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

:root {
  --bg: #000000;
  --bg-card: #1C1C1E;
  --bg-card-hover: #2C2C2E;
  --accent: #FF8A00;
  --accent-hover: #e67a00;
  --text: #FFFFFF;
  --text-secondary: #8E8E93;
  --border: #38383A;
  --success: #30D158;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 14px;
  font-size: 16px;
  font-weight: 600;
  transition: background 0.2s, opacity 0.2s;
  cursor: pointer;
}

.btn:hover {
  opacity: 0.9;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
}

.btn-sm {
  padding: 8px 20px;
  font-size: 14px;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
}

.btn-sm:hover {
  background: var(--accent-hover);
}

/* ===== Nav ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
}

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

.nav-links a {
  font-size: 15px;
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

/* ===== Hero ===== */
.hero {
  padding: 160px 0 100px;
  text-align: center;
}

.hero-inner {
  max-width: 720px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
}

.accent {
  color: var(--accent);
}

.hero-tagline {
  font-size: 20px;
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.store-badges {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.store-badge {
  height: 48px;
  width: auto;
  transition: opacity 0.2s;
}

.store-badge:hover {
  opacity: 0.85;
}

/* ===== Features ===== */
.features {
  padding: 100px 0;
}

.features h2 {
  text-align: center;
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 60px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 36px 32px;
  transition: background 0.2s, transform 0.2s;
}

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

.feature-icon {
  font-size: 40px;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ===== How It Works ===== */
.how-it-works {
  padding: 100px 0;
  border-top: 1px solid var(--border);
}

.how-it-works h2 {
  text-align: center;
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 60px;
}

.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 32px;
}

.step {
  flex: 1;
  text-align: center;
  max-width: 260px;
}

.step-number {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: var(--accent);
  color: #fff;
  font-size: 22px;
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.step h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.step-arrow {
  font-size: 28px;
  color: var(--text-secondary);
  padding-top: 12px;
}

/* ===== CTA ===== */
.cta {
  padding: 100px 0;
  border-top: 1px solid var(--border);
  text-align: center;
}

.cta-inner {
  max-width: 600px;
  margin: 0 auto;
}

.cta h2 {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
}

.cta p {
  font-size: 18px;
  color: var(--text-secondary);
  margin-bottom: 36px;
}

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

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 18px;
  font-weight: 700;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-size: 14px;
  color: var(--text-secondary);
  transition: color 0.2s;
}

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

.footer-copy {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .hero {
    padding: 120px 0 72px;
  }

  .hero h1 {
    font-size: 38px;
  }

  .hero-tagline {
    font-size: 17px;
  }

  .features h2,
  .how-it-works h2,
  .cta h2 {
    font-size: 30px;
  }

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

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

  .step-arrow {
    transform: rotate(90deg);
    padding: 0;
  }

  .nav-links a:not(.btn) {
    display: none;
  }

  .features,
  .how-it-works,
  .cta {
    padding: 72px 0;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 32px;
  }

  .store-badge {
    height: 40px;
  }
}