:root { color-scheme: light; font-family: Inter, ui-sans-serif, system-ui, sans-serif; }
* { box-sizing: border-box; }
html, body { width: 100%; min-height: 100%; }
body { margin: 0; min-height: 100vh; color: #12213f; background: #f4f7fb; overflow-x: hidden; }
.login-shell { width: 100%; min-height: 100vh; display: grid; grid-template-columns: minmax(0, 1.08fr) minmax(420px, .92fr); }
.login-brand { display: flex; flex-direction: column; justify-content: center; padding: clamp(48px, 8vw, 120px); color: #fff; background: linear-gradient(145deg, #071b3b 0%, #0a58ff 100%); }
.brand-mark { display: grid; place-items: center; width: 52px; height: 52px; margin-bottom: 44px; border-radius: 12px; background: #fff; color: #0a58ff; font-weight: 850; }
.eyebrow { margin: 0 0 12px; color: #8eb8ff; font-size: .78rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.login-brand h1 { max-width: 620px; margin: 0 0 20px; font-size: clamp(2.3rem, 5vw, 4.7rem); line-height: 1.02; letter-spacing: -.045em; }
.login-brand > p:last-child { max-width: 560px; margin: 0; color: #d6e5ff; font-size: 1.08rem; line-height: 1.7; }
.login-panel { display: grid; place-items: center; min-width: 0; padding: clamp(24px, 5vw, 72px); }
.login-card { width: min(100%, 430px); padding: 44px; border: 1px solid #e2e8f0; border-radius: 18px; background: #fff; box-shadow: 0 24px 70px rgba(15, 35, 70, .12); }
.login-card .eyebrow { color: #0a58ff; }
h2 { margin: 0; font-size: 1.85rem; letter-spacing: -.025em; }
.intro { margin: 10px 0 30px; color: #64748b; line-height: 1.55; }
label { display: block; margin: 18px 0 8px; font-size: .88rem; font-weight: 700; }
input[type=email], input[type=password] { display: block; width: 100%; height: 48px; padding: 0 14px; border: 1px solid #cbd5e1; border-radius: 9px; background: #fff; color: #12213f; font: inherit; outline: none; appearance: none; }
input:focus { border-color: #0a58ff; box-shadow: 0 0 0 3px rgba(10, 88, 255, .12); }
.remember { display: flex; align-items: center; gap: 9px; margin: 20px 0; color: #475569; font-weight: 500; }
.remember input { width: 17px; height: 17px; accent-color: #0a58ff; }
button { width: 100%; height: 50px; border: 0; border-radius: 9px; color: #fff; background: #0a58ff; font: inherit; font-weight: 800; cursor: pointer; }
button:hover { background: #064bdc; }
.validation { display: block; margin-top: 6px; color: #c62828; font-size: .84rem; }
.validation ul { margin: 0 0 16px; padding-left: 20px; }
.support { margin: 24px 0 0; color: #64748b; font-size: .82rem; text-align: center; }
@media (max-width: 900px) { .login-shell { grid-template-columns: 1fr; } .login-brand { display: none; } .login-panel { min-height: 100vh; padding: 20px; } .login-card { padding: 30px 24px; } }
@media (max-width: 420px) { .login-panel { padding: 0; } .login-card { min-height: 100vh; border: 0; border-radius: 0; box-shadow: none; } }