:root {
  --bg: #f6f7f5; --surface: #ffffff; --surface-2: #f0f2ef; --text: #16201b; --text-2: #46524b; --text-3: #6d7872;
  --border: #e1e5e1; --accent: #0f766e; --accent-strong: #0b5f58; --on-accent: #ffffff; --warning: #b45309; --critical: #b91c1c;
  --radius: 14px; --shadow: 0 1px 2px rgba(16, 24, 20, .06), 0 8px 24px rgba(16, 24, 20, .06);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1412; --surface: #161d1a; --surface-2: #1d2622; --text: #e8eeea; --text-2: #b4c0b9; --text-3: #8a968f;
    --border: #28332e; --accent: #2bb3a3; --accent-strong: #3cc8b7; --on-accent: #06201c; --warning: #f59e0b; --critical: #f87171;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 15px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
.wrap { max-width: 1040px; margin: 0 auto; padding: 0 20px; }
header.site { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 88%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--border); }
header.site .wrap { display: flex; align-items: center; gap: 18px; height: 60px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--text); text-decoration: none; font-size: 17px; }
.brand span.mark { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 8px; background: var(--accent); color: var(--on-accent); font-weight: 800; }
nav.links { display: flex; gap: 18px; margin-left: auto; align-items: center; }
nav.links a { color: var(--text-2); text-decoration: none; font-weight: 550; font-size: 14px; }
nav.links a:hover, nav.links a[aria-current="page"] { color: var(--text); }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; height: 40px; padding: 0 18px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface); color: var(--text); font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; }
.btn:hover { border-color: var(--text-3); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--on-accent); }
.btn.primary:hover { background: var(--accent-strong); }
.btn.sm { height: 34px; padding: 0 12px; font-size: 14px; }
.btn:disabled { opacity: .6; cursor: not-allowed; }
.hero { padding: 64px 0 40px; }
.hero h1 { font-size: clamp(28px, 4vw, 42px); line-height: 1.15; letter-spacing: -.02em; margin: 0 0 14px; max-width: 760px; }
.hero p { font-size: 17px; color: var(--text-2); max-width: 680px; margin: 0 0 24px; }
.actions { display: flex; gap: 10px; flex-wrap: wrap; }
section { padding: 32px 0; }
h2 { font-size: 22px; letter-spacing: -.01em; margin: 0 0 16px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; box-shadow: var(--shadow); }
.card h3 { margin: 0 0 6px; font-size: 16px; }
.card p { margin: 0; color: var(--text-2); font-size: 14px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; }
.stat b { display: block; font-size: 28px; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.stat span { color: var(--text-2); font-size: 13px; }
.muted { color: var(--text-2); }
.faint { color: var(--text-3); font-size: 13px; }
.steps { counter-reset: step; display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.steps .card::before { counter-increment: step; content: counter(step); display: grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--surface-2); font-weight: 700; margin-bottom: 8px; }
footer.site { border-top: 1px solid var(--border); padding: 24px 0 40px; margin-top: 32px; color: var(--text-3); font-size: 13px; }
footer.site .wrap { display: flex; gap: 18px; flex-wrap: wrap; }
/* form */
form.report { display: grid; gap: 16px; max-width: 680px; }
label.field { display: grid; gap: 6px; font-weight: 600; font-size: 14px; }
label.field small { font-weight: 400; color: var(--text-3); }
input[type=text], input[type=url], select, textarea { width: 100%; font: inherit; color: var(--text); background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; }
textarea { min-height: 110px; resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid color-mix(in srgb, var(--accent) 40%, transparent); border-color: var(--accent); }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; color: var(--text-2); }
.check input { margin-top: 4px; width: 18px; height: 18px; accent-color: var(--accent); }
.notice { background: var(--surface-2); border-radius: 12px; padding: 12px 14px; color: var(--text-2); font-size: 14px; }
.message { border-radius: 12px; padding: 14px 16px; font-weight: 550; }
.message.ok { background: color-mix(in srgb, var(--accent) 14%, var(--surface)); color: var(--text); }
.message.error { background: color-mix(in srgb, var(--critical) 12%, var(--surface)); color: var(--text); }
.hidden-field { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.prose { max-width: 760px; }
.prose h2 { margin-top: 28px; }
.prose p, .prose li { color: var(--text-2); }
nav.links a { white-space: nowrap; }
@media (max-width: 640px) {
  nav.links a.hide-mobile { display: none; }
  header.site .wrap { gap: 10px; padding: 0 14px; }
  nav.links { gap: 10px; }
  nav.links a { font-size: 13px; }
  nav.links .btn.sm { height: 30px; padding: 0 9px; }
  .brand { font-size: 15px; gap: 8px; }
  .brand span.mark { width: 26px; height: 26px; }
  .hero { padding: 40px 0 24px; }
}