/* =================================================================
   BIOMETANO — Sistema de diseño compartido (todas las páginas)
   ================================================================= */
:root{
  --bg: oklch(0.985 0.003 90);
  --bg-2: oklch(0.965 0.004 90);
  --bg-3: oklch(0.94 0.005 90);
  --ink: oklch(0.28 0.008 70);
  --ink-2: oklch(0.46 0.008 70);
  --ink-3: oklch(0.62 0.008 70);
  --line: oklch(0.88 0.006 80);
  --line-2: oklch(0.80 0.008 80);
  --accent: oklch(0.72 0.165 55);
  --accent-ink: oklch(0.56 0.175 50);
  --accent-soft: oklch(0.92 0.06 60);
  --serif: "Fraunces", "Times New Roman", serif;
  --sans: "Inter Tight", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}
*{box-sizing:border-box; margin:0; padding:0}
html{scroll-behavior:smooth}
html,body{background:var(--bg); color:var(--ink); font-family:var(--sans); font-weight:400; -webkit-font-smoothing:antialiased;}
body{font-size:15px; line-height:1.55;}
a{color:inherit; text-decoration:none}
img,svg{display:block; max-width:100%}

.wrap{max-width:1480px; margin:0 auto; padding:0 40px}
@media (max-width:720px){ .wrap{padding:0 20px} }

/* ---------- NAV ---------- */
.nav{position:sticky; top:0; z-index:50; background:color-mix(in oklab, var(--bg) 86%, transparent); backdrop-filter:blur(12px); border-bottom:1px solid var(--line);}
.nav-in{display:flex; align-items:center; height:72px; gap:20px}
.nav-in > .brand{flex-shrink:0}
.nav-in > nav{flex:1; display:flex; justify-content:center; min-width:0}
.brand{display:flex; align-items:center; gap:10px}
.brand img{height:28px; width:auto}
.nav .nav-list{display:flex; gap:8px; list-style:none; font-size:13px; color:var(--ink-2); font-weight:500; flex-wrap:nowrap; align-items:center}
.nav .nav-list > li{position:relative}
.nav .nav-list > li > a,
.nav .nav-list > li > button{display:inline-flex; align-items:center; gap:6px; padding:10px 12px; font: inherit; color:var(--ink-2); background:transparent; border:0; cursor:pointer; transition:color .15s; position:relative; border-radius:6px}
.nav .nav-list > li > a:hover,
.nav .nav-list > li > button:hover,
.nav .nav-list > li.has-sub:hover > a,
.nav .nav-list > li.has-sub:hover > button,
.nav .nav-list > li.has-sub:focus-within > a,
.nav .nav-list > li.has-sub:focus-within > button{color:var(--accent-ink)}
.nav .nav-list > li > a.active,
.nav .nav-list > li > button.active{color:var(--ink)}
.nav .nav-list > li > a.active::after,
.nav .nav-list > li > button.active::after{content:""; position:absolute; left:12px; right:12px; bottom:2px; height:2px; background:var(--accent)}
.nav-caret{margin-left:2px; opacity:.55; transition: transform .2s ease, opacity .2s ease}
.nav .nav-list > li.has-sub:hover .nav-caret,
.nav .nav-list > li.has-sub:focus-within .nav-caret{transform:rotate(180deg); opacity:1}

