/* =========================================================================
   Pixaweb · sistemas.pixaweb.cl
   Dirección: «del aula al certificado». Estética de documento oficial
   (papel, folio, sello, QR) con el verde institucional y la teja de
   Pixaweb. Tipografía de la familia Pixaweb: Fraunces + Plus Jakarta.
   ========================================================================= */

@font-face { font-family: "Fraunces"; font-style: normal; font-weight: 400 800; font-display: swap;
    src: url("../fonts/fraunces-latin.woff2") format("woff2");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Fraunces"; font-style: normal; font-weight: 400 800; font-display: swap;
    src: url("../fonts/fraunces-latin-ext.woff2") format("woff2");
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1E00-1E9F, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Jakarta"; font-style: normal; font-weight: 400 800; font-display: swap;
    src: url("../fonts/jakarta-latin.woff2") format("woff2");
    unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Jakarta"; font-style: normal; font-weight: 400 800; font-display: swap;
    src: url("../fonts/jakarta-latin-ext.woff2") format("woff2");
    unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+1E00-1E9F, U+2020, U+20A0-20AB, U+20AD-20C4, U+2113, U+2C60-2C7F, U+A720-A7FF; }

:root {
    --papel: #f4f3ef;
    --papel-2: #eae8e2;
    --papel-3: #dedbd3;
    --blanco: #fffdf8;
    --tinta: #17191f;
    --tinta-2: #40444d;
    --gris: #62666e;
    --linea: #d8d5cd;
    --verde: #2d5b8a;
    --verde-osc: #1f4366;
    --verde-noche: #14171d;
    --verde-claro: #6f9cc7;
    --teja: #d24a17;
    --teja-osc: #b03c10;
    --oro: #f2b705;
    --error: #b42318;

    --display: "Fraunces", Georgia, "Times New Roman", serif;
    --texto: "Jakarta", system-ui, -apple-system, "Segoe UI", sans-serif;
    --mono: ui-monospace, "SFMono-Regular", "Cascadia Mono", Consolas, monospace;

    --ancho: 1200px;
    --borde: 1px solid var(--linea);
    --r: 10px;
    --r-chico: 6px;
    --ease: cubic-bezier(.2, .7, .1, 1);
    --sombra: 0 1px 2px rgba(19, 32, 29, .06), 0 12px 32px -12px rgba(19, 32, 29, .22);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
    margin: 0;
    background: var(--papel);
    color: var(--tinta);
    font-family: var(--texto);
    font-size: 1.0625rem;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
section[id] { scroll-margin-top: 76px; }
a { color: inherit; }
h1, h2, h3 { margin: 0; font-family: var(--display); font-weight: 700; letter-spacing: -.02em; line-height: 1.08; text-wrap: balance; }
p { margin: 0; }
p, li, dd { text-wrap: pretty; }

:focus-visible { outline: 3px solid var(--oro); outline-offset: 3px; border-radius: 4px; }

.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.saltar { position: absolute; left: 1rem; top: -4rem; z-index: 100; background: var(--tinta); color: var(--blanco); padding: .6rem 1rem; border-radius: var(--r-chico); }
.saltar:focus { top: 1rem; }

.contenedor { width: min(100% - 2.5rem, var(--ancho)); margin-inline: auto; }

/* ---------------------------------------------------------------- Botones */

.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
    padding: .7rem 1.2rem;
    border-radius: 999px;
    border: 1.5px solid transparent;
    font: 700 .95rem/1.2 var(--texto);
    text-decoration: none;
    cursor: pointer;
    transition: transform .2s var(--ease), background-color .2s, color .2s, border-color .2s, box-shadow .2s;
}
.btn:active { transform: translateY(1px); }
.btn-grande { padding: .9rem 1.3rem; font-size: 1rem; }
.btn-sello { background: var(--teja); color: #fff; box-shadow: 0 8px 20px -10px rgba(210, 74, 23, .8); }
.btn-sello:hover { background: var(--teja-osc); transform: translateY(-2px); }
.btn-sello svg { transition: transform .2s var(--ease); }
.btn-sello:hover svg { transform: translateX(3px); }
.btn-linea { border-color: var(--tinta); color: var(--tinta); background: transparent; }
.btn-linea:hover { background: var(--tinta); color: var(--papel); }

/* ------------------------------------------------------------------ Folio
   El rótulo de cada sección imita el folio de un documento oficial. */

.folio {
    display: inline-flex; align-items: center; gap: .7rem;
    font: 600 .78rem/1 var(--texto);
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--verde);
}
.folio-n {
    flex: none;
    white-space: nowrap;
    font-family: var(--mono);
    letter-spacing: .02em;
    padding: .38rem .5rem;
    border: 1.5px solid currentColor;
    border-radius: 3px;
    transform: rotate(-2deg);
}
.folio-claro { color: #9cc0e6; }

.seccion-cabeza { max-width: 760px; margin-bottom: clamp(2.2rem, 5vw, 3.6rem); }
.seccion-cabeza h2 { margin-top: 1rem; font-size: clamp(2rem, 4.2vw, 3.2rem); }
.seccion-cabeza h2 em, .motivos h2 em, .preguntas h2 em, .contacto h2 em { font-style: italic; font-weight: 500; color: var(--verde); }
.seccion-bajada { margin-top: 1rem; color: var(--tinta-2); font-size: 1.1rem; max-width: 62ch; }

