/* =============================================================
   TetaChat Website - Main Stylesheet
   Version: 1.0.0
   Author: TetaCode
   Description: Shared styles for index.html and privacy.html
   ============================================================= */

/* ---------------------------------------------------------------
   1. CSS CUSTOM PROPERTIES (VARIABLES)
--------------------------------------------------------------- */
:root {
  /* Brand Colors */
  --color-primary: #5b6af0;
  --color-primary-dark: #4455e8;
  --color-primary-light: #7b88f4;
  --color-secondary: #1e1e2e;
  --color-accent: #00d4aa;

  /* Neutrals */
  --color-bg: #0d0d1a;
  --color-bg-card: #16162a;
  --color-bg-card-hover: #1e1e38;
  --color-surface: #1a1a30;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-focus: rgba(91, 106, 240, 0.6);

  /* Text */
  --color-text-primary: #f0f0fc;
  --color-text-secondary: #a0a0c0;
  --color-text-muted: #6060a0;
  --color-text-inverse: #0d0d1a;

  /* Status */
  --color-success: #00d4aa;
  --color-warning: #f5a623;
  --color-error: #e25555;

  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #5b6af0 0%, #00d4aa 100%);
  --gradient-hero: linear-gradient(135deg, #0d0d1a 0%, #1a1a30 50%, #0d0d2a 100%);
  --gradient-card: linear-gradient(135deg, rgba(91, 106, 240, 0.08), rgba(0, 212, 170, 0.04));
  --gradient-glow: radial-gradient(ellipse at center, rgba(91, 106, 240, 0.15) 0%, transparent 70%);

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  --font-size-xs: 0.75rem;    /* 12px */
  --font-size-sm: 0.875rem;   /* 14px */
  --font-size-base: 1rem;     /* 16px */
  --font-size-lg: 1.125rem;   /* 18px */
  --font-size-xl: 1.25rem;    /* 20px */
  --font-size-2xl: 1.5rem;    /* 24px */
  --font-size-3xl: 1.875rem;  /* 30px */
  --font-size-4xl: 2.25rem;   /* 36px */
  --font-size-5xl: 3rem;      /* 48px */
  --font-size-6xl: 3.75rem;   /* 60px */

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

  --line-height-tight: 1.25;
  --line-height-snug: 1.375;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.625;
  --line-height-loose: 2;

  /* Spacing */
  --spacing-1: 0.25rem;
  --spacing-2: 0.5rem;
  --spacing-3: 0.75rem;
  --spacing-4: 1rem;
  --spacing-5: 1.25rem;
  --spacing-6: 1.5rem;
  --spacing-8: 2rem;
  --spacing-10: 2.5rem;
  --spacing-12: 3rem;
  --spacing-16: 4rem;
  --spacing-20: 5rem;
  --spacing-24: 6rem;

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-xl: 0 16px 64px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(91, 106, 240, 0.2);
  --shadow-glow-accent: 0 0 40px rgba(0, 212, 170, 0.2);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Z-Index Scale */
  --z-base: 0;
  --z-raised: 10;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;

  /* Layout */
  --container-max: 1200px;
  --nav-height: 70px;
}

/* ---------------------------------------------------------------
   2. CSS RESET & BASE STYLES
--------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-normal);
  line-height: var(--line-height-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Improve media defaults */
img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
}

/* Remove built-in form typography styles */
input, button, textarea, select {
  font: inherit;
}

/* Avoid text overflows */
p, h1, h2, h3, h4, h5, h6 {
  overflow-wrap: break-word;
}

/* Anchor reset */
a {
  color: var(--color-primary-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-accent);
}

a:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Lists */
ul, ol {
  list-style: none;
}

/* ---------------------------------------------------------------
   3. TYPOGRAPHY
--------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
}

h1 { font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-6xl)); }
h2 { font-size: clamp(var(--font-size-2xl), 3.5vw, var(--font-size-4xl)); }
h3 { font-size: clamp(var(--font-size-xl), 2.5vw, var(--font-size-3xl)); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
  max-width: 65ch;
}

strong, b {
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
}

code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: rgba(91, 106, 240, 0.15);
  color: var(--color-primary-light);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
}

/* ---------------------------------------------------------------
   4. LAYOUT UTILITIES
--------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--spacing-6);
}

@media (max-width: 768px) {
  .container {
    padding-inline: var(--spacing-4);
  }
}

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

/* ---------------------------------------------------------------
   5. NAVIGATION
--------------------------------------------------------------- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  height: var(--nav-height);
  display: flex;
  align-items: center;
  background: rgba(13, 13, 26, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base), background var(--transition-base);
}

