/* ============================================================================
   CHATXPORT PWA – PREMIUM UI v2.0
   Dark-first design with glass effects, smooth animations, full responsive
   ============================================================================ */

/* === DESIGN TOKENS: DARK THEME (DEFAULT) === */
:root {
  /* Surface Colors */
  --color-bg: #0c0f14;
  --color-bg-elevated: #13161d;
  --color-bg-subtle: #1a1e27;
  --color-bg-muted: #242833;
  --color-bg-glass: rgba(19, 22, 29, 0.7);

  /* Text Colors */
  --color-text: #eef1f6;
  --color-text-secondary: #9ba3b5;
  --color-text-muted: #5c6478;
  --color-text-inverse: #0c0f14;

  /* Border Colors */
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-subtle: rgba(255, 255, 255, 0.04);
  --color-border-strong: rgba(255, 255, 255, 0.14);

  /* Brand: WhatsApp Green */
  --color-primary: #22c55e;
  --color-primary-dark: #16a34a;
  --color-primary-light: rgba(34, 197, 94, 0.15);
  --color-primary-lighter: rgba(34, 197, 94, 0.06);
  --color-primary-glow: rgba(34, 197, 94, 0.25);

  /* Accent Colors */
  --color-blue: #60a5fa;
  --color-blue-light: rgba(96, 165, 250, 0.12);
  --color-purple: #a78bfa;
  --color-purple-light: rgba(167, 139, 250, 0.12);
  --color-orange: #fb923c;
  --color-orange-light: rgba(251, 146, 60, 0.12);
  --color-red: #f87171;
  --color-red-light: rgba(248, 113, 113, 0.12);
  --color-amber: #f59e0b;
  --color-amber-light: rgba(245, 158, 11, 0.12);
  --color-amber-dark: #d97706;

  /* Spacing Scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;

  /* Typography */
  --font-sans: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Fira Code', Consolas, monospace;

  --text-xs: 0.6875rem;
  --text-sm: 0.8125rem;
  --text-base: 0.9375rem;
  --text-lg: 1.0625rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;

  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;

  /* Border Radius */
  --radius-sm: 6px;
  --radius: 8px;
  --radius-md: 10px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-2xl: 20px;
  --radius-3xl: 24px;
  --radius-full: 9999px;

  /* Shadows (dark-optimized) */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 24px var(--color-primary-glow);

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --transition-fast: 120ms var(--ease-out);
  --transition: 200ms var(--ease-out);
  --transition-slow: 350ms var(--ease-out);
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Z-Index */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 500;
  --z-modal: 1000;
  --z-tooltip: 1100;
  --z-install: 2000;
}

/* === LIGHT THEME === */
[data-theme="light"] {
  --color-bg: #f4f6f9;
  --color-bg-elevated: #ffffff;
  --color-bg-subtle: #edf0f5;
  --color-bg-muted: #dfe3eb;
  --color-bg-glass: rgba(255, 255, 255, 0.75);

  --color-text: #111827;
  --color-text-secondary: #4b5563;
  --color-text-muted: #9ca3af;
  --color-text-inverse: #ffffff;

  --color-border: rgba(0, 0, 0, 0.08);
  --color-border-subtle: rgba(0, 0, 0, 0.04);
  --color-border-strong: rgba(0, 0, 0, 0.14);

  --color-primary-light: rgba(34, 197, 94, 0.12);
  --color-primary-lighter: rgba(34, 197, 94, 0.05);
  --color-primary-glow: rgba(34, 197, 94, 0.2);

  --color-blue: #3b82f6;
  --color-blue-light: rgba(59, 130, 246, 0.1);
  --color-purple: #8b5cf6;
  --color-purple-light: rgba(139, 92, 246, 0.1);
  --color-orange: #f97316;
  --color-orange-light: rgba(249, 115, 22, 0.1);
  --color-red: #ef4444;
  --color-red-light: rgba(239, 68, 68, 0.1);
  --color-amber: #d97706;
  --color-amber-light: rgba(217, 119, 6, 0.1);
  --color-amber-dark: #b45309;

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.06);
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 24px 56px rgba(0, 0, 0, 0.16);
}

/* === RESET & BASE === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; color: inherit; }
input, select, textarea { font: inherit; color: inherit; }
img, svg { display: block; max-width: 100%; }

::selection {
  background: var(--color-primary);
  color: white;
}

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* === SCREENS === */
#app { min-height: 100vh; }

.screen {
  min-height: 100vh;
  opacity: 1;
  transition: opacity var(--transition-slow);
}

/* ============================================================================
   SCREEN 1: OPEN ARCHIVE
   ============================================================================ */
.screen--open {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  background: var(--color-bg);
  position: relative;
  overflow: hidden;
}

/* Ambient background glow */
.screen--open::before {
  content: '';
  position: absolute;
  top: -30%;
  left: -10%;
  width: 60%;
  height: 60%;
  background: radial-gradient(ellipse, var(--color-primary-glow) 0%, transparent 70%);
  opacity: 0.4;
  pointer-events: none;
  animation: ambientDrift 20s ease-in-out infinite alternate;
}

.screen--open::after {
  content: '';
  position: absolute;
  bottom: -20%;
  right: -15%;
  width: 50%;
  height: 50%;
  background: radial-gradient(ellipse, rgba(96, 165, 250, 0.12) 0%, transparent 70%);
  opacity: 0.3;
  pointer-events: none;
  animation: ambientDrift 25s ease-in-out infinite alternate-reverse;
}

@keyframes ambientDrift {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(30px, -20px) scale(1.1); }
}

.open-container {
  width: 100%;
  max-width: 640px;
  display: flex;
  flex-direction: column;
  min-height: calc(100vh - var(--space-12));
  position: relative;
  z-index: 1;
}

.open-header { padding: var(--space-4) 0; }

.open-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-5);
}

.open-footer {
  padding: var(--space-6) 0 var(--space-4);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border-subtle);
  margin-top: var(--space-6);
}
.open-footer__row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  justify-content: center;
}
.footer-divider {
  color: var(--color-border);
  user-select: none;
}
.footer-company {
  font-weight: var(--font-medium);
}
.footer-made {
  white-space: nowrap;
}
.footer-link {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color 0.15s;
}
.footer-link:hover { color: var(--color-primary); }

/* Brand */
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.brand--compact { gap: var(--space-2); }

.brand__icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 4px 16px var(--color-primary-glow);
  flex-shrink: 0;
}

.brand__icon--sm {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
}

.brand__icon img { border-radius: inherit; }

.brand__name {
  font-size: var(--text-base);
  font-weight: var(--font-bold);
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.brand__tagline {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: 1px;
}

/* Dropzone */
.dropzone {
  background: var(--color-bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-3xl);
  padding: var(--space-12) var(--space-8);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-slow);
  position: relative;
  overflow: hidden;
}

/* Animated dashed border overlay */
.dropzone::before {
  content: '';
  position: absolute;
  inset: 6px;
  border: 2px dashed var(--color-border-strong);
  border-radius: calc(var(--radius-3xl) - 4px);
  pointer-events: none;
  transition: border-color var(--transition), opacity var(--transition);
  opacity: 0.5;
}

.dropzone:hover,
.dropzone:focus-visible {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md), 0 0 40px var(--color-primary-glow);
  transform: translateY(-2px);
  outline: none;
}

.dropzone:hover::before,
.dropzone:focus-visible::before {
  border-color: var(--color-primary);
  opacity: 0.7;
}

.dropzone--active {
  background: var(--color-primary-lighter);
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px var(--color-primary-glow), var(--shadow-lg);
  transform: translateY(-3px) scale(1.005);
}

.dropzone--active::before {
  border-color: var(--color-primary);
  opacity: 1;
  animation: dashSpin 12s linear infinite;
}

@keyframes dashSpin {
  to { stroke-dashoffset: -100; }
}

.dropzone__icon {
  width: 52px;
  height: 52px;
  margin: 0 auto var(--space-4);
  color: var(--color-primary);
  opacity: 0.8;
  transition: all var(--transition);
}

.dropzone:hover .dropzone__icon {
  opacity: 1;
  transform: translateY(-2px);
}

.dropzone--active .dropzone__icon {
  opacity: 1;
  animation: bounceUp 0.6s var(--ease-out);
}

@keyframes bounceUp {
  0% { transform: translateY(0); }
  40% { transform: translateY(-12px); }
  100% { transform: translateY(-2px); }
}

.dropzone__icon svg { width: 100%; height: 100%; }

.dropzone__title {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-text);
  margin-bottom: var(--space-1);
  letter-spacing: -0.01em;
}

.dropzone__subtitle {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--space-5);
}

.dropzone__hint {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: var(--font-medium);
}

.dropzone__error {
  margin-top: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-red-light);
  color: var(--color-red);
  border-radius: var(--radius);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  display: none;
}

.dropzone__error:not(:empty) { display: block; }

/* Info Cards */
.info-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}

.info-card {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  transition: all var(--transition);
}

.info-card:hover {
  border-color: var(--color-border-strong);
  background: var(--color-bg-subtle);
}

