/* Preferencia de apariencia: claro por defecto; la elección se guarda por sitio. */
.option-image { display: block; width: auto; height: auto; max-width: 100%; max-height: 280px; object-fit: contain; background: #fff; border-radius: 6px; padding: 8px; }
.review-body .option-image { display: block; max-height: 280px; margin: 10px 0; }
.option-editor-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 20px; }
.option-editor { display: grid; align-content: start; gap: 16px; min-width: 0; margin: 0; padding: 18px; border: 1px solid var(--line); border-radius: 10px; background: var(--paper); }
.option-editor legend { padding-inline: 7px; font-size: 17px; font-weight: 650; color: var(--primary); }
.option-editor .field, .option-editor input { min-width: 0; max-width: 100%; }
.option-editor .option-image { max-height: 230px; }
@media (max-width: 700px) { .option-editor-grid { grid-template-columns: minmax(0,1fr); } }
:root {
  color-scheme: light;
  --disabled-surface: #e8edf5;
  --disabled-border: #a7b5cb;
  --disabled-ink: #60708a;
}
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--primary);
}
.theme-toggle:hover { background: var(--primary-soft); border-color: var(--primary-border); }
.theme-toggle .icon { width: 20px; height: 20px; }
.theme-toggle .theme-sun, .brand-mark .logo-dark { display: none; }
:root[data-theme="dark"] .theme-toggle .theme-moon,
:root[data-theme="dark"] .brand-mark .logo-light { display: none; }
:root[data-theme="dark"] .theme-toggle .theme-sun,
:root[data-theme="dark"] .brand-mark .logo-dark { display: block; }

@media (max-width: 600px) {
  .header-inner nav { gap: 8px; }
  .nav-login span { display: none; }
  .nav-login, .theme-toggle { width: 38px; height: 38px; min-height: 38px; padding: 0; justify-content: center; }
  .nav-login .icon { width: 18px; height: 18px; }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --disabled-surface: #121e34;
  --disabled-border: #526582;
  --disabled-ink: #9eacc5;
  --paper: #0f172a;
  --surface: #17233b;
  --surface-raised: #1e2f4d;
  --ink: #c3cee2;
  --muted: #b1bfd8;
  --heading-color: #b9ccff;
  --line: #3e5171;
  --primary: #a7bfff;
  --primary-soft: #23365c;
  --primary-border: #536fa4;
  --accent: #f6b44b;
  --accent-hover: #ffc366;
  --accent-ink: #51627e;
  --accent-soft: #3c2d1b;
  --accent-text: #f6b44b;
  --accent-border: #df9d26;
  --focus-ring: #f6b44b;
  --success: #a0e2be;
  --success-soft: #163b30;
  --danger: #ffb7c0;
  --danger-soft: #402633;
}
:root[data-theme="dark"] body,
:root[data-theme="dark"] body.focus-mode { background: var(--paper); color: var(--ink); }
:root[data-theme="dark"] a:focus-visible,
:root[data-theme="dark"] button:focus-visible,
:root[data-theme="dark"] .answer:has(input:focus-visible) { outline-color: var(--accent-text); }
:root[data-theme="dark"] ::selection { background: #795520; color: #fff; }

:root[data-theme="dark"] .category-card,
:root[data-theme="dark"] .subject-card,
:root[data-theme="dark"] .start-panel,
:root[data-theme="dark"] .result-summary,
:root[data-theme="dark"] .review-item,
:root[data-theme="dark"] .cookie-panel,
:root[data-theme="dark"] .login-card,
:root[data-theme="dark"] .admin-panel,
:root[data-theme="dark"] .stats-grid > div,
:root[data-theme="dark"] .table-wrap,
:root[data-theme="dark"] .recent-card,
:root[data-theme="dark"] .illustration-sheet,
:root[data-theme="dark"] .floating-note,
:root[data-theme="dark"] .search-box,
:root[data-theme="dark"] .nav-login,
:root[data-theme="dark"] .theme-toggle,
:root[data-theme="dark"] .field input,
:root[data-theme="dark"] .field textarea,
:root[data-theme="dark"] .field select,
:root[data-theme="dark"] .year-bar select,
:root[data-theme="dark"] .duplicate input,
:root[data-theme="dark"] .score-circle > div { background: var(--surface); }

