/* PromptForge – Global Styles v5 (CSS Variables + Mobile-First) */

/* ===== CSS CUSTOM PROPERTIES — DARK (default) ===== */
:root {
  /* Core palette */
  --bg-base:        #0F0F14;
  --bg-surface:     #1A1A24;
  --bg-elevated:    #15151E;
  --bg-overlay:     #12121A;
  --bg-hover:       rgba(255,255,255,0.04);
  --bg-active:      rgba(124,58,237,0.10);

  /* Text */
  --text-primary:   #E4E4ED;
  --text-secondary: #C4C4D4;
  --text-muted:     #8888A0;
  --text-faint:     #555570;

  /* Borders */
  --border-subtle:  #2A2A3A;
  --border-muted:   #1F1F2E;
  --border-strong:  #3A3A4A;

  /* Primary accent */
  --accent:         #7c3aed;
  --accent-hover:   #6d28d9;
  --accent-light:   #a78bfa;
  --accent-faint:   rgba(124,58,237,0.12);

  /* Sidebar */
  --sidebar-bg:     #0F0F14;
  --sidebar-border: #2A2A3A;
  --sidebar-header: #15151E;

  /* Header */
  --header-bg:      rgba(26,26,36,0.92);
  --header-border:  #2A2A3A;
  --mobile-header-bg: #0F0F14;

  /* Cards */
  --card-bg:        #1A1A24;
  --card-border:    #2A2A3A;
  --card-bg-alt:    #15151E;

  /* Inputs */
  --input-bg:       #0F0F14;
  --input-border:   #2A2A3A;
  --input-text:     #E4E4ED;
  --input-placeholder: #555570;

  /* Scrollbar */
  --scrollbar-track:  #1A1A24;
  --scrollbar-thumb:  #2A2A3A;
  --scrollbar-hover:  #3A3A4A;

  /* Tooltip / Menu */
  --tooltip-bg:    #2A2A3A;
  --tooltip-text:  #E4E4ED;
  --tooltip-border: #3A3A4A;
  --menu-bg:       #1A1A24;
  --menu-border:   #2A2A3A;

  /* Shadows */
  --shadow-sm:   0 1px 3px rgba(0,0,0,0.5);
  --shadow-md:   0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg:   0 8px 32px rgba(0,0,0,0.6);
  --shadow-xl:   0 16px 48px rgba(0,0,0,0.7);

  /* Structural */
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-top:    env(safe-area-inset-top, 0px);
  --mobile-header-height: 56px;

  /* Skeleton */
  --skeleton-from: #1A1A24;
  --skeleton-to:   #2A2A3A;

  /* Bottom sheet */
  --sheet-bg:     #1A1A24;
  --sheet-border: #2A2A3A;
  --sheet-handle: #3A3A4A;

  /* Activity table */
  --table-row-bg:    #1A1A24;
  --table-row-border: #2A2A3A;
  --table-label-color: #8888A0;

  /* Analytics */
  --analytics-muted: #8888A0;
}

/* ===== LIGHT MODE OVERRIDES ===== */
html.light-mode {
  --bg-base:        #f0f2f5;
  --bg-surface:     #ffffff;
  --bg-elevated:    #f9fafb;
  --bg-overlay:     #f3f4f6;
  --bg-hover:       rgba(0,0,0,0.04);
  --bg-active:      rgba(124,58,237,0.06);

  --text-primary:   #111827;
  --text-secondary: #374151;
  --text-muted:     #6b7280;
  --text-faint:     #9ca3af;

  --border-subtle:  #e5e7eb;
  --border-muted:   #f3f4f6;
  --border-strong:  #d1d5db;

  --accent:         #7c3aed;
  --accent-hover:   #6d28d9;
  --accent-light:   #7c3aed;
  --accent-faint:   rgba(124,58,237,0.08);

  --sidebar-bg:     #ffffff;
  --sidebar-border: #e5e7eb;
  --sidebar-header: #f9fafb;

  --header-bg:      rgba(255,255,255,0.95);
  --header-border:  #e5e7eb;
  --mobile-header-bg: #ffffff;

  --card-bg:        #ffffff;
  --card-border:    #e5e7eb;
  --card-bg-alt:    #f9fafb;

