:root {
  --bg: #ffffff;
  --bg-alt: #f4f6f7;
  --bg-dark: #1c2e3f;          /* logo navy */
  --ink: #1c2e3f;
  --ink-2: #3d4f60;
  --muted: #6b7a85;
  --line: #e1e6ea;
  --accent: #2f6675;           /* logo teal */
  --accent-2: #a3bcc4;          /* logo light teal */
  --warm: #e8b87a;             /* logo sand */
  --warm-2: #f3d6b3;
  --accent-ink: #ffffff;
  --radius: 4px;
  --maxw: 1180px;
  --font-sans: 'Commissioner', system-ui, -apple-system, Segoe UI, sans-serif;
  --font-display: 'Lexend', 'Commissioner', system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  font-weight: 300;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
strong, b { font-weight: 600; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(28, 46, 63, 0.92);
  backdrop-filter: saturate(150%) blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 80px; }
.brand { display: flex; align-items: center; padding: 8px 0; }
.brand-logo { height: 65px; width: auto; display: block; }
.brand-logo-footer { height: 56px; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a { color: rgba(255,255,255,0.78); font-size: 14.5px; font-weight: 500; }
.nav-links a:hover { color: #ffffff; }
.lang {
  font-size: 12px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--muted); padding: 4px 8px;
  border: 1px solid var(--line); border-radius: var(--radius);
}
.lang-toggle {
  display: inline-flex; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden;
}
.lang-toggle a {
  padding: 6px 10px; font-size: 12px; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--muted); background: transparent;
  border-right: 1px solid var(--line);
  transition: 0.15s ease;
}
.lang-toggle a:last-child { border-right: 0; }
.lang-toggle a.active { background: var(--ink); color: #fff; }
.lang-toggle a:not(.active):hover { color: var(--ink); background: var(--bg-alt); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px; border-radius: var(--radius);
  font-weight: 600; font-size: 14.5px; line-height: 1;
  border: 1px solid transparent; cursor: pointer;
  transition: 0.15s ease;
}
.btn-sm { padding: 9px 14px; font-size: 13.5px; }
.btn-primary { background: var(--ink); color: #fff; }
.btn-primary:hover { background: var(--accent); }
.btn-ghost { color: var(--ink); border-color: var(--line); background: #fff; }
.btn-ghost:hover { border-color: var(--ink); }

/* Hero */
.hero { position: relative; overflow: hidden; padding: 96px 0 80px; }
.hero-bg {
  position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(232,184,122,0.22), transparent 60%),
    radial-gradient(900px 500px at 0% 10%, rgba(47,102,117,0.16), transparent 70%),
    linear-gradient(180deg, #f8fafb 0%, #ffffff 100%);
}
.hero-inner { max-width: 920px; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em; font-size: 12px; font-weight: 600;
  color: var(--accent); margin: 0 0 18px;
}
.eyebrow-light { color: var(--accent-2); }
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(38px, 5.6vw, 68px);
  line-height: 1.05; letter-spacing: -0.02em;
  margin: 0 0 22px; font-weight: 600;
}
.lede { font-size: 19px; color: var(--ink-2); max-width: 700px; margin: 0 0 32px; }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 56px; }
.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 24px; margin: 0; padding: 28px 0 0;
  border-top: 1px solid var(--line);
}
.hero-deco {
  position: absolute; top: 80px; right: -40px;
  width: 320px; height: 360px; z-index: -1;
  opacity: 0.85; pointer-events: none;
}
.hero-deco svg { width: 100%; height: 100%; }
@media (max-width: 900px) { .hero-deco { display: none; } }
.hero-stats dt { font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 6px; }
.hero-stats dd { margin: 0; font-family: var(--font-display); font-weight: 600; font-size: 28px; letter-spacing: -0.01em; }

