html,
body {
    height: 100%;
    margin: 0;
}

:root {
    --snaptex-web-editor-width: 60vw;
    --snaptex-web-min-editor-width: 280px;
    --snaptex-web-min-preview-width: 360px;
    --snaptex-web-sidebar-width: 250px;
    --snaptex-web-splitter-width: 3px;
    --snaptex-web-topbar-height: 30px;
    --snaptex-web-topbar-peek: 6px;
    --snaptex-preview-font-min: 12px;
    --snaptex-preview-font-max: 40px;
    --snaptex-preview-font-scale: 2.35;
    --snaptex-shell-bg: #f3f4f6;
    --snaptex-ui-fg: #1f2328;
    --snaptex-toolbar-bg: #f8fafc;
    --snaptex-panel-bg: #f8fafc;
    --snaptex-editor-bg: #ffffff;
    --snaptex-editor-fg: #111827;
    --snaptex-preview-bg: #fbfaf7;
    --snaptex-border: #d4d4d8;
    --snaptex-subtle-border: #e5e7eb;
    --snaptex-muted: #64748b;
    --snaptex-editor-active-line-bg: #fafafa;
    --snaptex-button-fg: #1f2937;
    --snaptex-hover-bg: #e5e7eb;
    --snaptex-active-bg: #dbeafe;
    --snaptex-active-fg: #1d4ed8;
    --snaptex-warning-bg: #fff7ed;
    --snaptex-warning-border: #fed7aa;
    --snaptex-warning-fg: #9a3412;
    --snaptex-cm-keyword: #c026d3;
    --snaptex-cm-atom: #dc2626;
    --snaptex-cm-operator: #db2777;
    --snaptex-cm-bracket: #0f172a;
    --snaptex-cm-string: #16a34a;
    --snaptex-cm-variable: #ea580c;
    --snaptex-cm-macro: #2563eb;
    --snaptex-cm-label: #0891b2;
    --snaptex-cm-comment: #64748b;
    --snaptex-cm-meta: #7c3aed;
    --snaptex-cm-invalid: #ef4444;
    --vscode-textLink-foreground: #2563eb;
    --vscode-textLink-activeForeground: #1d4ed8;
    --vscode-scrollbarSlider-background: rgba(88, 88, 88, 0.35);
    --vscode-scrollbarSlider-hoverBackground: rgba(88, 88, 88, 0.48);
    --vscode-scrollbarSlider-activeBackground: rgba(88, 88, 88, 0.62);
}

body[data-theme="dark"] {
    --snaptex-shell-bg: #111827;
    --snaptex-ui-fg: #e5e7eb;
    --snaptex-toolbar-bg: #172033;
    --snaptex-panel-bg: #111827;
    --snaptex-editor-bg: #0f172a;
    --snaptex-editor-fg: #e5e7eb;
    --snaptex-preview-bg: #16181f;
    --snaptex-border: #334155;
    --snaptex-subtle-border: #253247;
    --snaptex-muted: #94a3b8;
    --snaptex-editor-active-line-bg: #141f31;
    --snaptex-button-fg: #f8fafc;
    --snaptex-hover-bg: #263246;
    --snaptex-active-bg: #1e3a8a;
    --snaptex-active-fg: #bfdbfe;
    --snaptex-warning-bg: #422006;
    --snaptex-warning-border: #92400e;
    --snaptex-warning-fg: #fed7aa;
    --snaptex-cm-keyword: #ff5cf4;
    --snaptex-cm-atom: #fb7185;
    --snaptex-cm-operator: #f472b6;
    --snaptex-cm-bracket: #e2e8f0;
    --snaptex-cm-string: #4ade80;
    --snaptex-cm-variable: #fbbf24;
    --snaptex-cm-macro: #60a5fa;
    --snaptex-cm-label: #22d3ee;
    --snaptex-cm-comment: #94a3b8;
    --snaptex-cm-meta: #a78bfa;
    --snaptex-cm-invalid: #f87171;
}

