/* ============================================================
   EVALUACIÓN FORMATIVA 1 · Electricidad Aplicada a la Automatización
   Misma familia visual que el cuestionario de diodos: espacio + electricidad.
   Sin dependencias externas (sin CDN, sin fuentes web, sin iconos de librería).
   ============================================================ */

:root {
    color-scheme: dark;
    --azul-profundo: #050914;
    --azul-marino: #0a1128;
    --azul-panel: #10182f;
    --azul-electrico: #2e9dff;
    --azul-electrico-claro: #6bc2ff;
    --dorado: #f2c14e;
    --dorado-suave: #f7d97e;
    --blanco: #f4f7ff;
    --blanco-suave: #c8d2ea;
    --gris-azulado: #8b97ba;
    --correcto: #33d68f;
    --correcto-bg: rgba(51, 214, 143, 0.14);
    --incorrecto: #ff5d6c;
    --incorrecto-bg: rgba(255, 93, 108, 0.14);
    --borde-sutil: rgba(107, 194, 255, 0.2);
    --sombra: 0 20px 60px rgba(0, 0, 0, 0.45);
    --radio: 18px;
    --fuente: "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
    --estrellas: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' width='300' height='300'><circle cx='169' cy='81' r='0.9' fill='%23f2c14e' fill-opacity='0.7'/><circle cx='52' cy='191' r='1.0' fill='%23b4d2ff' fill-opacity='0.37'/><circle cx='48' cy='226' r='0.9' fill='%23b4d2ff' fill-opacity='0.55'/><circle cx='34' cy='293' r='0.6' fill='%23b4d2ff' fill-opacity='0.6'/><circle cx='35' cy='207' r='0.5' fill='%23b4d2ff' fill-opacity='0.56'/><circle cx='72' cy='152' r='0.9' fill='%23b4d2ff' fill-opacity='0.56'/><circle cx='290' cy='96' r='0.6' fill='%23b4d2ff' fill-opacity='0.35'/><circle cx='53' cy='284' r='1.1' fill='%23b4d2ff' fill-opacity='0.59'/><circle cx='258' cy='276' r='0.9' fill='%23b4d2ff' fill-opacity='0.57'/><circle cx='236' cy='189' r='0.8' fill='%23b4d2ff' fill-opacity='0.63'/><circle cx='128' cy='45' r='1.0' fill='%23b4d2ff' fill-opacity='0.73'/><circle cx='233' cy='151' r='1.0' fill='%23f2c14e' fill-opacity='0.53'/><circle cx='88' cy='179' r='0.6' fill='%23b4d2ff' fill-opacity='0.27'/><circle cx='43' cy='289' r='1.0' fill='%23b4d2ff' fill-opacity='0.42'/><circle cx='183' cy='258' r='1.0' fill='%23b4d2ff' fill-opacity='0.71'/><circle cx='142' cy='246' r='1.1' fill='%23f2c14e' fill-opacity='0.65'/><circle cx='162' cy='232' r='0.8' fill='%23b4d2ff' fill-opacity='0.62'/><circle cx='15' cy='240' r='0.8' fill='%23b4d2ff' fill-opacity='0.52'/><circle cx='115' cy='151' r='0.6' fill='%23b4d2ff' fill-opacity='0.47'/><circle cx='258' cy='45' r='0.6' fill='%23b4d2ff' fill-opacity='0.4'/><circle cx='74' cy='224' r='1.3' fill='%23b4d2ff' fill-opacity='0.48'/><circle cx='187' cy='198' r='1.4' fill='%23b4d2ff' fill-opacity='0.35'/><circle cx='122' cy='123' r='0.5' fill='%23b4d2ff' fill-opacity='0.35'/><circle cx='148' cy='6' r='0.6' fill='%23b4d2ff' fill-opacity='0.59'/><circle cx='167' cy='68' r='1.1' fill='%23b4d2ff' fill-opacity='0.59'/><circle cx='31' cy='237' r='1.3' fill='%23b4d2ff' fill-opacity='0.73'/><circle cx='290' cy='204' r='0.9' fill='%23b4d2ff' fill-opacity='0.51'/><circle cx='209' cy='35' r='0.7' fill='%23b4d2ff' fill-opacity='0.49'/><circle cx='60' cy='178' r='1.0' fill='%23f2c14e' fill-opacity='0.56'/><circle cx='278' cy='55' r='1.4' fill='%23b4d2ff' fill-opacity='0.29'/><circle cx='110' cy='196' r='0.6' fill='%23b4d2ff' fill-opacity='0.44'/><circle cx='190' cy='246' r='0.6' fill='%23b4d2ff' fill-opacity='0.8'/><circle cx='242' cy='249' r='0.9' fill='%23f2c14e' fill-opacity='0.31'/><circle cx='179' cy='139' r='0.9' fill='%23b4d2ff' fill-opacity='0.53'/></svg>");
}

