/* =========================================================
   SANTIAGO GAZABA — Fotografía & Filmmaking
   Estética: documental / editorial / cinematográfica
   ========================================================= */

:root{
  --bg:#0c0b0a;
  --bg-soft:#141210;
  --panel:#17150f;
  --text:#ece7df;
  --muted:#9a9085;
  --line:rgba(236,231,223,.14);
  --accent:#c8a16a;          /* ámbar tenue */
  --accent-soft:rgba(200,161,106,.16);
  --maxw:1280px;
  --gap:clamp(14px,2vw,28px);
  --ff-display:"Anton","Archivo Black",Impact,sans-serif;
  --ff-body:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--ff-body);
  background:var(--bg);
  color:var(--text);
  line-height:1.65;
  font-size:16px;
  overflow-x:hidden;
  letter-spacing:.01em;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

/* grano de película global */
body::after{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:9999;
  opacity:.05;mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(18px,4vw,48px)}

/* ---------- Tipografía display ---------- */
.kicker{
  font-family:var(--ff-body);
  text-transform:uppercase;
  letter-spacing:.34em;
  font-size:.7rem;
  font-weight:600;
  color:var(--accent);
}
h1,h2,h3{font-family:var(--ff-display);font-weight:400;line-height:.96;letter-spacing:.01em;text-transform:uppercase}
h1{font-size:clamp(2.6rem,8vw,6.5rem)}
h2{font-size:clamp(2rem,5vw,4rem)}
h3{font-size:clamp(1.3rem,2.6vw,2rem)}

/* =========================================================
   HEADER / NAV
   ========================================================= */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px clamp(18px,4vw,48px);
  transition:background .4s ease,padding .4s ease,border-color .4s;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(12,11,10,.82);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  padding-top:12px;padding-bottom:12px;
}
.brand{
  font-family:var(--ff-display);
  font-size:clamp(1.05rem,1.6vw,1.3rem);
  letter-spacing:.18em;text-transform:uppercase;
  line-height:1;
}
.brand small{display:block;font-family:var(--ff-body);font-size:.52rem;letter-spacing:.42em;color:var(--muted);margin-top:5px;font-weight:600}

.nav{display:flex;gap:clamp(14px,1.6vw,26px);align-items:center}
.nav a{
  font-size:.72rem;text-transform:uppercase;letter-spacing:.16em;
  font-weight:600;color:var(--muted);transition:color .25s;position:relative;padding:4px 0;
}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--accent);transition:width .3s}
.nav a:hover,.nav a.active{color:var(--text)}
.nav a:hover::after,.nav a.active::after{width:100%}
.nav .cta-link{color:var(--accent)}

.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:6px;z-index:1100}
.burger span{width:26px;height:2px;background:var(--text);transition:.3s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media(max-width:920px){
  .nav{
    position:fixed;inset:0;background:rgba(10,9,8,.97);backdrop-filter:blur(8px);
    flex-direction:column;justify-content:center;gap:26px;
    transform:translateX(100%);transition:transform .45s cubic-bezier(.7,0,.2,1);
  }
  .nav.open{transform:translateX(0)}
  .nav a{font-size:1.1rem;letter-spacing:.2em}
  .burger{display:flex}
}

/* =========================================================
   HERO
   ========================================================= */
.hero{
  position:relative;min-height:100svh;display:flex;align-items:flex-end;
  padding-bottom:clamp(48px,9vh,110px);overflow:hidden;
}
.hero-bg{position:absolute;inset:0;z-index:-2}
.hero-bg img{width:100%;height:100%;object-fit:cover;filter:contrast(1.05) saturate(.92) brightness(.7)}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(8,7,6,.55) 0%,rgba(8,7,6,.15) 35%,rgba(8,7,6,.85) 100%)}
.hero .wrap{width:100%}
.hero h1{margin:.18em 0 .25em}
.hero .lead{max-width:46ch;color:#d8d2c8;font-size:clamp(1rem,1.5vw,1.18rem)}
.hero .scroll-hint{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);
  font-size:.6rem;letter-spacing:.3em;color:var(--muted);text-transform:uppercase}
.hero .scroll-hint::after{content:"";display:block;width:1px;height:34px;background:var(--line);margin:10px auto 0;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:.3;transform:scaleY(.6)}50%{opacity:1;transform:scaleY(1)}}