/* --------------------------------------------------------------- Cabecera */

.cabecera {
    position: sticky; top: 0; z-index: 50;
    background: color-mix(in srgb, var(--papel) 88%, transparent);
    backdrop-filter: blur(10px) saturate(140%);
    -webkit-backdrop-filter: blur(10px) saturate(140%);
    border-bottom: 1px solid transparent;
    transition: border-color .25s, box-shadow .25s;
}
.cabecera.con-sombra { border-bottom-color: var(--linea); box-shadow: 0 6px 24px -18px rgba(19, 32, 29, .5); }
.cabecera-fila { display: flex; align-items: center; justify-content: space-between; gap: 1rem; min-height: 72px; }

.marca { display: inline-flex; align-items: center; gap: .7rem; text-decoration: none; }
.marca img { width: 132px; height: auto; }
.marca-sello {
    font: 700 .72rem/1 var(--mono);
    letter-spacing: .14em;
    color: var(--teja);
    border: 1.5px solid var(--teja);
    border-radius: 3px;
    padding: .3rem .42rem;
    transform: rotate(-3deg);
}

.nav { display: flex; align-items: center; gap: .3rem; }
.nav a:not(.btn) {
    padding: .5rem .75rem;
    border-radius: 999px;
    text-decoration: none;
    font-weight: 600;
    font-size: .95rem;
    color: var(--tinta-2);
    transition: color .2s, background-color .2s;
}
.nav a:not(.btn):hover { color: var(--tinta); background: var(--papel-2); }
.nav a.activo { color: var(--verde); }
.nav-cta { margin-left: .5rem; }

.menu-boton {
    display: none;
    width: 46px; height: 46px;
    border: 1.5px solid var(--tinta);
    border-radius: 50%;
    background: transparent;
    cursor: pointer;
    position: relative;
}
.menu-boton-lineas, .menu-boton-lineas::before, .menu-boton-lineas::after {
    position: absolute; left: 50%; width: 18px; height: 2px; margin-left: -9px;
    background: var(--tinta); border-radius: 2px; content: ""; transition: transform .25s var(--ease), opacity .2s;
}
.menu-boton-lineas { top: 50%; margin-top: -1px; }
.menu-boton-lineas::before { top: -6px; }
.menu-boton-lineas::after { top: 6px; }
.menu-boton[aria-expanded="true"] .menu-boton-lineas { background: transparent; }
.menu-boton[aria-expanded="true"] .menu-boton-lineas::before { transform: translateY(6px) rotate(45deg); }
.menu-boton[aria-expanded="true"] .menu-boton-lineas::after { transform: translateY(-6px) rotate(-45deg); }

/* ------------------------------------------------------------------ Héroe */

.heroe {
    position: relative;
    padding: clamp(2rem, 5vw, 4rem) 0 clamp(3rem, 6vw, 5rem);
    overflow: hidden;
    background:
        radial-gradient(ellipse 60% 55% at 78% 60%, rgba(45, 91, 138, .09), transparent 70%),
        linear-gradient(var(--papel), var(--papel));
}
/* Líneas de cuaderno muy tenues: el papel del documento. */
.heroe::before {
    content: ""; position: absolute; inset: 0; pointer-events: none;
    background-image: linear-gradient(rgba(45,91,138,.07) 1px, transparent 1px), linear-gradient(90deg, rgba(45,91,138,.07) 1px, transparent 1px); background-size: 28px 28px;
    mask-image: linear-gradient(90deg, #000 0%, #000 40%, transparent 70%);
    -webkit-mask-image: linear-gradient(90deg, #000 0%, #000 40%, transparent 70%);
}

.heroe-grilla {
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.12fr);
    align-items: center;
    gap: clamp(1rem, 2.5vw, 2.5rem);
}

.heroe-titulo-kw { display: block; font-size: .5em; letter-spacing: -.01em; color: var(--verde); margin-bottom: .18em; }
.heroe-titulo { margin-top: 1.4rem; font-size: clamp(2.5rem, 5.2vw, 4.4rem); line-height: 1.02; letter-spacing: -.035em; }

.subrayado { position: relative; display: inline-block; color: var(--teja); white-space: nowrap; }
.subrayado svg { position: absolute; left: -2%; bottom: -.22em; width: 104%; height: .34em; overflow: visible; }
.subrayado path {
    fill: none; stroke: var(--oro); stroke-width: 6; stroke-linecap: round;
    stroke-dasharray: 320; stroke-dashoffset: 320;
    animation: trazo 1.1s .7s var(--ease) forwards;
}
@keyframes trazo { to { stroke-dashoffset: 0; } }

.heroe-bajada { margin-top: 1.4rem; font-size: clamp(1.06rem, 1.4vw, 1.2rem); color: var(--tinta-2); max-width: 46ch; }
.heroe-acciones { margin-top: 2rem; display: flex; flex-wrap: wrap; gap: .6rem; }

.heroe-prueba { margin-top: 2.2rem; padding-top: 1.2rem; border-top: 1px dashed var(--linea); }
.heroe-prueba-titulo { font: 600 .74rem/1 var(--texto); letter-spacing: .12em; text-transform: uppercase; color: var(--gris); }
.heroe-prueba ul { list-style: none; margin: .8rem 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: .4rem 1.4rem; }
.heroe-prueba li { font-family: var(--display); font-weight: 600; font-size: 1.12rem; color: var(--tinta); position: relative; }
.heroe-prueba li + li::before { content: "·"; position: absolute; left: -.85rem; color: var(--teja); }

.escena {
    position: relative;
    margin: 0 -2vw 0 0;
    aspect-ratio: 13 / 10;
    width: 100%;
    opacity: 0;
    transform: translateY(14px) scale(.985);
    transition: opacity .9s var(--ease), transform 1.1s var(--ease);
}
.escena.esta-lista { opacity: 1; transform: none; }
.escena canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; pointer-events: none; }

