/* ==========================================================================
   Smooth PDF Reader — Design System & Stylesheet
   Faithful to Android App Aesthetics: Modern, Privacy-First, Responsive
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* --------------------------------------------------------------------------
   CSS Variables & Design Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Brand Core (matching screenshots) */
  --brand-navy-950: #050b25;   /* Header & Hero background */
  --brand-navy-900: #0a1438;
  --brand-navy-850: #0f1c4d;
  --brand-navy-800: #142460;

  --brand-blue: #1d6bf3;       /* Primary action blue */
  --brand-blue-hover: #1656c9;
  --brand-cyan: #00d2ff;
  --brand-gradient: linear-gradient(135deg, #1d6bf3 0%, #00b4d8 100%);
  --brand-hero-gradient: linear-gradient(135deg, #1e70ff 0%, #00c6ff 100%);

  /* Android App Quick Action Palette */
  --accent-purple: #6366f1;
  --accent-purple-light: rgba(99, 102, 241, 0.12);
  --accent-green: #10b981;
  --accent-green-light: rgba(16, 185, 129, 0.12);
  --accent-orange: #f59e0b;
  --accent-orange-light: rgba(245, 158, 11, 0.14);
  --accent-blue: #3b82f6;
  --accent-blue-light: rgba(59, 130, 246, 0.12);
  --accent-magenta: #d946ef;
  --accent-magenta-light: rgba(217, 70, 239, 0.12);
  --accent-slate: #64748b;
  --accent-slate-light: rgba(100, 116, 139, 0.12);
  --accent-red: #ef4444;
  --accent-red-dark: #dc2626;
  --accent-red-light: rgba(239, 68, 68, 0.12);
  --accent-teal: #0d9488;
  --accent-teal-light: rgba(13, 148, 136, 0.12);

  /* Light Theme Colors (Default) */
  --bg-page: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-muted: #f1f5f9;
  --bg-subtle: #f8fafc;
  --border-color: #e2e8f0;
  --border-focus: #1d6bf3;

  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-dim: #94a3b8;
  --text-inverse: #ffffff;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(5, 11, 37, 0.07), 0 2px 4px -2px rgba(5, 11, 37, 0.05);
  --shadow-lg: 0 10px 25px -5px rgba(5, 11, 37, 0.08), 0 8px 10px -6px rgba(5, 11, 37, 0.04);
  --shadow-xl: 0 20px 35px -5px rgba(5, 11, 37, 0.12), 0 10px 10px -5px rgba(5, 11, 37, 0.04);
  --shadow-glow: 0 0 25px rgba(29, 107, 243, 0.25);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 350ms cubic-bezier(0.16, 1, 0.3, 1);
}

/* --------------------------------------------------------------------------
   Dark Theme (Matching Android App Dark Charcoal / Deep Navy)
   -------------------------------------------------------------------------- */
[data-theme="dark"] {
  --bg-page: #040817;
  --bg-surface: #0a112c;
  --bg-surface-elevated: #101c45;
  --bg-muted: #13204e;
  --bg-subtle: #070d24;
  --border-color: #1e2c60;
  --border-focus: #3b82f6;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --text-inverse: #050b25;

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.55);
  --shadow-xl: 0 20px 35px -5px rgba(0, 0, 0, 0.65);
  --shadow-glow: 0 0 30px rgba(29, 107, 243, 0.4);

  /* Dark mode settings card charcoal */
  --settings-card-bg: #1e2538;
}

/* --------------------------------------------------------------------------
   Base & Resets
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--bg-page);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  background-color: var(--bg-page);
  transition: background-color var(--transition-normal), color var(--transition-normal);
}

img, svg, canvas {
  display: block;
  max-width: 100%;
}

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

a {
  color: var(--brand-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  text-decoration: underline;
}

/* Accessible focus styling */
:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Screen reader utility */
.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;
}

/* Layout container */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.container-narrow {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* --------------------------------------------------------------------------
   Navigation & Top Bar
   -------------------------------------------------------------------------- */
.site-header {
  background-color: var(--brand-navy-950);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #ffffff;
  text-decoration: none;
}
.brand-link:hover {
  text-decoration: none;
}

.brand-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.35);
  transition: transform var(--transition-fast);
}
.brand-link:hover .brand-icon {
  transform: scale(1.05);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #ffffff;
  line-height: 1.2;
}

.brand-tagline-small {
  font-size: 0.72rem;
  font-weight: 600;
  color: #94a3b8;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-link {
  color: #cbd5e1;
  font-weight: 600;
  font-size: 0.92rem;
  transition: color var(--transition-fast);
  padding: 0.5rem 0.25rem;
  position: relative;
  white-space: nowrap;
}
.nav-link:hover {
  color: #ffffff;
  text-decoration: none;
}
.nav-link.active {
  color: #ffffff;
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--brand-gradient);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.btn-icon {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: #cbd5e1;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--transition-fast);
}
.btn-icon:hover {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.14);
  transform: translateY(-1px);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-weight: 700;
  font-size: 0.92rem;
  color: #ffffff;
  background: var(--brand-gradient);
  border-radius: var(--radius-full);
  box-shadow: 0 4px 14px rgba(29, 107, 243, 0.35);
  transition: all var(--transition-normal);
  text-decoration: none;
  border: none;
}
.btn-primary:hover {
  background: linear-gradient(135deg, #2575fc 0%, #02c0ea 100%);
  box-shadow: 0 6px 20px rgba(29, 107, 243, 0.45);
  transform: translateY(-2px);
  text-decoration: none;
}
.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-weight: 700;
  font-size: 0.92rem;
  color: #ffffff;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  text-decoration: none;
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.25);
  text-decoration: none;
}

