* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; color: #1e293b; }
.login-body { min-height: 100vh; background: #eef2f6; display: grid; place-items: center; padding: 28px; }
.login-shell { width: min(980px, 100%); min-height: 560px; display: grid; grid-template-columns: 1.05fr .95fr; background: #fff; border-radius: 22px; overflow: hidden; box-shadow: 0 24px 70px rgba(15, 23, 42, .15); }
.login-brand-panel { background: #17212b; color: #fff; padding: 60px 54px; display: flex; flex-direction: column; justify-content: center; }
.login-logo { width: 180px; max-height: 72px; object-fit: contain; object-position: left center; background: #fff; padding: 8px 12px; border-radius: 8px; }
.login-logo-link { align-self: flex-start; }
.login-kicker { margin: 42px 0 10px; font-size: 12px; font-weight: 700; letter-spacing: .16em; color: #93c5fd; }
.login-brand-panel h1 { font-size: 38px; line-height: 1.12; margin: 0 0 18px; }
.login-brand-panel > p:last-child { line-height: 1.65; color: #cbd5e1; margin: 0; }
.login-card { padding: 64px 52px; display: flex; flex-direction: column; justify-content: center; }
.login-card h2 { font-size: 30px; margin: 0 0 8px; color: #111827; }
.login-subtitle { margin: 0 0 30px; color: #64748b; }
.login-card form { display: grid; gap: 10px; }
.login-card label { font-size: 13px; font-weight: 700; margin-top: 6px; }
.login-card input { height: 48px; border: 1px solid #cbd5e1; border-radius: 9px; padding: 0 14px; font-size: 16px; outline: none; }
.login-card input:focus { border-color: #2563eb; box-shadow: 0 0 0 3px rgba(37,99,235,.12); }
.login-card button { height: 50px; border: 0; border-radius: 9px; background: #1d4ed8; color: #fff; font-weight: 700; font-size: 15px; cursor: pointer; margin-top: 14px; }
.login-card button:hover { background: #1e40af; }
.login-error { padding: 12px 14px; border-radius: 8px; background: #fef2f2; color: #b91c1c; border: 1px solid #fecaca; margin-bottom: 18px; }
.back-link { color: #475569; text-decoration: none; font-size: 14px; margin-top: 28px; }
.back-link:hover { color: #1d4ed8; }
@media (max-width: 760px) { .login-shell { grid-template-columns: 1fr; } .login-brand-panel { padding: 34px 30px; } .login-brand-panel h1 { font-size: 29px; } .login-kicker { margin-top: 26px; } .login-card { padding: 38px 30px; } }