/* ==========================================================================
   THE VIRAL STUDIO · site.css
   Chrome y componentes compartidos (modo cine / dark). Requiere tokens.css.
   Lo usan todas las páginas menos la home (que tiene su CSS afinado inline).
   ========================================================================== */

html{background:var(--cine-bg);}
body{background:var(--cine-bg);color:var(--cine-text);font-family:var(--font-body);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}
::selection{background:var(--cine-accent);color:#2B0713;}
img,video{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}

.wrap{max-width:var(--maxw-wide);margin:0 auto;padding:0 clamp(20px,4vw,48px);width:100%;}
section{padding:clamp(64px,9vw,130px) 0;}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--cine-accent);color:#2B0713;padding:10px 16px;z-index:200;}
.skip-link:focus{left:0;}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

/* --- Tipografía display --- */
.d{font-family:var(--font-display);font-weight:800;text-transform:uppercase;line-height:.9;letter-spacing:-.025em;}
.d-xl{font-size:clamp(2.6rem,8vw,6.5rem);}
.d-lg{font-size:clamp(2.2rem,6vw,4.6rem);}
.d-md{font-size:clamp(1.7rem,3.6vw,2.8rem);}
.d-sm{font-size:clamp(1.3rem,2.4vw,1.9rem);}
.accent{color:var(--cine-accent);}
.muted{color:var(--cine-text-2);}
.eyebrow{font-family:var(--font-body);font-size:11px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--cine-text-2);display:inline-block;}
.d-xl,.d-lg,h1,h2{text-wrap:balance;}
.lead,.prose p{text-wrap:pretty;}
.metric .v,.case-metrics-grid .m .v,.case-metrics .v,.price .now{font-variant-numeric:tabular-nums lining-nums;}
.eyebrow--accent{color:var(--cine-accent);}
.lead{font-size:clamp(1.05rem,1.5vw,1.3rem);line-height:1.55;color:var(--cine-text-2);}
.lead strong{color:#fff;font-weight:600;}
.prose p{color:var(--cine-text-2);max-width:68ch;margin-bottom:1.1em;}
.prose p:last-child{margin-bottom:0;}
.prose strong{color:#fff;}

/* --- LEGAL / documento largo --- */
.legal{max-width:760px;}
.legal h2{font-family:var(--font-display);text-transform:uppercase;font-size:clamp(1.2rem,2.2vw,1.6rem);letter-spacing:-.01em;margin:clamp(36px,5vw,56px) 0 14px;padding-top:clamp(24px,3vw,32px);border-top:1px solid var(--cine-line);}
.legal h2:first-of-type{border-top:0;padding-top:0;margin-top:8px;}
.legal h3{font-family:var(--font-display);text-transform:uppercase;font-size:1.05rem;margin:24px 0 10px;color:#fff;}
.legal p{color:var(--cine-text-2);margin-bottom:1em;line-height:1.7;}
.legal ul{list-style:none;margin:0 0 1.2em;display:grid;gap:9px;}
.legal li{position:relative;padding-left:22px;color:var(--cine-text-2);}
.legal li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;background:var(--cine-accent-ink);}
.legal .kv{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;margin:0 0 1.2em;}
.legal .kv dt{color:var(--cine-text-3);font-size:.85rem;text-transform:uppercase;letter-spacing:.06em;}
.legal .kv dd{color:#fff;}
.legal a{color:var(--cine-accent);}
.legal table{width:100%;border-collapse:collapse;margin:0 0 1.4em;font-size:.92rem;}
.legal th,.legal td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--cine-line);color:var(--cine-text-2);}
.legal th{font-family:var(--font-display);text-transform:uppercase;font-size:.82rem;color:var(--cine-text-3);}

