/* =====================================================
   CODEX Layout Layer for 凸维MATH
   Layout reconstruction: top nav / icon rail / list /
   centered editor / status bar / command palette /
   flat dialogs. Loaded AFTER codestyle.css.
   ===================================================== */

/* ---------- Global shell ---------- */
html, body {
    height: 100%;
    overflow: hidden;
}
body {
    font-size: 13px;
    letter-spacing: -0.006em;
}

/* ---------- Top nav: minimal ---------- */
header.glass-panel {
    height: 48px !important;
    padding: 0 16px !important;
    border-bottom: 1px solid var(--cdx-border) !important;
}
header.glass-panel #appLogoMark {
    width: 24px !important;
    height: 24px !important;
    border-radius: 6px !important;
}
header.glass-panel .brand-title {
    font-size: 14px !important;
}
header.glass-panel #currentWorkspaceName {
    font-size: 12px !important;
    color: var(--cdx-text-secondary) !important;
}
/* Hide busy theme switcher / admin entry / status pill (palette covers them) */
#themeDropdownContainer,
#themeDropdownBtn,
#themeDropdownMenu,
#toggleSidebarBtn,
#adminEntryBtn,
#shutdownBtn,
#apiStatusIndicator {
    display: none !important;
}
/* Slim the dark-mode container (it also hosts the theme dropdown we hide) */
header .flex.items-center.space-x-2.bg-slate-100\/60 {
    background: transparent !important;
    border: none !important;
    padding: 0 !important;
}
/* Hide the divider next to the hidden theme dropdown */
header #themeDropdownContainer + div {
    display: none !important;
}
header .flex.items-center.space-x-4 {
    gap: 4px !important;
}
/* Header buttons -> ghost icon buttons */
header #statsOpenBtn,
header #settingsOpenBtn,
header #logoutBtn {
    background: transparent !important;
    border: none !important;
    border-radius: 6px !important;
    padding: 6px 8px !important;
    font-size: 12px !important;
    color: var(--cdx-text-secondary) !important;
}
header #statsOpenBtn:hover,
header #settingsOpenBtn:hover,
header #logoutBtn:hover {
    background: var(--cdx-bg-muted) !important;
    color: var(--cdx-text-primary) !important;
}
header #statsOpenBtn span,
header #settingsOpenBtn span,
header #logoutBtn span {
    display: none !important;
}
header #darkModeBtn {
    padding: 6px 8px !important;
    border-radius: 6px !important;
    color: var(--cdx-text-secondary) !important;
}
header #darkModeBtn:hover {
    background: var(--cdx-bg-muted) !important;
}
header #currentUserBadge {
    border-radius: 6px !important;
    font-size: 12px !important;
    padding: 5px 10px !important;
    background: var(--cdx-bg-muted) !important;
    border: 1px solid var(--cdx-border) !important;
    color: var(--cdx-text-secondary) !important;
}
header #currentUserBadge i {
    color: var(--cdx-text-tertiary) !important;
}

/* ---------- Main: icon rail + sidebar + content ---------- */
main {
    flex-direction: row !important;
    /* CODEX: header(48px)+statusbar(28px) 已由 flex 布局扣除，禁用旧的 calc(100vh-4rem) 固定高度，防止底部被状态栏遮挡 */
    height: auto !important;
    min-height: 0 !important;
    flex: 1 1 0% !important;
}
/* 预览与侧栏在 flex 容器内正确滚动 */
#previewSection,
#sidebarSection,
#editorSection {
    min-height: 0 !important;
}
/* 预览区：自适应宽度，窄屏自动收缩但保持可读性 */
#previewSection.cdx-preview-section {
    width: clamp(320px, 32%, 480px) !important;
    min-width: 320px !important;
    max-width: 50% !important;
    flex: 0 0 auto !important;
    border-left: 1px solid var(--cdx-border) !important;
    background: var(--cdx-bg-soft) !important;
}

/* Icon rail (injected) */
#codexRail {
    width: 46px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 8px 0;
    background: var(--cdx-bg-soft);
    border-right: 1px solid var(--cdx-border);
    z-index: 30;
}
#codexRail button {
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    border: none;
    background: transparent;
    color: var(--cdx-text-secondary);
    font-size: 13px;
    cursor: pointer;
    position: relative;
    transition: background-color .12s ease, color .12s ease;
}
#codexRail button:hover {
    background: var(--cdx-bg-muted);
    color: var(--cdx-text-primary);
}
#codexRail button.active {
    background: var(--cdx-accent);
    color: var(--cdx-accent-text);
}
#codexRail .rail-tooltip {
    position: absolute;
    left: 40px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--cdx-text-primary);
    color: var(--cdx-accent-text);
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 5px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity .12s ease;
    z-index: 99;
}
#codexRail button:hover .rail-tooltip {
    opacity: 1;
}
#codexRail .rail-sep {
    width: 20px;
    height: 1px;
    background: var(--cdx-border);
    margin: 6px 0;
}

