/* ============================================================
   PORTAFOLIO FOTOGRÁFICO — Sistema de diseño compartido · v2
   Franco & Lucía · Tema "Arena" (claro) · julio 2026
   El acento (--color-accent) se define en el <head> de cada sitio.
   ============================================================ */

:root {
  /* Tema arena — papel fotográfico */
  --color-bg: #EDE7DC;
  --color-surface: #F6F1E7;
  --color-text: #211D16;
  --color-muted: #6E6656;
  --color-border: #D5CCBA;
  --color-accent: #C8832A; /* se sobreescribe por sitio */

  /* Overlays sobre fotografía (siempre oscuros, texto claro) */
  --photo-overlay: rgba(18, 15, 11, .85);
  --photo-text: #F0EDE6;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body: 'DM Sans', -apple-system, sans-serif;

  --s-1: 8px;  --s-2: 16px; --s-3: 24px; --s-4: 32px;
  --s-6: 48px; --s-8: 64px; --s-12: 96px; --s-16: 128px;

  --ease: cubic-bezier(.25, .8, .25, 1);
  --nav-h: 72px;
}

/* ---------- Reset mínimo ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

::selection { background: var(--color-accent); color: #fff; }

/* ---------- Preloader ---------- */
.preloader {
  position: fixed; inset: 0; z-index: 200;
  background: var(--color-bg);
  display: flex; align-items: center; justify-content: center;
  transition: opacity .6s var(--ease), visibility .6s;
}
.preloader.done { opacity: 0; visibility: hidden; }
.preloader__name {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 4vw, 2.2rem);
  letter-spacing: .35em;
  text-transform: uppercase;
  animation: pulse 1.4s ease-in-out infinite;
}
@keyframes pulse { 50% { opacity: .35; } }

/* ---------- Navegación ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 clamp(16px, 4vw, 48px);
  transition: background .4s, border-color .4s;
  border-bottom: 1px solid transparent;
  color: var(--photo-text); /* sobre el hero oscuro */
}
.nav.scrolled, .nav.solid {
  background: rgba(237, 231, 220, .88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom-color: var(--color-border);
  color: var(--color-text);
}
.nav__logo {
  font-family: var(--font-display);
  font-size: 1.15rem;
  letter-spacing: .18em;
  text-transform: uppercase;
}
.nav__logo em { color: var(--color-accent); font-style: normal; }
.nav__links { display: flex; gap: var(--s-4); list-style: none; }
.nav__links a {
  font-size: .8rem; font-weight: 400;
  letter-spacing: .14em; text-transform: uppercase;
  color: inherit; opacity: .72;
  transition: opacity .2s, color .2s;
  padding: 6px 2px;
}
.nav__links a:hover, .nav__links a.active { opacity: 1; }
.nav__burger { display: none; flex-direction: column; gap: 5px; padding: 8px; }
.nav__burger span {
  width: 24px; height: 1.5px; background: currentColor;
  transition: transform .3s var(--ease), opacity .3s;
}
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative; height: 100svh; min-height: 560px;
  display: flex; align-items: flex-end;
  overflow: hidden;
}
.hero--album { height: 72svh; min-height: 480px; }
.hero__bg {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  animation: kenburns 18s var(--ease) both;
  filter: brightness(.8);
}
@keyframes kenburns {
  from { transform: scale(1.12) translateY(-1.5%); }
  to   { transform: scale(1); translateY(0); }
}
.hero::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(18,15,11,.3) 0%, rgba(18,15,11,0) 42%, rgba(18,15,11,.78) 100%);
}
.hero__content {
  position: relative; z-index: 2;
  width: 100%;
  padding: 0 clamp(16px, 4vw, 48px) var(--s-8);
  color: var(--photo-text);
}
.hero__kicker {
  font-size: .8rem; font-weight: 500;
  letter-spacing: .3em; text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--s-2);
}
.hero__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(3rem, 11vw, 8.5rem);
  line-height: 1.02;
  letter-spacing: -0.02em;
}
.hero--album .hero__title { font-size: clamp(2.4rem, 7vw, 5.5rem); }
.hero__title .line { display: block; overflow: hidden; }
.hero__title .line > span {
  display: inline-block;
  transform: translateY(110%);
  animation: rise 1s var(--ease) forwards;
}
.hero__title .line:nth-child(2) > span { animation-delay: .15s; }
@keyframes rise { to { transform: translateY(0); } }
.hero__tagline {
  margin-top: var(--s-3);
  max-width: 52ch;
  color: rgba(240, 237, 230, .78);
  font-size: 1.05rem;
  opacity: 0;
  animation: fadeup .9s var(--ease) .5s forwards;
}
@keyframes fadeup {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero__scroll {
  position: absolute; right: clamp(16px, 4vw, 48px); bottom: var(--s-8);
  z-index: 2;
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  color: rgba(240, 237, 230, .6);
  font-size: .7rem; letter-spacing: .25em; text-transform: uppercase;
  writing-mode: vertical-rl;
}
.hero__scroll::after {
  content: ''; width: 1px; height: 56px;
  background: var(--color-accent);
  animation: drop 1.8s var(--ease) infinite;
  transform-origin: top;
}
@keyframes drop {
  0% { transform: scaleY(0); }
  45% { transform: scaleY(1); transform-origin: top; }
  55% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}
.hero__back {
  position: absolute; top: calc(var(--nav-h) + 16px); left: clamp(16px, 4vw, 48px);
  z-index: 3;
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--photo-text);
  font-size: .78rem; letter-spacing: .16em; text-transform: uppercase;
  opacity: .85; transition: opacity .2s;
}
.hero__back:hover { opacity: 1; }