/* Dropdown panel (mega-menu) */
.sub-panel{position:absolute; top:calc(100% + 8px); left:50%; transform:translateX(-50%) translateY(6px); min-width:340px; max-width:420px; background:var(--bg); border:1px solid var(--line); border-top:2px solid var(--accent); padding:14px; opacity:0; visibility:hidden; pointer-events:none; transition: opacity .18s ease, transform .22s cubic-bezier(.2,.7,.2,1), visibility 0s linear .22s; box-shadow: 0 24px 60px -28px oklch(0 0 0 / 0.22); z-index:51; border-radius:4px}
.sub-panel::before{content:""; position:absolute; top:-10px; left:0; right:0; height:10px}
.nav .nav-list > li.has-sub:hover .sub-panel,
.nav .nav-list > li.has-sub:focus-within .sub-panel{opacity:1; visibility:visible; pointer-events:auto; transform:translateX(-50%) translateY(0); transition-delay:0s, 0s, 0s}
.sub-panel ul{display:flex; flex-direction:column; gap:0; list-style:none; padding:0; margin:0}
.sub-panel li > a{display:block; padding:12px 14px; border-radius:3px; color:var(--ink); transition: background .15s ease, color .15s ease}
.sub-panel li > a:hover{background:var(--bg-2); color:var(--ink)}
.sub-panel .sub-title{display:flex; align-items:center; justify-content:space-between; font-size:14px; font-weight:500; color:var(--ink); letter-spacing:-0.005em}
.sub-panel .sub-desc{display:block; margin-top:3px; font-size:12px; color:var(--ink-3); line-height:1.4; max-width:42ch}
.sub-panel li.is-meta{margin-top:6px; padding-top:10px; border-top:1px solid var(--line)}
.sub-panel li.is-meta .sub-title{font-family:var(--mono); font-size:11px; letter-spacing:0.14em; text-transform:uppercase; color:var(--accent-ink); font-weight:500}
.sub-panel .sub-arrow{color:var(--accent-ink); font-weight:400; transition: transform .2s ease}
.sub-panel li > a:hover .sub-arrow{transform: translateX(3px)}

/* Wider panel for Sectores list */
.nav .nav-list > li.has-sub:nth-child(5) .sub-panel{min-width:380px}

.nav-cta{font-size:13px; padding:10px 18px; border-radius:999px; background:var(--ink); color:var(--bg); transition:transform .2s ease, background .2s ease; font-weight:500; display:inline-flex; align-items:center; gap:8px}
.nav-cta:hover{transform:translateY(-1px); background:var(--accent-ink)}
.nav-li{display:inline-flex; align-items:center; justify-content:center; width:34px; height:34px; border:1px solid var(--line-2); border-radius:50%; color:var(--ink-2); transition: all .2s; flex-shrink:0}
.nav-li:hover{background:#0a66c2; color:#fff; border-color:#0a66c2}
@media (max-width:1280px){ .nav .nav-list{gap:2px; font-size:12.5px} .nav .nav-list > li > a, .nav .nav-list > li > button{padding:10px 10px} }
@media (max-width:1100px){ .nav .nav-list{display:none} .nav .nav-burger{display:flex} .nav .nav-li{display:none} }

/* Burger button */
.nav-burger{display:none; width:44px; height:44px; border:1px solid var(--line-2); background:transparent; border-radius:50%; cursor:pointer; align-items:center; justify-content:center; padding:0; gap:5px; flex-direction:column; flex-shrink:0; transition: all .2s}
.nav-burger:hover{border-color:var(--ink)}
.nav-burger span{display:block; width:18px; height:2px; background:var(--ink); transition: all .25s ease}
.nav-burger.is-open span:nth-child(1){transform: translateY(7px) rotate(45deg)}
.nav-burger.is-open span:nth-child(2){opacity:0}
.nav-burger.is-open span:nth-child(3){transform: translateY(-7px) rotate(-45deg)}

