:root{--ink:#13202b;--muted:#64717d;--brand:#0d778c;--brand-dark:#075e6f;--bg:#f5f7f8;--card:#fff;--line:#dce3e7;--accent:#e8f6f9;--warning:#fff7ed;--warning-line:#fed7aa}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:var(--brand-dark);text-decoration:none}a:hover{text-decoration:underline}.container{width:min(1120px,92%);margin:auto}
header{background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10;backdrop-filter:blur(10px)}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0;gap:18px}.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none}.brand:hover{text-decoration:none}
.brand-mark{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:var(--ink);color:#fff;font-size:.72rem;font-weight:900;letter-spacing:.04em;transform:rotate(-3deg)}
.brand-name{font-weight:900;font-size:1.22rem;letter-spacing:-.04em}.brand-name span{color:var(--brand)}.navlinks{display:flex;gap:20px;flex-wrap:wrap;font-size:.95rem;font-weight:650}
.hero{padding:76px 0 58px;background:radial-gradient(circle at 90% 10%,rgba(13,119,140,.12),transparent 30%),linear-gradient(135deg,#edf9fb,#f8fafb 60%)}
.hero-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:36px;align-items:center}.eyebrow{font-size:.78rem;font-weight:900;letter-spacing:.12em;text-transform:uppercase;color:var(--brand)}
h1{font-size:clamp(2.45rem,6vw,4.8rem);line-height:1.01;letter-spacing:-.06em;margin:.35rem 0 1rem}h2{font-size:clamp(1.65rem,3vw,2.35rem);letter-spacing:-.04em;line-height:1.18;margin:.35rem 0 1rem}
p.lead{font-size:1.18rem;color:#445360;max-width:760px;margin-bottom:0}.searchbox{display:flex;background:#fff;border:1px solid var(--line);border-radius:15px;padding:8px;box-shadow:0 10px 28px rgba(15,23,42,.06);margin-top:25px}
.searchbox input{flex:1;border:0;padding:14px;font-size:1rem;outline:0;min-width:0}.searchbox button,.btn{background:var(--brand);color:#fff;border:0;padding:13px 18px;border-radius:10px;font-weight:800;cursor:pointer}
.searchbox button:hover,.btn:hover{background:var(--brand-dark);text-decoration:none}.hero-card,.card,.article,.callout{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:0 8px 28px rgba(15,23,42,.045)}
.hero-card{padding:27px}.hero-card strong{font-size:1.08rem}.hero-card ul{padding-left:20px;margin-bottom:0}.hero-card li{margin:.35rem 0}
section{padding:54px 0}.section-intro{max-width:720px;color:var(--muted);margin-top:-.3rem;margin-bottom:24px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{padding:22px;transition:transform .15s ease,box-shadow .15s ease}.card:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(15,23,42,.075)}
.card h3{margin:.35rem 0 .55rem;font-size:1.14rem}.card p{margin-top:0;color:#46545f}.meta{font-size:.84rem;color:var(--muted)}
.badge{display:inline-block;background:var(--accent);color:var(--brand-dark);padding:5px 9px;border-radius:999px;font-weight:800;font-size:.73rem}
.notice{background:var(--warning);border:1px solid var(--warning-line);border-radius:14px;padding:17px;color:#7c2d12}.money{background:#0b2d39;color:#fff}.money h2{max-width:760px}.money .card{color:var(--ink)}.money .eyebrow{color:#80d9e8}
.article{padding:38px;max-width:860px;margin:44px auto}.article h1{font-size:clamp(2rem,5vw,3.45rem)}.article h2{margin-top:2rem;font-size:1.55rem}
.article .answer{background:#edfbfc;border-left:4px solid var(--brand);padding:17px 19px;border-radius:8px;margin:22px 0}.article .kicker{display:flex;gap:9px;align-items:center;flex-wrap:wrap}
.article ul,.article ol{padding-left:24px}.article li{margin:.45rem 0}.callout{padding:22px;margin:28px 0;background:#f9fbfc}.callout strong{display:block;margin-bottom:.25rem}
.breadcrumb{font-size:.85rem;color:var(--muted);margin-bottom:16px}.breadcrumb a{color:var(--muted)}.safety-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff;padding:17px 0;color:#57646f;font-size:.92rem}
footer{padding:38px 0;border-top:1px solid var(--line);color:var(--muted);font-size:.9rem;background:#fff}.footer-grid{display:flex;justify-content:space-between;gap:20px;align-items:flex-start}.footer-links{white-space:nowrap}
@media(max-width:800px){.hero-grid,.grid{grid-template-columns:1fr}.nav{align-items:center}.navlinks{gap:14px}.hero{padding-top:48px}.article{padding:25px;margin:26px auto}.footer-grid{display:block}.footer-links{margin-top:14px}}
@media(max-width:460px){.brand-mark{width:34px;height:34px}.brand-name{font-size:1.05rem}.navlinks{font-size:.88rem;gap:11px}}


/* BuildingWrench long-form repair guides */
.guide-meta{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 26px}
.guide-pill{background:#f0f5f7;border:1px solid var(--line);padding:7px 11px;border-radius:999px;font-size:.82rem;color:#43515c;font-weight:700}
.guide-pill.green{background:#ecfdf5;border-color:#a7f3d0;color:#065f46}
.toc{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 22px;margin:24px 0}
.toc strong{display:block;margin-bottom:8px}.toc ol{margin:0;padding-left:20px}.toc li{margin:.3rem 0}
.toolbox{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:24px 0}
.toolbox>div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}
.toolbox h3{margin-top:0}.toolbox ul{margin-bottom:0}
.figure{margin:30px 0;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}
