/* Chenko — sitio personal. Editorial oscuro, blanco y negro, alto contraste tipográfico. */
:root{
  --bg:#050A11; --bg-2:rgba(5,12,21,.55); --card:rgba(10,22,36,.45);
  --ivory:#EFEAE1; --ivory-2:#CDD4DC; --ivory-3:#9AA4B1;
  --accent:#C2A268; --accent-dim:rgba(194,162,104,.30);
  --line:rgba(239,234,225,.12); --line-2:rgba(239,234,225,.07);
  --display:"Instrument Serif",Georgia,"Times New Roman",serif;
  --body:"Inter",-apple-system,"Segoe UI",Helvetica,Arial,sans-serif;
  --maxw:1180px;
  --pad:clamp(20px,5vw,64px);
  --wide:calc(var(--maxw) + var(--pad)*2);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--bg)}
body{margin:0;background:transparent;color:var(--ivory);font:300 17px/1.7 var(--body);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
h1,h2,h3{margin:0;font-family:var(--display);font-weight:400;line-height:1.04;letter-spacing:-.015em;text-wrap:balance}
h1 em,h2 em,h3 em,p em{font-style:italic}
p{margin:0}
b,strong{font-weight:500}
figure{margin:0}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:16px;background:var(--accent);color:#050A11;padding:10px 14px;border-radius:2px;z-index:99}
:focus-visible{outline:1px solid var(--accent);outline-offset:4px}

/* grano de película sobre todo el sitio */
body::after{content:"";position:fixed;inset:0;z-index:60;pointer-events:none;opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/></filter><rect width='140' height='140' filter='url(%23n)'/></svg>")}

/* fondo de acuarela azul, movimiento muy lento */
.bg{position:fixed;inset:0;z-index:-2;overflow:hidden;background:var(--bg);pointer-events:none}
.bg i{position:absolute;inset:-30%;display:block;background:url("assets/img/fondo.webp") center/cover no-repeat;will-change:transform}
.bg i:nth-child(1){opacity:1;animation:deriva1 165s ease-in-out infinite alternate}
.bg i:nth-child(2){opacity:.22;mix-blend-mode:screen;animation:deriva2 245s ease-in-out infinite alternate}
@keyframes deriva1{from{transform:scale(1.06) translate3d(-3%,-2.2%,0)}to{transform:scale(1.28) translate3d(3.6%,4%,0)}}
@keyframes deriva2{from{transform:scale(1.5) rotate(180deg) translate3d(3%,2%,0)}to{transform:scale(1.74) rotate(180deg) translate3d(-3.6%,-4%,0)}}
.bg::after{content:"";position:absolute;inset:0;
  background:radial-gradient(130% 100% at 50% 36%,rgba(4,8,14,.20) 0%,rgba(4,8,14,.48) 62%,rgba(4,8,14,.80) 100%),
             linear-gradient(to bottom,rgba(4,8,14,.52),rgba(4,8,14,.34) 26%,rgba(4,8,14,.42) 70%,rgba(4,8,14,.74))}

/* ── nav ───────────────────────────────────────── */
.nav{position:sticky;top:0;z-index:50;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:16px var(--pad);background:rgba(5,10,17,.72);backdrop-filter:blur(14px) saturate(1.2);
  border-bottom:1px solid transparent;transition:border-color .4s ease,padding .4s ease}
.nav.scrolled{border-bottom-color:var(--line-2);padding-block:10px}
.brand{display:block;line-height:0}
.brand img{width:auto;height:26px;transition:height .4s ease,opacity .3s}
.nav.scrolled .brand img{height:21px}
.brand:hover img{opacity:.75}
.nav-right{display:flex;align-items:center;gap:clamp(14px,2.4vw,30px)}
.nav-links{display:flex;flex-wrap:wrap;gap:clamp(12px,2vw,26px);align-items:center;font:400 .82rem/1 var(--body);letter-spacing:.04em}
.nav-links a{text-decoration:none;color:var(--ivory-2);padding:6px 0;position:relative;transition:color .3s}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--accent);transition:right .35s cubic-bezier(.2,.7,.3,1)}
.nav-links a:hover{color:var(--ivory)}
.nav-links a:hover::after{right:0}
.lang{display:flex;align-items:center;gap:2px;border:1px solid var(--line);border-radius:100px;padding:3px}
.lang button{appearance:none;background:none;border:0;cursor:pointer;color:var(--ivory-3);
  font:500 .68rem/1 var(--body);letter-spacing:.14em;padding:6px 10px;border-radius:100px;transition:color .25s,background .25s}
.lang button:hover{color:var(--ivory)}
.lang button[aria-pressed="true"]{background:var(--accent);color:#050A11}
.progress{position:absolute;left:0;bottom:-1px;height:1px;width:100%;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .1s linear}
@media (max-width:1040px){.nav-links a[data-i18n="nav.obras"]{display:none}}
@media (max-width:900px){.nav-links a[data-i18n="nav.estudio"]{display:none}}
@media (max-width:680px){.nav-links a:not(.nav-cta){display:none}}

