:root {
  color-scheme: dark;
  --bg: #0a0f14;
  --surface: #0f151e;
  --surface-raised: #132435;
  --border: #243447;
  --border-soft: #182638;
  --text: #e8ecef;
  --text-strong: #f0f4f8;
  --muted: #9aabb8;
  --accent: #c8e6f0;
  --focus: #7dd3fc;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
}

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

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 100;
  padding: 0.65rem 1rem;
  border-radius: 0.5rem;
  background: var(--accent);
  color: var(--bg);
  font-weight: 700;
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: translateY(0);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.site-header {
  border-bottom: 1px solid var(--border-soft);
}

.nav {
  display: flex;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 5vw;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: inline-flex;
  flex: 0 0 auto;
  border-radius: 0.75rem;
}

.logo-image {
  display: block;
  width: 130px;
  height: auto;
  border-radius: 0.75rem;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.5rem 1rem;
}

.nav-link {
  font-size: 0.9rem;
  color: var(--muted);
  transition: color 0.2s;
}

.nav-link:hover {
  color: var(--text-strong);
}

.nav-cta {
  flex: 0 0 auto;
  padding: 0.5rem 1rem;
  border: 1px solid #8aa4b0;
  border-radius: 999px;
  font-size: 0.85rem;
  transition: background-color 0.2s, color 0.2s;
}

.nav-cta:hover {
  background: #8aa4b0;
  color: var(--bg);
}

.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem 5vw;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 3rem;
  align-items: start;
}

.hero h1 {
  color: var(--text-strong);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.1;
}

.subtitle {
  margin-top: 1.5rem;
  color: #b1c4cc;
  font-size: 1.1rem;
  line-height: 1.5;
}

.subtitle strong {
  color: var(--accent);
  font-weight: 600;
}

.hero-desc {
  max-width: 560px;
  margin-top: 1.25rem;
  color: var(--muted);
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.5rem;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  min-height: 44px;
  padding: 0.9rem 1.6rem;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  font: inherit;
  font-weight: 700;
}

.btn-primary {
  border: 0;
  background: var(--accent);
  color: var(--bg);
  cursor: pointer;
  transition: transform 0.15s, background-color 0.15s;
}

.btn-primary:hover {
  background: #e1f3f8;
  transform: translateY(-2px);
}

.btn-secondary {
  border: 1px solid var(--muted);
  color: var(--text);
  transition: background-color 0.2s;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.07);
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2.5rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.badge-row span {
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
}

.hero-visual {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.map-card {
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: linear-gradient(135deg, #0f1a24 0%, var(--surface-raised) 100%);
}

.map-layer {
  margin-bottom: 0.5rem;
  padding: 0.6rem 0.75rem;
  border-radius: 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.map-layer:last-child {
  margin-bottom: 0;
}

.layer-ndvi {
  border: 1px solid rgba(34, 197, 94, 0.3);
  background: rgba(34, 197, 94, 0.12);
  color: #86efac;
}

.layer-ndwi {
  border: 1px solid rgba(14, 165, 233, 0.3);
  background: rgba(14, 165, 233, 0.12);
  color: #7dd3fc;
}

.layer-water {
  border: 1px solid rgba(6, 182, 212, 0.3);
  background: rgba(6, 182, 212, 0.12);
  color: #a5f3fc;
}

.layer-co2 {
  border: 1px solid rgba(245, 158, 11, 0.3);
  background: rgba(245, 158, 11, 0.12);
  color: #fcd34d;
}

.layer-polar {
  border: 1px solid rgba(168, 85, 247, 0.3);
  background: rgba(168, 85, 247, 0.12);
  color: #d8b4fe;
}

.metrics-card {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
}

.metric {
  padding: 1rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  background: var(--surface);
  text-align: center;
}

.metric .num {
  display: block;
  color: var(--text-strong);
  font-size: 1.3rem;
  font-weight: 800;
}

.metric .label {
  display: block;
  margin-top: 0.25rem;
  color: var(--muted);
  font-size: 0.75rem;
}

