/* Ferranta — hoja única. Paleta «Óxido» (2026-10-18). Lenguaje visual v2: industrial y sobrio
   (esquinas rectas, filetes finos, numeración de sección, estética de plano técnico).
   Contrastes comprobados: texto #17201C y petróleo sobre crema > 9:1; --texto-2 sobre crema 5,9:1;
   cobre de texto #9A5524 sobre crema 4,6:1; blanco sobre botón cobre #A85E2B 4,9:1;
   cobre claro #E3A06B sobre petróleo 5,4:1. El cobre puro #C8743A NO va en texto pequeño. */

:root {
  --petroleo-950: #071C1D;
  --petroleo-900: #0A2B2C;
  --petroleo: #0F3D3E;
  --petroleo-700: #1B5253;
  --petroleo-500: #3D6D6C;
  --petroleo-200: #B9CDC8;
  --petroleo-100: #DCE7E3;
  --cobre: #C8743A;
  --cobre-btn: #A85E2B;
  --cobre-btn-hover: #8F4E22;
  --cobre-texto: #9A5524;
  --cobre-claro: #E3A06B;
  --cobre-50: #F6E7DA;
  --crema: #EDE6DA;
  --crema-50: #F7F3EC;
  --blanco: #FFFDF9;
  --gris: #6E7F73;
  --texto: #17201C;
  --texto-2: #4A5A50;
  --linea: #D9D0C1;
  --linea-fuerte: #BDB2A0;

  --f-tit: 'Barlow', 'IBM Plex Sans', system-ui, sans-serif;
  --f-txt: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --f-mono: 'IBM Plex Mono', ui-monospace, 'Cascadia Mono', monospace;

  --r: 3px;
  --t-rapida: 150ms;
  --t: 240ms;
  --curva: cubic-bezier(.2, .7, .2, 1);
  --hd-h: 76px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: calc(var(--hd-h) + 16px); }
body { margin: 0; background: var(--crema-50); color: var(--texto); font: 400 1.0625rem/1.65 var(--f-txt); -webkit-font-smoothing: antialiased; }
img, svg, video, canvas { max-width: 100%; display: block; }
a { color: var(--petroleo); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--cobre-texto); }
h1, h2, h3, h4 { font-family: var(--f-tit); color: var(--petroleo); margin: 0 0 .5em; line-height: 1.08; letter-spacing: -.01em; text-wrap: balance; }
h1 { font-size: clamp(2.4rem, 5vw, 4.25rem); font-weight: 600; }
h2 { font-size: clamp(1.9rem, 3.2vw, 2.75rem); font-weight: 600; }
h3 { font-size: 1.3rem; font-weight: 600; letter-spacing: 0; }
p { margin: 0 0 1em; text-wrap: pretty; }
.ic { flex: none; display: block; }
:focus-visible { outline: 2px solid var(--cobre); outline-offset: 3px; }
.skip { position: absolute; left: 16px; top: -60px; z-index: 100; background: var(--petroleo); color: #fff; padding: 10px 16px; }
.skip:focus { top: 12px; color: #fff; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }

.wrap { width: 100%; max-width: 1240px; margin: 0 auto; padding: 0 32px; }
@media (max-width: 700px) { .wrap { padding: 0 16px; } }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 48px; padding: 0 22px; border-radius: var(--r); border: 1px solid transparent;
  font: 600 .95rem/1 var(--f-txt); letter-spacing: .01em; text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: background var(--t-rapida), color var(--t-rapida), border-color var(--t-rapida);
}
.btn-primary { background: var(--cobre-btn); color: #fff; }
.btn-primary:hover { background: var(--cobre-btn-hover); color: #fff; }
.btn-dark { background: var(--petroleo); color: #fff; }
.btn-dark:hover { background: var(--petroleo-700); color: #fff; }
.btn-ghost { background: transparent; color: var(--petroleo); border-color: var(--linea-fuerte); }
.btn-ghost:hover { border-color: var(--petroleo); color: var(--petroleo); }
.btn-line-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.45); }
.btn-line-light:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,.06); }
.btn-lg { min-height: 54px; padding: 0 26px; font-size: 1rem; }
.btn .ic { transition: transform var(--t-rapida) var(--curva); }
.btn:hover .ic { transform: translateX(3px); }
.lnk { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; text-decoration: none; border-bottom: 1px solid currentColor; padding-bottom: 2px; }

