:root { --ink:#0c0f1e; --ink2:#131a33; --teal:#27e0c8; --gold:#ffc46b; --rose:#ff6e8a; --txt:#e8ecff; --dim:#9aa5cc; }
* { box-sizing: border-box; margin: 0; padding: 0; }
body { background: radial-gradient(1200px 700px at 70% -10%, #1b2450 0%, var(--ink) 55%); color: var(--txt);
  font-family: "Avenir Next", Futura, "Trebuchet MS", system-ui, sans-serif; line-height: 1.55; overflow-x: hidden; }
.wrap { max-width: 1060px; margin: 0 auto; padding: 0 20px; }
header.nav { display: flex; align-items: center; gap: 14px; padding: 18px 0; }
.logo { font-weight: 800; letter-spacing: .12em; font-size: 15px; color: var(--teal); }
.hero { display: grid; grid-template-columns: 1.1fr .9fr; gap: 28px; align-items: center; padding: 34px 0 46px; }
h1 { font-size: clamp(34px, 6vw, 64px); line-height: 1.04; letter-spacing: .02em;
  background: linear-gradient(92deg, var(--teal), var(--gold)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.tagline { margin-top: 14px; font-size: clamp(15px, 2vw, 19px); color: var(--dim); max-width: 46ch; }
.cta { display: inline-block; margin-top: 24px; padding: 14px 34px; border-radius: 999px; font-weight: 800;
  letter-spacing: .08em; text-decoration: none; color: #081016; background: linear-gradient(92deg, var(--teal), #7cf5df);
  box-shadow: 0 8px 30px rgba(39,224,200,.35); transition: transform .15s ease; }
.cta:hover { transform: translateY(-2px) scale(1.03); }
#hero-preview { width: 100%; height: 280px; border-radius: 18px; background: #0a0d1c;
  box-shadow: 0 14px 44px rgba(0,0,0,.5), inset 0 0 0 1px rgba(39,224,200,.25); }
section { padding: 34px 0; }
h2 { font-size: 22px; letter-spacing: .14em; color: var(--gold); text-transform: uppercase; margin-bottom: 18px; }
#features { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 12px 22px; }
#features li { padding-left: 26px; position: relative; color: var(--dim); }
#features li::before { content: "◆"; position: absolute; left: 0; color: var(--teal); }
#controls { background: var(--ink2); border: 1px solid rgba(39,224,200,.22); border-radius: 16px; padding: 22px 26px; }
#controls kbd { background: #0a0e20; border: 1px solid #33406e; border-bottom-width: 3px; border-radius: 6px;
  padding: 2px 8px; font-family: ui-monospace, monospace; font-size: 13px; color: var(--teal); }
#controls p { margin: 6px 0; color: var(--dim); }
#gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
#gallery img { width: 100%; border-radius: 12px; border: 1px solid rgba(255,196,107,.25); }
footer { padding: 26px 0 40px; color: #5f6a92; font-size: 13px; }
@media (max-width: 760px) {
  .hero { grid-template-columns: 1fr; padding: 18px 0 30px; }
  #features { grid-template-columns: 1fr; }
  #gallery { grid-template-columns: 1fr 1fr; }
  #hero-preview { height: 210px; }
}