/* ---------- Sidebar integrated view: search + collapsible filters + list (single view) ---------- */
/* 默认收起筛选面板：只显示搜索行 + tabs + 列表 */
#sidebarTopPanel .sv-filter {
    display: none !important;
}
/* 展开筛选面板：筛选器原地显示，列表保持可见（题库与筛选同视图整合） */
body.codex-filters-open #sidebarTopPanel .sv-filter:not(.grid):not(.flex) {
    display: block !important;
}
body.codex-filters-open #sidebarTopPanel .sv-filter.grid {
    display: grid !important;
}
body.codex-filters-open #sidebarTopPanel .sv-filter.flex {
    display: flex !important;
}
/* 搜索行右侧的筛选开关按钮 */
#codexFilterToggle {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    border: 1px solid var(--cdx-border);
    background: var(--cdx-surface);
    color: var(--cdx-text-tertiary);
    font-size: 11px;
    cursor: pointer;
    flex-shrink: 0;
    transition: background-color .12s ease, color .12s ease;
}
#codexFilterToggle:hover {
    background: var(--cdx-bg-muted);
    color: var(--cdx-text-primary);
}
body.codex-filters-open #codexFilterToggle {
    background: var(--cdx-accent);
    color: var(--cdx-accent-text);
    border-color: var(--cdx-accent);
}
/* 收起筛选面板时，搜索区容器去掉底部分隔（视觉更干净） */
#sidebarTopPanel > div.p-3.border-b {
    border-bottom-color: var(--cdx-border) !important;
}

/* Sidebar width tweak */
#sidebarSection {
    width: 300px !important;
}
/* 搜索+筛选区：筛选展开时内部滚动，不推挤固定的 tab 栏与题目列表 */
#sidebarTopPanel {
    max-height: 55% !important;
    flex-shrink: 1 !important;
    min-height: 0 !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
}
/* tab 栏（本地题库/草稿箱）固定在筛选区之下、列表之上，始终可见 */
#codexSidebarTabs {
    flex-shrink: 0 !important;
    background: var(--cdx-bg-soft) !important;
}
/* 禁用旧的侧栏垂直拖拽条（防止列表区被上推遮盖筛选栏） */
#sidebar-resizer-v {
    display: none !important;
}
#sidebarTopPanel > div.p-3.border-b {
    padding: 10px !important;
}
/* Hide redundant in-sidebar create buttons (now in rail + palette) */
#sidebarTopPanel > div.px-4.py-2.grid,
#aiGenOpenBtn,
#sidebarTopPanel .px-4.pb-2.shrink-0 {
    display: none !important;
}
/* Sidebar tabs -> underline style */
#sidebarTopPanel .glass-tab {
    gap: 0 !important;
    border-bottom: 1px solid var(--cdx-border) !important;
    padding: 0 10px !important;
}
#sidebarTopPanel .glass-tab-item {
    background: transparent !important;
    border-radius: 0 !important;
    padding: 8px 12px !important;
    color: var(--cdx-text-tertiary) !important;
    font-size: 12px !important;
    border-bottom: 1.5px solid transparent !important;
    margin-bottom: -1px;
}
#sidebarTopPanel .glass-tab-item.active {
    background: transparent !important;
    color: var(--cdx-text-primary) !important;
    border-bottom-color: var(--cdx-text-primary) !important;
}

/* Question list rows */
#questionsList {
    padding: 8px !important;
}
.question-card {
    background: transparent !important;
    border: 1px solid transparent !important;
    border-radius: 8px !important;
    padding: 9px 10px !important;
    margin: 0 !important;
    box-shadow: none !important;
    transition: background-color .12s ease, border-color .12s ease;
}
.question-card:hover {
    background: var(--cdx-bg-soft) !important;
    border-color: var(--cdx-border) !important;
}
.question-card.active {
    background: var(--cdx-bg-muted) !important;
    border-color: var(--cdx-border-strong) !important;
}
.question-card [class*="bg-slate-100"],
.question-card [class*="bg-brand-50"] {
    background: var(--cdx-bg-muted) !important;
    color: var(--cdx-text-secondary) !important;
    border: 1px solid var(--cdx-border) !important;
    box-shadow: none !important;
}
.question-card .line-clamp-2 {
    font-size: 12px !important;
    color: var(--cdx-text-primary) !important;
}
/* Inline row actions: keep delete hidden until hover (already group-hover) */
.question-card button[aria-label="删除题目"] {
    color: var(--cdx-text-tertiary) !important;
}
.question-card button[aria-label="删除题目"]:hover {
    color: var(--cdx-text-primary) !important;
    background: var(--cdx-bg-muted) !important;
}

