/* Post Page Styles */

.post-page {
    flex: 1;
    max-width: 850px;
    margin: 0 auto;
    padding: var(--spacing-3xl) var(--spacing-xl);
    width: 100%;
}

/* Sources / references footnote block */
.post-sources {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border);
}

.post-sources-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin: 0 0 var(--spacing-sm) 0;
}

.post-sources-list {
    margin: 0;
    padding-left: 1.25rem;
    font-size: 0.9375rem;
    line-height: 1.7;
    color: var(--text-secondary);
}

.post-sources-list li {
    margin-bottom: var(--spacing-xs);
}

.post-sources-list li::marker {
    color: var(--text-muted);
}

.post-sources-list a {
    color: var(--bitroot-primary-blue);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.15s ease;
    word-break: break-word;
}

.post-sources-list a:hover {
    border-bottom-color: var(--bitroot-primary-blue);
}

html[data-embed="1"] .post-sources {
    margin-top: var(--spacing-xl);
}

/* Embed / reader mode: strip site chrome for mobile app webview */
html[data-embed="1"] .header,
html[data-embed="1"] .footer,
html[data-embed="1"] .cloud-ticker,
html[data-embed="1"] .post-nav {
    display: none !important;
}

html[data-embed="1"] .post-page {
    padding: var(--spacing-lg) var(--spacing-md);
}

html[data-embed="1"] .post-article {
    border: none;
    background: transparent;
    padding: 0;
}

html[data-embed="1"] .post-article:not(:has(.post-hero-image))::before {
    display: none;
}

html[data-embed="1"] .post-hero-image,
html[data-embed="1"] .post-hero-video {
    margin: 0 0 var(--spacing-lg) 0;
    border-radius: var(--radius-md);
}

.post-article {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--spacing-2xl);
    position: relative;
}

/* Blue accent bar at top (only when no hero image) */
.post-article:not(:has(.post-hero-image))::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--bitroot-primary-blue), var(--bitroot-pink));
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* Hero Image */
.post-hero-image {
    margin: calc(-1 * var(--spacing-2xl));
    margin-bottom: var(--spacing-xl);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    overflow: hidden;
}

.post-hero-image img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    max-height: 500px;
}

/* Hero Video */
.post-hero-video {
    margin: calc(-1 * var(--spacing-2xl));
    margin-bottom: var(--spacing-xl);
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    overflow: hidden;
    background: #000;
    position: relative;
}

.post-hero-video video {
    width: 100%;
    max-height: 500px;
    display: block;
    object-fit: contain;
}

/* Video mute/unmute button */
.post-hero-video .video-mute-btn {
    position: absolute;
    bottom: var(--spacing-md);
    right: var(--spacing-md);
    width: 44px;
    height: 44px;
    background: rgba(0, 0, 0, 0.75);
    border: 2px solid rgba(255, 255, 255, 0.4);
    border-radius: 50%;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    z-index: 10;
    backdrop-filter: blur(4px);
}

.post-hero-video .video-mute-btn:hover {
    background: var(--bitroot-primary-blue);
    border-color: var(--bitroot-primary-blue);
    transform: scale(1.1);
}

.post-loading,
.post-error {
    text-align: center;
    padding: var(--spacing-3xl);
    color: var(--text-secondary);
}

.post-error h1 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.post-error a {
    color: var(--bitroot-primary-blue);
    text-decoration: underline;
}

/* Post Header */
.post-header {
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border);
}

.post-header .post-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.post-header .post-tag {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--tag-bg);
    color: var(--tag-text);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
}

.post-header .post-date,
.post-header .post-read-time {
    font-size: 0.9375rem;
    color: var(--text-muted);
}

.post-header .post-title {
    font-size: 2.25rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.post-header .post-excerpt {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Post Body - Markdown Content */
.post-body {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--text-primary);
}

.post-body h2 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.post-body h3 {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-sm);
}

.post-body h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.post-body h5, .post-body h6 {
    font-size: 1rem;
    font-weight: 600;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.post-body p {
    margin-bottom: var(--spacing-lg);
}

/* First paragraph emphasis */
.post-body > p:first-of-type {
    font-size: 1.125rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

