* { margin: 0; box-sizing: border-box; }
:root {
  --ink: #dff3ff; --dim: #8fb8d4; --deep: #071426; --panel: #0b2138;
  --pink: #ff5d8f; --mint: #4de8d0; --amber: #ffc14d; --line: #1d4062;
}
html { scroll-behavior: smooth; }
body { background: var(--deep); color: var(--ink);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif; line-height: 1.55; }
.wrap { max-width: 1060px; margin: 0 auto; padding: 0 22px; }

/* hero */
.hero { position: relative; min-height: 92vh; display: flex; align-items: center;
  overflow: hidden; background:
  radial-gradient(120% 90% at 50% 110%, #12395e 0%, #071426 55%, #03070f 100%); }
#hero-preview { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.hero::after { content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(3,7,15,.55), rgba(3,7,15,0) 35%, rgba(3,7,15,.72)); }
.hero .wrap { position: relative; z-index: 2; }
.kicker { letter-spacing: .35em; font-size: 12px; color: var(--mint);
  text-transform: uppercase; margin-bottom: 14px; }
h1 { font-size: clamp(44px, 9vw, 92px); line-height: 1.02; letter-spacing: .04em;
  background: linear-gradient(92deg, var(--pink) 5%, var(--amber) 48%, var(--mint) 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 26px rgba(77,232,208,.28)); }
.tagline { margin-top: 14px; font-size: clamp(16px, 2.6vw, 22px); color: var(--dim);
  max-width: 560px; }
.cta-row { margin-top: 30px; display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
#play-now { display: inline-block; padding: 16px 44px; border-radius: 40px;
  font-size: 18px; font-weight: 800; letter-spacing: .1em; text-decoration: none;
  color: #14050f; background: linear-gradient(90deg, var(--pink), var(--amber));
  box-shadow: 0 0 34px rgba(255,93,143,.55); transition: transform .15s, box-shadow .15s; }
#play-now:hover { transform: translateY(-2px) scale(1.03); box-shadow: 0 0 46px rgba(255,158,77,.6); }
.ghost-link { color: var(--mint); text-decoration: none; border-bottom: 1px dashed var(--mint); }

section { padding: 64px 0; border-top: 1px solid var(--line); }
h2 { font-size: clamp(24px, 4vw, 34px); letter-spacing: .12em; margin-bottom: 22px;
  color: #bff7ff; }
h2 em { color: var(--amber); font-style: normal; }
#features { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px; }
#features li { background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  padding: 18px; }
#features b { display: block; color: var(--mint); letter-spacing: .06em; margin-bottom: 6px; }
#features li:nth-child(2n) b { color: var(--pink); }
#features li:nth-child(3n) b { color: var(--amber); }
#controls { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px; margin-top: 8px; }
#controls .ctl { background: var(--panel); border: 1px solid var(--line);
  border-radius: 14px; padding: 16px; }
kbd { display: inline-block; min-width: 34px; text-align: center; padding: 5px 9px;
  border: 1px solid #3c6b94; border-bottom-width: 3px; border-radius: 7px;
  background: #123152; color: #cdeaff; font-family: inherit; font-weight: 700; }
#gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px; margin-top: 10px; }
#gallery figure { background: var(--panel); border: 1px solid var(--line);
  border-radius: 14px; overflow: hidden; }
#gallery img { width: 100%; display: block; }
#gallery figcaption { padding: 10px 14px; font-size: 13px; color: var(--dim); }
footer { padding: 40px 0 60px; color: #5d88a8; font-size: 13px; border-top: 1px solid var(--line); }
@media (max-width: 640px) {
  .hero { min-height: 82vh; }
  section { padding: 44px 0; }
  #play-now { width: 100%; text-align: center; }
}