/* CSS Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* CSS Variables - Light Mode (default) */
:root {
    --color-base: #faf4ed;
    --color-surface: #fffaf3;
    --color-overlay: #f2e9e1;
    --color-text: #1f1d2e;
    --color-muted: #635e74;
    --color-subtle: #4a4560;
    --color-emphasis: #1e1a2d;
    --color-primary: #907aa9;
    --color-secondary: #56949f;
    --color-tertiary: #286983;
    --color-error: #b4637a;
    --color-warning: #ea9d34;
    --color-success: #286983;
    --color-border: #dfdad9;
    --color-link: #d7827e;
    --color-highlight: #cecacd;

    --font-body: 'Adobe Caslon Pro','Latin Modern Roman','Times New Roman','serif';
    --font-heading: 'IBM Plex Sans','system-ui','sans-serif';
    --font-mono: 'Ioskeley Mono','IBM Plex Mono','Berkeley Mono','Consolas','monospace';

    --spacing-base: 16px;
    --spacing-line-height: 1.6;
    --spacing-scale: 1.25;
}

/* CSS Variables - Dark Mode */
@media (prefers-color-scheme: dark) {
    :root {
        --color-base: #191724;
        --color-surface: #1f1d2e;
        --color-overlay: #26233a;
        --color-text: #e0def4;
        --color-muted: #6e6a86;
        --color-subtle: #908caa;
        --color-emphasis: #e0def4;
        --color-primary: #c4a7e7;
        --color-secondary: #9ccfd8;
        --color-tertiary: #ebbcba;
        --color-error: #eb6f92;
        --color-warning: #f6c177;
        --color-success: #31748f;
        --color-border: #403d52;
        --color-link: #ebbcba;
        --color-highlight: #524f67;
    }
}

/* Base Styles */
html {
    font-size: var(--spacing-base);
    line-height: var(--spacing-line-height);
}

/* Scoped to notebook-content container */
.notebook-content {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-base);
    margin: 0 auto;
    padding: 1rem 0rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    margin-top: calc(1rem * var(--spacing-scale));
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

h1 {
  font-size: 2rem;
  color: var(--color-secondary);
}
h2 {
  font-size: 1.5rem;
  color: var(--color-primary);
}
h3 {
  font-size: 1.25rem;
  color: var(--color-secondary);
}
h4 {
  font-size: 1.2rem;
  color: var(--color-tertiary);
}
h5 {
  font-size: 1.125rem;
  color: var(--color-secondary);
}
h6 { font-size: 1rem; }

p {
    margin-bottom: 1rem;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

a {
    color: var(--color-link);
    text-decoration: none;
}

.notebook-content a:hover {
    color: var(--color-emphasis);
    text-decoration: underline;
}

/* Wikilink validation (editor) */
.link-valid {
    color: var(--color-link);
}

.link-broken {
    color: var(--color-error);
    text-decoration: underline wavy;
    text-decoration-color: var(--color-error);
    opacity: 0.8;
}

/* Selection */
::selection {
    background: var(--color-highlight);
    color: var(--color-text);
}

/* Lists */
ul, ol {
    margin-left: 1rem;
    margin-bottom: 1rem;
}

li {
    margin-bottom: 0.25rem;
}

/* Code */
code {
    font-family: var(--font-mono);
    background: var(--color-surface);
    padding: 0.125rem 0.25rem;
    border-radius: 4px;
    font-size: 0.9em;
}

pre {
    overflow-x: auto;
    margin-bottom: 1rem;
    border-radius: 5px;
    border: 1px solid var(--color-border);
    box-sizing: border-box;
}

/* Code blocks inside pre are handled by syntax theme */
pre code {

    display: block;
    width: fit-content;
    min-width: 100%;
    padding: 1rem;
    background: var(--color-surface);
}

/* Math */
.math {
    font-family: var(--font-mono);
}

.math-display {
    display: block;
    margin: 1rem 0;
    text-align: center;
}

/* Blockquotes */
blockquote {
    border-left: 2px solid var(--color-secondary);
    background: var(--color-surface);
    padding-left: 1rem;
    padding-right: 1rem;
    padding-top: 0.5rem;
    padding-bottom: 0.04rem;
    margin: 1rem 0;
    font-size: 0.95em;
    border-bottom-right-radius: 5px;
    border-top-right-radius: 5px;
}
}

