/* ── RESET ── */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    :root {
      --bg:          #0a0a0a;
      --bg-card:     #0f0f0f;
      --text:        #e0e0e0;
      --text-muted:  #747272;
      --text-dim:    #ceacac;
      --accent:      #8b0000;
      --accent-glow: rgba(139,0,0,.18);
      --violet:      rgba(120,40,180,.12);
      --border:      rgba(255,255,255,.06);
      --border-mid:  rgba(255,255,255,.10);
      --font-title:  'Bebas Neue', sans-serif;
      --font-body:   'JetBrains Mono', monospace;
      --font-serif:  'Cormorant Garamond', serif;
      --gap:         clamp(1.5rem, 3vw, 2.8rem);
    }

    html { scroll-behavior: smooth; }

    body {
      background: var(--bg);
      color: var(--text);
      font-family: var(--font-body);
      font-size: clamp(11px, 1.3vw, 13px);
      line-height: 1.7;
      min-height: 100vh;
      overflow-x: hidden;
    }

    /* grain overlay */
    body::before {
      content: '';
      position: fixed; inset: 0;
      background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='300' height='300'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='300' height='300' filter='url(%23n)' opacity='0.035'/%3E%3C/svg%3E");
      pointer-events: none; z-index: 9998; opacity: .6;
    }

    ::-webkit-scrollbar { width: 4px; }
    ::-webkit-scrollbar-track { background: var(--bg); }
    ::-webkit-scrollbar-thumb { background: var(--text-dim); border-radius: 2px; }

    .wrapper {
      max-width: 1260px;
      margin: 0 auto;
      padding: 0 clamp(1.5rem, 5vw, 6rem);
    }

    /* ────────────────────────────
       HEADER
    ──────────────────────────── */
    header {
      padding: clamp(3rem, 7vw, 7rem) 0 clamp(2rem, 4vw, 4rem);
      position: relative;
    }

    header::before {
      content: '';
      display: block;
      width: 100%;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--accent), transparent);
      margin-bottom: clamp(2rem, 4vw, 4rem);
      opacity: .5;
    }

    /* 3 columnas: nombre | foto | datos */
    .header-inner {
      display: grid;
      grid-template-columns: 1fr auto auto;
      align-items: center;
      gap: clamp(1.5rem, 3vw, 3rem);
    }

    /* NOMBRE */
    .site-title {
      font-family: var(--font-title);
      font-size: clamp(3.8rem, 10vw, 9rem);
      letter-spacing: .06em;
      line-height: .92;
      color: var(--text);
      text-transform: uppercase;
    }

    .site-title span {
      display: block;
      color: transparent;
      -webkit-text-stroke: 1px rgba(224,224,224,.22);
      font-size: clamp(1.4rem, 3.5vw, 3rem);
      letter-spacing: .35em;
      margin-bottom: .4rem;
    }

    .page-tag {
      display: inline-block;
      font-family: var(--font-body);
      font-size: .68rem;
      letter-spacing: .22em;
      color: var(--accent);
      border: 1px solid var(--accent);
      padding: .25rem .7rem;
      text-transform: uppercase;
      margin-top: 1.2rem;
      opacity: .85;
    }

    /* ────────────────────────────
       FOTO DE PERFIL
    ──────────────────────────── */
    .profile-photo {
      width: clamp(110px, 12vw, 170px);
      aspect-ratio: 3/4;
      position: relative;
      flex-shrink: 0;
    }
/* ─── EFECTO INTERACTIVO PARA VOLVER ATRÁS ─── */
.portfolio-avatar-link {
  display: block;
  width: 100%;
  height: 100%;
  position: relative;
  text-decoration: none;
  cursor: pointer;
}

/* Forzamos a la imagen a transicionar sus filtros */
.portfolio-avatar-link img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: filter 0.3s ease;
  display: block;
}

