/* ===================== Resources: knowledge-hub / docs layout ===================== */
:root { --rs-bg: #f4f6fb; --rs-line: #e1e5f0; }

/* ---- header ---- */
.rs-hero { background: var(--rs-bg); padding: 128px 0 46px; border-bottom: 1px solid var(--rs-line); position: relative; overflow: hidden; }
.rs-hero::after { content: ""; position: absolute; right: -60px; top: 40px; width: 360px; height: 360px; background-image: linear-gradient(var(--rs-line) 1px, transparent 1px), linear-gradient(90deg, var(--rs-line) 1px, transparent 1px); background-size: 36px 36px; mask-image: radial-gradient(circle, #000 20%, transparent 70%); -webkit-mask-image: radial-gradient(circle, #000 20%, transparent 70%); pointer-events: none; }
.rs-hero .container { position: relative; z-index: 1; }
.rs-crumb { margin: 0 0 18px; }
.rs-type { display: inline-flex; gap: 8px; align-items: center; font-size: 12.5px; font-weight: 800; letter-spacing: .11em; text-transform: uppercase; color: var(--cz-red); background: #fff; border: 1px solid #f1c3ca; padding: 6px 14px; border-radius: 6px; }
.rs-title { font-size: clamp(28px, 3.6vw, 44px); line-height: 1.17; margin: 16px 0 12px; color: var(--cz-ink); }
.rs-lead { font-size: 18.5px; max-width: 720px; margin: 0; }
.rs-meta { margin: 0; padding: 18px 20px; background: #fff; border: 1px solid var(--rs-line); border-radius: 14px; }
.rs-meta li { display: flex; gap: 10px; padding: 4px 0; font-weight: 700; font-size: 14px; color: var(--cz-ink-2); }
.rs-meta i { color: var(--cz-red); margin-top: 3px; font-size: 12px; }
.rs-byline { display: flex; flex-wrap: wrap; gap: 8px 24px; margin: 18px 0 0; padding: 0; }
.rs-byline li { font-size: 14px; font-weight: 700; color: #667594; }
.rs-byline i { margin-right: 6px; color: var(--cz-red); }
@media (max-width: 991px) { .rs-hero { padding: 112px 0 36px; } .rs-hero::after { display: none; } .rs-meta { margin-top: 16px; } }

/* ---- 3-column docs grid ---- */
.rs-wrap { background: #fff; padding: 40px 0 70px; }
.rs-grid { display: grid; grid-template-columns: 240px minmax(0, 1fr) 280px; gap: 44px; align-items: start; }
.rs-grid-post { grid-template-columns: minmax(0, 1fr) 300px; }
@media (max-width: 1199px) { .rs-grid { grid-template-columns: 220px minmax(0, 1fr); } .rs-grid .rs-side { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; position: static; } .rs-grid-post { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 991px) { .rs-grid { grid-template-columns: minmax(0, 1fr); } .rs-nav { position: static; display: flex; gap: 8px; overflow-x: auto; padding-bottom: 6px; } .rs-nav h2 { display: none; } .rs-nav ul { display: flex; gap: 8px; } .rs-nav a { white-space: nowrap; border: 1px solid var(--rs-line); } .rs-grid .rs-side { grid-template-columns: 1fr; } }

/* ---- left navigator ---- */
.rs-nav { position: sticky; top: 96px; max-height: calc(100vh - 116px); overflow-y: auto; scrollbar-width: thin; padding-right: 6px; }
.rs-nav h2 { font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase; color: #8a94b0; margin: 22px 0 8px; }
.rs-nav h2:first-child { margin-top: 0; }
.rs-nav ul { margin: 0; padding: 0; }
.rs-nav a { display: flex; gap: 10px; align-items: center; padding: 8px 12px; border-radius: 8px; font-weight: 700; font-size: 14.5px; color: var(--cz-ink-2); border-left: 3px solid transparent; }
.rs-nav a i { color: #aab2c8; width: 16px; text-align: center; font-size: 13px; }
.rs-nav a:hover { background: var(--rs-bg); }
.rs-nav a.on { background: #fff0f2; border-left-color: var(--cz-red); color: var(--cz-red); }
.rs-nav a.on i { color: var(--cz-red); }

