/* CSS变量 - 主题定义 */
:root {
    /* 明亮模式 */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --border-color: #dee2e6;
    --btn-primary-bg: #007bff;
    --btn-primary-hover: #0056b3;
    --btn-secondary-bg: #6c757d;
    --btn-secondary-hover: #5a6268;
    --btn-success-bg: #28a745;
    --btn-success-hover: #218838;
    --btn-danger-bg: #dc3545;
    --btn-danger-hover: #c82333;
    --shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 4px 8px rgba(0, 0, 0, 0.15);
    --transition: all 0.3s ease;
}

/* 暗黑模式 */
[data-theme="dark"] {
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --bg-tertiary: #2d2d2d;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --border-color: #3d3d3d;
    --btn-primary-bg: #1976d2;
    --btn-primary-hover: #1565c0;
    --btn-secondary-bg: #616161;
    --btn-secondary-hover: #424242;
    --btn-success-bg: #388e3c;
    --btn-success-hover: #2e7d32;
    --btn-danger-bg: #d32f2f;
    --btn-danger-hover: #c62828;
    --shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 4px 8px rgba(0, 0, 0, 0.4);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    transition: var(--transition);
}

/* 容器 */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* 头部 */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

.header h1 {
    font-size: 2rem;
    color: var(--text-primary);
    font-weight: 600;
}

/* 主题切换按钮 */
.theme-switcher {
    display: flex;
    align-items: center;
}

.theme-button {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 50px;
    height: 50px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    box-shadow: var(--shadow);
}

.theme-button:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.light-icon, .dark-icon {
    font-size: 1.2rem;
    transition: var(--transition);
}

.light-icon {
    display: inline;
}

.dark-icon {
    display: none;
}

[data-theme="dark"] .light-icon {
    display: none;
}

[data-theme="dark"] .dark-icon {
    display: inline;
}

/* 主内容 */
.main {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

/* 通用区域样式 */
section {
    background: var(--bg-secondary);
    padding: 25px;
    border-radius: 12px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

section:hover {
    box-shadow: var(--shadow-lg);
}

section h2 {
    margin-bottom: 20px;
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 500;
}

/* 输入区域 */
.input-group {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

#vlessUrl {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
    resize: vertical;
    min-height: 100px;
    transition: var(--transition);
}

#vlessUrl:focus {
    outline: none;
    border-color: var(--btn-primary-bg);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

/* 参数网格布局 */
.params-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.param-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.param-group label {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.param-group input,
.param-group select {
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.param-group input:focus,
.param-group select:focus {
    outline: none;
    border-color: var(--btn-primary-bg);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.param-group input[readonly] {
    background: var(--bg-tertiary);
    cursor: not-allowed;
}

/* 按钮样式 */
.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    text-decoration: none;
    display: inline-block;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-primary {
    background: var(--btn-primary-bg);
    color: white;
}

.btn-primary:hover {
    background: var(--btn-primary-hover);
}

.btn-secondary {
    background: var(--btn-secondary-bg);
    color: white;
}

.btn-secondary:hover {
    background: var(--btn-secondary-hover);
}

.btn-success {
    background: var(--btn-success-bg);
    color: white;
}

.btn-success:hover {
    background: var(--btn-success-hover);
}

.btn-danger {
    background: var(--btn-danger-bg);
    color: white;
}

.btn-danger:hover {
    background: var(--btn-danger-hover);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.2rem;
    width: 100%;
}

/* IP控制区域 */
.ip-controls {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

/* IP表格 */
.ip-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-primary);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.ip-table th,
.ip-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.ip-table th {
    background: var(--bg-tertiary);
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.ip-table td {
    color: var(--text-secondary);
}

.ip-table tr:last-child td {
    border-bottom: none;
}

.ip-table tr:hover {
    background: var(--bg-secondary);
}

.remove-ip-btn {
    background: var(--btn-danger-bg);
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: var(--transition);
}

.remove-ip-btn:hover {
    background: var(--btn-danger-hover);
}

/* 生成区域 */
.generate-section {
    display: flex;
    justify-content: center;
    padding: 30px;
}

/* 结果区域 */
.result-controls {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.result-container {
    margin-top: 20px;
}

#resultLinks {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 0.9rem;
    resize: vertical;
    min-height: 200px;
    font-family: 'Courier New', Courier, monospace;
    line-height: 1.5;
    transition: var(--transition);
}

#resultLinks:focus {
    outline: none;
    border-color: var(--btn-primary-bg);
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

.footer {
  background-color: var(--bg-primary); /* Dark background color */
  color: var(--text-primary);           /* White text color */
  padding: 20px;          /* Some spacing inside the footer */
  text-align: center;     /* Center the content */
  /* Add more styles as needed, e.g., font-size, margin-top, etc. */
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .params-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .header {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .header h1 {
        font-size: 1.5rem;
    }
    
    section {
        padding: 20px;
    }
    
    .params-grid {
        grid-template-columns: 1fr;
    }
    
    .ip-controls {
        flex-direction: column;
    }
    
    .ip-controls .btn {
        width: 100%;
    }
    
    .result-controls {
        flex-direction: column;
    }
    
    .result-controls .btn {
        width: 100%;
    }
    
    .btn-large {
        padding: 14px 28px;
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.3rem;
    }
    
    section h2 {
        font-size: 1.2rem;
    }
    
    .ip-table th,
    .ip-table td {
        padding: 8px 10px;
        font-size: 0.85rem;
    }
}

/* 动画效果 */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

/* 滚动条样式 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}