:root {
  --ink: #102a43;
  --ink-2: #213d54;
  --muted: #5e7181;
  --paper: #fbfaf6;
  --white: #ffffff;
  --line: #dce4e7;
  --mint: #82dec4;
  --mint-soft: #dff7ef;
  --mint-deep: #087d6b;
  --sky: #b8dff3;
  --navy: #0a314b;
  --orange: #ff7958;
  --yellow: #f3ce61;
  --shadow: 0 24px 70px rgba(16, 42, 67, .12);
  --radius: 22px;
  --max: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; }
button, input, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
.wrap { width: min(calc(100% - 40px), var(--max)); margin-inline: auto; }
.skip-link { position: absolute; top: -60px; left: 16px; z-index: 99; background: var(--ink); color: white; padding: 10px 14px; border-radius: 8px; }
.skip-link:focus { top: 12px; }

.notice {
  background: var(--ink);
  color: #d8e5eb;
  font-size: 13px;
  letter-spacing: .01em;
}
.notice .wrap { min-height: 36px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.notice a { color: var(--mint); text-decoration: none; font-weight: 750; }
.notice a:hover { text-decoration: underline; }

.site-header { position: sticky; top: 0; z-index: 50; background: rgba(251,250,246,.91); backdrop-filter: blur(14px); border-bottom: 1px solid rgba(16,42,67,.08); }
.nav { min-height: 72px; display: flex; align-items: center; gap: 30px; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; font-weight: 850; letter-spacing: -.03em; white-space: nowrap; }
.brand-mark { width: 34px; height: 34px; display: grid; place-items: center; background: var(--mint); border-radius: 10px 10px 10px 3px; color: var(--ink); font-size: 15px; font-weight: 900; }
.nav-links { margin-left: auto; display: flex; align-items: center; gap: 26px; }
.nav-links > a:not(.button) { text-decoration: none; font-weight: 700; font-size: 14px; }
.nav-links > a:not(.button):hover { color: var(--mint-deep); }
.menu-toggle { display: none; margin-left: auto; border: 0; background: transparent; color: var(--ink); padding: 8px; cursor: pointer; }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 19px; border: 1px solid var(--ink); border-radius: 999px; background: var(--ink); color: white; text-decoration: none; font-weight: 800; font-size: 14px; cursor: pointer; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 10px 26px rgba(16,42,67,.17); }
.button.light { background: white; color: var(--ink); }
.button.mint { background: var(--mint); color: var(--ink); border-color: var(--mint); }
.button.small { min-height: 40px; padding-inline: 16px; font-size: 13px; }
.text-link { display: inline-flex; gap: 7px; align-items: center; font-weight: 800; color: var(--ink); text-underline-offset: 4px; }
.text-link:hover { color: var(--mint-deep); }

.hero { position: relative; overflow: hidden; padding: 82px 0 66px; border-bottom: 1px solid var(--line); }
.hero::before { content: ""; position: absolute; width: 530px; height: 530px; right: -240px; top: -230px; border: 1px solid #b9d1d6; border-radius: 50%; box-shadow: 0 0 0 70px rgba(130,222,196,.08), 0 0 0 140px rgba(184,223,243,.07); }
.hero-grid { position: relative; display: grid; grid-template-columns: 1.07fr .93fr; gap: 58px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; margin: 0 0 18px; color: var(--mint-deep); font-size: 12px; font-weight: 900; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow::before { content: ""; width: 30px; height: 2px; background: currentColor; }
h1, h2, h3 { margin: 0; font-family: Georgia, "Times New Roman", serif; line-height: 1.08; letter-spacing: -.035em; }
h1 { max-width: 700px; font-size: clamp(45px, 5.4vw, 73px); }
h1 .wash { position: relative; z-index: 0; white-space: nowrap; }
h1 .wash::after { content: ""; position: absolute; z-index: -1; height: .25em; background: var(--mint); left: -.02em; right: -.03em; bottom: .08em; border-radius: 99px; transform: rotate(-1.5deg); opacity: .75; }
.hero .lead { max-width: 650px; margin: 25px 0 0; color: var(--ink-2); font-size: 18px; line-height: 1.7; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 30px; }
.review-line { display: flex; align-items: center; gap: 14px; margin-top: 25px; color: var(--muted); font-size: 13px; }
.review-line strong { color: var(--ink); }
.review-avatars { display: flex; }
.review-avatars span { width: 29px; height: 29px; margin-left: -6px; display: grid; place-items: center; border: 2px solid var(--paper); border-radius: 50%; background: var(--sky); color: var(--ink); font-size: 10px; font-weight: 900; }
.review-avatars span:first-child { margin-left: 0; background: var(--mint); }
.review-avatars span:last-child { background: var(--yellow); }