.info-card svg {
  width: 18px;
  height: 18px;
  color: var(--color-primary);
  flex-shrink: 0;
}

/* ============================================================================
   SCREEN 2: ARCHIVE VIEWER
   ============================================================================ */
.screen--viewer {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  height: 100vh;
  background: var(--color-bg);
  overflow: hidden;
}

/* Viewer Header */
.viewer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-6);
  background: var(--color-bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.viewer-header__left {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.viewer-header__right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.viewer-header__actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Stats Bar */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  padding: var(--space-4) var(--space-6);
}

/* Tab Bar */
.tab-bar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0 var(--space-6);
  background: var(--color-bg-subtle);
  border-bottom: 1px solid var(--color-border);
  min-height: 42px;
}

.tab-bar__scroll {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  overflow-x: auto;
  flex: 1;
  padding: var(--space-1) 0;
  scrollbar-width: none;
}

.tab-bar__scroll::-webkit-scrollbar { display: none; }

.chat-tab {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: var(--color-bg-glass);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius) var(--radius) 0 0;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, border-color 0.15s;
  position: relative;
  flex-shrink: 0;
}

.chat-tab:hover {
  background: var(--color-bg-glass);
}

.chat-tab--active {
  background: var(--color-bg);
  border-color: var(--color-border);
  border-bottom-color: var(--color-bg);
  margin-bottom: -1px;
}

.chat-tab__info {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.chat-tab__name {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-tab--active .chat-tab__name {
  color: var(--color-primary);
}

.chat-tab__meta {
  font-size: 10px;
  color: var(--color-text-muted);
}

.chat-tab__close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  cursor: pointer;
  opacity: 0;
  transition: opacity 0.15s, background 0.15s;
}

.chat-tab:hover .chat-tab__close {
  opacity: 1;
}

.chat-tab__close:hover {
  background: var(--color-bg-muted);
  color: var(--color-text);
}

.tab-bar__add {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: none;
  border-radius: var(--radius);
  background: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  cursor: pointer;
  flex-shrink: 0;
  white-space: nowrap;
  margin-left: var(--space-3);
  position: relative;
  transition: background 0.15s, box-shadow 0.15s, transform 0.1s;
  box-shadow: 0 1px 6px var(--color-primary-glow);
}

.tab-bar__add::before {
  content: '';
  position: absolute;
  left: calc(-1 * var(--space-3) - 1px);
  top: 50%;
  transform: translateY(-50%);
  height: 20px;
  width: 1px;
  background: var(--color-border);
}

.tab-bar__add:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 2px 12px var(--color-primary-glow);
  transform: translateY(-1px);
}

.tab-bar__add:active {
  transform: translateY(0);
  box-shadow: 0 1px 4px var(--color-primary-glow);
}

.stat-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xs);
  transition: all var(--transition);
}

.stat-card:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

.stat-card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-card__icon svg { width: 22px; height: 22px; }

.stat-card--messages .stat-card__icon { background: var(--color-blue-light); color: var(--color-blue); }
.stat-card--images .stat-card__icon { background: var(--color-purple-light); color: var(--color-purple); }
.stat-card--videos .stat-card__icon { background: var(--color-primary-light); color: var(--color-primary); }
.stat-card--docs .stat-card__icon { background: var(--color-orange-light); color: var(--color-orange); }

.stat-card__value {
  font-size: var(--text-2xl);
  font-weight: var(--font-extrabold);
  color: var(--color-text);
  line-height: 1;
  letter-spacing: -0.02em;
}

.stat-card__label {
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 0 var(--space-6);
  margin-bottom: var(--space-3);
}

.toolbar__search {
  flex: 1;
  max-width: 400px;
  position: relative;
}

.search-icon {
  position: absolute;
  left: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--color-text-muted);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: var(--space-3) var(--space-4) var(--space-3) 38px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  transition: all var(--transition);
  color: var(--color-text);
}

.search-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.search-input::placeholder { color: var(--color-text-muted); }

.toolbar__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* View Switcher */
.view-switcher {
  display: flex;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 3px;
}

.view-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-muted);
  transition: all var(--transition);
}

.view-btn:hover { color: var(--color-text-secondary); }

.view-btn.active {
  background: var(--color-primary);
  color: white;
  box-shadow: 0 2px 8px var(--color-primary-glow);
}

.view-btn svg { flex-shrink: 0; }

/* Filters Panel */
.filters-panel {
  display: grid;
  grid-template-columns: repeat(4, 1fr) auto;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-6);
  margin: 0 var(--space-6) var(--space-3);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  animation: slideDown 0.25s var(--ease-out);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

/* Selection Bar */
.selection-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-6);
  margin: 0 var(--space-6) var(--space-3);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.selection-bar__left { display: flex; gap: var(--space-2); }

.selection-bar__right {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-muted);
}

/* Content Panel */
.content-panel {
  flex: 1;
  margin: 0 var(--space-6);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.view-content {
  flex: 1;
  min-height: 300px;
  overflow-y: auto;
  scroll-behavior: smooth;
}

/* Scrollbar Styling */
.view-content::-webkit-scrollbar { width: 6px; }
.view-content::-webkit-scrollbar-track { background: transparent; }
.view-content::-webkit-scrollbar-thumb {
  background: var(--color-border-strong);
  border-radius: var(--radius-full);
}
.view-content::-webkit-scrollbar-thumb:hover {
  background: var(--color-text-muted);
}

/* ============================================================================
   CONVERSATION VIEW
   ============================================================================ */
.conversation {
  padding: var(--space-4) var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  background: var(--color-bg-subtle);
  min-height: 100%;
}

.conversation__date {
  display: flex;
  justify-content: center;
  margin: var(--space-4) 0;
}

.conversation__date-badge {
  padding: var(--space-1) var(--space-3);
  background: var(--color-bg-glass);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-text-secondary);
}

.message {
  display: flex;
  gap: var(--space-2);
  max-width: 70%;
  animation: msgIn 0.3s var(--ease-out) both;
}

@keyframes msgIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.message--outgoing {
  margin-left: auto;
  flex-direction: row-reverse;
}

.message__avatar {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  background: var(--color-bg-muted);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: var(--font-bold);
  flex-shrink: 0;
  letter-spacing: 0.02em;
}

.message--outgoing .message__avatar {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
}

.message__bubble {
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  border-top-left-radius: var(--radius-sm);
}

.message--outgoing .message__bubble {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  border: none;
  border-radius: var(--radius-xl);
  border-top-right-radius: var(--radius-sm);
}

.message__header {
  display: flex;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-1);
}

.message__sender {
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  color: var(--color-text);
}

.message--outgoing .message__sender { color: rgba(255,255,255,0.9); }

.message__time {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.message--outgoing .message__time { color: rgba(255,255,255,0.65); }

.message__text {
  font-size: var(--text-sm);
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}

.message__attachments {
  margin-top: var(--space-2);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

/* ============================================================================
   TABLE VIEW
   ============================================================================ */
.table-container { overflow-x: auto; }

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table thead {
  position: sticky;
  top: 0;
  z-index: 1;
}

.data-table th {
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-subtle);
  border-bottom: 1px solid var(--color-border);
  text-align: left;
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.data-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border-subtle);
  vertical-align: top;
  font-size: var(--text-sm);
  transition: background var(--transition-fast);
}

.data-table tbody tr:hover td { background: var(--color-bg-subtle); }
.data-table tbody tr.selected td { background: var(--color-primary-lighter); }

.col-check { width: 44px; text-align: center; }
.col-num { width: 50px; color: var(--color-text-muted); }
.col-date { width: 120px; }
.col-sender { width: 160px; }
.col-message { min-width: 200px; }
.col-attachments { width: 160px; }

.table-sender { display: flex; align-items: center; gap: var(--space-2); }

.table-sender__avatar {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: var(--color-bg-muted);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: var(--font-bold);
  flex-shrink: 0;
}

.table-sender__name {
  font-weight: var(--font-semibold);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.table-date { font-weight: var(--font-semibold); }
.table-time { font-size: var(--text-xs); color: var(--color-text-muted); }

.table-message {
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.5;
}

.show-more-link {
  color: var(--color-primary);
  font-weight: var(--font-semibold);
  cursor: pointer;
  display: inline-block;
  margin-top: var(--space-1);
  font-size: var(--text-xs);
}

.show-more-link:hover { text-decoration: underline; }

/* ============================================================================
   TIMELINE VIEW
   ============================================================================ */
.timeline {
  padding: var(--space-4) var(--space-4) var(--space-4) var(--space-8);
  position: relative;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-border) 30%, var(--color-border) 70%, transparent 100%);
}

.timeline__date { margin: var(--space-6) 0 var(--space-4); }

.timeline__date-badge {
  display: inline-flex;
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  color: var(--color-text-secondary);
}

.timeline__item {
  position: relative;
  padding-left: var(--space-8);
  margin-bottom: var(--space-3);
}

.timeline__item::before {
  content: '';
  position: absolute;
  left: -22px;
  top: 16px;
  width: 10px;
  height: 10px;
  background: var(--color-primary);
  border-radius: var(--radius-full);
  border: 2px solid var(--color-bg-elevated);
  box-shadow: 0 0 0 2px var(--color-primary-light);
}