  --input-bg:       #ffffff;
  --input-border:   #d1d5db;
  --input-text:     #111827;
  --input-placeholder: #9ca3af;

  --scrollbar-track:  #e5e7eb;
  --scrollbar-thumb:  #9ca3af;
  --scrollbar-hover:  #6b7280;

  --tooltip-bg:    #1f2937;
  --tooltip-text:  #f9fafb;
  --tooltip-border: #374151;
  --menu-bg:       #ffffff;
  --menu-border:   #e5e7eb;

  --shadow-sm:   0 1px 3px rgba(0,0,0,0.06);
  --shadow-md:   0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg:   0 8px 32px rgba(0,0,0,0.10);
  --shadow-xl:   0 16px 48px rgba(0,0,0,0.12);

  --skeleton-from: #e5e7eb;
  --skeleton-to:   #f3f4f6;

  --sheet-bg:     #ffffff;
  --sheet-border: #e5e7eb;
  --sheet-handle: #d1d5db;

  --table-row-bg:     #ffffff;
  --table-row-border: #e5e7eb;
  --table-label-color: #6b7280;

  --analytics-muted: #6b7280;
}

/* ===== TRANSITION ON THEME CHANGE ===== */
/* Applied after initial load to prevent FOUC */
html.theme-ready *,
html.theme-ready *::before,
html.theme-ready *::after {
  transition:
    background-color 0.25s ease,
    border-color     0.25s ease,
    color            0.25s ease,
    box-shadow       0.25s ease !important;
}
/* Exceptions: keep animations & transforms instant */
html.theme-ready .toast,
html.theme-ready .bottom-sheet,
html.theme-ready #app-sidebar,
html.theme-ready [class*="animate-"],
html.theme-ready [style*="animation"] {
  transition: none !important;
}

/* ===== BASE ===== */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  margin: 0;
  padding: 0;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

/* ===== SCROLLBARS ===== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--scrollbar-track); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--scrollbar-hover); }

/* ===== GRADIENT TEXT ===== */
.gradient-text {
  background: linear-gradient(135deg, #a78bfa 0%, #818cf8 50%, #f472b6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== PRIMARY BUTTON ===== */
.btn-primary {
  background: linear-gradient(135deg, #7c3aed 0%, #6366f1 100%);
  transition: opacity 0.2s, transform 0.15s, box-shadow 0.2s;
  cursor: pointer;
  border: none;
  color: #fff;
}
.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); box-shadow: 0 4px 20px rgba(124,58,237,0.45); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; box-shadow: none; }

/* ===== DESTRUCTIVE BUTTON ===== */
.btn-destructive {
  background: rgba(220,38,38,0.12);
  border: 1px solid rgba(220,38,38,0.3);
  color: #f87171;
  transition: background 0.2s, color 0.2s;
}
.btn-destructive:hover { background: rgba(220,38,38,0.2); color: #fca5a5; }
html.light-mode .btn-destructive {
  background: rgba(220,38,38,0.06);
  border-color: rgba(220,38,38,0.2);
  color: #dc2626;
}
html.light-mode .btn-destructive:hover {
  background: rgba(220,38,38,0.12);
  color: #b91c1c;
}

/* ===== CARDS ===== */
.card-hover {
  transition: border-color 0.2s, transform 0.2s cubic-bezier(0.34,1.56,0.64,1), box-shadow 0.2s;
}
.card-hover:hover {
  border-color: var(--border-strong) !important;
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* ===== FOCUS RING ===== */
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ===== TOAST (top-right slide) ===== */
.toast { animation: slideInRight 0.35s cubic-bezier(0.22,1,0.36,1) forwards; }
@keyframes slideInRight {
  from { transform: translateX(120%); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}
.toast-exit { animation: slideOutRight 0.25s ease-in forwards; }
@keyframes slideOutRight {
  to { transform: translateX(120%); opacity: 0; }
}
#toast-container {
  position: fixed;
  top: 1.25rem;
  right: 1.25rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  pointer-events: none;
}
@media (max-width: 639px) {
  #toast-container {
    top: calc(var(--mobile-header-height) + 0.75rem);
    right: 0.75rem;
    left: 0.75rem;
  }
  .toast { max-width: 100%; min-width: 0; }
}

