/* ==========================================================================
   CineVault — Official Product Website Styles
   Design System: Obsidian Cinema (Derived from Stitch Architecture)
   ========================================================================== */

/* 1. Global Reset & Custom Properties */
:root {
  /* Obsidian Palette */
  --bg-void: #090A0F;
  --bg-surface: #0E1017;
  --bg-surface-elevated: #161923;
  --bg-surface-card: #121318;
  --bg-surface-glass: rgba(14, 16, 23, 0.78);
  --bg-surface-glass-high: rgba(22, 25, 35, 0.88);

  /* Accents */
  --primary: #E50914;
  --primary-hover: #FF1A27;
  --primary-glow: rgba(229, 9, 20, 0.32);
  --primary-glow-subtle: rgba(229, 9, 20, 0.16);
  --primary-gradient: linear-gradient(135deg, #FF2B3D 0%, #E50914 100%);

  --gold: #D4AF37;
  --gold-glow: rgba(212, 175, 55, 0.22);
  --gold-subtle: rgba(212, 175, 55, 0.1);

  --telegram: #29A9EB;
  --telegram-glow: rgba(41, 169, 235, 0.25);
  --telegram-subtle: rgba(41, 169, 235, 0.1);

  --green: #22C55E;
  --green-glow: rgba(34, 197, 94, 0.2);
  --green-subtle: rgba(34, 197, 94, 0.1);

  /* Hairline Borders & Specular Edges */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.16);
  --border-active: rgba(255, 255, 255, 0.24);

  /* Typography Colors */
  --text-high: #F8FAFC;
  --text-muted: #94A3B8;
  --text-faint: #475569;
  --text-inverse: #090A0F;

  /* Font Families */
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'Space Grotesk', ui-monospace, SFMono-Regular, monospace;

  /* Layout */
  --container-max: 1240px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  --transition-smooth: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-family: var(--font-main);
  background-color: var(--bg-void);
  color: var(--text-high);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

body {
  background-color: var(--bg-void);
  color: var(--text-high);
  line-height: 1.6;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
  min-height: 100vh;
}

/* 2. Typography Hierarchy */
h1, h2, h3, h4 {
  font-family: var(--font-main);
  color: var(--text-high);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.025em;
}

p {
  color: var(--text-muted);
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition-smooth);
}

/* 3. Ambient Lighting & Mesh Backdrops */
.cinema-mesh-bg {
  position: relative;
  overflow: hidden;
  width: 100%;
  max-width: 100vw;
  background:
    radial-gradient(circle at 50% -5%, rgba(229, 9, 20, 0.15) 0%, rgba(9, 10, 15, 0) 60%),
    radial-gradient(circle at 85% 20%, rgba(212, 175, 55, 0.05) 0%, rgba(9, 10, 15, 0) 40%),
    radial-gradient(circle at 15% 45%, rgba(41, 169, 235, 0.04) 0%, rgba(9, 10, 15, 0) 40%);
}

.ambient-spotlight {
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 650px;
  max-width: 100vw;
  height: 350px;
  background: radial-gradient(circle, rgba(229, 9, 20, 0.18) 0%, rgba(9, 10, 15, 0) 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

/* 4. Floating Glass Navigation */
.header-wrapper {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  width: 100%;
  padding: 0 16px;
  display: flex;
  justify-content: center;
  z-index: 100;
  pointer-events: none;
}

.nav-bar {
  pointer-events: auto;
  width: 100%;
  max-width: 1140px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 18px 10px 22px;
  background: var(--bg-surface-glass);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transition: var(--transition-smooth);
}

.nav-brand {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.brand-name {
  font-family: var(--font-main);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #FFFFFF;
  display: inline-flex;
  align-items: center;
  line-height: 1;
  transition: opacity 0.2s ease;
}

.nav-brand:hover .brand-name {
  opacity: 0.9;
}

.brand-name-gold {
  background: linear-gradient(135deg, #FFDE6A 0%, #FABC36 45%, #E5901A 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--text-high);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.btn-nav-telegram {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-high);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: var(--transition-smooth);
}

.btn-nav-telegram svg {
  width: 15px;
  height: 15px;
  color: var(--telegram);
}

.btn-nav-telegram:hover {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(41, 169, 235, 0.4);
  color: #FFFFFF;
}

.btn-nav-download {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.25), 0 4px 18px var(--primary-glow);
  transition: var(--transition-smooth);
}