.escena-pausa {
    position: absolute; right: 4px; bottom: 4px; z-index: 2;
    display: inline-flex; align-items: center; gap: .4rem;
    padding: .42rem .8rem;
    border: 1px solid var(--linea); border-radius: 999px;
    background: color-mix(in srgb, var(--blanco) 86%, transparent);
    color: var(--tinta-2);
    font: 600 .76rem/1 var(--texto);
    cursor: pointer;
    opacity: .6;
    transition: opacity .2s, border-color .2s;
}
.escena-pausa:hover, .escena-pausa:focus-visible { opacity: 1; border-color: var(--teja); }
.escena-pausa .i-play { display: none; }
.escena.esta-pausada .i-pausa { display: none; }
.escena.esta-pausada .i-play { display: inline-block; }

.escena-leyenda {
    position: absolute; left: 4px; bottom: 6px;
    display: flex; flex-wrap: wrap; gap: .3rem .9rem;
    font: 600 .74rem/1 var(--texto); color: var(--gris);
}
.escena-leyenda span { display: inline-flex; align-items: center; gap: .4rem; }
.punto { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.p-verde { background: var(--verde); } .p-oro { background: var(--oro); } .p-teja { background: var(--teja); }

/* ------------------------------------------------------------------ Ciclo */

.ciclo { padding: clamp(4rem, 9vw, 7rem) 0; background: var(--blanco); border-block: var(--borde); }

.ciclo-lista {
    list-style: none; margin: 0; padding: 0;
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    position: relative;
    counter-reset: paso;
}
/* La línea del recorrido: se dibuja a medida que la sección entra. */
.ciclo-lista::before {
    content: ""; position: absolute; left: 0; right: 0; top: 23px; height: 2px;
    background: var(--linea);
}
.ciclo-lista::after {
    content: ""; position: absolute; left: 0; top: 23px; height: 2px; width: 100%;
    background: linear-gradient(90deg, var(--verde), var(--oro), var(--teja));
    transform-origin: left; transform: scaleX(var(--avance, 0));
    transition: transform .2s linear;
}

.ciclo-paso { position: relative; padding: 0 1.2rem 0 0; }
.ciclo-num {
    position: relative; z-index: 1;
    display: grid; place-items: center;
    width: 48px; height: 48px;
    border-radius: 50%;
    background: var(--blanco);
    border: 2px solid var(--verde);
    color: var(--verde);
    font: 700 .9rem/1 var(--mono);
    transition: background-color .4s, color .4s, border-color .4s;
}
.ciclo-paso:nth-child(5) .ciclo-num { border-color: var(--teja); color: var(--teja); }
.ciclo-paso.encendido .ciclo-num { background: var(--verde); color: #fff; }
.ciclo-paso:nth-child(5).encendido .ciclo-num { background: var(--teja); color: #fff; }
.ciclo-paso h3 { margin-top: 1.2rem; font-size: 1.28rem; }
.ciclo-paso p { margin-top: .5rem; color: var(--tinta-2); font-size: .96rem; }

/* ---------------------------------------------------------------- Módulos */

.modulos {
    padding: clamp(4rem, 9vw, 7rem) 0;
    background: var(--verde-noche);
    color: #e9f1ef;
    position: relative;
    overflow: hidden;
}
.modulos::before {
    content: ""; position: absolute; inset: 0; pointer-events: none;
    background-image: radial-gradient(rgba(255, 255, 255, .06) 1px, transparent 1.2px);
    background-size: 22px 22px;
    mask-image: radial-gradient(ellipse 70% 60% at 70% 40%, #000, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse 70% 60% at 70% 40%, #000, transparent 75%);
}
.seccion-cabeza-clara h2 { color: #fff; }
.seccion-cabeza-clara h2 em { color: #f2b705 !important; }
.seccion-cabeza-clara .seccion-bajada { color: #b9cdc9; }

.visor {
    position: relative;
    display: grid;
    grid-template-columns: minmax(250px, 4fr) minmax(0, 8fr);
    gap: clamp(1.2rem, 3vw, 2.6rem);
    align-items: start;
}
.visor-lista { display: flex; flex-direction: column; gap: .2rem; }
.visor-lista button {
    text-align: left;
    background: transparent;
    border: 0;
    border-left: 2px solid rgba(255, 255, 255, .14);
    color: inherit;
    padding: .78rem 1rem .78rem 1.1rem;
    cursor: pointer;
    font: inherit;
    transition: border-color .25s, background-color .25s;
    border-radius: 0 var(--r-chico) var(--r-chico) 0;
}
.visor-lista button strong { display: block; font-family: var(--display); font-size: 1.12rem; font-weight: 600; color: #fff; }
.visor-lista button span {
    display: block; font-size: .9rem; color: #a9c1bc; line-height: 1.45;
    max-height: 0; overflow: hidden; opacity: 0;
    transition: max-height .35s var(--ease), opacity .3s, margin .3s;
}
.visor-lista button:hover { background: rgba(255, 255, 255, .04); }
.visor-lista button[aria-selected="true"] { border-left-color: var(--oro); background: rgba(255, 255, 255, .06); }
.visor-lista button[aria-selected="true"] span { max-height: 4.5em; opacity: 1; margin-top: .3rem; }

.visor-pantalla { position: sticky; top: 96px; }
.visor-pantalla:focus-visible { outline-offset: 6px; }