.device-stage { min-height: 535px; position: relative; display: grid; place-items: center; }
.device-orbit { position: absolute; width: 440px; height: 440px; border-radius: 50%; background: var(--mint); box-shadow: inset -46px -35px 0 rgba(0,0,0,.035); }
.device-orbit::before, .device-orbit::after { content: ""; position: absolute; border-radius: 50%; border: 1px dashed rgba(16,42,67,.32); }
.device-orbit::before { inset: 30px; }
.device-orbit::after { inset: 80px; }
.device-img { position: relative; z-index: 2; width: 360px; transform: rotate(-5deg); filter: drop-shadow(0 30px 24px rgba(16,42,67,.24)); }
.signal { position: absolute; z-index: 3; min-width: 170px; padding: 12px 15px; border: 1px solid rgba(16,42,67,.13); border-radius: 14px; background: rgba(255,255,255,.94); box-shadow: 0 12px 35px rgba(16,42,67,.13); font-size: 12px; font-weight: 800; }
.signal strong { display: block; font-size: 14px; }
.signal .dot { display: inline-block; width: 8px; height: 8px; margin-right: 6px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 5px rgba(255,121,88,.15); }
.signal.one { top: 54px; right: -8px; }
.signal.two { left: -16px; bottom: 89px; }
.signal.three { right: 9px; bottom: 42px; }
.signal.three .dot { background: var(--mint-deep); box-shadow: 0 0 0 5px rgba(8,125,107,.13); }
.source-note { position: absolute; bottom: 0; right: 0; color: var(--muted); font-size: 11px; }

.decision-strip { background: white; border-bottom: 1px solid var(--line); }
.decision-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.decision-item { padding: 27px 34px; border-left: 1px solid var(--line); }
.decision-item:last-child { border-right: 1px solid var(--line); }
.decision-item span { display: block; margin-bottom: 4px; color: var(--muted); font-size: 11px; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.decision-item strong { font-family: Georgia, serif; font-size: 20px; letter-spacing: -.02em; }

.section { padding: 94px 0; }
.section.tight { padding: 72px 0; }
.section.tint { background: #eff6f4; }
.section.dark { background: var(--navy); color: white; }
.section-head { display: grid; grid-template-columns: 1fr .7fr; gap: 50px; align-items: end; margin-bottom: 42px; }
.section-head h2 { font-size: clamp(34px, 4vw, 51px); }
.section-head p { margin: 0; color: var(--muted); }
.dark .section-head p { color: #b9cbd4; }
.kicker { display: block; margin-bottom: 11px; color: var(--mint-deep); font-size: 12px; font-weight: 900; letter-spacing: .13em; text-transform: uppercase; }
.dark .kicker { color: var(--mint); }

.pick-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: 18px; }
.pick { min-height: 248px; position: relative; overflow: hidden; padding: 28px; border: 1px solid var(--line); border-radius: var(--radius); background: white; }
.pick:nth-child(1) { grid-column: span 6; background: var(--ink); color: white; border-color: var(--ink); }
.pick:nth-child(2), .pick:nth-child(3) { grid-column: span 3; }
.pick:nth-child(4), .pick:nth-child(5) { grid-column: span 6; }
.pick-number { display: inline-grid; place-items: center; width: 35px; height: 35px; margin-bottom: 34px; border: 1px solid currentColor; border-radius: 50%; font-size: 12px; font-weight: 900; opacity: .8; }
.pick h3 { max-width: 360px; margin-bottom: 13px; font-size: 26px; }
.pick p { margin: 0; color: var(--muted); font-size: 14px; }
.pick:nth-child(1) p { max-width: 390px; color: #c9d5dc; }
.pick .badge { position: absolute; right: 20px; top: 20px; padding: 7px 10px; border-radius: 99px; background: var(--mint-soft); color: var(--mint-deep); font-size: 10px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.pick:nth-child(1) .badge { background: var(--mint); color: var(--ink); }
.pick-art { position: absolute; right: -16px; bottom: -38px; width: 158px; height: 158px; border-radius: 44px; background: var(--mint); transform: rotate(23deg); opacity: .25; }

