/* ============================================================
   Sakura Homes — sistema de diseño
   Tipografía original: Hanken Grotesk (títulos) + Inter (texto)
   ============================================================ */

:root {
  --ink: #282828;
  --ink-900: #0d0d0d;
  --ink-700: #3a3a3a;
  --muted: #6f6669;      /* grises con una pizca del rosa de marca, no azulados */
  --muted-2: #514b4d;
  --white: #fff;
  --paper: #f7f5f6;
  --mist: #faf6f8;
  --line: #e8e3e6;
  --sakura: #ffafd8;
  --sakura-deep: #b8497b;

  --font-title: "Hanken Grotesk", "Hanken Grotesk Fallback", system-ui, sans-serif;
  --font-body: "Inter", "Inter Fallback", system-ui, -apple-system, sans-serif;

  --container: 1180px;
  --radius: 4px;
  --ease: cubic-bezier(.23, 1, .32, 1);        /* salida fuerte, para entradas */
  --ease-in-out: cubic-bezier(.77, 0, .175, 1); /* movimiento en pantalla */
  --dur: .62s;
  --ui: .18s;                                   /* interacciones: botón, chip, enlace */
}

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

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

body {
  margin: 0;
  background: var(--white);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }

/* ---------- Tipografía ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-title);
  font-weight: 600;
  letter-spacing: -.03em;
  line-height: 1.02;
  margin: 0;
  color: var(--ink);
}
h1 { font-size: clamp(2.6rem, 6.2vw, 4.6rem); }
h2 { font-size: clamp(2rem, 4.2vw, 3.1rem); letter-spacing: -.025em; }
h3 { font-size: clamp(1.25rem, 2vw, 1.6rem); letter-spacing: -.02em; line-height: 1.15; }
p { margin: 0 0 1.1em; }
.lead { font-size: clamp(1rem, 1.35vw, 1.12rem); color: var(--muted-2); max-width: 62ch; }

.eyebrow {
  font-family: var(--font-body);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--sakura-deep);
  margin: 0 0 1rem;
  display: flex;
  align-items: center;
  gap: .7rem;
}
.eyebrow::before {
  content: ""; width: 26px; height: 1px; background: var(--sakura); flex: none;
}
.eyebrow--center { justify-content: center; }
.on-dark .eyebrow, .eyebrow--light { color: var(--sakura); }

/* ---------- Layout ---------- */
.container { width: min(100% - 3rem, var(--container)); margin-inline: auto; }
.section { padding: clamp(4.5rem, 9vw, 8rem) 0; }
.section--paper { background: var(--paper); }
.section--mist { background: var(--mist); }
.section--dark { background: var(--ink-900); color: #e9e9e9; }
.section--dark h2, .section--dark h3 { color: #fff; }
.section--tight { padding-block: clamp(3rem, 6vw, 5rem); }
.section-head { max-width: 760px; margin-bottom: clamp(2.5rem, 4vw, 3.6rem); }
.section-head--center { margin-inline: auto; text-align: center; }
.section-head--center .eyebrow { justify-content: center; }

.grid { display: grid; gap: clamp(1.5rem, 2.5vw, 2rem); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 290px), 1fr)); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .65rem;
  padding: .95rem 1.75rem;
  border-radius: 100px;
  font-size: .78rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
  border: 1px solid var(--ink);
  background: var(--ink); color: #fff;
  cursor: pointer;
  transition: transform var(--ui) var(--ease), background var(--ui) var(--ease),
              color var(--ui) var(--ease), border-color var(--ui) var(--ease),
              box-shadow var(--ui) var(--ease);
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: scale(.97); }
.btn svg { transition: transform var(--ui) var(--ease); }
@media (hover: hover) and (pointer: fine) {
  .btn:hover { transform: translateY(-1px); box-shadow: 0 10px 24px -8px rgba(0,0,0,.28); }
  .btn:hover svg { transform: translateX(3px); }
}
.btn--ghost { background: transparent; color: var(--ink); }
.btn--ghost:hover { background: var(--ink); color: #fff; }
.btn--light { background: transparent; color: #fff; border-color: rgba(255,255,255,.55); }
.btn--light:hover { background: #fff; color: var(--ink); border-color: #fff; }
.btn--solid-light { background: #fff; color: var(--ink); border-color: #fff; }
.btn-row { display: flex; flex-wrap: wrap; gap: .9rem; align-items: center; }

.link-arrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-size: .76rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  padding-bottom: .3rem; border-bottom: 1px solid currentColor;
  transition: gap var(--ui) var(--ease), color var(--ui) var(--ease);
  touch-action: manipulation;
}
@media (hover: hover) and (pointer: fine) {
  .link-arrow:hover { gap: .85rem; color: var(--sakura-deep); }
}
.link-arrow:active { color: var(--sakura-deep); }

/* ---------- Header ---------- */
.header {
  position: fixed; inset: 0 0 auto; z-index: 100;
  padding: 1.4rem 0;
  transition: padding .4s var(--ease), background .4s var(--ease), box-shadow .4s var(--ease);
}
.header__inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.header__logo img { height: 30px; width: auto; transition: height .4s var(--ease); }
.header__logo .logo--dark { display: none; }
.header.is-scrolled {
  padding: .75rem 0;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(140%) blur(14px);
  box-shadow: 0 1px 0 var(--line);
}
.header.is-scrolled .header__logo img { height: 26px; }
.header.is-scrolled .logo--light { display: none; }
.header.is-scrolled .logo--dark { display: block; }
.header.is-scrolled .nav a { color: var(--ink); }
.header.is-scrolled .nav-toggle span { background: var(--ink); }
.header.is-scrolled .btn--light { color: var(--ink); border-color: var(--ink); }
.header.is-scrolled .btn--light:hover { background: var(--ink); color: #fff; }
/* Páginas con hero claro */
.header--solid { background: rgba(255,255,255,.92); backdrop-filter: saturate(140%) blur(14px); box-shadow: 0 1px 0 var(--line); }