/* Equation block */
.equation { background: var(--bg-alt); padding: 56px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.eq-row {
  display: flex; align-items: center; justify-content: center;
  gap: 24px; flex-wrap: wrap;
}
.eq-item { display: flex; flex-direction: column; align-items: center; gap: 12px; min-width: 160px; }
.eq-icon {
  width: 64px; height: 64px; border-radius: var(--radius);
  background: #fff; border: 1px solid var(--line);
  display: grid; place-items: center; font-size: 28px;
  color: var(--accent);
}
.eq-result .eq-icon { background: var(--ink); color: #fff; border-color: var(--ink); }
.eq-label { margin: 0; font-family: var(--font-display); font-weight: 600; font-size: 14.5px; text-align: center; max-width: 180px; }
.eq-op { font-family: var(--font-display); font-size: 28px; color: var(--accent); font-weight: 500; }

/* Sections */
.section { padding: 96px 0; border-top: 1px solid var(--line); }
/* Decorative patterns — subtle. Surface base is #F4F6F7, alternating with white. */
.bg-hex {
  background-color: var(--bg-alt);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='80' height='139' viewBox='0 0 80 139'><g fill='none' stroke='%231c2e3f' stroke-opacity='0.04' stroke-width='1'><polygon points='40,2 76,23 76,67 40,88 4,67 4,23'/><polygon points='40,72 76,93 76,137 40,158 4,137 4,93'/></g></svg>");
}
.bg-topo {
  background-color: var(--bg);
  background-image:
    radial-gradient(800px 400px at 100% 0%, rgba(47,102,117,0.05), transparent 60%),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='600' height='600' viewBox='0 0 600 600'><g fill='none' stroke='%232f6675' stroke-opacity='0.04' stroke-width='1'><circle cx='300' cy='300' r='80'/><circle cx='300' cy='300' r='140'/><circle cx='300' cy='300' r='200'/><circle cx='300' cy='300' r='260'/></g></svg>");
  background-position: right top, center;
}
.bg-grid {
  background-color: var(--bg-alt);
  background-image:
    linear-gradient(rgba(28,46,63,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(28,46,63,0.03) 1px, transparent 1px);
  background-size: 32px 32px;
}
.bg-diagonal {
  background-color: var(--bg-alt);
  background-image: repeating-linear-gradient(135deg, rgba(232,184,122,0.04) 0 2px, transparent 2px 28px);
}
.bg-fixed { background-attachment: fixed; }

/* Section default — solid bg-alt for legacy markup that hasn't migrated to patterns yet */
.section-alt { background: var(--bg-alt); }
.section-alt.bg-hex,
.section-alt.bg-topo,
.section-alt.bg-grid,
.section-alt.bg-diagonal { background-color: var(--bg-alt); }

/* Parallax hero element — applied via JS */
.parallax { will-change: transform; }
.section-dark { background: var(--bg-dark); color: #e8ece9; border-top: 0; }
.section-dark .section-title { color: #fff; }
.section-dark .section-lede { color: #b9c2bd; }

.section-title {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.4vw, 42px);
  line-height: 1.15; letter-spacing: -0.02em;
  margin: 0 0 18px; font-weight: 600;
  max-width: 900px;
}
.section-lede { font-size: 17px; color: var(--ink-2); max-width: 760px; margin: 0 0 24px; }
.section-lede + .grid, .section-lede + .compare, .section-lede + .portfolio-feature { margin-top: 36px; }

/* Grids */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Card */
.card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 28px;
  transition: 0.2s ease;
}
.section-alt .card { background: #fff; }
.card:hover { border-color: var(--ink); transform: translateY(-2px); }
.card-icon {
  width: 40px; height: 40px; border-radius: var(--radius);
  background: var(--bg-alt); color: var(--accent);
  display: grid; place-items: center; font-size: 20px;
  margin-bottom: 18px;
}
.card h3 { margin: 0 0 8px; font-family: var(--font-display); font-size: 18px; font-weight: 600; }
.card p { margin: 0; color: var(--ink-2); font-size: 15px; }

