/* 推广用户后台登录页面样式 */
body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-card {
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    padding: 40px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: slideUp 0.6s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.3);
}

.logo i {
    font-size: 2rem;
    color: white;
}

.login-header h2 {
    color: #333;
    font-weight: 600;
    margin-bottom: 10px;
}

.login-header p {
    color: #666;
    font-size: 0.9rem;
}

.login-form {
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 25px;
}

.form-label {
    color: #555;
    font-weight: 500;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.form-label i {
    color: #667eea;
    font-size: 0.9rem;
}

.form-control {
    border: 2px solid #e1e5e9;
    border-radius: 12px;
    padding: 12px 16px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f8f9fa;
}

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

.form-control.is-invalid {
    border-color: #dc3545;
    background: #fff5f5;
}

.btn-login {
    width: 100%;
    background: linear-gradient(135deg, #667eea, #764ba2);
    border: none;
    border-radius: 12px;
    padding: 14px;
    font-size: 1.1rem;
    font-weight: 600;
    color: white;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.4);
}

.btn-login:active {
    transform: translateY(0);
}

.btn-login:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.btn-login i {
    margin-right: 8px;
}

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

.login-footer {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #e1e5e9;
}

.login-footer p {
    margin: 0;
    font-size: 0.85rem;
}

.login-footer i {
    color: #667eea;
    margin-right: 5px;
}

/* 响应式设计 */
@media (max-width: 480px) {
    .login-container {
        padding: 15px;
    }
    
    .login-card {
        padding: 30px 25px;
    }
    
    .logo {
        width: 60px;
        height: 60px;
    }
    
    .logo i {
        font-size: 1.5rem;
    }
}

/* 加载动画 */
.btn-login.loading .btn-text {
    opacity: 0;
}

.btn-login.loading .spinner-border-sm {
    display: inline-block !important;
}

/* 错误提示样式 */
.invalid-feedback {
    display: block;
    color: #dc3545;
    font-size: 0.875rem;
    margin-top: 5px;
}

/* 成功提示样式 */
.valid-feedback {
    display: block;
    color: #28a745;
    font-size: 0.875rem;
    margin-top: 5px;
}

/* 模态框样式优化 */
.modal-content {
    border-radius: 15px;
    border: none;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.modal-header {
    border-bottom: 1px solid #e1e5e9;
    padding: 20px 25px 15px;
}

.modal-body {
    padding: 20px 25px;
}

.modal-footer {
    border-top: 1px solid #e1e5e9;
    padding: 15px 25px 20px;
}

/* 输入框动画效果 */
.form-control {
    position: relative;
}

.form-control:focus + .form-label {
    color: #667eea;
}

/* 按钮点击效果 */
.btn-login:focus {
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

/* 卡片悬停效果 */
.login-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}