.btn-nav-download svg {
  width: 15px;
  height: 15px;
}

.btn-nav-download:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.3), 0 6px 24px rgba(229, 9, 20, 0.45);
}

/* 5. Layout Container */
.section-container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* 6. Hero Section */
.hero-section {
  position: relative;
  padding-top: 135px;
  padding-bottom: 70px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 48px;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 22px;
}

/* Announcement Pill */
.announcement-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  background: rgba(22, 25, 35, 0.75);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(12px);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-high);
  letter-spacing: 0.04em;
}

.pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: var(--radius-full);
  background: var(--primary);
  box-shadow: 0 0 10px var(--primary);
  animation: pulse-glow 2s infinite ease-in-out;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.hero-headline {
  font-size: clamp(2.4rem, 4.2vw, 3.75rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.035em;
  color: #FFFFFF;
}

.gradient-headline-accent {
  display: block;
  background: linear-gradient(135deg, #FF6B7A 0%, var(--primary) 65%, #FF2B3D 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: clamp(1rem, 1.2vw, 1.15rem);
  line-height: 1.65;
  color: var(--text-muted);
  max-width: 580px;
}

/* Hero CTA Row */
.hero-cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  padding-top: 4px;
}

.btn-hero-download {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 13px 26px;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: #FFFFFF;
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.28), 0 8px 30px var(--primary-glow);
  transition: var(--transition-smooth);
}

.btn-hero-download svg {
  width: 20px;
  height: 20px;
}

.btn-badge-chip {
  padding: 3px 9px;
  border-radius: var(--radius-full);
  background: rgba(0, 0, 0, 0.35);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  letter-spacing: 0.05em;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.btn-hero-download:hover {
  background: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35), 0 12px 38px rgba(229, 9, 20, 0.45);
}

.btn-hero-telegram {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 24px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-high);
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition-smooth);
}

.btn-hero-telegram svg {
  width: 18px;
  height: 18px;
  color: var(--telegram);
}

.btn-hero-telegram:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(41, 169, 235, 0.4);
  color: #FFFFFF;
  transform: translateY(-2px);
}

/* Trust Signals Row */
.trust-meta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 20px;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.trust-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.trust-item svg {
  width: 16px;
  height: 16px;
}

.trust-item.play-protect svg {
  color: var(--green);
}

.trust-item.virustotal svg {
  color: var(--gold);
}

.trust-item.checksum svg {
  color: var(--telegram);
}

/* Smartphone Mockup (Right Column) */
.hero-mockup-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-ambient-glow {
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at 50% 50%, rgba(229, 9, 20, 0.22) 0%, rgba(212, 175, 55, 0.08) 45%, transparent 70%);
  filter: blur(50px);
  pointer-events: none;
  z-index: 0;
}

.titanium-device-bezel {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 345px;
  padding: 10px;
  border-radius: 46px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.14) 0%, rgba(22, 25, 35, 0.95) 20%, #090A0F 100%);
  border: 1px solid var(--border-subtle);
  box-shadow: 0 24px 70px -12px rgba(0, 0, 0, 0.8), 0 0 50px rgba(229, 9, 20, 0.2);
}

.device-screen-frame {
  position: relative;
  border-radius: 38px;
  overflow: hidden;
  background: #000000;
  aspect-ratio: 824 / 1830;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.device-app-screenshot {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity 0.25s ease;
}

.screen-glass-glare {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.07) 0%, rgba(255, 255, 255, 0) 50%);
  pointer-events: none;
}

/* Floating Badges */
.floating-spec-badge {
  position: absolute;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-surface-glass-high);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.6);
  font-family: var(--font-mono);
}

.floating-spec-badge.badge-top-left {
  top: 18%;
  left: -24px;
  border: 1px solid rgba(212, 175, 55, 0.35);
  box-shadow: 0 8px 24px -2px var(--gold-glow);
}

.floating-spec-badge.badge-bottom-right {
  bottom: 22%;
  right: -24px;
  border: 1px solid rgba(229, 9, 20, 0.35);
  box-shadow: 0 8px 24px -2px var(--primary-glow);
}

.badge-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}

.badge-icon svg {
  width: 18px;
  height: 18px;
}

.badge-top-left .badge-icon svg {
  color: var(--gold);
}

.badge-bottom-right .badge-icon svg {
  color: var(--primary);
}

.badge-texts {
  display: flex;
  flex-direction: column;
}

.badge-title {
  font-size: 0.76rem;
  font-weight: 700;
  color: var(--text-high);
}

