/* ============================================================
 * theme.css — TEMA de la guía "El ADN" (capa LIBRE).
 * Prefijo: adn-
 * Usa solo var(--guia-*). No hardcodea hex de marca.
 * Pisos de letra: lectura ≥17px · apoyo ≥15px · etiquetas MAYÚS ≥13px.
 * ============================================================ */

/* ─── Leyenda de color semántico (nucleótido) ─── */
.adn-legend {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.2rem;
  margin: .75rem 0 1rem;
  font-size: 15px;
}
.adn-legend-item {
  display: flex;
  align-items: center;
  gap: .4rem;
}
.adn-swatch {
  width: 18px;
  height: 18px;
  border-radius: 4px;
  display: inline-block;
  flex-shrink: 0;
}
.adn-swatch--azucar  { background: var(--adn-azucar, #C75D08); }
.adn-swatch--fosfato { background: var(--adn-fosfato, #283891); }
.adn-swatch--base-a  { background: var(--adn-base-a, #1C7A3A); }
.adn-swatch--base-t  { background: var(--adn-base-t, #8B2FC9); }
.adn-swatch--base-c  { background: var(--adn-base-c, #C7850A); }
.adn-swatch--base-g  { background: var(--adn-base-g, #0A6E94); }

/* ─── Colores semánticos del tema ─── */
:root {
  --adn-azucar:   var(--guia-orange, #C75D08);
  --adn-fosfato:  var(--guia-navy,   #283891);
  --adn-puente-h: var(--guia-muted,  #8B9EB7);
  --adn-base-a:   #1C7A3A;
  --adn-base-t:   #8B2FC9;
  --adn-base-c:   #C7850A;
  --adn-base-g:   #0A6E94;
  --adn-uracilo:  #b5451b;
  --adn-arnm:     #7B3F00;
  --adn-proteina: #1C7A3A;
}

/* ─── Contenedor de SVG / diagrama ─── */
.adn-svg-wrap {
  width: 100%;
  max-width: 520px;
  margin: .75rem auto;
}
.adn-svg-wrap svg {
  width: 100%;
  height: auto;
  display: block;
}

/* ─── Widget: emparejamiento de bases (M3) ─── */
.adn-match-widget {
  background: var(--guia-cream, #FBF8F4);
  border: 1.5px solid var(--guia-line, #D9D3CB);
  border-radius: 10px;
  padding: 1.25rem 1rem 1rem;
  margin: .75rem 0;
}
.adn-match-prompt {
  font-size: 15px;
  color: var(--guia-muted, #637083);
  margin-bottom: .75rem;
}
.adn-match-question {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}
.adn-base-label {
  font-size: 32px;
  font-weight: 800;
  color: var(--guia-ink, #1C2B3A);
  min-width: 48px;
  text-align: center;
}
.adn-match-options {
  display: flex;
  gap: .6rem;
  flex-wrap: wrap;
  justify-content: center;
}
.adn-match-btn {
  font-size: 20px;
  font-weight: 700;
  width: 52px;
  height: 52px;
  border-radius: 10px;
  border: 2px solid var(--guia-line, #D9D3CB);
  background: #fff;
  cursor: pointer;
  transition: background .15s, border-color .15s;
  color: var(--guia-ink, #1C2B3A);
}
.adn-match-btn:hover,
.adn-match-btn:focus-visible {
  border-color: var(--guia-orange, #C75D08);
  background: #fdf2e9;
}
.adn-match-btn.correcto {
  background: var(--guia-green, #1C7A3A);
  border-color: var(--guia-green, #1C7A3A);
  color: #fff;
}
.adn-match-btn.incorrecto {
  background: #c0392b;
  border-color: #c0392b;
  color: #fff;
}
.adn-match-feedback {
  font-size: 15px;
  min-height: 1.5em;
  text-align: center;
  margin-top: .5rem;
}
.adn-match-progress {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--guia-muted, #637083);
  text-align: right;
  margin-top: .5rem;
}