/* Capa oscura con desenfoque */
.portfolio-avatar-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6); /* Cortina negra semitransparente */
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0; /* Oculta por defecto */
  transition: opacity 0.3s ease;
}

/* Estilo del texto que combina con JetBrains Mono */
.portfolio-avatar-overlay span {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  color: var(--text);
  font-weight: 500;
}

/* ── ACCIONES HOVER ── */

/* Al pasar el mouse, aplicamos el blur y oscurecemos la foto */
.portfolio-avatar-link:hover img {
  filter: blur(3px) brightness(0.6) grayscale(25%) contrast(1.05);
}

/* Mostramos el texto de volver */
.portfolio-avatar-link:hover .portfolio-avatar-overlay {
  opacity: 1;
}
    /* una vez que agregues la imagen real */
    .profile-photo img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      filter: grayscale(25%) contrast(1.05);
      border: 1px solid var(--border-mid);
      transition: filter .5s, box-shadow .4s;
    }

    .profile-photo:hover img {
      filter: grayscale(0%) contrast(1.1);
      box-shadow: 0 0 30px var(--accent-glow);
    }

    /* placeholder mientras no hay foto */
    .photo-placeholder {
      width: 100%;
      height: 100%;
      border: 1px dashed rgba(255,255,255,.13);
      background: rgba(255,255,255,.018);
      display: flex;
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: .8rem;
      position: relative;
    }

    .photo-placeholder::before,
    .photo-placeholder::after {
      content: '';
      position: absolute;
      width: 10px; height: 10px;
      border-color: var(--text-dim);
      border-style: solid;
    }
    .photo-placeholder::before { top: -1px; left: -1px; border-width: 1px 0 0 1px; }
    .photo-placeholder::after  { bottom: -1px; right: -1px; border-width: 0 1px 1px 0; }

    .photo-placeholder svg { opacity: .2; }

    .photo-placeholder p {
      font-size: .52rem;
      letter-spacing: .22em;
      color: var(--text-dim);
      text-transform: uppercase;
      text-align: center;
      line-height: 2;
    }

    /* ── DATOS ACADÉMICOS ── */
    .bio {
      text-align: right;
      min-width: 210px;
    }

    .bio-line {
      font-size: .7rem;
      letter-spacing: .12em;
      color: var(--text-muted);
      text-transform: uppercase;
      line-height: 2;
    }

    .bio-line strong {
      color: rgba(224,224,224,.5);
      font-weight: 400;
    }

    .ig-link {
      display: inline-flex;
      align-items: center;
      justify-content: flex-end;
      gap: .5rem;
      margin-top: 1.4rem;
      font-size: .7rem;
      letter-spacing: .16em;
      color: var(--text-muted);
      text-decoration: none;
      text-transform: uppercase;
      transition: color .3s;
      border-bottom: 1px solid transparent;
    }

    .ig-link:hover { color: var(--text); border-color: rgba(224,224,224,.18); }
    .ig-link svg { opacity: .55; flex-shrink: 0; }
    .ig-link:hover svg { opacity: 1; }

    .header-rule {
      width: 100%; height: 1px;
      background: var(--border);
      margin: clamp(2rem, 4vw, 4rem) 0;
    }

    .intro-copy {
      font-family: var(--font-serif);
      font-style: italic;
      font-size: clamp(.85rem, 1.5vw, 1.05rem);
      color: var(--text-muted);
      letter-spacing: .05em;
      max-width: 520px;
    }

    /* ────────────────────────────
       GALLERY
    ──────────────────────────── */
    .gallery-section {
      padding: clamp(2rem, 5vw, 5rem) 0 clamp(4rem, 8vw, 8rem);
    }

    .section-label {
      font-size: .62rem;
      letter-spacing: .3em;
      color: var(--text-dim);
      text-transform: uppercase;
      margin-bottom: 3.5rem;
      display: flex;
      align-items: center;
      gap: 1.2rem;
    }

