/* ============================================
   ARTICLE CSS — The Decipherist
   Shared styles for all generated article pages
   ============================================ */

/* Article pages use slightly larger body text */
body {
    font-size: 20px;
}

/* Article header uses smaller logo */
.logo {
    font-size: clamp(1.5rem, 4vw, 2rem);
    letter-spacing: 0.1em;
}

/* Article footer uses dimmer signature */
.footer-signature {
    font-size: 14px;
    color: var(--accent-dim);
    margin-top: 10px;
}

footer {
    padding: 40px 20px;
}

/* ---- Hero Banner ---- */
.hero-banner {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    height: 360px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    border-bottom: 1px solid var(--border);
}

@media (max-width: 768px) { .hero-banner { height: 240px; } }
@media (max-width: 480px) { .hero-banner { height: 180px; } }

/* ---- Main Content (non-sidebar) ---- */
main {
    max-width: 900px;
    margin: 0 auto;
    padding: 60px 24px 80px;
}

/* ---- Back Link ---- */
.back-link {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 40px;
    transition: color 0.3s ease;
}

.back-link:hover { color: var(--accent); }
.back-link::before { content: '\2190 '; }

/* ---- Article Content Typography ---- */
.article-content h1 {
    font-family: var(--font-mono);
    font-size: 24px;
    font-weight: 600;
    letter-spacing: 0.05em;
    color: var(--accent);
    margin: 50px 0 24px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.article-content h2 {
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    margin: 45px 0 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.article-content h3 {
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 500;
    color: var(--text-primary);
    margin: 35px 0 16px;
}

.article-content h4 {
    font-family: var(--font-mono);
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin: 25px 0 12px;
}

.article-content p {
    margin-bottom: 18px;
    color: var(--text-primary);
}

.article-content strong {
    color: var(--accent);
    font-weight: 500;
}

.article-content em {
    font-style: italic;
}

.article-content a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid var(--accent-dim);
    transition: border-color 0.3s ease;
}

.article-content a:hover {
    border-color: var(--accent);
}

.article-content ul, .article-content ol {
    margin: 16px 0 16px 24px;
    color: var(--text-secondary);
}

.article-content li {
    margin-bottom: 8px;
}

.article-content blockquote {
    margin: 25px 0;
    padding: 20px 24px;
    background: var(--bg-secondary);
    border-left: 3px solid var(--accent);
    font-style: italic;
}

.article-content blockquote p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

.article-content code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 3px;
    color: var(--accent);
}

.article-content pre {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 20px;
    overflow-x: auto;
    margin: 20px 0;
}

.article-content pre code {
    background: none;
    padding: 0;
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-primary);
}

/* Tables */
.article-content .table-wrapper { overflow-x: auto; margin: 20px 0; }
.article-content table { width: 100%; border-collapse: collapse; font-size: 14px; }
.article-content th, .article-content td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--border); }
.article-content th {
    font-family: var(--font-mono);
    font-size: 14px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--accent);
    background: var(--bg-secondary);
}
.article-content td { color: var(--text-secondary); }
.article-content tr:hover td { background: var(--bg-tertiary); }

/* Zebra striping - alternating rows */
.article-content tr:nth-child(odd) td { background: rgba(255, 255, 255, 0.02); }
.article-content tr:nth-child(odd):hover td { background: var(--bg-tertiary); }

/* Zebra striping - alternating columns */
.article-content th:nth-child(even) { background: rgba(201, 162, 39, 0.08); }
.article-content td:nth-child(even) { background: rgba(255, 255, 255, 0.025); }
.article-content tr:nth-child(odd) td:nth-child(even) { background: rgba(255, 255, 255, 0.045); }

.article-content hr { border: none; border-top: 1px solid var(--border); margin: 40px 0; }
.article-content img { max-width: 100%; height: auto; border-radius: 6px; margin: 20px 0; }

/* ============================================
   Sidebar TOC
   ============================================ */
.article-layout {
    display: flex;
    max-width: 1200px;
    margin: 0 auto;
    gap: 0;
}

.article-sidebar {
    width: 260px;
    flex-shrink: 0;
    position: relative;
}

.sidebar-inner {
    position: sticky;
    top: 80px;
    max-height: calc(100vh - 100px);
    overflow-y: auto;
    padding: 20px 16px 20px 24px;
    border-right: 1px solid var(--border);
}

.sidebar-inner::-webkit-scrollbar { width: 4px; }
.sidebar-inner::-webkit-scrollbar-track { background: transparent; }
.sidebar-inner::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.sidebar-label {
    font-family: var(--font-mono);
    font-size: 13px;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    text-transform: uppercase;
    margin: 24px 0 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border);
}

