/* Trang Tạp chí & Tin tức (frontend/views/news/index.php) */
.kn-page {
    --kn-bg: #f8f8fb;
    --kn-surface: #ffffff;
    --kn-ink: #14161c;
    --kn-text: #4a4f5c;
    --kn-muted: #8a8f9c;
    --kn-line: #e7e8ee;
    --kn-gold: #8a6d2f;
    --kn-gold-soft: #efe8d8;
    --kn-accent-bg: #f2f3f8;
    --kn-serif: "Noto Serif", Georgia, serif;
    background: var(--kn-bg);
    color: var(--kn-text);
    font-family: "Be Vietnam Pro", sans-serif;
    margin-top: 80px; /* bù header fixed, giống .news-block cũ */
    padding: 24px 0 64px;
}
.kn-page a { color: inherit; text-decoration: none; }
.kn-container { max-width: 1200px; margin: 0 auto; padding: 0 16px; }

/* Topbar */
.kn-topbar {
    display: flex; justify-content: space-between; align-items: center; gap: 12px;
    font-size: 12px; padding-bottom: 20px; border-bottom: 1px solid var(--kn-line);
}
.kn-breadcrumb { display: flex; gap: 8px; color: var(--kn-muted); }
.kn-breadcrumb strong { color: var(--kn-ink); font-weight: 500; }
.kn-breadcrumb a:hover { color: var(--kn-ink); }
.kn-issue { display: flex; align-items: center; gap: 8px; color: var(--kn-muted); text-transform: uppercase; letter-spacing: .04em; font-size: 11px; }
.kn-dot { width: 7px; height: 7px; border-radius: 50%; background: #d7b56d; }

/* Heading */
.kn-hero-head { padding: 32px 0 28px; border-bottom: 1px solid var(--kn-line); }
.kn-eyebrow-tag {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--kn-gold-soft); color: var(--kn-gold);
    font-size: 10px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
    padding: 5px 10px; border-radius: 3px;
}
.kn-title { font-family: var(--kn-serif); color: var(--kn-ink); font-size: 34px; font-weight: 600; margin: 16px 0 12px; line-height: 1.2; }
.kn-lead { max-width: 560px; font-size: 14px; line-height: 1.7; margin: 0; }

/* Toolbar */
.kn-toolbar {
    display: flex; justify-content: space-between; align-items: flex-start; gap: 16px;
    padding: 24px 0 28px; border-bottom: 1px solid var(--kn-line); margin-bottom: 32px;
}
.kn-tabs { display: flex; flex-wrap: wrap; gap: 6px; max-width: 420px; }
.kn-tab {
    font-size: 12px; padding: 7px 12px; border-radius: 3px;
    background: var(--kn-accent-bg); border: 1px solid var(--kn-line); color: var(--kn-ink);
    transition: background .15s, color .15s;
}
.kn-tab:hover { background: #e8e9f0; }
.kn-page .kn-tab.is-active { background: var(--kn-ink); border-color: var(--kn-ink); color: #fff; }
.kn-filters { display: flex; gap: 8px; }
.kn-search {
    display: flex; align-items: center; gap: 8px; margin: 0;
    background: var(--kn-surface); border: 1px solid var(--kn-line); border-radius: 3px;
    padding: 0 10px; height: 34px; width: 240px; color: var(--kn-muted);
}
.kn-search input { border: 0; outline: 0; background: transparent; font-size: 12px; width: 100%; color: var(--kn-ink); }
.kn-select {
    height: 34px; border: 1px solid var(--kn-line); border-radius: 3px; background: var(--kn-surface);
    font-size: 12px; padding: 0 28px 0 10px; color: var(--kn-ink); min-width: 110px;
}