/* page hero (galerías) más compacto */
.page-hero{min-height:62vh}
.page-hero h1{font-size:clamp(2.4rem,7vw,5rem)}

/* =========================================================
   SECCIONES
   ========================================================= */
section{padding:clamp(56px,9vw,120px) 0}
.section-head{margin-bottom:clamp(28px,5vw,56px);max-width:60ch}
.section-head .kicker{margin-bottom:14px;display:inline-block}
.section-head p{color:var(--muted);margin-top:16px;font-size:1.02rem}

/* intro split */
.intro{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(30px,6vw,80px);align-items:center}
.intro .portrait{position:relative}
.intro .portrait img{width:100%;filter:contrast(1.05) saturate(.9) brightness(.85);border:1px solid var(--line)}
.intro p{color:#cfc8bd;margin-bottom:1.1em}
.intro .firma{font-family:var(--ff-display);font-size:1.4rem;letter-spacing:.1em;color:var(--accent);margin-top:.4em}
@media(max-width:820px){.intro{grid-template-columns:1fr}.intro .portrait{order:-1;max-width:440px}}

/* =========================================================
   GRID DE CATEGORÍAS (home)
   ========================================================= */
.cats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.cat{position:relative;overflow:hidden;aspect-ratio:4/5;border:1px solid var(--line)}
.cat img{width:100%;height:100%;object-fit:cover;transition:transform .9s cubic-bezier(.2,.7,.2,1);filter:brightness(.62) contrast(1.05) saturate(.85)}
.cat:hover img{transform:scale(1.06);filter:brightness(.78)}
.cat .label{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:22px}
.cat .label h3{font-size:clamp(1.2rem,2vw,1.7rem)}
.cat .label span{font-size:.66rem;letter-spacing:.26em;text-transform:uppercase;color:var(--accent);margin-top:6px}
.cat .label .go{margin-top:10px;font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);opacity:0;transform:translateY(8px);transition:.4s}
.cat:hover .label .go{opacity:1;transform:translateY(0)}
@media(max-width:820px){.cats{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.cats{grid-template-columns:1fr}.cat{aspect-ratio:16/10}}

/* =========================================================
   GALERÍA (masonry)
   ========================================================= */
.gallery{column-count:3;column-gap:14px}
@media(max-width:900px){.gallery{column-count:2}}
@media(max-width:560px){.gallery{column-count:1}}
.gallery figure{break-inside:avoid;margin:0 0 14px;position:relative;overflow:hidden;border:1px solid var(--line);cursor:zoom-in;background:var(--bg-soft)}
.gallery img{width:100%;transition:transform .8s cubic-bezier(.2,.7,.2,1),filter .5s;filter:contrast(1.04) saturate(.9)}
.gallery figure:hover img{transform:scale(1.04)}
.gallery figure::after{content:"";position:absolute;inset:0;background:rgba(8,7,6,.0);transition:.4s}
.gallery figure:hover::after{background:rgba(8,7,6,.12)}

/* =========================================================
   LIGHTBOX
   ========================================================= */
.lb{position:fixed;inset:0;background:rgba(6,5,4,.96);z-index:5000;display:none;align-items:center;justify-content:center;padding:30px}
.lb.open{display:flex}
.lb img{max-width:92vw;max-height:88vh;object-fit:contain;box-shadow:0 30px 80px rgba(0,0,0,.6)}
.lb .x,.lb .arrow{position:absolute;background:none;border:0;color:#fff;cursor:pointer;font-size:2rem;opacity:.7;transition:.25s;line-height:1}
.lb .x:hover,.lb .arrow:hover{opacity:1}
.lb .x{top:22px;right:28px;font-size:2.4rem}
.lb .arrow{top:50%;transform:translateY(-50%);font-size:3rem;padding:10px 18px}
.lb .prev{left:14px}.lb .next{right:14px}
.lb .count{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);font-size:.75rem;letter-spacing:.2em;color:var(--muted)}

