:root {
  color-scheme: dark;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #090b10;
  color: #f5f7fb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(0, 203, 236, 0.12), transparent 35%),
    linear-gradient(315deg, rgba(88, 126, 236, 0.16), transparent 40%),
    #090b10;
}

.shell {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0;
}

.hero {
  margin-bottom: 28px;
}

.eyebrow {
  margin: 0 0 10px;
  color: #67e8f9;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

h1 {
  margin: 0;
  max-width: 720px;
  font-size: clamp(34px, 6vw, 64px);
  line-height: 1.02;
}

.scope {
  max-width: 760px;
  color: #b6becc;
  font-size: 18px;
  line-height: 1.55;
}

.panel,
.result {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  background: rgba(17, 20, 28, 0.86);
  padding: 22px;
}

.panel {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 8px;
  color: #dce3ee;
  font-weight: 650;
}

input {
  width: 100%;
  border: 1px dashed rgba(255, 255, 255, 0.22);
  border-radius: 8px;
  background: #0d1119;
  color: #f5f7fb;
  padding: 14px;
}

button {
  min-height: 48px;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, #00cbec, #587eec);
  color: white;
  cursor: pointer;
  font-size: 16px;
  font-weight: 800;
}

.result {
  margin-top: 18px;
}

.hidden {
  display: none;
}

.status-valid {
  border-color: rgba(34, 197, 94, 0.5);
}

.status-invalid {
  border-color: rgba(239, 68, 68, 0.5);
}

.status-warning {
  border-color: rgba(245, 158, 11, 0.5);
}

.badge {
  display: inline-flex;
  margin: 0 8px 8px 0;
  border-radius: 999px;
  padding: 7px 11px;
  background: rgba(255, 255, 255, 0.09);
  font-size: 13px;
  font-weight: 800;
}

pre {
  overflow-x: auto;
  border-radius: 8px;
  background: #070910;
  padding: 16px;
  color: #d7deea;
}

label em {
  color: #8b93a4;
  font-weight: 500;
  font-style: normal;
}

.source-banner {
  margin-bottom: 18px;
  border: 1px solid rgba(103, 232, 249, 0.35);
  border-radius: 8px;
  background: rgba(0, 203, 236, 0.06);
  padding: 18px 20px;
}

.source-title {
  margin: 0 0 10px;
  color: #67e8f9;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.source-list {
  display: grid;
  grid-template-columns: minmax(120px, max-content) 1fr;
  gap: 4px 16px;
  margin: 0;
}

.source-list dt {
  color: #9aa3b4;
  font-weight: 700;
}

.source-list dd {
  margin: 0;
  overflow-wrap: anywhere;
  color: #e4e9f2;
}

.source-note {
  margin: 12px 0 0;
  color: #b6becc;
  font-size: 14px;
  line-height: 1.5;
}

.badges {
  margin-top: 4px;
}

.badge-danger {
  background: rgba(239, 68, 68, 0.22);
  color: #fecaca;
}

.revoked-note {
  margin: 6px 0 0;
  border-left: 3px solid rgba(239, 68, 68, 0.7);
  padding: 8px 12px;
  color: #fecaca;
  background: rgba(239, 68, 68, 0.08);
  font-size: 14px;
  line-height: 1.5;
}