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

html { -webkit-text-size-adjust: 100%; }

body {
    margin: 0;
    min-height: 100vh;
    min-height: 100dvh;
    background: radial-gradient(ellipse at 18% 8%, #0e1c40 0%, var(--azul-profundo) 55%) fixed;
    color: var(--blanco);
    font-family: var(--fuente);
    line-height: 1.5;
    -webkit-tap-highlight-color: transparent;
    overflow-x: hidden;
}

/* Fondo estrellado: un tile SVG, sin canvas ni JavaScript */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background-image: var(--estrellas);
    background-size: 300px 300px;
    opacity: 0.85;
    pointer-events: none;
    z-index: 0;
}

h1, h2, h3, h4, p { margin: 0; }
button { font: inherit; }

[hidden] { display: none !important; }

.visualmente-oculto {
    position: absolute; width: 1px; height: 1px; overflow: hidden;
    clip: rect(0 0 0 0); white-space: nowrap;
}

.saltar {
    position: absolute; left: 12px; top: -60px; z-index: 50;
    background: var(--dorado); color: #1a1200; padding: 10px 16px; border-radius: 10px;
    font-weight: 700; text-decoration: none;
}
.saltar:focus { top: 12px; }

:focus-visible { outline: 3px solid var(--azul-electrico-claro); outline-offset: 2px; }

/* ============ ESTRUCTURA ============ */
.app {
    position: relative;
    z-index: 1;
    width: 100%;
    max-width: 760px;
    margin: 0 auto;
    padding: max(16px, env(safe-area-inset-top)) max(14px, env(safe-area-inset-right)) max(40px, env(safe-area-inset-bottom)) max(14px, env(safe-area-inset-left));
}

.barra-superior {
    display: flex; align-items: center; justify-content: space-between; gap: 12px;
    margin-bottom: 14px; font-size: 0.85rem;
}
.enlace-portal {
    color: var(--azul-electrico-claro); text-decoration: none; font-weight: 600;
    padding: 10px 4px; min-height: 44px; display: inline-flex; align-items: center; gap: 6px;
}
.enlace-portal:hover { text-decoration: underline; }
.barra-superior .curso { color: var(--gris-azulado); text-align: right; }

.pantalla { animation: aparece 0.35s ease both; }
@keyframes aparece { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }

.tarjeta {
    background: linear-gradient(180deg, var(--azul-panel) 0%, var(--azul-marino) 100%);
    border: 1px solid var(--borde-sutil);
    border-radius: var(--radio);
    box-shadow: var(--sombra);
    padding: clamp(18px, 4vw, 32px);
}

h1:focus, h2:focus { outline: none; }

/* ============ BOTONES ============ */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    min-height: 52px; padding: 14px 22px;
    border: 1px solid transparent; border-radius: 12px;
    font-weight: 700; font-size: 1rem; letter-spacing: 0.01em;
    cursor: pointer; touch-action: manipulation;
    transition: transform 0.12s ease, filter 0.15s ease, background 0.15s ease;
}
.btn:active:not(:disabled) { transform: scale(0.98); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.btn-primario {
    background: linear-gradient(135deg, var(--azul-electrico), #1a6fd6);
    color: #fff; box-shadow: 0 8px 24px rgba(46, 157, 255, 0.3);
}
.btn-primario:hover:not(:disabled) { filter: brightness(1.1); }

.btn-secundario {
    background: rgba(107, 194, 255, 0.1); color: var(--azul-electrico-claro);
    border-color: rgba(107, 194, 255, 0.35);
}
.btn-secundario:hover:not(:disabled) { background: rgba(107, 194, 255, 0.18); }

