/* ============================================
   YAMS LANDING PAGE — STYLES
   ============================================ */

:root {
  --bg: #0A0A0F;
  --surface: #121218;
  --surface-variant: #1A1A24;
  --surface-bright: #252530;
  --border: #2A2A3A;
  --border-bright: #3A3A4F;
  --text-primary: #F0F0F5;
  --text-secondary: #8888AA;
  --text-tertiary: #666680;
  --primary: #8B5CF6;
  --primary-light: #A78BFA;
  --primary-dark: #7C3AED;
  --secondary: #06B6D4;
  --secondary-light: #22D3EE;
  --tertiary: #EC4899;
  --success: #10B981;
  --warning: #F59E0B;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

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

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
   NAVIGATION
   ============================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(10, 10, 15, 0.8);
  border-bottom: 1px solid rgba(42, 42, 58, 0.5);
  transition: background 0.3s ease;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-icon {
  font-size: 1.5rem;
}

.logo-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -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 0.2s ease;
}

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

.nav-cta {
  padding: 8px 20px !important;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: var(--radius);
  color: white !important;
  font-weight: 600 !important;
  transition: transform 0.2s ease, box-shadow 0.2s ease !important;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: 0.3s ease;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px 24px;
  flex-direction: column;
  gap: 16px;
  z-index: 99;
}

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

.mobile-menu a {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 0;
}

/* ============================================
   HERO SECTION
   ============================================ */

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  padding: 120px 24px 80px;
  position: relative;
  gap: 60px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.gradient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.15;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: var(--primary);
  top: -100px;
  right: -100px;
  animation: float 15s ease-in-out infinite;
}

.orb-2 {
  width: 500px;
  height: 500px;
  background: var(--secondary);
  bottom: -50px;
  left: -100px;
  animation: float 20s ease-in-out infinite reverse;
}

.orb-3 {
  width: 400px;
  height: 400px;
  background: var(--tertiary);
  top: 40%;
  left: 30%;
  animation: float 18s ease-in-out infinite 5s;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 700px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--primary-light);
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease-out;
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease-out 0.1s both;
}

.gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--secondary), var(--tertiary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  background-size: 200% 200%;
  animation: gradientShift 8s ease-in-out infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.7;
  animation: fadeInUp 0.6s ease-out 0.2s both;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease-out 0.3s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.25s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: 0 4px 24px rgba(139, 92, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(139, 92, 246, 0.5);
}

.btn-secondary {
  background: var(--surface-variant);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

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

.hero-platforms {
  margin-top: 20px;
  font-size: 0.85rem;
  color: var(--text-tertiary);
  animation: fadeInUp 0.6s ease-out 0.4s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* App Mockup */
.hero-visual {
  position: relative;
  animation: fadeInUp 0.8s ease-out 0.5s both;
  width: 100%;
  max-width: 900px;
}

.app-mockup {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.03),
    0 20px 60px rgba(0,0,0,0.5),
    0 0 120px rgba(139, 92, 246, 0.08);
}

.mockup-header {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background: var(--surface-variant);
  border-bottom: 1px solid var(--border);
  gap: 12px;
}

.mockup-dots {
  display: flex;
  gap: 6px;
}

.mockup-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.mockup-dots span:nth-child(1) { background: #EF4444; }
.mockup-dots span:nth-child(2) { background: #F59E0B; }
.mockup-dots span:nth-child(3) { background: #10B981; }

.mockup-title {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.mockup-body {
  display: flex;
  flex-direction: column;
  min-height: 260px;
}

.mc-header {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 24px;
}

.mockup-content {
  flex: 1;
  padding: 24px;
  overflow: hidden;
}

.mc-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.mc-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.mc-card {
  background: var(--surface-variant);
  border-radius: 8px;
  overflow: hidden;
  cursor: default;
  transition: transform 0.2s, background 0.2s;
}

.mc-card:hover {
  transform: scale(1.03);
  background: var(--surface-bright);
}

.mc-art {
  width: 100%;
  aspect-ratio: 1;
  background: linear-gradient(135deg, var(--card-color), color-mix(in srgb, var(--card-color) 50%, black));
}

.mc-info {
  padding: 8px 10px;
}

.mc-name {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mc-artist {
  font-size: 0.65rem;
  color: var(--text-tertiary);
  margin-top: 2px;
}

