:root {
  --bg: #f6f7f4; --card: #fff; --ink: #17201d; --muted: #5d6b66; --line: #e2e6e1;
  --brand: #0f766e; --brand-2: #115e59; --brand-ink: #fff; --sun: #d97706; --share: #0f766e; --soft: #eaf3f0;
  --radius: 14px; --shadow: 0 1px 2px rgba(0,0,0,.05), 0 6px 20px rgba(0,0,0,.05);
}
@media (prefers-color-scheme: dark) {
  :root { --bg: #0f1513; --card: #161e1b; --ink: #e5ece9; --muted: #93a39d; --line: #26312d;
    --brand: #2dd4bf; --brand-2: #5eead4; --brand-ink: #0b1513; --sun: #fbbf24; --share: #2dd4bf; --soft: #17241f; }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--brand); }
.wrap { max-width: 1140px; margin: 0 auto; padding: 0 20px; }
h1 { font-size: clamp(2rem, 4.6vw, 3.2rem); line-height: 1.1; letter-spacing: -.02em; margin: .3rem 0 1rem; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); line-height: 1.2; letter-spacing: -.01em; margin: 0 0 1rem; }
h3 { font-size: 1.08rem; margin: 0 0 .4rem; }
p { margin: 0 0 1rem; }
.lead { font-size: 1.12rem; color: var(--muted); }
.narrow { max-width: 760px; }
.small { font-size: .88rem; } .muted { color: var(--muted); } .center { text-align: center; }
.eyebrow { color: var(--brand); font-weight: 600; font-size: .9rem; margin: 0; }
section { padding: 72px 0; }
section.band { background: var(--card); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.nav { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; gap: 1.2rem; height: 62px; }
.brand { display: flex; align-items: center; gap: .5rem; font-weight: 750; color: var(--ink); text-decoration: none; font-size: 1.1rem; }
.brand img { width: 30px; height: 30px; }
.nav nav { display: flex; gap: 1.1rem; margin-left: 1rem; }
.nav nav a { color: var(--muted); text-decoration: none; font-size: .95rem; }
.nav nav a:hover { color: var(--ink); }
.nav-cta { margin-left: auto; display: flex; gap: .5rem; }
.btn { display: inline-block; padding: .55rem 1rem; border-radius: 10px; background: var(--brand); color: var(--brand-ink);
  font-weight: 650; text-decoration: none; border: 1px solid var(--brand); cursor: pointer; white-space: nowrap; }
.btn:hover { background: var(--brand-2); border-color: var(--brand-2); }
.btn.ghost { background: transparent; color: var(--brand); }
.btn.big { padding: .8rem 1.3rem; font-size: 1.05rem; }
.cta { display: flex; gap: .7rem; flex-wrap: wrap; margin: 1.5rem 0 1rem; }
.cta.center { justify-content: center; }
.hero { padding: 64px 0 56px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 3rem; align-items: center; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.3rem 1.4rem; box-shadow: var(--shadow); }
.live-head { display: flex; align-items: center; gap: .5rem; font-weight: 650; margin-bottom: .8rem; }
.dot { width: .6rem; height: .6rem; border-radius: 50%; background: #16a34a; box-shadow: 0 0 0 4px rgba(22,163,74,.18); }
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: .9rem 1.2rem; margin-bottom: 1rem; }
.stats b { display: block; font-size: 1.8rem; font-variant-numeric: tabular-nums; letter-spacing: -.01em; }
.stats span { color: var(--muted); font-size: .85rem; }
#s-today { color: var(--share); }
#s-chart { width: 100%; height: 140px; display: block; }
.legend { color: var(--muted); display: flex; align-items: center; gap: .4rem; flex-wrap: wrap; margin-top: .4rem; }
.lg { display: inline-block; width: 12px; height: 12px; border-radius: 3px; margin-left: .6rem; }
.lg:first-child { margin-left: 0; } .lg.sun { background: var(--sun); opacity: .55; } .lg.share { background: var(--share); }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.1rem; }
.num { width: 2rem; height: 2rem; border-radius: 50%; background: var(--soft); color: var(--brand); font-weight: 750;
  display: grid; place-items: center; margin-bottom: .6rem; }
.note { margin-top: 1.5rem; padding: 1rem 1.2rem; border-left: 3px solid var(--brand); background: var(--soft); border-radius: 8px; }
.feat { padding: 1.2rem 1.3rem; border: 1px solid var(--line); border-radius: var(--radius); background: var(--card); }
section.band .feat { background: var(--bg); }
.feat p { color: var(--muted); margin: 0; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
.calc label { display: block; font-size: .88rem; color: var(--muted); margin-bottom: .7rem; }
.calc input { display: block; width: 100%; margin-top: .25rem; padding: .5rem .6rem; border: 1px solid var(--line); border-radius: 8px;
  background: var(--bg); color: var(--ink); font: inherit; }
.calc small { color: var(--muted); }
.row3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: .6rem; }
.result { background: var(--soft); border-radius: 10px; padding: .9rem 1rem; margin: .4rem 0 .8rem; }
.result b { font-size: 1.35rem; color: var(--share); }
.result div { display: flex; justify-content: space-between; gap: 1rem; padding: .15rem 0; }
.shots { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.shots figure { margin: 0; padding: .7rem; }
.shots img { width: 100%; border-radius: 8px; border: 1px solid var(--line); display: block; }
.shots figcaption { color: var(--muted); font-size: .92rem; padding: .7rem .3rem .2rem; }
.checks { list-style: none; padding: 0; margin: 0; }
.checks li { padding: .55rem 0 .55rem 1.8rem; position: relative; border-bottom: 1px solid var(--line); }
.checks li::before { content: "✓"; position: absolute; left: 0; top: .5rem; color: var(--brand); font-weight: 800; }
details { border-bottom: 1px solid var(--line); padding: .7rem 0; }
summary { cursor: pointer; font-weight: 650; }
details p { color: var(--muted); margin: .5rem 0 0; }
.steps { counter-reset: s; list-style: none; padding: 0; display: grid; grid-template-columns: repeat(5, 1fr); gap: 1rem; }
.steps li { counter-increment: s; background: var(--bg); border: 1px solid var(--line); border-radius: var(--radius); padding: 1rem; font-size: .95rem; }
.steps li::before { content: counter(s); display: grid; place-items: center; width: 1.9rem; height: 1.9rem; border-radius: 50%;
  background: var(--brand); color: var(--brand-ink); font-weight: 750; margin-bottom: .6rem; }
.final { padding: 80px 0; }
.foot { border-top: 1px solid var(--line); padding: 1.6rem 0; color: var(--muted); font-size: .9rem; }
.foot .wrap { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
code { font-family: ui-monospace, Menlo, monospace; font-size: .88em; background: var(--soft); padding: 0 .3rem; border-radius: 4px; }
@media (max-width: 920px) {
  .hero-grid, .two { grid-template-columns: 1fr; gap: 2rem; }
  .grid3 { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .nav nav { display: none; }
}
@media (max-width: 600px) {
  section { padding: 48px 0; }
  .grid3, .shots, .steps { grid-template-columns: 1fr; }
  .nav-cta .ghost { display: none; }
  .stats b { font-size: 1.5rem; }
}