.btn-terciario { background: transparent; color: var(--blanco-suave); text-decoration: underline; text-underline-offset: 3px; }
.btn-peligro { background: var(--incorrecto-bg); color: var(--incorrecto); border-color: rgba(255, 93, 108, 0.4); }
.btn-bloque { width: 100%; }

.btn-icono { min-height: 44px; min-width: 44px; padding: 0; }

/* ============ INICIO ============ */
.hero { text-align: center; }
.hero-icono {
    width: 64px; height: 64px; margin: 0 auto 16px; border-radius: 50%;
    display: grid; place-items: center; color: #1a1200;
    background: radial-gradient(circle at 35% 30%, var(--dorado-suave), var(--dorado) 60%, #b8891f 100%);
    box-shadow: 0 0 26px rgba(242, 193, 78, 0.45);
}
.hero-icono svg { width: 30px; height: 30px; }
.hero h1 { font-size: clamp(1.4rem, 5.5vw, 1.9rem); line-height: 1.2; letter-spacing: 0.01em; }
.hero .subtitulo { color: var(--azul-electrico-claro); font-weight: 600; margin: 8px 0 14px; }
.hero .descripcion { color: var(--blanco-suave); font-size: 0.95rem; max-width: 52ch; margin: 0 auto 22px; }

.datos { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-bottom: 22px; }
@media (min-width: 560px) { .datos { grid-template-columns: repeat(4, 1fr); } }
.dato {
    background: rgba(46, 157, 255, 0.07); border: 1px solid var(--borde-sutil);
    border-radius: 12px; padding: 12px 8px; display: flex; flex-direction: column; align-items: center; gap: 2px;
}
.dato b { font-size: 1.25rem; }
.dato span { font-size: 0.75rem; color: var(--gris-azulado); }

.modos { border: 0; padding: 0; margin: 0 0 22px; text-align: left; }
.modos legend { font-weight: 700; margin-bottom: 10px; color: var(--blanco); padding: 0; }
.modo-opcion {
    display: flex; gap: 12px; align-items: flex-start; padding: 14px;
    border: 1.5px solid var(--borde-sutil); border-radius: 12px; cursor: pointer;
    background: rgba(255, 255, 255, 0.02); margin-bottom: 10px;
    transition: border-color 0.15s ease, background 0.15s ease;
}
.modo-opcion input { margin-top: 4px; accent-color: var(--azul-electrico); width: 18px; height: 18px; flex-shrink: 0; }
.modo-opcion:has(input:checked) { border-color: var(--azul-electrico); background: rgba(46, 157, 255, 0.1); }
.modo-opcion:has(input:focus-visible) { outline: 3px solid var(--azul-electrico-claro); outline-offset: 2px; }
.modo-opcion strong { display: block; }
.modo-opcion span { font-size: 0.85rem; color: var(--blanco-suave); line-height: 1.4; display: block; }

.acciones { display: flex; flex-direction: column; gap: 10px; }

/* ============ EVALUACIÓN ============ */
.cab-eval { margin-bottom: 18px; }
.cab-fila { display: flex; justify-content: space-between; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.chip {
    display: inline-block; font-size: 0.75rem; font-weight: 700; padding: 5px 11px; border-radius: 20px;
    background: rgba(242, 193, 78, 0.14); color: var(--dorado); border: 1px solid rgba(242, 193, 78, 0.3);
}
.chip-suave { background: transparent; color: var(--gris-azulado); border-color: var(--borde-sutil); font-weight: 600; }
.contador { font-size: 0.85rem; color: var(--blanco-suave); font-weight: 600; font-variant-numeric: tabular-nums; }

.progreso { height: 8px; border-radius: 10px; overflow: hidden; background: rgba(255, 255, 255, 0.08); }
.progreso > div {
    height: 100%; width: 0; border-radius: 10px;
    background: linear-gradient(90deg, var(--azul-electrico), var(--dorado)); transition: width 0.4s ease;
}

.parte-etiqueta { font-size: 0.8rem; color: var(--gris-azulado); margin-bottom: 6px; }

.enunciado { font-size: clamp(1.05rem, 3.6vw, 1.2rem); line-height: 1.45; font-weight: 600; margin: 0 0 16px; }

.contexto {
    font-size: 0.9rem; color: var(--blanco-suave); line-height: 1.55;
    border-left: 3px solid var(--dorado); background: rgba(242, 193, 78, 0.07);
    padding: 10px 14px; border-radius: 0 10px 10px 0; margin: 0 0 14px;
}

