/* OndaForge Technology — sistema de diseño
   Concepto: base navy profunda, una sola luz cian→violeta tomada del logotipo,
   líneas finas como cableado y flujos en forma de onda. Sin fuentes ni scripts
   de terceros (privacidad y velocidad). */

:root {
  color-scheme: dark;
  --bg: #060B18;
  --bg-2: #0A1226;
  --surface: rgba(140, 170, 255, .045);
  --surface-2: rgba(140, 170, 255, .08);
  --line: rgba(150, 180, 255, .13);
  --line-strong: rgba(150, 180, 255, .24);
  --text: #F2F6FF;
  --muted: #A9B4CD;
  --faint: #7D89A6;
  --cyan: #36D6F5;
  --violet: #8B5CF6;
  --violet-soft: #B9A3FF;
  --grad: linear-gradient(100deg, var(--cyan), var(--violet));
  --pending: #FFC864;

  --font: "Segoe UI Variable Text", "Segoe UI", -apple-system, BlinkMacSystemFont, "SF Pro Text", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Segoe UI Variable Display", "Segoe UI", -apple-system, BlinkMacSystemFont, "SF Pro Display", Roboto, "Helvetica Neue", Arial, sans-serif;

  --s-1: .25rem; --s-2: .5rem; --s-3: .75rem; --s-4: 1rem; --s-5: 1.5rem; --s-6: 2rem; --s-7: 3rem; --s-8: 4.5rem; --s-9: 7rem;
  --r-sm: 8px; --r: 14px; --r-lg: 22px;
  --container: 1180px;
  --shadow: 0 20px 60px -30px rgba(0, 0, 0, .8);
  --ease: cubic-bezier(.2, .7, .2, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 400 1.0625rem/1.65 var(--font);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; }
a { color: inherit; }
h1, h2, h3 { font-family: var(--font-display); line-height: 1.12; letter-spacing: -.022em; margin: 0; text-wrap: balance; font-weight: 650; }
h1 { font-size: clamp(2.3rem, 5.4vw, 4.1rem); }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.6rem); }
h3 { font-size: 1.2rem; letter-spacing: -.01em; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
::selection { background: rgba(54, 214, 245, .3); }

:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 6px; }
.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 { position: absolute; left: 1rem; top: -4rem; z-index: 100; background: var(--text); color: var(--bg); padding: .6rem 1rem; border-radius: var(--r-sm); font-weight: 600; text-decoration: none; }
.skip:focus { top: 1rem; }
main:focus { outline: none; }

.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: clamp(1rem, 4vw, 2rem); }
.container--narrow { max-width: 820px; }
.section { padding-block: clamp(3.5rem, 8vw, 6.5rem); }
.section--tight { padding-block: clamp(2rem, 5vw, 3.5rem); }
.section--band { background: linear-gradient(180deg, var(--bg-2), var(--bg)); border-block: 1px solid var(--line); }
.center { text-align: center; margin-top: var(--s-6); }

.eyebrow { font-size: .78rem; font-weight: 650; letter-spacing: .14em; text-transform: uppercase; color: var(--cyan); margin-bottom: var(--s-4); }
.lead { font-size: clamp(1.08rem, 1.6vw, 1.25rem); color: var(--muted); max-width: 62ch; margin-top: var(--s-4); }
.muted { color: var(--faint); font-size: .92rem; margin-top: var(--s-2); }
.grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.tag { display: inline-flex; align-items: center; font-size: .7rem; font-weight: 650; letter-spacing: .06em; text-transform: uppercase; color: var(--violet-soft); border: 1px solid rgba(139, 92, 246, .45); background: rgba(139, 92, 246, .1); padding: .15rem .5rem; border-radius: 999px; margin-right: .6rem; }
.pending { color: var(--pending); background: rgba(255, 200, 100, .08); border: 1px dashed rgba(255, 200, 100, .45); border-radius: 6px; padding: 0 .35rem; font-size: .92em; }

