/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg:       #0b0a09;
  --panel:    #14110f;
  --paper:    #f3ede2;
  --mute:     rgba(243, 237, 226, 0.66);
  --faint:    rgba(243, 237, 226, 0.4);
  --line:     rgba(243, 237, 226, 0.14);
  --accent:   #e2956f;

  --serif: "Fraunces", Georgia, serif;
  --sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --pad: clamp(1.1rem, 2.4vw, 2rem);
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; background: var(--bg); }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--paper);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; padding: 0; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3 {
  font-family: var(--serif);
  color: var(--paper);
  text-wrap: balance;
  line-height: 1.1;
  letter-spacing: -0.01em;
  font-weight: 500;
}
em { font-style: italic; color: var(--accent); }
::selection { background: var(--accent); color: var(--bg); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; top: -100px; left: 1rem; z-index: 9999;
  padding: .6rem 1rem; background: var(--paper); color: var(--bg);
  border-radius: 8px; font-weight: 500; transition: top .2s var(--ease-out);
}
.skip-link:focus { top: 1rem; }

/* =============================================================
   3. Fondo: la foto principal
   ============================================================= */
.stage-bg { position: fixed; inset: 0; z-index: 0; overflow: hidden; background: var(--bg); }
.stage-bg img {
  position: absolute; inset: 0;
  width: 100%; height: 100%; object-fit: cover;
  filter: brightness(.66) saturate(1.08);
  transform: translate3d(var(--bx, 0px), var(--by, 0px), 0) scale(1.06);
  will-change: transform, opacity;
  opacity: 0;
  transition: opacity 1.2s ease, transform .9s var(--ease-out);
}
.stage-bg img.is-on { opacity: 1; }
.stage-bg img:not([src]) { visibility: hidden; }
.stage-bg::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(120% 95% at 50% 46%, transparent 32%, rgba(0,0,0,.5) 100%),
    linear-gradient(180deg, rgba(0,0,0,.5) 0%, transparent 20%, transparent 68%, rgba(0,0,0,.6) 100%);
}

/* =============================================================
   4. Nav minimalista
   ============================================================= */
.nav {
  position: fixed; top: 0; inset-inline: 0; z-index: 30;
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  padding: 1.35rem var(--pad);
  pointer-events: none;
}
.nav > * { pointer-events: auto; }
.nav::before {
  content: ""; position: absolute; inset: 0 0 -1.5rem 0; z-index: -1; pointer-events: none;
  background: linear-gradient(180deg, rgba(0,0,0,.55), transparent);
}
.nav-brand {
  justify-self: start;
  font-size: .82rem; font-weight: 400; letter-spacing: .16em; text-transform: uppercase;
}
.nav-links { display: flex; gap: 1.9rem; }
.nav-link, .nav-ext {
  position: relative;
  font-size: .9rem; font-weight: 500;
  padding-block: .25rem;
}
.nav-ext { justify-self: end; }
.nav-link::after, .nav-ext::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: right;
  transition: transform .4s var(--ease-out);
}
.nav-link:hover::after, .nav-ext:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-brand, .nav-link, .nav-ext { text-shadow: 0 1px 14px rgba(0,0,0,.55); }

/* =============================================================
   5. Lienzo (galería que se arrastra)
   Sin JS, la galería se ve como una retícula normal. main.js añade
   .is-canvas al <html> y entonces las fotos pasan a flotar.
   ============================================================= */
.stage { position: relative; z-index: 1; padding: 6rem var(--pad) 3rem; }
.gallery-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 1rem;
}
.gallery-item.is-hidden { display: none; }
.gallery-trigger {
  display: block; width: 100%; height: 100%; position: relative;
  border-radius: 8px; overflow: hidden;
  background: #1c1916;
  /* --dp (0.7 lejos → 1.5 cerca) la pone main.js: las fotos "cercanas" proyectan más sombra */
  box-shadow:
    0 calc(16px * var(--dp, 1)) calc(36px * var(--dp, 1)) -12px rgba(0,0,0,.72),
    0 2px 8px rgba(0,0,0,.45);
}
.gallery-img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
.gallery-item[data-aspect="tall"] .gallery-img { aspect-ratio: 3 / 4; }

/* Descripción: solo las astrofotos la llevan. En la tarjeta aparece al pasar el
   mouse; en el visor ampliado siempre (y es lo que se ve en el celular). */
.gallery-caption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 1.8rem .8rem .7rem;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,.78));
  font-size: .78rem; line-height: 1.35; text-align: left;
  opacity: 0; transition: opacity .35s var(--ease-out);
}

