/* ============================================
   MVPlayer Official Website - Design System
   Theme: Neon Pulse (Dark Cinematic Audio)
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --bg-deep: #050508;
  --bg-surface: #0c0c12;
  --bg-elevated: #14141e;
  --bg-glass: rgba(18, 18, 28, 0.65);
  --border-subtle: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(29, 185, 84, 0.3);

  --accent: #1DB954;
  --accent-soft: rgba(29, 185, 84, 0.15);
  --accent-glow: rgba(29, 185, 84, 0.4);
  --accent-dim: #17a34a;

  --text-primary: #f0f0f5;
  --text-secondary: #9a9aab;
  --text-muted: #5a5a6e;

  --gradient-hero: linear-gradient(165deg, #0a0a14 0%, #050508 40%, #080810 100%);
  --gradient-accent: linear-gradient(135deg, #1DB954 0%, #1ed760 50%, #1aa34a 100%);
  --gradient-card: linear-gradient(145deg, rgba(29, 185, 84, 0.08) 0%, transparent 60%);
  --gradient-purple-glow: radial-gradient(ellipse 600px 400px at 70% 20%, rgba(88, 28, 135, 0.15), transparent);
  --gradient-green-glow: radial-gradient(ellipse 500px 350px at 30% 80%, rgba(29, 185, 84, 0.1), transparent);

  --font-display: 'Sora', 'Noto Sans SC', sans-serif;
  --font-body: 'Plus Jakarta Sans', 'Noto Sans SC', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;

  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--border-subtle);
  --shadow-glow: 0 0 40px rgba(29, 185, 84, 0.15);
  --shadow-elevated: 0 12px 48px rgba(0, 0, 0, 0.5);

  --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  position: relative;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    var(--gradient-purple-glow),
    var(--gradient-green-glow);
  pointer-events: none;
  z-index: 0;
}

/* Noise texture overlay */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
ul, ol { list-style: none; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all 0.4s var(--transition-smooth);
}

.navbar.scrolled {
  background: rgba(5, 5, 8, 0.85);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-bottom: 1px solid var(--border-subtle);
  padding: 10px 0;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.nav-logo .logo-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--gradient-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 4px 16px rgba(29, 185, 84, 0.3);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.25s ease;
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  transition: width 0.3s var(--transition-smooth);
  border-radius: 1px;
}

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

.nav-cta {
  padding: 9px 22px;
  background: var(--gradient-accent);
  color: #fff !important;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.875rem;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  box-shadow: 0 4px 16px rgba(29, 185, 84, 0.25);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(29, 185, 84, 0.4);
}

.nav-cta::after { display: none; }

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
  background: none;
  border: none;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(29, 185, 84, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 185, 84, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black, transparent);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-text {
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--accent-soft);
  border: 1px solid rgba(29, 185, 84, 0.2);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 28px;
  animation: fadeInUp 0.6s ease forwards;
  opacity: 0;
}

.hero-badge .badge-dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 5.5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  animation: fadeInUp 0.6s 0.1s ease forwards;
  opacity: 0;
}

.hero h1 .line-block {
  display: block;
}

.hero h1 .highlight {
  position: relative;
  display: inline-block;
}

.hero h1 .highlight-text {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 480px;
  margin-bottom: 40px;
  animation: fadeInUp 0.6s 0.2s ease forwards;
  opacity: 0;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  animation: fadeInUp 0.6s 0.3s ease forwards;
  opacity: 0;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 32px;
  background: var(--gradient-accent);
  color: #fff;
  border-radius: 100px;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: all 0.3s var(--transition-smooth);
  box-shadow: 0 8px 32px rgba(29, 185, 84, 0.3);
  position: relative;
  overflow: hidden;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(29, 185, 84, 0.45);
}

.btn-primary:hover::before { opacity: 1; }

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 32px;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--text-primary);
  border-radius: 100px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all 0.3s var(--transition-smooth);
}

.btn-secondary:hover {
  background: var(--bg-elevated);
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.btn-secondary svg { opacity: 0.7; }

/* Hero Visual - Equalizer + App Preview */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeInRight 0.8s 0.3s ease forwards;
  opacity: 0;
}

.app-preview-wrapper {
  position: relative;
  width: 100%;
  max-width: 480px;
}

.app-preview-frame {
  background: var(--bg-elevated);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-subtle);
  overflow: hidden;
  box-shadow: var(--shadow-elevated), var(--shadow-glow);
  position: relative;
}

.app-preview-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--border-subtle);
}

.window-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.window-dot.red { background: #ff5f57; }
.window-dot.yellow { background: #febc2e; }
.window-dot.green { background: #28c840; }

.app-preview-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.preview-song-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 14px;
  background: var(--accent-soft);
  border-radius: var(--radius-md);
  border: 1px solid rgba(29, 185, 84, 0.15);
}