/* Drawer */
.nav-drawer{position:fixed; top:0; right:0; width:min(380px, 92vw); height:100vh; background:var(--bg); border-left:1px solid var(--line); padding:96px 28px 32px; z-index:49; transform:translateX(100%); transition: transform .35s cubic-bezier(.2,.7,.2,1); overflow-y:auto; box-shadow: -20px 0 60px -20px oklch(0 0 0 / 0.15)}
.nav-drawer[data-open="true"]{transform:translateX(0)}
.nav-drawer .drawer-list{list-style:none; display:flex; flex-direction:column; gap:0; padding:0; margin:0 0 24px}
.nav-drawer .drawer-list > li{border-bottom:1px solid var(--line)}
.nav-drawer .drawer-list > li > a{display:block; padding:16px 0; font-family:var(--serif); font-size:24px; font-weight:300; letter-spacing:-0.01em; color:var(--ink); transition:color .15s}
.nav-drawer .drawer-list > li > a:hover, .nav-drawer .drawer-list > li > a.active{color:var(--accent-ink)}
.nav-drawer .drawer-list > li > a.active{font-style:italic}
.nav-drawer .d-toggle{width:100%; display:flex; align-items:center; justify-content:space-between; padding:16px 0; font-family:var(--serif); font-size:24px; font-weight:300; letter-spacing:-0.01em; color:var(--ink); background:transparent; border:0; cursor:pointer; text-align:left}
.nav-drawer .d-toggle .nav-caret{width:12px; height:8px; opacity:.6; transition: transform .25s ease}
.nav-drawer .has-sub-d.is-open .d-toggle .nav-caret{transform: rotate(180deg); opacity:1}
.nav-drawer .d-toggle.active{color:var(--accent-ink); font-style:italic}
.nav-drawer .d-sub{list-style:none; display:none; padding:0 0 14px 4px; margin:0; gap:0}
.nav-drawer .has-sub-d.is-open .d-sub{display:block}
.nav-drawer .d-sub li{border-bottom:0}
.nav-drawer .d-sub a{display:block; padding:8px 0; font-family:var(--sans); font-size:14.5px; font-weight:400; color:var(--ink-2); border-bottom:0}
.nav-drawer .d-sub a:hover{color:var(--accent-ink)}
.nav-drawer .d-sub a.is-meta{font-family:var(--mono); font-size:11px; letter-spacing:0.14em; text-transform:uppercase; color:var(--accent-ink); margin-top:4px}
.nav-drawer-actions{display:flex; flex-direction:column; gap:14px; padding-top:24px; border-top:1px solid var(--line)}
.nav-drawer-link{font-family:var(--mono); font-size:12px; letter-spacing:0.12em; text-transform:uppercase; color:var(--ink-2); padding:6px 0}
.nav-drawer-link:hover{color:var(--accent-ink)}

/* ---------- BREADCRUMBS ---------- */
.crumbs{padding:18px 0; border-bottom:1px solid var(--line); font-family:var(--mono); font-size:11px; letter-spacing:0.1em; color:var(--ink-3); text-transform:uppercase}
.crumbs a{color:var(--ink-3); transition:color .15s}
.crumbs a:hover{color:var(--accent-ink)}
.crumbs span{margin:0 10px; color:var(--line-2)}
.crumbs b{color:var(--ink); font-weight:500}

/* ---------- HERO PÁGINA INTERNA ---------- */
.page-hero{padding:80px 0 70px; border-bottom:1px solid var(--line); position:relative}
.page-hero .eyebrow{font-family:var(--mono); font-size:11px; letter-spacing:0.18em; text-transform:uppercase; color:var(--ink-3); display:inline-flex; align-items:center; gap:12px;}
.page-hero .eyebrow::before{content:""; width:32px; height:1px; background:var(--accent)}
.page-hero h1{font-family:var(--serif); font-weight:300; font-size:clamp(42px, 6vw, 84px); line-height:0.98; letter-spacing:-0.03em; margin-top:24px; max-width:22ch; font-variation-settings: "opsz" 144;}
.page-hero h1 em{font-style:italic; color:var(--accent-ink); font-weight:400}
.page-hero .lede{font-size:19px; line-height:1.45; color:var(--ink-2); max-width:62ch; margin-top:32px; text-wrap:pretty}
.page-hero-grid{display:grid; grid-template-columns: 1.5fr 1fr; gap:60px; align-items:end; margin-top:48px}
.page-hero-meta{display:flex; flex-direction:column; gap:18px; font-size:13px; color:var(--ink-3); border-left:2px solid var(--accent); padding-left:24px}
.page-hero-meta dt{font-family:var(--mono); font-size:10.5px; letter-spacing:0.12em; text-transform:uppercase}
.page-hero-meta dd{color:var(--ink); font-size:14px; margin-top:4px; font-weight:500}
@media (max-width:900px){ .page-hero-grid{grid-template-columns:1fr; gap:32px} }