.site-nav.scrolled {
  border-bottom-color: var(--color-border);
  background: rgba(13, 13, 26, 0.95);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--spacing-6);
  min-width: 0;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  color: var(--color-text-primary);
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-xl);
  letter-spacing: -0.02em;
  transition: opacity var(--transition-fast);
  flex-shrink: 0;
}

.nav-logo:hover {
  color: var(--color-text-primary);
  opacity: 0.85;
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  overflow: hidden;
}

.nav-logo-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.nav-logo-text span {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-8);
}

.nav-links a {
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  transition: color var(--transition-fast);
  position: relative;
  padding-block: var(--spacing-2);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-primary);
  transition: width var(--transition-base);
  border-radius: var(--radius-full);
}

.nav-links a:hover {
  color: var(--color-text-primary);
}

.nav-links a:hover::after {
  width: 100%;
}

/* Nav CTA */
.nav-cta {
  display: flex;
  align-items: center;
  gap: var(--spacing-4);
}

/* ── Language switcher ── */
.lang-switcher {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 2px;
  gap: 0;
  flex-shrink: 0;
}

.lang-btn {
  background: none;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  padding: 4px 10px;
  line-height: 1;
  transition: background 0.15s, color 0.15s;
  white-space: nowrap;
}

.lang-btn:hover {
  color: var(--color-text-primary);
}

.lang-btn.active {
  background: var(--color-primary);
  color: #fff;
}

/* Mobile lang bar — shown below nav on small screens */
.lang-bar-mobile {
  display: none;
}

/* Lang switcher inline in navbar — mobile only */
.lang-mobile-inline {
  display: none;
  align-items: center;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 2px;
  flex-shrink: 0;
  overflow: hidden;
}

/* Mobile menu — hidden by default on all screen sizes; only shown via JS .open class on mobile */
.nav-mobile-menu {
  display: none;
}

/* Hamburger menu - mobile */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-1);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text-primary);
  border-radius: var(--radius-full);
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------------------------------------------------------------
   6. BUTTONS
--------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-6);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  line-height: 1;
  border-radius: var(--radius-lg);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 3px;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0);
  transition: background var(--transition-fast);
}

.btn:hover::before {
  background: rgba(255, 255, 255, 0.06);
}

/* Primary button */
.btn-primary {
  background: var(--gradient-primary);
  color: #fff;
  box-shadow: 0 4px 20px rgba(91, 106, 240, 0.35);
}

.btn-primary:hover {
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(91, 106, 240, 0.5);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 2px 12px rgba(91, 106, 240, 0.3);
}

/* Secondary / ghost button */
.btn-secondary {
  background: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  color: var(--color-text-primary);
  border-color: rgba(91, 106, 240, 0.5);
  background: rgba(91, 106, 240, 0.08);
}

/* Outline accent button */
.btn-outline {
  background: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn-outline:hover {
  background: rgba(0, 212, 170, 0.1);
  color: var(--color-accent);
  box-shadow: 0 0 20px rgba(0, 212, 170, 0.2);
}

/* Button sizes */
.btn-sm {
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--font-size-xs);
  border-radius: var(--radius-md);
}

.btn-lg {
  padding: var(--spacing-4) var(--spacing-8);
  font-size: var(--font-size-lg);
  border-radius: var(--radius-xl);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius-lg);
  font-size: var(--font-size-lg);
}

/* ---------------------------------------------------------------
   7. HERO SECTION
--------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  overflow: hidden;
  background: var(--gradient-hero);
}

/* Animated background grid */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(91, 106, 240, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(91, 106, 240, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

/* Glow orbs */
.hero::after {
  content: '';
  position: absolute;
  top: 20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(91, 106, 240, 0.12) 0%, rgba(0, 212, 170, 0.06) 40%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-16);
  align-items: center;
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--spacing-6);
  padding-block: var(--spacing-20);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-1) var(--spacing-3) var(--spacing-1) var(--spacing-2);
  background: rgba(91, 106, 240, 0.12);
  border: 1px solid rgba(91, 106, 240, 0.3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary-light);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-6);
  width: fit-content;
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

.hero-title {
  margin-bottom: var(--spacing-6);
}

.hero-title .gradient-text {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
}

.hero-description {
  font-size: var(--font-size-lg);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-8);
  max-width: 50ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  margin-bottom: var(--spacing-10);
}

