:root {
    --vn-top-row-bg: #f7f7f7;
    --vn-top-row-border: #d6d5d5;
    --vn-nav-icon-filter: brightness(0) opacity(0.54);
    --vn-sidebar-bg: #f0eeff;
    --vn-note-header-bg: #f8f9fa;
    --vn-note-header-color: #555;
    --vn-note-hover-bg: #f0f0f0;
    --vn-note-selected-bg: #fff3cd;
    --vn-board-drop-target-bg: #fff3cd;
    /* Editor */
    --vn-editor-bg: #ffffff;
    --vn-editor-title-border: #e0e0e0;
    --vn-editor-blockquote-border: #dee2e6;
    --vn-editor-blockquote-color: #6c757d;
    --vn-editor-code-bg: #f1f3f5;
    --vn-editor-code-color: #c92a2a;
    --vn-editor-pre-bg: #f8f9fa;
    --vn-editor-hr-color: #dee2e6;
    --vn-link-popover-bg: #ffffff;
    --vn-link-popover-border: #dee2e6;
    --vn-link-popover-color: #333;
    --vn-slash-menu-active-bg: #ede9ff;
    --vn-conflict-bg: #fff3cd;
    --vn-conflict-border: #e6a817;
    --vn-conflict-color: #5c4000;
}

body.dark-mode {
    --vn-top-row-bg: #1e1e1e;
    --vn-top-row-border: #333;
    --vn-nav-icon-filter: none;
    --vn-sidebar-bg: var(--mud-palette-drawer-background);
    --vn-note-header-bg: #1a1a2a;
    --vn-note-header-color: #aaa;
    --vn-note-hover-bg: #2a2a3e;
    --vn-note-selected-bg: #1e3352;
    --vn-board-drop-target-bg: #2a2a3e;
    /* Editor */
    --vn-editor-bg: #1c1c2a;
    --vn-editor-title-border: #3a3a4e;
    --vn-editor-blockquote-border: #4a4a5e;
    --vn-editor-blockquote-color: #9ba4ae;
    --vn-editor-code-bg: #2a2a3e;
    --vn-editor-code-color: #ff8080;
    --vn-editor-pre-bg: #22222e;
    --vn-editor-hr-color: #3a3a4e;
    --vn-link-popover-bg: #2a2a3e;
    --vn-link-popover-border: #4a4a5e;
    --vn-link-popover-color: #e0e0e0;
    --vn-slash-menu-active-bg: #38385e;
    --vn-conflict-bg: #2a1f00;
    --vn-conflict-border: #c68a00;
    --vn-conflict-color: #ffd166;
    background-color: #121212;
    color: #e0e0e0;
}

html, body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    height: 100%;
    overflow: hidden;
}

#app {
    height: 100%;
    display: flex;
    flex-direction: column;
}

h1:focus {
    outline: none;
}

a, .btn-link {
    color: #0071c1;
}

.btn-primary {
    color: #fff;
    background-color: var(--mud-palette-primary);
    border-color: var(--mud-palette-primary-darken);
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active {
    color: #fff;
    background-color: var(--mud-palette-primary-darken);
    border-color: var(--mud-palette-primary-darken);
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

.content {
    padding-top: 1.1rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    min-height: 0;
}

.valid.modified:not([type=checkbox]) {
    outline: 1px solid #26b050;
}

.invalid {
    outline: 1px solid red;
}

.validation-message {
    color: red;
}

#blazor-error-ui {
    background: #fff8dc;
    color: #5a4a00;
    bottom: 0;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.2);
    box-sizing: border-box;
    display: none;
    left: 0;
    padding: 0.6rem 1.25rem 0.7rem 1.25rem;
    position: fixed;
    width: 100%;
    z-index: 1000;
}

#blazor-error-ui a {
    color: #0057a8;
}

body.dark-mode #blazor-error-ui {
    background: #2a2600;
    color: #f0d060;
    box-shadow: 0 -1px 2px rgba(0, 0, 0, 0.5);
}

body.dark-mode #blazor-error-ui a {
    color: #7eb8f7;
}

    #blazor-error-ui .dismiss {
        cursor: pointer;
        position: absolute;
        right: 0.75rem;
        top: 0.5rem;
    }

.blazor-error-boundary {
    background: url(data:image/svg+xml;base64,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) no-repeat 1rem/1.8rem, #b32121;
    padding: 1rem 1rem 1rem 3.7rem;
    color: white;
}

    .blazor-error-boundary::after {
        content: "An error has occurred."
    }

.loading-progress {
    position: absolute;
    display: block;
    width: 8rem;
    height: 8rem;
    inset: 20vh 0 auto 0;
    margin: 0 auto 0 auto;
}

