/* ==========================================================================
   INSIGHTS (blog): listing, AJAX search, cards, article page
   ========================================================================== */
:root { --ins-ink: #111A2B; --ins-ink-2: #173E6E; --ins-muted: #6B7280; --ins-line: #E5E7EB; --ins-ease: cubic-bezier(.16, 1, .3, 1); }

/* ---------------- Hero ---------------- */
.ins-hero, .ins-article-hero {
    position: relative; overflow: hidden; isolation: isolate;
    padding: 8.5rem 0 3.5rem; color: #fff;
    background: linear-gradient(145deg, #0B1220 0%, #111A2B 45%, #162033 80%);
}
.ins-hero-glow { position: absolute; inset: 0; z-index: -1; pointer-events: none;
    background: radial-gradient(600px 300px at 85% 10%, rgba(79,207,255,.18), transparent 70%),
                radial-gradient(500px 260px at 10% 90%, rgba(155,199,59,.14), transparent 70%),
                radial-gradient(420px 240px at 60% 100%, rgba(244,162,30,.12), transparent 70%); }
.ins-hero .breadcrumb-list, .ins-article-hero .breadcrumb-list { margin-bottom: 1.2rem; }
.ins-eyebrow {
    display: inline-flex; align-items: center; gap: .45rem; margin-bottom: 1rem;
    padding: .35rem .8rem; border-radius: 999px;
    font-size: .72rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase;
    color: #fff; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.14);
}
.ins-eyebrow i { color: #FDC943; }
.ins-hero h1 { margin: 0 0 .7rem; max-width: 780px; color: #fff; font-size: clamp(2rem, 4.4vw, 3.3rem); line-height: 1.08; letter-spacing: -.02em; }
.ins-hero h1 span { background: linear-gradient(90deg, #4FCFFF, #9BC73B 55%, #FDC943); -webkit-background-clip: text; background-clip: text; color: transparent; }
.ins-hero > .container > p { max-width: 620px; margin: 0 0 1.8rem; font-size: 1.06rem; color: rgba(226,230,238,.82); }
.ins-hero-stats { display: flex; gap: 1.5rem; margin-top: 1.1rem; font-size: .86rem; color: rgba(226,230,238,.7); }
.ins-hero-stats strong { color: #fff; }