    .section-label::after {
      content: ''; flex: 1;
      height: 1px; background: var(--border);
    }

    .gallery-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: var(--gap);
    }

    .project-card {
      cursor: pointer;
      position: relative;
      background: var(--bg-card);
      border: 1px solid var(--border);
      overflow: hidden;
      transition: border-color .4s, box-shadow .4s, transform .4s;
      aspect-ratio: 4/5;
    }

    .project-card:hover {
      border-color: var(--border-mid);
      box-shadow: 0 0 40px var(--accent-glow), 0 0 80px var(--violet);
      transform: translateY(-3px);
    }

    .project-card img {
      width: 100%; height: 100%;
      object-fit: cover; display: block;
      filter: grayscale(20%) contrast(1.05);
      transition: filter .5s, transform .6s;
    }

    .project-card:hover img {
      filter: grayscale(0%) contrast(1.1);
      transform: scale(1.035);
    }

    .card-overlay {
      position: absolute; inset: 0;
      background: linear-gradient(to top, rgba(10,10,10,.85) 0%, transparent 55%);
      opacity: 0;
      transition: opacity .4s;
      display: flex; flex-direction: column;
      justify-content: flex-end;
      padding: 1.4rem;
    }

    .project-card:hover .card-overlay { opacity: 1; }

    .card-num {
      font-size: .6rem; letter-spacing: .3em;
      color: var(--accent); margin-bottom: .3rem;
    }

    .card-title {
      font-family: var(--font-title);
      font-size: clamp(1rem, 2.2vw, 1.6rem);
      letter-spacing: .08em; color: var(--text); line-height: 1;
    }

    .card-view-hint {
      font-size: .58rem; letter-spacing: .2em;
      color: var(--text-muted); text-transform: uppercase; margin-top: .6rem;
    }

    /* ── PLACEHOLDERS ── */
    .placeholder-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: var(--gap); margin-top: var(--gap);
    }

    .placeholder-grid-2 {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: var(--gap); margin-top: var(--gap);
    }

    .placeholder-card {
      aspect-ratio: 4/5;
      border: 1px solid var(--border-mid);
      background: transparent;
      position: relative; overflow: hidden;
    }

    .placeholder-card::before,
    .placeholder-card::after {
      content: '';
      position: absolute;
      width: 12px; height: 12px;
      border-color: var(--text-dim); border-style: solid;
    }
    .placeholder-card::before { top: -1px; left: -1px; border-width: 1px 0 0 1px; }
    .placeholder-card::after  { bottom: -1px; right: -1px; border-width: 0 1px 1px 0; }

    .placeholder-inner {
      position: absolute; inset: 0;
      display: flex; flex-direction: column;
      align-items: center; justify-content: center;
      gap: .8rem; opacity: .18;
    }

    .placeholder-inner .ph-icon {
      width: 28px; height: 28px;
      border: 1px solid var(--text);
      display: flex; align-items: center; justify-content: center;
    }

    .placeholder-inner .ph-icon svg { width: 14px; height: 14px; }

    .placeholder-inner span {
      font-size: .55rem; letter-spacing: .3em;
      color: var(--text); text-transform: uppercase;
    }

    /* ────────────────────────────
       LIGHTBOX
    ──────────────────────────── */
    #lightbox {
      display: none;
      position: fixed; inset: 0; z-index: 9999;
      background: rgba(5,5,5,.94);
      backdrop-filter: blur(8px);
      align-items: center; justify-content: center;
      padding: 2rem;
    }

    #lightbox.active { display: flex; }

    .lb-inner {
      position: relative;
      max-width: min(90vw, 1000px);
      max-height: 90vh;
      animation: lbIn .35s cubic-bezier(.22,1,.36,1);
    }

    @keyframes lbIn {
      from { opacity: 0; transform: scale(.93) translateY(16px); }
      to   { opacity: 1; transform: scale(1) translateY(0); }
    }