/* Navigation Download Now Button */
.btn-nav-download {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.6rem 1.15rem;
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--brand-blue);
  background: rgba(29, 107, 243, 0.08);
  border: 1.5px solid var(--brand-blue);
  border-radius: var(--radius-full);
  box-shadow: 0 2px 8px rgba(29, 107, 243, 0.15);
  transition: all var(--transition-fast);
  text-decoration: none;
  cursor: pointer;
}
.btn-nav-download:hover {
  background: var(--brand-blue);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(29, 107, 243, 0.35);
  text-decoration: none;
}
.btn-nav-download:active {
  transform: translateY(0);
}
[data-theme="dark"] .btn-nav-download {
  color: #38bdf8;
  border-color: #38bdf8;
  background: rgba(56, 189, 248, 0.1);
}
[data-theme="dark"] .btn-nav-download:hover {
  background: #38bdf8;
  color: #050b25;
}
.mobile-nav-download-link {
  color: var(--brand-blue) !important;
  font-weight: 800 !important;
}

.hamburger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  gap: 5px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
}
.hamburger-btn span {
  width: 20px;
  height: 2px;
  background-color: #ffffff;
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* Mobile Nav Drawer */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(5, 11, 37, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 999;
  padding: 1.5rem 1.25rem 2.5rem;
  flex-direction: column;
  transform: translateY(-100%);
  transition: transform var(--transition-smooth);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}
.mobile-nav.open {
  transform: translateY(0);
}
.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  flex-shrink: 0;
}
.mobile-nav-close {
  color: #ffffff;
  font-size: 1.75rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  cursor: pointer;
  transition: background var(--transition-fast);
}
.mobile-nav-close:hover {
  background: rgba(255, 255, 255, 0.2);
}
.mobile-nav-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex-grow: 1;
}
.mobile-nav-links li {
  width: 100%;
}
.mobile-nav-links a {
  font-size: 1.15rem;
  font-weight: 700;
  color: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.95rem 1.25rem;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: all var(--transition-fast);
  text-decoration: none;
}
.mobile-nav-links a:hover,
.mobile-nav-links a:active {
  background: rgba(29, 107, 243, 0.18);
  border-color: rgba(0, 210, 255, 0.4);
  color: #ffffff;
  transform: translateX(4px);
  text-decoration: none;
}

/* --------------------------------------------------------------------------
   Hero Section (Matching Android Dark Navy #050B25 + Blue Scanner Card)
   -------------------------------------------------------------------------- */
.hero-section {
  background-color: var(--brand-navy-950);
  background-image: 
    radial-gradient(circle at 85% 15%, rgba(29, 107, 243, 0.18) 0%, transparent 45%),
    radial-gradient(circle at 15% 85%, rgba(0, 210, 255, 0.12) 0%, transparent 40%);
  color: #ffffff;
  padding: 3.5rem 0 4.5rem;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-greeting {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1.25rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}
.hero-greeting-star {
  color: #facc15; /* Matching yellow star from app screenshot */
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  color: #ffffff;
}
.hero-title .gradient-text {
  background: linear-gradient(135deg, #ffffff 30%, #38bdf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: 1.125rem;
  line-height: 1.6;
  color: #94a3b8;
  margin-bottom: 2rem;
  max-width: 540px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2.25rem;
}

.hero-trust-badges {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}
.trust-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: #cbd5e1;
}
.trust-badge svg {
  color: var(--accent-green);
  flex-shrink: 0;
}

/* App Hero Visual Card (Inspired by Screenshot 2) */
.hero-visual {
  position: relative;
}

.app-scanner-card {
  background: var(--brand-hero-gradient);
  border-radius: var(--radius-xl);
  padding: 2.25rem;
  box-shadow: 0 25px 50px -12px rgba(29, 107, 243, 0.45);
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #ffffff;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 1.5rem;
}

.scanner-card-content h3 {
  font-size: 1.85rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 0.35rem;
  letter-spacing: -0.01em;
}

.scanner-card-content p {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 1.5rem;
  font-weight: 500;
}

.scanner-send-btn {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.25);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}
.scanner-send-btn:hover {
  background: rgba(255, 255, 255, 0.4);
  transform: scale(1.08);
}

.app-doc-preview {
  position: relative;
  width: 140px;
  height: 140px;
  background: var(--accent-red);
  border-radius: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 15px 30px rgba(220, 38, 38, 0.4);
  flex-shrink: 0;
  transition: transform var(--transition-normal);
}
.app-scanner-card:hover .app-doc-preview {
  transform: translateY(-4px) rotate(2deg);
}

.mini-pdf-sheet {
  width: 72px;
  height: 90px;
  background: #ffffff;
  border-radius: 6px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.15);
}
.mini-pdf-sheet::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 18px;
  height: 18px;
  background: #cbd5e1;
  clip-path: polygon(0 0, 0 100%, 100% 100%);
}
.mini-pdf-text {
  font-size: 1.15rem;
  font-weight: 900;
  color: var(--accent-red-dark);
  letter-spacing: 0.5px;
}