.navegador {
    margin: 0;
    background: var(--blanco);
    border-radius: var(--r);
    overflow: hidden;
    box-shadow: 0 30px 60px -30px rgba(0, 0, 0, .55), 0 0 0 1px rgba(19, 32, 29, .08);
}
.navegador-barra {
    display: flex; align-items: center; gap: .8rem;
    padding: .55rem .8rem;
    background: #ece7dc;
    border-bottom: 1px solid #ddd5c4;
}
.navegador-puntos { display: inline-flex; gap: 6px; }
.navegador-puntos i { width: 10px; height: 10px; border-radius: 50%; background: #d1c7b3; display: block; }
.navegador-puntos i:first-child { background: #e7836b; }
.navegador-puntos i:nth-child(2) { background: #e6c15c; }
.navegador-puntos i:nth-child(3) { background: #6fbf8e; }
.navegador-url {
    flex: 1; min-width: 0;
    font: 500 .78rem/1 var(--mono);
    color: #5d6460;
    background: #f8f5ee;
    border-radius: 999px;
    padding: .38rem .8rem;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.navegador-imagen { position: relative; aspect-ratio: 16 / 10; background: #f1efe9; overflow: hidden; }
.navegador-imagen img { width: 100%; height: 100%; object-fit: cover; object-position: top left; transition: opacity .35s var(--ease), transform .6s var(--ease); }
.navegador-imagen img.cambiando { opacity: 0; transform: scale(1.015); }
.visor-pie { margin-top: .9rem; font-size: .88rem; color: #a9c1bc; }
.visor-pie::before { content: "Captura real · "; color: var(--oro); font-weight: 700; }

/* ------------------------------------------------------------------ Casos */

.casos { padding: clamp(4rem, 9vw, 7rem) 0; }

.caso {
    display: grid;
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: clamp(1.8rem, 5vw, 4.5rem);
    align-items: center;
    padding: clamp(2.4rem, 5vw, 3.6rem) 0;
    border-top: var(--borde);
}
.caso-invertido { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); }
.caso-invertido .caso-imagenes { order: 2; }

.caso-imagenes { position: relative; padding: 0 9% 12% 0; }
.caso-invertido .caso-imagenes { padding: 0 0 12% 9%; }
.caso-solo .caso-imagenes, .caso-invertido.caso-solo .caso-imagenes { padding: 0; }
.caso-principal { transition: transform .6s var(--ease); }
.caso-principal img { aspect-ratio: 16 / 10; object-fit: cover; object-position: top; width: 100%; }
.caso-secundaria {
    position: absolute; right: 0; bottom: 0; width: 46%;
    transform: rotate(2.2deg);
    border: 5px solid var(--blanco);
    transition: transform .6s var(--ease);
}
.caso-secundaria img { aspect-ratio: 16 / 10; object-fit: cover; object-position: top left; width: 100%; }
.caso-invertido .caso-secundaria { right: auto; left: 0; transform: rotate(-2.2deg); }
.caso:hover .caso-principal { transform: translateY(-4px); }
.caso:hover .caso-secundaria { transform: rotate(0deg) translateY(-6px); }

.caso-etiqueta { font: 600 .78rem/1.3 var(--texto); letter-spacing: .12em; text-transform: uppercase; color: var(--teja); }
.caso-texto h3 { margin-top: .6rem; font-size: clamp(1.9rem, 3.4vw, 2.6rem); }
.caso-texto > p:not(.caso-etiqueta) { margin-top: 1rem; color: var(--tinta-2); }
.caso-lista { list-style: none; margin: 1.3rem 0 0; padding: 0; display: grid; gap: .55rem; }
.caso-lista li { position: relative; padding-left: 1.7rem; font-size: .98rem; }
.caso-lista li::before {
    content: ""; position: absolute; left: 0; top: .42em;
    width: 1rem; height: .55rem;
    border-left: 2.5px solid var(--verde); border-bottom: 2.5px solid var(--verde);
    transform: rotate(-45deg) scale(.8);
}
.enlace-flecha {
    display: inline-flex; gap: .4rem; margin-top: 1.5rem;
    font-weight: 700; color: var(--verde);
    text-decoration: none;
    border-bottom: 2px solid currentColor;
    padding-bottom: .1rem;
}
.enlace-flecha:hover { color: var(--teja); }
.casos-nota { margin-top: 2rem; padding-top: 2rem; border-top: var(--borde); color: var(--gris); font-size: .95rem; }
.casos-nota a { color: var(--verde); font-weight: 600; }

/* ---------------------------------------------------------------- Motivos */

.motivos { padding: clamp(4rem, 9vw, 7rem) 0; background: var(--papel-2); }
.motivos-grilla { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.motivos h2 { margin-top: 1rem; font-size: clamp(2rem, 4.2vw, 3.2rem); }
.motivos-intro { position: sticky; top: 110px; }
.motivos-lista { margin: 0; display: grid; gap: 0; }
.motivos-lista > div { padding: 1.6rem 0; border-top: 1.5px solid var(--tinta); display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 1.2rem; }
.motivos-lista > div:last-child { border-bottom: 1.5px solid var(--tinta); }
.motivos-lista dt { font-family: var(--display); font-weight: 600; font-size: 1.3rem; line-height: 1.2; }
.motivos-lista dd { margin: 0; color: var(--tinta-2); }

