body {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-card {
    max-width: 420px;
    width: 100%;
    border: none;
    border-radius: 16px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

.login-card .form-control {
    border-radius: 10px;
    border: 2px solid #e0e0e0;
    transition: border-color 0.3s;
}

.login-card .form-control:focus {
    border-color: #198754;
    box-shadow: 0 0 0 0.2rem rgba(25, 135, 84, 0.15);
}

.login-card .btn-success {
    border-radius: 10px;
    font-weight: 600;
    letter-spacing: 0.5px;
    transition: transform 0.2s;
}

.login-card .btn-success:hover {
    transform: translateY(-2px);
}