/* ---------- Tipografía de sección ---------- */
.eyebrow { display: flex; gap: 14px; align-items: baseline; margin: 0 0 18px; font: 500 .82rem/1 var(--f-mono); color: var(--cobre-texto); letter-spacing: .04em; }
.eyebrow b { font-weight: 500; color: var(--texto-2); }
.lead { font-size: clamp(1.06rem, 1.4vw, 1.2rem); color: var(--texto-2); max-width: 60ch; }
.sec { padding: clamp(72px, 9vw, 120px) 0; }
.sec-alt { background: var(--crema); }
.sec-white { background: var(--blanco); }
.sec-dark { background: var(--petroleo-900); color: var(--petroleo-100); }
.sec-dark h2, .sec-dark h3 { color: #fff; }
.sec-dark .eyebrow { color: var(--cobre-claro); }
.sec-dark .eyebrow b { color: var(--petroleo-200); }
.sec-dark .lead { color: var(--petroleo-200); }
.sec-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 32px 64px; align-items: end; margin-bottom: clamp(40px, 5vw, 64px); padding-top: 22px; border-top: 1px solid var(--linea-fuerte); }
.sec-dark .sec-head { border-top-color: var(--petroleo-700); }
.sec-head h2 { margin: 0; }
.sec-head .lead { margin: 0; }
.sec-head.solo { grid-template-columns: 1fr; }
@media (max-width: 860px) { .sec-head { grid-template-columns: 1fr; gap: 16px; } }

/* ---------- Barra superior + cabecera ---------- */
.topbar { background: var(--petroleo-950); color: var(--petroleo-200); font-size: .82rem; }
.topbar .wrap { display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 36px; }
.topbar a { color: var(--petroleo-100); text-decoration: none; }
.topbar a:hover { color: var(--cobre-claro); }
.topbar-r { display: flex; gap: 22px; align-items: center; }
.topbar-r a, .topbar-r span { display: inline-flex; align-items: center; gap: 6px; }
@media (max-width: 700px) { .topbar-l { display: none; } .topbar .wrap { justify-content: flex-end; } }

.hd { position: sticky; top: 0; z-index: 50; background: var(--blanco); border-bottom: 1px solid var(--linea); }
.hd-in { position: relative; display: flex; align-items: center; gap: 28px; height: var(--hd-h); }
.hd-logo { display: flex; align-items: center; flex: none; min-height: 44px; }
.hd-logo .logo { height: 30px; width: auto; }
.nav { display: flex; align-items: center; gap: 2px; flex: 1; }
.nav-link { display: inline-flex; align-items: center; gap: 4px; min-height: 44px; padding: 0 12px; border: 0; background: none; font: 500 .95rem/1 var(--f-txt); color: var(--texto); text-decoration: none; cursor: pointer; white-space: nowrap; position: relative; }
.nav-link::after { content: ""; position: absolute; left: 12px; right: 12px; bottom: 6px; height: 2px; background: var(--cobre); transform: scaleX(0); transform-origin: left; transition: transform var(--t) var(--curva); }
.nav-link:hover { color: var(--petroleo); }
.nav-link:hover::after, .mega-btn[aria-expanded="true"]::after { transform: scaleX(1); }
.nav-link .ic { transition: transform var(--t-rapida); }
.mega-btn[aria-expanded="true"] .ic { transform: rotate(180deg); }
.nav-actions { display: flex; gap: 10px; margin-left: auto; }
.nav-item { position: static; }
.mega {
  position: absolute; left: -32px; right: -32px; top: 100%; background: var(--blanco); border-top: 1px solid var(--linea); border-bottom: 1px solid var(--linea);
  box-shadow: 0 24px 40px rgba(7, 28, 29, .12); padding: 28px 32px 24px;
  opacity: 0; visibility: hidden; transition: opacity var(--t-rapida), visibility 0s linear var(--t-rapida);
}
.mega.open { opacity: 1; visibility: visible; transition-delay: 0s; }
.mega-cols { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px 32px; }
.mega-h { font: 500 .78rem/1 var(--f-mono); color: var(--cobre-texto); letter-spacing: .04em; margin: 0 0 6px; padding-bottom: 10px; border-bottom: 1px solid var(--linea); }
.mega-list { list-style: none; margin: 0 0 14px; padding: 0; }
.mega-link { display: block; padding: 8px 0; text-decoration: none; color: var(--texto); }
.mega-link:hover .mega-name { color: var(--cobre-texto); }
.mega-name { display: block; font-weight: 600; font-size: .95rem; color: var(--petroleo); }
.mega-tag { display: block; font-size: .84rem; line-height: 1.4; color: var(--texto-2); }
.mega-foot { margin-top: 10px; padding-top: 16px; border-top: 1px solid var(--linea); display: flex; justify-content: space-between; gap: 16px; font-size: .9rem; }
.tag-soon { font: 500 .7rem/1 var(--f-mono); color: var(--cobre-texto); border: 1px solid #E2C3A8; padding: 3px 6px; margin-left: 6px; vertical-align: 2px; white-space: nowrap; }

.burger { display: none; margin-left: auto; width: 46px; height: 46px; border: 1px solid var(--linea-fuerte); border-radius: var(--r); background: var(--blanco); color: var(--petroleo); cursor: pointer; place-items: center; }
.burger-close { display: none; }
.burger[aria-expanded="true"] .burger-open { display: none; }
.burger[aria-expanded="true"] .burger-close { display: block; }