/* Featured */
.kn-featured { display: grid; grid-template-columns: 1.4fr 1fr; gap: 20px; margin-bottom: 48px; }
.kn-featured.is-single { grid-template-columns: 1fr; }
.kn-feature-main, .kn-feature-side, .kn-card {
    background: var(--kn-surface); border: 1px solid var(--kn-line); border-radius: 2px; overflow: hidden;
    display: flex; flex-direction: column;
}
.kn-feature-media {
    position: relative; display: block; aspect-ratio: 16 / 10;
    background: #ddd center / cover no-repeat;
}
.kn-badges { position: absolute; top: 14px; left: 14px; display: flex; gap: 6px; }
.kn-badge {
    display: inline-block; font-size: 9px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase;
    padding: 4px 8px; border-radius: 2px;
}
.kn-badge--gold { background: #5a4a22; color: #f3e3b8; }
.kn-badge--light { background: rgba(255, 255, 255, .92); color: var(--kn-ink); }
.kn-feature-body { padding: 24px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.kn-feature-title { font-family: var(--kn-serif); color: var(--kn-ink); font-size: 24px; line-height: 1.3; font-weight: 600; margin: 0 0 12px; }
.kn-feature-title a:hover, .kn-side-title a:hover, .kn-card-title a:hover { color: var(--kn-gold); }
.kn-feature-excerpt { font-size: 13px; line-height: 1.7; margin: 0 0 20px; }
.kn-feature-foot {
    margin-top: auto; padding-top: 16px; border-top: 1px solid var(--kn-line);
    display: flex; justify-content: space-between; align-items: center; gap: 12px;
}
.kn-publish { display: flex; align-items: center; gap: 6px; font-size: 12px; color: var(--kn-muted); }
.kn-publish svg { color: var(--kn-gold); flex-shrink: 0; }
.kn-readmore { font-size: 12px; font-weight: 600; color: var(--kn-ink); white-space: nowrap; }
.kn-readmore span { color: var(--kn-gold); margin-left: 4px; }

.kn-side-head { padding: 20px 20px 16px; }
.kn-side-top { display: flex; justify-content: space-between; gap: 8px; margin-bottom: 10px; }
.kn-eyebrow { font-size: 10px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--kn-gold); }
.kn-side-note { font-size: 10px; color: var(--kn-muted); }
.kn-side-title { font-family: var(--kn-serif); color: var(--kn-ink); font-size: 20px; line-height: 1.35; font-weight: 600; margin: 0 0 8px; }
.kn-side-excerpt { font-size: 12px; line-height: 1.6; margin: 0; }
.kn-side-media {
    position: relative; display: flex; align-items: center; flex: 1;
    background: var(--kn-accent-bg); padding: 16px 20px;
}
.kn-side-img { display: block; width: 100%; aspect-ratio: 16 / 10; background: #ddd center / cover no-repeat; }
.kn-chip-dark {
    position: absolute; top: 8px; right: 12px; background: var(--kn-ink); color: #fff;
    font-size: 9px; font-weight: 700; padding: 4px 8px; border-radius: 2px; text-transform: uppercase;
}
.kn-side-foot {
    display: flex; justify-content: space-between; align-items: center; gap: 8px;
    padding: 14px 20px; border-top: 1px solid var(--kn-line); font-size: 11px; color: var(--kn-muted);
}
.kn-side-foot a { color: var(--kn-ink); font-weight: 600; }

/* Latest grid */
.kn-section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 12px; margin-bottom: 20px; }
.kn-section-title { font-family: var(--kn-serif); color: var(--kn-ink); font-size: 24px; font-weight: 600; margin: 6px 0 0; }
.kn-count { font-size: 11px; color: var(--kn-muted); white-space: nowrap; }
.kn-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.kn-card-media {
    position: relative; display: block; aspect-ratio: 16 / 10; background: #ddd center / cover no-repeat;
}
.kn-card-media .kn-badge { position: absolute; top: 10px; left: 10px; }
.kn-card-body { padding: 16px 16px 0; display: flex; flex-direction: column; flex: 1; }
.kn-card-meta { font-size: 11px; color: var(--kn-muted); display: flex; align-items: center; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.kn-card-meta .kn-publish { font-size: 11px; gap: 4px; }
.kn-sep { color: #c5c7d0; }
.kn-card-title {
    font-family: var(--kn-serif); color: var(--kn-ink); font-size: 16px; line-height: 1.4; font-weight: 600; margin: 0 0 8px;
}
.kn-card-excerpt {
    font-size: 11px; line-height: 1.6; margin: 0 0 16px;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.kn-card-foot {
    margin-top: auto; display: flex; justify-content: space-between; align-items: center;
    padding: 14px 0; border-top: 1px solid var(--kn-line);
    font-size: 12px; font-weight: 600; color: var(--kn-gold) !important;
}
.kn-card-foot span:last-child { color: var(--kn-muted); font-weight: 400; transition: transform .15s; }
.kn-card:hover .kn-card-foot span:last-child { transform: translateX(3px); }
.kn-empty { padding: 48px 0; text-align: center; color: var(--kn-muted); }

