* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
  --ink: #e8ecff; --dim: #a9b4d8; --bg: #0b0e24; --panel: #131836;
  --brass: #ffce7a; --coral: #ff8f5e; --cyan: #59e6ff; --pink: #ff5fa2;
}
html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--ink); font-family: "Segoe UI", system-ui, sans-serif;
  overflow-x: hidden; }
a { color: var(--cyan); }
.topbar { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px;
  padding: 14px 4vw; border-bottom: 1px solid rgba(122,140,255,.18); position: sticky; top: 0;
  background: rgba(11,14,36,.85); backdrop-filter: blur(6px); z-index: 10; }
.logo { font-weight: 800; letter-spacing: .18em; color: var(--cyan); }
.topbar nav a { color: var(--dim); text-decoration: none; margin-left: 16px; font-size: 14px; }
.topbar nav a:hover { color: var(--ink); }

.hero { display: flex; flex-wrap: wrap; align-items: center; gap: 4vmin; padding: 6vmin 4vw; }
.hero-text { flex: 1 1 340px; min-width: 280px; }
h1 { font-size: clamp(40px, 9vw, 84px); letter-spacing: .1em; line-height: 1.02;
  background: linear-gradient(120deg, var(--cyan), #a6b8ff 55%, var(--brass));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 0 40px rgba(89,230,255,.25); }
.tagline { margin: 12px 0 22px; font-size: clamp(16px, 2.6vw, 22px); color: var(--brass); }
.fineprint { margin-top: 14px; font-size: 13px; color: var(--dim); }
.btn { display: inline-block; background: linear-gradient(135deg, #ffce7a, #ff8f5e);
  color: #221200; font-weight: 800; font-size: 19px; padding: 14px 40px; border-radius: 999px;
  text-decoration: none; letter-spacing: .06em; box-shadow: 0 8px 30px rgba(255,160,90,.35); }
.btn:hover { transform: translateY(-2px); box-shadow: 0 12px 36px rgba(255,160,90,.5); }
#hero-preview { flex: 1 1 420px; min-width: 260px; width: 100%; max-width: 760px; height: auto;
  aspect-ratio: 16/10; border-radius: 18px; border: 1px solid rgba(122,140,255,.25);
  background: #0b0e24; box-shadow: 0 20px 60px rgba(0,0,20,.55); }

main { max-width: 1100px; margin: 0 auto; padding: 2vmin 4vw 6vmin; }
section { margin: 6vmin 0; }
h2 { font-size: clamp(22px, 4.4vw, 34px); color: var(--cyan); letter-spacing: .08em; margin-bottom: 18px; }
#features { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px; }
#features li { background: var(--panel); border: 1px solid rgba(122,140,255,.2); border-radius: 14px;
  padding: 16px 18px; font-size: 15px; line-height: 1.55; color: var(--dim); }
#features b { color: var(--ink); display: block; margin-bottom: 4px; }

.gallery-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
#gallery figure { background: var(--panel); border: 1px solid rgba(122,140,255,.2); border-radius: 14px;
  overflow: hidden; }
#gallery img { display: block; width: 100%; height: auto; }
#gallery figcaption { padding: 10px 14px; font-size: 13px; color: var(--dim); }

.controls-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
#controls div { background: var(--panel); border: 1px solid rgba(122,140,255,.2); border-radius: 14px;
  padding: 18px 20px; }
#controls h3 { color: var(--brass); margin-bottom: 8px; font-size: 17px; }
#controls p, #controls li { color: var(--dim); font-size: 15px; line-height: 1.7; }
#controls ul { list-style: none; }
footer { text-align: center; padding: 3vmin 4vw 6vmin; color: var(--dim); font-size: 13px;
  border-top: 1px solid rgba(122,140,255,.15); }
@media (max-width: 500px) {
  .topbar nav a { margin-left: 10px; }
  .hero { padding-top: 4vmin; }
}