.table-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin: -12px 0 20px; }
.table-toolbar p { margin: 0; color: var(--muted); font-size: 13px; }
.legend { display: flex; align-items: center; gap: 9px; font-size: 11px; font-weight: 850; color: var(--muted); }
.legend .yes { color: var(--mint-deep); }
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); background: white; box-shadow: 0 14px 44px rgba(16,42,67,.06); }
table { width: 100%; min-width: 950px; border-collapse: collapse; font-size: 13px; }
th, td { padding: 17px 18px; text-align: left; vertical-align: top; border-bottom: 1px solid var(--line); }
th { position: sticky; top: 0; z-index: 1; background: #eef4f3; color: var(--muted); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
th:first-child, td:first-child { position: sticky; left: 0; z-index: 2; width: 160px; background: white; box-shadow: 8px 0 13px rgba(16,42,67,.04); }
th:first-child { background: #eef4f3; z-index: 3; }
tr:last-child td { border-bottom: 0; }
td strong { font-size: 15px; }
.cell-link { color: var(--mint-deep); font-weight: 800; text-underline-offset: 3px; }
.check { color: var(--mint-deep); font-weight: 900; }
.dash { color: #9ba9b1; }
.claim { display: inline-block; margin-top: 7px; padding: 4px 7px; border-radius: 5px; background: #f4ead0; color: #7b5a09; font-size: 9px; font-weight: 900; letter-spacing: .07em; text-transform: uppercase; }
.verified { margin-top: 14px; color: var(--muted); font-size: 11px; text-align: right; }

.method-grid { display: grid; grid-template-columns: .92fr 1.08fr; gap: 70px; align-items: start; }
.method-copy h2 { margin-bottom: 21px; font-size: clamp(36px, 4vw, 52px); }
.method-copy p { color: #c8d6dd; }
.method-copy .label-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 24px; }
.evidence-label { padding: 7px 9px; border: 1px solid rgba(255,255,255,.23); border-radius: 6px; color: #e6eef1; font-size: 9px; font-weight: 900; letter-spacing: .08em; }
.score-list { display: grid; gap: 12px; }
.score-row { display: grid; grid-template-columns: 1fr 3fr 48px; gap: 14px; align-items: center; font-size: 13px; }
.score-row .bar { height: 7px; overflow: hidden; border-radius: 99px; background: rgba(255,255,255,.12); }
.score-row .bar i { display: block; height: 100%; border-radius: inherit; background: var(--mint); }
.score-row strong { text-align: right; }

.product-stack { display: grid; gap: 16px; }
.product-card { display: grid; grid-template-columns: 82px 1fr auto; gap: 22px; align-items: center; padding: 24px 27px; border: 1px solid var(--line); border-radius: 18px; background: white; }
.vendor-token { width: 64px; height: 64px; display: grid; place-items: center; border-radius: 17px; background: var(--mint-soft); color: var(--mint-deep); font-family: Georgia, serif; font-size: 21px; font-weight: 800; }
.product-card:nth-child(2) .vendor-token { background: #e9eef8; color: #405d8a; }
.product-card:nth-child(3) .vendor-token { background: #fff0e8; color: #b24e30; }
.product-card:nth-child(4) .vendor-token { background: #f4eddd; color: #745d27; }
.product-card:nth-child(5) .vendor-token { background: #eee9f8; color: #644a94; }
.product-card h3 { margin-bottom: 7px; font-size: 23px; }
.product-card p { max-width: 710px; margin: 0; color: var(--muted); font-size: 14px; }
.product-meta { text-align: right; }
.product-meta span { display: block; margin-bottom: 8px; color: var(--muted); font-size: 10px; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }

.criteria-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.criterion { padding: 27px; border-top: 3px solid var(--ink); background: white; }
.criterion:nth-child(3n+2) { border-color: var(--mint-deep); }
.criterion:nth-child(3n+3) { border-color: var(--orange); }
.criterion .icon { width: 42px; height: 42px; display: grid; place-items: center; margin-bottom: 23px; border-radius: 12px; background: #edf2f2; font-size: 19px; }
.criterion h3 { margin-bottom: 10px; font-size: 21px; }
.criterion p { margin: 0; color: var(--muted); font-size: 14px; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.option-card { overflow: hidden; padding: 34px; border: 1px solid var(--line); border-radius: var(--radius); background: white; }
.option-card.featured { background: var(--mint-soft); border-color: #b7dfd4; }
.option-tag { display: inline-block; padding: 6px 9px; margin-bottom: 28px; border-radius: 5px; background: var(--ink); color: white; font-size: 10px; font-weight: 900; letter-spacing: .1em; text-transform: uppercase; }
.option-card h3 { margin-bottom: 12px; font-size: 29px; }
.option-card > p { color: var(--muted); }
.pros { margin: 24px 0 0; padding: 0; list-style: none; }
.pros li { display: flex; gap: 10px; padding: 9px 0; border-top: 1px solid rgba(16,42,67,.11); font-size: 14px; }
.pros li::before { content: "✓"; color: var(--mint-deep); font-weight: 900; }
.callout { margin-top: 22px; padding: 18px 20px; border-left: 3px solid var(--orange); background: #fff3ed; color: var(--ink-2); font-family: Georgia, serif; font-size: 18px; }

.calculator { display: grid; grid-template-columns: .9fr 1.1fr; overflow: hidden; border-radius: 26px; background: var(--navy); color: white; box-shadow: var(--shadow); }
.calc-copy { padding: 48px; background: var(--mint); color: var(--ink); }
.calc-copy h2 { font-size: 41px; }
.calc-copy p { margin: 16px 0 0; color: var(--ink-2); }
.formula { margin-top: 27px; padding: 16px; border: 1px solid rgba(16,42,67,.2); border-radius: 12px; font-size: 12px; font-weight: 800; }
.calc-form { padding: 42px 48px; }
.field-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 17px; }
.field label { display: block; margin-bottom: 7px; color: #c4d3da; font-size: 11px; font-weight: 850; letter-spacing: .07em; text-transform: uppercase; }
.field input { width: 100%; height: 48px; padding: 0 13px; border: 1px solid rgba(255,255,255,.19); border-radius: 10px; background: rgba(255,255,255,.08); color: white; outline: none; }
.field input:focus { border-color: var(--mint); box-shadow: 0 0 0 3px rgba(130,222,196,.13); }
.calc-result { display: flex; justify-content: space-between; gap: 30px; margin-top: 27px; padding-top: 23px; border-top: 1px solid rgba(255,255,255,.18); }
.calc-result span { color: #b9cbd4; font-size: 12px; }
.calc-result strong { display: block; margin-top: 4px; color: var(--mint); font-family: Georgia, serif; font-size: 35px; }
.calc-note { margin: 17px 0 0; color: #9cb2bd; font-size: 11px; }

.placement { display: grid; grid-template-columns: .85fr 1.15fr; gap: 55px; align-items: center; }
.placement-copy h2 { font-size: 44px; }
.placement-copy p { color: var(--muted); }
.factor-list { display: flex; flex-wrap: wrap; gap: 9px; margin: 23px 0 28px; }
.factor-list span { padding: 8px 11px; border: 1px solid var(--line); border-radius: 99px; background: white; color: var(--ink-2); font-size: 12px; font-weight: 750; }
.room-map { position: relative; min-height: 410px; overflow: hidden; border: 1px solid #bad3ce; border-radius: 26px; background: #dff4ee; }
.room-map::before { content: ""; position: absolute; inset: 50px; border: 2px solid var(--ink); background: #f8fbfa; }
.stalls { position: absolute; z-index: 2; left: 51px; top: 51px; bottom: 51px; width: 46%; display: grid; grid-template-rows: repeat(4,1fr); }
.stalls i { border-right: 2px solid var(--ink); border-bottom: 1px solid #9eb3b9; }
.sink { position: absolute; z-index: 2; right: 74px; top: 91px; width: 90px; height: 30px; border: 2px solid var(--ink); border-radius: 0 0 20px 20px; }
.sink.s2 { top: 158px; }
.door { position: absolute; z-index: 2; right: 50px; bottom: 50px; width: 70px; height: 72px; border-left: 2px solid var(--ink); border-top: 2px dashed #7c959e; }
.sensor-point { position: absolute; z-index: 3; left: 52%; top: 52%; width: 24px; height: 24px; border: 6px solid white; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 2px var(--orange), 0 0 0 68px rgba(255,121,88,.11), 0 0 0 128px rgba(255,121,88,.06); }
.room-note { position: absolute; z-index: 4; right: 31px; top: 23px; padding: 8px 10px; border-radius: 7px; background: var(--ink); color: white; font-size: 10px; font-weight: 900; letter-spacing: .06em; }

