/* ==================== 便签备忘模块样式 ==================== */
/* 从 admin.css 拆分，包含：便签卡片、瀑布流、待办清单、编辑弹窗、回收站 */
/* 依赖：admin.css 中的设计令牌（CSS 变量） */

/* ==================== 便签备忘模块 — 拟物化设计 ==================== */
/* 设计灵感：Windows 便签 + Post-it + CSS3 Paper Curl + Google Keep */
/* 每张卡片：顶部色条 + 图钉装饰 + 纸张质感 + 底部卷角阴影 */

/* 顶部操作栏 */
.memo-topbar { margin-bottom: 20px; }

/* 快速创建区 */
.memo-create-box {
    background: #ffffff;
    border-radius: var(--radius-lg);
    border: 1px solid #e2e8f0;
    padding: 16px;
    margin-bottom: 16px;
    transition: box-shadow 0.2s;
}
.memo-create-box:focus-within {
    box-shadow: 0 4px 16px rgba(106, 92, 255, 0.10);
    border-color: var(--primary-border);
}

/* 输入框 */
.memo-input {
    width: 100%;
    border: none;
    outline: none;
    resize: none;
    font-size: 14px;
    font-family: inherit;
    color: var(--text-primary);
    background: transparent;
    line-height: 1.6;
    min-height: 48px;
    max-height: 200px;
    overflow-y: auto;
}
.memo-input::placeholder { color: var(--text-tertiary); }

/* 创建区底部操作栏 */
.memo-create-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid var(--border-light);
}
.memo-create-btns {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* 颜色选择器 */
.memo-color-picker {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}
.memo-color-dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.15s;
    border: 2px solid transparent;
    flex-shrink: 0;
}
.memo-color-dot:hover { transform: scale(1.25); }
.memo-color-dot.active {
    border-color: var(--text-primary);
    box-shadow: 0 0 0 2px rgba(106, 92, 255, 0.2);
    transform: scale(1.2);
}

/* 清单模式切换 */
.memo-todo-toggle {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
}
.memo-todo-toggle input[type="checkbox"] { cursor: pointer; }
.memo-todo-label { pointer-events: none; }

/* 筛选栏 */
.memo-filters {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}
.memo-filter-tabs {
    display: flex;
    gap: 4px;
    background: rgba(244, 247, 255, 0.5);
    border-radius: var(--radius);
    padding: 3px;
}
.memo-tab {
    padding: 6px 16px;
    border: none;
    background: transparent;
    color: var(--text-tertiary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: inherit;
    border-radius: var(--radius-sm);
}
.memo-tab:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.5);
}
.memo-tab.active {
    color: var(--primary);
    background: rgba(255, 255, 255, 0.85);
    box-shadow: var(--shadow-xs);
    font-weight: 600;
}
.memo-filter-right {
    display: flex;
    align-items: center;
    gap: 12px;
}
.memo-color-filter {
    display: flex;
    align-items: center;
    gap: 5px;
    flex-wrap: wrap;
}

/* 搜索框 */
.memo-search {
    width: 180px;
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-family: inherit;
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.65);
    outline: none;
    transition: var(--transition);
}
.memo-search:focus {
    border-color: var(--primary);
    box-shadow: var(--ring);
    background: rgba(255, 255, 255, 0.85);
}
.memo-search::placeholder { color: var(--text-tertiary); }

/* ==================== 卡片网格（CSS columns 瀑布流） ==================== */
.memo-grid {
    column-count: 4;
    column-gap: 18px;
}

/* ==================== 便签卡片 — 拟物化核心样式 ==================== */
.memo-card {
    /* CSS 变量由 JS 内联注入：--memo-bg, --memo-stripe, --memo-pin */
    break-inside: avoid;
    margin-bottom: 18px;
    border-radius: 10px;
    padding: 0;
    position: relative;
    cursor: default;
    /* 最小高度 — 保证内容少时仍呈竖向便签比例 */
    min-height: 180px;
    /* 纸张质感背景 */
    background: var(--memo-bg, #fffde7);
    /* 微妙的纸张边框 */
    border: none;
    /* 柔和投影 — 模拟纸张浮起 */
    box-shadow:
        0 2px 8px rgba(0,0,0,0.08),
        0 1px 3px rgba(0,0,0,0.06);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
    /* 弹性布局 — 让底部元信息贴底 */
    display: flex;
    flex-direction: column;
}

/* 顶部色条 — 模拟便签顶部的粘胶条（稍宽，更有存在感） */
.memo-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 7px;
    background: var(--memo-stripe, #fdd835);
    z-index: 1;
}

/* 底部弧形阴影 — 已移除卷边效果 */
.memo-card::after {
    display: none;
}

/* 悬停时阴影 — 已移除卷边效果 */
.memo-card:hover::after {
    display: none;
}

/* 悬停效果 — 纸张微微抬起 */
.memo-card:hover {
    transform: translateY(-3px);
    box-shadow:
        0 8px 24px rgba(0,0,0,0.10),
        0 3px 8px rgba(0,0,0,0.06);
}

/* 卡片内部内容区（padding 在这里控制，避免色条被遮挡） */
.memo-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 14px 0;
    min-height: 28px;
    position: relative;
    z-index: 2;
}

.memo-card-badges {
    display: flex;
    align-items: center;
    gap: 6px;
}

.memo-pin-badge { font-size: 14px; }

.memo-source-badge {
    font-size: 10px;
    padding: 2px 8px;
    border-radius: 10px;
    background: rgba(0,0,0,0.06);
    color: rgba(0,0,0,0.5);
    font-weight: 500;
    line-height: 1.4;
    letter-spacing: 0.3px;
}