.nav { display: flex; align-items: center; gap: 2rem; }
.nav a {
  color: #fff; font-size: .8rem; font-weight: 500; letter-spacing: .06em;
  position: relative; padding: .25rem 0;
  transition: color .3s var(--ease), opacity .3s var(--ease);
}
.nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: var(--sakura); transition: width .35s var(--ease);
}
.nav a:hover::after, .nav a[aria-current="page"]::after { width: 100%; }
.nav a[aria-current="page"] { color: var(--sakura); }
.header.is-scrolled .nav a[aria-current="page"] { color: var(--sakura-deep); }

.nav-toggle {
  display: none; width: 44px; height: 38px; border: 0; background: none; cursor: pointer;
  flex-direction: column; justify-content: center; gap: 6px; padding: 0;
}
.nav-toggle span { display: block; height: 2px; width: 26px; background: #fff; transition: transform .35s var(--ease), opacity .25s; margin-left: auto; }
.nav-toggle span:nth-child(2) { width: 18px; }
body.nav-open .nav-toggle span:nth-child(1) { transform: translateY(8px) rotate(45deg); width: 26px; }
body.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
body.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); width: 26px; }

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .nav {
    position: fixed; inset: 0; background: var(--ink-900);
    flex-direction: column; justify-content: center; gap: 1.6rem;
    opacity: 0; pointer-events: none; transform: translateY(-8px);
    transition: opacity .4s var(--ease), transform .4s var(--ease);
  }
  .nav a { color: #fff !important; font-size: 1.6rem; font-family: var(--font-title); letter-spacing: -.02em; }
  .nav a.btn { font-size: .78rem; font-family: var(--font-body); letter-spacing: .12em; margin-top: .8rem; }
  body.nav-open { overflow: hidden; }
  body.nav-open .nav { opacity: 1; pointer-events: auto; transform: none; }
  body.nav-open .nav-toggle span { background: #fff !important; position: relative; z-index: 2; }
  body.nav-open .header__logo { position: relative; z-index: 2; }
  body.nav-open .header__logo .logo--light { display: block !important; }
  body.nav-open .header__logo .logo--dark { display: none !important; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative; min-height: 100svh; display: flex; align-items: flex-end;
  padding: 9rem 0 clamp(3rem, 6vw, 5rem); overflow: hidden; background: var(--ink-900);
}
.hero__media { position: absolute; inset: 0; z-index: 0; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; transform: scale(1.08); animation: heroZoom 14s var(--ease) forwards; }
@keyframes heroZoom { to { transform: scale(1); } }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(8,8,10,.66) 0%, rgba(8,8,10,.44) 38%, rgba(8,8,10,.88) 100%);
}
.hero__inner { position: relative; z-index: 2; color: #fff; }
.hero h1 { color: #fff; max-width: 16ch; }
.hero__sub { color: rgba(255,255,255,.86); max-width: 54ch; margin-top: 1.6rem; font-size: clamp(1rem, 1.3vw, 1.1rem); }
.hero--inner { min-height: 68svh; align-items: flex-end; }
.hero--inner h1 { max-width: 20ch; font-size: clamp(2.3rem, 5vw, 3.9rem); }

.hero__scroll {
  position: absolute; right: max(1.5rem, calc((100vw - var(--container)) / 2)); bottom: 1.6rem;
  z-index: 2; color: rgba(255,255,255,.55); font-size: .62rem; letter-spacing: .2em; text-transform: uppercase;
  display: flex; flex-direction: column; align-items: center; gap: .6rem;
}
.hero__scroll i { display: block; width: 1px; height: 40px; background: linear-gradient(rgba(255,255,255,.7), transparent); animation: scrollCue 2.2s infinite; }
@keyframes scrollCue { 0% { transform: scaleY(0); transform-origin: top; } 50% { transform: scaleY(1); transform-origin: top; } 51% { transform-origin: bottom; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* Barra de datos bajo el hero */
.hero__stats {
  position: relative; z-index: 2; margin-top: clamp(2.5rem, 5vw, 4rem);
  display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1.5rem; border-top: 1px solid rgba(255,255,255,.22); padding-top: 1.6rem;
}
.hero__stats div { color: #fff; }
.hero__stats b { display: block; font-family: var(--font-title); font-size: clamp(1.7rem, 3vw, 2.4rem); font-weight: 600; letter-spacing: -.03em; }
.hero__stats b span { font: inherit; letter-spacing: inherit; text-transform: none; color: inherit; }
.hero__stats > div > span { display: block; font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; color: rgba(255,255,255,.62); line-height: 1.4; margin-top: .2rem; }
@media (max-width: 900px) {
  .hero__stats { grid-template-columns: repeat(2, 1fr); gap: 1.1rem; }
  .hero__scroll { display: none; }
}

/* ---------- Tarjetas de modelo ---------- */
.model-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease), border-color .5s var(--ease);
}
@media (hover: hover) and (pointer: fine) {
  .model-card:hover { transform: translateY(-4px); border-color: var(--ink); }
}
.model-card__media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--paper); }
.model-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.model-card:hover .model-card__media img { transform: scale(1.06); }
.model-card__tag {
  position: absolute; top: 1rem; left: 1rem; z-index: 2;
  background: rgba(255,255,255,.94); color: var(--ink);
  font-size: .64rem; letter-spacing: .14em; text-transform: uppercase; font-weight: 600;
  padding: .4rem .75rem; border-radius: 100px;
}
.model-card__body { padding: 1.6rem; display: flex; flex-direction: column; gap: .8rem; flex: 1; }
.model-card__specs { display: flex; flex-wrap: wrap; gap: .5rem; margin: 0; padding: 0; list-style: none; }
.model-card__specs li {
  font-size: .7rem; letter-spacing: .08em; text-transform: uppercase; color: var(--muted);
  border: 1px solid var(--line); border-radius: 100px; padding: .28rem .7rem;
}
.model-card p { font-size: .93rem; color: var(--muted-2); margin: 0; }
.model-card__foot { margin-top: auto; padding-top: 1.1rem; border-top: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.price { font-family: var(--font-title); font-size: 1.35rem; font-weight: 600; letter-spacing: -.02em; }
.price small { display: block; font-family: var(--font-body); font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); font-weight: 500; }

