/* Baseline theme. Structure-only styling meant to be replaced by a site-specific design.
   All colors/typography are tokens on :root. Uses logical properties so RTL works. */
:root {
  --c-primary: #1f3a5f;
  --c-secondary: #3c7a89;
  --c-accent: #e0a458;
  --c-soft: #c9d6df;
  --c-bg: #f7f9fb;
  --c-surface: #ffffff;
  --c-text: #1b2733;
  --c-muted: #5b6b7a;
  --font-body: system-ui, -apple-system, "Segoe UI", "Noto Sans", "Noto Sans JP", "Noto Sans TC", "Noto Sans Arabic", sans-serif;
  --font-head: var(--font-body);
  --radius: 10px;
  --wrap: 1160px;
  --gap: clamp(16px, 3vw, 28px);
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--c-bg); color: var(--c-text); font: 17px/1.7 var(--font-body); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--c-primary); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible { outline: 3px solid var(--c-accent); outline-offset: 2px; }
h1, h2, h3 { font-family: var(--font-head); line-height: 1.25; color: var(--c-text); }
h1 { font-size: clamp(1.9rem, 4.5vw, 2.8rem); margin: .2em 0 .4em; }
h2 { font-size: clamp(1.4rem, 3vw, 1.8rem); margin: 2em 0 .6em; }
h3 { font-size: 1.15rem; margin: 1.4em 0 .4em; }
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 16px; }
.skip-link { position: absolute; inset-inline-start: -999px; top: 8px; background: var(--c-surface); padding: 8px 12px; z-index: 10; }
.skip-link:focus { inset-inline-start: 8px; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* header */
.site-header { background: var(--c-surface); border-bottom: 1px solid var(--c-soft); position: sticky; top: 0; z-index: 5; }
.header-inner { display: flex; align-items: center; gap: 16px; min-height: 64px; flex-wrap: wrap; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--c-text); font-weight: 700; font-size: 1.1rem; }
.nav-toggle { margin-inline-start: auto; display: none; background: none; border: 1px solid var(--c-soft); border-radius: var(--radius); padding: 6px 12px; font: inherit; cursor: pointer; }
.site-nav { margin-inline-start: auto; }
.site-nav ul { list-style: none; display: flex; flex-wrap: wrap; gap: 4px 18px; margin: 0; padding: 0; }
.site-nav a { text-decoration: none; color: var(--c-text); font-size: .95rem; padding: 6px 0; display: inline-block; }
.site-nav a[aria-current="page"] { color: var(--c-primary); box-shadow: inset 0 -2px 0 var(--c-accent); }
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .site-nav { display: none; width: 100%; margin: 0; }
  .nav-open .site-nav { display: block; }
  .site-nav ul { flex-direction: column; padding-bottom: 12px; }
}

/* layout pieces */
main { padding-block: 24px 64px; }
.breadcrumb ol { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; padding: 0; margin: 0 0 12px; font-size: .88rem; color: var(--c-muted); }
.breadcrumb li + li::before { content: "/"; margin-inline-end: 6px; color: var(--c-soft); }
.eyebrow { text-transform: uppercase; letter-spacing: .06em; font-size: .78rem; color: var(--c-secondary); margin: 0; font-weight: 600; }
.lead { font-size: 1.15rem; color: var(--c-muted); max-width: 70ch; }
.meta { font-size: .88rem; color: var(--c-muted); }
.page-head { margin-bottom: 24px; }
.btn, .btn-secondary, button[type="submit"] { display: inline-block; padding: 10px 18px; border-radius: var(--radius); font: inherit; font-weight: 600; text-decoration: none; cursor: pointer; border: 2px solid var(--c-primary); }
.btn, button[type="submit"] { background: var(--c-primary); color: #fff; }
.btn-secondary { background: transparent; color: var(--c-primary); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; }

