* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --bg: #08101e; --bg2: #0d1830; --ink: #d8e6f2; --dim: #8fa6bd;
  --teal: #2ec4b6; --teal-hi: #9ef7e0; --amber: #ffb03a; --line: #1f3050;
}
html { scroll-behavior: smooth; }
body { background: radial-gradient(1200px 700px at 70% -10%, #14263f 0%, var(--bg) 55%);
  color: var(--ink); font: 16px/1.6 system-ui, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh; }
h1, h2 { font-family: ui-monospace, "Cascadia Mono", Menlo, Consolas, monospace; }
a { color: var(--teal-hi); }

.nav { display: flex; align-items: center; justify-content: space-between;
  padding: 18px 4vw; border-bottom: 1px solid var(--line); }
.logo { letter-spacing: 6px; font-weight: 700; color: var(--teal-hi);
  font-family: ui-monospace, Menlo, Consolas, monospace; }
.nav nav a { margin-left: 22px; text-decoration: none; color: var(--dim); font-size: 14px; }
.nav nav a:hover { color: var(--teal-hi); }

.hero { display: grid; grid-template-columns: minmax(320px, 460px) 1fr; gap: 40px;
  align-items: center; padding: 48px 4vw 40px; max-width: 1280px; margin: 0 auto; }
.hero-copy h1 { font-size: clamp(46px, 9vw, 92px); letter-spacing: 14px; color: #eafff8;
  text-shadow: 0 0 26px rgba(46,196,182,0.55), 0 0 80px rgba(46,196,182,0.2); }
.tagline { color: var(--teal-hi); font-size: clamp(15px, 2.1vw, 20px); margin: 10px 0 26px; }
#play-now { display: inline-block; text-decoration: none; font-weight: 700;
  font-size: 17px; letter-spacing: 3px; color: #062019;
  background: linear-gradient(180deg, #67f0dd, #2ec4b6); padding: 16px 40px;
  border-radius: 12px; box-shadow: 0 8px 34px rgba(46,196,182,0.4);
  transition: transform .15s, box-shadow .15s; }
#play-now:hover { transform: translateY(-2px) scale(1.03); box-shadow: 0 12px 44px rgba(46,196,182,0.55); }
.micro { margin-top: 14px; font-size: 12.5px; color: var(--dim); }
.hero-frame { border: 1px solid var(--line); border-radius: 18px; overflow: hidden;
  background: #05090f; box-shadow: 0 24px 70px rgba(0,0,0,0.55), 0 0 60px rgba(46,196,182,0.07) inset; }
#hero-preview { display: block; width: 100%; }

#gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px; padding: 8px 4vw 48px; max-width: 1280px; margin: 0 auto; }
#gallery img { width: 100%; height: auto; border-radius: 12px; border: 1px solid var(--line);
  background: #05090f; box-shadow: 0 10px 30px rgba(0,0,0,0.4); }

.cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px; padding: 0 4vw 56px; max-width: 1280px; margin: 0 auto; }
.block { background: linear-gradient(180deg, rgba(21,37,62,0.75), rgba(10,18,33,0.75));
  border: 1px solid var(--line); border-radius: 16px; padding: 24px 26px; }
.block h2 { font-size: 15px; letter-spacing: 4px; color: var(--amber); margin-bottom: 14px; }
.block p { color: var(--dim); font-size: 14.5px; }
#features { list-style: none; }
#features li { color: var(--dim); font-size: 14.5px; padding: 9px 0 9px 26px; position: relative;
  border-bottom: 1px dashed rgba(31,48,80,0.7); }
#features li:last-child { border-bottom: 0; }
#features li::before { content: "◆"; position: absolute; left: 2px; color: var(--teal); }
#controls dl { color: var(--dim); font-size: 14px; }
#controls dt { color: var(--teal-hi); font-weight: 600; margin-top: 12px; font-size: 13px;
  letter-spacing: 1px; }
#controls dd { margin-left: 0; }
footer { text-align: center; color: #5f7590; font-size: 12.5px; padding: 26px 4vw 40px;
  border-top: 1px solid var(--line); }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding-top: 30px; gap: 24px; }
  .hero-copy h1 { letter-spacing: 8px; }
  .nav nav a { margin-left: 14px; }
}