@media (max-width: 1120px) {
  .burger { display: grid; }
  .nav { position: fixed; top: var(--nav-top, var(--hd-h)); left: 0; right: 0; bottom: 0; z-index: 49; flex-direction: column; align-items: stretch; gap: 0; background: var(--blanco); padding: 8px 16px 32px; overflow-y: auto; overscroll-behavior: contain; opacity: 0; visibility: hidden; transition: opacity var(--t-rapida), visibility 0s linear var(--t-rapida); }
  .nav.open { opacity: 1; visibility: visible; transition-delay: 0s; }
  .nav-link { min-height: 54px; font-size: 1.06rem; width: 100%; justify-content: space-between; padding: 0 4px; border-bottom: 1px solid var(--linea); }
  .nav-link::after { display: none; }
  .mega { position: static; box-shadow: none; border: 0; padding: 4px 4px 12px; display: none; opacity: 1; visibility: visible; }
  .mega.open { display: block; }
  .mega-cols { grid-template-columns: 1fr; gap: 4px; }
  .mega-foot { flex-direction: column; }
  .nav-actions { margin: 18px 0 0; flex-direction: column; }
  .nav-actions .btn { width: 100%; min-height: 52px; }
  body.nav-lock { overflow: hidden; }
}

/* ---------- Hero con vídeo ---------- */
.hero { position: relative; isolation: isolate; color: #fff; background: var(--petroleo-950); overflow: hidden; }
.hero-media { position: absolute; inset: 0; z-index: -2; }
.hero-media video, .hero-media img { width: 100%; height: 100%; object-fit: cover; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(7,28,29,.95) 0%, rgba(7,28,29,.84) 45%, rgba(7,28,29,.35) 100%); }
.hero-in { min-height: min(80vh, 740px); display: flex; flex-direction: column; justify-content: center; padding-top: 80px; padding-bottom: 48px; }
.hero-txt { max-width: 700px; }
.hero .eyebrow { color: var(--cobre-claro); }
.hero h1 { color: #fff; margin-bottom: 22px; }
.hero .lead { color: var(--petroleo-100); margin-bottom: 34px; font-size: clamp(1.1rem, 1.5vw, 1.25rem); }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-facts { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); margin-top: clamp(48px, 7vw, 88px); border-top: 1px solid rgba(255,255,255,.2); }
.hero-facts div { padding: 20px 24px 0 0; }
.hero-facts b { display: block; font: 600 clamp(1.8rem, 3vw, 2.5rem)/1 var(--f-tit); color: #fff; margin-bottom: 6px; }
.hero-facts span { font-size: .9rem; color: var(--petroleo-200); line-height: 1.45; display: block; }
.hero-pause { position: absolute; right: 24px; bottom: 20px; width: 44px; height: 44px; border-radius: 50%; border: 1px solid rgba(255,255,255,.45); background: rgba(7,28,29,.45); color: #fff; display: grid; place-items: center; cursor: pointer; }
.hero-pause:hover { border-color: #fff; }
.hero-pause[hidden] { display: none; }
.hero-pause .i-play { display: none; }
.hero-pause[aria-pressed="true"] .i-play { display: block; }
.hero-pause[aria-pressed="true"] .i-pause { display: none; }
@media (max-width: 860px) { .hero-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); } .hero::before { background: rgba(7,28,29,.84); } }

/* ---------- Franja de formatos ---------- */
.formats { background: var(--blanco); border-bottom: 1px solid var(--linea); }
.formats .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px 28px; padding-top: 20px; padding-bottom: 20px; }
.formats p { margin: 0; font-size: .95rem; color: var(--texto-2); max-width: 46ch; }
.formats p b { color: var(--petroleo); }
.files { list-style: none; display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; }
.file { position: relative; width: 54px; height: 64px; border: 1px solid var(--linea-fuerte); background: var(--crema-50); display: flex; align-items: flex-end; justify-content: center; padding-bottom: 9px; font: 500 .72rem/1 var(--f-mono); color: var(--petroleo); }
.file::before { content: ""; position: absolute; right: -1px; top: -1px; width: 14px; height: 14px; background: linear-gradient(225deg, var(--blanco) 50%, var(--linea-fuerte) 50%); }
.file.hot { background: var(--petroleo); color: #fff; border-color: var(--petroleo); }