/* ------------------------------------------------------------------- Cómo */

.como { padding: clamp(4rem, 9vw, 7rem) 0; }
.como-lista { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.2rem; }
.como-lista li {
    position: relative;
    padding: 1.6rem 1.4rem 1.7rem;
    background: var(--blanco);
    border: var(--borde);
    border-radius: var(--r);
}
.como-lista li > span {
    display: block;
    font: 700 3rem/1 var(--display);
    color: transparent;
    -webkit-text-stroke: 1.5px var(--verde);
}
.como-lista li:last-child > span { -webkit-text-stroke-color: var(--teja); }
.como-lista h3 { margin-top: 1rem; font-size: 1.3rem; }
.como-lista p { margin-top: .5rem; color: var(--tinta-2); font-size: .96rem; }

/* -------------------------------------------------------------- Preguntas */

.preguntas { padding: clamp(4rem, 9vw, 7rem) 0; background: var(--blanco); border-top: var(--borde); }
.preguntas-grilla { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: clamp(2rem, 5vw, 5rem); }
.preguntas h2 { margin-top: 1rem; font-size: clamp(2rem, 4.2vw, 3.2rem); }
.acordeon details { border-bottom: var(--borde); }
.acordeon details:first-child { border-top: var(--borde); }
.acordeon summary {
    list-style: none;
    cursor: pointer;
    padding: 1.25rem 2.6rem 1.25rem 0;
    position: relative;
    font-family: var(--display);
    font-weight: 600;
    font-size: 1.2rem;
}
.acordeon summary::-webkit-details-marker { display: none; }
.acordeon summary::after {
    content: ""; position: absolute; right: .4rem; top: 50%;
    width: 12px; height: 12px; margin-top: -9px;
    border-right: 2px solid var(--verde); border-bottom: 2px solid var(--verde);
    transform: rotate(45deg);
    transition: transform .3s var(--ease);
}
.acordeon details[open] summary::after { transform: rotate(225deg); margin-top: -3px; }
.acordeon summary:hover { color: var(--verde); }
.acordeon details p { padding: 0 2.6rem 1.4rem 0; color: var(--tinta-2); }

/* --------------------------------------------------------------- Contacto */

.contacto { padding: clamp(4rem, 9vw, 7rem) 0; background: var(--verde); color: #e9f3f1; position: relative; overflow: hidden; }
.contacto::after {
    /* Sello de agua: guiño al timbre del certificado. */
    content: "";
    position: absolute; right: -90px; top: -90px;
    width: 360px; height: 360px; border-radius: 50%;
    border: 2px dashed rgba(255, 255, 255, .14);
    box-shadow: inset 0 0 0 26px rgba(255, 255, 255, .03);
    pointer-events: none;
}
.contacto-grilla { position: relative; z-index: 1; display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
.contacto h2 { margin-top: 1rem; font-size: clamp(2rem, 4.2vw, 3.2rem); color: #fff; }
.contacto h2 em { color: #ffd27a !important; }
.contacto-texto > p:not(.folio) { margin-top: 1rem; color: #cfe3df; }
.contacto-directo { list-style: none; padding: 0; margin: 1rem 0 0; display: grid; gap: .5rem; }
.contacto-directo a { color: #fff; font-weight: 700; text-decoration-color: rgba(255, 255, 255, .4); text-underline-offset: 4px; }
.contacto-directo a:hover { text-decoration-color: #ffd27a; }

.formulario {
    background: var(--blanco);
    color: var(--tinta);
    border-radius: 14px;
    padding: clamp(1.4rem, 3vw, 2.2rem);
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.1rem 1.2rem;
    box-shadow: 0 30px 60px -30px rgba(0, 0, 0, .45);
}
.campo { display: grid; gap: .4rem; }
.campo-ancho { grid-column: 1 / -1; }
.campo label { font-weight: 700; font-size: .92rem; }
.opcional { font-weight: 500; color: var(--gris); }
.campo input, .campo select, .campo textarea {
    width: 100%;
    font: 500 1rem/1.4 var(--texto);
    color: var(--tinta);
    background: var(--papel);
    border: 1.5px solid var(--linea);
    border-radius: 8px;
    padding: .78rem .9rem;
    min-height: 48px;
    transition: border-color .2s, box-shadow .2s, background-color .2s;
}
.campo textarea { resize: vertical; min-height: 96px; }
.campo input:hover, .campo select:hover, .campo textarea:hover { border-color: #c2b597; }
.campo input:focus, .campo select:focus, .campo textarea:focus { outline: none; border-color: var(--verde); background: #fff; box-shadow: 0 0 0 4px rgba(45, 91, 138, .15); }
.campo input[aria-invalid="true"] { border-color: var(--error); box-shadow: 0 0 0 4px rgba(180, 35, 24, .1); }
.campo-error { color: var(--error); font-size: .86rem; font-weight: 600; }
.formulario-pie { display: flex; flex-wrap: wrap; align-items: center; gap: .9rem 1.2rem; margin-top: .3rem; }
.formulario-nota { font-size: .85rem; color: var(--gris); flex: 1 1 220px; }
.formulario-ok { background: #e6f4ef; border: 1.5px solid #9fd2bd; color: #0d4f3a; border-radius: 8px; padding: .8rem 1rem; font-weight: 600; }
.formulario-ok a { color: inherit; }

/* -------------------------------------------------------------------- Pie */

.pie { background: var(--verde-noche); color: #b9cdc9; padding: 2.4rem 0; }
.pie-fila { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem 2rem; }
.marca-pie img { width: 120px; }
.pie-texto { font-size: .92rem; }
.pie-credito a { color: #fff; font-weight: 600; font-size: .92rem; text-decoration-color: rgba(255, 255, 255, .35); text-underline-offset: 4px; }
.pie-credito a:hover { text-decoration-color: var(--oro); }

