/* =========================================================
   Delta 2innovate — Estilos · Manual de marca v3 («Dibujamos el cambio»)
   Papel + tinta noche + rotulador amarillo. Trazo a mano, color desplazado, grano de papel.
   Mobile-first.
   ========================================================= */

:root {
  /* Paleta (manual v3, p. 09) */
  --paper: #ECECEA;      /* fondo principal: gris claro neutro (el manual v3 dice #F4EFE6; cambiado a petición) */
  --ink: #1A1A2E;        /* 25 % · texto, líneas, botones */
  --yellow: #FFC83D;     /* color de marca: el Δ y los subrayados. Nunca texto sobre claro (1,4:1) */
  --coral: #FF6B5B;      /* problema · urgencia */
  --lila: #6A4FE8;       /* método · enlaces (4,7:1 sobre papel; blanco sobre lila 5,4:1) */
  --menta: #5CD6A9;      /* resultado · logro */
  --grey: #5F5B6B;       /* texto secundario (5,7:1 sobre papel) */
  --white: #FFFFFF;
  --paper-2: #F5F5F3;    /* gris más claro para secciones alternas y tarjetas */
  --line: rgba(26, 26, 46, .16);
  --line-ink: rgba(236, 236, 234, .18);

  --font: 'Archivo', 'Arial', sans-serif;
  --hand: 'Caveat', 'Comic Sans MS', cursive;

  --gutter: clamp(16px, 4vw, 40px);
  --max: 1200px;
  --sec: clamp(72px, 11vw, 136px);
  --header-h: 68px;
  --ease: cubic-bezier(.16, 1, .3, 1);
  --offset: 5px;          /* desplazamiento risográfico */
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-padding-top: calc(var(--header-h) + 16px); }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 400 17px/1.55 var(--font); font-stretch: 100%;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
/* Grano de papel: ruido suave, 16 %, multiplicar (manual p. 19) */
body::after {
  content: ''; position: fixed; inset: 0; z-index: 100; pointer-events: none;
  opacity: .12; mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0.2  0 0 0 0 0.2  0 0 0 0 0.2  0 0 0 .5 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
p, h1, h2, h3, ul, ol, figure, blockquote { margin: 0; }
ul, ol { padding: 0; list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }
::selection { background: var(--yellow); color: var(--ink); }

:focus-visible { outline: 3px solid var(--lila); outline-offset: 3px; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: 16px; top: -60px; z-index: 200; background: var(--ink); color: var(--paper); padding: 10px 16px; text-decoration: none; }
.skip-link:focus { top: 12px; }

.wrap { width: 100%; max-width: calc(var(--max) + 2 * var(--gutter)); margin-inline: auto; padding-inline: var(--gutter); }

/* ---------- Tipografía (manual p. 12) ---------- */
.display, .h1, .h2, .h3 { font-family: var(--font); font-weight: 800; font-stretch: 115%; letter-spacing: -.035em; line-height: .95; }
.display { font-size: clamp(40px, 7.6vw, 104px); }
.h1 { font-size: clamp(38px, 6.6vw, 88px); }
.h2 { font-size: clamp(30px, 4.6vw, 60px); line-height: 1; }
.h3 { font-size: clamp(22px, 2.2vw, 28px); line-height: 1.1; letter-spacing: -.02em; font-stretch: 110%; }
.lead { font-size: clamp(18px, 1.7vw, 20px); line-height: 1.5; max-width: 34em; }
.muted { color: var(--grey); }
.label { font-size: 13px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--lila); }
.sec--ink .label { color: var(--yellow); }
.note { font: 600 clamp(22px, 2.2vw, 28px)/1.1 var(--hand); color: var(--ink); }

/* Subrayado de rotulador: franja amarilla detrás de 1–3 palabras, inclinada −1° (manual p. 19).
   Se «pinta» al aparecer. */
.hl {
  --hl-c: var(--yellow);
  background: linear-gradient(178.8deg, transparent 0 54%, var(--hl-c) 54% 90%, transparent 90%) no-repeat 0 0 / 100% 100%;
  -webkit-box-decoration-break: clone; box-decoration-break: clone;
  padding-inline: .06em; margin-inline: -.06em;
  transition: background-size .9s var(--ease) .45s;
}
.js .rv:not(.is-in) .hl { background-size: 0 100%; }
/* Sobre tinta el subrayado es un trazo fino, no una franja */
.band .hl { background-image: linear-gradient(178.8deg, transparent 0 92%, var(--hl-c) 92% 98%, transparent 98%); }

