/*
  Tawash. Deep Gulf water, the nacre of a pearl, and the brass of a pearl
  merchant's scales. The one bold element is the loupe: every lookalike is set
  in a typeface that keeps l, 1, I, 0 and O apart, and the characters that
  differ from the original are lit in nacre.
*/
:root {
  --water: #0B2A33;
  --surface: #103640;
  --surface-2: #164451;
  --nacre: #EEF1EC;
  --mist: #9DB7BA;
  --brass: #C8A15A;
  --rose: #E46F8E;
  --green: #5FC3A7;
  --line: rgba(157, 183, 186, 0.22);
  --arabic: "Readex Pro", "Noto Sans Arabic", "Segoe UI", Tahoma, sans-serif;
  --kufi: "Reem Kufi", "Readex Pro", "Noto Kufi Arabic", Tahoma, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --radius: 6px;
  color-scheme: dark;
}

* { box-sizing: border-box; }

html {
  background: var(--water);
  color: var(--nacre);
  font-family: var(--arabic);
  font-size: 100%;
  line-height: 1.7;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

html[lang="en"] { line-height: 1.6; }

.wrap {
  width: min(60rem, 100%);
  margin-inline: auto;
  padding-inline: max(1.25rem, env(safe-area-inset-left, 0px));
}

a { color: var(--brass); text-underline-offset: 0.2em; }
a:hover { color: var(--nacre); }

:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 3px;
  border-radius: 3px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* Header */
.top { padding-top: max(1.25rem, env(safe-area-inset-top, 0px)); }
.top-row { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }

.mark {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--kufi);
  font-weight: 700;
  font-size: 1.6rem;
  letter-spacing: 0.01em;
}
html[lang="en"] .mark { letter-spacing: 0.04em; }

.pearl {
  width: 0.95rem;
  height: 0.95rem;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 30%, #ffffff 0 14%, #EEF1EC 30%, #C9D6D3 62%, #8FA9AB 100%);
  box-shadow: 0 0 0 2px var(--brass);
}

.lang {
  font: 500 0.95rem var(--arabic);
  color: var(--mist);
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.35rem 0.8rem;
  cursor: pointer;
}
.lang:hover { color: var(--nacre); border-color: var(--mist); }

/* Intro */
.intro { padding-block: clamp(2rem, 7vw, 4rem) 1.25rem; }
.intro h1 {
  margin: 0;
  font-family: var(--kufi);
  font-weight: 700;
  font-size: clamp(1.9rem, 5.2vw, 3.1rem);
  line-height: 1.35;
  max-width: 22ch;
}
html[lang="en"] .intro h1 { font-family: var(--arabic); font-weight: 600; letter-spacing: -0.01em; max-width: 24ch; line-height: 1.2; }
.lede { color: var(--mist); font-size: 1.08rem; max-width: 62ch; margin: 1rem 0 0; }

/* The probe */
.probe { margin-top: 1.5rem; }
.field-label { display: block; color: var(--mist); font-size: 0.95rem; margin-bottom: 0.4rem; }
.probe-row { display: flex; gap: 0.75rem; flex-wrap: wrap; }

#domain {
  flex: 1 1 16rem;
  min-width: 0;
  font: 500 clamp(1.25rem, 3.4vw, 1.6rem) var(--mono);
  color: var(--nacre);
  background: var(--surface);
  border: 1px solid var(--line);
  border-bottom: 2px solid var(--brass);
  border-radius: var(--radius) var(--radius) 0 0;
  padding: 0.7rem 0.9rem;
  text-align: left;
}
#domain::placeholder { color: rgba(157, 183, 186, 0.55); }

.go {
  font: 600 1.05rem var(--arabic);
  color: var(--water);
  background: var(--brass);
  border: 0;
  border-radius: var(--radius);
  padding: 0.7rem 1.4rem;
  cursor: pointer;
  min-height: 3.2rem;
}
.go:hover { background: #d8b36c; }
.go.stop { background: var(--nacre); }

.error { color: var(--rose); margin: 0.6rem 0 0; }

.options { margin-top: 1.1rem; border-top: 1px solid var(--line); padding-top: 0.8rem; }
.options summary { cursor: pointer; color: var(--mist); width: max-content; }
.options summary:hover { color: var(--nacre); }
.options[open] summary { color: var(--nacre); margin-bottom: 0.8rem; }

