:root {
  --paper: #ffffff;
  --surface: #f1f3f4;
  --surface-soft: #f8faf9;
  --ink: #15181c;
  --text: #3f4750;
  --muted: #65707a;
  --line: #d8dde1;
  --energy: #1f7a5f;
  --energy-dark: #14523f;
  --energy-light: #e4f1ec;
  --steel: #265c83;
  --steel-light: #e3edf4;
  --solar: #b66d2d;
  --solar-light: #f8ecdd;
  --font-sans: 'Avenir Next', Avenir, 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
  --container: 1080px;
  --gutter: clamp(20px, 4vw, 36px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--text); background: var(--surface); font: 16px/1.65 var(--font-sans); -webkit-font-smoothing: antialiased; }
a { color: var(--steel); text-decoration: none; }
a:hover { color: var(--energy-dark); }
img, svg { display: block; max-width: 100%; }
h1, h2, h3 { margin: 0 0 .55em; color: var(--ink); line-height: 1.16; letter-spacing: -.025em; }
h1 { font-size: clamp(2.15rem, 4.5vw, 3.5rem); }
h2 { font-size: clamp(1.65rem, 3vw, 2.35rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1.1em; }
.container { width: min(calc(100% - 2 * var(--gutter)), var(--container)); margin-inline: auto; }
.narrow { max-width: 780px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0, 0, 0, 0); }
.skip-link { position: fixed; top: 10px; left: 10px; z-index: 100; padding: 9px 14px; background: var(--ink); color: white; transform: translateY(-150%); }
.skip-link:focus { transform: none; }
.eyebrow { display: inline-block; color: var(--energy); font: 500 .75rem/1.3 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; }
.eyebrow.light { color: #bfe1d5; }
.button { display: inline-flex; min-height: 46px; align-items: center; justify-content: center; padding: 10px 24px; border: 1px solid var(--energy); background: var(--energy); color: white; font-weight: 500; transition: .16s ease; }
.button:hover { background: var(--energy-dark); color: white; text-decoration: none; }
.button-secondary { border-color: var(--line); background: transparent; color: var(--ink); }
.button-secondary:hover { border-color: var(--steel); background: var(--steel-light); color: var(--steel); }
.button-small { min-height: 36px; padding: 6px 17px; }

.site-header { position: sticky; top: 0; z-index: 20; border-bottom: 1px solid var(--line); background: rgba(255,255,255,.96); backdrop-filter: blur(12px); }
.header-inner { min-height: 72px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; gap: 11px; color: var(--ink); }
.brand:hover { color: var(--ink); }
.brand-logo { width: 215px; height: auto; }
.site-nav { display: flex; align-items: center; gap: clamp(18px, 3vw, 34px); }
.site-nav > a:not(.button) { color: var(--text); font-size: .92rem; }
.nav-toggle { display: none; width: 42px; height: 42px; padding: 10px; border: 0; background: transparent; }
.nav-toggle > span:not(.sr-only) { display: block; height: 2px; margin: 5px 0; background: var(--ink); }

.hero { border-bottom: 1px solid var(--line); background: linear-gradient(110deg, var(--paper) 0%, var(--paper) 68%, var(--energy-light) 100%); }
.hero-grid { min-height: 530px; }
.hero-copy { display: flex; max-width: 820px; min-height: 530px; flex-direction: column; justify-content: center; padding: 76px 0 70px; }
.hero-meta { display: flex; gap: 16px; align-items: center; margin-bottom: 27px; }
.hero-meta::after { order: 1; width: 34px; height: 1px; background: var(--line); content: ''; }
.hero-meta .region { order: 2; color: var(--muted); font: .72rem var(--font-mono); letter-spacing: .12em; text-transform: uppercase; }
.hero h1 { max-width: 720px; font-size: clamp(2.35rem, 4.2vw, 3.55rem); }
.hero .lede { max-width: 650px; color: var(--muted); font-size: 1.2rem; line-height: 1.5; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0 28px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { padding: 4px 10px; border: 1px solid var(--line); background: var(--surface-soft); color: var(--text); font: .74rem var(--font-mono); }
.tag.energy { border-color: #9ccdbb; background: var(--energy-light); color: var(--energy-dark); }
.tag.solar { border-color: #e5c6a4; background: var(--solar-light); color: #8c521d; }
.tag.steel { border-color: #b8cfdd; background: var(--steel-light); color: var(--steel); }
.section { padding: clamp(76px, 9vw, 116px) 0; }
.section-white { background: var(--paper); }
.section-heading { display: grid; grid-template-columns: .9fr 1.1fr; gap: 60px; align-items: end; margin-bottom: 48px; }
.section-heading p { max-width: 600px; color: var(--muted); font-size: 1.1rem; }
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.service-card { min-height: 280px; padding: 28px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper); color: var(--text); transition: .18s ease; }
.service-card:hover { position: relative; z-index: 1; background: var(--surface-soft); color: var(--text); box-shadow: 0 5px 22px rgba(21,24,28,.09); transform: translateY(-3px); }
.service-card .number { color: var(--energy); font: 500 .76rem var(--font-mono); }
.service-card h3 { margin-top: 40px; }
.service-card p { color: var(--muted); }
.service-card .arrow { display: block; margin-top: 24px; color: var(--steel); font-family: var(--font-mono); }
.approach { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px, 8vw, 100px); align-items: center; }
.approach-panel { padding: 40px; border-left: 4px solid var(--energy); background: var(--paper); box-shadow: 0 1px 7px rgba(21,24,28,.07); }
.approach-list { margin: 0; padding: 0; list-style: none; columns: 2; }
.approach-list li { break-inside: avoid; padding: 9px 0 9px 20px; border-bottom: 1px solid var(--line); position: relative; }
.approach-list li::before { position: absolute; left: 0; color: var(--energy); content: '＋'; }
.principle-band { padding: 58px 0; background: var(--steel); color: white; }
.principle-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 46px; }
.principle-grid strong { display: block; margin-bottom: 8px; color: white; font: 500 .85rem var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }

.markdown-home { border-bottom: 1px solid var(--line); background: linear-gradient(110deg, var(--paper) 0%, var(--paper) 78%, var(--energy-light) 100%); }
.home-markdown { max-width: 880px; padding-top: clamp(70px, 9vw, 108px); padding-bottom: clamp(80px, 10vw, 128px); }
.home-markdown > p:first-child { margin-bottom: 24px; color: var(--energy); font: 500 .75rem/1.3 var(--font-mono); letter-spacing: .12em; text-transform: uppercase; }
.home-markdown > h1 { max-width: 760px; }
.home-markdown > h1 + p { max-width: 720px; color: var(--muted); font-size: 1.2rem; line-height: 1.55; }
.home-markdown > h1 + p + p { display: flex; flex-wrap: wrap; gap: 10px; margin: 26px 0; font-size: 0; }
.home-markdown > h1 + p + p a { display: inline-flex; min-height: 46px; align-items: center; padding: 10px 24px; border: 1px solid var(--energy); background: var(--energy); color: white; font-weight: 500; }
.home-markdown > h1 + p + p a { font-size: 1rem; }
.home-markdown > h1 + p + p a + a { border-color: var(--line); background: white; color: var(--ink); }
.home-markdown > hr { margin: clamp(60px, 8vw, 94px) 0; border-color: var(--line); }
.home-markdown > h2 { margin-bottom: 24px; }
.home-markdown > h3 { margin-top: 38px; padding-top: 26px; border-top: 1px solid var(--line); }
.home-markdown > h3 a { color: var(--ink); }
.home-markdown > h3 a::after { margin-left: 8px; color: var(--energy); content: '→'; }
.home-markdown > p, .home-markdown > ul, .home-markdown > ol { max-width: 740px; }
.home-markdown li { margin-bottom: 7px; }
.home-markdown li::marker { color: var(--energy); }
.home-markdown table { display: grid; margin: 28px 0 8px; border-top: 1px solid var(--line); border-left: 1px solid var(--line); border-collapse: collapse; }
.home-markdown thead { display: none; }
.home-markdown tbody { display: grid; grid-template-columns: repeat(3, 1fr); }
.home-markdown tr { position: relative; display: flex; min-height: 310px; flex-direction: column; padding: 26px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--paper); cursor: pointer; transition: .18s ease; }
.home-markdown tr:hover { z-index: 1; background: var(--surface-soft); box-shadow: 0 5px 22px rgba(21,24,28,.09); transform: translateY(-3px); }
.home-markdown tr:focus-within { z-index: 1; outline: 2px solid var(--energy); outline-offset: -2px; }
.home-markdown td { display: block; padding: 0; }
.home-markdown td:first-child { display: flex; height: 96px; align-items: center; margin-bottom: 22px; }
.home-markdown td:first-child img { width: auto; max-width: min(100%, 175px); max-height: 96px; object-fit: contain; }
.home-markdown td:nth-child(2) { margin-bottom: 14px; color: var(--ink); font-size: 1.15rem; font-weight: 600; line-height: 1.25; }
.home-markdown td:nth-child(2) a { color: var(--ink); }
.home-markdown td:nth-child(2) a::before { position: absolute; inset: 0; content: ''; }
.home-markdown td:nth-child(2) a::after { margin-left: 8px; color: var(--energy); content: '→'; }
.home-markdown td:nth-child(3) { color: var(--muted); }