/* ---- article ---- */
.rs-article { min-width: 0; }
.rs-sec { margin-bottom: 52px; scroll-margin-top: 110px; }
.rs-sec h2, .rs-prose h2 { font-size: clamp(23px, 2.4vw, 30px); line-height: 1.25; margin: 0 0 14px; padding-bottom: 10px; border-bottom: 2px solid var(--rs-line); position: relative; }
.rs-sec h2::after, .rs-prose h2::after { content: ""; position: absolute; left: 0; bottom: -2px; width: 56px; height: 2px; background: var(--cz-red); }
.rs-sec p, .rs-prose p { font-size: 17px; line-height: 1.8; }
.rs-sec .intro { color: #4d5a78; }
.rs-bul { margin: 12px 0 0; padding: 0; list-style: none; }
.rs-bul li { position: relative; padding: 5px 0 5px 24px; font-size: 16.5px; line-height: 1.65; }
.rs-bul li::before { content: ""; position: absolute; left: 4px; top: 14px; width: 7px; height: 7px; border-radius: 2px; background: var(--cz-red); transform: rotate(45deg); }

/* callouts */
.rs-callout { border-radius: 14px; padding: 20px 22px; margin: 22px 0 0; border: 1px solid; }
.rs-callout b { display: block; margin-bottom: 8px; font-size: 16.5px; color: var(--cz-ink); }
.rs-callout p { margin: 0 0 12px; font-size: 16px; }
.rs-callout.info { background: #eef4ff; border-color: #c9dafb; }
.rs-callout.info li { display: flex; justify-content: space-between; gap: 16px; padding: 7px 0; border-bottom: 1px dashed #b6caf0; font-weight: 700; color: var(--cz-ink-2); }
.rs-callout.info li:last-child { border: 0; }
.rs-callout.info li span { color: #55658a; font-weight: 600; }
.rs-callout.warn { background: #fff8eb; border-color: #f6dba5; }
.rs-callout.tip { background: #fff5f6; border-color: #f4c4cb; }
.rs-callout .flat li { display: flex; gap: 12px; padding: 8px 0; font-weight: 700; color: var(--cz-ink-2); }
.rs-callout .flat i { color: #d98a00; margin-top: 4px; font-size: 13px; }

/* drivers */
.rs-drivers { margin: 0; border: 1px solid var(--rs-line); border-radius: 14px; overflow: hidden; }
.rs-drivers > div { display: grid; grid-template-columns: 30% 1fr; gap: 20px; padding: 16px 20px; border-bottom: 1px solid var(--rs-line); }
.rs-drivers > div:last-child { border: 0; }
.rs-drivers > div:nth-child(even) { background: var(--rs-bg); }
.rs-drivers dt { font-weight: 800; color: var(--cz-ink); display: flex; gap: 10px; }
.rs-drivers dt span { color: var(--cz-red); font-size: 13px; padding-top: 2px; }
.rs-drivers dd { margin: 0; color: #4d5a78; }
@media (max-width: 575px) { .rs-drivers > div { grid-template-columns: 1fr; gap: 4px; } }

/* table */
.rs-table { overflow-x: auto; border: 1px solid var(--rs-line); border-radius: 14px; }
.rs-table table { width: 100%; min-width: 520px; border-collapse: collapse; font-size: 15.5px; }
.rs-table th, .rs-table td { padding: 13px 16px; text-align: left; border-bottom: 1px solid var(--rs-line); vertical-align: top; }
.rs-table thead th { background: var(--cz-ink); color: #fff; font-size: 13.5px; }
.rs-table tbody th { background: var(--rs-bg); width: 24%; color: var(--cz-ink); }
.rs-table tr:last-child th, .rs-table tr:last-child td { border-bottom: 0; }

