:root {
  --navy: #0b2545;
  --navy-dark: #071a33;
  --navy-soft: #13315c;
  --gold: #c9a227;
  --gold-light: #e0c15c;
  --ink: #1b2430;
  --gray: #5b6472;
  --line: #e4e8ee;
  --bg-alt: #f6f8fb;
  --white: #ffffff;
  --radius: 12px;
  --shadow: 0 10px 30px rgba(11, 37, 69, 0.08);
  --shadow-lg: 0 18px 44px rgba(11, 37, 69, 0.14);
  --font: "Be Vietnam Pro", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--ink);
  line-height: 1.65;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--gold);
  color: var(--navy-dark);
  padding: 10px 18px;
  font-weight: 700;
  z-index: 100;
}
.skip-link:focus { left: 12px; top: 12px; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 { line-height: 1.25; margin: 0 0 16px; color: var(--navy); }
h1 { font-size: clamp(2.1rem, 4.4vw, 3.35rem); font-weight: 800; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.6rem, 3vw, 2.25rem); font-weight: 700; letter-spacing: -0.01em; }
h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
h4 { font-size: 1.02rem; font-weight: 700; margin-bottom: 6px; }
p { margin: 0 0 16px; color: var(--gray); }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--gold);
  margin: 0 0 10px;
}

.btn {
  display: inline-block;
  padding: 13px 30px;
  border-radius: 999px;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.15s ease, background 0.15s ease, color 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--gold); color: var(--navy-dark); box-shadow: 0 8px 20px rgba(201, 162, 39, 0.25); }
.btn-primary:hover { background: var(--gold-light); }
.btn-ghost { border-color: rgba(255,255,255,0.45); color: var(--white); }
.btn-ghost:hover { background: rgba(255,255,255,0.12); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  transition: box-shadow 0.2s ease;
}
.site-header.scrolled { box-shadow: 0 6px 20px rgba(11, 37, 69, 0.08); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}
.logo { display: flex; align-items: center; gap: 9px; font-weight: 800; font-size: 1.12rem; color: var(--navy); }
.logo-mark {
  background: var(--navy);
  color: var(--gold);
  padding: 6px 11px;
  border-radius: 7px;
  letter-spacing: 0.05em;
}
.nav { display: flex; align-items: center; gap: 26px; }
.nav a { font-weight: 600; font-size: 0.95rem; color: var(--ink); transition: color 0.15s ease; }
.nav a:hover { color: var(--gold); }
.nav a.active { color: var(--navy); }
.nav-cta {
  background: var(--navy);
  color: var(--white) !important;
  padding: 10px 20px;
  border-radius: 999px;
}
.nav-cta:hover { background: var(--navy-soft); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--navy); display: block; transition: transform 0.2s ease, opacity 0.2s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1000px 460px at 82% -12%, rgba(201, 162, 39, 0.22), transparent 62%),
    linear-gradient(135deg, var(--navy) 0%, var(--navy-dark) 100%);
  color: var(--white);
  padding: 116px 0 104px;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to bottom, rgba(0,0,0,0.6), transparent 78%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,0.6), transparent 78%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 1; max-width: 760px; }
.hero .eyebrow { color: var(--gold-light); }
.hero h1 { color: var(--white); }
.hero-lede { color: rgba(255,255,255,0.84); font-size: 1.12rem; max-width: 640px; }
.hero-actions { display: flex; gap: 16px; margin-top: 20px; flex-wrap: wrap; }
.hero-tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0;
  margin: 34px 0 0;
}
.hero-tags li {
  font-size: 0.85rem;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  border: 1px solid rgba(255,255,255,0.24);
  background: rgba(255,255,255,0.06);
  border-radius: 999px;
  padding: 7px 16px;
}

/* Stats */
.stats { background: var(--bg-alt); border-bottom: 1px solid var(--line); }
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  padding: 44px 24px;
  text-align: center;
}
.stat-num { display: block; font-size: 2.2rem; font-weight: 800; color: var(--navy); line-height: 1.1; }
.stat-label { font-size: 0.82rem; color: var(--gray); text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600; }