/* ---------- Visor STEP ---------- */
.viewer-grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(0, .65fr); border: 1px solid var(--linea-fuerte); background: var(--blanco); }
.viewer { position: relative; min-height: 480px; border-right: 1px solid var(--linea-fuerte); overflow: hidden;
  background: linear-gradient(var(--crema) 1px, transparent 1px) 0 0 / 24px 24px, linear-gradient(90deg, var(--crema) 1px, transparent 1px) 0 0 / 24px 24px, #FBF8F3; }
.viewer canvas, .viewer > svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.viewer-bar { position: absolute; left: 0; right: 0; top: 0; display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 14px; font: 500 .8rem/1 var(--f-mono); color: var(--texto-2); z-index: 2; pointer-events: none; }
.viewer-bar b { color: var(--petroleo); font-weight: 500; }
.viewer-ctl { position: absolute; left: 14px; bottom: 14px; display: flex; z-index: 2; border: 1px solid var(--linea-fuerte); background: var(--blanco); }
.viewer-ctl button { min-height: 44px; padding: 0 16px; border: 0; background: none; font: 500 .88rem/1 var(--f-txt); color: var(--texto-2); cursor: pointer; }
.viewer-ctl button + button { border-left: 1px solid var(--linea-fuerte); }
.viewer-ctl button[aria-pressed="true"] { background: var(--petroleo); color: #fff; }
.viewer-hint { position: absolute; right: 14px; bottom: 18px; z-index: 2; font: 400 .76rem/1 var(--f-mono); color: var(--texto-2); }
@media (max-width: 960px) { .viewer-grid { grid-template-columns: 1fr; } .viewer { border-right: 0; border-bottom: 1px solid var(--linea-fuerte); min-height: 360px; } .viewer-hint { display: none; } }

/* Hoja de especificaciones (tabla técnica) */
.spec { padding: 22px 24px; display: flex; flex-direction: column; }
.spec-h { font: 500 .78rem/1 var(--f-mono); color: var(--cobre-texto); letter-spacing: .04em; margin: 0 0 10px; }
.spec-t { width: 100%; border-collapse: collapse; font-size: .92rem; }
.spec-t th, .spec-t td { padding: 9px 0; border-bottom: 1px solid var(--linea); text-align: left; vertical-align: top; }
.spec-t th { font-weight: 400; color: var(--texto-2); padding-right: 12px; }
.spec-t td { font-family: var(--f-mono); color: var(--texto); text-align: right; white-space: nowrap; font-variant-numeric: tabular-nums; }
.spec-t tr.tot th, .spec-t tr.tot td { border-bottom: 0; border-top: 2px solid var(--petroleo); padding-top: 12px; font-weight: 600; color: var(--petroleo); }
.spec-t tr.tot td { font-size: 1.3rem; }
.spec-t + .spec-h { margin-top: 20px; }
.spec-note { margin: auto 0 0; padding-top: 16px; font-size: .8rem; line-height: 1.5; color: var(--texto-2); }
.sec-dark .spec-h { color: var(--cobre-claro); }
.sec-dark .spec-t th { color: var(--petroleo-200); }
.sec-dark .spec-t td { color: #fff; }
.sec-dark .spec-t th, .sec-dark .spec-t td { border-bottom-color: var(--petroleo-700); }
.sec-dark .spec-t tr.tot th, .sec-dark .spec-t tr.tot td { border-top-color: var(--cobre-claro); color: var(--cobre-claro); }
.sec-dark .spec-note { color: var(--petroleo-200); }

/* ---------- Pestañas de procesos ---------- */
.tabs { display: flex; flex-wrap: wrap; border-bottom: 1px solid var(--petroleo-700); }
.tab { position: relative; min-height: 56px; padding: 0 24px; border: 0; background: none; color: var(--petroleo-200); font: 600 1.05rem/1 var(--f-tit); letter-spacing: .01em; cursor: pointer; display: inline-flex; align-items: center; gap: 10px; }
.tab .n { font: 400 .75rem/1 var(--f-mono); color: var(--petroleo-500); }
.tab:hover { color: #fff; }
.tab[aria-selected="true"] { color: #fff; }
.tab[aria-selected="true"]::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 3px; background: var(--cobre); }
.tab[aria-selected="true"] .n { color: var(--cobre-claro); }
.panel { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, .7fr); border: 1px solid var(--petroleo-700); border-top: 0; }
.js .panel:not(.on) { display: none; }
.panel + .panel { border-top: 1px solid var(--petroleo-700); }
.js .panel + .panel { border-top: 0; }
.panel-vis { position: relative; min-height: 460px; background: var(--petroleo-950); border-right: 1px solid var(--petroleo-700); overflow: hidden; }
.panel-vis canvas, .panel-vis > svg { position: absolute; inset: 0; width: 100%; height: 100%; }
.panel-vis .viewer-bar { color: var(--petroleo-200); }
.panel-vis .viewer-bar b { color: #fff; }
.panel-txt { padding: 26px 26px 22px; display: flex; flex-direction: column; }
.panel-txt h3 { margin-bottom: 8px; font-size: 1.5rem; }
.panel-txt > p { color: var(--petroleo-200); font-size: .96rem; }
@media (max-width: 960px) { .panel { grid-template-columns: 1fr; } .panel-vis { min-height: 320px; border-right: 0; border-bottom: 1px solid var(--petroleo-700); } .tab { padding: 0 14px; font-size: .95rem; } }
@media (max-width: 560px) { .tab .n { display: none; } .tab { padding: 0 10px; } }

