:root{--bg:#0b0e14;--panel:#121722;--line:#222a38;--fg:#d7dee8;--mut:#8a97a8;--ac:#4ea1ff;--ac2:#7ee0c0}
*{box-sizing:border-box}
body{margin:0;font:14px/1.5 system-ui,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--fg)}
/* ── M3 visual hero (3D neural synapse) ── */
body.landing{background:#000;height:100vh;overflow:hidden}
.hero{position:relative;width:100%;height:clamp(380px,58vh,560px);overflow:hidden;background:#000;display:flex;align-items:center;justify-content:center}
.hero.hero-full{height:100vh}
.hero-foot{margin-top:22px;color:#5e6e80;font-size:12px;animation:heroUp .8s ease forwards;animation-delay:.75s;opacity:0}
.hero #neuralCanvas{position:absolute;inset:0;width:100%;height:100%;display:block;background:#000;z-index:0}
.hero-fade{position:absolute;inset:0;z-index:1;background:linear-gradient(to top,var(--bg) 2%,rgba(0,0,0,.45) 45%,transparent 100%)}
.hero-overlay{position:relative;z-index:2;text-align:center;padding:24px;max-width:760px}
.hero-overlay>*{opacity:0;animation:heroUp .8s ease forwards}
.hero-badge{animation-delay:.15s;display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(0,212,255,.08);border:1px solid rgba(0,212,255,.22);backdrop-filter:blur(6px);color:#cfe9ff;font-size:12px;margin-bottom:18px}
.hero-badge svg{color:var(--ac)}
.hero-title{animation-delay:.3s;margin:0 0 14px;font-size:clamp(38px,6vw,68px);font-weight:800;letter-spacing:-.03em;line-height:1;background:linear-gradient(to bottom,#fff,#9fb3c8);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{animation-delay:.45s;margin:0 auto 26px;max-width:620px;font-size:clamp(14px,1.6vw,17px);color:#9fb0c4}.hero-sub b{color:#d7e6f5;font-weight:600}
.hero-actions{animation-delay:.6s;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.hero-btn{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:10px;font-weight:600;text-decoration:none;transition:transform .15s,background .2s;font-size:14px}
.hero-btn.primary{background:#fff;color:#04101f}.hero-btn.primary:hover{background:#dbe7f4;transform:translateY(-1px)}
.hero-btn.ghost{background:transparent;color:#cfe0f0;border:1px solid var(--line)}.hero-btn.ghost:hover{border-color:var(--ac);color:var(--ac)}
@keyframes heroUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
header{display:flex;justify-content:space-between;align-items:center;padding:12px 18px;border-bottom:1px solid var(--line);background:var(--panel)}
.brand{font-weight:700;font-size:16px}.brand span{color:var(--mut);font-weight:400}
.milestone{color:var(--mut);font-size:12px}
nav#tabs{display:flex;gap:4px;padding:8px 14px;border-bottom:1px solid var(--line);background:var(--panel)}
nav#tabs button{background:transparent;border:1px solid var(--line);color:var(--fg);padding:6px 14px;border-radius:6px;cursor:pointer}
nav#tabs button.active{border-color:var(--ac);color:var(--ac)}
main{display:grid;grid-template-columns:300px 1fr;height:calc(100vh - 150px)}
#sidebar{border-right:1px solid var(--line);overflow:auto;padding:10px;background:var(--panel)}
#content{overflow:auto;padding:22px 30px;max-width:900px}
.hint{color:var(--mut);padding:8px}
.grp{margin:6px 0 14px}.grp h4{margin:6px 4px;color:var(--ac2);font-size:11px;text-transform:uppercase;letter-spacing:.06em}
.item{display:block;width:100%;text-align:left;background:transparent;border:0;color:var(--fg);padding:5px 8px;border-radius:5px;cursor:pointer;font-size:13px}
.item:hover{background:#1b2230}.item.sel{background:#1b2738;color:var(--ac)}
#search{width:100%;padding:8px 10px;margin-bottom:10px;background:var(--bg);border:1px solid var(--line);color:var(--fg);border-radius:6px}
.md h1{font-size:22px;border-bottom:1px solid var(--line);padding-bottom:6px}
.md h2{font-size:17px;color:var(--ac2)}.md h3{font-size:15px}
.md code{background:#1b2230;padding:1px 5px;border-radius:4px;font-size:12px}
.md pre{background:#0f141d;border:1px solid var(--line);padding:12px;border-radius:8px;overflow:auto}
.md table{border-collapse:collapse;width:100%}.md td,.md th{border:1px solid var(--line);padding:4px 8px;font-size:12px}
.md a{color:var(--ac)}
.path{color:var(--mut);font-size:12px;margin-bottom:8px}
.snip{color:var(--mut);font-size:12px}
footer{border-top:1px solid var(--line);padding:8px 18px;color:var(--mut);font-size:12px;background:var(--panel)}
footer code{color:var(--ac2)}
/* M3.2 chat */
#content:has(#ask){display:flex;flex-direction:column;height:100%;padding:0;max-width:none}
#thread{flex:1;overflow:auto;padding:22px 30px}
.msg{margin:0 0 16px;max-width:760px}
.msg b{display:block;font-size:11px;color:var(--mut);text-transform:uppercase;letter-spacing:.05em;margin-bottom:3px}
.msg.user div{background:#15202e;border:1px solid var(--line);border-radius:8px;padding:8px 12px;display:inline-block}
.msg.bot{border-left:2px solid var(--ac);padding-left:12px}
.cites{margin-top:8px;font-size:12px;color:var(--mut)}.cites a{color:var(--ac);margin-right:2px}
#ask{display:flex;gap:8px;padding:14px 30px;border-top:1px solid var(--line);background:var(--panel)}
#q{flex:1;padding:10px 12px;background:var(--bg);border:1px solid var(--line);color:var(--fg);border-radius:8px}
#send{padding:10px 20px;background:var(--ac);border:0;color:#04101f;font-weight:700;border-radius:8px;cursor:pointer}
#send:disabled{opacity:.5;cursor:default}
/* M3.3 monitoring */
.note{color:var(--mut);font-size:12px;background:#10161f;border:1px solid var(--line);border-left:3px solid var(--ac2);padding:8px 12px;border-radius:6px;margin:6px 0 16px}
.tiles{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:8px}
.tile{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:14px 18px;min-width:120px}
.tile.warn{border-color:#5a4a1f}
.tile .tv{font-size:26px;font-weight:700}.tile.warn .tv{color:#e6c14a}
.tile .tn{color:var(--mut);font-size:12px}
table.mon{border-collapse:collapse;width:100%;margin:6px 0 10px}
table.mon th,table.mon td{border:1px solid var(--line);padding:6px 10px;font-size:13px;text-align:left}
table.mon th{color:var(--mut);font-weight:600}table.mon td.c{text-align:center}
.badge{font-size:11px;padding:1px 7px;border-radius:10px;border:1px solid var(--line)}
.badge.ok{color:var(--ac2);border-color:#1f5a44}.badge.warn{color:#e6c14a;border-color:#5a4a1f}
.badge.gap{color:#ff8a8a;border-color:#5a2828}
.mon-list{line-height:1.7}.mon-list li{margin-bottom:4px}