/* Subtle scanning laser animation */
.scanner-laser-line {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.9), transparent);
  box-shadow: 0 0 12px #ffffff;
  animation: scanLaser 3.5s ease-in-out infinite;
  pointer-events: none;
}
@keyframes scanLaser {
  0%, 100% { top: 0%; opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  98% { top: 100%; opacity: 0; }
}

/* --------------------------------------------------------------------------
   Quick Actions Section (Faithful to Screenshot 2)
   -------------------------------------------------------------------------- */
.quick-actions-section {
  padding: 3.5rem 0 2rem;
  background-color: var(--bg-page);
}

.section-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.section-title {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

/* Manual Edit Mode toggle matching screenshot 2 */
.mode-toggle-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-muted);
}
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 48px;
  height: 26px;
}
.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}
.toggle-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #cbd5e1;
  transition: .3s;
  border-radius: 34px;
}
.toggle-slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s;
  border-radius: 50%;
  box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}
input:checked + .toggle-slider {
  background-color: #8b5cf6; /* Matching purple switch in app */
}
input:checked + .toggle-slider:before {
  transform: translateX(22px);
}

/* Grid of Actions */
.actions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
}

.action-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1rem;
  transition: all var(--transition-normal);
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  position: relative;
  text-decoration: none;
  color: var(--text-main);
}
.action-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(29, 107, 243, 0.3);
  text-decoration: none;
}

.action-icon-box {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  transition: transform var(--transition-fast);
}
.action-card:hover .action-icon-box {
  transform: scale(1.08);
}

/* Color thematic styles matching screenshot 2 */
.action-card.card-scan .action-icon-box {
  background: var(--accent-purple-light);
  color: var(--accent-purple);
}
.action-card.card-gallery .action-icon-box {
  background: var(--accent-green-light);
  color: var(--accent-green);
}
.action-card.card-mypdfs .action-icon-box {
  background: var(--accent-orange-light);
  color: var(--accent-orange);
}
.action-card.card-share .action-icon-box {
  background: var(--accent-blue-light);
  color: var(--accent-blue);
}
.action-card.card-pdf2img .action-icon-box {
  background: var(--accent-magenta-light);
  color: var(--accent-magenta);
}
.action-card.card-settings .action-icon-box {
  background: var(--accent-slate-light);
  color: var(--accent-slate);
}
.action-card.card-merge .action-icon-box {
  background: var(--accent-teal-light);
  color: var(--accent-teal);
}
.action-card.card-split .action-icon-box {
  background: var(--accent-red-light);
  color: var(--accent-red);
}

.action-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.3;
}
.action-card-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin-top: -0.5rem;
}

/* --------------------------------------------------------------------------
   PDF Tools Studio Workspace (Tabs & Active Tool Panel)
   -------------------------------------------------------------------------- */
.tools-studio-section {
  padding: 2.5rem 0 4.5rem;
}

.studio-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transition: background-color var(--transition-normal), border-color var(--transition-normal);
}

.tools-nav-bar {
  display: flex;
  overflow-x: auto;
  background-color: var(--bg-muted);
  border-bottom: 1px solid var(--border-color);
  scrollbar-width: none;
  -webkit-overflow-scrolling: touch;
}
.tools-nav-bar::-webkit-scrollbar {
  display: none;
}

.tool-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1.15rem 1.5rem;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--text-muted);
  border-bottom: 3px solid transparent;
  white-space: nowrap;
  transition: all var(--transition-fast);
}
.tool-tab-btn:hover {
  color: var(--text-main);
  background: rgba(0, 0, 0, 0.02);
}
.tool-tab-btn.active {
  color: var(--brand-blue);
  border-bottom-color: var(--brand-blue);
  background-color: var(--bg-surface);
}

.tool-panel {
  display: none;
  padding: 2.5rem;
}
.tool-panel.active {
  display: block;
}

.tool-panel-header {
  margin-bottom: 1.75rem;
}
.tool-panel-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 0.35rem;
}
.tool-panel-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Dropzone Component */
.dropzone-container {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 3rem 1.5rem;
  text-align: center;
  background-color: var(--bg-subtle);
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
}
.dropzone-container:hover, .dropzone-container.dragover {
  border-color: var(--brand-blue);
  background-color: rgba(29, 107, 243, 0.04);
  transform: scale(0.998);
}

.dropzone-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 1.25rem;
  color: var(--brand-blue);
  background: rgba(29, 107, 243, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.dropzone-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.dropzone-hint {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}

.file-hidden-input {
  display: none;
}

/* Selected Items Preview Grid */
.selected-items-wrapper {
  margin-top: 2rem;
}

.selected-items-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.items-count-badge {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--brand-blue);
  background: rgba(29, 107, 243, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
}

.image-preview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.image-thumb-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.image-thumb-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.thumb-image-wrapper {
  height: 140px;
  background-color: #f1f5f9;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.thumb-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.thumb-badge-order {
  position: absolute;
  top: 8px;
  left: 8px;
  width: 26px;
  height: 26px;
  background: rgba(5, 11, 37, 0.8);
  backdrop-filter: blur(4px);
  color: #ffffff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

.thumb-info {
  padding: 0.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.thumb-filename {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 0.25rem;
}

.thumb-meta {
  font-size: 0.72rem;
  color: var(--text-muted);
}

.thumb-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-color);
  padding: 0.4rem 0.5rem;
  background-color: var(--bg-muted);
}

