/* 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; } }

/* Conta em Watts — a household field notebook, not a supplier storefront. */
:root{--c-primary:#153f35;--c-secondary:#386450;--c-accent:#f3d34a;--c-soft:#d9e2d8;--c-bg:#f6f4eb;--c-surface:#fffef9;--c-text:#1c3029;--c-muted:#516258;--radius:2px;--wrap:1240px;--font-body:"Segoe UI",Arial,sans-serif;--font-head:Georgia,"Times New Roman",serif;--gap:26px}
html{scroll-behavior:smooth;scroll-padding-top:110px}body{font-size:17px;line-height:1.75}::selection{background:var(--c-accent);color:var(--c-text)}
.wrap{padding-inline:32px}h1,h2,h3{font-weight:500;letter-spacing:-.035em}h1{font-size:clamp(2.2rem,5vw,4.1rem);line-height:1.08;max-width:22ch}h2{font-size:clamp(1.7rem,3vw,2.4rem)}h3{font-size:1.5rem}
a{color:var(--c-primary)}a:hover{text-decoration-thickness:2px}button,a,input,summary{touch-action:manipulation}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid #916600;outline-offset:4px}
.site-header{position:relative;border-block-end:1px solid #becabe;background:var(--c-bg)}.header-inner{min-height:94px;gap:24px}.brand{font-family:var(--font-body);font-size:1.22rem;letter-spacing:-.04em;font-weight:800;white-space:nowrap}.brand img{width:40px;height:40px}.site-nav ul{gap:9px 20px}.site-nav a{font-size:.88rem;font-weight:600;padding-block:14px}.site-nav a[aria-current]{color:var(--c-primary);box-shadow:inset 0 -3px var(--c-primary)}
main{padding-block:30px 80px}.home main{padding-block-start:26px}.hero{background:var(--c-primary);color:var(--c-surface);grid-template-columns:1.05fr 1fr;padding:0;gap:0;min-height:560px;position:relative;margin-block-end:28px}.hero-text{padding:46px 42px}.hero h1{color:var(--c-surface);font-size:clamp(2.7rem,4.7vw,4.3rem);max-width:12ch;margin-block:24px}.hero .eyebrow{color:var(--c-accent);letter-spacing:.13em;font-size:.69rem;line-height:1.6}.hero .lead{color:#e1e9df;font-size:1.03rem;max-width:42ch}.hero-points{list-style:none;padding:0;font-size:.84rem;color:#e1e9df;margin-block:22px}.hero-points li{padding-block:5px;border-block-end:1px solid #4c6b5f}.hero-points li::before{content:"+";color:var(--c-accent);margin-inline-end:12px}.hero-media{margin:0;position:relative;height:100%;min-height:560px;align-self:stretch}.hero-media img{width:100%;height:100%;min-height:560px;object-fit:cover;border-radius:0;position:absolute;inset:0}.hero-media figcaption{position:absolute;inset-block-end:14px;inset-inline:16px;font-size:.67rem;background:var(--c-surface);color:var(--c-text);padding:4px 10px;width:fit-content}.hero .cta{gap:12px;margin-block:28px 0}.hero .btn{background:var(--c-accent);border-color:var(--c-accent);color:var(--c-primary)}.hero .btn-secondary{color:var(--c-surface);border-color:#b3c8ba}.hero .btn,.hero .btn-secondary{font-size:.8rem;padding:10px 13px}
.reading-path{display:grid;grid-template-columns:repeat(3,1fr);border-block:1px solid #aabcae;margin-block:0 65px}.reading-path a{padding:22px 18px;display:flex;align-items:center;gap:14px;text-decoration:none;font-size:.9rem;font-weight:600}.reading-path a+a{border-inline-start:1px solid #aabcae}.reading-path span{font-size:.72rem;border:1px solid var(--c-primary);padding:3px 7px;font-variant-numeric:tabular-nums}.reading-path a:hover{background:#ecefe3}
.home main>section{margin-block-end:64px}.home main>section.hero{margin-block-end:26px}.home main>section.reading-path{margin-block-end:64px}.home main>section>h2{padding-block-end:16px;border-block-end:2px solid var(--c-primary);margin-block:0 24px}.eyebrow{font-family:var(--font-body);letter-spacing:.11em;text-transform:uppercase;font-weight:700;font-size:.69rem;color:var(--c-secondary)}
.card{border:0;background:transparent;border-radius:0}.card-media{overflow:hidden;background:#e5e8da}.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .25s ease}.card:hover .card-media img{transform:scale(1.025)}.card-body{padding:20px 0 22px}.card h3{font-size:1.6rem;line-height:1.2}.card p{font-size:.94rem}.card .meta{font-size:.74rem;color:var(--c-muted);font-family:var(--font-body)}