/* ---------- Botones rectos: relleno tinta o contorno 2 px (manual p. 19) ---------- */
.btn {
  --bg: transparent; --fg: var(--ink); --bd: var(--ink); --sh: var(--yellow);
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 52px; padding: 14px 24px; border-radius: 0;
  background: var(--bg); color: var(--fg); border: 2px solid var(--bd);
  font: 700 16px/1.2 var(--font); text-decoration: none; cursor: pointer;
  box-shadow: 0 0 0 0 var(--sh);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background-color .2s, color .2s;
}
.btn:hover { transform: translate(-3px, -3px); box-shadow: var(--offset) var(--offset) 0 0 var(--sh); }
.btn:active { transform: none; box-shadow: none; }
.btn .icon { width: 18px; height: 18px; transition: transform .2s var(--ease); }
.btn:hover .icon { transform: translateX(3px); }
.btn--primary { --bg: var(--ink); --fg: var(--paper); }
.btn--ghost { --sh: var(--lila); }
.band .btn--primary { --bg: var(--yellow); --fg: var(--ink); --bd: var(--yellow); --sh: var(--paper); }
.btn--sm { min-height: 42px; padding: 9px 16px; font-size: 15px; }
.btn--block { width: 100%; }
.btn[disabled] { opacity: .6; cursor: progress; transform: none; box-shadow: none; }
.btn-row { display: flex; flex-wrap: wrap; gap: 14px; }

.icon { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex: none; }

/* Enlace: lila (manual p. 10), subrayado y flecha */
.link-arrow { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; color: var(--lila); text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 5px; }
.link-arrow .icon { width: 22px; transition: transform .25s var(--ease); }
.link-arrow:hover .icon { transform: translateX(5px); }

/* ---------- Trazo a mano (manual p. 18): tinta, extremos redondos, ondulación suave ---------- */
.stroke { fill: none; stroke: var(--ink); stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; vector-effect: non-scaling-stroke; }
.stroke--yellow { stroke: var(--yellow); }
.stroke--scale { vector-effect: none; }
/* «Dibujar» un trazo: en trazos de proporción fija, con stroke-dashoffset; en trazos que se estiran, con una máscara que avanza */
.js .draw { stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset 1.4s var(--ease) .3s; }
.js .is-in .draw { stroke-dashoffset: 0; }
.js .reveal { clip-path: inset(-20px 100% -20px -20px); transition: clip-path 1.4s var(--ease) .3s; }
.js .is-in .reveal { clip-path: inset(-20px -20px -20px -20px); }
.hand-line { width: 100%; height: 14px; overflow: visible; }

/* Δ a mano con color desplazado: relleno plano movido respecto a su contorno */
.hd { width: 44px; height: 40px; overflow: visible; flex: none; }
.hd__fill { fill: var(--hd, var(--yellow)); transform: translate(3px, 2px); }
.hd .stroke { stroke-width: 3.2; }

/* ---------- Logo (manual p. 14–16) ---------- */
.logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); }
.logo__sym { width: 46px; height: auto; }
.logo__word { display: grid; line-height: 1; }
.logo__delta { font: 800 28px/0.85 var(--font); font-stretch: 118%; letter-spacing: -.035em; }
.logo__sub { font: 600 9.6px/1 var(--font); letter-spacing: .38em; margin-top: 5px; }

/* ---------- Cabecera ---------- */
.site-header { position: sticky; top: 0; z-index: 50; border-bottom: 2px solid transparent; transition: border-color .25s; }
.site-header::before { content: ''; position: absolute; inset: 0; z-index: -1; background: rgba(236, 236, 234, .92); -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px); }
.site-header.is-scrolled { border-bottom-color: var(--ink); }
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: var(--header-h); }

.nav-toggle { display: inline-flex; flex-direction: column; justify-content: center; gap: 6px; width: 44px; height: 44px; padding: 0 9px; margin-right: -9px; background: none; border: 0; cursor: pointer; }
.nav-toggle span { display: block; height: 2.5px; border-radius: 2px; background: var(--ink); transition: transform .25s var(--ease), opacity .2s; }
.nav-toggle span:nth-child(2) { width: 70%; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(8.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-8.5px) rotate(-45deg); }