/* ─── Widget: ordenar niveles (M6) ─── */
.adn-sort-widget {
  background: var(--guia-cream, #FBF8F4);
  border: 1.5px solid var(--guia-line, #D9D3CB);
  border-radius: 10px;
  padding: 1.25rem 1rem;
  margin: .75rem 0;
}
.adn-sort-prompt {
  font-size: 15px;
  color: var(--guia-muted, #637083);
  margin-bottom: .75rem;
}
.adn-sort-list {
  list-style: none;
  padding: 0;
  margin: 0 0 .75rem;
  display: flex;
  flex-direction: column;
  gap: .45rem;
}
.adn-sort-item {
  background: #fff;
  border: 1.5px solid var(--guia-line, #D9D3CB);
  border-radius: 8px;
  padding: .6rem 1rem;
  font-size: 17px;
  cursor: pointer;
  user-select: none;
  transition: border-color .15s, background .15s;
  display: flex;
  align-items: center;
  gap: .75rem;
}
.adn-sort-item .adn-sort-n {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--guia-muted, #637083);
  min-width: 22px;
  text-align: center;
}
.adn-sort-item.activo {
  border-color: var(--guia-orange, #C75D08);
  background: #fdf2e9;
}
.adn-sort-item.correcto {
  border-color: var(--guia-green, #1C7A3A);
  background: #edf7f0;
}
.adn-sort-item.incorrecto {
  border-color: #c0392b;
  background: #fdecea;
}
.adn-sort-feedback {
  font-size: 15px;
  min-height: 1.5em;
  margin-top: .5rem;
}
.adn-sort-btn {
  font-size: 15px;
  font-weight: 600;
  padding: .5rem 1.25rem;
  border-radius: 8px;
  border: 2px solid var(--guia-orange, #C75D08);
  background: var(--guia-orange, #C75D08);
  color: #fff;
  cursor: pointer;
  margin-top: .5rem;
}

/* ─── Widget: animaciones (replicación M7 / dogma M8) ─── */
.adn-anim-widget {
  background: var(--guia-cream, #FBF8F4);
  border: 1.5px solid var(--guia-line, #D9D3CB);
  border-radius: 10px;
  padding: 1.25rem 1rem 1rem;
  margin: .75rem 0;
}
.adn-anim-canvas {
  width: 100%;
  border-radius: 8px;
  background: var(--guia-deep, #1C2B3A);
  display: block;
  margin-bottom: .75rem;
}
.adn-anim-controls {
  display: flex;
  gap: .5rem;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: .5rem;
}
.adn-anim-btn {
  font-size: 15px;
  font-weight: 600;
  padding: .45rem 1rem;
  border-radius: 8px;
  border: 2px solid var(--guia-orange, #C75D08);
  background: var(--guia-orange, #C75D08);
  color: #fff;
  cursor: pointer;
  transition: background .15s;
}
.adn-anim-btn.ghost {
  background: transparent;
  color: var(--guia-orange, #C75D08);
}
.adn-anim-phase-label {
  font-size: 17px;
  font-weight: 700;
  color: var(--guia-orange, #C75D08);
  margin-bottom: .25rem;
}
.adn-anim-phase-desc {
  font-size: 15px;
  color: var(--guia-ink, #1C2B3A);
  min-height: 3em;
}

/* ─── Widget: tabla comparativa ADN vs ARN (M9) ─── */
.adn-tabla-comp {
  width: 100%;
  border-collapse: collapse;
  font-size: 16px;
  margin: .75rem 0;
}
.adn-tabla-comp th,
.adn-tabla-comp td {
  border: 1.5px solid var(--guia-line, #D9D3CB);
  padding: .6rem .75rem;
  text-align: left;
  vertical-align: top;
}
.adn-tabla-comp th {
  background: var(--guia-navy, #283891);
  color: #fff;
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.adn-tabla-comp th:first-child {
  background: var(--guia-deep, #1C2B3A);
}
.adn-tabla-comp td:first-child {
  font-weight: 700;
  color: var(--guia-ink, #1C2B3A);
  background: var(--guia-cream, #FBF8F4);
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: .03em;
}
.adn-tabla-comp tr:nth-child(even) td:not(:first-child) {
  background: #f7f5f1;
}