/* ---------- SECCIONES ---------- */
section{padding:110px 0; border-bottom:1px solid var(--line)}
.sec-head{display:grid; grid-template-columns: 240px 1fr; gap:48px; margin-bottom:64px; align-items:start}
.sec-num{font-family:var(--mono); font-size:11.5px; color:var(--ink-3); letter-spacing:0.14em; text-transform:uppercase}
.sec-num b{display:block; color:var(--accent-ink); font-weight:500; margin-top:6px}
.sec-title{font-family:var(--serif); font-weight:300; font-size:clamp(36px, 4.6vw, 60px); line-height:1; letter-spacing:-0.028em; max-width:22ch; font-variation-settings: "opsz" 144;}
.sec-title em{font-style:italic; color:var(--accent-ink); font-weight:400}
.sec-lede{margin-top:22px; color:var(--ink-2); max-width:60ch; font-size:16px; line-height:1.55}
@media (max-width:900px){ .sec-head{grid-template-columns:1fr; gap:14px} }

/* ---------- TEXTO LARGO ---------- */
.prose{max-width:72ch; font-size:16.5px; line-height:1.65; color:var(--ink-2)}
.prose h2{font-family:var(--serif); font-weight:300; font-size:34px; letter-spacing:-0.02em; color:var(--ink); margin:48px 0 16px}
.prose h3{font-family:var(--serif); font-weight:400; font-size:24px; letter-spacing:-0.01em; color:var(--ink); margin:32px 0 12px}
.prose p{margin-bottom:18px; text-wrap:pretty}
.prose ul, .prose ol{margin:14px 0 22px 22px}
.prose li{margin-bottom:8px}
.prose strong{color:var(--ink); font-weight:500}
.prose a{color:var(--accent-ink); border-bottom:1px solid color-mix(in oklab, var(--accent-ink) 35%, transparent); transition:border-color .15s}
.prose a:hover{border-color:var(--accent-ink)}

/* ---------- BOTONES ---------- */
.btn-primary{background:var(--accent); color:var(--ink); padding:14px 22px; border-radius:999px; font-size:14px; font-weight:500; display:inline-flex; align-items:center; gap:10px; transition: all .2s; cursor:pointer; border:0}
.btn-primary:hover{background:var(--accent-ink); color:var(--bg)}
.btn-ghost{padding:14px 20px; font-size:14px; color:var(--ink-2); display:inline-flex; align-items:center; gap:8px; border:1px solid var(--line-2); border-radius:999px; transition: all .2s}
.btn-ghost:hover{color:var(--ink); border-color:var(--ink)}
.arrow{width:14px; height:14px; display:inline-block}

/* ---------- TARJETAS HUB / ENLACE ---------- */
.hub-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
.hub-card{border:1px solid var(--line); background:var(--bg-2); padding:32px 30px; min-height:220px; display:flex; flex-direction:column; justify-content:space-between; position:relative; transition: all .2s}
.hub-card:hover{background:var(--bg-3); border-color:var(--ink-3); transform:translateY(-2px)}
.hub-card .ix{font-family:var(--mono); font-size:10.5px; color:var(--accent-ink); letter-spacing:0.14em; text-transform:uppercase}
.hub-card h3{font-family:var(--serif); font-size:28px; font-weight:300; letter-spacing:-0.02em; line-height:1.05; margin-top:14px; max-width:18ch}
.hub-card p{color:var(--ink-2); font-size:14px; margin-top:10px; max-width:36ch}
.hub-card .more{font-family:var(--mono); font-size:11px; color:var(--accent-ink); letter-spacing:0.14em; text-transform:uppercase; margin-top:24px; display:inline-flex; align-items:center; gap:8px}
.hub-card-img{padding:0; overflow:hidden}
.hub-card-img .hub-img{aspect-ratio:16/10; overflow:hidden; border-bottom:1px solid var(--line)}
.hub-card-img .hub-img img{width:100%; height:100%; object-fit:cover; transition:transform .4s ease}
.hub-card-img:hover .hub-img img{transform:scale(1.04)}
.hub-card-img > div:not(.hub-img){padding:24px 28px 8px}
.hub-card-img .more{padding:0 28px 24px; margin-top:14px}
@media (max-width:900px){ .hub-grid{grid-template-columns:1fr} }

