:root {
  --bg: #f2f6f6;
  --surface: #fdfefe;
  --surface-strong: #0d2034;
  --text: #10212f;
  --muted: #5f6f7f;
  --line: #c9d6de;
  --accent: #1a8b74;
  --accent-soft: #9ed8cc;
  --panel: #e6f0ee;
  --shadow: 0 18px 40px rgba(16, 33, 47, 0.08);
  --max-width: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Trebuchet MS", "Segoe UI", sans-serif;
  background:
    linear-gradient(180deg, rgba(26, 139, 116, 0.06), rgba(242, 246, 246, 0.94)),
    radial-gradient(circle at 0% 0%, rgba(158, 216, 204, 0.65), transparent 42%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(242, 246, 246, 0.9);
  border-bottom: 1px solid rgba(201, 214, 222, 0.8);
}

.nav-shell,
.footer-grid,
.hero-grid,
.contact-grid,
.dual-panel {
  display: grid;
  gap: 1.5rem;
}

.nav-shell {
  grid-template-columns: auto 1fr auto;
  align-items: center;
  padding: 1rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  font-weight: 700;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 2.5rem;
  aspect-ratio: 1;
  border-radius: 0.7rem;
  background: linear-gradient(135deg, var(--surface-strong), #1a8b74);
  color: #fff;
  font-size: 0.95rem;
}

.nav-links {
  display: inline-flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.25rem;
  color: var(--muted);
}

.nav-links a[aria-current="page"] {
  color: var(--text);
  font-weight: 600;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2.9rem;
  padding: 0.8rem 1.25rem;
  border-radius: 0.75rem;
  border: 1px solid transparent;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}

.button-outline {
  background: transparent;
  border-color: var(--surface-strong);
  color: var(--surface-strong);
}

.hero-section,
.page-hero {
  padding: 4.5rem 0 3rem;
}

.hero-grid {
  grid-template-columns: 1.3fr 1fr;
  align-items: center;
}

.eyebrow {
  margin: 0 0 0.7rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.1;
}

h1 {
  font-size: clamp(2.4rem, 5vw, 4.6rem);
  max-width: 12ch;
}

h2 {
  font-size: clamp(1.75rem, 3vw, 2.8rem);
}

h3 {
  font-size: 1.2rem;
}

.lead,
.section-heading p,
.page-hero p {
  max-width: 62ch;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 2rem 0 1.2rem;
}

.keyword-ribbon {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.keyword-ribbon span,
.panel-card,
.info-card,
.product-card,
.category-block,
.detail-card,
.contact-form,
.contact-note,
.feature-sheet {
  background: rgba(253, 254, 254, 0.88);
  border: 1px solid rgba(201, 214, 222, 0.95);
  border-radius: 1rem;
  box-shadow: var(--shadow);
}

.keyword-ribbon span {
  padding: 0.65rem 0.9rem;
  font-weight: 600;
  color: var(--surface-strong);
}

.panel-card,
.info-card,
.product-card,
.category-block,
.detail-card,
.contact-form,
.contact-note,
.feature-sheet {
  padding: 1.4rem;
}

.media-panel {
  padding: 0;
  overflow: hidden;
}

.media-panel img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.media-copy {
  padding: 1.35rem 1.5rem 1.5rem;
}

.panel-kicker {
  margin-top: 0;
  color: var(--muted);
  font-weight: 600;
}

.part-list,
.card-grid,
.product-grid,
.stack-grid,
.product-detail-list {
  display: grid;
  gap: 1.25rem;
}

.section {
  padding: 3.5rem 0;
}

.section-heading {
  margin-bottom: 2rem;
}

.three-up,
.product-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.contrast-band {
  background: linear-gradient(135deg, rgba(13, 32, 52, 0.04), rgba(26, 139, 116, 0.1));
}

.dual-panel {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.page-main {
  min-height: calc(100vh - 16rem);
}

.stack-grid,
.product-detail-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.detail-card ul,
.contact-note ul {
  margin: 1rem 0 0;
  padding-left: 1.1rem;
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.spec-table th,
.spec-table td {
  padding: 0.8rem 0.9rem;
  border-bottom: 1px solid rgba(201, 214, 222, 0.85);
  text-align: left;
  vertical-align: top;
}

.spec-table th {
  width: 32%;
  color: var(--muted);
  font-weight: 600;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.gallery-grid img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 0.8rem;
  border: 1px solid rgba(201, 214, 222, 0.85);
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.pagination a {
  min-width: 2.6rem;
  min-height: 2.6rem;
  padding: 0.6rem 0.85rem;
  border-radius: 0.7rem;
  border: 1px solid var(--line);
  background: rgba(253, 254, 254, 0.92);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
}

.pagination a.current {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.crumbs span {
  color: var(--muted);
}

.product-card img,
.detail-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 0.8rem;
  margin-bottom: 1rem;
  border: 1px solid rgba(201, 214, 222, 0.85);
}

.prose-layout {
  display: grid;
  gap: 1rem;
  max-width: 64rem;
}

.contact-grid {
  grid-template-columns: 1.2fr 0.8fr;
  align-items: start;
}

.contact-form {
  display: grid;
  gap: 1rem;
}

.contact-form label {
  display: grid;
  gap: 0.45rem;
  font-weight: 600;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border-radius: 0.75rem;
  border: 1px solid var(--line);
  font: inherit;
  background: #fff;
}

.dark-band {
  background: var(--surface-strong);
  color: #f8fbfc;
}

.cta-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.dark-band .eyebrow,
.dark-band p {
  color: rgba(248, 251, 252, 0.82);
}

.site-footer {
  padding: 2.5rem 0;
  border-top: 1px solid rgba(201, 214, 222, 0.8);
}

.footer-grid {
  grid-template-columns: 1.2fr 0.8fr 0.9fr;
}

.footer-grid h3 {
  margin-bottom: 0.75rem;
}

.footer-grid a,
.footer-grid p {
  display: block;
  margin: 0.35rem 0;
  color: var(--muted);
}

.compact-footer {
  grid-template-columns: 1fr auto;
  align-items: center;
}

@media (max-width: 920px) {
  .nav-shell,
  .hero-grid,
  .contact-grid,
  .footer-grid,
  .compact-footer,
  .dual-panel,
  .stack-grid,
  .product-detail-list,
  .three-up,
  .product-grid {
    grid-template-columns: 1fr;
  }

  .nav-links {
    justify-content: flex-start;
  }

  .cta-shell {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .site-header {
    position: static;
  }

  .hero-section,
  .page-hero,
  .section {
    padding: 2.8rem 0;
  }

  h1 {
    max-width: none;
  }
}