.figura-pregunta { margin: 0 0 16px; text-align: center; }
.figura-pregunta button {
    display: block; width: 100%; padding: 0; border: 0; background: none; cursor: zoom-in;
}
.figura-pregunta img {
    display: block; margin: 0 auto; max-width: 100%; max-height: 320px; height: auto; width: auto;
    background: #fff; padding: 8px; border-radius: 14px; border: 1px solid var(--borde-sutil);
    object-fit: contain;
}
.figura-pregunta small { display: block; margin-top: 6px; font-size: 0.78rem; color: var(--gris-azulado); }

.alternativas { border: 0; padding: 0; margin: 0 0 16px; display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.alternativas legend { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }

.alt {
    position: relative; display: flex; align-items: flex-start; gap: 12px; min-height: 56px;
    padding: 13px 14px; border-radius: 12px; cursor: pointer;
    border: 1.5px solid var(--borde-sutil); background: rgba(255, 255, 255, 0.03);
    transition: background 0.15s ease, border-color 0.15s ease;
}
.alt input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.alt:hover { border-color: var(--azul-electrico); background: rgba(46, 157, 255, 0.08); }
.alt:has(input:focus-visible) { outline: 3px solid var(--azul-electrico-claro); outline-offset: 2px; }
.alt.sel { border-color: var(--azul-electrico); background: rgba(46, 157, 255, 0.14); }

.alt-letra {
    flex-shrink: 0; width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center;
    background: rgba(255, 255, 255, 0.07); color: var(--azul-electrico-claro); font-weight: 800; font-size: 0.85rem;
}
.alt.sel .alt-letra { background: var(--azul-electrico); color: #fff; }
.alt-texto { flex: 1; font-size: 0.97rem; padding-top: 3px; overflow-wrap: anywhere; }
.alt-icono { flex-shrink: 0; width: 22px; height: 22px; margin-top: 4px; display: none; }
.alt-icono svg { width: 100%; height: 100%; }

.alt.bloqueada { cursor: default; }
.alt.bloqueada input { cursor: default; }
.alt.bloqueada:hover { background: rgba(255, 255, 255, 0.03); border-color: var(--borde-sutil); }
.alt.correcta, .alt.correcta:hover { border-color: var(--correcto); background: var(--correcto-bg); }
.alt.correcta .alt-letra { background: var(--correcto); color: #05170f; }
.alt.correcta .alt-icono { display: block; color: var(--correcto); }
.alt.incorrecta, .alt.incorrecta:hover { border-color: var(--incorrecto); background: var(--incorrecto-bg); }
.alt.incorrecta .alt-letra { background: var(--incorrecto); color: #200608; }
.alt.incorrecta .alt-icono { display: block; color: var(--incorrecto); }
.alt.atenuada { opacity: 0.5; }

/* Retroalimentación */
.retro { border-radius: 12px; padding: 14px 16px; margin: 0 0 14px; border: 1px solid var(--borde-sutil); scroll-margin-bottom: 110px; animation: aparece 0.25s ease both; }
.retro.ok { background: var(--correcto-bg); border-color: var(--correcto); }
.retro.mal { background: var(--incorrecto-bg); border-color: var(--incorrecto); }
.retro h3 { font-size: 1rem; margin-bottom: 6px; display: flex; align-items: center; gap: 8px; }
.retro.ok h3 { color: var(--correcto); }
.retro.mal h3 { color: var(--incorrecto); }
.retro p { font-size: 0.92rem; color: var(--blanco-suave); line-height: 1.55; }
.retro p + p { margin-top: 8px; }

/* Barra de acción fija: el botón principal siempre queda al alcance del pulgar */
.barra-accion {
    position: sticky; bottom: 0; z-index: 5;
    margin: 6px calc(clamp(18px, 4vw, 32px) * -1) calc(clamp(18px, 4vw, 32px) * -1);
    padding: 12px clamp(18px, 4vw, 32px) calc(12px + env(safe-area-inset-bottom));
    background: linear-gradient(180deg, rgba(10, 17, 40, 0) 0%, rgba(10, 17, 40, 0.94) 28%);
    border-radius: 0 0 var(--radio) var(--radio);
    display: flex; align-items: center; gap: 12px;
}
.barra-accion .btn { flex: 1; }
.atajos { display: none; font-size: 0.75rem; color: var(--gris-azulado); }
@media (hover: hover) and (min-width: 700px) { .atajos { display: block; } }

