:root {
  color-scheme: dark;
  --bg: #090909;
  --surface: #101010;
  --panel: #151515;
  --ink: #e9e9e5;
  --muted: #92928c;
  --faint: #686862;
  --line: #292927;
  --line-strong: #444440;
  --canary: #f6d743;
  --canary-ink: #1b1600;
  --canary-dim: #302a0b;
  --safe: #86d7a2;
  --safe-bg: #14281b;
  --warn: #edbd72;
  --warn-bg: #302416;
  --danger: #f08f8f;
  --danger-bg: #301919;
  --radius: 3px;
  --radius-sm: 2px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --sans: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}
body {
  min-width: 320px;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 14px/1.55 var(--sans);
}
button,
input,
select,
textarea {
  font: inherit;
}
button,
select {
  cursor: pointer;
}
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 1px solid var(--canary);
  outline-offset: 3px;
}

/* Shared frame */
.app-shell,
main {
  max-width: 54rem;
  margin: 0 auto;
}
.app-shell {
  padding: 1.25rem 1.25rem 3rem;
}
.site-header,
.nav-row {
  display: flex;
  align-items: center;
  min-height: 2.5rem;
}
.site-header {
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}
.wordmark,
.nav-row h1 a {
  color: var(--canary);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
}
.wordmark span {
  color: var(--canary);
  animation: blink 1.2s steps(2, start) infinite;
}
nav {
  display: flex;
  gap: 0.15rem;
}
nav a,
nav a:visited {
  padding: 0.25rem 0.45rem;
  color: var(--muted);
  font-size: 0.76rem;
  text-decoration: none;
}
nav a:hover,
nav a.active,
nav a.active:visited {
  color: var(--ink);
  background: var(--panel);
}
.status-pill {
  color: var(--safe);
  font-size: 0.68rem;
}
.status-pill::before {
  content: "[";
  color: var(--muted);
}
.status-pill::after {
  content: "]";
  color: var(--muted);
}

/* Checker */
.analyzer {
  margin-top: clamp(4rem, 12vw, 7rem);
}
.analyzer-heading {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  margin-bottom: 1.5rem;
}
.section-kicker {
  margin: 0 0 0.4rem;
  color: var(--muted);
  font-size: 0.68rem;
}
.analyzer-heading h1 {
  margin: 0;
  font-size: 1.05rem;
  font-weight: 500;
  letter-spacing: -0.02em;
}
.analyzer-note {
  margin: 0;
  color: var(--faint);
  font-size: 0.68rem;
  text-align: right;
}
.input-label {
  display: block;
  margin-bottom: 0.45rem;
  color: var(--muted);
  font-size: 0.72rem;
}
.form-row {
  display: flex;
  gap: 0.5rem;
}
.domain-field {
  position: relative;
  flex: 1;
  min-width: 0;
}
.input-prefix {
  position: absolute;
  top: 50%;
  left: 0.8rem;
  z-index: 1;
  color: var(--canary);
  pointer-events: none;
  transform: translateY(-50%);
}
input {
  min-width: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--ink);
}
input:hover {
  border-color: var(--faint);
}
input:focus {
  border-color: var(--canary);
  outline: 0;
}
input::placeholder {
  color: var(--faint);
  opacity: 1;
}
.domain-field input {
  width: 100%;
  padding: 0.8rem 0.8rem 0.8rem 2rem;
  font-size: 0.9rem;
}
button[type="submit"] {
  min-width: 5.7rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--canary);
  border-radius: var(--radius-sm);
  background: var(--canary);
  color: var(--canary-ink);
  font-size: 0.78rem;
  font-weight: 700;
}
button[type="submit"]:hover {
  background: #ffe76b;
}
button[type="submit"]:disabled {
  opacity: 0.55;
  cursor: progress;
}
.optional-field {
  display: grid;
  grid-template-columns: 12.5rem minmax(0, 1fr);
  gap: 0.75rem;
  align-items: center;
  margin-top: 0.6rem;
}
.optional-field label {
  color: var(--muted);
  font-size: 0.68rem;
}
.optional-field label span {
  color: var(--faint);
}
.optional-field input {
  width: 100%;
  padding: 0.48rem 0.65rem;
  color: var(--muted);
  font-size: 0.72rem;
}
.analyzer-footer {
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  margin-top: 1rem;
  padding-top: 0.8rem;
  border-top: 1px solid var(--line);
}
.hint {
  max-width: 32rem;
  margin: 0;
  color: var(--muted);
  font-size: 0.68rem;
}
.examples {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
  gap: 0.35rem;
}
.examples-label {
  color: var(--faint);
  font-size: 0.67rem;
}
.ex {
  padding: 0.15rem 0.35rem;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 0.67rem;
  text-decoration: underline;
  text-decoration-color: var(--line-strong);
  text-underline-offset: 3px;
}
.ex:hover {
  color: var(--canary);
}

