:root {
  --bg: #f4f6fb;
  --card: #ffffff;
  --ink: #0f172a;
  --ink-2: #334155;
  --muted: #64748b;
  --line: #e6eaf2;
  --accent: #2563eb;
  --accent-soft: #eef4ff;
  --good: #16a34a;  --good-bg: #e9f7ef;
  --warn: #b45309;  --warn-bg: #fdf3e2;
  --bad:  #dc2626;  --bad-bg:  #fdeaea;
  --radius: 16px;
  --shadow: 0 1px 2px rgba(16,24,40,.04), 0 6px 20px rgba(16,24,40,.06);
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--ink);
  background: radial-gradient(1100px 520px at 82% -18%, #e7efff 0%, var(--bg) 58%) no-repeat, var(--bg);
  min-height: 100vh;
}
.wrap { width: min(1040px, 92vw); margin: 0 auto; }
svg { display: block; }

/* Header */
.site-header { padding: 18px 0; }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; }
.logo { font-weight: 800; font-size: 22px; color: var(--ink); text-decoration: none; letter-spacing: -.5px; }
.logo span { color: var(--accent); }
nav a { color: var(--muted); text-decoration: none; font-size: 14px; }
nav a:hover { color: var(--ink); }

/* Hero + search */
.hero { text-align: center; padding: 52px 0 26px; }
.hero h1 { font-size: clamp(30px, 5vw, 50px); margin: 0 0 10px; letter-spacing: -1px; }
.hero h1 em { color: var(--accent); font-style: normal; }
.sub { color: var(--muted); max-width: 600px; margin: 0 auto 28px; }
#lookup { display: flex; gap: 10px; max-width: 560px; margin: 0 auto; }
#domain {
  flex: 1; padding: 14px 16px; border-radius: var(--radius);
  border: 1px solid var(--line); background: var(--card); color: var(--ink); font-size: 16px;
  box-shadow: var(--shadow);
}
#domain:focus { outline: 2px solid var(--accent); border-color: transparent; }
button[type=submit] {
  padding: 14px 24px; border: 0; border-radius: var(--radius); cursor: pointer;
  background: var(--accent); color: #fff; font-weight: 700; font-size: 16px;
}
button[type=submit]:hover { background: #1d4ed8; }
.examples { color: var(--muted); font-size: 14px; margin-top: 16px; }
.chip {
  background: var(--card); border: 1px solid var(--line); color: var(--ink-2);
  padding: 5px 12px; border-radius: 999px; cursor: pointer; font-size: 13px; margin: 0 2px;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }

/* Result shell */
.result { margin: 26px 0 36px; }
.loading, .error { text-align: center; color: var(--muted); padding: 40px; }
.error { color: var(--bad); }
.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 20px; box-shadow: var(--shadow);
}
.card h3 {
  margin: 0 0 14px; font-size: 14px; letter-spacing: .3px; text-transform: uppercase;
  color: var(--muted); display: flex; align-items: center; gap: 8px;
}
.card h3 svg { width: 16px; height: 16px; color: var(--accent); }
.card h3 .count { color: var(--muted); font-weight: 500; font-size: 12px; text-transform: none; margin-left: auto; }
.empty { color: var(--muted); font-size: 14px; }

/* Hero result header */
.rpt-hero {
  display: flex; align-items: center; gap: 20px; flex-wrap: wrap;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px 24px; box-shadow: var(--shadow); margin-bottom: 16px;
}
.favicon { width: 44px; height: 44px; border-radius: 10px; border: 1px solid var(--line); background: #fff; flex: 0 0 auto; }
.rpt-id { flex: 1 1 240px; min-width: 0; }
.rpt-id h2 { margin: 0; font-size: 24px; letter-spacing: -.3px; word-break: break-word; }
.reach { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
.cats { margin-top: 10px; }
.rpt-score { display: flex; align-items: center; gap: 14px; }
.gauge {
  --val: 0;
  width: 88px; height: 88px; border-radius: 50%; flex: 0 0 auto;
  background: conic-gradient(var(--accent) calc(var(--val) * 1%), var(--line) 0);
  display: grid; place-items: center; position: relative;
}
.gauge::before { content: ""; position: absolute; inset: 8px; border-radius: 50%; background: var(--card); }
.gauge b { position: relative; font-size: 26px; font-weight: 800; }
.gauge i { position: relative; font-style: normal; font-size: 11px; color: var(--muted); margin-top: -4px; }
.badge { display: inline-block; padding: 4px 11px; border-radius: 999px; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .5px; }
.badge.high { background: var(--good-bg); color: var(--good); }
.badge.medium { background: var(--warn-bg); color: var(--warn); }
.badge.low, .badge.none { background: var(--bad-bg); color: var(--bad); }