.cats{grid-template-columns:1fr;gap:0;counter-reset:topics}.cat-card{display:grid;grid-template-columns:190px 1fr;gap:28px;padding-block:22px;border-block-end:1px solid #bbcabc;counter-increment:topics}.cat-card .card-body{position:relative;padding:6px 60px 0 0}.cat-card h3{font-size:2rem;margin-block:0 10px}.cat-card .card-body::after{content:"0" counter(topics);position:absolute;inset-inline-end:0;inset-block-start:0;font-size:1rem;color:var(--c-secondary);font-family:var(--font-body);font-weight:700}.cat-card .card-media img{aspect-ratio:4/3}.cat-card p{max-width:68ch}.cat-card .meta{margin-block-start:10px}
.guides{grid-template-columns:repeat(2,minmax(0,1fr));gap:34px}.guide-card{border-block-end:1px solid #bdcbbf}.home .guides .guide-card:first-child{grid-column:1/-1;display:grid;grid-template-columns:1.1fr 1fr;gap:32px;background:#e9ecdf;border:0}.home .guides .guide-card:first-child .card-body{padding:30px 30px 24px 0}.home .guides .guide-card:first-child .card-media img{height:100%;aspect-ratio:16/10}.home .guides .guide-card:first-child h3{font-size:2.2rem}
.tools{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.tool-card{background:#e9ecdf;display:grid;grid-template-columns:130px 1fr;gap:20px}.tool-card .card-media img{height:100%;aspect-ratio:3/4}.tool-card .card-body{padding:22px 22px 22px 0}.tool-card h3{font-family:var(--font-body);font-size:1.1rem;font-weight:700;letter-spacing:-.025em}.tool-card p{font-size:.86rem}
.page-head{margin-block:20px 38px;max-width:1000px}.page-head .lead{max-width:66ch;font-size:1.12rem}.breadcrumb{font-size:.8rem}.breadcrumb a{color:var(--c-muted)}.breadcrumb li+li::before{color:#647c69}.meta{font-size:.8rem}.intro-split{padding-block:12px 35px;border-block-end:1px solid var(--c-soft)}figure{margin-inline:0}figcaption{font-size:.75rem;color:var(--c-muted);line-height:1.5;padding-block:8px}.intro-split img{aspect-ratio:4/3;object-fit:cover;width:100%}
.article .page-head{max-width:950px}.article .page-head h1{max-width:24ch;font-size:clamp(2.3rem,4.7vw,3.8rem)}.cover{max-width:900px;margin-block:20px 44px}.cover img{width:100%;max-height:440px;object-fit:cover;margin:0;border-radius:0}.article-layout{grid-template-columns:230px minmax(0,1fr);gap:55px}.prose{max-width:72ch;font-size:1.03rem;overflow-wrap:break-word}.prose h2{font-size:2rem;margin-block:1.7em .65em;scroll-margin-top:24px}.prose h3{font-family:var(--font-body);font-weight:700;font-size:1.1rem;letter-spacing:-.015em}.prose p{margin-block:0 1.2em}.toc{position:sticky;inset-block-start:22px;border-inline-start:2px solid var(--c-primary);padding:5px 0 5px 18px;line-height:1.6}.toc h2{font-family:var(--font-body);font-size:.7rem;font-weight:800;text-transform:uppercase;letter-spacing:.1em}.toc ol{padding-inline-start:18px;font-size:.8rem}.toc li{padding-block:5px}.related-tool{background:var(--c-primary);color:var(--c-surface);padding:28px 34px;border:0}.related-tool h2{color:var(--c-surface);margin-block:0 14px}.related-tool .btn{background:var(--c-accent);color:var(--c-primary);border:0}
.btn,.btn-secondary,button[type=submit]{border-radius:0;font-size:.9rem;font-weight:700;padding:12px 20px}.btn:hover,button[type=submit]:hover{background:#285f4e}.btn-secondary:hover{background:#e5eadb}.hero .btn:hover{background:#ffe477}.hero .btn-secondary:hover{background:#285f4e}.tool-panel{border:0;border-block-start:5px solid var(--c-primary);padding:32px;background:var(--c-surface);box-shadow:0 2px 0 #d9e2d8}.fields{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;margin-block:24px}.field input{width:100%;min-width:0;font:inherit;font-size:1.14rem;padding:12px 14px;border:1px solid #758d7e;border-radius:0;background:var(--c-surface);color:var(--c-text);font-variant-numeric:tabular-nums}.field