/* ---------- Filmstrip (firma visual) ---------- */
.filmstrip {
  --hole: rgba(33, 29, 22, .3);
  height: 42px;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}
.filmstrip::before, .filmstrip::after {
  content: ''; position: absolute; left: 0; right: 0; height: 8px;
  background-image: radial-gradient(var(--hole) 40%, transparent 44%);
  background-size: 26px 8px;
  background-repeat: repeat-x;
  animation: film 24s linear infinite;
}
.filmstrip::before { top: 6px; }
.filmstrip::after { bottom: 6px; }
@keyframes film { to { background-position-x: -520px; } }

/* ---------- Secciones ---------- */
.section { padding: var(--s-16) clamp(16px, 4vw, 48px); }
.section--tight { padding-top: var(--s-12); }
.section__head {
  display: flex; align-items: baseline; gap: var(--s-3);
  margin-bottom: var(--s-8);
  max-width: 1200px; margin-left: auto; margin-right: auto;
}
.section__num {
  font-size: .8rem; color: var(--color-accent);
  font-weight: 500; letter-spacing: .1em;
}
.section__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.8rem, 4vw, 3rem);
  letter-spacing: -0.01em;
}
.section__sub { color: var(--color-muted); font-size: .95rem; margin-left: auto; }

/* ---------- Carrusel destacadas ---------- */
.carousel { overflow: hidden; cursor: grab; }
.carousel:active { cursor: grabbing; }
.carousel__track {
  display: flex; gap: var(--s-3);
  width: max-content;
  animation: marquee 40s linear infinite;
}
.carousel:hover .carousel__track,
.carousel.dragging .carousel__track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
.carousel__item {
  position: relative;
  height: clamp(260px, 40vh, 420px);
  flex-shrink: 0;
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}
.carousel__item img {
  height: 100%; width: auto;
  transition: transform .6s var(--ease), filter .6s;
}
.carousel__item:hover img { transform: scale(1.04); filter: brightness(1.05); }
.carousel__item figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: var(--s-4) var(--s-2) var(--s-2);
  background: linear-gradient(transparent, var(--photo-overlay));
  font-size: .72rem; letter-spacing: .18em; text-transform: uppercase;
  color: var(--photo-text);
  opacity: 0; transform: translateY(8px);
  transition: opacity .35s, transform .35s;
}
.carousel__item:hover figcaption { opacity: 1; transform: translateY(0); }

/* ---------- Filtros de galería ---------- */
.filters {
  display: flex; gap: var(--s-2); flex-wrap: wrap;
  max-width: 1200px; margin: 0 auto var(--s-6);
}
.filter-btn {
  padding: 10px 22px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: .8rem; font-weight: 400;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--color-muted);
  transition: color .25s, border-color .25s, background .25s;
}
.filter-btn:hover { color: var(--color-text); border-color: var(--color-muted); }
.filter-btn.active {
  color: #fff;
  background: var(--color-accent);
  border-color: var(--color-accent);
}

