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

:root {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-card: #1f2b47;
  --text-primary: #f0f0f0;
  --text-secondary: #b0b8c8;
  --accent: #4a9eff;
  --accent-hover: #6bb3ff;
  --border: #2a3a5c;
  --nav-bg: rgba(26, 26, 46, 0.95);
  --max-width: 1200px;
}

html { scroll-behavior: smooth; }

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

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

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-primary);
}

.nav-brand img {
  width: 36px;
  height: 36px;
  border-radius: 8px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.95rem;
  transition: color 0.2s;
}

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

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.25rem;
}

/* ===== Hero ===== */
.hero {
  padding: 8rem 0 5rem;
  text-align: center;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.hero-icon {
  width: 120px;
  height: 120px;
  border-radius: 24px;
  margin: 0 auto 2rem;
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.hero-tagline {
  font-size: 1.35rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  transition: background 0.2s, transform 0.1s;
  border: none;
  cursor: pointer;
}

.btn:active { transform: scale(0.98); }

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

.btn-secondary {
  background: transparent;
  color: var(--accent);
  border: 2px solid var(--accent);
}
.btn-secondary:hover { background: rgba(74, 158, 255, 0.1); color: var(--accent-hover); }

.btn-icon {
  width: 20px;
  height: 20px;
}

/* ===== Section Common ===== */
.section {
  padding: 5rem 0;
}

.section-alt {
  background: var(--bg-secondary);
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1rem;
}

.section-subtitle {
  text-align: center;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto 3rem;
  font-size: 1.1rem;
}

/* ===== Features Grid ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.5;
}

.feature-badge {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  margin-left: 0.5rem;
  vertical-align: middle;
  text-transform: uppercase;
}

/* ===== Screenshots ===== */
.screenshots-scroll {
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  padding: 1rem 0 2rem;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}

.screenshots-scroll::-webkit-scrollbar { height: 8px; }
.screenshots-scroll::-webkit-scrollbar-track { background: var(--bg-secondary); border-radius: 4px; }
.screenshots-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
.screenshots-scroll::-webkit-scrollbar-thumb:hover { background: var(--accent); }

.screenshot-item {
  flex: 0 0 auto;
  scroll-snap-align: start;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  border: 1px solid var(--border);
}

.screenshot-item img {
  height: 340px;
  width: auto;
  display: block;
}

/* ===== Editions (AFS specific) ===== */
.editions-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  max-width: 800px;
  margin: 0 auto;
}

.edition-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem 2rem;
  text-align: center;
  position: relative;
}

.edition-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 8px 32px rgba(74, 158, 255, 0.15);
}

.edition-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #fff;
  padding: 0.25rem 1rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 700;
}

.edition-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.edition-price {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
}

.edition-features {
  list-style: none;
  text-align: left;
  margin-bottom: 2rem;
}

.edition-features li {
  padding: 0.4rem 0;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.edition-features li::before {
  content: "\2713";
  color: var(--accent);
  font-weight: 700;
  margin-right: 0.75rem;
}

/* ===== CTA ===== */
.cta {
  text-align: center;
  padding: 5rem 0;
}

.cta h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.cta p {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 1.1rem;
}

/* ===== Tech Highlights ===== */
.tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.tech-tag {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.5rem 1.25rem;
  border-radius: 20px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copy {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  list-style: none;
  gap: 1.5rem;
}

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

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

/* ===== Legal Pages ===== */
.legal-page {
  padding: 7rem 0 4rem;
  max-width: 800px;
  margin: 0 auto;
}

.legal-page h1 {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.legal-page .last-updated {
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  font-size: 0.95rem;
}

.legal-page h2 {
  font-size: 1.35rem;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.legal-page h2:first-of-type { border-top: none; padding-top: 0; }

.legal-page p, .legal-page li {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.legal-page ul {
  list-style: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.legal-page .todo-placeholder {
  background: rgba(255, 200, 50, 0.15);
  border: 1px dashed rgba(255, 200, 50, 0.5);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  color: #f0c040;
  font-weight: 600;
}

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

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-links.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--nav-bg);
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.5rem;
    gap: 1rem;
  }
  .nav-toggle { display: block; }

  .hero { padding: 6rem 0 3rem; }
  .hero h1 { font-size: 2rem; }
  .hero-tagline { font-size: 1.1rem; }
  .hero-icon { width: 80px; height: 80px; }

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

  .section { padding: 3rem 0; }
  .section-title { font-size: 1.5rem; }

  .screenshot-item img { height: 240px; }

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