/* ---------- TABLA TÉCNICA ---------- */
.tech-table{border:1px solid var(--line); background:var(--bg-2); overflow:hidden}
.tech-table .row{display:grid; padding:16px 22px; border-bottom:1px solid var(--line); font-size:14px; align-items:baseline}
.tech-table .row:last-child{border-bottom:0}
.tech-table .row.head{background:var(--ink); color:var(--bg); font-family:var(--mono); font-size:11px; letter-spacing:0.14em; text-transform:uppercase}
.tech-table .row.head > div{color:oklch(0.78 0.008 80)}
.tech-table b{font-family:var(--serif); font-weight:400; color:var(--ink)}
.tech-table .val{font-family:var(--serif); font-size:22px; font-weight:300; color:var(--accent-ink); letter-spacing:-0.01em; line-height:1}
.tech-table .unit{font-family:var(--mono); font-size:12px; color:var(--ink-3); letter-spacing:0.04em}

/* ---------- "CUÁNDO CONVIENE" ---------- */
.fit-grid{display:grid; grid-template-columns:1fr 1fr; gap:14px}
.fit-card{border:1px solid var(--line); padding:32px; background:var(--bg-2)}
.fit-card.yes{border-top:3px solid var(--accent)}
.fit-card.no{border-top:3px solid var(--ink-3)}
.fit-card h4{font-family:var(--serif); font-size:24px; font-weight:300; letter-spacing:-0.01em; margin-bottom:6px}
.fit-card .chip{font-family:var(--mono); font-size:10.5px; letter-spacing:0.14em; text-transform:uppercase; color:var(--ink-3)}
.fit-card.yes .chip{color:var(--accent-ink)}
.fit-card ul{list-style:none; margin-top:20px; display:flex; flex-direction:column; gap:10px; font-size:14.5px; color:var(--ink-2)}
.fit-card.yes ul li::before{content:"✓ "; color:var(--accent); font-weight:600; margin-right:6px}
.fit-card.no ul li::before{content:"– "; color:var(--ink-3); margin-right:6px}
@media (max-width:820px){ .fit-grid{grid-template-columns:1fr} }

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--ink)}
details{border-bottom:1px solid var(--line); padding:24px 0}
details summary{cursor:pointer; display:flex; justify-content:space-between; align-items:center; gap:24px; font-family:var(--serif); font-size:24px; font-weight:300; letter-spacing:-0.02em; list-style:none; line-height:1.2}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+"; font-family:var(--serif); font-size:30px; color:var(--accent); font-weight:300; transition:transform .2s}
details[open] summary::after{content:"–"}
details[open] summary{color:var(--accent-ink)}
details p{color:var(--ink-2); font-size:15.5px; margin-top:14px; max-width:72ch; line-height:1.6}
details ul{margin:14px 0 0 22px; color:var(--ink-2); font-size:15px}

/* ---------- CTA INLINE ---------- */
.cta-inline{background:var(--ink); color:var(--bg); padding:60px 56px; border-radius:6px; display:grid; grid-template-columns:1.6fr auto; gap:48px; align-items:center; margin:60px 0}
.cta-inline h3{font-family:var(--serif); font-size:34px; font-weight:300; letter-spacing:-0.02em; line-height:1.05}
.cta-inline h3 em{font-style:italic; color:var(--accent)}
.cta-inline p{color:oklch(0.78 0.01 80); margin-top:10px; font-size:15px; max-width:54ch}
.cta-inline .btn-primary{background:var(--accent)}
@media (max-width:820px){ .cta-inline{grid-template-columns:1fr; padding:36px 28px} }

/* ---------- ARTÍCULOS RELACIONADOS ---------- */
.related{display:grid; grid-template-columns:repeat(3,1fr); gap:14px; margin-top:32px}
.related a{border:1px solid var(--line); padding:24px; background:var(--bg-2); transition:all .2s; display:block}
.related a:hover{background:var(--bg-3); border-color:var(--ink-3)}
.related .chip{font-family:var(--mono); font-size:10.5px; color:var(--accent-ink); letter-spacing:0.14em; text-transform:uppercase}
.related h4{font-family:var(--serif); font-size:20px; font-weight:300; letter-spacing:-0.01em; line-height:1.15; margin-top:10px}
@media (max-width:820px){ .related{grid-template-columns:1fr} }