.data-note,
.form-note {
  color: var(--muted);
  font-size: 0.8rem;
}

.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 5rem 5vw;
  border-top: 1px solid var(--border-soft);
  scroll-margin-top: 1rem;
}

.section h2 {
  margin-bottom: 0.5rem;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  letter-spacing: -0.03em;
}

.section-lead {
  max-width: 700px;
  margin-bottom: 2rem;
  color: var(--muted);
}

.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  min-width: 760px;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th,
td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--surface);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

td {
  color: #c8d1d8;
}

tbody tr:last-child td {
  border-bottom: 0;
}

tbody tr:hover {
  background: rgba(255, 255, 255, 0.025);
}

.method-box {
  margin-top: 2.5rem;
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: 1rem;
  background: linear-gradient(135deg, var(--surface-raised) 0%, #0f1a24 100%);
}

.method-box h3 {
  margin-bottom: 0.75rem;
  color: var(--text-strong);
  font-size: 1.1rem;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-top: 1.5rem;
}

.cards article,
.indicator-card,
.tech-grid > div {
  border: 1px solid var(--border);
  background: var(--surface);
}

.cards article {
  padding: 1.5rem;
  border-radius: 1rem;
  transition: border-color 0.2s;
}

.cards article:hover {
  border-color: #4b6880;
}

.cards h3 {
  margin-bottom: 0.5rem;
  color: var(--text-strong);
  font-size: 1rem;
}

.cards p,
.indicator-card p,
.tech-grid p {
  color: var(--muted);
  font-size: 0.9rem;
}

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

.polar-map-info ul {
  padding-left: 1.25rem;
}

.polar-map-info li {
  padding: 0.6rem 0 0.6rem 0.2rem;
  border-bottom: 1px solid var(--border-soft);
  color: #c8d1d8;
  font-size: 0.95rem;
}

.polar-indicators {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.indicator-card {
  padding: 1.25rem;
  border-radius: 0.75rem;
}

.indicator-card h4 {
  margin-bottom: 0.4rem;
  color: var(--accent);
  font-size: 0.95rem;
}

.polar-compliance {
  margin-top: 2.5rem;
  padding: 1.25rem;
  border: 1px solid rgba(168, 85, 247, 0.3);
  border-radius: 0.75rem;
  background: rgba(168, 85, 247, 0.08);
}

.polar-compliance h3 {
  margin-bottom: 0.5rem;
  color: #d8b4fe;
  font-size: 1.05rem;
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.tech-grid > div {
  padding: 1.25rem;
  border-radius: 0.75rem;
}

.tech-grid h3 {
  margin-bottom: 0.25rem;
  color: var(--accent);
  font-size: 0.9rem;
}

.contact-form {
  display: flex;
  max-width: 560px;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.5rem;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-field label {
  color: #c8d1d8;
  font-size: 0.9rem;
  font-weight: 600;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  background: var(--surface);
  color: var(--text);
  font: inherit;
}

.contact-form textarea {
  min-height: 7rem;
  resize: vertical;
}

.contact-form button {
  align-self: flex-start;
}

.form-note a,
.footer a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.footer {
  padding: 3rem 5vw;
  border-top: 1px solid var(--border-soft);
  background: #070b10;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  max-width: 1100px;
  margin: 0 auto;
  gap: 2rem;
}

.footer ul {
  list-style: none;
}

.footer li {
  padding: 0.25rem 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.footer strong {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--text-strong);
}

.copyright {
  max-width: 1100px;
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-soft);
  color: #8193a1;
  font-size: 0.8rem;
}

@media (max-width: 900px) {
  .hero-grid,
  .polar-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 4rem;
  }
}

@media (max-width: 520px) {
  .nav {
    align-items: flex-start;
    flex-wrap: wrap;
  }

  .logo-image {
    width: 100px;
  }

  .nav-links {
    width: 100%;
    justify-content: flex-start;
  }

  .nav-cta {
    padding-inline: 0.75rem;
  }

  .hero,
  .section {
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
  }

  .metrics-card {
    grid-template-columns: 1fr;
  }

  .cta-group > *,
  .contact-form button {
    width: 100%;
  }

  .method-box {
    padding: 1.25rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}