:root {
  color-scheme: light;
  --ink: #141414;
  --fog: #f4f3ef;
  --sand: #e6e1d7;
  --clay: #c9bda8;
  --oxide: #9f6b3f;
  --graphite: #2c2c2c;
  --sun: #f6c76a;
  --accent: #2f5f6f;
  --gridline: rgba(20, 20, 20, 0.08);
  --shadow: 0 18px 35px rgba(20, 20, 20, 0.12);
  --mono: "IBM Plex Mono", "Courier New", monospace;
  --sans: "Space Grotesk", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--fog);
  color: var(--ink);
  font-family: var(--sans);
  line-height: 1.5;
}

.backdrop {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 10% 20%, rgba(246, 199, 106, 0.45), transparent 45%),
    radial-gradient(circle at 90% 10%, rgba(47, 95, 111, 0.25), transparent 45%),
    linear-gradient(135deg, #f9f6f0 0%, #efe7da 55%, #f0ede7 100%);
}

.backdrop::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(0deg, var(--gridline), var(--gridline) 1px, transparent 1px, transparent 26px),
    repeating-linear-gradient(90deg, var(--gridline), var(--gridline) 1px, transparent 1px, transparent 26px);
  opacity: 0.6;
  pointer-events: none;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 32px 8vw 12px;
  gap: 24px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-mark {
  background: var(--graphite);
  color: var(--fog);
  font-weight: 700;
  letter-spacing: 0.2em;
  font-size: 0.85rem;
  padding: 12px 10px;
  border-radius: 6px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-name {
  font-size: 1.1rem;
  font-weight: 700;
}

.brand-tag {
  font-family: var(--mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.site-nav {
  display: flex;
  gap: 22px;
  font-family: var(--mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.site-nav a {
  text-decoration: none;
  color: var(--graphite);
  position: relative;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--oxide);
  transition: width 0.3s ease;
}

.site-nav a:hover::after {
  width: 100%;
}

main {
  display: flex;
  flex-direction: column;
  gap: 96px;
  padding: 32px 8vw 120px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: 40px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.6rem, 4vw, 4rem);
  line-height: 1.05;
  margin-bottom: 20px;
}

.eyebrow {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.75rem;
  color: var(--accent);
}

.lead {
  font-size: 1.1rem;
  max-width: 540px;
}

.cta-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.cta {
  background: var(--graphite);
  color: var(--fog);
  padding: 14px 26px;
  border-radius: 28px;
  text-decoration: none;
  font-weight: 600;
  letter-spacing: 0.02em;
  box-shadow: var(--shadow);
}

.cta-note {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--graphite);
}

.hero-card {
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(20, 20, 20, 0.1);
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow);
}

.hero-card ul {
  padding-left: 18px;
  margin: 14px 0 0;
  display: grid;
  gap: 12px;
}

.card-label {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  font-size: 0.7rem;
  color: var(--accent);
}

.section {
  display: grid;
  gap: 32px;
}

.section-heading h2 {
  font-size: clamp(2rem, 3vw, 2.8rem);
  margin-bottom: 12px;
}

.section-heading p {
  max-width: 640px;
}

.principles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.principles article,
.kit-card,
.ops-grid > div,
.contact-card {
  background: rgba(255, 255, 255, 0.78);
  border-radius: 18px;
  padding: 22px;
  border: 1px solid rgba(20, 20, 20, 0.08);
  box-shadow: var(--shadow);
}

.kit-grid,
.v0-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.v0-grid ul {
  margin: 12px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.ops-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.ops-grid ul {
  margin: 12px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 10px;
}

.contact {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  align-items: center;
}

.contact-card {
  text-align: left;
}

.contact-label {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.7rem;
  margin-bottom: 14px;
}

.contact-link {
  font-size: 1.2rem;
  color: var(--graphite);
  text-decoration: none;
  font-weight: 600;
}

.contact-sub {
  margin-top: 10px;
  color: var(--accent);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 24px 8vw 40px;
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.7rem;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 960px) {
  .hero,
  .contact {
    grid-template-columns: 1fr;
  }

  .site-nav {
    flex-wrap: wrap;
  }
}

@media (max-width: 640px) {
  .site-header,
  main,
  .site-footer {
    padding-left: 6vw;
    padding-right: 6vw;
  }

  .site-nav {
    gap: 14px;
  }
}