/* Calculadora de plegado */
.calc { display: grid; gap: 10px; margin: 4px 0 18px; }
.calc label { display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; align-items: center; font-size: .88rem; color: var(--petroleo-200); }
.calc output { font: 500 .9rem/1 var(--f-mono); color: #fff; min-width: 70px; text-align: right; }
.calc input[type=range] { grid-column: 1 / -1; width: 100%; accent-color: var(--cobre); height: 30px; margin: 0; cursor: pointer; }
.others { display: flex; flex-wrap: wrap; gap: 10px 28px; margin: 28px 0 0; padding: 0; list-style: none; font-size: .95rem; color: var(--petroleo-200); }
.others li { display: flex; align-items: center; gap: 8px; }
.others .ic { color: var(--cobre-claro); }

/* ---------- Banda de planta (imagen) ---------- */
.band { position: relative; isolation: isolate; color: #fff; overflow: hidden; background: var(--petroleo-950); }
.band > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -2; }
.band::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(0deg, rgba(7,28,29,.97) 0%, rgba(7,28,29,.78) 55%, rgba(7,28,29,.45) 100%); }
.band .wrap { padding-top: clamp(96px, 14vw, 180px); padding-bottom: clamp(56px, 7vw, 88px); }
.band h2 { color: #fff; max-width: 20ch; }
.band .lead { color: var(--petroleo-100); }
.band .eyebrow { color: var(--cobre-claro); }
.band .eyebrow b { color: var(--petroleo-200); }
.plant { list-style: none; margin: 40px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 1px solid rgba(255,255,255,.22); }
.plant li { padding: 22px 24px 0 0; }
.plant b { display: flex; align-items: center; gap: 10px; font: 600 1.15rem/1.25 var(--f-tit); color: #fff; margin-bottom: 6px; }
.plant b .ic { color: var(--cobre-claro); }
.plant span { font-size: .93rem; color: var(--petroleo-100); }
@media (max-width: 960px) { .plant { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .plant { grid-template-columns: 1fr; } }

/* ---------- Índice de la plataforma (lista por áreas) ---------- */
.areas { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 32px; }
.area h3 { font: 500 .8rem/1 var(--f-mono); color: var(--cobre-texto); letter-spacing: .04em; margin: 0; padding: 0 0 14px; border-bottom: 2px solid var(--petroleo); }
.area ul { list-style: none; margin: 0; padding: 0; }
.area li { border-bottom: 1px solid var(--linea); }
.area a { display: grid; grid-template-columns: 1fr 18px; gap: 4px 12px; padding: 16px 0; text-decoration: none; color: var(--texto); }
.area a strong { font: 600 1.15rem/1.25 var(--f-tit); color: var(--petroleo); }
.area a span { grid-column: 1; font-size: .9rem; color: var(--texto-2); line-height: 1.45; }
.area a .ic { grid-row: 1; grid-column: 2; color: var(--linea-fuerte); align-self: center; transition: transform var(--t-rapida), color var(--t-rapida); }
.area a:hover strong { color: var(--cobre-texto); }
.area a:hover .ic { color: var(--cobre); transform: translateX(3px); }
@media (max-width: 1020px) { .areas { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 40px 32px; } }
@media (max-width: 600px) { .areas { grid-template-columns: 1fr; } }

/* Tarjetas sobrias (relacionados) */
.cards { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border-top: 1px solid var(--linea-fuerte); border-left: 1px solid var(--linea-fuerte); }
.cards > li { display: flex; border-right: 1px solid var(--linea-fuerte); border-bottom: 1px solid var(--linea-fuerte); }
.card { display: flex; flex-direction: column; width: 100%; padding: 26px; background: var(--blanco); text-decoration: none; color: var(--texto); transition: background var(--t-rapida); }
a.card:hover { background: #fff; color: var(--texto); }
.card > .ic { color: var(--cobre-texto); margin-bottom: 18px; }
.card h3 { margin-bottom: 6px; }
.card p { margin: 0; color: var(--texto-2); font-size: .95rem; }
.card-go { margin-top: auto; padding-top: 20px; display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: .9rem; color: var(--petroleo); }
a.card:hover .card-go { color: var(--cobre-texto); }
@media (max-width: 960px) { .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .cards { grid-template-columns: 1fr; } }

