:root{color-scheme:dark;--bg:#07111f;--panel:rgba(8,20,38,0.86);--panel-2:rgba(14,29,52,0.9);--line:rgba(151,180,219,0.16);--text:#f4f8fc;--muted:#8fa4be;--accent:#69d2ff;--accent-2:#9bffb0;--danger:#ff857a}*{box-sizing:border-box}body,html{margin:0;min-height:100%;background:radial-gradient(circle at top left,rgba(72,165,255,.22),transparent 34%),radial-gradient(circle at top right,rgba(82,255,176,.12),transparent 28%),linear-gradient(180deg,#08111f,#040811);color:var(--text);font-family:SF Mono,IBM Plex Mono,JetBrains Mono,ui-monospace,monospace}body{min-height:100vh}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer}.shell{width:min(1400px,calc(100vw - 32px));margin:0 auto;padding:24px 0 40px}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 20px;border:1px solid var(--line);border-radius:18px;background:rgba(4,10,20,.66);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}.brand{display:flex;flex-direction:column;gap:6px}.brand h1{margin:0;font-size:18px;letter-spacing:.08em;text-transform:uppercase}.brand p{margin:0;color:var(--muted);font-size:12px}.nav{display:flex;gap:12px}.nav a{padding:10px 12px;border-radius:12px;border:1px solid transparent;color:var(--muted)}.nav a:hover{border-color:var(--line);color:var(--text);background:rgba(255,255,255,.03)}.page{margin-top:22px}.panel{background:var(--panel);box-shadow:0 24px 80px rgba(0,0,0,.28);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px)}.panel,.panel-alt{border:1px solid var(--line);border-radius:20px}.panel-alt{background:var(--panel-2);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px)}.stack{display:flex;flex-direction:column;gap:18px}.grid{display:grid;gap:18px}.grid-2{grid-template-columns:minmax(280px,340px) minmax(0,1fr)}.section{padding:18px 20px}.section-title{margin:0 0 14px;font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}.badge{display:inline-flex;align-items:center;gap:8px;padding:8px 10px;border:1px solid var(--line);border-radius:999px;color:var(--muted);font-size:12px}.badge strong{color:var(--text)}.button-row{display:flex;flex-wrap:wrap;gap:10px}.btn{border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.04);color:var(--text);padding:10px 14px;transition:transform .12s ease,border-color .12s ease,background .12s ease}.btn:hover{transform:translateY(-1px);border-color:rgba(105,210,255,.45);background:rgba(105,210,255,.08)}.btn-primary{border-color:rgba(105,210,255,.38);background:linear-gradient(180deg,rgba(105,210,255,.22),rgba(105,210,255,.08))}.btn-danger{border-color:rgba(255,133,122,.32);color:#ffd0ca}.btn:disabled{opacity:.48;cursor:not-allowed;transform:none}.input,.select,.textarea{width:100%;border:1px solid var(--line);border-radius:14px;background:rgba(2,8,16,.72);color:var(--text);padding:12px 14px}.textarea{min-height:120px;resize:vertical}.form-grid{display:grid;gap:12px}.row,.row-between{display:flex;align-items:center;gap:12px}.row-between{justify-content:space-between}.muted{color:var(--muted)}.list{display:flex;flex-direction:column;gap:10px}.file-card,.message-card,.session-card{border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.025);padding:14px}.session-card.active{border-color:rgba(105,210,255,.48);background:rgba(105,210,255,.08)}.file-card h3,.message-card h3,.session-card h3{margin:0 0 8px;font-size:14px}.message-card.user{border-color:rgba(155,255,176,.24)}.message-card.assistant{border-color:rgba(105,210,255,.24)}.message-text{margin:0;white-space:pre-wrap;line-height:1.6}.split{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(300px,.9fr);gap:18px}.console{max-height:58vh;overflow:auto}.caption{font-size:12px;color:var(--muted)}.hero{padding:28px}.hero h2{margin:0 0 12px;font-size:28px;line-height:1.15}.hero p{margin:0;max-width:760px;line-height:1.7;color:var(--muted)}@media (max-width:1080px){.grid-2,.split{grid-template-columns:1fr}.shell{width:min(100vw - 20px,1400px)}}