* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
    --primary: #10b981;
    --primary-light: #d1fae5;
    --primary-dark: #059669;
    --bg: #f8fafc;
    --surface: #ffffff;
    --text: #1e293b;
    --text-secondary: #64748b;
    --border: #e2e8f0;
    --shadow: 0 1px 3px rgba(0,0,0,0.08);
    --radius: 12px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
}

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

/* 侧边栏 */
.sidebar {
    width: 240px;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
}

.sidebar-header {
    padding: 20px 16px;
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 16px;
    color: var(--text);
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
}

.sidebar-nav {
    flex: 1;
    padding: 12px 8px;
    overflow-y: auto;
}

.section-title {
    display: block;
    font-size: 11px;
    text-transform: uppercase;
    color: var(--text-secondary);
    padding: 12px 12px 6px;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.15s;
    position: relative;
}

.nav-item:hover {
    background: var(--primary-light);
    color: var(--primary-dark);
}

.nav-item.active {
    background: var(--primary-light);
    color: var(--primary-dark);
    font-weight: 500;
}

.nav-icon {
    font-size: 16px;
    width: 20px;
    text-align: center;
}

.nav-badge {
    margin-left: auto;
    background: var(--primary);
    color: white;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 10px;
    font-weight: 600;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
    text-align: center;
    color: var(--text-secondary);
    font-size: 13px;
}
.sidebar-footer .date-text {
    display: block;
    margin-bottom: 8px;
    opacity: 0.7;
}
.sidebar-footer .user-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}
.sidebar-footer .user-name {
    color: var(--text);
    font-weight: 500;
    font-size: 14px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sidebar-footer .logout-link {
    color: var(--primary);
    text-decoration: none;
    font-size: 13px;
    padding: 4px 8px;
    border-radius: 6px;
    white-space: nowrap;
    transition: background 0.2s;
}
.sidebar-footer .logout-link:hover {
    background: rgba(237, 137, 54, 0.1);
}

/* 主内容区 */
.main-content {
    flex: 1;
    margin-left: 240px;
    padding: 24px 32px;
    max-width: 1200px;
}

.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.top-header h1 {
    font-size: 24px;
    font-weight: 700;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-right .date {
    color: var(--text-secondary);
    font-size: 14px;
}

.content-area {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* 卡片 */
.card {
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
}

.card-header h2 {
    font-size: 15px;
    font-weight: 600;
}

.card-link {
    font-size: 13px;
    color: var(--primary);
    text-decoration: none;
}

.card-link:hover {
    text-decoration: underline;
}

.card-body {
    padding: 20px;
}

/* 按钮 */
.btn-add {
    padding: 8px 16px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

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

.btn-check {
    width: 28px;
    height: 28px;
    border: 1px solid var(--border);
    background: white;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
    color: var(--primary);
}

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

.btn-delete {
    color: #ef4444;
    text-decoration: none;
    padding: 4px 8px;
    border-radius: 4px;
}

.btn-delete:hover {
    background: #fee2e2;
}

.btn-edit {
    color: var(--primary);
    text-decoration: none;
    padding: 4px 8px;
    border-radius: 4px;
}

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

.btn-archive {
    color: #d97706;
    text-decoration: none;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 14px;
}

.btn-archive:hover {
    background: #fef3c7;
}

.btn-restore {
    color: #2563eb;
    text-decoration: none;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 14px;
}

.btn-restore:hover {
    background: #dbeafe;
}

/* ===== 更新日志 ===== */
.changelog-form {
    margin-bottom: 20px;
    padding: 18px;
}
.changelog-form .card-title {
    margin: 0 0 12px;
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}
.changelog-form .form-row {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}
.changelog-form .form-input {
    flex: 1;
    min-width: 0;
    padding: 8px 10px;
    border: 1px solid var(--border-color, #e2e8f0);
    border-radius: 8px;
    font-size: 14px;
    background: var(--bg-input, #fff);
    color: var(--text-primary);
}
.changelog-form textarea.form-input {
    width: 100%;
    margin-bottom: 10px;
    resize: vertical;
}
.changelog-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.changelog-item {
    padding: 14px 16px;
}
.changelog-item-head {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}
.changelog-date {
    font-size: 13px;
    color: var(--text-muted, #94a3b8);
    font-variant-numeric: tabular-nums;
}
.changelog-badge {
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 999px;
    font-weight: 600;
}
.badge-feature { background: #dcfce7; color: #166534; }
.badge-fix { background: #fee2e2; color: #991b1b; }
.badge-optimize { background: #dbeafe; color: #1e40af; }
.changelog-mood { font-size: 15px; }
.changelog-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    flex: 1;
}
.changelog-del {
    margin-left: auto;
}
.changelog-content {
    margin-top: 8px;
    font-size: 14px;
    color: var(--text-secondary, #475569);
    line-height: 1.6;
    white-space: pre-wrap;
}

