:root{--nav:#0b1728;--primary:#2563eb;--text:#172033;--muted:#6b7689;--line:#dbe3ee}
*{box-sizing:border-box}body{margin:0;min-height:100vh;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;background:#eef3f9;color:var(--text);display:grid;grid-template-columns:minmax(360px,.9fr) minmax(480px,1.1fr)}
.login-side{background:radial-gradient(circle at 20% 20%,rgba(59,130,246,.28),transparent 32%),radial-gradient(circle at 80% 80%,rgba(124,58,237,.24),transparent 30%),linear-gradient(145deg,#0d1b2f,#07101d);color:#fff;padding:56px;display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}.login-side:after{content:"";position:absolute;width:380px;height:380px;border:1px solid rgba(255,255,255,.08);border-radius:50%;right:-170px;top:90px;box-shadow:0 0 0 70px rgba(255,255,255,.025),0 0 0 140px rgba(255,255,255,.018)}.brand{display:flex;align-items:center;gap:13px;position:relative;z-index:1}.mark{width:50px;height:50px;border-radius:15px;display:grid;place-items:center;font-weight:900;background:linear-gradient(135deg,#3b82f6,#7c3aed);box-shadow:0 14px 28px rgba(37,99,235,.3)}.brand strong{display:block;font-size:17px}.brand small{color:#a9bad0}.pitch{position:relative;z-index:1;max-width:520px}.pitch h1{font-size:44px;line-height:1.08;margin:0 0 18px;letter-spacing:-1.5px}.pitch p{font-size:16px;color:#b7c6d8;line-height:1.75;margin:0}.features{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:30px}.feature{border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.045);padding:14px;border-radius:14px;color:#dce6f2;font-size:13px}.side-footer{position:relative;z-index:1;color:#7890ac;font-size:12px}.login-main{display:grid;place-items:center;padding:36px}.login-box{width:min(430px,100%)}.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:1.4px;color:var(--primary);font-weight:800}.login-box h2{font-size:31px;margin:9px 0 8px;letter-spacing:-.7px}.intro{color:var(--muted);margin:0 0 28px;line-height:1.6}.field{display:grid;gap:8px;margin-bottom:17px}.field label{font-size:13px;font-weight:750}.field input{width:100%;padding:13px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;outline:none;font:inherit;transition:.18s}.field input:focus{border-color:#7fa8fa;box-shadow:0 0 0 4px rgba(37,99,235,.1)}button{width:100%;border:0;border-radius:12px;padding:13px;background:var(--primary);color:#fff;font:inherit;font-weight:800;cursor:pointer;box-shadow:0 10px 20px rgba(37,99,235,.2)}button:hover{background:#1d4ed8}.error{background:#fff0f0;border:1px solid #f2c5c5;color:#a72f2f;padding:12px 14px;border-radius:11px;margin-bottom:18px;font-size:13px;font-weight:650}.security{display:flex;align-items:center;justify-content:center;gap:7px;color:#8994a5;font-size:12px;margin-top:18px}@media(max-width:900px){body{display:block;background:linear-gradient(145deg,#0d1b2f,#07101d);padding:24px}.login-side{display:none}.login-main{min-height:calc(100vh - 48px);background:#f7f9fc;border-radius:22px;padding:28px 20px}.login-box h2{font-size:28px}}