/* ---------- Split (imagen + texto) ---------- */
.split { display: grid; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); }
.split__media { position: relative; overflow: hidden; border-radius: var(--radius); aspect-ratio: 4 / 3; }
.split__media img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.split__media:hover img { transform: scale(1.04); }
.split--reverse .split__media { order: 2; }
@media (max-width: 780px) { .split--reverse .split__media { order: 0; } }

.check-list { list-style: none; margin: 1.6rem 0 0; padding: 0; display: grid; gap: .85rem; }
.check-list li { display: flex; gap: .8rem; align-items: flex-start; font-size: .95rem; color: var(--muted-2); }
.check-list svg { flex: none; margin-top: .3rem; color: var(--sakura-deep); }
.section--dark .check-list li { color: rgba(255,255,255,.78); }
.section--dark .check-list svg { color: var(--sakura); }

/* ---------- Pilares / features ---------- */
.feature { padding: 2rem 0 0; border-top: 2px solid var(--ink); }
.feature__num { font-size: .7rem; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); margin-bottom: .9rem; display: block; }
.feature h3 { margin-bottom: .7rem; }
.feature p { font-size: .95rem; color: var(--muted-2); margin: 0; }
.feature img.icon { width: 46px; height: auto; margin-bottom: 1.1rem; }
.section--dark .feature { border-color: var(--sakura); }
.section--dark .feature p { color: rgba(255,255,255,.72); }
.section--dark .feature__num { color: rgba(255,255,255,.5); }

/* ---------- Proceso ---------- */
.steps { counter-reset: step; display: grid; gap: 0; }
.step {
  display: grid; grid-template-columns: 90px 1fr; gap: clamp(1.2rem, 3vw, 3rem);
  padding: clamp(1.8rem, 3vw, 2.6rem) 0; border-top: 1px solid var(--line);
  transition: background .4s var(--ease);
}
.step:last-child { border-bottom: 1px solid var(--line); }
.step:hover { background: rgba(255,175,216,.06); }
.step__n { font-family: var(--font-title); font-size: clamp(1.8rem, 3vw, 2.4rem); font-weight: 600; color: var(--sakura); letter-spacing: -.03em; }
.step h3 { margin-bottom: .55rem; }
.step p { color: var(--muted-2); font-size: .95rem; margin: 0; max-width: 68ch; }
@media (max-width: 620px) { .step { grid-template-columns: 1fr; gap: .4rem; } }

/* ---------- Precios ---------- */
.price-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 2rem; display: flex; flex-direction: column; gap: 1rem;
  transition: transform .45s var(--ease), box-shadow .45s var(--ease);
}
@media (hover: hover) and (pointer: fine) {
  .price-card:hover { transform: translateY(-4px); border-color: var(--ink); }
}
.price-card--feature { background: var(--ink-900); color: #fff; border-color: var(--ink-900); }
.price-card--feature h3, .price-card--feature .price-card__value { color: #fff; }
.price-card--feature li { color: rgba(255,255,255,.75); }
.price-card__value { font-family: var(--font-title); font-size: clamp(2.4rem, 5vw, 3.2rem); font-weight: 600; letter-spacing: -.04em; line-height: 1; }
.price-card__value sup { font-size: .8rem; font-family: var(--font-body); letter-spacing: .1em; text-transform: uppercase; vertical-align: super; color: var(--muted); font-weight: 500; }
.price-card--feature .price-card__value sup { color: rgba(255,255,255,.6); }
.price-card__unit { font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.price-card--feature .price-card__unit { color: rgba(255,255,255,.6); }
.price-card ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .6rem; font-size: .9rem; color: var(--muted-2); }
.price-card ul li { display: flex; gap: .6rem; align-items: flex-start; }
.price-card ul li::before { content: "—"; color: var(--sakura-deep); flex: none; }

.note { font-size: .82rem; color: var(--muted); border-left: 2px solid var(--sakura); padding-left: 1rem; max-width: 70ch; }

/* ---------- Galería de proyectos ---------- */
.project {
  position: relative; overflow: hidden; border-radius: var(--radius);
  display: block; aspect-ratio: 3 / 2; background: var(--ink-900);
}
.project img { width: 100%; height: 100%; object-fit: cover; opacity: .88; transition: transform 1s var(--ease), opacity .6s var(--ease); }
.project:hover img { transform: scale(1.05); opacity: 1; }
.project__body {
  position: absolute; inset: auto 0 0; z-index: 2; padding: 1.6rem; color: #fff;
  background: linear-gradient(transparent, rgba(8,8,10,.85));
}
.project__body h3 { color: #fff; margin-bottom: .3rem; }
.project__body p { font-size: .85rem; color: rgba(255,255,255,.78); margin: 0; }
.project__meta { font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: var(--sakura); margin-bottom: .5rem; display: block; }
.project--tall { aspect-ratio: 3 / 4; }
@media (max-width: 700px) { .project--tall { aspect-ratio: 3 / 2; } }

/* ---------- Cita ---------- */
.quote { max-width: 900px; margin-inline: auto; text-align: center; }
.quote p {
  font-family: var(--font-title); font-weight: 500; letter-spacing: -.025em;
  font-size: clamp(1.5rem, 3.4vw, 2.5rem); line-height: 1.18; color: var(--ink);
}
.section--dark .quote p { color: #fff; }
.quote cite { font-style: normal; font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); }

/* ---------- Formulario ---------- */
.form-grid { display: grid; gap: 1.1rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); }
.field { display: flex; flex-direction: column; gap: .45rem; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); font-weight: 500; }
.field input, .field select, .field textarea {
  font-family: var(--font-body); font-size: .95rem; color: var(--ink);
  background: transparent; border: 0; border-bottom: 1px solid var(--line);
  padding: .7rem 0; transition: border-color .3s var(--ease);
}
.field textarea { resize: vertical; min-height: 90px; }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--ink); }
.field input:focus-visible, .field select:focus-visible, .field textarea:focus-visible {
  outline: 2px solid var(--sakura-deep); outline-offset: 3px;
}
/* El desplegable nativo necesita colores explícitos para no romperse en el modo
   oscuro de Windows; el campo en sí se mantiene transparente. */
.field select { background-color: transparent; color: inherit; }
.field select option { background-color: #fff; color: #282828; }
.section--dark .field input, .section--dark .field select, .section--dark .field textarea { color: #fff; border-color: rgba(255,255,255,.25); }
.section--dark .field input:focus, .section--dark .field select:focus, .section--dark .field textarea:focus { border-color: var(--sakura); }
.section--dark .field label { color: rgba(255,255,255,.6); }
.hp { position: absolute; left: -9999px; opacity: 0; }

