/* Chaos HUD's page: the app's own look. Near-black with a hint of green, flat cards with a hairline
   edge, one acid-green accent, Segoe UI Variable on Windows and Inter everywhere else. */
:root {
  --bg: #0b0e0a; --bg-2: #0f130e; --panel: #151a13; --panel-2: #1e251b; --line: #262e22;
  --ink: #eef4e8; --muted: #8f9c86; --soft: #c9d3c1; --accent: #b4f223; --on-accent: #0b1005;
  --display: 'Segoe UI Variable Display', 'Segoe UI', 'Inter', system-ui, sans-serif;
  --text: 'Segoe UI Variable Text', 'Segoe UI', 'Inter', system-ui, sans-serif;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 17px/1.6 var(--text); -webkit-font-smoothing: antialiased; }
a { color: var(--accent); }
a:hover { color: #d4fa72; }
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3 { font-family: var(--display); font-weight: 700; letter-spacing: -.3px; line-height: 1.15; margin: 0 0 14px; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.kicker { font: 700 12px var(--text); letter-spacing: 1.6px; text-transform: uppercase; color: var(--accent); margin: 0 0 10px; }
.note { font-size: 15px; color: var(--muted); }
.small { font-size: 15px; color: var(--muted); }
.intro { color: var(--soft); max-width: 760px; margin: 0 0 28px; }
section { scroll-margin-top: 80px; }

/* header */
.top { position: sticky; top: 0; z-index: 5; background: rgba(15, 19, 14, .92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 18px; height: 66px; }
.brand { display: flex; align-items: center; gap: 11px; text-decoration: none; color: var(--ink); }
.brand img { width: 40px; height: 40px; border-radius: 10px; }
.brand b { display: block; font: 700 19px var(--display); }
.brand small { display: block; font-size: 12px; color: var(--muted); margin-top: -3px; }
.top nav { margin-left: auto; display: flex; gap: 2px; }
.top nav a { color: var(--muted); text-decoration: none; font-weight: 600; font-size: 15px; padding: 8px 12px; border-radius: 8px; }
.top nav a:hover { color: var(--ink); background: var(--panel); }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: 8px; font: 600 16px var(--text); color: var(--ink); background: var(--panel-2);
       border: 1px solid var(--line); border-radius: 10px; padding: 12px 22px; text-decoration: none; }
.btn:hover { background: #272f23; color: var(--ink); }
.btn.primary { background: var(--accent); border-color: transparent; color: var(--on-accent); font-weight: 700; }
.btn.primary:hover { background: #c6f54f; color: var(--on-accent); }
.btn.small { padding: 8px 14px; font-size: 14px; border-radius: 8px; }
.btn.soon { color: var(--muted); cursor: default; }
.btn.soon:hover { background: var(--panel-2); color: var(--muted); }
.row { display: flex; gap: 12px; flex-wrap: wrap; margin: 24px 0 12px; }

/* hero */
.hero { display: grid; grid-template-columns: 1fr 1.15fr; gap: 48px; align-items: center; padding-top: 64px; padding-bottom: 40px; }
.hero h1 { font-size: clamp(34px, 4.6vw, 52px); }
.lede { font-size: 18px; color: var(--soft); margin: 0; }
.shot { margin: 0; border-radius: 14px; overflow: hidden; border: 1px solid var(--line); box-shadow: 0 18px 50px rgba(0, 0, 0, .5); background: var(--panel); }
.shot figcaption { font-size: 14px; color: var(--muted); padding: 10px 14px; border-top: 1px solid var(--line); }

.facts { list-style: none; padding: 0; margin: 10px auto 30px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.facts li { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 14px 16px; font-size: 15px; color: var(--muted); }
.facts b { display: block; color: var(--ink); font-size: 17px; }

/* how it works: numbered steps */
#how { padding-top: 40px; }
.section-title { font-size: clamp(26px, 3vw, 34px); margin: 50px 0 22px; }
.section-title.tight { margin-top: 0; }
.steps { list-style: none; counter-reset: step; margin: 0; padding: 0; display: grid; gap: 18px; }
.steps li { counter-increment: step; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px; align-items: center;
            background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.steps li .shot { box-shadow: none; }
.steps li > div { position: relative; padding-left: 60px; }
.steps li > div::before { content: counter(step); position: absolute; left: 0; top: 0; width: 42px; height: 42px; border-radius: 50%;
                          background: var(--accent); color: var(--on-accent); font: 700 20px var(--display); display: grid; place-items: center; }
.steps b { display: block; font: 700 20px var(--display); margin-bottom: 6px; }
.steps p { margin: 0; color: var(--soft); }
#how .note { margin-top: 22px; }

/* features */
.features { padding-top: 50px; }
.feature { display: grid; grid-template-columns: 1fr 1.1fr; gap: 48px; align-items: center; padding: 36px 0; }
.feature.flip .copy { order: 2; }
.feature h3 { font-size: clamp(24px, 2.8vw, 30px); }
.feature p { color: var(--soft); margin: 0 0 12px; }
.band { background: var(--bg-2); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); margin: 30px 0; padding: 56px 0 20px; }
.band .feature { padding: 36px 0 30px; }

/* on stream: the two panes */
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 6px 0 10px; }
.pane { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 22px 24px; }
.pane.accent { border-color: rgba(180, 242, 35, .45); }
.pane b { display: block; font: 700 19px var(--display); margin-bottom: 8px; }
.pane.accent b { color: var(--accent); }
.pane p { margin: 0; color: var(--soft); }

.grid { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.grid li { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 18px 20px; color: var(--muted); font-size: 15px; }
.grid b { display: block; color: var(--ink); font: 700 17px var(--display); margin-bottom: 6px; }

.testing { text-align: center; padding: 20px 20px 40px; max-width: 760px; }
.testing h2 { font-size: clamp(28px, 3.4vw, 38px); }
.testing p { color: var(--soft); margin: 0 0 26px; }

/* faq */
.faq details { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; margin: 0 0 10px; padding: 0 20px; }
.faq summary { cursor: pointer; font-weight: 600; padding: 16px 0; list-style: none; position: relative; padding-right: 30px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; position: absolute; right: 0; top: 13px; font-size: 22px; color: var(--accent); }
.faq details[open] summary::after { content: '\2212'; }
.faq details p { margin: 0 0 16px; color: var(--soft); }

/* support */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.card { display: block; background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 20px; text-decoration: none; color: var(--muted); font-size: 15px; }
a.card:hover { border-color: #3a4733; color: var(--muted); }
.card b { display: block; color: var(--ink); font: 700 17px var(--display); margin-bottom: 6px; word-break: break-word; }

.foot { border-top: 1px solid var(--line); background: var(--bg-2); margin-top: 60px; padding: 26px 0 40px; font-size: 14px; color: var(--muted); }
.foot p { margin: 4px 0; }
.foot a { color: var(--muted); }
.foot a:hover { color: var(--ink); }

@media (max-width: 900px) {
  .top nav { display: none; }
  .top .btn.small { margin-left: auto; }
  .hero, .feature, .steps li, .two { grid-template-columns: 1fr; gap: 20px; }
  .hero { padding-top: 36px; }
  .feature.flip .copy { order: 0; }
  .facts { grid-template-columns: 1fr 1fr; }
  .grid, .cards { grid-template-columns: 1fr; }
  .feature { padding: 26px 0; }
  .steps li > div { padding-left: 54px; }
}