/**
 * FullScreenModal 共用框架 - 品牌橘色系設計
 * 提供全屏彈窗的基礎樣式，可被各子模組繼承
 *
 * 使用方式：
 * - 引入此檔案作為基礎
 * - 子模組使用各自的前綴（如 fpm-、em-）進行特化
 *
 * 佈局模式：
 * - .fsm--scroll-layout  單頁捲動式（filter_params_modal）
 * - .fsm--columns-layout 三欄平行式（editor_modal）
 */

/* =====================================================
   CSS 變數 - 繼承品牌設計系統
   ===================================================== */

:root {
    /* ===== 主色系 ===== */
    --fsm-primary: var(--color-accent);
    --fsm-primary-hover: var(--color-accent-hover);
    --fsm-primary-light: var(--color-accent-subtle);
    --fsm-primary-lighter: var(--primitive-orange-50);

    /* ===== 背景色 ===== */
    --fsm-bg: var(--color-bg-page);
    --fsm-card-bg: var(--color-bg-secondary);
    --fsm-section-bg: var(--color-bg-secondary);

    /* ===== 文字色 ===== */
    --fsm-text: var(--color-text-primary);
    --fsm-text-secondary: var(--color-text-tertiary);
    --fsm-text-muted: var(--color-text-muted);

    /* ===== 邊框 ===== */
    --fsm-border: var(--color-border-subtle);
    --fsm-border-hover: var(--color-accent-subtle);
    --fsm-border-solid: var(--color-border-default);

    /* ===== 圓角 ===== */
    --fsm-radius-sm: 6px;
    --fsm-radius-md: 12px;
    --fsm-radius-lg: 20px;

    /* ===== 陰影 ===== */
    --fsm-shadow-sm: var(--shadow-sm);
    --fsm-shadow-md: var(--shadow-md);
    --fsm-shadow-lg: var(--shadow-lg);

    /* ===== 動畫 ===== */
    --fsm-transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --fsm-animation-duration: 0.3s;

    /* ===== 尺寸 ===== */
    --fsm-header-height: 56px;
    --fsm-footer-height: 60px;
    --fsm-panel-gap: 12px;
}

/* 單頁捲動模式變數 */
.fsm--scroll-layout {
    --fsm-content-max-width: 800px;
    --fsm-content-padding: 24px;
}

/* 三欄平行模式變數 */
.fsm--columns-layout {
    --fsm-column-left-width: 220px;
    --fsm-column-right-width: 260px;
    --fsm-column-center-min-width: 280px;
}

/* =====================================================
   全屏 Overlay
   ===================================================== */

.fsm-overlay {
    position: fixed;
    inset: 0;
    left: var(--sidebar-width, 60px);
    background: var(--fsm-bg);
    z-index: 1100;
    display: none;
    flex-direction: column;
    font-family: 'Noto Sans TC', -apple-system, BlinkMacSystemFont, sans-serif;
    transition: left var(--sidebar-transition, 200ms cubic-bezier(0.4, 0, 0.2, 1));
}

/* 側邊欄展開時，overlay 跟隨偏移 */
body:has(.collapsible-sidebar.expanded) .fsm-overlay {
    left: var(--sidebar-expanded, 280px);
}

.fsm-overlay.show {
    display: flex;
    animation: fsmSlideUp var(--fsm-animation-duration) ease-out;
}

.fsm-overlay.closing {
    animation: fsmSlideDown 0.25s ease-in forwards;
}

@keyframes fsmSlideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes fsmSlideDown {
    from {
        transform: translateY(0);
        opacity: 1;
    }
    to {
        transform: translateY(100%);
        opacity: 0;
    }
}

/* =====================================================
   固定頂部列
   ===================================================== */

.fsm-header {
    height: var(--fsm-header-height);
    background: var(--fsm-card-bg);
    border-bottom: 1px solid var(--fsm-border);
    box-shadow: var(--fsm-shadow-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    flex-shrink: 0;
    position: sticky;
    top: 0;
    z-index: 10;
}

.fsm-back-btn {
    width: 40px;
    height: 40px;
    border: none;
    background: transparent;
    color: var(--fsm-text-secondary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--fsm-transition);
}

.fsm-back-btn:hover {
    background: var(--fsm-primary-lighter);
    color: var(--fsm-primary);
}

.fsm-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--fsm-text);
    margin: 0;
    flex: 1;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.fsm-title i {
    color: var(--fsm-primary);
}

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

/* =====================================================
   按鈕樣式
   ===================================================== */

.fsm-btn-primary {
    background: linear-gradient(135deg, var(--fsm-primary) 0%, var(--fsm-primary-hover) 100%);
    color: white;
    border: none;
    border-radius: var(--fsm-radius-lg);
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: var(--fsm-shadow-md);
    transition: all var(--fsm-transition);
    display: flex;
    align-items: center;
    gap: 4px;
}