.figure svg{width:100%;height:auto;display:block}
.figure figcaption{font-size:.84rem;color:var(--muted);margin-top:10px}
.steps{counter-reset:step}.step{position:relative;padding:0 0 28px 54px}.step:before{counter-increment:step;content:counter(step);position:absolute;left:0;top:0;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:#fff;font-weight:900}
.step h3{margin:0 0 6px}.step p{margin:.2rem 0 .7rem}
.tip{background:#effafc;border-left:4px solid var(--brand);padding:15px 17px;border-radius:8px;margin:18px 0}
.warning{background:#fff7ed;border-left:4px solid #f59e0b;padding:15px 17px;border-radius:8px;margin:18px 0}
.stopbox{background:#fef2f2;border:1px solid #fecaca;border-radius:16px;padding:20px;margin:28px 0;color:#7f1d1d}
.symptom-table{width:100%;border-collapse:collapse;margin:22px 0;background:#fff;border:1px solid var(--line);font-size:.94rem}
.symptom-table th,.symptom-table td{padding:13px 14px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}
.symptom-table th{background:#eef6f8;font-size:.84rem;text-transform:uppercase;letter-spacing:.04em}
.symptom-table tr:last-child td{border-bottom:0}
.checklist{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;margin:24px 0}
.checklist li{margin:.5rem 0}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:10px 0}
.faq summary{font-weight:800;cursor:pointer}
.sourcebox{font-size:.88rem;background:#f8fafb;border:1px solid var(--line);border-radius:14px;padding:18px;margin-top:32px}
.sourcebox ul{margin-bottom:0}
.sourcebox a{word-break:break-word}
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:18px}
.related-card{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:17px;font-weight:800}
@media(max-width:700px){.toolbox,.related-grid{grid-template-columns:1fr}.symptom-table{font-size:.88rem}.symptom-table th,.symptom-table td{padding:10px}}


/* V3 repair library */
.category-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.category-card{display:block;background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;color:var(--ink);box-shadow:0 8px 28px rgba(15,23,42,.045)}.category-card:hover{text-decoration:none;transform:translateY(-2px)}.cat-icon{font-size:1.6rem;display:block;margin-bottom:8px}
.library-controls{display:flex;gap:10px;flex-wrap:wrap;margin:22px 0}.library-controls input{flex:1;min-width:220px;padding:13px;border:1px solid var(--line);border-radius:12px;font-size:1rem}.filter-chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:9px 13px;font-weight:750}.filter-chip.active{background:var(--ink);color:#fff}
.guide-meta{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 26px}.guide-pill{background:#f0f5f7;border:1px solid var(--line);padding:7px 11px;border-radius:999px;font-size:.82rem;font-weight:700}.guide-pill.green{background:#ecfdf5;border-color:#a7f3d0;color:#065f46}.guide-pill.yellow{background:#fffbeb;border-color:#fde68a;color:#92400e}
.toc,.checklist{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 22px;margin:24px 0}.toc strong{display:block;margin-bottom:8px}.toc ol{margin:0;padding-left:20px}
.toolbox{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:24px 0}.toolbox>div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px}.toolbox h3{margin-top:0}
.figure{margin:30px 0;background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}.figure svg{width:100%;height:auto;display:block}.figure figcaption{font-size:.84rem;color:var(--muted);margin-top:10px}
.steps{counter-reset:step}.step{position:relative;padding:0 0 28px 54px}.step:before{counter-increment:step;content:counter(step);position:absolute;left:0;top:0;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:var(--ink);color:#fff;font-weight:900}.step h3{margin:0 0 6px}.step p{margin:.2rem 0}
.tip{background:#effafc;border-left:4px solid var(--brand);padding:15px 17px;border-radius:8px;margin:18px 0}.warning{background:#fff7ed;border-left:4px solid #f59e0b;padding:15px 17px;border-radius:8px;margin:18px 0}
.stopbox{background:#fef2f2;border:1px solid #fecaca;border-radius:16px;padding:20px;margin:28px 0;color:#7f1d1d}
.symptom-table{width:100%;border-collapse:collapse;margin:22px 0;background:#fff;border:1px solid var(--line);font-size:.94rem}.symptom-table th,.symptom-table td{padding:13px 14px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}.symptom-table th{background:#eef6f8;font-size:.84rem;text-transform:uppercase}.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px;margin:10px 0}.faq summary{font-weight:800;cursor:pointer}
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:18px}.related-card{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:17px;font-weight:800}.category-hero{padding:52px 0 30px;background:linear-gradient(135deg,#edf9fb,#f8fafb)}.category-hero h1{font-size:clamp(2.2rem,5vw,3.8rem)}.article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.article .lead{font-size:1.12rem;color:#445360}.article-note{font-size:.9rem;color:var(--muted)}
@media(max-width:800px){.category-grid,.article-list{grid-template-columns:1fr 1fr}}@media(max-width:650px){.category-grid,.article-list,.toolbox,.related-grid{grid-template-columns:1fr}.symptom-table{font-size:.88rem}.symptom-table th,.symptom-table td{padding:10px}}