/* portal.css — investigations.bthlcorp.com. The BTHL portal design tokens (matching
 * bthlcorp.com) extended with a forensic dossier layer: mono stamps, grid/scanline
 * surfaces, classification badges, custody footers. No third-party CSS.
 */
:root {
  --bg: #000000; --bg2: #05050f; --bg3: #0a0a1a;
  --card: #0d0d20; --card2: #12122a;
  --border: #1a1a3e; --border2: #252550;
  --portal-purple: #8b5cf6; --portal-blue: #3b82f6; --portal-cyan: #06b6d4;
  --portal-green: #10b981; --portal-pink: #ec4899; --portal-gold: #f59e0b;
  --glow-purple: rgba(139,92,246,.15); --glow-green: rgba(16,185,129,.12); --glow-cyan: rgba(6,182,212,.12);
  --text: #e2e8f0; --text-dim: #94a3b8; --text-muted: #64748b;
  --danger: #ef4444;
  --font-display: 'Cinzel', serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-mono: 'Share Tech Mono', ui-monospace, Menlo, monospace;
  --radius: 12px; --radius-lg: 16px;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font-body); background: var(--bg); color: var(--text); line-height: 1.6; -webkit-font-smoothing: antialiased; }
a { color: var(--portal-cyan); text-decoration: none; transition: color .2s; }
a:hover { color: var(--portal-green); }
img { max-width: 100%; }

/* ── Navbar (bthlcorp chrome) ── */
.navbar { position: sticky; top: 0; z-index: 100; background: rgba(0,0,0,.85); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); padding: .6rem 1.5rem; }
.nav-inner { max-width: 1200px; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; }
.nav-brand { display: flex; align-items: center; gap: .6rem; text-decoration: none; }
.nav-brand-text { font-family: var(--font-display); font-size: 1.05rem; font-weight: 700; background: linear-gradient(135deg, var(--portal-purple), var(--portal-green)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; letter-spacing: .04em; }
.nav-links { display: flex; gap: .2rem; list-style: none; align-items: center; }
.nav-links a { padding: .45rem .75rem; border-radius: 8px; font-size: .82rem; font-weight: 500; color: var(--text-dim); }
.nav-links a:hover, .nav-links a.active { color: var(--portal-green); background: rgba(16,185,129,.08); }
.nav-toggle { display: none; background: none; border: none; color: var(--text); font-size: 1.4rem; cursor: pointer; padding: .3rem; }

/* ── Layout ── */
.page-container { max-width: 1200px; margin: 0 auto; padding: 2rem 1.5rem; }
.section-title { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; margin-bottom: 1.4rem; display: flex; align-items: center; gap: .7rem; }

/* ── Forensic surfaces ── */
.dossier-grid-bg { background-image: linear-gradient(rgba(6,182,212,.04) 1px, transparent 1px), linear-gradient(90deg, rgba(6,182,212,.04) 1px, transparent 1px); background-size: 28px 28px; }
.mono { font-family: var(--font-mono); }
.stamp { font-family: var(--font-mono); letter-spacing: .1em; color: var(--portal-cyan); }
.redline { border-top: 1px dashed rgba(239,68,68,.35); }

/* classification / status badges */
.case-status { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .14em; padding: .25rem .7rem; border-radius: 4px; border: 1px solid currentColor; }
.st-active    { color: var(--portal-green); animation: pulse-badge 2s infinite; }
.st-ongoing   { color: var(--portal-gold); }
.st-completed { color: var(--portal-cyan); }
.st-archived  { color: var(--text-muted); }
@keyframes pulse-badge { 0%,100% { opacity: 1; } 50% { opacity: .55; } }

/* evidence-type chips */
.chip { display: inline-block; font-family: var(--font-mono); font-size: .62rem; letter-spacing: .08em; text-transform: uppercase; padding: .14rem .5rem; border-radius: 4px; border: 1px solid var(--border2); color: var(--text-dim); }
.chip.photo { color: var(--portal-green); border-color: rgba(16,185,129,.4); }
.chip.video, .chip.embed { color: var(--portal-purple); border-color: rgba(139,92,246,.4); }
.chip.audio { color: var(--portal-cyan); border-color: rgba(6,182,212,.4); }
.chip.emf_data, .chip.rf_data { color: var(--portal-gold); border-color: rgba(245,158,11,.4); }
.chip.session_log, .chip.document { color: var(--text-dim); }

