:root {
  color-scheme: light;
  --ink: #1c1915;
  --muted: #5e564c;
  --paper: #ebe4d6;
  --card: #fbf8f2;
  --line: #e3d9c8;
  --navy: #1e3a34;
  --cream: #f3e6c8;
  --low: #1d6b4f;
  --low-bg: #e5f3ec;
  --mid: #8a5a00;
  --mid-bg: #fff4d8;
  --high: #9f2d2d;
  --high-bg: #fde8e6;
  --serif: "Iowan Old Style", Palatino, "Palatino Linotype", "Liberation Serif", Georgia, serif;
  --sans: "Avenir Next", "Segoe UI", "Liberation Sans", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

.skip {
  position: absolute;
  left: 0.75rem;
  top: 0.75rem;
  transform: translateY(-150%);
  background: white;
  color: var(--ink);
  padding: 0.4rem 0.7rem;
  border-radius: 8px;
  z-index: 3;
}

.skip:focus {
  transform: none;
}

.top {
  background: var(--navy);
  color: #f6f1e6;
  padding: 2.2rem 1.25rem 1.6rem;
}

.top-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.lang {
  display: flex;
  gap: 0.35rem;
  flex: none;
}

.lang button {
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  border: 1px solid rgba(246, 241, 230, 0.4);
  background: transparent;
  color: #f6f1e6;
  cursor: pointer;
}

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

.eyebrow {
  margin: 0;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.72rem;
  color: #d7c4a1;
}

h1 {
  margin: 0.25rem 0 0;
  font-family: var(--serif);
  font-weight: 600;
  font-size: clamp(2rem, 4vw, 3.15rem);
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.lede {
  max-width: 40rem;
  margin: 0.85rem 0 0;
  color: #e6dece;
}

.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 1.25rem;
}

.tab {
  font: inherit;
  font-weight: 600;
  border-radius: 999px;
  padding: 0.48rem 0.95rem;
  border: 1px solid rgba(246, 241, 230, 0.4);
  background: transparent;
  color: #f6f1e6;
  cursor: pointer;
}

.tab[aria-selected="true"] {
  background: var(--cream);
  color: var(--navy);
  border-color: var(--cream);
}

.tab:focus-visible,
.lang button:focus-visible,
.btn:focus-visible,
input:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 2px solid #c45c26;
  outline-offset: 2px;
}

.workspace {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.4rem 1.25rem 0.6rem;
  display: grid;
  grid-template-columns: minmax(300px, 400px) minmax(0, 1fr);
  gap: 1.25rem;
  align-items: start;
}

.panel,
.card,
details {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.panel {
  padding: 1rem 1rem 1.1rem;
}

h2 {
  margin: 0 0 0.75rem;
  font-family: var(--serif);
  font-size: 1.55rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

fieldset {
  border: 0;
  margin: 0 0 1rem;
  padding: 0;
}

legend {
  margin-bottom: 0.7rem;
  padding: 0;
  font-family: var(--serif);
  font-size: 1.05rem;
}

.fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem 0.8rem;
}

.field-wide {
  grid-column: 1 / -1;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.32rem;
  font-size: 0.82rem;
  font-weight: 650;
}

.label-text {
  font-weight: 650;
}

.unit,
.hint {
  font-weight: 500;
  color: var(--muted);
}

.hint {
  font-size: 0.75rem;
  line-height: 1.35;
}

.hint-alert {
  background: #fff4b8;
  color: #3d3420;
  border-radius: 8px;
  padding: 0.45rem 0.55rem;
}

input,
select,
output.computed {
  width: 100%;
  font: inherit;
  font-weight: 550;
  font-size: 1rem;
  color: var(--ink);
  background: white;
  border: 1px solid #d9d0c2;
  border-radius: 8px;
  padding: 0.52rem 0.65rem;
}

output.computed {
  display: block;
  background: #f3eee4;
  min-height: 2.45rem;
}

.flag {
  display: inline-block;
  margin: 0 0 0.9rem;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  background: var(--low-bg);
  color: var(--low);
  font-size: 0.75rem;
  font-weight: 700;
}

.flag.is-custom {
  background: var(--mid-bg);
  color: var(--mid);
}

.form-actions,
.static-lead {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.static-lead {
  justify-content: space-between;
  margin-bottom: 0.85rem;
}

.static-lead p {
  margin: 0;
  max-width: 36rem;
  color: var(--muted);
}

.btn {
  font: inherit;
  font-size: 0.92rem;
  font-weight: 650;
  border-radius: 999px;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
  border: 1px solid #d5cbbd;
  background: white;
  color: var(--navy);
}

.btn:hover,
.tab:hover {
  border-color: var(--navy);
}

.btn-strong {
  background: var(--navy);
  border-color: var(--navy);
  color: #f6f1e6;
}

.btn-strong:hover {
  background: #274a42;
}

.card {
  padding: 0.9rem 1rem 1rem;
  margin-bottom: 0.75rem;
  border-top: 4px solid #d9d0c2;
}

.card:last-child {
  margin-bottom: 0;
}

.card.low { border-top-color: var(--low); }
.card.mid { border-top-color: #c48a12; }
.card.high { border-top-color: var(--high); }

.card-head {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  align-items: flex-start;
}

.card h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.25rem;
}

.full,
.uses {
  margin: 0.12rem 0 0;
  color: var(--muted);
  font-size: 0.84rem;
}