.preview-cover {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: linear-gradient(135deg, #2a2a3e, #1a1a28);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.preview-cover svg { color: var(--accent); opacity: 0.6; }

.preview-song-info { flex: 1; min-width: 0; }

.preview-song-title {
  font-weight: 600;
  font-size: 0.875rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.preview-song-artist {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.preview-playing-indicator {
  display: flex;
  align-items: flex-end;
  gap: 2.5px;
  height: 18px;
}

.preview-bar {
  width: 3px;
  background: var(--accent);
  border-radius: 2px;
  animation: equalizer-bar 0.8s ease-in-out infinite;
}

.preview-bar:nth-child(1) { height: 40%; animation-delay: 0s; }
.preview-bar:nth-child(2) { height: 80%; animation-delay: 0.15s; }
.preview-bar:nth-child(3) { height: 55%; animation-delay: 0.3s; }
.preview-bar:nth-child(4) { height: 90%; animation-delay: 0.1s; }
.preview-bar:nth-child(5) { height: 35%; animation-delay: 0.25s; }

@keyframes equalizer-bar {
  0%, 100% { transform: scaleY(1); }
  50% { transform: scaleY(0.4); }
}

.preview-progress {
  display: flex;
  align-items: center;
  gap: 10px;
}

.progress-track {
  flex: 1;
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 4px;
  overflow: hidden;
}

.progress-fill {
  width: 65%;
  height: 100%;
  background: var(--gradient-accent);
  border-radius: 4px;
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent-glow);
}

.progress-time {
  font-size: 0.72rem;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  min-width: 36px;
}

.preview-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.ctrl-btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
}

.ctrl-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.ctrl-btn.play-btn {
  width: 48px;
  height: 48px;
  background: var(--gradient-accent);
  border: none;
  color: #fff;
  box-shadow: 0 4px 16px rgba(29, 185, 84, 0.3);
}

.ctrl-btn.play-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 24px rgba(29, 185, 84, 0.45);
}

/* Floating glow orb behind preview */
.hero-orb {
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(29, 185, 84, 0.12), transparent 70%);
  filter: blur(40px);
  z-index: -1;
  animation: float-orb 8s ease-in-out infinite;
}

@keyframes float-orb {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(-20px, 20px); }
}

/* Hero stats row */
.hero-stats {
  display: flex;
  gap: 36px;
  margin-top: 44px;
  animation: fadeInUp 0.6s 0.4s ease forwards;
  opacity: 0;
}

.stat-item {
  text-align: left;
}

.stat-value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-primary);
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ============================================
   SECTION COMMON
   ============================================ */
.section {
  padding: 120px 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: var(--accent-soft);
  border-radius: 100px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 18px;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-header p {
  font-size: 1.075rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* Scroll reveal animations */
.reveal {
  opacity: 0;
  transform: translateY(36px);
  transition: opacity 0.7s var(--transition-smooth), transform 0.7s var(--transition-smooth);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ============================================
   FEATURES SECTION (Desktop)
   ============================================ */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  transition: all 0.4s var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-card);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.feature-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-elevated);
}

.feature-card:hover::before { opacity: 1; }

.feature-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  position: relative;
  z-index: 1;
}

.feature-icon-wrap svg {
  width: 26px;
  height: 26px;
  color: var(--accent);
}

.feature-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
}

.feature-card p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  position: relative;
  z-index: 1;
}

/* Feature card accent border on hover */
.feature-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-accent);
  transform: scaleX(0);
  transition: transform 0.4s var(--transition-smooth);
}

.feature-card:hover::after { transform: scaleX(1); }

/* ============================================
   ANDROID / PLATFORM SECTION
   ============================================ */
.platform-section {
  background: var(--bg-surface);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.platform-showcase {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.platform-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.phone-mockup {
  width: 280px;
  height: 560px;
  background: #1a1a26;
  border-radius: 40px;
  border: 3px solid #2a2a38;
  padding: 12px;
  position: relative;
  box-shadow:
    0 40px 80px rgba(0, 0, 0, 0.5),
    inset 0 0 0 1px rgba(255, 255, 255, 0.04);
}

.phone-notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 26px;
  background: #0a0a0f;
  border-radius: 0 0 16px 16px;
  z-index: 2;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: var(--bg-deep);
  border-radius: 30px;
  overflow: hidden;
  position: relative;
}

.phone-screen-content {
  padding: 48px 16px 16px;
  height: 100%;
  display: flex;
  flex-direction: column;
}

.phone-status-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.68rem;
  color: var(--text-muted);
  padding: 0 4px 20px;
}

.phone-app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.phone-app-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
}

.phone-mini-player {
  background: var(--bg-elevated);
  border-radius: 16px;
  padding: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: auto;
  border: 1px solid var(--border-subtle);
}

.phone-mini-cover {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, #1DB954, #17a34a);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.phone-mini-info { flex: 1; min-width: 0; }

.phone-mini-name {
  font-size: 0.78rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.phone-mini-artist {
  font-size: 0.68rem;
  color: var(--text-muted);
}