/* ---------- Editor content: centered column ---------- */
#editorSection > .p-6 {
    max-width: 760px;
    margin: 0 auto;
    padding: 24px 28px !important;
}
#editorSection .glass-panel {
    background: var(--cdx-surface) !important;
    border: 1px solid var(--cdx-border) !important;
    border-radius: 10px !important;
    box-shadow: none !important;
    backdrop-filter: none !important;
}
#editorSection .glass-panel .bg-white\/50,
#editorSection .glass-panel .bg-white\/40 {
    background: var(--cdx-bg) !important;
    border-color: var(--cdx-border) !important;
}
#editorSection h3 {
    font-size: 12px !important;
    color: var(--cdx-text-secondary) !important;
    text-transform: none !important;
    letter-spacing: 0 !important;
}

/* ---------- Preview panel: collapsible + independently scrollable ---------- */
#previewSection {
    transition: width .18s ease, min-width .18s ease, opacity .18s ease;
    /* 关键：保留纵向滚动（内容看不全时可上下滚），仅横向隐藏 */
    overflow-y: auto !important;
    overflow-x: hidden !important;
}
body.preview-collapsed #previewSection {
    width: 0 !important;
    min-width: 0 !important;
    max-width: 0 !important;
    opacity: 0;
    border-left: none !important;
}

/* ---------- Preview paper card: maximize usable width for analysis/content boxes ---------- */
#previewSection .paper-card {
    width: 100% !important;
    box-sizing: border-box !important;
}
/* Reduce the generous internal padding so content boxes use more horizontal space */
#previewSection .paper-card > div.p-6,
#previewSection .paper-card div[class*="flex-1"].space-y-6 {
    padding: 16px !important;
}
#previewSection .paper-card div[class*="flex-1"].space-y-6 .preview-box {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
}
/* Analysis panel header and content full-width */
#paperAnalysisWrapper {
    width: 100% !important;
}
#paperAnalysisContent {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
}

/* ---------- Preview panel: CODEX-style compact polish ---------- */
/* 顶部标题栏紧凑化 */
#previewSection > .sticky.top-0 {
    padding: 8px 14px !important;
    border-bottom: 1px solid var(--cdx-border) !important;
    background: var(--cdx-bg-soft) !important;
    backdrop-filter: none !important;
}
#previewSection > .sticky.top-0 .font-bold {
    font-size: 12px !important;
    color: var(--cdx-text-secondary) !important;
    letter-spacing: 0 !important;
}
/* 试卷卡片外层留白收紧 */
#previewSection > div.px-3.py-4 {
    padding: 10px 10px 16px !important;
}
/* 试卷卡片本体：克制圆角与边框 */
#previewSection .paper-card {
    border-radius: 8px !important;
    border: 1px solid var(--cdx-border-strong) !important;
    box-shadow: none !important;
}
/* 顶部色条：细线化 */
#previewSection .paper-card > .h-2 {
    height: 3px !important;
}
/* 学校头：紧凑 */
#previewSection .paper-card > div.p-6.text-center {
    padding: 12px 16px !important;
}
#previewSection .paper-card > div.p-6.text-center h4 {
    font-size: 13px !important;
}
/* 底部页脚：紧凑 */
#previewSection .paper-card > div.p-4.border-t {
    padding: 8px 14px !important;
}
/* 隐藏/显示解析按钮：小号幽灵化 */
#toggleAnalysisBtn {
    padding: 3px 8px !important;
    font-size: 11px !important;
    border-radius: 6px !important;
}
#codexPreviewToggle {
    position: absolute;
    top: 60px;
    right: 14px;
    z-index: 60;
    width: 30px;
    height: 30px;
    border-radius: 7px;
    border: 1px solid var(--cdx-border);
    background: var(--cdx-surface);
    color: var(--cdx-text-secondary);
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: none;
}
#codexPreviewToggle:hover {
    background: var(--cdx-bg-muted);
    color: var(--cdx-text-primary);
}
body.preview-collapsed #codexPreviewToggle {
    right: 10px;
}
body:not(.preview-collapsed) #codexPreviewToggle .fa-angles-left { display: inline; }
body:not(.preview-collapsed) #codexPreviewToggle .fa-angles-right { display: none; }
body.preview-collapsed #codexPreviewToggle .fa-angles-left { display: none; }
body.preview-collapsed #codexPreviewToggle .fa-angles-right { display: inline; }

