/* Tras la huella by Re — estética de expediente */
:root{
  --bg:#0d0c0b;--surface:#151311;--surface-2:#1c1916;--surface-3:#24201c;--line:#2d2823;--line-2:#3d362f;
  --text:#efe9df;--muted:#a59d92;--faint:#8c8378;
  --accent:#e2694c;--accent-strong:#c4503a;--paper:#e9e1d1;--ink:#1a1714;
  --ok:#8cc084;--warn:#e7b85a;--open:#86b3e0;
  --radius:16px;--max:1200px;
  --serif:"Fraunces","Iowan Old Style","Palatino Linotype",Georgia,serif;
  --sans:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --mono:ui-monospace,"SFMono-Regular","JetBrains Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:400 1.0625rem/1.68 var(--sans);text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;overflow-x:hidden}
body::before{content:"";position:fixed;inset:0;pointer-events:none;z-index:0;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
main,header,footer,nav{position:relative;z-index:1}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:#f39279}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
::selection{background:var(--accent-strong);color:#fff}
h1,h2,h3{font-family:var(--serif);font-weight:600;line-height:1.08;letter-spacing:-.02em;margin:0 0 .55em;font-optical-sizing:auto}
h1{font-size:clamp(2.2rem,5.6vw,4.3rem)}
h2{font-size:clamp(1.65rem,3.4vw,2.6rem)}
h3{font-size:1.2rem;letter-spacing:-.01em}
em.hl{font-style:italic;color:var(--accent);font-weight:500}
p{margin:0 0 1.1em}
.wrap{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:8px;background:var(--accent);color:#111;padding:8px 14px;border-radius:8px;z-index:100}
.skip:focus{left:8px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font:600 .74rem/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--accent);margin:0 0 18px}
.eyebrow::before{content:"";width:22px;height:1px;background:currentColor}
.mono{font-family:var(--mono);letter-spacing:.04em}

/* Cabecera */
.site-header{position:sticky;top:0;z-index:50;background:rgba(13,12,11,.82);backdrop-filter:saturate(140%) blur(12px);-webkit-backdrop-filter:saturate(140%) blur(12px);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:68px}
.brand{display:flex;align-items:center;gap:11px;color:var(--text);text-decoration:none;font-family:var(--serif);font-size:1.22rem;font-weight:600;letter-spacing:-.01em}
.brand svg{width:32px;height:32px;flex:none;color:var(--accent)}
.brand small{display:block;font:500 .64rem/1 var(--mono);color:var(--muted);letter-spacing:.16em;text-transform:uppercase;margin-top:4px}
.brand:hover{color:var(--text)}
.nav{display:flex;align-items:center;gap:4px}
.nav a{color:var(--text);text-decoration:none;padding:8px 13px;border-radius:999px;font-size:.94rem;font-weight:500}
.nav a:hover,.nav a[aria-current="page"]{background:var(--surface-3)}
.nav a.search-link{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--line-2)}
.nav a.search-link svg{width:16px;height:16px}
.btn{display:inline-flex;align-items:center;gap:9px;background:var(--accent-strong);color:#fff;text-decoration:none;font-weight:600;padding:12px 20px;border-radius:999px;border:0;cursor:pointer;font-size:.97rem;line-height:1.2;transition:background .2s,transform .2s,color .2s;font-family:var(--sans)}
.btn:hover{background:var(--accent);color:#140f0c;transform:translateY(-1px)}
.btn svg{width:18px;height:18px}
.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line-2)}
.btn.ghost:hover{background:var(--surface-3);color:var(--text)}
.nav .btn{margin-left:8px;padding:9px 16px;color:#fff}
.nav .btn:hover{color:#140f0c;background:var(--accent)}
.menu-toggle{display:none;background:none;border:1px solid var(--line-2);color:var(--text);border-radius:10px;width:42px;height:42px;cursor:pointer;font-size:1.1rem}
@media (max-width:880px){
  .menu-toggle{display:inline-grid;place-items:center}
  .nav{position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;background:var(--bg);border-bottom:1px solid var(--line);padding:10px 20px 20px;display:none}
  .nav.open{display:flex}
  .nav a{padding:13px 12px}
  .nav .btn{margin:8px 0 0;justify-content:center}
}