.phone-mini-play {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.phone-mini-play svg { color: #fff; width: 14px; }

/* Floating phone decoration elements */
.phone-float-element {
  position: absolute;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
  box-shadow: var(--shadow-card);
  animation: float-element 6s ease-in-out infinite;
}

.phone-float-element.feat-1 {
  top: 15%;
  right: -20px;
  animation-delay: 0s;
}

.phone-float-element.feat-2 {
  bottom: 25%;
  left: -30px;
  animation-delay: 2s;
}

.phone-float-element .feat-icon {
  width: 24px;
  height: 24px;
  border-radius: 8px;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}

.phone-float-element .feat-icon svg {
  width: 13px;
  height: 13px;
  color: var(--accent);
}

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

/* Platform info side */
.platform-info h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: 20px;
}

.platform-info > p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
}

.platform-feature-list {
  display: flex;
  flex-direction: column;
  gap: 18px;
  margin-bottom: 40px;
}

.pf-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.pf-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--accent-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.pf-icon svg {
  width: 17px;
  height: 17px;
  color: var(--accent);
}

.pf-text h4 {
  font-weight: 700;
  font-size: 0.98rem;
  margin-bottom: 3px;
}

.pf-text p {
  font-size: 0.86rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ============================================
   QUALITY SHOWCASE
   ============================================ */
.quality-section {}

.quality-showcase {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.quality-card {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all 0.4s var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.quality-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.quality-card.featured {
  background: linear-gradient(145deg, rgba(29, 185, 84, 0.1), rgba(29, 185, 84, 0.02));
  border-color: rgba(29, 185, 84, 0.2);
}

.quality-card.featured .quality-badge {
  display: inline-block;
  padding: 3px 10px;
  background: var(--gradient-accent);
  border-radius: 100px;
  font-size: 0.68rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.quality-tier {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.quality-card.featured .quality-tier {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.quality-detail {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.quality-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ============================================
   DOWNLOAD / CTA SECTION
   ============================================ */
.cta-section {
  text-align: center;
  position: relative;
}

.cta-box {
  background: var(--bg-glass);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  padding: 72px 48px;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(29, 185, 84, 0.1), transparent);
  pointer-events: none;
}

.cta-box h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3.5vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 16px;
  position: relative;
}

.cta-box p {
  font-size: 1.075rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto 40px;
  position: relative;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  position: relative;
}

.cta-download-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 32px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.3s var(--transition-smooth);
  text-decoration: none;
  min-width: 200px;
}

.cta-download-btn:hover {
  border-color: var(--border-hover);
  background: var(--bg-surface);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.cta-download-btn .dl-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.cta-download-btn .dl-icon.win { background: #0078D4; }
.cta-download-btn .dl-icon.android { background: #3DDC84; }

.cta-download-btn .dl-info { text-align: left; }

.cta-download-btn .dl-platform {
  font-weight: 700;
  font-size: 0.95rem;
}

.cta-download-btn .dl-version {
  font-size: 0.76rem;
  color: var(--text-muted);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 60px 0 32px;
  border-top: 1px solid var(--border-subtle);
  position: relative;
  z-index: 1;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand .nav-logo { margin-bottom: 16px; }
.footer-brand p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.65;
  max-width: 300px;
}

.footer-col h4 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 18px;
  color: var(--text-primary);
}

.footer-col ul { display: flex; flex-direction: column; gap: 10px; }

.footer-col ul li a {
  font-size: 0.86rem;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.footer-col ul li a:hover { color: var(--accent); }

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

.footer-copyright {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  gap: 12px;
}

.social-link {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.25s ease;
}

.social-link:hover {
  background: var(--accent-soft);
  border-color: rgba(29, 185, 84, 0.2);
  color: var(--accent);
  transform: translateY(-2px);
}

.social-link svg { width: 17px; height: 17px; }

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes fadeInLeft {
  from { opacity: 0; transform: translateX(-40px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
  .hero-content { gap: 48px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .quality-showcase { grid-template-columns: repeat(2, 1fr); }
  .platform-showcase { gap: 48px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }

  .hero { padding: 100px 0 60px; min-height: auto; }
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-desc { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; flex-wrap: wrap; }
  .hero-stats { justify-content: center; }
  .hero-visual { order: -1; }
  .app-preview-wrapper { max-width: 360px; margin: 0 auto; }

  .features-grid { grid-template-columns: 1fr; }
  .platform-showcase {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .platform-visual { order: -1; }
  .phone-float-element { display: none; }
  .quality-showcase { grid-template-columns: 1fr 1fr; }
  .cta-box { padding: 48px 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 16px; text-align: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .section { padding: 80px 0; }
  .quality-showcase { grid-template-columns: 1fr; }
  .btn-primary, .btn-secondary { padding: 13px 24px; font-size: 0.92rem; }
  .hero-stats { gap: 24px; }
}