:root {
  color-scheme: light;
  --carbon: #121416;
  --graphite: #1e2226;
  --slate: #3d454c;
  --lime: #a4ff4f;
  --amber: #ffb347;
  --sand: #f7f4ed;
  --border: rgba(255, 255, 255, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Space Grotesk', 'Archivo', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--sand);
  color: var(--carbon);
  line-height: 1.55;
}

img {
  max-width: 100%;
  display: block;
}

.eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--slate);
  margin: 0;
}

.hero .eyebrow {
  color: rgba(255, 255, 255, 0.75);
}

.wordmark {
  font-family: 'Archivo', 'Space Grotesk', sans-serif;
  font-size: 1.6rem;
  margin: 0;
  letter-spacing: 0.08em;
}

.lead {
  font-size: 1.1rem;
  max-width: 38rem;
}

.hero {
  background: radial-gradient(circle at top left, rgba(164, 255, 79, 0.25), transparent 40%),
    var(--carbon);
  color: #fff;
  padding: 2.5rem clamp(1rem, 6vw, 6rem) 3rem;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
  margin-bottom: 2.8rem;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.brand-mark {
  display: block;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  border: 2px solid #fff;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.35);
}

.brand .eyebrow {
  color: rgba(255, 255, 255, 0.7);
}

.brand .wordmark {
  color: #fff;
  font-size: 1.8rem;
}

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

.nav-links a {
  text-decoration: none;
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
}

.nav-links .btn {
  color: var(--carbon);
}

.hero-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  align-items: stretch;
}

.hero h1 {
  font-size: clamp(2.3rem, 6vw, 3.5rem);
  margin: 0.4rem 0 1rem;
  line-height: 1.2;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.hero-panel {
  background: rgba(0, 0, 0, 0.4);
  border-radius: 1.25rem;
  padding: 1.8rem;
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.hero-panel ul {
  list-style: none;
  padding: 0;
  margin: 0.6rem 0 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.hero-panel strong {
  font-size: 1.4rem;
}

.hero-panel .small {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
}

.btn {
  border-radius: 999px;
  border: none;
  padding: 0.85rem 1.7rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn.primary {
  background: var(--lime);
  color: var(--carbon);
}

.btn.secondary {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn.ghost {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: #fff;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
}

main {
  padding: 0 clamp(1rem, 6vw, 6rem) 4rem;
  margin-top: 1.5rem;
}

.panel {
  background: #fff;
  border-radius: 1.5rem;
  padding: 2.5rem;
  margin-bottom: 2.5rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-bottom: 1.6rem;
}

.flows .panel-header p {
  max-width: 32rem;
}

.flow-toggle {
  display: inline-flex;
  background: rgba(0, 0, 0, 0.05);
  border-radius: 999px;
  padding: 0.4rem;
}

.flow-toggle button {
  border: none;
  background: transparent;
  border-radius: 999px;
  padding: 0.6rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
}

.flow-toggle button[aria-selected='true'] {
  background: var(--carbon);
  color: #fff;
}

.flow-grid {
  margin-top: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.step {
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 1rem;
  padding: 1.4rem;
  background: var(--sand);
}

.step span {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--slate);
}

.step h3 {
  margin: 0.4rem 0 0.6rem;
  font-size: 1.2rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-top: 0.2rem;
}

.product-grid article {
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 1rem;
  padding: 1.5rem;
  background: linear-gradient(135deg, rgba(18, 20, 22, 0.04), rgba(18, 20, 22, 0.12));
}

.product-grid h3 {
  margin-top: 0;
}

.product-grid ul {
  padding-left: 1.1rem;
  color: var(--slate);
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem;
  margin-top: 0.5rem;
}

.process-grid article {
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 1rem;
  padding: 1.4rem;
  background: linear-gradient(180deg, rgba(164, 255, 79, 0.12), rgba(255, 255, 255, 0));
}

.process-grid span {
  font-weight: 600;
  color: var(--slate);
  letter-spacing: 0.1em;
}

.spec-table {
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 1rem;
  overflow: hidden;
}

.spec-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
  padding: 1rem 1.2rem;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.spec-head {
  background: var(--carbon);
  color: #fff;
  font-weight: 600;
  border-top: none;
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.cases-grid article {
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 1.2rem;
  padding: 1.6rem;
  background: #fafafa;
}

.cases-grid .label {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.78rem;
  color: var(--slate);
  margin: 0 0 0.4rem;
}

.cases-grid ul {
  padding-left: 1.1rem;
  color: var(--slate);
}

.compliance {
  margin: 2.5rem clamp(1rem, 6vw, 6rem);
  background: var(--carbon);
  color: #fff;
  border-radius: 1.5rem;
  padding: 2rem;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.compliance-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.compliance article {
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 1rem;
  padding: 1.4rem;
  background: rgba(255, 255, 255, 0.05);
}

.faq-list article {
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  padding: 1rem 0;
}

.faq-list button {
  width: 100%;
  border: none;
  background: none;
  font: inherit;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.2rem 0;
  cursor: pointer;
}

.faq-list svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
}

.faq-list p {
  display: none;
  margin: 0.6rem 0 0;
  color: var(--slate);
}

.faq-list article.is-open p {
  display: block;
}

.downloads .download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
}

.download-grid article {
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 1.2rem;
  padding: 1.5rem;
  background: #f9f7f1;
}

.download-grid .label {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--slate);
  margin: 0 0 0.4rem;
}

.download-grid a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  text-decoration: none;
  font-weight: 600;
  color: var(--carbon);
}

.impact-grid {
  margin-top: 0.5rem;
  display: grid;
  grid-template-columns: minmax(260px, 340px) 1fr;
  gap: 1.5rem;
}

.calculator {
  border: 1px solid rgba(0, 0, 0, 0.1);
  border-radius: 1.2rem;
  padding: 1.5rem;
  background: var(--sand);
}

.input {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0.8rem 0 1rem;
}

.input input {
  flex: 1;
  max-width: 70%;
  padding: 0.6rem 0.9rem;
  border-radius: 0.6rem;
  border: 1px solid rgba(0, 0, 0, 0.2);
  font-size: 1.1rem;
}

.input span {
  font-weight: 600;
  color: var(--slate);
}

.calc-results {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 0.8rem;
}

.calc-results strong {
  font-size: 1.3rem;
}

.impact-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1.25rem;
}

.impact-stats article {
  background: #101417;
  color: #fff;
  border-radius: 1rem;
  padding: 1.2rem;
}

.impact-stats .label {
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.6);
  margin: 0;
}

.impact-stats .value {
  font-size: 1.8rem;
  margin: 0.4rem 0 0;
}

footer {
  padding: 2.5rem clamp(1rem, 6vw, 6rem) 3rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-links a {
  color: var(--carbon);
  text-decoration: none;
  font-weight: 600;
}

@media (max-width: 800px) {
  .nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links {
    width: 100%;
  }

  .panel {
    padding: 2rem;
  }

  .impact-grid {
    grid-template-columns: 1fr;
  }
}