.sidebar-label:first-child { margin-top: 0; }

.sidebar-toc, .sidebar-links { list-style: none; margin: 0; padding: 0; }

.sidebar-toc li a, .sidebar-links li a {
    display: block;
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
    padding: 8px 0 8px 14px;
    border-left: 2px solid transparent;
    transition: all 0.2s ease;
    line-height: 1.5;
}

.sidebar-toc li a:hover, .sidebar-links li a:hover { color: var(--accent); }

.sidebar-toc li a.active {
    color: var(--accent);
    border-left-color: var(--accent);
}

.toc-h1 { font-weight: 500; color: var(--text-primary) !important; }
.toc-h2 { padding-left: 26px !important; font-size: 13px !important; }

.sidebar-back {
    display: block;
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--text-muted);
    text-decoration: none;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 8px;
    transition: color 0.2s ease;
}

.sidebar-back:hover { color: var(--accent); }

.sidebar-links li a {
    font-size: 14px;
    padding: 7px 0 7px 14px;
    border-left: none;
}

.sidebar-links li a.sidebar-current {
    color: var(--accent);
    font-weight: 500;
    border-left: 2px solid var(--accent);
}

/* Sidebar toggle button (mobile/tablet) */
.sidebar-toggle {
    display: none;
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1500;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 10px 18px;
    color: var(--text-secondary);
    font-family: var(--font-mono);
    font-size: 12px;
    cursor: pointer;
    align-items: center;
    gap: 6px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.4);
    transition: all 0.2s ease;
}

.sidebar-toggle:hover { border-color: var(--accent); color: var(--accent); }
.sidebar-toggle svg { width: 16px; height: 16px; }

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1550;
}

.sidebar-overlay.open { display: block; }

/* Layout: sidebar enabled adjusts main */
.article-layout main {
    flex: 1;
    min-width: 0;
    max-width: 900px;
    padding: 60px 24px 80px;
}

@media (max-width: 1024px) {
    .article-layout { display: block; }
    .article-sidebar {
        position: fixed;
        top: 0; left: 0;
        width: 280px; height: 100vh;
        background: var(--bg-secondary);
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 1600;
    }
    .article-sidebar.open { transform: translateX(0); }
    .sidebar-inner {
        position: static;
        max-height: 100vh;
        padding: 24px;
        border-right: none;
    }
    .sidebar-toggle { display: flex; }
    .article-layout main { max-width: 900px; margin: 0 auto; }
}

@media (max-width: 600px) {
    .article-layout main { padding: 40px 16px 60px; }
}

/* ============================================
   Comments Section
   ============================================ */
.comments-section {
    margin-top: 60px;
    padding-top: 40px;
    border-top: 1px solid var(--border);
}

.comments-header {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 20px;
}

.comments-title {
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    margin: 0;
}

.comments-count {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-muted);
}

.comments-notice {
    padding: 10px 16px;
    margin-bottom: 16px;
    background: rgba(201, 162, 39, 0.1);
    border: 1px solid var(--accent-dim);
    border-radius: 6px;
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--accent);
}

.comments-notice-error {
    background: rgba(239, 68, 68, 0.1);
    border-color: #ef4444;
    color: #ef4444;
}

/* Auth bar */
.comments-auth-bar {
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.comments-user-info {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-secondary);
}

.comments-user-info strong { color: var(--accent); }

/* Buttons */
.comments-btn {
    font-family: var(--font-mono);
    font-size: 13px;
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s;
}

.comments-btn:hover { border-color: var(--accent); color: var(--accent); }

.comments-btn-accent {
    background: var(--accent);
    color: var(--bg-primary);
    border-color: var(--accent);
    font-weight: 500;
}

.comments-btn-accent:hover { background: var(--accent-dim); color: var(--bg-primary); }
.comments-btn-small { padding: 4px 10px; font-size: 12px; }
.comments-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.comments-logout-btn { background: transparent; }

/* Composer */
.comments-composer, .comments-composer-inner {
    margin-bottom: 20px;
}

.comments-toolbar {
    display: flex;
    gap: 2px;
    padding: 6px 8px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-bottom: none;
    border-radius: 6px 6px 0 0;
    flex-wrap: wrap;
}

.comments-toolbar-btn {
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 4px 8px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 3px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
}

.comments-toolbar-btn:hover {
    color: var(--accent);
    background: rgba(201, 162, 39, 0.1);
    border-color: var(--border);
}

.comments-preview-btn { margin-left: auto; }

.comments-textarea {
    width: 100%;
    min-height: 300px;
    padding: 12px 14px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-top: none;
    border-radius: 0 0 6px 6px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 14px;
    line-height: 1.6;
    resize: vertical;
    outline: none;
    transition: border-color 0.2s;
}

.comments-textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.1);
}

.comments-preview-pane {
    padding: 12px 14px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-top: none;
    border-radius: 0 0 6px 6px;
    font-family: var(--font-serif);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
    min-height: 80px;
}

