:root {
  --bg: #101820;
  --ink: #f4f4ea;
  --muted: #aab5c0;
  --card: #19242f;
  --line: #445260;
  --accent: #d7ff3f;
  --accent-ink: #101820;
  --shadow: 0 12px 36px rgb(0 0 0 / 12%);
  --ok: #b4edc8;
  --warn: #ffdb92;
  --bad: #ffb9ae;
  color-scheme: dark;
}
body { background: var(--bg); }
.skip-link { position: absolute; left: 1rem; top: -5rem; z-index: 20; background: var(--accent); color: var(--accent-ink); padding: .6rem 1rem; }
.skip-link:focus { top: 1rem; }
.top { background: #101820; padding: 1.2rem 2rem; }
.brand { display: flex; align-items: center; gap: .7rem; font-size: 1.85rem; font-weight: 800; letter-spacing: -.065em; }
.brand img { flex-shrink: 0; }
.brand-sub { margin-left: 3.2rem; font-size: .72rem; }
.nav { gap: 1.2rem; }
.nav a { color: var(--muted); padding: .5rem .1rem; }
.nav a[aria-current="page"], .nav a:hover { color: var(--accent); }
.panel { border-radius: 8px; padding: 1.6rem; }
h1 { font-weight: 800; letter-spacing: -.045em; font-size: 2rem; }
input, select, button, .case, .run, .record { background: #101820; }
input, select { padding: .75rem; border-radius: 5px; }
input[type="radio"] { accent-color: var(--accent); }
button { border-radius: 5px; padding: .6rem 1rem; font-weight: 650; }
button.primary { font-weight: 750; }
button.primary:hover { background: #e3ff7a; }
.case { border-radius: 6px; padding: 1rem; }
.case.danger { background: #35232a; }
.case:has(input:checked) { background: #253128; }
.pill { background: #2b3947; }
.pill.bad, .status-bounced, .status-smtp_error, .status-expired, .banner.bad { background: #432831; color: var(--bad); }
.status-sent { background: #223d33; color: var(--ok); }
.status-deferred, .banner.warn { background: #443722; color: var(--warn); }
.status-queued, .status-submitting { background: #2b3947; }
.login-intro { text-align: center; margin: 3.5rem auto 2rem; }
.eyebrow { color: var(--accent); font: 600 .72rem/1.5 ui-monospace, monospace; letter-spacing: .18em; }
.login-intro h1 { font-size: clamp(2.7rem, 7vw, 4.6rem); line-height: 1.02; margin: 1rem 0; }
.login-intro h1 span { color: var(--accent); }
.login-intro > p:not(.eyebrow) { color: var(--muted); }
.protocols { display: flex; justify-content: center; gap: .5rem; }
.protocols span { border: 1px solid var(--line); border-radius: 4px; padding: .25rem .6rem; color: var(--muted); font: .72rem ui-monospace, monospace; }
.narrow { margin: 2rem auto 3rem; }
.login-heading { font-size: 1.3rem; }
footer { border-top: 1px solid var(--line); padding-top: 1rem; font-size: .78rem; }
footer strong { color: var(--ink); }
@media (max-width: 640px) {
  .top { padding: 1rem; }
  .brand { font-size: 1.6rem; }
  .nav { width: 100%; gap: 1rem; }
  .login-intro { margin-top: 2rem; }
  .panel { padding: 1.1rem; }
}