:root[data-theme="dark"] .eyebrow,
:root[data-theme="dark"] .encouragement-card > span:first-child,
:root[data-theme="dark"] .continue-section .eyebrow,
:root[data-theme="dark"] .catalog-note p,
:root[data-theme="dark"] .admin-sidebar > .eyebrow,
:root[data-theme="dark"] .admin-content > .eyebrow,
:root[data-theme="dark"] .admin-sidebar nav a { color: var(--muted); }
:root[data-theme="dark"] .hero h1 em,
:root[data-theme="dark"] .encouragement-card h3 em { color: var(--accent-text); }
:root[data-theme="dark"] .underline { stroke: var(--accent); }
:root[data-theme="dark"] .art-orbit { border-color: var(--line); }
:root[data-theme="dark"] .orbit-one { background: #1e2f4d; }
:root[data-theme="dark"] .art-spark { color: var(--accent); }
:root[data-theme="dark"] .sheet-progress,
:root[data-theme="dark"] .question-progress { background: var(--line); }
:root[data-theme="dark"] .sheet-progress span { background: #9fbaff; }
:root[data-theme="dark"] .sheet-option b { color: var(--muted); }
:root[data-theme="dark"] .sheet-option i { background: #3e5171; }
:root[data-theme="dark"] .picked i { background: #5b75aa; }
:root[data-theme="dark"] .picked b { background: #3556a8; border-color: #3556a8; color: #fff; }
:root[data-theme="dark"] .mini-icon.amber { color: var(--accent-text); }
:root[data-theme="dark"] .doodle-star { color: #354f7a; }

:root[data-theme="dark"] .trust-strip,
:root[data-theme="dark"] .start-banner { background: #1b2d51; border-color: #405c8b; }
:root[data-theme="dark"] .trust-strip > .container { color: var(--ink); }
:root[data-theme="dark"] .catalog-tabs button:hover,
:root[data-theme="dark"] .admin-sidebar nav a:hover,
:root[data-theme="dark"] .theme-toggle:hover { background: var(--surface-raised); }
:root[data-theme="dark"] .category-card,
:root[data-theme="dark"] .category-icon { --category-accent: #b9ccff; --category-soft: #23365c; }
:root[data-theme="dark"] .category-card.purple,
:root[data-theme="dark"] .category-icon.purple { --category-accent: #b9ccff; --category-soft: #23365c; }
:root[data-theme="dark"] .category-card.blue,
:root[data-theme="dark"] .category-icon.blue { --category-accent: #a7bfff; --category-soft: #23365c; }
:root[data-theme="dark"] .category-card.orange,
:root[data-theme="dark"] .category-icon.orange { --category-accent: #f6b44b; --category-soft: #3c2d1b; }
:root[data-theme="dark"] .category-card.rose,
:root[data-theme="dark"] .category-icon.rose { --category-accent: #b9ccff; --category-soft: #23365c; }
:root[data-theme="dark"] .card-number { color: #b1bfd8; }

:root[data-theme="dark"] .field input,
:root[data-theme="dark"] .field textarea,
:root[data-theme="dark"] .field select,
:root[data-theme="dark"] .duplicate input,
:root[data-theme="dark"] .answer { border-color: #536b91; }
:root[data-theme="dark"] .duplicate input { color: var(--ink); }
:root[data-theme="dark"] .question-image { background: transparent; }
:root[data-theme="dark"] .answer { background: var(--surface); }
:root[data-theme="dark"] .answer-letter { background: var(--surface-raised); color: var(--primary); }
:root[data-theme="dark"] .answer:has(input:checked) { background: var(--primary-soft); border-color: var(--primary); }
:root[data-theme="dark"] .answer:has(input:checked) .answer-letter { background: #3556a8; border-color: #3556a8; color: #fff; }
:root[data-theme="dark"] .answer.is-correct,
:root[data-theme="dark"] .answer.is-correct:has(input:checked) { background: var(--success-soft); border-color: #77aa8d; }
:root[data-theme="dark"] .answer.is-correct .answer-letter,
:root[data-theme="dark"] .answer.is-correct:has(input:checked) .answer-letter { background: #276449; border-color: #276449; color: #fff; }
:root[data-theme="dark"] .answer.is-wrong,
:root[data-theme="dark"] .answer.is-wrong:has(input:checked) { background: var(--danger-soft); border-color: #c67d8b; }
:root[data-theme="dark"] .answer.is-wrong .answer-letter,
:root[data-theme="dark"] .answer.is-wrong:has(input:checked) .answer-letter { background: #a23845; border-color: #a23845; color: #fff; }
:root[data-theme="dark"] .answer-feedback { background: #203458; border-color: #536fa4; color: #c5d6ff; }
:root[data-theme="dark"] .notice,
:root[data-theme="dark"] .status:not(.published) { background: #3c2d1b; border-color: #926b36; color: #f6cd8b; }
:root[data-theme="dark"] .score-circle { background: conic-gradient(var(--primary) var(--score), var(--line) 0); }

