/* 登入頁面樣式 */

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

.login-box {
    width: 100%;
    max-width: 480px;
}

.login-header h1 {
    color: white;
    font-size: 1.8rem;
    font-weight: 600;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.2);
}

.login-container .card {
    border: none;
    border-radius: 15px;
}

.login-container .card-body {
    background: white;
    border-radius: 15px;
}

.login-container .form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.login-container .btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    font-weight: 600;
    transition: transform 0.2s;
}

.login-container .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.login-container .btn-primary:disabled {
    opacity: 0.7;
    transform: none;
}

.quick-login-section {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 15px;
}

.quick-login-btn {
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    margin: 0.25rem;
    border-radius: 20px;
    transition: all 0.2s;
}

.quick-login-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
}

.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.2em;
}