    .loading-progress circle {
        fill: none;
        stroke: #e0e0e0;
        stroke-width: 0.6rem;
        transform-origin: 50% 50%;
        transform: rotate(-90deg);
    }

        .loading-progress circle:last-child {
            stroke: #1b6ec2;
            stroke-dasharray: calc(3.141 * var(--blazor-load-percentage, 0%) * 0.8), 500%;
            transition: stroke-dasharray 0.05s ease-in-out;
        }

.loading-progress-text {
    position: absolute;
    text-align: center;
    font-weight: bold;
    inset: calc(20vh + 3.25rem) 0 auto 0.2rem;
}

    .loading-progress-text:after {
        content: var(--blazor-load-percentage-text, "Loading");
    }

code {
    color: #c02d76;
}

/* ── Syntax highlighting — GitHub light theme ────────────────────────────── */
.hljs-comment,
.hljs-quote                          { color: #6a737d; font-style: italic; }
.hljs-keyword,
.hljs-selector-tag,
.hljs-literal,
.hljs-section,
.hljs-link                           { color: #d73a49; }
.hljs-string,
.hljs-regexp,
.hljs-addition                       { color: #032f62; }
.hljs-number,
.hljs-meta,
.hljs-template-variable,
.hljs-attribute                      { color: #005cc5; }
.hljs-title,
.hljs-selector-id                    { color: #6f42c1; }
.hljs-type,
.hljs-selector-class,
.hljs-built_in,
.hljs-bullet,
.hljs-code                           { color: #e36209; }
.hljs-variable,
.hljs-name,
.hljs-selector-attr,
.hljs-selector-pseudo,
.hljs-symbol                         { color: #22863a; }
.hljs-deletion                       { color: #b31d28; }
.hljs-emphasis                       { font-style: italic; }
.hljs-strong                         { font-weight: bold; }

/* ── Syntax highlighting — dark mode override ────────────────────────────── */
body.dark-mode .hljs-comment,
body.dark-mode .hljs-quote                          { color: #8b949e; }
body.dark-mode .hljs-keyword,
body.dark-mode .hljs-selector-tag,
body.dark-mode .hljs-literal,
body.dark-mode .hljs-section,
body.dark-mode .hljs-link                           { color: #ff7b72; }
body.dark-mode .hljs-string,
body.dark-mode .hljs-regexp,
body.dark-mode .hljs-addition                       { color: #a5d6ff; }
body.dark-mode .hljs-number,
body.dark-mode .hljs-meta,
body.dark-mode .hljs-template-variable,
body.dark-mode .hljs-attribute                      { color: #79c0ff; }
body.dark-mode .hljs-title,
body.dark-mode .hljs-selector-id                    { color: #d2a8ff; }
body.dark-mode .hljs-type,
body.dark-mode .hljs-selector-class,
body.dark-mode .hljs-built_in,
body.dark-mode .hljs-bullet,
body.dark-mode .hljs-code                           { color: #ffa657; }
body.dark-mode .hljs-variable,
body.dark-mode .hljs-name,
body.dark-mode .hljs-selector-attr,
body.dark-mode .hljs-selector-pseudo,
body.dark-mode .hljs-symbol                         { color: #7ee787; }
body.dark-mode .hljs-deletion                       { color: #ffa198; }

/* TipTap bubble menu — appended to body, must be global */
.tiptap-bubble-menu {
    display: flex;
    align-items: center;
    background: #1f1f1f;
    border-radius: 6px;
    padding: 4px 6px;
    gap: 2px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    z-index: 9999;
}

.tiptap-bubble-menu button {
    background: none;
    border: none;
    color: #fff;
    font-size: 0.78rem;
    font-weight: 600;
    padding: 3px 7px;
    border-radius: 4px;
    cursor: pointer;
    min-width: 26px;
    line-height: 1.4;
}

.tiptap-bubble-menu button:hover {
    background: #3a3a3a;
}

.bubble-sep {
    width: 1px;
    height: 16px;
    background: #444;
    margin: 0 3px;
    flex-shrink: 0;
}

/* TipTap link popover */
.tiptap-link-popover {
    position: fixed;
    display: flex;
    align-items: center;
    background: var(--vn-link-popover-bg);
    border: 1px solid var(--vn-link-popover-border);
    border-radius: 6px;
    padding: 5px 8px;
    gap: 4px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
    z-index: 9999;
}

.tiptap-link-popover .link-input {
    border: none;
    outline: none;
    font-size: 0.85rem;
    width: 260px;
    color: var(--vn-link-popover-color);
    background: transparent;
}

