/* 基础样式 */
:root {
    /* 共享变量 */
    --radius: 16px;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);

    /* 基础颜色变量 - 浅色默认 */
    --bg: #f8f9fa;
    --surface: #ffffff;
    --card: #ffffff;
    --border: #e9ecef;
    --text: #212529;
    --text-secondary: #6c757d;
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --primary-light: #7b96ff;
    --secondary: #2ec4b6;
    --accent: #ff5e5b;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    --primary-rgb: 67, 97, 238; /* RGB for focus shadow */
    --gradient-primary: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

/* 紫色主题变量 */
.purple-theme {
    --primary: #8e44ad;
    --primary-dark: #7d3c98;
    --primary-light: #a569bd;
    --secondary: #9b59b6;
    --accent: #e74c3c;
    --primary-rgb: 142, 68, 173; /* RGB for focus shadow */
    --gradient-primary: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

/* 深色主题变量 */
.dark-theme {
    --bg: #121212;
    --surface: #1e1e1e;
    --card: #242424;
    --border: #383838;
    --text: #e0e0e0;
    --text-secondary: #a0a0a0;
    --primary: #7b96ff;
    --primary-dark: #5a78f0;
    --primary-light: #a4b8ff;
    --secondary: #4ecdc4;
    --accent: #ff6b6b;
    --shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
    --primary-rgb: 123, 150, 255; /* RGB for focus shadow */
    --gradient-primary: linear-gradient(135deg, var(--primary), var(--primary-dark));
}

body {
    background-color: var(--bg);
    color: var(--text);
    transition: var(--transition);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

.app-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* 头部样式 */
.app-header {
    background-color: var(--surface);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 10px 0;
    transition: var(--transition);
}

.site-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* 用户控制 */
.user-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--primary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 5px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.theme-toggle:hover {
    background-color: rgba(var(--primary-rgb), 0.1); /* Use primary with alpha for hover */
    transform: rotate(15deg);
}

/* 搜索框 */
.search-container {
    position: relative;
    margin-bottom: 1.5rem;
}

.search-container input {
    background-color: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    padding: 10px 15px 10px 40px;
    width: 100%;
    transition: var(--transition);
    color: var(--text);
}

.search-container input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.2);
}

.search-icon {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

/* 主内容区 */
.app-content {
    flex: 1;
    padding: 25px 0;
}

/* 网站卡片样式 */
.category-section {
    margin-bottom: 2.5rem;
}

.category-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    position: relative;
}

.category-title {
    font-size: 1.5rem;
    padding-bottom: 0.5rem;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
    position: relative;
    margin-bottom: 0;
}

.category-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--gradient-primary);
    border-radius: 3px;
}

.btn-add-site {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--primary);
    border-radius: 20px;
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-add-site:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(var(--primary-rgb), 0.2);
}

.site-card {
    background-color: var(--card);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: var(--transition);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.dark-theme .site-card {
    background-color: var(--card);
    border-color: var(--border);
    box-shadow: var(--shadow);
}

.site-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(var(--primary-rgb), 0.2);
    border-color: var(--primary-light);
}

.site-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 0;
    background: var(--gradient-primary);
    transition: var(--transition);
}

.site-card:hover::before {
    height: 100%;
}

.dark-theme .site-card:hover {
    box-shadow: 0 8px 25px rgba(var(--primary-rgb), 0.25);
    border-color: var(--primary);
}

.site-header {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    margin-bottom: 0.8rem;
}

.site-icon {
    width: 32px;
    height: 32px;
    object-fit: contain;
    border-radius: 8px;
    background-color: white;
    padding: 2px;
    transition: var(--transition);
}

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

/* 默认站点图标样式 */
.default-site-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    flex-shrink: 0;
}

.default-site-icon i {
    font-size: 18px;
}

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

.site-card-title {
    font-weight: 600;
    font-size: 1.1rem;
    margin-left: 0.75rem;
    color: var(--text);
    transition: var(--transition);
}

.site-card:hover .site-card-title {
    color: var(--primary);
}

.site-card-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
    flex: 1;
    line-height: 1.5;
    padding-left: 2px;
}

/* 站点卡片操作按钮 */
.site-card-actions {
    position: absolute;
    top: 10px;
    right: 10px;
    display: flex;
    gap: 5px;
    z-index: 10;
    opacity: 0;
    transition: var(--transition);
}

