/* ============================================================
   PFV — Pablo Fernández del Valle
   Sistema de diseño "Hoja de contactos": negro cálido de cuarto
   oscuro, papel hueso, acento de luz de seguridad, numeración
   tipo contador de fotograma. Tipografía de sistema (serif
   editorial + sans utilitaria) — sin dependencias externas.
   ============================================================ */

:root{
  /* color */
  --ink:        #100e0c;   /* negro cálido, cuarto oscuro */
  --ink-soft:   #17140f;
  --paper:      #f2ede3;   /* hueso / papel */
  --paper-dim:  #e7e0d2;
  --ash:        #9a9284;   /* gris ceniza sobre --ink */
  --ash-dark:   #756e61;   /* gris ceniza sobre --paper */
  --line:       rgba(242,237,227,.14);
  --line-soft:  rgba(16,14,12,.12);
  --safelight:  #b23a2c;   /* luz de seguridad, acento */
  --safelight-soft: rgba(178,58,44,.16);

  /* type */
  --font-display: ui-serif,"Iowan Old Style","Palatino Linotype",Georgia,"Times New Roman",serif;
  --font-sans: "Helvetica Neue",Helvetica,Arial,sans-serif;

  /* motion */
  --ease: cubic-bezier(.22,.61,.36,1);
  --fast: .3s;
  --slow: 1.1s;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}
body{
  margin:0;
  background:var(--ink);
  color:var(--paper);
  font-family:var(--font-sans);
  font-weight:300;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
img{max-width:100%}

:focus-visible{outline:1.5px solid var(--safelight);outline-offset:3px}

.eyebrow{
  display:flex;align-items:center;gap:.75em;
  margin:0 0 1.4rem;
  text-transform:uppercase;letter-spacing:.22em;
  font-size:.62rem;font-weight:500;color:var(--ash);
}
.eyebrow .kicker{
  color:var(--safelight);font-weight:600;letter-spacing:.12em;
}
.profile .eyebrow{color:var(--ash-dark)}

/* sprocket strip — motivo de tira de 35mm, muy discreto */
.sprockets{
  height:14px;
  background-image:radial-gradient(circle,rgba(242,237,227,.35) 1.4px,transparent 1.6px);
  background-size:22px 14px;
  background-position:center;
  background-repeat:repeat-x;
  opacity:.5;
}

/* ---------------------------------------------------------- */
/* Navegación                                                  */
/* ---------------------------------------------------------- */
.masthead{
  position:fixed;inset:0 0 auto;z-index:40;
  height:84px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 4vw;
  color:var(--paper);
  background:linear-gradient(180deg,rgba(16,14,12,.55),transparent);
  transition:background var(--fast) var(--ease),height var(--fast) var(--ease),backdrop-filter var(--fast) var(--ease);
}
.masthead.scrolled{
  height:70px;
  background:rgba(16,14,12,.86);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:center;gap:.6rem;width:auto;height:auto}
.brand img{display:block;width:42px;height:48px;object-fit:contain}
.brand-mark{
  display:none;
  font-family:var(--font-display);font-size:1rem;letter-spacing:.02em;
}
.masthead nav{display:flex;gap:2.6rem;text-transform:uppercase;font-size:.62rem;font-weight:400;letter-spacing:.2em}
.masthead nav a{position:relative;padding:.3rem 0;opacity:.82;transition:opacity var(--fast)}
.masthead nav a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;
  background:var(--safelight);transition:right var(--fast) var(--ease);
}
.masthead nav a:hover{opacity:1}
.masthead nav a:hover::after{right:0}
.menu{display:none}