/* ---------------- Search ---------------- */
.ins-search { position: relative; max-width: 640px; }
.ins-search input {
    width: 100%; height: 60px; padding: 0 7.2rem 0 3.3rem;
    border-radius: 16px; border: 1px solid rgba(255,255,255,.16);
    background: rgba(255,255,255,.96); color: #111A2B;
    font: inherit; font-size: 1rem;
    box-shadow: 0 24px 50px -24px rgba(0,0,0,.7);
    transition: box-shadow .25s, border-color .25s;
}
.ins-search input::-webkit-search-cancel-button { display: none; }
.ins-search input:focus { outline: none; border-color: #4FCFFF; box-shadow: 0 0 0 4px rgba(79,207,255,.22), 0 24px 50px -24px rgba(0,0,0,.7); }
.ins-search-icon { position: absolute; left: 1.25rem; top: 30px; transform: translateY(-50%); color: #6B7280; }
.ins-clear { position: absolute; right: 3.4rem; top: 30px; transform: translateY(-50%); width: 30px; height: 30px; border-radius: 50%; border: 0; background: #EEF0F4; color: #4B5563; cursor: pointer; }
.ins-clear:hover { background: #173E6E; color: #fff; }
.ins-clear[hidden] { display: none; }
.ins-clear { display: inline-flex; align-items: center; justify-content: center; animation: insFade .2s ease; }
@keyframes insFade { from { opacity: 0; } }
.ins-kbd { position: absolute; right: 1rem; top: 30px; transform: translateY(-50%); padding: .2rem .5rem; border-radius: 7px; font: 700 .75rem var(--font-sans, sans-serif); color: #6B7280; background: #F3F4F6; border: 1px solid #E5E7EB; }
.ins-spinner { position: absolute; right: 3.4rem; top: 30px; width: 18px; height: 18px; margin-top: -9px; border-radius: 50%; border: 2px solid #D1D5DB; border-top-color: #173E6E; opacity: 0; }
.ins-search.is-loading .ins-spinner { opacity: 1; animation: insSpin .7s linear infinite; }
.ins-search.is-loading .ins-clear { visibility: hidden; }
@keyframes insSpin { to { transform: rotate(360deg); } }
.ins-suggest {
    position: absolute; left: 0; right: 0; top: calc(100% + 8px); z-index: 30;
    padding: .4rem; border-radius: 16px; background: #fff; color: #111A2B;
    box-shadow: 0 30px 60px -20px rgba(0,0,0,.45); border: 1px solid #E5E7EB;
    animation: insPop .22s var(--ins-ease);
}
.ins-suggest[hidden] { display: none; }
@keyframes insPop { from { opacity: 0; transform: translateY(-6px); } }
.ins-suggest a { display: flex; align-items: center; gap: .8rem; padding: .65rem .75rem; border-radius: 11px; color: #111A2B; }
.ins-suggest a.is-active, .ins-suggest a:hover { background: #F3F4F6; }
.ins-suggest a i { width: 32px; height: 32px; border-radius: 9px; flex-shrink: 0; display: inline-flex; align-items: center; justify-content: center; color: #fff; background: linear-gradient(135deg, #1E8FD0, #16508E); font-size: .75rem; }
.ins-suggest a span { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.ins-suggest a strong { font-size: .9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.ins-suggest a small { font-size: .74rem; color: #6B7280; }
.ins-suggest mark { background: rgba(253,201,67,.45); color: inherit; border-radius: 3px; }
.ins-suggest-all { display: block; padding: .55rem .75rem; font-size: .82rem; font-weight: 700; color: #173E6E; border-top: 1px solid #F3F4F6; margin-top: .3rem; }
.ins-suggest-empty { padding: .9rem; font-size: .88rem; color: #6B7280; }
.ins-sg-section + .ins-sg-section { margin-top: .35rem; padding-top: .55rem; border-top: 1px solid #F3F4F6; }
.ins-sg-head { display: block; padding: .5rem .75rem .45rem; font-size: .68rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: #9CA3AF; }
.ins-sg-chips { display: flex; flex-wrap: wrap; gap: .4rem; padding: 0 .75rem .45rem; }
.ins-sg-chips button { display: inline-flex; align-items: center; gap: .4rem; height: 32px; padding: 0 .75rem; border-radius: 999px; border: 1px solid #E5E7EB; background: #F9FAFB; font: inherit; font-size: .8rem; font-weight: 600; color: #374151; cursor: pointer; transition: all .2s; }
.ins-sg-chips button i { font-size: .68rem; color: #9CA3AF; }
.ins-sg-chips button em { font-style: normal; font-size: .7rem; color: #9CA3AF; }
.ins-sg-chips button:hover { border-color: #173E6E; color: #111A2B; background: #fff; transform: translateY(-1px); }
.ins-suggest.is-default a i { background: linear-gradient(135deg, #F4A21E, #E0751B); }

/* ---------------- Filters ---------------- */
.ins-body { padding: 2.5rem 0 4rem; background: #F7F8FA; }
.ins-filters { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }
.ins-chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.ins-chip-btn {
    display: inline-flex; align-items: center; gap: .45rem;
    padding: .55rem .95rem; border-radius: 999px; border: 1px solid #E5E7EB; background: #fff;
    font: inherit; font-size: .86rem; font-weight: 600; color: #374151; cursor: pointer;
    transition: background .2s, color .2s, border-color .2s, transform .2s var(--ins-ease);
}
.ins-chip-btn span { padding: 0 .4rem; border-radius: 999px; font-size: .72rem; color: #6B7280; background: #F3F4F6; }
.ins-chip-btn:hover { border-color: #9CA3AF; transform: translateY(-1px); }
.ins-chip-btn.is-active { color: #fff; border-color: transparent; background: linear-gradient(135deg, #1E8FD0, #16508E); }
.ins-chip-btn.is-active span { color: #fff; background: rgba(255,255,255,.16); }
.ins-sort { display: flex; align-items: center; gap: .5rem; font-size: .84rem; color: #6B7280; }
.ins-sort select { height: 40px; padding: 0 2rem 0 .8rem; border-radius: 11px; border: 1px solid #E5E7EB; background: #fff; font: inherit; font-size: .86rem; font-weight: 600; color: #173E6E; cursor: pointer; }
.ins-result { margin: -0.5rem 0 1.25rem; font-size: .9rem; color: #4B5563; }
.ins-result[hidden] { display: none; }
.ins-reset { margin-left: .5rem; padding: 0; border: 0; background: none; font: inherit; font-weight: 700; color: #173E6E; text-decoration: underline; text-underline-offset: 3px; cursor: pointer; }