.techniques { border: 0; padding: 0; margin: 0 0 1rem; }
.techniques legend { color: var(--mist); font-size: 0.9rem; padding: 0; }
.technique-tools { display: flex; gap: 0.5rem; margin: 0.4rem 0 0.6rem; }
.technique-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(13.5rem, 1fr)); gap: 0.2rem 1rem; }
.technique-list label { display: flex; gap: 0.5rem; align-items: baseline; font-size: 0.95rem; cursor: pointer; }
.technique-list input, .every-tld input { accent-color: var(--brass); }
.every-tld { display: flex; gap: 0.5rem; align-items: baseline; margin-top: 0.8rem; font-size: 0.95rem; cursor: pointer; }

.known { display: grid; grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr)); gap: 0.6rem 1rem; }
.known label, .exclude { display: grid; gap: 0.3rem; font-size: 0.92rem; color: var(--mist); }
.known .hint { grid-column: 1 / -1; }
.known input, .exclude textarea {
  font: 400 0.95rem var(--mono);
  color: var(--nacre);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.45rem 0.6rem;
  width: 100%;
}
.exclude { margin-top: 0.8rem; }
.hint { color: var(--mist); font-size: 0.85rem; margin: 0; }

.small {
  font: 500 0.88rem var(--arabic);
  color: var(--nacre);
  background: none;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.25rem 0.65rem;
  cursor: pointer;
}
.small:hover { border-color: var(--brass); color: var(--brass); }

/* A run */
.run { margin-top: 2.2rem; }
.meter { height: 3px; background: var(--line); border-radius: 2px; overflow: hidden; }
#meter-fill { display: block; height: 100%; width: 0; background: var(--brass); transition: width 0.2s linear; }

.counts { display: flex; flex-wrap: wrap; gap: 0.5rem 2.2rem; margin: 1rem 0 0; }
.counts div { display: flex; flex-direction: column; }
.counts dt { color: var(--mist); font-size: 0.85rem; }
.counts dd { margin: 0; font-size: 1.9rem; font-weight: 500; font-variant-numeric: tabular-nums; line-height: 1.2; }
.counts .c-live dd { color: var(--rose); }
.counts .c-yours dd { color: var(--green); }

.original { color: var(--mist); font-size: 0.92rem; margin: 1rem 0 0; }
.original code { color: var(--nacre); }
.note { color: var(--brass); margin: 0.6rem 0 0; }

.bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.8rem 1.5rem;
  margin-top: 1.4rem;
  border-bottom: 1px solid var(--line);
}
.filters { display: flex; flex-wrap: wrap; gap: 0.2rem 1.2rem; }
.filters button {
  font: 500 0.98rem var(--arabic);
  color: var(--mist);
  background: none;
  border: 0;
  border-bottom: 2px solid transparent;
  padding: 0.5rem 0;
  margin-bottom: -1px;
  cursor: pointer;
}
.filters button[aria-selected="true"] { color: var(--nacre); border-bottom-color: var(--brass); }
.exports { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem; padding-bottom: 0.5rem; }
.exports-label { color: var(--mist); font-size: 0.88rem; margin-inline-end: 0.2rem; }

/* Results */
.results { list-style: none; margin: 0; padding: 0; }
.result {
  display: grid;
  grid-template-columns: 3.2rem 1fr auto;
  gap: 0.3rem 1rem;
  align-items: start;
  padding: 1rem 0;
  border-bottom: 1px solid var(--line);
}
.score {
  width: 2.8rem;
  height: 2.8rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font: 600 1rem var(--arabic);
  font-variant-numeric: tabular-nums;
  border: 2px solid var(--mist);
  color: var(--mist);
}
.score.high { border-color: var(--rose); color: var(--rose); }
.score.medium { border-color: var(--brass); color: var(--brass); }
.score.none { border-style: dashed; }

