/* HACT ATT&CK-style matrix — stylesheet */
:root{
  --navy:#0b2338;        /* header */
  --navy-2:#12395b;
  --accent:#c8102e;      /* HACT red accent (vs ATT&CK) */
  --accent-2:#e94b5b;
  --bg:#f4f6f8;
  --panel:#ffffff;
  --ink:#1b2a38;
  --muted:#5a6b7b;
  --line:#dce3ea;
  --cell:#eef3f7;
  --cell-hover:#d6e6f2;
  --ai:#7a3cf0;          /* AI-augmented technique */
  --high:#c8102e; --medium:#e08a00; --low:#2e7d32;
  --crit:#a10014;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.5;
}
a{color:var(--navy-2);text-decoration:none}
a:hover{text-decoration:underline}

/* ---- Header / nav ---- */
header.top{
  background:linear-gradient(180deg,var(--navy),var(--navy-2));
  color:#fff;padding:0;position:sticky;top:0;z-index:50;
  box-shadow:0 2px 8px rgba(0,0,0,.25);
}
.nav{display:flex;align-items:center;gap:18px;max-width:1500px;margin:0 auto;padding:10px 20px}
.brand{display:flex;align-items:baseline;gap:10px;font-weight:800;letter-spacing:.5px}
.brand .logo{font-size:22px}
.brand .logo b{color:var(--accent-2)}
.brand .sub{font-size:12px;font-weight:500;color:#9db6cc}
.nav .links{display:flex;gap:16px;margin-left:auto;flex-wrap:wrap}
.nav .links a{color:#cfe0ee;font-size:14px;font-weight:600}
.nav .links a:hover{color:#fff;text-decoration:none}
.nav .search{margin-left:8px}
.nav .search input{
  padding:7px 12px;border-radius:20px;border:1px solid #2c5578;background:#0a2135;color:#fff;
  width:190px;font-size:13px;outline:none;
}
.nav .search input::placeholder{color:#7f9bb4}

/* ---- Hero ---- */
.hero{background:linear-gradient(180deg,var(--navy-2),#1c4a72);color:#fff;padding:34px 20px 30px}
.hero-in{max-width:1500px;margin:0 auto}
.hero h1{margin:0 0 6px;font-size:30px;letter-spacing:.4px}
.hero h1 b{color:var(--accent-2)}
.hero p.lead{margin:0 0 4px;max-width:900px;color:#dbe8f2;font-size:16px}
.hero p.meta{margin:8px 0 0;color:#9db6cc;font-size:13px}
.disclaimer{
  max-width:1500px;margin:0 auto;padding:8px 20px;font-size:12px;color:#8aa1b5;background:#0a1c2c;
}
.stats{display:flex;gap:14px;flex-wrap:wrap;margin-top:16px}
.stat{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.14);border-radius:10px;padding:10px 16px;min-width:150px}
.stat b{display:block;font-size:24px;color:#fff}
.stat span{font-size:12px;color:#cfe0ee}
.stat i{display:block;font-style:normal;font-size:11px;color:#89a4bb;margin-top:3px}

/* ---- Layout ---- */
main{max-width:1500px;margin:0 auto;padding:22px 20px 60px}
section{margin:34px 0}
h2.sec{font-size:20px;border-left:4px solid var(--accent);padding-left:10px;margin:0 0 6px}
.sec-note{color:var(--muted);font-size:14px;margin:0 0 16px;max-width:1000px}

/* ---- Matrix ---- */
.matrix-toolbar{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-bottom:12px;font-size:13px;color:var(--muted)}
.legend{display:flex;gap:14px;flex-wrap:wrap}
.legend span{display:inline-flex;align-items:center;gap:6px}
.dot{width:11px;height:11px;border-radius:3px;display:inline-block}
.dot.high{background:var(--high)}.dot.medium{background:var(--medium)}.dot.low{background:var(--low)}
.dot.ai{background:var(--ai)}
.matrix-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:10px;background:var(--panel)}
table.matrix{border-collapse:separate;border-spacing:4px;padding:4px;min-width:100%}
table.matrix thead th{
  vertical-align:top;background:var(--navy);color:#fff;border-radius:6px;padding:8px 8px;
  font-size:12.5px;min-width:150px;width:150px;text-align:left;
}
table.matrix thead th .tid{color:#9db6cc;font-weight:700;font-size:11px;display:block}
table.matrix thead th .tname{display:block;font-weight:700;font-size:12.5px;margin-top:2px;color:#fff}
table.matrix thead th .teq{color:#7f9bb4;font-weight:500;font-size:10.5px;display:block;margin-top:2px}
table.matrix thead th .cnt{float:right;background:rgba(255,255,255,.15);border-radius:10px;padding:0 7px;font-size:10px}
table.matrix td{vertical-align:top;padding:0}
.cell{
  background:var(--cell);border:1px solid var(--line);border-left:3px solid var(--muted);
  border-radius:5px;padding:6px 8px;font-size:12px;cursor:pointer;transition:.12s;min-height:34px;
}
.cell:hover{background:var(--cell-hover);border-left-color:var(--navy-2)}
.cell.ai{border-left-color:var(--ai)}
.cell .cid{color:var(--muted);font-size:10.5px;font-weight:700}
.cell .cname{display:block;color:var(--ink);font-weight:600;margin-top:1px}
.cell .aitag{font-size:9px;background:var(--ai);color:#fff;border-radius:4px;padding:0 5px;margin-left:4px;vertical-align:middle}
.cell.dim{opacity:.18;pointer-events:none}