/* ---------- Precios ---------- */
.plans { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); border: 1px solid var(--linea-fuerte); background: var(--blanco); margin-top: 34px; }
.plan { position: relative; display: flex; flex-direction: column; padding: 28px 22px 24px; border-right: 1px solid var(--linea-fuerte); }
.plan:last-child { border-right: 0; }
.plan.featured { background: var(--petroleo); color: var(--petroleo-100); }
.plan.featured h3, .plan.featured .price b { color: #fff; }
.plan-flag { position: absolute; top: 0; left: 0; right: 0; transform: translateY(-100%); background: var(--cobre-btn); color: #fff; font: 500 .74rem/1 var(--f-mono); letter-spacing: .04em; padding: 10px 12px; }
.plan h3 { font-size: 1.6rem; margin-bottom: 6px; }
.plan-for { font-size: .9rem; color: var(--texto-2); min-height: 4.4em; margin-bottom: 18px; }
.plan.featured .plan-for { color: var(--petroleo-200); }
.price { display: flex; align-items: baseline; gap: 6px; margin-bottom: 4px; }
.price b { font: 600 2.6rem/1 var(--f-tit); color: var(--petroleo); }
.price span { font-size: .88rem; color: var(--texto-2); }
.plan.featured .price span { color: var(--petroleo-200); }
.price-sub { font: 400 .8rem/1.4 var(--f-mono); color: var(--texto-2); margin-bottom: 20px; min-height: 2.8em; }
.plan.featured .price-sub { color: var(--petroleo-200); }
.plan .btn { width: 100%; margin-bottom: 22px; }
.plan.featured .btn-ghost { color: #fff; border-color: rgba(255,255,255,.5); }
.plan-lim { font: 500 .8rem/1.6 var(--f-mono); color: var(--petroleo); padding: 10px 0; border-top: 1px solid var(--linea); border-bottom: 1px solid var(--linea); margin-bottom: 16px; }
.plan.featured .plan-lim { color: var(--cobre-claro); border-color: var(--petroleo-700); }
.plan ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; font-size: .9rem; }
.plan li { display: grid; grid-template-columns: 18px 1fr; gap: 8px; line-height: 1.4; }
.plan li .ic { color: var(--cobre-texto); margin-top: 2px; }
.plan.featured li .ic { color: var(--cobre-claro); }
.plan-inh { font-size: .86rem; font-weight: 600; color: var(--petroleo); margin: 0 0 10px; }
.plan.featured .plan-inh { color: #fff; }
.plans-note { margin: 18px 0 0; font-size: .86rem; color: var(--texto-2); }
@media (max-width: 1180px) { .plans { grid-template-columns: repeat(3, minmax(0, 1fr)); } .plan { border-bottom: 1px solid var(--linea-fuerte); } .plan-flag { position: static; transform: none; margin: -28px -22px 18px; } }
@media (max-width: 760px) { .plans { grid-template-columns: 1fr; } .plan { border-right: 0; } .plan-for, .price-sub { min-height: 0; } }

.cmp-wrap { overflow-x: auto; border: 1px solid var(--linea-fuerte); background: var(--blanco); }
.cmp { width: 100%; min-width: 820px; border-collapse: collapse; font-size: .92rem; }
.cmp th, .cmp td { padding: 12px 14px; border-bottom: 1px solid var(--linea); text-align: center; }
.cmp thead th { background: var(--petroleo); color: #fff; font: 600 1.05rem/1.2 var(--f-tit); }
.cmp thead th:first-child { text-align: left; }
.cmp thead th.feat { background: var(--cobre-btn); }
.cmp tbody th { text-align: left; font-weight: 400; color: var(--texto); }
.cmp tr.grp th { background: var(--crema); font: 500 .78rem/1 var(--f-mono); color: var(--cobre-texto); letter-spacing: .04em; padding: 10px 14px; }
.cmp td .ic { margin: 0 auto; color: var(--petroleo); }
.cmp td.no { color: var(--linea-fuerte); }
.cmp td.txt { font: 400 .84rem/1.3 var(--f-mono); color: var(--petroleo); }
.cmp td.feat { background: rgba(168, 94, 43, .06); }

/* ---------- Implantación ---------- */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); counter-reset: s; border-top: 1px solid var(--petroleo-700); }
.steps li { counter-increment: s; padding: 24px 28px 0 0; }
.steps li::before { content: counter(s, decimal-leading-zero); display: block; font: 600 2.2rem/1 var(--f-tit); color: var(--cobre-claro); margin-bottom: 14px; }
.steps b { display: block; font: 600 1.18rem/1.25 var(--f-tit); color: #fff; margin-bottom: 6px; }
.steps span { font-size: .94rem; color: var(--petroleo-200); }
@media (max-width: 960px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }

/* ---------- Integraciones ---------- */
.logos { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); border-top: 1px solid var(--linea-fuerte); border-left: 1px solid var(--linea-fuerte); }
.logos li { display: flex; flex-direction: column; align-items: center; justify-content: center; min-height: 96px; padding: 12px; border-right: 1px solid var(--linea-fuerte); border-bottom: 1px solid var(--linea-fuerte); font: 600 1.1rem/1.2 var(--f-tit); color: var(--petroleo); text-align: center; background: var(--blanco); }
.logos li small { display: block; font: 400 .72rem/1.2 var(--f-mono); color: var(--cobre-texto); margin-top: 6px; }
@media (max-width: 960px) { .logos { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 520px) { .logos { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.intl { margin-top: 48px; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 24px 64px; padding-top: 28px; border-top: 1px solid var(--linea-fuerte); }
.intl h3 { font-size: 1.6rem; }
.intl p { color: var(--texto-2); margin: 0; }
.intl small { display: block; font: 400 .88rem/1.9 var(--f-mono); color: var(--petroleo); }
@media (max-width: 860px) { .intl { grid-template-columns: 1fr; } }