/* ── Case cards (archive grid) ── */
.case-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1.5rem; }
.case-card { display: block; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; color: inherit; transition: all .25s; }
.case-card:hover { border-color: var(--portal-green); box-shadow: 0 0 24px var(--glow-green); transform: translateY(-2px); color: inherit; }
.case-card .cover { height: 180px; background: var(--bg3); position: relative; overflow: hidden; }
.case-card .cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.case-card .cover .nocover { display: flex; align-items: center; justify-content: center; height: 100%; font-family: var(--font-mono); font-size: .7rem; color: var(--text-muted); letter-spacing: .2em; }
.case-card .cover .status-wrap { position: absolute; top: .6rem; right: .6rem; }
.case-card .body { padding: 1.1rem 1.2rem 1.2rem; }
.case-card .casenum { font-family: var(--font-mono); font-size: .7rem; color: var(--portal-cyan); letter-spacing: .12em; margin-bottom: .3rem; }
.case-card h3 { font-size: 1.02rem; font-weight: 600; margin-bottom: .4rem; color: var(--text); }
.case-card .meta { font-family: var(--font-mono); font-size: .68rem; color: var(--text-muted); margin-bottom: .5rem; }
.case-card p { color: var(--text-dim); font-size: .84rem; line-height: 1.55; margin-bottom: .7rem; }
.case-card .chips { display: flex; flex-wrap: wrap; gap: .35rem; }

/* ── Dossier (case detail) ── */
.dossier-head { border: 1px solid var(--border); border-radius: var(--radius-lg); background: linear-gradient(180deg, rgba(13,13,32,.9), rgba(5,5,15,.95)); padding: 1.8rem; margin-bottom: 2rem; position: relative; overflow: hidden; }
.dossier-head::before { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(6,182,212,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(6,182,212,.05) 1px, transparent 1px); background-size: 26px 26px; pointer-events: none; }
.dossier-head .casenum { font-family: var(--font-mono); font-size: .85rem; color: var(--portal-cyan); letter-spacing: .16em; }
.dossier-head h1 { font-family: var(--font-display); font-size: clamp(1.4rem, 4vw, 2.1rem); font-weight: 800; margin: .4rem 0 .8rem; background: linear-gradient(135deg, var(--portal-purple), var(--portal-cyan), var(--portal-green)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.dossier-meta { display: flex; flex-wrap: wrap; gap: 1.4rem; font-family: var(--font-mono); font-size: .74rem; color: var(--text-dim); margin-bottom: .8rem; }
.dossier-meta .k { color: var(--text-muted); }
.custody-line { font-family: var(--font-mono); font-size: .7rem; color: var(--portal-green); letter-spacing: .1em; border-top: 1px solid var(--border); padding-top: .8rem; }
.dossier-body { color: var(--text-dim); font-size: .95rem; line-height: 1.75; max-width: 860px; margin-bottom: 2.5rem; }
.dossier-body h2, .dossier-body h3 { font-family: var(--font-mono); color: var(--text); margin: 1.4em 0 .5em; }
.dossier-body blockquote { border-left: 3px solid var(--portal-purple); padding: .3em 1em; margin: 1em 0; }
.dossier-body img { border-radius: 8px; }

/* evidence sections */
.ev-section { margin-bottom: 2.6rem; }
.ev-section > .ev-title { font-family: var(--font-mono); font-size: .8rem; letter-spacing: .18em; color: var(--text-dim); border-bottom: 1px solid var(--border); padding-bottom: .5rem; margin-bottom: 1.1rem; }
.ev-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; }
.ev-card { margin: 0; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; transition: all .25s; }
.ev-card:hover, .ev-card:focus { border-color: var(--portal-cyan); box-shadow: 0 0 20px var(--glow-cyan); transform: translateY(-2px); outline: none; }
.ev-card.clickable { cursor: pointer; }
.ev-card img { display: block; width: 100%; height: 170px; object-fit: cover; background: #05050f; }
.ev-card video, .ev-card audio { display: block; width: 100%; background: #05050f; }
.ev-card video { max-height: 300px; }
.ev-card audio { padding: 1rem .8rem .4rem; }
.ev-card .yt { aspect-ratio: 16/9; width: 100%; border: 0; display: block; background: #05050f; }
.ev-card figcaption { padding: .55rem .75rem .3rem; font-size: .8rem; color: var(--text-dim); line-height: 1.4; }
.ev-custody { padding: .3rem .75rem .6rem; font-family: var(--font-mono); font-size: .6rem; color: var(--text-muted); letter-spacing: .04em; }
.ev-custody .hash { color: var(--portal-green); }
.ev-data-table { width: 100%; border-collapse: collapse; font-size: .8rem; }
.ev-data-table td { padding: .4rem .75rem; border-bottom: 1px solid var(--border); color: var(--text-dim); }
.ev-data-table td:first-child { font-family: var(--font-mono); font-size: .68rem; color: var(--text-muted); text-transform: uppercase; width: 40%; }

