:root {
  --maroon: #500000;
  --graphite: #3A3D42;
  --light-graphite: #6B7078;
  --deep-space: #243447;
  --steel-blue: #4F6475;
  --paper: #F6F4F1;
  --white: #FFFFFF;
  --black: #111111;
  --max-width: 1160px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--graphite);
  background: var(--paper);
  font-family: "Source Sans 3", "Source Sans Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
}

a { color: inherit; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 0.85rem clamp(1rem, 4vw, 3rem);
  background: rgba(246, 244, 241, 0.94);
  border-bottom: 1px solid rgba(58, 61, 66, 0.14);
  backdrop-filter: blur(10px);
}

.brand img { display: block; width: min(320px, 58vw); height: auto; }
.nav { display: flex; gap: 1.4rem; font-size: 0.95rem; font-weight: 650; }
.nav a { text-decoration: none; color: var(--graphite); }
.nav a:hover { color: var(--maroon); }

.hero {
  position: relative;
  min-height: 690px;
  display: grid;
  align-items: center;
  overflow: hidden;
  color: var(--white);
  background: var(--deep-space);
}
.hero-image,
.hero-overlay {
  position: absolute;
  inset: 0;
}
.hero-image {
  background-image: url("/assets/launch-plume.png");
  background-size: cover;
  background-position: center;
  transform: scale(1.01);
}
.hero-overlay {
  background:
    linear-gradient(90deg, rgba(17, 17, 17, .82) 0%, rgba(17, 17, 17, .62) 40%, rgba(17, 17, 17, .18) 100%),
    linear-gradient(0deg, rgba(17, 17, 17, .58) 0%, rgba(17, 17, 17, .04) 45%, rgba(17, 17, 17, .20) 100%);
}
.hero-content {
  position: relative;
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
  padding: 6rem 0;
}
.eyebrow {
  margin: 0 0 .8rem;
  color: var(--maroon);
  font-size: .84rem;
  font-weight: 800;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.hero .eyebrow { color: #e9caca; }
h1, h2, h3 { margin: 0; line-height: 1.08; color: var(--deep-space); }
h1 {
  max-width: 850px;
  color: var(--white);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(3rem, 8vw, 6.8rem);
  font-weight: 700;
  letter-spacing: -0.045em;
}
.hero-copy {
  max-width: 710px;
  margin: 1.5rem 0 0;
  color: rgba(255,255,255,.88);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
}
.hero-actions, .contact-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .85rem;
  margin-top: 2rem;
}
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: .78rem 1.15rem;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 750;
  letter-spacing: .01em;
}
.button.primary {
  color: var(--white);
  background: var(--maroon);
  border-color: var(--maroon);
}
.button.secondary {
  color: var(--white);
  border-color: rgba(255,255,255,.55);
  background: rgba(255,255,255,.08);
}
.button.secondary.dark {
  color: var(--deep-space);
  border-color: rgba(36,52,71,.3);
  background: transparent;
}
.button:hover { filter: brightness(1.06); }

.section, .section-narrow, .principles, .contact {
  width: min(var(--max-width), calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(4rem, 8vw, 7rem) 0;
}
.section-narrow { max-width: 860px; }
.intro .lead {
  color: var(--deep-space);
  font-size: clamp(1.55rem, 3vw, 2.35rem);
  line-height: 1.2;
  font-family: Georgia, "Times New Roman", serif;
}
.intro p:not(.lead), .invisible p { font-size: 1.1rem; }
.section-heading {
  display: grid;
  gap: .7rem;
  max-width: 760px;
  margin-bottom: 2rem;
}
.section-heading h2, .invisible h2, .contact h2 {
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2rem, 4vw, 3.4rem);
  letter-spacing: -0.03em;
}
.cards {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
}
.card {
  min-height: 230px;
  padding: 1.35rem;
  background: var(--white);
  border-top: 4px solid var(--maroon);
  box-shadow: 0 16px 40px rgba(36,52,71,.08);
}
.card h3, .principle-grid h3 { margin-bottom: .8rem; font-size: 1.25rem; }
.card p, .principle-grid p { margin: 0; color: var(--light-graphite); }

.principles {
  width: 100%;
  max-width: none;
  padding-left: max(1rem, calc((100% - var(--max-width)) / 2));
  padding-right: max(1rem, calc((100% - var(--max-width)) / 2));
  background:
    linear-gradient(rgba(17, 17, 17, .88), rgba(17, 17, 17, .88)),
    url("/assets/carbon-fiber.jpg") center/cover;
}
.principles .section-heading h2, .principles h3 { color: var(--white); }
.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(255,255,255,.16);
  border: 1px solid rgba(255,255,255,.16);
}
.principle-grid > div {
  padding: 1.6rem;
  background: rgba(17,17,17,.45);
}
.principle-grid p { color: rgba(255,255,255,.74); }

.invisible {
  border-bottom: 1px solid rgba(58,61,66,.14);
}
.contact {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: center;
}
.site-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .75rem;
  padding: 2rem 1rem;
  color: rgba(255,255,255,.72);
  background: var(--graphite);
  font-size: .92rem;
}
.site-footer img { width: 34px; height: 34px; object-fit: contain; }

@media (max-width: 1020px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .card:last-child { grid-column: span 2; }
}
@media (max-width: 720px) {
  .site-header { align-items: flex-start; flex-direction: column; }
  .nav { width: 100%; justify-content: space-between; }
  .hero { min-height: 620px; }
  .cards, .principle-grid, .contact { grid-template-columns: 1fr; }
  .card:last-child { grid-column: auto; }
  .contact-actions { margin-top: 0; }
}