/* options / steps / features / links */
.rs-opts { display: grid; gap: 12px; }
.rs-opts > div { border: 1px solid var(--rs-line); border-left: 4px solid var(--cz-red); border-radius: 10px; padding: 16px 20px; }
.rs-opts h3 { font-size: 18px; margin: 0 0 4px; }
.rs-opts p { margin: 0 0 6px; font-size: 15.5px; }
.rs-opts em { font-style: normal; font-weight: 800; font-size: 13.5px; color: var(--cz-red); }
.rs-steps { margin: 0; padding: 0; counter-reset: st; }
.rs-steps li { display: flex; gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--rs-line); }
.rs-steps li:last-child { border: 0; }
.rs-steps li > span { flex: 0 0 34px; width: 34px; height: 34px; border-radius: 50%; background: var(--cz-ink); color: #fff; font-weight: 800; display: inline-flex; align-items: center; justify-content: center; }
.rs-steps h3 { font-size: 17.5px; margin: 3px 0 2px; }
.rs-steps p { margin: 0; font-size: 15.5px; }
.rs-feat { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.rs-feat > div { border: 1px solid var(--rs-line); border-radius: 12px; padding: 18px; }
.rs-feat i { color: var(--cz-red); font-size: 20px; margin-bottom: 8px; display: block; }
.rs-feat h3 { font-size: 17px; margin: 0 0 4px; }
.rs-feat p { margin: 0; font-size: 15px; }
@media (max-width: 575px) { .rs-feat { grid-template-columns: 1fr; } }
.rs-links { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.rs-links a { display: flex; align-items: center; gap: 14px; border: 1px solid var(--rs-line); border-radius: 12px; padding: 14px 16px; color: var(--cz-ink); transition: all .2s; }
.rs-links a:hover { border-color: var(--cz-red); box-shadow: 0 10px 22px rgba(220, 15, 47, .08); }
.rs-links a > i:first-child { width: 40px; height: 40px; border-radius: 10px; background: #fff0f2; color: var(--cz-red); display: inline-flex; align-items: center; justify-content: center; flex: 0 0 40px; }
.rs-links span { flex: 1; display: flex; flex-direction: column; line-height: 1.35; }
.rs-links small { color: #667594; font-size: 13.5px; }
.rs-links .go { color: var(--cz-red); font-size: 11px; }
@media (max-width: 575px) { .rs-links { grid-template-columns: 1fr; } }

/* details (faq / use cases) */
.rs-det { border: 1px solid var(--rs-line); border-radius: 12px; margin-bottom: 10px; padding: 0 18px; background: #fff; }
.rs-det[open] { border-color: #f1b8c0; background: #fffafb; }
.rs-det summary { cursor: pointer; padding: 15px 28px 15px 0; font-weight: 800; color: var(--cz-ink); list-style: none; position: relative; font-size: 16.5px; }
.rs-det summary::-webkit-details-marker { display: none; }
.rs-det summary::after { content: "+"; position: absolute; right: 0; top: 50%; transform: translateY(-50%); font-size: 22px; color: var(--cz-red); }
.rs-det[open] summary::after { content: "\2212"; }
.rs-det p { margin: 0 0 14px; font-size: 16px; }

