/* ==========================================================================
   American Builders and Engineering Company — styles
   ========================================================================== */

:root {
  --navy: #0b1a2b;
  --navy-deep: #050d18;
  --navy-soft: #122742;
  --steel: #1a2f4a;
  --accent: #f5a623;        /* construction amber */
  --accent-deep: #d98c12;
  --accent-soft: #ffd27a;
  --ink: #0d1623;
  --slate: #4a5b73;
  --mute: #7a8aa3;
  --line: #e6ebf2;
  --bg: #ffffff;
  --bg-alt: #f5f7fa;
  --bg-dark: #0b1a2b;
  --max: 1200px;
  --radius: 4px;
  --radius-lg: 8px;
  --shadow-sm: 0 2px 6px rgba(11, 26, 43, 0.08);
  --shadow-md: 0 12px 30px rgba(11, 26, 43, 0.12);
  --shadow-lg: 0 24px 60px rgba(11, 26, 43, 0.18);
  --t: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5 {
  font-family: 'Barlow Condensed', 'Inter', sans-serif;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
  color: var(--navy);
}

h1 { font-size: clamp(2.5rem, 6vw, 4.5rem); }
h2 { font-size: clamp(1.875rem, 4vw, 2.875rem); }
h3 { font-size: 1.4rem; }
h4 { font-size: 1.1rem; }

p { margin: 0 0 1em; }
a { color: var(--accent-deep); text-decoration: none; transition: color var(--t); }
a:hover { color: var(--accent); }
ul { padding: 0; margin: 0; list-style: none; }
img { max-width: 100%; display: block; }

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.section-eyebrow {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin: 0 0 0.75em;
}
.section-eyebrow.centered { text-align: center; }

.section-title { text-align: center; margin-bottom: 0.5em; }
.section-lede {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem;
  color: var(--slate);
  font-size: 1.05rem;
}

.eyebrow {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 1em;
}

.accent { color: var(--accent); }

/* ====== Buttons ====== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 2px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--t);
  white-space: nowrap;
}
.btn-lg { padding: 18px 36px; font-size: 1.05rem; }
.btn-primary {
  background: var(--accent);
  color: var(--navy);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-deep);
  border-color: var(--accent-deep);
  color: var(--navy);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.btn-ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.45);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  color: #fff;
  transform: translateY(-2px);
}

/* ====== Header ====== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(11, 26, 43, 0);
  backdrop-filter: blur(0);
  transition: background var(--t), box-shadow var(--t), backdrop-filter var(--t);
}
.site-header.scrolled {
  background: rgba(11, 26, 43, 0.95);
  backdrop-filter: blur(12px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: #fff;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--accent);
  color: var(--navy);
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: 0.05em;
  border-radius: var(--radius);
  flex-shrink: 0;
}
.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.brand-name {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.03em;
}
.brand-sub {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.7);
  margin-top: 4px;
  letter-spacing: 0.04em;
}

.nav {
  display: flex;
  align-items: center;
  gap: 36px;
}
.nav a {
  color: rgba(255, 255, 255, 0.85);
  font-weight: 500;
  font-size: 0.95rem;
  text-decoration: none;
  transition: color var(--t);
  position: relative;
}
.nav a:hover { color: var(--accent); }
.nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width var(--t);
}
.nav a:not(.nav-cta):hover::after { width: 100%; }
.nav .nav-cta {
  background: var(--accent);
  color: var(--navy) !important;
  padding: 10px 22px;
  border-radius: var(--radius);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
}
.nav .nav-cta:hover {
  background: var(--accent-deep);
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  padding: 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 28px;
  height: 2px;
  background: #fff;
  transition: transform var(--t), opacity var(--t);
}