/* ---------- Column resizers (drag to resize sidebar / preview) ---------- */
#resizer-1,
#resizer-2 {
    width: 4px !important;
    flex-shrink: 0 !important;
    cursor: col-resize !important;
    background: transparent !important;
    z-index: 35 !important;
    transition: background-color .12s ease;
}
#resizer-1:hover,
#resizer-2:hover {
    background: var(--cdx-border-strong) !important;
}
body.codex-resizing #resizer-1,
body.codex-resizing #resizer-2 {
    background: var(--cdx-text-tertiary) !important;
}
/* 拖拽时全局光标与禁用选择、禁用宽度过渡动画 */
body.codex-resizing {
    cursor: col-resize !important;
    user-select: none !important;
}
body.codex-resizing * {
    cursor: col-resize !important;
}
body.codex-resizing #sidebarSection,
body.codex-resizing #previewSection {
    transition: none !important;
}
/* 预览折叠时隐藏右 resizer */
body.preview-collapsed #resizer-2 {
    display: none !important;
}

/* ---------- Status bar (bottom) ---------- */
#codexStatusBar {
    height: 28px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 14px;
    background: var(--cdx-bg-soft);
    border-top: 1px solid var(--cdx-border);
    font-size: 11px;
    color: var(--cdx-text-tertiary);
    user-select: none;
    z-index: 40;
}
#codexStatusBar kbd {
    font-family: var(--font-mono, ui-monospace, SFMono-Regular, Menlo, Consolas, monospace);
    font-size: 10px;
    padding: 1px 5px;
    border: 1px solid var(--cdx-border);
    border-radius: 4px;
    background: var(--cdx-surface);
    color: var(--cdx-text-secondary);
}
#codexStatusBar .sb-right {
    color: var(--cdx-text-tertiary);
}

/* ---------- Command palette ---------- */
#codexPaletteOverlay {
    position: fixed;
    inset: 0;
    z-index: 9000;
    background: rgba(0, 0, 0, 0.35);
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 12vh;
}
#codexPaletteOverlay.open {
    display: flex;
}
#codexPalette {
    width: min(560px, 92vw);
    background: var(--cdx-surface);
    border: 1px solid var(--cdx-border-strong);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.18);
}
#codexPaletteInput {
    width: 100%;
    border: none;
    outline: none;
    background: transparent;
    color: var(--cdx-text-primary);
    font-size: 14px;
    padding: 14px 16px;
    border-bottom: 1px solid var(--cdx-border);
}
#codexPaletteInput::placeholder {
    color: var(--cdx-text-tertiary);
}
#codexPaletteList {
    max-height: 340px;
    overflow-y: auto;
    padding: 6px;
}
.codex-palette-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    color: var(--cdx-text-primary);
}
.codex-palette-item .cpi-icon {
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    background: var(--cdx-bg-muted);
    color: var(--cdx-text-secondary);
    font-size: 11px;
    flex-shrink: 0;
}
.codex-palette-item .cpi-desc {
    color: var(--cdx-text-tertiary);
    font-size: 11px;
    margin-left: auto;
}
.codex-palette-item .cpi-shortcut {
    font-family: var(--font-mono, ui-monospace, SFMono-Regular, Menlo, Consolas, monospace);
    font-size: 10px;
    color: var(--cdx-text-tertiary);
    border: 1px solid var(--cdx-border);
    border-radius: 4px;
    padding: 1px 5px;
    flex-shrink: 0;
}
.codex-palette-item.hover,
.codex-palette-item:hover {
    background: var(--cdx-bg-muted);
}
#codexPaletteEmpty {
    padding: 18px;
    text-align: center;
    color: var(--cdx-text-tertiary);
    font-size: 12px;
}

/* ---------- Dialogs: flat, centered ---------- */
.glass-modal-overlay,
#importModal,
#settingsModal,
#statsModal {
    background: rgba(0, 0, 0, 0.4) !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
}
.glass-modal-overlay > div,
#importModal > div,
#settingsModal > div,
#statsModal > div,
#aiGenModal > div {
    border-radius: 12px !important;
    border: 1px solid var(--cdx-border) !important;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.16) !important;
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
}

/* ---------- Paper workspace also gets rail-aware layout ---------- */
body[data-ws="paper"] #codexRail {
    display: none !important;
}
body[data-ws="paper"] #sidebarSection {
    width: 260px !important;
}

/* ---------- Misc flatten ---------- */
.glass-dropdown {
    border-radius: 10px !important;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.10) !important;
}
.glass-input,
.glass-select,
input.glass-input,
select.glass-select {
    border-radius: 8px !important;
    font-size: 12px !important;
}
/* KaTeX sizing inside list */
.question-card .katex {
    font-size: 0.95em !important;
}