.tiptap-link-popover .link-btn {
    background: none;
    border: none;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.8rem;
    color: var(--vn-link-popover-color);
    flex-shrink: 0;
}

.tiptap-link-popover .link-btn:hover {
    background: var(--vn-editor-code-bg);
}

.tiptap-link-popover .link-remove {
    color: #dc3545;
}

/* Upload progress toast */
.upload-toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--vn-link-popover-bg);
    border: 1px solid var(--vn-link-popover-border);
    border-radius: 8px;
    padding: 10px 14px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
    z-index: 99999;
    min-width: 260px;
    font-size: 0.85rem;
    color: var(--vn-link-popover-color);
    transition: opacity 0.3s;
}

.upload-toast-name {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    max-width: 160px;
}

.upload-toast-bar-wrap {
    width: 64px;
    height: 4px;
    background: var(--vn-editor-code-bg);
    border-radius: 2px;
    overflow: hidden;
    flex-shrink: 0;
}

.upload-toast-bar {
    height: 100%;
    width: 0%;
    background: var(--mud-palette-primary, #7c4dff);
    border-radius: 2px;
    transition: width 0.15s;
}

.upload-toast-pct {
    width: 34px;
    text-align: right;
    flex-shrink: 0;
}

.upload-toast-done { opacity: 0; }

.upload-toast-error .upload-toast-bar { background: #dc3545; }
.upload-toast-error .upload-toast-pct::after { content: ' Failed'; color: #dc3545; }

/* File attachment link */
a.file-attachment {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 1px 8px;
    border-radius: 4px;
    background: var(--vn-editor-code-bg);
    color: var(--vn-editor-code-color);
    text-decoration: none;
    font-size: 0.88em;
    font-family: inherit;
    border: 1px solid var(--vn-editor-title-border);
    cursor: pointer;
    white-space: nowrap;
}

a.file-attachment:hover {
    text-decoration: underline;
    opacity: 0.85;
}

/* Drag-over visual feedback */
.ProseMirror.drag-over {
    outline: 2px dashed var(--mud-palette-primary, #7c4dff);
    border-radius: 4px;
}

/* Pasted images */
.tiptap-image {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 6px;
    margin: 0.5rem 0;
    cursor: default;
}

.tiptap-image.ProseMirror-selectednode {
    outline: 2px solid var(--mud-palette-primary, #7c4dff);
    border-radius: 6px;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
    color: var(--bs-secondary-color);
    text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
    text-align: start;
}

/* Slash command menu — appended to body, must be global */
.slash-menu {
    position: fixed;
    z-index: 9999;
    background: var(--vn-link-popover-bg);
    border: 1px solid var(--vn-link-popover-border);
    border-radius: 8px;
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
    padding: 4px;
    min-width: 260px;
    max-height: 320px;
    overflow-y: auto;
}

.slash-menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    user-select: none;
}

.slash-menu-item:hover,
.slash-menu-item-active {
    background: var(--vn-slash-menu-active-bg);
}

.slash-menu-icon {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--vn-link-popover-color);
    width: 28px;
    text-align: center;
    flex-shrink: 0;
    font-family: monospace;
}

.slash-menu-text {
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.slash-menu-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--vn-link-popover-color);
    line-height: 1.3;
}

.slash-menu-desc {
    font-size: 0.75rem;
    color: var(--vn-link-popover-color);
    opacity: 0.6;
    line-height: 1.3;
}

/* Page link block — inserted by /page slash command */
.page-link-block {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    margin: 4px 0;
    border-radius: 6px;
    background: var(--vn-editor-code-bg);
    border: 1px solid var(--vn-editor-title-border);
    cursor: pointer;
    user-select: none;
    color: var(--vn-link-popover-color);
    transition: background 0.15s;
}

.page-link-block:hover {
    background: var(--vn-slash-menu-active-bg);
}

.page-link-icon {
    font-size: 1rem;
    flex-shrink: 0;
    line-height: 1;
}

.page-link-title {
    font-size: 0.9rem;
    font-weight: 500;
    line-height: 1.4;
}

/* Settings page */
.settings-page {
    max-width: 560px;
    padding: 1.5rem 0;
}

.settings-page h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.75rem;
}

.settings-section {
    margin-bottom: 2rem;
}

.settings-section-title {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    opacity: 0.55;
    margin-bottom: 0.75rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid rgba(0,0,0,0.1);
}

body.dark-mode .settings-section-title {
    border-bottom-color: rgba(255,255,255,0.1);
}

.settings-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem 0;
}

.settings-label {
    flex: 1;
    font-size: 0.925rem;
}

.settings-select {
    width: 180px;
    flex-shrink: 0;
}

.settings-actions {
    margin-top: 0.5rem;
}