/* ====== Hero ====== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  color: #fff;
  overflow: hidden;
  padding: 120px 0 80px;
}
.hero-media {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(11, 26, 43, 0.78), rgba(5, 13, 24, 0.82)),
    radial-gradient(circle at 20% 80%, rgba(245, 166, 35, 0.18), transparent 40%),
    url('images/hero.jpg') center / cover no-repeat,
    linear-gradient(180deg, #0b1a2b, #050d18);
}
.hero-media::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(245, 166, 35, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(245, 166, 35, 0.08) 1px, transparent 1px);
  background-size: 60px 60px;
  background-position: center;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 70% 30%, rgba(245, 166, 35, 0.18), transparent 50%),
    linear-gradient(180deg, transparent 60%, var(--navy-deep) 100%);
}
.hero-content { position: relative; z-index: 2; }
.hero h1 { color: #fff; margin-bottom: 0.4em; }
.lede {
  font-size: 1.2rem;
  max-width: 620px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 2.5rem;
}
.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 4rem;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  max-width: 800px;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}
.hero-stats li {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.hero-stats strong {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.hero-stats span {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.7);
  letter-spacing: 0.05em;
}

.scroll-down {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 44px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-radius: 14px;
  z-index: 2;
}
.scroll-down span {
  display: block;
  width: 4px;
  height: 8px;
  background: var(--accent);
  border-radius: 2px;
  margin: 6px auto;
  animation: scroll 1.8s infinite;
}
@keyframes scroll {
  0% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(16px); }
}

/* ====== About ====== */
.about {
  padding: 120px 0;
  background: var(--bg);
}
.about-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 80px;
  align-items: start;
}
.about-pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 2.5rem;
}
.pillar {
  padding: 24px;
  background: var(--bg-alt);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
}
.pillar h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5em;
  color: var(--navy);
}
.pillar p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--slate);
}

.about-card {
  background: var(--navy);
  color: #fff;
  padding: 40px;
  border-radius: var(--radius-lg);
  position: sticky;
  top: 100px;
  box-shadow: var(--shadow-lg);
  border-top: 4px solid var(--accent);
}
.card-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.95rem;
  gap: 12px;
}
.card-row.last { border-bottom: 0; padding-bottom: 0; }
.card-row span {
  color: rgba(255, 255, 255, 0.65);
  flex-shrink: 0;
}
.card-row strong {
  font-family: 'Barlow Condensed', sans-serif;
  color: var(--accent);
  font-weight: 700;
  text-align: right;
}

/* ====== Services ====== */
.services {
  padding: 120px 0;
  background: var(--bg-alt);
}
.service-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  background: #fff;
  padding: 40px 32px;
  border-radius: var(--radius-lg);
  border-top: 3px solid transparent;
  transition: transform var(--t), box-shadow var(--t), border-color var(--t);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-top-color: var(--accent);
}
.service-icon {
  width: 56px;
  height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--navy);
  color: var(--accent);
  border-radius: var(--radius);
  margin-bottom: 20px;
}
.service-icon svg { width: 28px; height: 28px; }
.service-card h3 { color: var(--navy); margin-bottom: 0.6em; }
.service-card > p {
  color: var(--slate);
  font-size: 0.95rem;
  margin-bottom: 1.2em;
}
.service-card ul {
  border-top: 1px solid var(--line);
  padding-top: 16px;
}
.service-card li {
  font-size: 0.9rem;
  color: var(--slate);
  padding: 6px 0 6px 18px;
  position: relative;
}
.service-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 13px;
  width: 8px;
  height: 2px;
  background: var(--accent);
}

/* ====== Capabilities ====== */
.capabilities {
  padding: 120px 0;
  background: var(--navy);
  color: #fff;
}
.capabilities .section-eyebrow { color: var(--accent); }
.capabilities h2 { color: #fff; }
.capabilities p { color: rgba(255, 255, 255, 0.75); }
.capabilities-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}
.capabilities-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
.cap-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}
.cap-num {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800;
  font-size: 2rem;
  color: var(--accent);
  line-height: 1;
  flex-shrink: 0;
  width: 50px;
}
.cap-item h4 {
  color: #fff;
  margin-bottom: 0.4em;
}
.cap-item p {
  font-size: 0.9rem;
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
}

