:root {
  --ink: #1d2430;
  --muted: #5e6874;
  --line: #ddd6c8;
  --paper: #f3f0e8;
  --card: #fffdf9;
  --navy: #1b3f5c;
  --red: #8e2f2f;
  --ok: #0f7a45;
  --ok-bg: #e7f6ee;
  --warn: #8a4b08;
  --warn-bg: #fff4e4;
  --bad: #9f1d32;
  --bad-bg: #fdecef;
  --focus: #1b3f5c;
  color-scheme: light;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

body {
  margin: 0;
  color: var(--ink);
  font-family: "Segoe UI", "Segoe UI Variable", sans-serif;
  font-size: 16px;
  line-height: 1.45;
  background: var(--paper);
}

body.cosmic {
  --paper: #f4f7fb;
  --card: #ffffff;
  --line: #d7e0ea;
  --navy: #0d5f8a;
  --focus: #0d5f8a;
  background: var(--paper);
}

button, input, select { font: inherit; color: inherit; }

.top {
  position: sticky;
  top: 0;
  z-index: 5;
  background: #fff;
  border-bottom: 1px solid var(--line);
}

.top-inner, .top-action, main {
  width: min(720px, calc(100% - 32px));
  margin: 0 auto;
}

.wide { width: min(1080px, calc(100% - 32px)); }

.top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 16px;
}

.mark {
  color: var(--navy);
  font-weight: 700;
  text-decoration: none;
  letter-spacing: -0.02em;
}

.mark span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0;
}

nav { display: flex; gap: 6px; }

nav a {
  color: var(--ink);
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 999px;
}

nav a[aria-current="page"] {
  background: var(--navy);
  color: #fff;
}

main { padding: 28px 0 48px; }

.site-foot {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
  padding: 0 0 28px;
  color: var(--muted);
  font-size: 13px;
}

.intro { margin: 0 0 16px; font-size: 17px; }

.steps {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0 0 18px;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.steps li {
  counter-increment: step;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px 6px 8px;
  color: var(--muted);
  font-size: 14px;
}

.steps li::before {
  content: counter(step);
  display: inline-grid;
  place-items: center;
  width: 22px;
  height: 22px;
  margin-right: 6px;
  border-radius: 50%;
  background: var(--navy);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
}

.sheet, .cosmic-card, .note, .result, .waiting {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 22px;
}

.sheet-head, .cosmic-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

h1, h2 { margin: 0; font-weight: 700; letter-spacing: -0.03em; }
h1 { font-size: 28px; color: var(--navy); }
h2 { font-size: 18px; margin-bottom: 10px; }

.sheet-actions, .cosmic-head .sheet-actions { display: flex; gap: 8px; }

.text {
  background: transparent;
  border: 0;
  color: var(--navy);
  cursor: pointer;
  padding: 6px 2px;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.field { margin-top: 18px; }
.field label, .label, .stop-label { font-weight: 650; }
.field b, .stop b {
  color: var(--red);
  font-weight: 750;
  margin-right: 4px;
}

.control {
  margin-top: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.bp {
  margin-top: 6px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr) auto;
  gap: 8px;
  align-items: end;
}

.bp .sub {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
  font-weight: 650;
  min-width: 0;
}

input[type="text"], select, .control input, .bp input, #entry select {
  width: 100%;
  height: 52px;
  border: 1.5px solid #c9c1b3;
  border-radius: 10px;
  background: #fff;
  padding: 0 14px;
  font-size: 22px;
  font-variant-numeric: tabular-nums;
}

body.cosmic input, body.cosmic select {
  border-color: #c5d3e0;
  font-size: 18px;
}

input:focus, select:focus, button:focus-visible {
  outline: 3px solid rgba(27, 63, 92, 0.35);
  border-color: var(--focus);
}

.control input { flex: 1; min-width: 0; }
.control span, .bp .unit, .unit {
  color: var(--muted);
  font-style: normal;
  white-space: nowrap;
}

.slash { color: var(--ink); font-size: 22px; padding-bottom: 12px; }

.tick {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 8px;
  margin-top: 8px;
  font-weight: 500;
}

.tick input { width: 18px; height: 18px; margin-top: 2px; accent-color: var(--navy); }
.tick em { flex: 1 0 100%; padding-left: 26px; }
.tick em, .help { color: var(--muted); font-style: normal; font-weight: 450; font-size: 14px; }
.help { margin: 6px 0 0; }

.segment {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 6px;
}

.segment button, .choice {
  height: 48px;
  border-radius: 10px;
  border: 1.5px solid #c9c1b3;
  background: #fff;
  cursor: pointer;
}

.segment button[aria-pressed="true"] {
  background: var(--navy);
  border-color: var(--navy);
  color: #fff;
}

.news {
  margin-top: 22px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.score {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 6px;
  margin-top: 10px;
}

