/* =================================
    blog.css - blog.php, blog_post.php, blog_edit.php
    ================================= */

/* =================================
    CSS VARIABLES (Light & Dark Mode)
    ================================= */
:root {
    /* Light Mode */
    --blog-body-background: #f8f8f8;
    --blog-text-color: #555;
    --blog-heading-color: #2c3e50;
    --blog-muted-color: #6c757d;
    --blog-content-background: #fff;
    --blog-content-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    --blog-border-color: #e0e0e0;
    --blog-link-color: #0056b3;
    --blog-link-hover: #003d80;
    --blog-code-background: #f1f3f5;
    --blog-accent: #62707D;
    --blog-accent-text: #fff;
    --blog-draft-background: #fff3cd;
    --blog-draft-text: #664d03;
}

/* Dark Mode - Activated by System Preference or Manual Toggle */
@media (prefers-color-scheme: dark) {
    :root {
        --blog-body-background: #1a1a1a;
        --blog-text-color: #ccc;
        --blog-heading-color: #e0e0e0;
        --blog-muted-color: #a0a0a0;
        --blog-content-background: #2a2a2a;
        --blog-content-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
        --blog-border-color: #444;
        --blog-link-color: #6a9ce0;
        --blog-link-hover: #8fb5ea;
        --blog-code-background: #1f1f1f;
        --blog-accent: #62707d;
        --blog-accent-text: #e0e0e0;
        --blog-draft-background: #4d3d1a;
        --blog-draft-text: #f5e3b3;
    }
}

body[data-theme='dark'] {
    /* Manual Dark Mode Override */
    --blog-body-background: #1a1a1a;
    --blog-text-color: #ccc;
    --blog-heading-color: #e0e0e0;
    --blog-muted-color: #a0a0a0;
    --blog-content-background: #2a2a2a;
    --blog-content-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    --blog-border-color: #444;
    --blog-link-color: #6a9ce0;
    --blog-link-hover: #8fb5ea;
    --blog-code-background: #1f1f1f;
    --blog-accent: #62707d;
    --blog-accent-text: #e0e0e0;
    --blog-draft-background: #4d3d1a;
    --blog-draft-text: #f5e3b3;
}

/* =================================
    General
    ================================= */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--blog-body-background);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.blog-wrapper {
    min-height: calc(100vh - 120px);
    padding: 20px;
    box-sizing: border-box;
    display: flex;
    justify-content: center;
}

.blog-content {
    width: 100%;
    max-width: 900px;
    background-color: var(--blog-content-background);
    color: var(--blog-text-color);
    margin: 80px auto 0 auto;
    padding: 40px;
    border-radius: 8px;
    box-shadow: var(--blog-content-shadow);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}

.blog-content h1 {
    color: var(--blog-heading-color);
    font-size: 2em;
    line-height: 1.25;
    margin: 0 0 10px 0;
}

.blog-content a {
    color: var(--blog-link-color);
}

/* =================================
    Two-column layout (content + sidebar)
    ================================= */
.blog-layout {
    width: 100%;
    max-width: 1220px;
    margin: 80px auto 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 290px;
    gap: 24px;
    align-items: start;
}

.blog-layout .blog-content {
    max-width: none;
    margin: 0;
}

.blog-content a:hover {
    color: var(--blog-link-hover);
}

/* =================================
    List page (blog.php)
    ================================= */
.blog-intro {
    margin: 0 0 16px 0;
}

.blog-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 8px 24px;
    padding: 10px 0;
    border-top: 1px solid var(--blog-border-color);
    border-bottom: 1px solid var(--blog-border-color);
    font-size: 0.95rem;
    color: var(--blog-muted-color);
}

.blog-stats strong {
    color: var(--blog-heading-color);
}

.blog-filter-bar {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 8px 16px;
    margin: 20px 0 0 0;
    padding: 10px 14px;
    border-radius: 6px;
    background-color: var(--blog-code-background);
    font-size: 0.9rem;
}

.blog-filter-bar strong {
    color: var(--blog-heading-color);
}

.blog-empty {
    margin-top: 20px;
}

.blog-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.blog-item {
    padding: 22px 0;
    border-bottom: 1px solid var(--blog-border-color);
}

