:root{color-scheme:dark;--bg:#050b16;--panel:#0a1728;--line:#173954;--cyan:#23d5ff;--blue:#287cff;--text:#eaf7ff;--muted:#8aa9bb;--green:#38e0ad;--danger:#ff657a}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at 80% 0,#0d3047 0,transparent 32%),var(--bg);color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,sans-serif;min-height:100vh}.hidden{display:none!important}.login-card{width:min(560px,calc(100% - 36px));margin:16vh auto;padding:44px;border:1px solid var(--line);background:rgba(7,20,35,.95);border-radius:22px;box-shadow:0 30px 90px #0008}.eyebrow{letter-spacing:.25em;color:var(--cyan);font-size:.75rem;font-weight:800}.login-card h1,header h1{font-size:2.6rem;margin:.5rem 0}.login-card p,.panel p,.hero p{color:var(--muted);line-height:1.6}input,textarea{width:100%;background:#06121f;border:1px solid #24506d;color:var(--text);padding:15px;border-radius:10px;font:inherit}button{background:linear-gradient(135deg,#1599d0,var(--blue));border:0;color:white;font:inherit;font-weight:750;padding:13px 20px;border-radius:10px;cursor:pointer}.login-card button{width:100%;margin-top:12px}.error{color:var(--danger)!important}.shell{display:grid;grid-template-columns:280px 1fr;min-height:100vh}aside{border-right:1px solid var(--line);padding:28px 18px;background:#061321}.brand{display:flex;align-items:center;gap:12px;padding:0 10px 28px;border-bottom:1px solid var(--line)}.brand>span{display:grid;place-items:center;width:48px;height:48px;background:#073b59;color:var(--cyan);clip-path:polygon(50% 0,90% 20%,90% 75%,50% 100%,10% 75%,10% 20%);font-weight:900}.brand small{display:block;color:var(--cyan);letter-spacing:.12em;margin-top:5px}nav{display:grid;gap:8px;margin-top:28px}nav button{text-align:left;background:transparent;color:var(--muted);border:1px solid transparent}nav button.active{color:var(--cyan);border-color:#21607f;background:#0b2940}main{padding:32px 38px;min-width:0}header{display:flex;justify-content:space-between;align-items:center;margin-bottom:30px}.status{border:1px solid var(--line);padding:10px 14px;border-radius:10px;color:var(--muted)}.view{display:none}.view.active{display:block}.hero,.panel,.messages,.composer,.cards>article{border:1px solid var(--line);background:linear-gradient(145deg,#0b2034,#071522);border-radius:18px;padding:28px}.hero h2{font-size:2.1rem;margin:18px 0 8px}.pill{color:var(--green);background:#083d33;padding:7px 12px;border-radius:7px;font-size:.75rem;font-weight:900}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:18px}.metric{border:1px solid var(--line);background:var(--panel);padding:20px;border-radius:14px}.metric b{display:block;color:var(--cyan);font-size:2rem;margin-top:8px}.messages{height:58vh;overflow:auto}.assistant,.user{max-width:75%;padding:14px 17px;border-radius:16px;margin:10px 0;line-height:1.55}.assistant{background:#0d2940}.user{background:#145c83;margin-left:auto}.composer{display:grid;grid-template-columns:1fr auto;gap:12px;margin-top:14px;padding:14px}.composer textarea{resize:none;min-height:56px}.row{display:grid;grid-template-columns:1fr auto;gap:12px}.cards{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:16px}.cards article h3{margin-top:0}.cards article a{color:var(--cyan)}@media(max-width:900px){.shell{grid-template-columns:1fr}aside{position:relative;border-right:0}.metrics,.cards{grid-template-columns:1fr 1fr}main{padding:22px}}@media(max-width:600px){.metrics,.cards{grid-template-columns:1fr}.composer{grid-template-columns:1fr}.login-card h1,header h1{font-size:2rem}}