/* ============ INFOGRAFÍAS ============ */
.infografia {
    margin: 0 0 16px; padding: 14px; border-radius: 14px;
    background: rgba(46, 157, 255, 0.05); border: 1px solid var(--borde-sutil);
}
.infografia figcaption { font-weight: 700; margin-bottom: 12px; font-size: 0.98rem; }
.ig-etiqueta {
    display: inline-block; margin-right: 8px; padding: 2px 9px; border-radius: 20px;
    font-size: 0.7rem; font-weight: 700; color: var(--azul-electrico-claro);
    border: 1px solid rgba(107, 194, 255, 0.4);
}
.ig-nota { margin-top: 12px; font-size: 0.85rem; color: var(--blanco-suave); border-top: 1px dashed var(--borde-sutil); padding-top: 10px; }

.ig-svg { display: block; width: 100%; height: auto; max-width: 560px; margin: 0 auto; }
.ig-svg text { fill: var(--blanco-suave); font: 500 11.5px var(--fuente); }
.ig-svg .tit { fill: var(--blanco); font-weight: 700; font-size: 12.5px; }
.ig-svg .sim { fill: var(--blanco); font-weight: 800; font-size: 17px; }
.ig-svg .ok-t { fill: var(--correcto); font-weight: 700; }
.ig-svg .fino { stroke: var(--gris-azulado); stroke-width: 1; fill: none; }
.ig-svg .guion { stroke-dasharray: 4 3; }
.ig-svg .eje { stroke: var(--gris-azulado); stroke-width: 1.5; fill: none; }
.ig-svg .linea { stroke: var(--azul-electrico-claro); stroke-width: 2.2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.ig-svg .linea.oro { stroke: var(--dorado); }
.ig-svg .linea.ok { stroke: var(--correcto); }
.ig-svg .linea.mal { stroke: var(--incorrecto); }
.ig-svg .flecha { stroke: var(--dorado); stroke-width: 2; fill: none; stroke-linecap: round; stroke-linejoin: round; }
.ig-svg .flecha.ok { stroke: var(--correcto); }
.ig-svg .panel { fill: rgba(255, 255, 255, 0.035); stroke: var(--borde-sutil); }
.ig-svg .rell-ok { fill: var(--correcto); fill-opacity: 0.2; }
.ig-svg .rell-mal { fill: var(--incorrecto); fill-opacity: 0.2; }
.ig-svg .rell-oro { fill: var(--dorado); fill-opacity: 0.16; }

.ig-tarjetas { display: grid; grid-template-columns: 1fr; gap: 8px; margin-top: 12px; }
@media (min-width: 520px) { .ig-tarjetas { grid-template-columns: 1fr 1fr; } }
.ig-mini {
    padding: 10px 12px; border-radius: 10px; border: 1px solid var(--borde-sutil);
    background: rgba(255, 255, 255, 0.03); display: flex; flex-direction: column; gap: 2px;
    border-left-width: 3px; border-left-color: var(--azul-electrico);
}
.ig-mini.ok { border-left-color: var(--correcto); }
.ig-mini.mal { border-left-color: var(--incorrecto); }
.ig-mini.oro { border-left-color: var(--dorado); }
.ig-mini strong { font-size: 0.9rem; }
.ig-mini span { font-size: 0.82rem; color: var(--blanco-suave); }

.ig-par { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.ig-diodo { padding: 10px; border-radius: 12px; border: 1px solid var(--borde-sutil); background: rgba(255, 255, 255, 0.03); }
.ig-diodo.ok { border-color: rgba(51, 214, 143, 0.45); }
.ig-diodo.mal { border-color: rgba(255, 93, 108, 0.45); }
.ig-diodo h4 { font-size: 0.9rem; margin: 4px 0 4px; }
.ig-diodo p { font-size: 0.8rem; color: var(--blanco-suave); line-height: 1.4; }
.ig-diodo .ig-svg { max-width: 190px; }