/* ─── Widget: clasificar mutación (M9) ─── */
.adn-mut-widget {
  background: var(--guia-cream, #FBF8F4);
  border: 1.5px solid var(--guia-line, #D9D3CB);
  border-radius: 10px;
  padding: 1.25rem 1rem;
  margin: .75rem 0;
}
.adn-mut-seqs {
  font-family: "Courier New", Courier, monospace;
  font-size: 17px;
  margin-bottom: .75rem;
  display: flex;
  flex-direction: column;
  gap: .3rem;
}
.adn-mut-seqs span {
  display: block;
}
.adn-mut-seqs .orig  { color: var(--guia-muted, #637083); }
.adn-mut-seqs .mutad { color: var(--guia-ink, #1C2B3A); font-weight: 700; }
.adn-mut-seqs mark {
  background: #fde68a;
  border-radius: 3px;
  padding: 0 2px;
  color: inherit;
}
.adn-mut-desc {
  font-size: 15px;
  color: var(--guia-muted, #637083);
  margin-bottom: .75rem;
}
.adn-mut-options {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
}
.adn-mut-btn {
  font-size: 15px;
  font-weight: 600;
  padding: .5rem 1.1rem;
  border-radius: 8px;
  border: 2px solid var(--guia-line, #D9D3CB);
  background: #fff;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.adn-mut-btn:hover,
.adn-mut-btn:focus-visible {
  border-color: var(--guia-orange, #C75D08);
}
.adn-mut-btn.correcto  { background: #edf7f0; border-color: var(--guia-green, #1C7A3A); color: var(--guia-green, #1C7A3A); }
.adn-mut-btn.incorrecto{ background: #fdecea; border-color: #c0392b; color: #c0392b; }
.adn-mut-feedback {
  font-size: 15px;
  min-height: 1.5em;
  margin-top: .6rem;
}
.adn-mut-nav {
  margin-top: .75rem;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--guia-muted, #637083);
}

/* ─── Widget: calculadora de escala (M10) ─── */
.adn-calc-widget {
  background: var(--guia-cream, #FBF8F4);
  border: 1.5px solid var(--guia-line, #D9D3CB);
  border-radius: 10px;
  padding: 1.25rem 1rem;
  margin: .75rem 0;
}
.adn-calc-slider-row {
  display: flex;
  flex-direction: column;
  gap: .35rem;
  margin-bottom: 1rem;
}
.adn-calc-slider-label {
  font-size: 15px;
  color: var(--guia-muted, #637083);
}
.adn-calc-slider {
  width: 100%;
  accent-color: var(--guia-orange, #C75D08);
}
.adn-calc-celulas-val {
  font-size: 20px;
  font-weight: 700;
  color: var(--guia-orange, #C75D08);
}
.adn-calc-resultados {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .6rem;
}
@media (max-width: 460px) {
  .adn-calc-resultados { grid-template-columns: 1fr; }
}
.adn-calc-stat {
  background: #fff;
  border: 1.5px solid var(--guia-line, #D9D3CB);
  border-radius: 8px;
  padding: .65rem .85rem;
}
.adn-calc-stat-label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--guia-muted, #637083);
  margin-bottom: .2rem;
}
.adn-calc-stat-val {
  font-size: 20px;
  font-weight: 800;
  color: var(--guia-navy, #283891);
}

/* ─── SVG interactivo: célula-núcleo-ADN (M1) ─── */
.adn-celula-wrap {
  max-width: 480px;
  margin: .75rem auto;
}

/* ─── SVG doble hélice (M4) ─── */
.adn-helice-wrap {
  max-width: 420px;
  margin: .75rem auto;
}

/* ─── SVG antiparalelas (M5) ─── */
.adn-antipar-wrap {
  max-width: 380px;
  margin: .75rem auto;
}

/* ─── Bloque de aplicaciones (M10) ─── */
.adn-apps-list {
  margin: .5rem 0;
  padding-left: 1.2rem;
}
.adn-apps-list li {
  font-size: 17px;
  margin-bottom: .65rem;
  line-height: 1.55;
}

/* ─── Responsivo móvil ─── */
@media (max-width: 400px) {
  .adn-match-btn  { width: 46px; height: 46px; font-size: 18px; }
  .adn-base-label { font-size: 28px; }
  .adn-tabla-comp { font-size: 14px; }
  .adn-tabla-comp th,
  .adn-tabla-comp td { padding: .45rem .5rem; }
}

@media print {
  .adn-match-widget,
  .adn-sort-widget,
  .adn-anim-widget,
  .adn-mut-widget,
  .adn-calc-widget { display: none !important; }
}