/* ============================================================
   CASE STUDY / PROJECT DETAIL — Atacama Editorial
   ============================================================ */
.case-hero { position: relative; padding-top: 120px; padding-bottom: 3rem; }
.case-back { display: inline-flex; align-items: center; gap: 0.5rem; font-family: var(--f-mono); font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--on-light-mut); text-decoration: none; margin-bottom: 2rem; transition: gap 0.3s var(--spring), color 0.2s; }
.case-back:hover { gap: 0.9rem; color: var(--accent-dk); }
.case-meta { display: flex; flex-wrap: wrap; gap: 0.8rem 1.2rem; align-items: center; font-family: var(--f-mono); font-size: 0.68rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent-dk); margin-bottom: 1.2rem; }
.case-title { font-size: clamp(2.6rem, 7vw, 5.5rem); line-height: 0.92; letter-spacing: -0.045em; margin-bottom: 1rem; text-wrap: balance; }
.case-title em { color: var(--accent-dk); }
.case-tagline { font-size: clamp(1.1rem, 2vw, 1.5rem); line-height: 1.5; color: var(--on-light-mut); font-weight: 300; max-width: 52ch; margin-bottom: 1.8rem; }
.case-links { display: flex; flex-wrap: wrap; gap: 1rem; }

.case-cover { width: 100%; aspect-ratio: 16/8; object-fit: cover; border-radius: var(--r-lg); border: 1px solid var(--hairline); margin: 1.5rem 0 0; box-shadow: var(--sh-lg); }
.case-cover-ph { width: 100%; aspect-ratio: 16/8; border-radius: var(--r-lg); border: 1px solid var(--hairline); display: grid; place-items: center; position: relative; overflow: hidden; box-shadow: var(--sh-lg); margin-top: 1.5rem; }

.case-stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: var(--gutter); border-block: 1px solid var(--hairline); padding-block: 2.2rem; margin-block: 0; }
.case-stat .n { font-family: var(--f-display); font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.04em; line-height: 1; }
.case-stat .n s { font-style: italic; color: var(--accent-dk); font-size: 0.55em; text-decoration: none; }
.case-stat .l { font-family: var(--f-mono); font-size: 0.64rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--on-light-mut); margin-top: 0.5rem; display: block; }

.case-body { display: grid; grid-template-columns: repeat(12, 1fr); column-gap: var(--gutter); }
.case-block { grid-column: 3 / span 8; margin-bottom: 3.5rem; }
.case-block .lbl { font-family: var(--f-mono); font-size: 0.68rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--accent-dk); display: block; margin-bottom: 1rem; padding-top: 1.2rem; border-top: 1px solid var(--hairline-strong); }
.case-block h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); letter-spacing: -0.03em; margin-bottom: 1rem; }
.case-block p { font-size: 1.08rem; line-height: 1.75; color: var(--on-light-mut); margin-bottom: 1rem; text-wrap: pretty; }
.case-block ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.7rem; }
.case-block ul li { display: flex; gap: 0.7rem; font-size: 1.04rem; line-height: 1.5; }
.case-block ul li svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--accent-dk); margin-top: 3px; }
@media (max-width: 900px) { .case-block { grid-column: 1 / -1; } }

.case-shots { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
.case-shot img, .case-shot .ph { width: 100%; border-radius: var(--r-md); border: 1px solid var(--hairline); box-shadow: var(--sh-md); }
.case-shot figcaption { font-family: var(--f-mono); font-size: 0.66rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--on-light-mut); margin-top: 0.7rem; }

.case-techs { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.case-tech { font-family: var(--f-mono); font-size: 0.74rem; padding: 0.45rem 0.95rem; border: 1px solid var(--hairline); border-radius: 100px; color: var(--on-light-mut); display: inline-flex; align-items: center; gap: 0.4rem; }
.case-tech i { color: var(--accent-dk); }

/* ── Diagramas del proyecto (ProjectDiagram SVG) ───────────────────────────── */
.case-diagrams { display: grid; gap: 1.8rem; }
.case-diagram { border: 1px solid var(--hairline); border-radius: var(--r-lg); background: var(--card-bg, #fff); box-shadow: var(--sh-md); overflow: hidden; }
.cd-head { display: flex; align-items: center; gap: 0.55rem; padding: 0.8rem 1.1rem; border-bottom: 1px solid var(--hairline); font-family: var(--f-mono); font-size: 0.66rem; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent-dk); }
.cd-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent); flex-shrink: 0; }
/* Lienzo claro FIJO: los SVG tienen texto oscuro y deben leerse también en dark mode */
.cd-canvas { padding: 1.1rem; background: #fbf8f3; }
.cd-canvas img { width: 100%; height: auto; display: block; border-radius: var(--r-sm); }
.case-diagram figcaption { padding: 0.9rem 1.1rem 1.1rem; font-size: 0.94rem; line-height: 1.55; color: var(--on-light-mut); border-top: 1px solid var(--hairline); }

