/* ============================================================
   SISTEMA VISUAL — Casos de estudio · Portfolio Nat
   Marca: Cooper BT (display) + Poppins (texto)
   Paleta: burgundi / azul cielo / mantequilla / crema suave
   Compartido por caso-estudio.html y branding.html
   ============================================================ */
@font-face{font-family:"Cooper BT";src:url("../fonts/cooper-bt-bold.ttf") format("truetype");font-weight:700;font-style:normal;font-display:swap;}
@font-face{font-family:"Poppins";src:url("../fonts/Poppins-Light.ttf") format("truetype");font-weight:300;font-style:normal;font-display:swap;}
@font-face{font-family:"Poppins";src:url("../fonts/Poppins-Regular.ttf") format("truetype");font-weight:400;font-style:normal;font-display:swap;}
@font-face{font-family:"Poppins";src:url("../fonts/Poppins-Italic.ttf") format("truetype");font-weight:400;font-style:italic;font-display:swap;}
@font-face{font-family:"Poppins";src:url("../fonts/Poppins-Medium.ttf") format("truetype");font-weight:500;font-style:normal;font-display:swap;}
@font-face{font-family:"Poppins";src:url("../fonts/Poppins-SemiBold.ttf") format("truetype");font-weight:600;font-style:normal;font-display:swap;}
@font-face{font-family:"Poppins";src:url("../fonts/Poppins-Bold.ttf") format("truetype");font-weight:700;font-style:normal;font-display:swap;}

:root{
  --burgundy:#402900;
  --sky:#C1DBE8;
  --butter:#FFF1B5;
  --cream:#FCFAF3;
  --ink:#402900;
  --ink-soft:#7a6661;
  --ink-faint:#a89a93;
  --line:rgba(67,48,46,.16);
  --line-strong:rgba(67,48,46,.30);
  --box:#FFFFFF;
  --box-2:#EFE8DC;
  /* los botones del cierre siempre en marrón corporativo, sea cual sea el tema */
  --btn-brown:#402900;
  --sky-soft:#E4F0F5;
  --butter-soft:#FBF6DC;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  --sans:"Poppins",system-ui,-apple-system,"Segoe UI",sans-serif;
  --display:"Cooper BT",Georgia,serif;
  --maxw:1240px;
  --topbar-h:68px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{margin:0;background:var(--cream);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased;}
a{color:inherit;}

/* ---------- placeholders ---------- */
.ph-img{
  position:relative;border:1px solid var(--line-strong);border-radius:6px;
  background:repeating-linear-gradient(-45deg,rgba(67,48,46,.07) 0 11px,rgba(67,48,46,.03) 11px 22px);
  display:flex;align-items:center;justify-content:center;color:var(--ink-faint);overflow:hidden;
}
.ph-label{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);
  background:var(--cream);padding:5px 11px;border:1px solid var(--line);border-radius:4px;}
.placeholder{color:var(--ink-faint);font-weight:400;}
.video::after{
  content:"►";position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  width:64px;height:64px;border-radius:50%;background:var(--burgundy);color:var(--cream);
  display:flex;align-items:center;justify-content:center;font-size:20px;padding-left:4px;
}

/* ---------- topbar ---------- */
.topbar{
  position:sticky;top:0;z-index:30;height:var(--topbar-h);
  display:flex;align-items:center;justify-content:space-between;
  padding:0 clamp(20px,5vw,56px);
  background:color-mix(in srgb, var(--cream) 86%, transparent);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);
}
.topbar .wordmark{display:flex;align-items:center;color:var(--ink);line-height:0;text-decoration:none;}
.topbar .wordmark svg{height:26px;width:auto;display:block;fill:currentColor;}
.topbar .back{font-size:14px;text-decoration:none;color:var(--ink-soft);display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border:1px solid var(--line-strong);border-radius:30px;transition:background .15s,color .15s;}
.topbar .back:hover{background:var(--box-2);color:var(--ink);}
.topbar .nav-right{display:flex;align-items:center;gap:10px;}
.lang-toggle{
  display:flex;align-items:center;gap:2px;border:1px solid var(--line-strong);border-radius:20px;
  padding:3px;background:var(--box);cursor:pointer;font-family:var(--mono);font-size:11px;letter-spacing:.02em;
}
.lang-toggle .lg{padding:5px 9px;border-radius:16px;color:var(--ink-faint);transition:background .15s,color .15s;}
html[data-lang="es"] .lang-toggle .lg-es{background:var(--btn-brown,var(--burgundy));color:var(--cream);}
html[data-lang="en"] .lang-toggle .lg-en{background:var(--btn-brown,var(--burgundy));color:var(--cream);}