/* ---------------- Featured ---------------- */
.ins-featured {
    display: grid; grid-template-columns: 1.1fr 1fr; margin-bottom: 2rem;
    border-radius: 24px; overflow: hidden; background: #fff; border: 1px solid #E5E7EB;
    box-shadow: 0 30px 60px -40px rgba(10,12,16,.5);
}
.ins-featured[hidden] { display: none; }
.ins-featured-media { position: relative; min-height: 340px; overflow: hidden; }
.ins-featured-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ins-ease); }
.ins-featured:hover .ins-featured-media img { transform: scale(1.04); }
.ins-featured-body { padding: 2.4rem 2.4rem 2.2rem; display: flex; flex-direction: column; justify-content: center; }
.ins-featured-tag { align-self: flex-start; display: inline-flex; align-items: center; gap: .4rem; padding: .3rem .7rem; border-radius: 999px; font-size: .74rem; font-weight: 700; color: #92400E; background: #FEF3C7; }
.ins-featured h2 { margin: .9rem 0 .6rem; font-size: clamp(1.4rem, 2.4vw, 1.9rem); line-height: 1.2; }
.ins-featured h2 a { color: #111A2B; }
.ins-featured h2 a:hover { color: #1E75B0; text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 4px; }
.ins-featured p { margin: 0 0 1rem; color: #4B5563; line-height: 1.65; }
.ins-featured .ins-btn { align-self: flex-start; margin-top: 1.1rem; }

/* ---------------- Cards ---------------- */
.ins-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.ins-card {
    display: flex; flex-direction: column; border-radius: 20px; overflow: hidden; background: #fff; border: 1px solid #E5E7EB;
    transition: transform .35s var(--ins-ease), box-shadow .35s, border-color .25s;
    animation: insIn .5s var(--ins-ease) backwards; animation-delay: calc(var(--i, 0) * 45ms);
}
@keyframes insIn { from { opacity: 0; transform: translateY(14px); } }
.ins-card:hover { transform: translateY(-4px); border-color: transparent; box-shadow: 0 26px 46px -28px rgba(10,12,16,.55); }
.ins-card-media { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: #F3F4F6; }
.ins-card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .7s var(--ins-ease); }
.ins-card:hover .ins-card-media img { transform: scale(1.05); }
.ins-chip { position: absolute; left: 14px; top: 14px; padding: .3rem .7rem; border-radius: 999px; font-size: .72rem; font-weight: 700; color: #fff; background: rgba(15,18,24,.78); }
.ins-card-body { flex: 1; display: flex; flex-direction: column; padding: 1.2rem 1.3rem 1.2rem; }
.ins-meta { display: flex; flex-wrap: wrap; gap: .4rem 1rem; font-size: .78rem; color: #6B7280; }
.ins-meta i { margin-right: .25rem; }
.ins-card h3 { margin: .55rem 0 .5rem; font-size: 1.08rem; line-height: 1.35; }
.ins-card h3 a { color: #111A2B; }
.ins-card h3 a:hover { color: #1E75B0; }
.ins-card p { flex: 1; margin: 0 0 1rem; font-size: .9rem; line-height: 1.6; color: #4B5563; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.ins-card-foot { display: flex; justify-content: space-between; align-items: center; padding-top: .9rem; border-top: 1px solid #F3F4F6; }
.ins-author { display: inline-flex; align-items: center; gap: .5rem; font-size: .8rem; font-weight: 600; color: #374151; }
.ins-avatar { width: 28px; height: 28px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: .75rem; font-weight: 800; color: #fff; background: linear-gradient(135deg, #4FCFFF, #9BC73B 60%, #F4A21E); text-transform: uppercase; }
.ins-avatar-lg { width: 44px; height: 44px; font-size: 1rem; }
.ins-avatar-xl { width: 60px; height: 60px; font-size: 1.3rem; flex-shrink: 0; }
.ins-more { display: inline-flex; align-items: center; gap: .4rem; font-size: .84rem; font-weight: 700; color: #173E6E; }
.ins-more i { font-size: .72rem; transition: transform .25s var(--ins-ease); }
.ins-card:hover .ins-more i { transform: translateX(4px); }
.ins-grid.is-swapping { opacity: .45; transition: opacity .15s; }

