/* =====================================================
   portfolio.css — Sección 3: Portafolio
   Multi-column background gallery (parallax vertical) + lista
   de proyectos en foreground. Sin categorías: 8 sitios web.
   ===================================================== */

.portfolio {
  position: relative;
  overflow: hidden; /* clipping perimetral del background */
  min-height: 100vh;
}

/* Fade superior desde bg-primary (transición desde services) */
.portfolio::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 140px;
  background: linear-gradient(
    to bottom,
    var(--bg-primary),
    transparent
  );
  pointer-events: none;
  z-index: 1;
}

/* Fade inferior para futuras secciones */
.portfolio::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 140px;
  background: linear-gradient(
    to top,
    var(--bg-primary),
    transparent
  );
  pointer-events: none;
  z-index: 1;
}

/* =====================================================
   WEBSITES-BG — Multi-column gallery con parallax
   - 4 columnas, cada una con 2 imágenes apiladas
   - Velocidades: +0.05, -0.04, +0.06, -0.05 (alternadas)
   - Mask radial: edges invisibles, centro más visible
   ===================================================== */

.websites-bg {
  position: absolute;
  inset: 0;
  display: flex;
  gap: var(--space-3);
  padding: 5vh var(--space-4);
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
  /* Mask radial: bordes transparentes (clipped), centro visible */
  -webkit-mask-image: radial-gradient(
    ellipse at center,
    black 30%,
    transparent 75%
  );
  mask-image: radial-gradient(
    ellipse at center,
    black 30%,
    transparent 75%
  );
}

.websites-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  will-change: transform;
  /* Loop unidireccional continuo. Cada columna tiene su --anim-duration
     (seteado por JS según data-speed). Contenido duplicado → al llegar
     a translateY(-50%) los duplicados están donde estaban los originales,
     creando loop seamless. */
  animation: var(--anim-name, ws-scroll-up) var(--anim-duration, 50s) linear infinite;
  will-change: transform;
}

.websites-col--up {
  --anim-name: ws-scroll-up;
}

.websites-col--down {
  --anim-name: ws-scroll-down;
}

@keyframes ws-scroll-up {
  from { transform: translateY(0); }
  to   { transform: translateY(-50%); }
}

@keyframes ws-scroll-down {
  from { transform: translateY(-50%); }
  to   { transform: translateY(0); }
}

/* Cuando el usuario hace hover en una card del foreground, JS
   cambia --anim-duration para acelerar el ciclo de esa columna. */

@media (prefers-reduced-motion: reduce) {
  .websites-col { animation: none !important; }
}

.wsite-img {
  display: block;
  width: 100%;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid rgba(73, 197, 182, 0.1);
  background: rgba(11, 15, 25, 0.6);
  flex-shrink: 0;
  transition:
    border-color var(--dur-base) var(--ease-smooth),
    transform var(--dur-base) var(--ease-smooth);
}

.wsite-img img {
  width: 100%;
  height: auto;
  display: block;
  opacity: 0.13; /* muy sutil */
  filter: saturate(0.7);
  transition:
    opacity var(--dur-base) var(--ease-smooth),
    filter var(--dur-base) var(--ease-smooth);
}

/* En hover (cuando el portfolio__link correspondiente está hover) */
.websites-bg.is-highlight .wsite-img {
  border-color: rgba(73, 197, 182, 0.25);
}

.websites-bg.is-highlight .wsite-img.is-active {
  border-color: var(--accent-border-strong);
  box-shadow: 0 0 24px rgba(73, 197, 182, 0.3);
}

.websites-bg.is-highlight .wsite-img.is-active img {
  opacity: 0.28;
  filter: saturate(1);
}

/* =====================================================
   FOREGROUND — Container con header + lista de proyectos
   ===================================================== */

.portfolio__container {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: var(--space-7);
}

/* ---------- Header ---------- */
.portfolio__header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  /* El estado inicial (opacity:0; filter:blur(12px); etc.) lo aplica
     la clase global `.reveal-soft` desde base.css. initReveal() (IO)
     la quita cuando entra al viewport. Sin lógica JS de offsets. */
}

.portfolio__kicker {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--accent-color);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: var(--space-4);
  padding: var(--space-1) var(--space-3);
  background: rgba(73, 197, 182, 0.06);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-pill);
}

.portfolio__title {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.01em;
  margin-bottom: var(--space-4);
  color: var(--text-main);
  text-wrap: balance;
}

.portfolio__title-accent {
  display: block;
  color: var(--accent-color);
  font-weight: 900;
  letter-spacing: 0.02em;
  text-shadow: 0 0 24px var(--accent-glow);
}

.portfolio__subtitle {
  font-size: var(--fs-body);
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 56ch;
  margin: 0 auto;
}

/* ---------- Lista de proyectos (Masonry layout) ---------- */
/*
 * Layout Masonry via CSS columns:
 * - Items fluyen de arriba hacia abajo dentro de cada columna
 * - Items de diferente tamaño se acomodan sin gaps
 * - Variedad de alturas viene de:
 *   1. Algunas cards tienen preview, otras no
 *   2. Distintos aspect-ratios en los previews (--short, --tall)
 *   3. Distintas longitudes de descripción
 *   4. Algunas cards tienen tags, otras no
 */
.portfolio__list {
  list-style: none;
  margin: 0;
  padding: 0;
  column-count: 1;
  column-gap: var(--space-4);
  max-width: 1100px;
  margin-inline: auto;
  width: 100%;
}