    .lb-inner img {
      max-width: 100%; max-height: 85vh; display: block;
      border: 1px solid var(--border-mid); object-fit: contain;
    }

    .lb-close {
      position: absolute; top: -2.2rem; right: 0;
      background: none; border: none; cursor: pointer;
      font-family: var(--font-body); font-size: .65rem;
      letter-spacing: .25em; color: var(--text-muted);
      text-transform: uppercase; padding: .3rem .5rem;
      transition: color .25s;
      display: flex; align-items: center; gap: .5rem;
    }

    .lb-close::before {
      content: ''; display: inline-block;
      width: 16px; height: 1px; background: currentColor;
    }

    .lb-close:hover { color: var(--text); }

    .lb-caption {
      margin-top: .9rem; font-size: .62rem;
      letter-spacing: .2em; color: var(--text-dim); text-transform: uppercase;
    }

    .lb-nav {
      position: absolute; top: 50%; transform: translateY(-50%);
      background: none; border: 1px solid var(--border);
      color: var(--text-muted); width: 36px; height: 36px;
      cursor: pointer; font-size: 1rem;
      display: flex; align-items: center; justify-content: center;
      transition: border-color .25s, color .25s;
    }

    .lb-nav:hover { border-color: var(--border-mid); color: var(--text); }
    .lb-nav.prev { left: -52px; }
    .lb-nav.next { right: -52px; }

    /* ────────────────────────────
       FOOTER
    ──────────────────────────── */
    footer {
      border-top: 1px solid var(--border);
      padding: 2.5rem 0; opacity: .28;
    }

    .footer-inner {
      display: flex; justify-content: space-between;
      align-items: center; gap: 1rem; flex-wrap: wrap;
    }

    .footer-inner span, .footer-inner a {
      font-size: .58rem; letter-spacing: .2em;
      color: var(--text-muted); text-transform: uppercase; text-decoration: none;
    }

    /* ────────────────────────────
       RESPONSIVE
    ──────────────────────────── */
    @media (max-width: 1000px) {
      .header-inner {
        grid-template-columns: 1fr auto;
        grid-template-rows: auto auto;
      }
      .header-name   { grid-column: 1; grid-row: 1; }
      .profile-photo { grid-column: 2; grid-row: 1 / 3; align-self: start; width: clamp(100px, 16vw, 150px); }
      .bio           { grid-column: 1; grid-row: 2; text-align: left; }
      .ig-link       { justify-content: flex-start; }
    }

    @media (max-width: 700px) {
      .header-inner  { grid-template-columns: 1fr; }
      .profile-photo { grid-column: 1; grid-row: auto; width: clamp(90px, 28vw, 130px); }
      .bio           { text-align: left; }
      .ig-link       { justify-content: flex-start; }
      .gallery-grid,
      .placeholder-grid { grid-template-columns: 1fr 1fr; gap: 1.2rem; }
      .placeholder-grid-2 { grid-template-columns: 1fr; }
      .lb-nav.prev { left: -44px; }
      .lb-nav.next { right: -44px; }
    }

    @media (max-width: 440px) {
      .gallery-grid,
      .placeholder-grid,
      .placeholder-grid-2 { grid-template-columns: 1fr; }
      .lb-nav { display: none; }
    }

    /* ── ANIMACIONES ── */
    .fade-in {
      opacity: 0; transform: translateY(18px);
      animation: fadeUp .7s cubic-bezier(.22,1,.36,1) forwards;
    }

    @keyframes fadeUp { to { opacity: 1; transform: translateY(0); } }

    .delay-1 { animation-delay: .1s; }
    .delay-2 { animation-delay: .22s; }
    .delay-3 { animation-delay: .34s; }
    .delay-4 { animation-delay: .46s; }
    .delay-5 { animation-delay: .58s; }
    .delay-6 { animation-delay: .70s; }