:root {
  color-scheme: dark;
  --bg: #02040c;
  --panel: rgba(4, 12, 34, .72);
  --panel-strong: rgba(5, 18, 52, .9);
  --line: rgba(38, 156, 255, .42);
  --line-hot: rgba(85, 241, 255, .88);
  --text: #f5f8ff;
  --muted: #9fb1d5;
  --blue: #147dff;
  --cyan: #53f6ff;
  --shadow: 0 0 32px rgba(20, 125, 255, .35), 0 0 72px rgba(0, 217, 255, .12);
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 50% 18%, rgba(0, 104, 255, .18), transparent 30rem),
    radial-gradient(circle at 85% 65%, rgba(0, 217, 255, .12), transparent 30rem),
    linear-gradient(180deg, #02040c 0%, #030714 45%, #010207 100%);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(21, 116, 255, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(21, 116, 255, .09) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(circle at 50% 42%, black 0%, transparent 72%);
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent, rgba(75, 214, 255, .10), transparent),
    radial-gradient(circle at 50% 50%, transparent 0%, rgba(0, 0, 0, .56) 72%);
  mix-blend-mode: screen;
  opacity: .55;
}

a { color: inherit; text-decoration: none; }
.container { width: min(var(--max), calc(100% - 40px)); margin: 0 auto; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(73, 209, 255, .2);
  background: rgba(2, 4, 12, .72);
  backdrop-filter: blur(18px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 0;
}

.brand { display: inline-flex; align-items: center; gap: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border: 1px solid var(--line-hot);
  border-radius: 12px;
  color: var(--cyan);
  background: linear-gradient(145deg, rgba(4, 20, 58, .95), rgba(0, 0, 0, .65));
  box-shadow: 0 0 18px rgba(83, 246, 255, .45);
  font-weight: 900;
}

.nav-links { display: flex; align-items: center; gap: 20px; color: var(--muted); font-size: .92rem; }
.nav-links a:hover { color: var(--cyan); text-shadow: 0 0 12px rgba(83, 246, 255, .72); }

.hero { position: relative; padding: 76px 0 52px; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(360px, 540px); gap: 42px; align-items: center; }
.kicker { color: var(--cyan); letter-spacing: .26em; text-transform: uppercase; font-size: .8rem; font-weight: 800; text-shadow: 0 0 18px rgba(83, 246, 255, .78); }
h1 { margin: 12px 0 18px; font-size: clamp(3.4rem, 8vw, 7.8rem); line-height: .86; letter-spacing: -.06em; text-transform: uppercase; }
h1 span { color: transparent; -webkit-text-stroke: 1px rgba(129, 245, 255, .92); text-shadow: 0 0 30px rgba(0, 128, 255, .55); }
.lede { max-width: 690px; color: #d9e6ff; font-size: clamp(1.05rem, 2vw, 1.32rem); line-height: 1.72; }

.cta-row { display: flex; flex-wrap: wrap; gap: 14px; margin: 32px 0 26px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid var(--line-hot);
  border-radius: 14px;
  color: #eaffff;
  background: linear-gradient(180deg, rgba(19, 136, 255, .24), rgba(0, 20, 62, .72));
  box-shadow: var(--shadow), inset 0 0 18px rgba(83, 246, 255, .12);
  font-weight: 800;
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 0 34px rgba(83, 246, 255, .45); }
.btn.secondary { border-color: rgba(91, 160, 255, .42); color: #c8d8ff; background: rgba(7, 15, 36, .68); }

.status-strip { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; max-width: 680px; }
.status-card { padding: 14px; border: 1px solid rgba(75, 214, 255, .28); border-radius: 16px; background: rgba(4, 12, 34, .58); }
.status-card strong { display: block; color: var(--cyan); font-size: 1.25rem; }
.status-card span { color: var(--muted); font-size: .88rem; }

.hero-art {
  position: relative;
  min-height: 500px;
  border: 1px solid rgba(83, 246, 255, .25);
  border-radius: 34px;
  overflow: hidden;
  background: rgba(0, 0, 0, .42);
  box-shadow: var(--shadow);
}
.hero-art img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .98; }
.hero-art::before {
  content: "";
  position: absolute;
  inset: 18px;
  z-index: 2;
  border: 1px solid rgba(83, 246, 255, .32);
  border-radius: 26px;
  pointer-events: none;
}
.hero-art::after {
  content: "LIVE LAN GRID";
  position: absolute;
  left: 28px;
  bottom: 28px;
  z-index: 3;
  color: rgba(203, 248, 255, .94);
  letter-spacing: .32em;
  font-weight: 900;
  font-size: .74rem;
  text-shadow: 0 0 20px rgba(83, 246, 255, .9);
}

.section { padding: 62px 0; }
.section h2 { margin: 0 0 16px; font-size: clamp(2rem, 4vw, 3.2rem); letter-spacing: -.04em; }
.section-intro { margin: 0 0 28px; max-width: 820px; color: var(--muted); line-height: 1.72; }

.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.card {
  position: relative;
  padding: 24px;
  min-height: 245px;
  border: 1px solid rgba(83, 246, 255, .22);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(7, 24, 66, .74), rgba(2, 6, 18, .86));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .05), 0 0 40px rgba(20, 125, 255, .10);
  overflow: hidden;
}
.card::before { content: ""; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(83, 246, 255, .18), transparent 34%); opacity: .55; }
.card > * { position: relative; z-index: 1; }
.card h3 { margin: 0 0 12px; color: var(--cyan); font-size: 1.35rem; }
.card p { color: #c6d4f4; line-height: 1.65; }
.card code { color: #e6fbff; background: rgba(0, 0, 0, .34); border: 1px solid rgba(83, 246, 255, .16); padding: 4px 7px; border-radius: 8px; }

.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; counter-reset: step; }
.step { padding: 20px; border: 1px solid rgba(60, 149, 255, .28); border-radius: 20px; background: rgba(3, 11, 30, .68); }
.step::before { counter-increment: step; content: "0" counter(step); display: inline-grid; place-items: center; width: 38px; height: 38px; margin-bottom: 16px; color: var(--cyan); border: 1px solid rgba(83, 246, 255, .5); border-radius: 12px; box-shadow: 0 0 18px rgba(83, 246, 255, .25); font-weight: 900; }
.step h3 { margin: 0 0 8px; }
.step p { margin: 0; color: var(--muted); line-height: 1.6; }

.terminal {
  border: 1px solid rgba(83, 246, 255, .32);
  border-radius: 24px;
  background: rgba(0, 0, 0, .72);
  box-shadow: var(--shadow);
  overflow: hidden;
}
.terminal-bar { display: flex; gap: 8px; padding: 13px 16px; border-bottom: 1px solid rgba(83, 246, 255, .18); background: rgba(10, 22, 54, .78); }
.terminal-bar span { width: 11px; height: 11px; border-radius: 999px; background: var(--cyan); box-shadow: 0 0 14px var(--cyan); opacity: .72; }
.terminal pre { margin: 0; padding: 22px; overflow-x: auto; color: #d9f8ff; font: 500 .94rem/1.7 ui-monospace, SFMono-Regular, Consolas, monospace; }
.terminal b { color: var(--cyan); }

.footer { padding: 32px 0 48px; color: #7f91bd; border-top: 1px solid rgba(83, 246, 255, .15); }
.footer .container { display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap; }

@media (max-width: 920px) {
  .hero-grid, .cards, .steps { grid-template-columns: 1fr; }
  .hero-art { min-height: 360px; }
  .status-strip { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}