html {
  font-size: 16px;
}

.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;
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
}

.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;
}

.blog-logo {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.blog-logo span {
    color: #6c757d;
    font-weight: 300;
}

.theme-toggle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: 1px solid var(--bs-border-color);
    background: transparent;
    color: var(--bs-body-color);
    transition: background 0.2s;
}

.theme-toggle:hover {
    background: var(--bs-secondary-bg);
}

.search-wrapper {
    max-width: 100%;
}

.post-card {
    /*border: 1px solid var(--bs-border-color);
    border-radius: 10px;
    padding: 1.5rem;*/
    transition: border-color 0.2s;
    background: var(--bs-body-bg);
}

.post-card:hover {
    border-color: var(--bs-secondary-color);
}

.post-meta {
    font-size: 0.78rem;
    color: var(--bs-secondary-color);
    gap: 1rem;
}

.post-meta svg {
    width: 13px;
    height: 13px;
    vertical-align: -1px;
}

.post-title {
    font-size: 1.15rem;
    font-weight: 600;
    line-height: 1.35;
    color: var(--bs-body-color);
    text-decoration: none;
}

.post-title:hover {
    color: var(--bs-secondary-color);
}

.post-excerpt {
    font-size: 0.9rem;
    color: var(--bs-secondary-color);
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    line-clamp: 3;
    overflow: hidden;
}

.divider {
    border-color: var(--bs-border-color);
    opacity: 1;
}

.blog-detail-title {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.3;
}

.blog-body {
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--bs-body-color);
}

.blog-body p {
    margin-bottom: 1.25rem;
}

.blog-body h2,
.blog-body h3 {
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.blog-body blockquote {
    border-left: 3px solid var(--bs-border-color);
    padding-left: 1rem;
    margin-left: 0;
    color: var(--bs-secondary-color);
    font-style: italic;
}

.blog-body code {
    background: var(--bs-secondary-bg);
    padding: 0.15em 0.4em;
    border-radius: 4px;
    font-size: 0.875em;
}

.blog-body pre {
    background: var(--bs-secondary-bg);
    padding: 1rem;
    border-radius: 8px;
    overflow-x: auto;
}

.blog-body pre code {
    background: none;
    padding: 0;
}

.vote-btn {
    background: transparent;
    border: 1px solid var(--bs-border-color);
    border-radius: 20px;
    padding: 0.4rem 1rem;
    color: var(--bs-body-color);
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    transition: background 0.2s, border-color 0.2s;
}

.vote-btn:hover {
    background: var(--bs-secondary-bg);
    border-color: var(--bs-secondary-color);
}

.comment-card {
    padding: 1rem;
    border: 1px solid var(--bs-border-color);
    border-radius: 8px;
    background: var(--bs-body-bg);
}

/* --- Feed (Medium/Blog clean) --- */

.feed-card {
    border: none;
    border-bottom: 1px solid var(--bs-border-color);
    border-radius: 0;
    padding: 2rem 0;
    background: transparent;
    transition: none;
}

.feed-card:first-child {
    padding-top: 0;
}

.feed-card:last-child {
    border-bottom: none;
}

.feed-card:hover {
    border-color: var(--bs-border-color);
    box-shadow: none;
}

.feed-card .post-title {
    font-size: 1.3rem;
    font-weight: 700;
    line-height: 1.4;
    letter-spacing: -0.01em;
    margin-bottom: 0.5rem;
}

.feed-card .post-excerpt {
    font-size: 0.95rem;
    color: var(--bs-secondary-color);
    line-height: 1.7;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    margin-bottom: 0;
}

.feed-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.feed-tag {
    font-size: 0.72rem;
    font-weight: 500;
    background: var(--bs-secondary-bg);
    color: var(--bs-secondary-color);
    padding: 0.2rem 0.6rem;
    border-radius: 99px;
    transition: background 0.15s;
}

.feed-tag:hover {
    background: var(--bs-tertiary-bg);
}

.feed-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 1rem;
}

.feed-stats {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.78rem;
    color: var(--bs-tertiary-color);
}

.feed-stats svg {
    width: 14px;
    height: 14px;
    vertical-align: -2px;
    margin-right: 0.2rem;
}

.feed-vote-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: transparent;
    border: none;
    border-radius: 99px;
    padding: 0.35rem 0.85rem;
    color: var(--bs-secondary-color);
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: 500;
    transition: background 0.15s, color 0.15s;
}

.feed-vote-btn:hover {
    background: var(--bs-secondary-bg);
    color: var(--bs-body-color);
}

.feed-vote-btn.voted {
    background: rgba(var(--bs-success-rgb), 0.1);
    color: var(--bs-success);
    pointer-events: none;
}

.feed-vote-btn svg {
    width: 16px;
    height: 16px;
}

.feed-comments {
    margin-top: 1rem;
    padding-left: 0;
}

.feed-comment {
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    margin-bottom: 0.75rem;
    font-size: 0.85rem;
    line-height: 1.5;
}

.feed-comment-avatar {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--bs-secondary-bg);
    color: var(--bs-secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    font-weight: 700;
    flex-shrink: 0;
    text-transform: uppercase;
}

.feed-comment-content {
    flex: 1;
    min-width: 0;
}

.feed-comment-author {
    font-weight: 600;
    color: var(--bs-body-color);
    white-space: nowrap;
    margin-right: 0.3rem;
}