/* Results */
#result {
  margin-top: 1.4rem;
}
.card {
  padding: 1rem;
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--line-strong);
  background: var(--surface);
}
.card.safe {
  border-left-color: var(--safe);
}
.card.suspicious {
  border-left-color: var(--warn);
}
.card.dangerous {
  border-left-color: var(--danger);
}
.card.error {
  border-left-color: var(--muted);
}
.verdict {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem;
}
.badge {
  padding: 0.13rem 0.32rem;
  font-size: 0.63rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.safe .badge {
  color: var(--safe);
  background: var(--safe-bg);
}
.suspicious .badge {
  color: var(--warn);
  background: var(--warn-bg);
}
.dangerous .badge {
  color: var(--danger);
  background: var(--danger-bg);
}
.score {
  font-variant-numeric: tabular-nums;
  font-size: 0.77rem;
}
.headline {
  color: var(--muted);
  font-size: 0.76rem;
}
.domain {
  margin: 0.7rem 0 0.1rem;
  font-size: 0.9rem;
  overflow-wrap: anywhere;
}
.punycode,
.meta {
  margin: 0.1rem 0 0;
  color: var(--muted);
  font-size: 0.7rem;
  overflow-wrap: anywhere;
}
.signals {
  margin: 0.8rem 0 0;
  padding: 0;
  list-style: none;
}
.signals li {
  display: flex;
  gap: 0.55rem;
  padding: 0.35rem 0;
  border-top: 1px solid var(--line);
  font-size: 0.76rem;
}
.mark {
  width: 0.85rem;
  flex: none;
  font-weight: 700;
  text-align: center;
}
.lvl-danger .mark {
  color: var(--danger);
}
.lvl-warn .mark {
  color: var(--warn);
}
.lvl-good .mark {
  color: var(--safe);
}
.lvl-info .mark {
  color: var(--muted);
}

/* How it works */
.explainer {
  display: grid;
  grid-template-columns: minmax(0, 1.8fr) minmax(12rem, 0.8fr);
  gap: clamp(2rem, 7vw, 6rem);
  margin-top: 4rem;
  padding: 1.5rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.explainer-copy {
  max-width: 39rem;
}
.explainer h2 {
  max-width: 31rem;
  margin: 0;
  font-size: clamp(1.2rem, 2.2vw, 1.65rem);
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.04em;
}
.explainer-lede {
  max-width: 35rem;
  margin: 0.65rem 0 0;
  color: var(--muted);
  font-size: 0.75rem;
}
.method-list {
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}
.method-list h3 {
  margin: 0;
  color: var(--ink);
  font-size: 0.75rem;
  font-weight: 600;
}
.method-list p {
  max-width: 34rem;
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.68rem;
  line-height: 1.55;
}
.benchmark {
  align-self: center;
  padding-left: 1rem;
  border-left: 1px solid var(--canary);
}
.benchmark .section-kicker {
  color: var(--canary);
}
.benchmark strong {
  display: block;
  margin-top: 0.35rem;
  color: var(--canary);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 500;
  line-height: 0.95;
  letter-spacing: -0.08em;
}
.benchmark span {
  display: block;
  margin-top: 0.3rem;
  color: var(--ink);
  font-size: 0.72rem;
}
.benchmark > p:last-child {
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.68rem;
  line-height: 1.55;
}

/* API and footer */
.about {
  margin-top: 4rem;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.about summary {
  display: flex;
  justify-content: space-between;
  padding: 0.65rem 0;
  color: var(--ink);
  cursor: pointer;
  font-size: 0.75rem;
  list-style: none;
}
.about summary::-webkit-details-marker {
  display: none;
}
.about summary::after {
  color: var(--canary);
  content: "+";
}
.about[open] summary::after {
  content: "–";
}
.summary-hint {
  color: var(--muted);
  font-size: 0.67rem;
}
.api-content {
  padding: 0.5rem 0 1rem;
}
.api-content p {
  margin: 0 0 0.6rem;
  color: var(--muted);
  font-size: 0.72rem;
}
.about pre {
  overflow-x: auto;
  margin: 0.55rem 0;
  padding: 0.7rem;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--ink);
  font: 0.7rem/1.55 var(--mono);
}
.about code {
  font-family: inherit;
}
footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 0.85rem;
  color: var(--faint);
  font-size: 0.64rem;
}
footer p {
  margin: 0;
}
p.meta {
  color: var(--faint);
}

/* Registry frame */
body:not(.scorer-page) {
  padding: 1.25rem;
}
main.wide {
  max-width: 72rem;
}
body:not(.scorer-page) header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--line);
}
.nav-row {
  gap: 1rem;
}
.nav-row h1 {
  margin: 0;
  font-size: 1rem;
}
.tagline {
  margin: 0;
  color: var(--muted);
  font-size: 0.68rem;
}
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}
@media (max-width: 640px) {
  .app-shell {
    padding: 1rem 1rem 2.5rem;
  }
  .status-pill {
    display: none;
  }
  .site-header {
    min-height: 2.35rem;
  }
  .analyzer {
    margin-top: 4rem;
  }
  .analyzer-heading {
    display: block;
  }
  .analyzer-note {
    margin-top: 0.4rem;
    text-align: left;
  }
  .form-row {
    flex-wrap: wrap;
  }
  .domain-field,
  .form-row button {
    width: 100%;
    flex-basis: 100%;
  }
  .optional-field {
    grid-template-columns: 1fr;
    gap: 0.3rem;
  }
  .analyzer-footer {
    display: block;
  }
  .examples {
    justify-content: flex-start;
    margin-top: 0.75rem;
  }
  .explainer {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 3rem;
  }
  .benchmark {
    align-self: auto;
  }
  .about {
    margin-top: 3rem;
  }
  footer {
    display: block;
  }
  footer p + p {
    margin-top: 0.35rem;
  }
  body:not(.scorer-page) {
    padding: 1rem;
  }
  body:not(.scorer-page) header {
    display: block;
  }
  .tagline {
    margin-top: 0.65rem;
  }
}