/* Hero */
.hero{position:relative;overflow:hidden;padding:clamp(48px,8vw,104px) 0 clamp(56px,8vw,104px);border-bottom:1px solid var(--line)}
.hero::after{content:"";position:absolute;inset:auto -20% -40% 30%;height:80%;background:radial-gradient(closest-side,rgba(196,80,58,.18),transparent);pointer-events:none}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center}
.hero .lead{font-size:clamp(1.08rem,1.9vw,1.28rem);color:var(--muted);max-width:600px}
.hero .lead strong{color:var(--text);font-weight:600}
.hero .cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.stats{display:flex;flex-wrap:wrap;gap:0;margin:44px 0 0;padding:0;list-style:none;border-top:1px solid var(--line)}
.stats li{font-size:.84rem;color:var(--muted);padding:18px 28px 0 0;margin-right:28px;border-right:1px solid var(--line)}
.stats li:last-child{border-right:0}
.stats strong{display:block;font:600 1.9rem/1.1 var(--serif);color:var(--text);letter-spacing:-.02em}
.board{position:relative;height:460px}
.polaroid{position:absolute;width:62%;background:var(--paper);padding:10px 10px 38px;border-radius:3px;box-shadow:0 18px 40px rgba(0,0,0,.55);color:var(--ink);text-decoration:none;transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s}
.polaroid img{aspect-ratio:4/3;object-fit:cover;width:100%;filter:grayscale(.85) contrast(1.08) sepia(.15);transition:filter .35s}
.polaroid span{position:absolute;left:12px;right:12px;bottom:10px;font:600 .74rem/1.2 var(--mono);letter-spacing:.06em;text-transform:uppercase;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.polaroid::before{content:"";position:absolute;top:-12px;left:50%;width:84px;height:24px;margin-left:-42px;background:rgba(233,225,209,.55);transform:rotate(-3deg);box-shadow:0 2px 6px rgba(0,0,0,.2)}
.polaroid:hover{transform:rotate(0) scale(1.04)!important;z-index:5;box-shadow:0 26px 60px rgba(0,0,0,.7);color:var(--ink)}
.polaroid:hover img{filter:none}
.polaroid.p1{left:0;top:30px;transform:rotate(-6deg);z-index:2}
.polaroid.p2{right:0;top:0;transform:rotate(5deg);z-index:1}
.polaroid.p3{left:22%;bottom:0;transform:rotate(-1.5deg);z-index:3}
.stamp{position:absolute;right:6%;bottom:16%;z-index:4;font:700 .9rem/1 var(--mono);letter-spacing:.2em;color:var(--accent);border:2px solid var(--accent);padding:8px 12px;transform:rotate(-12deg);opacity:.9;text-transform:uppercase;background:rgba(13,12,11,.4)}
@media (max-width:960px){.hero .wrap{grid-template-columns:1fr}.board{height:340px;max-width:520px;width:100%;margin:8px auto 0}}
@media (max-width:520px){.stats li{font-size:.76rem}.stats li:nth-child(3){border-right:0}.board{height:270px}.polaroid{padding:7px 7px 30px}.polaroid span{font-size:.62rem}.stats li{padding-right:12px;margin-right:12px}.stats strong{font-size:1.35rem}}

