/* ===== Design Tokens ===== */
:root {
  --bg-primary: #08080F;
  --bg-secondary: #0E0E1A;
  --bg-card: rgba(20, 20, 40, 0.6);
  --bg-glass: rgba(140, 100, 255, 0.06);
  --border-glass: rgba(140, 100, 255, 0.12);
  --border-subtle: rgba(255, 255, 255, 0.06);

  --text-primary: #F0EEFF;
  --text-secondary: rgba(240, 238, 255, 0.65);
  --text-muted: rgba(240, 238, 255, 0.4);

  --accent: #A87CFF;
  --accent-bright: #C4A0FF;
  --accent-dim: #7B5CBF;
  --accent-glow: rgba(168, 124, 255, 0.25);
  --accent-gradient: linear-gradient(135deg, #7B5CBF 0%, #A87CFF 50%, #C4A0FF 100%);
  --accent-gradient-subtle: linear-gradient(135deg, rgba(123, 92, 191, 0.15) 0%, rgba(168, 124, 255, 0.08) 100%);

  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --max-width: 1120px;
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset & Base ===== */
*, *::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: var(--font-family);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}

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

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

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

/* ===== Background Ambient Effects ===== */
.bg-ambient {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.bg-ambient::before {
  content: '';
  position: absolute;
  top: -30%;
  left: -10%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(168, 124, 255, 0.07) 0%, transparent 70%);
  border-radius: 50%;
  animation: float-slow 20s ease-in-out infinite;
}

.bg-ambient::after {
  content: '';
  position: absolute;
  bottom: -20%;
  right: -15%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, rgba(123, 92, 191, 0.05) 0%, transparent 70%);
  border-radius: 50%;
  animation: float-slow 25s ease-in-out infinite reverse;
}

@keyframes float-slow {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -20px) scale(1.05); }
  66% { transform: translate(-20px, 15px) scale(0.97); }
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.section {
  padding: 80px 0;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 24px;
  transition: background var(--transition-smooth), backdrop-filter var(--transition-smooth);
}

.nav.scrolled {
  background: rgba(8, 8, 15, 0.85);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-bottom: 1px solid var(--border-glass);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
  text-decoration: none;
}

.nav-logo img {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
}

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

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: color var(--transition-fast);
  position: relative;
}

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

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

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

/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 101;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.nav-toggle span + span {
  margin-top: 6px;
}

.nav-toggle.open span:first-child {
  transform: rotate(45deg) translate(4px, 4px);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:last-child {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  position: relative;
}

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

.hero-icon {
  width: 100px;
  height: 100px;
  border-radius: var(--radius-lg);
  margin: 0 auto 32px;
  box-shadow:
    0 0 40px rgba(168, 124, 255, 0.2),
    0 20px 60px rgba(0, 0, 0, 0.4);
  animation: icon-float 6s ease-in-out infinite;
}

@keyframes icon-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero h1 {
  margin-bottom: 20px;
}

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

.hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== Store Buttons ===== */
.store-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 28px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  color: var(--text-primary);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition-fast);
  backdrop-filter: blur(10px);
}

.store-btn:hover {
  background: var(--bg-glass);
  border-color: var(--accent-dim);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(168, 124, 255, 0.15);
  color: var(--text-primary);
}

.store-btn svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
}

.store-btn .store-label {
  text-align: left;
  line-height: 1.2;
}

.store-btn .store-label small {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===== Features / About Section ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  backdrop-filter: blur(12px);
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity var(--transition-smooth);
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(168, 124, 255, 0.2);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
}

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

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--accent-gradient-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.4rem;
}

.feature-card h3 {
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 0.95rem;
  line-height: 1.6;
}

/* ===== Section Header ===== */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 16px;
}

.section-header .label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 12px;
  padding: 6px 16px;
  background: var(--accent-gradient-subtle);
  border-radius: 100px;
  border: 1px solid var(--border-glass);
}

.section-header p {
  margin-top: 12px;
}

/* ===== How It Works ===== */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 48px;
  counter-reset: step;
}

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

.step-number {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--accent-gradient-subtle);
  border: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--accent-bright);
}

.step h3 {
  margin-bottom: 8px;
}

.step p {
  font-size: 0.95rem;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0;
  position: relative;
  z-index: 1;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
}

.footer-logo img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
}

.footer-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: color var(--transition-fast);
}

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

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

/* ===== Legal Pages (Terms & Privacy) ===== */
.legal-page {
  padding-top: 120px;
  padding-bottom: 80px;
  min-height: 100vh;
}

.legal-content {
  max-width: 800px;
  margin: 0 auto;
}

.legal-content h1 {
  margin-bottom: 8px;
}

.legal-meta {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
}

.legal-content h2 {
  margin-top: 40px;
  margin-bottom: 16px;
  font-size: 1.35rem;
}

.legal-content h3 {
  margin-top: 28px;
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.legal-content p {
  margin-bottom: 16px;
  font-size: 1rem;
  line-height: 1.8;
}

.legal-content ul, .legal-content ol {
  margin-bottom: 16px;
  padding-left: 24px;
}

.legal-content li {
  color: var(--text-secondary);
  margin-bottom: 8px;
  line-height: 1.7;
}

.legal-content a {
  color: var(--accent-bright);
  text-decoration: underline;
  text-decoration-color: rgba(196, 160, 255, 0.3);
  text-underline-offset: 3px;
}

.legal-content a:hover {
  text-decoration-color: var(--accent-bright);
}

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

/* ===== Scroll Reveal Animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 280px;
    background: rgba(14, 14, 26, 0.97);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    justify-content: center;
    gap: 28px;
    padding: 40px;
    transform: translateX(100%);
    transition: transform var(--transition-smooth);
    border-left: 1px solid var(--border-glass);
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .nav-links a {
    font-size: 1.1rem;
  }

  .nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 0;
  }

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

  .steps {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero {
    padding: 100px 20px 60px;
    min-height: auto;
  }

  .hero-icon {
    width: 80px;
    height: 80px;
  }

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

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

  .section {
    padding: 60px 0;
  }

  .legal-page {
    padding-top: 100px;
  }
}

@media (max-width: 480px) {
  .store-buttons {
    flex-direction: column;
    align-items: center;
  }

  .store-btn {
    width: 100%;
    max-width: 260px;
    justify-content: center;
  }
}