/* ===== Sitio moderno (8100) ===== */
:root {
  --fondo: #f5f7fb; --fondo-alt: #e9eef7; --panel: #ffffff; --texto: #162033; --suave: #5a6678;
  --acento: #1b3a6b; --acento-2: #c9a227; --borde: #d9e0ec; --sombra: rgba(16, 32, 64, .10); --radio: 18px;
  --fuente: "Segoe UI Variable", "Segoe UI", system-ui, -apple-system, Roboto, "Helvetica Neue", Arial, sans-serif;
}
@media (prefers-color-scheme: dark) {
  :root { --fondo: #0f1522; --fondo-alt: #151d2e; --panel: #19223a; --texto: #e8ecf5; --suave: #a3adc2; --acento: #7aa2ff; --acento-2: #e3bd4b; --borde: #2a3552; --sombra: rgba(0, 0, 0, .45); }
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 76px; }
body { margin: 0; background: var(--fondo); color: var(--texto); font: 17px/1.65 var(--fuente); -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; }
img { max-width: 100%; }
.ancho { width: min(1140px, 100% - 40px); margin-inline: auto; }
.angosto { width: min(760px, 100% - 40px); }

.cab { position: sticky; top: 0; z-index: 30; background: color-mix(in srgb, var(--panel) 80%, transparent); backdrop-filter: saturate(1.5) blur(14px); -webkit-backdrop-filter: saturate(1.5) blur(14px); border-bottom: 1px solid var(--borde); }
.cab-int { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 0; }
.marca { font-size: 21px; font-weight: 800; letter-spacing: -.3px; color: var(--acento); text-decoration: none; }
.menu { display: flex; align-items: center; flex-wrap: wrap; justify-content: flex-end; gap: 4px 6px; }
.menu a { color: var(--texto); text-decoration: none; font-size: 15px; font-weight: 500; padding: 8px 12px; border-radius: 10px; transition: background .2s, color .2s; }
.menu a:hover { background: var(--fondo-alt); color: var(--acento); }
.menu .boton-menu { background: var(--acento); color: #fff; font-weight: 600; padding: 9px 16px; border-radius: 999px; margin-left: 6px; box-shadow: 0 4px 14px color-mix(in srgb, var(--acento) 35%, transparent); }
.menu .boton-menu:hover { background: var(--acento); color: #fff; filter: brightness(1.12); transform: translateY(-1px); }

h1, h2, h3 { font-family: var(--fuente); letter-spacing: -.02em; line-height: 1.12; }
h1 { font-size: clamp(32px, 5.4vw, 58px); font-weight: 800; margin: 0 0 18px; color: var(--acento); max-width: 20ch; }
h2 { font-size: clamp(26px, 3.6vw, 40px); font-weight: 800; color: var(--acento); margin: 0 0 10px; }
h3 { font-size: 19px; font-weight: 700; margin: 0 0 8px; letter-spacing: -.01em; }
p { margin: 0 0 14px; }
.sobre { color: var(--acento-2); font-weight: 700; letter-spacing: 1.6px; text-transform: uppercase; font-size: 12.5px; margin: 0 0 12px; }
.bajada { max-width: 62ch; color: var(--suave); font-size: 19px; }
.intro, .nota { color: var(--suave); font-size: 15px; }

.boton, .boton-sec { display: inline-block; padding: 14px 26px; border-radius: 999px; font-weight: 700; text-decoration: none; border: 2px solid var(--acento); cursor: pointer; font-size: 16px; transition: transform .15s, box-shadow .2s, filter .2s; }
.boton { background: var(--acento); color: #fff; box-shadow: 0 8px 24px color-mix(in srgb, var(--acento) 32%, transparent); }
.boton:hover { transform: translateY(-2px); filter: brightness(1.1); }
.boton-sec { color: var(--acento); margin-left: 8px; background: transparent; }

.portada { padding: clamp(64px, 9vw, 120px) 0 clamp(56px, 7vw, 96px); background: radial-gradient(1200px 500px at 85% -10%, color-mix(in srgb, var(--acento) 14%, transparent), transparent 60%), var(--fondo); }
.seccion { padding: clamp(56px, 8vw, 104px) 0; }
.seccion.alt { background: var(--fondo-alt); }