/* ---------------- Buttons / empty / more ---------------- */
.ins-btn { display: inline-flex; align-items: center; gap: .5rem; height: 46px; padding: 0 1.3rem; border-radius: 999px; border: 0; font: inherit; font-weight: 700; font-size: .9rem; color: #fff; background: linear-gradient(135deg, #1E8FD0 0%, #1E75B0 55%, #16508E 100%); cursor: pointer; transition: transform .25s var(--ins-ease), box-shadow .25s; }
.ins-btn:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 16px 28px -14px rgba(10,12,16,.7); }
.ins-btn-ghost { color: #173E6E; background: #fff; border: 1.5px solid #E5E7EB; }
.ins-btn-ghost:hover { color: #173E6E; border-color: #173E6E; }
.ins-btn.is-loading { pointer-events: none; opacity: .7; }
.ins-btn.is-loading i { animation: insSpin .7s linear infinite; }
.ins-btn.is-loading i::before { content: '\f110'; }
.ins-more-wrap { display: flex; justify-content: center; margin-top: 2.2rem; }
.ins-more-wrap [hidden] { display: none; }
.ins-empty { padding: 3rem 1rem; text-align: center; border-radius: 20px; background: #fff; border: 1px dashed #D1D5DB; }
.ins-empty[hidden] { display: none; }
.ins-empty-icon { width: 56px; height: 56px; margin: 0 auto .8rem; border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; color: #fff; background: linear-gradient(135deg, #1E8FD0, #16508E); }
.ins-empty h3 { margin: 0 0 .3rem; }
.ins-empty p { margin: 0 0 1.1rem; color: #6B7280; }
.ins-pages { display: flex; justify-content: center; gap: 1rem; margin-top: 2rem; }