/* ── hero ──────────────────────────────────────── */
.hero{position:relative;padding:clamp(40px,7vw,90px) var(--pad) 0;overflow:hidden;isolation:isolate}
.hero::before{content:"";position:absolute;left:50%;top:-25%;width:min(1000px,110vw);aspect-ratio:1;transform:translateX(-50%);
  background:radial-gradient(closest-side,rgba(194,162,104,.07),transparent 70%);pointer-events:none;z-index:-1}
.hero-inner{position:relative;max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:1.08fr .92fr;
  gap:clamp(28px,5vw,72px);align-items:center;min-height:min(80svh,740px)}
.kicker{font:400 .72rem/1.6 var(--body);letter-spacing:.26em;text-transform:uppercase;color:var(--ivory-3);margin-bottom:26px}
.hero h1{font-size:clamp(3rem,8.4vw,6.4rem);letter-spacing:-.025em}
.lede{margin-top:26px;max-width:50ch;color:var(--ivory-2);font-size:1.05rem;line-height:1.75}
.hero-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:36px}
.btn{display:inline-block;padding:15px 26px;border-radius:100px;text-decoration:none;
  font:500 .82rem/1 var(--body);letter-spacing:.06em;transition:transform .3s,background .3s,color .3s,border-color .3s}
.btn-solid{background:var(--ivory);color:#050A11}
.btn-solid:hover{background:var(--accent);transform:translateY(-2px)}
.btn-ghost{border:1px solid var(--line);color:var(--ivory-2)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.hero-shot{position:relative;justify-self:end;width:100%;max-width:400px}
.hero-shot img{border-radius:2px}
.hero-shot::after{content:"";position:absolute;inset:0;border:1px solid var(--line);border-radius:2px;pointer-events:none}
@media (max-width:880px){
  .hero-inner{grid-template-columns:1fr;min-height:0;padding-block:10px 0}
  .hero-shot{justify-self:start;max-width:300px;order:-1}
}

/* cifras */
.facts{position:relative;max-width:var(--maxw);margin:clamp(46px,7vw,86px) auto 0;
  display:grid;grid-template-columns:repeat(auto-fit,minmax(170px,1fr));border-top:1px solid var(--line)}
.facts div{padding:26px 24px 26px 0;display:grid;gap:8px;border-right:1px solid var(--line-2)}
.facts div:last-child{border-right:0}
.facts b i{font-style:normal}
.facts b{font-family:var(--display);font-weight:400;font-size:clamp(2.1rem,4.4vw,2.9rem);line-height:1;
  font-variant-numeric:tabular-nums;color:var(--ivory)}
.facts span{font:400 .78rem/1.5 var(--body);letter-spacing:.04em;color:var(--ivory-3);max-width:22ch}
@media (max-width:720px){.facts div{border-right:0;border-bottom:1px solid var(--line-2);padding-right:0}}