.evidence-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.evidence-card { padding: 32px; border: 1px solid var(--line); border-radius: var(--radius); background: white; }
.evidence-card h3 { margin-bottom: 12px; font-size: 28px; }
.evidence-card p { color: var(--muted); }
.evidence-card .answer { padding-top: 17px; border-top: 1px solid var(--line); color: var(--ink); font-weight: 800; }
.evidence-card:first-child { border-top: 5px solid var(--mint-deep); }
.evidence-card:last-child { border-top: 5px solid var(--orange); }

.info-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.info-panel { padding: 38px; border-radius: 24px; background: var(--ink); color: white; }
.info-panel:nth-child(2) { background: var(--yellow); color: var(--ink); }
.info-panel h2 { font-size: 35px; }
.info-panel p { color: #c4d2d8; }
.info-panel:nth-child(2) p { color: var(--ink-2); }
.info-panel .text-link { color: inherit; }

.faq-list { max-width: 900px; margin: 0 auto; }
.faq-list details { border-top: 1px solid var(--line); }
.faq-list details:last-child { border-bottom: 1px solid var(--line); }
.faq-list summary { position: relative; padding: 23px 48px 23px 0; cursor: pointer; list-style: none; font-family: Georgia, serif; font-size: 21px; font-weight: 700; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 5px; top: 18px; width: 32px; height: 32px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; font-family: system-ui; font-size: 19px; }
.faq-list details[open] summary::after { content: "−"; background: var(--mint); border-color: var(--mint); }
.faq-answer { max-width: 760px; padding: 0 0 24px; color: var(--muted); }

.final-cta { padding: 80px 0; background: var(--mint); }
.cta-box { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 40px; }
.cta-box h2 { max-width: 750px; font-size: clamp(36px, 4.5vw, 56px); }
.cta-box p { margin-bottom: 0; color: var(--ink-2); }
.cta-actions { display: grid; gap: 10px; }

.footer { padding: 54px 0 24px; background: #071f30; color: #d3e0e6; }
.footer-grid { display: grid; grid-template-columns: 1.2fr .7fr .7fr .7fr; gap: 50px; }
.footer .brand { color: white; }
.footer-intro { max-width: 360px; color: #9db3be; font-size: 13px; }
.footer h3 { margin-bottom: 16px; color: white; font-family: inherit; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.footer-links { display: grid; gap: 9px; }
.footer-links a { color: #b8c9d1; font-size: 13px; text-decoration: none; }
.footer-links a:hover { color: var(--mint); }
.copyright { display: flex; justify-content: space-between; gap: 20px; margin-top: 17px; color: #7f99a5; font-size: 11px; }

.article-hero { padding: 74px 0 48px; background: #eaf5f2; border-bottom: 1px solid var(--line); }
.article-hero h1 { max-width: 820px; font-size: clamp(42px, 5vw, 64px); }
.article-hero p { max-width: 720px; font-size: 18px; color: var(--ink-2); }
.breadcrumbs { margin-bottom: 22px; color: var(--muted); font-size: 12px; }
.breadcrumbs a { text-underline-offset: 3px; }
.article-shell { display: grid; grid-template-columns: 250px minmax(0, 760px); gap: 70px; align-items: start; padding: 66px 0 90px; }
.article-nav { position: sticky; top: 104px; padding: 20px; border: 1px solid var(--line); background: white; }
.article-nav strong { display: block; margin-bottom: 9px; font-size: 11px; letter-spacing: .1em; text-transform: uppercase; }
.article-nav a { display: block; padding: 6px 0; color: var(--muted); font-size: 13px; text-decoration: none; }
.article-nav a:hover { color: var(--mint-deep); }
.prose h2 { margin: 45px 0 15px; font-size: 34px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin: 30px 0 10px; font-size: 24px; }
.prose p, .prose li { color: var(--ink-2); }
.prose li { margin-bottom: 7px; }
.prose .note { padding: 21px 23px; border-left: 4px solid var(--mint-deep); background: #edf6f3; }