/* Portfolio feature */
.portfolio-feature {
  display: grid; grid-template-columns: 1.2fr 1fr;
  gap: 32px; align-items: center;
  margin: 8px 0 48px;
}
.portfolio-image {
  aspect-ratio: 16/9;
  background:
    linear-gradient(135deg, #1c2e3f 0%, #2f6675 55%, #e8b87a 100%);
  border-radius: var(--radius); display: grid; place-items: center;
  color: rgba(255,255,255,0.6);
}
.image-placeholder {
  font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase;
  font-family: var(--font-display);
}
.portfolio-meta h3 { margin: 8px 0 12px; font-family: var(--font-display); font-size: 24px; font-weight: 600; }
.portfolio-meta p { margin: 0; color: var(--ink-2); font-size: 16px; }

/* Regions */
.regions .region {
  padding: 24px; border: 1px solid var(--line); background: #fff;
  border-radius: var(--radius);
}
.region h4 { margin: 0 0 8px; font-family: var(--font-display); font-size: 17px; font-weight: 600; }
.region p { margin: 0; color: var(--ink-2); font-size: 14.5px; }

/* Compare */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.compare-col {
  border: 1px solid var(--line); padding: 32px; border-radius: var(--radius);
  background: #fff;
}
.compare-col.next { background: var(--ink); color: #e8ece9; border-color: var(--ink); }
.compare-col h3 { margin: 8px 0 18px; font-family: var(--font-display); font-size: 22px; font-weight: 600; }
.compare-col ul { padding-left: 18px; margin: 0 0 16px; }
.compare-col li { margin: 8px 0; font-size: 15px; }
.compare-col.legacy li { color: var(--ink-2); }
.compare-intro { font-size: 14.5px; color: var(--ink-2); margin: 16px 0 8px; }
.compare-col.next .compare-intro { color: #b9c2bd; }
.compare-foot { font-size: 14.5px; color: var(--ink-2); margin: 12px 0 0; padding-top: 16px; border-top: 1px solid var(--line); }
.compare-col.next .compare-foot { color: #b9c2bd; border-top-color: rgba(255,255,255,0.15); }
.tag {
  display: inline-block; font-size: 11.5px; text-transform: uppercase;
  letter-spacing: 0.14em; font-weight: 700; color: var(--muted);
  margin: 0;
}
.tag-accent { color: var(--accent-2); }

/* Team */
.team .member {
  background: #fff; border: 1px solid var(--line);
  padding: 24px; border-radius: var(--radius);
  position: relative;
}
.team.founders .member { background: #fff; }
.member-photo {
  aspect-ratio: 1/1; background: linear-gradient(135deg, #e3e6e2, #c7d0ca);
  border-radius: var(--radius); margin-bottom: 16px;
  overflow: hidden;
  display: grid; place-items: center;
  color: var(--ink); font-family: var(--font-display);
  font-weight: 600; font-size: 22px; letter-spacing: 0.04em;
}
.member-photo img {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.member h4 { margin: 0 0 4px; font-family: var(--font-display); font-size: 17px; }
.member .role { margin: 0 0 12px; font-size: 12px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--accent); font-weight: 600; }
.member p { margin: 0; font-size: 14.5px; color: var(--ink-2); }
.linkedin {
  position: absolute; top: 20px; right: 20px;
  width: 28px; height: 28px; border-radius: var(--radius);
  background: var(--bg-alt); color: var(--ink-2);
  display: grid; place-items: center;
  font-family: var(--font-display); font-weight: 700; font-size: 12px;
  font-style: italic;
  transition: 0.15s ease;
}
.linkedin:hover { background: var(--accent); color: #fff; }

/* Posts */
.posts .post {
  border: 1px solid var(--line);
  border-radius: var(--radius); background: #fff;
  display: flex; flex-direction: column; gap: 8px;
  overflow: hidden;
}
.post-img {
  aspect-ratio: 16/10; overflow: hidden;
  background: var(--bg-alt); margin: 0 0 4px;
}
.post-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.posts .post > :not(.post-img) { padding-left: 24px; padding-right: 24px; }
.posts .post > .post-date { padding-top: 20px; }
.posts .post > a { padding-bottom: 24px; }
.post-date { margin: 0; font-size: 12px; text-transform: uppercase; letter-spacing: 0.1em; color: var(--muted); }
.post h3 { margin: 4px 0 4px; font-family: var(--font-display); font-size: 18px; font-weight: 600; line-height: 1.3; }
.post p { margin: 0 0 4px; color: var(--ink-2); font-size: 14.5px; }
.post a { color: var(--accent); font-weight: 600; font-size: 14px; margin-top: auto; }