/* ===== SIDEBAR ===== */
#app-sidebar {
  background: var(--sidebar-bg) !important;
  border-right-color: var(--sidebar-border) !important;
  transition: width 200ms ease-in-out;
  overflow: hidden;
}
#main-content-area {
  background: var(--bg-base) !important;
  transition: margin-left 200ms ease-in-out;
}

/* Mobile: sidebar is a slide-over drawer */
@media (max-width: 639px) {
  #app-sidebar {
    width: 280px !important;
    transform: translateX(-100%);
    transition: transform 250ms ease-in-out !important;
    z-index: 60;
  }
  #app-sidebar.mobile-open {
    transform: translateX(0);
  }
  #main-content-area {
    margin-left: 0 !important;
    padding-top: var(--mobile-header-height) !important;
  }
  #mobile-sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    z-index: 59;
    backdrop-filter: blur(2px);
    -webkit-backdrop-filter: blur(2px);
  }
  #mobile-sidebar-overlay.visible { display: block; }
}

/* Hide collapse button on mobile */
@media (max-width: 639px) {
  #sidebar-collapse-btn { display: none !important; }
  #mobile-header { display: flex !important; }
  #desktop-header { display: none !important; }
}
@media (min-width: 640px) {
  #mobile-header { display: none !important; }
  #desktop-header { display: flex !important; }
}

.sidebar-item {
  transition: background-color 0.15s, color 0.15s;
  border-left: 3px solid transparent;
  padding-left: calc(1rem - 3px);
  color: var(--text-muted);
}
.sidebar-item.active {
  background: linear-gradient(90deg, rgba(124,58,237,0.15) 0%, rgba(124,58,237,0.05) 100%);
  border-left-color: var(--accent);
  color: var(--accent-light) !important;
}
.sidebar-item:not(.active):hover {
  background-color: var(--bg-hover);
  color: var(--text-secondary);
}
.sidebar-item:active { background-color: var(--bg-active); }
.sidebar-label { transition: opacity 150ms ease-in-out; }
.sidebar-tooltip {
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
  background: var(--tooltip-bg) !important;
  color: var(--tooltip-text) !important;
  border-color: var(--tooltip-border) !important;
}

/* Sidebar internal elements */
.sidebar-section-border {
  border-color: var(--sidebar-border);
}

/* ===== MOBILE HEADER ===== */
#mobile-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--mobile-header-height);
  background: var(--mobile-header-bg);
  border-bottom: 1px solid var(--border-subtle);
  z-index: 50;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
  gap: 0.75rem;
}

/* ===== DESKTOP HEADER ===== */
#desktop-header {
  background: var(--header-bg);
  border-bottom-color: var(--header-border) !important;
}

/* ===== MOBILE FAB ===== */
.mobile-fab {
  position: fixed;
  bottom: calc(1.5rem + var(--safe-bottom));
  right: 1.5rem;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #7c3aed 0%, #6366f1 100%);
  color: white;
  font-size: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(124,58,237,0.5);
  cursor: pointer;
  border: none;
  z-index: 40;
  transition: transform 0.2s, box-shadow 0.2s;
}
.mobile-fab:active { transform: scale(0.92); }
.mobile-fab:hover { box-shadow: 0 6px 28px rgba(124,58,237,0.65); transform: translateY(-2px); }
.mobile-fab { display: none; }
@media (max-width: 639px) { .mobile-fab { display: flex; } }

/* ===== MOBILE BOTTOM SHEET ===== */
.bottom-sheet-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 70;
  display: none;
}
.bottom-sheet-overlay.visible { display: block; }
.bottom-sheet {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--sheet-bg);
  border-top: 1px solid var(--sheet-border);
  border-radius: 1.25rem 1.25rem 0 0;
  z-index: 71;
  transform: translateY(100%);
  transition: transform 280ms cubic-bezier(0.32, 0.72, 0, 1);
  max-height: 85vh;
  overflow-y: auto;
  padding-bottom: calc(1rem + var(--safe-bottom));
}
.bottom-sheet.open { transform: translateY(0); }
.bottom-sheet-handle {
  width: 40px;
  height: 4px;
  background: var(--sheet-handle);
  border-radius: 2px;
  margin: 0.75rem auto 1rem;
}

