/* ==================== 基础样式 ==================== */
:root {
    /* 浅色主题变量 */
    --bg-color: #f5f5f7;
    --text-color: #333;
    --card-bg: #fff;
    --border-color: #e0e0e0;
    --primary-color: #4285f4;
    --hover-color: #f0f0f0;
    --admin-color: #ff5722;
    --open-reg-color: #4caf50;
    --delete-color: #f44336;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --card-radius: 16px;
    --mobile-menu-bg: rgba(255, 255, 255, 0.95);
    --mobile-menu-shadow: rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] {
    /* 深色主题变量 */
    --bg-color: #121212;
    --text-color: #e0e0e0;
    --card-bg: #1e1e1e;
    --border-color: #333;
    --primary-color: #8ab4f8;
    --hover-color: #2a2a2a;
    --admin-color: #ff7043;
    --open-reg-color: #81c784;
    --delete-color: #e57373;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --mobile-menu-bg: rgba(30, 30, 30, 0.98);
    --mobile-menu-shadow: rgba(0, 0, 0, 0.5);
}

* {
    /* 全局重置 */
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'PingFang SC', 'Microsoft YaHei', sans-serif;
}

body {
    /* 页面基础样式 */
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
    line-height: 1.6;
    min-height: 100vh;
}

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

/* ==================== 密码验证模块 ==================== */
.password-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.password-form {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: var(--card-radius);
    box-shadow: 0 4px 20px var(--shadow-color);
    width: 90%;
    max-width: 400px;
    text-align: center;
    animation: fadeIn 0.3s;
}

.password-form h1 {
    margin-bottom: 20px;
    color: var(--primary-color);
    font-size: 28px;
}

.password-form p {
    margin-bottom: 20px;
    color: var(--text-color);
}

.password-form input {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--card-bg);
    color: var(--text-color);
    font-size: 16px;
    transition: border-color 0.3s;
}

.password-form input:focus {
    border-color: var(--primary-color);
    outline: none;
}

.password-form button {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
}

.password-form button:hover {
    background-color: #3367d6;
}

.authenticated .password-overlay {
    display: none;
}

/* ==================== 顶部导航栏模块 ==================== */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
    margin-bottom: 25px;
    position: relative;
    flex-wrap: wrap;
    gap: 15px;
}

/* Logo区域 */
.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 18px;
}

.logo-text {
    font-size: 20px;
    font-weight: bold;
    color: var(--primary-color);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--hover-color);
    color: var(--text-color);
    border: none;
    cursor: pointer;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    transition: all 0.3s;
}

.mobile-menu-btn:hover {
    background-color: var(--primary-color);
    color: white;
}

/* 移动端菜单 */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 300px;
    height: 100vh;
    background-color: var(--mobile-menu-bg);
    box-shadow: -5px 0 15px var(--mobile-menu-shadow);
    z-index: 1001;
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
}

.mobile-menu.show {
    right: 0;
}

.mobile-menu-content {
    padding: 20px;
    overflow-y: auto;
    height: 100%;
}

.mobile-menu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.close-mobile-menu {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--text-color);
    cursor: pointer;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.3s;
}

.close-mobile-menu:hover {
    background-color: var(--hover-color);
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.mobile-nav-links a {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    border-radius: 8px;
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.3s;
    gap: 10px;
}

.mobile-nav-links a:hover {
    background-color: var(--hover-color);
    color: var(--primary-color);
}

.mobile-nav-links a i {
    width: 20px;
    text-align: center;
}

/* 移动端管理员区域 */
.mobile-admin-section {
    margin-top: 20px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.mobile-admin-btn, .mobile-admin-action {
    width: 100%;
    padding: 12px 15px;
    border-radius: 8px;
    border: none;
    background-color: var(--admin-color);
    color: white;
    cursor: pointer;
    transition: background-color 0.3s;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    margin-bottom: 10px;
}

.mobile-admin-btn:hover, .mobile-admin-action:hover {
    background-color: #e64a19;
}

.mobile-admin-action {
    background-color: var(--primary-color);
}

.mobile-admin-action:hover {
    background-color: #3367d6;
}

/* 导航链接 */
.nav-links {
    display: flex;
    gap: 15px;
    margin: 0 20px;
    flex-shrink: 0;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 20px;
    transition: all 0.3s;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-links a:hover {
    background-color: var(--hover-color);
    color: var(--primary-color);
}

.nav-links a i {
    font-size: 14px;
}

/* 搜索框 */
.search-box {
    display: flex;
    align-items: center;
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 400px;
}

#search-input {
    flex: 1;
    padding: 10px 15px;
    border: none;
    outline: none;
    font-size: 14px;
    color: #333;
}

#search-input::placeholder {
    color: #999;
}

#search-btn {
    padding: 11px 15px;
    background: #4285f4;
    color: white;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s;
    font-weight: 500;
}

#search-btn:hover {
    background: #3367d6;
}

#search-btn i {
    margin-right: 6px;
    font-size: 14px;
}

/* 控制按钮区域 */
.header-controls {
    display: flex;
    align-items: center;
    gap: 15px;
    flex-shrink: 0;
    position: relative;
}

.theme-toggle {
    background: none;
    border: none;
    font-size: 18px;
    cursor: pointer;
    color: var(--text-color);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.3s;
}

.theme-toggle:hover {
    background-color: var(--hover-color);
}

.admin-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    min-width: auto;
    background-color: var(--admin-color);
    color: white;
    border: none;
    cursor: pointer;
    transition: background-color 0.3s;
    font-size: 16px;
}