/* Contact */
.contact-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  align-items: start;
}
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.contact-form label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: #b9c2bd; }
.contact-form input, .contact-form textarea {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.18);
  color: #fff; padding: 14px 16px; border-radius: var(--radius);
  font: inherit; font-size: 15px;
}
.contact-form input:focus, .contact-form textarea:focus {
  outline: none; border-color: var(--accent-2);
}
.contact-form button { align-self: flex-start; background: #fff; color: var(--ink); }
.contact-form button:hover { background: var(--accent-2); }

/* Footer */
.footer { background: var(--bg-dark); color: #b9c2bd; padding: 48px 0; }
.footer-inner { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 24px; align-items: center; }
.footer-inner > div:first-child { display: flex; align-items: center; gap: 14px; }
.footer-inner p { margin: 0; font-size: 13.5px; }
.footer-links { display: flex; gap: 22px; justify-content: center; }
.footer-links a { font-size: 14px; }
.footer-links a:hover { color: #fff; }
.copyright { text-align: right; font-size: 13px; }

/* Site detail pages */
.site-hero { padding: 80px 0 56px; }
.site-hero-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; margin-top: 24px; }
.site-hero h1 { font-family: var(--font-display); font-size: clamp(48px, 6vw, 80px); letter-spacing: -0.02em; line-height: 1; margin: 12px 0 18px; font-weight: 500; }
.site-hero-img {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, #1c2e3f 0%, #2f6675 60%, #e8b87a 100%);
  border-radius: var(--radius); display: grid; place-items: center;
  color: rgba(255,255,255,0.6); overflow: hidden;
}
.site-hero-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.site-hero-img.bakki { background: linear-gradient(135deg, #2c3a48 0%, #5a4030 60%, #c47a4a 100%); }
.site-hero-img.varkaus { background: linear-gradient(135deg, #1c2e3f 0%, #406b6e 60%, #8aa9a8 100%); }

/* Specs grid */
.specs .spec {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 22px;
}
.specs .spec dt { font-size: 11px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); margin: 0 0 6px; }
.specs .spec dd { margin: 0; font-family: var(--font-display); font-weight: 500; font-size: 22px; letter-spacing: -0.01em; }

/* Site narrative grid */
.site-narrative { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.site-bullets { padding-left: 0; list-style: none; margin: 24px 0 0; }
.site-bullets li { padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 15px; color: var(--ink-2); }
.site-bullets li:last-child { border-bottom: 0; }
.site-bullets strong { color: var(--ink); font-weight: 600; }
.site-map { height: 420px; border-radius: var(--radius); background: #eaf0f3; border: 1px solid var(--line); }

/* Timeline */
.timeline { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-top: 32px; position: relative; }
.timeline::before {
  content: ''; position: absolute; top: 24px; left: 5%; right: 5%;
  height: 1px; background: var(--line); z-index: 0;
}
.timeline-step { background: #fff; border: 1px solid var(--line); padding: 24px; border-radius: var(--radius); position: relative; z-index: 1; }
.timeline-step .num {
  display: inline-grid; place-items: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--accent); color: #fff;
  font-family: var(--font-display); font-weight: 600; font-size: 14px;
  margin-bottom: 16px;
}
.timeline-step h4 { font-family: var(--font-display); font-size: 16px; margin: 0 0 6px; font-weight: 600; }
.timeline-step p { margin: 0; font-size: 14px; color: var(--ink-2); }