/* ===== MOBILE AI TOOLS STICKY BUTTON ===== */
.ai-tools-trigger { display: none; }
@media (max-width: 639px) {
  .ai-tools-trigger {
    display: flex;
    position: sticky;
    bottom: 1rem;
    width: 100%;
    background: linear-gradient(135deg, #7c3aed 0%, #6366f1 100%);
    color: white;
    border: none;
    border-radius: 0.75rem;
    padding: 0.875rem 1rem;
    font-size: 0.9rem;
    font-weight: 600;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(124,58,237,0.4);
    z-index: 10;
    margin-top: 1rem;
  }
}

/* ===== TYPING CURSOR ===== */
.typing-cursor::after { content: '|'; animation: blink 0.7s infinite; }
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

/* ===== PROMPT CONTENT ===== */
.prompt-content { line-height: 1.7; }

/* ===== TOGGLE SWITCH ===== */
.toggle-track { transition: background-color 0.2s; cursor: pointer; }
.toggle-thumb { transition: transform 0.2s; }

/* ===== LINE CLAMP ===== */
.line-clamp-2 { display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.line-clamp-3 { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* ===== DRAG & DROP ===== */
.drag-over { border-color: #7c3aed !important; box-shadow: 0 0 0 2px rgba(124,58,237,0.3); transform: scale(1.01); }
[draggable="true"] { cursor: grab; }
[draggable="true"]:active { cursor: grabbing; }
.drag-handle { cursor: grab; }
.drag-handle:active { cursor: grabbing; }

/* ===== SYNTAX HIGHLIGHT OVERLAY ===== */
#syntax-overlay { pointer-events: none; }
#syntax-overlay mark { background: none; }

/* ===== COMMAND PALETTE ===== */
.palette-item { user-select: none; }
.palette-bg {
  background: var(--card-bg) !important;
  border-color: var(--card-border) !important;
}
.palette-item-bg {
  background: var(--bg-elevated) !important;
}
.palette-item-bg:hover {
  background: var(--bg-hover) !important;
}

/* ===== DIFF VIEW ===== */
.diff-add { background: rgba(16, 185, 129, 0.12); }
.diff-del { background: rgba(239, 68, 68, 0.12); }

/* ===== SKELETON / SHIMMER ===== */
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}
.skeleton {
  background: linear-gradient(90deg, var(--skeleton-from) 25%, var(--skeleton-to) 50%, var(--skeleton-from) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 0.5rem;
}

/* ===== PAGE FADE-IN ===== */
@keyframes pageIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.page-enter { animation: pageIn 0.2s ease-out forwards; }

/* ===== FADE IN ===== */
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.fade-in { animation: fadeIn 0.3s ease-out forwards; }

/* ===== MODAL SCALE IN ===== */
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(8px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-enter { animation: modalIn 0.2s cubic-bezier(0.34,1.56,0.64,1) forwards; }

/* ===== MODAL BACKGROUNDS ===== */
.modal-bg {
  background: var(--card-bg) !important;
  border-color: var(--card-border) !important;
}

/* ===== ONBOARDING ===== */
[data-ob-val].selected { border-color: #7c3aed; background-color: rgba(124,58,237,0.15); }

/* ===== LANDING HERO GRADIENT ===== */
@keyframes gradientShift {
  0%   { background-position: 0%   50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0%   50%; }
}
.hero-gradient {
  background: linear-gradient(135deg, #0F0F14 0%, #1a0a2e 25%, #0f0f2e 50%, #14001f 75%, #0F0F14 100%);
  background-size: 400% 400%;
  animation: gradientShift 12s ease infinite;
}
html.light-mode .hero-gradient {
  background: linear-gradient(135deg, #f0f2f5 0%, #ede9fe 30%, #eef2ff 60%, #f0f2f5 100%);
  background-size: 400% 400%;
}

/* ===== DEMO BOX GLOW ===== */
.demo-box-focus:focus-within {
  box-shadow: 0 0 0 2px rgba(124,58,237,0.5), 0 0 30px rgba(124,58,237,0.15);
  border-color: #7c3aed !important;
  transition: box-shadow 0.3s, border-color 0.3s;
}