/* Electricidad vs Electrónica */
.ig-versus { display: grid; grid-template-columns: 1fr; gap: 10px; align-items: stretch; }
@media (min-width: 560px) { .ig-versus { grid-template-columns: 1fr auto 1fr; } }
.ig-lado { padding: 14px; border-radius: 12px; border: 1px solid var(--borde-sutil); background: rgba(255, 255, 255, 0.03); }
.ig-lado-a { border-top: 3px solid var(--dorado); }
.ig-lado-b { border-top: 3px solid var(--azul-electrico); }
.ig-lado h4 { font-size: 1rem; margin-bottom: 6px; }
.ig-def { font-size: 0.9rem; color: var(--blanco-suave); margin-bottom: 8px; }
.ig-def strong { color: var(--blanco); }
.ig-lado ul { margin: 0; padding-left: 18px; font-size: 0.85rem; color: var(--blanco-suave); }
.ig-vs { align-self: center; justify-self: center; font-weight: 800; color: var(--gris-azulado); }

/* Línea de tiempo */
.ig-tiempo { list-style: none; margin: 0; padding: 0; position: relative; }
.ig-tiempo::before { content: ""; position: absolute; left: 51px; top: 8px; bottom: 8px; width: 2px; background: var(--borde-sutil); }
.ig-tiempo li { display: flex; gap: 16px; padding: 8px 0; position: relative; }
.ig-tiempo li::before {
    content: ""; position: absolute; left: 46px; top: 16px; width: 12px; height: 12px; border-radius: 50%;
    background: var(--azul-marino); border: 2px solid var(--azul-electrico-claro);
}
.ig-tiempo li.clave::before { background: var(--dorado); border-color: var(--dorado); box-shadow: 0 0 12px rgba(242, 193, 78, 0.6); }
.ig-anio { flex: 0 0 42px; width: 42px; font-weight: 800; font-size: 0.8rem; color: var(--azul-electrico-claro); padding-top: 3px; font-variant-numeric: tabular-nums; }
.ig-tiempo li > div { padding-left: 18px; }
.ig-tiempo li.clave .ig-anio { color: var(--dorado); }
.ig-tiempo strong { font-size: 0.95rem; }
.ig-tiempo p { font-size: 0.85rem; color: var(--blanco-suave); margin-top: 2px; }

/* Fuentes */
.ig-flujo { padding: 12px; border-radius: 12px; border: 1px solid var(--borde-sutil); background: rgba(255, 255, 255, 0.03); margin-bottom: 10px; }
.ig-flujo.lineal { border-top: 3px solid var(--incorrecto); }
.ig-flujo.conmutada { border-top: 3px solid var(--correcto); }
.ig-flujo h4 { font-size: 0.95rem; margin-bottom: 10px; }
.ig-flujo > p { font-size: 0.85rem; color: var(--blanco-suave); margin-top: 10px; }
.ig-bloques { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr; gap: 6px; counter-reset: b; }
@media (min-width: 560px) { .ig-bloques { grid-template-columns: repeat(4, 1fr); gap: 16px; } }
.ig-bloques li {
    position: relative; text-align: center; font-size: 0.82rem; font-weight: 600; padding: 9px 6px; border-radius: 8px;
    background: rgba(46, 157, 255, 0.1); border: 1px solid var(--borde-sutil);
    display: grid; place-items: center; min-height: 44px;
}
.ig-bloques li.clave { background: rgba(242, 193, 78, 0.16); border-color: rgba(242, 193, 78, 0.55); color: var(--dorado-suave); }
.ig-bloques li:not(:last-child)::after { content: "↓"; position: absolute; bottom: -14px; left: 50%; transform: translateX(-50%); font-size: 0.8rem; color: var(--gris-azulado); line-height: 1; }
@media (min-width: 560px) {
    .ig-bloques li:not(:last-child)::after { content: "→"; bottom: auto; left: auto; right: -14px; top: 50%; transform: translateY(-50%); }
}