/* ---------- CTA ---------- */
.cta-band { position: relative; overflow: hidden; background: var(--ink-900); color: #fff; }
.cta-band__media { position: absolute; inset: 0; opacity: .28; }
.cta-band__media img { width: 100%; height: 100%; object-fit: cover; }
.cta-band .container { position: relative; z-index: 2; }
.cta-band h2 { color: #fff; }

/* ---------- Footer ---------- */
.footer { background: var(--ink-900); color: rgba(255,255,255,.66); padding: clamp(3.5rem, 6vw, 5rem) 0 2rem; font-size: .9rem; }
.footer a { color: rgba(255,255,255,.66); transition: color .3s var(--ease); }
.footer a:hover { color: var(--sakura); }
.footer__grid { display: grid; gap: 2.5rem; grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr)); }
.footer h3, .footer h4 { font-family: var(--font-body); font-size: .7rem; letter-spacing: .18em; text-transform: uppercase; color: #fff; margin: 0 0 1.1rem; font-weight: 600; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .6rem; }
.footer__logo { height: 30px; width: auto; margin-bottom: 1.2rem; }
.footer__bottom {
  margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,.12);
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between;
  font-size: .78rem; color: rgba(255,255,255,.45);
}

/* ---------- WhatsApp flotante ---------- */
.wa {
  position: fixed; right: 1.2rem; bottom: 1.2rem; z-index: 90;
  width: 54px; height: 54px; border-radius: 50%; background: #25D366;
  display: grid; place-items: center; color: #fff;
  box-shadow: 0 10px 26px rgba(37,211,102,.36);
  transition: transform .35s var(--ease);
}
.wa:hover { transform: scale(1.08); }
.wa::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%; border: 2px solid #25D366;
  animation: waPulse 2.4s 3;
}
@keyframes waPulse { 0% { transform: scale(1); opacity: .7; } 100% { transform: scale(1.5); opacity: 0; } }

/* ---------- Animaciones de entrada ---------- */
[data-reveal] {
  opacity: 0; transform: translateY(28px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
  transition-delay: var(--delay, 0s);
}
[data-reveal].is-in { opacity: 1; transform: none; }
[data-reveal="fade"] { transform: none; }
[data-reveal="left"] { transform: translateX(-30px); }
[data-reveal="right"] { transform: translateX(30px); }
[data-reveal="zoom"] { transform: scale(.96); }
[data-reveal="zoom"].is-in { transform: scale(1); }

.reveal-mask { display: block; overflow: hidden; }
.reveal-mask > span {
  display: block; transform: translateY(105%);
  transition: transform 1s var(--ease); transition-delay: var(--delay, 0s);
}
.reveal-mask.is-in > span { transform: none; }

.count { font-variant-numeric: tabular-nums; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
  [data-reveal], .reveal-mask > span { opacity: 1 !important; transform: none !important; }
  .hero__media img { animation: none; transform: none; }
}

/* ---------- Utilidades ---------- */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-0 { margin-bottom: 0; }
.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--ink); color: #fff; padding: .8rem 1.2rem; font-size: .8rem;
}
.skip-link:focus { left: 1rem; top: 1rem; }
:focus-visible { outline: 2px solid var(--sakura-deep); outline-offset: 3px; }

/* ============================================================
   Componentes v2 — referencias, inversión, proyectos, FAQ
   ============================================================ */

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--line); max-width: 900px; }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__item summary {
  list-style: none; cursor: pointer; padding: 1.4rem 0;
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
  font-family: var(--font-title); font-size: clamp(1.05rem, 1.6vw, 1.25rem); font-weight: 600;
  letter-spacing: -.02em; color: var(--ink); transition: color .3s var(--ease);
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary:hover { color: var(--sakura-deep); }
.faq__icon { position: relative; flex: none; width: 16px; height: 16px; }
.faq__icon::before, .faq__icon::after {
  content: ""; position: absolute; background: currentColor; transition: transform .35s var(--ease);
}
.faq__icon::before { top: 7px; left: 0; width: 16px; height: 2px; }
.faq__icon::after { left: 7px; top: 0; width: 2px; height: 16px; }
.faq__item[open] .faq__icon::after { transform: scaleY(0); }
.faq__body { padding-bottom: 1.4rem; color: var(--muted-2); font-size: .95rem; max-width: 72ch; }
.faq__body p { margin-bottom: .8rem; }
.faq__body p:last-child { margin-bottom: 0; }
.section--dark .faq, .section--dark .faq__item { border-color: rgba(255,255,255,.14); }
.section--dark .faq__item summary { color: #fff; }
.section--dark .faq__body { color: rgba(255,255,255,.72); }

/* ---------- Tabla de especificaciones / provisión ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
table.spec { width: 100%; border-collapse: collapse; font-size: .92rem; min-width: 520px; }
table.spec th, table.spec td { padding: .95rem 1.1rem; text-align: left; border-bottom: 1px solid var(--line); }
table.spec thead th {
  font-family: var(--font-body); font-size: .68rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--muted); font-weight: 600; background: var(--paper);
}
table.spec td.num, table.spec th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
table.spec tbody tr:last-child td { border-bottom: 0; }
table.spec tr.total td { font-weight: 600; background: var(--paper); font-family: var(--font-title); font-size: 1.05rem; letter-spacing: -.01em; }
table.spec caption { caption-side: bottom; padding: .9rem 1.1rem; font-size: .78rem; color: var(--muted); text-align: left; }