/* ===== GLASSMORPHISM ===== */
.glass-card {
  background: rgba(26, 26, 36, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.07);
  transition: transform 0.2s, box-shadow 0.2s;
}
.glass-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.5), 0 0 0 1px rgba(167,139,250,0.1);
}
html.light-mode .glass-card {
  background: rgba(255,255,255,0.75);
  border-color: rgba(0,0,0,0.07);
}

/* ===== COUNTER ===== */
.counter-val { font-variant-numeric: tabular-nums; }

/* ===== COPY CHECKMARK ===== */
.copy-btn-success { color: #34d399 !important; }
@keyframes checkPop {
  0%   { transform: scale(0.6); opacity: 0; }
  60%  { transform: scale(1.2); }
  100% { transform: scale(1);   opacity: 1; }
}
.copy-btn-success i { animation: checkPop 0.25s ease-out forwards; }

/* ===== CATEGORY BADGE COLORS ===== */
.cat-marketing  { background: rgba(59,130,246,0.12); color: #60a5fa; border: 1px solid rgba(59,130,246,0.25); }
.cat-development{ background: rgba(16,185,129,0.12); color: #34d399; border: 1px solid rgba(16,185,129,0.25); }
.cat-writing    { background: rgba(249,115,22,0.12); color: #fb923c; border: 1px solid rgba(249,115,22,0.25); }
.cat-sales      { background: rgba(239,68,68,0.12);  color: #f87171; border: 1px solid rgba(239,68,68,0.25); }
.cat-design     { background: rgba(236,72,153,0.12); color: #f472b6; border: 1px solid rgba(236,72,153,0.25); }
.cat-education  { background: rgba(234,179,8,0.12);  color: #facc15; border: 1px solid rgba(234,179,8,0.25); }
.cat-business   { background: rgba(99,102,241,0.12); color: #818cf8; border: 1px solid rgba(99,102,241,0.25); }
.cat-creative   { background: rgba(168,85,247,0.12); color: #c084fc; border: 1px solid rgba(168,85,247,0.25); }
.cat-analysis   { background: rgba(251,146,60,0.12); color: #fb923c; border: 1px solid rgba(251,146,60,0.25); }
.cat-other      { background: rgba(107,114,128,0.12);color: #9ca3af; border: 1px solid rgba(107,114,128,0.25);}

html.light-mode .cat-marketing   { background: rgba(59,130,246,0.08);  color: #2563eb; }
html.light-mode .cat-development { background: rgba(16,185,129,0.08);  color: #059669; }
html.light-mode .cat-writing     { background: rgba(249,115,22,0.08);  color: #ea580c; }
html.light-mode .cat-sales       { background: rgba(239,68,68,0.08);   color: #dc2626; }
html.light-mode .cat-design      { background: rgba(236,72,153,0.08);  color: #db2777; }
html.light-mode .cat-education   { background: rgba(234,179,8,0.08);   color: #b45309; }
html.light-mode .cat-business    { background: rgba(99,102,241,0.08);  color: #4f46e5; }
html.light-mode .cat-creative    { background: rgba(168,85,247,0.08);  color: #7c3aed; }
html.light-mode .cat-analysis    { background: rgba(251,146,60,0.08);  color: #c2410c; }
html.light-mode .cat-other       { background: rgba(107,114,128,0.08); color: #4b5563; }

/* ===== STAR RATING ===== */
.star-btn { transition: transform 0.1s, color 0.1s; }
.star-btn:hover { transform: scale(1.25); }

/* ===== TRENDING SCROLL ===== */
.trending-scroll {
  overflow-x: auto;
  cursor: grab;
  user-select: none;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
}
.trending-scroll:active { cursor: grabbing; }
.trending-scroll::-webkit-scrollbar { height: 4px; }
.trending-scroll::-webkit-scrollbar-track { background: transparent; }
.trending-scroll::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 2px; }

/* ===== SPARKLE BUTTON ===== */
@keyframes sparkle {
  0%,100% { box-shadow: 0 0 0 rgba(124,58,237,0); }
  50%      { box-shadow: 0 0 18px rgba(124,58,237,0.6), 0 0 35px rgba(99,102,241,0.3); }
}
.sparkle-btn { animation: sparkle 2.5s ease-in-out infinite; }