/* Tables */
table {
    border-collapse: collapse;
    width: 100%;
    margin-bottom: 1rem;
    display: block;
    overflow-x: auto;
    max-width: 100%;
}

th, td {
    border: 1px solid var(--color-border);
    padding: 0.5rem;
    text-align: left;
}

th {
    background: var(--color-surface);
    font-weight: 600;
}

tr:hover {
    background: var(--color-surface);
}

/* Footnotes */
.footnote-reference {
    font-size: 0.8em;
    color: var(--color-subtle);
}

.footnote-definition {
    margin-top: 2rem;
    padding-top: 0.5rem;
    border-top: 1px solid var(--color-border);
    font-size: 0.9em;
}

.footnote-definition-label {
    font-weight: 600;
    margin-right: 0.5rem;
    color: var(--color-primary);
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1rem 0;
    border-radius: 4px;
}

/* AT Protocol Embeds - Container */
/* Light mode: paper with shadow, dark mode: blueprint with borders */
.atproto-embed {
    display: block;
    position: relative;
    max-width: 550px;
    margin: 1rem 0;
    padding: 1rem;
    background: var(--color-surface);
    border-left: 2px solid var(--color-secondary);
    box-shadow: 0 1px 2px color-mix(in srgb, var(--color-text) 8%, transparent);
}

.atproto-embed:hover {
    border-left-color: var(--color-primary);
}

@media (prefers-color-scheme: dark) {
    .atproto-embed {
        box-shadow: none;
        border: 1px solid var(--color-border);
        border-left: 2px solid var(--color-secondary);
    }
}

.atproto-embed-placeholder {
    color: var(--color-muted);
    font-style: italic;
}

.embed-loading {
    display: block;
    padding: 0.5rem 0;
    color: var(--color-subtle);
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

/* Embed Author Block */
.embed-author {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.embed-avatar {
    width: 36px;
    height: 36px;
    max-width: 36px;
    max-height: 36px;
    aspect-ratio: 1;
    margin: 0;
    object-fit: cover;
}

.embed-author-info {
    display: flex;
    flex-direction: column;
    gap: 0;
    min-width: 0;
}

.embed-avatar-link {
    display: block;
    flex-shrink: 0;
}

.embed-author-name {
    font-weight: 600;
    color: var(--color-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    text-decoration: none;
    line-height: 1.2;
}

a.embed-author-name:hover {
    color: var(--color-link);
}

.embed-author-handle {
    font-size: 0.85em;
    font-family: var(--font-mono);
    color: var(--color-subtle);
    text-decoration: none;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    line-height: 1.2;
}

.embed-author-handle:hover {
    color: var(--color-link);
}

/* Card-wide clickable link (sits behind content) */
.embed-card-link {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.embed-card-link:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Interactive elements sit above the card link */
.embed-author,
.embed-external,
.embed-quote,
.embed-images,
.embed-meta {
    position: relative;
    z-index: 1;
}

/* Embed Content Block */
.embed-content {
    display: block;
    color: var(--color-text);
    line-height: 1.5;
    margin-bottom: 0.75rem;
    white-space: pre-wrap;
}

.embed-description {
    display: block;
    color: var(--color-text);
    font-size: 0.95em;
    line-height: 1.4;
}

/* Embed Metadata Block */
.embed-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85em;
    color: var(--color-muted);
    margin-top: 0.75rem;
}

.embed-stats {
    display: flex;
    gap: 1rem;
    font-family: var(--font-mono);
}

.embed-stat {
    color: var(--color-subtle);
    font-size: 0.9em;
}

.embed-time {
    color: var(--color-subtle);
    text-decoration: none;
    font-family: var(--font-mono);
    font-size: 0.9em;
}

.embed-time:hover {
    color: var(--color-link);
}

.embed-type {
    font-size: 0.8em;
    color: var(--color-subtle);
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Embed URL link (shown with syntax in editor) */
.embed-url {
    color: var(--color-link);
    font-family: var(--font-mono);
    font-size: 0.9em;
    word-break: break-all;
}

/* External link cards */
.embed-external {
    display: flex;
    gap: 0.75rem;
    padding: 0.75rem;
    background: var(--color-surface);
    border: 1px dashed var(--color-border);
    text-decoration: none;
    color: inherit;
    margin-top: 0.5rem;
}

.embed-external:hover {
    border-left: 2px solid var(--color-primary);
    margin-left: -1px;
}

