body, html {
    height: 100%;
    margin: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
}
.split-screen {
    display: flex;
    height: 100vh;
    width: 100vw;
}
.left-side {
    flex: 1;
    background: linear-gradient(135deg, #0d47a1 0%, #00695c 100%);
    color: white;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 50px;
    position: relative;
    overflow: hidden;
}
.left-side::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="100" height="100" opacity="0.05"><path d="M10 10h80v80H10z" fill="none" stroke="%23fff" stroke-width="2"/></svg>');
}
.right-side {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: #ffffff;
    padding: 30px;
}
.login-card {
    width: 100%;
    max-width: 420px;
    padding: 40px;
    background: #ffffff;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.08);
    border: 1px solid #eaeaea;
}
.brand-logo {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.btn-custom {
    background-color: #0d3b66;
    color: white;
    padding: 12px;
    font-weight: 600;
    border-radius: 8px;
    transition: all 0.3s;
}
.btn-custom:hover {
    background-color: #082544;
    color: white;
}
@media (max-width: 768px) {
    .left-side { display: none; }
    .right-side { background: linear-gradient(135deg, #0d47a1 0%, #00695c 100%); }
    .login-card { background: rgba(255,255,255,0.95); }
}