/* ===== ENHANCE / DEMO INPUT GLOW ===== */
#quick-enhance-input:focus,
#demo-input:focus {
  box-shadow: 0 0 0 2px rgba(124,58,237,0.4), 0 0 20px rgba(124,58,237,0.1);
}

/* ===== EMPTY STATE ===== */
.empty-state { animation: fadeIn 0.4s ease-out; }

/* ===== NOTIFICATION BADGE ===== */
.notif-dot {
  width: 8px; height: 8px;
  background: #ef4444;
  border-radius: 50%;
  position: absolute; top: 4px; right: 4px;
  animation: pulseDot 2s ease-in-out infinite;
}
@keyframes pulseDot { 0%,100% { transform: scale(1); } 50% { transform: scale(1.3); } }

/* ===== THEME TOGGLE BUTTON ===== */
.theme-toggle-btn {
  width: 2rem; height: 2rem;
  display: flex; align-items: center; justify-content: center;
  border-radius: 0.5rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.theme-toggle-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

/* ===== USER MENU ===== */
#user-menu {
  background: var(--menu-bg) !important;
  border-color: var(--menu-border) !important;
}
#user-menu a,
#user-menu button {
  color: var(--text-secondary) !important;
}
#user-menu a:hover,
#user-menu button:hover {
  background: var(--bg-hover) !important;
}

/* ===== GENERIC BG/TEXT HELPERS using variables ===== */
.bg-theme-base    { background: var(--bg-base); }
.bg-theme-surface { background: var(--bg-surface); }
.bg-theme-elevated{ background: var(--bg-elevated); }
.text-theme-primary   { color: var(--text-primary); }
.text-theme-secondary { color: var(--text-secondary); }
.text-theme-muted     { color: var(--text-muted); }
.border-theme         { border-color: var(--border-subtle); }

/* ===== TAILWIND OVERRIDES FOR LIGHT MODE ===== */
html.light-mode body { background-color: #f0f2f5; color: #111827; }
html.light-mode .bg-gray-950,
html.light-mode .bg-gray-950\/90 { background-color: #f0f2f5 !important; }
html.light-mode .bg-gray-900,
html.light-mode .bg-gray-900\/80,
html.light-mode .bg-gray-900\/50 { background-color: #ffffff !important; }
html.light-mode .bg-gray-800,
html.light-mode .bg-gray-800\/80 { background-color: #f3f4f6 !important; }
html.light-mode .bg-gray-700 { background-color: #e5e7eb !important; }
html.light-mode .bg-gray-600 { background-color: #d1d5db !important; }

html.light-mode .border-gray-800 { border-color: #e5e7eb !important; }
html.light-mode .border-gray-700 { border-color: #d1d5db !important; }
html.light-mode .border-gray-600 { border-color: #9ca3af !important; }

html.light-mode .text-white     { color: #111827 !important; }
html.light-mode .text-gray-100  { color: #1f2937 !important; }
html.light-mode .text-gray-200  { color: #374151 !important; }
html.light-mode .text-gray-300  { color: #4b5563 !important; }
html.light-mode .text-gray-400  { color: #6b7280 !important; }
html.light-mode .text-gray-500  { color: #9ca3af !important; }

html.light-mode .hover\:bg-gray-800:hover { background-color: #f3f4f6 !important; }
html.light-mode .hover\:bg-gray-700:hover { background-color: #e5e7eb !important; }
html.light-mode .hover\:text-white:hover  { color: #111827 !important; }
html.light-mode .hover\:text-gray-200:hover { color: #374151 !important; }

/* ---- Sidebar ---- */
html.light-mode aside.sidebar { background-color: #ffffff !important; border-right-color: #e5e7eb !important; }
html.light-mode .sidebar-item { color: #6b7280 !important; }
html.light-mode .sidebar-item.active { background: linear-gradient(90deg, rgba(124,58,237,0.08) 0%, rgba(124,58,237,0.03) 100%) !important; }
html.light-mode .sidebar-item:not(.active):hover { background-color: #f9fafb !important; color: #111827 !important; }