/* ---------- layout ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(22px,5vw,72px);}
.read{max-width:820px;}
section{position:relative;}

/* ---------- intro ---------- */
.intro{padding:clamp(60px,9vw,120px) 0 0;}
.eyebrow{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:26px;display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
.eyebrow .pill{border:1px solid var(--line-strong);border-radius:20px;padding:5px 12px;}
.intro h1{font-family:var(--display);font-weight:700;letter-spacing:0;line-height:1.02;font-size:clamp(40px,7.5vw,84px);margin:0;text-wrap:balance;}
.intro h1 .placeholder{font-weight:400;}
.intro .lede{font-size:clamp(18px,2vw,24px);line-height:1.42;color:var(--ink);max-width:760px;margin:26px 0 0;text-wrap:pretty;font-weight:300;}
.intro .lede strong{font-weight:600;}

/* ficha + overview */
.brief{display:grid;grid-template-columns:280px 1fr;gap:clamp(32px,6vw,80px);margin:clamp(44px,6vw,72px) 0 0;align-items:start;}
.brief .facts{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line-strong);}
.brief .fact{display:flex;justify-content:space-between;gap:16px;padding:13px 0;border-bottom:1px solid var(--line);}
.brief .fact .k{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);}
.brief .fact .v{font-size:14px;color:var(--ink);text-align:right;font-weight:500;}
.brief .overview p{font-size:clamp(16px,1.5vw,18.5px);line-height:1.62;color:var(--ink-soft);margin:0 0 15px;text-wrap:pretty;}
.brief .overview p strong{color:var(--ink);font-weight:600;}
@media(max-width:740px){.brief{grid-template-columns:1fr;gap:36px;}}

/* ---------- media ---------- */
.media-full{margin:clamp(56px,8vw,110px) 0 0;}
.media-full .ph-img{width:100%;height:clamp(320px,52vw,640px);}
.bleed{max-width:none;width:100%;padding:0;}
.bleed .ph-img{border-radius:0;border-left:none;border-right:none;height:clamp(360px,60vw,760px);}
.media-row{display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,2.4vw,28px);margin:clamp(20px,2.4vw,28px) 0 0;}
.media-row .ph-img{height:clamp(260px,34vw,440px);}
.media-row.thirds{grid-template-columns:repeat(3,1fr);}
.media-row.thirds .ph-img{height:clamp(220px,26vw,340px);}
.caption{font-family:var(--mono);font-size:11px;letter-spacing:.04em;color:var(--ink-faint);margin-top:14px;text-align:center;}
@media(max-width:640px){.media-row,.media-row.thirds{grid-template-columns:1fr;}}

/* ---------- bloque narrativo ---------- */
.block{margin:clamp(64px,9vw,128px) 0 0;}
.block .tag{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:22px;display:flex;align-items:center;gap:10px;}
.block .tag .n{color:var(--ink-faint);}
.block .tag::before{content:"";width:26px;height:1px;background:var(--line-strong);}
.block h2{font-family:var(--display);font-weight:700;letter-spacing:0;line-height:1.1;font-size:clamp(26px,3.4vw,42px);margin:0;max-width:940px;text-wrap:pretty;}
.block .body{max-width:780px;margin:22px 0 0;}
.block .body.wide{max-width:1040px;}
.block .body p{font-size:clamp(16px,1.5vw,18.5px);line-height:1.66;color:var(--ink-soft);margin:0 0 15px;text-wrap:pretty;}
.block .body p strong{color:var(--ink);font-weight:600;}
.block .lede{font-size:clamp(17px,1.7vw,20px);line-height:1.5;color:var(--ink);max-width:780px;margin:16px 0 0;font-weight:300;text-wrap:pretty;}

/* destacado / problem statement */
.statement{margin:36px 0 0;padding:clamp(28px,4vw,44px);background:var(--box);border:1px solid var(--line);border-radius:14px;border-left:4px solid var(--burgundy);max-width:820px;}
.statement p{font-family:var(--display);font-weight:700;font-size:clamp(18px,2vw,24px);line-height:1.28;letter-spacing:0;margin:0;color:var(--ink);text-wrap:pretty;}