label{font-size:.85rem;font-weight:650}.scenario-label{font-size:.78rem;text-transform:uppercase;letter-spacing:.08em;font-weight:700}.energy-tool .results{border-block-start:1px solid var(--c-soft);padding-block-start:4px;margin-block-start:30px}.energy-tool .results h2{font-size:1.6rem;margin-block:20px}.results dl{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}.result-row{border-inline-start:3px solid var(--c-primary);background:#edf0e5;padding:16px 18px}.result-row dd{font-size:1.8rem;font-weight:650;letter-spacing:-.04em;font-variant-numeric:tabular-nums}.tool-error{color:#942e20;font-weight:600}.energy-conclusion{font-weight:700}.results>p{font-size:.88rem}.results>p:last-child{color:var(--c-muted);font-weight:400}.progress{background:#edf0e5;padding:14px 18px}.checklist li{padding-block:14px}.checklist input{accent-color:var(--c-primary);width:24px;height:24px}
table{font-size:.94rem}th{background:var(--c-primary);color:var(--c-surface);font-size:.8rem;letter-spacing:.015em}td,th{border-color:#bfccbf;padding:15px 18px}tbody tr:nth-child(even){background:#eff1e7}.table-wrap{border:1px solid #bfccbf}.prose .table-wrap{max-width:100%}.prose table{font-size:.88rem}.table-tools input{max-width:400px}.hint{flex-basis:100%}.faq details{border:0;border-block-end:1px solid #bdcbbf;background:transparent;padding:20px 0;margin:0}.faq summary{font-weight:600;padding-inline-end:15px}.faq details>div{max-width:78ch}.faq details[open] summary{margin-block-end:12px}.link-list li{padding-block:20px}.link-list a{font-size:1.1rem;font-weight:650}.search-form input{padding:16px;font-size:1.1rem;border-color:var(--c-primary)}.disclosure{border-block-start:1px solid #bdcbbf;padding-block-start:20px}.disclosure h2{font-size:1.5rem}
.site-footer{background:#153f35;color:#e1e9df;padding-block:50px;font-size:.85rem;border:0}.site-footer .wrap{grid-template-columns:1.1fr 1fr 1fr;gap:38px}.site-footer a{color:#e1e9df}.footer-brand strong{font-size:1.4rem;color:var(--c-accent);letter-spacing:-.04em}.footer-brand p{max-width:25ch}.footer-note,.copyright{color:#d2dfd2;font-size:.75rem}.footer-note{padding-block-start:24px;border-block-start:1px solid #4c6b5f}.site-footer li{margin-block-end:11px}.nav-toggle{border-color:var(--c-primary);font-size:.8rem;padding:9px 13px;color:var(--c-primary)}
@media(min-width:1500px){.hero{min-height:620px}.hero-media,.hero-media img{min-height:620px}}
@media(max-width:1000px){.header-inner{gap:12px}.site-nav ul{gap:8px 13px}.site-nav a{font-size:.8rem}.hero-text{padding:34px 28px}.hero-media,.hero-media img{min-height:540px}.article-layout{gap:32px;grid-template-columns:200px minmax(0,1fr)}}
@media(max-width:860px){.wrap{padding-inline:24px}.header-inner{min-height:78px}.site-nav a{font-size:.96rem;padding-block:10px}.hero{grid-template-columns:1fr}.hero-text{padding:36px}.hero h1{max-width:16ch;font-size:3.2rem}.hero-media{height:350px;min-height:0}.hero-media img{min-height:0;position:static;height:350px;object-position:center 48%}.hero .lead{max-width:56ch}.reading-path{margin-block-end:40px}.reading-path a{padding:18px 8px;font-size:.8rem;gap:8px}.home main>section{margin-block-end:45px}.article-layout{grid-template-columns:1fr}.toc{position:static;max-width:650px}.toc ol{columns:2;column-gap:30px}.tools{gap:18px}.tool-card{grid-template-columns:90px 1fr;gap:14px}.tool-card .card-body{padding:18px 18px 18px 0}.tool-card p{line-height:1.55}.home .guides .guide-card:first-child h3{font-size:1.8rem}}