.thumb-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  transition: all var(--transition-fast);
}
.thumb-btn:hover {
  color: var(--text-main);
  background-color: var(--bg-surface);
}
.thumb-btn.delete-btn:hover {
  color: var(--accent-red);
}

/* Tool Settings & Controls Bar */
.tool-controls-bar {
  background-color: var(--bg-muted);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.control-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.control-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-main);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.control-select, .control-input {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.75rem;
  font-size: 0.9rem;
  color: var(--text-main);
  transition: border-color var(--transition-fast);
}
.control-select:focus, .control-input:focus {
  border-color: var(--brand-blue);
  outline: none;
}

.range-slider-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.range-slider {
  flex: 1;
  accent-color: var(--brand-blue);
}
.range-val-badge {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--brand-blue);
  width: 44px;
}

/* Tool Action Footer */
.tool-footer-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Progress & Loading States */
.progress-container {
  display: none;
  margin: 1.5rem 0;
  background-color: var(--bg-muted);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  border: 1px solid var(--border-color);
}
.progress-container.active {
  display: block;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 0.88rem;
  font-weight: 600;
}

.progress-track {
  height: 8px;
  background-color: var(--border-color);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--brand-gradient);
  border-radius: var(--radius-full);
  transition: width 0.3s ease;
}

/* Result Card */
.conversion-result-card {
  display: none;
  margin-top: 2rem;
  background: rgba(16, 185, 129, 0.06);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.25rem;
}
.conversion-result-card.active {
  display: flex;
}

.result-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.result-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-red);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 0.85rem;
  box-shadow: 0 4px 10px rgba(239, 68, 68, 0.3);
}
.result-details h4 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.2rem;
}
.result-details p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.result-action-buttons {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   PDF to Image & PDF Viewer Specifics
   -------------------------------------------------------------------------- */
.pdf-pages-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 1.75rem;
}

.pdf-page-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}
.pdf-page-canvas-wrap {
  background: #f1f5f9;
  padding: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
}
.pdf-page-canvas-wrap canvas {
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
  max-height: 280px;
  width: auto;
}
.pdf-page-footer {
  padding: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-color);
}
.pdf-page-label {
  font-size: 0.85rem;
  font-weight: 700;
}

/* PDF Viewer Embedded Toolbar */
.viewer-workspace {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.viewer-toolbar {
  background-color: var(--brand-navy-950);
  color: #ffffff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}
.viewer-nav-group, .viewer-zoom-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.viewer-page-counter {
  font-size: 0.9rem;
  font-weight: 600;
}
.viewer-page-input {
  width: 48px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #ffffff;
  border-radius: 4px;
  text-align: center;
  padding: 0.2rem;
}

.viewer-canvas-stage {
  background-color: #334155;
  border-radius: var(--radius-lg);
  padding: 2rem 1rem;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 550px;
  max-height: 750px;
  overflow: auto;
}
.viewer-canvas-stage canvas {
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  background-color: #ffffff;
}

/* --------------------------------------------------------------------------
   My PDFs Local Vault (Faithful to Screenshot 3)
   -------------------------------------------------------------------------- */
.mypdfs-section {
  padding: 3.5rem 0 5rem;
}

.mypdfs-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.mypdfs-header {
  background-color: var(--brand-navy-950);
  color: #ffffff;
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.mypdfs-title-group {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mypdfs-title {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

/* Filter pills matching Screenshot 3 */
.filter-pills-bar {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1.25rem 2rem;
  background-color: var(--bg-muted);
  border-bottom: 1px solid var(--border-color);
  overflow-x: auto;
}

.filter-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1.15rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  transition: all var(--transition-fast);
  cursor: pointer;
}
.filter-pill:hover {
  color: var(--text-main);
  border-color: var(--text-muted);
}
.filter-pill.active {
  background-color: var(--brand-navy-950);
  color: #ffffff;
  border-color: var(--brand-navy-950);
}
[data-theme="dark"] .filter-pill.active {
  background-color: var(--brand-blue);
  border-color: var(--brand-blue);
}

.mypdfs-list-container {
  padding: 1.25rem 2rem 2.5rem;
  min-height: 280px;
}

.mypdfs-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
  transition: background-color var(--transition-fast);
}
.mypdfs-item:last-child {
  border-bottom: none;
}
.mypdfs-item:hover {
  background-color: rgba(0, 0, 0, 0.015);
}

.mypdfs-item-left {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  flex: 1;
  min-width: 0;
}

/* Red PDF icon container matching screenshot 3 */
.mypdfs-item-icon {
  width: 48px;
  height: 48px;
  background: #eef2ff;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
[data-theme="dark"] .mypdfs-item-icon {
  background: #192754;
}

.mini-pdf-badge {
  background: var(--accent-red);
  color: #ffffff;
  font-size: 0.65rem;
  font-weight: 900;
  padding: 0.25rem 0.35rem;
  border-radius: 4px;
  line-height: 1;
  letter-spacing: 0.5px;
}

.mypdfs-item-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.mypdfs-item-name {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-main);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mypdfs-item-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: 0.15rem;
}

.mypdfs-item-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.item-action-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  transition: all var(--transition-fast);
}
.item-action-btn:hover {
  color: var(--brand-blue);
  background-color: var(--bg-muted);
}
.item-action-btn.btn-delete:hover {
  color: var(--accent-red);
}

