:root {
  --ink: #102226;
  --muted: #557076;
  --water: #0d5f70;
  --deep: #073642;
  --signal: #f0a23a;
  --foam: #f4f8f7;
  --line: #cfdddc;
  --paper: #ffffff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.68;
}

a { color: var(--water); }

.site-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 2rem;
  padding: 1.15rem max(1.25rem, calc((100vw - 1120px) / 2));
  color: white;
  background: var(--deep);
}

.site-header span { color: #bcd3d4; font-size: .9rem; }
.brand { display: inline-flex; align-items: center; gap: .55rem; color: white; font-size: 1.15rem; font-weight: 800; text-decoration: none; letter-spacing: .02em; }
.brand img { width: 2rem; height: 2rem; flex: 0 0 auto; }
.site-header nav { display: flex; gap: 1.25rem; }
.site-header nav a { color: #dcebec; font-size: .86rem; font-weight: 700; text-decoration: none; }

main { width: min(1120px, calc(100% - 2.5rem)); margin: 0 auto; }

.hero {
  padding: 6rem 0 4.5rem;
  max-width: 850px;
}

.eyebrow { color: var(--water); font-weight: 800; letter-spacing: .16em; }
h1 { margin: 0 0 1.2rem; font-size: clamp(2.2rem, 5vw, 4.8rem); line-height: 1.04; letter-spacing: -.045em; }
.hero > p:last-child { max-width: 720px; color: var(--muted); font-size: 1.2rem; }

.home-hero { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(360px, .95fr); gap: clamp(2rem, 5vw, 5rem); align-items: center; min-height: 710px; padding: 5rem 0; }
.home-hero-copy h1 { max-width: 760px; }
.home-hero-copy > p:not(.eyebrow) { max-width: 650px; color: var(--muted); font-size: 1.2rem; }
.primary-action { display: inline-block; margin-top: 1.3rem; padding: .9rem 1.2rem; color: white; background: var(--water); border-radius: 7px; font-weight: 800; text-decoration: none; }
.home-hero-visual { position: relative; margin: 0; overflow: hidden; min-height: 560px; border-radius: 18px; background: var(--deep); }
.home-hero-visual::after { position: absolute; inset: 0; content: ""; background: linear-gradient(180deg, transparent 45%, rgba(7,54,66,.82)); pointer-events: none; }
.home-hero-visual img { width: 100%; height: 560px; object-fit: cover; }
.home-hero-visual figcaption { position: absolute; z-index: 1; right: 1.25rem; bottom: 1rem; left: 1.25rem; color: white; font-size: .8rem; }
.proof-strip { display: grid; grid-template-columns: repeat(4, 1fr); margin: 0 0 6rem; border-block: 1px solid var(--line); }
.proof-strip div { display: grid; gap: .15rem; padding: 1.5rem; border-right: 1px solid var(--line); }
.proof-strip div:last-child { border-right: 0; }
.proof-strip strong { color: var(--deep); font-size: 1.45rem; }
.proof-strip span { color: var(--muted); font-size: .82rem; }
.video-section { padding-top: 0; }
.video-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }
.video-card { overflow: hidden; border: 1px solid var(--line); border-radius: 1rem; background: var(--paper); box-shadow: 0 14px 38px rgba(16, 39, 54, .08); }
.video-frame { position: relative; aspect-ratio: 16 / 9; background: #07141d; }
.video-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.video-card > div:last-child { padding: 1.15rem 1.25rem 1.35rem; }
.video-card span { color: var(--water); font-size: .72rem; font-weight: 800; letter-spacing: .09em; }
.video-card h3 { margin: .3rem 0 .35rem; font-size: 1.35rem; }
.video-card p { margin: 0; color: var(--muted); }
.home-section { padding: 1rem 0 6rem; }
.section-heading { max-width: 750px; margin-bottom: 2rem; }
.section-heading h2 { margin: .3rem 0 .75rem; font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1.06; letter-spacing: -.035em; }
.section-heading > p:last-child { color: var(--muted); font-size: 1.08rem; }
.model-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1rem; }
.model-card { display: flex; min-width: 0; flex-direction: column; padding: 1rem; color: var(--ink); border: 1px solid var(--line); border-radius: 14px; text-decoration: none; background: white; }
.model-card:hover { border-color: var(--water); transform: translateY(-3px); }
.model-card img { width: 100%; aspect-ratio: 1 / 1; margin-bottom: 1rem; object-fit: contain; background: var(--foam); border-radius: 9px; }
.model-card span { color: var(--water); font-size: .72rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.model-card strong { margin-top: .3rem; font-size: 1.05rem; line-height: 1.2; }
.model-card small { margin-top: .35rem; color: var(--muted); line-height: 1.35; }
.image-credit { color: var(--muted); font-size: .78rem; text-align: right; }
.method-section { margin-inline: 0; padding: clamp(2rem, 5vw, 5rem); color: white; background: var(--deep); border-radius: 18px; }
.method-section .eyebrow { color: #7bc3cb; }
.method-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: #2c5d66; }
.method-grid article { padding: 1.5rem; background: var(--deep); }
.method-grid b { color: var(--signal); font-size: .8rem; letter-spacing: .1em; }
.method-grid h3 { margin: 1rem 0 .6rem; font-size: 1.15rem; }
.method-grid p { margin: 0; color: #c6d9db; font-size: .92rem; }
.evidence-section { padding-top: 6rem; }
.evidence-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .9rem; }
.evidence-grid article { position: relative; overflow: hidden; min-width: 0; padding: 1.4rem; border: 1px solid var(--line); border-radius: 14px; background: var(--paper); }
.evidence-grid article::after { position: absolute; right: -1.2rem; bottom: -2.2rem; width: 7rem; height: 7rem; content: ""; border: 1rem solid var(--foam); border-radius: 50%; }
.evidence-grid b { color: var(--water); font-size: .72rem; letter-spacing: .09em; }
.evidence-grid h3 { margin: 1.1rem 0 .55rem; color: var(--deep); font-size: 1.2rem; }
.evidence-grid p { position: relative; z-index: 1; margin: 0; color: var(--muted); font-size: .91rem; }

