/* ==================== 全局样式 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

:root {
    /* 主色调 */
    --primary-color: #2196F3;
    --primary-dark: #1976D2;
    --primary-light: #BBDEFB;

    /* 背景色 */
    --bg-primary: #FAFAFA;
    --bg-secondary: #FFFFFF;
    --bg-hover: #F5F5F5;

    /* 文字色 */
    --text-primary: #212121;
    --text-secondary: #757575;
    --text-hint: #9E9E9E;

    /* 边框色 */
    --border-color: #E0E0E0;
    --divider-color: #EEEEEE;

    /* 功能色 */
    --success-color: #4CAF50;
    --warning-color: #FF9800;
    --error-color: #F44336;

    /* 阴影 */
    --shadow-1: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-2: 0 4px 8px rgba(0,0,0,0.12);
    --shadow-3: 0 8px 16px rgba(0,0,0,0.15);
    --shadow-fab: 0 6px 12px rgba(33,150,243,0.3);

    /* 圆角 */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;

    /* 间距 */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
}

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-primary);
    background: var(--bg-primary);
}

#app {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
}

/* ==================== 工具栏 ==================== */
.toolbar {
    display: flex;
    align-items: center;
    height: 56px;
    padding: 0 var(--spacing-md);
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-2);
    z-index: 100;
}

.toolbar-title {
    flex: 1;
    font-size: 18px;
    font-weight: 500;
    margin-left: var(--spacing-sm);
}

.toolbar-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* ==================== 按钮样式 ==================== */
button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
    outline: none;
}

.btn-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 20px;
    color: white;
    transition: background 0.2s;
}

.btn-icon:active {
    background: rgba(255, 255, 255, 0.2);
}

.btn-primary {
    padding: 8px 16px;
    background: white;
    color: var(--primary-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    transition: background 0.2s;
}

.btn-primary:active {
    background: rgba(255, 255, 255, 0.9);
}

.btn-secondary {
    padding: 8px 16px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    transition: background 0.2s;
}

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

.btn-small {
    padding: 4px 8px;
    font-size: 18px;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: background 0.2s;
}

.btn-small:active {
    background: var(--bg-hover);
}

/* ==================== 项目列表页面 ==================== */
/* 下拉刷新 */
.pull-refresh {
    position: absolute;
    top: -60px;
    left: 0;
    right: 0;
    height: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    transition: transform 0.3s ease;
    z-index: 50;
}

.pull-refresh-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease;
    color: var(--text-secondary);
}

.pull-refresh-icon svg {
    width: 24px;
    height: 24px;
}

.pull-refresh.refreshing .pull-refresh-icon {
    animation: spin 1s linear infinite;
}

.pull-refresh-text {
    font-size: 12px;
    color: var(--text-hint);
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

.project-list-container {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    padding-bottom: 80px; /* 为 FAB 留出空间 */
    position: relative;
}

.project-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: var(--spacing-md);
}

/* 项目卡片 */
.project-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.project-card:active {
    transform: translateY(2px);
}

.project-card-icon {
    font-size: 36px;
    flex-shrink: 0;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.project-card-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    padding-top: 4px;
}

.project-card-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 1.4;
}

.project-card-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.project-card-package {
    font-size: 12px;
    color: #616161;
    font-family: 'Courier New', monospace;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    min-width: 0;
}

.project-card-time {
    font-size: 11px;
    color: var(--text-hint);
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.project-card-time::before {
    content: '🕒';
    font-size: 12px;
}

/* ==================== FAB 按钮 ==================== */
.fab {
    position: fixed;
    right: 16px;
    bottom: 16px;
    left: auto;
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                background 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 99;
    overflow: hidden;
}

.fab svg {
    width: 24px;
    height: 24px;
}

.fab::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.fab:active::before {
    width: 200%;
    height: 200%;
}

.fab:active {
    transform: scale(0.92);
}

/* ==================== 空状态 ==================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 64px;
    margin-bottom: var(--spacing-md);
    opacity: 0.5;
}

.empty-text {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.empty-hint {
    font-size: 14px;
    color: var(--text-hint);
}

/* ==================== 右键菜单 ==================== */
.context-menu {
    position: fixed;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-3);
    min-width: 180px;
    padding: var(--spacing-xs) 0;
    z-index: 1000;
}

.context-menu.hidden {
    display: none;
}

.menu-item {
    padding: 12px var(--spacing-md);
    cursor: pointer;
    transition: background 0.2s;
    font-size: 14px;
    color: var(--text-primary);
}

.menu-item:active {
    background: var(--bg-hover);
}

.menu-item.danger {
    color: var(--error-color);
}

.menu-divider {
    height: 1px;
    background: var(--divider-color);
    margin: var(--spacing-xs) 0;
}

/* ==================== 对话框 ==================== */
.dialog-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
}

.dialog-overlay.hidden {
    display: none;
}

.dialog {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    width: 90%;
    max-width: 400px;
    box-shadow: var(--shadow-3);
}

.dialog-header {
    padding: var(--spacing-lg) var(--spacing-lg) var(--spacing-md);
    font-size: 18px;
    font-weight: 500;
    color: var(--text-primary);
}

.dialog-body {
    padding: 0 var(--spacing-lg) var(--spacing-lg);
}

.dialog-input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

.dialog-input:focus {
    border-color: var(--primary-color);
}

.dialog-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg) var(--spacing-lg);
}

/* ==================== 加载状态 ==================== */
.loading {
    text-align: center;
    padding: var(--spacing-lg);
    color: var(--text-hint);
}

/* ==================== 响应式适配 ==================== */
@media (min-width: 600px) {
    .project-list {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    }
}

@media (min-width: 960px) {
    .project-list {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    }
}