.mockup-player {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 16px;
  background: var(--surface-variant);
  border-top: 1px solid var(--border);
}

.player-track {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 200px;
}

.player-art {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--primary), var(--tertiary));
  flex-shrink: 0;
}

.player-info {
  overflow: hidden;
}

.player-name {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-primary);
}

.player-artist {
  font-size: 0.65rem;
  color: var(--text-tertiary);
}

.player-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.play-btn {
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--text-primary);
  color: var(--bg);
  border-radius: 50%;
  font-size: 0.7rem;
}

.player-progress {
  flex: 1;
}

.progress-bar {
  height: 3px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}

.progress-fill {
  width: 35%;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 3px;
  animation: progressAnim 12s linear infinite;
}

@keyframes progressAnim {
  0% { width: 0%; }
  100% { width: 100%; }
}

.progress-time {
  display: flex;
  justify-content: space-between;
  font-size: 0.6rem;
  color: var(--text-tertiary);
  margin-top: 4px;
}

.mockup-bottom-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 40px;
  padding: 12px 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: var(--text-secondary);
  cursor: default;
  transition: color 0.2s;
}

.nav-item.active {
  color: var(--primary-light);
}

.ni-icon {
  font-size: 1.2rem;
}

.ni-text {
  font-size: 0.65rem;
  font-weight: 500;
}

/* ============================================
   FEATURES SECTION
   ============================================ */

.features {
  padding: 120px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin: 0 auto;
}

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

.feature-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s ease;
}

.feature-card:hover {
  border-color: var(--border-bright);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--icon-color) 12%, transparent);
  border-radius: var(--radius);
  margin-bottom: 20px;
  color: var(--icon-color);
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================
   DOWNLOAD SECTION
   ============================================ */

.download {
  padding: 120px 0;
  background: linear-gradient(180deg, transparent, rgba(139, 92, 246, 0.03), transparent);
}

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

.download-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 24px;
  transition: all 0.3s ease;
  cursor: pointer;
}

.download-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(139, 92, 246, 0.15);
}

.download-icon {
  color: var(--text-secondary);
  margin-bottom: 20px;
  transition: color 0.3s ease;
}

.download-card:hover .download-icon {
  color: var(--primary-light);
}

.card-web .download-icon {
  color: var(--secondary);
}

.download-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 6px;
}

.download-card p {
  font-size: 0.85rem;
  color: var(--text-tertiary);
  margin-bottom: 20px;
}

.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--surface-variant);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: all 0.2s ease;
}

.download-card:hover .download-btn {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-color: transparent;
  color: white;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}

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

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
}

.footer-text {
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .mobile-menu-btn {
    display: flex;
  }

  .hero {
    padding: 100px 24px 60px;
    gap: 40px;
  }

  .hero-title {
    font-size: 2.2rem;
  }

  .hero-subtitle {
    font-size: 1rem;
  }

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

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

  .mockup-sidebar {
    display: none;
  }

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

  .player-track {
    flex: 0 0 140px;
  }

  .player-progress {
    display: none;
  }

  .footer-content {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .download-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

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

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

/* ============================================
   SCROLL ANIMATIONS
   ============================================ */

.feature-card,
.download-card {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.feature-card.visible,
.download-card.visible {
  opacity: 1;
  transform: translateY(0);
}
/* ============================================
   LANGUAGE SELECTOR
   ============================================ */

.lang-selector {
  margin-left: 12px;
}

#lang-switch {
  appearance: none;
  -webkit-appearance: none;
  background-color: rgba(255, 255, 255, 0.08);
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 14px;
  backdrop-filter: blur(8px);
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 6px 30px 6px 12px;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  outline: none;
  transition: all 0.2s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

#lang-switch:hover {
  background-color: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}

#lang-switch option {
  background: var(--surface);
  color: var(--text-primary);
}

.mobile-lang {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

#mobile-lang-switch {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.05);
  background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23ffffff' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  color: var(--text-primary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 12px 36px 12px 14px;
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  outline: none;
  transition: background-color 0.2s, border-color 0.2s;
}

#mobile-lang-switch:active {
  background-color: rgba(255, 255, 255, 0.1);
}

#mobile-lang-switch option {
  background: var(--surface);
  color: var(--text-primary);
}