/* Quick-stat strip */
.stat-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-bottom: 16px; }
.stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow); }
.stat .stat-h { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .4px; }
.stat .stat-h svg { width: 15px; height: 15px; color: var(--accent); }
.stat .stat-v { font-size: 24px; font-weight: 800; margin-top: 8px; letter-spacing: -.5px; }
.stat .stat-v.muted { color: var(--muted); font-weight: 600; font-size: 18px; }

/* Panel grid — masonry columns so variable-height cards pack tightly (no row gaps) */
.panels { column-count: 2; column-gap: 16px; }
.panels .card { break-inside: avoid; -webkit-column-break-inside: avoid; margin: 0 0 16px; }
#subs-slot, #hist-slot, #sim-slot, #audit-slot, #pages-slot, #lh-slot, #carbon-slot, #safe-slot { display: contents; }
.lh-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(90px, 1fr)); gap: 10px; }
.appcard { display: flex; align-items: center; gap: 14px; }
.appicon { width: 56px; height: 56px; border-radius: 13px; flex: 0 0 auto; }
.appinfo { min-width: 0; }
.appname { font-weight: 700; font-size: 16px; color: var(--ink); text-decoration: none; }
.appname:hover { color: var(--accent); }
.apprating { color: var(--warn); font-weight: 700; font-size: 15px; margin-top: 2px; }
.appmeta { color: var(--muted); font-size: 13px; margin-top: 2px; }
.audit { display: flex; flex-direction: column; }
.arow { display: flex; align-items: center; gap: 10px; padding: 8px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.arow:last-child { border-bottom: 0; }
.adot { width: 9px; height: 9px; border-radius: 50%; flex: 0 0 auto; }
.adot.pass { background: var(--good); }
.adot.warn { background: var(--warn); }
.adot.fail { background: var(--bad); }
.al { color: var(--ink-2); }
.adetail { margin-left: auto; color: var(--muted); font-size: 13px; }
a.tag { text-decoration: none; transition: background .12s, color .12s; }
a.tag:hover { background: var(--accent); color: #fff; }
.chart { width: 100%; height: 150px; }
.chart-x { display: flex; justify-content: space-between; color: var(--muted); font-size: 11px; margin-top: 6px; }
@media (max-width: 720px) { .panels { column-count: 1; } }

/* Core Web Vitals */
.cwv-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.cwv-tile { border-radius: 12px; padding: 14px; text-align: center; border: 1px solid var(--line); }
.cwv-tile.good { background: var(--good-bg); border-color: transparent; }
.cwv-tile.ni   { background: var(--warn-bg); border-color: transparent; }
.cwv-tile.poor { background: var(--bad-bg); border-color: transparent; }
.cwv-val { font-size: 22px; font-weight: 800; letter-spacing: -.5px; white-space: nowrap; }
.cwv-tile.good .cwv-val { color: var(--good); }
.cwv-tile.ni   .cwv-val { color: var(--warn); }
.cwv-tile.poor .cwv-val { color: var(--bad); }
.cwv-name { font-size: 12px; font-weight: 700; margin-top: 4px; }
.cwv-rate { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .4px; }
.card-note { color: var(--muted); font-size: 13px; margin: 12px 0 0; }
.cwv-verdict { margin-left: auto; padding: 3px 10px; border-radius: 999px; font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .4px; }
.cwv-verdict.good { background: var(--good-bg); color: var(--good); }
.cwv-verdict.ni { background: var(--warn-bg); color: var(--warn); }
.cwv-verdict.poor { background: var(--bad-bg); color: var(--bad); }
.ov-title { font-weight: 700; font-size: 16px; }
.ov-desc { color: var(--muted); font-size: 14px; margin: 6px 0 0; }