.comments-preview-pane p { margin-bottom: 10px; }
.comments-preview-pane code { font-family: var(--font-mono); font-size: 0.85em; background: var(--bg-tertiary); padding: 2px 6px; border-radius: 3px; }
.comments-preview-pane pre { background: var(--bg-tertiary); padding: 12px; border-radius: 4px; overflow-x: auto; margin: 10px 0; }
.comments-preview-pane pre code { background: none; padding: 0; }
.comments-preview-pane a { color: var(--accent); }
.comments-preview-empty { color: var(--text-muted); font-style: italic; }

.comments-composer-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
}

.comments-char-count {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
}

/* Sort bar */
.comments-sort-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
}

.comments-sort-label {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.comments-sort-btn {
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 4px 10px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.15s;
}

.comments-sort-btn:hover { border-color: var(--accent); color: var(--accent); }

.comments-sort-btn.active {
    background: var(--accent);
    color: var(--bg-primary);
    border-color: var(--accent);
}

/* Thread / Comment */
.comments-empty {
    font-family: var(--font-mono);
    font-size: 14px;
    color: var(--text-muted);
    text-align: center;
    padding: 40px 0;
}

.comment-thread {
    position: relative;
    padding-left: 0;
    margin-bottom: 4px;
}

.comment-thread[data-depth="1"] { padding-left: 24px; }
.comment-thread[data-depth="2"] { padding-left: 24px; }
.comment-thread[data-depth="3"] { padding-left: 24px; }
.comment-thread[data-depth="4"] { padding-left: 24px; }
.comment-thread[data-depth="5"] { padding-left: 24px; }
.comment-thread[data-depth="6"] { padding-left: 24px; }

.comment-body {
    background: var(--bg-secondary);
    border-radius: 6px;
    padding: 14px 16px 10px;
    margin-bottom: 4px;
}

.comment-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.comment-author {
    font-family: var(--font-mono);
    font-size: 13px;
    font-weight: 500;
    color: var(--accent);
}

.comment-time, .comment-edited {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
}

.comment-content {
    font-family: var(--font-serif);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-primary);
}

.comment-content p { margin-bottom: 8px; }
.comment-content p:last-child { margin-bottom: 0; }
.comment-content code { font-family: var(--font-mono); font-size: 0.85em; background: var(--bg-tertiary); padding: 2px 6px; border-radius: 3px; color: var(--accent); }
.comment-content pre { background: var(--bg-tertiary); padding: 12px; border-radius: 4px; overflow-x: auto; margin: 8px 0; }
.comment-content pre code { background: none; padding: 0; color: var(--text-primary); }
.comment-content a { color: var(--accent); text-decoration: none; border-bottom: 1px solid var(--accent-dim); }
.comment-content a:hover { border-color: var(--accent); }
.comment-content blockquote { border-left: 3px solid var(--accent-dim); padding: 8px 12px; margin: 8px 0; background: rgba(201, 162, 39, 0.05); }
.comment-content blockquote p { color: var(--text-secondary); margin-bottom: 0; }
.comment-content ul, .comment-content ol { margin: 8px 0 8px 20px; }
.comment-content li { margin-bottom: 4px; }

/* Actions bar */
.comment-actions {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-top: 8px;
}

.comment-vote-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    border-radius: 3px;
    display: flex;
    align-items: center;
    transition: all 0.15s;
}

.comment-vote-btn:hover { color: var(--text-primary); background: var(--bg-tertiary); }
.comment-upvote.active { color: var(--accent); }
.comment-downvote.active { color: #ef4444; }

.comment-score {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-secondary);
    min-width: 24px;
    text-align: center;
}

.comment-reply-btn {
    font-family: var(--font-mono);
    font-size: 12px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px 8px;
    margin-left: 8px;
    border-radius: 3px;
    transition: all 0.15s;
}

.comment-reply-btn:hover { color: var(--accent); background: var(--bg-tertiary); }

.comment-edit-btn {
    font-family: var(--font-mono);
    font-size: 12px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px 8px;
    margin-left: 8px;
    border-radius: 3px;
    transition: all 0.15s;
}

.comment-edit-btn:hover { color: var(--accent); background: var(--bg-tertiary); }

/* Edit composer */
.comment-edit-composer .comments-textarea { min-height: 200px; }

.comment-edit-composer .comments-composer-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
}

/* Collapse bar */
.comment-collapse-bar {
    position: absolute;
    left: 10px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
    cursor: pointer;
    transition: background 0.15s;
    z-index: 1;
}

.comment-collapse-bar:hover { background: var(--accent); }

.comment-collapsed-info {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    cursor: pointer;
}

.comment-collapsed-label {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
}

.comment-thread.collapsed > .comment-collapse-bar { background: var(--accent); }

/* Reply composer */
.comment-reply-composer { margin-top: 8px; }
.comment-reply-composer .comments-textarea { min-height: 80px; }