.score-value {
  margin: 0.35rem 0 0.15rem;
  font-family: var(--serif);
  font-size: 2.7rem;
  letter-spacing: -0.03em;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.reading {
  margin: 0.35rem 0 0.2rem;
  font-weight: 700;
}

.uses {
  margin: 0 0 0.6rem;
}

.badge {
  flex: none;
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.22rem 0.5rem;
  border-radius: 999px;
}

.badge.low { background: var(--low-bg); color: var(--low); }
.badge.mid { background: var(--mid-bg); color: var(--mid); }
.badge.high { background: var(--high-bg); color: var(--high); }
.badge.empty { background: #eee7dc; color: var(--muted); }

.bands {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.3rem;
}

.band {
  display: grid;
  grid-template-columns: 6.2rem 1fr;
  gap: 0.65rem;
  padding: 0.42rem 0.55rem;
  border-radius: 8px;
  color: var(--muted);
  font-size: 0.88rem;
}

.band .range {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}

.band.is-active {
  color: var(--ink);
}

.band.is-active.low { background: var(--low-bg); }
.band.is-active.mid { background: var(--mid-bg); }
.band.is-active.high { background: var(--high-bg); }

.preview {
  width: 100%;
  height: min(78vh, 920px);
  border: 1px solid var(--line);
  border-radius: 12px;
  background: white;
}

.reference-wrap,
footer {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.6rem 1.25rem 1.2rem;
}

details {
  padding: 0.85rem 1.05rem 1.05rem;
}

summary {
  cursor: pointer;
  font-family: var(--serif);
  font-size: 1.2rem;
}

.reference h3 {
  margin: 1rem 0 0.4rem;
  font-family: var(--serif);
  font-size: 1.05rem;
}

.scale {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 0.4rem 0 0;
}

.scale li {
  background: #f3eee4;
  border-radius: 10px;
  padding: 0.6rem;
  font-size: 0.82rem;
}

.scale strong {
  display: block;
  font-size: 0.95rem;
}

.formula {
  margin: 0;
  background: #f3eee4;
  border-radius: 8px;
  padding: 0.6rem 0.75rem;
  font-size: 0.92rem;
}

.footnote,
footer p {
  color: var(--muted);
  font-size: 0.88rem;
}

footer p {
  margin: 0 0 0.35rem;
}

.noscript {
  max-width: 1100px;
  margin: 0 auto 1.5rem;
  padding: 0 1.25rem;
}

@media (max-width: 860px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .scale {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .fields,
  .scale {
    grid-template-columns: 1fr;
  }

  .static-lead {
    align-items: stretch;
  }

  .band {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }
}

#print-root {
  display: none;
}

@media print {
  @page {
    size: A4;
    margin: 14mm;
  }

  body > *:not(#print-root) {
    display: none !important;
  }

  #print-root {
    display: block !important;
    background: white;
    color: #1c1915;
  }

  #print-root main {
    max-width: none;
    margin: 0;
    padding: 0;
  }

  #print-root h1,
  #print-root h2,
  #print-root h3 {
    font-family: Georgia, "Liberation Serif", serif;
    color: #1c1915;
  }

  #print-root h1 {
    font-size: 1.7rem;
    margin: 0.15rem 0 0.4rem;
  }

  #print-root .eyebrow,
  #print-root .meta,
  #print-root .uses,
  #print-root footer {
    color: #5e564c;
  }

  #print-root .eyebrow {
    letter-spacing: 0.12em;
    text-transform: uppercase;
    font-size: 0.75rem;
    margin: 0;
  }

  #print-root table {
    width: 100%;
    border-collapse: collapse;
  }

  #print-root th,
  #print-root td {
    text-align: left;
    padding: 0.28rem 0.4rem;
    border-bottom: 1px solid #ddd4c6;
    vertical-align: top;
  }

  #print-root th {
    width: 46%;
  }

  #print-root .score {
    margin: 0.7rem 0;
    padding-left: 0.7rem;
    border-left: 4px solid #d9d0c2;
    break-inside: avoid;
  }

  #print-root .score.low { border-left-color: #1d6b4f; }
  #print-root .score.mid { border-left-color: #c48a12; }
  #print-root .score.high { border-left-color: #9f2d2d; }

  #print-root .score header {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: baseline;
  }

  #print-root h2 {
    font-size: 1.15rem;
    margin: 0;
  }

  #print-root h2 small {
    display: block;
    font-family: "Segoe UI", "Liberation Sans", sans-serif;
    font-size: 0.75rem;
    color: #5e564c;
    font-weight: 500;
  }

  #print-root .value {
    margin: 0;
    font-family: Georgia, "Liberation Serif", serif;
    font-size: 1.6rem;
  }

  #print-root .reading {
    font-weight: 700;
    margin: 0.25rem 0 0.1rem;
  }

  #print-root .uses {
    margin: 0 0 0.3rem;
    font-size: 0.85rem;
  }

  #print-root ul {
    margin: 0;
    padding-left: 1.1rem;
  }

  #print-root li {
    margin: 0.12rem 0;
    color: #5e564c;
  }

  #print-root li.active {
    color: #1c1915;
    font-weight: 650;
  }

  #print-root h3 {
    margin: 1rem 0 0.35rem;
    break-after: avoid;
  }

  #print-root table,
  #print-root h3 {
    break-inside: avoid;
  }

  #print-root footer {
    font-size: 0.85rem;
    margin-top: 1rem;
  }
}