/* ---------- Listado de especificaciones por categoría ---------- */
.spec-group { border-top: 2px solid var(--ink); padding-top: 1.4rem; }
.spec-group h3 { font-size: 1.15rem; margin-bottom: .9rem; }
.spec-group ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; }
.spec-group li { font-size: .92rem; color: var(--muted-2); padding-left: 1.1rem; position: relative; }
.spec-group li::before { content: ""; position: absolute; left: 0; top: .62em; width: 5px; height: 5px; background: var(--sakura); border-radius: 50%; }
.spec-group--out { border-color: var(--line); }
.spec-group--out li::before { background: var(--line); }

/* ---------- Tarjetas de proyecto enriquecidas ---------- */
.proj {
  position: relative; overflow: hidden; border-radius: var(--radius); background: var(--ink-900);
  display: flex; flex-direction: column; min-height: 340px;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}
@media (hover: hover) and (pointer: fine) {
  .proj:hover { transform: translateY(-4px); }
}
a.proj:active { transform: scale(.995); }
.proj__img { position: absolute; inset: 0; }
.proj__img img { width: 100%; height: 100%; object-fit: cover; opacity: .82; transition: transform 1.1s var(--ease), opacity .5s var(--ease); }
.proj:hover .proj__img img { transform: scale(1.06); opacity: 1; }
.proj__grad { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(8,8,10,.15) 30%, rgba(8,8,10,.88) 100%); }
.proj__content { position: relative; z-index: 2; margin-top: auto; padding: 1.5rem; color: #fff; }
.proj__content h3 { color: #fff; margin-bottom: .35rem; }
.proj__place { font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; color: var(--sakura); display: block; margin-bottom: .6rem; }
.proj__specs { display: flex; flex-wrap: wrap; gap: .4rem; margin: .7rem 0 0; padding: 0; list-style: none; }
.proj__specs li {
  font-size: .68rem; letter-spacing: .06em; text-transform: uppercase; color: rgba(255,255,255,.85);
  border: 1px solid rgba(255,255,255,.28); border-radius: 100px; padding: .25rem .6rem;
}
.proj__badge {
  position: absolute; top: 1rem; left: 1rem; z-index: 3;
  background: var(--sakura); color: var(--ink-900);
  font-size: .62rem; letter-spacing: .12em; text-transform: uppercase; font-weight: 600;
  padding: .32rem .7rem; border-radius: 100px;
}
.proj--wide { grid-column: span 2; min-height: 420px; }
@media (max-width: 780px) { .proj--wide { grid-column: span 1; min-height: 340px; } }

/* ---------- Referencias ---------- */
.ref-card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; transition: transform .5s var(--ease), box-shadow .5s var(--ease); }
@media (hover: hover) and (pointer: fine) {
  .ref-card:hover { transform: translateY(-4px); border-color: var(--ink); }
}
.ref-card__media { aspect-ratio: 4/3; overflow: hidden; background: var(--paper); }
.ref-card__media img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s var(--ease); }
.ref-card:hover .ref-card__media img { transform: scale(1.05); }
.ref-card__body { padding: 1.5rem; display: flex; flex-direction: column; gap: .75rem; flex: 1; }
.ref-card__body p { font-size: .92rem; color: var(--muted-2); margin: 0; }
.ref-card__data { display: grid; grid-template-columns: repeat(3, 1fr); gap: .8rem; margin-top: auto; padding-top: 1.1rem; border-top: 1px solid var(--line); }
.ref-card__data div span { display: block; font-size: .62rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.ref-card__data div b { font-family: var(--font-title); font-size: 1.05rem; font-weight: 600; letter-spacing: -.02em; }

/* ---------- Comparativa / barras ---------- */
.bars { display: grid; gap: 1.2rem; margin-top: 1.6rem; }
.bar__head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; margin-bottom: .45rem; font-size: .82rem; }
.bar__head b { font-family: var(--font-title); font-size: 1.05rem; letter-spacing: -.02em; }
.bar__track { height: 10px; background: var(--line); border-radius: 100px; overflow: hidden; }
.bar__fill {
  height: 100%; background: var(--ink); border-radius: 100px; width: 100%;
  transform: scaleX(0); transform-origin: 0 50%;
  transition: transform 1s var(--ease-in-out);
}
.bar__fill--accent { background: var(--sakura); }
.is-in .bar__fill, .bar.is-in .bar__fill { transform: scaleX(var(--s, .5)); }
.section--dark .bar__track { background: rgba(255,255,255,.16); }
.section--dark .bar__fill { background: #fff; }
.section--dark .bar__head { color: rgba(255,255,255,.8); }

/* ---------- Galería ---------- */
.gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr)); gap: 1rem; }
.gallery figure { margin: 0; overflow: hidden; border-radius: var(--radius); aspect-ratio: 4/3; }
.gallery img { width: 100%; height: 100%; object-fit: cover; transition: transform 1s var(--ease); }
.gallery figure:hover img { transform: scale(1.05); }
.gallery--tall figure:first-child { grid-row: span 2; aspect-ratio: 3/4; }

/* ---------- CTA band ---------- */
.cta-band__inner { max-width: 640px; }
.cta-band__inner p { color: rgba(255,255,255,.78); }

/* ---------- Notas de formulario ---------- */
.form-note { font-size: .78rem; color: var(--muted); margin-top: 1.1rem; max-width: 58ch; }
.section--dark .form-note { color: rgba(255,255,255,.5); }

/* ---------- Precio destacado ---------- */
.price-hero { display: flex; flex-wrap: wrap; align-items: flex-end; gap: 1.5rem; padding: 2rem 0; border-top: 2px solid var(--ink); border-bottom: 1px solid var(--line); }
.price-hero__value { font-family: var(--font-title); font-size: clamp(3.4rem, 9vw, 6rem); font-weight: 600; letter-spacing: -.05em; line-height: .9; }
.price-hero__value sup { font-size: .22em; letter-spacing: .1em; text-transform: uppercase; font-family: var(--font-body); font-weight: 500; color: var(--muted); vertical-align: super; }
.price-hero__meta { font-size: .8rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); padding-bottom: .6rem; }
.section--dark .price-hero { border-top-color: var(--sakura); border-bottom-color: rgba(255,255,255,.16); }
.section--dark .price-hero__meta, .section--dark .price-hero__value sup { color: rgba(255,255,255,.6); }