.mypdfs-empty-state {
  text-align: center;
  padding: 4rem 1.5rem;
  color: var(--text-muted);
}
.mypdfs-empty-icon {
  font-size: 3rem;
  color: var(--text-dim);
  margin-bottom: 1rem;
}

/* Privacy notice card inside My PDFs */
.local-storage-notice {
  margin: 1.5rem 2rem 0;
  padding: 1rem 1.25rem;
  background: rgba(29, 107, 243, 0.05);
  border: 1px solid rgba(29, 107, 243, 0.2);
  border-radius: var(--radius-md);
  font-size: 0.85rem;
  color: var(--text-muted);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}
.local-storage-notice svg {
  color: var(--brand-blue);
  flex-shrink: 0;
  margin-top: 2px;
}

/* --------------------------------------------------------------------------
   Settings Modal / Panel (Faithful to Screenshot 4)
   -------------------------------------------------------------------------- */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(5, 11, 37, 0.75);
  backdrop-filter: blur(8px);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}
.modal-overlay.open {
  display: flex;
}

.settings-modal-dialog {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: modalScaleUp 0.25s ease-out;
}
@keyframes modalScaleUp {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.settings-modal-header {
  background-color: var(--brand-navy-950);
  color: #ffffff;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.settings-modal-header h3 {
  font-size: 1.25rem;
  font-weight: 800;
}

.settings-modal-body {
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.settings-group-label {
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

/* Charcoal Settings Group Card (Matching Screenshot 4) */
.settings-group-card {
  background-color: #3b3f4d; /* Charcoal card as seen in Screenshot 4 */
  color: #ffffff;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
[data-theme="dark"] .settings-group-card {
  background-color: #17213d;
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.15rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.settings-row:last-child {
  border-bottom: none;
}

.settings-row-left {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: #ffffff;
}
.settings-row-left svg {
  color: #94a3b8;
}

.settings-subtext {
  font-size: 0.75rem;
  color: #94a3b8;
  display: block;
}

.settings-row-val {
  font-size: 0.88rem;
  font-weight: 600;
  color: #38bdf8;
}

/* --------------------------------------------------------------------------
   How It Works & Feature Highlights
   -------------------------------------------------------------------------- */
.how-it-works-section {
  padding: 4.5rem 0;
  background-color: var(--bg-muted);
}

.section-intro {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 3rem;
}
.section-intro h2 {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  color: var(--text-main);
  letter-spacing: -0.02em;
}
.section-intro p {
  font-size: 1.05rem;
  color: var(--text-muted);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.step-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  text-align: center;
  position: relative;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-normal);
}
.step-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.step-num-badge {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--brand-gradient);
  color: #ffffff;
  font-weight: 800;
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
  box-shadow: 0 4px 12px rgba(29, 107, 243, 0.35);
}

.step-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
  color: var(--text-main);
}
.step-card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* Features Grid */
.features-section {
  padding: 4.5rem 0;
  background-color: var(--bg-page);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
}

.feature-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  gap: 1.25rem;
  transition: all var(--transition-fast);
}
.feature-box:hover {
  border-color: rgba(29, 107, 243, 0.3);
  box-shadow: var(--shadow-md);
}

.feature-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: rgba(29, 107, 243, 0.1);
  color: var(--brand-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.feature-box h4 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
  color: var(--text-main);
}
.feature-box p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   FAQ Accordion Section
   -------------------------------------------------------------------------- */
.faq-section {
  padding: 4.5rem 0;
  background-color: var(--bg-muted);
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.faq-question-btn {
  width: 100%;
  padding: 1.25rem 1.5rem;
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-main);
  background: none;
  transition: color var(--transition-fast);
}
.faq-question-btn:hover {
  color: var(--brand-blue);
}

.faq-icon-arrow {
  transition: transform var(--transition-normal);
  color: var(--text-muted);
  flex-shrink: 0;
}
.faq-item.open .faq-icon-arrow {
  transform: rotate(180deg);
  color: var(--brand-blue);
}

.faq-answer {
  display: none;
  padding: 0 1.5rem 1.25rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.6;
}
.faq-item.open .faq-answer {
  display: block;
}

/* --------------------------------------------------------------------------
   Footer Section
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--brand-navy-950);
  color: #94a3b8;
  padding: 4.5rem 0 2rem;
  margin-top: auto;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand-col p {
  font-size: 0.92rem;
  line-height: 1.6;
  margin: 1rem 0 1.5rem;
  max-width: 320px;
}

.footer-badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.25);
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 700;
  color: #34d399;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.footer-links a {
  color: #94a3b8;
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}
.footer-links a:hover {
  color: #ffffff;
  text-decoration: none;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}

/* --------------------------------------------------------------------------
   Toast Notifications & Accessible Live Region
   -------------------------------------------------------------------------- */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 400px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background-color: var(--brand-navy-950);
  color: #ffffff;
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  border: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  animation: toastSlideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}
@keyframes toastSlideIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.toast.toast-success {
  border-left: 4px solid var(--accent-green);
}
.toast.toast-error {
  border-left: 4px solid var(--accent-red);
}