.badge-sub {
  font-size: 0.62rem;
  color: var(--text-muted);
}

/* 7. Performance Metrics Bar */
.metrics-section {
  padding: 30px 0 50px 0;
}

.metrics-glass-card {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 28px 36px;
  border-radius: var(--radius-xl);
  background: var(--bg-surface-glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-subtle);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
}

.metric-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 8px 12px;
  border-right: 1px solid var(--border-subtle);
}

.metric-item:last-child {
  border-right: none;
}

.metric-number {
  font-family: var(--font-main);
  font-size: clamp(2rem, 3vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #FFFFFF;
}

.metric-number.highlight-gold {
  color: var(--gold);
}

.metric-number.highlight-primary {
  color: var(--primary);
}

.metric-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-top: 4px;
}

/* 8. Core Capabilities (Bento Grid) */
.section-header-center {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 48px auto;
}

.section-pill-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gold);
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(1.8rem, 2.8vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 0.98rem;
  color: var(--text-muted);
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.bento-card {
  position: relative;
  padding: 30px;
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  transition: var(--transition-smooth);
}

.bento-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.5);
}

.bento-icon-box {
  width: 46px;
  height: 46px;
  border-radius: var(--radius-md);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: var(--transition-smooth);
}

.bento-icon-box svg {
  width: 22px;
  height: 22px;
}

.bento-card:hover .bento-icon-box {
  border-color: rgba(255, 255, 255, 0.25);
}

.bento-card:nth-child(1) .bento-icon-box svg,
.bento-card:nth-child(3) .bento-icon-box svg,
.bento-card:nth-child(5) .bento-icon-box svg {
  color: var(--gold);
}

.bento-card:nth-child(2) .bento-icon-box svg,
.bento-card:nth-child(4) .bento-icon-box svg,
.bento-card:nth-child(6) .bento-icon-box svg {
  color: var(--primary);
}

.bento-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.bento-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-high);
}

.bento-tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.bento-tag.tag-gold {
  background: var(--gold-subtle);
  color: var(--gold);
  border: 1px solid rgba(212, 175, 55, 0.3);
}

.bento-tag.tag-primary {
  background: var(--primary-glow-subtle);
  color: var(--primary);
  border: 1px solid rgba(229, 9, 20, 0.3);
}

.bento-tag.tag-muted {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  border: 1px solid var(--border-subtle);
}

.bento-body {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--text-muted);
}

/* 9. Interactive App Screen Showcase */
.showcase-section {
  padding: 80px 0;
  border-top: 1px solid var(--border-subtle);
}

.showcase-layout {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 48px;
  align-items: center;
}

.showcase-info {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.showcase-tabs-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 12px;
}

.showcase-tab-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-family: var(--font-main);
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.tab-btn-content {
  display: flex;
  align-items: center;
  gap: 12px;
}

.tab-btn-content svg {
  width: 18px;
  height: 18px;
}

.showcase-tab-btn:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--border-hover);
  color: var(--text-high);
}

.showcase-tab-btn.active {
  background: var(--bg-surface-elevated);
  border-color: rgba(229, 9, 20, 0.45);
  color: #FFFFFF;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.showcase-tab-btn.active .tab-btn-content svg {
  color: var(--primary);
}

.showcase-tab-btn .tab-arrow {
  width: 14px;
  height: 14px;
  opacity: 0.4;
  transition: var(--transition-smooth);
}

.showcase-tab-btn.active .tab-arrow {
  opacity: 1;
  color: var(--primary);
  transform: translateX(3px);
}

/* Showcase Screen Display Card */
.showcase-display-card {
  position: relative;
  border-radius: var(--radius-xl);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 24px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

.showcase-display-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 14px;
  margin-bottom: 20px;
}

.showcase-view-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-high);
}

.view-indicator-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--primary);
}

.showcase-spec-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--gold);
}

.showcase-preview-frame {
  position: relative;
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
  border-radius: 28px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  aspect-ratio: 824 / 1830;
  background: #000000;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.7);
  cursor: pointer;
}

.showcase-preview-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: opacity 0.25s ease, transform 0.35s ease;
}

.showcase-preview-frame:hover .showcase-preview-img {
  transform: scale(1.02);
}