.timeline__card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  box-shadow: var(--shadow-xs);
  transition: all var(--transition);
}

.timeline__card:hover {
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-sm);
}

.timeline__header {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.timeline__sender { font-weight: var(--font-bold); color: var(--color-text); }
.timeline__time { font-size: var(--text-xs); color: var(--color-text-muted); }

.timeline__text {
  font-size: var(--text-sm);
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--color-text);
}

.timeline__attachments {
  margin-top: var(--space-2);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

/* ============================================================================
   PAGINATION
   ============================================================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-6);
  margin-top: var(--space-3);
}

.pagination__info {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.pagination__controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: nowrap;
}

.pagination__pages {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  white-space: nowrap;
  min-width: 100px;
  text-align: center;
}

/* Viewer Footer */
.viewer-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-6);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
}

.viewer-footer__left,
.viewer-footer__right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.footer-brand {
  font-weight: var(--font-bold);
  font-size: var(--text-sm);
}

.footer-note {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.footer-help {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  opacity: 0.75;
}

.version-badge {
  padding: var(--space-1) var(--space-2);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  color: var(--color-text-secondary);
}

/* ============================================================================
   BUTTONS
   ============================================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.btn:hover {
  border-color: var(--color-border-strong);
  background: var(--color-bg-subtle);
}

.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; pointer-events: none; }

.btn--primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-color: transparent;
  color: white;
  box-shadow: 0 4px 14px var(--color-primary-glow);
}

.btn--primary:hover {
  box-shadow: 0 6px 20px var(--color-primary-glow);
  border-color: transparent;
  background: linear-gradient(135deg, #2dd468 0%, var(--color-primary) 100%);
}

.btn--outline {
  background: transparent;
  border-color: var(--color-border);
}

.btn--outline:hover {
  background: var(--color-bg-subtle);
  border-color: var(--color-border-strong);
}

.btn--ghost {
  background: transparent;
  border-color: transparent;
  color: var(--color-text-secondary);
}

.btn--ghost:hover {
  background: var(--color-bg-subtle);
  color: var(--color-text);
  border-color: transparent;
}

.btn--sm { padding: var(--space-1) var(--space-3); font-size: var(--text-xs); }
.btn--lg { padding: var(--space-3) var(--space-6); font-size: var(--text-base); }
.btn--block { width: 100%; }
.btn--icon { padding: var(--space-2); }

.btn__text { display: inline; }
.btn__loader { display: none; align-items: center; gap: var(--space-2); }
.btn--loading .btn__text { display: none; }
.btn--loading .btn__loader { display: inline-flex; }

.spinner {
  width: 18px;
  height: 18px;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================================
   FORMS
   ============================================================================ */
.form-group { margin-bottom: var(--space-4); }

.form-label {
  display: block;
  margin-bottom: var(--space-1);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-secondary);
}

.form-input,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  color: var(--color-text);
  transition: all var(--transition);
}

.form-input:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.form-input::placeholder { color: var(--color-text-muted); }
.form-input--lg { padding: var(--space-4) var(--space-5); font-size: var(--text-base); }
.form-select--sm { padding: var(--space-2) var(--space-3); font-size: var(--text-xs); }

.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235c6478' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
  appearance: none;
}

input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-primary);
  cursor: pointer;
}

/* ============================================================================
   ATTACHMENT CHIPS
   ============================================================================ */
.attachment-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition);
}

.attachment-chip:hover {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.attachment-chip svg { width: 12px; height: 12px; }

.message--outgoing .attachment-chip {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.2);
  color: white;
}

.message--outgoing .attachment-chip:hover {
  background: rgba(255,255,255,0.25);
}

/* ============================================================================
   MODALS
   ============================================================================ */
.modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}

.modal--open { display: flex; }

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  animation: fadeIn 0.2s var(--ease-out);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal__container {
  position: relative;
  width: 100%;
  max-width: 480px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  animation: modalIn 0.3s var(--ease-out);
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(12px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal__container--sm { max-width: 400px; }
.modal__container--lg { max-width: 800px; }

.modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: var(--color-bg-subtle);
  border-bottom: 1px solid var(--color-border);
}

.modal__title {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-text);
}

.modal__actions { display: flex; gap: var(--space-2); }

.modal__body {
  padding: var(--space-5);
  max-height: 60vh;
  overflow-y: auto;
}

.modal__description {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.modal__footer {
  padding: var(--space-4) var(--space-5);
  background: var(--color-bg-subtle);
  border-top: 1px solid var(--color-border);
}

/* Sender List */
.sender-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.sender-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-elevated);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition);
}

.sender-item:hover {
  border-color: var(--color-primary-light);
  background: var(--color-primary-lighter);
}

.sender-item--selected {
  border-color: var(--color-primary);
  background: var(--color-primary-lighter);
}

.sender-item__avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: var(--color-bg-muted);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-bold);
  font-size: var(--text-sm);
  flex-shrink: 0;
}

.sender-item--selected .sender-item__avatar {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
}

.sender-item__info { flex: 1; min-width: 0; }

.sender-item__name {
  font-weight: var(--font-semibold);
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sender-item__count {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* ============================================================================
   THEME TOGGLE
   ============================================================================ */
.theme-toggle {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition);
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--color-bg-muted);
  color: var(--color-text);
}

.theme-toggle svg { width: 18px; height: 18px; }

.theme-toggle__icon--light,
[data-theme="light"] .theme-toggle__icon--dark { display: none; }
[data-theme="light"] .theme-toggle__icon--light { display: block; }

/* ============================================================================
   LOADING SKELETON
   ============================================================================ */
.skeleton {
  display: none;
  flex-direction: column;
  gap: var(--space-3);
  padding: var(--space-6);
}

.skeleton--active { display: flex; }

.skeleton__bar {
  height: 14px;
  border-radius: var(--radius);
  background: linear-gradient(90deg,
    var(--color-bg-muted) 25%,
    var(--color-bg-subtle) 37%,
    var(--color-bg-muted) 63%
  );
  background-size: 400% 100%;
  animation: shimmer 1.4s ease infinite;
}

.skeleton__bar--short { width: 40%; }
.skeleton__bar--medium { width: 70%; }
.skeleton__bar--long { width: 90%; }
.skeleton__bar--full { width: 100%; }

.skeleton__row {
  display: flex;
  gap: var(--space-3);
  align-items: center;
}

.skeleton__circle {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg,
    var(--color-bg-muted) 25%,
    var(--color-bg-subtle) 37%,
    var(--color-bg-muted) 63%
  );
  background-size: 400% 100%;
  animation: shimmer 1.4s ease infinite;
  flex-shrink: 0;
}

.skeleton__block {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

@keyframes shimmer {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}

/* ============================================================================
   PWA INSTALL PROMPT
   ============================================================================ */
.install-prompt {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--color-bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  color: var(--color-text);
  padding: 12px 20px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-install);
  font-size: var(--text-sm);
  border: 1px solid var(--color-border);
  max-width: 90vw;
  animation: slideUp 0.4s var(--ease-out);
}

@keyframes slideUp {
  from { opacity: 0; transform: translate(-50%, 20px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

.install-prompt span:first-child { white-space: nowrap; }
.install-prompt__dismiss {
  padding: 4px;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ============================================================================
   MOBILE MENU BUTTON (hidden on desktop, visible on mobile)
   ============================================================================ */
.mobile-menu-btn { display: none; }
  inset: 0;
  z-index: calc(var(--z-modal) + 20);
  align-items: flex-end;
  justify-content: center;
}
/* ============================================================================
   MOBILE MENU BUTTON (hidden on desktop, visible on mobile)
   ============================================================================ */
.mobile-menu-btn { display: none; }

/* ============================================================================
   MOBILE ACTIONS BOTTOM SHEET
   ============================================================================ */
.mobile-actions-sheet {
  display: none;
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-modal) + 15);
  align-items: flex-end;
  justify-content: center;
}
.mobile-actions-sheet--open { display: flex; }
.mobile-actions-sheet__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.mobile-actions-sheet__card {
  position: relative;
  z-index: 1;
  background: var(--color-bg-elevated);
  border-radius: var(--radius-2xl) var(--radius-2xl) 0 0;
  padding: var(--space-4) var(--space-5) calc(var(--space-6) + env(safe-area-inset-bottom));
  width: 100%;
  max-width: 480px;
  border: 1px solid var(--color-border);
  border-bottom: none;
  animation: iosSheetUp 0.3s var(--ease-out);
}
.mobile-actions-sheet__handle {
  width: 36px; height: 4px;
  background: var(--color-border-strong);
  border-radius: 2px;
  margin: 0 auto var(--space-4);
}
.mobile-actions-sheet__title {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
  text-align: center;
}
.mobile-actions-sheet__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}
.mobile-action-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: var(--space-3) var(--space-2);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  cursor: pointer;
  font-size: 12px;
  color: var(--color-text);
  font-weight: var(--font-medium);
  transition: background var(--transition), border-color var(--transition);
}
.mobile-action-item:active {
  background: var(--color-bg);
  border-color: var(--color-primary);
}
.mobile-action-item__icon {
  width: 40px; height: 40px;
  background: var(--color-bg-elevated);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  border: 1px solid var(--color-border);
}
.mobile-action-item--danger .mobile-action-item__icon { color: var(--color-red, #ef4444); }
.mobile-action-item__badge {
  position: absolute;
  top: -4px; right: -4px;
  background: var(--color-amber, #f59e0b);
  color: #fff;
  font-size: 9px;
  font-weight: 700;
  width: 16px; height: 16px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}