/* ---------- FOOTER ---------- */
footer{background:var(--ink); color:oklch(0.72 0.01 80); padding:80px 0 36px; font-size:13px}
.foot{display:grid; grid-template-columns: 1.6fr repeat(5, 1fr); gap:36px}
.foot h5{font-family:var(--mono); font-size:11px; text-transform:uppercase; letter-spacing:0.14em; color:oklch(0.55 0.008 70); margin-bottom:16px}
.foot ul{list-style:none; display:flex; flex-direction:column; gap:9px}
.foot a{transition:color .15s}
.foot a:hover{color:var(--accent)}
.foot-brand img{height:32px; filter: brightness(0) invert(1); margin-bottom:18px}
.foot-desc{max-width:42ch; color:oklch(0.64 0.008 70); font-size:13.5px; line-height:1.55}
.foot-contact{margin-top:48px; padding-top:24px; border-top:1px solid oklch(0.36 0.008 70); display:grid; grid-template-columns:repeat(4, max-content); gap:48px; font-size:14px}
.foot-contact a{color:#fff; font-weight:500}
.foot-contact a:hover{color:var(--accent)}
.foot-label{display:block; font-family:var(--mono); font-size:10.5px; letter-spacing:0.14em; text-transform:uppercase; color:oklch(0.55 0.008 70); margin-bottom:6px}
.foot-bottom{margin-top:32px; padding-top:24px; border-top:1px solid oklch(0.36 0.008 70); display:flex; justify-content:space-between; gap:20px; flex-wrap:wrap; font-family:var(--mono); font-size:11px; letter-spacing:0.1em; color:oklch(0.6 0.008 70); text-transform:uppercase}
.foot-bottom a{color:inherit}
.foot-bottom a:hover{color:var(--accent)}
.foot-legal{display:inline-flex; gap:14px; flex-wrap:wrap; align-items:center}
.foot-legal span[aria-hidden]{color:oklch(0.5 0.008 70)}

/* Back-to-top */
.btt{position:fixed; left:24px; bottom:24px; z-index:55; width:42px; height:42px; border-radius:50%; border:1px solid var(--line-2); background:var(--bg); color:var(--ink); display:inline-flex; align-items:center; justify-content:center; cursor:pointer; opacity:0; transform:translateY(8px); pointer-events:none; transition: opacity .25s ease, transform .25s ease, background .2s, color .2s, border-color .2s; box-shadow: 0 8px 24px -10px oklch(0 0 0 / 0.18)}
.btt.on{opacity:1; transform:translateY(0); pointer-events:auto}
.btt:hover{background:var(--ink); color:var(--bg); border-color:var(--ink)}
.btt svg{width:14px; height:14px}
@media (max-width:700px){ .btt{left:auto; right:24px; bottom:88px} }
@media (max-width:1100px){ .foot{grid-template-columns:1fr 1fr 1fr} }
@media (max-width:680px){ .foot{grid-template-columns:1fr 1fr} }

/* ---------- WHATSAPP ---------- */
.wa{position:fixed; bottom:24px; right:24px; z-index:60; background:var(--accent); color:var(--ink); padding:13px 20px; border-radius:999px; font-size:13px; font-weight:500; display:inline-flex; align-items:center; gap:10px; box-shadow: 0 12px 32px -10px oklch(0.6 0.15 55 / 0.55); transition:transform .2s ease;}
.wa:hover{transform:translateY(-2px)}
.wa svg{width:15px; height:15px}

/* ---------- DISCLAIMER ---------- */
.disclaimer{background:var(--bg-2); border-left:3px solid var(--accent); padding:20px 24px; font-size:13.5px; color:var(--ink-2); margin:28px 0; max-width:80ch; line-height:1.55}
.disclaimer b{color:var(--ink); font-weight:500}

