/* ═══════════════════════════════════════════════════════════════
   Article Stats, YouTube-Style Comments & Engagement UI
   TannIvan Theme / DSPSR iSolutions
   ═══════════════════════════════════════════════════════════════ */

/* ── Design tokens ─────────────────────────────────────────── */
:root {
    --as-bg:      #fff;
    --as-surface: #f9f9f9;
    --as-border:  #e5e5e5;
    --as-text:    #0f0f0f;
    --as-muted:   #606060;
    --as-blue:    #065fd4;
    --as-red:     #ff0000;
    --as-like:    #0f0f0f;
    --as-radius:  8px;
    --as-trans:   .18s ease;
}

/* ── Article Hero ──────────────────────────────────────────── */
.art-hero {
    position: relative;
    background: #0f0f0f;
    color: #fff;
    padding: 0;
    overflow: hidden;
}
.art-hero--has-img { min-height: 320px; display: flex; align-items: flex-end; }
.art-hero__img {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center;
}
.art-hero__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,.85) 0%, rgba(0,0,0,.3) 60%, rgba(0,0,0,.1) 100%);
}
.art-hero__content {
    position: relative;
    z-index: 1;
    padding: 40px 20px 32px;
    width: 100%;
}
.art-breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    font-size: .78rem;
    color: rgba(255,255,255,.7);
    margin-bottom: 14px;
}
.art-breadcrumb a { color: rgba(255,255,255,.8); text-decoration: none; }
.art-breadcrumb a:hover { color: #fff; }
.art-breadcrumb span { color: rgba(255,255,255,.5); }

.art-hero__tag {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin-bottom: 12px;
}
.art-tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: .72rem;
    font-weight: 600;
    text-decoration: none;
    letter-spacing: .02em;
}
.art-tag--code    { background: rgba(255,255,255,.15); color: #fff; border: 1px solid rgba(255,255,255,.25); }
.art-tag--subject { background: rgba(6,95,212,.25); color: #90b8ff; border: 1px solid rgba(6,95,212,.4); }
.art-tag--prog    { background: rgba(34,163,0,.2); color: #7ee87e; border: 1px solid rgba(34,163,0,.4); }

.art-hero__title {
    font-size: clamp(1.4rem, 3vw, 2.2rem);
    font-weight: 700;
    color: #fff;
    line-height: 1.25;
    margin: 0 0 14px;
}
.art-hero__meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: .82rem;
    color: rgba(255,255,255,.75);
}
.art-hero__avatar { border-radius: 50%; width: 28px; height: 28px; }
.art-hero__author { color: rgba(255,255,255,.85); text-decoration: none; font-weight: 500; }
.art-hero__author:hover { color: #fff; }
.art-hero__sep { color: rgba(255,255,255,.4); }

/* ── Stats Bar ─────────────────────────────────────────────── */
.art-stats-wrap {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,.96);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--as-border);
    box-shadow: 0 1px 4px rgba(0,0,0,.06);
}
.art-stats {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 10px 0;
    flex-wrap: wrap;
}
.art-stat {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 6px 10px;
    border-radius: 20px;
    font-size: .82rem;
    color: var(--as-muted);
    white-space: nowrap;
}
.art-stat__icon { width: 15px; height: 15px; opacity: .7; flex-shrink: 0; }
.art-stat__val  { font-weight: 600; color: var(--as-text); font-size: .88rem; }
.art-stat__lbl  { font-size: .75rem; color: var(--as-muted); }
.art-stat-sep {
    width: 1px;
    height: 20px;
    background: var(--as-border);
    flex-shrink: 0;
    margin: 0 4px;
}
.art-stat-sep--push { margin-left: auto; background: transparent; }