body[data-theme="blue"] {
    --snaptex-shell-bg: #eaf4ff;
    --snaptex-ui-fg: #10233f;
    --snaptex-toolbar-bg: #d9ebff;
    --snaptex-panel-bg: #eef7ff;
    --snaptex-editor-bg: #ffffff;
    --snaptex-preview-bg: #f7fbff;
    --snaptex-border: #9cc7f7;
    --snaptex-subtle-border: #c9def8;
    --snaptex-editor-active-line-bg: #f3f9ff;
    --snaptex-hover-bg: #cfe5ff;
    --snaptex-active-bg: #b7d7ff;
    --snaptex-active-fg: #064ea7;
}

body[data-theme="rose"] {
    --snaptex-shell-bg: #fff1f5;
    --snaptex-ui-fg: #3f1024;
    --snaptex-toolbar-bg: #ffe4ec;
    --snaptex-panel-bg: #fff7fa;
    --snaptex-editor-bg: #ffffff;
    --snaptex-preview-bg: #fffafb;
    --snaptex-border: #f9a8c1;
    --snaptex-subtle-border: #ffd0dd;
    --snaptex-editor-active-line-bg: #fff9fb;
    --snaptex-hover-bg: #ffd6e3;
    --snaptex-active-bg: #fecdd3;
    --snaptex-active-fg: #be123c;
}

body {
    --vscode-editor-background: var(--snaptex-preview-bg);
    --vscode-editor-foreground: var(--snaptex-ui-fg);

    background: var(--snaptex-shell-bg);
    box-sizing: border-box;
    max-width: none;
    padding: 0;
    color: var(--snaptex-ui-fg);
    font-family: "Segoe UI", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.35;
    text-align: initial;
}

#app-shell {
    min-height: 100vh;
}

#workspace {
    display: grid;
    grid-template-columns: var(--snaptex-web-sidebar-width) minmax(var(--snaptex-web-min-editor-width), var(--snaptex-web-editor-width)) var(--snaptex-web-splitter-width) minmax(0, 1fr);
    grid-template-areas: "explorer editor splitter preview";
    align-items: start;
    min-height: 100vh;
}

body[data-explorer-collapsed="true"] {
    --snaptex-web-sidebar-width: 0px;
}

#explorer-panel,
#editor-pane,
#preview-pane {
    min-width: 0;
    min-height: 0;
}

#web-toolbar {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 20;
    display: grid;
    grid-template-columns: max-content minmax(160px, 1fr) max-content;
    align-items: center;
    gap: 12px;
    min-height: var(--snaptex-web-topbar-height);
    padding: 0 10px;
    border-bottom: 1px solid var(--snaptex-border);
    background: var(--snaptex-toolbar-bg);
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.12);
    color: var(--snaptex-ui-fg);
    font-size: 13px;
    transform: translateY(-100%);
    transition: transform 140ms ease;
}

#web-toolbar::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: calc(-1 * var(--snaptex-web-topbar-peek));
    left: 0;
    height: var(--snaptex-web-topbar-peek);
    border-bottom: 1px solid var(--snaptex-border);
    background: var(--snaptex-toolbar-bg);
}

#web-toolbar:hover {
    transform: translateY(0);
}

@supports selector(:has(:focus-visible)) {
    #web-toolbar:has(:focus-visible) {
        transform: translateY(0);
    }
}

.toolbar-group {
    display: flex;
    min-width: 0;
    align-items: center;
    gap: 6px;
}

#snaptex-brand {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-right: 4px;
    color: var(--snaptex-ui-fg);
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
}

#snaptex-brand img {
    width: 22px;
    height: 22px;
    object-fit: contain;
}

.toolbar-actions {
    justify-content: flex-end;
}

.toolbar-paths {
    color: var(--snaptex-muted);
}

#web-toolbar button,
#settings-menu button {
    border: 1px solid transparent;
    border-radius: 4px;
    background: transparent;
    color: var(--snaptex-button-fg);
    cursor: pointer;
    font: inherit;
    padding: 4px 8px;
}

#web-toolbar button:hover,
#web-toolbar button[aria-expanded="true"],
#settings-menu label:hover {
    background: var(--snaptex-hover-bg);
}