/* iOS printing: show print content, hide app */
body.ios-printing #app { display: none !important; }
body.ios-printing #printContent {
  display: block !important;
  position: static !important;
  width: 100% !important;
  left: auto !important;
  overflow: visible !important;
}

/* ============================================================================
   RESPONSIVE: TABLET (≤1024px)
   ============================================================================ */
@media (max-width: 1024px) {
  .stats-bar { grid-template-columns: repeat(2, 1fr); }
  .filters-panel { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================================
   RESPONSIVE: MOBILE (≤768px)
   ============================================================================ */
@media (max-width: 768px) {
  :root { --space-6: 12px; }

  /* Compact header — two-row layout on mobile */
  .viewer-header {
    flex-wrap: wrap;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
  }

  .viewer-header__left {
    flex: 1;
    min-width: 0;
    order: 1;
  }
  .viewer-header__left .brand__name { font-size: var(--text-sm); }
  .viewer-header__left .brand__tagline { font-size: 10px; }
  .viewer-header__left .brand__icon--sm { width: 30px; height: 30px; }
  .viewer-header__left .brand__icon--sm img { width: 22px; height: 22px; }

  .viewer-header__right {
    order: 2;
    gap: var(--space-1);
    flex-shrink: 0;
  }
  .viewer-header__right .btn { padding: var(--space-1) var(--space-2); font-size: var(--text-xs); }
  .viewer-header__right .btn span { display: none; }
  .viewer-header__right .btn svg { width: 16px; height: 16px; }
  .viewer-header__right .theme-toggle { width: 28px; height: 28px; }
  .viewer-header__right .theme-toggle svg { width: 14px; height: 14px; }
  .viewer-header__right .tier-badge { font-size: 9px; padding: 1px 6px; }

  /* Action buttons — full-width second row */
  .viewer-header__actions {
    order: 3;
    width: 100%;
    justify-content: stretch;
    gap: var(--space-1);
    padding-top: var(--space-1);
    border-top: 1px solid var(--color-border-subtle);
  }
  .viewer-header__actions .btn {
    flex: 1;
    justify-content: center;
    padding: var(--space-1) var(--space-2);
    font-size: var(--text-xs);
  }
  .viewer-header__actions .btn span:not(.bookmark-count-badge) { display: none; }
  .viewer-header__actions .btn svg { width: 15px; height: 15px; }
  .viewer-header__close { flex: 0 !important; padding: var(--space-1) !important; }

  /* Workspace indicator on mobile */
  .workspace-indicator { max-width: 120px; }
  .workspace-indicator span { font-size: 10px; }

  /* Cross-search toggle on mobile */
  .cross-search-toggle span { display: none; }
  .cross-search-toggle { padding: var(--space-1) var(--space-2); font-size: var(--text-xs); }

  /* Cross-search results */
  .cross-search-results { padding: var(--space-2) var(--space-3); }
  .cross-search__bm-btn { font-size: 14px; }
  .cs-col-num { display: none; }
  .cs-col-date { width: 70px; }
  .cs-col-sender { width: 80px; }
  .cross-search__table td { padding: 6px; font-size: 12px; }
  .cross-search__table thead th { padding: 4px 6px; }

  /* Cases banner compact */
  .cases-banner__text { font-size: var(--text-xs); }

  /* Tab bar compact */
  .tab-bar {
    padding: 0 var(--space-3);
    min-height: 36px;
  }
  .chat-tab {
    padding: var(--space-1) var(--space-2);
  }
  .chat-tab__name {
    font-size: var(--text-xs);
    max-width: 100px;
  }
  .chat-tab__meta { font-size: 9px; }
  .chat-tab__close { opacity: 1; width: 16px; height: 16px; }

  /* Compact stats - horizontal scroll strip */
  .stats-bar {
    display: flex;
    overflow-x: auto;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }
  .stats-bar::-webkit-scrollbar { display: none; }

  .stat-card {
    flex: 0 0 auto;
    min-width: 100px;
    padding: var(--space-2) var(--space-3);
    gap: var(--space-2);
  }
  .stat-card__icon { width: 30px; height: 30px; }
  .stat-card__icon svg { width: 14px; height: 14px; }
  .stat-card__value { font-size: var(--text-base); }
  .stat-card__label { font-size: 10px; }

  /* Compact toolbar */
  .toolbar {
    flex-direction: row;
    flex-wrap: wrap;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    margin-bottom: var(--space-2);
  }
  .toolbar__search { max-width: none; width: 100%; order: 2; }
  .search-input { padding: var(--space-2) var(--space-3) var(--space-2) 32px; font-size: var(--text-xs); }
  .search-icon { width: 14px; height: 14px; left: 10px; }
  .toolbar__actions { width: 100%; justify-content: space-between; order: 1; }
  .toolbar__actions .btn--ghost { padding: var(--space-1) var(--space-2); font-size: var(--text-xs); }
  .toolbar__actions .btn--ghost svg { width: 14px; height: 14px; }

  /* Compact view switcher */
  .view-switcher { padding: 2px; }
  .view-btn { padding: var(--space-1) var(--space-2); font-size: var(--text-xs); }
  .view-btn svg { width: 14px; height: 14px; }
  .view-btn span { display: none; }

  /* Filters */
  .filters-panel {
    grid-template-columns: 1fr;
    gap: var(--space-2);
    padding: var(--space-3);
    margin: 0 var(--space-3) var(--space-2);
  }

  /* Selection bar */
  .selection-bar {
    margin: 0 var(--space-3) var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
  }
  .selection-bar .btn--sm { font-size: 10px; padding: 2px 6px; }

  /* Content panel */
  .content-panel {
    margin: 0 var(--space-3);
    border-radius: var(--radius-lg);
  }

  /* ---- MOBILE TABLE → CARD LAYOUT ---- */
  .data-table thead { display: none; }

  .data-table,
  .data-table tbody,
  .data-table tr,
  .data-table td {
    display: block;
    width: 100%;
  }

  .data-table tbody tr {
    padding: var(--space-3);
    margin-bottom: var(--space-2);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: var(--color-bg-elevated);
    position: relative;
  }

  .data-table tbody tr:last-child { margin-bottom: 0; }

  .data-table td {
    padding: 0;
    border: none;
    font-size: var(--text-xs);
  }

  .data-table td.col-check {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    width: auto;
    text-align: right;
  }

  .data-table td.col-num {
    display: none;
  }

  .data-table td.col-date {
    width: auto;
    margin-bottom: var(--space-1);
  }

  .data-table td.col-date .table-date,
  .data-table td.col-date .table-time {
    display: inline;
    font-size: 10px;
    color: var(--color-text-muted);
  }

  .data-table td.col-date .table-date::after {
    content: ' · ';
  }

  .data-table td.col-sender {
    width: auto;
    margin-bottom: var(--space-2);
  }

  .data-table td.col-sender .table-sender__name {
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
  }

  .data-table td.col-message {
    min-width: 0;
    margin-bottom: var(--space-2);
    line-height: 1.45;
  }

  .data-table td.col-message .table-message {
    font-size: var(--text-xs);
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .data-table td.col-attachments {
    width: auto;
  }

  .data-table tbody tr.selected {
    border-color: var(--color-primary);
    background: var(--color-primary-lighter);
  }

  /* ---- END MOBILE TABLE ---- */

  /* Conversation */
  .conversation { padding: var(--space-2) var(--space-3); gap: var(--space-1); }
  .conversation__date { margin: var(--space-2) 0; }
  .conversation__date-badge { font-size: 10px; padding: 2px 8px; }
  .message { max-width: 85%; }
  .message__avatar { width: 26px; height: 26px; font-size: 9px; }
  .message__bubble { padding: var(--space-2) var(--space-3); }
  .message__sender { font-size: 10px; }
  .message__time { font-size: 10px; }
  .message__text { font-size: var(--text-xs); line-height: 1.45; }

  /* Compact pagination */
  .pagination {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
  }
  .pagination__info { font-size: var(--text-xs); width: 100%; text-align: center; }
  .pagination__controls { gap: var(--space-2); }
  .pagination__pages { font-size: var(--text-xs); min-width: 80px; }
  .pagination__controls .btn--sm { font-size: 10px; padding: 2px 6px; }

  /* Compact footer */
  .viewer-footer {
    flex-direction: column;
    gap: var(--space-1);
    text-align: center;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
  }
  .viewer-footer__left,
  .viewer-footer__right {
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-2);
  }
  .footer-brand { font-size: var(--text-xs); }
  .footer-note { font-size: 10px; }
  .footer-help { font-size: 10px; }
  .footer-made { font-size: 10px; }
  .footer-divider { font-size: 10px; }