/* Like / Dislike pill (YouTube style) */
.art-reactions {
    display: flex;
    align-items: center;
    background: var(--as-surface);
    border: 1px solid var(--as-border);
    border-radius: 20px;
    overflow: hidden;
}
.art-react-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: .82rem;
    font-weight: 500;
    color: var(--as-text);
    transition: background var(--as-trans), color var(--as-trans);
    position: relative;
}
.art-react-btn:hover { background: rgba(0,0,0,.06); }
.art-react-btn.is-active { color: var(--as-blue); }
.art-react-btn.is-active svg { fill: var(--as-blue); stroke: var(--as-blue); }
.art-react-btn--dislike.is-active { color: var(--as-red); }
.art-react-btn--dislike.is-active svg { fill: var(--as-red); stroke: var(--as-red); }

/* Like animation */
@keyframes as-pop {
    0%   { transform: scale(1); }
    40%  { transform: scale(1.35); }
    70%  { transform: scale(.9); }
    100% { transform: scale(1); }
}
.art-react-btn.just-reacted svg { animation: as-pop .35s cubic-bezier(.4,0,.2,1); }

.art-react-divider {
    width: 1px;
    height: 20px;
    background: var(--as-border);
    flex-shrink: 0;
}

/* Share */
.art-share-wrap { position: relative; }
.art-share-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 16px;
    border-radius: 20px;
    border: 1px solid var(--as-border);
    background: var(--as-surface);
    font-size: .82rem;
    font-weight: 500;
    color: var(--as-text);
    cursor: pointer;
    transition: background var(--as-trans);
}
.art-share-btn:hover { background: #efefef; }

.art-share-panel {
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    background: #fff;
    border: 1px solid var(--as-border);
    border-radius: var(--as-radius);
    box-shadow: 0 8px 30px rgba(0,0,0,.14);
    min-width: 190px;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-6px) scale(.97);
    transition: opacity var(--as-trans), transform var(--as-trans);
    z-index: 200;
}
.art-share-panel.is-open {
    opacity: 1;
    pointer-events: all;
    transform: translateY(0) scale(1);
}
.art-share-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 16px;
    font-size: .83rem;
    color: var(--as-text);
    text-decoration: none;
    background: none;
    border: none;
    cursor: pointer;
    width: 100%;
    text-align: left;
    transition: background var(--as-trans);
    font-family: inherit;
}
.art-share-item:hover { background: var(--as-surface); }
.art-share-item--wa    { color: #25d366; }
.art-share-item--wa:hover { background: rgba(37,211,102,.08); }
.art-share-item--x:hover  { background: rgba(0,0,0,.05); }
.art-share-item--li    { color: #0077b5; }
.art-share-item--li:hover { background: rgba(0,119,181,.06); }
.art-share-item--copy  { color: var(--as-muted); }

/* ── Article Body Layout ───────────────────────────────────── */
.art-body-wrap { padding: 40px 0 60px; }
.art-body-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
    align-items: start;
}
.art-main { min-width: 0; }
.art-content {
    font-size: 1rem;
    line-height: 1.8;
    color: #1a1a1a;
}
.art-content h2 { font-size: 1.4rem; margin: 2em 0 .7em; }
.art-content h3 { font-size: 1.15rem; margin: 1.6em 0 .6em; }
.art-content p  { margin: 0 0 1.2em; }
.art-content pre {
    background: #1a1a2e;
    color: #e2e8f0;
    border-radius: var(--as-radius);
    padding: 16px 20px;
    overflow-x: auto;
    font-size: .88rem;
    line-height: 1.6;
    margin: 1.5em 0;
}
.art-content blockquote {
    border-left: 4px solid var(--as-blue);
    margin: 1.5em 0;
    padding: 12px 20px;
    background: rgba(6,95,212,.05);
    border-radius: 0 var(--as-radius) var(--as-radius) 0;
    color: var(--as-muted);
    font-style: italic;
}
.art-content table { width: 100%; border-collapse: collapse; margin: 1.5em 0; }
.art-content table th,
.art-content table td { border: 1px solid var(--as-border); padding: 8px 12px; text-align: left; font-size: .9rem; }
.art-content table th { background: var(--as-surface); font-weight: 600; }