.hero-stats {
  display: flex;
  gap: var(--spacing-8);
}

.stat {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
}

.stat-value {
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-extrabold);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.stat-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Hero Visual / App Preview */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.app-preview-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
  width: 100%;
  max-width: 500px;
}

.app-preview {
  position: relative;
  width: 100%;
}

.preview-badges-row {
  display: flex;
  gap: var(--spacing-3);
  justify-content: center;
}

.app-window {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  position: relative;
  z-index: 1;
}

/* macOS-style title bar */
.app-titlebar {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-3) var(--spacing-4);
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--color-border);
}

.titlebar-dot {
  width: 12px;
  height: 12px;
  border-radius: var(--radius-full);
}

.titlebar-dot:nth-child(1) { background: #ff5f57; }
.titlebar-dot:nth-child(2) { background: #febc2e; }
.titlebar-dot:nth-child(3) { background: #28c840; }

.app-titlebar-label {
  margin-left: auto;
  margin-right: auto;
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* Chat UI mock */
.app-content {
  display: grid;
  grid-template-columns: 220px 1fr;
  height: 340px;
}

.app-sidebar {
  border-right: 1px solid var(--color-border);
  padding: var(--spacing-3);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
  overflow: hidden;
}

.sidebar-search {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--spacing-2) var(--spacing-3);
  font-size: var(--font-size-xs);
  color: var(--color-text);
  margin-bottom: var(--spacing-2);
  width: 100%;
  outline: none;
  font-family: inherit;
}

.sidebar-search::placeholder { color: var(--color-text-muted); }
.sidebar-search:focus { border-color: var(--color-primary); }

.chat-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.chat-item.active {
  background: rgba(91, 106, 240, 0.2);
}

.chat-item:hover:not(.active) {
  background: rgba(255, 255, 255, 0.04);
}

.chat-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: var(--font-weight-bold);
  color: #fff;
}

.chat-info {
  flex: 1;
  overflow: hidden;
  min-width: 0;
}

.chat-name {
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-preview {
  font-size: 10px;
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-time {
  font-size: 10px;
  color: var(--color-text-muted);
  flex-shrink: 0;
}

/* Message area */
.app-messages {
  display: flex;
  flex-direction: column;
  padding: var(--spacing-3);
  gap: var(--spacing-3);
  overflow-y: auto;
  scroll-behavior: smooth;
}

.app-messages::-webkit-scrollbar { width: 4px; }
.app-messages::-webkit-scrollbar-track { background: transparent; }
.app-messages::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 2px; }

.message {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
  max-width: 80%;
}

.message.incoming { align-self: flex-start; }
.message.outgoing { align-self: flex-end; }

.message-bubble {
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--radius-xl);
  font-size: var(--font-size-xs);
  line-height: var(--line-height-normal);
}

.message.incoming .message-bubble {
  background: rgba(255, 255, 255, 0.06);
  color: var(--color-text-primary);
  border-bottom-left-radius: var(--radius-sm);
}

.message.outgoing .message-bubble {
  background: var(--color-primary);
  color: #fff;
  border-bottom-right-radius: var(--radius-sm);
}

.message-time {
  font-size: 10px;
  color: var(--color-text-muted);
  padding-inline: var(--spacing-2);
}

.app-input-row {
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-3);
  display: flex;
  align-items: center;
  gap: var(--spacing-2);
}

.app-input {
  flex: 1;
  min-width: 0;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: var(--spacing-2) var(--spacing-4);
  font-size: var(--font-size-xs);
  color: var(--color-text);
  outline: none;
  font-family: inherit;
}

.app-input::placeholder { color: var(--color-text-muted); }
.app-input:focus { border-color: var(--color-primary); }

.app-send-btn {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 12px;
  color: #fff;
}

/* Floating badges on app preview */
.preview-badge {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--spacing-3) var(--spacing-4);
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  box-shadow: var(--shadow-lg);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  animation: float 3s ease-in-out infinite;
  flex: 1;
}

.preview-badge-icon {
  font-size: var(--font-size-xl);
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ---------------------------------------------------------------
   Demo Video Section
--------------------------------------------------------------- */
.demo-video-wrap {
  position: relative;
  width: 100%;
  max-width: 860px;
  margin: 0 auto;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  border: 1px solid var(--color-border);
  aspect-ratio: 16 / 9;
}

.demo-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

/* ---------------------------------------------------------------
   8. SECTION SHARED STYLES
--------------------------------------------------------------- */
.section {
  padding-block: var(--spacing-24);
}

.section-alt {
  background: var(--color-bg-card);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-16);
}