/* --------------------------------------------------------------------------
   Informational & Legal Pages Layout (About, Privacy, Terms, Contact)
   -------------------------------------------------------------------------- */
.page-hero {
  background-color: var(--brand-navy-950);
  color: #ffffff;
  padding: 3.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.page-hero-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}
.page-hero-sub {
  font-size: 1.1rem;
  color: #94a3b8;
}

.doc-content-section {
  padding: 4rem 0;
}

.legal-article {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 3rem;
  box-shadow: var(--shadow-sm);
}

.legal-article h2 {
  font-size: 1.6rem;
  font-weight: 800;
  margin: 2.5rem 0 1rem;
  color: var(--text-main);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}
.legal-article h2:first-of-type {
  margin-top: 1rem;
}

.legal-article h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 1.5rem 0 0.5rem;
  color: var(--text-main);
}

.legal-article p, .legal-article ul {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.legal-article ul {
  padding-left: 1.5rem;
}
.legal-article li {
  margin-bottom: 0.4rem;
}

.toc-box {
  background-color: var(--bg-muted);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  margin-bottom: 2.5rem;
}
.toc-box h3 {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 1rem;
  color: var(--text-main);
}
.toc-box ol {
  padding-left: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.toc-box a {
  font-weight: 600;
  font-size: 0.95rem;
}

.placeholder-badge {
  display: inline-block;
  background: #fef3c7;
  color: #92400e;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px dashed #d97706;
}

/* App Showcase Gallery for About Page */
.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.75rem;
  margin: 2.5rem 0;
}
.showcase-item {
  background-color: var(--bg-muted);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  text-align: center;
}
.showcase-item img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  object-position: top;
  border-bottom: 1px solid var(--border-color);
}
.showcase-caption {
  padding: 1rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-main);
}

/* Contact Form Styling */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.contact-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
}

.form-group {
  margin-bottom: 1.5rem;
}
.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}
.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background-color: var(--bg-subtle);
  color: var(--text-main);
  transition: border-color var(--transition-fast);
}
.form-control:focus {
  border-color: var(--brand-blue);
  outline: none;
}

/* --------------------------------------------------------------------------
   Responsive Breakpoints
   -------------------------------------------------------------------------- */
@media (max-width: 1180px) {
  .nav-links {
    gap: 1rem;
  }
  .nav-link {
    font-size: 0.88rem;
    padding: 0.4rem 0.2rem;
  }
  .brand-tagline-small {
    display: none;
  }
  .nav-actions {
    gap: 0.5rem;
  }
  .nav-actions .btn-primary,
  .nav-actions .btn-nav-download {
    padding: 0.55rem 0.95rem;
    font-size: 0.85rem;
  }
}

@media (max-width: 1024px) {
  /* Switch to hamburger menu on tablets & phone landscape modes */
  .nav-menu,
  .nav-links,
  .nav-actions .btn-primary,
  .nav-actions .btn-nav-download {
    display: none !important;
  }
  .hamburger-btn {
    display: flex !important;
  }
  .mobile-nav {
    display: flex;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .hero-visual {
    max-width: 600px;
    margin: 0 auto;
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.25rem;
  }
  .tool-panel {
    padding: 1.5rem 1rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .legal-article {
    padding: 1.75rem 1.25rem;
  }
}

@media (max-width: 640px) {
  .nav-wrapper {
    height: 64px;
  }
  .brand-link {
    gap: 0.5rem;
  }
  .brand-icon {
    width: 36px;
    height: 36px;
  }
  .brand-name {
    font-size: 1.05rem;
  }
  .nav-actions {
    gap: 0.4rem;
  }
  .btn-icon {
    width: 36px;
    height: 36px;
  }
  .hamburger-btn {
    width: 38px;
    height: 38px;
  }
}

@media (max-width: 480px) {
  .nav-wrapper {
    padding-left: 0.25rem;
    padding-right: 0.25rem;
  }
  .brand-name {
    font-size: 0.95rem;
    max-width: 130px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================================
   Ad System & Sponsored Modals Styles
   ========================================================================== */

/* Interstitial Ad Modal */
.ad-modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(5, 11, 37, 0.88);
  backdrop-filter: blur(10px);
  z-index: 10000;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  animation: adFadeIn 0.25s ease-out;
}
.ad-modal-overlay.active {
  display: flex;
}
@keyframes adFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.ad-modal-dialog {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 620px;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.6);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.ad-modal-header {
  background-color: var(--bg-muted);
  border-bottom: 1px solid var(--border-color);
  padding: 0.85rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ad-sponsor-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.ad-sponsor-tag span {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  background: rgba(29, 107, 243, 0.12);
  color: var(--brand-blue);
  border-radius: 4px;
}

.ad-skip-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1rem;
  font-size: 0.82rem;
  font-weight: 800;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-color);
  background: var(--bg-surface);
  color: var(--text-muted);
  cursor: not-allowed;
  transition: all var(--transition-fast);
}
.ad-skip-btn.can-skip {
  background: var(--brand-gradient);
  color: #ffffff;
  border-color: transparent;
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(29, 107, 243, 0.35);
}
.ad-skip-btn.can-skip:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(29, 107, 243, 0.45);
}

.ad-modal-content {
  padding: 1.5rem;
  background-color: var(--bg-surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