/* ── Related Articles ──────────────────────────────────────── */
.art-related { margin-top: 40px; padding-top: 32px; border-top: 1px solid var(--as-border); }
.art-related__heading {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
    font-weight: 700;
    color: var(--as-text);
    margin: 0 0 16px;
}
.art-related__heading span { color: var(--as-blue); }
.art-related__grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}
.art-related-card {
    display: block;
    padding: 14px 16px;
    border: 1px solid var(--as-border);
    border-radius: var(--as-radius);
    text-decoration: none;
    transition: border-color var(--as-trans), box-shadow var(--as-trans);
}
.art-related-card:hover { border-color: #aaa; box-shadow: 0 2px 8px rgba(0,0,0,.08); }
.art-related-card__title {
    font-size: .85rem;
    font-weight: 600;
    color: var(--as-text);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.art-related-card__stats {
    display: flex;
    gap: 10px;
    font-size: .72rem;
    color: var(--as-muted);
}

/* ── YouTube-Style Comments ────────────────────────────────── */
.art-comments {
    margin-top: 40px;
    padding-top: 28px;
    border-top: 1px solid var(--as-border);
}
.art-comments__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    gap: 16px;
    flex-wrap: wrap;
}
.art-comments__count {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--as-text);
    margin: 0;
}
.art-comments__sort {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: .82rem;
    color: var(--as-muted);
}
.art-sort-btn {
    padding: 5px 12px;
    border-radius: 20px;
    border: none;
    background: none;
    font-size: .8rem;
    font-weight: 500;
    color: var(--as-muted);
    cursor: pointer;
    transition: background var(--as-trans), color var(--as-trans);
}
.art-sort-btn:hover   { background: var(--as-surface); color: var(--as-text); }
.art-sort-btn.is-active { background: var(--as-text); color: #fff; }

/* Comment form */
.art-comment-form {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 32px;
}
.art-comment-form__avatar { border-radius: 50%; width: 40px; height: 40px; flex-shrink: 0; }
.art-comment-form__right  { flex: 1; }
.art-comment-form__input {
    width: 100%;
    border: none;
    border-bottom: 1px solid var(--as-border);
    border-radius: 0;
    padding: 8px 4px;
    font-size: .9rem;
    font-family: inherit;
    resize: none;
    background: none;
    color: var(--as-text);
    outline: none;
    transition: border-color var(--as-trans);
    box-sizing: border-box;
    overflow: hidden;
}
.art-comment-form__input:focus { border-bottom-color: var(--as-text); }
.art-comment-form__actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 12px;
}
.art-comment-login {
    margin-bottom: 28px;
}

.art-btn-ghost, .art-btn-primary {
    padding: 8px 18px;
    border-radius: 20px;
    font-size: .83rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: background var(--as-trans);
    font-family: inherit;
}
.art-btn-ghost   { background: none; color: var(--as-muted); }
.art-btn-ghost:hover { background: var(--as-surface); color: var(--as-text); }
.art-btn-primary { background: var(--as-blue); color: #fff; }
.art-btn-primary:hover { background: #0452b0; }
.art-btn-primary:disabled { background: #ccc; cursor: not-allowed; }

