/* Megapartes · Modelo 2 · Estilos
   Corporativo y sobrio sobre fondo azul noche, con detalles de plano de ingeniería.
   Contraste AA verificado en los pares de texto principales. */

@font-face { font-family: 'Inter Tight'; font-weight: 700; font-style: normal; font-display: swap; src: url('fonts/inter-tight-700-normal.woff2') format('woff2'); }
@font-face { font-family: 'Inter Tight'; font-weight: 800; font-style: normal; font-display: swap; src: url('fonts/inter-tight-800-normal.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-weight: 400; font-style: normal; font-display: swap; src: url('fonts/inter-400-normal.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-weight: 500; font-style: normal; font-display: swap; src: url('fonts/inter-500-normal.woff2') format('woff2'); }
@font-face { font-family: 'Inter'; font-weight: 600; font-style: normal; font-display: swap; src: url('fonts/inter-600-normal.woff2') format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-weight: 400; font-style: normal; font-display: swap; src: url('fonts/jetbrains-mono-400-normal.woff2') format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-weight: 500; font-style: normal; font-display: swap; src: url('fonts/jetbrains-mono-500-normal.woff2') format('woff2'); }

:root {
  --bg: #0a1a2a;
  --bg-2: #0f2438;
  --panel: rgba(9, 24, 39, 0.86);
  --panel-solido: #0d2033;
  --linea: rgba(111, 182, 234, 0.26);
  --linea-fuerte: rgba(111, 182, 234, 0.55);
  --tx: #eef4fa;
  --tx-2: #b4c6d8;
  --acento: #7fc0ee;
  --marca: #2d6291;
  --marca-2: #3a78b0;
  --f-titulo: 'Inter Tight', 'Inter', system-ui, sans-serif;
  --f-texto: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --f-mono: 'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
  --h-aviso: 38px;
  --h-cab: 60px;
  --h-top: calc(var(--h-aviso) + var(--h-cab));
  --margen: clamp(18px, 4.5vw, 72px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: auto; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--f-texto);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--tx);
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(111, 182, 234, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(111, 182, 234, 0.055) 1px, transparent 1px),
    linear-gradient(rgba(111, 182, 234, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(111, 182, 234, 0.1) 1px, transparent 1px),
    radial-gradient(120% 90% at 70% 40%, #12304a 0%, var(--bg) 62%);
  background-size: 32px 32px, 32px 32px, 160px 160px, 160px 160px, 100% 100%;
  background-attachment: fixed;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--acento); text-underline-offset: 3px; }
a:hover { color: #b6dcf7; }
h1, h2 { scroll-margin-top: calc(var(--h-top) + 16px); }
h1, h2, h3 { font-family: var(--f-titulo); letter-spacing: -0.02em; line-height: 1.08; margin: 0; font-weight: 800; }
h1 { font-size: clamp(2.3rem, 4.6vw, 4.2rem); }
h2 { font-size: clamp(1.7rem, 3vw, 2.7rem); }
h3 { font-size: 1.1rem; font-weight: 700; }
p { margin: 0; }
.mono { font-family: var(--f-mono); }
:focus-visible { outline: 2px solid var(--acento); outline-offset: 3px; border-radius: 2px; }

.saltar { position: fixed; left: 12px; top: -60px; z-index: 300; background: #fff; color: #0a1a2a; padding: 10px 16px; border-radius: 4px; font-weight: 600; }
.saltar:focus { top: 8px; }