.icon { width: 1.5rem; height: 1.5rem; flex: none; }
.icon--sm { width: 1rem; height: 1rem; }

/* Botones */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .55rem;
  min-height: 3rem; padding: .7rem 1.35rem; border-radius: 999px;
  font: 600 1rem/1.2 var(--font); text-decoration: none; cursor: pointer; border: 1px solid transparent;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), background .2s, border-color .2s;
}
.btn--primary { background: var(--grad); color: #050914; box-shadow: 0 10px 30px -12px rgba(54, 214, 245, .55); }
.btn--primary:hover { transform: translateY(-1px); box-shadow: 0 14px 36px -12px rgba(139, 92, 246, .7); }
.btn--ghost { border-color: var(--line-strong); color: var(--text); background: var(--surface); }
.btn--ghost:hover { border-color: var(--cyan); background: var(--surface-2); }
.btn__icon { width: 1.1rem; height: 1.1rem; transition: transform .2s var(--ease); }
.btn:hover .btn__icon { transform: translateX(3px); }
.actions { display: flex; flex-wrap: wrap; gap: var(--s-3); margin-top: var(--s-6); }
.actions--center { justify-content: center; }

/* Cabecera */
.header { position: sticky; top: 0; z-index: 50; border-bottom: 1px solid transparent; transition: background .3s, border-color .3s, backdrop-filter .3s; }
.header.is-scrolled { background: rgba(6, 11, 24, .82); backdrop-filter: blur(14px); border-color: var(--line); }
.header__inner { display: flex; align-items: center; justify-content: space-between; min-height: 4.5rem; gap: var(--s-4); }
.header__brand { text-decoration: none; }
.header__nav { display: flex; align-items: center; gap: var(--s-6); }
.header__nav ul { display: flex; gap: var(--s-5); }
.header__nav a:not(.btn) { color: var(--muted); text-decoration: none; font-weight: 500; font-size: .98rem; padding: .3rem 0; border-bottom: 1px solid transparent; }
.header__nav a:not(.btn):hover, .header__nav a[aria-current="page"] { color: var(--text); border-color: var(--cyan); }
.header__nav .btn { min-height: 2.6rem; padding: .5rem 1.1rem; font-size: .95rem; }
.header__toggle { display: none; background: none; border: 1px solid var(--line-strong); color: var(--text); border-radius: 10px; width: 2.75rem; height: 2.75rem; align-items: center; justify-content: center; cursor: pointer; }
.header__toggle .icon--close { display: none; }

.logo { display: inline-flex; align-items: center; gap: .55rem; }
.logo__mark { height: 2.4rem; width: auto; }
.logo__word { height: 1.55rem; width: auto; }
.footer .logo__mark { height: 3rem; }
.footer .logo__word { height: 1.9rem; }
.brand-lockup { display: block; width: min(100%, 300px); height: auto; margin: 0 auto var(--s-5); }

/* Héroe */
.hero { position: relative; overflow: hidden; padding-block: clamp(3rem, 7vw, 6rem) clamp(3.5rem, 8vw, 6.5rem); }
.hero__bg {
  position: absolute; inset: -20% -10% auto; height: 120%; pointer-events: none;
  background:
    radial-gradient(40% 45% at 78% 35%, rgba(139, 92, 246, .18), transparent 70%),
    radial-gradient(35% 40% at 60% 55%, rgba(54, 214, 245, .12), transparent 70%);
}
.hero__inner { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(2rem, 5vw, 4rem); align-items: center; }
.hero h1 { max-width: 15ch; }
.markets { display: flex; flex-wrap: wrap; gap: .4rem .5rem; align-items: center; margin-top: var(--s-7); font-size: .9rem; color: var(--muted); }
.markets li:not(.markets__label) { border: 1px solid var(--line); border-radius: 999px; padding: .2rem .75rem; background: var(--surface); }
.markets__label { width: 100%; color: var(--faint); font-size: .8rem; letter-spacing: .04em; margin-bottom: .2rem; }