.tarjetas { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; margin-top: 30px; }
.tarjetas article { background: var(--panel); border: 1px solid var(--borde); border-radius: var(--radio); padding: 26px; box-shadow: 0 1px 2px var(--sombra); transition: transform .2s, box-shadow .25s, border-color .2s; }
.tarjetas article:hover { transform: translateY(-4px); box-shadow: 0 16px 36px var(--sombra); border-color: color-mix(in srgb, var(--acento) 40%, var(--borde)); }
.tarjetas article::before { content: ''; display: block; width: 36px; height: 4px; border-radius: 4px; background: var(--acento-2); margin-bottom: 16px; }
.tarjetas p { margin: 0; color: var(--suave); font-size: 15.5px; }
.columnas { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 28px; margin-top: 20px; }

.pasos { counter-reset: paso; list-style: none; padding: 0; margin: 40px 0 0; display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 30px 22px; }
.pasos li { counter-increment: paso; position: relative; background: var(--panel); border: 1px solid var(--borde); border-radius: var(--radio); padding: 34px 24px 24px; box-shadow: 0 1px 2px var(--sombra); }
.pasos li::before { content: counter(paso); position: absolute; top: -18px; left: 22px; width: 38px; height: 38px; border-radius: 50%; background: var(--acento); color: #fff; font-weight: 800; display: grid; place-items: center; box-shadow: 0 6px 16px color-mix(in srgb, var(--acento) 40%, transparent); }
.pasos p { margin: 0; color: var(--suave); font-size: 15.5px; }

.forma { display: grid; gap: 14px; margin: 20px 0; }
.forma label { display: grid; gap: 4px; font-size: 14px; font-weight: 600; }
.forma input, .forma textarea { font: inherit; padding: 12px 14px; border: 1px solid var(--borde); border-radius: 12px; background: var(--panel); color: var(--texto); }
.pie { padding: 30px 0; border-top: 1px solid var(--borde); color: var(--suave); font-size: 14px; }

@media (max-width: 720px) {
  .cab-int { flex-wrap: wrap; } .menu a { padding: 6px 9px; font-size: 14px; }
  .boton-sec { margin: 10px 0 0; }
}

/* ---- bloques con imagen (constructor 8100) ---- */
.con-imagen { display: grid; grid-template-columns: 1.15fr 1fr; gap: 36px; align-items: center; }
.con-imagen.inv > :first-child { order: 2; }
.foto { width: 100%; height: auto; border-radius: 14px; border: 1px solid var(--borde); box-shadow: 0 2px 10px var(--sombra); display: block; background: var(--panel); }
.foto.ancha { margin: 18px 0 8px; }
@media (max-width: 720px) { .con-imagen { grid-template-columns: 1fr; } .con-imagen.inv > :first-child { order: 0; } }

/* ---- paletas (fuente de modelos de color; catálogo en render.js) ---- */
.pal { background: var(--fondo); color: var(--texto); }
.pal-dorado { --fondo: #FAF6EC; --fondo-alt: #F1EAD8; --panel: #FFFEFA; --texto: #2A2418; --suave: #726A57; --acento: #1F4B47; --acento-2: #A8752B; --borde: #DED1AE; --sombra: rgba(0,0,0,.10); }
.pal-institucional { --fondo: #F4F6FA; --fondo-alt: #E6EBF4; --panel: #FFFFFF; --texto: #1A2233; --suave: #5B6579; --acento: #1B3A6B; --acento-2: #C9A227; --borde: #CBD3E3; --sombra: rgba(0,0,0,.10); }
.pal-bosque { --fondo: #F4F7F1; --fondo-alt: #E4ECDD; --panel: #FFFFFF; --texto: #1F2A22; --suave: #5E6C60; --acento: #2E5E3E; --acento-2: #8A9A2B; --borde: #CFDAC6; --sombra: rgba(0,0,0,.10); }
.pal-burdeos { --fondo: #FBF5F3; --fondo-alt: #F3E6E1; --panel: #FFFFFF; --texto: #2A1A1D; --suave: #76616A; --acento: #6B1F2F; --acento-2: #B8860B; --borde: #E4CFC8; --sombra: rgba(0,0,0,.10); }
.pal-grafito { --fondo: #F3F4F6; --fondo-alt: #E5E7EB; --panel: #FFFFFF; --texto: #1F2329; --suave: #5F6672; --acento: #2B2F36; --acento-2: #E07A1F; --borde: #D1D5DB; --sombra: rgba(0,0,0,.10); }
.pal-terracota { --fondo: #FBF3EC; --fondo-alt: #F4E4D6; --panel: #FFFFFF; --texto: #2D1F18; --suave: #7A645A; --acento: #A0472B; --acento-2: #2F6F73; --borde: #E6D2C0; --sombra: rgba(0,0,0,.10); }
.pal-violeta { --fondo: #F6F4FB; --fondo-alt: #E9E4F5; --panel: #FFFFFF; --texto: #211C33; --suave: #6A6385; --acento: #4B3B8F; --acento-2: #D9A441; --borde: #D8D1EA; --sombra: rgba(0,0,0,.10); }
.pal-noche { --fondo: #14211F; --fondo-alt: #1B2B28; --panel: #1F312E; --texto: #ECE8DC; --suave: #A8B3AE; --acento: #D9A64E; --acento-2: #5FA99B; --borde: #2F4540; --sombra: rgba(0,0,0,.10); }