/* ---------- DIAGRAMA DE PROCESO REUSABLE ---------- */
.flow{display:grid; grid-template-columns: repeat(5, 1fr); gap:10px; margin-top:20px}
.flow-node{border:1px solid var(--line); background:var(--bg-2); padding:22px 18px; min-height:180px; display:flex; flex-direction:column; justify-content:space-between}
.flow-node.accent{background:var(--ink); color:var(--bg); border-color:var(--ink)}
.flow-node.accent .flow-n, .flow-node.accent p{color:oklch(0.75 0.01 80)}
.flow-n{font-family:var(--mono); font-size:10.5px; color:var(--ink-3); letter-spacing:0.14em; text-transform:uppercase}
.flow-node h4{font-family:var(--serif); font-size:22px; font-weight:300; letter-spacing:-0.01em; line-height:1.05; margin-top:12px}
.flow-node p{color:var(--ink-2); font-size:13px; margin-top:8px; line-height:1.45}
.flow-chip{font-family:var(--mono); font-size:10px; color:var(--accent-ink); letter-spacing:0.12em; text-transform:uppercase; margin-top:14px; border-top:1px solid var(--line); padding-top:9px}
.flow-node.accent .flow-chip{color:var(--accent-soft); border-color:oklch(0.38 0.008 70)}
@media (max-width:1000px){ .flow{grid-template-columns:1fr 1fr} }
@media (max-width:560px){ .flow{grid-template-columns:1fr} }

/* ---------- VARIABLES CRÍTICAS ---------- */
.vars-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:0; border-top:1px solid var(--ink); border-bottom:1px solid var(--line)}
.var{padding:28px 24px 28px 0; border-right:1px solid var(--line)}
.var:last-child{border-right:0}
.var:not(:first-child){padding-left:24px}
.var .ix{font-family:var(--mono); font-size:11px; color:var(--accent-ink); letter-spacing:0.12em}
.var h5{font-family:var(--serif); font-size:22px; font-weight:300; letter-spacing:-0.01em; margin-top:8px}
.var p{color:var(--ink-2); font-size:13.5px; margin-top:10px}
@media (max-width:900px){ .vars-grid{grid-template-columns:1fr 1fr} .var{border-right:0; border-bottom:1px solid var(--line); padding:22px 0 !important} }
@media (max-width:560px){ .vars-grid{grid-template-columns:1fr} }

/* ---------- FORM TÉCNICO ---------- */
.form-tech{display:grid; grid-template-columns:1fr 1fr; gap:0 28px; background:oklch(0.34 0.008 70); padding:36px; border-radius:6px}
.form-tech .field{padding:14px 0; border-bottom:1px solid oklch(0.42 0.008 70); display:flex; flex-direction:column; gap:6px}
.form-tech .field.full{grid-column:1 / -1}
.form-tech label{font-family:var(--mono); font-size:11px; letter-spacing:0.12em; color:oklch(0.7 0.008 70); text-transform:uppercase}
.form-tech input, .form-tech select, .form-tech textarea{background:transparent; border:0; color:var(--bg); font-family:var(--sans); font-size:15px; outline:none; padding:4px 0}
.form-tech textarea{min-height:80px; resize:vertical}
.form-tech select option{color:var(--ink)}
.form-tech input::placeholder, .form-tech textarea::placeholder{color:oklch(0.58 0.008 70)}
.form-tech .submit{margin-top:24px; grid-column:1/-1; display:flex; justify-content:flex-end}
@media (max-width:820px){ .form-tech{grid-template-columns:1fr; padding:24px} }

/* ---------- IMAGEN HERO ---------- */
.cover-img{margin-top:48px; border-radius:4px; overflow:hidden; border:1px solid var(--line); aspect-ratio: 16/7; position:relative}
.cover-img img{width:100%; height:100%; object-fit:cover}
.cover-img .cap{position:absolute; left:18px; bottom:18px; background:color-mix(in oklab, var(--ink) 82%, transparent); color:var(--bg); padding:8px 12px; font-family:var(--mono); font-size:11px; letter-spacing:0.1em; text-transform:uppercase; backdrop-filter:blur(6px)}

/* ---------- GLOSARIO ---------- */
.glossary{display:grid; grid-template-columns:repeat(2,1fr); gap:0 60px; border-top:1px solid var(--ink); margin-top:24px}
.glossary dt{font-family:var(--serif); font-size:22px; font-weight:400; color:var(--ink); margin-top:24px; letter-spacing:-0.01em}
.glossary dd{color:var(--ink-2); font-size:14.5px; padding-bottom:24px; border-bottom:1px solid var(--line); margin-top:6px}
@media (max-width:820px){ .glossary{grid-template-columns:1fr} }

/* reveal */
.reveal{opacity:0; transform:translateY(14px); transition: opacity .7s ease, transform .7s cubic-bezier(.2,.7,.2,1)}
.reveal.on{opacity:1; transform:none}