/* ---------- Academy ---------- */
.acad { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); border: 1px solid var(--linea-fuerte); background: var(--blanco); }
.acad-txt { padding: clamp(28px, 4vw, 52px); }
.acad-txt p { color: var(--texto-2); }
.acad-vis { position: relative; background: var(--petroleo); min-height: 320px; overflow: hidden; }
.acad-vis svg { position: absolute; inset: 0; width: 100%; height: 100%; }
@media (max-width: 860px) { .acad { grid-template-columns: 1fr; } .acad-vis { min-height: 240px; order: -1; } }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--linea-fuerte); }
.faq details { border-bottom: 1px solid var(--linea-fuerte); }
.faq summary { list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; padding: 22px 0; cursor: pointer; font: 600 1.18rem/1.3 var(--f-tit); color: var(--petroleo); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .ic { flex: none; transition: transform var(--t) var(--curva); color: var(--cobre-texto); }
.faq details[open] summary .ic { transform: rotate(45deg); }
.faq summary:hover { color: var(--cobre-texto); }
.faq .a { padding: 0 0 24px; color: var(--texto-2); max-width: 75ch; }
.faq-grid { display: grid; grid-template-columns: minmax(0, .75fr) minmax(0, 1.25fr); gap: 32px 64px; align-items: start; }
.faq-grid > div:first-child { padding-top: 22px; border-top: 1px solid var(--linea-fuerte); }
@media (max-width: 860px) { .faq-grid { grid-template-columns: 1fr; } }

/* ---------- CTA final y formulario ---------- */
.final { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(32px, 6vw, 80px); align-items: start; }
.final .lead { color: var(--petroleo-200); }
.final-contact { list-style: none; padding: 0; margin: 32px 0 0; border-top: 1px solid var(--petroleo-700); }
.final-contact li { display: flex; align-items: center; gap: 12px; padding: 14px 0; border-bottom: 1px solid var(--petroleo-700); color: var(--petroleo-100); }
.final-contact a { color: #fff; }
.final-contact a:hover { color: var(--cobre-claro); }
.final-contact .ic { color: var(--cobre-claro); }
@media (max-width: 900px) { .final { grid-template-columns: 1fr; } }

.form { background: var(--blanco); color: var(--texto); padding: clamp(22px, 3.5vw, 36px); display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; border-top: 4px solid var(--cobre-btn); }
.form .full { grid-column: 1 / -1; }
.field label { display: block; font-weight: 600; font-size: .9rem; color: var(--petroleo); margin-bottom: 6px; }
.field input, .field select, .field textarea { width: 100%; min-height: 48px; padding: 11px 14px; border: 1px solid var(--linea-fuerte); border-radius: var(--r); background: var(--crema-50); font: 400 1rem/1.4 var(--f-txt); color: var(--texto); transition: border-color var(--t-rapida), box-shadow var(--t-rapida), background var(--t-rapida); }
.field textarea { min-height: 120px; resize: vertical; }
.field input:hover, .field select:hover, .field textarea:hover { border-color: var(--gris); }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--petroleo); background: #fff; box-shadow: 0 0 0 3px rgba(15, 61, 62, .14); }
.field .err, .check .err { display: none; margin: 6px 0 0; font-size: .86rem; color: #A3271F; }
.field.bad input, .field.bad select, .field.bad textarea { border-color: #A3271F; }
.field.bad .err, .check.bad .err { display: block; }
.check { display: grid; grid-template-columns: 22px 1fr; gap: 10px; align-items: start; font-size: .9rem; color: var(--texto-2); }
.check input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--petroleo); }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-msg { grid-column: 1 / -1; margin: 0; padding: 12px 14px; font-size: .95rem; display: none; }
.form-msg.ok { display: block; background: #E4F2EA; color: #1F5C3B; }
.form-msg.ko { display: block; background: #FBE7E4; color: #8A2018; }
.form .btn { justify-self: start; }
.form .btn[disabled] { opacity: .7; cursor: progress; }
@media (max-width: 600px) { .form { grid-template-columns: 1fr; } .form .btn { width: 100%; } }