/* marquesina */
.ticker{overflow:hidden;border-block:1px solid var(--line-2);padding:16px 0;background:rgba(5,12,21,.45);backdrop-filter:blur(2px);margin-top:clamp(50px,7vw,90px)}
.ticker-track{display:flex;gap:34px;white-space:nowrap;width:max-content;animation:slide 70s linear infinite;
  font:400 .74rem/1 var(--body);letter-spacing:.22em;text-transform:uppercase;color:var(--ivory-3)}
.ticker i{color:var(--accent);font-style:normal}
@keyframes slide{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ── secciones ─────────────────────────────────── */
.sec{max-width:var(--wide);margin:0 auto;padding:clamp(72px,10vw,150px) var(--pad)}
.sec-alt{background:var(--bg-2);backdrop-filter:blur(2px);max-width:none;border-block:1px solid var(--line-2);padding-inline:0}
.sec-alt>*{max-width:var(--wide);margin-inline:auto;padding-inline:var(--pad)}
.eyebrow{font:400 .7rem/1 var(--body);letter-spacing:.26em;text-transform:uppercase;color:var(--accent)}
.sec-head{display:grid;gap:18px;margin-bottom:clamp(38px,6vw,64px)}
.sec-head h2{font-size:clamp(2.3rem,5.4vw,3.7rem)}
.sec-lede{color:var(--ivory-2);max-width:58ch;font-size:1.02rem}

/* servicios */
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));border-top:1px solid var(--line)}
.card{padding:34px 30px 38px 0;display:grid;gap:12px;align-content:start;
  border-bottom:1px solid var(--line-2);border-right:1px solid var(--line-2);
  transform-style:preserve-3d;transition:background .4s,transform .35s cubic-bezier(.2,.7,.3,1)}
.card:hover{background:rgba(239,234,225,.03)}
.card .num{font:400 .7rem/1 var(--body);letter-spacing:.2em;color:var(--accent)}
.card h3{font-size:1.5rem}
.card p{color:var(--ivory-3);font-size:.94rem;line-height:1.7;max-width:36ch}
@media (max-width:760px){.card{border-right:0;padding-right:0}}

/* filtros */
.filters{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:26px}
.filters button{appearance:none;cursor:pointer;background:none;border:1px solid var(--line);border-radius:100px;
  color:var(--ivory-3);font:400 .76rem/1 var(--body);letter-spacing:.12em;text-transform:uppercase;
  padding:11px 18px;transition:color .3s,border-color .3s,background .3s}
.filters button:hover{color:var(--ivory);border-color:var(--ivory-3)}
.filters button[aria-pressed="true"]{background:var(--ivory);border-color:var(--ivory);color:#050A11}

/* trabajos */
.works{list-style:none;margin:0;padding:0;border-top:1px solid var(--line)}
.work{display:grid;grid-template-columns:92px 1fr auto;gap:clamp(16px,3vw,36px);align-items:baseline;
  padding:26px 0;border-bottom:1px solid var(--line-2);position:relative;
  transition:padding-left .4s cubic-bezier(.2,.7,.3,1),opacity .4s}
.work[hidden]{display:none}
.work::before{content:"";position:absolute;left:-16px;top:50%;width:6px;height:1px;background:var(--accent);
  transform:scaleX(0);transform-origin:right;transition:transform .4s}
.work:hover{padding-left:14px;background:rgba(239,234,225,.02)}
.work:hover::before{transform:scaleX(1);transform-origin:left}
.work .yr{font:400 .78rem/1.8 var(--body);letter-spacing:.08em;color:var(--ivory-3);font-variant-numeric:tabular-nums}
.work h3{font-size:1.45rem;margin-bottom:6px}
.work p{color:var(--ivory-3);font-size:.9rem;line-height:1.65;max-width:52ch}
.work .rol{font:400 .76rem/1.8 var(--body);letter-spacing:.1em;text-transform:uppercase;color:var(--accent);text-align:right}
@media (max-width:800px){.work{grid-template-columns:1fr;gap:8px}.work .rol{text-align:left}}

/* obras */
.obras{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:clamp(24px,4vw,44px)}
.obra{display:grid;gap:12px;align-content:start;padding-top:22px;border-top:1px solid var(--accent-dim)}
.obra h3{font-size:1.3rem}
.obra p{color:var(--ivory-3);font-size:.93rem;line-height:1.75}
.obras-foot{margin-top:clamp(32px,5vw,52px);color:var(--ivory-3);font-size:.85rem;letter-spacing:.02em}