/* ---------- aviso de demostración + selector (una línea en escritorio) ---------- */
.aviso {
  position: fixed; top: 0; left: 0; right: 0; z-index: 90; height: var(--h-aviso);
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 0 clamp(16px, 2.2vw, 40px);
  background: #061320; border-bottom: 1px solid var(--linea);
  font-size: 0.74rem; line-height: 1.2; color: var(--tx-2);
}
.aviso-t { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
.aviso-t a { color: var(--acento); font-weight: 600; margin-left: 6px; }
.modelos { display: flex; align-items: center; gap: 10px; flex: none; }
.modelos-t { font-family: var(--f-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--tx-2); }
.modelos ul { list-style: none; display: flex; gap: 4px; margin: 0; padding: 0; }
.modelos a {
  display: block; padding: 3px 9px; border: 1px solid var(--linea); border-radius: 3px;
  color: var(--tx-2); text-decoration: none; font-size: 0.74rem; white-space: nowrap;
}
.modelos a:hover { border-color: var(--acento); color: var(--tx); }
.modelos a.actual { background: var(--marca); border-color: var(--marca); color: #fff; font-weight: 600; }

/* ---------- encabezado ---------- */
.cab {
  position: fixed; top: var(--h-aviso); left: 0; right: 0; z-index: 80; height: var(--h-cab);
  display: flex; align-items: center; gap: 24px; padding: 0 var(--margen);
  background: linear-gradient(180deg, rgba(8, 21, 34, 0.94), rgba(8, 21, 34, 0.82));
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--linea);
}
.marca { display: block; flex: none; }
.marca img { width: 168px; height: auto; filter: brightness(0) invert(1); }
.menu { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.menu a:not(.btn) {
  color: var(--tx-2); text-decoration: none; font-size: 0.92rem; font-weight: 500; padding: 8px 14px; border-radius: 3px; white-space: nowrap;
  display: inline-flex; align-items: center; gap: 6px;
}
.menu a:not(.btn):hover { color: var(--tx); background: rgba(111, 182, 234, 0.1); }
.menu a.actual { color: #fff; box-shadow: inset 0 -2px 0 var(--acento); }
.menu .menu-wa { display: none; }
.cab-wa { flex: none; }
.burger { display: none; background: none; border: 1px solid var(--linea); color: var(--tx); width: 42px; height: 42px; border-radius: 4px; cursor: pointer; margin-left: auto; align-items: center; justify-content: center; }

/* ---------- botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 11px 20px; border-radius: 3px; border: 1px solid var(--marca);
  background: var(--marca); color: #fff; text-decoration: none; cursor: pointer;
  font: 600 0.92rem/1.2 var(--f-texto); transition: background-color .2s, border-color .2s, transform .2s;
}
.btn:hover { background: var(--marca-2); border-color: var(--marca-2); color: #fff; }
.btn:active { transform: translateY(1px); }
.btn-sec { background: transparent; border-color: var(--linea-fuerte); color: var(--tx); }
.btn-sec:hover { background: rgba(111, 182, 234, 0.12); border-color: var(--acento); color: #fff; }
.cab-wa { padding: 9px 16px; font-size: 0.86rem; }

/* ---------- elementos de texto ---------- */
.eyebrow { font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.12em; color: var(--acento); margin-bottom: 14px; font-weight: 500; }
.lead { font-size: clamp(1.02rem, 1.25vw, 1.18rem); color: var(--tx-2); line-height: 1.6; margin-top: 18px; }
.cap-p { color: var(--tx-2); margin-top: 14px; }
.nota { font-size: 0.82rem; color: #9fb4c8; margin-top: 16px; font-family: var(--f-mono); }
.acciones { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }

/* ====================== INICIO: historia al scroll ====================== */
.lienzo {
  position: fixed; inset: 0; width: 100%; height: 100%; z-index: 1; display: block;
  opacity: 0; transition: opacity 1.4s ease; touch-action: pan-y; cursor: grab;
}
.lienzo.listo { opacity: 1; }
.lienzo.sobre-pieza { cursor: pointer; }
.lienzo.arrastrando { cursor: grabbing; }
.guias { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 20; pointer-events: none; }
.guias line { stroke: var(--acento); stroke-width: 1; opacity: 0; transition: opacity .3s; }
.guias circle { fill: #0a1a2a; stroke: var(--acento); stroke-width: 1.5; opacity: 0; transition: opacity .3s; }
.guias .on { opacity: 0.95; }
.etiquetas { position: fixed; inset: 0; z-index: 21; pointer-events: none; }
.etq {
  position: absolute; left: 0; top: 0; display: flex; align-items: center; gap: 8px; white-space: nowrap;
  background: rgba(7, 19, 31, 0.92); border: 1px solid var(--linea-fuerte); color: var(--tx);
  font: 500 0.72rem/1 var(--f-mono); letter-spacing: 0.04em; padding: 6px 10px 6px 6px; border-radius: 2px;
  opacity: 0; transition: opacity .3s; will-change: transform;
}
.etq.on { opacity: 1; }
.etq b { background: var(--acento); color: #06121e; padding: 3px 6px; border-radius: 1px; font-weight: 600; }
.etq em { font-style: normal; color: var(--tx-2); }
.etq.solo-num { padding: 4px; }
.progreso { position: fixed; left: 0; top: var(--h-top); bottom: 0; width: 3px; z-index: 30; background: rgba(111, 182, 234, 0.1); }
.progreso i { display: block; width: 100%; height: 100%; background: var(--acento); transform-origin: top; transform: scaleY(0); }
.bloque-titulo {
  position: fixed; right: 18px; top: 50%; z-index: 22; display: flex; gap: 16px; pointer-events: none;
  writing-mode: vertical-rl; transform: translateY(-50%) rotate(180deg);
  color: #8fa9c0; font-size: 0.62rem; letter-spacing: 0.14em; white-space: nowrap;
}
.bloque-titulo span:first-child { color: var(--tx); font-weight: 500; }

.historia { position: relative; z-index: 10; pointer-events: none; }
.cap {
  min-height: 100vh; min-height: 100svh; display: flex; align-items: center;
  padding: calc(var(--h-top) + 30px) var(--margen) 40px; pointer-events: none;
}
.tarjeta {
  pointer-events: auto; width: min(470px, 44vw); padding: 28px 30px 30px;
  background: var(--panel); border: 1px solid var(--linea); border-radius: 3px;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  position: relative; transition: opacity .35s ease;
}
.tarjeta::before, .tarjeta::after { content: ''; position: absolute; width: 14px; height: 14px; border: 2px solid var(--acento); }
.tarjeta::before { left: -1px; top: -1px; border-right: 0; border-bottom: 0; }
.tarjeta::after { right: -1px; bottom: -1px; border-left: 0; border-top: 0; }
.tarjeta-hero { width: min(580px, 48vw); }
.tarjeta h2 { font-size: clamp(1.7rem, 2.6vw, 2.5rem); }
.tarjeta .eyebrow { display: flex; gap: 10px; flex-wrap: wrap; }
.datos { list-style: none; margin: 28px 0 0; padding: 18px 0 0; border-top: 1px solid var(--linea); display: flex; gap: 26px; flex-wrap: wrap; }
.datos li { display: grid; gap: 2px; }
.datos strong { font: 800 1.25rem/1.1 var(--f-titulo); }
.datos span { font-size: 0.78rem; color: var(--tx-2); }
.cats { list-style: none; padding: 0; margin: 16px 0 0; display: grid; gap: 6px; }
.cats a {
  display: flex; justify-content: space-between; gap: 14px; align-items: baseline; text-decoration: none;
  padding: 9px 12px; border: 1px solid var(--linea); border-radius: 2px; color: var(--tx); font-weight: 500; font-size: 0.92rem;
}
.cats a:hover { border-color: var(--acento); background: rgba(111, 182, 234, 0.08); color: #fff; }
.cats a span { font: 400 0.72rem var(--f-mono); color: var(--acento); white-space: nowrap; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.chip {
  display: inline-flex; align-items: center; gap: 8px; padding: 7px 12px 7px 7px; background: transparent; color: var(--tx);
  border: 1px solid var(--linea-fuerte); border-radius: 2px; font: 500 0.84rem var(--f-texto); cursor: pointer;
}
.chip:hover, .chip[aria-pressed="true"] { background: rgba(111, 182, 234, 0.16); border-color: var(--acento); }
.chip-n { background: var(--acento); color: #06121e; padding: 2px 6px; font-size: 0.7rem; font-weight: 500; border-radius: 1px; }
.marcas { margin-top: 20px; font-size: 0.74rem; color: var(--tx-2); letter-spacing: 0.06em; }