/* ---------- Cita destacada / pull ---------- */
.pull { border-left: 2px solid var(--sakura); padding-left: 1.5rem; max-width: 60ch; }
.pull p { font-family: var(--font-title); font-size: clamp(1.15rem, 2vw, 1.5rem); font-weight: 500; letter-spacing: -.02em; line-height: 1.28; color: var(--ink); margin: 0; }
.section--dark .pull p { color: #fff; }

/* ---------- Grid de dos columnas de texto ---------- */
.cols-2 { columns: 2; column-gap: 3rem; }
@media (max-width: 780px) { .cols-2 { columns: 1; } }

/* ---------- Correcciones de contraste en secciones oscuras ---------- */
.section--dark .step { border-top-color: rgba(255,255,255,.14); }
.section--dark .step:last-child { border-bottom-color: rgba(255,255,255,.14); }
.section--dark .step:hover { background: rgba(255,255,255,.03); }
.section--dark .step p { color: rgba(255,255,255,.72); }
.section--dark .note { color: rgba(255,255,255,.6); border-left-color: var(--sakura); }
.section--dark .lead { color: rgba(255,255,255,.75); }
.section--dark .spec-group { border-top-color: var(--sakura); }
.section--dark .spec-group li { color: rgba(255,255,255,.72); }
.section--dark .link-arrow:hover { color: var(--sakura); }
.section--dark .quote cite { color: rgba(255,255,255,.5); }
.cta-band .eyebrow { color: var(--sakura); }

/* ---------- Diagrama del bloque ---------- */
.diagram { background: var(--paper); border-radius: var(--radius); padding: clamp(1.5rem, 4vw, 3rem); }
.diagram img { max-width: 680px; width: 100%; margin-inline: auto; }
.diagram figcaption { text-align: center; font-size: .78rem; color: var(--muted); margin-top: 1rem; }
.section--paper .diagram { background: #fff; }

/* ---------- Afordancia de ficha en tarjetas de proyecto ---------- */
a.proj .proj__more {
  display: inline-flex; align-items: center; gap: .45rem; margin-top: .9rem;
  font-size: .68rem; letter-spacing: .14em; text-transform: uppercase; font-weight: 600;
  color: var(--sakura); transition: gap .3s var(--ease);
}
a.proj:hover .proj__more { gap: .85rem; }

/* ---------- Filtros de proyectos ---------- */
.filters { display: flex; flex-wrap: wrap; gap: .6rem; margin-bottom: clamp(1.8rem, 3vw, 2.4rem); }
.chip {
  border: 1px solid var(--line); background: transparent; color: var(--muted-2);
  border-radius: 100px; padding: .55rem 1.1rem; cursor: pointer;
  font-size: .72rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
  transition: background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
}
.chip:hover { border-color: var(--ink); color: var(--ink); }
.chip.is-active { background: var(--ink); border-color: var(--ink); color: #fff; }
.proj.is-hidden { display: none; }

/* ---------- Contención horizontal ---------- */
html { overflow-x: clip; }
.grid > *, .split > * { min-width: 0; }
.table-wrap { max-width: 100%; }
@media (max-width: 900px) {
  /* los desplazamientos laterales de entrada no deben generar scroll horizontal */
  [data-reveal="left"], [data-reveal="right"] { transform: translateY(24px); }
}
@media (max-width: 560px) {
  table.spec { min-width: 430px; font-size: .85rem; }
  table.spec th, table.spec td { padding: .75rem .8rem; }
  .price-hero { gap: .8rem; }
}

/* ============================================================
   v3 — Escritorio: más aire, más escala, más movimiento
   ============================================================ */

@media (min-width: 1500px) {
  :root { --container: 1320px; }
  h1 { font-size: clamp(3.2rem, 5.6vw, 5.6rem); }
  h2 { font-size: clamp(2.4rem, 3.6vw, 3.7rem); }
  .section { padding: clamp(6rem, 8vw, 10rem) 0; }
  .lead { font-size: 1.18rem; }
}

/* Encabezado de sección en dos columnas: título a la izquierda, bajada a la derecha */
@media (min-width: 1040px) {
  .section-head:not(.section-head--center) {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    column-gap: clamp(2.5rem, 5vw, 5rem);
    align-items: start;
    max-width: none;
  }
  .section-head:not(.section-head--center) .eyebrow { grid-column: 1 / -1; }
  .section-head:not(.section-head--center) h2 { margin: 0; }
  .section-head:not(.section-head--center) .lead {
    margin: .4rem 0 0; padding-top: .35rem;
    border-top: 1px solid var(--line);
  }
  .section--dark .section-head .lead { border-top-color: rgba(255,255,255,.16); }
  /* en pantallas grandes la imagen del split pesa un poco más */
  .split { grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr); column-gap: clamp(3rem, 5vw, 5.5rem); }
  .split--equal { grid-template-columns: 1fr 1fr; }
  .hero__inner { max-width: 1100px; }
  .hero h1 { max-width: 15ch; }
}

/* ---------- Barra de progreso de lectura ---------- */
.progress {
  position: fixed; inset: 0 auto auto 0; height: 2px; width: 100%;
  transform: scaleX(0); transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--sakura), var(--sakura-deep));
  z-index: 120; pointer-events: none;
}

/* ---------- Cabecera que se esconde al bajar ---------- */
.header.is-hidden { transform: translateY(-110%); }
.header { transition: padding .4s var(--ease), background .4s var(--ease), box-shadow .4s var(--ease), transform .45s var(--ease); }

/* ---------- Revelado de imágenes con cortina ---------- */
[data-reveal="curtain"] {
  opacity: 1; transform: none;
  clip-path: inset(0 0 100% 0);
  transition: clip-path 1.1s var(--ease);
  transition-delay: var(--delay, 0s);
}
[data-reveal="curtain"].is-in { clip-path: inset(0 0 0 0); }
[data-reveal="curtain"]:not(.parallax) img { transform: scale(1.12); transition: transform 1.6s var(--ease); transition-delay: var(--delay, 0s); }
[data-reveal="curtain"]:not(.parallax).is-in img { transform: scale(1); }
.parallax img { transform: scale(1.12); }

