/* =========================================================
   LEX — Reusable content components (Volume 23 registry subset)
   ========================================================= */

/* ---------- Category tabs (filter) ---------- */
.tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:32px}
.tabs button{padding:11px 18px;border-radius:30px;border:1px solid var(--line);background:#fff;font-weight:700;font-size:14px;transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),background var(--dur) var(--ease)}
.tabs button:hover{border-color:var(--orange);color:var(--orange)}
.tabs button.is-active{background:var(--coal);color:#fff;border-color:var(--coal)}

/* ---------- Problem / Direction cards (Homepage style) ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.card .num{color:var(--orange);font-weight:900;font-size:12.5px;letter-spacing:.05em}
.card h3{margin:8px 0 6px;font-size:19px}
.card p{color:#555;font-size:15px}

/* ---------- Product Family Card (COMP-054) ---------- */
.family-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;display:flex;flex-direction:column;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.family-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:transparent}
.family-card__media{aspect-ratio:4/3;background:linear-gradient(135deg,#e9e9e6,#f5f5f2);display:grid;place-items:center;color:var(--muted);font-size:13px;font-weight:700;position:relative}
.family-card__media .tag{position:absolute;top:14px;left:14px;background:var(--yellow);color:var(--ink);font-size:11.5px;font-weight:800;padding:4px 10px;border-radius:20px;text-transform:uppercase;letter-spacing:.04em}
.family-card__body{padding:22px 22px 26px;display:flex;flex-direction:column;gap:10px;flex:1}
.family-card__body h3{font-size:20px}
.family-card__body p{color:#555;font-size:15px;flex:1}
.family-card__meta{display:flex;flex-wrap:wrap;gap:8px}
.chip{background:var(--paper);border:1px solid var(--line);border-radius:20px;padding:5px 12px;font-size:12.5px;font-weight:700;color:var(--graphite)}
.family-card__footer{display:flex;justify-content:space-between;align-items:center;margin-top:6px}
.family-card__footer .link-more{font-weight:800;font-size:14px;color:var(--orange);display:inline-flex;align-items:center;gap:6px;transition:gap var(--dur) var(--ease)}
.family-card__footer .link-more:hover{gap:10px}

/* ---------- Product Model Card (COMP-055) ---------- */
.model-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px;display:grid;grid-template-columns:120px 1fr auto;gap:18px;align-items:center;transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease)}
.model-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.model-card__thumb{width:120px;height:90px;border-radius:10px;background:var(--paper);display:grid;place-items:center;color:var(--muted);font-size:12px;font-weight:700}
.model-card h4{font-size:17px;margin-bottom:4px}
.model-card__specs{display:flex;gap:16px;flex-wrap:wrap;margin-top:8px}
.model-card__specs div{font-size:13px;color:var(--muted)}
.model-card__specs strong{display:block;color:var(--ink);font-size:15px}
@media (max-width:700px){.model-card{grid-template-columns:1fr;text-align:left}.model-card__thumb{width:100%;height:140px}}

/* ---------- Product Specification Card (COMP-057) / table ---------- */
.spec-table{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r);background:#fff}
.spec-table table{min-width:640px}
.spec-table th,.spec-table td{padding:14px 18px;border-bottom:1px solid var(--line);text-align:left;font-size:14.5px}
.spec-table th{background:var(--coal);color:#fff;font-weight:700;position:sticky;top:0}
.spec-table tr:last-child td{border-bottom:none}
.spec-table td:first-child{font-weight:700;color:var(--graphite);white-space:nowrap}

/* ---------- Decision / checklist card ---------- */
.decision-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;color:var(--ink);transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.decision-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:transparent}
.decision-card h3{font-size:18px;margin-bottom:10px;display:flex;align-items:center;gap:10px;color:var(--ink)}
.decision-card h3 .badge{width:32px;height:32px;border-radius:50%;background:var(--paper);display:grid;place-items:center;font-size:14px;font-weight:900;color:var(--orange);flex-shrink:0}
.decision-card ul{display:flex;flex-direction:column;gap:8px}
.decision-card li{position:relative;padding-left:20px;font-size:14.5px;color:#444}
.decision-card li::before{content:"";position:absolute;left:0;top:8px;width:7px;height:7px;border-radius:50%;background:var(--orange)}

/* ---------- Compare bar (sticky, appears when selecting models) ---------- */
.compare-bar{position:fixed;left:0;right:0;bottom:0;background:var(--coal);color:#fff;padding:14px 0;transform:translateY(100%);transition:transform .25s var(--ease);z-index:80}
.compare-bar.is-visible{transform:translateY(0)}
.compare-bar .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.compare-bar__list{display:flex;gap:10px;flex-wrap:wrap;font-size:13.5px}
.compare-bar__list span{background:rgba(255,255,255,.1);padding:6px 12px;border-radius:20px}