.fsm-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--fsm-shadow-lg);
}

.fsm-btn-primary:active {
    transform: translateY(0);
}

.fsm-btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.fsm-btn-secondary {
    background: transparent;
    color: var(--fsm-text-secondary);
    border: 1px solid var(--fsm-border-solid);
    border-radius: var(--fsm-radius-lg);
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--fsm-transition);
}

.fsm-btn-secondary:hover {
    background: var(--fsm-primary-lighter);
    border-color: var(--fsm-primary);
    color: var(--fsm-primary);
}

/* 工具按鈕 */
.fsm-tool-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--fsm-text-secondary);
    border-radius: var(--fsm-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--fsm-transition);
}

.fsm-tool-btn:hover {
    background: var(--fsm-primary-lighter);
    color: var(--fsm-primary);
}

.fsm-tool-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* 操作按鈕 */
.fsm-action-btn {
    padding: 6px 12px;
    background: transparent;
    color: var(--fsm-text-secondary);
    border: 1px solid var(--fsm-border-solid);
    border-radius: var(--fsm-radius-sm);
    font-size: 13px;
    cursor: pointer;
    transition: all var(--fsm-transition);
    display: flex;
    align-items: center;
    gap: 4px;
}

.fsm-action-btn:hover {
    background: var(--fsm-primary-lighter);
    border-color: var(--fsm-primary);
    color: var(--fsm-primary);
}

.fsm-action-btn--primary {
    background: var(--fsm-primary);
    color: white;
    border-color: var(--fsm-primary);
}

.fsm-action-btn--primary:hover {
    background: var(--fsm-primary-hover);
    color: white;
}

.fsm-action-btn--danger:hover {
    background: var(--color-danger-subtle);
    border-color: var(--color-danger);
    color: var(--color-danger);
}

/* =====================================================
   三欄佈局容器
   ===================================================== */

.fsm-columns-container {
    display: grid;
    grid-template-columns: var(--fsm-column-left-width) 1fr var(--fsm-column-right-width);
    gap: var(--fsm-panel-gap);
    flex: 1;
    overflow: hidden;
    padding: var(--fsm-panel-gap);
}

.fsm-column {
    display: flex;
    flex-direction: column;
    background: var(--fsm-card-bg);
    border: 1px solid var(--fsm-border);
    border-radius: var(--fsm-radius-md);
    box-shadow: var(--fsm-shadow-sm);
    overflow: hidden;
}

.fsm-column-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px dashed var(--fsm-border);
    flex-shrink: 0;
}

.fsm-column-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--fsm-primary);
    display: flex;
    align-items: center;
    gap: 6px;
}

.fsm-section-icon {
    font-size: 14px;
}

.fsm-toolbar {
    display: flex;
    gap: 4px;
}

.fsm-toolbar--actions {
    padding: 8px 16px;
    border-bottom: 1px solid var(--fsm-border);
    background: var(--fsm-section-bg);
}

.fsm-toolbar--bottom {
    padding: 12px 16px;
    border-top: 1px solid var(--fsm-border);
    background: var(--fsm-section-bg);
    display: flex;
    gap: 8px;
    justify-content: center;
}

/* =====================================================
   搜尋框
   ===================================================== */

.fsm-search-box {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    margin: 12px 16px;
    background: var(--fsm-section-bg);
    border: 1px solid var(--fsm-border-solid);
    border-radius: var(--fsm-radius-sm);
    transition: all var(--fsm-transition);
}

.fsm-search-box:focus-within {
    border-color: var(--fsm-primary);
    box-shadow: 0 0 0 3px var(--fsm-primary-light);
}

.fsm-search-box i {
    color: var(--fsm-text-muted);
    font-size: 14px;
}

.fsm-search-box input {
    flex: 1;
    border: none;
    background: transparent;
    font-size: 14px;
    color: var(--fsm-text);
    outline: none;
}

.fsm-search-box input::placeholder {
    color: var(--fsm-text-muted);
}

/* =====================================================
   列表樣式
   ===================================================== */

.fsm-list {
    list-style: none;
    margin: 0;
    padding: 0;
    flex: 1;
    overflow-y: auto;
}

.fsm-list-item {
    display: flex;
    align-items: center;
    padding: 10px 16px;
    cursor: pointer;
    transition: all var(--fsm-transition);
    border-left: 3px solid transparent;
}

.fsm-list-item:hover {
    background: var(--fsm-primary-lighter);
}

.fsm-list-item.active {
    background: var(--fsm-primary-light);
    border-left-color: var(--fsm-primary);
}

.fsm-list-item.default::after {
    content: '預設';
    font-size: 10px;
    padding: 2px 6px;
    background: var(--fsm-primary);
    color: white;
    border-radius: 4px;
    margin-left: auto;
}