  /* Open screen */
  .screen--open { padding: var(--space-4); }
  .dropzone { padding: var(--space-6) var(--space-4); }
  .dropzone__icon { width: 36px; height: 36px; }
  .dropzone__title { font-size: var(--text-base); }
  .dropzone__subtitle { font-size: var(--text-xs); }
  .info-cards { grid-template-columns: 1fr; gap: var(--space-2); }
  .info-card { font-size: var(--text-xs); padding: var(--space-2) var(--space-3); }
}

/* ============================================================================
   RESPONSIVE: SMALL MOBILE (≤480px)
   ============================================================================ */
@media (max-width: 480px) {
  .stat-card { min-width: 85px; }
  .stat-card__icon { width: 26px; height: 26px; }
  .stat-card__icon svg { width: 12px; height: 12px; }
  .stat-card__value { font-size: var(--text-sm); }
  .stat-card__label { font-size: 9px; }

  .message { max-width: 90%; }
  .message__avatar { width: 22px; height: 22px; font-size: 8px; }

  .modal__container { border-radius: var(--radius-xl); }
  .modal { padding: var(--space-3); }

  .install-prompt {
    bottom: 8px;
    padding: 8px 12px;
    font-size: 11px;
    gap: 6px;
  }

  .pagination__controls .btn--sm svg { width: 12px; height: 12px; }

  /* Small mobile: hide workspace name, just show icon */
  .workspace-indicator span { display: none; }
  .workspace-indicator { max-width: none; padding: var(--space-1) var(--space-2); }
}

/* ============================================================================
   CONFIRM MODAL (replaces browser confirm())
   ============================================================================ */
.confirm-modal {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-modal) + 10);
  display: none;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}

.confirm-modal--open { display: flex; }

.confirm-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  animation: fadeIn 0.15s var(--ease-out);
}

.confirm-modal__card {
  position: relative;
  width: 100%;
  max-width: 420px;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  padding: var(--space-6);
  text-align: center;
  animation: modalIn 0.25s var(--ease-out);
}

.confirm-modal__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-4);
  background: var(--color-red-light);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-red);
}

.confirm-modal__icon svg { width: 24px; height: 24px; }

.confirm-modal__title {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.confirm-modal__message {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  line-height: 1.5;
}

.confirm-modal__actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.confirm-modal__actions .btn { flex: 1; }

.btn--danger {
  background: var(--color-red);
  border-color: transparent;
  color: white;
}

.btn--danger:hover {
  background: #dc2626;
  border-color: transparent;
}

/* ============================================================================
   PRINT OPTIONS MODAL
   ============================================================================ */
.print-option {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition);
}

.print-option:hover {
  border-color: var(--color-border-strong);
  background: var(--color-bg-subtle);
}

.print-option input[type="radio"] {
  margin-top: 3px;
  accent-color: var(--color-primary);
  flex-shrink: 0;
}

.print-option:has(input:checked) {
  border-color: var(--color-primary);
  background: var(--color-primary-lighter);
}

.print-option__body {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.print-option__body strong {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

.print-option__body span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.print-warning {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  padding: var(--space-3);
  background: var(--color-orange-light);
  border-radius: var(--radius);
  font-size: var(--text-xs);
  color: var(--color-orange);
  line-height: 1.4;
}

.print-warning svg { flex-shrink: 0; margin-top: 1px; }

.print-range-inputs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  margin-left: 24px;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.print-range-input {
  width: 56px;
  padding: var(--space-1) var(--space-2);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: var(--text-sm);
  text-align: center;
}

.print-range-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-lighter);
}

.print-layout-toggle {
  margin-top: 4px;
  padding-top: 12px;
  border-top: 1px solid var(--color-border);
}
.print-density-opt {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius);
  cursor: pointer;
  font-size: var(--text-sm);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.print-density-opt:hover { background: var(--color-bg-subtle); }
.print-density-opt:has(input:checked) {
  border-color: var(--color-primary);
  background: var(--color-primary-lighter);
}
.print-density-opt input { display: none; }

/* Loading overlay */
.print-loading {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-modal) + 20);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.print-loading__card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-8) var(--space-10);
  text-align: center;
  box-shadow: var(--shadow-xl);
}

.print-loading__card p {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin: var(--space-4) 0 var(--space-1);
}

.print-loading__card span {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  margin: 0 auto;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ZIP Loading Overlay */
.zip-loading {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.zip-loading__card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-xl);
  padding: var(--space-8) var(--space-10);
  text-align: center;
  min-width: 260px;
}

.zip-loading__card p {
  margin: var(--space-4) 0 var(--space-1);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

.zip-loading__card span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  word-break: break-all;
}

/* Empty State (no filter results) */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-10) var(--space-6);
  gap: var(--space-3);
  color: var(--color-text-muted);
}

.empty-state svg { opacity: 0.4; }

.empty-state p {
  font-size: var(--text-sm);
  margin: 0;
}

.empty-state__clear {
  margin-top: var(--space-1);
}

/* Browser Compatibility Banner */
.compat-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: calc(var(--z-modal) + 30);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-orange);
  color: #fff;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
}
.compat-banner button {
  flex-shrink: 0;
  background: none;
  border: none;
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  padding: 4px;
  opacity: 0.8;
}
.compat-banner button:hover { opacity: 1; }

/* Onboarding Overlay */
.onboarding-overlay {
  position: fixed;
  inset: 0;
  z-index: calc(var(--z-modal) + 25);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0,0,0,0);
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
  padding: var(--space-4);
  transition: background 0.3s ease, backdrop-filter 0.3s ease, -webkit-backdrop-filter 0.3s ease;
}
.onboarding-overlay--visible {
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}
.onboarding-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-8) var(--space-8) var(--space-6);
  max-width: 440px;
  width: 100%;
  text-align: center;
  box-shadow: var(--shadow-xl);
  transform: translateY(20px) scale(0.97);
  opacity: 0;
  transition: transform 0.35s var(--ease-out), opacity 0.3s ease;
}
.onboarding-overlay--visible .onboarding-card {
  transform: translateY(0) scale(1);
  opacity: 1;
}
.onboarding-card__logo {
  margin-bottom: var(--space-4);
}
.onboarding-card__logo img {
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 12px rgba(34, 197, 94, 0.2);
}
.onboarding-card h2 {
  margin: 0 0 var(--space-2);
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--color-text);
}
.onboarding-card__subtitle {
  margin: 0 0 var(--space-5);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  line-height: 1.5;
}
.onboarding-steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  text-align: left;
}
.onboarding-step {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}
.onboarding-step__num {
  width: 28px;
  height: 28px;
  min-width: 28px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  font-size: var(--text-sm);
  font-weight: var(--font-bold);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}
.onboarding-step__text {
  font-size: var(--text-sm);
  color: var(--color-text);
  line-height: 1.45;
}
.onboarding-step__text span {
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}
.onboarding-card__btn {
  width: 100%;
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
}
.onboarding-card__help {
  display: block;
  margin-top: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-decoration: none;
}
.onboarding-card__help:hover {
  color: var(--color-primary);
}

@media (max-width: 480px) {
  .onboarding-card {
    padding: var(--space-5) var(--space-4) var(--space-4);
  }
  .onboarding-step {
    padding: var(--space-2) var(--space-3);
  }
}

/* ============================================================================
   TOAST NOTIFICATION
   ============================================================================ */
.toast {
  position: fixed;
  bottom: -60px;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-3) var(--space-5);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text);
  z-index: calc(var(--z-modal) + 20);
  transition: bottom 0.3s var(--ease-out);
  white-space: normal;
  max-width: min(420px, calc(100vw - 32px));
  text-align: center;
  word-break: break-word;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
}

.toast--visible { bottom: 24px; }

/* ============================================================================
   PRINT STYLES — Simple: hide #app, print #printContent (injected by JS)
   ============================================================================ */
@media print {
  * { color-adjust: exact; -webkit-print-color-adjust: exact; print-color-adjust: exact; }

  body {
    background: white !important;
    color: black !important;
    overflow: visible !important;
    height: auto !important;
  }

  /* Hide the entire app UI */
  #app { display: none !important; }

  /* Show injected print content */
  #printContent {
    display: block !important;
    position: static !important;
    left: auto !important;
    width: 100% !important;
    overflow: visible !important;
  }

  /* Hide any modals/overlays */
  .confirm-modal, .print-loading, .zip-loading, .toast { display: none !important; }

  @page { margin: 12mm 8mm 15mm 8mm; }
}

/* ============================================================================
   PDF CONTROLS
   ============================================================================ */
#pdfControls {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

#pdfPageInfo {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-medium);
  min-width: 60px;
  text-align: center;
}

#pdfCanvas {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  box-shadow: var(--shadow);
  border-radius: var(--radius);
}

/* ============================================================================
   M3: LICENSE & GATING STYLES
   ============================================================================ */

/* === TIER BADGE === */
.tier-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border-radius: 999px;
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: 0.3px;
  text-transform: uppercase;
  white-space: nowrap;
  line-height: 1.6;
}