.post-body a {
    color: var(--bitroot-primary-blue);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.post-body a:hover {
    opacity: 0.7;
}

.post-body strong {
    font-weight: 600;
}

.post-body ul,
.post-body ol {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-xl);
}

.post-body li {
    margin-bottom: var(--spacing-sm);
}

.post-body li::marker {
    color: var(--bitroot-primary-blue);
}

.post-body blockquote {
    border-left: 4px solid var(--bitroot-primary-blue);
    padding-left: var(--spacing-lg);
    margin: var(--spacing-xl) 0;
    color: var(--text-secondary);
    font-style: italic;
    background: var(--bitroot-light-blue);
    padding: var(--spacing-lg);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
}

.post-body code {
    font-family: 'IBM Plex Mono', monospace;
    font-size: 0.9em;
    background: var(--tag-bg);
    color: var(--bitroot-primary-blue);
    padding: 0.125em 0.4em;
    border-radius: var(--radius-sm);
}

.post-body pre {
    background: var(--bitroot-dark-blue);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    overflow-x: auto;
    margin-bottom: var(--spacing-lg);
}

.post-body pre code {
    background: none;
    color: #e5e5e5;
    padding: 0;
}

.post-body img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    margin: var(--spacing-lg) 0;
    border: 1px solid var(--border);
}

.post-body hr {
    border: none;
    border-top: 2px solid var(--bitroot-light-blue);
    margin: var(--spacing-2xl) 0;
}

/* Tables */
.post-body table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--spacing-lg) 0;
    font-size: 0.9375rem;
}

.post-body th,
.post-body td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.post-body th {
    font-weight: 600;
    background: var(--bitroot-light-blue);
    color: var(--bitroot-primary-blue);
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.post-body tr:hover {
    background: rgba(31, 118, 249, 0.03);
}

/* Emphasis styles */
.post-body em {
    font-style: italic;
}

.post-body mark {
    background: var(--bitroot-pink);
    padding: 0.1em 0.3em;
    border-radius: 2px;
}

/* Drop cap for first letter (optional nice touch) */
.post-body > p:first-of-type::first-letter {
    font-size: 3.5rem;
    font-weight: 700;
    float: left;
    line-height: 1;
    margin-right: var(--spacing-sm);
    margin-top: 0.1em;
    color: var(--bitroot-primary-blue);
}

/* Post Navigation */
.post-nav {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.back-link {
    font-size: 1rem;
    font-weight: 600;
    color: var(--bitroot-primary-blue);
    transition: opacity 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.back-link:hover {
    opacity: 0.7;
}

/* Post nav actions */
.post-nav-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Share button */
.share-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: var(--bitroot-light-blue);
    border: none;
    border-radius: 50%;
    color: var(--bitroot-primary-blue);
    cursor: pointer;
    transition: all 0.2s ease;
}

.share-btn:hover {
    background: var(--bitroot-primary-blue);
    color: white;
    transform: scale(1.1);
}

.share-btn.copied {
    background: #22c55e;
    color: white;
}

/* Responsive */
@media (max-width: 600px) {
    .post-page {
        padding: var(--spacing-xl) var(--spacing-md);
    }

    .post-article {
        padding: var(--spacing-lg);
    }

    .post-hero-image {
        margin: calc(-1 * var(--spacing-lg));
        margin-bottom: var(--spacing-lg);
    }

    .post-hero-image img {
        max-height: 300px;
    }

    .post-hero-video {
        margin: calc(-1 * var(--spacing-lg));
        margin-bottom: var(--spacing-lg);
    }

    .post-hero-video video {
        max-height: 300px;
    }

    .post-header .post-title {
        font-size: 1.75rem;
    }

    .post-body {
        font-size: 1rem;
    }

    .post-body > p:first-of-type::first-letter {
        font-size: 2.5rem;
    }

    .post-body table {
        font-size: 0.875rem;
    }

    .post-body th,
    .post-body td {
        padding: var(--spacing-xs) var(--spacing-sm);
    }

    .post-sources {
        margin-left: calc(-1 * var(--spacing-lg));
        margin-right: calc(-1 * var(--spacing-lg));
        margin-bottom: calc(-1 * var(--spacing-lg));
        padding: var(--spacing-lg);
    }
}