:root{color-scheme:dark;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#071827;color:#f2f9ff}*{box-sizing:border-box}body{margin:0;min-height:100vh;background:radial-gradient(ellipse at top right,#103c49,transparent 65%)}.shell{width:min(1440px,100%);min-height:100vh;margin:auto;padding:28px}.topbar{display:flex;justify-content:space-between;align-items:center;padding-bottom:24px;border-bottom:1px solid #274455}.brand{display:flex;align-items:center;gap:12px;color:#fff;font-size:20px;font-weight:750;letter-spacing:3px;text-decoration:none}.session{display:flex;align-items:center;gap:10px;color:#bbd0df}.session button{border:1px solid #476171;background:transparent;color:#f2f9ff;border-radius:8px;padding:9px 13px;font:inherit;cursor:pointer}.dot{width:9px;height:9px;border-radius:50%;background:#4ddbc9;box-shadow:0 0 0 4px #4ddbc922}.layout{display:grid;grid-template-columns:320px 1fr;gap:22px;margin-top:22px}.sidebar,.chat{border:1px solid #274455;border-radius:18px;background:#0b2232}.sidebar{padding:28px}.sidebar h1{margin:8px 0 34px;font-size:28px}.eyebrow{color:#51dfd0;font-size:11px;letter-spacing:2px;text-transform:uppercase;font-weight:700}.empty{border-top:1px solid #274455;padding-top:30px;color:#bbd0df}.empty strong{display:block;color:#fff;margin-top:18px}.empty p,.chat-body p{font-size:14px;line-height:1.7}.mark,.shield{display:grid;place-items:center;border-radius:50%;background:#4ddbc9;color:#06202b;font-weight:800}.mark{width:48px;height:48px}.chat{min-height:700px;display:flex;flex-direction:column}.chat-head{display:flex;justify-content:space-between;align-items:flex-start;padding:28px;border-bottom:1px solid #274455}.chat-head h2{margin:7px 0 0;font-size:25px}.badge{border:1px solid #4ddbc9;color:#61e5d4;border-radius:99px;padding:8px 12px;font-size:12px}.chat-body{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:40px;max-width:680px;margin:auto}.shield{width:76px;height:76px;font-size:30px;margin-bottom:22px}.chat-body h3{font-size:24px;margin:0 0 12px}.chat-body p{color:#bbd0df;max-width:560px}.chat-body dl{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;width:100%;margin-top:28px}.chat-body dl div{padding:14px;border:1px solid #274455;border-radius:10px}.chat-body dt{font-size:11px;color:#8ca8b7;text-transform:uppercase;letter-spacing:1px}.chat-body dd{margin:7px 0 0;color:#61e5d4;font-size:13px}.composer{padding:22px 28px;border-top:1px solid #274455}.composer label{display:block;font-size:12px;color:#8ca8b7;margin-bottom:8px}.composer div{display:flex;gap:10px}.composer input{flex:1;border:1px solid #476171;border-radius:9px;padding:14px;background:#071827;color:#fff;font:inherit}.composer button{border:0;border-radius:9px;padding:0 20px;background:#4ddbc9;color:#06202b;font:inherit;font-weight:700}.composer input:disabled,.composer button:disabled{opacity:.55;cursor:not-allowed}.composer p{font-size:12px;color:#8ca8b7;margin:10px 0 0}@media(max-width:800px){.shell{padding:16px}.topbar{align-items:flex-start;gap:16px;flex-direction:column}.layout{grid-template-columns:1fr}.chat{min-height:620px}.chat-body dl{grid-template-columns:1fr}.session{width:100%;justify-content:space-between}}@media(max-width:480px){.chat-head{padding:20px;gap:12px;flex-direction:column}.chat-body{padding:28px 20px}.composer{padding:18px 20px}.composer div{flex-direction:column}.composer button{height:46px}}
/* Phase 4 node/core panel */
.layout{grid-template-columns:320px minmax(0,1fr) 260px}
.node-panel{padding:24px;border:1px solid #274455;border-radius:18px;background:#0b2232}
.node-panel h2{margin:8px 0 18px;font-size:18px}.node-status-card{display:grid;grid-template-columns:auto 1fr;gap:3px 9px;padding:14px;border:1px solid #2f6870;border-radius:12px;background:#103846}.node-status-card strong{color:#61e5d4;font-size:13px}.node-status-card span:last-child{grid-column:2;color:#bbd0df;font-size:11px;overflow-wrap:anywhere}.node-status-dot{width:9px;height:9px;margin-top:4px;border-radius:50%;background:#4ddbc9;box-shadow:0 0 0 4px #4ddbc922}.core-label{margin-top:30px}.node-muted{color:#8ca8b7;font-size:12px!important;line-height:1.5!important}.core-members{display:grid;gap:8px;padding:0;margin:0;list-style:none}.core-members li{display:flex;align-items:center;gap:8px;padding:9px;border-bottom:1px solid #274455;color:#dcebef;font-size:13px}.core-members li::before{content:"";width:8px;height:8px;border-radius:50%;background:#4ddbc9}.core-members small{margin-left:auto;color:#8ca8b7;font-size:10px}@media(max-width:1100px){.layout{grid-template-columns:280px minmax(0,1fr)}.node-panel{grid-column:1 / -1;display:grid;grid-template-columns:1fr 1fr;gap:0 24px}.node-panel .core-label{margin-top:0}}@media(max-width:800px){.layout{grid-template-columns:1fr}.node-panel{display:block}}
[hidden]{display:none!important}