/* ---- assessment ---- */
.rs-quiz { display: grid; grid-template-columns: minmax(0, 1fr); gap: 22px; }
.rs-quiz .q { margin: 0; padding: 0; display: grid; gap: 10px; }
.rs-quiz label { display: flex; gap: 14px; align-items: center; border: 1px solid var(--rs-line); border-radius: 12px; padding: 14px 16px; cursor: pointer; margin: 0; background: #fff; transition: border-color .2s, background .2s; }
.rs-quiz label:hover { border-color: #c4cbe0; }
.rs-quiz .no { flex: 0 0 30px; width: 30px; height: 30px; border-radius: 8px; background: var(--rs-bg); color: #667594; font-weight: 800; font-size: 13px; display: inline-flex; align-items: center; justify-content: center; }
.rs-quiz .txt { flex: 1; font-weight: 700; color: var(--cz-ink-2); line-height: 1.45; }
.rs-quiz input { position: absolute; opacity: 0; pointer-events: none; }
.rs-quiz .sw { flex: 0 0 46px; width: 46px; height: 26px; border-radius: 20px; background: #cfd4e4; position: relative; transition: background .2s; }
.rs-quiz .sw::after { content: ""; position: absolute; left: 3px; top: 3px; width: 20px; height: 20px; border-radius: 50%; background: #fff; transition: transform .2s; box-shadow: 0 2px 4px rgba(0, 0, 0, .2); }
.rs-quiz input:checked ~ .sw { background: var(--cz-red); }
.rs-quiz input:checked ~ .sw::after { transform: translateX(20px); }
.rs-quiz label:has(input:checked) { border-color: #f1b8c0; background: #fffafb; }
.rs-quiz input:focus-visible ~ .sw { outline: 3px solid rgba(220, 15, 47, .35); outline-offset: 2px; }
.rs-score { position: sticky; bottom: 16px; background: var(--cz-ink); color: #fff; border-radius: 16px; padding: 22px 24px; box-shadow: 0 20px 40px rgba(11, 12, 57, .3); }
.rs-score .score { font-size: 14px; opacity: .85; }
.rs-score .meter { height: 8px; border-radius: 5px; background: rgba(255, 255, 255, .18); margin: 10px 0 14px; overflow: hidden; }
.rs-score .meter span { display: block; height: 100%; width: 0; background: var(--cz-red); transition: width .3s, background .2s; }
.rs-score.level-good .meter span { background: #2ecc71; }
.rs-score.level-mid .meter span { background: #f5a623; }
.rs-score .band { color: #fff; font-size: 20px; margin: 0 0 6px; }
.rs-score .text { margin: 0 0 14px; color: rgba(255, 255, 255, .88); font-size: 15.5px; }
.rs-score .nx { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 14px; padding: 0; }
.rs-score .nx a { display: inline-flex; gap: 8px; align-items: center; background: rgba(255, 255, 255, .1); border-radius: 20px; padding: 6px 14px; color: #fff; font-weight: 700; font-size: 13.5px; }
.rs-score .nx i { font-size: 9px; }
.rs-score .btn { width: 100%; justify-content: center; }

/* ---- interactive checklist ---- */
.rs-check .bar { display: flex; align-items: center; gap: 14px; background: var(--rs-bg); border-radius: 10px; padding: 10px 14px; margin-bottom: 12px; font-weight: 800; color: var(--cz-ink-2); font-size: 14px; }
.rs-check .meter { flex: 1; height: 8px; background: #d9deec; border-radius: 5px; overflow: hidden; }
.rs-check .meter i { display: block; height: 100%; width: 0; background: var(--cz-red); border-radius: 5px; transition: width .25s; }
.rs-check .bar button { background: none; border: 0; color: var(--cz-red); font-weight: 800; cursor: pointer; font-size: 13px; }
.rs-check ul { margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px 14px; }
.rs-check label { display: flex; gap: 12px; align-items: flex-start; padding: 11px 14px; border: 1px solid var(--rs-line); border-radius: 10px; cursor: pointer; margin: 0; }
.rs-check input { position: absolute; opacity: 0; pointer-events: none; }
.rs-check .bx { flex: 0 0 22px; width: 22px; height: 22px; border-radius: 6px; border: 2px solid #b9c0d6; color: transparent; display: inline-flex; align-items: center; justify-content: center; font-size: 11px; margin-top: 1px; transition: all .15s; }
.rs-check input:checked ~ .bx { background: var(--cz-red); border-color: var(--cz-red); color: #fff; }
.rs-check input:checked ~ .tx { color: #8a94b0; text-decoration: line-through; }
.rs-check .tx { font-weight: 700; color: var(--cz-ink-2); line-height: 1.45; font-size: 15.5px; }
.rs-check input:focus-visible ~ .bx { outline: 3px solid rgba(220, 15, 47, .35); outline-offset: 2px; }
@media (max-width: 767px) { .rs-check ul { grid-template-columns: 1fr; } }

