/* BBM Renders — estética de plano técnico: papel claro con retícula, tinta azul noche, marcador rojo */
:root {
  --paper: #f3f4f1;
  --paper-2: #e8eae5;
  --card: #fbfbf9;
  --ink: #16202e;
  --ink-2: #4a5566;
  --rule: #c9cec6;
  --grid: rgba(22, 32, 46, 0.055);
  --accent: #d2322d;
  --accent-ink: #ffffff;
  --navy: #1d3a63;
  --shadow: 0 1px 0 rgba(22, 32, 46, 0.06), 0 10px 30px -18px rgba(22, 32, 46, 0.35);
  --f-display: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --f-body: "Archivo", "Helvetica Neue", Arial, sans-serif;
  --f-mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;
  --radius: 4px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #10151d; --paper-2: #161d27; --card: #18202b; --ink: #e9edf2; --ink-2: #a3adbb;
    --rule: #2b3544; --grid: rgba(200, 215, 235, 0.05); --accent: #ef4a43; --navy: #8fb4ea;
    --shadow: 0 1px 0 rgba(0, 0, 0, 0.3), 0 14px 34px -20px rgba(0, 0, 0, 0.8); color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #10151d; --paper-2: #161d27; --card: #18202b; --ink: #e9edf2; --ink-2: #a3adbb;
  --rule: #2b3544; --grid: rgba(200, 215, 235, 0.05); --accent: #ef4a43; --navy: #8fb4ea;
  --shadow: 0 1px 0 rgba(0, 0, 0, 0.3), 0 14px 34px -20px rgba(0, 0, 0, 0.8); color-scheme: dark;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--paper); color: var(--ink); font-family: var(--f-body); font-size: 16px; line-height: 1.55;
  background-image: linear-gradient(var(--grid) 1px, transparent 1px), linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 24px 24px;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
.wrap { width: 100%; max-width: 1240px; margin: 0 auto; padding-inline: clamp(16px, 4vw, 40px); }

/* Encabezado */
.top { border-bottom: 1px solid var(--rule); background: color-mix(in srgb, var(--paper) 88%, transparent); backdrop-filter: blur(6px); position: sticky; top: 0; z-index: 10; }
.top .wrap { display: flex; align-items: center; gap: 16px; padding-block: 14px; flex-wrap: wrap; }
.mark { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.mark b { font-family: var(--f-display); font-weight: 800; font-size: 1.15rem; letter-spacing: -0.01em; }
.mark span { font-family: var(--f-mono); font-size: 0.72rem; color: var(--ink-2); letter-spacing: 0.08em; text-transform: uppercase; border-left: 1px solid var(--rule); padding-left: 10px; }
.mark i { width: 14px; height: 14px; background: var(--accent); display: block; border-radius: 1px; }
.top nav { margin-left: auto; display: flex; gap: 18px; font-size: 0.9rem; }
.top nav a { text-decoration: none; color: var(--ink-2); }
.top nav a:hover, .top nav a[aria-current="page"] { color: var(--ink); }

/* Portada */
.intro { padding-block: clamp(36px, 7vw, 76px) clamp(20px, 4vw, 36px); display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); gap: 32px; align-items: end; }
.eyebrow { font-family: var(--f-mono); font-size: 0.75rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin: 0 0 12px; }
h1 { font-family: var(--f-display); font-weight: 800; font-size: clamp(2.2rem, 5.6vw, 4.2rem); line-height: 0.98; letter-spacing: -0.025em; margin: 0; text-wrap: balance; font-stretch: 112%; }
.intro p.lead { color: var(--ink-2); max-width: 46ch; margin: 0; font-size: 1.02rem; }
.stats { display: flex; gap: 28px; flex-wrap: wrap; font-family: var(--f-mono); font-size: 0.78rem; color: var(--ink-2); border-top: 1px solid var(--rule); padding-top: 14px; margin-top: 22px; }
.stats strong { display: block; font-family: var(--f-display); font-size: 1.6rem; color: var(--ink); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }

/* Filtros */
.filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; padding-block: 8px 22px; }
.filters label { font-family: var(--f-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-2); margin-right: 6px; }
.chip { font: 600 0.85rem var(--f-body); border: 1px solid var(--rule); background: var(--card); color: var(--ink); border-radius: 999px; padding: 6px 14px; cursor: pointer; }
.chip[aria-pressed="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.chip:focus-visible, .btn:focus-visible, .card a:focus-visible, .thumbs button:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.search { margin-left: auto; min-width: 0; flex: 0 1 260px; }
.search input { width: 100%; font: 0.9rem var(--f-body); padding: 8px 12px; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--card); color: var(--ink); }