/* ---------- ficha de pieza ---------- */
.ficha {
  position: fixed; z-index: 70; left: var(--margen); top: calc(var(--h-top) + 24px); width: min(470px, 44vw);
  max-height: calc(100vh - var(--h-top) - 48px); max-height: calc(100svh - var(--h-top) - 48px); overflow-y: auto;
  padding: 26px 28px 28px; background: var(--panel-solido); border: 1px solid var(--linea-fuerte); border-radius: 3px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
}
.ficha[hidden] { display: none; }
.ficha h2 { font-size: clamp(1.5rem, 2.2vw, 2rem); padding-right: 44px; }
.ficha h3 { font: 500 0.72rem var(--f-mono); text-transform: uppercase; letter-spacing: 0.1em; color: var(--acento); margin-top: 22px; }
.ficha-x {
  position: absolute; right: 14px; top: 14px; width: 38px; height: 38px; display: grid; place-items: center;
  background: transparent; border: 1px solid var(--linea-fuerte); color: var(--tx); border-radius: 3px; cursor: pointer;
}
.ficha-x:hover { background: rgba(111, 182, 234, 0.16); }
.prods { list-style: none; padding: 0; margin: 12px 0 0; display: grid; gap: 8px; }
.prod { display: flex; gap: 12px; align-items: center; padding: 8px; border: 1px solid var(--linea); border-radius: 2px; background: rgba(255, 255, 255, 0.03); }
.prod img { width: 96px; height: 72px; object-fit: contain; background: #fff; border-radius: 2px; flex: none; }
.prod-marca { display: block; font: 500 0.68rem var(--f-mono); text-transform: uppercase; letter-spacing: 0.08em; color: var(--acento); }
.prod-n { display: block; font-size: 0.88rem; line-height: 1.35; margin-top: 2px; }
body.ficha-abierta .historia .tarjeta { opacity: 0; pointer-events: none; }

/* ---------- respaldo estático (sin WebGL) ---------- */
.estatico { display: none; }
.sin-webgl .lienzo, .sin-webgl .guias, .sin-webgl .etiquetas { display: none; }
.sin-webgl .estatico { display: block; position: fixed; z-index: 1; right: 4vw; top: calc(var(--h-top) + 20px); bottom: 20px; width: min(46vw, 560px); }
.sin-webgl .estatico svg { width: 100%; height: 100%; }
.estatico-visor { position: absolute; inset: 0; }
.sin-webgl .estatico-visor { width: auto; right: 0; top: 0; bottom: 0; position: absolute; }