/* ---- Header ---- */
html.light-mode header { background-color: rgba(255,255,255,0.95) !important; border-bottom-color: #e5e7eb !important; }
html.light-mode #mobile-header { background-color: #ffffff !important; border-bottom-color: #e5e7eb !important; }

/* ---- Inputs ---- */
html.light-mode input,
html.light-mode textarea,
html.light-mode select {
  background-color: #ffffff !important;
  border-color: #d1d5db !important;
  color: #111827 !important;
}
html.light-mode input::placeholder,
html.light-mode textarea::placeholder { color: #9ca3af !important; }
html.light-mode input:focus,
html.light-mode textarea:focus,
html.light-mode select:focus { border-color: #7c3aed !important; }

/* ---- Card hover ---- */
html.light-mode .card-hover:hover {
  border-color: #c4b5fd !important;
  box-shadow: 0 8px 24px rgba(124,58,237,0.08) !important;
}

/* ---- Command palette ---- */
html.light-mode #modal-container .bg-gray-900 { background-color: #ffffff !important; }
html.light-mode #modal-container .border-gray-700 { border-color: #e5e7eb !important; }
html.light-mode #modal-container .bg-gray-800 { background-color: #f3f4f6 !important; }
html.light-mode #modal-container .hover\:bg-gray-800:hover { background-color: #f3f4f6 !important; }

/* ---- KBD ---- */
html.light-mode kbd { background-color: #e5e7eb !important; color: #374151 !important; border-color: #d1d5db !important; }

/* ---- Code ---- */
html.light-mode code,
html.light-mode .font-mono { color: #374151 !important; }
html.light-mode .whitespace-pre-wrap { color: #1f2937 !important; }

/* ---- Accent backgrounds ---- */
html.light-mode .bg-violet-950 { background-color: #ede9fe !important; }
html.light-mode .bg-indigo-950 { background-color: #eef2ff !important; }
html.light-mode .bg-emerald-950 { background-color: #ecfdf5 !important; }
html.light-mode .bg-amber-950  { background-color: #fffbeb !important; }
html.light-mode .bg-red-950    { background-color: #fff1f2 !important; }
html.light-mode .bg-blue-950   { background-color: #eff6ff !important; }
html.light-mode .bg-green-950  { background-color: #f0fdf4 !important; }

/* ---- Accent text ---- */
html.light-mode .text-violet-400  { color: #7c3aed !important; }
html.light-mode .text-indigo-400  { color: #4f46e5 !important; }
html.light-mode .text-emerald-400 { color: #059669 !important; }
html.light-mode .text-amber-400   { color: #d97706 !important; }
html.light-mode .text-red-400     { color: #dc2626 !important; }
html.light-mode .text-blue-400    { color: #2563eb !important; }
html.light-mode .text-cyan-400    { color: #0891b2 !important; }
html.light-mode .text-pink-400    { color: #db2777 !important; }
html.light-mode .text-green-400   { color: #16a34a !important; }
html.light-mode .text-orange-400  { color: #ea580c !important; }

/* ---- Root / page ---- */
html.light-mode #root { background-color: #f0f2f5; min-height: 100vh; }
html.light-mode .min-h-screen { background-color: #f0f2f5 !important; }

/* ---- Landing nav ---- */
html.light-mode nav.sticky { background-color: rgba(255,255,255,0.95) !important; border-bottom-color: #e5e7eb !important; }

/* ---- FAQ ---- */
html.light-mode details { background-color: #ffffff !important; border-color: #e5e7eb !important; }
html.light-mode summary:hover { background-color: #f9fafb !important; }

/* ---- Table ---- */
html.light-mode table thead tr { border-bottom-color: #e5e7eb !important; }
html.light-mode table tbody tr { border-color: #f3f4f6 !important; }

/* ---- Backdrop ---- */
html.light-mode .backdrop-blur-sm { backdrop-filter: blur(4px); }

/* ---- Bottom sheet ---- */
html.light-mode .bottom-sheet {
  background: #ffffff !important;
  border-top-color: #e5e7eb !important;
}