/* severity chips */
.chip{display:inline-block;font-size:10.5px;font-weight:700;border-radius:10px;padding:1px 8px;color:#fff}
.chip.high{background:var(--high)}.chip.medium{background:var(--medium)}.chip.low{background:var(--low)}
.chip.crit{background:var(--crit)}
.chip.moderate{background:var(--medium)}
.chip.ghost{background:#e6edf3;color:var(--muted)}

/* ---- Cards / reference blocks ---- */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:16px}
.card h3{margin:0 0 6px;font-size:15px}
.card .tid{color:var(--accent);font-weight:700;font-size:12px}
.card ul{margin:8px 0 0;padding-left:18px;color:var(--muted);font-size:13px}
.card.acc{border-top:3px solid var(--accent)}

table.data{width:100%;border-collapse:collapse;background:var(--panel);border-radius:10px;overflow:hidden;font-size:13.5px}
table.data th{background:var(--navy);color:#fff;text-align:left;padding:9px 12px;font-size:12.5px}
table.data td{padding:9px 12px;border-top:1px solid var(--line);vertical-align:top}
table.data tr:nth-child(even) td{background:#fafcfd}
table.data td.k{font-weight:700;color:var(--navy-2);white-space:nowrap}

.callout{background:#fff7f7;border:1px solid #f3c9cf;border-left:4px solid var(--accent);border-radius:8px;padding:14px 16px;font-size:14px}
.callout.blue{background:#f2f8fc;border-color:#bcd8ec;border-left-color:var(--navy-2)}
.callout b{color:var(--accent)}
.callout.blue b{color:var(--navy-2)}

/* ---- Modal (technique / tactic detail) ---- */
.modal-back{position:fixed;inset:0;background:rgba(8,20,32,.55);display:none;z-index:100;padding:30px}
.modal-back.open{display:flex;align-items:flex-start;justify-content:center}
.modal{background:#fff;max-width:760px;width:100%;border-radius:12px;max-height:88vh;overflow:auto;box-shadow:0 20px 60px rgba(0,0,0,.4)}
.modal .m-head{background:linear-gradient(180deg,var(--navy),var(--navy-2));color:#fff;padding:18px 22px;position:sticky;top:0}
.modal .m-head .mid{color:#9db6cc;font-weight:700;font-size:13px}
.modal .m-head h3{margin:2px 0 6px;font-size:22px}
.modal .m-head .eq{font-size:12.5px;color:#cfe0ee}
.modal .m-head .close{position:absolute;top:14px;right:16px;color:#fff;font-size:24px;cursor:pointer;line-height:1;opacity:.8}
.modal .m-head .close:hover{opacity:1}
.modal .m-body{padding:18px 22px}
.modal .m-body h4{margin:16px 0 6px;font-size:13px;text-transform:uppercase;letter-spacing:.5px;color:var(--accent)}
.modal .m-body p{margin:0 0 8px}
.modal .m-body ul{margin:6px 0;padding-left:20px}
.modal .m-body li{margin:3px 0}
.scorebar{display:flex;gap:10px;flex-wrap:wrap;margin:8px 0}
.scorebar .sb{background:var(--cell);border:1px solid var(--line);border-radius:8px;padding:6px 12px;font-size:12px}
.scorebar .sb b{display:block;color:var(--navy-2);font-size:11px;text-transform:uppercase}
.tech-list{list-style:none;padding:0;margin:0}
.tech-list li{border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:6px;padding:9px 12px;margin:7px 0;background:#fbfcfe}
.tech-list li .tid{color:var(--accent);font-weight:700;font-size:12px}
.tech-list li b{display:block;font-size:14px;margin:1px 0 3px}
.tech-list li span{font-size:13px;color:var(--muted)}
.tech-list li.ai{border-left-color:var(--ai)}
.tech-list li.ai .tid{color:var(--ai)}

footer{background:var(--navy);color:#9db6cc;padding:26px 20px;font-size:13px}
footer .fin{max-width:1500px;margin:0 auto}
footer a{color:#cfe0ee}
footer .tm{font-size:11.5px;color:#6f8aa2;margin-top:10px;max-width:1000px}

.tabs{display:flex;gap:6px;flex-wrap:wrap;margin:14px 0}
.tab{padding:7px 14px;border:1px solid var(--line);border-radius:20px;background:#fff;cursor:pointer;font-size:13px;font-weight:600;color:var(--muted)}
.tab.active{background:var(--navy);color:#fff;border-color:var(--navy)}
.pane{display:none}
.pane.active{display:block}

@media(max-width:640px){
  .hero h1{font-size:23px}
  .nav .search input{width:130px}
  table.matrix thead th{min-width:135px;width:135px}
}