.guide-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  padding-bottom: 5rem;
}

.card {
  display: grid;
  gap: .6rem;
  padding: 1.5rem;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 12px;
  text-decoration: none;
}

.card:hover { border-color: var(--water); transform: translateY(-2px); }
.card strong { font-size: 1.15rem; line-height: 1.3; }
.card span { color: var(--muted); }

.article-shell { max-width: 860px; padding: 4rem 0; }
article h1 { font-size: clamp(2.3rem, 6vw, 4.2rem); }
article h2 { margin-top: 3.2rem; font-size: 1.75rem; line-height: 1.2; }
article h3 { margin-top: 2.2rem; font-size: 1.25rem; }
article > p:first-of-type { font-size: 1.18rem; color: var(--deep); }
article li, article p { overflow-wrap: anywhere; }

.product-hero {
  margin: 2rem 0 2.5rem;
  padding: clamp(1.2rem, 4vw, 2.5rem);
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--foam);
}

.product-hero img { display: block; width: min(100%, 620px); max-height: 560px; margin: 0 auto; object-fit: contain; }
.product-hero figcaption { margin-top: .75rem; color: var(--muted); font-size: .82rem; text-align: center; }
.article-model-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: .8rem; margin: 2rem 0 .5rem; }
.article-model-grid figure { margin: 0; padding: .8rem; border: 1px solid var(--line); border-radius: 12px; background: white; }
.article-model-grid img { width: 100%; aspect-ratio: 1 / 1; object-fit: contain; background: var(--foam); border-radius: 8px; }
.article-model-grid figcaption { display: grid; gap: .15rem; margin-top: .6rem; }
.article-model-grid figcaption b { color: var(--water); font-size: .72rem; letter-spacing: .04em; text-transform: uppercase; }
.article-model-grid figcaption span { font-weight: 800; }
.decision-map { margin: 2.25rem 0 3rem; padding: 1.15rem; border: 1px solid var(--line); border-radius: 14px; background: var(--foam); }
.decision-map > strong { display: block; margin-bottom: .75rem; color: var(--water); font-size: .72rem; letter-spacing: .1em; }
.decision-map > div { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .55rem; }
.decision-map a { display: grid; grid-template-columns: 2rem minmax(0, 1fr); align-items: center; min-width: 0; padding: .72rem .8rem; color: var(--ink); border: 1px solid transparent; border-radius: 9px; background: white; text-decoration: none; }
.decision-map a:hover { border-color: var(--water); }
.decision-map a b { color: var(--signal); font-size: .74rem; }
.decision-map a span { overflow-wrap: anywhere; font-size: .86rem; font-weight: 750; line-height: 1.25; }
.system-flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; margin: 2rem 0; overflow: hidden; border-radius: 12px; background: var(--line); }
.system-flow div { display: grid; gap: .35rem; padding: 1.2rem; background: var(--foam); }
.system-flow b { color: var(--signal); font-size: .75rem; letter-spacing: .08em; }
.system-flow strong { color: var(--deep); }
.system-flow span { color: var(--muted); font-size: .82rem; }
.complete-cart { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1px; margin: 2rem 0 2.5rem; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: var(--line); }
.complete-cart div { display: grid; gap: .28rem; padding: 1rem; background: var(--foam); }
.complete-cart b { color: var(--signal); font-size: .72rem; letter-spacing: .08em; }
.complete-cart strong { color: var(--deep); }
.complete-cart span { color: var(--muted); font-size: .79rem; line-height: 1.35; }
.upgrade-strip { display: grid; grid-template-columns: minmax(0, 1fr) minmax(120px, .45fr) minmax(0, 1fr); align-items: stretch; gap: 1px; margin: 2rem 0 2.5rem; overflow: hidden; border-radius: 14px; background: var(--line); }
.upgrade-strip > div { display: grid; align-content: center; gap: .35rem; min-width: 0; padding: 1.25rem; background: var(--foam); }
.upgrade-strip > div > span:first-child { color: var(--water); font-size: .7rem; font-weight: 800; letter-spacing: .08em; }
.upgrade-strip strong { color: var(--deep); font-size: 1.25rem; }
.upgrade-strip small { color: var(--muted); line-height: 1.45; }
.upgrade-strip .upgrade-arrow { text-align: center; background: var(--deep); }
