* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: "Segoe UI", system-ui, -apple-system, sans-serif; background: #0b1020;
  color: #dbe4ff; line-height: 1.55; }
:root { --gold: #ffd166; --teal: #67e8f2; --mint: #62ffd0; --rose: #ff5c8a; }
header { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap;
  gap: 10px; padding: 16px 5vw; position: sticky; top: 0; background: #0b1020e8;
  backdrop-filter: blur(6px); border-bottom: 1px solid #223055; z-index: 5; }
.logo { font-size: 21px; font-weight: 800; letter-spacing: 0.04em; }
.accent { color: var(--mint); }
nav { display: flex; gap: 16px; align-items: center; flex-wrap: wrap; }
.nav-link { color: #9fb3dd; text-decoration: none; font-size: 14px; }
.nav-link:hover { color: #fff; }
.mini-btn { background: #223058; color: #9fe8fa; padding: 7px 14px; border-radius: 9px;
  text-decoration: none; font-weight: 600; font-size: 14px; border: 1px solid #3a4f86; }
.hero { display: grid; grid-template-columns: 1fr 1.15fr; gap: 4vw; align-items: center;
  padding: 48px 5vw 40px; background:
  radial-gradient(1200px 500px at 80% -10%, #1d2a4d66, #0b102000),
  radial-gradient(800px 400px at 10% 110%, #123c3344, #0b102000), #0b1020; }
.hero-text h1 { font-size: clamp(38px, 7vw, 68px); line-height: 1.05; letter-spacing: 0.02em; }
.tagline { color: #9fe8fa; font-size: clamp(15px, 2vw, 19px); margin: 14px 0 22px; max-width: 34ch; }
.hero-cta { display: flex; flex-direction: column; gap: 10px; }
#play-now { display: inline-block; width: max-content; background: linear-gradient(#62ffd0, #1fa87f);
  color: #06231a; font-size: 19px; font-weight: 800; padding: 14px 34px; border-radius: 14px;
  text-decoration: none; letter-spacing: 0.03em; box-shadow: 0 8px 30px #62ffd033; }
#play-now:hover { filter: brightness(1.12); transform: translateY(-2px); transition: 0.15s; }
.cta-note { font-size: 12.5px; color: #7d92c4; }
.hero-stage { display: flex; flex-direction: column; gap: 8px; min-width: 0; }
#hero-preview { width: 100%; aspect-ratio: 16 / 9; border-radius: 16px; border: 1px solid #223055;
  background: #04060f; box-shadow: 0 18px 60px #000c; }
.stage-caption { font-size: 12px; color: #7d92c4; }
main { max-width: 1150px; margin: 0 auto; padding: 0 5vw; }
section { padding: 44px 0; border-top: 1px solid #1a2542; }
h2 { font-size: clamp(22px, 3.4vw, 32px); margin-bottom: 22px; letter-spacing: 0.02em; }
#features ul { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px; }
#features li { background: #131a30; border: 1px solid #223055; border-left: 3px solid var(--teal);
  border-radius: 12px; padding: 15px 16px; font-size: 14.5px; color: #b9c7e8; }
#features b { color: #e9f1ff; display: block; margin-bottom: 3px; }
.controls-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.ctl { background: #131a30; border: 1px solid #223055; border-radius: 12px; padding: 15px 16px;
  font-size: 14.5px; color: #b9c7e8; }
.ctl.wide { grid-column: 1 / -1; border-left: 3px solid var(--gold); }
.ctl b { color: #e9f1ff; }
.keys { display: block; color: var(--mint); font-weight: 700; margin-bottom: 6px; }
kbd { background: #223058; border: 1px solid #3a4f86; border-bottom-width: 3px; border-radius: 5px;
  padding: 1px 7px; font-size: 12.5px; color: #e6edff; margin-right: 2px; }
#gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
#gallery h2 { grid-column: 1 / -1; }
#gallery figure { background: #131a30; border: 1px solid #223055; border-radius: 12px;
  overflow: hidden; }
#gallery img { width: 100%; display: block; aspect-ratio: 7 / 4; object-fit: cover; }
#gallery figcaption { padding: 9px 12px; font-size: 13px; color: #9fb3dd; }
.play-strip { text-align: center; }
.big-cta { display: inline-block; background: linear-gradient(#ffd166, #ff9e64); color: #3a2408;
  font-size: 19px; font-weight: 800; padding: 15px 40px; border-radius: 14px; text-decoration: none;
  box-shadow: 0 8px 30px #ffd16633; }
.big-cta:hover { filter: brightness(1.1); }
footer { padding: 26px 5vw; color: #66779c; font-size: 12.5px; border-top: 1px solid #1a2542;
  text-align: center; }
@media (max-width: 720px) {
  .hero { grid-template-columns: 1fr; padding-top: 30px; }
  .hero-text { order: 1; } .hero-stage { order: 2; }
  header { padding: 12px 4vw; }
  nav { gap: 10px; }
  section { padding: 32px 0; }
}