.page-hero { padding: clamp(80px, 12vw, 142px) 0 clamp(60px, 8vw, 96px); border-bottom: 1px solid var(--line); background: var(--paper); }
.page-hero h1 { margin-top: 20px; font-size: clamp(2.25rem, 4.5vw, 3.6rem); }
.page-hero .lede { max-width: 700px; color: var(--muted); font-size: 1.25rem; }
.page-content { padding: clamp(60px, 9vw, 100px) 0; background: var(--surface-soft); }
.prose > h2 { margin-top: 2.7em; padding-top: 1.2em; border-top: 1px solid var(--line); }
.prose > h2:first-child { margin-top: 0; padding-top: 0; border: 0; }
.prose h3 { margin-top: 2.2em; }
.prose p, .prose li { max-width: 720px; }
.prose ul, .prose ol { padding-left: 1.35em; }
.prose li { margin-bottom: .45em; }
.prose li::marker { color: var(--energy); }
.prose strong { color: var(--ink); }
.prose table { width: 100%; margin: 32px 0; border-collapse: collapse; background: var(--paper); }
.prose th, .prose td { padding: 14px 0; border-bottom: 1px solid var(--line); text-align: left; vertical-align: baseline; }
.prose th:last-child, .prose td:last-child { width: 220px; text-align: right; white-space: nowrap; }
.prose th { color: var(--ink); font: 600 .82rem var(--font-mono); letter-spacing: .08em; text-transform: uppercase; }
.prose td:last-child { color: var(--energy-dark); font: 600 1.05rem var(--font-mono); }
.contact-band { position: relative; padding: 72px 0; background: var(--energy-dark); color: #dfeee9; }
.contact-band::before { position: absolute; top: 0; right: 0; left: 0; height: 12px; background: linear-gradient(90deg, var(--steel), #2f78a8 52%, var(--steel-light)); content: ''; }
.contact-band h2 { color: white; }
.contact-band p { max-width: 650px; }
.contact-grid { display: grid; grid-template-columns: 1.4fr .6fr; gap: 60px; align-items: center; }
.contact-portrait { display: flex; gap: 18px; align-items: center; max-width: 620px; margin: 28px 0 0; }
.contact-portrait img { width: 116px; height: 116px; border: 2px solid rgba(255,255,255,.24); border-radius: 50%; object-fit: cover; }
.contact-portrait figcaption { color: #dfeee9; line-height: 1.35; }
.contact-portrait strong { display: block; margin: 5px 0; color: white; font-size: 1.05rem; }
.contact-portrait span { display: block; color: #bfe1d5; }
.contact-actions { display: grid; gap: 16px; justify-items: start; }
.button-light { border-color: white; background: white; color: var(--energy-dark); }
.button-light:hover { border-color: #d9eee7; background: #d9eee7; color: var(--energy-dark); }
.button-outline-light { border-color: rgba(255,255,255,.72); background: transparent; color: white; }
.button-outline-light:hover { border-color: white; background: rgba(255,255,255,.12); color: white; }
.contact-link { color: white; font: 500 1.12rem var(--font-mono); }
.site-footer { padding: 70px 0 24px; background: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.4fr .8fr .8fr; gap: 60px; }
.footer-grid p { margin-top: 18px; color: var(--muted); }
.footer-brand p { max-width: 400px; }
.brand-footer { margin-bottom: 16px; }
.brand-footer .brand-logo { width: 270px; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; margin-top: 56px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font: .7rem var(--font-mono); }

@media (max-width: 850px) {
  .nav-toggle { display: block; }
  .site-nav { position: absolute; top: 72px; right: 0; left: 0; display: none; padding: 24px var(--gutter); border-bottom: 1px solid var(--line); background: white; align-items: stretch; flex-direction: column; }
  .site-nav.is-open { display: flex; }
  .hero-copy { padding: 70px 0; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .home-markdown tbody { grid-template-columns: repeat(2, 1fr); }
  .section-heading, .approach, .contact-grid, .footer-grid { grid-template-columns: 1fr; }
  .principle-grid { grid-template-columns: 1fr; gap: 28px; }
  .contact-actions { justify-items: start; }
}

@media (max-width: 560px) {
  .brand-logo { width: 190px; }
  .hero-copy { padding: 58px 0; }
  .service-grid { grid-template-columns: 1fr; }
  .home-markdown tbody { grid-template-columns: 1fr; }
  .home-markdown tr { min-height: 0; }
  .contact-portrait { align-items: flex-start; flex-direction: column; }
  .prose table { font-size: .94rem; }
  .prose th:last-child, .prose td:last-child { width: auto; padding-left: 14px; }
  .service-card { min-height: 230px; }
  .approach-list { columns: 1; }
  .footer-bottom { flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; }
}