:root{--bg:#f5f7fb;--panel:#ffffff;--panel-strong:#ffffff;--ink:#061638;--muted:#6f7a96;--line:#dfe5ef;--accent:#18b8aa;--accent-strong:#087f78;--accent-soft:#c9f6ed;--sidebar:#1c2a50;--sidebar-soft:#263760;--sidebar-muted:#aab7d6;--yellow:#f3c455;--rose:#e05757;--rose-soft:#fff6f4;--shadow:0 10px 28px rgba(21,34,72,0.06);--shadow-strong:0 18px 42px rgba(6,22,56,0.12);--radius:8px;--radius-sm:6px;--content:1180px}*{box-sizing:border-box}body,html{min-height:100%;margin:0;background:var(--bg);color:var(--ink);font-family:Segoe UI,Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Arial,sans-serif;font-size:15px;letter-spacing:0}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{border:0}.app-shell{display:grid;grid-template-columns:260px minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;padding:18px;background:var(--sidebar);color:#fff}.brand-row{display:grid;grid-template-columns:auto minmax(0,1fr);gap:12px;align-items:center;margin-bottom:18px}.logo-mark{display:grid;width:42px;height:42px;place-items:center;border-radius:8px;background:var(--accent);color:#fff;font-weight:700}.brand-title{font-size:16px;font-weight:700}.brand-subtitle{color:var(--sidebar-muted);font-size:12px}.nav-list{display:grid;gap:6px}.nav-item{display:flex;min-height:38px;align-items:center;gap:9px;padding:9px 10px;border-radius:8px;color:#fff;font-weight:600}.nav-item.active,.nav-item:hover{background:rgba(255,255,255,.14)}.main{min-width:0;padding:28px}.content{width:min(100%,var(--content));margin:0 auto}.topline{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:18px}.eyebrow{margin:0 0 6px;color:var(--muted);font-size:13px;font-weight:600}h1,h2,h3,p{margin-top:0}h1{margin-bottom:8px;font-size:28px;line-height:1.12}h2{font-size:24px;line-height:1.18}h3{font-size:18px;line-height:1.2}.muted{color:var(--muted)}.grid{display:grid;gap:14px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.card,.panel{border:1px solid var(--line);border-radius:8px;background:var(--panel);box-shadow:var(--shadow)}.panel{padding:18px}.card{padding:14px}.row{display:flex;flex-wrap:wrap;gap:10px}.button,.row{align-items:center}.button{display:inline-flex;min-height:38px;justify-content:center;gap:8px;padding:8px 12px;border:0;border-radius:8px;background:#f6f8fb;color:var(--ink);cursor:pointer;font-weight:600}.button.primary{background:var(--accent);color:#fff}.button.primary:hover{background:var(--accent-strong)}.button.danger{background:var(--rose-soft);color:var(--rose)}.button:disabled{cursor:not-allowed;opacity:.6}.icon-button{width:38px;min-height:38px;padding:0}input,select,textarea{width:100%;padding:9px 10px;border:1px solid var(--line);border-radius:8px;background:#fff;color:var(--ink)}textarea{min-height:92px;resize:vertical}input:focus,select:focus,textarea:focus{border-color:var(--accent);outline:3px solid rgba(24,184,170,.18)}label{display:grid;gap:6px;color:var(--muted);font-size:13px;font-weight:600}.table-wrap{overflow-x:auto}table{width:100%;border-collapse:collapse;font-size:14px}td,th{padding:10px 8px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{color:var(--muted);text-transform:uppercase}.pill,th{font-size:12px}.pill{display:inline-flex;min-height:26px;align-items:center;padding:4px 8px;border:1px solid #c5e7df;border-radius:999px;background:#edf8f5;color:var(--accent-strong);font-weight:700}.chat-page{min-height:100vh;padding:28px;background:var(--bg)}.chat-shell{display:grid;width:min(100%,820px);min-height:calc(100vh - 56px);margin:0 auto;grid-template-rows:auto minmax(0,1fr) auto;border:1px solid var(--line);border-radius:8px;background:#fff;box-shadow:var(--shadow)}.chat-header,.chat-input{padding:16px;border-bottom:1px solid var(--line)}.chat-input{border-top:1px solid var(--line);border-bottom:0}.messages{display:grid;align-content:start;gap:10px;overflow:auto;padding:16px}.message{max-width:78%;padding:10px 12px;border-radius:8px;white-space:pre-wrap}.message.assistant{justify-self:start;background:#f6f8fb}.message.user{justify-self:end;background:var(--accent-soft)}.denied-page,.login-page{display:grid;min-height:100vh;place-items:center;padding:20px}.login-card{width:min(100%,420px);padding:22px}@media (max-width:900px){.app-shell{grid-template-columns:1fr}.sidebar{position:fixed;z-index:20;width:100%;height:62px;padding:8px 10px}.nav-list{display:none}.main{padding:90px 20px 20px}.grid.two{grid-template-columns:1fr}}@media (max-width:640px){.chat-page,.main{padding:90px 16px 16px}.topline{display:grid}.message{max-width:92%}}