:root[data-theme="dark"] .site-footer { background: #14233f; border-color: #3e5171; }
:root[data-theme="dark"] .footer-bottom { border-color: #536b91; }

/* Make the native disabled state clear without reducing text legibility. */
input:disabled, select:disabled, textarea:disabled { cursor: not-allowed; }
:root[data-theme] :is(input, select, textarea):disabled:not([type="radio"]):not([type="checkbox"]) {
  background: var(--disabled-surface);
  color: var(--disabled-ink);
  -webkit-text-fill-color: var(--disabled-ink);
  border: 1px dashed var(--disabled-border);
  box-shadow: none;
  opacity: 1;
}
.field:has(> :is(input, select, textarea):disabled) > span { color: var(--disabled-ink); }
.field:has(> :is(input, select, textarea):disabled) > span::after {
  content: 'Deshabilitado';
  display: inline-block;
  margin-left: 8px;
  padding: 1px 7px;
  border: 1px solid var(--disabled-border);
  border-radius: 5px;
  background: var(--disabled-surface);
  color: var(--disabled-ink);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.6;
  letter-spacing: 0;
}

/* Enlaces del administrador hacia el sitio público. */
.public-link-icon { width: 16px; height: 16px; margin-inline-start: .3em; vertical-align: -.15em; }
.public-new-tab.brand .public-link-icon { margin-inline-start: 0; }
.footer-brand.public-new-tab > .public-link-icon { display: inline-block; }
.footer-brand { display: inline-flex; align-items: center; gap: 12px; max-width: 100%; }
.footer-brand > .footer-brand-copy { min-width: 0; margin: 0; color: inherit; font: inherit; letter-spacing: inherit; }
.footer-logo { display: block; flex-shrink: 0; width: 48px; height: 48px; }
@media (max-width: 600px) { .footer-logo { width: 42px; height: 42px; } }

/* Vista previa de redes, limitada al editor de categorías. */
.category-social { min-width: 0; padding: 24px; border: 1px solid var(--line, #ccd9e7); border-radius: 16px; }
.category-social legend { padding: 0 8px; font-weight: 700; }
.category-social-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 28px; margin-top: 20px; }
.category-social-fields { display: grid; gap: 16px; }
.category-social-preview { margin-top: 12px; border: 1px solid var(--line, #ccd9e7); border-radius: 12px; overflow: hidden; }
.category-social-preview img { display: block; width: 100%; height: auto; aspect-ratio: 1200 / 630; object-fit: contain; background: var(--bg, #faf8f2); }
.category-social-preview > div { padding: 18px; }
.category-social-preview strong { display: block; margin-top: 6px; font-size: 21px; line-height: 1.35; overflow-wrap: anywhere; }
.category-social-preview p { margin: 8px 0 0; overflow-wrap: anywhere; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.category-social-preview small { overflow-wrap: anywhere; }
@media (max-width: 760px) { .category-social { padding: 16px; } .category-social-grid { grid-template-columns: 1fr; } }