.blog-item:last-child {
    border-bottom: none;
}

.blog-item-meta {
    font-size: 0.85rem;
    color: var(--blog-muted-color);
}

.blog-item-meta a {
    color: var(--blog-muted-color);
}

.blog-item h2 {
    font-size: 1.35em;
    line-height: 1.3;
    margin: 4px 0 6px 0;
}

.blog-item h2 a {
    color: var(--blog-heading-color);
    text-decoration: none;
}

.blog-item h2 a:hover {
    color: var(--blog-link-color);
    text-decoration: underline;
}

.blog-excerpt {
    margin: 0;
}

/* =================================
    Tags (list, post and sidebar)
    ================================= */
.blog-tag-list {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin-top: 10px;
}

.blog-content a.blog-tag,
.blog-sidebar a.blog-tag {
    display: inline-block;
    padding: 2px 10px;
    border: 1px solid var(--blog-border-color);
    border-radius: 12px;
    font-size: 0.8rem;
    text-decoration: none;
    color: var(--blog-text-color);
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.blog-tag span {
    opacity: 0.7;
}

.blog-content a.blog-tag:hover,
.blog-sidebar a.blog-tag:hover,
.blog-sidebar a.blog-tag.active {
    background-color: var(--blog-accent);
    border-color: var(--blog-accent);
    color: var(--blog-accent-text);
}

.blog-post-tags {
    margin-top: 28px;
}

.blog-tags-label,
.blog-share-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--blog-muted-color);
    margin-right: 2px;
}

.blog-pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-top: 20px;
    padding-top: 16px;
    border-top: 1px solid var(--blog-border-color);
    font-size: 0.9rem;
    color: var(--blog-muted-color);
}

.blog-edit-link {
    margin: 24px 0 0 0;
    font-size: 0.85rem;
}

/* =================================
    Single post (blog_post.php)
    ================================= */
.blog-draft-banner {
    background-color: var(--blog-draft-background);
    color: var(--blog-draft-text);
    padding: 10px 14px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.blog-post-meta {
    font-size: 0.9rem;
    color: var(--blog-muted-color);
    margin-bottom: 8px;
}

.blog-post-meta a {
    color: var(--blog-muted-color);
}

.blog-subject {
    margin: 0 0 8px 0;
    font-weight: 600;
    color: var(--blog-heading-color);
}

.blog-body {
    margin-top: 24px;
    padding-top: 8px;
    border-top: 1px solid var(--blog-border-color);
    overflow-wrap: break-word;
}

.blog-body h2,
.blog-body h3,
.blog-body h4,
.blog-body h5,
.blog-body h6 {
    color: var(--blog-heading-color);
    line-height: 1.3;
    margin: 1.6em 0 0.5em 0;
}

.blog-body h2 { font-size: 1.45em; }
.blog-body h3 { font-size: 1.2em; }
.blog-body h4,
.blog-body h5,
.blog-body h6 { font-size: 1.05em; }

.blog-body p {
    margin: 0 0 1em 0;
}

.blog-body ul,
.blog-body ol {
    margin: 0 0 1em 0;
    padding-left: 1.6em;
}

.blog-body li {
    margin-bottom: 0.3em;
}

.blog-body code {
    font-family: Consolas, 'Courier New', monospace;
    font-size: 0.9em;
    background-color: var(--blog-code-background);
    padding: 2px 5px;
    border-radius: 3px;
}

.blog-body pre {
    background-color: var(--blog-code-background);
    border: 1px solid var(--blog-border-color);
    border-radius: 6px;
    padding: 14px 16px;
    overflow-x: auto;
    margin: 0 0 1em 0;
    line-height: 1.45;
}

.blog-body pre code {
    background: none;
    padding: 0;
    font-size: 0.88em;
}

.blog-body blockquote {
    margin: 0 0 1em 0;
    padding: 4px 0 4px 16px;
    border-left: 4px solid var(--blog-accent);
    color: var(--blog-muted-color);
}

.blog-body blockquote p {
    margin: 0;
}

.blog-table-wrap {
    overflow-x: auto;
    margin: 0 0 1em 0;
}

.blog-body table {
    border-collapse: collapse;
    min-width: 50%;
    font-size: 0.92rem;
}