/* ---- banner antes / después (transición) ---- */
@property --p { syntax: '<percentage>'; inherits: true; initial-value: 0%; }
.banner { background: #14110c; }
.b-escena { position: relative; aspect-ratio: 21 / 9; min-height: 340px; overflow: hidden; --p: 0%; animation: cortina 7s cubic-bezier(.65, 0, .35, 1) 1.4s forwards; color: #fff; }
.b-escena > img, .b-vacio { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; }
.b-vacio { display: grid; place-items: center; background: #2a2418; color: #b9ad90; font-size: 18px; }
.trans-cortina .b-despues { clip-path: inset(0 calc(100% - var(--p)) 0 0); }
.b-linea { position: absolute; top: 0; bottom: 0; left: var(--p); width: 3px; margin-left: -1.5px; background: linear-gradient(#fff3, #fff, #fff3); box-shadow: 0 0 18px 4px rgba(255, 235, 190, .75); pointer-events: none; }
.b-rango { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: ew-resize; margin: 0; }
.trans-fundido .b-despues { opacity: 0; animation: fundido 6s ease-in-out 1.4s forwards; }
.trans-fundido { animation: none; }
.b-etq { position: absolute; top: 14px; padding: 4px 12px; border-radius: 999px; font-size: 13px; letter-spacing: .6px; text-transform: uppercase; background: rgba(0, 0, 0, .55); backdrop-filter: blur(3px); }
.b-etq-a { left: 14px; } .b-etq-d { right: 14px; }
.b-texto { position: absolute; left: clamp(14px, 3vw, 44px); bottom: clamp(14px, 3vw, 40px); max-width: min(520px, 90%); padding: 22px 26px; border-radius: 16px; background: rgba(20, 16, 10, .66); backdrop-filter: blur(6px); box-shadow: 0 10px 40px rgba(0, 0, 0, .35); pointer-events: none; }
.b-texto a { pointer-events: auto; }
.b-texto h1 { color: #fff; font-size: clamp(24px, 3.4vw, 40px); margin: 0 0 10px; max-width: none; }
.b-texto .sobre { color: #f0c987; margin: 0 0 6px; } .b-texto .bajada { color: #e9e2d0; font-size: 17px; margin: 0 0 10px; }
.b-benef { list-style: none; padding: 0; margin: 0 0 14px; display: grid; gap: 4px; font-size: 15px; }
.b-benef li::before { content: '✓ '; color: #f0c987; font-weight: 700; }
.b-texto .boton { background: var(--acento-2); border-color: var(--acento-2); }
@keyframes cortina { from { --p: 0%; } to { --p: 100%; } }
@keyframes fundido { from { opacity: 0; } to { opacity: 1; } }
@media (max-width: 720px) {
  .b-escena { aspect-ratio: auto; min-height: 0; display: grid; }
  .b-escena > img, .b-vacio { position: relative; height: 230px; grid-area: 1 / 1; }
  .b-texto { position: relative; grid-area: 2 / 1; left: auto; bottom: auto; max-width: none; border-radius: 0; margin: 0; pointer-events: auto; }
}
@media (prefers-reduced-motion: reduce) { .b-escena { animation: none; --p: 100%; } .trans-fundido .b-despues { animation: none; opacity: 1; } }

.b-cred { position: absolute; right: 12px; bottom: 10px; font-size: 11px; padding: 2px 10px; border-radius: 999px; background: rgba(0, 0, 0, .55); color: #e9e2d0; z-index: 2; }
@media (max-width: 720px) { .b-cred { right: 8px; bottom: auto; top: 8px; } }