/* Prosa renderizada por render_md dentro de un case-block */
.case-prose h4 { margin: 1.6rem 0 0.5rem; }
.case-prose h5 { margin: 1.1rem 0 0.35rem; }
.case-prose ul { margin: 0.5rem 0 0.9rem; }
.case-prose hr { border: none; border-top: 1px solid var(--hairline); margin: 1.2rem 0; }
.case-prose > h4:first-child { margin-top: 0; }

/* ============================================================
   LIGHTBOX — ampliar diagramas / capturas al click (case-lightbox.js)
   ============================================================ */
/* Disparadores: cursor + badge "ampliar" al hover */
.cd-canvas, .case-shot { position: relative; }
.cd-canvas img.is-zoomable, .case-shot img.is-zoomable { cursor: zoom-in; }
.cd-canvas::after, .case-shot::after {
    content: ""; position: absolute; top: 12px; right: 12px; width: 32px; height: 32px;
    border-radius: 9px; z-index: 2; pointer-events: none; opacity: 0; transform: scale(.82);
    background: rgba(20,16,12,.62) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23fff' stroke-width='2.1' stroke-linecap='round' stroke-linejoin='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M21 21l-4.3-4.3M11 8v6M8 11h6'/%3E%3C/svg%3E") center / 18px no-repeat;
    box-shadow: 0 4px 14px -4px rgba(0,0,0,.5);
    transition: opacity .22s var(--ease), transform .22s var(--spring);
}
.cd-canvas:hover::after, .case-shot:hover::after { opacity: 1; transform: scale(1); }
.is-zoomable:focus-visible { outline: 2px solid var(--accent-dk); outline-offset: 3px; }
@media (hover: none) { .cd-canvas::after, .case-shot::after { opacity: .9; transform: none; } }

/* Overlay (z-index 10000: por encima del grano global body::before, que es 9998) */
.lb-overlay { position: fixed; inset: 0; z-index: 10000; display: grid; }
body.lb-lock::before { display: none; }   /* apaga el grano de papel mientras el modal está abierto */
.lb-sr { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.lb-overlay[hidden] { display: none; }
.lb-overlay::before { content: ""; position: absolute; inset: 0; background: rgba(12,9,6,.88); -webkit-backdrop-filter: blur(7px); backdrop-filter: blur(7px); }
@supports not (backdrop-filter: blur(2px)) { .lb-overlay::before { background: rgba(12,9,6,.95); } }

.lb-stage { position: relative; z-index: 1; width: 100%; height: 100%; overflow: hidden; display: grid; place-items: center; touch-action: none; cursor: grab; }
.lb-stage[data-zoomed="1"]:active { cursor: grabbing; }
/* max-height deja despejado el botón Cerrar (arriba) y la barra de zoom (abajo) */
.lb-img { max-width: 92vw; max-height: 78vh; max-height: calc(100svh - 200px); width: auto; height: auto; display: block; will-change: transform; user-select: none; -webkit-user-drag: none; box-shadow: 0 30px 90px -24px rgba(0,0,0,.7); }
.lb-overlay[data-kind="diagram"] .lb-img { background: #fbf8f3; padding: 16px; border-radius: 12px; }

.lb-close { position: absolute; top: 16px; right: 16px; z-index: 3; width: 46px; height: 46px; display: grid; place-items: center; border-radius: 13px; border: 1px solid rgba(255,255,255,.18); background: rgba(20,16,12,.55); color: #fff; cursor: pointer; transition: background .2s, transform .2s var(--spring); }
.lb-close:hover { background: rgba(20,16,12,.9); transform: rotate(90deg); }
.lb-close svg { width: 21px; height: 21px; }

.lb-bar { position: absolute; left: 0; right: 0; bottom: 0; z-index: 3; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: 16px 18px calc(16px + env(safe-area-inset-bottom)); background: linear-gradient(to top, rgba(12,9,6,.72), transparent); pointer-events: none; }
.lb-cap { color: rgba(255,255,255,.92); font-family: var(--f-mono); font-size: .74rem; letter-spacing: .03em; min-width: 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.lb-zoom { display: inline-flex; gap: 6px; pointer-events: auto; flex-shrink: 0; }
.lb-btn { min-width: 42px; height: 38px; padding: 0 11px; border-radius: 10px; border: 1px solid rgba(255,255,255,.18); background: rgba(20,16,12,.55); color: #fff; font-family: var(--f-mono); font-size: .82rem; line-height: 1; cursor: pointer; transition: background .18s; }
.lb-btn:hover { background: rgba(20,16,12,.9); }
.lb-close:focus-visible, .lb-btn:focus-visible { outline: 2px solid var(--accent, #C8965C); outline-offset: 2px; }

body.lb-lock { overflow: hidden; }
@media (prefers-reduced-motion: reduce) { .lb-img { transition: none !important; } .lb-close:hover { transform: none; } }