.upgrade-strip .upgrade-arrow b { color: var(--signal); font-size: 1.2rem; }
.upgrade-strip .upgrade-arrow span { color: #d5e6e7; font-size: .78rem; line-height: 1.4; }
.fit-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; margin: 2rem 0 2.5rem; }
.fit-grid div { display: grid; gap: .35rem; min-width: 0; padding: 1.15rem; border: 1px solid var(--line); border-radius: 12px; background: var(--foam); }
.fit-grid b { color: var(--water); font-size: .7rem; letter-spacing: .09em; }
.fit-grid strong { color: var(--deep); font-size: 1.08rem; }
.fit-grid span { color: var(--muted); font-size: .86rem; line-height: 1.45; }
.buyer-pain-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; margin: 1.5rem 0 2.5rem; }
.buyer-pain-grid div { display: grid; gap: .4rem; min-width: 0; padding: 1.2rem; border-left: 4px solid var(--signal); border-radius: 4px 12px 12px 4px; background: #fff8ee; }
.buyer-pain-grid b { color: var(--water); font-size: .83rem; }
.buyer-pain-grid strong { color: var(--deep); font-size: 1.08rem; }
.buyer-pain-grid span { color: var(--muted); font-size: .86rem; line-height: 1.48; }
.performance-chart { display: grid; gap: 1rem; margin: 2rem 0 2.5rem; padding: 1.25rem; border: 1px solid var(--line); border-radius: 14px; background: var(--foam); }
.chart-legend { display: flex; flex-wrap: wrap; gap: 1rem; color: var(--muted); font-size: .78rem; font-weight: 700; }
.chart-legend span { display: inline-flex; align-items: center; gap: .4rem; }
.chart-legend i { width: .8rem; height: .8rem; border-radius: 3px; }
.fm-key { background: #68a4ad; }
.bm-key { background: var(--deep); }
.performance-chart .metric { display: grid; grid-template-columns: minmax(130px, .55fr) minmax(0, 1.45fr); gap: 1rem; align-items: center; }
.performance-chart .metric > strong { color: var(--deep); font-size: .86rem; }
.performance-chart .bars { display: grid; gap: .35rem; min-width: 0; }
.performance-chart .bars span { display: block; width: var(--bar); min-width: 5rem; padding: .38rem .55rem; color: white; border-radius: 5px; font-size: .75rem; font-weight: 800; }
.performance-chart .fm { background: #68a4ad; }
.performance-chart .bm { background: var(--deep); }
.performance-chart > p { margin: 0; color: var(--muted); font-size: .76rem; }
.inspection-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .7rem; margin: 2rem 0; }
.inspection-grid div { display: grid; gap: .3rem; padding: 1rem; border: 1px solid var(--line); border-radius: 10px; background: var(--foam); }
.inspection-grid b { color: var(--water); }
.inspection-grid span { color: var(--muted); font-size: .84rem; }
.route-cards, .job-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: .8rem; margin: 2rem 0; }
.route-cards div, .job-grid div { display: grid; gap: .35rem; padding: 1.15rem; border: 1px solid var(--line); border-radius: 12px; background: var(--foam); }
.route-cards span:first-child, .job-grid b { color: var(--water); font-size: .72rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; }
.route-cards strong, .job-grid strong { font-size: 1.05rem; }
.route-cards p, .job-grid span { margin: 0; color: var(--muted); font-size: .87rem; }
.family-visual { display: grid; grid-template-columns: repeat(2, 1fr); gap: .8rem; margin: 2rem 0 .5rem; }
.family-visual figure { margin: 0; padding: 1rem; border: 1px solid var(--line); border-radius: 14px; background: white; }
.family-visual img { width: 100%; aspect-ratio: 4 / 3; object-fit: contain; background: var(--foam); border-radius: 9px; }
.family-visual figcaption { display: grid; gap: .25rem; margin-top: .75rem; }
.family-visual figcaption b { color: var(--water); font-size: 1.05rem; }
.family-visual figcaption span { color: var(--muted); font-size: .86rem; }
.faq-list { display: grid; gap: .65rem; margin: 1.5rem 0 2.5rem; }
.faq-list details { border: 1px solid var(--line); border-radius: 10px; background: white; }
.faq-list summary { padding: 1rem 3rem 1rem 1.1rem; color: var(--deep); font-weight: 800; cursor: pointer; }
.faq-list details[open] summary { border-bottom: 1px solid var(--line); }
.faq-list details p { margin: 0; padding: 1rem 1.1rem; color: var(--muted); }