.fsm-list-item-text {
    flex: 1;
    font-size: 14px;
    color: var(--fsm-text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.fsm-list-item-count {
    font-size: 12px;
    color: var(--fsm-text-muted);
    margin-left: 8px;
}

/* =====================================================
   表格樣式
   ===================================================== */

.fsm-table-container {
    flex: 1;
    overflow: auto;
    padding: 0 16px;
}

.fsm-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.fsm-table thead {
    position: sticky;
    top: 0;
    background: var(--fsm-card-bg);
    z-index: 1;
}

.fsm-table th {
    text-align: left;
    padding: 10px 8px;
    font-weight: 600;
    color: var(--fsm-text-secondary);
    border-bottom: 1px solid var(--fsm-border-solid);
}

.fsm-table td {
    padding: 10px 8px;
    color: var(--fsm-text);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.fsm-table tbody tr {
    transition: all var(--fsm-transition);
}

.fsm-table tbody tr:hover {
    background: var(--fsm-primary-lighter);
}

.fsm-table tbody tr.selected {
    background: var(--fsm-primary-light);
}

.fsm-table tbody tr.newly-added {
    animation: fsmHighlightFade 4s ease-out forwards;
}

@keyframes fsmHighlightFade {
    0% {
        background: linear-gradient(90deg, rgba(34, 197, 94, 0.3), rgba(34, 197, 94, 0.1));
    }
    100% {
        background: transparent;
    }
}

.fsm-empty-row td {
    text-align: center;
    color: var(--fsm-text-muted);
    padding: 40px;
}

/* =====================================================
   樹狀視圖
   ===================================================== */

.fsm-tree-view {
    flex: 1;
    overflow-y: auto;
    padding: 8px 0;
}

.fsm-tree-node {
    user-select: none;
}

.fsm-tree-node-header {
    display: flex;
    align-items: center;
    padding: 8px 16px;
    cursor: pointer;
    transition: all var(--fsm-transition);
}

.fsm-tree-node-header:hover {
    background: var(--fsm-primary-lighter);
}

.fsm-tree-node-header.active {
    background: var(--fsm-primary-light);
}

.fsm-tree-toggle {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--fsm-text-muted);
    font-size: 10px;
    transition: transform var(--fsm-transition);
}

.fsm-tree-node.expanded > .fsm-tree-node-header .fsm-tree-toggle {
    transform: rotate(90deg);
}

.fsm-tree-node-icon {
    margin-right: 8px;
    color: var(--fsm-text-secondary);
}

.fsm-tree-node-label {
    flex: 1;
    font-size: 13px;
    color: var(--fsm-text);
}

.fsm-tree-node-count {
    font-size: 11px;
    color: var(--fsm-text-muted);
    margin-left: 4px;
}

.fsm-tree-children {
    display: none;
    padding-left: 20px;
}

.fsm-tree-node.expanded > .fsm-tree-children {
    display: block;
}

/* =====================================================
   子 Modal（對話框）
   ===================================================== */

.fsm-sub-modal {
    position: fixed;
    inset: 0;
    z-index: 1200;
    display: none;
    align-items: center;
    justify-content: center;
}

.fsm-sub-modal.show {
    display: flex;
    animation: fsmFadeIn 0.2s ease-out;
}

@keyframes fsmFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fsm-sub-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.fsm-sub-modal-content {
    position: relative;
    background: var(--fsm-card-bg);
    border-radius: var(--fsm-radius-md);
    width: 90%;
    max-width: 400px;
    box-shadow: var(--fsm-shadow-lg);
    animation: fsmScaleIn 0.2s ease-out;
}

@keyframes fsmScaleIn {
    from {
        transform: scale(0.95);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

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

.fsm-sub-modal-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--fsm-text);
    margin: 0;
}

.fsm-sub-modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--fsm-text-muted);
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--fsm-transition);
}

.fsm-sub-modal-close:hover {
    background: var(--fsm-primary-lighter);
    color: var(--fsm-primary);
}

.fsm-sub-modal-body {
    padding: 20px;
}

.fsm-sub-modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px 20px;
    border-top: 1px solid var(--fsm-border);
}

/* =====================================================
   表單元素
   ===================================================== */

.fsm-form-group {
    margin-bottom: 16px;
}

.fsm-form-group:last-child {
    margin-bottom: 0;
}

.fsm-form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--fsm-text-secondary);
    margin-bottom: 8px;
}

.fsm-form-input,
.fsm-form-select {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--fsm-border-solid);
    border-radius: var(--fsm-radius-sm);
    font-size: 14px;
    color: var(--fsm-text);
    background: var(--fsm-card-bg);
    transition: all var(--fsm-transition);
    box-sizing: border-box;
}

.fsm-form-input:focus,
.fsm-form-select:focus {
    outline: none;
    border-color: var(--fsm-primary);
    box-shadow: 0 0 0 3px var(--fsm-primary-light);
}