/* --- NAV --- */
nav.site{position:fixed;inset:0 0 auto 0;z-index:100;height:70px;display:flex;align-items:center;background:rgba(0,0,0,.65);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid var(--cine-line);}
nav.site .wrap{display:flex;align-items:center;justify-content:space-between;}
nav.site svg{height:16px;width:auto;display:block;fill:#fff;}
.nav-mid{display:flex;gap:30px;position:absolute;left:50%;transform:translateX(-50%);}
.nav-mid a{font-size:12px;letter-spacing:.13em;text-transform:uppercase;color:var(--cine-text-2);font-weight:600;transition:color var(--t-fast);}
.nav-mid a:hover,.nav-mid a[aria-current="page"]{color:#fff;}

/* --- BOTONES --- */
.btn{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-body);font-weight:600;font-size:14px;letter-spacing:.02em;padding:13px 24px;border:1px solid transparent;cursor:pointer;transition:background var(--t-fast),border-color var(--t-fast),color var(--t-fast),transform var(--t-fast),box-shadow var(--t-fast),filter var(--t-fast);}
.btn--accent{background:var(--cine-accent);color:#2B0713;box-shadow:0 1px 0 rgba(255,255,255,.14) inset;}
.btn--accent:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 12px 30px -12px rgba(255,61,140,.55);}
.btn--ghost{background:transparent;color:#fff;border-color:var(--cine-line-2);}
.btn--ghost:hover{border-color:#fff;background:#fff;color:#000;}
.btn--lg{padding:18px 38px;font-size:15px;}
nav.site .btn{padding:10px 18px;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:700;}

/* --- PAGE HEADER (cabecera de página interior) --- */
.page-head{padding-top:clamp(120px,15vw,190px);padding-bottom:clamp(40px,6vw,72px);border-bottom:1px solid var(--cine-line);}
.page-head .eyebrow{margin-bottom:clamp(16px,2.5vw,26px);}
.page-head h1{margin:0;max-width:20ch;}
.page-head .lead{margin-top:clamp(20px,3vw,30px);max-width:60ch;}
.back-link{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--cine-text-2);font-weight:600;display:flex;width:fit-content;gap:8px;margin-bottom:24px;transition:color var(--t-fast);}
.back-link:hover{color:var(--cine-accent);}

/* --- MÉTRICAS --- */
.metrics-row{display:flex;gap:clamp(28px,5vw,64px);flex-wrap:wrap;margin-top:clamp(24px,4vw,40px);}
.metric .v{font-family:var(--font-display);font-weight:800;font-size:clamp(2.2rem,4.5vw,3.6rem);line-height:.85;}
.metric .l{display:block;margin-top:12px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--cine-text-2);max-width:24ch;}

/* --- TARJETAS --- */
.card{background:linear-gradient(180deg,#101010 0%,#0a0a0a 100%);border:1px solid var(--cine-line);padding:clamp(24px,3vw,36px);box-shadow:inset 0 1px 0 rgba(255,255,255,.045);}
.card h3{font-family:var(--font-display);text-transform:uppercase;font-size:clamp(1.2rem,2vw,1.6rem);letter-spacing:-.01em;margin-bottom:12px;}
.card p{color:var(--cine-text-2);font-size:.98rem;}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,2vw,24px);}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2vw,24px);}
.split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,4vw,64px);align-items:center;}

/* --- MEDIA / IMAGEN --- */
.media{position:relative;overflow:hidden;background:var(--cine-surface);border:1px solid var(--cine-line);}
.media img,.media video{width:100%;height:100%;object-fit:cover;}
.media--v{aspect-ratio:9/16;}
.media--wide{aspect-ratio:16/9;}
.media--sq{aspect-ratio:1/1;}
.ph{background:radial-gradient(120% 90% at 30% 15%,#2a2a2a 0%,transparent 60%),linear-gradient(158deg,#1a1a1a,#050505);}

/* --- FORM --- */
.form{display:grid;gap:12px;max-width:520px;}
.form label{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--cine-text-2);font-weight:600;margin-bottom:-4px;}
.form input,.form textarea,.form select{font-family:var(--font-body);font-size:1rem;padding:14px 16px;border:1px solid var(--cine-line-2);background:#050505;color:#fff;transition:border-color var(--t-fast);width:100%;}
.form input::placeholder,.form textarea::placeholder{color:var(--cine-text-3);}
.form input:focus,.form textarea:focus,.form select:focus{outline:none;border-color:var(--cine-accent);}
.form .btn{justify-content:center;margin-top:8px;}
.form-note{font-size:12px;color:var(--cine-text-3);}