.hero { display: grid; grid-template-columns: 1.1fr 1fr; gap: var(--gap); align-items: center; padding-block: 16px 24px; }
.hero-points { padding-inline-start: 1.2em; }
.hero-media img { border-radius: var(--radius); }
@media (max-width: 860px) { .hero { grid-template-columns: 1fr; } }

.grid { display: grid; gap: var(--gap); grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
.card { background: var(--c-surface); border: 1px solid var(--c-soft); border-radius: var(--radius); overflow: hidden; display: flex; flex-direction: column; }
.card-body { padding: 16px 18px 18px; }
.card h3 { margin: .3em 0; }
.card h3 a { text-decoration: none; color: var(--c-text); }
.card p { margin: .4em 0; }

.intro-split { display: grid; grid-template-columns: 1.4fr 1fr; gap: var(--gap); align-items: start; }
@media (max-width: 860px) { .intro-split { grid-template-columns: 1fr; } }

/* article */
.prose { max-width: 75ch; }
.prose table { font-size: .95rem; }
.cover img { border-radius: var(--radius); margin-bottom: 24px; }
.figure { margin: 28px 0; }
.figure img { width: 100%; max-height: 560px; object-fit: contain; border: 1px solid var(--c-soft); border-radius: var(--radius); background: #fff; }
.figure figcaption { margin-top: 8px; font-size: .9rem; color: var(--c-muted); }
.article-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 40px; align-items: start; }
.toc { position: sticky; top: 84px; font-size: .9rem; border-inline-start: 3px solid var(--c-soft); padding-inline-start: 14px; }
.toc h2 { font-size: .95rem; margin: 0 0 8px; }
.toc ol { padding-inline-start: 1.1em; margin: 0; }
@media (max-width: 960px) { .article-layout { grid-template-columns: 1fr; } .toc { position: static; } }
.callout { background: var(--c-surface); border-inline-start: 4px solid var(--c-accent); padding: 4px 18px; margin: 1.4em 0; border-radius: 0 var(--radius) var(--radius) 0; }
.related-tool { background: var(--c-surface); border: 1px solid var(--c-soft); border-radius: var(--radius); padding: 8px 22px 22px; margin-top: 40px; }

.table-wrap { overflow-x: auto; margin: 1.2em 0; -webkit-overflow-scrolling: touch; }
table { border-collapse: collapse; width: 100%; background: var(--c-surface); }
th, td { border: 1px solid var(--c-soft); padding: 9px 12px; text-align: start; vertical-align: top; }
th { background: var(--c-bg); font-weight: 600; }
th .sort { all: unset; cursor: pointer; font-weight: 600; }
th[aria-sort="ascending"] .sort::after { content: " ▲"; }
th[aria-sort="descending"] .sort::after { content: " ▼"; }
.table-tools { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; }
.hint { font-size: .85rem; color: var(--c-muted); margin: 0; }

/* tools */
.tool-panel { background: var(--c-surface); border: 1px solid var(--c-soft); border-radius: var(--radius); padding: clamp(16px, 3vw, 28px); margin-bottom: 32px; }
.fields { display: grid; gap: 16px; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
.field label { display: block; font-weight: 600; font-size: .92rem; margin-bottom: 4px; }
.input-unit { display: flex; align-items: center; border: 1px solid var(--c-soft); border-radius: var(--radius); background: #fff; }
.input-unit input { border: 0; flex: 1; min-width: 0; padding: 10px 12px; font: inherit; background: transparent; }
.unit { padding-inline: 10px; color: var(--c-muted); font-size: .9rem; }
select, input[type="search"], .quote-input input { width: 100%; padding: 10px 12px; font: inherit; border: 1px solid var(--c-soft); border-radius: var(--radius); background: #fff; }
.actions { margin-block: 18px; }
.results dl { display: grid; gap: 8px; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); margin: 0; }
.result-row { background: var(--c-bg); border-radius: var(--radius); padding: 12px 14px; }
.result-row dt { font-size: .85rem; color: var(--c-muted); }
.result-row dd { margin: 0; font-size: 1.35rem; font-weight: 700; }
.note { font-size: .85rem; color: var(--c-muted); }
.checklist { list-style: none; padding: 0; }
.checklist li { display: flex; gap: 10px; align-items: flex-start; padding: 8px 0; border-bottom: 1px solid var(--c-soft); }
.checklist input { width: 20px; height: 20px; margin-top: 4px; flex: none; }
.progress { font-weight: 600; }