/* ====== NAICS Codes ====== */
.naics {
  padding: 120px 0;
  background: var(--bg-alt);
}
.naics-group + .naics-group { margin-top: 56px; }
.naics-group-title {
  font-size: 1.15rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--navy);
  border-bottom: 2px solid var(--accent);
  display: inline-block;
  padding-bottom: 6px;
  margin-bottom: 1.2em;
}
.naics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
.naics-item {
  display: flex;
  align-items: baseline;
  gap: 14px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px 18px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--t), box-shadow var(--t);
}
.naics-item:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.naics-code {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: 0.04em;
  color: var(--accent-deep);
  flex-shrink: 0;
}
.naics-name {
  font-size: 0.88rem;
  line-height: 1.45;
  color: var(--slate);
}

/* ====== Projects ====== */
.projects {
  padding: 120px 0;
  background: var(--bg);
}
.project-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 240px;
  gap: 20px;
}
.project-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  cursor: pointer;
  background: var(--navy-soft);
}
.project-tall { grid-row: span 2; }
.project-wide { grid-column: span 2; }
.project-img {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.project-card:hover .project-img { transform: scale(1.08); }

.project-img-1 {
  background:
    linear-gradient(180deg, rgba(11,26,43,0.15) 0%, rgba(11,26,43,0.85) 100%),
    url('images/project-1.jpg') center / cover no-repeat;
}
.project-img-2 {
  background:
    linear-gradient(180deg, rgba(11,26,43,0.15) 0%, rgba(11,26,43,0.85) 100%),
    url('images/project-2.jpg') center / cover no-repeat;
}
.project-img-3 {
  background:
    linear-gradient(180deg, rgba(11,26,43,0.15) 0%, rgba(11,26,43,0.85) 100%),
    url('images/project-3.jpg') center / cover no-repeat;
}
.project-img-4 {
  background:
    linear-gradient(180deg, rgba(11,26,43,0.15) 0%, rgba(11,26,43,0.85) 100%),
    url('images/project-4.jpg') center / cover no-repeat;
}
.project-img-5 {
  background:
    linear-gradient(180deg, rgba(11,26,43,0.15) 0%, rgba(11,26,43,0.85) 100%),
    url('images/project-5.jpg') center / cover no-repeat;
}

.project-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
  color: #fff;
  z-index: 2;
}
.project-tag {
  display: inline-block;
  align-self: flex-start;
  background: var(--accent);
  color: var(--navy);
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 3px;
  margin-bottom: 12px;
}
.project-overlay h3 {
  color: #fff;
  margin-bottom: 0.4em;
}
.project-overlay p {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.85);
  margin: 0;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: max-height 0.4s, opacity 0.4s;
}
.project-card:hover .project-overlay p {
  max-height: 120px;
  opacity: 1;
}

/* ====== Clients ====== */
.clients {
  padding: 120px 0;
  background: var(--bg-alt);
}
.client-logos {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
  align-items: center;
  margin-top: 3rem;
}
.client-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  height: 100px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--navy);
  font-size: 1.05rem;
  padding: 12px;
  transition: transform var(--t), box-shadow var(--t);
}
.client-logo:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-sm);
}
.client-logo span {
  display: block;
  font-size: 0.8rem;
  color: var(--accent-deep);
  margin-top: 2px;
}

/* ====== CTA ====== */
.cta {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  padding: 70px 0;
  color: var(--navy);
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta h2 { margin: 0 0 0.4em; color: var(--navy); }
.cta p { margin: 0; color: rgba(11, 26, 43, 0.85); font-size: 1.05rem; }
.cta .btn-primary {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}
.cta .btn-primary:hover {
  background: var(--navy-deep);
  border-color: var(--navy-deep);
  color: #fff;
}