/* The catalog's illustrated icons keep their own palette in both themes. */
.admin-content { min-width: 0; }
.traffic-toolbar { display: flex; justify-content: space-between; align-items: center; gap: 20px; flex-wrap: wrap; }
.traffic-toolbar h2 { margin-bottom: 6px; }
.traffic-toolbar p { margin: 0; color: var(--muted); }
.traffic-toolbar .field { min-width: 170px; margin: 0; }
.traffic-status { color: var(--muted); font-size: 14px; min-height: 24px; }
.category-visibility { min-width: 0; margin: 0; padding: 18px; border: 1px solid var(--line); border-radius: 8px; }
.category-visibility legend { padding-inline: 6px; font-weight: 600; }
.category-visibility .muted { margin: 12px 0 0; }
.category-visibility .notice { margin: 14px 0 0; }
.status.category-hidden { background: var(--primary-soft); color: var(--primary); }
:root[data-theme="dark"] .status.category-hidden { background: var(--primary-soft); color: var(--primary); }
.traffic-stats { grid-template-columns: repeat(4,minmax(0,1fr)); }
.traffic-stats strong { font-size: clamp(22px,3vw,32px); }
.traffic-table-wrap { overflow-x: auto; }
.traffic-table { width: 100%; border-collapse: collapse; text-align: left; }
.traffic-table th, .traffic-table td { padding: 13px 10px; border-bottom: 1px solid var(--line); }
.traffic-table th { font-size: 14px; color: var(--muted); }
.traffic-table td { font-size: 15px; }
.traffic-table td:first-child { min-width: 180px; }
.traffic-table small { display: block; color: var(--muted); font-size: 12px; overflow-wrap: anywhere; margin-top: 4px; }
.traffic-dashboard > .muted { font-size: 13px; line-height: 1.7; }
@media (max-width: 760px) { .traffic-stats { grid-template-columns: repeat(2,minmax(0,1fr)); } }
.site-share { grid-column: 1 / -1; min-width: 0; padding-block: 20px 0; border-top: 1px solid var(--line); }
.site-share h2 { color: #fff; font-size: 18px; margin: 0 0 16px; }
.site-share-buttons { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.site-share-buttons > a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; padding: 6px; flex: 0 0 44px;
  border: 0; border-radius: 50%; background: transparent; text-decoration: none;
}
.site-share-buttons > a:focus-visible { outline: 3px solid var(--primary); outline-offset: 3px; }
.site-share-buttons > a > .a2a_svg { border-radius: 50%; flex-shrink: 0; }
.site-share.category-share { padding: 0; margin: -4px 0 16px; border: 0; }
.home-categories .category-card { display: flex; flex-direction: column; }
.home-categories .card-top {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}
.home-categories .card-top h2 { margin: 0; padding: 0; min-width: 0; }
body .category-icon.illustrated {
  width: 64px;
  height: 64px;
  background: transparent;
  border-radius: 0;
}
.category-art {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 3px 2px #19395012);
  transition: transform .2s ease;
}
body .category-card .card-top .category-icon.illustrated { width: 76px; height: 76px; }
body .category-icon.illustrated.big { width: 96px; height: 96px; }
body .subject-card .category-icon.illustrated { width: 60px; height: 60px; }
.category-card:hover .category-art, .subject-card:hover .category-art { transform: rotate(-3deg) scale(1.04); }
@media (max-width: 640px) {
  body .category-card .card-top .category-icon.illustrated { width: 58px; height: 58px; }
  body .category-icon.illustrated.big { width: 68px; height: 68px; }
  body .subject-card .category-icon.illustrated { width: 48px; height: 48px; }
}
@media (prefers-reduced-motion: reduce) {
  .category-art { transition: none; }
  .category-card:hover .category-art, .subject-card:hover .category-art { transform: none; }
}

/* More defined component outlines; keep separators and semantic colors intact. */
:is(.category-card, .subject-card, .start-panel, .result-summary, .review-item,
    .login-card, .admin-panel, .stats-grid > div, .table-wrap, .recent-card,
    .continue-section, .year-bar, .practice-goal, .answer-feedback, .option-editor,
    .category-social, .category-social-preview, .category-visibility,
    .practice-reference-editor, .import-question, .import-instructions, .import-source,
    .math-guide, .math-preview, .image-viewer, .unsaved-dialog, .search-box,
    .field input, .field textarea, .field select, .year-bar select, .duplicate input) {
  border-width: 2px;
}
:root { --catalog-border: #b9c9e4; --catalog-border-hover: #2446a6; }
:root[data-theme="dark"] { --catalog-border: #536b91; --catalog-border-hover: #a7bfff; }
body .category-card, body .subject-card, body .start-panel, body .continue-section {
  border-width: 3px;
  border-color: var(--catalog-border);
}
body .category-card { border-top-width: 4px; border-top-color: var(--category-accent); }
body .category-card:hover { border-color: var(--category-accent); }
body .subject-card:hover { border-color: var(--catalog-border-hover); }
.answer { border-width: 4px; }

.practice-cover-image {
  display: block;
  height: auto;
  max-width: 100%;
  border: 1px solid var(--catalog-border);
  border-radius: 6px;
}
.subject-card-with-cover .practice-cover-image {
  width: clamp(80px, 20vw, 128px);
  flex: none;
}
.subject-card-with-cover > .icon { flex: none; }
.category-card .card-top .practice-cover-image {
  width: clamp(66px, 16vw, 96px);
  flex: none;
}
.practice-cover-details {
  display: grid;
  grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
  gap: clamp(16px, 3vw, 32px);
  align-items: start;
}
.practice-cover-figure { margin: 0; }
.practice-cover-figure .practice-cover-image { width: 100%; }
.practice-cover-figure figcaption { margin-top: 6px; font-size: .8125rem; }
.practice-cover-details .lead { margin-top: 0; overflow-wrap: anywhere; }
@media (max-width: 600px) {
  .practice-cover-details { grid-template-columns: minmax(0, 1fr); }
  .practice-cover-figure { width: min(100%, 160px); }
}
:root[data-theme] :is(input, select, textarea):disabled:not([type="radio"]):not([type="checkbox"]) { border-width: 2px; }