.main-nav {
  position: fixed; inset: var(--header-h) 0 0 0; z-index: 49; background: var(--paper);
  padding: 16px var(--gutter) 32px; display: flex; flex-direction: column; justify-content: space-between;
  opacity: 0; visibility: hidden; transform: translateY(-8px);
  transition: opacity .25s, transform .3s var(--ease), visibility 0s .3s; overflow-y: auto;
}
.main-nav.is-open { opacity: 1; visibility: visible; transform: none; transition: opacity .25s, transform .3s var(--ease); }
.nav-list a { display: block; padding: 14px 0; border-bottom: 2px solid var(--ink); font: 800 30px/1.1 var(--font); font-stretch: 112%; letter-spacing: -.03em; text-decoration: none; }
.nav-list a[aria-current="page"] { color: var(--lila); }
.nav-cta { margin-top: 32px; }
body.menu-open { overflow: hidden; }

@media (min-width: 1000px) {
  :root { --header-h: 84px; }
  .nav-toggle { display: none; }
  .main-nav { position: static; opacity: 1; visibility: visible; transform: none; padding: 0; background: none; flex-direction: row; align-items: center; gap: 28px; overflow: visible; }
  .nav-list { display: flex; gap: 26px; }
  .nav-list a { padding: 6px 0; border: 0; font: 600 15px/1.2 var(--font); letter-spacing: 0; position: relative; z-index: 0; }
  .nav-list a::after {
    content: ''; position: absolute; left: -3px; right: -3px; bottom: 3px; height: 9px; z-index: -1;
    background: var(--yellow); transform: rotate(-1deg) scaleX(0); transform-origin: left; transition: transform .3s var(--ease);
  }
  .nav-list a:hover::after, .nav-list a[aria-current="page"]::after { transform: rotate(-1deg) scaleX(1); }
  .nav-list a[aria-current="page"] { color: var(--ink); }
  .nav-cta { margin-top: 0; }
  .logo__sym { width: 54px; }
  .logo__delta { font-size: 32px; }
  .logo__sub { font-size: 10.6px; }
}

/* ---------- Botón fijo en móvil ---------- */
.mcta { position: fixed; left: 0; right: 0; bottom: 0; z-index: 40; padding: 12px var(--gutter) calc(12px + env(safe-area-inset-bottom)); background: linear-gradient(to top, var(--paper) 60%, rgba(236, 236, 234, 0)); transition: transform .3s var(--ease), opacity .3s; }
.mcta.is-hidden { transform: translateY(110%); opacity: 0; pointer-events: none; }
body.has-mcta { padding-bottom: 84px; }
@media (min-width: 1000px) { .mcta { display: none; } body.has-mcta { padding-bottom: 0; } }

/* ---------- Secciones ---------- */
.sec { padding-block: var(--sec); position: relative; }
.sec--tight { padding-block: calc(var(--sec) * .6); }
.sec--white { background: var(--paper-2); }
.sec-head { display: grid; gap: 18px; margin-bottom: clamp(36px, 6vw, 64px); max-width: 900px; }

/* ---------- Hero ---------- */
.hero { padding-block: clamp(32px, 7vw, 88px) clamp(56px, 9vw, 112px); overflow: hidden; }
.hero__grid { display: grid; gap: 32px; align-items: center; }
.hero__copy { display: grid; gap: 24px; justify-items: start; }
.lead--wow strong { display: block; font: 800 clamp(22px, 2.5vw, 30px)/1.12 var(--font); font-stretch: 110%; letter-spacing: -.02em; margin-bottom: 8px; }
.hero__visual { position: relative; width: 100%; max-width: 540px; justify-self: center; padding-top: 28px; }
.hero__fig { width: 100%; height: auto; }
.js .hero__fig { opacity: 0; transform: translateY(16px) rotate(-1.5deg); animation: figIn 1.1s var(--ease) .25s forwards; }
@keyframes figIn { to { opacity: 1; transform: none; } }
.hero__note { position: absolute; left: 56%; top: -6px; transform: rotate(-5deg); white-space: nowrap; }
.js .hero__note { opacity: 0; animation: fade .6s ease 1.3s forwards; }
@keyframes fade { to { opacity: 1; } }
@media (min-width: 1000px) {
  .hero__grid { grid-template-columns: 1.25fr 1fr; gap: 48px; }
  .hero__visual { justify-self: end; }
}

.page-head { padding-block: clamp(44px, 8vw, 104px) clamp(28px, 5vw, 56px); }
.page-head .wrap { display: grid; gap: 22px; justify-items: start; }