/* tarjetas genéricas */
.cards{display:grid;gap:clamp(14px,1.6vw,20px);margin:36px 0 0;}
.cards.two{grid-template-columns:1fr 1fr;}
.cards.three{grid-template-columns:repeat(3,1fr);}
.card{background:var(--box);border:1px solid var(--line);border-radius:14px;padding:clamp(22px,2.4vw,28px);}
.card h3{font-family:var(--display);font-weight:700;font-size:17px;letter-spacing:0;margin:0 0 9px;}
.card p{font-size:14px;line-height:1.6;color:var(--ink-soft);margin:0;}
.card p strong{color:var(--ink);font-weight:600;}
@media(max-width:740px){.cards.two,.cards.three{grid-template-columns:1fr;}}

/* datos / estadísticas (cualitativas, de contexto) */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(14px,1.6vw,20px);margin:36px 0 0;}
.stat{background:var(--box);border:1px solid var(--line);border-radius:14px;padding:26px 24px;}
.stat .n{font-family:var(--display);font-weight:700;font-size:clamp(26px,3vw,38px);line-height:1;letter-spacing:0;color:var(--ink);}
.stat .l{font-size:14px;line-height:1.45;color:var(--ink-soft);margin-top:12px;}
.src{font-family:var(--mono);font-size:11px;color:var(--ink-faint);margin-top:18px;letter-spacing:.02em;}
@media(max-width:740px){.stats{grid-template-columns:1fr;}}

/* benchmarking — tabla */
.bench{margin:36px 0 0;border-top:1px solid var(--line-strong);}
.bench .row{display:grid;grid-template-columns:1fr 1.6fr 1.2fr;gap:24px;padding:22px 0;border-bottom:1px solid var(--line);align-items:start;}
.bench .row.head{font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);padding:0 0 14px;}
.bench .name{font-family:var(--display);font-weight:700;font-size:16px;letter-spacing:0;}
.bench .name small{display:block;font-family:var(--sans);font-weight:400;font-size:12px;color:var(--ink-faint);margin-top:4px;}
.bench .what{font-size:14px;line-height:1.55;color:var(--ink-soft);}
.bench .gap .gtag{display:inline-block;background:var(--sky);color:var(--ink);border-radius:20px;padding:3px 11px;font-family:var(--mono);font-size:10px;letter-spacing:.06em;text-transform:uppercase;margin-bottom:8px;}
.bench .gap p{font-size:13px;line-height:1.5;color:var(--ink-soft);margin:0;}
.opportunity{margin:28px 0 0;padding:clamp(24px,3vw,36px);background:var(--sky);border-radius:14px;}
.opportunity p{font-size:clamp(15px,1.5vw,18px);line-height:1.5;margin:0;color:var(--ink);text-wrap:pretty;}
.opportunity strong{font-weight:600;}
@media(max-width:740px){.bench .row{grid-template-columns:1fr;gap:10px;}.bench .row.head{display:none;}}

/* personas */
.personas{display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,2vw,24px);margin:36px 0 0;}
.persona{border-radius:16px;padding:clamp(24px,3vw,32px);border:1px solid var(--line);}
.persona.a{background:var(--sky-soft);}
.persona.b{background:var(--butter-soft);}
.persona .ptag{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft);}
.persona h3{font-family:var(--display);font-weight:700;font-size:clamp(22px,2.5vw,28px);letter-spacing:0;margin:8px 0 0;}
.persona blockquote{font-family:var(--display);font-weight:700;font-size:clamp(15px,1.6vw,18px);line-height:1.32;letter-spacing:0;margin:16px 0;padding:14px 18px;background:rgba(255,255,255,.55);border-radius:10px;color:var(--ink);}
.persona .list{font-size:13.5px;line-height:1.65;color:var(--ink-soft);}
.persona .list strong{color:var(--ink);font-weight:600;}
.persona .list p{margin:0 0 10px;}
@media(max-width:740px){.personas{grid-template-columns:1fr;}}

/* insights numerados */
.insights{margin:36px 0 0;border-top:1px solid var(--line-strong);}
.insight{display:grid;grid-template-columns:64px 1fr;gap:clamp(16px,3vw,36px);padding:28px 0;border-bottom:1px solid var(--line);align-items:start;}
.insight .n{font-family:var(--display);font-weight:700;font-size:clamp(24px,2.8vw,34px);line-height:.9;letter-spacing:0;color:var(--ink);opacity:.32;}
.insight h3{font-family:var(--display);font-weight:700;font-size:clamp(17px,1.8vw,20px);letter-spacing:0;margin:0 0 9px;line-height:1.18;}
.insight p{font-size:15px;line-height:1.6;color:var(--ink-soft);margin:0;max-width:680px;text-wrap:pretty;}
.insight p strong{color:var(--ink);font-weight:600;}
@media(max-width:640px){.insight{grid-template-columns:1fr;gap:6px;}.insight .n{font-size:26px;}}