/* ---------- Parallax suave de imágenes en scroll ---------- */
.parallax { overflow: hidden; }
.parallax img { will-change: transform; }

/* ---------- Título por palabras ---------- */
.word { display: inline-block; overflow: hidden; vertical-align: top;
        padding-bottom: .14em; margin-bottom: -.14em; }
.word > span {
  display: inline-block; transform: translateY(105%);
  transition: transform .9s var(--ease); transition-delay: var(--wdelay, 0s);
}
.is-in .word > span, .word.is-in > span { transform: none; }

/* ---------- Línea del eyebrow que se dibuja ---------- */
.eyebrow::before { transform: scaleX(0); transform-origin: 0 50%; transition: transform .7s var(--ease) .15s; }
.is-in .eyebrow::before, .eyebrow.is-in::before, [data-reveal].is-in .eyebrow::before { transform: scaleX(1); }
[data-reveal="fade"].eyebrow.is-in::before { transform: scaleX(1); }

/* ---------- Brillo que barre los botones ---------- */
.btn { position: relative; overflow: hidden; }
.btn::after {
  content: ""; position: absolute; inset: 0 auto 0 -60%;
  width: 45%; background: linear-gradient(90deg, transparent, rgba(255,255,255,.28), transparent);
  transform: skewX(-18deg); transition: left .7s var(--ease);
}
.btn--ghost::after { background: linear-gradient(90deg, transparent, rgba(0,0,0,.07), transparent); }
.btn:hover::after { left: 120%; }

/* ---------- Cinta en movimiento ---------- */
.marquee {
  overflow: hidden; border-block: 1px solid var(--line); padding: 1.1rem 0;
  background: var(--white);
}
.section--dark .marquee, .marquee--dark { background: var(--ink-900); border-color: rgba(255,255,255,.14); }
.marquee__track { display: flex; width: max-content; animation: marquee 38s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee span {
  display: inline-flex; align-items: center; gap: 1.6rem; padding-right: 1.6rem;
  font-family: var(--font-title); font-size: clamp(1.1rem, 1.8vw, 1.6rem); font-weight: 500;
  letter-spacing: -.02em; color: var(--ink); white-space: nowrap;
}
.marquee span i { font-style: normal; color: var(--sakura); }
.marquee--dark span { color: #fff; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Realce de tarjetas con puntero ---------- */
.model-card, .ref-card, .proj, .price-card { will-change: transform; }

@media (prefers-reduced-motion: reduce) {
  .marquee__track { animation: none; }
  [data-reveal="curtain"] { clip-path: none !important; }
  [data-reveal="curtain"] img { transform: none !important; }
  .word > span { transform: none !important; }
  .progress { display: none; }
  .header.is-hidden { transform: none; }
}

/* ---------- Transición entre páginas (Chrome/Edge) ---------- */
@view-transition { navigation: auto; }
::view-transition-old(root), ::view-transition-new(root) { animation-duration: .35s; }

/* ============================================================
   v4 — Detalles finos: foco, toque, tipografía y accesibilidad
   ============================================================ */

html { color-scheme: light; }

/* El encabezado fijo no debe tapar el destino de un ancla */
:target, [id] { scroll-margin-top: 6.5rem; }

/* Títulos sin viudas y párrafos con mejor corte */
h1, h2, h3, .quote p, .pull p { text-wrap: balance; }
p, .lead, .step p, .feature p { text-wrap: pretty; }

/* Superficies táctiles */
a, button, summary, .chip, label { -webkit-tap-highlight-color: transparent; }
button, summary, .chip, .nav-toggle, .wa { touch-action: manipulation; }

/* Respuesta al presionar en todo lo pulsable */
.chip:active { transform: scale(.97); }
.chip { transition: background var(--ui) var(--ease), color var(--ui) var(--ease),
                    border-color var(--ui) var(--ease), transform var(--ui) var(--ease); }
.wa:active { transform: scale(.94); }
.nav-toggle:active span { opacity: .7; }

/* Foco visible y coherente */
:focus-visible { outline: 2px solid var(--sakura-deep); outline-offset: 3px; border-radius: 2px; }
.section--dark :focus-visible, .hero :focus-visible, .cta-band :focus-visible,
.footer :focus-visible, .proj :focus-visible { outline-color: var(--sakura); }

/* Acordeón de preguntas: apertura medida, cierre rápido */
.faq__item.is-animating .faq__body { overflow: hidden; }

/* Cinta: control para detenerla */
.marquee { position: relative; }
.marquee__pause {
  position: absolute; right: .75rem; top: 50%; transform: translateY(-50%);
  width: 30px; height: 30px; border-radius: 50%;
  border: 1px solid var(--line); background: var(--white); color: var(--ink);
  display: grid; place-items: center; cursor: pointer;
  opacity: 0; transition: opacity var(--ui) var(--ease), border-color var(--ui) var(--ease);
}
.marquee:hover .marquee__pause, .marquee__pause:focus-visible { opacity: 1; }
.marquee.is-paused .marquee__track { animation-play-state: paused; }
.marquee.is-paused .marquee__pause { opacity: 1; }

/* Conteo de proyectos filtrados */
.filters__count { font-size: .78rem; color: var(--muted); margin-left: auto; align-self: center; }

/* Título oculto, solo para lectores de pantalla */
.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;
}

/* Estado vacío del filtro */
.empty-state { padding: 3rem 0; color: var(--muted); font-size: .95rem; }

@media (prefers-reduced-motion: reduce) {
  .btn:active, .chip:active, .wa:active, a.proj:active { transform: none; }
}

/* El menú móvil no debe arrastrar el scroll de la página */
@media (max-width: 900px) {
  .nav { overscroll-behavior: contain; }
}