/* docencia */
.teach{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:clamp(18px,3vw,30px)}
.school{text-decoration:none;color:inherit;border:1px solid var(--line);border-radius:3px;background:var(--card);backdrop-filter:blur(3px);padding:clamp(24px,3vw,36px);
  display:grid;gap:16px;align-content:start;transform-style:preserve-3d;
  transition:border-color .4s,transform .35s cubic-bezier(.2,.7,.3,1)}
.school:hover{border-color:var(--accent-dim)}
.school-mark{height:92px;display:flex;align-items:center}
.school-mark img{max-height:92px;width:auto;filter:grayscale(1) brightness(1.15);opacity:.88;transition:filter .6s,opacity .6s}
.school:hover .school-mark img{filter:none;opacity:1}
.school h3{font-size:1.35rem}
.school p{color:var(--ivory-3);font-size:.94rem;line-height:1.75}
.school-link{margin-top:2px;font:400 .76rem/1 var(--body);letter-spacing:.12em;text-transform:uppercase;color:var(--accent);
  display:inline-flex;align-items:center;gap:7px}
.school-link em{font-style:normal;transition:transform .35s cubic-bezier(.2,.7,.3,1)}
a.school:hover .school-link em{transform:translate(3px,-3px)}

/* estudio */
.studio{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:clamp(18px,3vw,34px);align-items:end}
.studio figure{position:relative}
.studio img{border-radius:2px;width:100%;will-change:transform}
.studio figure::after{content:"";position:absolute;inset:0;border:1px solid var(--line);border-radius:2px;pointer-events:none}
.studio figcaption{margin-top:12px;font:400 .74rem/1.6 var(--body);letter-spacing:.14em;text-transform:uppercase;color:var(--ivory-3)}

/* sobre */
.about{display:grid;grid-template-columns:1fr 1fr;gap:clamp(28px,5vw,70px);align-items:center}
.about-shot{position:relative}
.about-shot img{border-radius:2px;border:1px solid var(--line)}
.about-shot figcaption{margin-top:12px;font:400 .74rem/1.6 var(--body);letter-spacing:.1em;color:var(--ivory-3)}
.about-copy{display:grid;gap:20px}
.about-copy h2{font-size:clamp(2rem,4.4vw,3rem);margin-bottom:4px}
.about-copy p{color:var(--ivory-2);font-size:1rem;line-height:1.8}
@media (max-width:860px){.about{grid-template-columns:1fr}}

/* contacto */
.sec-contact{text-align:center}
.contact{display:grid;gap:22px;justify-items:center}
.contact h2{font-size:clamp(2.4rem,6vw,4rem)}
.contact .sec-lede{text-align:center;max-width:56ch}
.mail{font-family:var(--display);font-size:clamp(1.5rem,3.6vw,2.4rem);margin-top:6px}
.mail a{color:var(--ivory);text-decoration:none;border-bottom:1px solid var(--accent-dim);padding-bottom:4px;transition:border-color .3s,color .3s}
.mail a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.loc{color:var(--ivory-3);font-size:.85rem;letter-spacing:.06em}

/* redes */
.social{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:14px}
.social a{display:inline-flex;align-items:center;gap:9px;text-decoration:none;color:var(--ivory-2);
  border:1px solid var(--line);border-radius:100px;padding:10px 18px;
  font:400 .78rem/1 var(--body);letter-spacing:.1em;transition:border-color .3s,color .3s,transform .3s}
.social a:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
.social svg{width:15px;height:15px;fill:currentColor;flex:none}

/* footer */
.foot{max-width:var(--wide);margin:0 auto;padding:30px var(--pad) 46px;border-top:1px solid var(--line-2);
  display:flex;flex-wrap:wrap;gap:10px 28px;justify-content:space-between;align-items:center;
  color:var(--ivory-3);font-size:.78rem;letter-spacing:.06em}

/* reveal (defensivo: si el JS falla, el contenido se ve igual) */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .9s cubic-bezier(.2,.7,.3,1),transform .9s cubic-bezier(.2,.7,.3,1)}
.reveal.in,.no-js .reveal{opacity:1;transform:none}
.reveal[data-split]{opacity:1;transform:none}