.zoom-hint-overlay {
  position: absolute;
  bottom: 14px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  background: rgba(14, 16, 23, 0.88);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border-subtle);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: #FFFFFF;
  white-space: nowrap;
  pointer-events: none;
}

.zoom-hint-overlay svg {
  width: 12px;
  height: 12px;
}

/* 10. Verified Safety & Trust Section */
.security-section {
  padding: 80px 0;
  border-top: 1px solid var(--border-subtle);
}

.security-glass-box {
  position: relative;
  border-radius: var(--radius-xl);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  padding: 44px;
  overflow: hidden;
}

.security-corner-glow {
  position: absolute;
  top: 0;
  right: 0;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(229, 9, 20, 0.12) 0%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
}

.security-header {
  max-width: 640px;
  margin-bottom: 36px;
}

.security-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.security-card {
  padding: 24px;
  border-radius: var(--radius-lg);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.security-card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.security-card-top svg {
  width: 24px;
  height: 24px;
}

.security-card:nth-child(1) .security-card-top svg {
  color: var(--green);
}

.security-card:nth-child(2) .security-card-top svg {
  color: var(--telegram);
}

.security-card:nth-child(3) .security-card-top svg {
  color: var(--gold);
}

.security-status-badge {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 2px 7px;
  border-radius: 4px;
}

.status-green {
  background: var(--green-subtle);
  color: var(--green);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.status-cyan {
  background: var(--telegram-subtle);
  color: var(--telegram);
  border: 1px solid rgba(41, 169, 235, 0.3);
}

.status-gold {
  background: var(--gold-subtle);
  color: var(--gold);
  border: 1px solid rgba(212, 175, 55, 0.3);
}

.security-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-high);
}

.security-card-body {
  font-size: 0.85rem;
  line-height: 1.6;
  color: var(--text-muted);
}

/* SHA-256 Checksum Container */
.checksum-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 24px;
  border-radius: var(--radius-md);
  background: #06070B;
  border: 1px solid var(--border-subtle);
}

.checksum-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow: hidden;
}

.checksum-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.checksum-hash {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--gold);
  word-break: break-all;
  user-select: all;
}

.btn-copy-hash {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  color: var(--text-high);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: var(--transition-smooth);
}

.btn-copy-hash svg {
  width: 14px;
  height: 14px;
}

.btn-copy-hash:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--border-hover);
}

/* 11. 3-Step Sideload Installation */
.install-section {
  padding: 80px 0;
  border-top: 1px solid var(--border-subtle);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.step-card {
  padding: 32px;
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.step-num-pill {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  font-weight: 800;
}

.step-card:nth-child(1) .step-num-pill {
  background: var(--primary);
  color: #FFFFFF;
}

.step-card:nth-child(2) .step-num-pill {
  background: var(--bg-surface-elevated);
  color: var(--gold);
  border: 1px solid rgba(212, 175, 55, 0.3);
}

.step-card:nth-child(3) .step-num-pill {
  background: var(--bg-surface-elevated);
  color: var(--green);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.step-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-high);
}

.step-body {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--text-muted);
}

/* 12. Technical Specifications Table */
.specs-section {
  padding: 80px 0;
  border-top: 1px solid var(--border-subtle);
}

.specs-table-wrapper {
  max-width: 800px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.4);
}

.specs-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.specs-table tr {
  border-bottom: 1px solid var(--border-subtle);
  transition: background 0.15s ease;
}

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

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

.specs-table td {
  padding: 16px 24px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.specs-key {
  color: var(--text-muted);
  font-weight: 500;
  width: 40%;
}

.specs-val {
  color: var(--text-high);
  font-weight: 600;
}

.specs-val.val-gold {
  color: var(--gold);
}

/* 13. Bottom Conversion Box */
.conversion-section {
  padding: 80px 0;
  border-top: 1px solid var(--border-subtle);
}

.conversion-card {
  position: relative;
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, var(--bg-surface-elevated) 0%, #08090E 100%);
  border: 1px solid rgba(255, 255, 255, 0.12);
  padding: 56px 32px;
  text-align: center;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
}

.conversion-spotlight {
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 250px;
  background: radial-gradient(circle, rgba(229, 9, 20, 0.22) 0%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
}

.conversion-content {
  position: relative;
  z-index: 1;
  max-width: 620px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.conversion-brand-emblem {
  display: flex;
  justify-content: center;
  margin-bottom: 6px;
}