/* Real Interactive Sponsored Ad Display Unit */
.real-ad-card {
  width: 100%;
  background: linear-gradient(145deg, #0f172a 0%, #1e293b 100%);
  color: #ffffff;
  border-radius: var(--radius-lg);
  padding: 1.75rem 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.real-ad-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 0.68rem;
  font-weight: 700;
  color: #94a3b8;
  background: rgba(0, 0, 0, 0.4);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}
.real-ad-icon {
  width: 68px;
  height: 68px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #3b82f6 0%, #06b6d4 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.35);
  color: #ffffff;
}
.real-ad-title {
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
  color: #ffffff;
}
.real-ad-desc {
  font-size: 0.92rem;
  color: #cbd5e1;
  max-width: 440px;
  line-height: 1.5;
  margin-bottom: 1.25rem;
}
.real-ad-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.65rem 1.5rem;
  background: #ffffff;
  color: #0f172a;
  font-weight: 800;
  font-size: 0.92rem;
  border-radius: var(--radius-full);
  text-decoration: none;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}
.real-ad-cta-btn:hover {
  background: #f8fafc;
  transform: translateY(-2px);
  text-decoration: none;
}

/* Modal Bottom Pro Upsell */
.ad-modal-footer {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.12) 0%, rgba(234, 88, 12, 0.12) 100%);
  border-top: 1px solid rgba(245, 158, 11, 0.25);
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 0.75rem;
}

/* Result Card Sponsored Banner */
.result-ad-banner {
  margin-top: 1.25rem;
  padding: 1rem 1.25rem;
  background: var(--bg-surface);
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  width: 100%;
}
.result-ad-left {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}
.result-ad-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(29, 107, 243, 0.1);
  color: var(--brand-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* ==========================================================================
   Custom Ads & Sponsors Manager Modal (Admin Control)
   ========================================================================== */
.custom-ads-dialog {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 780px;
  max-height: 90vh;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.7);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: modalScaleUp 0.25s ease-out;
}

.custom-ads-header {
  background: linear-gradient(135deg, #050b25 0%, #1e293b 100%);
  color: #ffffff;
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.custom-ads-header .close-btn {
  color: #cbd5e1;
  font-size: 1.6rem;
  background: none;
  border: none;
  cursor: pointer;
  line-height: 1;
}

.ad-manager-tabs {
  display: flex;
  gap: 0.5rem;
  padding: 0.85rem 1.5rem;
  background: var(--bg-muted);
  border-bottom: 1px solid var(--border-color);
  flex-wrap: wrap;
}
.ad-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.15rem;
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  font-weight: 700;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.ad-tab-btn:hover {
  color: var(--text-main);
  border-color: var(--brand-blue);
}
.ad-tab-btn.active {
  background: var(--brand-blue);
  color: #ffffff;
  border-color: var(--brand-blue);
  box-shadow: 0 3px 10px rgba(29, 107, 243, 0.35);
}
.ad-tab-btn .badge-pill {
  padding: 0.1rem 0.45rem;
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 800;
}

.custom-ads-body {
  padding: 1.5rem;
  overflow-y: auto;
  flex: 1;
}

.ad-manager-pane {
  display: none;
}
.ad-manager-pane.active {
  display: block;
}

/* Custom Ads Card List */
.custom-ads-cards-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.custom-ad-item-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.15rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color var(--transition-fast);
}
.custom-ad-item-card:hover {
  border-color: var(--brand-blue);
}
.custom-ad-item-card.is-inactive {
  opacity: 0.6;
  border-style: dashed;
}

.ad-card-top-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.ad-card-badge-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.ad-sponsor-pill {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.2rem 0.5rem;
  background: rgba(29, 107, 243, 0.12);
  color: var(--brand-blue);
  border-radius: 4px;
}
.ad-status-pill {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}
.ad-status-pill.active {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
}
.ad-status-pill.inactive {
  background: rgba(148, 163, 184, 0.15);
  color: var(--text-muted);
}

.ad-card-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.ad-btn-toggle {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-color);
  background: var(--bg-muted);
  cursor: pointer;
  color: var(--text-main);
  transition: all var(--transition-fast);
}
.ad-btn-toggle:hover {
  background: var(--bg-surface);
}
.ad-btn-preview {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.7rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--brand-blue);
  background: rgba(29, 107, 243, 0.1);
  color: var(--brand-blue);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.ad-btn-preview:hover {
  background: var(--brand-blue);
  color: #ffffff;
}
.ad-btn-delete {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--accent-red);
  background: rgba(239, 68, 68, 0.1);
  color: var(--accent-red);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.ad-btn-delete:hover {
  background: var(--accent-red);
  color: #ffffff;
}

.ad-card-title {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-main);
  margin: 0;
}
.ad-card-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin: 0;
}
.ad-card-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  flex-wrap: wrap;
  padding-top: 0.4rem;
  border-top: 1px dashed var(--border-color);
}
.ad-card-meta a {
  color: var(--brand-blue);
  word-break: break-all;
  text-decoration: underline;
}

/* Forms in Ad Manager */
.create-ad-form {
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}
.form-row-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 640px) {
  .form-row-2 {
    grid-template-columns: 1fr;
  }
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.form-group label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-main);
}
.form-input, .form-textarea {
  width: 100%;
  padding: 0.75rem 0.95rem;
  font-size: 0.9rem;
  background: var(--bg-muted);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-family: inherit;
  transition: border-color var(--transition-fast);
}
.form-input:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--brand-blue);
  background: var(--bg-surface);
}
.field-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.35;
}
.form-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