/* HUD inferior: filtros e indicaciones */
.hud {
  position: fixed; inset: auto 0 0 0; z-index: 20;
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: end;
  padding: 0 var(--pad) 1.4rem;
  pointer-events: none;
}
.hud > * { pointer-events: auto; }
.hud::before {
  content: ""; position: absolute; inset: -2.5rem 0 0 0; z-index: -1; pointer-events: none;
  background: linear-gradient(0deg, rgba(0,0,0,.62), transparent);
}
.hud-tag, .hud-count, .hint {
  font-size: .68rem; font-weight: 500; letter-spacing: .14em; text-transform: uppercase;
  color: var(--faint); text-shadow: 0 1px 10px rgba(0,0,0,.6);
}
.hud-count { justify-self: end; }
.hud-center { display: flex; flex-direction: column; align-items: center; gap: .75rem; }
.filter-bar { display: flex; flex-wrap: wrap; justify-content: center; gap: .4rem 1.3rem; }
.filter-btn {
  position: relative;
  font-size: .72rem; font-weight: 500; letter-spacing: .12em; text-transform: uppercase;
  color: var(--mute); padding-block: .25rem;
  text-shadow: 0 1px 10px rgba(0,0,0,.6);
  transition: color .3s var(--ease-out);
}
.filter-btn::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px; background: var(--paper);
  transform: scaleX(0); transition: transform .4s var(--ease-out);
}
.filter-btn:hover { color: var(--paper); }
.filter-btn.is-active { color: var(--paper); }
.filter-btn.is-active::after { transform: scaleX(1); }
.hint { transition: opacity .6s var(--ease-out); }
.has-moved .hint { opacity: 0; }

/* --- Modo lienzo --- */
.is-canvas, .is-canvas body { height: 100%; overflow: hidden; overscroll-behavior: none; }
.is-canvas .stage { position: static; padding: 0; }
.is-canvas .canvas {
  position: fixed; inset: 0; z-index: 1;
  overflow: clip;
  cursor: grab; touch-action: none;
  -webkit-user-select: none; user-select: none;
  transition: opacity .24s var(--ease-out);
}
.is-canvas .canvas.is-dragging { cursor: grabbing; }
.is-canvas .canvas.is-leaving { opacity: 0; }
.is-canvas .gallery-grid { display: block; position: absolute; inset: 0; }
.is-canvas .gallery-item {
  position: absolute; left: 0; top: 0;
  z-index: var(--z, 1);
  will-change: transform;
}
.is-canvas .gallery-item:hover { z-index: 900; }
.is-canvas .gallery-img {
  aspect-ratio: auto;
  opacity: 0; transition: opacity .6s var(--ease-out);
  pointer-events: none; -webkit-user-drag: none;
}
.is-canvas .gallery-img.is-loaded { opacity: 1; }

/* entrada: cada tarjeta aparece con un retraso aleatorio (--d) */
.is-canvas .gallery-trigger {
  opacity: 0; scale: .6;
  transition:
    opacity .7s var(--ease-out) var(--d, 0s),
    scale .9s var(--ease-out) var(--d, 0s),
    transform .5s var(--ease-out),
    box-shadow .5s var(--ease-out);
}
.is-canvas .gallery-item.is-in .gallery-trigger { opacity: 1; scale: 1; }

@media (hover: hover) and (pointer: fine) {
  .is-canvas .gallery-item:hover .gallery-trigger {
    transform: rotate(calc(var(--rot, 0deg) * -1)) scale(1.08);
    box-shadow: 0 34px 60px -16px rgba(0,0,0,.8), 0 4px 12px rgba(0,0,0,.5);
  }
  .is-canvas .gallery-item:hover .gallery-caption { opacity: 1; }
}

/* =============================================================
   6. Paneles (Sobre mí / Contacto)
   ============================================================= */
.panel {
  margin: 0 0 0 auto; height: 100svh; max-height: none;
  width: min(560px, 100vw); max-width: none;
  border: 0; padding: 0;
  background: var(--panel); color: var(--paper);
  box-shadow: -30px 0 80px rgba(0,0,0,.5);
}
.panel::backdrop { background: rgba(6,5,4,.55); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.panel[open] { animation: panelIn .55s var(--ease-out); }
@keyframes panelIn { from { transform: translateX(48px); opacity: 0; } }
.panel-body {
  height: 100%; overflow-y: auto; padding: 5.5rem clamp(1.4rem, 5vw, 2.6rem) 2.6rem;
  scrollbar-width: thin; scrollbar-color: rgba(243,237,226,.25) transparent;
}
.panel-close {
  position: absolute; top: 1.2rem; right: 1.2rem;
  width: 42px; height: 42px; display: grid; place-items: center;
  border-radius: 50%; background: rgba(243,237,226,.08); font-size: 1.1rem;
  transition: background-color .3s var(--ease-out);
}
.panel-close:hover { background: rgba(243,237,226,.18); }

