:root {
  --navy: #102a43;
  --blue: #1f5f99;
  --blue-dark: #174a78;
  --ink: #17212b;
  --muted: #5f6b76;
  --line: #dce4eb;
  --surface: #f4f7fa;
  --white: #ffffff;
  --green: #18794e;
  --shadow: 0 18px 50px rgba(16, 42, 67, .12);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
}

.site-header {
  min-height: 76px;
  padding: 14px clamp(20px, 5vw, 72px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, .96);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--navy);
  font-size: 1.05rem;
  font-weight: 800;
  text-decoration: none;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--navy);
  color: var(--white);
  font-size: .74rem;
  letter-spacing: .04em;
}

.header-label {
  color: var(--muted);
  font-size: .88rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.header-actions { display: flex; align-items: center; gap: 24px; }
.header-actions a { color: var(--blue-dark); font-size: .88rem; font-weight: 800; text-decoration: none; }
.header-actions a:hover, .header-actions a:focus-visible { text-decoration: underline; }

main { overflow: hidden; }

.hero {
  padding: clamp(72px, 10vw, 132px) clamp(20px, 7vw, 110px) clamp(64px, 8vw, 104px);
  background:
    radial-gradient(circle at 85% 10%, rgba(57, 139, 194, .28), transparent 28%),
    linear-gradient(135deg, #0c2238 0%, #153e64 58%, #1f5f99 100%);
  color: var(--white);
}

.hero > * { max-width: 840px; }

.eyebrow {
  margin: 0 0 12px;
  color: #69b4e5;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .15em;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }

h1 {
  margin-bottom: 22px;
  font-size: clamp(2.35rem, 6vw, 4.9rem);
  line-height: 1.02;
  letter-spacing: -.045em;
}

.intro {
  max-width: 740px;
  margin-bottom: 0;
  color: #dceaf5;
  font-size: clamp(1.06rem, 2vw, 1.3rem);
}

.opportunities {
  max-width: 1120px;
  margin: 0 auto;
  padding: clamp(62px, 8vw, 96px) 20px;
}

.section-heading {
  margin-bottom: 24px;
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
}

.section-heading h2 {
  margin-bottom: 0;
  color: var(--navy);
  font-size: clamp(1.7rem, 3vw, 2.35rem);
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--green);
  font-size: .86rem;
  font-weight: 800;
}

.status span {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 5px rgba(24, 121, 78, .12);
}

.bid-card {
  display: grid;
  grid-template-columns: 12px 1fr;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--white);
  box-shadow: var(--shadow);
}

.card-accent { background: linear-gradient(var(--blue), var(--navy)); }

.card-body { padding: clamp(28px, 5vw, 56px); }

.card-topline {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.card-body h3 {
  margin-bottom: 4px;
  color: var(--navy);
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.05;
}

.location {
  margin-bottom: 24px;
  color: var(--blue-dark);
  font-weight: 700;
}

.description { max-width: 760px; color: var(--muted); }

.project-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 30px 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--line);
}

.project-facts div { padding: 18px; background: var(--surface); }
.project-facts dt { color: var(--muted); font-size: .73rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.project-facts dd { margin: 4px 0 0; color: var(--navy); font-weight: 800; }

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  min-height: 52px;
  padding: 12px 22px;
  border-radius: 9px;
  background: var(--blue);
  color: var(--white);
  font-weight: 800;
  text-decoration: none;
  transition: background .2s ease, transform .2s ease;
}

.primary-button:hover, .primary-button:focus-visible { background: var(--blue-dark); transform: translateY(-1px); }

.availability-note { margin: 14px 0 0; color: var(--muted); font-size: .84rem; }

.notice {
  padding: clamp(54px, 7vw, 82px) clamp(20px, 7vw, 110px);
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.builder-callout {
  max-width: 1120px;
  margin: 0 auto;
  padding: 48px 20px 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
}

.builder-callout h2 { margin-bottom: 10px; color: var(--navy); font-size: clamp(1.7rem, 3vw, 2.5rem); }
.builder-callout p:not(.eyebrow) { max-width: 720px; margin-bottom: 0; color: var(--muted); }

.secondary-button {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  min-height: 50px;
  padding: 12px 20px;
  border: 1px solid var(--blue);
  border-radius: 9px;
  color: var(--blue-dark);
  font-weight: 800;
  text-decoration: none;
}
.secondary-button:hover, .secondary-button:focus-visible { background: #edf5fb; }

.notice h2 { margin-bottom: 12px; color: var(--navy); font-size: clamp(1.45rem, 3vw, 2rem); }
.notice p { max-width: 900px; margin-bottom: 0; color: var(--muted); }

footer {
  padding: 30px clamp(20px, 5vw, 72px);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  color: var(--muted);
  font-size: .84rem;
}

footer span:first-child { color: var(--navy); font-weight: 800; }

@media (max-width: 650px) {
  .header-label { display: none; }
  .hero { padding-top: 72px; }
  .section-heading, .card-topline, .builder-callout, footer { align-items: flex-start; flex-direction: column; }
  .project-facts { grid-template-columns: 1fr; }
  .primary-button { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .primary-button { transition: none; }
}