/* Comment item */
.art-comment-list { display: flex; flex-direction: column; gap: 0; }
.art-comment {
    display: flex;
    gap: 14px;
    padding: 14px 0;
}
.art-comment + .art-comment { border-top: 1px solid rgba(0,0,0,.05); }
.art-comment__avatar     { border-radius: 50%; width: 40px; height: 40px; flex-shrink: 0; object-fit: cover; }
.art-comment__avatar--sm { width: 32px; height: 32px; }
.art-comment__body { flex: 1; min-width: 0; }
.art-comment__head {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 5px;
}
.art-comment__author {
    font-size: .85rem;
    font-weight: 600;
    color: var(--as-text);
}
.art-comment__time {
    font-size: .75rem;
    color: var(--as-muted);
}
.art-comment__text {
    font-size: .88rem;
    color: var(--as-text);
    line-height: 1.6;
    margin-bottom: 8px;
    word-break: break-word;
}
.art-comment__actions {
    display: flex;
    align-items: center;
    gap: 4px;
}
.art-comment-react {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 8px;
    border-radius: 20px;
    border: none;
    background: none;
    color: var(--as-muted);
    font-size: .78rem;
    cursor: pointer;
    transition: color var(--as-trans), background var(--as-trans);
}
.art-comment-react:hover { background: var(--as-surface); color: var(--as-text); }
.art-comment-react--like.is-active   { color: var(--as-blue); }
.art-comment-react--like.is-active svg { fill: var(--as-blue); }
.art-comment-react--dislike.is-active { color: var(--as-red); }
.art-comment-react--dislike.is-active svg { fill: var(--as-red); }
.art-comment-react svg { transition: fill var(--as-trans); }
.art-comment-like-count { font-size: .75rem; min-width: 8px; }

.art-comment-reply-btn {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    border-radius: 20px;
    border: none;
    background: none;
    color: var(--as-muted);
    font-size: .78rem;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--as-trans), color var(--as-trans);
}
.art-comment-reply-btn:hover { background: var(--as-surface); color: var(--as-text); }

/* Replies */
.art-replies { margin-top: 10px; margin-left: 0; }
.art-show-replies {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 20px;
    border: none;
    background: none;
    color: var(--as-blue);
    font-size: .82rem;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--as-trans);
    margin-bottom: 8px;
}
.art-show-replies:hover { background: rgba(6,95,212,.07); }
.art-show-replies svg { transition: transform .2s; }
.art-show-replies.is-open svg { transform: rotate(180deg); }

.art-replies-list { padding-left: 16px; border-left: 2px solid var(--as-border); }
.art-comment--reply .art-comment__avatar { width: 32px; height: 32px; }
.art-comment--reply { padding: 10px 0; }

/* Reply form */
.art-reply-form {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.art-reply-input { font-size: .85rem !important; }

/* ── Archive card stats (used in archive-tannivan_article.php) ── */
.hub-card-stats {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0 0;
    border-top: 1px solid rgba(0,0,0,.06);
    margin-top: 10px;
}
.hub-card-stat {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: .72rem;
    color: #888;
    white-space: nowrap;
}
.hub-card-stat svg { width: 12px; height: 12px; opacity: .7; }

/* ── Hub Admin: article card stats row ───────────────────────── */
.ha-article-card__stats {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 14px;
    border-top: 1px solid var(--ha-border);
    background: rgba(0,0,0,.08);
}
.ha-article-stat {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: .72rem;
    color: var(--ha-text-dim);
    white-space: nowrap;
}
.ha-article-stat svg { width: 12px; height: 12px; }

/* ── Notification Bell ───────────────────────────────────────── */
.ha-bell-wrap { position: relative; }
.ha-bell-btn {
    position: relative;
    width: 38px;
    height: 38px;
    border-radius: 50%;
    border: 1px solid var(--ha-border);
    background: var(--ha-surface);
    color: var(--ha-text-dim);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--ha-trans);
}
.ha-bell-btn:hover { border-color: var(--ha-cyan); color: var(--ha-cyan); }
.ha-bell-badge {
    position: absolute;
    top: -3px;
    right: -3px;
    min-width: 18px;
    height: 18px;
    border-radius: 9px;
    background: var(--ha-red);
    color: #fff;
    font-size: .65rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
    border: 2px solid var(--ha-bg);
    animation: as-bell-ring .6s ease-in-out;
}
.ha-bell-badge--hidden { display: none; }
@keyframes as-bell-ring {
    0%,100% { transform: rotate(0); }
    20%      { transform: rotate(12deg); }
    40%      { transform: rotate(-10deg); }
    60%      { transform: rotate(8deg); }
    80%      { transform: rotate(-6deg); }
}