.tier-badge--free {
  background: var(--color-bg-muted);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

.tier-badge--personal {
  background: var(--color-primary-light);
  color: var(--color-primary);
  border: 1px solid rgba(34, 197, 94, 0.25);
}

.tier-badge--pro {
  background: var(--color-purple-light);
  color: var(--color-purple);
  border: 1px solid rgba(167, 139, 250, 0.25);
}

/* === UPGRADE BANNER === */
.upgrade-banner {
  background: var(--color-amber-light);
  border: 1px solid rgba(245, 158, 11, 0.2);
  border-radius: var(--radius);
  margin: 0 var(--space-4) var(--space-2);
  padding: 0;
  animation: fadeSlideIn 0.3s ease;
}

.upgrade-banner__content {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  flex-wrap: wrap;
}

.upgrade-banner__content > svg {
  color: var(--color-amber);
  flex-shrink: 0;
}

.upgrade-banner__content > span {
  font-size: var(--text-sm);
  color: var(--color-text);
  flex: 1;
  min-width: 180px;
}

.upgrade-banner__content > span strong {
  color: var(--color-amber-dark);
  font-weight: var(--font-bold);
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* === GATED BUTTON INDICATOR === */
.btn--gated {
  position: relative;
}

.btn--gated::after {
  content: '';
  position: absolute;
  top: -3px;
  right: -3px;
  width: 8px;
  height: 8px;
  background: var(--color-amber);
  border-radius: 50%;
  border: 2px solid var(--color-bg-elevated);
}

/* === LICENSE MODAL ADDITIONS === */
.license-input-group {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-4);
}

.form-input--license {
  flex: 1;
  font-family: var(--font-mono);
  font-size: var(--text-base);
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.license-error {
  margin-top: var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: var(--color-red-light);
  color: var(--color-red);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
}

.license-success {
  margin-top: var(--space-3);
  padding: var(--space-2) var(--space-3);
  background: var(--color-primary-light);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
}

.license-purchase {
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.license-purchase p {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.license-purchase a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

/* === LICENSE INFO (active license) === */
.license-info {
  background: var(--color-bg-subtle);
  border-radius: var(--radius);
  padding: var(--space-4);
  border: 1px solid var(--color-border);
}

.license-info__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) 0;
}

.license-info__row + .license-info__row {
  border-top: 1px solid var(--color-border-subtle);
}

.license-info__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: var(--font-medium);
}

.license-info__key {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  background: var(--color-bg-muted);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
}

.license-tier-label {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  padding: 2px 10px;
  border-radius: 999px;
}

.license-tier-label--personal {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.license-tier-label--pro {
  background: var(--color-purple-light);
  color: var(--color-purple);
}

/* === UPGRADE PROMPT MODAL ADDITIONS === */
.license-pricing-hint {
  display: flex;
  justify-content: center;
  gap: var(--space-6);
  margin: var(--space-3) 0 var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.license-pricing-hint strong {
  color: var(--color-text);
}

/* Pro-tier upgrade button (purple) */
.btn--pro-upgrade {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: none;
  border-radius: var(--radius);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  cursor: pointer;
  transition: background 0.15s, box-shadow 0.15s;
  background: var(--color-purple, #a78bfa);
  color: white;
}
.btn--pro-upgrade:hover {
  background: #9374e8;
  box-shadow: 0 2px 8px rgba(167, 139, 250, 0.3);
}

/* === DESKTOP-ONLY LABEL FOR LICENSE BTN === */
.btn__label--desktop {
  display: none;
}

@media (min-width: 640px) {
  .btn__label--desktop {
    display: inline;
  }
}

/* === RESPONSIVE: UPGRADE BANNER === */
@media (max-width: 480px) {
  .upgrade-banner__content {
    padding: var(--space-2) var(--space-3);
    gap: var(--space-2);
  }

  .upgrade-banner__content > span {
    font-size: var(--text-xs);
    min-width: 140px;
  }
}

/* === PRINT: HIDE LICENSE UI === */
@media print {
  .upgrade-banner,
  .tier-badge,
  #licenseBtn,
  #licenseBtnOpen {
    display: none !important;
  }
}

/* ============================================================================
   M4: BOOKMARKS & NOTES STYLES
   ============================================================================ */

/* === MESSAGE ACTION BUTTONS === */
.msg-actions {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  margin-left: auto;
  flex-shrink: 0;
}

.msg-action-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  padding: 0;
  position: relative;
  opacity: 0.5;
  transition: opacity 0.15s, color 0.15s, background 0.15s;
}

.msg-action-btn:hover {
  opacity: 1;
  background: var(--color-bg-muted);
}

.msg-action-btn--active {
  color: var(--color-amber);
  opacity: 1;
}

.msg-action-btn--has-note {
  color: var(--color-purple);
  opacity: 0.8;
}

.note-dot {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 6px;
  height: 6px;
  background: var(--color-purple);
  border-radius: 50%;
}

/* Show action buttons on hover in conversation/timeline */
.message:hover .msg-actions,
.timeline__card:hover .msg-actions {
  opacity: 1;
}

.message .msg-actions,
.timeline__card .msg-actions {
  opacity: 0;
  transition: opacity 0.15s;
}

/* Always show container if it has an active bookmark or note */
.message .msg-actions--visible,
.timeline__card .msg-actions--visible {
  opacity: 1;
}

/* Always show if active */
.msg-action-btn--active,
.msg-action-btn--has-note {
  opacity: 1 !important;
}

/* Outgoing (green) bubble icon colors */
.message--outgoing .msg-action-btn {
  color: rgba(255, 255, 255, 0.5);
}

.message--outgoing .msg-action-btn:hover {
  color: rgba(255, 255, 255, 0.9);
  background: rgba(255, 255, 255, 0.15);
}

.message--outgoing .msg-action-btn--active {
  color: #fcd34d;
}

.message--outgoing .msg-action-btn--has-note {
  color: #e9d5ff;
}

.message--outgoing .note-dot {
  background: #e9d5ff;
}

/* Note preview on outgoing (green) bubbles */
.message--outgoing .msg-note-preview {
  background: rgba(255, 255, 255, 0.15);
  border-left-color: rgba(255, 255, 255, 0.5);
  color: rgba(255, 255, 255, 0.9);
}

/* In message header — flex layout fix */
.message__header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.timeline__header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* === NOTE PREVIEW INLINE === */
.msg-note-preview {
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
  margin-top: var(--space-2);
  padding: var(--space-1) var(--space-2);
  background: var(--color-purple-light);
  border-left: 2px solid var(--color-purple);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: var(--text-xs);
  color: var(--color-purple);
  cursor: pointer;
  transition: background 0.15s;
}

.msg-note-preview:hover {
  background: rgba(167, 139, 250, 0.18);
}

.msg-note-preview svg {
  flex-shrink: 0;
  margin-top: 1px;
}

/* === TABLE ACTIONS COLUMN === */
.col-actions {
  width: 60px;
  text-align: center;
  padding: var(--space-1) !important;
}

/* === BOOKMARK PANEL (slide-out) === */
.bookmark-panel {
  position: fixed;
  top: 0;
  right: -360px;
  width: 340px;
  max-width: 90vw;
  height: 100vh;
  background: var(--color-bg-elevated);
  border-left: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl);
  z-index: 1100;
  display: flex;
  flex-direction: column;
  transition: right 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.bookmark-panel--open {
  right: 0;
}

.bookmark-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

/* Make panel close button always clearly visible */
#bookmarkPanelClose {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text-secondary);
  background: var(--color-bg-subtle);
  width: 32px;
  height: 32px;
}
#bookmarkPanelClose:hover {
  color: var(--color-text);
  background: var(--color-bg-muted);
  border-color: var(--color-text-muted);
}

.bookmark-panel__title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

.bookmark-panel__title svg {
  color: var(--color-amber);
}

/* Panel Tabs */
.bookmark-panel__tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  flex-shrink: 0;
}

.panel-tab {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.panel-tab:hover {
  color: var(--color-text);
  background: var(--color-bg-subtle);
}

.panel-tab--active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.panel-tab__count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 999px;
  background: var(--color-bg-muted);
  color: var(--color-text-muted);
  font-size: 10px;
  font-weight: var(--font-bold);
}

.panel-tab--active .panel-tab__count {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

/* Panel Toolbar (search + sort) */
.bookmark-panel__toolbar {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-bottom: 1px solid var(--color-border-subtle);
  flex-shrink: 0;
}

.bookmark-panel__search {
  flex: 1;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.bookmark-panel__search svg {
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.bookmark-search-input {
  flex: 1;
  border: none;
  background: transparent;
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  outline: none;
}

.bookmark-search-input::placeholder {
  color: var(--color-text-muted);
}

.panel-sort-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg-subtle);
  color: var(--color-text-muted);
  font-family: var(--font-sans);
  font-size: 10px;
  font-weight: var(--font-medium);
  cursor: pointer;
  white-space: nowrap;
  transition: border-color 0.15s, color 0.15s;
}

.panel-sort-btn:hover {
  border-color: var(--color-border-strong);
  color: var(--color-text);
}