/* ====================== PÁGINAS INTERNAS ====================== */
.pag-int { padding-top: var(--h-top); }
.seccion { padding: clamp(48px, 7vw, 96px) var(--margen); position: relative; z-index: 2; max-width: 1480px; margin: 0 auto; }
.seccion h2 { margin-bottom: 4px; }
.hero-int { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(24px, 5vw, 80px); align-items: center; min-height: calc(100vh - var(--h-top)); padding-top: clamp(28px, 4vw, 60px); padding-bottom: clamp(28px, 4vw, 60px); }
.hero-int-txt { max-width: 640px; }
.visor {
  position: relative; width: 100%; aspect-ratio: 4 / 3.2; max-height: 640px; border: 1px solid var(--linea); border-radius: 3px;
  background: radial-gradient(90% 80% at 50% 40%, rgba(45, 98, 145, 0.35), rgba(8, 20, 33, 0.7));
  overflow: hidden;
}
.visor::before, .visor::after { content: ''; position: absolute; width: 16px; height: 16px; border: 2px solid var(--acento); z-index: 3; }
.visor::before { left: -1px; top: -1px; border-right: 0; border-bottom: 0; }
.visor::after { right: -1px; bottom: -1px; border-left: 0; border-top: 0; }
.lienzo-visor { position: absolute; inset: 0; width: 100%; height: 100%; display: block; touch-action: pan-y; cursor: grab; opacity: 0; transition: opacity 1.2s ease; }
.lienzo-visor.listo { opacity: 1; }
.lienzo-visor.arrastrando { cursor: grabbing; }
.sin-webgl .lienzo-visor { display: none; }
.visor-pie { position: absolute; left: 14px; right: 14px; bottom: 10px; z-index: 4; display: flex; justify-content: space-between; gap: 12px; font-size: 0.68rem; letter-spacing: 0.08em; text-transform: uppercase; color: #a8bfd4; pointer-events: none; }
.explorador { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: clamp(24px, 4vw, 64px); align-items: start; padding-top: clamp(28px, 4vw, 56px); }
.explorador .visor { grid-column: 2; grid-row: 1; position: sticky; top: calc(var(--h-top) + 20px); aspect-ratio: 1 / 1; max-height: calc(100vh - var(--h-top) - 48px); }
.explorador-izq { grid-column: 1; grid-row: 1; min-width: 0; }
.explorador-izq .sub { font-size: clamp(1.3rem, 2vw, 1.7rem); margin-top: 44px; }
.panel-pieza { margin-top: 22px; display: grid; gap: 4px; padding: 24px; border: 1px solid var(--linea); border-radius: 3px; background: var(--panel); }
.panel-pieza h3 { font-size: 1.5rem; }
.panel-pieza h4 { font: 500 0.72rem var(--f-mono); text-transform: uppercase; letter-spacing: 0.1em; color: var(--acento); margin: 18px 0 0; }
.chips-cat { margin-top: 22px; }
.filtros { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.grid-prods { list-style: none; padding: 0; margin: 24px 0 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; }
.carta { border: 1px solid var(--linea); border-radius: 3px; background: var(--panel); overflow: hidden; display: flex; flex-direction: column; height: 100%; }
.carta-img { background: #fff; aspect-ratio: 4 / 3; display: grid; place-items: center; }
.carta-img img { width: 100%; height: 100%; object-fit: contain; }
.carta-cuerpo { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.carta-cuerpo h3 { font-size: 1rem; line-height: 1.3; font-weight: 700; }
.carta-acc { display: flex; gap: 8px; margin-top: auto; flex-wrap: wrap; }
.carta-acc .btn { padding: 8px 14px; font-size: 0.82rem; }
.lista-cats { list-style: none; padding: 0; margin: 24px 0 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 8px; }
.lista-cats a { display: flex; justify-content: space-between; gap: 12px; padding: 12px 14px; border: 1px solid var(--linea); border-radius: 2px; text-decoration: none; color: var(--tx); font-weight: 500; }
.lista-cats a:hover { border-color: var(--acento); background: rgba(111, 182, 234, 0.08); }
.lista-cats span { font: 400 0.74rem var(--f-mono); color: var(--acento); align-self: center; }
.ventajas { list-style: none; padding: 0; margin: 26px 0 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 12px; }
.ventajas li { display: flex; gap: 14px; align-items: center; padding: 18px; border: 1px solid var(--linea); border-radius: 3px; background: var(--panel); font-weight: 600; }
.ventajas svg { color: var(--acento); flex: none; }
.banner { margin: 28px 0 0; border: 1px solid var(--linea); border-radius: 3px; overflow: hidden; background: #fff; }
.marcas-lista { list-style: none; padding: 0; margin: 24px 0 0; display: flex; flex-wrap: wrap; gap: 10px; }
.marcas-lista li { padding: 10px 18px; border: 1px solid var(--linea-fuerte); border-radius: 2px; letter-spacing: 0.06em; }
.tarjetas-contacto { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; margin-top: 28px; }
.tc { padding: 24px; border: 1px solid var(--linea); border-radius: 3px; background: var(--panel); }
.tc svg { color: var(--acento); }
.tc h3 { margin: 14px 0 8px; }
.tc p { color: var(--tx-2); }
.tc a { color: var(--tx); text-decoration-color: var(--linea-fuerte); }
.tc a:hover { color: var(--acento); }
.tc-link { display: inline-flex; gap: 6px; align-items: center; margin-top: 12px; font-size: 0.86rem; color: var(--acento) !important; }

