:root {
  --cyan: #35e0ff; --rose: #ff5b8a; --lime: #b6ff4d;
  --ink: #050b14; --panel: #0b1a24; --text: #cfe9f2;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; background: radial-gradient(1200px 700px at 70% -10%, #103244 0%, var(--ink) 55%);
  color: var(--text); font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  line-height: 1.55; overflow-x: hidden;
}
h1, h2, h3 { line-height: 1.15; }
a { color: var(--cyan); }

#nav { position: sticky; top: 0; z-index: 20; display: flex; align-items: center;
  gap: 16px; padding: 12px 20px; background: #050b14cc; backdrop-filter: blur(10px);
  border-bottom: 1px solid #14303d; }
.logo { font-size: 20px; font-weight: 700; letter-spacing: 0.08em; color: var(--cyan);
  text-shadow: 0 0 18px #35e0ff55; }
#nav nav { margin-left: auto; display: flex; gap: 14px; flex-wrap: wrap; }
#nav a { color: #9fd2df; text-decoration: none; font-size: 14px; }
#nav a:hover { color: #fff; }
.nav-play { border: 1px solid var(--cyan); border-radius: 8px; padding: 5px 12px;
  color: var(--cyan) !important; }

#hero { display: flex; gap: 28px; align-items: center; flex-wrap: wrap;
  padding: 44px 24px 40px; max-width: 1200px; margin: 0 auto; }
.hero-text { flex: 1 1 340px; }
.kicker { text-transform: uppercase; letter-spacing: 0.18em; font-size: 12px;
  color: var(--lime); margin: 0 0 10px; }
#hero h1 { font-size: clamp(46px, 9vw, 84px); margin: 0 0 10px; letter-spacing: 0.04em;
  background: linear-gradient(100deg, #9ff5ff 10%, #35e0ff 45%, #b6ff4d 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 0 44px #35e0ff33; }
.tagline { font-size: 18px; color: #8fd4c9; margin: 0 0 22px; max-width: 420px; }
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; }
#play-now, .ghost { display: inline-block; text-decoration: none; font-size: 18px;
  padding: 14px 30px; border-radius: 14px; }
#play-now { background: linear-gradient(135deg, #14e8a8, #12b8e8);
  color: #03222e; font-weight: 700; box-shadow: 0 0 34px #35e0ff66; }
#play-now:hover { transform: translateY(-2px); box-shadow: 0 0 48px #35e0ff88; }
.ghost { border: 1px solid #2a6f78; color: #a8e6ef; }
.hero-canvas-wrap { flex: 1 1 420px; position: relative; min-width: 280px; }
#hero-preview { width: 100%; height: 380px; display: block; border-radius: 18px;
  border: 1px solid #1d4a56; box-shadow: 0 10px 60px #00000066, 0 0 40px #1cf0c022; }
.preview-tag { display: block; margin-top: 8px; font-size: 12px; color: #6fa9b8; }

#why, #controls, #gallery { max-width: 1200px; margin: 0 auto; padding: 40px 24px; }
h2 { font-size: 30px; margin: 0 0 20px; color: #e8fbff; }
#features { list-style: none; margin: 0; padding: 0; display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
#features li { background: linear-gradient(#0c1f2b, #0a1822);
  border: 1px solid #1d4a56; border-radius: 14px; padding: 18px 18px 16px;
  font-size: 15px; color: #b9d9e4; }
#features b { display: block; color: var(--lime); margin-bottom: 6px; font-size: 16px; }
#features li::before { content: "◆"; color: #35e0ff66; margin-right: 8px; }

.controls-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 18px; }
.controls-grid > div { background: linear-gradient(#0c1f2b, #0a1822);
  border: 1px solid #1d4a56; border-radius: 14px; padding: 20px 22px; }
.controls-grid h3 { margin: 0 0 10px; color: #eafcff; }
.controls-grid ul { margin: 0 0 12px; padding: 0; list-style: none; }
.controls-grid li { font-size: 14px; margin-bottom: 7px; color: #b9d9e4; }
.lime { color: var(--lime); } .cyan { color: var(--cyan); }
kbd { background: #12303e; border: 1px solid #2a6f78; border-radius: 6px;
  padding: 2px 7px; font-size: 12px; color: #cfeeff; margin-right: 4px; }

.shots { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px; }
.shots figure { margin: 0; background: #0a1822; border: 1px solid #1d4a56;
  border-radius: 14px; overflow: hidden; }
.shots img { width: 100%; height: auto; display: block; }
.shots figcaption { padding: 10px 14px; font-size: 13px; color: #7fb4c4; }

#foot { text-align: center; padding: 34px 20px 46px; border-top: 1px solid #14303d;
  color: #6fa9b8; font-size: 14px; }
#play-footer { display: inline-block; margin-top: 10px; text-decoration: none;
  border: 1px solid var(--cyan); border-radius: 10px; padding: 10px 22px; }

@media (max-width: 760px) {
  #hero { padding: 26px 16px; }
  .controls-grid { grid-template-columns: 1fr; }
  #hero-preview { height: 250px; }
  #nav { padding: 10px 12px; }
  #nav nav { gap: 10px; }
}