/* Pager */
.kn-pager { display: flex; justify-content: center; align-items: center; gap: 6px; margin-top: 40px; }
.kn-page-btn {
    min-width: 30px; height: 30px; padding: 0 6px; display: inline-flex; align-items: center; justify-content: center;
    border: 1px solid var(--kn-line); border-radius: 3px; background: var(--kn-surface); font-size: 12px; color: var(--kn-ink);
}
.kn-page-btn:hover { border-color: var(--kn-ink); }
.kn-page .kn-page-btn.is-active { background: var(--kn-ink); border-color: var(--kn-ink); color: #fff; }
.kn-page-btn.is-disabled { color: #c5c7d0; }
.kn-page-gap { color: var(--kn-muted); font-size: 12px; padding: 0 2px; }

/* Responsive */
@media (max-width: 991px) {
    .kn-featured { grid-template-columns: 1fr; }
    .kn-grid { grid-template-columns: repeat(2, 1fr); }
    .kn-toolbar { flex-direction: column; }
    .kn-tabs { max-width: none; }
}
@media (max-width: 575px) {
    .kn-page { margin-top: 64px; padding-top: 16px; } /* header mobile cao 64px */
    .kn-topbar { flex-direction: column; align-items: flex-start; }
    .kn-title { font-size: 26px; }
    .kn-grid { grid-template-columns: 1fr; }
    .kn-filters { width: 100%; }
    .kn-search { flex: 1; width: auto; }
    .kn-feature-title { font-size: 20px; }
    .kn-section-head { flex-direction: column; align-items: flex-start; }
}

/* ===== Chi tiết bài viết (frontend/views/news/view.php) ===== */
.kn-article-page { --kn-blue-soft: #e6ebf7; }
.kn-article-crumb { font-size: 13px; flex-wrap: wrap; align-items: center; padding-bottom: 8px; }
.kn-article-head { max-width: 760px; margin: 24px auto 32px; text-align: center; }
.kn-article-badges { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; }
.kn-badge--gold-soft { background: var(--kn-gold-soft); color: #6f5624; border: 1px solid #e0d4b6; }
.kn-badge--blue-soft { background: var(--kn-blue-soft); color: #33436b; border: 1px solid #d3dbef; }
.kn-article-title { font-family: var(--kn-serif); color: var(--kn-ink); font-size: 34px; line-height: 1.3; font-weight: 600; margin: 18px 0 16px; }
.kn-article-lead { font-style: italic; font-size: 14px; line-height: 1.75; color: var(--kn-muted); max-width: 620px; margin: 0 auto; }
.kn-article-meta {
    margin-top: 24px; padding: 14px 0; border-top: 1px solid var(--kn-line); border-bottom: 1px solid var(--kn-line);
    display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; text-align: left;
}
.kn-article-meta .kn-publish { flex-wrap: wrap; }
.kn-article-tools { display: flex; gap: 6px; }
.kn-tool {
    height: 30px; min-width: 30px; padding: 0 8px; border: 1px solid var(--kn-line); border-radius: 4px; background: var(--kn-surface);
    font-size: 11px; color: var(--kn-ink); display: inline-flex; align-items: center; justify-content: center; gap: 6px; cursor: pointer;
}
.kn-tool:hover { border-color: var(--kn-ink); }
.kn-tool[hidden] { display: none; }
.kn-tool--strong { font-weight: 700; font-size: 12px; }
.kn-tool--text { padding: 0 12px; }

.kn-article-cover { margin: 0 0 40px; }
.kn-article-cover img { display: block; width: 100%; max-height: 560px; object-fit: cover; border-radius: 2px; }