.section-eyebrow {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary-light);
  margin-bottom: var(--spacing-4);
  background: rgba(91, 106, 240, 0.1);
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--radius-full);
  border: 1px solid rgba(91, 106, 240, 0.2);
}

.section-title {
  margin-bottom: var(--spacing-4);
}

.section-description {
  font-size: var(--font-size-lg);
  max-width: 60ch;
  margin-inline: auto;
}

/* ---------------------------------------------------------------
   9. FEATURES SECTION
--------------------------------------------------------------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-6);
}

.feature-card {
  background: var(--gradient-card);
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-8);
  transition: border-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
}

.feature-card:hover {
  border-color: rgba(91, 106, 240, 0.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), 0 0 40px rgba(91, 106, 240, 0.08);
}

.feature-icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: var(--spacing-5);
  position: relative;
}

.feature-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-3);
}

.feature-card p {
  font-size: var(--font-size-sm);
  max-width: none;
}

/* Feature icon color variants */
.icon-blue      { background: rgba(91, 106, 240, 0.15); }
.icon-green     { background: rgba(0, 212, 170, 0.15); }
.icon-purple    { background: rgba(168, 85, 247, 0.15); }
.icon-orange    { background: rgba(245, 166, 35, 0.15); }
.icon-red       { background: rgba(226, 85, 85, 0.15); }
.icon-teal      { background: rgba(20, 200, 220, 0.15); }
.icon-whatsapp  { background: rgba(37, 211, 102, 0.15); }

/* ---------------------------------------------------------------
   10. SCREENSHOTS / DEMO SECTION
--------------------------------------------------------------- */
.screenshots-wrapper {
  position: relative;
  overflow: hidden;
}

.screenshot-tabs {
  display: flex;
  justify-content: center;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-10);
  flex-wrap: wrap;
}

.tab-btn {
  padding: var(--spacing-2) var(--spacing-5);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
  transition: all var(--transition-base);
}

.tab-btn.active,
.tab-btn:hover {
  background: rgba(91, 106, 240, 0.15);
  border-color: var(--color-primary);
  color: var(--color-primary-light);
}

.screenshot-display {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--spacing-8);
  align-items: start;
}

.screenshot-info {
  padding-top: var(--spacing-8);
}

.screenshot-info h3 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-4);
}

.screenshot-info p {
  margin-bottom: var(--spacing-6);
}

.screenshot-features {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.screenshot-feature-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.screenshot-feature-item::before {
  content: '✓';
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  min-width: 20px;
  background: rgba(0, 212, 170, 0.15);
  color: var(--color-accent);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
}

.screenshot-frame {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  aspect-ratio: 16/10;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.screenshot-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-4);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.screenshot-placeholder-icon {
  font-size: 48px;
  opacity: 0.3;
}

/* ---------------------------------------------------------------
   11. DOWNLOAD SECTION
--------------------------------------------------------------- */
.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-6);
  margin-bottom: var(--spacing-12);
}

.download-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-8);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.download-card::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--transition-base);
  border-radius: inherit;
}

.download-card:hover {
  border-color: rgba(91, 106, 240, 0.4);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.download-card.featured {
  border-color: rgba(91, 106, 240, 0.4);
  box-shadow: var(--shadow-glow);
}

.download-badge {
  position: absolute;
  top: var(--spacing-4);
  right: var(--spacing-4);
  background: var(--gradient-primary);
  color: #fff;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  padding: var(--spacing-1) var(--spacing-3);
  border-radius: var(--radius-full);
}

.download-os-icon {
  font-size: 52px;
  margin-bottom: var(--spacing-5);
  display: block;
}

.download-card h3 {
  font-size: var(--font-size-xl);
  margin-bottom: var(--spacing-2);
}

.download-card p {
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-6);
  max-width: none;
}

.download-meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--spacing-4);
}

.download-note {
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2);
}

/* ---------------------------------------------------------------
   12. TESTIMONIALS / SOCIAL PROOF
--------------------------------------------------------------- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-6);
}

.testimonial-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-8);
  transition: border-color var(--transition-base);
}

.testimonial-card:hover {
  border-color: rgba(91, 106, 240, 0.3);
}

.testimonial-stars {
  display: flex;
  gap: 2px;
  margin-bottom: var(--spacing-4);
  color: var(--color-warning);
  font-size: var(--font-size-sm);
}

.testimonial-body {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-6);
  max-width: none;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: var(--font-weight-bold);
  font-size: var(--font-size-sm);
  color: #fff;
  flex-shrink: 0;
}