/* ---------- Tarjetas: contorno de 2 px, sin esquinas; al pasar, color desplazado ---------- */
.cards { display: grid; gap: 18px; }
@media (min-width: 640px) { .cards--3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1000px) { .cards--3 { grid-template-columns: repeat(3, 1fr); } }
.card {
  position: relative; display: grid; align-content: start; gap: 12px;
  background: var(--paper-2); border: 2px solid var(--ink); padding: clamp(24px, 3vw, 32px);
  box-shadow: 0 0 0 0 var(--card-sh, var(--yellow));
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.sec--white .card { background: var(--paper); }
.card:hover { transform: translate(-4px, -4px); box-shadow: 8px 8px 0 0 var(--card-sh, var(--yellow)); }
.card__title { font: 800 clamp(22px, 2.1vw, 26px)/1.1 var(--font); font-stretch: 110%; letter-spacing: -.02em; }
.card p { color: var(--grey); }
.card--result { --card-sh: var(--menta); }
.card__icon { position: relative; width: 60px; height: 60px; margin-bottom: 6px; }
.card__icon::before { content: ''; position: absolute; inset: 10px 0 0 10px; border-radius: 50%; background: var(--menta); }
.card__icon .icon { position: relative; width: 50px; height: 50px; stroke-width: 2.2; }

/* ---------- Quiénes somos (breve, en Inicio) ---------- */
.who { display: grid; gap: 28px; align-items: center; }
.who__text { display: grid; gap: 16px; justify-items: start; }
.who__faces { display: flex; position: relative; }
.who__faces img { width: 96px; height: 96px; border-radius: 50%; object-fit: cover; border: 3px solid var(--ink); background: var(--paper); }
.who__faces img + img { margin-left: -20px; }
.who__lorena { object-position: 50% 40%; }
@media (min-width: 800px) {
  .who { grid-template-columns: auto 1fr; gap: 64px; }
  .who__faces img { width: 150px; height: 150px; }
  .who__faces img + img { margin-left: -32px; }
}

/* ---------- Lo que hacemos: 3 pasos sobre una línea a mano ---------- */
.steps { display: grid; gap: 32px; position: relative; }
.steps__line { display: none; }
.steps__item { display: grid; gap: 6px; align-content: start; }
.steps__num { font: 800 44px/1 var(--font); font-stretch: 120%; color: var(--lila); letter-spacing: -.04em; margin-bottom: 6px; }
.steps__k { font-size: 13px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--grey); }
.steps__t { font: 800 clamp(22px, 2.2vw, 28px)/1.1 var(--font); font-stretch: 110%; letter-spacing: -.02em; }
.steps__p { color: var(--grey); max-width: 24em; }
@media (min-width: 800px) {
  .steps { grid-template-columns: repeat(3, 1fr); gap: 40px; padding-top: 44px; }
  .steps__line { display: block; position: absolute; left: 0; right: 0; top: 0; }
}
.steps-foot { margin-top: clamp(32px, 5vw, 56px); }

/* ---------- Hoy Δ Con Delta ---------- */
.dt__head, .dt__row { display: grid; grid-template-columns: 1fr; gap: 12px; }
.dt__head { grid-template-columns: 1fr auto 1fr; align-items: center; padding: 6px 0 18px; border-bottom: 2px solid var(--ink); font-size: 13px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; }
.dt__head > span:first-child { color: var(--grey); }
.dt__head > span:last-child { text-align: right; }
.dt__head .hd { width: 56px; height: 52px; justify-self: center; }
.dt__row { padding: 28px 0; border-bottom: 1px solid var(--line); }
.dt__from { font-size: clamp(17px, 1.6vw, 19px); color: var(--grey); }
.dt__strike { background: linear-gradient(var(--coral), var(--coral)) no-repeat 0 60% / 100% 3px; transition: background-size 1s var(--ease) .4s; }
.js .dt__row:not(.is-in) .dt__strike { background-size: 0 3px; }
.dt__arrow { width: 42px; height: 28px; transform: rotate(90deg); transform-origin: 21px 14px; overflow: visible; transition: transform .3s var(--ease); }
.dt__arrow .stroke { stroke-width: 2.6; }
.dt__to { display: grid; gap: 8px; }
.dt__title { font: 800 clamp(24px, 2.6vw, 32px)/1.06 var(--font); font-stretch: 112%; letter-spacing: -.025em; }
.dt__to p { color: var(--grey); max-width: 32em; }
@media (min-width: 900px) {
  .dt__head { grid-template-columns: 5fr 120px 7fr; }
  .dt__head > span:last-child { text-align: left; }
  .dt__row { grid-template-columns: 5fr 120px 7fr; gap: 0; align-items: center; padding: 34px 0; }
  .dt__arrow { transform: none; justify-self: center; width: 70px; }
  .dt__row:hover .dt__arrow { transform: translateX(6px); }
}

