/* Guía «IA para hacer apuntes»: capa interactiva sobre guia.css, sin scripts.
   Comparador con radios, errores con <details>, test con casillas y un contador de CSS,
   y animaciones que se apagan con prefers-reduced-motion. */

body.guia-apuntes header.top,
body.guia-apuntes main,
body.guia-apuntes footer.bottom { width: min(980px, 100% - 2 * var(--ap-gutter)); }
body.guia-apuntes article > :not(.g-hero) { max-width: 760px; }
body.guia-apuntes h2 { scroll-margin-top: var(--ap-space-5); }
body.guia-apuntes h3 { margin: 0 0 var(--ap-space-1); font-family: var(--ap-font-display); font-size: var(--ap-text-subtitle); font-weight: 700; letter-spacing: -0.01em; color: var(--ap-ink); }
.g-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

/* ---------- Portada ---------- */
.g-hero { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: var(--ap-space-6); align-items: center; margin-bottom: var(--ap-space-5); }
.g-hero h1 { font-size: clamp(30px, 4.4vw, 46px); }
.g-jump { display: flex; flex-wrap: wrap; gap: var(--ap-space-2); margin-top: var(--ap-space-4); }
.g-jump a { padding: 6px 14px; border-radius: var(--ap-radius-pill); border: 1px solid var(--ap-line-strong); color: var(--ap-ink); font-size: var(--ap-text-ui); font-weight: 600; text-decoration: none; background: var(--ap-glass-1); transition: background var(--ap-dur-base) var(--ap-ease), border-color var(--ap-dur-base) var(--ap-ease); }
.g-jump a:hover { border-color: var(--ap-accent); background: var(--ap-accent-tint); color: var(--ap-ink); }

.g-flow { position: relative; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: var(--ap-space-3); min-height: 280px; }
.g-in { display: grid; gap: var(--ap-space-3); }
.g-card { display: grid; gap: 8px; padding: 12px 14px; border-radius: var(--ap-radius-md); border: 1px solid var(--ap-glass-edge); background: var(--ap-glass-3); box-shadow: inset 0 1px 0 var(--ap-reflection, transparent), var(--ap-shadow-2); }
.g-card-label { font-size: 11px; font-weight: 700; letter-spacing: 0.04em; color: var(--ap-ink-2); white-space: nowrap; }
.g-wave { display: flex; align-items: center; gap: 3px; height: 28px; }
.g-wave i { flex: 1; min-width: 3px; height: 30%; border-radius: 2px; background: var(--ap-brand); animation: g-wave 1.1s var(--ap-ease) infinite alternate; }
.g-wave i:nth-child(3n) { animation-delay: -0.3s; }
.g-wave i:nth-child(3n+1) { animation-delay: -0.6s; }
.g-wave i:nth-child(4n) { animation-delay: -0.85s; }
@keyframes g-wave { to { height: 100%; } }
.g-slide-ring { width: 54px; height: 54px; margin: 2px auto; border-radius: 50%; border: 3px dashed var(--ap-lav); animation: g-spin 9s linear infinite; }
@keyframes g-spin { to { transform: rotate(360deg); } }
.g-bloop { width: 92px; height: auto; filter: drop-shadow(0 10px 18px rgba(90, 40, 60, 0.18)); animation: g-bob 3.2s var(--ap-ease) infinite alternate; }
@keyframes g-bob { to { transform: translateY(-8px); } }
.g-out { align-content: start; min-height: 170px; }
.g-line { height: 7px; border-radius: 4px; background: var(--ap-line-strong); transform-origin: left; animation: g-write 4.8s var(--ap-ease) infinite; }
.g-line-h { width: 60%; height: 10px; background: var(--ap-ink-2); }
.g-line-short { width: 55%; }
.g-line-mark { background: color-mix(in srgb, var(--ap-brand) 55%, transparent); }
.g-line:nth-of-type(2) { animation-delay: 0.3s; }
.g-line:nth-of-type(3) { animation-delay: 0.6s; }
.g-line:nth-of-type(4) { animation-delay: 0.9s; }
.g-line:nth-of-type(5) { animation-delay: 1.2s; }
.g-line:nth-of-type(6) { animation-delay: 1.5s; }
@keyframes g-write { 0% { transform: scaleX(0); } 30%, 85% { transform: scaleX(1); } 100% { transform: scaleX(1); opacity: 0; } }

/* ---------- Qué necesitas ---------- */
.g-needs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--ap-space-3); }
.g-need { padding: var(--ap-space-4); border-radius: var(--ap-radius-lg); border: 1px solid var(--ap-line); background: var(--ap-glass-1); }
.g-need p { margin: 0; font-size: 16px; }
.g-need-icon { display: grid; place-items: center; width: 40px; height: 40px; margin-bottom: var(--ap-space-3); border-radius: 12px; color: var(--ap-accent-deep); background: var(--ap-accent-tint); }
.g-need-icon svg { width: 22px; height: 22px; }