/* ---- banner de una sola imagen moderna (sin «antes») ---- */
@keyframes lento { from { transform: scale(1); } to { transform: scale(1.07); } }
.banner-simple .b-escena { animation: none; --p: 100%; aspect-ratio: auto; min-height: clamp(460px, 62vh, 680px); display: flex; align-items: center; }
.b-simple .b-despues { clip-path: none; animation: lento 28s ease-out forwards; }
.b-simple::after { content: ''; position: absolute; inset: 0; z-index: 1; background: linear-gradient(90deg, rgba(7, 13, 28, .86) 0%, rgba(7, 13, 28, .55) 42%, rgba(7, 13, 28, .06) 78%); pointer-events: none; }
.b-simple .b-texto { position: relative; z-index: 2; left: auto; bottom: auto; margin-left: max(20px, calc((100% - 1140px) / 2)); max-width: min(560px, 90%); background: none; backdrop-filter: none; box-shadow: none; padding: 20px 0; pointer-events: auto; }
.b-texto h1, .b-texto h2 { color: #fff; font-size: clamp(30px, 4.6vw, 52px); font-weight: 800; margin: 0 0 12px; max-width: none; line-height: 1.08; }
.b-simple .b-texto .bajada { font-size: 18px; }
.b-nota { margin: 10px 0 0; font-size: 13.5px; color: #cfd6e6; }
.b-texto .boton { background: var(--acento-2); border-color: var(--acento-2); color: #101828; box-shadow: 0 10px 28px rgba(0, 0, 0, .35); }
.b-simple .b-cred { top: 12px; bottom: auto; }
@media (max-width: 720px) {
  .banner-simple .b-escena { display: block; min-height: 0; }
  .b-simple .b-despues { position: relative; height: 240px; animation: none; }
  .b-simple::after { display: none; }
  .b-simple .b-texto { margin: 0; max-width: none; padding: 22px 20px; background: #0d1426; }
}
@media (prefers-reduced-motion: reduce) { .b-simple .b-despues { animation: none; } .tarjetas article, .boton, .menu a { transition: none; } }

/* ---- banner de una imagen: foto arriba, banda de texto abajo; admite rotación de imágenes ---- */
.banner-simple .b-escena { display: block; aspect-ratio: 21 / 9; min-height: clamp(260px, 38vw, 640px); animation: none; --p: 100%; background: #0b1222; }
.b-simple::after { display: none; }
.b-simple .b-despues { clip-path: none; animation: none; }
.b-var { opacity: 0; transition: opacity .9s ease; } .b-var.on { opacity: 1; }
.b-banda { background: #0b1222; color: #fff; padding: clamp(28px, 4vw, 54px) 0; }
.b-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: clamp(24px, 5vw, 70px); align-items: center; }
.b-banda h1 { color: #fff; font-size: clamp(30px, 4.2vw, 50px); font-weight: 800; margin: 0 0 12px; max-width: 18ch; line-height: 1.08; }
.b-banda .bajada { color: #c9d2e6; font-size: 18px; margin: 0; max-width: 54ch; }
.b-banda .b-benef { margin: 0 0 20px; font-size: 16.5px; gap: 6px; }
.b-banda .boton { background: var(--acento-2); border-color: var(--acento-2); color: #101828; }
@media (max-width: 820px) { .b-grid { grid-template-columns: 1fr; } .banner-simple .b-escena { aspect-ratio: 16 / 10; min-height: 0; } }
@media (prefers-reduced-motion: reduce) { .b-var { transition: none; } }

/* ajuste: banda compacta para que foto + titular + botón quepan en una pantalla */
.b-banda { padding: clamp(20px, 2.6vw, 38px) 0; }
.b-banda h1 { font-size: clamp(26px, 3.3vw, 42px); max-width: 24ch; margin-bottom: 10px; }
.b-banda .bajada { font-size: 16.5px; }
.b-banda .b-benef { margin-bottom: 14px; font-size: 15.5px; gap: 4px; }
.b-banda .boton { padding: 12px 22px; font-size: 15px; }
.b-banda .b-nota { margin-top: 8px; }
.banner-simple .b-escena { aspect-ratio: 2.55 / 1; }
@media (max-width: 820px) { .banner-simple .b-escena { aspect-ratio: 16 / 10; } .b-banda h1 { font-size: clamp(26px, 7vw, 34px); } }