table { display: block; width: 100%; overflow-x: auto; border-collapse: collapse; margin: 1.5rem 0; font-size: .94rem; }
th, td { min-width: 135px; padding: .75rem; text-align: left; vertical-align: top; border: 1px solid var(--line); }
th { background: var(--foam); }

blockquote { margin: 2rem 0; padding: 1rem 1.3rem; border-left: 4px solid var(--signal); background: #fff8ee; }
.cta-plan { margin: 2.25rem 0; padding: 1.25rem 1.35rem; border: 2px dashed #93b5b7; border-radius: 12px; background: var(--foam); }
.cta-plan strong { display: block; margin-bottom: .35rem; color: var(--deep); font-size: 1.05rem; }
.cta-plan span { display: block; color: var(--muted); font-size: .92rem; }
.cta-helper { display: inline-block; margin-top: .85rem; color: var(--water); font-size: .86rem; font-weight: 800; text-decoration: none; }
.cta-helper:hover { text-decoration: underline; }
.cta-plan[data-ready="false"]::before { content: "RETAILER CHECKPOINT · LINKS NOT CONNECTED"; display: block; margin-bottom: .65rem; color: var(--water); font-size: .72rem; font-weight: 800; letter-spacing: .09em; }
.verification { margin-top: 4rem; padding: 1rem 1.2rem; color: var(--muted); background: var(--foam); border-radius: 8px; font-size: .9rem; }
footer { display: flex; justify-content: space-between; gap: 1.25rem; flex-wrap: wrap; padding: 2.5rem max(1.25rem, calc((100vw - 1120px) / 2)); color: var(--muted); border-top: 1px solid var(--line); }
footer nav { display: flex; gap: .65rem 1.1rem; flex-wrap: wrap; }
footer a { color: var(--water); font-size: .86rem; font-weight: 700; text-decoration: none; }
footer a:hover { text-decoration: underline; }

@media (max-width: 720px) {
  .site-header { align-items: flex-start; flex-direction: column; gap: .25rem; }
  .site-header nav { margin-top: .5rem; }
  .guide-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 4rem; }
  .home-hero { grid-template-columns: 1fr; min-height: 0; padding: 3.5rem 0; }
  .home-hero-visual { min-height: 390px; }
  .home-hero-visual img { height: 390px; }
  .proof-strip { grid-template-columns: repeat(2, 1fr); margin-bottom: 4rem; }
  .proof-strip div:nth-child(2) { border-right: 0; }
  .proof-strip div:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
  .video-grid { grid-template-columns: 1fr; }
  .model-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .article-model-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .decision-map > div { grid-template-columns: 1fr; }
  .method-grid { grid-template-columns: 1fr; }
  .evidence-grid { grid-template-columns: 1fr; }
  .system-flow { grid-template-columns: 1fr; }
  .complete-cart { grid-template-columns: 1fr; }
  .upgrade-strip { grid-template-columns: 1fr; }
  .fit-grid { grid-template-columns: 1fr; }
  .buyer-pain-grid { grid-template-columns: 1fr; }
  .performance-chart .metric { grid-template-columns: 1fr; gap: .4rem; }
  .inspection-grid { grid-template-columns: repeat(2, 1fr); }
  .route-cards, .job-grid { grid-template-columns: 1fr; }
  .product-hero { margin-inline: -.25rem; padding: 1rem; border-radius: 12px; }
}