:root {
  --ink: #14172a; --muted: #5c657f; --line: #e3e6f0; --accent: #2f4fe0;
  --paper: #fffdf8; --bg: #eceff7;
  --gold: #b8912f; --gold-lt: #e6c877; --gold-dk: #8a6a1c;
}
@media (prefers-color-scheme: dark) {
  :root { --ink: #f2f4fb; --muted: #a3adc8; --line: #2c3252; --paper: #171b33; --bg: #090b16; }
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.55 ui-serif, "Iowan Old Style", Palatino, Georgia, serif;
  -webkit-font-smoothing: antialiased;
}
.wrap { max-width: 1000px; margin: 0 auto; padding: 34px 20px 70px; }

.cert {
  position: relative; background: var(--paper); border-radius: 6px; padding: 56px 60px 44px;
  box-shadow: 0 30px 70px rgba(12, 16, 34, .18);
  background-image:
    radial-gradient(circle at 18% 12%, rgba(184,145,47,.07), transparent 42%),
    radial-gradient(circle at 84% 88%, rgba(47,79,224,.06), transparent 45%);
  overflow: hidden;
}
.cert::before {
  content: ""; position: absolute; inset: 16px; pointer-events: none; border-radius: 3px;
  border: 2.5px solid transparent;
  background: linear-gradient(135deg, var(--gold-dk), var(--gold-lt) 22%, var(--gold) 40%, var(--gold-lt) 62%, var(--gold-dk)) border-box;
  -webkit-mask: linear-gradient(#000 0 0) padding-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
}
.cert::after {
  content: ""; position: absolute; inset: 25px; pointer-events: none; border-radius: 2px;
  border: 1px solid var(--gold); opacity: .38;
}
.cert > * { position: relative; z-index: 1; }

.corner { position: absolute; width: 62px; height: 62px; z-index: 1; opacity: .75; }
.corner.tl { top: 30px; left: 30px; }
.corner.tr { top: 30px; right: 30px; transform: scaleX(-1); }
.corner.bl { bottom: 30px; left: 30px; transform: scaleY(-1); }
.corner.br { bottom: 30px; right: 30px; transform: scale(-1); }

header { text-align: center; }
.brand { border-radius: 18px; box-shadow: 0 8px 22px rgba(12,16,34,.16); }
.kicker {
  margin: 16px 0 2px; font-family: system-ui, sans-serif; font-size: 11.5px;
  letter-spacing: .34em; text-transform: uppercase; color: var(--gold-dk); font-weight: 700;
}
@media (prefers-color-scheme: dark) { .kicker { color: var(--gold-lt); } }
.cert h1 { margin: 6px 0 2px; font-size: clamp(25px, 3.6vw, 37px); font-weight: 600; letter-spacing: -.01em; }
.rule { width: 128px; height: 1px; margin: 20px auto; background: linear-gradient(90deg, transparent, var(--gold), transparent); }
.awarded { margin: 0; font-family: system-ui, sans-serif; font-size: 12px; letter-spacing: .22em; text-transform: uppercase; color: var(--muted); }
.name {
  margin: 8px 0 0; font-size: clamp(30px, 5.6vw, 50px); font-weight: 600; letter-spacing: -.015em;
  background: linear-gradient(160deg, var(--gold-dk), var(--gold-lt) 45%, var(--gold-dk));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.statement { margin: 18px auto 0; max-width: 62ch; text-align: center; color: var(--muted); font-size: 15px; }

.level { display: flex; gap: 30px; align-items: center; flex-wrap: wrap; justify-content: center; margin: 32px 0 30px; }
.seal {
  display: grid; place-items: center; width: 168px; height: 168px; border-radius: 50%;
  background: conic-gradient(from 210deg, var(--gold-dk), var(--gold-lt) 25%, var(--gold) 48%, var(--gold-lt) 72%, var(--gold-dk));
  box-shadow: 0 14px 34px rgba(138,106,28,.34), inset 0 0 0 7px rgba(255,255,255,.34);
  color: #3a2c07; text-align: center; padding: 12px;
}
.seal .lv { font-size: 15px; font-weight: 700; font-family: system-ui, sans-serif; letter-spacing: .02em; line-height: 1.2; }
.seal .cefr { font-size: 40px; font-weight: 800; font-family: system-ui, sans-serif; line-height: 1.05; margin-top: 2px; }
.seal small { font-family: system-ui, sans-serif; font-size: 10px; letter-spacing: .2em; text-transform: uppercase; opacity: .78; }
.skills { display: grid; grid-template-columns: repeat(auto-fit, minmax(146px, 1fr)); gap: 9px; flex: 1; min-width: 280px; }
.skill {
  display: flex; justify-content: space-between; gap: 10px; padding: 10px 14px; border-radius: 8px;
  border: 1px solid var(--line); background: rgba(184,145,47,.05);
  font-family: system-ui, sans-serif; font-size: 13.5px;
}
.skill b { color: var(--gold-dk); }
@media (prefers-color-scheme: dark) { .skill b { color: var(--gold-lt); } }

footer { border-top: 1px solid var(--line); padding-top: 22px; margin-top: 8px; font-family: system-ui, sans-serif; }
.meta { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 14px; }
.meta p { margin: 0; display: grid; gap: 3px; }
.meta span { font-size: 10.5px; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); }
.meta b { font-variant-numeric: tabular-nums; font-size: 15px; }
.status.ok { color: #1d7a4c; }
.scope, .verify-note { color: var(--muted); font-size: 12.5px; margin-top: 16px; }
.verify-note b { color: var(--ink); }
.revoked .status { color: #c0392b; }
.revoked::after {
  content: "REVOKED"; position: absolute; inset: auto; top: 46%; left: 50%;
  transform: translate(-50%,-50%) rotate(-17deg); border: none;
  font-family: system-ui, sans-serif; font-size: clamp(54px, 12vw, 122px); font-weight: 800;
  color: #c0392b; opacity: .14; letter-spacing: .06em;
}

.actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 26px 0 12px; font-family: system-ui, sans-serif; }
button, .btn {
  appearance: none; border: 1px solid var(--line); background: var(--paper); color: var(--ink);
  padding: 12px 19px; border-radius: 11px; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none;
}
.actions button { background: var(--accent); border-color: var(--accent); color: #fff; }
.share { color: var(--muted); font-size: 14px; font-family: system-ui, sans-serif; }
.share a { color: var(--accent); margin-right: 13px; }
.form, .notfound { font-family: system-ui, sans-serif; }
.form form { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
.form input {
  flex: 1; min-width: 250px; padding: 13px 15px; border-radius: 11px; border: 1px solid var(--line);
  background: transparent; color: var(--ink); font: inherit; letter-spacing: .06em; text-transform: uppercase;
}
.form button { background: var(--accent); border-color: var(--accent); color: #fff; }
.error { color: #c0392b; }

@page { size: A4 landscape; margin: 0; }
@media print {
  :root { --ink: #14172a; --muted: #545d75; --line: #d8dae6; --paper: #fff; --bg: #fff; }
  body { background: #fff; }
  .wrap { max-width: none; padding: 0; }
  .no-print { display: none !important; }
  .cert { box-shadow: none; border-radius: 0; padding: 34px 44px 26px; height: 100vh; break-inside: avoid; }
  .cert::before { inset: 10mm; }
  .cert::after { inset: 12mm; }
  .corner.tl, .corner.tr { top: 14mm; } .corner.bl, .corner.br { bottom: 14mm; }
  .corner.tl, .corner.bl { left: 14mm; } .corner.tr, .corner.br { right: 14mm; }
  .name { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .seal { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  a { color: inherit; text-decoration: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 760px) {
  .wrap { padding: 20px 14px 48px; }
  .cert { padding: 34px 22px 30px; border-radius: 4px; }
  .cert::before { inset: 10px; }
  .cert::after { inset: 17px; }
  .corner { width: 40px; height: 40px; }
  .corner.tl, .corner.tr { top: 20px; }
  .corner.bl, .corner.br { bottom: 20px; }
  .corner.tl, .corner.bl { left: 20px; }
  .corner.tr, .corner.br { right: 20px; }
  .level { gap: 22px; margin: 26px 0 24px; }
  .seal { width: 140px; height: 140px; }
  .seal .cefr { font-size: 34px; }
  .skills { min-width: 0; grid-template-columns: repeat(auto-fit, minmax(128px, 1fr)); }
  .meta { gap: 12px; }
  .actions { gap: 8px; }
  .actions button, .actions .btn { flex: 1 1 100%; text-align: center; }
  button, .btn { min-height: 44px; }
  .form input { min-width: 0; }
}
@media (max-width: 380px) {
  .cert { padding: 28px 16px 24px; }
  .name { font-size: 27px; }
  .skill { padding: 9px 11px; font-size: 13px; }
}

/* ---------- legal pages and shared footer ---------- */
.cert.legal { font-family: system-ui, -apple-system, sans-serif; padding: 40px 44px; }
.cert.legal::before, .cert.legal::after { display: none; }
.cert.legal h1 { text-align: left; font-size: clamp(26px, 4vw, 34px); margin-bottom: 6px; }
.cert.legal h2 { font-size: 19px; margin: 30px 0 8px; }
.cert.legal p, .cert.legal li { font-size: 15.5px; line-height: 1.65; }
.cert.legal .updated { color: var(--muted); font-size: 13.5px; }
.cert.legal a { color: #2f4fe0; }
@media (prefers-color-scheme: dark) { .cert.legal a { color: #8fa9ff; } }
.cert.legal table { width: 100%; border-collapse: collapse; margin: 14px 0; font-size: 14px; display: block; overflow-x: auto; }
.cert.legal th, .cert.legal td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
.cert.legal th { background: rgba(184,145,47,.08); font-weight: 600; }
footer.site { max-width: 1000px; margin: 0 auto; padding: 34px 20px 60px; font-family: system-ui, -apple-system, sans-serif; font-size: 14px; color: var(--muted); }
footer.site .shell { display: grid; gap: 20px; }
footer.site .logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 600; color: var(--ink); text-decoration: none; }
footer.site .logo img { border-radius: 8px; }
footer.site .company { margin: 10px 0 0; line-height: 1.7; font-size: 13.5px; }
footer.site .foot-links { display: flex; flex-wrap: wrap; gap: 6px 20px; }
footer.site a { color: var(--muted); }
footer.site .copyright { font-size: 12.5px; line-height: 1.6; border-top: 1px solid var(--line); padding-top: 18px; margin: 0; }
@media (max-width: 760px) { .cert.legal { padding: 30px 20px; } footer.site { padding: 26px 14px 48px; } }
@media print { footer.site { display: none; } }