/* Secciones */
section{padding:clamp(56px,7vw,96px) 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px 40px;flex-wrap:wrap;margin-bottom:34px}
.section-head h2{margin:0}
.section-head p{color:var(--muted);margin:0;max-width:520px}
.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* Tarjetas */
.grid{display:grid;gap:22px;grid-template-columns:repeat(auto-fill,minmax(272px,1fr))}
.card{position:relative;background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .25s,border-color .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 18px 40px rgba(0,0,0,.35)}
.card .file{display:flex;justify-content:space-between;align-items:center;padding:10px 16px;font:500 .7rem/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--faint);border-bottom:1px dashed var(--line-2)}
.card .file b{color:var(--accent);font-weight:600}
.card a.cover{display:block;position:relative;aspect-ratio:16/9;background:#000;overflow:hidden}
.card img{width:100%;height:100%;object-fit:cover;filter:grayscale(.55) contrast(1.05);transition:filter .35s,transform .5s}
.card:hover img{filter:none;transform:scale(1.04)}
.card .dur{position:absolute;right:8px;bottom:8px;background:rgba(0,0,0,.82);color:#fff;font:500 .74rem/1 var(--mono);padding:4px 7px;border-radius:6px}
.card .body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:9px;flex:1}
.card h3{margin:0;font-size:1.14rem;line-height:1.2}
.card h3 a{color:var(--text);text-decoration:none}
.card h3 a::after{content:"";position:absolute;inset:0;z-index:1}
.card h3 a:hover{color:var(--accent)}
.card p{color:var(--muted);font-size:.93rem;margin:0;line-height:1.55;display:-webkit-box;-webkit-line-clamp:3;line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card .meta{display:flex;flex-wrap:wrap;gap:6px 14px;font:500 .74rem/1.3 var(--mono);color:var(--faint);letter-spacing:.03em;margin-top:auto;padding-top:6px}
.card .meta a{position:relative;z-index:2;color:var(--accent)}
.tags{display:flex;gap:6px;flex-wrap:wrap}
.tag{font:600 .68rem/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;padding:5px 9px;border-radius:999px;background:var(--surface-3);color:var(--muted);border:1px solid var(--line)}
.tag.resuelto{color:var(--ok)}
.tag.sin-resolver{color:var(--warn)}
.tag.abierto{color:var(--open)}
.tag.short{color:var(--accent)}

/* Filtros y buscador */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:26px}
.filters button{background:var(--surface-2);color:var(--text);border:1px solid var(--line-2);border-radius:999px;padding:9px 15px;cursor:pointer;font:500 .9rem var(--sans);transition:background .2s}
.filters button:hover{background:var(--surface-3)}
.filters button[aria-pressed="true"]{background:var(--paper);border-color:var(--paper);color:var(--ink)}
.filters button small{font-family:var(--mono);opacity:.7;margin-left:4px}
.searchbox{position:relative;max-width:760px;margin:26px 0 18px}
.searchbox svg{position:absolute;left:20px;top:50%;transform:translateY(-50%);width:22px;height:22px;color:var(--muted);pointer-events:none}
.searchbox input{width:100%;font:500 1.15rem var(--sans);color:var(--text);background:var(--surface-2);border:1px solid var(--line-2);border-radius:999px;padding:18px 22px 18px 56px;outline:none;transition:border-color .2s,box-shadow .2s}
.searchbox input::placeholder{color:var(--faint)}
.searchbox input:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(226,105,76,.18)}
.result-info{font:500 .82rem/1 var(--mono);color:var(--muted);letter-spacing:.04em;margin:0 0 22px}
.empty{display:none;text-align:center;padding:56px 20px;color:var(--muted);border:1px dashed var(--line-2);border-radius:var(--radius)}
.empty.show{display:block}
.month{grid-column:1/-1;font:600 .78rem/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--muted);padding:14px 0 2px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between}
.grid.v .card.is-short a.cover{aspect-ratio:16/9}

/* Página de caso */
.breadcrumb{font:500 .8rem/1.4 var(--mono);color:var(--muted);padding-top:22px;letter-spacing:.03em}
.breadcrumb ol{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px}
.breadcrumb li+li::before{content:"/";margin-right:6px;color:var(--faint)}
.breadcrumb a{color:var(--muted);text-decoration:none}
.breadcrumb a:hover{color:var(--text)}
.case-head{padding:26px 20px 6px}
.case-head .file-no{font:600 .74rem/1 var(--mono);letter-spacing:.18em;color:var(--faint);text-transform:uppercase;margin-bottom:14px}
.case-head h1{max-width:980px}
.case-head .summary{font-size:clamp(1.06rem,1.8vw,1.24rem);color:#d9d2c6;max-width:820px;border-left:3px solid var(--accent-strong);padding-left:20px;margin-top:8px}
.case-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:48px;padding-top:30px;padding-bottom:64px}
@media (max-width:980px){.case-layout{grid-template-columns:1fr}}
.article h2{margin-top:1.7em;font-size:1.7rem}
.article p{max-width:70ch;color:#ddd6ca}
.facts{background:var(--paper);color:var(--ink);border-radius:6px;padding:22px 22px 24px;position:sticky;top:90px;box-shadow:0 18px 40px rgba(0,0,0,.4)}
.facts::before{content:"Ficha del caso";display:block;font:700 .7rem/1 var(--mono);letter-spacing:.2em;text-transform:uppercase;color:var(--accent-strong);border-bottom:2px solid var(--ink);padding-bottom:12px;margin-bottom:16px}
.facts h2{position:absolute;left:-9999px}
.facts dl{margin:0;display:grid;gap:14px}
.facts dt{font:600 .68rem/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:#6c6257}
.facts dd{margin:4px 0 0;font-weight:500;line-height:1.4}
.facts .btn{width:100%;justify-content:center;margin-top:20px}
.facts .btn.ghost{color:var(--ink);border-color:#bdb3a2;margin-top:10px}
.facts .btn.ghost:hover{background:#ddd3c0}
@media (max-width:980px){.facts{position:static}}
.note{font-size:.86rem;color:var(--muted);border-top:1px solid var(--line);margin-top:22px;padding-top:16px}