.ha-notif-panel {
    position: absolute;
    right: 0;
    top: calc(100% + 10px);
    width: 360px;
    max-width: calc(100vw - 20px);
    background: var(--ha-surface);
    border: 1px solid var(--ha-border-hover);
    border-radius: var(--ha-radius);
    box-shadow: 0 16px 60px rgba(0,0,0,.6);
    z-index: 2000;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px) scale(.97);
    transition: opacity .2s, transform .2s cubic-bezier(.4,0,.2,1);
}
.ha-notif-panel.is-open { opacity: 1; pointer-events: all; transform: translateY(0) scale(1); }
.ha-notif-panel__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px 12px;
    border-bottom: 1px solid var(--ha-border);
}
.ha-notif-panel__title { font-size: .88rem; font-weight: 700; color: var(--ha-text); }
.ha-notif-mark-all {
    font-size: .72rem;
    color: var(--ha-cyan);
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    text-decoration: underline dotted;
}
.ha-notif-list { max-height: 340px; overflow-y: auto; }
.ha-notif-empty {
    padding: 28px 16px;
    text-align: center;
    font-size: .82rem;
    color: var(--ha-text-dim);
}
.ha-notif-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 16px;
    border-bottom: 1px solid var(--ha-border);
    cursor: pointer;
    transition: background var(--ha-trans);
}
.ha-notif-item:hover { background: var(--ha-surface-2); }
.ha-notif-item.is-unread { background: rgba(0,212,255,.05); }
.ha-notif-item__icon {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex-shrink: 0;
    background: var(--ha-surface-2);
}
.ha-notif-item__body { flex: 1; min-width: 0; }
.ha-notif-item__msg {
    font-size: .8rem;
    color: var(--ha-text);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.ha-notif-item__time { font-size: .7rem; color: var(--ha-text-dim); margin-top: 3px; }
.ha-notif-unread-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--ha-cyan);
    flex-shrink: 0;
    margin-top: 4px;
}
.ha-notif-panel__foot {
    border-top: 1px solid var(--ha-border);
    padding: 0;
    display: flex;
    justify-content: center;
}

/* Notifications full-page view */
.ha-notif-full-list { display: flex; flex-direction: column; gap: 8px; }
.ha-notif-full-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px 20px;
    background: var(--ha-surface);
    border: 1px solid var(--ha-border);
    border-radius: var(--ha-radius);
    transition: border-color var(--ha-trans);
    position: relative;
}
.ha-notif-full-item:hover { border-color: var(--ha-border-hover); }
.ha-notif-full-item.is-unread { border-left: 3px solid var(--ha-cyan); }
.ha-notif-full-icon {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}
.ha-notif-full-icon--cyan  { background: rgba(0,212,255,.12); }
.ha-notif-full-icon--green { background: rgba(34,163,0,.12); }
.ha-notif-full-icon--red   { background: rgba(255,77,109,.12); }
.ha-notif-full-body { flex: 1; min-width: 0; }
.ha-notif-full-msg  { font-size: .88rem; color: var(--ha-text); line-height: 1.5; margin-bottom: 6px; }
.ha-notif-full-meta { display: flex; align-items: center; gap: 14px; font-size: .75rem; color: var(--ha-text-dim); }
.ha-notif-link { color: var(--ha-cyan); text-decoration: none; }
.ha-notif-link:hover { text-decoration: underline; }
.ha-notif-unread-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--ha-cyan); flex-shrink: 0;
}

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 768px) {
    .art-body-grid { grid-template-columns: 1fr; }
    .art-stats { gap: 2px; overflow-x: auto; flex-wrap: nowrap; }
    .art-stat-sep--push { display: none; }
    .art-share-panel { right: auto; left: 0; }
    .art-related__grid { grid-template-columns: 1fr; }
    .ha-notif-panel { width: calc(100vw - 16px); right: -60px; }
}