/* Partner / customer strip */
.partners {
  display: grid; grid-template-columns: repeat(6, 1fr);
  gap: 16px; align-items: center;
  padding: 32px; border: 1px dashed var(--line);
  border-radius: var(--radius); background: #fff;
  margin-top: 32px;
}
.partners .partner {
  aspect-ratio: 5/2; background: var(--bg-alt);
  border-radius: 4px; display: grid; place-items: center;
  color: var(--muted); font-family: var(--font-display);
  font-weight: 600; font-size: 12px; letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Sustainability KPIs + cert strip */
.kpis .kpi {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 24px;
}
.kpis .kpi dt { font-size: 11.5px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); margin: 0 0 8px; }
.kpis .kpi dd { margin: 0 0 8px; font-family: var(--font-display); font-weight: 600; font-size: 26px; letter-spacing: -0.01em; }
.kpis .kpi p { margin: 0; font-size: 13.5px; color: var(--ink-2); }
.cert-strip {
  display: flex; flex-wrap: wrap; gap: 12px; align-items: center;
  margin: 36px 0 0; padding: 24px; border: 1px dashed var(--line);
  border-radius: var(--radius); background: #fff;
}
.cert-strip > span:first-child { font-size: 12px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--muted); margin-right: 8px; }
.cert-strip .cert {
  font-family: var(--font-display); font-weight: 600;
  font-size: 13px; letter-spacing: 0.02em;
  padding: 6px 12px; border: 1px solid var(--line);
  border-radius: 999px; color: var(--ink);
}

/* Accessibility */
.skip-link {
  position: absolute; top: -40px; left: 12px; z-index: 100;
  background: var(--ink); color: #fff; padding: 10px 14px;
  border-radius: var(--radius); font-size: 14px; font-weight: 600;
}
.skip-link:focus { top: 12px; }
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px; border-radius: 2px;
}

/* Active nav state */
.nav-links a.active { color: #ffffff; }
.nav-links a.active::after {
  content: ''; display: block; height: 2px; background: var(--warm);
  margin-top: 4px;
}

/* Reveal-on-scroll */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto !important; }
}

/* Responsive */
@media (max-width: 900px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
  .compare { grid-template-columns: 1fr; }
  .contact-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-inner { grid-template-columns: 1fr; text-align: center; }
  .footer-inner > div:first-child { justify-content: center; }
  .footer-links { justify-content: center; }
  .copyright { text-align: center; }
  .hero-stats { grid-template-columns: 1fr 1fr; gap: 20px; }
  .nav-links a:not(.btn) { display: none; }
  .nav-links .lang { display: none; }
  .portfolio-feature { grid-template-columns: 1fr; }
  .eq-op { display: none; }
  .site-hero-grid { grid-template-columns: 1fr; }
  .site-narrative { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr 1fr; }
  .timeline::before { display: none; }
  .partners { grid-template-columns: repeat(3, 1fr); }
  .specs.grid-4 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .section { padding: 64px 0; }
  .hero { padding: 64px 0 56px; }
}

/* Site detail link in DC cards */
.dc-link { color: var(--accent); font-weight: 600; font-size: 14px; margin-top: 4px; align-self: flex-start; }
.dc-link:hover { text-decoration: underline; }

/* Hide Leaflet attribution / zoom controls bottom strip */
.leaflet-bottom { visibility: hidden; }

/* Hero photographic background — building is bottom-right, anchor there so cropping eats top/left */
.hero-bg picture, .hero-bg picture img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: bottom right; display: block; }
.hero-bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0.55) 0%, rgba(255,255,255,0.85) 60%, #ffffff 100%);
}
.hero-bg { background: none; }

/* Lang toggle styled for dark navy nav */
.nav .lang-toggle { border-color: rgba(255,255,255,0.18); }
.nav .lang-toggle a { color: rgba(255,255,255,0.6); border-right-color: rgba(255,255,255,0.12); }
.nav .lang-toggle a.active { background: rgba(255,255,255,0.12); color: #fff; }
.nav .lang-toggle a:not(.active):hover { color: #fff; background: rgba(255,255,255,0.05); }