:root {
  --navy: #1B365D;
  --gold: #C4A35A;
  --cream: #F4F0E6;
  --ink: #1a1a1a;
  --muted: #4a4a4a;
  --font: Calibri, "Segoe UI", Candara, "Noto Sans", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--cream);
}

.wrap {
  width: min(920px, calc(100% - 2.5rem));
  margin-inline: auto;
}

.site-header {
  background: var(--navy);
  color: var(--cream);
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 3px solid var(--gold);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 3.5rem;
  position: relative;
}

.logo {
  color: var(--cream);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.95rem;
}

.nav {
  display: flex;
  gap: 1.5rem;
}

.nav a {
  color: var(--cream);
  text-decoration: none;
  font-size: 0.95rem;
}

.nav a:hover,
.nav a:focus-visible {
  color: var(--gold);
}

.menu-toggle {
  display: none;
  background: none;
  border: 0;
  padding: 0.4rem;
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 1.35rem;
  height: 2px;
  background: var(--cream);
  margin: 4px 0;
}

.hero {
  position: relative;
  overflow: hidden;
  background: var(--navy);
  color: var(--cream);
  padding: 4.5rem 0 4rem;
}

.hero-slides {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  animation: heroFade 36s ease-in-out infinite;
}

.hero-slide:nth-child(1) {
  background-image: url("img/dc-racks-aisle.jpg");
}

.hero-slide:nth-child(2) {
  background-image: url("img/dc-aerial.jpg");
  animation-delay: 12s;
}

.hero-slide:nth-child(3) {
  background-image: url("img/dc-racks-close.jpg");
  animation-delay: 24s;
}

@keyframes heroFade {
  0% { opacity: 0; }
  5% { opacity: 1; }
  33% { opacity: 1; }
  38% { opacity: 0; }
  100% { opacity: 0; }
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(27, 54, 93, 0.6);
  z-index: 1;
}

.hero .wrap {
  position: relative;
  z-index: 2;
}

.eyebrow {
  color: var(--gold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.75rem;
  margin: 0 0 1rem;
}

.hero h1 {
  font-size: clamp(1.7rem, 4vw, 2.4rem);
  font-weight: 600;
  line-height: 1.25;
  margin: 0 0 1rem;
}

.lede {
  font-size: 1.2rem;
  color: var(--gold);
  margin: 0;
}

.section {
  padding: 3.25rem 0;
}

.section-alt {
  background: #ebe6da;
}

#sectors.section-alt {
  position: relative;
  background: #ebe6da url("img/dc-aerial.jpg") center / cover no-repeat;
}

#sectors.section-alt::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(244, 240, 230, 0.78);
}

#sectors.section-alt .wrap {
  position: relative;
  z-index: 1;
}

h2 {
  font-size: 1.35rem;
  color: var(--navy);
  margin: 0 0 1rem;
  font-weight: 700;
}

h3 {
  font-size: 1.05rem;
  color: var(--navy);
  margin: 0 0 0.5rem;
}

p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: start;
}

.card {
  border-left: 3px solid var(--gold);
  padding: 0 0 0 1.25rem;
}

.card ul {
  margin: 0 0 1rem;
  padding-left: 1.1rem;
}

.card li { margin-bottom: 0.25rem; }

.note {
  font-size: 0.95rem;
  color: var(--muted);
}

.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
}

.steps li {
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 1rem;
  align-items: start;
}

.step-n {
  color: var(--gold);
  font-weight: 700;
  letter-spacing: 0.06em;
}

.site-footer {
  background: var(--navy);
  color: var(--cream);
  padding: 2rem 0;
  font-size: 0.9rem;
  border-top: 3px solid var(--gold);
}

.site-footer p { margin: 0 0 0.4rem; }
.site-footer p:last-child { margin: 0; color: #c9c4b8; }

@media (max-width: 720px) {
  .two-col { grid-template-columns: 1fr; }
  .menu-toggle { display: block; }
  .nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--navy);
    padding: 0.75rem 1.25rem 1.25rem;
    gap: 0.75rem;
    border-bottom: 3px solid var(--gold);
  }
  .nav.is-open { display: flex; }
  .hero { padding: 3rem 0 2.5rem; }
  .section { padding: 2.5rem 0; }
}