/* ---- Auth Modal ---- */
.auth-modal {
    display: none;
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: 10000;
}

.auth-modal.open { display: flex; align-items: center; justify-content: center; }

.auth-modal-overlay {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.7);
}

.auth-modal-content {
    position: relative;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 32px;
    width: 100%;
    max-width: 400px;
    z-index: 1;
}

.auth-modal-close {
    position: absolute;
    top: 12px; right: 16px;
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    padding: 4px;
}

.auth-modal-close:hover { color: var(--text-primary); }

.auth-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border);
}

.auth-tab {
    font-family: var(--font-mono);
    font-size: 14px;
    padding: 10px 20px;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: all 0.2s;
}

.auth-tab:hover { color: var(--text-primary); }

.auth-tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.auth-error {
    font-family: var(--font-mono);
    font-size: 13px;
    color: #ef4444;
    margin-bottom: 12px;
    min-height: 18px;
}

.auth-modal-content label {
    display: block;
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 6px;
}

.auth-modal-content input {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 14px;
    margin-bottom: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.auth-modal-content input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(201, 162, 39, 0.1);
}

.auth-modal-content .comments-btn {
    width: 100%;
    padding: 12px;
    font-size: 14px;
    margin-top: 4px;
}

/* Auth captcha */
.auth-captcha {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 20px;
    margin-bottom: 14px;
}

.auth-captcha .captcha-header {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.auth-captcha .captcha-header::before {
    content: '';
    display: inline-block;
    width: 6px;
    height: 6px;
    background: var(--accent);
}

.auth-captcha .captcha-instruction {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.auth-captcha .cipher-display {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2px;
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.auth-captcha .cipher-char { display: inline-block; }

.auth-captcha .cipher-slot {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 36px;
    background: var(--bg-primary);
    border: 2px dashed var(--border);
    border-radius: 3px;
    margin: 0 1px;
    transition: all 0.3s ease;
}

.auth-captcha .cipher-slot.highlight {
    border-color: var(--accent);
    background: rgba(201, 162, 39, 0.1);
}

.auth-captcha .cipher-slot.correct {
    border-style: solid;
    border-color: var(--accent);
    background: rgba(201, 162, 39, 0.2);
}

.auth-captcha .cipher-slot.shake {
    animation: captchaShake 0.4s ease-in-out;
}

@keyframes captchaShake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-5px); }
    40% { transform: translateX(5px); }
    60% { transform: translateX(-3px); }
    80% { transform: translateX(3px); }
}

.auth-captcha .cipher-slot .letter {
    font-family: var(--font-mono);
    font-size: 18px;
    font-weight: 600;
    color: var(--accent);
}

.auth-captcha .letter-pool {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.auth-captcha .pool-letter {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 16px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: grab;
    transition: all 0.2s ease;
    user-select: none;
}

.auth-captcha .pool-letter:hover {
    border-color: var(--accent);
    color: var(--text-primary);
    transform: translateY(-2px);
}

.auth-captcha .pool-letter.dragging { opacity: 0.5; transform: scale(0.95); }
.auth-captcha .pool-letter.used { opacity: 0.3; pointer-events: none; }

.auth-captcha .captcha-hint {
    text-align: center;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 12px;
    letter-spacing: 0.1em;
}

/* Verification code form */
.auth-verify-form {
    text-align: center;
}

.auth-verify-prompt {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.6;
}

.auth-verify-form input {
    margin-bottom: 16px;
}

.auth-verify-resend {
    font-family: var(--font-mono);
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 12px;
}

.auth-resend-btn {
    background: none;
    border: none;
    color: var(--accent);
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 12px;
    text-decoration: underline;
    padding: 0;
}

.auth-resend-btn:hover { color: var(--text-primary); }

/* ---- Article Responsive ---- */
@media (max-width: 600px) {
    header { padding: 50px 16px 30px; }
    main { padding: 40px 16px 60px; }
    .article-content pre { padding: 16px; }
    .article-content table { font-size: 12px; }
    .article-content th, .article-content td { padding: 8px 10px; }

    /* Comments responsive */
    .comments-sort-bar { flex-wrap: wrap; }
    .comment-thread[data-depth="1"],
    .comment-thread[data-depth="2"],
    .comment-thread[data-depth="3"],
    .comment-thread[data-depth="4"],
    .comment-thread[data-depth="5"],
    .comment-thread[data-depth="6"] {
        padding-left: 16px;
    }
    .auth-modal-content {
        margin: 16px;
        max-width: calc(100% - 32px);
        padding: 24px;
    }
    .comments-toolbar { gap: 1px; padding: 4px 6px; }
    .comments-toolbar-btn { padding: 3px 6px; font-size: 11px; }
}