/* ---- right rail ---- */
.rs-side { position: sticky; top: 96px; display: grid; gap: 18px; }
.rs-toc, .rs-card { border: 1px solid var(--rs-line); border-radius: 14px; padding: 18px 18px 14px; background: #fff; }
.rs-toc h2, .rs-card h2 { font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: #8a94b0; margin: 0 0 10px; }
.rs-toc ul, .rs-card ul { margin: 0; padding: 0; }
.rs-toc a { display: block; padding: 6px 0 6px 12px; border-left: 2px solid var(--rs-line); font-size: 14px; font-weight: 700; color: #4d5a78; line-height: 1.4; }
.rs-toc a:hover { color: var(--cz-red); }
.rs-toc a.on { border-left-color: var(--cz-red); color: var(--cz-red); }
.rs-card a { display: flex; justify-content: space-between; gap: 10px; padding: 8px 0; border-top: 1px solid var(--rs-line); font-weight: 700; font-size: 14.5px; color: var(--cz-ink-2); }
.rs-card li:first-child a { border-top: 0; }
.rs-card a i { color: var(--cz-red); font-size: 10px; margin-top: 6px; }
.rs-card a:hover { color: var(--cz-red); }
.rs-cta { background: var(--cz-ink); color: #fff; border-radius: 14px; padding: 22px; text-align: left; }
.rs-cta > i { font-size: 24px; color: #ff8fa0; }
.rs-cta h2 { color: #fff; font-size: 20px; margin: 10px 0 4px; }
.rs-cta p { color: rgba(255, 255, 255, .8); font-size: 14.5px; }
.rs-cta .btn { width: 100%; justify-content: center; }
.rs-cta .alt { display: block; text-align: center; margin-top: 12px; color: #fff; opacity: .8; font-size: 13.5px; font-weight: 700; }
@media (max-width: 1199px) { .rs-side { display: grid; } }

/* ---- hub ---- */
.rs-search { position: relative; display: block; max-width: 680px; margin: 28px 0 0; }
.rs-search i { position: absolute; left: 20px; top: 50%; transform: translateY(-50%); color: #8a94b0; }
.rs-search input { width: 100%; border: 2px solid var(--rs-line); border-radius: 14px; padding: 17px 20px 17px 52px; font-size: 16px; background: #fff; box-shadow: 0 10px 24px rgba(14, 16, 75, .06); }
.rs-search input:focus { outline: 0; border-color: var(--cz-red); }
.rs-hubbody { background: #fff; padding: 56px 0 30px; }
.rs-group { margin-bottom: 54px; }
.rs-group header { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; }
.rs-group .gi { width: 54px; height: 54px; border-radius: 16px; background: var(--cz-ink); color: #fff; display: inline-flex; align-items: center; justify-content: center; font-size: 21px; flex: 0 0 54px; }
.rs-group h2 { font-size: 26px; margin: 0; }
.rs-group header p { margin: 2px 0 0; color: #667594; }
.rs-group header .all { margin-left: auto; font-weight: 800; color: var(--cz-red); white-space: nowrap; }
.rs-group header .all i { font-size: 10px; margin-left: 4px; }
.rs-hubgrid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.rs-hubgrid.three { grid-template-columns: repeat(3, 1fr); }
.rs-tile { display: flex; align-items: center; gap: 16px; border: 1px solid var(--rs-line); border-radius: 14px; padding: 16px 18px; color: var(--cz-ink); transition: all .2s; background: #fff; }
.rs-tile:hover { border-color: var(--cz-red); box-shadow: 0 14px 28px rgba(220, 15, 47, .1); transform: translateY(-2px); }
.rs-tile .ic { width: 48px; height: 48px; border-radius: 14px; background: #fff0f2; color: var(--cz-red); display: inline-flex; align-items: center; justify-content: center; flex: 0 0 48px; }
.rs-tile .tx { flex: 1; display: flex; flex-direction: column; line-height: 1.35; }
.rs-tile b { font-size: 17px; }
.rs-tile small { color: #667594; font-size: 14px; margin-top: 2px; }
.rs-tile .go { color: var(--cz-red); font-size: 11px; }
.rs-tile[hidden], .rs-post[hidden], [data-group][hidden] { display: none !important; }
@media (max-width: 991px) { .rs-hubgrid, .rs-hubgrid.three { grid-template-columns: 1fr; } }
.rs-faqband { background: var(--rs-bg); padding: 60px 0; }
.rs-faqband h2 { font-size: 26px; margin-bottom: 18px; }
.rs-faqgrid { display: grid; gap: 10px; max-width: 820px; }
.rs-faqgrid details { background: #fff; border: 1px solid var(--rs-line); border-radius: 12px; padding: 0 18px; }
.rs-faqgrid summary { cursor: pointer; padding: 15px 0; font-weight: 800; color: var(--cz-ink); }
.rs-faqgrid p { margin: 0 0 14px; }