.site-card:hover .site-card-actions {
    opacity: 1;
}

.btn-card-edit {
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--primary);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    padding: 0;
    font-size: 14px;
}

.btn-card-edit:hover {
    background: var(--primary);
    color: white;
    transform: rotate(15deg);
}

/* 站点卡片底部 */
.site-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: auto;
}

.site-card-link {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    transition: var(--transition);
    padding: 0.5rem 0.75rem;
    border-radius: calc(var(--radius) / 2);
    background-color: rgba(var(--primary-rgb), 0.08);
    width: fit-content;
}

.site-card-link:hover {
    color: var(--primary-dark);
    background-color: rgba(var(--primary-rgb), 0.15);
    transform: translateX(4px);
}

.btn-quick-edit {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 0.85rem;
    padding: 0.4rem 0.6rem;
    border-radius: calc(var(--radius) / 2);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.btn-quick-edit:hover {
    color: var(--primary);
    background-color: rgba(var(--primary-rgb), 0.08);
}

/* 分类导航栏 */
.nav-categories {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 2rem;
    padding: 0.5rem 0;
}

.nav-category-item {
    background-color: var(--surface);
    border-radius: 24px;
    padding: 8px 18px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.dark-theme .nav-category-item {
    background-color: var(--surface);
    border-color: var(--border);
    color: var(--text-secondary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.nav-category-item:hover {
    background-color: rgba(var(--primary-rgb), 0.1);
    color: var(--primary);
    border-color: rgba(var(--primary-rgb), 0.3);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.15);
}

.dark-theme .nav-category-item:hover {
    background-color: rgba(var(--primary-rgb), 0.2);
    color: var(--primary);
    border-color: rgba(var(--primary-rgb), 0.4);
    box-shadow: 0 4px 12px rgba(var(--primary-rgb), 0.25);
}

.nav-category-item.active {
    background: var(--gradient-primary);
    color: white;
    border-color: var(--primary);
    font-weight: 500;
    box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.3);
}

.dark-theme .nav-category-item.active {
    background: var(--gradient-primary);
    color: white;
    border-color: var(--primary);
    font-weight: 500;
    box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.4);
}

/* 底部样式 */
.app-footer {
    background-color: var(--surface);
    box-shadow: var(--shadow);
    transition: var(--transition);
    margin-top: auto;
}

/* 状态组件 */
.status-widgets {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.25rem;
    margin-bottom: 2.5rem;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

.widget {
    background-color: var(--card);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
    flex: 1;
    min-width: 250px;
    max-width: 350px;
    position: relative;
    overflow: hidden;
}

.widget:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 35px rgba(var(--primary-rgb), 0.1);
}

.dark-theme .widget {
    background-color: var(--card);
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.widget-quote {
    border-left: none;
    position: relative;
}

.widget-quote::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background: var(--gradient-primary);
    border-radius: 0 2px 2px 0;
}

.widget-date, .widget-time {
    text-align: center;
}

.widget-date::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 4px;
    width: 100%;
    background: var(--gradient-primary);
    border-radius: 0 0 2px 2px;
}

.widget-time::before {
    content: '';
    position: absolute;
    right: 0;
    top: 0;
    height: 100%;
    width: 4px;
    background: var(--gradient-primary);
    border-radius: 2px 0 0 2px;
}

.time-display {
    font-size: 2.25rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-top: 0.5rem;
}

/* 模态框样式 */
.modal-content {
    background-color: var(--surface);
    border-radius: var(--radius);
    border: none;
    box-shadow: 0 5px 25px var(--shadow);
}

.dark-theme .modal-content {
    background-color: var(--surface);
    box-shadow: var(--shadow);
}

.modal-header {
    border-bottom: 1px solid var(--border);
    padding: 1rem;
}

.modal-title {
    color: var(--primary);
    font-weight: 600;
}

.modal-footer {
    border-top: 1px solid var(--border);
    padding: 1rem;
}

/* 按钮样式 */
.btn {
    border-radius: calc(var(--radius) / 2);
    transition: var(--transition);
    font-weight: 500;
    padding: 0.5rem 1.25rem;
}

.btn-primary {
    background: var(--gradient-primary);
    border: none;
    color: white;
    box-shadow: 0 4px 10px rgba(var(--primary-rgb), 0.25);
}

