/* 全局样式重置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f5f5;
    color: #333;
    line-height: 1.6;
}

/* 应用容器 */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* 顶部标题栏 */
.header {
    background: linear-gradient(135deg, #1976D2, #1565C0);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

.device-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.device-label {
    opacity: 0.9;
}

.device-ip {
    font-weight: 500;
    background: rgba(255, 255, 255, 0.2);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    transition: all 0.3s ease;
}

.device-ip.clickable {
    cursor: pointer;
    user-select: none;
}

.device-ip.clickable:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.connection-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #f44336;
    transition: background-color 0.3s ease;
}

.connection-status.connected {
    background-color: #4CAF50;
}

/* 状态消息 */
.status-message {
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 500;
    animation: slideDown 0.3s ease;
}

.status-message.info {
    background-color: #d6edff;
    color: #0984e3;
    border-left: 4px solid #61afff;
}

.status-message.success {
    background-color: #d4edda;
    color: #155724;
    border-left: 4px solid #28a745;
}

.status-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border-left: 4px solid #dc3545;
}

.close-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s ease;
}

.close-btn:hover {
    opacity: 1;
}

/* 主内容区域 */
.main-content {
    flex: 1;
    padding: 2rem;
    display: flex;
    justify-content: center;
}

/* 配置卡片 */
.config-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 800px;
    overflow: hidden;
}

.card-header {
    background: #f8f9fa;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid #e9ecef;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #495057;
    margin: 0;
}

/* 表单样式 */
.config-form {
    padding: 2rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-label {
    font-weight: 500;
    color: #495057;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.required {
    color: #dc3545;
}

.form-input {
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background-color: #fff;
}

.form-input:focus {
    outline: none;
    border-color: #1976D2;
    box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.1);
}

.form-input.error {
    border-color: #dc3545;
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.password-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.password-input {
    padding-right: 3rem !important;
    flex: 1;
}

.password-toggle {
    position: absolute;
    right: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    opacity: 0.6;
    transition: opacity 0.2s ease;
    z-index: 1;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.password-toggle:hover {
    opacity: 1;
}

.password-toggle:focus {
    outline: none;
}

.error-message {
    color: #dc3545;
    font-size: 0.8rem;
    margin-top: 0.25rem;
    font-weight: 500;
}

/* 保存选项 */
.save-options {
    margin: 1.5rem 0;
    padding: 1rem;
    background-color: #f8f9fa;
    border-radius: 8px;
    border-left: 4px solid #FF9800;
}

.checkbox-label {
    display: flex;
    align-items: center;
    cursor: pointer;
    font-weight: 500;
    color: #495057;
}

.checkbox-input {
    margin-right: 0.5rem;
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.checkbox-text {
    user-select: none;
}

.save-options-note {
    margin-top: 0.5rem;
    padding-left: 1.5rem;
}

.save-options-note small {
    color: #6c757d;
    font-style: italic;
    line-height: 1.4;
}

/* 操作按钮 */
.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    padding-top: 1rem;
    border-top: 1px solid #e9ecef;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    min-width: 120px;
    justify-content: center;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background-color: #1976D2;
    color: white;
}

.btn-primary:hover:not(:disabled) {
    background-color: #1565C0;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(25, 118, 210, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: #6c757d;
    border: 2px solid #6c757d;
}

.btn-secondary:hover:not(:disabled) {
    background-color: #6c757d;
    color: white;
}

.btn-tertiary {
    background-color: transparent;
    color: #FF9800;
    border: 2px solid #FF9800;
}

.btn-tertiary:hover:not(:disabled) {
    background-color: #FF9800;
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 152, 0, 0.3);
}

/* 加载动画 */
.loading-spinner {
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

/* 模态窗口样式 */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    width: 90%;
    max-width: 500px;
    animation: slideUp 0.3s ease;
}

.modal-header {
    padding: 1.5rem 2rem 1rem;
    border-bottom: 1px solid #e9ecef;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: #495057;
    margin: 0;
}

.modal-body {
    padding: 1.5rem 2rem;
}

.modal-description {
    color: #6c757d;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.ip-input-group {
    display: flex;
    flex-direction: column;
}

.ip-input-label {
    font-weight: 500;
    color: #495057;
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}

.ip-input {
    padding: 0.75rem;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background-color: #fff;
}

.ip-input:focus {
    outline: none;
    border-color: #1976D2;
    box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.1);
}

.ip-input.error {
    border-color: #dc3545;
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.ip-input-error {
    color: #dc3545;
    font-size: 0.8rem;
    margin-top: 0.25rem;
    font-weight: 500;
}

.modal-footer {
    padding: 1rem 2rem 1.5rem;
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .config-form {
        padding: 1rem;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .header-content {
        padding: 0 1rem;
    }
    
    .card-header {
        padding: 1rem;
    }
    
    .device-info {
        /* flex-direction: column; */
        gap: 0.25rem;
    }
}