/* ===== MOBILE TYPOGRAPHY SCALING ===== */
@media (max-width: 639px) {
  h1 { font-size: 1.75rem !important; line-height: 1.2; }
  .text-5xl { font-size: 1.75rem !important; }
  .text-7xl { font-size: 2rem !important; }
  .text-4xl { font-size: 1.5rem !important; }
  .text-3xl { font-size: 1.35rem !important; }
  .text-2xl { font-size: 1.2rem !important; }
  .text-xl  { font-size: 1.05rem !important; }
  input, textarea, select { font-size: 16px !important; }
}

/* ===== MOBILE SPACING ===== */
@media (max-width: 639px) {
  .p-6 { padding: 1rem !important; }
  .p-5 { padding: 0.875rem !important; }
  .px-6 { padding-left: 1rem !important; padding-right: 1rem !important; }
  .py-6 { padding-top: 1rem !important; padding-bottom: 1rem !important; }
  .gap-6 { gap: 1rem !important; }
  .space-y-6 > * + * { margin-top: 1rem !important; }
  main.flex-1 { padding: 1rem !important; }
}

/* ===== MOBILE TOUCH TARGETS ===== */
@media (max-width: 639px) {
  button, a, .clickable { min-height: 44px; }
  .sidebar-item { min-height: 48px; display: flex; align-items: center; }
  .badge-btn, .tag-btn { min-height: auto; }
}

/* ===== MODAL MOBILE ===== */
@media (max-width: 639px) {
  #modal-container > div {
    margin: 0.75rem !important;
    max-width: calc(100vw - 1.5rem) !important;
    max-height: 90vh !important;
    overflow-y: auto;
  }
  body.modal-open { overflow: hidden; }
}

/* ===== ANALYTICS MOBILE ===== */
@media (max-width: 639px) {
  .analytics-activity-table thead { display: none; }
  .analytics-activity-table tbody tr {
    display: block;
    border: 1px solid var(--border-subtle);
    border-radius: 0.75rem;
    margin-bottom: 0.75rem;
    padding: 0.75rem;
    background: var(--card-bg);
  }
  .analytics-activity-table tbody td {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.25rem 0;
    border: none;
    font-size: 0.8rem;
  }
  .analytics-activity-table tbody td::before {
    content: attr(data-label);
    color: var(--text-muted);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-right: 0.5rem;
  }
}

/* ===== SETTINGS MOBILE ===== */
@media (max-width: 639px) {
  #settings-tab-bar {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scroll-snap-type: x proximity;
  }
  #settings-tab-bar button {
    flex-shrink: 0;
    min-width: max-content;
    scroll-snap-align: start;
  }
  .settings-form input,
  .settings-form textarea,
  .settings-form select { min-height: 48px; width: 100%; }
  .settings-form button[type="submit"],
  .settings-form .save-btn { width: 100%; min-height: 48px; }
}

/* ===== PREVENT HORIZONTAL OVERFLOW ===== */
* { max-width: 100%; }
img, video, iframe { max-width: 100%; height: auto; }

/* ===== BODY SCROLL LOCK ===== */
body.no-scroll { overflow: hidden !important; }

/* ===== THEME SELECTOR CARDS (Settings > Preferences) ===== */
.theme-card {
  position: relative;
  padding: 1rem;
  border-radius: 0.75rem;
  border: 2px solid var(--border-subtle);
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
  text-align: left;
  background: var(--bg-elevated);
}
.theme-card:hover {
  border-color: var(--border-strong);
}
.theme-card.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}
.theme-card-preview {
  border-radius: 0.5rem;
  overflow: hidden;
  margin-top: 0.75rem;
  height: 56px;
}
/* Dark preview */
.theme-card-preview-dark {
  background: #1A1A24;
  border: 1px solid #2A2A3A;
}
.theme-card-preview-dark .preview-bar {
  background: #2A2A3A;
}
/* Light preview */
.theme-card-preview-light {
  background: #f9fafb;
  border: 1px solid #e5e7eb;
}
.theme-card-preview-light .preview-bar {
  background: #e5e7eb;
}
/* System preview: half/half */
.theme-card-preview-system {
  display: flex;
}
.theme-card-preview-system .preview-half-dark {
  flex: 1;
  background: #1A1A24;
}
.theme-card-preview-system .preview-half-light {
  flex: 1;
  background: #f9fafb;
}