/* ===== UMID Training — light forensic DNA theme (matches About / Funding / Glossary / Contact) ===== */
.tr { --dn-ink:#14183d; --dn-teal:#0e7490; --dn-cyan:#22d3ee; --dn-violet:#8b5cf6; --dn-indigo:#6366f1; --dn-a:#34d399; --dn-t:#f87171; --dn-g:#fbbf24; --dn-c:#60a5fa;
  --dn-border:#e4e7f5; --dn-mono:'JetBrains Mono',ui-monospace,monospace;
  font-family:'Inter',system-ui,sans-serif; color:#1f2937; background:#f4f6ff; }
.tr * { box-sizing:border-box; }
.tr-wrap { width:100%; max-width:1400px; margin:0 auto; padding:0 clamp(20px,5vw,80px); }
.tr-mono { font-family:var(--dn-mono); letter-spacing:.1em; text-transform:uppercase; font-size:11.5px; }

/* hero */
.tr-hero { position:relative; overflow:hidden; padding:64px 0 80px; text-align:center; color:var(--dn-ink);
  background:
    radial-gradient(800px 280px at 50% 0%, rgba(34,211,238,.20), transparent 70%),
    radial-gradient(600px 320px at 8% 25%, rgba(99,102,241,.16), transparent 70%),
    radial-gradient(600px 320px at 100% 100%, rgba(139,92,246,.14), transparent 70%),
    linear-gradient(180deg,#e6efff 0,#f4f6ff 100%); }
.tr-hero::before { content:""; position:absolute; inset:0; pointer-events:none;
  background-image:linear-gradient(rgba(99,102,241,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(99,102,241,.08) 1px,transparent 1px);
  background-size:44px 44px; -webkit-mask-image:radial-gradient(ellipse at center,#000 35%,transparent 85%); mask-image:radial-gradient(ellipse at center,#000 35%,transparent 85%); }
.tr-hero .tr-wrap { position:relative; }
.tr-tag { display:inline-flex; align-items:center; gap:10px; padding:5px 12px; border-radius:999px; color:var(--dn-teal);
  border:1px solid rgba(14,116,144,.3); background:#fff; font-family:var(--dn-mono); font-size:10.5px; letter-spacing:.1em; text-transform:uppercase; box-shadow:0 4px 14px rgba(99,102,241,.10); }
.tr-dot { width:8px; height:8px; border-radius:50%; background:var(--dn-teal); animation:tr-pulse 2s infinite; }
@keyframes tr-pulse { 0%{box-shadow:0 0 0 0 rgba(14,116,144,.5);} 70%,100%{box-shadow:0 0 0 10px rgba(14,116,144,0);} }
.tr-hero h1 { margin:16px 0 8px; font-size:clamp(32px,5vw,52px); font-weight:800; letter-spacing:-.03em; color:var(--dn-ink); }
.tr-hero h1 em { font-style:normal; background:linear-gradient(90deg,#0891b2,var(--dn-indigo),var(--dn-violet)); -webkit-background-clip:text; background-clip:text; color:transparent; }
.tr-hero p { max-width:660px; margin:0 auto; color:#4b5563; font-size:16px; line-height:1.6; }
.tr-helix { display:block; width:96px; height:6px; margin:22px auto 0; border-radius:6px;
  background:linear-gradient(90deg,var(--dn-a) 0 25%,var(--dn-t) 25% 50%,var(--dn-g) 50% 75%,var(--dn-c) 75% 100%); }