/* -------------------------------------------------------- WhatsApp flotante */

.wa-flotante {
    position: fixed; right: 18px; bottom: 18px; z-index: 40;
    width: 58px; height: 58px; border-radius: 50%;
    display: grid; place-items: center;
    background: #1f9d55; color: #fff;
    box-shadow: 0 12px 28px -10px rgba(0, 0, 0, .45);
    transition: transform .25s var(--ease), background-color .2s;
}
.wa-flotante:hover { transform: translateY(-3px) scale(1.04); background: #17864a; }

/* --------------------------------------------------------------- Aparición */

.js [data-aparece] { opacity: 0; transform: translateY(22px); transition: opacity .8s var(--ease), transform .9s var(--ease); transition-delay: var(--retardo, 0s); }
.js [data-aparece].visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
    .js [data-aparece] { opacity: 1; transform: none; transition: none; }
    .subrayado path { animation: none; stroke-dashoffset: 0; }
    .escena { transition: none; transform: none; }
    .ciclo-lista::after { transition: none; }
    .caso-principal, .caso-secundaria, .btn, .wa-flotante { transition: none; }
}


/* --------------------------------------------------- A medida (comparativa) */

.medida { padding: clamp(4rem, 9vw, 7rem) 0; background: var(--blanco); border-block: var(--borde); }
.tabla-envoltura { overflow-x: auto; border-radius: var(--r); border: var(--borde); background: var(--papel); }
.comparativa { width: 100%; border-collapse: collapse; min-width: 640px; font-size: .98rem; }
.comparativa th, .comparativa td { text-align: left; padding: 1.05rem 1.2rem; vertical-align: top; border-bottom: var(--borde); }
.comparativa tbody tr:last-child th, .comparativa tbody tr:last-child td { border-bottom: 0; }
.comparativa thead th { font: 700 .78rem/1.3 var(--texto); letter-spacing: .1em; text-transform: uppercase; color: var(--gris); background: var(--papel-2); }
.comparativa thead th.col-pixaweb { color: #fff; background: var(--verde); }
.comparativa tbody th { font-family: var(--display); font-weight: 600; font-size: 1.08rem; width: 20%; }
.comparativa td.col-pixaweb { background: rgba(45, 91, 138, .07); color: var(--tinta); font-weight: 600; position: relative; padding-left: 2.6rem; }
.comparativa td.col-pixaweb::before {
    content: ""; position: absolute; left: 1.2rem; top: 1.45rem;
    width: .8rem; height: .45rem;
    border-left: 2.5px solid var(--verde); border-bottom: 2.5px solid var(--verde);
    transform: rotate(-45deg);
}
.comparativa td:last-child { color: var(--gris); }

/* ---------------------------------------------------------- Conductores */

.conductores { padding: clamp(4rem, 9vw, 7rem) 0; }
.conductores-grilla { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
.conductores h2 { margin-top: 1rem; font-size: clamp(1.9rem, 3.2vw, 2.6rem); }
.conductores h2 em { font-style: italic; font-weight: 500; color: var(--verde); }
.conductores-texto > p:not(.folio) { margin-top: 1rem; color: var(--tinta-2); }
.conductores-nota { font-size: .95rem; }
.conductores-nota a { color: var(--verde); font-weight: 700; }
.conductores-imagen img { aspect-ratio: 16 / 10; object-fit: cover; object-position: top left; width: 100%; }
.medida h2 em { font-style: italic; font-weight: 500; color: var(--verde); }

@media (max-width: 960px) {
    .conductores-grilla { grid-template-columns: 1fr; }
}

/* -------------------------------------------------------------- Responsive */

@media (max-width: 1140px) {
    .menu-boton { display: inline-block; }
    .nav {
        position: fixed; inset: 72px 0 auto 0;
        flex-direction: column; align-items: stretch; gap: .2rem;
        padding: 1rem 1.25rem 1.6rem;
        background: var(--papel);
        border-bottom: var(--borde);
        box-shadow: 0 24px 40px -24px rgba(19, 32, 29, .4);
        transform: translateY(-8px); opacity: 0; visibility: hidden;
        transition: opacity .25s, transform .3s var(--ease), visibility 0s .3s;
    }
    .nav.abierto { transform: none; opacity: 1; visibility: visible; transition: opacity .25s, transform .3s var(--ease); }
    .nav a:not(.btn) { padding: .85rem .6rem; font-size: 1.05rem; border-radius: 8px; }
    .nav-cta { margin: .6rem 0 0; }
}

@media (max-width: 1080px) {
    .ciclo-lista { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: 2.6rem; }
    .ciclo-lista::before, .ciclo-lista::after { display: none; }
    .como-lista { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 960px) {

    .heroe-grilla { grid-template-columns: 1fr; }
    .escena { aspect-ratio: 4 / 3; max-width: 680px; margin-inline: auto; }

    .visor { grid-template-columns: 1fr; }
    .visor-lista { flex-direction: row; overflow-x: auto; gap: .4rem; padding-bottom: .4rem; scroll-snap-type: x mandatory; scrollbar-width: thin; }
    .visor-lista button { flex: 0 0 auto; border-left: 0; border-bottom: 2px solid rgba(255, 255, 255, .14); border-radius: var(--r-chico) var(--r-chico) 0 0; scroll-snap-align: start; padding: .7rem .9rem; }
    .visor-lista button strong { font-size: 1rem; white-space: nowrap; }
    .visor-lista button span { display: none; }
    .visor-lista button[aria-selected="true"] { border-bottom-color: var(--oro); }
    .visor-pantalla { position: static; }