.kicker {
  font-size: .72rem; font-weight: 500; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent); margin-bottom: .9rem;
}
.panel h2 { font-size: clamp(1.8rem, 5vw, 2.4rem); margin-bottom: 1.2rem; }
.panel h3 { font-size: 1.25rem; margin: 2rem 0 .7rem; }
.panel p { max-width: 55ch; margin-bottom: 1rem; color: var(--mute); }
.about-figure { border-radius: 14px; overflow: hidden; max-width: 240px; margin-bottom: 1.8rem; }
.about-figure img { aspect-ratio: 4 / 5; object-fit: cover; width: 100%; }
.about-stack {
  margin-top: 1.8rem; padding-top: 1.3rem; border-top: 1px solid var(--line);
  font-size: .9rem;
}
.about-stack strong { font-weight: 500; color: var(--paper); }

.contact-links { display: flex; flex-direction: column; align-items: flex-start; gap: .9rem; margin: 1.6rem 0 2.4rem; }
.contact-link {
  position: relative;
  font-family: var(--serif); font-style: italic; font-size: clamp(1.5rem, 5vw, 2rem);
}
.contact-link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px;
  height: 1px; background: var(--accent);
  transform: scaleX(0); transform-origin: right;
  transition: transform .45s var(--ease-out);
}
.contact-link:hover::after { transform: scaleX(1); transform-origin: left; }
.panel .panel-foot { font-size: .8rem; color: var(--faint); margin: 0; }

/* =============================================================
   7. Lightbox
   ============================================================= */
.lightbox {
  border: 0; padding: 0; margin: auto; max-width: 92vw; max-height: 92svh;
  background: transparent; color: var(--paper);
  overflow: visible;
}
.lightbox::backdrop { background: rgba(8, 7, 6, 0.94); backdrop-filter: blur(6px); }
.lightbox-figure { max-width: 92vw; max-height: 92svh; display: grid; }
.lightbox-figure img {
  max-width: 92vw; max-height: 80svh; width: auto; height: auto;
  object-fit: contain; border-radius: 6px; margin-inline: auto;
}
.lightbox-figure figcaption {
  text-align: center; margin-top: 1rem; padding-inline: 3.4rem;
  font-size: .92rem; color: rgba(243,237,226,.85);
}
.lightbox-figure figcaption:empty { display: none; }
.lightbox-close, .lightbox-nav {
  position: fixed; z-index: 2;
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: 50%;
  background: rgba(243,237,226,.1);
  color: var(--paper);
  font-size: 1.3rem;
  transition: background-color .3s var(--ease-out);
}
.lightbox-close:hover, .lightbox-nav:hover { background: rgba(243,237,226,.22); }
.lightbox-close { top: 1.4rem; right: 1.4rem; }
.lightbox-prev { left: 1.4rem; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 1.4rem; top: 50%; transform: translateY(-50%); }

/* =============================================================
   8. Responsive
   ============================================================= */
@media (max-width: 719px) {
  .nav { display: flex; justify-content: space-between; }
  .nav-link-home, .nav-ext { display: none; }
  .nav-links { gap: .6rem; }
  .hud { grid-template-columns: 1fr; padding-bottom: .6rem; }
  .hud-tag, .hud-count { display: none; }
  .filter-btn { font-size: .66rem; }
  .filter-bar { gap: 0 .9rem; }

  /* Visor: las flechas pasan abajo para no tapar la foto */
  .lightbox-figure img { max-height: 70svh; }
  .lightbox-figure figcaption { padding-inline: 0; }
  .lightbox-prev, .lightbox-next { top: auto; bottom: 1.2rem; transform: none; }
  .lightbox-prev { left: calc(50% - 56px); }
  .lightbox-next { right: calc(50% - 56px); }
}

/* Pantallas táctiles: zonas de toque de ~44 px (el texto no cambia de tamaño) */
@media (pointer: coarse) {
  .nav-link, .nav-ext { padding: .7rem .5rem; }
  .filter-btn { padding: .7rem .15rem; }
  .filter-btn::after { bottom: .45rem; }
  .lightbox-figure { touch-action: pan-y pinch-zoom; }
}

/* =============================================================
   9. Movimiento reducido
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  .stage-bg img, .panel[open] { transition: none; animation: none; }
  .is-canvas .gallery-trigger, .is-canvas .canvas { transition: none; }
}