/* Technology */
.techgroup { margin-bottom: 12px; }
.techgroup:last-child { margin-bottom: 0; }
.techgroup .label { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .5px; margin-bottom: 6px; }
.tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { background: var(--accent-soft); color: var(--accent); padding: 4px 11px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.cats .tag { background: var(--accent-soft); color: var(--accent); }
.tag.green { background: var(--good-bg); color: var(--good); }
.tags.subs .tag { background: #f1f5f9; color: var(--ink-2); font-weight: 500; }

/* Definition rows (infra / domain) */
.irow { display: flex; justify-content: space-between; gap: 16px; padding: 9px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
.irow:last-child { border-bottom: 0; }
.ik { color: var(--muted); flex: 0 0 auto; }
.iv { text-align: right; word-break: break-word; color: var(--ink-2); font-weight: 500; }
.iv .tags.inline { display: inline-flex; justify-content: flex-end; }
.ok { color: var(--good); font-weight: 700; }
.no { color: var(--bad); font-weight: 700; }

/* Discovery section */
.explore { padding: 22px 0 8px; text-align: center; }
.explore h2 { font-size: 20px; margin: 0 0 14px; }
.explore .tags { justify-content: center; max-width: 800px; margin: 0 auto; }

/* Copy-link button */
.copylink { margin-top: 12px; background: none; border: 1px solid var(--line); color: var(--muted);
  padding: 6px 12px; border-radius: 999px; font-size: 13px; font-weight: 600; cursor: pointer; }
.copylink:hover { border-color: var(--accent); color: var(--accent); }

/* Compare two domains */
#cmp { display: flex; gap: 10px; max-width: 660px; margin: 0 auto; flex-wrap: wrap; }
#cmp input { flex: 1 1 220px; padding: 14px 16px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--card); color: var(--ink); font-size: 16px; box-shadow: var(--shadow); }
#cmp input:focus { outline: 2px solid var(--accent); border-color: transparent; }
#cmp button { padding: 14px 24px; border: 0; border-radius: var(--radius); cursor: pointer; background: var(--accent); color: #fff; font-weight: 700; font-size: 16px; }
.cmp-head { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 14px; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); margin-bottom: 16px; }
.cmp-side { display: flex; flex-direction: column; align-items: center; gap: 10px; text-align: center; }
.cmp-id { display: flex; flex-direction: column; align-items: center; gap: 8px; }
.cmp-id a { font-weight: 700; font-size: 18px; color: var(--ink); text-decoration: none; word-break: break-word; }
.cmp-id a:hover { color: var(--accent); }
.cmp-vs { font-weight: 800; color: var(--muted); font-size: 13px; letter-spacing: .5px; }
.cmp-table { display: flex; flex-direction: column; }
.cmp-row { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: 12px; padding: 11px 0; border-bottom: 1px solid var(--line); }
.cmp-row:last-child { border-bottom: 0; }
.cmp-label { text-align: center; color: var(--muted); font-size: 13px; }
.cmp-val { font-weight: 700; font-size: 18px; color: var(--ink-2); }
.cmp-val.a { text-align: right; }
.cmp-val.b { text-align: left; }
.cmp-val.win { color: var(--good); }

/* How it works + footer */
.how { padding: 18px 0 50px; text-align: center; }
.how h2 { font-size: 20px; }
.how p { color: var(--muted); max-width: 720px; margin: 12px auto 0; }
.site-footer { border-top: 1px solid var(--line); padding: 24px 0; color: var(--muted); font-size: 13px; text-align: center; }

@media (max-width: 620px) {
  .stat-strip { grid-template-columns: repeat(2, 1fr); }
  .rpt-score { width: 100%; justify-content: space-between; }
}
@media (max-width: 420px) {
  #lookup { flex-direction: column; }
  #lookup button[type=submit] { width: 100%; }
}
@media (max-width: 360px) {
  .cwv-row { grid-template-columns: 1fr; }
}