    .caso, .caso-invertido { grid-template-columns: 1fr; }
    .caso-invertido .caso-imagenes { order: 0; }

    .motivos-grilla, .preguntas-grilla, .contacto-grilla { grid-template-columns: 1fr; }
    .motivos-intro { position: static; }
}

@media (max-width: 640px) {
    body { font-size: 1rem; }
    .contenedor { width: min(100% - 2rem, var(--ancho)); }
    .cabecera-fila { min-height: 64px; }
    .nav { inset: 64px 0 auto 0; }
    .marca img { width: 112px; }
    .heroe-acciones .btn { width: 100%; }
    .escena { aspect-ratio: 5 / 4; margin-right: 0; }
    .heroe-prueba ul { display: grid; grid-template-columns: 1fr 1fr; gap: .5rem 1rem; }
    .heroe-prueba li + li::before { display: none; }
    .folio { gap: .55rem; font-size: .72rem; letter-spacing: .1em; }
    .escena-leyenda { display: none; }
    .ciclo-lista { grid-template-columns: 1fr; row-gap: 0; }
    .ciclo-paso { display: grid; grid-template-columns: 48px 1fr; column-gap: 1rem; padding: 0 0 1.6rem; }
    .ciclo-paso::before { content: ""; position: absolute; left: 23px; top: 48px; bottom: 0; width: 2px; background: var(--linea); }
    .ciclo-paso:last-child::before { display: none; }
    .ciclo-paso .ciclo-num { grid-row: span 2; }
    .ciclo-paso h3 { margin-top: .6rem; }
    .como-lista { grid-template-columns: 1fr; }
    .motivos-lista > div { grid-template-columns: 1fr; gap: .5rem; }
    .formulario { grid-template-columns: 1fr; }
    .formulario-pie .btn { width: 100%; }
    .caso-imagenes { padding: 0 6% 14% 0; }
    .caso-invertido .caso-imagenes { padding: 0 0 14% 6%; }
    .wa-flotante { width: 52px; height: 52px; right: 14px; bottom: 14px; }
    .acordeon summary { font-size: 1.08rem; }
}

/* --------------------------------------------------- Sistemas: extras */
.tableros { padding: clamp(4rem, 9vw, 7rem) 0; background: #14171d; color: #e6e8ec; position: relative; overflow: hidden; }
.tableros::before { content: ""; position: absolute; inset: 0; pointer-events: none; background-image: radial-gradient(rgba(255,255,255,.07) 1px, transparent 1.2px); background-size: 22px 22px; }
.tableros .contenedor { position: relative; }
.tableros h2 { margin-top: 1rem; font-size: clamp(2rem, 4.2vw, 3.2rem); color: #fff; }
.tableros h2 em { font-style: italic; font-weight: 500; color: var(--oro); }
.tableros .seccion-bajada { color: #b6bcc8; }
.tableros-grilla { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; margin-top: 2.4rem; }
.tablero { margin: 0; background: #1d2129; border: 1px solid rgba(255,255,255,.08); border-radius: 14px; padding: 1rem 1rem 1.1rem; transition: transform .45s var(--ease), border-color .3s; }
.tablero:hover { transform: translateY(-6px) rotate(-1deg); border-color: var(--oro); }
.tablero img { width: 100%; height: auto; aspect-ratio: 720 / 496; object-fit: contain; }
.tablero figcaption { margin-top: .7rem; font-family: var(--display); font-weight: 600; font-size: 1.08rem; color: #fff; }
.tablero figcaption span { display: block; font-family: var(--texto); font-weight: 500; font-size: .86rem; color: #9aa3b2; margin-top: .2rem; }
.tableros-pie { margin-top: 1.8rem; color: #9aa3b2; font-size: .95rem; }
.tableros-pie a { color: var(--oro); font-weight: 700; }
.tecnologia { padding: clamp(4rem, 9vw, 7rem) 0; background: var(--blanco); border-block: var(--borde); }
.pila { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; border-top: 1.5px solid var(--tinta); }
.pila li { padding: 1.4rem 1.4rem 1.6rem 0; border-bottom: 1px solid var(--linea); }
.pila li:nth-child(3n+2), .pila li:nth-child(3n) { padding-left: 1.4rem; border-left: 1px solid var(--linea); }
.pila strong { display: block; font-family: var(--display); font-size: 1.22rem; }
.pila span { display: block; margin-top: .4rem; color: var(--tinta-2); font-size: .96rem; }
.pila code { font-family: var(--mono); font-size: .82rem; background: var(--papel-2); padding: .1rem .35rem; border-radius: 4px; }
.caso-nota { margin-top: 1rem; font-size: .88rem; color: var(--gris); font-style: italic; }
.pie-texto a { color: #fff; }
.medida h2 em, .motivos h2 em { color: var(--verde); }
@media (max-width: 1080px) { .tableros-grilla { grid-template-columns: repeat(2, minmax(0, 1fr)); } .pila { grid-template-columns: 1fr 1fr; } .pila li:nth-child(n) { padding-left: 0; border-left: 0; } .pila li:nth-child(2n) { padding-left: 1.4rem; border-left: 1px solid var(--linea); } }
@media (max-width: 640px) { .pila { grid-template-columns: 1fr; } .pila li:nth-child(2n) { padding-left: 0; border-left: 0; } .tableros-grilla { gap: .7rem; } }

