/* Dance Analyser — shared landing-page styles (dark, on-brand). */
:root {
  --bg: #000;
  --card: #1c1c1e;
  --card2: #2c2c2e;
  --line: #2c2c2e;
  --text: #f5f5f7;
  --muted: #8e8e93;
  --brand: #fa2b62;
  --brand2: #ff4e7e;
  --accent: #4ce1f0;
  --green: #30d158;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 17px/1.65 -apple-system, "SF Pro Text", ui-sans-serif, system-ui, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 10;
  background: rgba(0,0,0,0.72); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}
.nav .wrap { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 16px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand .dot {
  width: 28px; height: 28px; border-radius: 9px;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  display: inline-block;
}
.brand span { color: var(--brand2); }
.nav-links { display: flex; align-items: center; gap: 20px; font-size: 15px; }
.nav-links a { color: var(--muted); }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  background: linear-gradient(135deg, var(--brand), var(--brand2));
  color: #fff; font-weight: 600; padding: 11px 22px; border-radius: 999px;
  border: 0; cursor: pointer; font-size: 16px;
}
.btn:hover { text-decoration: none; filter: brightness(1.06); }
.btn.ghost { background: var(--card2); color: var(--text); }
.nav .btn { padding: 8px 18px; font-size: 15px; }

/* Hero */
.hero { text-align: center; padding: 72px 0 40px; }
.eyebrow { color: var(--accent); font-weight: 600; letter-spacing: .04em; text-transform: uppercase; font-size: 13px; }
h1 { font-size: clamp(34px, 6vw, 56px); line-height: 1.08; letter-spacing: -0.02em; margin: 14px 0 18px; font-weight: 800; }
h1 .grad { background: linear-gradient(90deg, var(--brand2), var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.lede { font-size: 20px; color: #c7c7cc; max-width: 680px; margin: 0 auto 26px; }
.cta-row { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.badges { margin-top: 18px; color: var(--muted); font-size: 14px; }
.badges b { color: var(--green); }

/* Sections */
section { padding: 44px 0; }
h2 { font-size: clamp(26px, 4vw, 36px); letter-spacing: -0.01em; margin: 0 0 10px; font-weight: 800; }
h3 { font-size: 19px; margin: 0 0 6px; font-weight: 700; }
.sub { color: var(--muted); max-width: 640px; margin: 0 0 26px; }
.center { text-align: center; }
.center .sub { margin-left: auto; margin-right: auto; }

.grid { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 20px; padding: 22px;
}
.card p { color: var(--muted); margin: 0; }
.ico { font-size: 26px; margin-bottom: 10px; display: block; }

/* Steps */
.steps { counter-reset: step; display: grid; gap: 14px; }
.step { display: grid; grid-template-columns: 44px 1fr; gap: 16px; align-items: start;
        background: var(--card); border: 1px solid var(--line); border-radius: 16px; padding: 18px 20px; }
.step::before {
  counter-increment: step; content: counter(step);
  width: 36px; height: 36px; border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  color: #fff; font-weight: 700; display: grid; place-items: center;
}
.step p { color: var(--muted); margin: 4px 0 0; }

/* FAQ */
.faq details { border-bottom: 1px solid var(--line); padding: 6px 0; }
.faq summary { cursor: pointer; font-weight: 600; font-size: 18px; padding: 14px 0; list-style: none; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; color: var(--muted); font-weight: 400; }
.faq details[open] summary::after { content: "\2013"; }
.faq p { color: var(--muted); margin: 0 0 14px; }

/* Related */
.related a { display: block; background: var(--card); border: 1px solid var(--line);
             border-radius: 14px; padding: 14px 18px; color: var(--text); }
.related a:hover { border-color: var(--brand2); text-decoration: none; }
.related small { color: var(--muted); display: block; }

/* CTA band */
.band { background: linear-gradient(135deg, rgba(250,43,98,.14), rgba(76,225,240,.12));
        border: 1px solid var(--line); border-radius: 26px; padding: 40px 24px; text-align: center; }

footer { border-top: 1px solid var(--line); color: var(--muted); font-size: 14px; padding: 32px 0 48px; }
footer .cols { display: flex; flex-wrap: wrap; gap: 26px; justify-content: space-between; }
footer a { color: var(--muted); }
footer a:hover { color: var(--text); }
.priv { color: var(--green); }