.testimonial-name {
  font-weight: var(--font-weight-semibold);
  font-size: var(--font-size-sm);
}

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

/* ---------------------------------------------------------------
   13. CTA SECTION
--------------------------------------------------------------- */
.cta-section {
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(91, 106, 240, 0.15) 0%, transparent 60%);
  pointer-events: none;
}

.cta-inner {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin-inline: auto;
}

.cta-section .section-title {
  margin-bottom: var(--spacing-4);
}

.cta-section .section-description {
  margin-bottom: var(--spacing-8);
}

.cta-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--spacing-4);
}

/* ---------------------------------------------------------------
   14. FOOTER
--------------------------------------------------------------- */
.site-footer {
  background: var(--color-bg-card);
  border-top: 1px solid var(--color-border);
  padding-top: var(--spacing-16);
  padding-bottom: var(--spacing-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-12);
  margin-bottom: var(--spacing-16);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  color: var(--color-text-primary);
}

.footer-tagline {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  max-width: 30ch;
}

.footer-social {
  display: flex;
  gap: var(--spacing-3);
  margin-top: var(--spacing-2);
}

.social-link {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
  color: var(--color-text-secondary);
}

.social-link:hover {
  background: rgba(91, 106, 240, 0.15);
  border-color: rgba(91, 106, 240, 0.4);
  color: var(--color-primary-light);
  transform: translateY(-2px);
}

.footer-col h4 {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-4);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-3);
}

.footer-links a {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-text-primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-8);
  border-top: 1px solid var(--color-border);
  flex-wrap: wrap;
  gap: var(--spacing-4);
}

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

.footer-legal {
  display: flex;
  gap: var(--spacing-6);
}

.footer-legal a {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.footer-legal a:hover {
  color: var(--color-text-primary);
}

/* ---------------------------------------------------------------
   15. PRIVACY PAGE SPECIFIC STYLES
--------------------------------------------------------------- */

/* Privacy page body */
.privacy-page {
  padding-block: calc(var(--nav-height) + var(--spacing-12)) var(--spacing-24);
}

.privacy-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--spacing-12);
  align-items: start;
}

/* Sticky TOC sidebar */
.privacy-toc {
  position: sticky;
  top: calc(var(--nav-height) + var(--spacing-6));
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-6);
}

.toc-title {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-4);
}

.toc-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-1);
}

.toc-list a {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  padding: var(--spacing-2) var(--spacing-3);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
  line-height: var(--line-height-snug);
}

.toc-list a:hover,
.toc-list a.active {
  color: var(--color-primary-light);
  background: rgba(91, 106, 240, 0.1);
}

/* Privacy content */
.privacy-content {
  min-width: 0;
}

.privacy-header {
  margin-bottom: var(--spacing-12);
  padding-bottom: var(--spacing-8);
  border-bottom: 1px solid var(--color-border);
}

.privacy-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-4);
  margin-top: var(--spacing-5);
}

.privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-2);
  padding: var(--spacing-2) var(--spacing-4);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  border: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

/* Privacy sections */
.privacy-section {
  margin-bottom: var(--spacing-12);
  padding-bottom: var(--spacing-8);
  border-bottom: 1px solid var(--color-border);
  scroll-margin-top: calc(var(--nav-height) + var(--spacing-6));
}

.privacy-section:last-child {
  border-bottom: none;
}

.privacy-section-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  margin-bottom: var(--spacing-6);
}

.privacy-section-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  min-width: 36px;
  background: rgba(91, 106, 240, 0.12);
  border: 1px solid rgba(91, 106, 240, 0.25);
  border-radius: var(--radius-lg);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-light);
}

.privacy-section h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: 0;
}

.privacy-section p {
  max-width: none;
  margin-bottom: var(--spacing-4);
}

.privacy-section h3 {
  font-size: var(--font-size-lg);
  margin-top: var(--spacing-6);
  margin-bottom: var(--spacing-3);
}

.privacy-section ul,
.privacy-section ol {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-2);
  margin-bottom: var(--spacing-4);
  padding-left: var(--spacing-2);
}

.privacy-section ul li,
.privacy-section ol li {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.privacy-section ul li::before {
  content: '→';
  color: var(--color-primary-light);
  font-size: var(--font-size-xs);
  margin-top: 4px;
  flex-shrink: 0;
}

.privacy-section ol {
  counter-reset: privacy-counter;
}

.privacy-section ol li {
  counter-increment: privacy-counter;
}

.privacy-section ol li::before {
  content: counter(privacy-counter);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  min-width: 22px;
  background: rgba(91, 106, 240, 0.1);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  color: var(--color-primary-light);
  flex-shrink: 0;
}