/* ---------------- Article ---------------- */
.ins-progress { position: fixed; left: 0; right: 0; top: 0; z-index: 1200; height: 3px; pointer-events: none; }
.ins-progress span { display: block; height: 100%; width: 100%; transform: scaleX(0); transform-origin: left; background: linear-gradient(90deg, #4FCFFF, #9BC73B, #FDC943, #E57E27); }
.ins-article-hero { padding-bottom: 6.5rem; }
.ins-article-head { max-width: 860px; }
.ins-article-hero h1 { margin: 0 0 .9rem; color: #fff; font-size: clamp(1.9rem, 4vw, 3rem); line-height: 1.12; letter-spacing: -.02em; }
.ins-lede { margin: 0 0 1.5rem; font-size: 1.12rem; line-height: 1.6; color: rgba(226,230,238,.85); }
.ins-byline { display: flex; align-items: center; gap: .8rem; }
.ins-byline strong { display: block; color: #fff; font-size: .95rem; }
.ins-byline span { font-size: .84rem; color: rgba(226,230,238,.72); }
.ins-article-wrap { position: relative; margin-top: -4rem; }
/* Cover: a fixed 16:9 frame that never grows past ~half the screen height */
.ins-cover { margin: 0 auto 2.5rem; width: min(100%, 920px, 50vh * 16 / 9); aspect-ratio: 16 / 9; border-radius: 22px; overflow: hidden; background: #173E6E; box-shadow: 0 40px 80px -40px rgba(10,12,16,.6); }
.ins-cover img { display: block; width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 640px) { .ins-cover { width: 100%; border-radius: 16px; } }
.ins-article-wrap:not(:has(.ins-cover)) { margin-top: 2.5rem; }
.ins-article-grid { display: grid; grid-template-columns: 56px minmax(0, 720px) 260px; justify-content: center; gap: 2.5rem; align-items: start; }
.ins-share-rail { position: sticky; top: calc(var(--nav-height, 76px) + 24px); display: flex; flex-direction: column; align-items: center; gap: .5rem; }
.ins-share-rail span { font-size: .66rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: #9CA3AF; margin-bottom: .2rem; }
.ins-share-rail a, .ins-share-rail button { width: 42px; height: 42px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; border: 1px solid #E5E7EB; background: #fff; color: #374151; cursor: pointer; transition: all .2s; }
.ins-share-rail a:hover, .ins-share-rail button:hover { color: #fff; background: #173E6E; border-color: #173E6E; transform: translateY(-2px); }
.ins-prose { font-size: 1.08rem; line-height: 1.8; color: #2D3340; }
.ins-prose > :first-child { margin-top: 0; }
.ins-prose h2 { margin: 2.2rem 0 .8rem; font-size: 1.55rem; line-height: 1.3; color: #111A2B; scroll-margin-top: calc(var(--nav-height, 76px) + 24px); }
.ins-prose h3 { margin: 1.8rem 0 .6rem; font-size: 1.22rem; color: #111A2B; scroll-margin-top: calc(var(--nav-height, 76px) + 24px); }
.ins-prose p { margin: 0 0 1.2rem; }
.ins-prose a { color: #173E6E; font-weight: 600; text-decoration: underline; text-decoration-color: #9BC73B; text-decoration-thickness: 2px; text-underline-offset: 3px; }
.ins-prose ul, .ins-prose ol { margin: 0 0 1.3rem; padding-left: 1.3rem; }
.ins-prose li { margin-bottom: .45rem; }
.ins-prose li::marker { color: #9BC73B; }
.ins-prose blockquote { margin: 1.6rem 0; padding: 1rem 1.3rem; border-left: 4px solid #F4A21E; border-radius: 0 14px 14px 0; background: #FFF8EC; color: #4B3A1A; font-style: italic; }
.ins-prose img { max-width: 100%; height: auto; border-radius: 16px; }
.ins-prose pre { overflow-x: auto; padding: 1rem 1.2rem; border-radius: 14px; background: #111A2B; color: #E5E7EB; font-size: .9rem; }
.ins-prose table { width: 100%; border-collapse: collapse; margin: 1.4rem 0; font-size: .95rem; }
.ins-prose th, .ins-prose td { padding: .6rem .8rem; border: 1px solid #E5E7EB; text-align: left; }
.ins-prose th { background: #F7F8FA; }
.ins-tags { display: flex; flex-wrap: wrap; gap: .5rem; margin: 2rem 0 1.5rem; }
.ins-tags a { padding: .35rem .8rem; border-radius: 999px; font-size: .82rem; font-weight: 600; color: #374151; background: #F3F4F6; text-decoration: none; }
.ins-tags a:hover { color: #fff; background: #173E6E; }
.ins-helpful { margin: 2rem 0; padding: 1.2rem 1.4rem; border-radius: 18px; background: #F7F8FA; border: 1px solid #E5E7EB; }
.ins-helpful-ask { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }
.ins-helpful-ask strong { font-size: 1rem; color: #111A2B; }
.ins-helpful-q { display: flex; flex-direction: column; gap: .15rem; }
.ins-helpful-q small { font-size: .8rem; color: #6B7280; }
.ins-helpful-ask div { display: flex; gap: .5rem; }
.ins-helpful button { display: inline-flex; align-items: center; gap: .45rem; height: 40px; padding: 0 1rem; border-radius: 999px; border: 1px solid #D1D5DB; background: #fff; font: inherit; font-weight: 700; font-size: .88rem; color: #374151; cursor: pointer; transition: all .2s; }
.ins-helpful button:hover { border-color: #173E6E; color: #173E6E; transform: translateY(-1px); }
.ins-helpful.is-voted .ins-helpful-ask { display: none; }
.ins-helpful-thanks { margin: 0; font-weight: 600; color: #1C7A52; }
.ins-helpful-thanks[hidden] { display: none; }
.ins-author-box { display: flex; gap: 1rem; align-items: flex-start; margin-top: 2rem; padding: 1.4rem; border-radius: 20px; background: #fff; border: 1px solid #E5E7EB; }
.ins-author-box small { font-size: .72rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: #9CA3AF; }
.ins-author-box strong { display: block; font-size: 1.05rem; color: #111A2B; }
.ins-author-box p { margin: .3rem 0 0; font-size: .92rem; line-height: 1.6; color: #4B5563; }
.ins-toc { position: sticky; top: calc(var(--nav-height, 76px) + 24px); padding: 1.1rem 1.1rem 1rem; border-radius: 18px; background: #fff; border: 1px solid #E5E7EB; }
.ins-toc[hidden] { display: none; }
.ins-toc-title { display: block; margin-bottom: .6rem; font-size: .7rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: #9CA3AF; }
.ins-toc ol { list-style: none; margin: 0; padding: 0; counter-reset: toc; display: flex; flex-direction: column; gap: .1rem; }
.ins-toc li { counter-increment: toc; }
.ins-toc li.is-sub { counter-increment: none; }
.ins-toc li a { position: relative; display: flex; gap: .65rem; align-items: flex-start; padding: .4rem .45rem; border-radius: 10px; font-size: .85rem; line-height: 1.4; color: #6B7280; transition: color .2s, background .2s; }
.ins-toc li a::before { content: counter(toc); flex-shrink: 0; width: 22px; height: 22px; margin-top: -1px; border-radius: 50%; display: inline-flex; align-items: center; justify-content: center; font-size: .7rem; font-weight: 800; color: #6B7280; background: #F3F4F6; transition: all .2s; }
.ins-toc li.is-sub a { padding-left: 2.25rem; font-size: .8rem; }
.ins-toc li.is-sub a::before { content: ''; width: 6px; height: 6px; margin: .45rem 0 0; background: #D1D5DB; }
.ins-toc li a:hover { color: #111A2B; background: #F7F8FA; }
.ins-toc li a:hover::before { color: #111A2B; background: #E5E7EB; }
.ins-toc li a.is-active { color: #111A2B; font-weight: 700; background: rgba(155,199,59,.1); }
.ins-toc li a.is-active::before { color: #fff; background: linear-gradient(135deg, #9BC73B, #5C8A1E); }
.ins-toc li.is-sub a.is-active::before { background: #9BC73B; }
.ins-toc-cta { display: flex; gap: .7rem; align-items: center; margin-top: 1rem; padding: .8rem; border-radius: 14px; color: #fff; background: linear-gradient(135deg, #1E8FD0, #16508E); font-size: .8rem; }
.ins-toc-cta i { width: 32px; height: 32px; border-radius: 9px; flex-shrink: 0; display: inline-flex; align-items: center; justify-content: center; color: #FDC943; background: rgba(255,255,255,.1); }
.ins-toc-cta strong { display: block; font-size: .84rem; }
.ins-toc-cta:hover { color: #fff; transform: translateY(-1px); }
.ins-pn { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; max-width: 1080px; margin: 3rem auto 0; }
.ins-pn a { display: flex; flex-direction: column; gap: .3rem; padding: 1.1rem 1.3rem; border-radius: 18px; background: #fff; border: 1px solid #E5E7EB; color: #111A2B; transition: border-color .2s, transform .25s var(--ins-ease); }
.ins-pn a:hover { border-color: #173E6E; transform: translateY(-2px); color: #111A2B; }
.ins-pn small { font-size: .76rem; font-weight: 700; color: #6B7280; }
.ins-pn strong { font-size: .98rem; line-height: 1.4; }
.ins-pn-next { text-align: right; }
.ins-related { margin-top: 3.5rem; padding: 3.5rem 0 4rem; background: #F7F8FA; }
.ins-related-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 1.5rem; }
.ins-related-head h2 { margin: 0; }
.ins-related-head a { font-weight: 700; color: #173E6E; }
.ins-toast { position: fixed; left: 50%; bottom: 28px; z-index: 1500; transform: translate(-50%, 16px); padding: .7rem 1.1rem; border-radius: 999px; font-size: .86rem; font-weight: 600; color: #fff; background: rgba(15,18,24,.95); opacity: 0; transition: opacity .25s, transform .3s var(--ins-ease); }
.ins-toast.is-on { opacity: 1; transform: translate(-50%, 0); }
.ins-toast i { margin-right: .4rem; color: #9BC73B; }