/* ---------- Línea del tiempo (Cómo funciona): la línea se dibuja con el scroll ---------- */
.tl { position: relative; padding-left: 64px; display: grid; gap: clamp(56px, 8vw, 104px); padding-block: 48px 80px; }
.tl__line { position: absolute; left: 12px; top: 0; bottom: 0; width: 24px; height: 100%; overflow: visible; }
.tl__line .ghost { stroke: var(--line); stroke-width: 3; stroke-dasharray: 2 10; }
.tl__line--live { clip-path: inset(-10px -20px calc((1 - var(--p, 1)) * 100%) -20px); }
.tl__time { position: absolute; left: 0; font-size: 13px; font-weight: 700; letter-spacing: .06em; background: var(--paper); padding: 4px 0; }
.tl__time--start { top: -18px; }
.tl__time--end { bottom: -8px; transition: color .3s; }
.tl.is-done .tl__time--end { color: var(--lila); }
.tl__note { position: absolute; left: 96px; bottom: -16px; transform: rotate(-3deg); opacity: 0; transition: opacity .5s .2s; }
.tl.is-done .tl__note { opacity: 1; }
.tl__item { position: relative; display: grid; gap: 16px; }
.tl__node { position: absolute; left: -64px; top: -6px; width: 48px; height: 46px; display: grid; place-items: center; background: var(--paper); }
.tl__node .hd { width: 44px; height: 40px; }
.tl__node .hd__fill { opacity: 0; transform: none; transition: opacity .3s, transform .4s var(--ease); }
.tl__item.is-on .hd__fill { opacity: 1; transform: translate(3px, 2px); }
.tl__node b { position: absolute; top: 18px; font-size: 13px; }
.tl__k { font-size: 13px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--lila); }
.tl__t { font: 800 clamp(28px, 3.8vw, 46px)/1.02 var(--font); font-stretch: 115%; letter-spacing: -.03em; margin-top: 6px; }
@media (min-width: 900px) {
  .tl { padding-left: 112px; }
  .tl__line { left: 28px; }
  .tl__node { left: -112px; transform: translateX(16px); }
  .tl__time { transform: translateX(8px); }
  .tl__note { left: 150px; }
  .tl__item { grid-template-columns: 5fr 7fr; gap: 48px; align-items: start; }
}

/* Listas: filas separadas por línea fina, sin viñetas */
.dlist { display: grid; border-top: 2px solid var(--ink); }
.dlist li { padding: 14px 0; border-bottom: 1px solid var(--line); font-size: clamp(17px, 1.6vw, 19px); }

/* ---------- Quién pone qué ---------- */
.vs { display: grid; gap: 22px; }
.vs__col { padding: clamp(28px, 4vw, 48px); display: grid; gap: 22px; align-content: start; }
.vs__col--you { border: 2px solid var(--ink); background: var(--paper); }
.vs__col--us { background: var(--ink); color: var(--paper); box-shadow: 8px 8px 0 0 var(--yellow); }
.vs__head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.vs__name { font: 800 clamp(28px, 3.4vw, 40px)/1 var(--font); font-stretch: 115%; letter-spacing: -.03em; }
.vs__count { font: 800 clamp(40px, 5vw, 64px)/1 var(--font); font-stretch: 120%; color: var(--grey); }
.vs__col--us .vs__count { color: var(--yellow); }
.vs__list li { padding: 13px 0; border-top: 1px solid var(--line); font-size: 17px; }
.vs__col--us .vs__list li { border-color: var(--line-ink); }
@media (min-width: 800px) { .vs { grid-template-columns: 5fr 7fr; gap: 28px; } }

/* ---------- Por qué funciona ---------- */
.cols { display: grid; }
.cols__item { display: grid; gap: 12px; padding: 32px 0; border-top: 2px solid var(--ink); }
.cols__n { font: 800 56px/1 var(--font); font-stretch: 120%; color: var(--lila); letter-spacing: -.04em; }
@media (min-width: 900px) { .cols { grid-template-columns: repeat(3, 1fr); gap: 40px; } }

/* ---------- Marco a mano (manual p. 18): encierra una idea ---------- */
.framed { position: relative; padding: clamp(36px, 6vw, 72px); display: grid; gap: 28px; align-items: center; }
.framed__frame { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; pointer-events: none; }
.framed__text { font: 800 clamp(24px, 3.2vw, 40px)/1.12 var(--font); font-stretch: 108%; letter-spacing: -.02em; max-width: 22em; }
@media (min-width: 900px) { .framed { grid-template-columns: 1fr auto; gap: 56px; } }