/* Highlight/alert box */
.privacy-highlight {
  background: rgba(91, 106, 240, 0.08);
  border: 1px solid rgba(91, 106, 240, 0.2);
  border-left: 3px solid var(--color-primary);
  border-radius: var(--radius-lg);
  padding: var(--spacing-5) var(--spacing-6);
  margin-block: var(--spacing-6);
}

.privacy-highlight p {
  margin-bottom: 0;
  font-size: var(--font-size-sm);
}

/* Contact box */
.contact-box {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-8);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-4);
}

.contact-box-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
}

.contact-method {
  display: flex;
  align-items: center;
  gap: var(--spacing-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.contact-method-icon {
  font-size: var(--font-size-lg);
}

.contact-method a {
  color: var(--color-primary-light);
}

/* Data table */
.data-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border);
  margin-block: var(--spacing-6);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--font-size-sm);
}

.data-table th {
  background: rgba(91, 106, 240, 0.08);
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
  text-align: left;
  padding: var(--spacing-3) var(--spacing-4);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.data-table td {
  padding: var(--spacing-3) var(--spacing-4);
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* Back to top button */
.back-to-top {
  position: fixed;
  bottom: var(--spacing-8);
  right: var(--spacing-8);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--gradient-primary);
  color: #fff;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  font-size: var(--font-size-lg);
  transition: all var(--transition-base);
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  z-index: var(--z-raised);
  text-decoration: none;
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-to-top:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  color: #fff;
}

/* ---------------------------------------------------------------
   16. RESPONSIVE DESIGN
--------------------------------------------------------------- */

/* Large Desktop (1400px+) */
@media (min-width: 1400px) {
  :root {
    --container-max: 1320px;
  }
}

/* Tablet and below (1024px) */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: var(--spacing-12);
    text-align: center;
    padding-block: var(--spacing-8);
  }

  .hero-description {
    margin-inline: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  .preview-badges-row {
    display: none;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-8);
  }

  .screenshot-display {
    grid-template-columns: 1fr;
  }

  .screenshot-info {
    padding-top: 0;
  }

  .privacy-layout {
    grid-template-columns: 1fr;
  }

  .privacy-toc {
    position: static;
    display: none; /* Hidden on smaller screens, shown via JS toggle */
  }
}

/* Mobile/Tablet nav (1024px and below) */
@media (max-width: 1024px) {
  .nav-links,
  .nav-cta {
    display: none;
  }

  /* Stable mobile nav layout */
  .nav-inner {
    display: flex;
    align-items: center;
    justify-content: flex-start;
    padding-inline: var(--spacing-3);
    gap: var(--spacing-2);
  }

  .nav-logo {
    flex-shrink: 0;
    margin-right: auto;
  }

  .nav-logo-text {
    display: none;
  }

  .lang-mobile-inline {
    display: flex;
    margin: 0 var(--spacing-2) 0 0;
    min-width: 68px;
    justify-content: center;
  }

  .nav-toggle {
    display: flex;
    flex-shrink: 0;
  }

  /* Privacy page specific: deterministic mobile nav slots */
  .privacy-policy-page .nav-inner {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    align-items: center;
    column-gap: var(--spacing-2);
    padding-inline: var(--spacing-3);
  }

  .privacy-policy-page .nav-logo {
    grid-column: 1;
    margin-right: 0;
    min-width: 0;
  }

  .privacy-policy-page .lang-mobile-inline {
    grid-column: 3;
    display: flex !important;
    position: static;
    transform: none;
    margin: 0;
    min-width: 68px;
    overflow: visible;
  }

  .privacy-policy-page .nav-toggle {
    grid-column: 4;
    display: flex !important;
    position: static;
    transform: none;
    margin: 0;
  }

  /* Mobile nav overlay */
  .nav-mobile-menu {
    display: none;
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    bottom: 0;
    height: calc(100vh - var(--nav-height));
    background: var(--color-bg);
    z-index: calc(var(--z-sticky) - 1);
    flex-direction: column;
    padding: var(--spacing-8) var(--spacing-6);
    gap: var(--spacing-4);
    overflow-y: auto;
  }

  .nav-mobile-menu.open {
    display: flex;
  }

  .nav-mobile-menu a {
    display: block;
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-secondary);
    padding: var(--spacing-4) 0;
    border-bottom: 1px solid var(--color-border);
    transition: color var(--transition-fast);
  }