/* =========================================================
   CTA / CONTACTO
   ========================================================= */
.cta-band{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);text-align:center}
.cta-band h2{margin-bottom:.4em}
.cta-band p{color:var(--muted);max-width:50ch;margin:0 auto 28px}

.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 30px;border:1px solid var(--accent);
  color:var(--accent);text-transform:uppercase;letter-spacing:.14em;font-size:.74rem;font-weight:600;
  transition:.3s;background:transparent}
.btn:hover{background:var(--accent);color:#15110a}
.btn.solid{background:var(--accent);color:#15110a}
.btn.solid:hover{background:transparent;color:var(--accent)}
.btn.ghost{border-color:var(--line);color:var(--text)}
.btn.ghost:hover{border-color:var(--text);background:rgba(255,255,255,.04)}
.btn-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* formulario contacto */
.contact{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(34px,6vw,72px)}
@media(max-width:820px){.contact{grid-template-columns:1fr}}
.contact .info p{color:var(--muted);margin-bottom:1em}
.contact .info a.line{display:flex;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid var(--line);color:var(--text);font-size:.95rem;transition:.25s}
.contact .info a.line:hover{color:var(--accent);padding-left:8px}
.contact .info a.line span.k{font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);min-width:92px}
form .field{margin-bottom:18px}
form label{display:block;font-size:.64rem;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);margin-bottom:8px}
form input,form textarea{
  width:100%;background:var(--panel);border:1px solid var(--line);color:var(--text);
  padding:14px 16px;font-family:inherit;font-size:.95rem;transition:.25s;border-radius:2px}
form input:focus,form textarea:focus{outline:none;border-color:var(--accent);background:#1c190f}
form textarea{min-height:130px;resize:vertical}
form .row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:520px){form .row{grid-template-columns:1fr}}

/* =========================================================
   FOOTER
   ========================================================= */
.site-footer{border-top:1px solid var(--line);padding:clamp(40px,6vw,72px) 0 36px;background:var(--bg-soft)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:48px}
@media(max-width:760px){.footer-grid{grid-template-columns:1fr;gap:30px}}
.footer-grid h4{font-size:.66rem;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);margin-bottom:18px}
.footer-grid a{display:block;color:var(--text);padding:6px 0;font-size:.9rem;transition:.2s}
.footer-grid a:hover{color:var(--accent)}
.footer-brand .brand{font-size:1.5rem;margin-bottom:14px}
.footer-brand p{color:var(--muted);font-size:.9rem;max-width:34ch}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:24px;flex-wrap:wrap;gap:12px}
.footer-bottom p{font-size:.74rem;color:var(--muted);letter-spacing:.04em}
.socials{display:flex;gap:18px}
.socials a{font-size:.7rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.socials a:hover{color:var(--accent)}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .9s ease,transform .9s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* whatsapp flotante */
.wa-float{position:fixed;right:20px;bottom:20px;z-index:1200;width:54px;height:54px;border-radius:50%;
  background:#25D366;display:flex;align-items:center;justify-content:center;box-shadow:0 8px 24px rgba(0,0,0,.4);
  transition:transform .25s}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:28px;height:28px;fill:#0b3d24}

.flag-cr{display:inline-block;width:.72em;height:.48em;vertical-align:middle;margin-left:.14em;margin-bottom:.12em;box-shadow:0 0 0 1px rgba(255,255,255,.15)}

/* utilidades */
.center{text-align:center}
.mt-s{margin-top:18px}.mt-m{margin-top:34px}
.divider{height:1px;background:var(--line);margin:0 auto;max-width:var(--maxw)}