:root {
  --bg: #0e1117;
  --panel: #161b26;
  --text: #e6e9f0;
  --muted: #9aa3b5;
  --accent: #4f8cff;
  --accent-dark: #2f6ae0;
  --ok: #2ecc71;
  --err: #ff6b6b;
  --border: #262d3d;
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code, pre { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; font-size: 0.92em; }
pre {
  background: var(--panel); border: 1px solid var(--border); border-radius: 8px;
  padding: 14px 16px; overflow-x: auto; color: #c9d4ea;
}
main { max-width: 860px; margin: 0 auto; padding: 32px 20px 64px; }
footer { border-top: 1px solid var(--border); padding: 20px; text-align: center; color: var(--muted); font-size: 14px; }
.muted { color: var(--muted); }

.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; border-bottom: 1px solid var(--border);
  background: rgba(14, 17, 23, 0.9); position: sticky; top: 0; backdrop-filter: blur(6px);
}
.brand { font-weight: 700; font-size: 18px; color: var(--text); }
.brand span { color: var(--accent); font-weight: 400; }
.nav nav a { color: var(--muted); margin-left: 20px; }
.nav nav a.active, .nav nav a:hover { color: var(--text); text-decoration: none; }

.hero { text-align: center; padding: 56px 0 40px; }
.hero h1 { font-size: 40px; margin: 0 0 12px; }
.hero p { color: var(--muted); max-width: 560px; margin: 0 auto 20px; }
.cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }

.btn {
  display: inline-block; padding: 10px 20px; border-radius: 8px; border: 1px solid var(--border);
  background: var(--panel); color: var(--text) !important; font-weight: 600; cursor: pointer;
}
.btn:hover { border-color: var(--accent); text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff !important; }
.btn.small { padding: 4px 10px; font-size: 13px; }
.btn.danger { color: var(--err) !important; border-color: var(--err); }
.linklike { background: none; border: none; color: var(--accent); cursor: pointer; padding: 0; font: inherit; }
.linklike:hover { text-decoration: underline; }

section { margin: 36px 0; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.grid > div { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 18px; }
.grid h3 { margin: 0 0 8px; font-size: 17px; }
.grid p { margin: 0; color: var(--muted); font-size: 14.5px; }
.legal-links h3 { margin-bottom: 4px; }

.checkform, .authform {
  display: flex; flex-direction: column; gap: 10px; max-width: 480px;
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 20px;
}
.checkform input[type="url"], .checkform select,
.authform input { padding: 10px 12px; border-radius: 8px; border: 1px solid var(--border); background: var(--bg); color: var(--text); font: inherit; width: 100%; }
.checkform .btn, .authform .btn { align-self: flex-start; }
label { font-size: 14px; color: var(--muted); }

table { border-collapse: collapse; width: 100%; margin: 12px 0 24px; font-size: 15px; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--border); vertical-align: top; }
table.result th { width: 180px; color: var(--muted); font-weight: 500; }
table.history .url { max-width: 380px; overflow-wrap: anywhere; }
.sc { font-weight: 700; }
.sc.ok { color: var(--ok); }
table.resp code { color: #c9d4ea; }

.alert { border-radius: 8px; padding: 12px 16px; margin: 16px 0; border: 1px solid var(--border); }
.alert.err { border-color: var(--err); color: var(--err); }
.alert.ok { border-color: var(--ok); }
.keyreveal { display: inline-block; margin-top: 8px; padding: 8px 12px; background: var(--bg); border-radius: 6px; user-select: all; overflow-wrap: anywhere; }
.inline { display: inline; }

.docs h1 { margin-top: 0; }
.endpoint { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 16px 18px; margin: 14px 0; }
.ephead { display: flex; align-items: center; gap: 12px; margin-bottom: 8px; }
.ephead code { font-size: 15px; }
.m { font-size: 12px; font-weight: 700; padding: 3px 8px; border-radius: 5px; letter-spacing: 0.5px; }
.m.get { background: #163a5f; color: #6db3ff; }
.m.post { background: #1d4d2b; color: #52d67f; }

h1 { font-size: 30px; } h2 { font-size: 22px; margin-top: 36px; } h3 { font-size: 17px; }
ol li, ul li { margin: 6px 0; }