:root{
  --navy:#1F3864; --navy2:#2E5E9E; --accent:#2E74B5; --ink:#22262B; --gray:#5A5A5A;
  --lgray:#8C8C8C; --panel:#F5F7FA; --border:#D5DCE4; --soft:#EAF1F8; --red:#B03A2E;
  --radius:14px;
}
*{box-sizing:border-box}
body{margin:0;font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:#fff}
a{color:var(--accent)}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}

/* header */
header{background:linear-gradient(120deg,#152C50,#1F3864 55%,#2E5E9E);color:#fff;padding:26px 0 22px}
header h1{margin:0;font-size:26px;letter-spacing:.2px}
header .sub{color:#c9d8f0;font-size:14px;margin-top:4px}
header .sub a{color:#fff}
nav.top{display:flex;gap:14px;flex-wrap:wrap;margin-top:14px}
nav.top a{color:#dbe7f6;text-decoration:none;font-size:13.5px;border:1px solid rgba(255,255,255,.35);
  padding:5px 11px;border-radius:999px}
nav.top a:hover{background:rgba(255,255,255,.12);color:#fff}

/* topic cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(238px,1fr));gap:14px;margin:22px 0 40px}
.card{background:var(--soft);border:1px solid #d4e0ee;border-radius:12px;padding:13px 15px;text-decoration:none;color:inherit;display:block}
.card:hover{background:#fff;border-color:var(--accent);box-shadow:0 2px 10px rgba(31,56,100,.10)}
.card .n{display:inline-block;background:var(--accent);color:#fff;border-radius:6px;font-size:11px;font-weight:700;padding:2px 7px}
.card .t{font-weight:700;font-size:15.5px;margin-top:7px}
.card .m{color:var(--gray);font-size:12.5px;margin-top:3px}

/* slide list */
.slide{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);margin:14px 0;overflow:hidden}
.slide>summary{cursor:pointer;list-style:none;display:flex;gap:12px;align-items:center;padding:11px 14px}
.slide>summary::-webkit-details-marker{display:none}
.slide>summary:hover{background:#eef3f9}
.slide .chev{color:var(--accent);font-size:13px;transition:transform .15s}
.slide[open]>summary .chev{transform:rotate(90deg)}
.slide .st{flex:1;min-width:0}
.slide .st b{display:block;font-size:15px}
.slide .st span{color:var(--gray);font-size:12.5px}
.pill{background:var(--accent);color:#fff;border-radius:999px;font-size:11px;font-weight:700;padding:2px 9px;white-space:nowrap}
.pill.fc{background:var(--red)}
.imgwrap{background:#fff;border:1px solid var(--border);border-radius:10px;padding:8px;margin:0 14px 12px}
.imgwrap img{width:100%;height:auto;display:block;border-radius:4px}
/* extracted photos sit on a neutral mat so they read as photos, not slides */
.imgwrap.photo{background:#101317;border-color:#23282e;padding:12px;display:flex;justify-content:center}
.imgwrap.photo img{border-radius:6px;max-height:600px;width:auto;max-width:100%;object-fit:contain;background:#101317}
/* slide renders keep a labelled white frame */
.imgwrap.slide{background:#fff}
.imgwrap.slide img{max-height:520px;width:auto;max-width:100%;margin:0 auto}
.imgcap{font-size:11px;color:var(--lgray);text-align:center;padding:2px 0 7px;letter-spacing:.4px;
  text-transform:uppercase}

.sect{font-weight:800;color:var(--navy);font-size:13px;letter-spacing:.6px;text-transform:uppercase;
  margin:16px 14px 8px;display:flex;align-items:center;gap:7px}
.sect:before{content:"";width:9px;height:9px;background:var(--accent);border-radius:2px}

/* question disclosure */
.q{border-top:1px solid var(--border);background:#fff}
.q>summary{cursor:pointer;list-style:none;padding:10px 14px;display:flex;gap:9px;align-items:flex-start}
.q>summary::-webkit-details-marker{display:none}
.q>summary:hover{background:#f7fafe}
.q .qn{color:var(--accent);font-weight:800;font-size:13.5px;min-width:28px}
.q .qt{font-weight:700;font-size:15px}
.q .mark{border:1px solid #e3e8ee;border-radius:6px;padding:1px 7px;font-size:11px;color:var(--lgray)}
.q[open]>summary{background:#f7fafe}
.a{margin:0 14px 12px 14px;padding:12px 14px;background:var(--panel);border:1px solid var(--border);border-radius:10px}
.a ul{margin:0;padding-left:18px}
.a li{margin:3px 0}
.a b,.a strong{font-weight:800}
mark{border-radius:3px;padding:0 2px}
.fcbox{margin:0 14px 14px;padding:11px 14px;background:#fdf3f2;border:1px solid #e8c6c1;border-radius:10px}
.fcbox .h{color:var(--red);font-weight:800;font-size:12px;letter-spacing:.5px;text-transform:uppercase}
.fcbox p{margin:6px 0 0;font-size:14px}
.fcbox a{font-size:12.5px;word-break:break-all}

/* toolbar + search */
.bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin:16px 0 6px}
.bar input[type=search]{flex:1;min-width:220px;padding:10px 13px;border:1px solid var(--border);border-radius:10px;font-size:15px}
.bar button{padding:10px 14px;border:1px solid var(--border);background:#fff;border-radius:10px;font-size:14px;cursor:pointer}
.bar button:hover{border-color:var(--accent);color:var(--accent)}
.hits{color:var(--gray);font-size:13px;margin:6px 0}
footer{margin:40px 0 30px;color:var(--lgray);font-size:12.5px;border-top:1px solid var(--border);padding-top:14px}

/* lock */
#lock{position:fixed;inset:0;background:linear-gradient(130deg,#152C50,#1F3864 60%,#2E5E9E);display:flex;
  align-items:center;justify-content:center;z-index:50;padding:20px}
#lock .cardbox{background:#fff;border-radius:16px;padding:28px 30px;max-width:400px;width:100%;
  box-shadow:0 18px 50px rgba(0,0,0,.35)}
#lock h2{margin:0 0 4px;color:var(--navy);font-size:21px}
#lock p{margin:0 0 16px;color:var(--gray);font-size:13.5px}
#lock input{width:100%;padding:12px 13px;border:1px solid var(--border);border-radius:10px;font-size:16px}
#lock button{width:100%;margin-top:12px;padding:12px;border:0;border-radius:10px;background:var(--accent);color:#fff;
  font-size:16px;font-weight:700;cursor:pointer}
#lock button:hover{background:#255f96}
#lock .err{color:var(--red);font-size:13px;margin-top:10px;min-height:18px}
#lock .who{font-size:12px;color:var(--lgray);margin-top:14px}
body.locked > header,body.locked > main,body.locked > footer{display:none}
@media (max-width:640px){header h1{font-size:21px}.slide .st b{font-size:14px}}