/* ==========================================================================
   Configurable Ad-Free & QR Payment System Styles (Owner Admin Control)
   ========================================================================== */

/* Header Pro Badge / Button */
.btn-pro-nav {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.55rem 1.15rem;
  font-weight: 800;
  font-size: 0.88rem;
  color: #ffffff;
  background: linear-gradient(135deg, #f59e0b 0%, #ea580c 100%);
  border-radius: var(--radius-full);
  box-shadow: 0 4px 14px rgba(245, 158, 11, 0.4);
  transition: all var(--transition-fast);
  text-decoration: none;
  border: none;
  cursor: pointer;
}
.btn-pro-nav:hover {
  background: linear-gradient(135deg, #fbbf24 0%, #f97316 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.55);
}
.btn-pro-nav.is-subscribed {
  background: linear-gradient(135deg, #10b981 0%, #059669 100%);
  box-shadow: 0 4px 14px rgba(16, 185, 129, 0.4);
}

/* Ad Modal Upgrade Footer */
.ad-pro-pitch {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-main);
}
.ad-pro-pitch strong {
  color: #ea580c;
}
.btn-ad-upgrade {
  padding: 0.45rem 1rem;
  font-size: 0.82rem;
  font-weight: 800;
  color: #ffffff;
  background: linear-gradient(135deg, #f59e0b 0%, #ea580c 100%);
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.btn-ad-upgrade:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(245, 158, 11, 0.4);
}

/* Switch Toggle Component */
.switch-toggle {
  position: relative;
  display: inline-block;
  width: 52px;
  height: 28px;
  flex-shrink: 0;
}
.switch-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}
.switch-slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--border-color);
  transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 34px;
}
.switch-slider:before {
  position: absolute;
  content: "";
  height: 20px;
  width: 20px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 50%;
  box-shadow: 0 2px 5px rgba(0,0,0,0.25);
}
.switch-toggle input:checked + .switch-slider {
  background-color: var(--accent-green);
}
.switch-toggle input:checked + .switch-slider:before {
  transform: translateX(24px);
}

/* Payment Configuration Cards in Admin */
.payment-config-status-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  margin-bottom: 0.75rem;
}
.payment-switch-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.payment-qr-config-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  margin-top: 0.5rem;
}
.qr-setup-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.5rem;
  align-items: center;
}
@media (max-width: 600px) {
  .qr-setup-grid {
    grid-template-columns: 1fr;
  }
}
.qr-preview-box {
  width: 170px;
  height: 170px;
  background: #ffffff;
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem;
  box-shadow: 0 4px 12px rgba(0,0,0,0.06);
  overflow: hidden;
}
.qr-placeholder-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  color: #94a3b8;
  font-size: 0.78rem;
  font-weight: 600;
  text-align: center;
}
.qr-controls-col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Premium Payment & QR Modal */
.sub-modal-dialog {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.7);
  overflow-y: auto;
  animation: modalScaleUp 0.25s ease-out;
}
.sub-modal-header {
  background: linear-gradient(135deg, #050b25 0%, #1e293b 100%);
  color: #ffffff;
  padding: 1.75rem 1.5rem 1.25rem;
  text-align: center;
  position: relative;
}
.sub-modal-header .close-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  color: #cbd5e1;
  font-size: 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
}
.sub-badge-gold {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.8rem;
  background: rgba(245, 158, 11, 0.2);
  border: 1px solid rgba(245, 158, 11, 0.4);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 800;
  color: #fbbf24;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.6rem;
}
.sub-modal-title {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 0.2rem;
}
.sub-price-tag {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.35rem;
  margin-top: 0.6rem;
}
.sub-currency {
  font-size: 1.35rem;
  font-weight: 800;
  color: #fbbf24;
}
.sub-amount {
  font-size: 2.75rem;
  font-weight: 900;
  color: #ffffff;
  line-height: 1;
}
.sub-period {
  font-size: 0.95rem;
  color: #94a3b8;
  font-weight: 600;
}
.sub-modal-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.15rem;
}
.sub-features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}
.sub-features-list li {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.9rem;
  color: var(--text-main);
  font-weight: 600;
}
.sub-features-list li svg {
  color: var(--accent-green);
  flex-shrink: 0;
}

.payment-methods-card {
  background: var(--bg-muted);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.15rem;
}
.payment-methods-card h4 {
  font-size: 0.92rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: var(--text-main);
  text-align: center;
}

/* Modal QR Section */
.modal-qr-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}
.modal-qr-frame {
  background: #ffffff;
  padding: 0.65rem;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
}
.modal-qr-frame img {
  width: 165px;
  height: 165px;
  object-fit: contain;
  display: block;
}
.qr-scan-hint {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--brand-blue);
  letter-spacing: 0.02em;
}

.upi-pay-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  padding: 0.65rem 0.9rem;
  border-radius: var(--radius-md);
  margin-bottom: 0.75rem;
}
.upi-id-text {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--brand-blue);
  word-break: break-all;
}
.btn-activate-pro {
  width: 100%;
  padding: 0.85rem;
  font-size: 0.98rem;
  font-weight: 800;
  color: #ffffff;
  background: linear-gradient(135deg, #f59e0b 0%, #ea580c 100%);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.35);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}
.btn-activate-pro:hover {
  background: linear-gradient(135deg, #fbbf24 0%, #f97316 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.5);
}
.sub-guarantee-note {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
}