@media (max-width: 980px) {
  .hero-grid, .method-grid, .calculator, .placement { grid-template-columns: 1fr; }
  .hero-grid { gap: 32px; }
  .device-stage { min-height: 480px; }
  .section-head { grid-template-columns: 1fr; gap: 18px; }
  .pick:nth-child(n) { grid-column: span 6; }
  .pick:nth-child(5) { grid-column: span 12; }
  .criteria-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; }
  .footer-grid > div:nth-child(4) { grid-column: 2; }
  .article-shell { grid-template-columns: 1fr; }
  .article-nav { display: none; }
}

@media (max-width: 760px) {
  .wrap { width: min(calc(100% - 28px), var(--max)); }
  .notice .wrap { justify-content: center; text-align: center; }
  .notice span:last-child { display: none; }
  .nav { min-height: 64px; }
  .nav-links { position: absolute; top: 64px; left: 0; right: 0; display: none; margin: 0; padding: 20px; background: var(--paper); border-bottom: 1px solid var(--line); box-shadow: 0 16px 28px rgba(16,42,67,.09); }
  .nav-links.open { display: grid; }
  .menu-toggle { display: block; }
  .hero { padding: 57px 0 44px; }
  h1 { font-size: 43px; }
  .hero .lead { font-size: 16px; }
  .hero-actions .button { width: 100%; }
  .device-stage { min-height: 385px; }
  .device-orbit { width: 310px; height: 310px; }
  .device-img { width: 270px; }
  .signal { min-width: 143px; padding: 9px 11px; }
  .signal.one { top: 28px; right: 0; }
  .signal.two { left: 0; bottom: 49px; }
  .signal.three { display: none; }
  .source-note { bottom: -9px; }
  .decision-grid { grid-template-columns: 1fr; padding: 12px 0; }
  .decision-item { padding: 17px 14px; border: 0; border-bottom: 1px solid var(--line); }
  .decision-item:last-child { border: 0; }
  .section { padding: 70px 0; }
  .section.tight { padding: 54px 0; }
  .pick-grid { grid-template-columns: 1fr; }
  .pick:nth-child(n) { grid-column: auto; min-height: 220px; }
  .table-toolbar { align-items: flex-start; flex-direction: column; }
  .method-grid { gap: 36px; }
  .score-row { grid-template-columns: 1.2fr 1.8fr 38px; gap: 8px; font-size: 11px; }
  .product-card { grid-template-columns: 58px 1fr; gap: 15px; padding: 20px; }
  .vendor-token { width: 52px; height: 52px; border-radius: 13px; font-size: 17px; }
  .product-meta { grid-column: 2; text-align: left; }
  .criteria-grid, .split, .field-grid, .evidence-grid, .info-pair { grid-template-columns: 1fr; }
  .calc-copy, .calc-form { padding: 32px 24px; }
  .calc-result { flex-direction: column; gap: 14px; }
  .room-map { min-height: 330px; }
  .room-map::before { inset: 35px; }
  .stalls { left: 36px; top: 36px; bottom: 36px; }
  .sink { right: 50px; top: 72px; width: 70px; }
  .sink.s2 { top: 128px; }
  .door { right: 35px; bottom: 35px; }
  .cta-box { grid-template-columns: 1fr; }
  .cta-actions { width: 100%; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer-grid > div:first-child { grid-column: 1 / -1; }
  .footer-grid > div:nth-child(4) { grid-column: auto; }
  .copyright { flex-direction: column; }
}

@media (prefers-reduced-motion: no-preference) {
  .device-img { animation: float 6s ease-in-out infinite; }
  .signal { animation: drift 6s ease-in-out infinite; }
  .signal.two { animation-delay: -2s; }
  .signal.three { animation-delay: -4s; }
  @keyframes float { 0%, 100% { transform: rotate(-5deg) translateY(0); } 50% { transform: rotate(-3deg) translateY(-10px); } }
  @keyframes drift { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(6px); } }
}