/* lightbox */
#ev-lb { position: fixed; inset: 0; z-index: 9998; background: rgba(0,0,0,.93); backdrop-filter: blur(6px); display: none; align-items: center; justify-content: center; flex-direction: column; padding: 2rem; }
#ev-lb.open { display: flex; }
#ev-lb img { max-width: 94vw; max-height: 80vh; border-radius: 10px; border: 1px solid var(--border2); }
#ev-lb .cap { margin-top: .8rem; color: var(--text-dim); font-size: .9rem; text-align: center; }
#ev-lb .custody { margin-top: .3rem; font-family: var(--font-mono); font-size: .66rem; color: var(--portal-green); text-align: center; letter-spacing: .06em; }
#ev-lb .x { position: absolute; top: 1rem; right: 1.25rem; color: #fff; font-size: 2rem; cursor: pointer; opacity: .8; }

/* filter chips row */
.filters { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.6rem; }
.filters a { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .06em; padding: .35rem .85rem; border-radius: 18px; border: 1px solid var(--border2); color: var(--text-dim); }
.filters a.on, .filters a:hover { border-color: var(--portal-green); color: var(--portal-green); background: rgba(16,185,129,.06); }

/* field notes */
.note-list { max-width: 780px; }
.note-item { display: block; padding: 1.2rem 0; border-bottom: 1px solid var(--border); color: inherit; }
.note-item:hover h3 { color: var(--portal-green); }
.note-item .meta { font-family: var(--font-mono); font-size: .68rem; color: var(--text-muted); margin-bottom: .25rem; }
.note-item h3 { font-size: 1.05rem; color: var(--text); transition: color .2s; }
.note-item p { color: var(--text-dim); font-size: .86rem; }

/* hero */
.hero { padding: 4rem 1.5rem 2.5rem; text-align: center; position: relative; overflow: hidden; }
.hero::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 30%, rgba(139,92,246,.08) 0%, rgba(16,185,129,.04) 40%, transparent 70%); }
.hero h1 { font-family: var(--font-display); font-size: clamp(1.7rem, 5.5vw, 2.6rem); font-weight: 900; position: relative; background: linear-gradient(135deg, var(--portal-purple) 0%, var(--portal-cyan) 40%, var(--portal-green) 100%); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero .tag { position: relative; font-family: var(--font-mono); font-size: .8rem; color: var(--text-dim); letter-spacing: .2em; margin-top: .5rem; }
.hero p.lead { position: relative; color: var(--text-muted); font-size: .9rem; max-width: 640px; margin: 1rem auto 0; }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: .4rem; padding: .6rem 1.3rem; border-radius: 8px; font-size: .85rem; font-weight: 600; cursor: pointer; border: none; transition: all .25s; text-decoration: none; }
.btn-primary { background: linear-gradient(135deg, var(--portal-purple), var(--portal-green)); color: #fff; }
.btn-primary:hover { opacity: .9; transform: translateY(-1px); box-shadow: 0 4px 15px var(--glow-purple); color: #fff; }
.btn-ghost { background: transparent; border: 1px solid var(--border2); color: var(--text-dim); }
.btn-ghost:hover { border-color: var(--portal-green); color: var(--portal-green); background: rgba(16,185,129,.06); }

/* footer */
footer { background: var(--bg2); border-top: 1px solid var(--border); margin-top: 4rem; padding: 2.4rem 1.5rem; }
.foot-inner { max-width: 1200px; margin: 0 auto; display: flex; flex-wrap: wrap; gap: 1.5rem; justify-content: space-between; align-items: center; }
.foot-inner .mono { font-size: .68rem; color: var(--text-muted); }
.foot-links { display: flex; flex-wrap: wrap; gap: 1rem; font-size: .8rem; }
.foot-links a { color: var(--text-dim); }

/* responsive */
@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .nav-links { display: none; flex-direction: column; position: absolute; top: 100%; left: 0; right: 0; background: rgba(0,0,0,.97); backdrop-filter: blur(20px); padding: .5rem; border-bottom: 1px solid var(--border); gap: 0; z-index: 200; align-items: stretch; }
  .nav-links.open { display: flex; }
  .nav-links a { padding: .75rem 1rem; font-size: .92rem; border-bottom: 1px solid var(--border); }
  .case-grid, .ev-grid { grid-template-columns: 1fr; }
  .page-container { padding: 1.2rem 1rem; }
  .dossier-head { padding: 1.2rem; }
  .dossier-meta { gap: .8rem; }
}
@media (pointer: coarse) { .nav-links a, .btn { min-height: 44px; } }