@media (prefers-color-scheme: dark) {
    .embed-external {
        border: 1px solid var(--color-border);
    }

    .embed-external:hover {
        border-left: 2px solid var(--color-primary);
        margin-left: -1px;
    }
}

.embed-external-thumb {
    width: 120px;
    height: 80px;
    object-fit: cover;
    flex-shrink: 0;
}

.embed-external-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    min-width: 0;
}

.embed-external-title {
    font-weight: 600;
    color: var(--color-text);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.embed-external-description {
    font-size: 0.9em;
    color: var(--color-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.embed-external-url {
    font-size: 0.8em;
    font-family: var(--font-mono);
    color: var(--color-subtle);
}

/* Image embeds */
.embed-images {
    display: grid;
    gap: 4px;
    margin-top: 0.5rem;
    overflow: hidden;
}

.embed-images-1 {
    grid-template-columns: 1fr;
}

.embed-images-2 {
    grid-template-columns: 1fr 1fr;
}

.embed-images-3 {
    grid-template-columns: 1fr 1fr;
}

.embed-images-4 {
    grid-template-columns: 1fr 1fr;
}

.embed-image-link {
    display: block;
    line-height: 0;
}

.embed-image {
    width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: cover;
    object-position: center;
    margin: 0;
}

/* Quoted records */
.embed-quote {
    display: block;
    margin-top: 0.5rem;
    padding: 0.75rem;
    background: var(--color-overlay);
    border-left: 2px solid var(--color-tertiary);
}

@media (prefers-color-scheme: dark) {
    .embed-quote {
        border: 1px solid var(--color-border);
        border-left: 2px solid var(--color-tertiary);
    }
}

.embed-quote .embed-author {
    margin-bottom: 0.5rem;
}

.embed-quote .embed-avatar {
    width: 24px;
    height: 24px;
    min-width: 24px;
    min-height: 24px;
    max-width: 24px;
    max-height: 24px;
}

.embed-quote .embed-content {
    font-size: 0.95em;
    margin-bottom: 0;
}

/* Placeholder states */
.embed-video-placeholder,
.embed-not-found,
.embed-blocked,
.embed-detached,
.embed-unknown {
    display: block;
    padding: 1rem;
    background: var(--color-overlay);
    border-left: 2px solid var(--color-border);
    color: var(--color-muted);
    font-style: italic;
    margin-top: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.9em;
}

@media (prefers-color-scheme: dark) {
    .embed-video-placeholder,
    .embed-not-found,
    .embed-blocked,
    .embed-detached,
    .embed-unknown {
        border: 1px dashed var(--color-border);
    }
}

/* Record card embeds (feeds, lists, labelers, starter packs) */
.embed-record-card {
    display: block;
    margin-top: 0.5rem;
    padding: 0.75rem;
    background: var(--color-overlay);
    border-left: 2px solid var(--color-tertiary);
}

.embed-record-card > .embed-author-name {
    display: block;
    font-size: 1.1em;
}

.embed-subtitle {
    display: block;
    font-size: 0.85em;
    color: var(--color-muted);
    margin-bottom: 0.5rem;
}

.embed-record-card .embed-description {
    display: block;
    margin: 0.5rem 0;
}

.embed-record-card .embed-stats {
    display: block;
    margin-top: 0.25rem;
}

/* Generic record fields */
.embed-fields {
    display: block;
    margin-top: 0.5rem;
    font-family: var(--font-ui);
    font-size: 0.85rem;
    color: var(--color-muted);
}

.embed-field {
    display: block;
    margin-top: 0.25rem;
}

/* Nested fields get indentation */
.embed-fields .embed-fields {
    display: block;
    margin-top: 0.5rem;
    margin-left: 1rem;
    padding-left: 0.5rem;
    border-left: 1px solid var(--color-border);
}

/* Type label inside fields should be block with spacing */
.embed-fields > .embed-author-handle {
    display: block;
    margin-bottom: 0.25rem;
}

.embed-field-name {
    color: var(--color-subtle);
}

.embed-field-number {
    color: var(--color-tertiary);
}

.embed-field-date {
    color: var(--color-muted);
}

.embed-field-count {
    color: var(--color-muted);
    font-style: italic;
}

.embed-field-bool-true {
    color: var(--color-success);
}

.embed-field-bool-false {
    color: var(--color-muted);
}

.embed-field-link,
.embed-field-aturi {
    color: var(--color-link);
    text-decoration: none;
}