/* Bookmark indicator (star on notes tab) */
.bookmark-item__indicator {
  color: var(--color-amber);
  font-size: var(--text-xs);
  margin-left: var(--space-1);
}

/* Sender group header */
.bookmark-group-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  margin-top: var(--space-2);
  border-bottom: 1px solid var(--color-border-subtle);
}

.bookmark-group-avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-primary);
  color: white;
  font-size: 9px;
  font-weight: var(--font-bold);
}

.bookmark-group-name {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

.bookmark-panel__list {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-2);
}

.bookmark-empty {
  text-align: center;
  padding: var(--space-10) var(--space-4);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.bookmark-item {
  position: relative;
  padding: var(--space-3);
  padding-right: calc(var(--space-3) + 28px);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 0.15s;
  border: 1px solid transparent;
}

.bookmark-item:hover {
  background: var(--color-bg-subtle);
  border-color: var(--color-border);
}

.bookmark-item__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-1);
}

.bookmark-item__sender {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

.bookmark-item__date {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.bookmark-item__text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.4;
}

.bookmark-item__note {
  display: flex;
  align-items: flex-start;
  gap: 4px;
  margin-top: var(--space-1);
  padding: 3px 6px;
  background: var(--color-purple-light);
  border-left: 2px solid var(--color-purple);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: var(--text-xs);
  color: var(--color-purple);
  line-height: 1.3;
}

.bookmark-item__note svg {
  flex-shrink: 0;
  margin-top: 1px;
}

.bookmark-item__remove {
  position: absolute;
  top: 50%;
  right: var(--space-2);
  transform: translateY(-50%);
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  background: var(--color-bg-subtle);
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  opacity: 0.7;
  transition: opacity 0.15s, color 0.15s, background 0.15s, border-color 0.15s;
}

.bookmark-item:hover .bookmark-item__remove {
  opacity: 1;
}

.bookmark-item__remove:hover {
  color: var(--color-red);
  background: var(--color-red-light, #fef2f2);
  border-color: var(--color-red);
}

/* === BOOKMARK COUNT BADGE === */
.bookmark-count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  border-radius: 999px;
  background: var(--color-amber);
  color: white;
  font-size: 10px;
  font-weight: var(--font-bold);
  margin-left: 2px;
}

/* === NOTE MODAL === */
.note-message-context {
  background: var(--color-bg-subtle);
  border-radius: var(--radius);
  padding: var(--space-3);
  margin-bottom: var(--space-3);
  border: 1px solid var(--color-border-subtle);
}

.note-message-sender {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-weight: var(--font-medium);
  margin-bottom: var(--space-1);
}

.note-message-preview {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.4;
}

.form-textarea {
  width: 100%;
  min-height: 100px;
  padding: var(--space-3);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  line-height: 1.5;
  resize: vertical;
  transition: border-color 0.2s;
}

.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 2px var(--color-primary-light);
}

/* === MESSAGE HIGHLIGHT (jump-to animation) === */
@keyframes highlightPulse {
  0%   { box-shadow: 0 0 0 0 var(--color-primary-glow); }
  50%  { box-shadow: 0 0 0 6px var(--color-primary-glow); }
  100% { box-shadow: 0 0 0 0 transparent; }
}

.msg-highlight {
  animation: highlightPulse 1s ease 2;
  border-radius: var(--radius);
}

/* === PRINT: HIDE M4 UI === */
/* ============================================================================
   CROSS-CHAT SEARCH
   ============================================================================ */
.cross-search-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-bg-subtle);
  color: var(--color-text-muted);
  font-family: var(--font-sans);
  font-size: 11px;
  font-weight: var(--font-medium);
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.15s;
  flex-shrink: 0;
}

.cross-search-toggle:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.cross-search-toggle--active {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

.cross-search-results {
  padding: var(--space-4) var(--space-6);
  overflow-y: auto;
  max-height: calc(100vh - 280px);
}

.cross-search__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.cross-search__header h3 {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text);
}

.cross-search__count {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.cross-search__empty {
  text-align: center;
  padding: var(--space-8);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.cross-search__hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  padding: var(--space-2) var(--space-3);
  background: var(--color-bg-glass);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
}

.cross-search__group {
  margin-bottom: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.cross-search__group-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
  background: var(--color-bg-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

.cross-search__chat-name {
  font-weight: var(--font-semibold);
  font-size: var(--text-sm);
  color: var(--color-primary);
}

.cross-search__match-count {
  font-size: 10px;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-weight: var(--font-bold);
}

.cross-search__item,
.cross-search__row {
  cursor: pointer;
  transition: background 0.1s;
}

.cross-search__row:hover { background: var(--color-bg-subtle); }
.cross-search__row:last-child td { border-bottom: none; }

.cross-search__table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.cross-search__table thead th {
  padding: 6px 10px;
  text-align: left;
  font-size: 10px;
  font-weight: var(--font-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: var(--color-bg-glass);
  border-bottom: 1px solid var(--color-border);
}

.cross-search__table td {
  padding: 8px 10px;
  border-bottom: 1px solid var(--color-border-subtle);
  vertical-align: top;
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  line-height: 1.4;
}

.cs-col-num { width: 36px; color: var(--color-text-muted); text-align: center; }
.cs-col-date { width: 100px; white-space: nowrap; }
.cs-time { font-size: 10px; color: var(--color-text-muted); }
.cs-col-sender { width: 140px; }
.cs-sender-name { font-weight: var(--font-semibold); color: var(--color-text); }
.cs-col-msg { max-width: 0; width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cs-msg-text { color: var(--color-text-secondary); }
.cs-col-actions { width: 60px; text-align: right; white-space: nowrap; }

.cross-search__item-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2px;
}

.cross-search__item-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.cross-search__bm-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  color: var(--color-border);
  padding: 0 2px;
  line-height: 1;
  transition: color 0.15s, transform 0.15s;
}

.cross-search__bm-btn:hover {
  color: #f59e0b;
  transform: scale(1.2);
}

.cross-search__bm-btn--active {
  color: #f59e0b;
}

.cross-search__sender {
  font-weight: var(--font-semibold);
  font-size: var(--text-sm);
  color: var(--color-text);
}

.cross-search__date {
  font-size: 10px;
  color: var(--color-text-muted);
}

.cross-search__text {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: 1.4;
}

/* ============================================================================
   CASES SCREEN
   ============================================================================ */
.cases-container {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-4);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.cases-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) 0;
  margin-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.cases-header__left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.cases-header__right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.cases-toolbar {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  flex-wrap: wrap;
}

.cases-list {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.cases-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-8) var(--space-4);
  color: var(--color-text-muted);
  gap: var(--space-2);
}

.cases-empty svg {
  color: var(--color-border-strong);
  margin-bottom: var(--space-2);
}

.cases-empty h3 {
  color: var(--color-text);
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  margin: 0;
}

.cases-empty p {
  max-width: 400px;
  font-size: var(--text-sm);
  line-height: 1.5;
  margin: 0;
}

/* Case Card */
.case-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.case-card:hover {
  border-color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.case-card__header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}

.case-card__icon {
  color: var(--color-primary);
  flex-shrink: 0;
}

.case-card__title {
  flex: 1;
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.case-card__actions {
  display: flex;
  gap: var(--space-1);
  opacity: 0;
  transition: opacity 0.15s;
}

.case-card:hover .case-card__actions {
  opacity: 1;
}

.case-card__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: none;
  border-radius: var(--radius);
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.case-card__btn:hover {
  background: var(--color-bg-muted);
  color: var(--color-text);
}

.case-card__btn--danger:hover {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

.case-card__meta {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-2);
  padding-left: 36px;
}

.case-card__sep {
  color: var(--color-border-strong);
}

.case-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-left: 36px;
}

.case-card__modified {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.case-card__open {
  font-size: var(--text-xs) !important;
}

.case-rename-input {
  width: 100%;
  border: 1px solid var(--color-primary);
  border-radius: var(--radius);
  padding: 2px var(--space-2);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  background: var(--color-bg);
  outline: none;
}

/* Data Tools (backup/restore/storage) */
.cases-data-tools {
  margin-top: var(--space-4);
  padding: var(--space-4);
  border-top: 1px solid var(--color-border);
}
.cases-data-tools__row {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.cases-data-tools__storage {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}
.cases-data-tools__storage svg {
  opacity: 0.6;
}
.cases-data-tools__storage--warning {
  color: var(--color-orange);
}
.cases-data-tools__storage--warning svg {
  opacity: 1;
}
.storage-bar {
  width: 100%;
  height: 4px;
  background: var(--color-bg-muted);
  border-radius: 2px;
  margin-top: 4px;
  overflow: hidden;
}
.storage-bar__fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 2px;
  transition: width 0.3s ease;
}

/* Workspace Indicator (in viewer header) */
.workspace-indicator {
  gap: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-primary);
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  cursor: pointer;
  max-width: 180px;
  overflow: hidden;
}

.workspace-indicator span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.workspace-indicator:hover {
  background: rgba(34, 197, 94, 0.15);
}

