/* Comprueba tu botella */
.test-cuerpo { display: grid; gap: 2.5rem; margin-top: clamp(2.5rem, 6vw, 4.5rem); }
.test-figura { background: var(--surface); display: grid; place-items: center; padding: 2rem; aspect-ratio: 4 / 3; }
.test-figura:has(picture) { padding: 0; display: block; overflow: clip; }
.test-figura picture { width: 100%; height: 100%; }
.test-figura picture img { filter: grayscale(1) contrast(1.05); }
.test-figura .botella { height: 100%; width: auto; max-height: 30rem; }
.test { display: grid; gap: 2rem; }
.test-preguntas { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.test-pregunta fieldset { margin: 0; border: 0; padding: 1.25rem; background: var(--surface); display: grid; gap: .9rem; }
.test-pregunta:nth-child(even) fieldset { background: var(--surface-2); }
.test-pregunta legend { padding: 0; float: left; width: 100%; display: grid; gap: .25rem; }
.test-pregunta legend + * { clear: both; }
.test-texto { font-weight: 700; font-size: var(--step-lead); line-height: 1.25; letter-spacing: -0.01em; }
.test-ayuda { font-size: var(--step-body); }
.test-opciones { display: none; gap: 6px; }
.test-opciones label { position: relative; flex: 1 1 0; max-width: 9rem; }
.test-opciones input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.test-opciones span { display: flex; align-items: center; justify-content: center; min-height: 3rem; background: var(--bg); font-weight: 600; transition: background-color var(--t-ui) ease, color var(--t-ui) ease, transform var(--t-press) var(--ease-out); }
.test-opciones label:active span { transform: scale(0.97); }
.test-opciones input:checked + span { background: var(--ink); color: var(--bg); }
.test-opciones input:focus-visible + span { outline: 3px solid var(--accent); outline-offset: 2px; }
.test-porque { font-size: var(--step-body); max-width: 60ch; }
.test-porque a { color: var(--accent); font-weight: 600; }
.test-pie { display: none; align-items: center; gap: 1.25rem; flex-wrap: wrap; }
.test-aviso { font-weight: 600; }

/* con JavaScript: se contesta y la explicación aparece solo en las que fallan */
.test-activo .test-opciones { display: flex; }
.test-activo .test-pie { display: flex; }
.test-activo .test-porque { display: none; }
.test-activo.test-resuelto .test-falla .test-porque { display: block; }
.test-resultado { display: grid; gap: 1.25rem; padding: clamp(1.5rem, 4vw, 2.5rem); background: var(--field-2); scroll-margin: 2rem; }
.test-resultado:focus { outline: none; }
.test-sello { display: grid; gap: 1.5rem; align-items: center; }
.test-sello[hidden] { display: none; }
.test-sello .sello { width: min(13rem, 60vw); }
.test-sello-titulo { font-size: var(--step-head); }
.test-sello-texto p { font-size: var(--step-lead); line-height: 1.3; max-width: 32ch; margin-top: .75rem; }
.test-nota { font-size: var(--step-small); }
.test-otra { justify-self: start; min-height: 2.75rem; color: var(--ink); }
.test-sigue { padding-top: var(--section); display: grid; gap: 1.5rem; }
.test-sigue-lista { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.test-sigue-lista a { display: grid; background: var(--surface); text-decoration: none; font-weight: 700; font-size: var(--step-lead); line-height: 1.15; }
.test-sigue-lista a > span:last-child { padding: .9rem 1rem 1.1rem; }
.test-sigue-foto { display: block; aspect-ratio: 4 / 3; overflow: clip; }
.test-sigue-foto img { filter: grayscale(1) contrast(1.05); transition: transform 700ms var(--ease-soft); }
@media (hover: hover) and (pointer: fine) { .test-sigue-lista a:hover img { transform: scale(1.04); } .test-sigue-lista a:hover > span:last-child { text-decoration: underline; } }
.test-mas { max-width: 60ch; }
.test-mas a { color: var(--accent); font-weight: 600; }

.sello { font-family: var(--font); overflow: visible; }
.sello-fondo { fill: var(--bg); }
.sello-aro { stroke: currentColor; }
.sello-arco { font-size: 17px; font-weight: 600; fill: currentColor; }
.sello-centro { font-size: 50px; font-weight: 700; letter-spacing: -2px; fill: currentColor; }
.sello-linea { font-size: 19px; font-weight: 600; fill: currentColor; }
.sello-muy { color: var(--accent); }
.sello-pinta { color: var(--ink); }
.sello-ojo { color: var(--ink); }
.sello-ojo .sello-fondo { fill: var(--field-2); }
.sello-ojo .sello-linea { font-size: 15px; }

@media (prefers-reduced-motion: no-preference) {
  .estampa .sello { animation: estampar 520ms var(--ease-out) both; }
}
@keyframes estampar {
  0% { opacity: 0; transform: scale(1.35) rotate(-8deg); }
  60% { opacity: 1; transform: scale(.96) rotate(-3deg); }
  100% { opacity: 1; transform: scale(1) rotate(-4deg); }
}

@media (min-width: 48em) {
  .test-sello { grid-template-columns: auto 1fr; }
}
@media (min-width: 60em) {
  .test-cuerpo { grid-template-columns: 42fr 58fr; gap: 0; align-items: start; }
  .test-figura { position: sticky; top: 1.5rem; margin-right: 2.5rem; aspect-ratio: 4 / 5; }
  .test-sigue-lista { grid-template-columns: repeat(4, 1fr); }
}