.hero__visual { margin: 0; position: relative; }
.hero__visual figcaption { display: flex; align-items: center; justify-content: center; margin-top: var(--s-3); font-size: .85rem; color: var(--faint); }
.dg { display: block; width: 100%; height: auto; border: 1px solid var(--line); border-radius: var(--r-lg); background: linear-gradient(160deg, rgba(10, 18, 38, .9), rgba(6, 11, 24, .9)); box-shadow: var(--shadow); }
.dg__grid line { stroke: rgba(150, 180, 255, .055); stroke-width: 1; }
.dg__wire { fill: none; stroke: rgba(150, 180, 255, .28); stroke-width: 2; }
.dg__pulse { fill: none; stroke: url(#dg-g); stroke-width: 3; stroke-linecap: round; stroke-dasharray: 14 86; stroke-dashoffset: 100; animation: pulse 2.6s var(--ease) infinite; animation-delay: var(--d, 0s); }
@keyframes pulse { to { stroke-dashoffset: 0; } }
.dg__box rect { fill: #0D1730; stroke: var(--line-strong); stroke-width: 1.2; }
.dg__box text, .dg__hub text { fill: var(--text); font: 600 15px var(--font); }
.dg__box--ai rect { stroke: rgba(139, 92, 246, .7); fill: rgba(139, 92, 246, .12); }
.dg__hub circle { fill: #0B1530; stroke: url(#dg-g); stroke-width: 2.5; }
.dg__hub text { font-size: 19px; font-weight: 700; }

/* Encabezados de sección */
.section-head { max-width: 760px; margin-bottom: clamp(2rem, 4vw, 3rem); }
.group-title { font-size: 1.35rem; margin-bottom: var(--s-5); color: var(--text); }

/* Pilares y tarjetas */
.pillars { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--s-4); }
.pillar, .card {
  position: relative; display: flex; flex-direction: column; gap: var(--s-3);
  padding: clamp(1.4rem, 2.5vw, 1.9rem); border: 1px solid var(--line); border-radius: var(--r);
  background: var(--surface); text-decoration: none; transition: border-color .25s, background .25s, transform .25s var(--ease);
}
.pillar p, .card__text { color: var(--muted); font-size: .98rem; }
.card:hover, .pillar:hover { border-color: rgba(54, 214, 245, .45); background: var(--surface-2); }
.card:hover { transform: translateY(-2px); }
.card__icon { display: inline-grid; place-items: center; width: 2.9rem; height: 2.9rem; border-radius: 12px; color: var(--cyan); background: rgba(54, 214, 245, .08); border: 1px solid rgba(54, 214, 245, .25); }
.card__icon--lg { width: 3.4rem; height: 3.4rem; margin-bottom: var(--s-4); }
.card__icon--lg .icon { width: 1.8rem; height: 1.8rem; }
.card__title { font-size: 1.15rem; }
.card__more { margin-top: auto; padding-top: var(--s-2); display: inline-flex; align-items: center; gap: .4rem; color: var(--cyan); font-weight: 600; font-size: .95rem; }
.pillar__links { margin-top: auto; padding-top: var(--s-3); border-top: 1px solid var(--line); display: grid; gap: .35rem; }
.pillar__links a { display: inline-flex; align-items: center; gap: .4rem; color: var(--text); text-decoration: none; font-size: .93rem; font-weight: 550; }
.pillar__links a:hover { color: var(--cyan); }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s-4); }

/* Antes y después */
.shift { border: 1px solid var(--line); border-radius: var(--r-lg); overflow: hidden; background: rgba(6, 11, 24, .5); }
.shift__head { display: grid; grid-template-columns: 1fr 3rem 1fr; padding: .9rem clamp(1rem, 3vw, 2rem); font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: var(--faint); border-bottom: 1px solid var(--line); }
.shift__head span:last-child { grid-column: 3; color: var(--cyan); }
.shift__row { display: grid; grid-template-columns: 1fr 3rem 1fr; align-items: center; padding: 1.05rem clamp(1rem, 3vw, 2rem); border-bottom: 1px solid var(--line); }
.shift__row:last-child { border-bottom: 0; }
.shift__before { color: var(--faint); text-decoration: line-through; text-decoration-color: rgba(125, 137, 166, .5); }
.shift__arrow { color: var(--violet-soft); display: grid; place-items: center; }
.shift__after { color: var(--text); font-weight: 550; }