/* Vídeo con carga diferida */
.yt{position:relative;aspect-ratio:16/9;background:#000;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:0 20px 50px rgba(0,0,0,.45)}
.yt img{width:100%;height:100%;object-fit:cover;opacity:.88}
.yt button{position:absolute;inset:0;width:100%;height:100%;border:0;background:linear-gradient(transparent 55%,rgba(0,0,0,.55));cursor:pointer;display:grid;place-items:center}
.yt button span{width:84px;height:84px;border-radius:50%;background:rgba(196,80,58,.95);display:grid;place-items:center;transition:transform .2s;box-shadow:0 0 0 10px rgba(196,80,58,.22)}
.yt button:hover span{transform:scale(1.08)}
.yt button span::after{content:"";border-left:24px solid #fff;border-top:14px solid transparent;border-bottom:14px solid transparent;margin-left:6px}
.yt iframe{position:absolute;inset:0;width:100%;height:100%;border:0}
.caption{font:500 .8rem/1.5 var(--mono);color:var(--muted);margin-top:12px;letter-spacing:.02em}

/* FAQ */
.faq details{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;margin-bottom:10px;transition:border-color .2s}
.faq details[open]{border-color:var(--line-2)}
.faq summary{cursor:pointer;padding:17px 20px;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--accent);font:400 1.4rem/1 var(--sans)}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 20px 18px;margin:0;color:#d6d0c6}

/* Sobre */
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
@media (max-width:880px){.split{grid-template-columns:1fr}}
.pillars{display:grid;gap:14px}
.pillar{display:grid;grid-template-columns:auto 1fr;gap:4px 18px;background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px}
.pillar i{grid-row:span 2;font:600 1.6rem/1 var(--serif);color:var(--accent);font-style:normal}
.pillar h3{font-size:1.08rem;margin:0}
.pillar p{color:var(--muted);margin:0;font-size:.94rem}
.socials{display:flex;gap:10px;flex-wrap:wrap}
.warning{font-size:.9rem;color:var(--muted);background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:15px 18px}
.cta-band{text-align:center;padding:clamp(56px,8vw,96px) 0}
.cta-band h2{max-width:760px;margin:0 auto .4em}
.cta-band p{color:var(--muted);max-width:560px;margin:0 auto 28px}

/* Pie */
.site-footer{border-top:1px solid var(--line);padding:52px 0 32px;color:var(--muted);font-size:.92rem;background:var(--surface)}
.site-footer .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:36px}
@media (max-width:780px){.site-footer .cols{grid-template-columns:1fr}}
.site-footer h2{font:600 .72rem/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--text);margin-bottom:16px}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.site-footer a{color:var(--muted);text-decoration:none}
.site-footer a:hover{color:var(--text)}
.site-footer .btn.ghost{color:var(--text);padding:9px 15px;font-size:.88rem}
.copy{margin-top:36px;padding-top:20px;border-top:1px solid var(--line);font-size:.82rem;line-height:1.7}

.prose{max-width:780px}
.prose h2{margin-top:1.4em;font-size:1.6rem}
.prose li{margin-bottom:.4em}
.page-head{padding:30px 0 0}
.page-head .lead{color:var(--muted);max-width:720px;font-size:1.12rem}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}

/* Portada: todos los vídeos desplegables */
.js .expandable.collapsed .card:nth-child(n+9){display:none}
.expand-bar{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:34px}
.js .expandable.collapsed{position:relative}
.js .expandable.collapsed::after{content:"";position:absolute;left:0;right:0;bottom:0;height:120px;background:linear-gradient(transparent,var(--bg));pointer-events:none}