@media(max-width:600px){body{font-size:16px;line-height:1.7}.wrap{padding-inline:18px}main{padding-block-start:22px}.brand{font-size:1.13rem}.brand img{width:34px;height:34px}.hero-text{padding:30px 24px}.hero h1{font-size:2.8rem;max-width:12ch;margin-block:20px}.hero .eyebrow{font-size:.64rem}.hero .lead{font-size:1rem}.hero .cta{display:grid}.hero .cta a{text-align:center;padding:13px 8px}.hero-media,.hero-media img{height:260px}.hero-media img{aspect-ratio:4/3}.reading-path{grid-template-columns:1fr}.reading-path a{padding:15px 8px;font-size:.9rem}.reading-path a+a{border-inline-start:0;border-block-start:1px solid #bdcbbf}.home main>section>h2{font-size:1.8rem}.cat-card{grid-template-columns:85px minmax(0,1fr);gap:16px;padding-block:20px}.cat-card .card-media img{aspect-ratio:3/4;height:100%;max-height:145px}.cat-card h3{font-size:1.5rem}.cat-card .card-body{padding:0}.cat-card .card-body::after{display:none}.cat-card p{font-size:.83rem;line-height:1.6}.guides,.tools{grid-template-columns:1fr;gap:26px}.home .guides .guide-card:first-child{display:flex;gap:0}.home .guides .guide-card:first-child .card-body{padding:24px}.home .guides .guide-card:first-child h3{font-size:1.9rem}.guide-card h3{font-size:1.6rem}.tool-card{grid-template-columns:105px minmax(0,1fr)}.tool-card .card-media img{min-height:155px}.tool-card .card-body{padding:20px 18px 20px 0}.page-head{margin-block:16px 28px}.page-head h1,.article .page-head h1{font-size:2.35rem}.page-head .lead{font-size:1.02rem}.prose{font-size:1rem}.prose h2{font-size:1.75rem}.toc ol{columns:1}.cover{margin-block-end:30px}.cover img{aspect-ratio:4/3}.tool-panel{padding:22px 18px}.fields{grid-template-columns:1fr;gap:20px}.energy-tool button{width:100%}.results dl{grid-template-columns:1fr}.result-row dd{font-size:1.8rem}.scenario-label{font-size:.68rem}.related-tool{padding:25px}.site-footer .wrap{grid-template-columns:1fr;gap:24px}.site-footer{padding-block:36px}.table-wrap table{min-width:500px}.prose .table-wrap table{min-width:440px}.intro-split{gap:16px}.breadcrumb ol{font-size:.73rem}.skip-link{font-size:.8rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important}}

/* Conta em Watts: a photographic household energy workbook. */
.hero-text,.energy-gallery,.energy-gallery-pair{min-inline-size:0}
.hero{grid-template-columns:1fr 1.08fr;align-items:stretch;min-height:0;overflow:hidden}
.hero-text{padding:clamp(30px,3.4vw,46px)}.hero h1{font-size:clamp(2.8rem,4.4vw,4.1rem);max-width:13ch}.hero .lead{font-size:1rem}.hero .eyebrow{max-width:40ch}
.energy-gallery{display:flex;flex-direction:column;background:#e2e8d9;padding:16px;gap:14px}
.energy-gallery .hero-media{flex:1;min-height:340px;height:auto;position:relative}
.energy-gallery .hero-media img{min-height:0;position:absolute;inset:0;height:100%;width:100%;object-fit:cover;aspect-ratio:auto}
.energy-gallery .hero-media figcaption{inset-block-end:10px;inset-inline:10px;padding:4px 8px;font-size:.61rem;max-width:calc(100% - 20px)}
.energy-gallery-pair{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.energy-gallery-pair a{display:flex;flex-direction:column;text-decoration:none;background:#fffef9}
.energy-gallery-pair img{width:100%;aspect-ratio:1.8;object-fit:cover}
.energy-gallery-pair span{font-size:.72rem;font-weight:700;line-height:1.4;display:flex;justify-content:space-between;gap:10px;padding:10px 12px;color:#153f35}
.energy-gallery-pair b{font-size:1rem;font-weight:400}.energy-gallery-pair a:hover span{text-decoration:underline;text-underline-offset:4px}
.home .cats{grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.home .cat-card{display:flex;flex-direction:column;gap:0;padding:0;background:#fffef9;border:1px solid #bdcbbf}
.home .cat-card .card-media img{aspect-ratio:4/3;width:100%;height:auto;max-height:none}
.home .cat-card .card-body{padding:26px;flex:1}.home .cat-card .card-body::after{position:static;display:block;margin-block-start:16px;padding-block-start:12px;border-block-start:1px solid #d9e2d8;font-size:.72rem}
.home .cat-card h3{font-size:1.8rem;line-height:1.15}.home .cat-card p{font-size:.9rem}
.home .tools{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
.home .tool-card{display:flex;flex-direction:column;gap:0;background:#e9ecdf}
.home .tool-card .card-media img{aspect-ratio:1.85;width:100%;height:auto;min-height:0}
.home .tool-card .card-body{padding:26px 28px;flex:1}.home .tool-card h3{font-family:var(--font-head);font-size:1.8rem;font-weight:500}.home .tool-card p{font-size:.95rem}