/* ---------------- Responsive ---------------- */
@media (max-width: 1100px) {
    .ins-article-grid { grid-template-columns: 56px minmax(0, 1fr); }
    .ins-toc { display: none !important; }
}
@media (max-width: 991px) {
    .ins-grid { grid-template-columns: repeat(2, 1fr); }
    .ins-featured { grid-template-columns: 1fr; }
    .ins-featured-media { min-height: 240px; }
}
@media (max-width: 700px) {
    .ins-hero, .ins-article-hero { padding-top: 7rem; }
    .ins-grid { grid-template-columns: 1fr; }
    .ins-article-grid { grid-template-columns: 1fr; gap: 1.5rem; }
    .ins-share-rail { position: static; flex-direction: row; justify-content: flex-start; order: 2; }
    .ins-share-rail span { margin: 0 .3rem 0 0; }
    .ins-featured-body { padding: 1.5rem; }
    .ins-pn { grid-template-columns: 1fr; }
    .ins-pn-next { text-align: left; }
    .ins-search input { height: 54px; padding-right: 3.5rem; }
    .ins-kbd { display: none; }
    .ins-clear, .ins-spinner { right: 1rem; }
    .ins-search-icon, .ins-clear, .ins-spinner, .ins-kbd { top: 27px; }
}
@media (prefers-reduced-motion: reduce) {
    .ins-card, .ins-suggest { animation: none; }
    .ins-card, .ins-card-media img, .ins-featured-media img { transition: none; }
}