/* Casos */
.cases { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s-4); }
.case { display: flex; flex-direction: column; gap: var(--s-3); padding: 1.6rem; border: 1px solid var(--line); border-radius: var(--r); background: var(--surface); }
.case p { color: var(--muted); font-size: .98rem; }
.case__meta { display: flex; align-items: center; flex-wrap: wrap; gap: .3rem; font-size: .85rem; color: var(--faint) !important; }
.case__link { margin-top: auto; display: inline-flex; align-items: center; gap: .4rem; color: var(--cyan); font-weight: 600; text-decoration: none; font-size: .93rem; }

/* Proceso */
.process { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: var(--s-4); counter-reset: s; position: relative; }
.process::before { content: ""; position: absolute; left: 0; right: 0; top: 1.15rem; height: 1px; background: linear-gradient(90deg, transparent, var(--line-strong) 10%, var(--line-strong) 90%, transparent); }
.process__step { position: relative; padding-top: 3.2rem; }
.process__num { position: absolute; top: 0; left: 0; display: grid; place-items: center; width: 2.3rem; height: 2.3rem; border-radius: 50%; font: 700 .85rem var(--font); color: #050914; background: var(--grad); box-shadow: 0 0 0 6px var(--bg); }
.process h3 { margin-bottom: var(--s-2); }
.process p { color: var(--muted); font-size: .96rem; }

/* Diferenciadores */
.diffs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--s-5); }
.diff { padding-top: var(--s-4); border-top: 1px solid var(--line-strong); }
.diff__icon { color: var(--cyan); margin-bottom: var(--s-3); }
.diff h3 { margin-bottom: var(--s-2); }
.diff p { color: var(--muted); font-size: .97rem; }

/* CTA */
.cta { position: relative; overflow: hidden; text-align: center; padding: clamp(2.5rem, 6vw, 4.5rem) clamp(1.2rem, 5vw, 4rem); border: 1px solid var(--line-strong); border-radius: var(--r-lg); background: linear-gradient(160deg, #0C1633, #090F22); }
.cta__glow { position: absolute; inset: auto 10% -60% 10%; height: 100%; background: radial-gradient(50% 50% at 50% 0%, rgba(139, 92, 246, .35), transparent 70%); pointer-events: none; }
.cta h2, .cta p, .cta .btn { position: relative; }
.cta p { color: var(--muted); max-width: 56ch; margin: var(--s-4) auto var(--s-6); font-size: 1.1rem; }

/* Páginas interiores */
.page-hero { position: relative; padding-block: clamp(2.5rem, 6vw, 4.5rem) clamp(1.5rem, 4vw, 3rem); border-bottom: 1px solid var(--line); background: radial-gradient(50% 80% at 85% 0%, rgba(139, 92, 246, .12), transparent 70%); }
.page-hero--center { text-align: center; border: 0; padding-block: clamp(4rem, 12vw, 8rem); }
.page-hero--center .lead { margin-inline: auto; }
.page-hero__grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: end; }
.crumbs ol { display: flex; flex-wrap: wrap; gap: .4rem; font-size: .85rem; color: var(--faint); margin-bottom: var(--s-5); }
.crumbs li + li::before { content: "/"; margin-right: .4rem; color: var(--line-strong); }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--cyan); }
.explain { padding: 1.5rem; border: 1px solid var(--line); border-left: 2px solid var(--cyan); border-radius: var(--r); background: var(--surface); }
.explain__title { font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--cyan); margin-bottom: var(--s-3); font-weight: 650; }
.explain p { color: var(--muted); }
.problems { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--s-4); }
.problem { padding: 1.4rem; border-radius: var(--r); background: var(--surface); border: 1px solid var(--line); }
.problem h3 { margin-bottom: var(--s-2); font-size: 1.08rem; }
.problem p { color: var(--muted); font-size: .97rem; }
.split { display: grid; grid-template-columns: 1fr 1.2fr; gap: clamp(1.5rem, 5vw, 4rem); align-items: start; }
.checklist { display: grid; gap: .1rem; }
.checklist li { display: flex; gap: .75rem; padding: .8rem 0; border-bottom: 1px solid var(--line); }
.checklist__icon { color: var(--cyan); width: 1.25rem; height: 1.25rem; margin-top: .2rem; }