/* ====== Contact ====== */
.contact {
  padding: 120px 0;
  background: var(--bg);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: start;
}
.contact-list {
  margin-top: 2rem;
  display: grid;
  gap: 20px;
}
.contact-list li {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}
.ci-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--accent-deep);
}
.ci-value {
  color: var(--ink);
  font-weight: 500;
}

.contact-form {
  background: var(--bg-alt);
  padding: 40px;
  border-radius: var(--radius-lg);
  border-top: 4px solid var(--accent);
  display: grid;
  gap: 18px;
}
.contact-form .row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.contact-form span {
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--navy);
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 1rem;
  color: var(--ink);
  background: #fff;
  transition: border-color var(--t), box-shadow var(--t);
  resize: vertical;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(245, 166, 35, 0.15);
}
.contact-form .btn { justify-self: start; }
.form-status {
  margin: 0;
  font-size: 0.95rem;
  color: var(--accent-deep);
  font-weight: 600;
  min-height: 1.4em;
}

/* ====== Footer ====== */
.site-footer {
  background: var(--navy-deep);
  color: rgba(255, 255, 255, 0.7);
  padding: 70px 0 30px;
}
.footer-brand { color: #fff; margin-bottom: 1rem; }
.footer-brand .brand-sub { color: rgba(255, 255, 255, 0.6); }
.footer-tag {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.6);
  margin: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.4fr;
  gap: 48px;
  padding-bottom: 50px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-grid h5 {
  font-family: 'Barlow Condensed', sans-serif;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-size: 0.95rem;
  color: var(--accent);
  margin-bottom: 1.2em;
}
.footer-grid ul li { margin-bottom: 10px; font-size: 0.95rem; }
.footer-grid ul a { color: rgba(255, 255, 255, 0.7); }
.footer-grid ul a:hover { color: var(--accent); }
.footer-grid p { font-size: 0.95rem; line-height: 1.7; margin: 0; }

.footer-bar {
  padding-top: 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  flex-wrap: wrap;
  gap: 12px;
}

/* ====== Reveal animation ====== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s, transform 0.8s;
}
.reveal.in {
  opacity: 1;
  transform: none;
}

/* ====== Responsive ====== */
@media (max-width: 1024px) {
  .about-grid,
  .capabilities-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 50px;
  }
  .about-card { position: static; }
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .capabilities-list { grid-template-columns: 1fr; }
  .naics-grid { grid-template-columns: repeat(2, 1fr); }
  .project-grid { grid-template-columns: repeat(2, 1fr); }
  .project-tall { grid-row: span 1; }
  .project-wide { grid-column: span 2; }
  .client-logos { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .nav {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--navy-deep);
    padding: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    transform: translateY(-150%);
    transition: transform var(--t);
  }
  .nav.open { transform: translateY(0); }
  .nav a {
    padding: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .nav a:not(.nav-cta)::after { display: none; }
  .nav .nav-cta { text-align: center; margin-top: 12px; }
  .nav-toggle { display: flex; }

  .hero { padding: 100px 0 60px; min-height: auto; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .hero-stats strong { font-size: 2rem; }
  .scroll-down { display: none; }

  .about, .services, .capabilities, .naics, .projects, .clients, .contact { padding: 80px 0; }
  .naics-grid { grid-template-columns: 1fr; }
  .about-pillars { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: 1fr; }
  .project-grid {
    grid-template-columns: 1fr;
    grid-auto-rows: 220px;
  }
  .project-wide, .project-tall { grid-column: span 1; grid-row: span 1; }
  .client-logos { grid-template-columns: repeat(2, 1fr); }
  .contact-list li { grid-template-columns: 1fr; gap: 4px; }
  .contact-form { padding: 28px; }
  .contact-form .row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding-bottom: 32px; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .footer-bar { flex-direction: column; align-items: flex-start; }
}