/* ---------------------------------------------------------- */
/* Hero                                                         */
/* ---------------------------------------------------------- */
.hero{height:100svh;min-height:640px;position:relative;overflow:hidden;background:var(--ink);color:var(--paper)}
.hero-frame{position:absolute;inset:0}
.hero-image{
  position:absolute;inset:0;
  background-position:center;background-size:cover;
  opacity:0;
  transition:opacity 1.4s var(--ease);
  animation:kenburns 14s var(--ease) forwards;
}
.hero-image.is-active{opacity:1;z-index:1}
@keyframes kenburns{
  from{transform:scale(1.06)}
  to{transform:scale(1)}
}
.hero-shade{position:absolute;inset:0;z-index:2;background:linear-gradient(180deg,rgba(16,14,12,.55) 0%,rgba(16,14,12,.06) 32%,rgba(16,14,12,.12) 60%,rgba(16,14,12,.72) 100%)}
.hero-sprockets{position:absolute;left:0;right:0;bottom:0;z-index:3}
.hero-copy{position:absolute;left:4vw;right:4vw;bottom:11vh;z-index:3}
.hero h1{
  max-width:1100px;margin:0;
  font-family:var(--font-display);font-weight:400;font-style:normal;
  font-size:clamp(2.4rem,6.4vw,6.4rem);line-height:1.02;letter-spacing:-.01em;
}
.hero-note{
  position:absolute;right:4vw;bottom:4.6vh;z-index:3;margin:0;
  text-transform:uppercase;letter-spacing:.17em;font-size:.58rem;line-height:1.9;text-align:right;color:var(--ash);
}
.hero-controls{
  position:absolute;right:4vw;top:100px;z-index:3;
  display:flex;align-items:center;gap:.7rem;
  font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  font-size:.68rem;letter-spacing:.08em;color:var(--paper);
}
.frame-counter{
  border:1px solid var(--line);border-radius:3px;
  padding:.35rem .6rem;background:rgba(16,14,12,.35);
  backdrop-filter:blur(4px);
}
.hero-controls button{
  width:32px;height:32px;border:1px solid rgba(242,237,227,.5);border-radius:50%;
  background:rgba(16,14,12,.25);color:var(--paper);cursor:pointer;
  transition:border-color var(--fast),background var(--fast);
}
.hero-controls button:hover{border-color:var(--safelight);background:var(--safelight-soft)}
.scroll-cue{
  position:absolute;left:4vw;bottom:4.6vh;z-index:3;
  display:flex;gap:1rem;align-items:center;
  text-transform:uppercase;letter-spacing:.18em;font-size:.58rem;color:var(--paper);
}
.scroll-cue span{
  display:inline-flex;width:20px;height:20px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:50%;
  animation:bob 2.2s ease-in-out infinite;
}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(4px)}}

/* ---------------------------------------------------------- */
/* Portafolio                                                   */
/* ---------------------------------------------------------- */
.portfolio{padding:9rem 4vw 8rem;background:var(--ink);color:var(--paper)}
.section-heading{
  display:grid;grid-template-columns:1fr auto;align-items:end;
  border-bottom:1px solid var(--line);padding-bottom:2.2rem;gap:2rem;
}
.section-heading h2{
  font-family:var(--font-display);font-weight:400;
  font-size:clamp(2.6rem,4.6vw,4.8rem);line-height:.98;letter-spacing:-.01em;margin:0;
}
.section-count{
  font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  font-size:.68rem;letter-spacing:.08em;color:var(--ash);white-space:nowrap;padding-bottom:.4rem;
}

.filters{display:flex;gap:1.8rem;overflow-x:auto;padding:2.2rem 0 4rem;-ms-overflow-style:none;scrollbar-width:none}
.filters::-webkit-scrollbar{display:none}
.filters button{
  position:relative;border:0;background:transparent;color:var(--ash);
  padding:.5rem 0;text-transform:uppercase;font-size:.6rem;letter-spacing:.16em;
  white-space:nowrap;cursor:pointer;transition:color var(--fast);
}
.filters button::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:100%;
  background:var(--safelight);transform:scaleX(0);transform-origin:left;
  transition:transform var(--fast) var(--ease);
}
.filters button.active,.filters button:hover{color:var(--paper)}
.filters button.active::after{transform:scaleX(1)}

.gallery{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-flow:dense;gap:1.1rem}
.work{margin:0;min-width:0;opacity:0;transform:translateY(22px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
.work.is-visible{opacity:1;transform:translateY(0)}
.work:nth-child(10n+1){grid-column:span 4;grid-row:span 1}
.work:nth-child(10n+1) button{aspect-ratio:16/7.2}
.work:nth-child(10n+6),.work:nth-child(10n+9){grid-column:span 2}
.work:not(:nth-child(10n+1)):not(:nth-child(10n+6)):not(:nth-child(10n+9)){grid-column:span 1}
.work:not(:nth-child(10n+1)) button{aspect-ratio:3/4}
.work:nth-child(10n+6) button,.work:nth-child(10n+9) button{aspect-ratio:16/11}

