body {
    background-color: #F8F9FA;
    font-family: 'Segoe UI', system-ui, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}
.auth-card {
    background: #FFFFFF;
    width: 100%;
    max-width: 380px;
    padding: 32px;
    border-radius: 16px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
    text-align: center;
}
.auth-logo {
    width: 80px;
    height: 80px;
    margin-bottom: 16px;
}
.auth-card h2 {
    color: #003366;
    margin-bottom: 24px;
    font-weight: 800;
}
.input-group {
    margin-bottom: 16px;
    text-align: left;
}
.input-group label {
    display: block;
    font-size: 13px;
    color: #666;
    margin-bottom: 6px;
    font-weight: 600;
}
.input-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #E5E9F0;
    border-radius: 8px;
    box-sizing: border-box;
    font-size: 15px;
}
.input-group input:focus {
    border-color: #003366;
    outline: none;
}
.auth-btn {
    background-color: #003366;
    color: white;
    width: 100%;
    padding: 14px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    margin-top: 8px;
}
.auth-btn:active { background-color: #002244; }
.auth-switch {
    margin-top: 16px;
    font-size: 14px;
    color: #555;
}
.auth-switch a { color: #D47A13; text-decoration: none; font-weight: bold; }