#web-toolbar button:disabled {
    color: #9ca3af;
    cursor: default;
}

#web-toolbar button:disabled:hover {
    background: transparent;
}

#project-status,
#active-path-label,
#root-path-label {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

#active-path-label {
    color: var(--snaptex-editor-fg);
    font-weight: 600;
}

#root-path-label {
    padding-left: 8px;
    border-left: 1px solid var(--snaptex-border);
}

#project-status {
    max-width: 34vw;
    color: var(--snaptex-muted);
}

#settings-menu {
    position: absolute;
    top: calc(100% + 4px);
    right: 10px;
    display: grid;
    gap: 4px;
    min-width: 190px;
    padding: 6px;
    border: 1px solid var(--snaptex-border);
    border-radius: 6px;
    background: var(--snaptex-panel-bg);
    box-shadow: 0 14px 28px rgba(15, 23, 42, 0.16);
}

#settings-menu[hidden] {
    display: none;
}

#settings-menu label {
    display: flex;
    align-items: center;
    gap: 8px;
    border-radius: 4px;
    cursor: pointer;
    padding: 5px 6px;
}

.settings-section {
    display: grid;
    gap: 2px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--snaptex-subtle-border);
}

#settings-menu .setting-row {
    justify-content: space-between;
}

#settings-menu input[type="number"],
#settings-menu select {
    width: 96px;
    box-sizing: border-box;
    border: 1px solid var(--snaptex-border);
    border-radius: 4px;
    background: var(--snaptex-editor-bg);
    color: var(--snaptex-editor-fg);
    font: inherit;
    padding: 3px 5px;
}

#explorer-panel {
    grid-area: explorer;
    position: sticky;
    top: 0;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    border-right: 1px solid var(--snaptex-border);
    background: var(--snaptex-panel-bg);
}

body[data-explorer-collapsed="true"] #explorer-panel {
    display: none;
}

.panel-title {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    height: 34px;
    padding: 0 12px;
    border-bottom: 1px solid var(--snaptex-subtle-border);
    color: var(--snaptex-muted);
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0;
    text-transform: uppercase;
}

#editor-pane {
    grid-area: editor;
    position: sticky;
    top: 0;
    display: flex;
    flex-direction: column;
    height: 100vh;
    border-right: 1px solid var(--snaptex-border);
    background: var(--snaptex-editor-bg);
}

#project-files {
    flex: 1 1 auto;
    overflow: auto;
    padding: 6px 4px;
    font-size: 13px;
}

#project-files:empty {
    flex: 0 0 auto;
}

#project-diagnostics {
    display: none;
    flex: 0 0 auto;
    max-height: 120px;
    overflow: auto;
    padding: 8px 12px;
    border-top: 1px solid var(--snaptex-warning-border);
    background: var(--snaptex-warning-bg);
    color: var(--snaptex-warning-fg);
    font-size: 12px;
}

body[data-diagnostics-visible="true"] #project-diagnostics:not(:empty) {
    display: block;
}

#project-diagnostics ul {
    margin: 0;
    padding-left: 18px;
}

.project-tree-row {
    display: grid;
    grid-template-columns: 18px minmax(0, 1fr) max-content;
    align-items: center;
    gap: 4px;
    min-height: 26px;
    border-radius: 4px;
    color: var(--snaptex-ui-fg);
}

.project-tree-row:hover {
    background: var(--snaptex-hover-bg);
}

.project-tree-row[data-active="true"] {
    background: var(--snaptex-active-bg);
    color: var(--snaptex-active-fg);
}

.project-tree-row[data-dirty="true"] .project-file-name::after {
    content: " *";
    color: #b45309;
    font-weight: 700;
}

.project-tree-row[data-root="true"] {
    font-weight: 600;
}

.project-tree-row button {
    border: 1px solid transparent;
    border-radius: 3px;
    background: transparent;
    color: inherit;
    cursor: pointer;
    font: inherit;
    padding: 2px 4px;
}