/* ---------- Acordeón ---------- */
.faq { border-top: 2px solid var(--ink); max-width: 900px; }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 22px 0; cursor: pointer; list-style: none; font: 700 clamp(19px, 1.9vw, 23px)/1.25 var(--font); font-stretch: 105%; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: '+'; flex: none; width: 36px; height: 36px; display: grid; place-items: center; border: 2px solid var(--ink); font: 500 24px/1 var(--font); transition: transform .3s var(--ease), background-color .2s; }
.faq details[open] summary::after { transform: rotate(45deg); background: var(--yellow); }
.faq summary:hover::after { background: var(--yellow); }
.faq p { padding: 0 56px 24px 0; color: var(--grey); max-width: 40em; }
@supports (interpolate-size: allow-keywords) {
  .faq { interpolate-size: allow-keywords; }
  .faq details::details-content { block-size: 0; overflow: hidden; transition: block-size .35s var(--ease), content-visibility .35s allow-discrete; }
  .faq details[open]::details-content { block-size: auto; }
}

/* ---------- Banda final ---------- */
.band { background: var(--ink); color: var(--paper); text-align: center; padding-block: clamp(80px, 12vw, 148px); position: relative; overflow: hidden; }
.band .wrap { display: grid; justify-items: center; gap: 36px; }
.cta-row { display: flex; justify-content: center; margin-top: clamp(40px, 6vw, 64px); }

/* ---------- Equipo ---------- */
.team { display: grid; gap: 22px; }
@media (min-width: 720px) { .team { grid-template-columns: repeat(2, 1fr); gap: 28px; } }
.person { padding: clamp(28px, 3vw, 40px); gap: 12px; }
.person__photo { position: relative; width: min(210px, 62%); margin: 10px 0 18px 10px; }
.person__pic { position: relative; }
.person__photo img { width: 100%; aspect-ratio: 1; height: auto; border-radius: 50%; object-fit: cover; }
.person__ring { position: absolute; left: -9%; top: -8%; width: 118%; height: 116%; max-width: none; overflow: visible; pointer-events: none; }
.person__credit { font-size: 12px; color: var(--grey); margin-top: 12px; }
.person__role { font-size: 13px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--lila); }
.person__link { margin-top: 6px; justify-self: start; }
.team__note { margin-bottom: 18px; transform: rotate(-2deg); }

/* Manifiesto (Quiénes somos) */
.manifest { display: grid; gap: 32px; align-items: center; }
.manifest__fig { width: min(380px, 80%); height: auto; }
.manifest__text { font: 800 clamp(24px, 3vw, 38px)/1.15 var(--font); font-stretch: 106%; letter-spacing: -.02em; max-width: 20em; }
@media (min-width: 900px) { .manifest { grid-template-columns: 5fr 7fr; gap: 72px; } }

/* Aliados y pruebas sociales: preparados y ocultos */
.logos { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 16px; }
.logos li { display: grid; place-items: center; min-height: 96px; padding: 16px; border: 2px solid var(--ink); text-align: center; font-weight: 700; }
.logos img { max-height: 48px; width: auto; }
.quote { display: grid; gap: 20px; max-width: 860px; }
.quote blockquote { font: 800 clamp(24px, 3vw, 36px)/1.2 var(--font); }

/* ---------- Formularios ---------- */
.contact { display: grid; gap: 48px; align-items: start; }
@media (min-width: 900px) { .contact { grid-template-columns: 7fr 4fr; gap: 64px; } }
.form { background: var(--paper-2); border: 2px solid var(--ink); box-shadow: 8px 8px 0 0 var(--yellow); padding: clamp(24px, 4vw, 44px); display: grid; gap: 20px; }
.form__row { display: grid; gap: 20px; }
@media (min-width: 640px) { .form__row { grid-template-columns: 1fr 1fr; } }
.field { display: grid; gap: 8px; }
.field label { font-size: 15px; font-weight: 700; }
.optional { font-weight: 400; color: var(--grey); }
.field input, .field select, .field textarea {
  width: 100%; min-height: 52px; padding: 12px 14px; border-radius: 0;
  background: var(--white); border: 2px solid var(--ink); font-size: 16px; transition: box-shadow .2s;
}
.field textarea { min-height: 96px; resize: vertical; }
.field select { appearance: none; -webkit-appearance: none; padding-right: 44px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 14 10'%3E%3Cpath d='M1.5 2 7 8l5.5-6' fill='none' stroke='%231A1A2E' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 16px center; background-size: 14px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; box-shadow: 4px 4px 0 0 var(--lila); }
.field [aria-invalid="true"] { border-color: #B42318; box-shadow: 4px 4px 0 0 var(--coral); }
.field-error { font-size: 14px; font-weight: 600; color: #B42318; }
.field-error:empty { display: none; }
.form__note { font-size: 13px; color: var(--grey); }
.form__note a { color: var(--lila); }
.form-success { display: grid; gap: 18px; justify-items: start; padding: 12px 0; }
.form-success .hd { --hd: var(--menta); width: 64px; height: 58px; }
.form-success p { font: 800 clamp(26px, 3vw, 36px)/1.12 var(--font); font-stretch: 110%; letter-spacing: -.02em; }
.form-success:focus { outline: none; }