/* 名稱編輯器 */
.fsm-name-editor {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
    margin-left: 16px;
}

.fsm-name-input {
    flex: 1;
    border: 1px solid transparent;
    background: transparent;
    font-size: 15px;
    font-weight: 500;
    color: var(--fsm-text);
    padding: 8px 12px;
    border-radius: var(--fsm-radius-sm);
    transition: all var(--fsm-transition);
}

.fsm-name-input:hover:not(:disabled) {
    background: var(--fsm-section-bg);
}

.fsm-name-input:focus {
    outline: none;
    background: var(--fsm-card-bg);
    border-color: var(--fsm-primary);
    box-shadow: 0 0 0 3px var(--fsm-primary-light);
}

.fsm-name-input:disabled {
    color: var(--fsm-text-muted);
    cursor: not-allowed;
}

/* =====================================================
   Loading 狀態
   ===================================================== */

.fsm-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    color: var(--fsm-text-muted);
    gap: 12px;
}

.fsm-loading i {
    font-size: 24px;
    color: var(--fsm-primary);
}

/* =====================================================
   空狀態
   ===================================================== */

.fsm-empty-state {
    text-align: center;
    padding: 40px;
    color: var(--fsm-text-muted);
}

.fsm-empty-state i {
    font-size: 32px;
    margin-bottom: 12px;
    opacity: 0.5;
}

.fsm-empty-state p {
    margin: 0;
    font-size: 14px;
}

.fsm-empty-hint {
    text-align: center;
    padding: 20px;
    font-size: 13px;
    color: var(--fsm-text-muted);
}

/* =====================================================
   右鍵選單
   ===================================================== */

.fsm-context-menu {
    position: fixed;
    background: var(--fsm-card-bg);
    border: 1px solid var(--fsm-border-solid);
    border-radius: var(--fsm-radius-sm);
    box-shadow: var(--fsm-shadow-lg);
    padding: 8px 0;
    min-width: 180px;
    z-index: 1300;
    animation: fsmFadeIn 0.15s ease-out;
}

.fsm-context-menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    font-size: 13px;
    color: var(--fsm-text);
    cursor: pointer;
    transition: all var(--fsm-transition);
}

.fsm-context-menu-item:hover {
    background: var(--fsm-primary-lighter);
    color: var(--fsm-primary);
}

.fsm-context-menu-item i {
    width: 16px;
    text-align: center;
    color: var(--fsm-text-secondary);
}

.fsm-context-menu-item:hover i {
    color: var(--fsm-primary);
}

.fsm-context-menu-item--danger:hover {
    background: var(--color-danger-subtle);
    color: var(--color-danger);
}

.fsm-context-menu-item--danger:hover i {
    color: var(--color-danger);
}

.fsm-context-menu-divider {
    height: 1px;
    background: var(--fsm-border-solid);
    margin: 8px 0;
}

/* =====================================================
   滾動條美化
   ===================================================== */

.fsm-overlay ::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.fsm-overlay ::-webkit-scrollbar-track {
    background: transparent;
}

.fsm-overlay ::-webkit-scrollbar-thumb {
    background: var(--fsm-primary-light);
    border-radius: 4px;
}

.fsm-overlay ::-webkit-scrollbar-thumb:hover {
    background: var(--fsm-primary);
}

/* =====================================================
   響應式調整
   ===================================================== */

/* 平板：三欄變兩欄 */
@media (max-width: 1024px) {
    .fsm--columns-layout .fsm-columns-container {
        grid-template-columns: 1fr 1fr;
        grid-template-rows: 1fr auto;
    }

    .fsm--columns-layout .fsm-column--left {
        grid-row: 1;
    }

    .fsm--columns-layout .fsm-column--center {
        grid-row: 1;
    }

    .fsm--columns-layout .fsm-column--right {
        grid-column: 1 / -1;
        max-height: 300px;
    }
}

/* 手機：單欄 */
@media (max-width: 768px) {
    .fsm-overlay {
        left: 0;  /* 手機版無側邊欄，恢復全屏 */
    }

    .fsm-header {
        padding: 0 16px;
    }

    .fsm-title {
        font-size: 14px;
    }

    .fsm-btn-primary,
    .fsm-btn-secondary {
        padding: 8px 16px;
        font-size: 13px;
    }

    .fsm--columns-layout .fsm-columns-container {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
        padding: 12px;
        gap: 12px;
    }

    .fsm--columns-layout .fsm-column {
        max-height: 280px;
    }

    .fsm--columns-layout .fsm-column--right {
        max-height: 250px;
    }
}

@media (max-width: 480px) {
    .fsm-header-actions {
        flex-direction: column;
        gap: 4px;
    }

    .fsm-btn-secondary {
        display: none;
    }
}