.faq details { background: var(--c-surface); border: 1px solid var(--c-soft); border-radius: var(--radius); padding: 12px 16px; margin-bottom: 10px; }
.faq summary { cursor: pointer; font-weight: 600; }
.link-list { list-style: none; padding: 0; }
.link-list li { padding: 10px 0; border-bottom: 1px solid var(--c-soft); }
.link-list p { margin: 4px 0 0; color: var(--c-muted); font-size: .95rem; }
.search-results { list-style: none; padding: 0; }
.search-results li { padding: 12px 0; border-bottom: 1px solid var(--c-soft); }
.disclosure { margin-top: 48px; font-size: .95rem; color: var(--c-muted); }

/* footer */
.site-footer { background: var(--c-surface); border-top: 1px solid var(--c-soft); padding-block: 32px; font-size: .92rem; }
.site-footer .wrap { display: grid; gap: 20px; grid-template-columns: 1.2fr 1fr 1fr; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 6px; }
.footer-note, .copyright { grid-column: 1 / -1; color: var(--c-muted); margin: 0; }
@media (max-width: 760px) { .site-footer .wrap { grid-template-columns: 1fr; } }
/* Tracé d’Eau: tactile editorial layout for domestic repair guidance */
:root{--c-primary:#173b45;--c-secondary:#54776f;--c-accent:#c27148;--c-soft:#d9e3dc;--c-bg:#f4f1e8;--c-surface:#fffdf8;--c-text:#1d2e2c;--c-muted:#586965;--font-body:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;--font-head:Georgia,"Times New Roman",serif;--radius:4px;--wrap:1240px;--gap:clamp(18px,3vw,34px)}
body{font-size:16px;line-height:1.72;background:var(--c-bg)}
.site-header{background:rgba(255,253,248,.96);border-bottom:1px solid #cbd5cb;backdrop-filter:blur(10px)}
.header-inner{min-height:76px}.brand{font-family:var(--font-head);font-size:1.3rem;letter-spacing:-.02em}.brand::before{content:"";width:22px;height:22px;border:2px solid var(--c-accent);border-radius:50% 50% 50% 0;transform:rotate(-45deg);display:inline-block;box-shadow:inset 0 0 0 4px var(--c-surface)}
.site-nav ul{gap:4px 22px}.site-nav a{font-size:.9rem}.site-nav a:hover,.card h3 a:hover{color:var(--c-accent)}
main{padding-block:30px 82px}h1,h2,h3{letter-spacing:-.025em}h1{font-size:clamp(2.5rem,5vw,4.8rem);line-height:1.02;max-width:13ch}h2{font-size:clamp(1.8rem,3vw,2.7rem);margin-top:2.2em}.eyebrow{font-size:.72rem;letter-spacing:.16em;color:#a45431;font-weight:750}.lead{font-size:clamp(1.1rem,1.6vw,1.32rem);line-height:1.55;color:#465a54;max-width:50ch}
.hero{grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);gap:clamp(30px,6vw,90px);padding-block:54px 78px;align-items:center}.hero-text{padding-inline-start:clamp(0px,3vw,48px)}.hero-points{padding-inline-start:1.1em;color:#334c47}.hero-points li{padding:.12em 0}.hero-media{position:relative;margin:0}.hero-media img{width:100%;height:clamp(330px,42vw,560px);object-fit:cover;border-radius:2px 72px 2px 2px;box-shadow:18px 18px 0 #d9e3dc}.hero-media figcaption{font-size:.72rem;color:var(--c-muted);margin-top:20px}.btn,.btn-secondary,button[type=submit]{border-radius:2px;padding:11px 17px;font-size:.92rem}.btn{background:var(--c-primary)}.btn-secondary{border-color:#94aaa0}.btn:hover,button[type=submit]:hover{background:#285761}.cta{margin-top:26px}