.direct { display: grid; gap: 22px; }
.direct__item { display: grid; gap: 6px; padding-bottom: 22px; border-bottom: 2px solid var(--ink); }
.direct__item a { font: 700 clamp(18px, 1.8vw, 21px)/1.3 var(--font); color: var(--lila); text-decoration: none; word-break: break-word; }
.direct__item a:hover { text-decoration: underline; text-underline-offset: 4px; }
.direct__k { font-size: 13px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--grey); }

/* ---------- Legal ---------- */
.legal { max-width: 760px; display: grid; gap: 48px; }
.legal section { display: grid; gap: 14px; scroll-margin-top: calc(var(--header-h) + 24px); }
.legal p { color: var(--grey); }
.legal a { color: var(--lila); }
.pending-note { font-size: 14px; padding: 12px 16px; border: 2px dashed var(--ink); color: var(--grey); }

/* ---------- Pie ---------- */
.site-footer { padding-block: clamp(40px, 6vw, 64px) 32px; font-size: 15px; }
.site-footer > .hand-line { margin-bottom: 56px; }
.site-footer a { text-decoration: none; }
.site-footer a:hover { color: var(--lila); }
.footer-grid { display: grid; gap: 40px; }
.footer-title { font-size: 12px; font-weight: 700; letter-spacing: .18em; text-transform: uppercase; color: var(--grey); margin-bottom: 14px; }
.footer-grid ul { display: grid; gap: 10px; }
.footer-student { margin-top: 22px; color: var(--grey); font-size: 14px; }
.footer-student a { color: var(--lila); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }
.footer-bottom { margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--grey); font-size: 13px; }
@media (min-width: 800px) { .footer-grid { grid-template-columns: 1.6fr 1fr 1fr 1fr; } }

/* ---------- 404 ---------- */
.notfound { display: grid; gap: 28px; justify-items: start; min-height: 50vh; align-content: center; }

/* ---------- Aparición al hacer scroll (solo con JS y sin movimiento reducido) ---------- */
.js .rv { opacity: 0; transform: translateY(22px); transition: opacity .8s var(--ease), transform .8s var(--ease); transition-delay: calc(var(--i, 0) * 90ms); }
.js .rv.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; transition-delay: 0s !important; scroll-behavior: auto !important; }
  .js .rv, .js .hero__fig, .js .hero__note { opacity: 1; transform: none; }
  .js .draw { stroke-dashoffset: 0; }
  .js .reveal { clip-path: none; }
  .card:hover, .btn:hover { transform: none; }
}

/* ---------- Aviso tras enviar un formulario ---------- */
.toast {
  position: fixed; z-index: 90; left: 50%; bottom: calc(24px + env(safe-area-inset-bottom));
  width: min(560px, calc(100vw - 2 * var(--gutter)));
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 16px;
  padding: 18px 18px 18px 22px; background: var(--ink); color: var(--paper);
  box-shadow: 8px 8px 0 0 var(--menta);
  transform: translate(-50%, 24px); opacity: 0;
  transition: transform .45s var(--ease), opacity .3s;
}
.toast.is-visible { transform: translate(-50%, 0); opacity: 1; }
.toast[data-type="error"] { box-shadow: 8px 8px 0 0 var(--coral); }
.toast__icon .hd { width: 40px; height: 36px; }
.toast__icon .stroke { stroke: var(--paper); }
.toast[data-type="ok"] .toast__icon--error, .toast[data-type="error"] .toast__icon--ok { display: none; }
.toast__text { font: 700 16px/1.4 var(--font); }
.toast__close { width: 36px; height: 36px; background: none; border: 2px solid rgba(236, 236, 234, .35); color: var(--paper); font-size: 22px; line-height: 1; cursor: pointer; }
.toast__close:hover { border-color: var(--paper); }
.toast__close:focus-visible { outline-color: var(--yellow); }