.admin-btn:hover {
    background-color: #e64a19;
}

/* 管理员下拉菜单 */
.admin-dropdown {
    position: absolute;
    top: 50px;
    right: 0;
    background-color: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 4px 20px var(--shadow-color);
    padding: 10px 0;
    width: 200px;
    z-index: 100;
    display: none;
    overflow: hidden;
}

.admin-dropdown.show {
    display: block;
    animation: fadeIn 0.2s;
}

.admin-dropdown-item {
    padding: 10px 20px;
    color: var(--text-color);
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 10px;
}

.admin-dropdown-item:hover {
    background-color: var(--hover-color);
    color: var(--primary-color);
}

.admin-dropdown-item i {
    width: 20px;
    text-align: center;
}

.admin-dropdown-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 5px 0;
}

.admin-dropdown-item.add-site {
    color: var(--primary-color);
}

/* ==================== 站点卡片模块 ==================== */
.sites-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.site-card {
    background-color: var(--card-bg);
    border-radius: var(--card-radius);
    padding: 15px;
    box-shadow: 0 3px 10px var(--shadow-color);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 1px solid var(--border-color);
}

.site-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(66, 133, 244, 0.2);
    border-color: var(--primary-color);
}

.site-icon-container {
    position: relative;
    margin-bottom: 10px;
}

.site-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--primary-color);
    transition: transform 0.3s;
    background-color: white;
    padding: 5px;
}

.site-card:hover .site-icon {
    transform: scale(1.1);
}

.text-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 22px;
    color: white;
    border: 2px solid var(--primary-color);
    background-color: var(--primary-color);
}

.site-name {
    font-weight: bold;
    margin-bottom: 5px;
    font-size: 15px;
    color: var(--text-color);
    max-width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.site-card a {
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

/* 卡片控制按钮 */
.card-controls {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
}

.card-control-btn {
    position: absolute;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-size: 12px;
    transition: all 0.3s;
    pointer-events: auto;
    background-color: rgba(0, 0, 0, 0.7);
    color: white;
    border: none;
}

.card-control-btn:hover {
    transform: scale(1.2);
}

.edit-btn {
    top: 8px;
    left: 8px;
}

.delete-btn {
    top: 8px;
    right: 8px;
    background-color: var(--delete-color);
}

.pin-btn {
    bottom: 8px;
    left: 8px;
}

.open-reg-btn {
    bottom: 8px;
    right: 8px;
}

.open-reg-btn.active {
    background-color: var(--open-reg-color);
}

.open-reg-indicator {
    position: absolute;
    top: 8px;
    left: 8px;
    width: 12px;
    height: 12px;
    background-color: var(--open-reg-color);
    border-radius: 50%;
    display: none;
    border: 2px solid var(--card-bg);
    z-index: 1;
}

.open-reg-indicator.active {
    display: block;
}

/* ==================== 模态框模块 ==================== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s;
}

.modal-content {
    background-color: var(--card-bg);
    padding: 25px;
    border-radius: var(--card-radius);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 5px 30px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.3s;
    border: 1px solid var(--border-color);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border-color);
}

.modal-title {
    font-size: 20px;
    font-weight: bold;
    color: var(--primary-color);
}

.close-btn {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-color);
    transition: color 0.3s;
}

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

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--card-bg);
    color: var(--text-color);
    font-size: 15px;
    transition: all 0.3s;
}

.form-group input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(66, 133, 244, 0.2);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 15px;
    margin-top: 25px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.modal-actions button {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.btn-primary:hover {
    background-color: #3367d6;
}

.btn-secondary {
    background-color: var(--border-color);
    color: var(--text-color);
}

.btn-secondary:hover {
    background-color: #d0d0d0;
}

.fetch-icon-btn {
    padding: 8px 15px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    transition: background-color 0.3s;
    margin-top: 5px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.fetch-icon-btn:hover {
    background-color: #3367d6;
}

/* ==================== 浮动按钮模块 ==================== */
.floating-buttons {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 999;
}

.join-group {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    border: none;
    font-size: 20px;
    cursor: pointer;
    box-shadow: 0 4px 15px rgba(66, 133, 244, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
}

.join-group:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(66, 133, 244, 0.4);
}

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

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 992px) {
    .sites-grid {
        grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    }
    
    .header {
        flex-direction: row;
        align-items: center;
    }
    
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .search-box {
        order: 3;
        width: 100%;
        max-width: 100%;
        margin-top: 15px;
    }
    
    .header-controls {
        margin-left: auto;
        margin-top: 0;
    }
}

@media (max-width: 768px) {
    .sites-grid {
        grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
        gap: 15px;
    }
    
    .site-icon, .text-icon {
        width: 50px;
        height: 50px;
        font-size: 18px;
    }
    
    .site-name {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .sites-grid {
        grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
        gap: 12px;
    }
    
    .site-icon, .text-icon {
        width: 45px;
        height: 45px;
        font-size: 16px;
    }
    
    .site-name {
        font-size: 12px;
    }
}

.password-overlay .qr-help {
    margin-top: 20px;
    text-align: center;
}

.password-overlay .qr-image {
    width: 150px;
    height: 150px;
    display: block;
    margin: 0 auto;
    border: 1px solid #ddd;
    padding: 5px;
    background: white;
}

.password-overlay .qr-text {
    font-size: 13px;
    color: #888;
    margin-top: 10px;
    line-height: 1.4;
}