/* ============================================
   Mint - Vinyl Record Identifier
   Landing Page Styles
   ============================================ */

:root {
  --bg-primary: #0D0D0F;
  --bg-secondary: #141418;
  --bg-card: #1A1A1F;
  --bg-card-hover: #222228;
  --accent: #4BB8E8;
  --accent-dim: rgba(75, 184, 232, 0.15);
  --accent-glow: rgba(75, 184, 232, 0.3);
  --text-primary: #F0F0F2;
  --text-secondary: #9A9AA0;
  --text-muted: #6A6A72;
  --border: rgba(255, 255, 255, 0.08);
  --border-light: rgba(255, 255, 255, 0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --max-width: 1120px;
  --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', system-ui, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: opacity var(--transition);
}

a:hover {
  opacity: 0.8;
}

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

/* ============================================
   Navigation
   ============================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 24px;
  transition: background var(--transition), box-shadow var(--transition);
}

.nav.scrolled {
  background: rgba(13, 13, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.02em;
}

.nav-logo {
  width: 32px;
  height: 32px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--text-primary);
  opacity: 1;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: #000 !important;
  padding: 8px 18px;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  transition: transform var(--transition), box-shadow var(--transition);
}

.nav-cta:hover {
  opacity: 1 !important;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-mobile-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  margin: 5px 0;
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -40%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--accent-dim) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 720px;
  z-index: 1;
}

.hero-icon {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  margin: 0 auto 32px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5);
}

.hero h1 {
  font-size: clamp(40px, 7vw, 72px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, #7DD3FC 50%, var(--accent) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 6s ease-in-out infinite;
}

@keyframes shimmer {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 200% center; }
}

.hero p {
  font-size: clamp(17px, 2.2vw, 20px);
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 560px;
  margin: 0 auto 40px;
}

.app-store-badge {
  display: inline-block;
  transition: transform var(--transition), opacity var(--transition);
}

.app-store-badge:hover {
  transform: scale(1.05);
  opacity: 1;
}

.app-store-badge svg {
  height: 54px;
  width: auto;
}

.hero-fade {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 160px;
  background: linear-gradient(to bottom, transparent, var(--bg-primary));
  pointer-events: none;
}

/* ============================================
   Section Shared Styles
   ============================================ */

.section {
  padding: 100px 24px;
  position: relative;
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-label {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.6;
}

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

.section-header .section-subtitle {
  margin: 0 auto;
}

/* ============================================
   Features Section
   ============================================ */

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-light);
  transform: translateY(-2px);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--accent);
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.feature-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* ============================================
   How It Works Section
   ============================================ */

.how-it-works {
  background: var(--bg-secondary);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  position: relative;
}

.steps::before {
  content: '';
  position: absolute;
  top: 40px;
  left: calc(16.66% + 20px);
  right: calc(16.66% + 20px);
  height: 2px;
  background: linear-gradient(to right, var(--accent), var(--border), var(--accent));
  opacity: 0.4;
}

.step {
  text-align: center;
  position: relative;
}

.step-number {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 28px;
  font-weight: 700;
  color: var(--accent);
  position: relative;
  z-index: 1;
  box-shadow: 0 0 30px var(--accent-dim);
}

.step h3 {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.step p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.55;
  max-width: 280px;
  margin: 0 auto;
}

/* ============================================
   Pricing Section
   ============================================ */

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 760px;
  margin: 0 auto;
}

.pricing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 32px;
  position: relative;
  transition: border-color var(--transition), transform var(--transition);
}

.pricing-card:hover {
  transform: translateY(-2px);
}

.pricing-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 40px var(--accent-dim), inset 0 1px 0 rgba(75, 184, 232, 0.2);
}

.pricing-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #000;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 100px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.pricing-card h3 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.pricing-price {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.pricing-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.pricing-features li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 15px;
  color: var(--text-secondary);
}

.pricing-features li::before {
  content: '';
  display: inline-flex;
  width: 20px;
  height: 20px;
  min-width: 20px;
  border-radius: 50%;
  background: var(--accent-dim);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%234BB8E8' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}

/* ============================================
   CTA / Download Section
   ============================================ */

.cta-section {
  text-align: center;
  padding: 120px 24px;
}

.cta-section .section-title {
  margin-bottom: 12px;
}

.cta-section .section-subtitle {
  margin: 0 auto 40px;
}

/* ============================================
   Footer
   ============================================ */

.footer {
  border-top: 1px solid var(--border);
  padding: 48px 24px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 16px;
  color: var(--text-primary);
}

.footer-brand img {
  width: 28px;
  height: 28px;
  border-radius: 7px;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 14px;
  transition: color var(--transition);
}

.footer-links a:hover {
  color: var(--text-secondary);
  opacity: 1;
}

.footer-copy {
  width: 100%;
  text-align: center;
  padding-top: 32px;
  margin-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--text-muted);
}

/* ============================================
   Scroll Animations
   ============================================ */

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.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; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ============================================
   Legal Pages (Privacy & Terms)
   ============================================ */

.legal-page {
  padding: 120px 24px 80px;
  min-height: 100vh;
}

.legal-content {
  max-width: 720px;
  margin: 0 auto;
}

.legal-content h1 {
  font-size: clamp(32px, 5vw, 48px);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.legal-content .legal-date {
  display: block;
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 48px;
}

.legal-content h2 {
  font-size: 22px;
  font-weight: 600;
  margin-top: 48px;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}

.legal-content p {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.legal-content ul {
  list-style: none;
  margin-bottom: 16px;
  padding-left: 0;
}

.legal-content ul li {
  font-size: 16px;
  color: var(--text-secondary);
  line-height: 1.7;
  padding-left: 20px;
  position: relative;
  margin-bottom: 8px;
}

.legal-content ul li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.legal-content strong {
  color: var(--text-primary);
  font-weight: 600;
}

.legal-content a {
  color: var(--accent);
}

.legal-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 40px;
  transition: color var(--transition);
}

.legal-back:hover {
  color: var(--text-primary);
  opacity: 1;
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps::before {
    display: none;
  }
}

@media (max-width: 680px) {
  .nav-links {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(13, 13, 15, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 40px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    font-size: 18px;
  }

  .nav-mobile-toggle {
    display: block;
  }

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

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

  .steps {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
  }

  .hero {
    min-height: auto;
    padding: 140px 24px 80px;
  }

  .section {
    padding: 72px 24px;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-links {
    flex-wrap: wrap;
    justify-content: center;
  }
}