/* Close button always last in actions */
.viewer-header__close {
  margin-left: auto;
  flex-shrink: 0;
}

/* Cases Banner (Upload Screen) */
.cases-banner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-4) var(--space-5);
  background: linear-gradient(135deg, var(--color-primary-light), rgba(34, 197, 94, 0.08));
  border: 1px solid var(--color-primary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
}

.cases-banner__icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: rgba(34, 197, 94, 0.15);
  color: var(--color-primary);
}

.cases-banner__content {
  flex: 1;
  min-width: 0;
}

.cases-banner__title {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin: 0 0 var(--space-1);
}

.cases-banner__text {
  font-size: var(--text-sm);
  color: var(--color-text);
  margin: 0;
  line-height: 1.4;
  opacity: 0.8;
}

/* Case Empty State Overlay (in viewer) */
.case-empty-overlay {
  padding: var(--space-4) var(--space-6);
}

.case-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-8) var(--space-4);
  min-height: 400px;
  color: var(--color-text-muted);
  gap: var(--space-3);
}

.case-empty-state__icon {
  color: var(--color-primary);
  opacity: 0.5;
  margin-bottom: var(--space-2);
}

.case-empty-state h3 {
  color: var(--color-text);
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  margin: 0;
}

.case-empty-state p {
  font-size: var(--text-sm);
  max-width: 380px;
  margin: 0;
  line-height: 1.5;
}

@media (max-width: 640px) {
  .cases-banner {
    flex-direction: column;
    text-align: center;
    padding: var(--space-3);
  }

  .cases-banner .btn {
    width: 100%;
    justify-content: center;
  }

  .cases-container {
    padding: var(--space-3);
  }

  .cases-toolbar {
    flex-direction: column;
  }

  .cases-toolbar .btn {
    width: 100%;
    justify-content: center;
  }

  .case-card__actions {
    opacity: 1;
  }

  .case-card__meta {
    padding-left: 0;
    flex-wrap: wrap;
  }

  .case-card__footer {
    padding-left: 0;
  }
}

/* Export Options Modal */
.export-options {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin: var(--space-3) 0;
  width: 100%;
}

.export-option {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg);
  cursor: pointer;
  transition: all 0.15s;
  text-align: left;
  width: 100%;
}

.export-option:hover {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

.export-option--evidence {
  border-color: #fde68a;
  background: #fffbeb;
}

.export-option--evidence:hover {
  border-color: #f59e0b;
  background: #fef3c7;
}

.export-option__icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-bg-subtle);
  color: var(--color-primary);
}

.export-option__text {
  flex: 1;
  min-width: 0;
}

.export-option__text strong {
  display: block;
  font-size: var(--text-sm);
  color: var(--color-text);
  margin-bottom: 2px;
}

.export-option__text span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

@media print {
  .bookmark-panel,
  .msg-actions,
  .bookmark-count-badge,
  .tab-bar {
    display: none !important;
  }
}

/* === MOBILE: ALWAYS SHOW MSG ACTIONS === */
@media (max-width: 640px) {
  .message .msg-actions,
  .timeline__card .msg-actions {
    opacity: 1;
  }

  .bookmark-panel {
    width: 100%;
    right: -100%;
  }

  .bookmark-panel--open {
    right: 0;
  }
}

/* ============================================================================
   MOBILE OPTIMIZATION — iPhone / Small Screen (≤430px)
   ============================================================================ */
@media (max-width: 430px) {

  /* ── CRITICAL: Prevent iOS Safari auto-zoom on input focus ──
     iOS zooms when font-size < 16px. Every interactive input must be 16px.
     touch-action: manipulation also removes the 300ms tap delay.         ── */
  input, select, textarea,
  .form-input, .form-select, .form-select--sm,
  .form-input--license, .bookmark-search-input,
  #gateKeyInput, #licenseKeyInput, #caseNameInput,
  #pageSizeSelect, #senderFilter, #typeFilter {
    font-size: 16px !important;
    touch-action: manipulation;
  }

  /* ── Gate & license inputs: beat the inline .gate-input-row .form-input--license rule ── */
  .gate-input-row .form-input--license,
  .gate-input-row #gateKeyInput,
  .license-input-group .form-input--license,
  .license-input-group #licenseKeyInput {
    font-size: 16px !important;
  }

  /* ── Search bar: uses CSS transform to visually appear smaller     ──
     Keeping font-size at 16px (iOS anti-zoom requirement) but scaling
     the element to 0.8125 makes it look like 13px to the eye, without
     triggering Safari's auto-zoom on focus.
     width compensation: 100% / 0.8125 ≈ 123.1% fills the container. ── */
  .toolbar__search {
    overflow: visible;
  }
  .search-input {
    font-size: 16px !important;
    transform: scale(0.8125);
    transform-origin: left center;
    width: 123.1% !important;
    padding: var(--space-2) var(--space-3) var(--space-2) 36px !important;
  }
  /* Shift the search icon to match scaled input position */
  .search-icon {
    left: 10px;
  }

  /* ── Pagination select: must also be 16px, visually scale down ── */
  .pagination__pages select,
  #pageSizeSelect {
    font-size: 16px !important;
    transform: scale(0.75);
    transform-origin: right center;
    padding: 2px 6px !important;
  }

  /* ── Confirm modal: must not overflow on small screens ── */
  .confirm-modal__card {
    max-width: calc(100vw - 32px);
    padding: var(--space-4);
    margin: var(--space-4);
  }
  .confirm-modal {
    padding: var(--space-4);
    align-items: flex-end;
  }

  /* ── Toast: TOP position on mobile — avoids Safari nav bar entirely ──
     Bottom toasts are unreliable on iOS: Safari's nav bar height varies,
     safe-area-inset-bottom doesn't cover it, and transitions cause collisions.
     Top toasts (used by Stripe, Linear, Notion on mobile) are always safe. ── */
  .toast {
    bottom: auto !important;
    top: calc(-80px);
    transition: top 0.35s var(--ease-out), opacity 0.35s var(--ease-out);
    opacity: 0;
  }
  .toast--visible {
    bottom: auto !important;
    top: calc(env(safe-area-inset-top, 0px) + 16px);
    opacity: 1;
  }

  /* ── Add Chat button: icon only on mobile ── */
  .tab-bar__add span { display: none; }

  /* ── Make viewer fill full screen with no wasted space ── */
  .screen--viewer {
    height: 100dvh;
  }

  /* ── Show the mobile ⋯ menu button ── */
  .mobile-menu-btn { display: flex; }

  /* ── Tighter viewer header padding ── */
  .viewer-header {
    padding: var(--space-2) var(--space-3);
    gap: var(--space-2);
  }

  /* ── Hide the full desktop actions row — saves ~44px ── */
  .viewer-header__actions { display: none !important; }

  /* ── Hide stats bar entirely — saves ~70px. Count is already in header tagline ── */
  .stats-bar { display: none !important; }

  /* ── Compact toolbar: single row, no label text on view switcher ── */
  .toolbar {
    padding: var(--space-2) var(--space-3);
    gap: var(--space-2);
    margin-bottom: 0;
    flex-wrap: nowrap;
  }
  .toolbar__search {
    flex: 1;
    max-width: none;
    order: 1;
  }
  .toolbar__actions {
    order: 2;
    gap: var(--space-2);
    flex-shrink: 0;
    width: auto;
  }
  /* Hide "Filters" text label, just show icon */
  .toolbar #filtersBtn span, .toolbar .cross-search-toggle span { display: none; }
  /* Hide view switcher text labels */
  .view-btn span { display: none; }
  .view-btn { padding: 5px 7px; }

  /* ── content-panel: must fill all remaining space ── */
  .content-panel {
    flex: 1;
    min-height: 0;
    margin: var(--space-1) var(--space-2) 0;
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }

  /* ── view-content: maximize message area ── */
  .view-content {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  /* ── Conversation: reduce padding, wider messages ── */
  .conversation {
    padding: var(--space-3) var(--space-2);
    gap: var(--space-2);
  }

  .message { max-width: 92%; gap: var(--space-1); }
  .message--outgoing { max-width: 88%; }
  .message__text { font-size: 14px; line-height: 1.5; }
  .message__avatar { width: 24px; height: 24px; font-size: 8px; flex-shrink: 0; }
  .message__bubble { padding: var(--space-2) var(--space-3); }
  .message__sender { font-size: 11px; }
  .message__time { font-size: 10px; }
  .conversation__date { margin: var(--space-3) 0; }
  .conversation__date-badge { font-size: 10px; padding: 2px 10px; }

  /* ── Pagination: compact ── */
  .pagination {
    padding: var(--space-2) var(--space-3);
    flex-wrap: wrap;
    gap: var(--space-2);
    justify-content: center;
  }
  .pagination__info { width: 100%; text-align: center; font-size: 11px; }
  .pagination__controls { gap: var(--space-1); }
  /* pagination select handled above with scale() trick */

  /* ── Table card view: tighter ── */
  .data-table tbody tr { padding: var(--space-2) var(--space-3); }

  /* ── Footer: hidden — not enough space and redundant on mobile ── */
  .viewer-footer { display: none !important; }
}