.flows { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 320px), 1fr)); gap: var(--s-4); }
.flow { margin: 0; padding: 1.5rem; border: 1px solid var(--line); border-radius: var(--r); background: var(--surface); }
.flow__caption { display: flex; flex-wrap: wrap; align-items: center; gap: .3rem; font-weight: 650; margin-bottom: var(--s-5); }
.flow__steps { position: relative; display: grid; gap: var(--s-4); padding-left: 1.6rem; }
.flow__steps::before { content: ""; position: absolute; left: .42rem; top: .5rem; bottom: .5rem; width: 2px; background: linear-gradient(var(--cyan), var(--violet)); opacity: .55; border-radius: 2px; }
.flow__node { position: relative; color: var(--muted); }
.flow__dot { position: absolute; left: -1.6rem; top: .38rem; width: .9rem; height: .9rem; border-radius: 50%; background: var(--bg); border: 2px solid var(--cyan); }
.flow__node:last-child .flow__dot { border-color: var(--violet); background: var(--violet); }

.limits { padding: 1.6rem 1.8rem; border-radius: var(--r); border: 1px solid rgba(255, 200, 100, .28); background: rgba(255, 200, 100, .04); }
.limits h2 { font-size: 1.25rem; margin-bottom: var(--s-4); }
.limits li { position: relative; padding-left: 1.2rem; color: var(--muted); margin-top: .5rem; }
.limits li::before { content: ""; position: absolute; left: 0; top: .7em; width: .45rem; height: .45rem; border-radius: 50%; background: var(--pending); }

.note-block { padding: 2rem; border: 1px solid var(--line); border-radius: var(--r); background: var(--surface); }
.note-block h2 { font-size: 1.4rem; margin-bottom: var(--s-3); }
.note-block p { color: var(--muted); }

/* FAQ */
.faq { border-top: 1px solid var(--line); }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__item summary { display: flex; justify-content: space-between; align-items: center; gap: var(--s-4); padding: 1.15rem 0; cursor: pointer; font-weight: 600; font-size: 1.05rem; list-style: none; }
.faq__item summary::-webkit-details-marker { display: none; }
.faq__chev { color: var(--cyan); transition: transform .25s var(--ease); }
.faq__item[open] .faq__chev { transform: rotate(180deg); }
.faq__item p { color: var(--muted); padding-bottom: 1.2rem; max-width: 70ch; }

/* Texto legal y prosa */
.prose h2 { font-size: 1.35rem; margin: var(--s-6) 0 var(--s-3); }
.prose h2:first-child { margin-top: 0; }
.prose p { color: var(--muted); margin-bottom: var(--s-3); }
.draft { margin-top: var(--s-4); color: var(--pending); font-size: .95rem; }