.kn-article-layout { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 40px; align-items: start; }

/* Nội dung bài (HTML từ trình soạn thảo) */
.kn-article-body { --kn-body-size: 16px; font-size: var(--kn-body-size); line-height: 1.8; color: #2f3440; overflow-wrap: break-word; }
.kn-article-body > p:first-of-type::first-letter {
    float: left; font-family: var(--kn-serif); font-size: 4.2em; line-height: .85; font-weight: 700;
    color: var(--kn-gold); margin: 6px 10px 0 0;
}
.kn-article-body p { margin: 0 0 1.1em; }
.kn-article-body h2, .kn-article-body h3 {
    font-family: var(--kn-serif); color: var(--kn-ink); font-weight: 600; line-height: 1.35; scroll-margin-top: 100px;
}
.kn-article-body h2 { font-size: 1.6em; margin: 1.6em 0 .7em; padding-top: 1.2em; border-top: 1px solid var(--kn-line); }
.kn-article-body h3 { font-size: 1.25em; margin: 1.4em 0 .6em; }
.kn-article-body a { color: var(--kn-gold); text-decoration: underline; }
.kn-article-body strong { color: var(--kn-ink); }
.kn-article-body img { max-width: 100%; height: auto !important; border-radius: 2px; }
.kn-article-body figure { margin: 1.5em 0; }
.kn-article-body figcaption { font-size: 12px; font-style: italic; color: var(--kn-muted); text-align: center; margin-top: 8px; }
.kn-article-body blockquote {
    margin: 1.6em 0; padding: 18px 24px; border-left: 3px solid #c9b27a; background: var(--kn-accent-bg);
    font-family: var(--kn-serif); font-style: italic; font-size: 1.25em; line-height: 1.55; color: var(--kn-ink);
}
.kn-article-body blockquote p:last-child { margin-bottom: 0; }
.kn-article-body ul, .kn-article-body ol { padding-left: 1.4em; margin: 0 0 1.1em; }
.kn-article-body table { width: 100%; border-collapse: collapse; margin: 1.4em 0; font-size: .9em; display: block; overflow-x: auto; }
.kn-article-body th, .kn-article-body td { border: 1px solid var(--kn-line); padding: 8px 10px; }
.kn-article-body iframe, .kn-article-body video { max-width: 100%; }
.kn-article-body iframe[src*="youtube"] { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; border: 0; border-radius: 2px; margin: 1.5em 0; }

.kn-article-tags { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--kn-line); }
.kn-eyebrow-muted { font-size: 10px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; color: var(--kn-muted); margin-bottom: 8px; }
.kn-tag-list { display: flex; flex-wrap: wrap; gap: 6px; }
.kn-tag { font-size: 10px; font-weight: 600; padding: 4px 10px; border-radius: 3px; background: var(--kn-accent-bg); border: 1px solid var(--kn-line); color: var(--kn-ink); }
.kn-tag:hover { border-color: var(--kn-ink); }
.kn-article-helpful {
    margin-top: 24px; padding: 16px 20px; background: var(--kn-accent-bg); border: 1px solid var(--kn-line); border-radius: 3px;
    display: flex; justify-content: space-between; align-items: center; gap: 12px; font-size: 13px; font-weight: 600; color: var(--kn-ink);
}

/* Sidebar */
.kn-article-aside { display: flex; flex-direction: column; gap: 20px; }
.kn-article-aside .kn-eyebrow { font-size: 12px; }
.kn-aside-box { padding: 20px; }
.kn-product-box { padding-top: 38px; }
.kn-aside-box { position: relative; background: var(--kn-surface); border: 1px solid var(--kn-line); border-radius: 3px; padding: 16px; }
.kn-aside-title { display: flex; align-items: center; gap: 8px; font-size: 16px; font-weight: 600; color: var(--kn-ink); }
.kn-aside-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.kn-aside-head a { font-size: 13px; color: var(--kn-muted); }
.kn-toc .kn-aside-title { padding-bottom: 12px; margin-bottom: 10px; border-bottom: 1px solid var(--kn-line); }
.kn-toc-list { list-style: none; margin: 0; padding: 0; }
.kn-toc-list a { display: block; font-size: 14px; line-height: 1.5; padding: 6px 0 6px 12px; border-left: 2px solid transparent; color: var(--kn-text); }
.kn-page .kn-toc-list a.is-active, .kn-toc-list a:hover { border-left-color: var(--kn-gold); color: var(--kn-ink); font-weight: 600; }

