/* 复用语管理 - 全局样式（响应式，兼容 PC 与手机） */

:root {
    --primary: #4a7cff;
    --primary-dark: #3a63cc;
    --danger: #e5484d;
    --bg: #f5f6f8;
    --card-bg: #ffffff;
    --border: #e3e6eb;
    --text: #2b2f36;
    --text-secondary: #7a828d;
    --radius: 10px;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
        "Microsoft YaHei", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ---------- 顶部栏 ---------- */
.topbar {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 20px;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.04);
}

.app-title {
    font-size: 18px;
    font-weight: 700;
    white-space: nowrap;
}

.search-box {
    position: relative;
    flex: 1;
    max-width: 420px;
    display: flex;
    align-items: center;
}

#search-input {
    width: 100%;
    padding: 8px 32px 8px 14px;
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 14px;
    outline: none;
    background: var(--bg);
    transition: border-color 0.2s;
}

#search-input:focus { border-color: var(--primary); background: #fff; }

.btn-clear {
    position: absolute;
    right: 6px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 18px;
    cursor: pointer;
    padding: 0 6px;
    line-height: 1;
}

/* ---------- 布局 ---------- */
.layout {
    display: flex;
    max-width: 1200px;
    margin: 0 auto;
    min-height: calc(100vh - 57px);
}

/* ---------- 侧边栏（标签） ---------- */
.sidebar {
    width: 220px;
    flex-shrink: 0;
    padding: 16px 12px;
    border-right: 1px solid var(--border);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 6px 10px;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
}

.category-list { list-style: none; }

/* 手机端折叠开关：默认隐藏，仅手机端显示 */
.cat-toggle {
    display: none;
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card-bg);
    color: var(--text);
    font-size: 14px;
    text-align: left;
    cursor: pointer;
    margin-bottom: 6px;
}
.cat-toggle-arrow {
    float: right;
    color: var(--text-secondary);
    transition: transform 0.2s;
}
.cat-toggle.expanded .cat-toggle-arrow { transform: rotate(180deg); }

.category-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 10px;
    margin-bottom: 4px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.15s;
}

.category-item:hover { background: rgba(74, 124, 255, 0.08); }
.category-item.active { background: var(--primary); color: #fff; }
.category-item.active .cat-count { color: rgba(255, 255, 255, 0.8); }

.cat-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

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

/* 标签项行内操作（编辑/删除） */
.cat-actions { display: none; gap: 4px; }
.category-item:hover .cat-actions { display: flex; }
.cat-actions button {
    border: none;
    background: transparent;
    color: inherit;
    cursor: pointer;
    font-size: 13px;
    padding: 0 2px;
    opacity: 0.7;
}
.cat-actions button:hover { opacity: 1; }

/* ---------- 主内容区 ---------- */
.main { flex: 1; padding: 16px 20px 80px; min-width: 0; }

.main-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.result-info { font-size: 13px; color: var(--text-secondary); }

.phrase-list { display: flex; flex-direction: column; gap: 12px; }

/* ---------- 条目卡片 ---------- */
.phrase-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 14px 16px;
    box-shadow: var(--shadow);
    transition: box-shadow 0.15s;
}

.phrase-card:hover { box-shadow: 0 4px 14px rgba(0, 0, 0, 0.1); }

.phrase-content {
    font-size: 15px;
    word-break: break-word;
    white-space: pre-wrap;
}

.phrase-note {
    margin-top: 6px;
    font-size: 13px;
    color: var(--text-secondary);
    word-break: break-word;
}

.phrase-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px dashed var(--border);
    font-size: 12px;
    color: var(--text-secondary);
}

.phrase-category {
    display: inline-block;
    padding: 1px 8px;
    border-radius: 10px;
    background: rgba(74, 124, 255, 0.1);
    color: var(--primary);
}

.phrase-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}
.phrase-actions .btn { white-space: nowrap; }