/* ---------- Frase de marca en la portada: «ideas» a mano → «solutions.» construida ----------
   Secuencia al cargar: se escribe «ideas», se dibuja la flecha y entra «solutions.» con el subrayado. */
.tagline { display: grid; gap: 6px; margin-top: 4px; }
.tg__pre { font-size: 13px; font-weight: 700; letter-spacing: .22em; text-transform: uppercase; color: var(--grey); }
.tg__row { display: flex; flex-wrap: wrap; align-items: center; column-gap: 14px; row-gap: 2px; }
.tg__idea { font: 600 clamp(38px, 4.2vw, 54px)/1 var(--hand); color: var(--ink); transform: rotate(-4deg); display: inline-block; padding-right: .1em; }
.tg__into { position: relative; display: inline-grid; justify-items: center; width: clamp(76px, 8vw, 110px); }
.tg__into > span { font-size: 12px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase; color: var(--lila); margin-bottom: -2px; }
.tg__into svg { width: 100%; height: auto; overflow: visible; }
.tg__into .stroke { stroke-width: 3; }
.tg__sol { font: 800 clamp(30px, 4vw, 52px)/1 var(--font); font-stretch: 120%; letter-spacing: -.04em; display: inline-block; }

.js .tg__pre { opacity: 0; animation: tgFade .6s ease .5s forwards; }
.js .tg__idea { clip-path: inset(-20% 100% -20% -10%); animation: tgWrite .9s cubic-bezier(.5, 0, .3, 1) .9s forwards; }
.js .tg__into { clip-path: inset(-40% 100% -40% 0); animation: tgWrite .6s var(--ease) 1.75s forwards; }
.js .tg__sol { opacity: 0; transform: translateY(10px) scale(1.18); transform-origin: left center; animation: tgSlam .55s cubic-bezier(.2, 1.4, .4, 1) 2.2s forwards; }
.js .tg__sol .hl { background-size: 0 100%; animation: tgMark .7s var(--ease) 2.65s forwards; transition: none; }
@keyframes tgFade { to { opacity: 1; } }
@keyframes tgWrite { to { clip-path: inset(-40% -10% -40% -10%); } }
@keyframes tgSlam { to { opacity: 1; transform: none; } }
@keyframes tgMark { to { background-size: 100% 100%; } }
@media (prefers-reduced-motion: reduce) {
  .js .tg__pre, .js .tg__sol { opacity: 1; transform: none; animation: none; }
  .js .tg__idea, .js .tg__into { clip-path: none; animation: none; }
  .js .tg__sol .hl { background-size: 100% 100%; animation: none; }
}
.tg__sol .hl { --hl-c: var(--menta); }

/* ---------- Textos legales ---------- */
.legal { max-width: 820px; gap: 72px; }
.legal section { gap: 16px; }
.legal .h2 { margin-bottom: 8px; }
.legal .h3 { margin-top: 20px; font-size: clamp(19px, 1.8vw, 22px); }
.legal p, .legal li, .legal td { color: var(--grey); }
.legal strong, .legal th { color: var(--ink); }
.legal__date, .legal__credit { font-size: 14px; }
.legal-nav { display: flex; flex-wrap: wrap; gap: 10px 14px; }
.legal-nav a { padding: 9px 14px; border: 2px solid var(--ink); font-weight: 700; font-size: 15px; text-decoration: none; transition: box-shadow .2s, transform .2s; }
.legal-nav a:hover { transform: translate(-2px, -2px); box-shadow: 4px 4px 0 0 var(--yellow); }
.legal-list { display: grid; gap: 10px; padding-left: 22px; list-style: decimal; }
.legal-list--dash { list-style: '– '; }
.legal-list li::marker { color: var(--lila); font-weight: 700; }
.legal-table { overflow-x: auto; border: 2px solid var(--ink); }
.legal-table table { width: 100%; min-width: 640px; border-collapse: collapse; font-size: 15px; }
.legal-table th, .legal-table td { padding: 14px 16px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
.legal-table thead th { background: var(--ink); color: var(--paper); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; }
.legal-table tbody th { font-weight: 700; width: 22%; }
.legal-table tbody tr:last-child > * { border-bottom: 0; }