/* Contacto */
.contact { display: grid; grid-template-columns: 1.5fr 1fr; gap: clamp(1.5rem, 5vw, 3.5rem); align-items: start; }
.contact__side { display: grid; gap: var(--s-4); }
.steps { counter-reset: n; display: grid; gap: .7rem; }
.steps li { counter-increment: n; position: relative; padding-left: 2rem; color: var(--muted); }
.steps li::before { content: counter(n); position: absolute; left: 0; top: .1rem; width: 1.4rem; height: 1.4rem; display: grid; place-items: center; border-radius: 50%; font-size: .75rem; font-weight: 700; color: #050914; background: var(--grad); }
.form { display: grid; gap: var(--s-4); padding: clamp(1.25rem, 3vw, 2rem); border: 1px solid var(--line); border-radius: var(--r-lg); background: var(--surface); }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-4); }
.field { display: grid; gap: .4rem; }
.field label { font-weight: 600; font-size: .93rem; }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; font-size: 1rem; color: var(--text); background: rgba(6, 11, 24, .7);
  border: 1px solid var(--line-strong); border-radius: 10px; padding: .75rem .9rem; transition: border-color .2s, box-shadow .2s;
}
.field textarea { resize: vertical; min-height: 9rem; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(54, 214, 245, .2); }
.field [aria-invalid="true"] { border-color: #FF7A8A; }
.field__error { color: #FF9AA6; font-size: .88rem; }
.field--check { grid-template-columns: auto 1fr; align-items: start; gap: .7rem; }
.field--check input { width: 1.2rem; height: 1.2rem; margin-top: .2rem; accent-color: var(--cyan); }
.field--check label { font-weight: 400; color: var(--muted); }
.field--check a { color: var(--cyan); }
.field--hp { position: absolute; left: -9999px; }
.form .btn { justify-self: start; }
.form .btn[disabled] { opacity: .6; cursor: progress; }
.form__status:empty { display: none; }
.form__status { padding: .8rem 1rem; border-radius: 10px; font-size: .95rem; border: 1px solid var(--line-strong); }
.form__status[data-state="ok"] { border-color: rgba(54, 214, 245, .5); background: rgba(54, 214, 245, .07); }
.form__status[data-state="error"], .form__status[data-state="fix"] { border-color: rgba(255, 122, 138, .5); background: rgba(255, 122, 138, .07); }
.form__status[data-state="warn"] { border-color: rgba(255, 200, 100, .5); background: rgba(255, 200, 100, .07); color: var(--pending); }

/* Pie */
.footer { border-top: 1px solid var(--line); background: #050913; padding-top: var(--s-8); margin-top: var(--s-6); }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: var(--s-6); }
.footer__brand p { color: var(--muted); margin-top: var(--s-4); max-width: 34ch; font-size: .95rem; }
.footer__title { font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--faint); margin: 0 0 var(--s-3); font-weight: 650; }
.footer__title:not(:first-child) { margin-top: var(--s-5); }
.footer ul { display: grid; gap: .45rem; }
.footer ul a { color: var(--muted); text-decoration: none; font-size: .94rem; }
.footer ul a:hover { color: var(--cyan); }
.footer__bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--s-3); padding-block: var(--s-6); margin-top: var(--s-7); border-top: 1px solid var(--line); color: var(--faint); font-size: .85rem; }

/* Responsive */
@media (max-width: 1080px) {
  .pillars, .diffs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .process { grid-template-columns: repeat(3, minmax(0, 1fr)); row-gap: var(--s-6); }
  .process::before { display: none; }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .hero__inner, .page-hero__grid, .split, .contact { grid-template-columns: 1fr; }
  .hero h1 { max-width: 18ch; }
  .cards, .cases, .problems { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .header__toggle { display: inline-flex; }
  .header__nav {
    position: fixed; inset: 4.5rem 0 auto 0; flex-direction: column; align-items: stretch; gap: var(--s-4);
    padding: var(--s-5) clamp(1rem, 4vw, 2rem) var(--s-6); background: rgba(6, 11, 24, .97); backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line); transform: translateY(-110%); visibility: hidden; transition: transform .3s var(--ease), visibility .3s;
  }
  .header__nav ul { flex-direction: column; gap: 0; }
  .header__nav ul a { display: block; padding: .9rem 0 !important; border-bottom: 1px solid var(--line) !important; font-size: 1.08rem !important; }
  .header.is-open .header__nav { transform: none; visibility: visible; }
  .header.is-open { background: rgba(6, 11, 24, .97); }
  .header.is-open .icon--open { display: none; }
  .header.is-open .icon--close { display: block; }
}
@media (max-width: 640px) {
  body { font-size: 1rem; }
  .pillars, .diffs, .cards, .cases, .problems, .process, .form__row { grid-template-columns: 1fr; }
  .footer__grid { grid-template-columns: 1fr; }
  .shift__head { display: none; }
  .shift__row { grid-template-columns: 1fr; gap: .35rem; }
  .shift__arrow { justify-content: start; transform: rotate(90deg); width: 1.5rem; }
  .actions .btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .dg__pulse { display: none; }
}