/* fact cards (overlap hero) */
.tr-facts { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px; margin:-36px auto 0; position:relative; z-index:2; }
.tr-fact { position:relative; overflow:hidden; padding:20px 20px 18px; border-radius:18px; background:#fff; border:1px solid var(--dn-border);
  box-shadow:0 12px 34px rgba(60,80,160,.10); transition:transform .25s, box-shadow .25s; }
.tr-fact::before { content:""; position:absolute; left:0; right:0; top:0; height:3px; background:var(--k); }
.tr-fact:hover { transform:translateY(-4px); box-shadow:0 18px 40px rgba(60,80,160,.16); }
.tr-fact i { width:38px; height:38px; display:grid; place-items:center; border-radius:11px; color:var(--k); background:color-mix(in srgb,var(--k) 14%,transparent); font-size:16px; }
.tr-fact strong { display:block; margin:12px 0 2px; font-size:22px; font-weight:800; color:var(--dn-ink); letter-spacing:-.01em; }
.tr-fact span { font-size:13.5px; color:#6b7280; line-height:1.45; }

/* intro card */
.tr-section { padding:56px 0 8px; }
.tr-card { position:relative; padding:34px 40px; border-radius:22px; background:#fff; border:1px solid var(--dn-border); box-shadow:0 10px 34px rgba(60,80,160,.08); overflow:hidden; }
.tr-card::before { content:""; position:absolute; left:0; top:0; bottom:0; width:5px; background:linear-gradient(180deg,var(--dn-a),var(--dn-c),var(--dn-violet),var(--dn-t)); }
.tr-kicker { color:var(--dn-indigo); }
.tr-card h2 { margin:10px 0 14px; font-size:clamp(22px,2.8vw,30px); font-weight:800; letter-spacing:-.02em; color:var(--dn-ink); }
.tr-card p { margin:0 0 14px; font-size:16px; line-height:1.85; color:#374151; }
.tr-card p:last-child { margin-bottom:0; }

/* section heading */
.tr-head { text-align:center; margin:56px 0 28px; }
.tr-head h2 { margin:10px 0 0; font-size:clamp(24px,3vw,34px); font-weight:800; letter-spacing:-.02em; color:var(--dn-ink); }

/* modules */
.tr-modules { display:grid; gap:20px; }
.tr-mod { position:relative; overflow:hidden; border-radius:22px; background:#fff; border:1px solid var(--dn-border); box-shadow:0 6px 20px rgba(60,80,160,.07); transition:box-shadow .25s, border-color .25s; }
.tr-mod::before { content:""; position:absolute; left:0; right:0; top:0; height:4px; background:var(--k); }
.tr-mod:hover { border-color:var(--k); box-shadow:0 16px 34px rgba(60,80,160,.14); }
.tr-mod-body { display:grid; grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr); gap:28px; padding:30px 32px 22px; align-items:start; }
.tr-mod:nth-child(even) .tr-mod-text { order:2; }
.tr-mod:nth-child(even) .tr-mod-media { order:1; }
.tr-num { display:inline-flex; align-items:center; gap:12px; margin:0 0 18px; }
.tr-num b { width:46px; height:46px; display:grid; place-items:center; border-radius:12px; color:var(--k); background:color-mix(in srgb,var(--k) 14%,transparent); font-family:var(--dn-mono); font-size:18px; }
.tr-num h3 { margin:0; font-size:clamp(17px,2vw,21px); font-weight:800; letter-spacing:-.01em; color:var(--dn-ink); text-transform:uppercase; }
.tr-sub { margin:0 0 16px; }
.tr-sub:last-child { margin-bottom:0; }
.tr-sub h4 { display:flex; align-items:center; gap:8px; margin:0 0 6px; font-size:15px; font-weight:700; color:var(--dn-ink); }
.tr-sub h4 i { color:var(--k); font-size:14px; }
.tr-sub ol { margin:0; padding-left:0; list-style:none; counter-reset:li; }
.tr-sub li { position:relative; margin:0 0 4px; padding-left:30px; font-size:14.5px; line-height:1.65; color:#374151; counter-increment:li; }
.tr-sub li::before { content:counter(li, lower-alpha) "."; position:absolute; left:0; top:0; width:24px; text-align:right; font-weight:700; color:var(--k); font-family:var(--dn-mono); font-size:13px; }
.tr-mod-media { display:flex; align-items:center; justify-content:center; }
.tr-mod-media img { display:block; width:100%; max-width:100%; height:auto; border-radius:14px; border:1px solid var(--dn-border); box-shadow:0 8px 22px rgba(60,80,160,.12); }
.tr-focus { display:flex; align-items:flex-start; gap:12px; margin:0; padding:14px 32px; background:#fffbeb; border-top:1px solid #fde68a; font-size:14.5px; line-height:1.6; color:#78350f; }
.tr-focus i { flex:0 0 18px; margin-top:4px; color:#d97706; }
.tr-focus strong { color:#92400e; }