.work button{
  position:relative;display:block;width:100%;border:0;padding:0;
  background:var(--ink-soft);cursor:zoom-in;overflow:hidden;
}
.work img{display:block;width:100%;height:100%;object-fit:cover;transition:transform 1s var(--ease),filter var(--fast)}
.work button:hover img{transform:scale(1.045)}
.work-overlay{
  position:absolute;inset:0;z-index:2;
  display:flex;align-items:flex-end;padding:1rem;
  background:linear-gradient(180deg,transparent 55%,rgba(16,14,12,.75) 100%);
  opacity:0;transition:opacity var(--fast);
}
.work button:hover .work-overlay{opacity:1}
.work-overlay span{
  text-transform:uppercase;font-size:.58rem;letter-spacing:.16em;color:var(--paper);
  display:flex;align-items:center;gap:.5rem;
}
.work-overlay span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--safelight)}
.work figcaption{
  display:flex;justify-content:space-between;gap:1rem;padding-top:.75rem;
  text-transform:uppercase;font-size:.56rem;letter-spacing:.14em;color:var(--ash);
}
.work figcaption span:last-child{font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;color:var(--ash-dark);color:#6b6459}

.load-more{
  display:block;margin:5rem auto 0;border:1px solid rgba(242,237,227,.35);background:transparent;
  color:var(--paper);padding:1rem 2rem;border-radius:3rem;text-transform:uppercase;
  font-size:.6rem;letter-spacing:.17em;cursor:pointer;transition:border-color var(--fast),background var(--fast);
}
.load-more:hover{border-color:var(--safelight);background:var(--safelight-soft)}

/* ---------------------------------------------------------- */
/* Perfil / Acerca de                                           */
/* ---------------------------------------------------------- */
.profile{
  padding:9rem 4vw;background:var(--paper);color:var(--ink);
  display:grid;grid-template-columns:1fr 3fr;gap:2rem;
}
.profile>div{display:grid;grid-template-columns:.85fr 1.15fr;gap:4.5rem;align-items:center}
.profile-portrait{position:relative;aspect-ratio:4/5;overflow:hidden;background:#000}
.profile-portrait img{width:100%;height:100%;object-fit:cover;filter:grayscale(.15) contrast(1.03)}
.profile-tally{
  position:absolute;left:1.1rem;bottom:1.1rem;
  background:var(--ink);color:var(--paper);
  padding:.7rem .9rem;max-width:11rem;
}
.profile-tally strong{
  display:block;font-family:var(--font-display);font-size:1.9rem;line-height:1;color:var(--safelight);
}
.profile-tally span{display:block;margin-top:.35rem;text-transform:uppercase;font-size:.54rem;letter-spacing:.14em;color:var(--ash)}
.profile-body h2{
  font-family:var(--font-display);font-weight:400;
  font-size:clamp(2.4rem,3.6vw,3.6rem);line-height:1.04;letter-spacing:-.01em;margin:0 0 2rem;
}
.profile-copy{font-family:var(--font-display);font-size:clamp(1.02rem,1.3vw,1.24rem);line-height:1.66;color:#3a362f}
.profile-copy p{margin:0 0 1.3rem}
.profile-copy p:first-child{font-size:1.16em;color:var(--ink)}
.profile-copy p:last-child{margin-bottom:0}

/* ---------------------------------------------------------- */
/* Contacto                                                     */
/* ---------------------------------------------------------- */
.contact{background:var(--ink);color:var(--paper);padding:9rem 4vw 6rem}
.contact h2{
  font-family:var(--font-display);font-weight:400;
  font-size:clamp(4.4rem,11vw,11.5rem);letter-spacing:-.01em;line-height:.86;margin:3.5rem 0 6.5rem;
}
.contact-grid{border-top:1px solid var(--line);padding-top:2.4rem;display:grid;grid-template-columns:2fr 1fr 1fr;gap:2.5rem}
.contact-item label{display:block;text-transform:uppercase;font-size:.56rem;letter-spacing:.16em;color:var(--ash);margin-bottom:.7rem}
.contact-item a,.contact-item address{font-style:normal;line-height:1.55}
.contact-item:first-child a{
  font-family:var(--font-display);font-size:clamp(1.3rem,2.4vw,2.2rem);font-weight:400;
  border-bottom:1px solid transparent;transition:border-color var(--fast),color var(--fast);
}
.contact-item:first-child a:hover{border-color:var(--safelight);color:var(--safelight)}
.contact-item:not(:first-child){font-size:.92rem;color:var(--paper)}
.contact-item a[href*="facebook"]{transition:color var(--fast)}
.contact-item a[href*="facebook"]:hover{color:var(--safelight)}

footer{
  background:var(--ink);color:var(--ash);padding:2.6rem 4vw 3rem;
  display:flex;justify-content:space-between;align-items:center;
  font-size:.56rem;text-transform:uppercase;letter-spacing:.17em;
  border-top:1px solid var(--line);
}
footer a{transition:color var(--fast)}
footer a:hover{color:var(--safelight)}