@media (min-width: 640px) {
  .portfolio__list {
    column-count: 2;
  }
}

@media (min-width: 1100px) {
  .portfolio__list {
    column-count: 3;
  }
}

.portfolio__item {
  margin: 0 0 var(--space-4);
  display: block;
  break-inside: avoid; /* evita que se corte entre columnas */
  page-break-inside: avoid;
  /* Estado inicial: controlado por IntersectionObserver de initReveal().
     Al añadir `.is-visible` (cuando entra al viewport), la transition
     CSS anima fade-in + slide-up. Toggle bidireccional → soporte
     scroll inverso. */
  opacity: 0;
  transform: translateY(30px);
  transition:
    opacity 600ms var(--ease-out-expo),
    transform 600ms var(--ease-out-expo);
  will-change: opacity, transform;
}

/* Stagger por nth-child */
.portfolio__item:nth-child(1) { transition-delay: 0ms; }
.portfolio__item:nth-child(2) { transition-delay: 80ms; }
.portfolio__item:nth-child(3) { transition-delay: 160ms; }
.portfolio__item:nth-child(4) { transition-delay: 240ms; }
.portfolio__item:nth-child(5) { transition-delay: 320ms; }
.portfolio__item:nth-child(6) { transition-delay: 400ms; }
.portfolio__item:nth-child(7) { transition-delay: 480ms; }
.portfolio__item:nth-child(8) { transition-delay: 560ms; }

.portfolio__item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.portfolio__link {
  display: block;
  text-decoration: none;
  color: inherit;
  background: rgba(11, 15, 25, 0.65);
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition:
    background var(--dur-base) var(--ease-smooth),
    border-color var(--dur-base) var(--ease-smooth),
    transform var(--dur-base) var(--ease-smooth);
}

.portfolio__link:hover,
.portfolio__link:focus-visible {
  background: rgba(17, 24, 39, 0.8);
  border-color: var(--accent-color);
  transform: translateY(-2px);
  color: var(--text-main);
}

/* Preview de la card (opcional, depende del item) */
.portfolio__preview {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: rgba(11, 15, 25, 0.5);
  border-bottom: 1px solid var(--accent-border);
}

.portfolio__preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  display: block;
  filter: grayscale(1);
  transition:
    transform 600ms var(--ease-out-expo),
    filter var(--dur-base) var(--ease-smooth);
}

.portfolio__link:hover .portfolio__preview img,
.portfolio__link:focus-visible .portfolio__preview img {
  transform: scale(1.04);
  filter: grayscale(0);
}

/* Variantes de aspect-ratio para el preview → crean alturas distintas */
.portfolio__preview--short {
  aspect-ratio: 16 / 6; /* más bajo → card menos alta */
}

.portfolio__preview--tall {
  aspect-ratio: 4 / 5; /* más cuadrado → card más alta */
}

/* Info de la card */
.portfolio__info {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.portfolio__info-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-1);
}

.portfolio__link-num {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--accent-color);
  letter-spacing: 0.1em;
  opacity: 0.7;
}

.portfolio__link-name {
  font-family: var(--font-display);
  font-size: clamp(1rem, 0.5vw + 0.95rem, 1.15rem);
  font-weight: 700;
  letter-spacing: 0.005em;
  color: var(--text-main);
  line-height: 1.2;
}

.portfolio__link-desc {
  font-size: var(--fs-small);
  color: var(--text-muted);
  line-height: 1.55;
  margin-top: var(--space-1);
}

.portfolio__link-url {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  color: var(--text-dim);
  letter-spacing: 0.04em;
  margin-top: var(--space-2);
  /* URLs largas (ej. "barbozainvestmentgroup.com") no se cortan
     porque el navegador las trata como una sola "palabra".
     `overflow-wrap: anywhere` permite romper dentro del string
     sin dejar gaps al final cuando sobra espacio. */
  overflow-wrap: anywhere;
  word-break: break-word;
}

.portfolio__link-tags {
  list-style: none;
  margin: var(--space-3) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.portfolio__link-tags li {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--accent-color);
  padding: 2px var(--space-2);
  background: rgba(73, 197, 182, 0.08);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-sm);
  letter-spacing: 0.05em;
}

.portfolio__link-arrow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--accent-color);
  border: 1px solid var(--accent-border);
  border-radius: 50%;
  transition:
    transform var(--dur-base) var(--ease-out-expo),
    background var(--dur-base) var(--ease-smooth),
    color var(--dur-base) var(--ease-smooth);
}

.portfolio__link:hover .portfolio__link-arrow {
  background: var(--accent-color);
  color: var(--bg-primary);
  transform: translate(2px, -2px);
}

/* =====================================================
   prefers-reduced-motion
   ===================================================== */
@media (prefers-reduced-motion: reduce) {
  .websites-col,
  .wsite-img img { transform: none !important; }
  .websites-bg { mask-image: none; -webkit-mask-image: none; }
}