/* --- FAQ --- */
.faq details{border-top:1px solid var(--cine-line);padding:22px 0;}
.faq details:last-of-type{border-bottom:1px solid var(--cine-line);}
.faq summary{font-weight:600;font-size:1.05rem;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";color:var(--cine-accent);font-size:1.4rem;line-height:1;}
.faq details[open] summary{color:var(--cine-accent);}
.faq details[open] summary::after{content:"–";}
.faq p{margin-top:14px;color:var(--cine-text-2);max-width:74ch;}

/* --- CTA BAND --- */
.cta-band{text-align:center;background:radial-gradient(circle at 50% 30%,#0d0d0d 0%,#000 70%);border-top:1px solid var(--cine-line);}
.cta-band h2{max-width:22ch;margin:0 auto;}
.cta-band .lead{max-width:52ch;margin:20px auto 34px;}

/* --- FOOTER --- */
footer.site{border-top:1px solid var(--cine-line);background:#050505;padding:56px 0 40px;}
footer.site .foot-top{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;flex-wrap:wrap;margin-bottom:48px;}
footer.site svg{height:16px;fill:#fff;}
.foot-desc{max-width:38ch;color:var(--cine-text-2);font-size:.9rem;margin-top:16px;}
.foot-links{display:flex;gap:28px;flex-wrap:wrap;}
.foot-links a{font-size:13px;color:var(--cine-text-2);transition:color var(--t-fast);}
.foot-links a:hover{color:#fff;}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;padding-top:24px;border-top:1px solid var(--cine-line);font-size:12px;color:var(--cine-text-3);letter-spacing:.04em;}
.socials{display:flex;gap:20px;}
.socials a:hover{color:#fff;}