/* Pasos y cálculos */
.ig-pasos { list-style: none; margin: 0; padding: 0; counter-reset: paso; display: flex; flex-direction: column; gap: 8px; }
.ig-pasos li {
    counter-increment: paso; display: grid; grid-template-columns: 30px 1fr; column-gap: 12px; row-gap: 2px;
    padding: 10px 12px; border-radius: 10px; background: rgba(255, 255, 255, 0.03); border: 1px solid var(--borde-sutil);
}
.ig-pasos li::before {
    content: counter(paso); grid-row: 1 / span 2; width: 28px; height: 28px; border-radius: 50%;
    display: grid; place-items: center; font-weight: 800; font-size: 0.82rem;
    background: rgba(46, 157, 255, 0.18); color: var(--azul-electrico-claro);
}
.ig-pasos strong { font-size: 0.9rem; }
.ig-pasos span { font-size: 0.85rem; color: var(--blanco-suave); }
.ig-formula { font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.ig-formula b { color: var(--dorado-suave); }
.ig-extra { margin-top: 10px; font-size: 0.85rem; color: var(--blanco-suave); padding: 10px 12px; border-radius: 10px; background: rgba(242, 193, 78, 0.07); border-left: 3px solid var(--dorado); }

/* ============ RESULTADOS ============ */
.centro { text-align: center; }
.resultados h1 { font-size: 1.3rem; margin-bottom: 20px; }
.nota-panel {
    display: grid; grid-template-columns: 1fr; gap: 16px; justify-items: center; align-items: center;
    padding: 22px 16px; border-radius: 16px; border: 1px solid var(--borde-sutil); margin-bottom: 18px;
    background: radial-gradient(circle at 50% 0%, rgba(46, 157, 255, 0.14), transparent 70%);
}
@media (min-width: 520px) { .nota-panel { grid-template-columns: 1fr 1fr; } }
.nota-etq { font-size: 0.8rem; color: var(--gris-azulado); display: block; }
.nota-valor { font-size: clamp(3rem, 14vw, 3.8rem); font-weight: 800; color: var(--dorado); line-height: 1.05; text-shadow: 0 0 30px rgba(242, 193, 78, 0.4); font-variant-numeric: tabular-nums; }
.nota-escala { color: var(--gris-azulado); font-size: 1.1rem; margin-left: 4px; }
.anillo { width: 132px; height: 132px; position: relative; }
.anillo svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.anillo circle { fill: none; stroke-width: 10; }
.anillo .pista { stroke: rgba(255, 255, 255, 0.08); }
.anillo .valor { stroke: var(--azul-electrico-claro); stroke-linecap: round; transition: stroke-dashoffset 0.9s ease; }
.anillo .valor.aprobado { stroke: var(--correcto); }
.anillo-texto { position: absolute; inset: 0; display: grid; place-content: center; text-align: center; }
.anillo-texto b { font-size: 1.6rem; line-height: 1; }
.anillo-texto span { font-size: 0.7rem; color: var(--gris-azulado); }

.tres { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 18px; }
.tres > div { padding: 12px 6px; border-radius: 12px; border: 1px solid var(--borde-sutil); background: rgba(255, 255, 255, 0.03); display: flex; flex-direction: column; align-items: center; }
.tres b { font-size: 1.4rem; }
.tres span { font-size: 0.75rem; color: var(--gris-azulado); }
.tres .ok b { color: var(--correcto); }
.tres .mal b { color: var(--incorrecto); }

.mensaje { color: var(--blanco-suave); font-size: 0.95rem; margin-bottom: 20px; }

.temas { text-align: left; margin-bottom: 22px; padding: 16px; border-radius: 14px; border: 1px solid var(--borde-sutil); background: rgba(255, 255, 255, 0.02); }
.temas h2 { font-size: 1rem; margin-bottom: 4px; }
.temas > p { font-size: 0.82rem; color: var(--gris-azulado); margin-bottom: 14px; }
.tema-fila { margin-bottom: 12px; }
.tema-fila:last-child { margin-bottom: 0; }
.tema-cab { display: flex; justify-content: space-between; gap: 10px; font-size: 0.88rem; margin-bottom: 5px; }
.tema-cab b { font-variant-numeric: tabular-nums; white-space: nowrap; }
.tema-barra { height: 10px; border-radius: 10px; background: rgba(255, 255, 255, 0.08); overflow: hidden; }
.tema-barra > div { height: 100%; border-radius: 10px; background: var(--correcto); transition: width 0.7s ease; }
.tema-barra > div.medio { background: var(--dorado); }
.tema-barra > div.bajo { background: var(--incorrecto); }