.kn-product-flag {
    position: absolute; top: 0; right: 0; background: #5a4a22; color: #f3e3b8;
    font-size: 11px; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; padding: 4px 8px;
}
.kn-product-name { display: block; font-family: var(--kn-serif); font-size: 20px; font-weight: 600; color: var(--kn-ink); line-height: 1.35; margin: 6px 0 12px; }
.kn-product-img { display: block; background: var(--kn-accent-bg); border-radius: 2px; }
.kn-product-img img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: contain; }
.kn-product-specs { margin: 14px 0 0; font-size: 14px; }
.kn-product-specs > div { display: flex; justify-content: space-between; gap: 10px; padding: 4px 0; }
.kn-product-specs dt { font-weight: 400; color: var(--kn-muted); }
.kn-product-specs dd { margin: 0; font-weight: 600; color: var(--kn-ink); text-align: right; }
.kn-product-foot { display: flex; justify-content: space-between; align-items: flex-end; gap: 10px; margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--kn-line); }
.kn-product-price-label { font-size: 13px; color: var(--kn-muted); }
.kn-product-price { font-size: 20px; font-weight: 700; color: var(--kn-ink); }
.kn-product-price del { display: block; font-size: 13px; font-weight: 400; color: var(--kn-muted); }
.kn-page .kn-btn-dark { background: var(--kn-ink); color: #fff; font-size: 14px; font-weight: 600; padding: 10px 18px; border-radius: 3px; white-space: nowrap; }
.kn-page .kn-btn-dark:hover { background: #2c2f38; }

.kn-related { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 12px; }
.kn-related li { display: grid; grid-template-columns: 64px 1fr; gap: 10px; align-items: start; }
.kn-related-img { display: block; width: 64px; height: 50px; background: #ddd center / cover no-repeat; border-radius: 2px; }
.kn-related-title {
    font-size: 14px; font-weight: 600; line-height: 1.45; color: var(--kn-ink);
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.kn-related-title:hover { color: var(--kn-gold); }
.kn-related-date { font-size: 12px; color: var(--kn-muted); margin-top: 2px; }

/* Bài trước / kế tiếp */
.kn-article-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 56px; padding-top: 32px; border-top: 1px solid var(--kn-line); }
.kn-nav-item {
    display: flex; align-items: center; gap: 16px; padding: 18px 20px; min-width: 0;
    background: var(--kn-surface); border: 1px solid var(--kn-line); border-radius: 3px;
}
.kn-nav-item:hover { border-color: var(--kn-ink); }
.kn-nav-item > span:not(.kn-nav-arrow) { min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.kn-nav-item--next { justify-content: flex-end; text-align: right; }
.kn-nav-arrow { font-size: 18px; color: var(--kn-ink); flex-shrink: 0; }
.kn-nav-title {
    font-family: var(--kn-serif); font-size: 15px; font-weight: 600; color: var(--kn-ink);
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.kn-toast {
    position: fixed; left: 50%; bottom: 24px; transform: translate(-50%, 20px); opacity: 0; pointer-events: none;
    background: var(--kn-ink); color: #fff; font-size: 12px; padding: 10px 16px; border-radius: 4px; transition: .2s; z-index: 2000;
}
.kn-toast.is-show { opacity: 1; transform: translate(-50%, 0); }

@media (max-width: 991px) {
    .kn-article-layout { grid-template-columns: 1fr; }
}
@media (max-width: 575px) {
    .kn-article-title { font-size: 24px; }
    .kn-article-meta { flex-direction: column; align-items: flex-start; }
    .kn-article-nav { grid-template-columns: 1fr; }
    .kn-article-helpful { flex-direction: column; align-items: flex-start; }
}