/* ---- casos reales, medición y página activa del menú ---- */
.casos { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-top: 30px; }
.caso { background: var(--panel); border: 1px solid var(--borde); border-radius: var(--radio); padding: 26px; box-shadow: 0 1px 2px var(--sombra); }
.caso-sector { color: var(--acento-2); font-weight: 700; font-size: 12.5px; letter-spacing: 1.4px; text-transform: uppercase; margin: 0 0 8px; }
.caso-res { background: color-mix(in srgb, var(--acento) 9%, transparent); border-left: 4px solid var(--acento); padding: 10px 14px; border-radius: 0 10px 10px 0; }
.caso blockquote { margin: 12px 0; padding-left: 14px; border-left: 3px solid var(--borde); color: var(--suave); font-style: italic; }
.caso-perm { margin: 12px 0 0; font-size: 13px; color: var(--suave); }
.caso-pend { border: 2px dashed #d33; opacity: .75; } .caso-aviso { color: #b00020; font-weight: 700; font-size: 13px; }
.menu a.act { background: var(--fondo-alt); color: var(--acento); font-weight: 700; }
.medicion { margin: 8px 0 0; font-size: 12.5px; color: var(--suave); }

/* ---- diálogo con la IA ---- */
.dlg { background: var(--panel); border: 1px solid var(--borde); border-radius: var(--radio); padding: clamp(16px, 3vw, 28px); box-shadow: 0 6px 30px var(--sombra); margin-top: 26px; }
.dlg-quien { margin: 0 0 12px; font-weight: 700; } .dlg-quien span { font-weight: 400; color: var(--suave); font-size: 13px; }
.dlg-log { display: flex; flex-direction: column; gap: 10px; max-height: 520px; overflow-y: auto; padding-right: 4px; }
.dlg-m { max-width: 88%; padding: 12px 16px; border-radius: 16px; line-height: 1.5; white-space: pre-wrap; overflow-wrap: anywhere; }
.dlg-ia { align-self: flex-start; background: color-mix(in srgb, var(--acento) 9%, transparent); border-bottom-left-radius: 4px; }
.dlg-v { align-self: flex-end; background: var(--acento); color: #fff; border-bottom-right-radius: 4px; }
.dlg-nota { font-size: 14.5px; color: var(--suave); background: transparent; border: 1px dashed var(--borde); }
.dlg-esp { opacity: .6; font-style: italic; }
.dlg-f { display: flex; gap: 10px; margin-top: 14px; align-items: flex-end; }
.dlg-f textarea { flex: 1; font: inherit; padding: 10px 12px; border: 1px solid var(--borde); border-radius: 12px; resize: vertical; background: var(--panel); color: inherit; }
.dlg-f button, .dlg-correo button { font: inherit; font-weight: 700; padding: 11px 20px; border: 0; border-radius: 12px; background: var(--acento); color: #fff; cursor: pointer; } .dlg-f button:disabled, .dlg-correo button:disabled { opacity: .5; cursor: default; }
.dlg-correo { align-self: stretch; display: grid; gap: 10px; border: 1px solid var(--borde); border-radius: 14px; padding: 14px; background: var(--fondo-alt); }
.dlg-correo label { display: grid; gap: 4px; font-size: 14.5px; } .dlg-correo input[type=email] { font: inherit; padding: 9px 12px; border: 1px solid var(--borde); border-radius: 10px; }
.dlg-correo .dlg-chk { display: flex; gap: 8px; align-items: flex-start; font-size: 13px; color: var(--suave); }
.dlg-priv { font-size: 12.5px; color: var(--suave); margin: 12px 0 0; }

.dlg-chat[hidden], .dlg-intro p[hidden] { display: none; }
.dlg-intro { font-size: clamp(17px, 2vw, 19.5px); line-height: 1.6; }
.dlg-saludo { font-size: clamp(24px, 3.4vw, 32px); font-weight: 800; margin: 0 0 10px; color: var(--acento); letter-spacing: -.01em; }
.dlg-abre { font: inherit; font-weight: 700; font-size: 17px; padding: 14px 26px; border: 0; border-radius: 999px; background: var(--acento-2, var(--acento)); color: #fff; cursor: pointer; box-shadow: 0 6px 18px var(--sombra); transition: transform .15s; }
.dlg-abre:hover { transform: translateY(-1px); } .dlg-falso { display: inline-block; opacity: .85; }
.dlg-intro + .dlg-chat { margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--borde); }