/* 闪念来源：紫蓝色系（与主色呼应） */
.memo-src-flash {
    background: linear-gradient(135deg, rgba(106,92,255,0.12), rgba(22,183,255,0.10));
    color: #6A5CFF;
    border: 1px solid rgba(106,92,255,0.15);
    box-shadow: 0 1px 3px rgba(106,92,255,0.08);
}

/* 扩展来源 */
.memo-src-ext {
    background: linear-gradient(135deg, rgba(245,158,11,0.10), rgba(251,191,36,0.08));
    color: #b45309;
    border: 1px solid rgba(245,158,11,0.15);
    box-shadow: 0 1px 3px rgba(245,158,11,0.06);
}

/* 桌面来源 */
.memo-src-desk {
    background: linear-gradient(135deg, rgba(16,185,129,0.10), rgba(52,211,153,0.08));
    color: #059669;
    border: 1px solid rgba(16,185,129,0.15);
    box-shadow: 0 1px 3px rgba(16,185,129,0.06);
}

/* 接口来源 */
.memo-src-api {
    background: linear-gradient(135deg, rgba(99,102,241,0.10), rgba(139,92,246,0.08));
    color: #6366f1;
    border: 1px solid rgba(99,102,241,0.15);
    box-shadow: 0 1px 3px rgba(99,102,241,0.06);
}

/* 操作按钮组（默认隐藏，hover 显示） */
.memo-card-actions {
    display: flex;
    gap: 2px;
    opacity: 0;
    transition: opacity 0.15s;
}
.memo-card:hover .memo-card-actions { opacity: 1; }

.memo-action-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 13px;
    padding: 3px 5px;
    border-radius: 4px;
    transition: background 0.15s;
    line-height: 1;
}
.memo-action-btn:hover { background: rgba(0,0,0,0.08); }
.memo-action-delete:hover { background: rgba(255,59,106,0.12); }

/* 卡片内容 */
.memo-card-content {
    font-size: 15px;
    line-height: 1.8;
    color: rgba(0,0,0,0.78);
    word-break: break-word;
    padding: 10px 14px 0;
    max-height: 280px;
    overflow: hidden;
    position: relative;
    z-index: 2;
    /* 撑满剩余空间，让底部元信息贴底 */
    flex: 1;
}

/* 卡片底部元信息 */
.memo-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 14px 12px;
    position: relative;
    z-index: 2;
    /* 始终贴底 */
    margin-top: auto;
}
.memo-card-time {
    font-size: 11px;
    color: rgba(0,0,0,0.35);
}
.memo-card-tag {
    font-size: 10px;
    padding: 1px 6px;
    border-radius: 8px;
    background: rgba(0,0,0,0.06);
    color: rgba(0,0,0,0.45);
    font-weight: 500;
}

/* ==================== 待办清单样式 ==================== */
.memo-todo-list {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 8px 14px 0;
    position: relative;
    z-index: 2;
    /* 撑满剩余空间，与 memo-card-content 一致 */
    flex: 1;
}
.memo-todo-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(0,0,0,0.75);
    cursor: pointer;
    padding: 3px 0;
    transition: color 0.15s;
    border-bottom: 1px dashed rgba(0,0,0,0.06);
}
.memo-todo-item:last-child { border-bottom: none; }
.memo-todo-item input[type="checkbox"] {
    cursor: pointer;
    flex-shrink: 0;
    accent-color: var(--memo-stripe, #fdd835);
}
.memo-todo-item.memo-todo-done span {
    text-decoration: line-through;
    color: rgba(0,0,0,0.3);
}

/* ==================== 空状态 / 加载状态 ==================== */
.memo-empty {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-tertiary);
    font-size: 14px;
    column-span: all;
}
.memo-empty-icon {
    font-size: 40px;
    margin-bottom: 12px;
    opacity: 0.5;
}
.memo-loading {
    text-align: center;
    padding: 40px;
    color: var(--text-tertiary);
    column-span: all;
}
.memo-load-more {
    text-align: center;
    padding: 16px 0;
}

/* ==================== 编辑覆盖层 ==================== */
.memo-edit-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.45);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1500;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
}
.memo-edit-overlay.show { opacity: 1; visibility: visible; }

.memo-edit-box {
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    border: 1px solid rgba(255,255,255,0.45);
    width: 520px;
    max-width: 90vw;
    transform: scale(0.92) translateY(10px);
    transition: transform 0.2s ease;
    overflow: hidden;
}
.memo-edit-overlay.show .memo-edit-box {
    transform: scale(1) translateY(0);
}
.memo-edit-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-light);
}
.memo-edit-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}
.memo-edit-textarea {
    width: 100%;
    border: none;
    outline: none;
    resize: vertical;
    font-size: 14px;
    font-family: inherit;
    color: var(--text-primary);
    background: transparent;
    line-height: 1.6;
    padding: 16px 20px;
    min-height: 120px;
    max-height: 400px;
}
.memo-edit-options {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px 12px;
}
.memo-edit-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 12px 20px;
    border-top: 1px solid var(--border-light);
}

/* ==================== 回收站卡片样式 ==================== */
/* 回收站卡片半透明效果，与正常卡片区分 */
.memo-card-trash {
    opacity: 0.72;
    filter: grayscale(0.15);
}
.memo-card-trash:hover {
    opacity: 1;
    filter: grayscale(0);
}

/* ==================== 便签模块响应式 ==================== */
@media (max-width: 1400px) {
    .memo-grid { column-count: 3; }
}
@media (max-width: 1024px) {
    .memo-grid { column-count: 2; }
    .memo-filters { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 640px) {
    .memo-grid { column-count: 1; }
    .memo-search { width: 100%; }
    .memo-filter-right { width: 100%; flex-wrap: wrap; }
    .memo-card-actions { opacity: 1; }
}