/* fixes */
.ins-hero { overflow: visible; z-index: 5; }
.ins-hero-glow { overflow: hidden; }
.ins-prose ul { list-style: disc; }
.ins-prose ol { list-style: decimal; }
.ins-prose li { display: list-item; }
.ins-article-grid:has(.ins-toc[hidden]) { grid-template-columns: 56px minmax(0, 760px); }
@media (max-width: 700px) { .ins-article-grid:has(.ins-toc[hidden]) { grid-template-columns: 1fr; } }

/* ==========================================================================
   LISTING v2: featured + most read, sticky filter bar, styled sort
   ========================================================================== */
.ins-hero { padding-bottom: 3rem; }
.ins-body { padding-top: 2.25rem; }

.ins-top { display: grid; grid-template-columns: minmax(0, 1.75fr) minmax(0, 1fr); gap: 1.5rem; margin-bottom: 2.25rem; }
.ins-top[hidden] { display: none; }
.ins-feat { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); border-radius: 22px; overflow: hidden; background: #fff; border: 1px solid #E5E7EB; box-shadow: 0 24px 50px -40px rgba(10,12,16,.55); transition: box-shadow .3s, transform .3s var(--ins-ease); }
.ins-feat:hover { transform: translateY(-3px); box-shadow: 0 30px 56px -34px rgba(10,12,16,.55); }
.ins-feat-media { position: relative; display: block; min-height: 300px; overflow: hidden; background: #F3F4F6; }
.ins-feat-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ins-ease); }
.ins-feat:hover .ins-feat-media img { transform: scale(1.04); }
.ins-feat-badge { position: absolute; left: 14px; top: 14px; display: inline-flex; align-items: center; gap: .35rem; padding: .3rem .7rem; border-radius: 999px; font-size: .72rem; font-weight: 800; color: #111A2B; background: #FDC943; }
.ins-feat-body { display: flex; flex-direction: column; justify-content: center; padding: 1.75rem 1.75rem 1.6rem; }
.ins-meta-cat { padding: .15rem .55rem; border-radius: 999px; font-weight: 700; color: #173E6E; background: #F3F4F6; }
.ins-feat h2 { margin: .8rem 0 .55rem; font-size: clamp(1.2rem, 1.7vw, 1.5rem); line-height: 1.3; letter-spacing: -.01em; }
.ins-feat h2 a { color: #111A2B; }
.ins-feat h2 a:hover { color: #1E75B0; }
.ins-feat p { margin: 0 0 1.1rem; font-size: .93rem; line-height: 1.6; color: #4B5563; display: -webkit-box; -webkit-line-clamp: 4; -webkit-box-orient: vertical; overflow: hidden; }
.ins-link { display: inline-flex; align-items: center; gap: .45rem; font-weight: 700; font-size: .9rem; color: #111A2B; }
.ins-link i { font-size: .75rem; transition: transform .25s var(--ins-ease); }
.ins-feat:hover .ins-link i, .ins-link:hover i { transform: translateX(4px); }

.ins-popular { padding: 1.3rem 1.35rem; border-radius: 22px; color: #fff; background: linear-gradient(150deg, #111A2B 0%, #162033 70%); }
.ins-popular h3 { display: flex; align-items: center; gap: .5rem; margin: 0 0 .9rem; font-size: .95rem; color: #fff; }
.ins-popular h3 i { color: #F4A21E; }
.ins-popular ol { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.ins-popular li + li { border-top: 1px solid rgba(255,255,255,.08); }
.ins-popular a { display: flex; gap: .85rem; align-items: flex-start; padding: .8rem .2rem; color: #fff; transition: transform .25s var(--ins-ease); }
.ins-popular a:hover { transform: translateX(3px); color: #fff; }
.ins-pop-num { font-family: var(--font-heading); font-size: 1.15rem; font-weight: 800; line-height: 1.2; background: linear-gradient(135deg, #4FCFFF, #9BC73B 60%, #FDC943); -webkit-background-clip: text; background-clip: text; color: transparent; }
.ins-pop-text { min-width: 0; display: flex; flex-direction: column; gap: .2rem; }
.ins-pop-text strong { font-size: .88rem; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.ins-pop-text small { font-size: .74rem; color: rgba(226,230,238,.6); }
.ins-popular a:hover strong { text-decoration: underline; text-underline-offset: 3px; }