/* ---------- Página de módulo ---------- */
.mhero { padding: clamp(40px, 6vw, 80px) 0; background: var(--blanco); border-bottom: 1px solid var(--linea); }
.crumbs { display: flex; flex-wrap: wrap; gap: 6px; list-style: none; margin: 0 0 28px; padding: 0; font: 400 .82rem/1.4 var(--f-mono); color: var(--texto-2); }
.crumbs a { color: var(--texto-2); }
.crumbs li + li::before { content: "/"; margin-right: 6px; color: var(--linea-fuerte); }
.mhero-in { display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .75fr); gap: 32px 64px; align-items: end; }
.mhero h1 { font-size: clamp(2.1rem, 4.2vw, 3.4rem); }
.mhero .lead { margin-bottom: 28px; }
.mhero-side { border-left: 1px solid var(--linea-fuerte); padding-left: 28px; }
.mhero-side > .ic { color: var(--cobre-texto); margin-bottom: 14px; }
.mhero-side p { font-size: .95rem; color: var(--texto-2); }
@media (max-width: 860px) { .mhero-in { grid-template-columns: 1fr; } .mhero-side { border-left: 0; padding-left: 0; border-top: 1px solid var(--linea-fuerte); padding-top: 22px; } }
.feats { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 40px; }
.feats li { padding: 22px 0 28px; border-top: 1px solid var(--linea-fuerte); }
.feats b { display: block; font: 600 1.18rem/1.3 var(--f-tit); color: var(--petroleo); margin-bottom: 8px; }
.feats b .n { font: 400 .78rem/1 var(--f-mono); color: var(--cobre-texto); margin-right: 8px; }
.feats span { font-size: .95rem; color: var(--texto-2); }
@media (max-width: 960px) { .feats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .feats { grid-template-columns: 1fr; } }
.cta-band { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; padding: clamp(28px, 4vw, 44px); background: var(--petroleo); color: var(--petroleo-200); border-left: 4px solid var(--cobre); }
.cta-band h2 { color: #fff; font-size: clamp(1.5rem, 2.6vw, 2rem); margin-bottom: 6px; }
.cta-band p { margin: 0; }

/* ---------- Textos legales ---------- */
.prose { max-width: 760px; }
.prose h2 { font-size: 1.45rem; margin-top: 1.8em; }
.prose p, .prose li { color: var(--texto-2); }
.prose .aviso { padding: 14px 16px; background: var(--cobre-50); color: var(--cobre-texto); font-size: .92rem; border-left: 3px solid var(--cobre); }

/* ---------- Pie ---------- */
.ft { background: var(--petroleo-950); color: var(--petroleo-200); padding: 72px 0 28px; }
.ft a { color: var(--petroleo-100); text-decoration: none; }
.ft a:hover { color: var(--cobre-claro); text-decoration: underline; }
.ft-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1.6fr) minmax(0, .8fr); gap: 48px; padding-bottom: 48px; border-bottom: 1px solid var(--petroleo-700); }
.ft-brand .logo { height: 32px; width: auto; margin-bottom: 18px; }
.ft-brand p { max-width: 34ch; font-size: .95rem; }
.ft-was { font-size: .88rem; }
.ft-was a { text-decoration: underline; }
.ft-h { font: 500 .78rem/1 var(--f-mono); color: var(--cobre-claro); letter-spacing: .04em; margin: 0 0 16px; }
.ft-list { list-style: none; margin: 0 0 28px; padding: 0; display: grid; gap: 10px; font-size: .94rem; }
.ft-cols { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 24px; }
.ft-linkbtn { background: none; border: 0; padding: 0; color: var(--petroleo-100); font: inherit; cursor: pointer; text-align: left; }
.ft-linkbtn:hover { color: var(--cobre-claro); text-decoration: underline; }
.ft-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; padding-top: 24px; font-size: .86rem; }
.ft-langs { display: inline-flex; align-items: center; gap: 10px; }
.ft-langs a[aria-current] { color: var(--cobre-claro); }
@media (max-width: 900px) { .ft-grid { grid-template-columns: 1fr; gap: 32px; } }
@media (max-width: 420px) { .ft-cols { grid-template-columns: 1fr; } }

/* ---------- Cookies ---------- */
.ck { position: fixed; z-index: 60; left: 16px; right: 16px; bottom: 16px; max-width: 560px; margin-left: auto; padding: 18px 20px; background: var(--blanco); border: 1px solid var(--linea-fuerte); border-top: 3px solid var(--petroleo); box-shadow: 0 18px 40px rgba(7,28,29,.18); }
.ck p { margin: 0 0 12px; font-size: .92rem; color: var(--texto-2); }
.ck-btns { display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end; }
@media (max-width: 480px) { .ck-btns .btn { flex: 1; } }

/* ---------- Aparición (solo con JS y sin reduced-motion) ---------- */
.js .rv { opacity: 0; transform: translateY(12px); transition: opacity 600ms var(--curva), transform 600ms var(--curva); }
.js .rv.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 1ms !important; animation-duration: 1ms !important; animation-iteration-count: 1 !important; }
  .js .rv { opacity: 1; transform: none; }
}