.score div {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 4px;
  text-align: center;
}

.score span { display: block; color: var(--muted); font-size: 11px; letter-spacing: 0.04em; }
.score strong { display: block; font-size: 20px; font-variant-numeric: tabular-nums; }
.score .total.band-low { background: var(--ok-bg); color: var(--ok); }
.score .total.band-lowmid { background: var(--warn-bg); color: var(--warn); }
.score .total.band-mid, .score .total.band-high { background: var(--bad-bg); color: var(--bad); }

.warnings {
  margin-top: 14px;
  background: var(--warn-bg);
  color: var(--warn);
  border-radius: 12px;
  padding: 10px 12px;
}
.warnings p { margin: 4px 0; }

.tabs-view { margin-top: 16px; }
.tabs-view summary { cursor: pointer; color: var(--navy); font-weight: 650; }
.tabs-view p { margin: 8px 0; }
.tabs { color: var(--navy); font-variant-numeric: tabular-nums; font-weight: 700; }
.flow-note { color: var(--muted); }

.top-action { padding-bottom: 12px; }
.top-action .primary { height: 48px; }
.install { margin: 4px 0 12px; }
.copy-bar .help a { color: var(--navy); font-weight: 700; }
.copy-bar .text { display: block; margin-top: 10px; }
.copy-bar .text:disabled { opacity: 0.45; cursor: not-allowed; }

.primary {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 56px;
  border: 0;
  border-radius: 12px;
  background: var(--navy);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}

.primary:disabled { opacity: 0.45; cursor: not-allowed; }

.status {
  margin-top: 14px;
  background: var(--ok-bg);
  border-radius: 12px;
  padding: 12px 14px;
}
.status p { margin: 4px 0; }
.status .lead { font-weight: 750; }
.status a { color: var(--navy); font-weight: 700; }
.status.error { background: var(--warn-bg); color: var(--ink); }
.status .raw {
  width: 100%;
  height: 72px;
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.4;
}

.sr {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(240px, 0.8fr);
  gap: 20px;
  align-items: start;
}

.layout > * { min-width: 0; }

input, select { min-width: 0; max-width: 100%; }

.hud, .waiting {
  margin-bottom: 12px;
}

.hud {
  background: #e7f1f8;
  color: var(--navy);
  border-radius: 12px;
  padding: 10px 12px;
  font-weight: 650;
}

.hud.warn {
  background: var(--warn-bg);
  color: var(--warn);
}

.waiting ul, .note ul, .check { margin: 8px 0 0; padding-left: 18px; }
.waiting li { margin: 2px 0; }

.stop { margin-top: 14px; }
.stop > label:not(.flag) {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  column-gap: 8px;
  align-items: center;
}
.stop .stop-label,
.stop small { grid-column: 1 / -1; }
.stop small { color: var(--muted); font-size: 13px; margin: 2px 0 0; }
.stop input[type="text"],
.stop select { margin-top: 6px; }
.flag { display: flex; align-items: center; gap: 8px; font-weight: 650; }
.flag input { width: 18px; height: 18px; max-width: none; accent-color: var(--navy); }

.stop-gap input {
  height: 40px;
  background: #f7f4ec;
  border-style: dashed;
  font-size: 16px;
}

body.cosmic .stop-gap input { background: #f4f7fb; }

.bp-row {
  display: grid;
  grid-template-columns: 1fr 1fr 0.8fr;
  gap: 10px;
}

.choice-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.choice {
  min-width: 72px;
  background: #fff;
}

.choice[aria-pressed="true"] {
  background: #e7f1f8;
  border-color: var(--navy);
  color: var(--navy);
  font-weight: 700;
}

.stop.match input, .stop.match select { border-color: var(--ok); background: var(--ok-bg); }
.stop.mismatch input, .stop.mismatch select { border-color: var(--bad); background: var(--bad-bg); }

.check { display: block; list-style: none; padding: 0; }
.check li { padding: 6px 0 6px 26px; position: relative; }
.check li::before { position: absolute; left: 0; font-weight: 800; }
.check .ok::before { content: "✓"; color: var(--ok); }
.check .bad::before { content: "!"; color: var(--bad); }
.bad-text { color: var(--bad); }
.result .lead { font-weight: 750; }
.note { margin-top: 12px; }
.note p, .note li { color: var(--muted); }
aside .result { margin-bottom: 0; }

@media (max-width: 800px) {
  .layout { grid-template-columns: 1fr; }
  .score { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .bp-row { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .bp { grid-template-columns: 1fr; }
  .slash { display: none; }
  .top-inner, .top-action, main, .wide { width: min(720px, calc(100% - 20px)); }
  nav a { padding: 8px 10px; }
  .sheet-head, .cosmic-head { flex-direction: column; align-items: flex-start; }
  .sheet-actions { flex-wrap: wrap; }
}