.blog-body th,
.blog-body td {
    padding: 7px 12px;
    border: 1px solid var(--blog-border-color);
    text-align: left;
    vertical-align: top;
}

.blog-body th {
    background-color: var(--blog-code-background);
    color: var(--blog-heading-color);
    font-weight: 600;
}

.blog-body hr {
    border: 0;
    border-top: 1px solid var(--blog-border-color);
    margin: 1.6em 0;
}

.blog-share {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    margin-top: 16px;
}

.blog-share a,
.blog-share button {
    padding: 5px 12px;
    border: 1px solid var(--blog-border-color);
    border-radius: 4px;
    background: transparent;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    line-height: 1.4;
    text-decoration: none;
    color: var(--blog-text-color);
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.blog-content .blog-share a {
    color: var(--blog-text-color);
}

.blog-content .blog-share a:hover,
.blog-share button:hover {
    background-color: var(--blog-accent);
    border-color: var(--blog-accent);
    color: var(--blog-accent-text);
}

.blog-discuss {
    margin: 28px 0 0 0;
    padding: 12px 16px;
    border: 1px solid var(--blog-border-color);
    border-radius: 6px;
    font-weight: 600;
}

.blog-postnav {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 28px;
    padding-top: 16px;
    border-top: 1px solid var(--blog-border-color);
}

.blog-postnav a {
    display: flex;
    flex-direction: column;
    max-width: 48%;
    text-decoration: none;
    font-weight: 600;
}

.blog-postnav a span {
    font-size: 0.8rem;
    font-weight: normal;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--blog-muted-color);
}

.blog-postnav-older {
    margin-left: auto;
    text-align: right;
}

.blog-back {
    margin: 24px 0 0 0;
    font-size: 0.9rem;
}

/* =================================
    Sidebar (blog_sidebar.php)
    ================================= */
.blog-sidebar {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.blog-side-box {
    background-color: var(--blog-content-background);
    color: var(--blog-text-color);
    padding: 18px 20px;
    border-radius: 8px;
    box-shadow: var(--blog-content-shadow);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.blog-side-title {
    margin: 0 0 12px 0;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--blog-border-color);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--blog-heading-color);
}

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

.blog-sidebar a:hover {
    color: var(--blog-link-hover);
    text-decoration: underline;
}

.blog-search {
    display: flex;
    gap: 6px;
}

.blog-search input {
    flex: 1;
    min-width: 0;
    padding: 8px 10px;
    border: 1px solid var(--blog-border-color);
    border-radius: 4px;
    background-color: var(--blog-body-background);
    color: var(--blog-text-color);
    font-family: inherit;
    font-size: 0.9rem;
}

.blog-search button {
    padding: 8px 12px;
    border: 1px solid var(--blog-accent);
    border-radius: 4px;
    background-color: var(--blog-accent);
    color: var(--blog-accent-text);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
}

.blog-search button:hover {
    opacity: 0.9;
}

.blog-side-list {
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: 0.92rem;
}

.blog-side-list li {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    padding: 5px 0;
}

.blog-side-list li span {
    color: var(--blog-muted-color);
    font-size: 0.85rem;
}

.blog-side-list li.active a {
    font-weight: 700;
    color: var(--blog-heading-color);
}

.blog-side-recent {
    list-style: none;
    margin: 0;
    padding: 0;
    font-size: 0.92rem;
}

.blog-side-recent li {
    padding: 6px 0;
    border-bottom: 1px solid var(--blog-border-color);
}

.blog-side-recent li:last-child {
    border-bottom: none;
}

.blog-side-recent a {
    display: block;
    line-height: 1.35;
}

.blog-side-recent time {
    font-size: 0.8rem;
    color: var(--blog-muted-color);
}

/* Calendar */
.blog-cal-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.blog-cal-head a,
.blog-cal-nav-off {
    font-size: 1.2rem;
    line-height: 1;
    padding: 2px 8px;
}

.blog-sidebar .blog-cal-head .blog-cal-month {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--blog-heading-color);
}

.blog-cal-nav-off {
    opacity: 0.3;
}

.blog-cal table {
    width: 100%;
    border-collapse: collapse;
    table-layout: fixed;
    font-size: 0.85rem;
    text-align: center;
}