/* hands-on */
.tr-hands { position:relative; overflow:hidden; margin:56px 0 0; padding:34px 36px; border-radius:22px; background:#fff; border:1px solid var(--dn-border); box-shadow:0 10px 34px rgba(60,80,160,.08); }
.tr-hands::before { content:""; position:absolute; left:0; right:0; top:0; height:3px; background:linear-gradient(90deg,var(--dn-a) 0 25%,var(--dn-t) 25% 50%,var(--dn-g) 50% 75%,var(--dn-c) 75% 100%); }
.tr-hands h2 { margin:10px 0 6px; font-size:clamp(22px,2.8vw,30px); font-weight:800; letter-spacing:-.02em; color:var(--dn-ink); }
.tr-hands > p { margin:0 0 20px; color:#4b5563; font-size:15.5px; }
.tr-checks { list-style:none; margin:0; padding:0; display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:12px; }
.tr-checks li { display:flex; align-items:center; gap:12px; padding:14px 16px; border-radius:14px; background:#f7f8ff; border:1px solid var(--dn-border); font-size:14.5px; font-weight:600; color:var(--dn-ink); line-height:1.45; }
.tr-checks i { flex:0 0 32px; width:32px; height:32px; display:grid; place-items:center; border-radius:9px; color:var(--k); background:color-mix(in srgb,var(--k) 14%,transparent); font-size:13px; }

/* closing banner */
.tr-cta { margin:40px 0 64px; padding:34px 28px; border-radius:22px; text-align:center; color:var(--dn-ink); background:radial-gradient(500px 220px at 0% 0%,rgba(99,102,241,.14),transparent 70%),radial-gradient(500px 220px at 100% 100%,rgba(34,211,238,.18),transparent 70%),#fff; border:1px solid var(--dn-border); box-shadow:0 18px 46px rgba(60,80,160,.14); }
.tr-cta h3 { margin:0; font-size:clamp(20px,2.6vw,28px); font-weight:800; letter-spacing:-.01em; }
.tr-cta h3 i { color:var(--dn-indigo); margin-right:8px; }

/* reveal */
.tr-rv { transition:opacity .6s ease, transform .6s ease; }
.tr-rv.tr-pre { opacity:0; transform:translateY(22px); }

@media (max-width:991px) {
  .tr-mod-body { grid-template-columns:1fr; }
  .tr-mod:nth-child(even) .tr-mod-text, .tr-mod:nth-child(even) .tr-mod-media { order:0; }
  .tr-mod-media { max-width:520px; }
  .tr-checks { grid-template-columns:repeat(2,minmax(0,1fr)); }
}
@media (max-width:767px) {
  .tr-hero { padding:46px 0 66px; }
  .tr-facts { grid-template-columns:1fr; margin-top:-30px; }
  .tr-card, .tr-hands { padding:24px 20px; } .tr-card p { font-size:15px; line-height:1.8; }
  .tr-mod-body { padding:24px 20px 18px; }
  .tr-focus { padding:14px 20px; }
  .tr-section { padding-top:44px; }
  .tr-checks { grid-template-columns:1fr; }
}
@media (prefers-reduced-motion:reduce) { .tr-dot { animation:none; } .tr-rv, .tr-rv.tr-pre { transition:none; opacity:1; transform:none; } }