/* ------------------------------------------------------- Tests: demo */
.tests { padding: clamp(4rem, 9vw, 7rem) 0; background: var(--papel-2); }
.tests-grilla { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(2rem, 5vw, 4.5rem); align-items: start; }
.tests h2 { margin-top: 1rem; font-size: clamp(2rem, 4vw, 3rem); }
.tests h2 em { font-style: italic; font-weight: 500; color: var(--verde); }
.tests-texto > p:not(.folio) { margin-top: 1rem; color: var(--tinta-2); }
.test-demo { background: var(--blanco); border-radius: 16px; border: 1px solid var(--linea); box-shadow: 0 30px 60px -34px rgba(23, 25, 31, .45); padding: clamp(1.3rem, 3vw, 2rem); position: sticky; top: 96px; }
.test-cabeza { display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.test-etiqueta { font: 700 .72rem/1 var(--mono); letter-spacing: .12em; text-transform: uppercase; color: var(--teja); border: 1.5px solid var(--teja); padding: .3rem .45rem; border-radius: 3px; transform: rotate(-2deg); }
.test-contador { font-size: .86rem; color: var(--gris); font-weight: 600; }
.test-progreso { height: 6px; background: var(--papel-2); border-radius: 99px; margin: 1rem 0 1.4rem; overflow: hidden; }
.test-progreso i { display: block; height: 100%; width: calc(var(--progreso, 0) * 100%); background: linear-gradient(90deg, var(--verde), var(--oro)); border-radius: inherit; transition: width .5s var(--ease); }
.test-inicio h3 { font-size: 1.7rem; }
.test-inicio p { margin: .7rem 0 1.3rem; color: var(--tinta-2); }
.test-nota { margin-top: 1rem !important; font-size: .82rem; color: var(--gris) !important; }
.test-pregunta { border: 0; margin: 0; padding: 0; }
.test-pregunta legend { font-family: var(--display); font-weight: 600; font-size: 1.32rem; line-height: 1.25; padding: 0; outline: none; }
.test-tiempo { display: inline-flex; margin-top: .6rem; font: 700 .9rem/1 var(--mono); color: var(--verde); background: rgba(45, 91, 138, .08); padding: .35rem .6rem; border-radius: 6px; }
.test-tiempo.urgente { color: var(--teja); background: rgba(210, 74, 23, .1); }
.test-opciones { display: grid; gap: .55rem; margin-top: 1.1rem; }
.test-opcion { display: flex; align-items: center; gap: .8rem; padding: .75rem .9rem; border: 1.5px solid var(--linea); border-radius: 10px; cursor: pointer; transition: border-color .2s, background-color .2s, transform .2s var(--ease); }
.test-opcion:hover { border-color: #b9c6d6; transform: translateX(2px); }
.test-opcion input { position: absolute; opacity: 0; pointer-events: none; }
.test-marca { flex: none; display: grid; place-items: center; width: 30px; height: 30px; border-radius: 8px; background: var(--papel-2); font: 700 .85rem/1 var(--mono); color: var(--tinta-2); transition: background-color .2s, color .2s; }
.test-opcion:has(input:checked) { border-color: var(--verde); background: rgba(45, 91, 138, .06); }
.test-opcion:has(input:checked) .test-marca { background: var(--verde); color: #fff; }
.test-opcion:has(input:focus-visible) { outline: 3px solid var(--oro); outline-offset: 2px; }
.test-escala { grid-template-columns: repeat(5, minmax(0, 1fr)); }
.test-escala .test-opcion { flex-direction: column; text-align: center; padding: .7rem .4rem; gap: .45rem; font-size: .8rem; line-height: 1.2; }
.test-acciones { display: flex; justify-content: space-between; gap: 1rem; margin-top: 1.4rem; }
.test-acciones .btn[disabled] { opacity: .45; cursor: not-allowed; transform: none; box-shadow: none; }
.test-resultado-titulo { font-family: var(--display); font-size: 1.3rem; line-height: 1.3; outline: none; }
.test-resultado-titulo strong { color: var(--verde); }
.test-barras { list-style: none; margin: 1.2rem 0 0; padding: 0; display: grid; gap: .7rem; }
.test-barras li { display: grid; grid-template-columns: 9.5rem 1fr 2.2rem; align-items: center; gap: .7rem; font-size: .92rem; }
.test-barra { height: 10px; border-radius: 99px; background: var(--papel-2); overflow: hidden; }
.test-barra i { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, var(--verde), var(--verde-claro)); transition: width 1s var(--ease); }
.test-resultado.animar .test-barra i { width: var(--valor); }
.test-barras li:nth-child(2) .test-barra i { transition-delay: .1s; } .test-barras li:nth-child(3) .test-barra i { transition-delay: .2s; } .test-barras li:nth-child(4) .test-barra i { transition-delay: .3s; } .test-barras li:nth-child(5) .test-barra i { transition-delay: .4s; }
.test-barra-num { font: 700 .85rem/1 var(--mono); text-align: right; }
.test-detalle { margin-top: 1rem; font-weight: 600; }
.test-resultado .btn { margin-top: 1.1rem; }
@media (max-width: 960px) { .tests-grilla { grid-template-columns: 1fr; } .test-demo { position: static; } }
@media (max-width: 640px) { .test-escala { grid-template-columns: 1fr; } .test-escala .test-opcion { flex-direction: row; text-align: left; font-size: .92rem; } .test-barras li { grid-template-columns: 7.5rem 1fr 2rem; font-size: .84rem; } }
@media (prefers-reduced-motion: reduce) { .test-barra i, .test-progreso i, .test-opcion { transition: none; } }