/* ============ REVISIÓN / HISTORIAL / GUÍA ============ */
.cab-simple { display: flex; align-items: center; gap: 12px; margin-bottom: 18px; }
.cab-simple h1 { font-size: 1.15rem; flex: 1; line-height: 1.25; }
.filtro { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; font-size: 0.9rem; min-height: 44px; cursor: pointer; }
.filtro input { width: 20px; height: 20px; accent-color: var(--azul-electrico); }

.lista { display: flex; flex-direction: column; gap: 14px; }
.item { border: 1px solid var(--borde-sutil); border-radius: 14px; padding: 16px; background: rgba(255, 255, 255, 0.02); }
.item-cab { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; margin-bottom: 10px; }
.item-num { font-size: 0.78rem; color: var(--gris-azulado); font-weight: 700; }
.estado { font-size: 0.75rem; font-weight: 800; padding: 3px 10px; border-radius: 20px; flex-shrink: 0; }
.estado.ok { background: var(--correcto-bg); color: var(--correcto); }
.estado.mal { background: var(--incorrecto-bg); color: var(--incorrecto); }
.item-preg { font-weight: 600; font-size: 0.97rem; line-height: 1.4; margin-bottom: 10px; }
.item-img { max-width: 100%; max-height: 180px; background: #fff; padding: 4px; border-radius: 10px; display: block; margin-bottom: 10px; }
.resp-linea { font-size: 0.87rem; padding: 9px 11px; border-radius: 8px; margin-bottom: 8px; line-height: 1.4; }
.resp-linea b { display: block; font-size: 0.75rem; opacity: 0.85; margin-bottom: 2px; }
.resp-linea.ok { background: var(--correcto-bg); color: #b5f5d8; }
.resp-linea.mal { background: var(--incorrecto-bg); color: #ffc0c6; }
.item-expl { font-size: 0.85rem; color: var(--blanco-suave); border-left: 3px solid var(--azul-electrico); padding: 9px 12px; background: rgba(255, 255, 255, 0.03); border-radius: 0 8px 8px 0; }
.item details { margin-top: 12px; }
.item summary { cursor: pointer; min-height: 44px; display: flex; align-items: center; font-weight: 700; color: var(--azul-electrico-claro); font-size: 0.9rem; }
.item details .infografia { margin-top: 8px; margin-bottom: 0; }

.hist-item { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 14px 16px; border: 1px solid var(--borde-sutil); border-radius: 14px; background: rgba(255, 255, 255, 0.02); }
.hist-fecha { display: block; font-size: 0.78rem; color: var(--gris-azulado); margin-bottom: 3px; }
.hist-detalle { font-size: 0.85rem; color: var(--blanco-suave); }
.hist-nota { font-size: 1.5rem; font-weight: 800; color: var(--dorado); text-align: right; font-variant-numeric: tabular-nums; line-height: 1.1; }
.hist-nota small { display: block; font-size: 0.7rem; font-weight: 500; color: var(--gris-vacio, var(--gris-azulado)); }
.vacio { text-align: center; color: var(--gris-azulado); padding: 30px 10px; }

.guia-intro { color: var(--blanco-suave); font-size: 0.92rem; margin-bottom: 16px; }
.guia .infografia { background: rgba(255, 255, 255, 0.02); }

/* ============ VISOR DE IMÁGENES (<dialog>) ============ */
dialog.visor { border: 0; padding: 0; background: transparent; max-width: 100vw; max-height: 100vh; width: 100%; height: 100%; margin: 0; }
dialog.visor::backdrop { background: rgba(3, 6, 16, 0.93); }
.visor-contenido { width: 100%; height: 100%; display: grid; place-items: center; padding: 16px; overflow: auto; }
.visor-contenido img { max-width: 100%; max-height: 92vh; background: #fff; padding: 8px; border-radius: 12px; }
.visor .cerrar { position: fixed; top: max(14px, env(safe-area-inset-top)); right: 14px; z-index: 2; background: rgba(255, 255, 255, 0.14); color: #fff; border-color: rgba(255, 255, 255, 0.35); border-radius: 50%; }

/* ============ MOVIMIENTO REDUCIDO ============ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* Impresión: sin fondo, para poder imprimir la revisión */
@media print {
    body { background: #fff; color: #000; }
    body::before, .barra-superior, .barra-accion, .btn { display: none !important; }
    .tarjeta { box-shadow: none; border: 1px solid #999; background: #fff; }
    .item, .infografia { break-inside: avoid; }
}