:root{--navy950:#071126;--navy900:#0b1739;--blue700:#084ccf;--blue500:#1677ff;--bg:#f5f8fd;--border:#e4eaf4;--text:#111827;--soft:#5f6b7b}*{box-sizing:border-box}body{margin:0;min-height:100vh;font:15px/1.55 Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;color:var(--text);background:radial-gradient(circle at 100% 0,rgba(22,119,255,.09),transparent 32rem),var(--bg);display:grid;place-items:center;padding:24px}.login-shell{width:min(980px,100%);min-height:580px;display:grid;grid-template-columns:380px 1fr;border-radius:22px;overflow:hidden;background:#fff;box-shadow:0 28px 70px rgba(9,30,66,.14);border:1px solid var(--border)}.login-brand{padding:42px 36px;color:#fff;background:radial-gradient(circle at 20% 0,rgba(22,119,255,.28),transparent 22rem),linear-gradient(180deg,var(--navy900),var(--navy950));display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:12px}.mark{width:45px;height:45px;border-radius:12px;display:grid;place-items:center;font-weight:900;background:linear-gradient(145deg,var(--blue500),var(--blue700));box-shadow:0 10px 26px rgba(22,119,255,.3)}.brand-copy strong,.brand-copy small{display:block}.brand-copy strong{font-size:18px}.brand-copy small{margin-top:3px;color:rgba(255,255,255,.55);font-size:11px}.login-brand h1{font-size:31px;line-height:1.15;margin:76px 0 12px;letter-spacing:-.04em}.login-brand p{color:rgba(255,255,255,.62);margin:0}.security{margin-top:auto;padding:15px;border:1px solid rgba(255,255,255,.1);border-radius:12px;background:rgba(255,255,255,.04);font-size:12px;color:rgba(255,255,255,.65)}.login-form{padding:60px 62px;display:flex;flex-direction:column;justify-content:center}.eyebrow{font-size:10px;font-weight:900;letter-spacing:.14em;color:var(--blue500)}h2{font-size:30px;margin:7px 0 8px;letter-spacing:-.035em}.intro{color:var(--soft);margin:0 0 28px}label{display:block;font-size:12px;font-weight:800;margin-bottom:6px}input{width:100%;height:46px;padding:0 12px;border:1px solid #d8e1ee;border-radius:9px;outline:none;margin-bottom:16px}input:focus{border-color:var(--blue500);box-shadow:0 0 0 3px rgba(22,119,255,.1)}button{width:100%;height:46px;border:0;border-radius:10px;color:#fff;background:linear-gradient(135deg,var(--blue500),var(--blue700));font-weight:850;cursor:pointer;box-shadow:0 9px 22px rgba(22,119,255,.2)}.err{margin-bottom:16px;padding:12px 14px;border:1px solid #f2cbd1;border-radius:10px;background:#fff0f2;color:#9d2635;font-size:13px}.foot{margin-top:18px;color:#8a95a5;font-size:11px;text-align:center}@media(max-width:760px){.login-shell{grid-template-columns:1fr;min-height:auto}.login-brand{padding:28px}.login-brand h1{margin:38px 0 10px;font-size:27px}.security{margin-top:30px}.login-form{padding:36px 28px}}