.project-tree-row button:hover {
    background: rgba(148, 163, 184, 0.22);
}

.project-folder-toggle {
    width: 18px;
    text-align: center;
}

.project-file-open,
.project-folder-label {
    min-width: 0;
    overflow: hidden;
    text-align: left;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.project-folder-label {
    color: var(--snaptex-muted);
    font-weight: 600;
}

.project-file-badge {
    padding-right: 6px;
    color: var(--snaptex-muted);
    font-size: 11px;
}

.project-file-badge:empty {
    display: none;
}

#splitter {
    grid-area: splitter;
    position: sticky;
    top: 0;
    z-index: 2;
    height: 100vh;
    cursor: col-resize;
    background: var(--snaptex-border);
    transition: background 120ms ease;
}

#splitter:hover,
body.is-resizing-split #splitter {
    background: var(--snaptex-muted);
}

body.is-resizing-split {
    cursor: col-resize;
    user-select: none;
}

body.is-resizing-split #editor-pane,
body.is-resizing-split #preview-pane {
    pointer-events: none;
}

#editor {
    flex: 1 1 auto;
    min-height: 0;
}

#editor .cm-editor {
    height: 100%;
    background: var(--snaptex-editor-bg);
    color: var(--snaptex-editor-fg);
    font-size: 14px;
    font-family: Consolas, "Cascadia Code", "Courier New", monospace;
}

#editor .cm-gutters {
    background: var(--snaptex-panel-bg);
    color: var(--snaptex-muted);
    border-right: 1px solid var(--snaptex-subtle-border);
}

#editor .cm-activeLine,
#editor .cm-activeLineGutter {
    background: var(--snaptex-editor-active-line-bg);
}

@keyframes snaptex-editor-jump-flash {
    0% { background: color-mix(in srgb, var(--snaptex-active-bg) 90%, transparent); }
    45% { background: color-mix(in srgb, var(--snaptex-active-bg) 50%, transparent); }
    100% { background: transparent; }
}

#editor .snaptex-editor-jump-highlight {
    animation: snaptex-editor-jump-flash 1.2s ease-out;
}

#editor .cm-cursor {
    border-left-color: var(--snaptex-editor-fg);
}

#preview-pane {
    grid-area: preview;
    background: var(--snaptex-preview-bg);
    font-family: "Times New Roman", "Cambria", "Latin Modern Roman", "Georgia", serif;
    container-type: inline-size;
}

#content-root {
    --base-font-size: clamp(var(--snaptex-preview-font-min), calc(var(--snaptex-preview-font-scale) * 1vw), var(--snaptex-preview-font-max));

    max-width: 920px;
    margin: 0 auto;
    padding: 28px 34px 72px;
    font-size: var(--base-font-size);
    line-height: var(--base-line-height);
    text-align: justify;
}

@supports (font-size: 1cqw) {
    #content-root {
        --base-font-size: clamp(var(--snaptex-preview-font-min), calc(var(--snaptex-preview-font-scale) * 1cqw), var(--snaptex-preview-font-max));
    }
}

body.is-resizing-split #content-root {
    --base-font-size: var(--snaptex-web-resize-preview-font-size, clamp(var(--snaptex-preview-font-min), calc(var(--snaptex-preview-font-scale) * 1vw), var(--snaptex-preview-font-max)));
}

@media (max-width: 820px) {
    #web-toolbar {
        grid-template-columns: 1fr;
        height: auto;
        min-height: var(--snaptex-web-topbar-height);
        padding: 6px 8px;
    }

    #workspace {
        grid-template-columns: 1fr;
        grid-template-rows: auto 42vh 58vh;
        grid-template-areas:
            "explorer"
            "editor"
            "preview";
    }

    body[data-explorer-collapsed="true"] #workspace {
        grid-template-rows: 42vh 58vh;
        grid-template-areas:
            "editor"
            "preview";
    }

    #explorer-panel {
        position: static;
        height: auto;
        max-height: 34vh;
        border-right: 0;
        border-bottom: 1px solid var(--snaptex-border);
    }

    #splitter {
        display: none;
    }

    #editor-pane {
        position: static;
        height: 42vh;
        border-right: 0;
        border-bottom: 1px solid var(--snaptex-border);
    }

    #project-status {
        max-width: none;
    }
}