/* ---------- pie ---------- */
.pie { position: relative; z-index: 12; background: #061320; border-top: 1px solid var(--linea); padding: 48px var(--margen) 28px; color: var(--tx-2); font-size: 0.92rem; }
.pie-grid { display: grid; grid-template-columns: 1.2fr 0.8fr 1.4fr; gap: 40px; max-width: 1480px; margin: 0 auto; }
.pie-marca img { width: 168px; filter: brightness(0) invert(1); margin-bottom: 14px; }
.pie-nav { display: grid; gap: 6px; align-content: start; }
.pie-nav a { color: var(--tx-2); text-decoration: none; }
.pie-nav a:hover { color: var(--acento); }
.pie strong.mono { display: block; font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--tx); margin-bottom: 8px; font-weight: 500; }
.pie address { font-style: normal; line-height: 1.7; }
.pie address a { color: var(--acento); }
.pie-modelos { max-width: 1480px; margin: 32px auto 0; padding-top: 22px; border-top: 1px solid var(--linea); }
.pie-demo { max-width: 1480px; margin: 22px auto 0; font-size: 0.8rem; color: #9db5cb; }
.pie-demo a { color: var(--acento); font-weight: 600; }
.wa-flotante {
  position: fixed; right: 22px; bottom: 20px; z-index: 85; width: 52px; height: 52px; border-radius: 50%;
  display: grid; place-items: center; background: var(--marca); color: #fff; border: 1px solid rgba(255, 255, 255, 0.35);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4); transition: transform .2s;
}
.wa-flotante:hover { transform: scale(1.06); color: #fff; background: var(--marca-2); }

/* ---------- cortina de transición (respaldo GSAP) ---------- */
.hoja {
  position: fixed; inset: 0; z-index: 400; pointer-events: none; clip-path: inset(0 0 100% 0);
  background: #f4f7fa; color: #0a1a2a;
  background-image: repeating-linear-gradient(180deg, transparent 0 31px, rgba(45, 98, 145, 0.12) 31px 32px);
}
html.hoja-entrada .hoja { clip-path: inset(0); pointer-events: auto; }
.hoja-cab { position: absolute; left: var(--margen); right: var(--margen); top: 28px; display: flex; justify-content: space-between; font-size: 0.74rem; letter-spacing: 0.12em; color: var(--marca); }
.hoja-borde { position: fixed; left: 0; right: 0; top: 0; height: 3px; margin-top: -3px; z-index: 401; opacity: 0; pointer-events: none; background: var(--acento); box-shadow: 0 0 18px 3px rgba(111, 182, 234, 0.85); }

/* ---------- transiciones entre documentos (View Transitions) ---------- */
@view-transition { navigation: auto; }
::view-transition-old(root) { animation: vt-sale .5s ease both; }
::view-transition-new(root) { animation: vt-imprime .85s cubic-bezier(.65, 0, .25, 1) both; }
@keyframes vt-sale { to { opacity: .35; transform: translateY(1.5%); } }
@keyframes vt-imprime { from { clip-path: inset(0 0 100% 0); } to { clip-path: inset(0 0 0 0); } }