.home .tool-card h3 a{text-decoration:none}.home .tool-card:focus-within,.home .cat-card:focus-within{outline:3px solid #916600;outline-offset:5px}
.home .guide-card .card-media img{aspect-ratio:1.55}.home .guides .guide-card:first-child{grid-template-columns:1.15fr 1fr;gap:32px}.home .guides .guide-card:first-child .card-media img{aspect-ratio:1.4;min-height:320px}.home .guide-card h3{font-size:1.8rem}
.reading-path a{min-height:78px}.site-nav a,.site-footer a{min-height:40px;display:inline-flex;align-items:center}
@media(max-width:1000px){.home .cats{gap:18px}.home .cat-card .card-body{padding:22px}.home .cat-card h3{font-size:1.6rem}.hero-text{padding:30px}.hero h1{font-size:3.3rem}}
@media(max-width:900px){.hero{grid-template-columns:minmax(0,1fr)}.hero h1{max-width:18ch}.hero .lead{max-width:60ch}.energy-gallery .hero-media{flex:auto;min-height:0;height:360px}.energy-gallery-pair img{aspect-ratio:2.4}.home .cat-card .card-body{padding:20px}.home .cat-card h3{font-size:1.5rem}.home .guides .guide-card:first-child{gap:24px}.home .guides .guide-card:first-child .card-media img{min-height:0;height:100%}}
@media(max-width:600px){.hero h1{font-size:clamp(2.4rem,10.5vw,3.2rem);max-width:13ch}.hero-text{padding:30px 24px}.energy-gallery{padding:12px;gap:12px}.energy-gallery .hero-media{height:260px}.energy-gallery-pair{gap:12px}.energy-gallery-pair img{aspect-ratio:1.3}.energy-gallery-pair span{font-size:.7rem;padding:10px}.home .cats,.home .tools{grid-template-columns:minmax(0,1fr);gap:26px}.home .cat-card .card-media img{aspect-ratio:1.5;height:auto;max-height:none}.home .cat-card .card-body{padding:24px}.home .cat-card h3{font-size:2rem}.home .cat-card p{font-size:.95rem}.home .cat-card .card-body::after{display:block}.home .tool-card .card-media img{aspect-ratio:1.55;min-height:0}.home .tool-card .card-body{padding:26px}.home .tool-card h3{font-size:1.85rem}.home .guides .guide-card:first-child{display:flex;gap:0}.home .guides .guide-card:first-child .card-media img{aspect-ratio:1.55;height:auto}.home .guides .guide-card:first-child .card-body{padding:24px}.home .guide-card h3{font-size:1.75rem}.reading-path a{min-height:60px}}

/* Household photo stories 2026-11-01 */
.household-stories{margin-block:64px}.household-heading{max-width:70ch;margin-block-end:28px}.household-heading .eyebrow{color:var(--c-primary);font-size:.7rem;letter-spacing:.12em}.household-heading h2{margin-block:10px 16px}.household-heading>p:last-child{color:var(--c-muted)}.household-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}.household-story{min-width:0;background:#fffef9;border:1px solid #bdcbbf}.household-story figure{margin:0}.household-story figure>a{display:block;overflow:hidden}.household-story img{display:block;width:100%;height:auto;aspect-ratio:16/10;object-fit:cover;transition:transform .25s}.household-story figure>a:hover img{transform:scale(1.025)}.household-story figcaption{font-size:.63rem;color:var(--c-muted);padding:8px 24px;border-block-end:1px solid var(--c-soft)}.household-body{padding:26px}.household-body .eyebrow{font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;margin:0 0 12px}.household-body h3{font-family:var(--font-head);font-size:2rem;font-weight:500;line-height:1.2;margin:0}.household-body a{color:var(--c-primary);text-decoration:none}.household-body a:hover{text-decoration:underline}.household-body h3 span{font-size:1.4rem}.household-story:focus-within{outline:3px solid #916600;outline-offset:5px}
@media(max-width:600px){.household-grid{grid-template-columns:minmax(0,1fr);gap:24px}.household-story img{aspect-ratio:1.55}.household-body{padding:24px}.household-body h3{font-size:1.9rem}.household-stories{margin-block:46px}.energy-gallery{order:-1}.energy-gallery .hero-media{height:210px}.energy-gallery-pair img{aspect-ratio:1.8}.hero-text{padding-block-start:24px}}
@media(prefers-reduced-motion:reduce){.household-story img{transition:none}}