.feed-comment-body {
    color: var(--bs-secondary-color);
    word-break: break-word;
}

.feed-comment-time {
    font-size: 0.7rem;
    color: var(--bs-tertiary-color);
    white-space: nowrap;
    margin-left: 0.4rem;
}

.feed-comment-votes {
    font-size: 0.7rem;
    color: var(--bs-tertiary-color);
    margin-left: 0.4rem;
}

.feed-comment-votes i {
    font-size: 0.6rem;
}

.feed-more-comments {
    display: inline-block;
    font-size: 0.8rem;
    color: var(--bs-secondary-color);
    text-decoration: none;
    padding: 0.25rem 0;
    font-weight: 500;
}

.feed-more-comments:hover {
    color: var(--bs-body-color);
}

.feed-loader {
    text-align: center;
    padding: 3rem 0;
    color: var(--bs-tertiary-color);
}

.feed-loader .spinner-border {
    width: 1.25rem;
    height: 1.25rem;
    border-width: 0.12rem;
}

.feed-end-msg {
    text-align: center;
    padding: 2rem 0;
    font-size: 0.82rem;
    color: var(--bs-tertiary-color);
}

/* --- Blog Comments (API-driven) --- */

.comment-sort-group {
    display: flex;
    gap: 0.25rem;
    background: var(--bs-secondary-bg);
    border-radius: 99px;
    padding: 0.2rem;
}

.comment-sort-btn {
    background: transparent;
    border: none;
    border-radius: 99px;
    padding: 0.3rem 0.85rem;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--bs-secondary-color);
    cursor: pointer;
    transition: background 0.15s, color 0.15s;
}

.comment-sort-btn.active {
    background: var(--bs-body-bg);
    color: var(--bs-body-color);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

.comment-sort-btn:hover:not(.active) {
    color: var(--bs-body-color);
}

.blog-comment {
    display: flex;
    gap: 0.75rem;
    padding: 1rem 0;
    border-bottom: 1px solid var(--bs-border-color);
}

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

.blog-comment-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bs-secondary-bg);
    color: var(--bs-secondary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 700;
    flex-shrink: 0;
    text-transform: uppercase;
}

.blog-comment-body {
    flex: 1;
    min-width: 0;
}

.blog-comment-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.3rem;
}

.blog-comment-author {
    font-weight: 600;
    font-size: 0.85rem;
    color: var(--bs-body-color);
}

.blog-comment-time {
    font-size: 0.72rem;
    color: var(--bs-tertiary-color);
}

.blog-comment-text {
    font-size: 0.88rem;
    line-height: 1.6;
    color: var(--bs-body-color);
    margin-bottom: 0.4rem;
    word-break: break-word;
}

.blog-comment-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.blog-comment-vote-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    background: transparent;
    border: none;
    border-radius: 99px;
    padding: 0.2rem 0.6rem;
    color: var(--bs-tertiary-color);
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 500;
    transition: background 0.15s, color 0.15s;
}

.blog-comment-vote-btn:hover {
    background: var(--bs-secondary-bg);
    color: var(--bs-body-color);
}

.blog-comment-vote-btn.voted {
    background: rgba(var(--bs-success-rgb), 0.1);
    color: var(--bs-success);
    pointer-events: none;
}

/* --- Sidebar --- */

.sidebar-sticky {
    position: sticky;
    top: 2rem;
}

.sidebar-section {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--bs-border-color);
}

.sidebar-section:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.sidebar-heading {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--bs-secondary-color);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.sidebar-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.sidebar-trending-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.55rem 0;
    text-decoration: none;
    color: var(--bs-body-color);
    transition: opacity 0.15s;
}

.sidebar-trending-item:hover {
    opacity: 0.7;
}

.sidebar-trending-rank {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--bs-tertiary-color);
    min-width: 1.2rem;
    line-height: 1.3;
}

.sidebar-trending-content {
    flex: 1;
    min-width: 0;
}

.sidebar-trending-title {
    display: block;
    font-size: 0.82rem;
    font-weight: 600;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    line-clamp: 2;
    overflow: hidden;
}

.sidebar-trending-stats {
    display: block;
    font-size: 0.7rem;
    color: var(--bs-tertiary-color);
    margin-top: 0.15rem;
}

.sidebar-trending-stats i {
    font-size: 0.6rem;
}

.sidebar-tag-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.sidebar-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.75rem;
    font-weight: 500;
    background: var(--bs-secondary-bg);
    color: var(--bs-secondary-color);
    padding: 0.3rem 0.7rem;
    border-radius: 99px;
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
}

.sidebar-tag:hover {
    background: var(--bs-tertiary-bg);
    color: var(--bs-body-color);
}

.sidebar-tag-count {
    font-size: 0.65rem;
    color: var(--bs-tertiary-color);
    font-weight: 400;
}

.sidebar-about-text {
    font-size: 0.82rem;
    color: var(--bs-secondary-color);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.sidebar-post-count {
    display: block;
    font-size: 0.72rem;
    color: var(--bs-tertiary-color);
    margin-bottom: 0.6rem;
}

.sidebar-link {
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--bs-body-color);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    transition: opacity 0.15s;
}

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

.sidebar-quick-links {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.sidebar-quick-links a {
    font-size: 0.8rem;
    color: var(--bs-secondary-color);
    text-decoration: none;
    transition: color 0.15s;
}

.sidebar-quick-links a:hover {
    color: var(--bs-body-color);
}