/* --- CASO (páginas de estudio de caso) --- */
.case-hero{position:relative;min-height:70vh;display:flex;align-items:flex-end;padding:clamp(120px,15vw,180px) 0 clamp(40px,6vw,72px);overflow:hidden;border-bottom:1px solid var(--cine-line);}
.case-hero-bg{position:absolute;inset:0;z-index:0;}
.case-hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.42;}
.case-hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.6) 0%,rgba(0,0,0,.2) 45%,rgba(0,0,0,.95) 100%);}
.case-hero .wrap{position:relative;z-index:2;}
.case-hero .tag{display:inline-flex;font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--cine-accent);border:1px solid var(--cine-accent-ink);padding:6px 12px;margin-bottom:20px;}
.case-hero h1{margin:0;}
.case-hero .sub{margin-top:20px;max-width:44ch;color:#d6d6d6;}
.case-metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(20px,3vw,40px);}
.case-metrics-grid .m .v{font-family:var(--font-display);font-weight:800;font-size:clamp(1.8rem,3.6vw,3rem);line-height:.9;}
.case-metrics-grid .m .l{display:block;margin-top:12px;font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:var(--cine-text-2);max-width:22ch;}
.case-block{display:grid;grid-template-columns:0.5fr 1fr;gap:clamp(24px,4vw,64px);border-top:1px solid var(--cine-line);padding-top:clamp(36px,5vw,60px);}
.case-block+.case-block{margin-top:clamp(36px,5vw,60px);}
.case-block .lab{display:flex;gap:14px;align-items:baseline;}
.case-block .lab .no{font-family:var(--font-display);font-weight:800;color:var(--cine-text-3);}
.case-block .lab h2{font-family:var(--font-display);text-transform:uppercase;font-size:clamp(1.4rem,2.4vw,2rem);letter-spacing:-.01em;}
.case-block .big{font-size:clamp(1.15rem,1.8vw,1.5rem);color:#fff;line-height:1.4;margin-bottom:1em;}
.case-block p{color:var(--cine-text-2);margin-bottom:1em;max-width:60ch;}
.strategy-points{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:24px;}
.strategy-points .sp{border-top:2px solid var(--cine-accent-ink);padding-top:14px;}
.strategy-points h4{font-family:var(--font-display);text-transform:uppercase;font-size:.98rem;margin-bottom:8px;letter-spacing:-.01em;}
.strategy-points p{font-size:.9rem;margin:0;}
.result-quote{border-left:2px solid var(--cine-accent-ink);background:var(--cine-surface);padding:24px 28px;margin-top:8px;}
.result-quote blockquote{font-family:var(--font-display);text-transform:uppercase;font-size:clamp(1.3rem,2.2vw,1.9rem);line-height:1.1;letter-spacing:-.01em;}
.result-quote cite{display:block;margin-top:18px;font-style:normal;font-size:.85rem;letter-spacing:.06em;text-transform:uppercase;color:var(--cine-text-2);}
.gallery-sub{font-size:.85rem;letter-spacing:.16em;text-transform:uppercase;color:var(--cine-text-3);font-weight:600;margin:clamp(28px,4vw,40px) 0 16px;}
.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.video-embed{position:relative;aspect-ratio:9/16;background:#000;border:1px solid var(--cine-line);overflow:hidden;}
.video-embed iframe{position:absolute;inset:0;width:100%;height:100%;}
.video-link{position:relative;aspect-ratio:9/16;display:flex;align-items:center;justify-content:center;overflow:hidden;background:var(--cine-surface);border:1px solid var(--cine-line);}
.video-link img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.7;transition:opacity var(--t-base),transform var(--t-slow);}
.video-link:hover img{opacity:.95;transform:scale(1.04);}
.video-link .ov{position:relative;z-index:2;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#fff;font-weight:600;background:rgba(0,0,0,.55);padding:8px 14px;}
.video-link .tk{position:absolute;font-family:var(--font-display);font-size:1.4rem;color:var(--cine-text-3);}
.learnings{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:clamp(28px,4vw,44px);}
.learnings .lc{border:1px solid var(--cine-line);padding:24px;}
.learnings .lc .no{font-family:var(--font-display);font-weight:800;color:var(--cine-accent);font-size:1.1rem;}
.learnings .lc p{color:var(--cine-text-2);font-size:.95rem;margin-top:10px;}
.other-cases-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:clamp(24px,3vw,36px);}
.other-case{position:relative;aspect-ratio:16/9;overflow:hidden;border:1px solid var(--cine-line);display:flex;align-items:flex-end;padding:24px;}
.other-case img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5;transition:opacity var(--t-base),transform var(--t-slow);}
.other-case:hover img{opacity:.75;transform:scale(1.04);}
.other-case span{position:relative;z-index:2;font-family:var(--font-display);text-transform:uppercase;font-size:1.2rem;letter-spacing:-.01em;}
@media(max-width:820px){
  .case-metrics-grid{grid-template-columns:1fr 1fr;}
  .case-block{grid-template-columns:1fr;gap:16px;}
  .strategy-points,.learnings,.gallery-grid{grid-template-columns:1fr;}
  .other-cases-grid{grid-template-columns:1fr;}
}

/* --- FOCO ACCESIBLE --- */
:focus-visible{outline:2px solid var(--cine-accent);outline-offset:3px;}
.btn:focus-visible,.tile:focus-visible,.case-row:focus-visible,.other-case:focus-visible{outline-offset:4px;}

/* --- REVEAL (progressive enhancement) --- */
html.io .reveal{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease),transform .7s var(--ease);transition-delay:calc(var(--i,0) * 70ms);}
html.io .reveal.in{opacity:1;transform:none;}

/* --- RESPONSIVE --- */
@media(max-width:960px){
  .nav-mid{display:none;}
  .grid-3,.grid-2,.split{grid-template-columns:1fr;}
}
@media(max-width:480px){
  nav.site svg{height:13px;}
  nav.site .btn{padding:9px 12px;font-size:11px;letter-spacing:.03em;}
}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
}