* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { background: #0a1220; color: #e8f6ff; font-family: "Segoe UI", system-ui, sans-serif; overflow-x: hidden; }
:root { --teal: #2de8c8; --amber: #ffd166; --ink: #0a1220; --panel: #12203a; }
#nav { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; justify-content: space-between; padding: 14px 24px; background: rgba(10,18,32,.85); backdrop-filter: blur(8px); border-bottom: 1px solid rgba(45,232,200,.25); }
.logo { font-weight: 900; letter-spacing: 3px; font-size: 18px; }
.logo span { color: var(--teal); font-weight: 700; }
.nav-play { color: var(--ink); background: var(--teal); text-decoration: none; font-weight: 800; letter-spacing: 2px; padding: 8px 18px; border-radius: 8px; font-size: 13px; }
#hero { position: relative; height: min(92vh, 780px); min-height: 540px; display: flex; align-items: center; justify-content: center; overflow: hidden; }
#hero-preview { position: absolute; inset: 0; width: 100%; height: 100%; }
#hero-copy { position: relative; z-index: 2; text-align: center; padding: 24px; max-width: 760px; background: radial-gradient(ellipse at center, rgba(10,18,32,.82) 20%, transparent 75%); }
#hero-copy h1 { font-size: clamp(34px, 7vw, 72px); letter-spacing: 6px; font-weight: 900; background: linear-gradient(90deg, var(--teal), var(--amber)); -webkit-background-clip: text; background-clip: text; color: transparent; filter: drop-shadow(0 0 24px rgba(45,232,200,.35)); }
.tagline { font-size: clamp(15px, 2.4vw, 21px); margin: 14px 0 26px; opacity: .92; }
#play-now { display: inline-block; text-decoration: none; font-size: 20px; font-weight: 900; letter-spacing: 3px; color: var(--ink); background: linear-gradient(135deg, var(--teal), #7ab8ff); padding: 16px 48px; border-radius: 12px; box-shadow: 0 0 34px rgba(45,232,200,.45); transition: transform .15s, box-shadow .15s; }
#play-now:hover { transform: translateY(-3px) scale(1.03); box-shadow: 0 0 54px rgba(45,232,200,.75); }
.fineprint { margin-top: 16px; font-size: 12px; opacity: .65; letter-spacing: 1px; }
main { max-width: 1100px; margin: 0 auto; padding: 24px; }
section { margin: 64px 0; }
h2 { font-size: clamp(22px, 3.4vw, 34px); letter-spacing: 2px; margin-bottom: 20px; color: var(--teal); }
#about p { font-size: 17px; line-height: 1.8; max-width: 820px; opacity: .9; }
#gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
#gallery figure { background: var(--panel); border: 1px solid rgba(45,232,200,.2); border-radius: 12px; overflow: hidden; }
#gallery img { width: 100%; display: block; aspect-ratio: 8/5; object-fit: cover; }
#gallery figcaption { padding: 10px 14px; font-size: 13px; letter-spacing: 1px; color: var(--amber); }
#features { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 14px; }
#features li { background: var(--panel); border-left: 3px solid var(--teal); border-radius: 0 10px 10px 0; padding: 16px 18px; font-size: 15px; line-height: 1.6; }
#features b { color: var(--teal); }
#controls { background: var(--panel); border: 1px solid rgba(45,232,200,.2); border-radius: 12px; padding: 24px; display: grid; gap: 12px; }
.ctl { display: flex; align-items: center; gap: 16px; }
.key { min-width: 110px; text-align: center; font-weight: 800; font-size: 12px; letter-spacing: 1px; background: #1b2c4a; border: 1px solid rgba(122,184,255,.4); border-radius: 7px; padding: 7px 10px; color: #7ab8ff; }
.goal { margin-top: 10px; line-height: 1.7; }
.goal b { color: var(--amber); }
footer { text-align: center; padding: 34px 20px 44px; border-top: 1px solid rgba(45,232,200,.2); opacity: .8; }
footer a { color: var(--teal); }
@media (max-width: 640px) {
  #hero { min-height: 480px; height: 88vh; }
  #hero-copy h1 { letter-spacing: 3px; }
  #play-now { font-size: 17px; padding: 14px 34px; }
  .ctl { flex-direction: column; align-items: flex-start; gap: 4px; }
  section { margin: 40px 0; }
}