.conversion-logo-img {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  object-fit: cover;
  box-shadow: 0 8px 24px rgba(250, 188, 54, 0.3), 0 0 30px rgba(229, 9, 20, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.conversion-title {
  font-size: clamp(1.8rem, 2.5vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #FFFFFF;
}

.conversion-sub {
  font-size: 0.95rem;
  color: var(--text-muted);
}

.conversion-btn-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding-top: 10px;
}

.conversion-meta {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--text-faint);
  margin-top: 6px;
}

/* 14. Official Footer */
.official-footer {
  border-top: 1px solid var(--border-subtle);
  background: #06070B;
  padding: 48px 0 36px 0;
}

.footer-top-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 28px;
  margin-bottom: 28px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.footer-nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 22px;
}

.footer-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--text-high);
}

.footer-bottom-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 0.82rem;
  color: var(--text-faint);
}

.footer-version-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
}

.version-dot {
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: var(--green);
}

/* 15. Lightbox Modal */
.lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(6, 7, 11, 0.94);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  transition: opacity 0.25s ease;
}

.lightbox-modal.active {
  display: flex;
  opacity: 1;
}

.lightbox-container {
  position: relative;
  max-width: 420px;
  max-height: 90vh;
  border-radius: 36px;
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  background: #000000;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.8);
}

.lightbox-img {
  width: 100%;
  height: auto;
  max-height: 90vh;
  object-fit: contain;
  display: block;
}

.btn-close-lightbox {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: rgba(14, 16, 23, 0.85);
  border: 1px solid var(--border-subtle);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 10;
  transition: var(--transition-smooth);
}

.btn-close-lightbox:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: scale(1.08);
}

/* 16. Toast Notification */
.toast-notice {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  z-index: 300;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  border-radius: var(--radius-full);
  background: var(--bg-surface-glass-high);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  color: #FFFFFF;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.6);
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
  pointer-events: none;
}

.toast-notice.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* 17. Responsive Media Queries */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 50px;
    text-align: center;
  }

  .hero-content {
    align-items: center;
  }

  .hero-cta-row {
    justify-content: center;
  }

  .trust-meta-row {
    justify-content: center;
  }

  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .showcase-layout {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .showcase-info {
    align-items: center;
  }

  .security-cards-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 768px) {
  .desktop-only-text {
    display: none;
  }

  .header-wrapper {
    top: 12px;
    padding: 0 12px;
  }

  .nav-bar {
    padding: 6px 10px 6px 12px;
    width: 100%;
    border-radius: var(--radius-full);
  }

  .nav-brand {
    flex-shrink: 0;
  }

  .brand-name {
    font-size: 1.12rem;
  }

  .nav-links {
    display: none;
  }

  .nav-actions {
    gap: 6px;
    flex-shrink: 0;
  }

  .btn-nav-telegram span {
    display: none;
  }

  .btn-nav-telegram {
    padding: 6px 9px;
    flex-shrink: 0;
  }

  .btn-nav-download {
    padding: 6px 12px;
    font-size: 0.74rem;
    font-weight: 700;
    gap: 5px;
    flex-shrink: 0;
  }

  .announcement-pill {
    font-size: 0.72rem;
    padding: 6px 14px;
    max-width: 95%;
    text-align: center;
  }

  .hero-headline {
    font-size: clamp(2rem, 7.5vw, 2.5rem);
    text-align: center;
  }

  .hero-description {
    text-align: center;
  }

  .hero-content {
    align-items: center;
    text-align: center;
  }

  .hero-cta-row {
    justify-content: center;
  }

  .trust-meta-row {
    justify-content: center;
    gap: 12px;
    font-size: 0.72rem;
  }

  .metrics-glass-card {
    grid-template-columns: repeat(2, 1fr);
    padding: 20px 14px;
    gap: 16px;
  }

  .metric-number {
    font-size: 1.85rem;
  }

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

  .metric-item {
    border-right: none;
  }

  .metric-item:nth-child(odd) {
    border-right: 1px solid var(--border-subtle);
  }

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

  .floating-spec-badge {
    display: none;
  }

  .checksum-container {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .footer-top-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-bottom-row {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .hero-headline {
    font-size: 2.15rem;
  }

  .btn-hero-download,
  .btn-hero-telegram {
    width: 100%;
    justify-content: center;
  }

  .conversion-btn-row .btn-hero-download,
  .conversion-btn-row .btn-hero-telegram {
    width: 100%;
    justify-content: center;
  }
}