/* ---------- Related / CTA band ---------- */
.cta-band{background:linear-gradient(135deg,var(--coal) 0%,#3a3d40 100%);color:#fff;border-radius:var(--r-lg);padding:44px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;box-shadow:var(--shadow-md)}
.cta-band h3{font-size:26px;max-width:520px}
.cta-band p{color:#cfcfcf;margin-top:8px}
.cta-band__actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- Related content cards ---------- */
.related-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px;display:flex;flex-direction:column;gap:8px;color:var(--ink);transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease)}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:transparent}
.related-card .tag{font-size:11.5px;font-weight:800;text-transform:uppercase;letter-spacing:.05em;color:var(--orange)}
.related-card h4{font-size:16.5px;color:var(--ink)}
.related-card a,.related-card>span:last-child{font-weight:800;font-size:13.5px;color:var(--ink);transition:color var(--dur) var(--ease)}
.related-card:hover a,.related-card:hover>span:last-child{color:var(--orange)}

/* ---------- Section TOC (sidebar) ---------- */
.toc{position:sticky;top:calc(var(--header-h) + 24px);background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px;align-self:start}
.toc strong{display:block;margin-bottom:8px;font-size:13px;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}
.toc a{display:block;padding:7px 8px;border-radius:7px;color:#555;font-size:14.5px;transition:background var(--dur) var(--ease),color var(--dur) var(--ease),padding-left var(--dur) var(--ease)}
.toc a:hover,.toc a.is-active{background:var(--paper);color:var(--orange);padding-left:12px}

/* ---------- Rules / not-do list ---------- */
.rule-list{display:flex;flex-direction:column;gap:10px}
.rule-list .item{background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px 18px;font-size:14.5px;color:#444;display:flex;gap:12px}
.rule-list .item::before{content:"✕";color:#c0392b;font-weight:900;flex-shrink:0}

/* ---------- Badges ---------- */
.badge-row{display:flex;gap:8px;flex-wrap:wrap}
.badge-row .chip.on{background:var(--ink);color:#fff;border-color:var(--ink)}

/* =========================================================
   Article Detail Page (Knowledge Center — COMP-037/070/071/073)
   ========================================================= */
.article-hero{padding:32px 0 8px}
.article-hero h1{max-width:820px;margin:14px 0 18px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;color:var(--muted);font-size:13.5px}
.article-meta .chip{background:var(--paper)}
.article-layout{display:grid;grid-template-columns:220px 1fr;gap:40px;align-items:start}
@media (max-width:900px){.article-layout{grid-template-columns:1fr}.article-layout .toc{display:none}}

.article-body{max-width:720px}
.article-body .lead{margin-bottom:8px}
.article-body h2{font-size:26px;margin-top:44px;margin-bottom:14px;scroll-margin-top:calc(var(--header-h) + 16px)}
.article-body h3{font-size:19px;margin-top:26px;margin-bottom:10px}
.article-body p{margin-bottom:16px;color:#333}
.article-body ul,.article-body ol{margin:0 0 16px;padding-left:22px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:8px;color:#333}
.article-body .spec-table{margin:8px 0 24px}
.article-body .callout{margin:24px 0}

.key-takeaways{background:var(--paper);border-radius:var(--r);padding:22px 24px;margin:32px 0}
.key-takeaways h3{margin-bottom:12px;font-size:16px}
.key-takeaways ul{margin:0;padding-left:20px;list-style:disc}
.key-takeaways li{margin-bottom:8px;font-size:14.5px}

.byline{display:flex;align-items:center;gap:14px;margin-top:36px;padding-top:24px;border-top:1px solid var(--line)}
.byline .avatar{width:46px;height:46px;border-radius:50%;background:var(--paper);display:grid;place-items:center;font-weight:800;color:var(--graphite);flex-shrink:0}
.byline strong{display:block;font-size:14.5px}
.byline span{font-size:13px;color:var(--muted)}

.checklist-group{margin-bottom:8px}
.checklist{display:flex;flex-direction:column;gap:10px;margin:0 0 16px}
.checklist .item{display:flex;gap:12px;align-items:flex-start;background:#fff;border:1px solid var(--line);border-radius:10px;padding:14px 16px;font-size:14.5px;color:#333}
.checklist .item::before{content:"";flex-shrink:0;width:18px;height:18px;margin-top:2px;border:2px solid var(--orange);border-radius:5px}