/* ---------- Comparador ---------- */
.g-compare { position: relative; margin-top: var(--ap-space-3); border-radius: var(--ap-radius-lg); border: 1px solid var(--ap-glass-edge); background: var(--ap-glass-2); box-shadow: var(--ap-shadow-2); overflow: hidden; }
.g-tab-input { position: absolute; opacity: 0; pointer-events: none; }
.g-tabs { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--ap-line); }
.g-tabs label { padding: 14px var(--ap-space-4); text-align: center; font-size: var(--ap-text-ui); font-weight: 700; color: var(--ap-ink-2); cursor: pointer; border-bottom: 3px solid transparent; transition: color var(--ap-dur-base) var(--ap-ease), border-color var(--ap-dur-base) var(--ap-ease), background var(--ap-dur-base) var(--ap-ease); }
.g-tabs label:hover { color: var(--ap-ink); background: var(--ap-accent-tint); }
#cmp-chat:checked ~ .g-tabs label[for="cmp-chat"],
#cmp-bloopy:checked ~ .g-tabs label[for="cmp-bloopy"] { color: var(--ap-ink); border-bottom-color: var(--ap-brand); }
#cmp-chat:focus-visible ~ .g-tabs label[for="cmp-chat"],
#cmp-bloopy:focus-visible ~ .g-tabs label[for="cmp-bloopy"] { outline: 2px solid var(--ap-accent); outline-offset: -4px; }
.g-panel { display: none; padding: var(--ap-space-5); }
#cmp-chat:checked ~ .g-panel-chat,
#cmp-bloopy:checked ~ .g-panel-bloopy { display: block; animation: g-fade var(--ap-dur-slow) var(--ap-ease); }
@keyframes g-fade { from { opacity: 0; transform: translateY(6px); } }
.g-panel-meta { margin: 0 0 var(--ap-space-3); font-size: var(--ap-text-label); font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ap-ink-2); }
.g-panel p, .g-panel li, .g-p { font-size: 16px; }
.g-p { margin: 0 0 var(--ap-space-3); line-height: 1.65; color: var(--ap-ink-2); }
.g-invented { padding: 0 3px; border-radius: 4px; background: color-mix(in srgb, var(--ap-warning) 18%, transparent); text-decoration: underline wavy var(--ap-warning); text-underline-offset: 3px; }
.g-verdict { margin: var(--ap-space-4) 0 0; padding: var(--ap-space-3) var(--ap-space-4); border-radius: var(--ap-radius-sm); border-left: 3px solid; }
.g-verdict-bad { border-color: var(--ap-warning); background: color-mix(in srgb, var(--ap-warning) 9%, transparent); }
.g-verdict-good { border-color: var(--ap-success); background: color-mix(in srgb, var(--ap-success) 9%, transparent); }

/* inline-block: el hueco interno de <details> es de bloque y, si no, parte la línea al abrirlo. */
.g-doubt { display: inline-block; position: relative; }
.g-doubt summary { display: inline; list-style: none; cursor: pointer; }
.g-doubt summary::-webkit-details-marker { display: none; }
.g-doubt mark { padding: 0 2px; border-radius: 3px; color: var(--ap-ink); background: color-mix(in srgb, var(--ap-brand) 22%, transparent); text-decoration: underline 2px var(--ap-brand); text-underline-offset: 3px; animation: g-pulse 2.4s var(--ap-ease) infinite; }
.g-doubt[open] mark { animation: none; background: color-mix(in srgb, var(--ap-brand) 36%, transparent); }
@keyframes g-pulse { 50% { background: color-mix(in srgb, var(--ap-brand) 40%, transparent); } }
.g-doubt-pop { position: absolute; left: 0; top: calc(100% + 8px); z-index: 2; width: max-content; max-width: min(280px, 80vw); padding: 10px 12px; border-radius: var(--ap-radius-sm); border: 1px solid var(--ap-glass-edge); background: var(--ap-glass-3); box-shadow: var(--ap-shadow-3); font-size: var(--ap-text-ui); line-height: 1.4; color: var(--ap-ink-2); animation: g-fade var(--ap-dur-base) var(--ap-ease); }
.g-doubt-pop b { color: var(--ap-accent-deep); }

/* ---------- Pasos ---------- */
.g-steps { --g-step: 44px; position: relative; list-style: none; margin: var(--ap-space-4) 0 0; padding: 0; counter-reset: g-step; }
.g-steps::before { content: ""; position: absolute; left: calc(var(--g-step) / 2 - 1px); top: 8px; bottom: 8px; width: 2px; background: var(--ap-line); }
.g-steps li { position: relative; padding: 0 0 var(--ap-space-5) calc(var(--g-step) + var(--ap-space-4)); counter-increment: g-step; }
.g-steps li::before { content: counter(g-step); position: absolute; left: 0; top: -4px; display: grid; place-items: center; width: var(--g-step); height: var(--g-step); border-radius: 50%; font-family: var(--ap-font-display); font-size: 18px; font-weight: 800; color: var(--ap-on-brand); background: var(--ap-brand); box-shadow: 0 8px 18px -8px var(--ap-brand-glow); }
.g-steps li p { margin: 0; }
@supports (animation-timeline: view()) {
  .g-steps li { animation: g-rise linear both; animation-timeline: view(); animation-range: entry 0% entry 70%; }
  .g-steps li::before { animation: g-pop linear both; animation-timeline: view(); animation-range: entry 20% entry 80%; }
}
@keyframes g-rise { from { opacity: 0; transform: translateX(-14px); } }
@keyframes g-pop { from { transform: scale(0.4); } }