@media (max-width: 360px) {
  .header .logo__mark { height: 2rem; }
  .header .logo__word { height: 1.25rem; }
}

/* Enlaces a las demos (portada) */
.demo-links { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--s-3); }
.demo-link { display: flex; align-items: center; gap: .8rem; height: 100%; padding: 1rem; border: 1px solid var(--line); border-radius: var(--r); background: var(--surface); text-decoration: none; transition: border-color .2s, background .2s; }
.demo-link:hover { border-color: rgba(54, 214, 245, .45); background: var(--surface-2); }
.demo-link > span:nth-child(2) { display: grid; gap: .15rem; flex: 1; min-width: 0; }
.demo-link b { font-size: .95rem; }
.demo-link > span:nth-child(2) > span { color: var(--muted); font-size: .85rem; line-height: 1.35; }
.demo-link .icon--sm { color: var(--cyan); }
@media (max-width: 1080px) { .demo-links { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .demo-links { grid-template-columns: 1fr; } }

/* Ajustes táctiles para móvil */
.pillar__links a, .case__link { min-height: 2.75rem; padding-block: .45rem; }
.tag { font-size: .75rem; }
.field--check input { width: 1.4rem; height: 1.4rem; margin-top: .1rem; }
.field--check label { padding-block: .15rem; }
.field--check a { display: inline-block; padding-block: .35rem; }
.crumbs a { display: inline-block; padding-block: .3rem; }

/* Diagrama y etiquetas en móvil */
.tag { white-space: nowrap; }
.hero__visual figcaption { flex-wrap: wrap; gap: .4rem; text-align: center; }
@media (max-width: 640px) { .dg__box text { font-size: 16px; } .dg__hub text { font-size: 21px; } }

/* Selector de idioma (desplegable) */
.langs { position: relative; }
.langs summary { display: inline-flex; align-items: center; gap: .35rem; min-height: 2.4rem; padding: .35rem .75rem; border: 1px solid var(--line-strong); border-radius: 999px; color: var(--text); font-size: .92rem; font-weight: 600; cursor: pointer; list-style: none; user-select: none; }
.langs summary::-webkit-details-marker { display: none; }
.langs summary:hover { border-color: var(--cyan); }
.langs__chev { width: 1rem; height: 1rem; color: var(--cyan); transition: transform .2s var(--ease); }
.langs[open] .langs__chev { transform: rotate(180deg); }
.langs ul { position: absolute; top: calc(100% + .4rem); right: 0; z-index: 60; display: grid; gap: .15rem; min-width: 10rem; padding: .35rem; border: 1px solid var(--line-strong); border-radius: 12px; background: #0B1530; box-shadow: var(--shadow); }
.header__nav .langs a { display: block; padding: .6rem .8rem; border-radius: 8px; border: 0; color: var(--muted); font-size: .95rem; font-weight: 550; text-decoration: none; }
.header__nav .langs a:hover, .header__nav .langs a:focus-visible { color: var(--text); background: var(--surface-2); border: 0; }
@media (max-width: 900px) {
  .header__nav .langs { align-self: flex-start; }
  .langs ul { position: static; margin-top: .4rem; box-shadow: none; }
  .header__nav .langs ul { flex-direction: column; }
  .header__nav .langs a { border-bottom: 0 !important; padding: .7rem .8rem !important; font-size: 1rem !important; }
}