/* ---- blog ---- */
.rs-progress { position: fixed; left: 0; right: 0; top: 0; height: 4px; z-index: 200; background: transparent; }
.rs-progress i { display: block; height: 100%; width: 0; background: var(--cz-red); }
.rs-filter { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 28px; }
.rs-filter button { border: 1px solid var(--rs-line); background: #fff; border-radius: 30px; padding: 9px 18px; font-weight: 800; font-size: 14px; color: var(--cz-ink-2); cursor: pointer; transition: all .2s; }
.rs-filter button:hover { border-color: var(--cz-red); }
.rs-filter button.on { background: var(--cz-red); border-color: var(--cz-red); color: #fff; }
.rs-blog { background: #fff; padding: 46px 0 80px; }
.rs-feature { display: block; position: relative; background: linear-gradient(135deg, #0b0c39, #14176c); color: #fff; border-radius: 22px; padding: 40px 44px; margin-bottom: 30px; overflow: hidden; }
.rs-feature::after { content: ""; position: absolute; right: -80px; top: -80px; width: 280px; height: 280px; border-radius: 50%; background: rgba(220, 15, 47, .35); }
.rs-feature .badge { position: relative; z-index: 1; display: inline-block; background: var(--cz-red); font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; padding: 5px 12px; border-radius: 5px; margin-right: 10px; }
.rs-feature .cat { position: relative; z-index: 1; font-size: 13px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: #ff9aaa; }
.rs-feature h2 { position: relative; z-index: 1; color: #fff; font-size: clamp(24px, 3vw, 36px); margin: 14px 0 10px; max-width: 760px; }
.rs-feature p { position: relative; z-index: 1; color: rgba(255, 255, 255, .85); font-size: 17px; max-width: 700px; }
.rs-feature .meta { position: relative; z-index: 1; font-weight: 700; font-size: 14px; opacity: .9; }
.rs-feature .meta i { font-size: 10px; margin-left: 8px; }
.rs-post { display: flex; flex-direction: column; height: 100%; border: 1px solid var(--rs-line); border-radius: 16px; padding: 24px; color: inherit; background: #fff; transition: all .2s; }
.rs-post:hover { border-color: var(--cz-red); transform: translateY(-4px); box-shadow: 0 18px 36px rgba(14, 16, 75, .1); }
.rs-post .cat { font-size: 12px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--cz-red); margin-bottom: 10px; }
.rs-post h2, .rs-post h3 { font-size: 19px; line-height: 1.32; margin: 0 0 10px; }
.rs-post p { font-size: 15px; flex: 1; }
.rs-post .meta { font-size: 13px; font-weight: 700; color: #667594; }
.rs-empty { text-align: center; padding: 30px; color: #667594; font-weight: 700; }
.rs-more { background: var(--rs-bg); padding: 60px 0 70px; }
.rs-more h2 { font-size: 26px; margin-bottom: 22px; }
.rs-prose { max-width: 760px; }
.rs-prose h2 { margin-top: 38px; }
.rs-prose h2:first-child { margin-top: 0; }

.rs-score { top: auto; }