  .nav-mobile-menu a:hover {
    color: var(--color-text-primary);
  }

  .nav-mobile-menu .btn {
    margin-top: var(--spacing-4);
    width: 100%;
    font-size: var(--font-size-lg);
    padding: var(--spacing-4);
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .download-grid {
    grid-template-columns: 1fr;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-6);
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    padding-top: var(--spacing-4);
    gap: var(--spacing-1);
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: var(--spacing-6);
  }

  .back-to-top {
    bottom: var(--spacing-5);
    right: var(--spacing-5);
  }

  /* ── Compact content sizes (mobile) ── */

  /* Hero text */
  .hero-badge {
    font-size: 0.65rem;
    padding: 2px 10px 2px 8px;
    margin-bottom: var(--spacing-4);
  }

  .hero-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-4);
  }

  .hero-description {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-6);
  }

  .hero-actions {
    margin-bottom: var(--spacing-6);
  }

  .stat-value {
    font-size: var(--font-size-xl);
  }

  .stat-label {
    font-size: 0.65rem;
  }

  /* Section headers */
  .section-header {
    margin-bottom: var(--spacing-8);
  }

  .section-title {
    font-size: var(--font-size-2xl);
  }

  .section-description {
    font-size: var(--font-size-sm);
  }

  .section-eyebrow {
    font-size: 0.65rem;
    margin-bottom: var(--spacing-3);
  }

  /* Feature cards */
  .feature-card {
    padding: var(--spacing-5);
  }

  .feature-icon-wrap {
    width: 40px;
    height: 40px;
    font-size: 18px;
    margin-bottom: var(--spacing-3);
  }

  .feature-card h3 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-2);
  }

  .feature-card p {
    font-size: var(--font-size-xs);
  }

  /* Section padding */
  .section {
    padding-block: var(--spacing-10);
  }

  /* CTA section */
  .cta-section .section-title {
    font-size: var(--font-size-2xl);
  }

  .cta-section .section-description {
    font-size: var(--font-size-sm);
  }

  /* Footer */
  .site-footer {
    padding-top: var(--spacing-8);
    padding-bottom: var(--spacing-5);
  }

  .footer-brand {
    gap: var(--spacing-2);
  }

  .footer-legal {
    gap: var(--spacing-3);
  }

  .footer-tagline {
    font-size: var(--font-size-xs);
    line-height: 1.45;
  }

  .footer-col h4 {
    font-size: var(--font-size-xs);
    margin-bottom: var(--spacing-3);
  }

  .footer-col a,
  .footer-col p {
    font-size: var(--font-size-xs);
  }

  .footer-links {
    gap: var(--spacing-2);
  }

  .footer-bottom {
    font-size: 0.7rem;
    gap: var(--spacing-2);
  }

  /* Privacy page */
  .privacy-page {
    padding-block: calc(var(--nav-height) + var(--spacing-4)) var(--spacing-10);
  }

  .privacy-header {
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-4);
  }

  .privacy-section {
    margin-bottom: var(--spacing-6);
    padding-bottom: var(--spacing-4);
  }

  .privacy-section-header {
    margin-bottom: var(--spacing-3);
  }

  .privacy-section h2 {
    font-size: var(--font-size-xl);
  }

  .privacy-section h3 {
    font-size: var(--font-size-base);
  }

  .privacy-section p,
  .privacy-section li {
    font-size: var(--font-size-sm);
  }

  .privacy-section-number {
    width: 32px;
    height: 32px;
    font-size: var(--font-size-sm);
  }

  .privacy-highlight p {
    font-size: var(--font-size-xs);
  }

  .privacy-badge {
    font-size: 0.65rem;
    padding: 4px 10px;
  }

  /* Contact page */
  .contact-header h1 {
    font-size: var(--font-size-2xl);
  }

  .contact-header p {
    font-size: var(--font-size-sm);
  }

  .contact-card-label {
    font-size: 0.65rem;
  }

  .contact-card-title {
    font-size: var(--font-size-sm);
  }

  .contact-card-value {
    font-size: var(--font-size-sm);
  }

  /* Contact page spacing compact */
  .contact-page-mobile-override {
    padding-top: calc(var(--nav-height) + var(--spacing-6));
    padding-bottom: var(--spacing-10);
  }

  /* Quote page */
  .quote-info h1 {
    font-size: var(--font-size-2xl);
  }

  .quote-info p,
  .quote-info li {
    font-size: var(--font-size-sm);
  }
}

/* Extra small (480px and below) */
@media (max-width: 480px) {
  :root {
    --nav-height: 60px;
  }