/* Tarjetas de proyecto */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr)); gap: 22px; padding-bottom: 64px; }
.card { background: var(--card); border: 1px solid var(--rule); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; box-shadow: var(--shadow); }
.card a.cover { position: relative; display: block; aspect-ratio: 16 / 9; background: var(--paper-2); overflow: hidden; }
.card a.cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.card:hover a.cover img { transform: scale(1.03); }
.tag3d { position: absolute; top: 10px; left: 10px; font: 600 0.7rem var(--f-mono); letter-spacing: 0.08em; background: var(--accent); color: var(--accent-ink); padding: 4px 8px; border-radius: 2px; }
.card .body { padding: 16px 18px 18px; display: grid; gap: 10px; flex: 1; }
.card .client { font-family: var(--f-mono); font-size: 0.72rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-2); }
.card h2 { font-family: var(--f-display); font-weight: 700; font-size: 1.3rem; line-height: 1.15; margin: 0; letter-spacing: -0.01em; text-wrap: balance; }
.card h2 a { text-decoration: none; }
.dims { font-family: var(--f-mono); font-size: 0.8rem; color: var(--ink); display: flex; flex-wrap: wrap; gap: 6px 14px; font-variant-numeric: tabular-nums; }
.dims span::before { content: "▸ "; color: var(--accent); }
.card .foot { display: flex; gap: 8px; margin-top: auto; padding-top: 6px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 6px; font: 600 0.85rem var(--f-body); text-decoration: none; border-radius: var(--radius); padding: 8px 13px; border: 1px solid var(--ink); color: var(--ink); background: transparent; cursor: pointer; }
.btn.primary { background: var(--ink); color: var(--paper); }
.btn.red { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.empty { border: 1px dashed var(--rule); border-radius: var(--radius); padding: 28px; color: var(--ink-2); text-align: center; grid-column: 1 / -1; }

/* Página de proyecto */
.crumbs { font-family: var(--f-mono); font-size: 0.75rem; color: var(--ink-2); padding-top: 22px; }
.crumbs a { color: var(--ink-2); }
.p-head { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px 32px; align-items: end; padding-block: 14px 22px; }
.p-head h1 { font-size: clamp(1.9rem, 4.4vw, 3.2rem); }
.p-head .actions { display: flex; gap: 10px; flex-wrap: wrap; }
.sheet { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); border: 1px solid var(--rule); border-radius: var(--radius); background: var(--card); margin-bottom: 22px; }
.sheet div { padding: 12px 14px; border-right: 1px solid var(--rule); min-width: 0; }
.sheet div:last-child { border-right: 0; }
.sheet dt { font-family: var(--f-mono); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-2); }
.sheet dd { margin: 4px 0 0; font-weight: 600; font-variant-numeric: tabular-nums; }
.viewer { position: relative; background: #0d1117; border-radius: var(--radius); overflow: hidden; border: 1px solid var(--rule); }
.viewer img { width: 100%; aspect-ratio: 16 / 9; object-fit: contain; background: #0d1117; }
.viewer .cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 26px 16px 12px; color: #eef2f7; background: linear-gradient(0deg, rgba(0,0,0,.72), transparent); font-size: 0.92rem; }
.viewer .cap b { font-family: var(--f-display); }
.viewer .nav { position: absolute; top: 50%; transform: translateY(-50%); width: 42px; height: 42px; border-radius: 50%; border: 0; background: rgba(13,17,23,.6); color: #fff; font-size: 1.3rem; cursor: pointer; }
.viewer .nav.prev { left: 12px; } .viewer .nav.next { right: 12px; }
.thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); gap: 10px; padding-block: 14px 40px; }
.thumbs button { display: flex; flex-direction: column; justify-content: flex-start; align-self: start; padding: 0; border: 2px solid transparent; border-radius: var(--radius); background: none; cursor: pointer; text-align: left; color: var(--ink-2); font: 0.75rem var(--f-body); }
.thumbs button img { aspect-ratio: 16 / 9; object-fit: cover; border-radius: 2px; width: 100%; }
.thumbs button span { display: block; padding: 4px 2px 0; }
.thumbs button[aria-current="true"] { border-color: var(--accent); color: var(--ink); }
.foot-site { border-top: 1px solid var(--rule); padding-block: 22px; font-size: 0.82rem; color: var(--ink-2); font-family: var(--f-mono); }
@media (max-width: 760px) {
  .intro, .p-head { grid-template-columns: 1fr; }
  .search { flex-basis: 100%; margin-left: 0; }
  .sheet div { border-right: 0; border-bottom: 1px solid var(--rule); }
}
@media (prefers-reduced-motion: reduce) { .card a.cover img { transition: none; } }