/* ---------------------------------------------------------- */
/* Lightbox                                                      */
/* ---------------------------------------------------------- */
dialog{width:100vw;height:100vh;max-width:none;max-height:none;border:0;background:rgba(16,14,12,.98);padding:2rem;color:var(--paper)}
dialog::backdrop{background:#000}
.lightbox-figure{width:100%;height:100%;margin:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem}
.lightbox-figure img{width:100%;height:calc(100% - 2.2rem);object-fit:contain;opacity:0;transition:opacity var(--fast) var(--ease)}
.lightbox-figure img.is-loaded{opacity:1}
.lightbox-meta{
  font-family:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
  font-size:.68rem;letter-spacing:.1em;color:var(--ash);
}
.close,.previous,.next{
  position:absolute;color:var(--paper);background:rgba(16,14,12,.4);
  border:1px solid rgba(242,237,227,.4);border-radius:50%;
  width:44px;height:44px;font-size:1.1rem;cursor:pointer;
  transition:border-color var(--fast),background var(--fast);
}
.close:hover,.previous:hover,.next:hover{border-color:var(--safelight);background:var(--safelight-soft)}
.close{right:2rem;top:2rem}
.previous{left:2rem;top:50%;transform:translateY(-50%)}
.next{right:2rem;top:50%;transform:translateY(-50%)}

/* ---------------------------------------------------------- */
/* Responsive                                                    */
/* ---------------------------------------------------------- */
@media(max-width:980px){
  .gallery{grid-template-columns:repeat(2,1fr)}
  .work:nth-child(10n+1){grid-column:span 2}
  .work:nth-child(10n+6),.work:nth-child(10n+9){grid-column:span 1}
  .work:nth-child(10n+6) button,.work:nth-child(10n+9) button{aspect-ratio:3/4}
  .profile>div{grid-template-columns:1fr;gap:2.5rem}
  .profile-portrait{max-width:340px}
}

@media(max-width:760px){
  .masthead{height:70px;padding:0 5vw}
  .masthead.scrolled{height:62px}
  .masthead nav{
    display:none;position:absolute;top:70px;right:5vw;left:5vw;flex-direction:column;gap:0;
    background:var(--ink);border:1px solid var(--line);padding:.5rem 1.2rem;
  }
  .masthead nav.open{display:flex}
  .masthead nav a{padding:1rem 0;border-bottom:1px solid var(--line)}
  .masthead nav a:last-child{border-bottom:0}
  .menu{
    display:block;background:transparent;color:var(--paper);border:1px solid rgba(242,237,227,.4);
    border-radius:2rem;padding:.5rem 1rem;text-transform:uppercase;font-size:.58rem;letter-spacing:.12em;
  }
  .brand img{width:36px;height:41px}
  .hero-copy{left:5.5vw;right:5.5vw;bottom:14vh}
  .hero h1{font-size:clamp(2.1rem,9.5vw,3.4rem)}
  .hero-note{left:5.5vw;right:auto;bottom:5.5vh;text-align:left}
  .hero-controls{right:5.5vw;top:84px}
  .scroll-cue{display:none}

  .portfolio{padding:6.5rem 5.5vw 5rem}
  .section-heading{grid-template-columns:1fr}
  .section-count{padding-bottom:0;margin-top:.6rem}
  .gallery{grid-template-columns:1fr;gap:0}
  .work{margin-bottom:3rem}
  .work:nth-child(10n+1),.work:nth-child(10n+6),.work:nth-child(10n+9){grid-column:auto}
  .work button,.work:nth-child(10n+1) button,.work:nth-child(10n+6) button,.work:nth-child(10n+9) button{aspect-ratio:4/5}

  .profile{padding:6.5rem 5.5vw}
  .profile>div{grid-template-columns:1fr}
  .profile-portrait{max-width:none}

  .contact{padding:6.5rem 5.5vw 4rem}
  .contact h2{margin:3rem 0 4.5rem}
  .contact-grid{grid-template-columns:1fr;gap:2.2rem}

  footer{flex-direction:column;gap:.8rem;align-items:flex-start}
  .previous{left:.6rem}
  .next{right:.6rem}
  .close{right:.6rem;top:1rem}
}