:root {
  color-scheme: light;
  --bg: #f6f7fb;
  --card: #ffffff;
  --text: #182033;
  --muted: #667085;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --border: #e4e7ec;
  --danger: #b42318;
  --ok: #027a48;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top left, #dbeafe, transparent 30%), var(--bg);
  color: var(--text);
}
.shell { width: min(920px, calc(100% - 32px)); margin: 0 auto; padding: 56px 0; }
.shell.wide { width: min(1180px, calc(100% - 32px)); }
.hero { margin-bottom: 24px; }
.badge { display: inline-block; padding: 6px 10px; border-radius: 999px; background: #eff6ff; color: var(--primary); font-weight: 700; font-size: 13px; }
h1 { margin: 18px 0 12px; font-size: clamp(32px, 6vw, 56px); line-height: 1.05; }
p { color: var(--muted); line-height: 1.7; }
.card { background: rgba(255,255,255,.9); border: 1px solid var(--border); border-radius: 24px; padding: 24px; box-shadow: 0 20px 60px rgba(16,24,40,.08); margin-top: 18px; }
label { display: block; margin-bottom: 10px; font-weight: 700; }
.input-row { display: flex; gap: 12px; }
input { flex: 1; border: 1px solid var(--border); border-radius: 14px; padding: 14px 16px; font-size: 16px; outline: none; }
input:focus { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(37,99,235,.12); }
button { border: 0; border-radius: 14px; background: var(--primary); color: #fff; font-weight: 800; padding: 0 22px; cursor: pointer; }
button:hover { background: var(--primary-dark); }
button:disabled { opacity: .6; cursor: not-allowed; }
.danger-btn { background: #dc2626; }
.danger-btn:hover { background: #b91c1c; }
.hint { margin-bottom: 0; font-size: 14px; }
.hidden { display: none; }
.final-box { display: grid; gap: 8px; padding: 16px; border-radius: 16px; background: #f8fafc; border: 1px solid var(--border); overflow-wrap: anywhere; }
.final-box span { color: var(--muted); font-size: 13px; font-weight: 700; }
.final-box a { color: var(--ok); font-weight: 700; }
.final-box button { justify-self: start; padding: 10px 16px; margin-top: 4px; }
.chain { padding-left: 24px; }
.chain li { margin: 12px 0; padding: 12px; border: 1px solid var(--border); border-radius: 14px; background: #fff; overflow-wrap: anywhere; }
.status { display: inline-block; margin-bottom: 6px; font-weight: 800; color: var(--primary); }
.error { color: var(--danger); font-weight: 700; }
code { padding: 2px 6px; border-radius: 8px; background: #f2f4f7; }
.count { color: var(--muted); font-size: 16px; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
th { color: var(--muted); font-size: 13px; }
.url-cell { max-width: 340px; overflow-wrap: anywhere; }
.pill { display: inline-block; padding: 4px 8px; border-radius: 999px; font-weight: 800; font-size: 12px; }
.pill.ok { background: #ecfdf3; color: var(--ok); }
.pill.bad { background: #fef3f2; color: var(--danger); }
@media (max-width: 680px) { .input-row { flex-direction: column; } button { padding: 14px 18px; } }