.btn-primary:hover, .btn-primary:focus {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(var(--primary-rgb), 0.35);
}

.btn-outline-primary {
    color: var(--primary);
    border-color: var(--primary);
    background: transparent;
}

.btn-outline-primary:hover {
    background-color: var(--primary);
    border-color: var(--primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(var(--primary-rgb), 0.25);
}

/* 表单样式 */
.form-control, .form-select {
    background-color: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: var(--transition);
    color: var(--text);
}

.dark-theme .form-control,
.dark-theme .form-select {
    background-color: var(--surface);
    border-color: var(--border);
    color: var(--text);
}

.form-control:focus, .form-select:focus {
    box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.2);
    border-color: var(--primary);
}

/* 导航选项卡 */
.nav-tabs {
    border-bottom: 1px solid var(--border);
}

.nav-tabs .nav-link {
    color: var(--text-secondary);
    border: none;
    padding: 0.5rem 1rem;
    margin-right: 0.5rem;
    border-radius: var(--radius) var(--radius) 0 0;
}

.dark-theme .nav-tabs .nav-link {
     color: var(--text-secondary);
}

.nav-tabs .nav-link:hover {
    color: var(--primary);
}

.nav-tabs .nav-link.active {
    color: var(--primary);
    background-color: transparent;
    border-bottom: 2px solid var(--primary);
}

.dark-theme .nav-tabs .nav-link.active {
     color: var(--primary);
     border-color: var(--primary);
}

/* 列表组样式 */
.list-group-item {
    background-color: var(--surface);
    border: 1px solid var(--border);
    margin-bottom: 0.5rem;
    border-radius: var(--radius) !important;
    transition: var(--transition);
    color: var(--text);
}

.dark-theme .list-group-item {
    background-color: var(--surface);
    border-color: var(--border);
    color: var(--text);
}

.list-group-item:hover {
    transform: translateX(5px);
    background-color: var(--card);
}

/* 消息提示 */
.toast {
    background-color: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.dark-theme .toast {
    background-color: var(--surface);
    box-shadow: var(--shadow);
}

.toast-header {
    background-color: transparent;
    border-bottom: 1px solid var(--border);
    color: var(--text);
}

.dark-theme .toast-header {
     border-color: var(--border);
     color: var(--text);
}

/* 拖放排序相关样式 */
.drag-handle, .drag-handle-site, .drag-indicator {
    cursor: grab;
    color: var(--text-secondary);
    transition: var(--transition);
}

.drag-handle:hover, .drag-handle-site:hover, .drag-indicator:hover {
    color: var(--primary);
}

/* 保存排序按钮 */
.btn-save-order {
    position: fixed;
    bottom: 80px;
    right: 30px;
    z-index: 1000;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 500;
    box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.3);
    border-radius: 50px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    animation: fadeInUp 0.3s ease-out;
}

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

.drag-handle-site {
    position: absolute;
    top: 10px;
    right: 60px;
    opacity: 0.5;
    z-index: 10;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: grab;
    color: var(--text-secondary);
    transition: var(--transition);
    background-color: var(--surface);
    border-radius: 4px;
}

.site-card:hover .drag-handle-site {
    opacity: 1;
    color: var(--primary);
}

.sortable-ghost {
    opacity: 0.5;
    background-color: var(--primary-light) !important;
}

.sortable-chosen {
    box-shadow: 0 0 15px rgba(var(--primary-rgb), 0.4) !important;
}

.sortable-drag {
    opacity: 0.9;
    transform: rotate(2deg);
}

/* 响应式调整 */
@media (max-width: 768px) {
    .status-widgets {
        flex-direction: column;
        align-items: center;
    }

    .site-title {
        font-size: 1.5rem;
    }

    .widget {
        min-width: 100%;
        max-width: 100%;
    }

    .user-controls {
        gap: 0.3rem;
    }

    .user-controls .btn-sm {
        padding: 0.25rem 0.5rem;
        font-size: 0.75rem;
    }
}

@media (max-width: 576px) {
    .site-title {
        font-size: 1.1rem;
    }

    .user-controls .btn-sm {
        padding: 0.2rem 0.4rem;
        font-size: 0.7rem;
    }

    .user-controls .btn-sm i {
        margin-right: 0;
    }

    .user-controls .btn-sm span {
        display: none;
    }
}