/* ---------- Errores ---------- */
.g-errors { display: grid; gap: var(--ap-space-3); }
.g-error { border-radius: var(--ap-radius-md); border: 1px solid var(--ap-line); background: var(--ap-glass-1); transition: border-color var(--ap-dur-base) var(--ap-ease), background var(--ap-dur-base) var(--ap-ease); }
.g-error[open] { border-color: color-mix(in srgb, var(--ap-success) 50%, transparent); background: var(--ap-glass-2); }
.g-error summary { display: flex; align-items: center; gap: var(--ap-space-3); padding: var(--ap-space-4); list-style: none; cursor: pointer; font-weight: 700; color: var(--ap-ink); }
.g-error summary::-webkit-details-marker { display: none; }
.g-error summary::after { content: "+"; margin-left: auto; font-size: 22px; line-height: 1; color: var(--ap-accent-deep); transition: transform var(--ap-dur-base) var(--ap-ease-spring); }
.g-error[open] summary::after { transform: rotate(45deg); }
.g-error-tag { flex: none; padding: 2px 8px; border-radius: var(--ap-radius-pill); font-size: 11px; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ap-warning); background: color-mix(in srgb, var(--ap-warning) 14%, transparent); }
.g-error p { margin: 0; padding: 0 var(--ap-space-4) var(--ap-space-4); animation: g-fade var(--ap-dur-slow) var(--ap-ease); }

/* ---------- Test ---------- */
.g-test { display: grid; gap: var(--ap-space-2); margin: var(--ap-space-3) 0 0; padding: var(--ap-space-4); border-radius: var(--ap-radius-lg); border: 1px solid var(--ap-glass-edge); background: var(--ap-glass-2); box-shadow: var(--ap-shadow-1); counter-reset: g-ok; }
.g-test label { display: flex; align-items: flex-start; gap: var(--ap-space-3); padding: 10px 12px; border-radius: var(--ap-radius-sm); cursor: pointer; font-size: 16px; line-height: 1.5; color: var(--ap-ink-2); transition: background var(--ap-dur-base) var(--ap-ease); }
.g-test label:hover { background: var(--ap-accent-tint); }
.g-test input { flex: none; width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--ap-brand); }
.g-test input:checked { counter-increment: g-ok; }
.g-test label:has(input:checked) span { color: var(--ap-ink); }
.g-score { margin: var(--ap-space-2) 0 0; font-family: var(--ap-font-display); font-size: 28px; font-weight: 800; color: var(--ap-ink); }
.g-score-num::before { content: counter(g-ok); color: var(--ap-accent-deep); }
.g-result { display: none; margin: 0; font-weight: 600; color: var(--ap-ink); }
.g-test:has(input:checked) .g-result-low { display: block; }
.g-test:not(:has(input:not(:checked))) .g-result-low { display: none; }
.g-test:not(:has(input:not(:checked))) .g-result-full { display: block; color: var(--ap-success); animation: g-fade var(--ap-dur-slow) var(--ap-ease); }

/* ---------- Bloopy + cierre ---------- */
.g-bloopy { display: grid; grid-template-columns: minmax(0, 1fr) 150px; gap: var(--ap-space-4); align-items: center; }
.g-bloopy img { width: 100%; height: auto; }
.g-more { margin-top: var(--ap-space-5); }

@media (max-width: 760px) {
  .g-hero { grid-template-columns: 1fr; gap: var(--ap-space-4); }
  .g-flow { min-height: 0; }
  .g-bloop { width: 72px; }
  .g-needs { grid-template-columns: 1fr; }
  .g-tabs label { padding: 12px var(--ap-space-2); font-size: 13px; }
  .g-panel { padding: var(--ap-space-4); }
  .g-bloopy { grid-template-columns: 1fr; }
  .g-bloopy img { width: 130px; justify-self: center; }
}
@media (max-width: 420px) {
  /* En el móvil la escena cabe en una fila: audio → Bloop → apuntes. */
  .g-slide { display: none; }
  .g-flow { gap: var(--ap-space-2); }
  .g-card { padding: 10px; }
  .g-card-label { font-size: 10px; }
  .g-out { min-height: 0; }
  .g-bloop { width: 56px; }
}

@media (prefers-reduced-motion: reduce) {
  .g-wave i, .g-slide-ring, .g-bloop, .g-line, .g-doubt mark, .g-panel, .g-error p, .g-doubt-pop, .g-steps li, .g-steps li::before, .g-result-full { animation: none !important; }
  .g-wave i { height: 60%; }
  .g-jump a, .g-tabs label, .g-error, .g-error summary::after, .g-test label { transition: none; }
}