/* journey */
.journey{margin:36px 0 0;display:flex;flex-direction:column;gap:14px;}
.stage{background:var(--box);border:1px solid var(--line);border-radius:14px;padding:22px 24px;}
.stage .sh{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.stage .sn{width:28px;height:28px;border-radius:50%;background:var(--burgundy);color:var(--cream);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:600;flex:none;}
.stage .sname{font-family:var(--display);font-weight:700;font-size:16px;letter-spacing:0;}
.stage .duo{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.stage .u{border-radius:10px;padding:13px 15px;font-size:13.5px;line-height:1.5;}
.stage .u.a{background:var(--sky-soft);}
.stage .u.b{background:var(--butter-soft);}
.stage .u .ul{font-family:var(--mono);font-size:10px;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-faint);margin-bottom:6px;}
.stage .key{margin-top:12px;background:var(--box-2);border-radius:10px;padding:12px 15px;font-size:13.5px;line-height:1.5;color:var(--ink-soft);}
.stage .key strong{color:var(--ink);font-weight:600;}
@media(max-width:640px){.stage .duo{grid-template-columns:1fr;}}

/* features por perfil */
.feat-group{margin:32px 0 0;}
.feat-group .gt{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-soft);border-bottom:1px solid var(--line-strong);padding-bottom:10px;margin-bottom:14px;}
.feat-list{display:grid;grid-template-columns:1fr 1fr;gap:10px;}
.feat{background:var(--box);border:1px solid var(--line);border-radius:10px;padding:14px 16px;}
.feat .fn{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:3px;}
.feat .fw{font-size:12.5px;color:var(--ink-faint);line-height:1.45;}
@media(max-width:640px){.feat-list{grid-template-columns:1fr;}}

/* pantallas clave */
.screens{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:32px 0 0;}
.screen{background:var(--box);border:1px solid var(--line);border-radius:10px;padding:16px 14px;text-align:center;}
.screen .sn{font-family:var(--mono);font-size:11px;color:var(--ink-faint);margin-bottom:6px;}
.screen .snm{font-size:13.5px;font-weight:600;color:var(--ink);}
.screen .sd{font-size:11.5px;color:var(--ink-faint);margin-top:3px;line-height:1.35;}
@media(max-width:640px){.screens{grid-template-columns:1fr 1fr;}}

/* decisiones transversales */
.decisions{margin:32px 0 0;display:flex;flex-direction:column;gap:12px;}
.decision{display:grid;grid-template-columns:auto 1fr;gap:16px;background:var(--box);border:1px solid var(--line);border-radius:12px;padding:20px 22px;align-items:start;}
.decision .di{font-family:var(--display);font-weight:700;color:var(--burgundy);font-size:18px;line-height:1;}
.decision h3{font-size:15px;font-weight:600;margin:0 0 5px;color:var(--ink);}
.decision p{font-size:14px;line-height:1.55;color:var(--ink-soft);margin:0;}

/* cita / principio destacado a sangre */
.pull{margin:clamp(56px,8vw,110px) auto 0;max-width:960px;}
.pull blockquote{font-family:var(--display);font-weight:700;letter-spacing:0;line-height:1.18;font-size:clamp(24px,3.4vw,40px);margin:0;text-wrap:pretty;color:var(--ink);}
.pull blockquote .placeholder{font-weight:400;}
.pull .who{font-family:var(--mono);font-size:12px;color:var(--ink-faint);margin-top:20px;letter-spacing:.04em;}

/* banda de color */
.band{margin-top:clamp(56px,8vw,110px);padding:clamp(52px,8vw,100px) 0;background:var(--sky);}
.band.butter{background:var(--butter);}
.band .tag{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:22px;display:flex;align-items:center;gap:10px;}
.band .tag::before{content:"";width:26px;height:1px;background:var(--ink);opacity:.4;}
.band h2{font-family:var(--display);font-weight:700;letter-spacing:0;line-height:1.12;font-size:clamp(23px,3.2vw,38px);margin:0;max-width:880px;text-wrap:pretty;}
.band p{font-size:clamp(15px,1.5vw,18px);line-height:1.55;color:var(--ink);max-width:680px;margin:22px 0 0;text-wrap:pretty;}