.home main>section:not(.hero){margin-block:52px}.grid{gap:22px}.grid.cats{grid-template-columns:repeat(3,minmax(0,1fr))}.card{border:0;border-radius:2px;background:var(--c-surface);box-shadow:0 2px 12px #233c3010;transition:transform .18s ease,box-shadow .18s ease}.card:hover{transform:translateY(-3px);box-shadow:0 12px 28px #233c3018}.card-media{display:block;overflow:hidden;background:#d9e3dc}.card-media img{width:100%;height:205px;object-fit:cover;transition:transform .4s ease}.card:hover .card-media img{transform:scale(1.025)}.card-body{padding:18px 20px 22px}.card h3{font-family:var(--font-head);font-size:1.35rem}.card p{font-size:.95rem}.meta{font-size:.78rem!important;letter-spacing:.04em;text-transform:uppercase;color:#687a72}.grid.guides{grid-template-columns:repeat(3,minmax(0,1fr))}
.home h2{display:flex;align-items:baseline;gap:14px}.home h2::after{content:"";height:1px;flex:1;background:#cad5cb}.home section[aria-labelledby=tools-h]{background:#173b45;color:#fffdf8;padding:34px clamp(20px,4vw,52px)}.home section[aria-labelledby=tools-h] h2{color:#fffdf8;margin-top:0}.home section[aria-labelledby=tools-h] h2::after{background:#54776f}.home .tools .card{background:#214b53;color:#fff}.home .tools .card h3 a{color:#fff}.home .tools .card p{color:#d9e3dc}.home .tools .card-media img{height:155px}
.page-head{padding-block:16px 18px;border-bottom:1px solid var(--c-soft);margin-bottom:34px}.breadcrumb{font-size:.82rem}.article-layout{gap:48px}.prose{max-width:76ch;font-size:1.04rem}.prose h2{margin-top:1.8em}.prose table{font-size:.9rem}.cover img{width:100%;max-height:440px;object-fit:cover;border-radius:2px}.tool-panel{border:1px solid #d4ddd5;border-radius:2px;box-shadow:0 12px 38px #233c3010}.input-unit,select,.quote-input input{border-radius:2px}.result-row{border-radius:2px}.checklist li{border-bottom:1px solid #d9e3dc}
.site-footer{background:#173b45;color:#f4f1e8;border:0;padding-block:46px}.site-footer a{color:#e3ede5}.site-footer .wrap{gap:30px}.footer-note,.copyright{color:#ccdad3}
@media(max-width:860px){.hero{grid-template-columns:1fr;padding-block:34px 50px;gap:28px}.hero-text{padding-inline:0}.hero-media img{height:clamp(280px,68vw,430px)}.grid.cats,.grid.guides{grid-template-columns:repeat(2,minmax(0,1fr))}.home main>section:not(.hero){margin-block:38px}}
@media(max-width:560px){body{font-size:15.5px}.wrap{padding-inline:18px}main{padding-block:16px 54px}.hero{padding-block:24px 38px}h1{font-size:clamp(2.45rem,12vw,3.5rem)}h2{font-size:1.85rem;margin-top:1.8em}.hero-media img{height:280px;border-radius:2px 42px 2px 2px;box-shadow:10px 10px 0 #d9e3dc}.grid.cats,.grid.guides,.grid.tools{grid-template-columns:1fr}.card-media img{height:220px}.site-header{position:relative}.header-inner{min-height:66px}.site-footer .wrap{grid-template-columns:1fr}.tool-panel{padding:18px 14px}.fields,.results dl{grid-template-columns:1fr}.input-unit input{padding-inline:9px}.table-wrap table{min-width:600px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important}}