/* Strata: Corelight — landing page styles (system fonts only, no external assets). */
:root {
  --sky: #1b2a33;
  --deep: #101a21;
  --teal: #2fd6c3;
  --teal-dim: #1a5d55;
  --rose: #ff5f6d;
  --gold: #ffd166;
  --paper: #e8f1f4;
  --muted: #9db3bd;
  --card: #17262f;
  --line: #27404d;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: radial-gradient(1100px 700px at 70% -10%, #23394a 0%, var(--sky) 55%, var(--deep) 100%);
  color: var(--paper);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  overflow-x: hidden;
}
h1, h2 { line-height: 1.15; margin: 0 0 .5em; }
a { color: var(--teal); }

#nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px clamp(14px, 4vw, 42px);
  position: sticky; top: 0; z-index: 5;
  background: rgba(16, 26, 33, .78); backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
.logo { font-weight: 700; letter-spacing: .14em; text-transform: uppercase; font-size: 14px; color: var(--teal); }
.navplay {
  font-size: 13px; letter-spacing: .12em; text-transform: uppercase; text-decoration: none;
  border: 1px solid var(--teal-dim); border-radius: 999px; padding: 7px 16px;
}

#hero {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(18px, 3vw, 40px);
  align-items: center; padding: clamp(24px, 5vw, 64px) clamp(14px, 4vw, 42px);
  max-width: 1240px; margin: 0 auto;
}
#heroText h1 {
  font-size: clamp(34px, 6vw, 64px); font-weight: 800; letter-spacing: -.01em;
  color: var(--paper);
  text-shadow: 0 0 34px rgba(47, 214, 195, .35);
}
.tagline { font-size: clamp(16px, 2vw, 20px); color: var(--muted); max-width: 34ch; margin: 0 0 1.4em; }
.fineprint { font-size: 12.5px; color: var(--muted); margin-top: 14px; }

#play-now, #play-now-2 {
  display: inline-block; text-decoration: none; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; font-size: 15px;
  color: #06222a; background: linear-gradient(135deg, var(--teal), var(--gold));
  padding: 15px 34px; border-radius: 12px;
  box-shadow: 0 10px 30px rgba(47, 214, 195, .28), inset 0 1px 0 rgba(255, 255, 255, .4);
  transition: transform .15s ease, box-shadow .15s ease;
}
#play-now:hover, #play-now-2:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgba(255, 209, 102, .3); }

#hero-preview {
  width: 100%; aspect-ratio: 16 / 10; min-height: 240px;
  border-radius: 14px; border: 1px solid var(--line);
  background: var(--deep);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .45);
  display: block;
}

main { max-width: 1240px; margin: 0 auto; padding: 0 clamp(14px, 4vw, 42px) 40px; }
section + section { margin-top: clamp(36px, 6vw, 72px); }
h2 { font-size: clamp(22px, 3.4vw, 32px); color: var(--teal); }

#gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
#gallery figure { margin: 0; background: var(--card); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
#gallery img { display: block; width: 100%; height: auto; }
#gallery figcaption { padding: 10px 12px; font-size: 13px; color: var(--muted); }

#features { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
#features li {
  background: var(--card); border: 1px solid var(--line); border-left: 3px solid var(--teal);
  border-radius: 10px; padding: 14px 16px; color: var(--muted);
}
#features b { color: var(--paper); }

#controls {
  background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: clamp(16px, 3vw, 28px);
}
#controls p { margin: 0 0 .9em; }
#controls .keys { color: var(--muted); font-size: 15px; }
#controls b { color: var(--gold); }
#play-now-2 { margin-top: 10px; }

footer {
  border-top: 1px solid var(--line); padding: 22px clamp(14px, 4vw, 42px);
  color: var(--muted); font-size: 13px; text-align: center;
}

@media (max-width: 820px) {
  #hero { grid-template-columns: 1fr; }
  #heroText { order: 1; }
  #hero-preview { order: 2; }
}