.embed-field-link:hover,
.embed-field-aturi:hover {
    text-decoration: underline;
}

.embed-field-did {
    font-family: var(--font-mono);
    font-size: 0.9em;
}

.embed-field-did .did-scheme,
.embed-field-did .did-separator {
    color: var(--color-muted);
}

.embed-field-did .did-method {
    color: var(--color-tertiary);
}

.embed-field-did .did-identifier {
    color: var(--color-text);
}

.embed-field-nsid {
    color: var(--color-secondary);
}

.embed-field-handle {
    color: var(--color-link);
}

/* AT URI highlighting */
.aturi-scheme {
    color: var(--color-muted);
}

.aturi-slash {
    color: var(--color-muted);
}

.aturi-authority {
    color: var(--color-link);
}

.aturi-collection {
    color: var(--color-secondary);
}

.aturi-rkey {
    color: var(--color-tertiary);
}

/* Generic AT Protocol record embed */
.atproto-record > .embed-author-handle {
    display: block;
    margin-bottom: 0.25rem;
}

.atproto-record > .embed-author-name {
    display: block;
    margin-bottom: 0.5rem;
}

.atproto-record > .embed-content {
    margin-bottom: 0.5rem;
}

/* Notebook entry embed - full width, expandable */
.atproto-entry {
    max-width: none;
    width: 100%;
    margin: 1.5rem 0;
    padding: 0;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-left: 1px solid var(--color-border);
    box-shadow: none;
    overflow: hidden;
}

.atproto-entry:hover {
    border-left-color: var(--color-border);
}

@media (prefers-color-scheme: dark) {
    .atproto-entry {
        border: 1px solid var(--color-border);
        border-left: 1px solid var(--color-border);
    }
}

.embed-entry-header {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 0.5rem 1rem;
    padding: 0.75rem 1rem;
    background: var(--color-overlay);
    border-bottom: 1px solid var(--color-border);
}

.embed-entry-title {
    font-size: 1.1em;
    font-weight: 600;
    color: var(--color-text);
}

.embed-entry-author {
    font-size: 0.85em;
    color: var(--color-muted);
}

/* Hidden checkbox for expand/collapse */
.embed-entry-toggle {
    display: none;
}

/* Content wrapper - scrollable when collapsed */
.embed-entry-content {
    max-height: 30rem;
    overflow-y: auto;
    padding: 1rem;
    transition: max-height 0.3s ease;
}

/* When checkbox is checked, expand fully */
.embed-entry-toggle:checked ~ .embed-entry-content {
    max-height: none;
}

/* Expand/collapse button */
.embed-entry-expand {
    display: block;
    width: 100%;
    padding: 0.5rem;
    text-align: center;
    font-size: 0.85em;
    font-family: var(--font-ui);
    color: var(--color-muted);
    background: var(--color-overlay);
    border-top: 1px solid var(--color-border);
    cursor: pointer;
    user-select: none;
}

.embed-entry-expand:hover {
    color: var(--color-text);
    background: var(--color-surface);
}

/* Toggle button text */
.embed-entry-expand::before {
    content: "Expand ↓";
}

.embed-entry-toggle:checked ~ .embed-entry-expand::before {
    content: "Collapse ↑";
}

/* Hide expand button if content doesn't overflow (via JS class) */
.atproto-entry.no-overflow .embed-entry-expand {
    display: none;
}

/* Horizontal Rule */
hr {
    border: none;
    border-top: 2px solid var(--color-border);
    margin: 2rem 0;
}

/* Tablet and mobile responsiveness */
@media (max-width: 900px) {
    .notebook-content {
        padding: 1.5rem 1rem;
        max-width: 100%;
    }

    h1 { font-size: 1.85rem; }
    h2 { font-size: 1.4rem; }
    h3 { font-size: 1.2rem; }

    blockquote {
        margin-left: 0;
        margin-right: 0;
    }
}

/* Small mobile phones */
@media (max-width: 480px) {
    .notebook-content {
        padding: 1rem 0.75rem;
    }

    h1 { font-size: 1.65rem; }
    h2 { font-size: 1.3rem; }
    h3 { font-size: 1.1rem; }

    blockquote {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }
}
/* Syntax highlighting - Light Mode (default) */
/*
 * theme "Rosé Pine Dawn" generated by syntect
 */

