:root {
  color-scheme: dark;
  --bg: #050509;
  --panel: #101014;
  --panel-alt: #15151a;
  --border: #2a2a2e;
  --text: #e0e0e0;
  --muted: #9a9aa2;
  --green: #4ade80;
  --cyan: #22d3ee;
  --yellow: #facc15;
  --mono: "JetBrains Mono", "Cascadia Code", "SFMono-Regular", Consolas, monospace;
}

* { box-sizing: border-box; }

html { background: var(--bg); }

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 76% 12%, rgb(34 211 238 / 8%), transparent 28rem),
    linear-gradient(180deg, #08080d 0%, var(--bg) 72%);
  color: var(--text);
  font-family: var(--mono);
  font-size: 16px;
  line-height: 1.6;
}

body::before {
  position: fixed;
  z-index: -1;
  inset: 0;
  background-image:
    linear-gradient(rgb(74 222 128 / 3%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(34 211 238 / 2%) 1px, transparent 1px);
  background-size: 44px 44px;
  content: "";
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}

a { color: var(--cyan); }

a:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  z-index: 10;
  top: -5rem;
  left: 1rem;
  padding: .6rem 1rem;
  background: var(--yellow);
  color: #050509;
}

.skip-link:focus { top: 1rem; }

.scanline {
  position: fixed;
  z-index: 5;
  top: -12%;
  right: 0;
  left: 0;
  height: 14%;
  pointer-events: none;
  background: linear-gradient(to bottom, transparent, rgb(74 222 128 / 4%), transparent);
  animation: scan 9s linear infinite;
}

.status-bar,
footer {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: .65rem clamp(1rem, 4vw, 3rem);
  border-color: var(--border);
  border-style: solid;
  background: rgb(10 10 14 / 92%);
  color: var(--muted);
  font-size: .78rem;
  letter-spacing: .04em;
}

.status-bar { border-width: 0 0 1px; }
.brand { color: var(--green); font-weight: 700; text-decoration: none; }
.divider { margin: 0 .7rem; color: #55555d; }
.status { color: var(--yellow); }
.docs-link { margin-left: auto; text-decoration: none; }

.terminal {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(4rem, 10vw, 8rem) 0 5rem;
}

.hero { max-width: 850px; }

.eyebrow,
.number {
  color: var(--green);
  font-size: .75rem;
  letter-spacing: .12em;
}

.wordmark {
  margin: 1.4rem 0;
  color: var(--green);
  font-size: clamp(.85rem, 2.2vw, 1.15rem);
  line-height: 1.2;
  text-shadow: 0 0 16px rgb(74 222 128 / 30%);
}

h1 {
  max-width: 760px;
  margin: 0;
  color: #f1f1f3;
  font-size: clamp(2.8rem, 8vw, 6.8rem);
  line-height: .95;
  letter-spacing: -.075em;
}

.lede {
  max-width: 720px;
  margin: 2rem 0 0;
  color: var(--cyan);
  font-size: clamp(1.1rem, 2.5vw, 1.55rem);
  line-height: 1.45;
}

.detail { max-width: 740px; margin: 1rem 0 0; color: var(--muted); }

.actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.25rem;
  margin-top: 2.5rem;
}

.primary-action {
  display: inline-block;
  padding: .85rem 1.1rem;
  border: 1px solid var(--green);
  background: rgb(74 222 128 / 7%);
  box-shadow: 0 0 0 1px rgb(74 222 128 / 8%) inset, 0 0 28px rgb(74 222 128 / 7%);
  color: var(--green);
  font-weight: 700;
  text-decoration: none;
  transition: background 150ms ease, color 150ms ease, box-shadow 150ms ease;
}

.primary-action:hover {
  background: var(--green);
  box-shadow: 0 0 34px rgb(74 222 128 / 20%);
  color: #050509;
}

.primary-action[aria-disabled="true"] { cursor: not-allowed; opacity: .45; }
.form-status { color: var(--muted); font-size: .78rem; }
.cursor { animation: blink 1s steps(2, start) infinite; }

.console {
  margin-top: clamp(4rem, 9vw, 7rem);
  border: 1px solid var(--border);
  background: rgb(16 16 20 / 84%);
  box-shadow: 0 18px 60px rgb(0 0 0 / 28%);
}

.console__header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: .65rem .9rem;
  border-bottom: 1px solid var(--border);
  background: var(--panel-alt);
  color: var(--muted);
  font-size: .72rem;
}

.console__body { padding: 1rem clamp(1rem, 3vw, 1.6rem); }
.console__body p { margin: .4rem 0; }
.prompt { display: inline-block; width: 7rem; color: var(--cyan); }
.muted { color: var(--muted); }

.capabilities {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.capabilities article { min-height: 210px; padding: 1.5rem; background: var(--panel); }
.capabilities h2 { margin: .65rem 0 .5rem; color: var(--text); font-size: 1rem; }
.capabilities p { margin: 0; color: var(--muted); font-size: .86rem; }

footer { justify-content: space-between; gap: 1rem; border-width: 1px 0 0; }
footer span:last-child { color: var(--yellow); }

@keyframes blink { 50% { opacity: 0; } }
@keyframes scan { to { transform: translateY(900%); } }

@media (max-width: 720px) {
  .status-bar .divider,
  .status-bar > span:not(.status) { display: none; }
  .status { margin-left: .8rem; }
  .terminal { padding-top: 3.5rem; }
  .capabilities { grid-template-columns: 1fr; }
  .console__header { align-items: flex-start; flex-direction: column; }
  .prompt { width: 5.8rem; }
  footer { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  .scanline,
  .cursor { animation: none; }
}