.loupe {
  margin: 0;
  font: 500 clamp(1.1rem, 2.8vw, 1.35rem) var(--mono);
  direction: ltr;
  text-align: left;
  overflow-wrap: anywhere;
  letter-spacing: 0.02em;
}
html[dir="rtl"] .loupe { text-align: right; }
.loupe .d {
  background: var(--nacre);
  color: var(--water);
  border-radius: 3px;
  padding: 0 0.08em;
  box-shadow: 0 0 0.6rem rgba(238, 241, 236, 0.35);
}
.loupe .gap { position: relative; }
.loupe .gap::before {
  content: "";
  position: absolute;
  inset-inline-start: -0.12em;
  bottom: -0.1em;
  border: 0.22em solid transparent;
  border-bottom-color: var(--brass);
}
.loupe .gap-after::after {
  content: "";
  display: inline-block;
  border: 0.22em solid transparent;
  border-bottom-color: var(--brass);
  vertical-align: bottom;
}
.ascii { display: block; font: 400 0.85rem var(--mono); color: var(--mist); direction: ltr; text-align: inherit; }

.meta { margin: 0.25rem 0 0; color: var(--mist); font-size: 0.93rem; }
.meta .tech { color: var(--nacre); }

.status {
  font-size: 0.88rem;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--mist);
  padding-top: 0.3rem;
}
.status::before { content: ""; width: 0.55rem; height: 0.55rem; border-radius: 50%; background: currentColor; }
.status.live { color: var(--rose); }
.status.registered { color: var(--brass); }
.status.known { color: var(--green); }

.why { grid-column: 2 / -1; }
.why summary { cursor: pointer; color: var(--mist); font-size: 0.9rem; width: max-content; }
.why summary:hover { color: var(--nacre); }
.why ul { margin: 0.5rem 0 0; padding-inline-start: 1.2rem; }
.why li { margin: 0.15rem 0; }
.why code, .meta code, .original code, .story code, .legend code { font-family: var(--mono); font-size: 0.92em; direction: ltr; unicode-bidi: isolate; }
.records { display: grid; grid-template-columns: max-content 1fr; gap: 0.2rem 1rem; margin: 0.7rem 0 0; font-size: 0.9rem; }
.records dt { color: var(--mist); }
.records dd { margin: 0; font-family: var(--mono); direction: ltr; text-align: start; overflow-wrap: anywhere; }
html[dir="rtl"] .records dd { text-align: right; }
.why a { font-size: 0.9rem; }

.empty, .idle p { color: var(--mist); }
.idle { margin-top: 2.2rem; }

/* Reference */
.legend, .story, .cli { margin-top: 3.5rem; }
.legend h2, .story h2, .cli h2 {
  font-family: var(--kufi);
  font-weight: 500;
  font-size: 1.35rem;
  margin: 0 0 0.8rem;
}
html[lang="en"] .legend h2, html[lang="en"] .story h2, html[lang="en"] .cli h2 { font-family: var(--arabic); font-weight: 600; }
.statuses { display: grid; grid-template-columns: max-content 1fr; gap: 0.5rem 1.2rem; margin: 0; }
.statuses dt { font-size: 0.95rem; padding-top: 0.05rem; }
.statuses dd { margin: 0; color: var(--mist); }
.score-note { color: var(--mist); max-width: 62ch; margin-top: 1rem; }
.story p, .cli p { max-width: 62ch; color: var(--mist); }
.story p { color: var(--nacre); font-size: 1.05rem; }
.cli pre {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  overflow-x: auto;
  font: 400 0.92rem/1.7 var(--mono);
  color: var(--nacre);
  text-align: left;
}

.foot { margin-top: 4rem; border-top: 1px solid var(--line); padding-block: 1.6rem max(2rem, env(safe-area-inset-bottom, 0px)); }
.foot p { color: var(--mist); font-size: 0.92rem; max-width: 70ch; }
.foot strong { color: var(--nacre); font-weight: 500; }
.links { display: flex; flex-wrap: wrap; gap: 0.4rem 1.4rem; }

@media (max-width: 34rem) {
  .result { grid-template-columns: 2.8rem 1fr; }
  .status { grid-column: 2; padding-top: 0; }
  .why { grid-column: 1 / -1; }
  .score { width: 2.5rem; height: 2.5rem; font-size: 0.92rem; }
  .counts { gap: 0.5rem 1.4rem; }
  .counts dd { font-size: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}