.wvc-code {
 color: #575279;
 background-color: #faf4ed;
}

.wvc-comment {
 color: #797593;
font-style: italic;
}
.wvc-string, .wvc-punctuation.wvc-definition.wvc-string {
 color: #ea9d34;
}
.wvc-constant.wvc-numeric {
 color: #ea9d34;
}
.wvc-constant.wvc-language {
 color: #ea9d34;
font-weight: bold;
}
.wvc-constant.wvc-character, .wvc-constant.wvc-other {
 color: #ea9d34;
}
.wvc-variable {
 color: #575279;
font-style: italic;
}
.wvc-keyword {
 color: #286983;
}
.wvc-storage {
 color: #56949f;
}
.wvc-storage.wvc-type {
 color: #56949f;
}
.wvc-entity.wvc-name.wvc-class {
 color: #286983;
font-weight: bold;
}
.wvc-entity.wvc-other.wvc-inherited-class {
 color: #286983;
font-style: italic;
}
.wvc-entity.wvc-name.wvc-function {
 color: #d7827e;
font-style: italic;
}
.wvc-variable.wvc-parameter {
 color: #907aa9;
}
.wvc-entity.wvc-name.wvc-tag {
 color: #286983;
font-weight: bold;
}
.wvc-entity.wvc-other.wvc-attribute-name {
 color: #907aa9;
}
.wvc-support.wvc-function {
 color: #d7827e;
font-weight: bold;
}
.wvc-support.wvc-constant {
 color: #ea9d34;
font-weight: bold;
}
.wvc-support.wvc-type, .wvc-support.wvc-class {
 color: #56949f;
font-weight: bold;
}
.wvc-support.wvc-other.wvc-variable {
 color: #b4637a;
font-weight: bold;
}
.wvc-invalid {
 color: #575279;
 background-color: #b4637a;
}
.wvc-invalid.wvc-deprecated {
 color: #575279;
 background-color: #907aa9;
}
.wvc-punctuation, .wvc-keyword.wvc-operator {
 color: #797593;
}


/* Syntax highlighting - Dark Mode */
@media (prefers-color-scheme: dark) {
/*
 * theme "Rosé Pine" generated by syntect
 */

.wvc-code {
 color: #e0def4;
 background-color: #191724;
}

.wvc-comment {
 color: #908caa;
font-style: italic;
}
.wvc-string, .wvc-punctuation.wvc-definition.wvc-string {
 color: #f6c177;
}
.wvc-constant.wvc-numeric {
 color: #f6c177;
}
.wvc-constant.wvc-language {
 color: #f6c177;
font-weight: bold;
}
.wvc-constant.wvc-character, .wvc-constant.wvc-other {
 color: #f6c177;
}
.wvc-variable {
 color: #e0def4;
font-style: italic;
}
.wvc-keyword {
 color: #31748f;
}
.wvc-storage {
 color: #9ccfd8;
}
.wvc-storage.wvc-type {
 color: #9ccfd8;
}
.wvc-entity.wvc-name.wvc-class {
 color: #31748f;
font-weight: bold;
}
.wvc-entity.wvc-other.wvc-inherited-class {
 color: #31748f;
font-style: italic;
}
.wvc-entity.wvc-name.wvc-function {
 color: #ebbcba;
font-style: italic;
}
.wvc-variable.wvc-parameter {
 color: #c4a7e7;
}
.wvc-entity.wvc-name.wvc-tag {
 color: #31748f;
font-weight: bold;
}
.wvc-entity.wvc-other.wvc-attribute-name {
 color: #c4a7e7;
}
.wvc-support.wvc-function {
 color: #ebbcba;
font-weight: bold;
}
.wvc-support.wvc-constant {
 color: #f6c177;
font-weight: bold;
}
.wvc-support.wvc-type, .wvc-support.wvc-class {
 color: #9ccfd8;
font-weight: bold;
}
.wvc-support.wvc-other.wvc-variable {
 color: #eb6f92;
font-weight: bold;
}
.wvc-invalid {
 color: #e0def4;
 background-color: #eb6f92;
}
.wvc-invalid.wvc-deprecated {
 color: #e0def4;
 background-color: #c4a7e7;
}
.wvc-punctuation, .wvc-keyword.wvc-operator {
 color: #908caa;
}
}