/* sticky filter bar */
.ins-filters { position: sticky; top: var(--nav-height, 76px); z-index: 20; margin: 0 -1rem 1.25rem; padding: .75rem 1rem; border-radius: 0 0 16px 16px; background: rgba(247,248,250,.92); -webkit-backdrop-filter: saturate(160%) blur(10px); backdrop-filter: saturate(160%) blur(10px); }
html.nav-is-tucked .ins-filters { top: 0; }
.ins-section-head { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.ins-section-head h2 { margin: 0; font-size: 1.3rem; }
.ins-section-title { min-width: 0; flex: 1 1 320px; }
.ins-topic-intro { margin: .35rem 0 0; max-width: 640px; font-size: .95rem; line-height: 1.6; color: #4B5563; animation: insIntroIn .35s ease both; }
@keyframes insIntroIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }
.ins-section-head .ins-result { margin: 0; }

/* styled sort */
.ins-native { position: absolute !important; opacity: 0 !important; pointer-events: none !important; width: 1px; height: 1px; }
.ins-sort { position: relative; }
.ins-sort-label { font-size: .82rem; color: #6B7280; }
.ins-sort-btn { display: inline-flex; align-items: center; gap: .5rem; height: 40px; padding: 0 .8rem 0 .9rem; border-radius: 999px; border: 1px solid #E5E7EB; background: #fff; font: inherit; font-size: .86rem; font-weight: 700; color: #173E6E; cursor: pointer; transition: border-color .2s, box-shadow .2s; }
.ins-sort-btn:hover, .ins-sort-btn.is-open { border-color: #173E6E; }
.ins-sort-btn.is-open { box-shadow: 0 0 0 3px rgba(10,36,68,.08); }
.ins-sort-btn > i:first-child { color: #6B7280; font-size: .8rem; }
.ins-sort-caret { font-size: .62rem; color: #6B7280; transition: transform .25s var(--ins-ease); }
.ins-sort-btn.is-open .ins-sort-caret { transform: rotate(180deg); }
.ins-sort-menu { position: absolute; right: 0; top: calc(100% + 8px); z-index: 40; min-width: 200px; list-style: none; margin: 0; padding: .35rem; border-radius: 14px; background: #fff; border: 1px solid #E5E7EB; box-shadow: 0 24px 48px -20px rgba(10,12,16,.45); animation: insPop .2s var(--ins-ease); }
.ins-sort-menu[hidden] { display: none; }
.ins-sort-menu li { display: flex; align-items: center; gap: .65rem; padding: .6rem .7rem; border-radius: 10px; font-size: .88rem; font-weight: 600; color: #173E6E; cursor: pointer; }
.ins-sort-menu li > i:first-child { width: 26px; height: 26px; border-radius: 8px; display: inline-flex; align-items: center; justify-content: center; font-size: .72rem; color: #4B5563; background: #F3F4F6; }
.ins-sort-menu li:hover, .ins-sort-menu li.is-active { background: #F5F6F8; }
.ins-sort-tick { margin-left: auto; font-size: .72rem; color: #22A06B; opacity: 0; }
.ins-sort-menu li[aria-selected="true"] .ins-sort-tick { opacity: 1; }
.ins-sort-menu li[aria-selected="true"] > i:first-child { color: #fff; background: #173E6E; }

@media (max-width: 1100px) { .ins-top { grid-template-columns: 1fr; } }
@media (max-width: 760px) {
    .ins-feat { grid-template-columns: 1fr; }
    .ins-feat-media { min-height: 0; aspect-ratio: 16 / 9; }
    .ins-feat-media img { position: absolute; }
    .ins-feat-body { padding: 1.25rem; }
    .ins-filters { position: static; margin: 0 0 1rem; padding: 0; background: none; backdrop-filter: none; }
    .ins-sort-label { display: none; }
}
.ins-suggest { max-height: min(62vh, 560px); overflow-y: auto; overscroll-behavior: contain; scrollbar-width: thin; }

/* Admin preview bar (only on /admin-dashboard/blog/<id>/preview/) */
.ins-preview-bar { position: fixed; z-index: 1200; left: 50%; bottom: 20px; transform: translateX(-50%); display: flex; align-items: center; gap: .7rem; max-width: calc(100vw - 24px); padding: .65rem .7rem .65rem 1rem; border-radius: 14px; font-size: .85rem; color: #fff; background: #111A2B; box-shadow: 0 24px 48px -18px rgba(0, 0, 0, .6); }
.ins-preview-bar > i { color: #FDC943; }
.ins-preview-bar a { flex-shrink: 0; padding: .4rem .8rem; border-radius: 9px; font-weight: 700; color: #111A2B; background: #fff; }