/* Botón principal sobre fondo oscuro: contraste real */
.section--dark .btn:not(.btn--light):not(.btn--ghost):not(.btn--solid-light) {
  background: #fff; color: var(--ink); border-color: #fff;
}
.section--dark .btn:not(.btn--light):not(.btn--ghost):not(.btn--solid-light):hover {
  background: var(--sakura); border-color: var(--sakura); color: var(--ink-900);
}
/* Campos del formulario alineados aunque una etiqueta ocupe dos líneas */
.form-grid { align-items: end; }


/* ============================================================
   Menú móvil: la cabecera no puede atrapar al overlay
   `backdrop-filter`, `transform` y `will-change` crean un bloque
   contenedor para los elementos `fixed` que cuelgan de ellos. Con el
   menú abierto se desactivan para que el overlay cubra la pantalla.
   ============================================================ */
body.nav-open .header {
  transform: none !important;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  will-change: auto;
}
body.nav-open .header.is-scrolled { background: transparent; }

@media (max-width: 900px) {
  .nav {
    background: var(--ink-900);
    padding: 6rem 1.5rem 2.5rem;
    gap: 1.2rem;
    overflow-y: auto;
    z-index: 1;
  }
  .nav a { display: block; width: 100%; text-align: left; max-width: 420px; }
  .nav a::after { display: none; }
  .nav a[aria-current="page"] { color: var(--sakura) !important; }
  .nav a.btn { width: auto; text-align: center; align-self: flex-start; }
  /* el logo y el botón de cerrar quedan por encima del overlay */
  body.nav-open .header__logo, body.nav-open .nav-toggle { position: relative; z-index: 3; }
}


/* ============================================================
   v5 — Movimiento: transición entre páginas, scroll nativo y
   secuencia de entrada del hero
   ============================================================ */

/* ---------- 1. Transición entre páginas ----------
   El contenido cruza; la cabecera y el botón de WhatsApp se quedan
   quietos. El nombre de la cabecera se retira con el menú abierto,
   porque un elemento nombrado no debe contener al overlay fijo. */
@view-transition { navigation: auto; }

body:not(.nav-open) .header { view-transition-name: cabecera; }
.wa { view-transition-name: whatsapp; }
main { view-transition-name: contenido; }

::view-transition-group(cabecera),
::view-transition-group(whatsapp) { animation-duration: .01s; }

::view-transition-old(root), ::view-transition-new(root) { animation-duration: .3s; }

/* el contenido sale rápido y entra con calma: salir siempre más corto */
::view-transition-group(contenido) { animation-duration: .42s; }
::view-transition-old(contenido) { animation: vtSalir .26s var(--ease-in-out) both; }
::view-transition-new(contenido) { animation: vtEntrar .46s var(--ease) both; }
@keyframes vtSalir  { to   { opacity: 0; } }
@keyframes vtEntrar { from { opacity: 0; transform: translateY(20px); } }

/* La foto del proyecto se transforma en la portada de su ficha.
   Sin cruce de opacidad: lo que se anima es la caja, no la imagen. */
::view-transition-group(proyecto) {
  animation-duration: .62s;
  animation-timing-function: var(--ease-in-out);
  z-index: 5;
}
::view-transition-old(proyecto),
::view-transition-new(proyecto) {
  height: 100%;
  object-fit: cover;
  animation: none;
  mix-blend-mode: normal;
}
/* la foto antigua se mantiene visible debajo: si la nueva todavía no
   está decodificada, no aparece un hueco */
::view-transition-old(proyecto) { opacity: 1; }
::view-transition-new(proyecto) { opacity: 1; }

/* ---------- 2. Scroll nativo (fuera del hilo principal) ---------- */
@supports (animation-timeline: view()) {
  @media (prefers-reduced-motion: no-preference) {
    .parallax img {
      animation: parallaxY linear both;
      animation-timeline: view();
      animation-range: cover 0% cover 100%;
      will-change: auto;
    }
    @keyframes parallaxY {
      from { transform: scale(1.12) translateY(-3.4%); }
      to   { transform: scale(1.12) translateY(3.4%); }
    }

    .progress {
      animation: avance linear;
      animation-timeline: scroll(root block);
      transform: scaleX(0);
    }
    @keyframes avance { from { transform: scaleX(0); } to { transform: scaleX(1); } }

    /* el contenido del hero se va quedando atrás al bajar */
    .hero__inner, .hero__scroll {
      animation: heroSale linear both;
      animation-timeline: view();
      animation-range: exit -10% exit 90%;
    }
    @keyframes heroSale {
      from { opacity: 1; transform: translateY(0); }
      to   { opacity: 0; transform: translateY(-40px); }
    }
  }
}

/* ---------- 3. Entrada del hero como una sola secuencia ---------- */
@media (prefers-reduced-motion: no-preference) {
  .hero__media { animation: telon .95s var(--ease) both; }
  /* si llegamos con una transición de página, la foto ya viajó desde la
     tarjeta: repetir el telón la cortaría a mitad de camino */
  html.con-transicion .hero__media { animation: none; }
  @keyframes telon { from { clip-path: inset(0 0 100% 0); } to { clip-path: inset(0 0 0 0); } }

  .hero__scroll { animation: asomar .7s var(--ease) both 1.15s; }
  @keyframes asomar { from { opacity: 0; transform: translateY(10px); } }
}

/* ---------- 4. Detalles de puntero ---------- */
@media (hover: hover) and (pointer: fine) {
  .proj:active, .model-card:active, .ref-card:active { transform: scale(.988); }
  .gallery figure { transition: clip-path .4s var(--ease); }
}

@media (prefers-reduced-motion: reduce) {
  ::view-transition-group(*),
  ::view-transition-old(*),
  ::view-transition-new(*) { animation: none !important; }
  .hero__media, .hero__scroll, .hero__inner, .parallax img { animation: none !important; }
}

/* Reacomodo del filtro de proyectos: las tarjetas se mueven, no saltan */
::view-transition-group(.tarjeta) {
  animation-duration: .42s;
  animation-timing-function: var(--ease-in-out);
}
::view-transition-old(.tarjeta) { animation: vtSalir .18s linear both; }
::view-transition-new(.tarjeta) { animation: vtEntrar .34s var(--ease) both; }