/* ---------- Galería masonry ---------- */
.gallery {
  max-width: 1200px; margin: 0 auto;
  columns: 3;
  column-gap: var(--s-3);
}
.gallery__item {
  position: relative;
  margin-bottom: var(--s-3);
  break-inside: avoid;
  overflow: hidden;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  opacity: 0; transform: translateY(28px);
  transition: opacity .7s var(--ease), transform .7s var(--ease);
}
.gallery__item.visible { opacity: 1; transform: translateY(0); }
.gallery__item.hidden-cat { display: none; }
.gallery__item img {
  width: 100%;
  transition: transform .7s var(--ease), filter .5s;
  cursor: zoom-in;
}
.gallery__item:hover img { transform: scale(1.05); filter: brightness(1.05); }
.gallery__meta {
  position: absolute; inset: auto 0 0 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--s-4) var(--s-2) var(--s-2);
  background: linear-gradient(transparent, var(--photo-overlay));
  color: var(--photo-text);
  opacity: 0; transform: translateY(10px);
  transition: opacity .35s, transform .35s;
  pointer-events: none;
}
.gallery__item:hover .gallery__meta,
.gallery__item:focus-within .gallery__meta { opacity: 1; transform: translateY(0); pointer-events: auto; }
.gallery__caption {
  font-size: .72rem; letter-spacing: .18em; text-transform: uppercase;
}
.gallery__caption small { display: block; color: rgba(240,237,230,.65); letter-spacing: .1em; text-transform: none; }
.gallery__dl {
  display: grid; place-items: center;
  width: 38px; height: 38px;
  border: 1px solid rgba(240,237,230,.35);
  border-radius: 50%;
  background: rgba(18,15,11,.45);
  color: var(--photo-text);
  transition: background .25s, border-color .25s, color .25s;
}
.gallery__dl:hover { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }
.gallery__dl svg { width: 15px; height: 15px; }

/* ---------- Galería con pies visibles (páginas de álbum) ---------- */
.gallery--pies .gallery__item { background: transparent; border: none; overflow: visible; }
.gallery--pies .gallery__item img { border: 1px solid var(--color-border); }
.gallery--pies .gallery__pie {
  display: flex; align-items: baseline; justify-content: space-between; gap: var(--s-2);
  padding: 10px 2px 4px;
}
.gallery--pies .gallery__pie p {
  font-size: .88rem; color: var(--color-muted);
  font-style: italic; font-family: var(--font-display);
}
.gallery--pies .gallery__pie .num {
  font-size: .7rem; color: var(--color-accent);
  letter-spacing: .12em; font-style: normal; font-family: var(--font-body);
  flex-shrink: 0;
}

/* ---------- Colecciones (cards en home) ---------- */
.collections {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: var(--s-3);
}
.collection-card {
  position: relative; display: block;
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  aspect-ratio: 4 / 5;
}
.collection-card img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .8s var(--ease), filter .6s;
}
.collection-card:hover img { transform: scale(1.06); filter: brightness(1.05); }
.collection-card__info {
  position: absolute; inset: auto 0 0 0;
  padding: var(--s-6) var(--s-3) var(--s-3);
  background: linear-gradient(transparent, var(--photo-overlay));
  color: var(--photo-text);
}
.collection-card__title {
  font-family: var(--font-display); font-weight: 400;
  font-size: 1.5rem; line-height: 1.15;
}
.collection-card__meta {
  margin-top: 6px;
  font-size: .72rem; letter-spacing: .18em; text-transform: uppercase;
  color: rgba(240,237,230,.7);
}
.collection-card__arrow {
  position: absolute; top: var(--s-2); right: var(--s-2);
  width: 40px; height: 40px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: rgba(18,15,11,.4);
  color: var(--photo-text);
  opacity: 0; transform: translateY(-6px);
  transition: opacity .3s, transform .3s, background .3s;
}
.collection-card:hover .collection-card__arrow {
  opacity: 1; transform: translateY(0);
  background: var(--color-accent);
}

/* ---------- Lightbox (siempre oscuro: la foto manda) ---------- */
.lightbox {
  position: fixed; inset: 0; z-index: 150;
  background: rgba(12, 10, 8, .96);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: opacity .35s, visibility .35s;
  color: var(--photo-text);
}
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox img {
  max-width: min(92vw, 1400px); max-height: 82vh;
  object-fit: contain;
  box-shadow: 0 24px 80px rgba(0,0,0,.6);
  animation: lbin .4s var(--ease);
}
@keyframes lbin {
  from { opacity: 0; transform: scale(.96); }
  to   { opacity: 1; transform: scale(1); }
}
.lightbox__bar {
  position: absolute; left: 0; right: 0; bottom: 0;
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--s-2) clamp(16px, 4vw, 48px);
  font-size: .75rem; letter-spacing: .16em; text-transform: uppercase;
  color: rgba(240,237,230,.7);
}
.lightbox__actions { display: flex; gap: var(--s-2); }
.lightbox__btn {
  display: grid; place-items: center;
  width: 44px; height: 44px;
  border: 1px solid rgba(240,237,230,.3); border-radius: 50%;
  transition: background .25s, border-color .25s, color .25s;
}
.lightbox__btn:hover { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }
.lightbox__btn svg { width: 16px; height: 16px; }
.lightbox__nav {
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 52px; height: 52px;
  display: grid; place-items: center;
  border: 1px solid rgba(240,237,230,.3); border-radius: 50%;
  background: rgba(18,15,11,.5);
  transition: background .25s, border-color .25s, color .25s;
}
.lightbox__nav:hover { background: var(--color-accent); border-color: var(--color-accent); color: #fff; }
.lightbox__nav svg { width: 18px; height: 18px; }
.lightbox__nav--prev { left: clamp(8px, 3vw, 40px); }
.lightbox__nav--next { right: clamp(8px, 3vw, 40px); }
.lightbox__close { position: absolute; top: var(--s-3); right: clamp(16px, 4vw, 48px); }