/* ---------- 按钮 ---------- */
.btn {
    padding: 6px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--card-bg);
    color: var(--text);
    font-size: 13px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s;
}

.btn:hover { border-color: var(--primary); color: var(--primary); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: #fff;
}
.btn-primary:hover { background: var(--primary-dark); color: #fff; }

.btn-danger { border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }

.btn-icon {
    width: 30px;
    height: 30px;
    padding: 0;
    font-size: 16px;
    line-height: 1;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-sm { padding: 3px 10px; font-size: 12px; }

.btn-placeholder {
    align-self: flex-start;
    white-space: nowrap;
    margin-left: 8px;
}

/* ---------- 浮动按钮（手机端） ---------- */
.fab {
    position: fixed;
    right: 20px;
    bottom: 24px;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    border: none;
    background: var(--primary);
    color: #fff;
    font-size: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
    padding: 0;
    box-shadow: 0 4px 14px rgba(74, 124, 255, 0.4);
    cursor: pointer;
    z-index: 15;
    display: none;
}

/* ---------- 模态框 ---------- */
/* 注意：hidden 属性需显式覆盖 display，否则 .modal-overlay 的 display:flex 会使其一直显示 */
.modal-overlay[hidden] {
    display: none;
}

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 30;
    padding: 16px;
}

.modal {
    background: var(--card-bg);
    border-radius: 12px;
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
}

.modal-sm { max-width: 360px; }

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

.modal-header h2 { font-size: 16px; }

#phrase-form, #category-form { padding: 16px 20px 20px; }

.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; margin-bottom: 6px; color: var(--text-secondary); }
.req { color: var(--danger); }

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    outline: none;
    background: #fff;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { border-color: var(--primary); }

.content-row {
    display: flex;
    align-items: flex-start;
}
.content-row textarea { flex: 1; resize: vertical; }

.field-hint { font-size: 12px; color: var(--text-secondary); margin-top: 6px; }

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 8px;
}

.confirm-text { padding: 20px; font-size: 14px; color: var(--text); }
.confirm-text .danger { color: var(--danger); font-weight: 600; }
#confirm-modal .modal-footer { padding: 0 20px 20px; }

/* ---------- 空状态与提示 ---------- */
.empty-tip {
    text-align: center;
    color: var(--text-secondary);
    padding: 60px 20px;
    font-size: 14px;
}

.toast {
    position: fixed;
    left: 50%;
    bottom: 40px;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.75);
    color: #fff;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 13px;
    z-index: 50;
    animation: fadein 0.2s;
}

@keyframes fadein {
    from { opacity: 0; transform: translateX(-50%) translateY(10px); }
    to { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ---------- 响应式（手机端） ---------- */
@media (max-width: 720px) {
    .topbar { padding: 10px 12px; }
    .app-title { font-size: 16px; }

    .layout { flex-direction: column; }

    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding: 8px 12px;
    }
    .sidebar-header { display: none; }

    /* 手机端折叠开关显示 */
    .cat-toggle { display: block; }

    /* 标签列表默认隐藏，展开时显示为垂直列表 */
    .category-list {
        display: none;
        gap: 4px;
        padding-top: 4px;
    }
    .sidebar.expanded .category-list {
        display: flex;
        flex-direction: column;
    }
    .category-item { margin-bottom: 0; flex-shrink: 0; }
    .category-item .cat-actions { display: none; }

    .main { padding: 12px 12px 90px; }

    .fab { display: flex; }

    /* 手机端隐藏主工具栏的新增按钮，用悬浮按钮代替 */
    #add-phrase-btn { display: none; }

    /* 手机端卡片底部改为上下两行：上方分类+时间，下方按钮右对齐，避免横向挤压 */
    .phrase-meta {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
    }
    .phrase-actions {
        justify-content: flex-start;
        gap: 6px;
    }
    .phrase-actions .btn {
        padding: 5px 12px;
        flex-shrink: 0;
    }
}