:root {
  color-scheme: dark;
  --bg: #07111f;
  --panel: #0d1b2d;
  --panel-border: #213652;
  --text: #f3f7fc;
  --muted: #9eb0c5;
  --accent: #56d6bf;
  --accent-dark: #052c27;
  --danger: #ff9a9a;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background: radial-gradient(circle at top left, #173254 0, transparent 34rem), var(--bg);
}

main { width: min(980px, calc(100% - 32px)); margin: 0 auto; padding: 56px 0; }
header { margin-bottom: 28px; }
h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 12px; font-size: clamp(2rem, 6vw, 3.75rem); letter-spacing: -.045em; }
h2 { margin-bottom: 18px; font-size: 1.05rem; }
.eyebrow { margin-bottom: 10px; color: var(--accent); font-size: .75rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; }
.lede, .hint { color: var(--muted); }
.lede { max-width: 700px; line-height: 1.6; }
.hint { margin: 8px 0 0; font-size: .84rem; line-height: 1.45; }

.panel {
  margin: 18px 0;
  padding: clamp(18px, 4vw, 28px);
  border: 1px solid var(--panel-border);
  border-radius: 16px;
  background: color-mix(in srgb, var(--panel) 94%, transparent);
  box-shadow: 0 18px 50px rgb(0 0 0 / 18%);
}

label { display: block; margin: 16px 0 7px; font-size: .88rem; font-weight: 700; }
input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #38506e;
  border-radius: 9px;
  color: var(--text);
  background: #081525;
  font: inherit;
}
input:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
.actions { display: flex; gap: 10px; margin-top: 20px; }
button {
  padding: 11px 18px;
  border: 1px solid var(--accent);
  border-radius: 9px;
  color: var(--accent-dark);
  background: var(--accent);
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}
button:disabled { cursor: wait; opacity: .55; }
button.secondary { color: var(--text); border-color: #415a78; background: #15263b; }
button.compact { padding: 7px 11px; font-size: .8rem; }
.section-heading { display: flex; align-items: center; justify-content: space-between; gap: 14px; }
.section-heading h2 { margin-bottom: 0; }
.status { margin: 0; color: var(--accent); font-size: .88rem; text-align: right; }
.status.error { color: var(--danger); }
video { display: block; width: 100%; min-height: 220px; margin-top: 20px; border-radius: 10px; background: #000; }
pre { min-height: 180px; max-height: 360px; margin: 20px 0 0; padding: 14px; overflow: auto; border-radius: 9px; color: #c8d6e7; background: #050c16; font: 12px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; white-space: pre-wrap; overflow-wrap: anywhere; }

@media (max-width: 560px) {
  main { width: min(100% - 20px, 980px); padding: 28px 0; }
  .section-heading { align-items: flex-start; flex-direction: column; }
  .status { text-align: left; }
  video { min-height: 170px; }
}