/* 周报历史复盘折叠项 */
.review-history-item {
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 14px;
    margin-bottom: 10px;
    background: var(--bg);
}
.review-history-item summary {
    cursor: pointer;
    display: flex;
    align-items: baseline;
    gap: 12px;
    font-weight: 600;
    color: var(--text);
}
.review-history-item summary::-webkit-details-marker { color: var(--primary); }
.rh-week { color: var(--primary); white-space: nowrap; }
.rh-summary { font-weight: 400; color: var(--text-secondary); font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.review-fields { margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--border); }
.review-fields p { margin: 6px 0; line-height: 1.6; }


.btn-save {
    padding: 10px 20px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
}

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

.btn-download {
    padding: 4px 12px;
    background: var(--bg);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 4px;
    text-decoration: none;
    font-size: 12px;
}

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

/* 任务列表 */
.task-list {
    padding: 8px;
}

.task-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-radius: 8px;
    transition: background 0.15s;
}

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

.task-item.overdue .task-title {
    color: #dc2626;
}

.task-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.task-title {
    font-size: 14px;
    font-weight: 500;
}

.task-desc {
    font-size: 12px;
    color: var(--text-secondary);
}

.task-meta {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* 标签 */
.tabs {
    display: flex;
    gap: 4px;
}

.tab {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    color: var(--text-secondary);
    text-decoration: none;
}

.tab.active {
    background: var(--primary-light);
    color: var(--primary-dark);
    font-weight: 500;
}

/* 优先级标签 */
.priority {
    font-size: 11px;
    padding: 2px 8px;
    border-radius: 4px;
    font-weight: 600;
}

.priority-high { background: #fee2e2; color: #dc2626; }
.priority-medium { background: #fef3c7; color: #d97706; }
.priority-low { background: #dbeafe; color: #2563eb; }

.due-date {
    font-size: 12px;
    color: var(--text-secondary);
}

/* 项目网格 */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
    padding: 16px;
}
/* 空状态在网格容器中横跨所有列，保证与卡片/列表空状态一致居中 */
.project-grid .empty-state {
    grid-column: 1 / -1;
}


.project-card {
    padding: 16px;
    background: var(--bg);
    border-radius: 8px;
}

.project-name {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 12px;
}

.project-progress {
    display: flex;
    align-items: center;
    gap: 8px;
}

.progress-bar {
    flex: 1;
    height: 6px;
    background: var(--border);
    border-radius: 3px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 3px;
    transition: width 0.3s;
}

.progress-text {
    font-size: 12px;
    color: var(--text-secondary);
    min-width: 32px;
}

/* 项目列表 */
.project-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 16px;
}

.project-card {
    padding: 16px;
    background: var(--bg);
    border-radius: 8px;
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.project-header h3 {
    font-size: 15px;
    font-weight: 600;
}

.status {
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 4px;
}

.status-active { background: #d1fae5; color: #059669; }
.status-paused { background: #fef3c7; color: #d97706; }
.status-completed { background: #e0e7ff; color: #4f46e5; }

.project-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.project-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 12px;
    font-size: 12px;
    color: var(--text-secondary);
}

/* 笔记网格 */
.note-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    padding: 16px;
}

.note-card {
    padding: 16px;
    background: var(--bg);
    border-radius: 8px;
    border: 1px solid var(--border);
}

.note-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 8px;
}

.note-header h3 {
    font-size: 14px;
    font-weight: 600;
}

.note-date {
    font-size: 11px;
    color: var(--text-secondary);
}

.note-content {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 12px;
}

.note-actions {
    display: flex;
    gap: 8px;
}

/* 笔记列表 */
.note-list {
    padding: 8px;
}

.note-item {
    padding: 12px 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s;
}

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

.note-title {
    font-size: 14px;
    font-weight: 500;
    display: block;
    margin-bottom: 4px;
}

.note-preview {
    font-size: 12px;
    color: var(--text-secondary);
}

/* 备份列表 */
.backup-list {
    padding: 16px;
}

.backup-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    border-radius: 8px;
    border-bottom: 1px solid var(--border);
}

.backup-item:last-child {
    border-bottom: none;
}

.backup-name {
    font-size: 14px;
    font-weight: 500;
}

.backup-size, .backup-time {
    font-size: 12px;
    color: var(--text-secondary);
    margin: 0 16px;
}

/* 表单 */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-secondary);
}

.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 14px;
    resize: vertical;
    font-family: inherit;
}

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

/* 空状态 */
.empty-state {
    text-align: center;
    padding: 32px;
    color: var(--text-secondary);
}

.empty-state p {
    margin-bottom: 12px;
}

/* 统计 */
.stats {
    font-size: 13px;
    color: var(--text-secondary);
}

.week-range {
    font-size: 14px;
    color: var(--text-secondary);
}

/* 响应式 */
@media (max-width: 768px) {
    .sidebar {
        width: 60px;
    }
    
    .sidebar .logo-text,
    .sidebar .section-title,
    .sidebar .nav-item span:not(.nav-icon),
    .sidebar .nav-badge,
    .sidebar-footer {
        display: none;
    }
    
    .main-content {
        margin-left: 60px;
        padding: 16px;
    }
    
    .project-grid {
        grid-template-columns: 1fr;
    }
}