/* ====================== RESPONSIVE ====================== */
@media (max-width: 1180px) {
  .modelos-t { display: none; }
  .menu a:not(.btn) { padding: 8px 10px; }
  .pie-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 1020px) {
  .aviso { font-size: 0.72rem; }
  .menu {
    position: absolute; top: var(--h-cab); left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 2px;
    padding: 14px var(--margen) 20px; background: var(--panel-solido); border-bottom: 1px solid var(--linea-fuerte);
    transform: translateY(-8px); opacity: 0; visibility: hidden; transition: opacity .2s, transform .2s, visibility .2s; margin: 0;
  }
  .menu.abierto { opacity: 1; transform: none; visibility: visible; }
  .menu a:not(.btn) { padding: 14px 6px; font-size: 1rem; border-bottom: 1px solid var(--linea); }
  .menu a.actual { box-shadow: none; color: var(--acento); }
  .menu .menu-wa { display: inline-flex; margin-top: 12px; }
  .cab-wa { display: none; }
  .burger { display: inline-flex; }
}
@media (max-width: 820px) {
  :root { --h-aviso: 56px; --h-cab: 54px; }
  .aviso { flex-direction: column; align-items: flex-start; justify-content: center; gap: 3px; padding-top: 4px; padding-bottom: 4px; }
  .aviso-t { white-space: normal; font-size: 0.66rem; line-height: 1.25; }
  .modelos { gap: 0; }
  .modelos a { padding: 1px 6px; font-size: 0.66rem; }
  .marca img { width: 138px; }
  .cap { align-items: flex-end; padding-bottom: 12px; padding-top: calc(var(--h-top) + 10px); }
  .tarjeta, .tarjeta-hero { width: 100%; padding: 14px 16px 16px; }
  .tarjeta .eyebrow { font-size: 0.64rem; margin-bottom: 8px; letter-spacing: 0.08em; }
  .tarjeta h2 { font-size: 1.45rem; }
  h1 { font-size: 1.75rem; }
  .lead { font-size: 0.88rem; margin-top: 8px; line-height: 1.5; }
  .cap-p { font-size: 0.88rem; margin-top: 6px; line-height: 1.5; }
  .nota { font-size: 0.72rem; margin-top: 8px; }
  .datos { margin-top: 10px; padding-top: 8px; gap: 4px 14px; }
  .datos li { display: flex; gap: 5px; align-items: baseline; }
  .datos strong { font-size: 0.82rem; }
  .datos span { font-size: 0.7rem; }
  .acciones { margin-top: 12px; gap: 8px; }
  .btn { padding: 9px 10px; font-size: 0.8rem; gap: 6px; }
  .pag-inicio .wa-flotante { top: calc(var(--h-top) + 10px); bottom: auto; right: 10px; }
  .cats { margin-top: 8px; gap: 4px; }
  .cats a { padding: 6px 10px; font-size: 0.82rem; }
  .chips { margin-top: 10px; gap: 5px; }
  .chip { font-size: 0.76rem; padding: 4px 8px 4px 4px; gap: 6px; }
  .marcas { margin-top: 10px; font-size: 0.66rem; }
  .ficha { left: 0; right: 0; top: auto; bottom: 0; width: 100%; max-height: 52vh; max-height: 52svh; border-radius: 10px 10px 0 0; padding: 16px 16px 18px; }
  .ficha h2 { font-size: 1.3rem; }
  .ficha h3 { margin-top: 14px; }
  .prod img { width: 72px; height: 54px; }
  .hero-int { grid-template-columns: 1fr; min-height: 0; }
  .explorador { grid-template-columns: 1fr; }
  .explorador .visor { position: relative; top: 0; grid-column: 1; max-height: 420px; aspect-ratio: 4 / 3; }
  .explorador-izq { grid-row: 2; }
  .visor { aspect-ratio: 1 / 1; max-height: 440px; }
  .panel-pieza { padding: 18px; }
  .pie-grid { grid-template-columns: 1fr; gap: 28px; }
  .wa-flotante { right: 12px; bottom: 12px; width: 44px; height: 44px; }
  .etq { font-size: 0.64rem; padding: 5px 8px 5px 5px; }
  .bloque-titulo { display: none; }
  .progreso { width: 2px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  @view-transition { navigation: none; }
}