/* Xprivate Arcade — self-contained stylesheet. No external assets. */

:root {
  color-scheme: light dark;

  --accent: #7c3aed;
  --accent-2: #ec4899;
  --accent-3: #06b6d4;

  --bg: #f7f7fb;
  --bg-elevated: #ffffff;
  --text: #1a1a24;
  --text-muted: #55556b;
  --border: #e4e4ee;
  --shadow: 0 10px 30px -12px rgba(30, 20, 60, 0.18);
  --shadow-sm: 0 2px 10px -4px rgba(30, 20, 60, 0.15);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f0f16;
    --bg-elevated: #17171f;
    --text: #f1f1f8;
    --text-muted: #a6a6bd;
    --border: #2a2a38;
    --shadow: 0 10px 30px -12px rgba(0, 0, 0, 0.6);
    --shadow-sm: 0 2px 10px -4px rgba(0, 0, 0, 0.5);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

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

.container {
  width: 100%;
  max-width: 72rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- Nav ---------- */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.5rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.brand svg {
  width: 32px;
  height: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.55rem;
  cursor: pointer;
  color: var(--text);
}

.nav-toggle svg {
  width: 20px;
  height: 20px;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: var(--radius-sm);
  padding: 0.65rem 1.3rem;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  box-shadow: var(--shadow);
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.btn-sm {
  padding: 0.4rem 0.9rem;
  font-size: 0.85rem;
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  overflow: hidden;
  padding: 6rem 0 5rem;
  isolation: isolate;
}

.hero::before {
  content: "";
  position: absolute;
  inset: -20% -10%;
  z-index: -1;
  background:
    radial-gradient(40% 50% at 15% 20%, color-mix(in srgb, var(--accent) 30%, transparent), transparent 70%),
    radial-gradient(45% 55% at 85% 10%, color-mix(in srgb, var(--accent-2) 28%, transparent), transparent 70%),
    radial-gradient(50% 60% at 50% 100%, color-mix(in srgb, var(--accent-3) 20%, transparent), transparent 70%);
  animation: drift 18s ease-in-out infinite alternate;
}

@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(2%, -2%, 0) scale(1.05); }
}

.hero-inner {
  text-align: center;
  max-width: 44rem;
  margin: 0 auto;
}

.eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

.hero .gradient-text {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero p.lede {
  font-size: 1.15rem;
  color: var(--text-muted);
  margin: 0 auto 2rem;
  max-width: 34rem;
}

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

.link-secondary {
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 1px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.link-secondary:hover {
  color: var(--text);
  border-color: var(--text);
}

/* ---------- Section headings ---------- */

section {
  padding: 5rem 0;
}

.section-head {
  text-align: center;
  max-width: 34rem;
  margin: 0 auto 3rem;
}

.section-head h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: 0 0 0.6rem;
  letter-spacing: -0.01em;
}

.section-head p {
  color: var(--text-muted);
  margin: 0;
}

/* ---------- Games grid ---------- */

.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15.5rem, 1fr));
  gap: 1.5rem;
}

.game-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.game-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
}

.game-art {
  aspect-ratio: 16 / 10;
  width: 100%;
}

.game-art svg {
  width: 100%;
  height: 100%;
}

.game-body {
  padding: 1.25rem 1.35rem 1.5rem;
}

.game-body h3 {
  margin: 0 0 0.25rem;
  font-size: 1.1rem;
}

.game-genre {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.game-body p.desc {
  margin: 0 0 1rem;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.play-affordance {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}

.play-affordance svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
}

/* ---------- Features ---------- */

.features-strip {
  background: var(--bg-elevated);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: 2rem;
}

.feature {
  text-align: center;
  padding: 0 1rem;
}

.feature-icon {
  width: 52px;
  height: 52px;
  margin: 0 auto 1rem;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 18%, transparent), color-mix(in srgb, var(--accent-2) 18%, transparent));
}

.feature-icon svg {
  width: 26px;
  height: 26px;
  color: var(--accent);
}

.feature h3 {
  font-size: 1.05rem;
  margin: 0 0 0.4rem;
}

.feature p {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin: 0;
}

/* ---------- CTA band ---------- */

.cta-band {
  text-align: center;
  padding: 4.5rem 0;
}

.cta-card {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: var(--radius-lg);
  padding: 3rem 2rem;
  color: #fff;
  max-width: 48rem;
  margin: 0 auto;
  box-shadow: var(--shadow);
}

.cta-card h2 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 3vw, 2rem);
}

.cta-card p {
  margin: 0 0 1.75rem;
  opacity: 0.92;
}

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

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 3rem 0 2.5rem;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  gap: 2.5rem;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
}

.footer-brand svg {
  width: 28px;
  height: 28px;
}

.footer-tagline {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0.6rem 0 0;
  max-width: 20rem;
}

.footer-links {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
}

.footer-links h4 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin: 0 0 0.9rem;
}

.footer-links ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.6rem;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 0.92rem;
  transition: color 0.15s ease;
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
}

.social-icons {
  display: flex;
  gap: 0.75rem;
}

.social-icons a {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
}

.social-icons a:hover {
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.social-icons svg {
  width: 16px;
  height: 16px;
}

/* ---------- Scroll reveal (progressive enhancement) ---------- */

.reveal {
  opacity: 1;
  transform: none;
}

.js .reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- Responsive ---------- */

@media (max-width: 720px) {
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--bg-elevated);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: 0.5rem 1.5rem 1rem;
    display: none;
  }

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

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
  }

  .nav-links li:last-child a {
    border-bottom: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .hero {
    padding: 4.5rem 0 3.5rem;
  }

  section {
    padding: 3.5rem 0;
  }

  .footer-top {
    flex-direction: column;
    gap: 1.75rem;
  }
}