/* ---------- Perfil ---------- */
.profile {
  max-width: 1200px; margin: 0 auto;
  display: grid; grid-template-columns: 5fr 7fr;
  gap: var(--s-8); align-items: center;
}
.profile__photo { position: relative; }
.profile__photo img { width: 100%; border: 1px solid var(--color-border); }
.profile__photo::after {
  content: ''; position: absolute;
  inset: var(--s-2) calc(-1 * var(--s-2)) calc(-1 * var(--s-2)) var(--s-2);
  border: 1px solid var(--color-accent);
  z-index: -1;
}
.profile__name {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  margin-bottom: var(--s-2);
}
.profile__bio { color: var(--color-muted); max-width: 58ch; margin-bottom: var(--s-2); }
.profile__bio strong { color: var(--color-text); font-weight: 400; }
.profile__social { display: flex; gap: var(--s-2); margin-top: var(--s-4); }
.profile__social a {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px;
  border: 1px solid var(--color-border); border-radius: 999px;
  font-size: .78rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--color-muted);
  transition: color .25s, border-color .25s;
}
.profile__social a:hover { color: var(--color-accent); border-color: var(--color-accent); }
.profile__social svg { width: 15px; height: 15px; }

/* ---------- Enlace cruzado ---------- */
.crosslink {
  display: block;
  position: relative;
  padding: var(--s-12) clamp(16px, 4vw, 48px);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  text-align: center;
  overflow: hidden;
}
.crosslink__label {
  font-size: .75rem; letter-spacing: .3em; text-transform: uppercase;
  color: var(--color-muted); display: block; margin-bottom: var(--s-2);
}
.crosslink__name {
  font-family: var(--font-display);
  font-size: clamp(2rem, 6vw, 4.5rem);
  font-weight: 400;
  transition: color .3s, letter-spacing .5s var(--ease);
}
.crosslink:hover .crosslink__name {
  color: var(--crosslink-accent, var(--color-accent));
  letter-spacing: .03em;
}
.crosslink__arrow {
  display: inline-block; margin-left: .3em;
  transition: transform .4s var(--ease);
}
.crosslink:hover .crosslink__arrow { transform: translateX(12px); }

/* ---------- Footer ---------- */
.footer {
  padding: var(--s-8) clamp(16px, 4vw, 48px);
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--s-2); flex-wrap: wrap;
  color: var(--color-muted); font-size: .78rem;
  letter-spacing: .08em;
}
.footer a { color: var(--color-text); transition: color .2s; }
.footer a:hover { color: var(--color-accent); }

/* ---------- Reveal on scroll ---------- */
.reveal {
  opacity: 0; transform: translateY(32px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .gallery { columns: 2; }
  .collections { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .nav__links {
    position: fixed; inset: var(--nav-h) 0 auto 0;
    flex-direction: column; gap: 0;
    background: rgba(237, 231, 220, .98);
    border-bottom: 1px solid var(--color-border);
    padding: var(--s-2) 0 var(--s-4);
    transform: translateY(-130%);
    transition: transform .4s var(--ease);
    color: var(--color-text);
  }
  .nav__links.open { transform: translateY(0); }
  .nav__links a { display: block; padding: 14px clamp(16px, 4vw, 48px); font-size: .95rem; opacity: 1; }
  .nav__burger { display: flex; }
  .profile { grid-template-columns: 1fr; gap: var(--s-6); }
  .profile__photo { max-width: 420px; }
  .section { padding: var(--s-12) 16px; }
  .lightbox__nav { width: 44px; height: 44px; }
}
@media (max-width: 520px) {
  .gallery { columns: 1; }
  .collections { grid-template-columns: 1fr; }
  .hero__scroll { display: none; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  html { scroll-behavior: auto; }
  .carousel__track { animation: none; }
  .hero__title .line > span { transform: none; }
  .hero__tagline, .reveal, .gallery__item { opacity: 1; transform: none; }
}