/* ---------- naming + marca (resumen) ---------- */
.naming-hero{margin:36px 0 0;padding:clamp(40px,6vw,72px) 0;text-align:center;background:var(--box);border:1px solid var(--line);border-radius:16px;}
.naming-hero .big{font-family:var(--display);font-weight:700;font-size:clamp(48px,8vw,92px);line-height:1;letter-spacing:0;color:var(--ink);}
.naming-hero .origin{font-size:clamp(14px,1.5vw,16px);color:var(--ink-soft);margin-top:14px;font-style:italic;max-width:560px;margin-left:auto;margin-right:auto;text-wrap:pretty;}
.roles{display:grid;grid-template-columns:1fr 1fr;gap:clamp(16px,2vw,22px);margin:24px 0 0;}
.role-card{border-radius:14px;padding:24px 26px;border:1px solid var(--line);}
.role-card.a{background:var(--sky-soft);}
.role-card.b{background:var(--butter-soft);}
.role-card .rt{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;color:var(--ink-soft);}
.role-card .rn{font-family:var(--display);font-weight:700;font-size:clamp(22px,2.5vw,28px);letter-spacing:0;margin:6px 0 10px;}
.role-card .rn span{opacity:.45;}
.role-card p{font-size:14px;line-height:1.6;color:var(--ink-soft);margin:0;}
@media(max-width:640px){.roles{grid-template-columns:1fr;}}

/* paleta */
.palette{display:grid;grid-template-columns:repeat(7,1fr);gap:10px;margin:32px 0 0;}
.sw{display:flex;flex-direction:column;}
.sw .chip{height:96px;border-radius:10px;border:1px solid var(--line);}
.sw .swn{font-size:13px;font-weight:600;margin-top:10px;color:var(--ink);}
.sw .swh{font-family:var(--mono);font-size:10.5px;color:var(--ink-faint);margin-top:2px;}
@media(max-width:900px){.palette{grid-template-columns:repeat(4,1fr);}}
@media(max-width:520px){.palette{grid-template-columns:repeat(2,1fr);}}

/* enlace fuerte (conocer más) */
.more-link{display:inline-flex;align-items:center;gap:10px;margin:36px 0 0;font-family:var(--sans);font-weight:600;font-size:clamp(15px,1.5vw,17px);text-decoration:none;color:var(--cream);background:var(--burgundy);border-radius:40px;padding:14px 24px;transition:transform .2s ease,background .2s ease;}
.more-link:hover{background:#2f211f;transform:translateX(4px);}
.more-link .ar{font-size:18px;}

/* ---------- siguiente proyecto ---------- */
.next{display:block;text-decoration:none;color:var(--ink);margin-top:0;border-top:1px solid var(--line-strong);}
.next .inner{padding:clamp(48px,8vw,100px) clamp(20px,5vw,56px);max-width:var(--maxw);margin:0 auto;display:flex;align-items:center;justify-content:space-between;gap:24px;transition:padding .25s ease;}
.next:hover .inner{padding-left:clamp(30px,6vw,80px);}
.next .label{font-family:var(--mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:14px;}
.next .title{font-family:var(--display);font-weight:700;letter-spacing:0;font-size:clamp(26px,4.5vw,54px);line-height:1.02;}
.next .title .placeholder{font-weight:400;}
.next .arrow{font-size:clamp(32px,5.5vw,68px);line-height:1;color:var(--ink);flex:none;transition:transform .25s ease;}
.next:hover .arrow{transform:translateX(12px);}

footer.colophon{padding:40px 0 60px;text-align:center;font-family:var(--mono);font-size:11px;color:var(--ink-faint);}

/* ---------- cierre: ¿Hablamos? + botones + logo animado ---------- */
.closing{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;padding:clamp(60px,9vw,110px) 0 60px;
}
.closing .kicker{
  font-family:var(--display);font-weight:700;font-size:clamp(28px,4vw,44px);letter-spacing:0;
  color:var(--btn-brown,#402900);margin-bottom:26px;
}
.closing-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-bottom:20px;}
.closing-actions a{
  display:inline-flex;align-items:center;gap:8px;
  font-size:17px;text-decoration:none;color:var(--cream);
  border:1px solid var(--btn-brown,#402900);border-radius:30px;
  padding:12px 22px;background:var(--btn-brown,#402900);
  transition:background .15s,border-color .15s,transform .15s;
}
.closing-actions a:hover{background:#FFF098;border-color:#FFF098;color:#402900;transform:translateY(-2px);}
.closing-actions a .arr{font-family:var(--mono);font-size:11px;color:var(--cream);opacity:.7;}
@media(max-width:600px){
  .closing-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;width:100%;max-width:360px;}
  .closing-actions a{justify-content:center;}
}
.logo-anim{position:relative;width:min(340px,60vw);height:min(340px,60vw);display:flex;align-items:center;justify-content:center;}
.logo-anim .logo-real{width:100%;height:100%;object-fit:contain;display:block;}