.blog-cal th {
    padding: 4px 0;
    font-weight: 600;
    color: var(--blog-muted-color);
    font-size: 0.75rem;
}

.blog-cal td {
    padding: 2px;
    color: var(--blog-muted-color);
    opacity: 0.6;
}

.blog-cal td a {
    display: block;
    padding: 4px 0;
    border-radius: 4px;
    font-weight: 700;
    background-color: var(--blog-code-background);
}

.blog-cal td:has(a) {
    opacity: 1;
}

.blog-sidebar .blog-cal td a:hover,
.blog-sidebar .blog-cal td.active a {
    background-color: var(--blog-accent);
    color: var(--blog-accent-text);
    text-decoration: none;
}

/* =================================
    Editor (blog_edit.php, on top of title_source.css)
    ================================= */
.blog-editor .edit-section {
    max-width: 900px;
}

.blog-editor textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--input-border);
    border-radius: 6px;
    background: var(--body-background);
    color: var(--body-text-color);
    font-family: inherit;
    font-size: 1rem;
    line-height: 1.5;
    box-sizing: border-box;
    resize: vertical;
}

.blog-editor textarea.blog-body-input {
    font-family: Consolas, 'Courier New', monospace;
    font-size: 0.95rem;
}

.blog-editor .form-group input[readonly] {
    opacity: 0.7;
    cursor: not-allowed;
}

.blog-editor .form-hint {
    display: block;
    margin-top: 6px;
    font-size: 0.85rem;
    color: var(--edit-section-h3-color);
}

.blog-editor .form-hint code {
    font-size: 0.85em;
}

.blog-form-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.blog-btn-link {
    display: inline-block;
    text-decoration: none;
}

.blog-btn-secondary {
    background-color: var(--reset-btn-background);
}

.blog-btn-secondary:hover {
    background-color: var(--reset-btn-hover);
}

.blog-editor-list {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

.blog-editor-list th,
.blog-editor-list td {
    text-align: left;
    padding: 10px 8px;
    border-bottom: 1px solid var(--edit-section-border);
}

.blog-editor-list th {
    color: var(--form-label-color);
    font-weight: 600;
}

.blog-editor-list a {
    color: var(--sidebar-link-color);
}

.blog-editor-list th.num,
.blog-editor-list td.num {
    text-align: right;
    white-space: nowrap;
}

.blog-editor-sort {
    display: flex;
    flex-wrap: wrap;
    gap: 6px 14px;
    font-size: 0.9rem;
    color: var(--edit-section-h3-color);
}

.blog-editor-sort a {
    color: var(--sidebar-link-color);
}

.blog-view-stats {
    margin: 24px 0 0 0;
    padding: 8px 12px;
    border-radius: 6px;
    background-color: var(--blog-code-background);
    font-size: 0.85rem;
    color: var(--blog-muted-color);
}

.blog-view-stats strong {
    color: var(--blog-heading-color);
}

.blog-status {
    font-size: 0.8rem;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 10px;
}

.blog-status-published {
    background-color: var(--message-success-bg);
    color: var(--message-success-text);
}

.blog-status-draft {
    background-color: var(--blog-draft-background);
    color: var(--blog-draft-text);
}

.blog-preview {
    margin-top: 30px;
    padding: 24px;
    border: 2px dashed var(--edit-section-border);
    border-radius: 8px;
    color: var(--body-text-color);
}

.blog-preview-label {
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--edit-section-h3-color);
}

.blog-preview .blog-body {
    margin-top: 12px;
}

.blog-preview .blog-body a {
    color: var(--sidebar-link-color);
}

/* =================================
    MOBILE RESPONSIVE
    ================================= */
@media (max-width: 960px) {
    .blog-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .blog-content {
        padding: 24px 18px;
    }

    .blog-content h1 {
        font-size: 1.6em;
    }

    .blog-form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .blog-postnav {
        flex-direction: column;
    }

    .blog-postnav a {
        max-width: 100%;
    }

    .blog-postnav-older {
        margin-left: 0;
        text-align: left;
    }
}

@media (max-width: 480px) {
    .blog-wrapper {
        padding: 10px;
    }

    .blog-content {
        padding: 20px 14px;
    }
}