  .nav-inner {
    padding-inline: var(--spacing-2);
  }

  .lang-mobile-inline {
    min-width: 60px;
    margin-right: var(--spacing-1);
  }

  .lang-mobile-inline .lang-btn {
    padding: 4px 8px;
    font-size: 0.65rem;
  }

  .nav-toggle {
    width: 32px;
    height: 32px;
  }

  .site-footer {
    padding-top: var(--spacing-6);
    padding-bottom: var(--spacing-4);
  }

  .footer-grid {
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-5);
  }

  .footer-bottom {
    padding-top: var(--spacing-3);
    gap: 2px;
  }

  .privacy-policy-page .nav-inner {
    display: grid;
    grid-template-columns: auto 1fr auto auto;
    column-gap: var(--spacing-1);
  }

  .privacy-policy-page .lang-mobile-inline {
    min-width: 58px;
    margin-right: 0;
  }

  /* Hide logo text — keep only icon so EN+hamburger fit comfortably */
  .nav-logo-text {
    display: none;
  }

  .app-content {
    grid-template-columns: 150px 1fr;
  }

  .hero-actions {
    flex-direction: column;
  }

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

  .privacy-meta {
    flex-direction: column;
  }
}

/* ---------------------------------------------------------------
   16b. PRIVACY MOBILE TOC (collapsible details/summary)
--------------------------------------------------------------- */

/* Hidden on desktop — sidebar TOC handles it */
.privacy-toc-mobile {
  display: none;
}

/* Show on tablet / mobile where sidebar is hidden */
@media (max-width: 1024px) {
  .privacy-toc-mobile {
    display: block;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-6);
    overflow: hidden;
  }

  .privacy-toc-mobile summary {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: var(--spacing-4) var(--spacing-5);
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
  }

  .privacy-toc-mobile summary::-webkit-details-marker {
    display: none;
  }

  .privacy-toc-mobile summary::after {
    content: '▾';
    font-size: 1rem;
    color: var(--color-primary-light);
    transition: transform 0.2s;
    flex-shrink: 0;
  }

  .privacy-toc-mobile[open] summary::after {
    transform: rotate(180deg);
  }

  .privacy-toc-mobile > nav {
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-3) var(--spacing-3);
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .privacy-toc-mobile > nav > ul {
    display: contents;
  }

  .privacy-toc-mobile > nav > ul > li {
    display: block;
  }

  .privacy-toc-mobile a {
    display: block;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    padding: var(--spacing-2) var(--spacing-2);
    border-radius: var(--radius-md);
    line-height: 1.4;
    transition: color 0.15s, background 0.15s;
  }

  .privacy-toc-mobile a:hover,
  .privacy-toc-mobile a:active {
    color: var(--color-primary-light);
    background: rgba(91, 106, 240, 0.08);
  }
}

/* ---------------------------------------------------------------
   17. PRINT STYLES (Privacy Policy)
--------------------------------------------------------------- */
@media print {
  .site-nav,
  .back-to-top,
  .privacy-toc,
  .site-footer {
    display: none !important;
  }

  body {
    background: #fff;
    color: #000;
    font-size: 11pt;
  }

  .privacy-page {
    padding-block: var(--spacing-6);
  }

  .privacy-layout {
    display: block;
  }

  .privacy-section {
    page-break-inside: avoid;
  }

  h2, h3 {
    page-break-after: avoid;
    color: #000;
  }

  a {
    color: #000;
    text-decoration: underline;
  }

  a[href]::after {
    content: ' (' attr(href) ')';
    font-size: 9pt;
    color: #666;
  }

  .privacy-highlight {
    border: 1px solid #ccc;
    background: #f5f5f5;
  }
}

/* ---------------------------------------------------------------
   18. ANIMATIONS & TRANSITIONS
--------------------------------------------------------------- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Respect user's reduced motion preference */
@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;
  }

  .badge-dot {
    animation: none;
  }

  .preview-badge {
    animation: none;
  }
}

/* ---------------------------------------------------------------
   19. SCROLLBAR STYLING
--------------------------------------------------------------- */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: rgba(91, 106, 240, 0.3);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(91, 106, 240, 0.5);
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(91, 106, 240, 0.3) var(--color-bg);
}

/* ---------------------------------------------------------------
   20. SELECTION
--------------------------------------------------------------- */
::selection {
  background: rgba(91, 106, 240, 0.35);
  color: var(--color-text-primary);
}