/* Sections */
.section { padding: 92px 0; }
.section-alt { background: var(--bg-alt); }
.section-lede { max-width: 680px; font-size: 1.05rem; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.55s ease, transform 0.55s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .btn:hover, .portfolio-card:hover, .project-card:hover, .news-card:hover { transform: none; }
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: start;
}
.about-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 24px; }
.about-badges span {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--navy);
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 15px;
}
.about-values { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.value-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}
.value-card p { margin: 0; font-size: 0.92rem; }

/* Cards grids */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 40px;
}
.services-grid, .news-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
  margin-top: 40px;
}
.news-grid { grid-template-columns: repeat(3, 1fr); }
.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-top: 40px;
}
.portfolio-card, .service-card, .news-card, .project-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.portfolio-card:hover, .project-card:hover, .news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(201, 162, 39, 0.5);
}
.portfolio-card { border-top: 3px solid var(--gold); }
.portfolio-card p, .service-card p, .project-card p { margin: 0; font-size: 0.94rem; }
.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(11, 37, 69, 0.06);
  color: var(--navy);
  margin-bottom: 16px;
}
.card-icon svg { width: 25px; height: 25px; }
.portfolio-card:hover .card-icon { background: rgba(201, 162, 39, 0.16); color: var(--gold); }

.service-card { border-left: 3px solid var(--navy); }

.project-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--navy);
  background: rgba(201, 162, 39, 0.16);
  border-radius: 999px;
  padding: 4px 12px;
  margin-bottom: 12px;
}
.news-date {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}
.news-card p { margin: 0; font-size: 0.94rem; }

/* Process */
.process { margin-top: 72px; }
.process-title { font-size: 1.35rem; margin-bottom: 26px; }
.process-steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.process-steps li {
  position: relative;
  padding-top: 22px;
  border-top: 2px solid var(--line);
}
.process-steps li::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gold);
}
.step-num {
  display: block;
  font-size: 0.82rem;
  font-weight: 800;
  color: var(--gold);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}
.process-steps p { margin: 0; font-size: 0.92rem; }

/* CTA band */
.cta-band { background: var(--navy); color: var(--white); padding: 56px 0; }
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.cta-band h2 { color: var(--white); margin-bottom: 8px; font-size: clamp(1.4rem, 2.4vw, 1.85rem); }
.cta-band p { color: rgba(255,255,255,0.78); margin: 0; }

/* Contact */
.contact-section { background: var(--navy-dark); color: var(--white); }
.contact-section h2 { color: var(--white); }
.contact-section .eyebrow { color: var(--gold-light); }
.contact-section .section-lede { color: rgba(255,255,255,0.8); }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start; }
.contact-list { list-style: none; padding: 0; margin: 26px 0 0; }
.contact-list li { margin-bottom: 12px; color: rgba(255,255,255,0.85); }
.contact-list a { color: var(--gold-light); font-weight: 600; }
.contact-form {
  background: var(--white);
  border-radius: var(--radius);
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  box-shadow: var(--shadow-lg);
}
.contact-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--navy);
}
.contact-form input, .contact-form textarea, .contact-form select {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 11px 12px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--ink);
  background: var(--white);
  resize: vertical;
}
.contact-form input:focus, .contact-form textarea:focus, .contact-form select:focus {
  outline: 2px solid var(--gold);
  outline-offset: 1px;
}
.contact-form input:invalid:not(:placeholder-shown) { border-color: #d9534f; }
.contact-form .btn { align-self: flex-start; }
.form-note { color: var(--navy); font-weight: 600; margin: 0; }

/* Footer */
.site-footer { background: var(--navy-dark); color: rgba(255,255,255,0.62); }
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  padding-top: 56px;
  padding-bottom: 40px;
}
.footer-brand p { color: rgba(255,255,255,0.6); font-size: 0.9rem; margin: 16px 0 0; max-width: 340px; }
.footer-brand .logo { color: var(--white); }
.footer-col h4 { color: var(--white); font-size: 0.95rem; margin-bottom: 14px; }
.footer-col ul { list-style: none; padding: 0; margin: 0; }
.footer-col li { margin-bottom: 9px; font-size: 0.9rem; }
.footer-col a { color: rgba(255,255,255,0.62); transition: color 0.15s ease; }
.footer-col a:hover { color: var(--gold-light); }
.footer-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.85rem;
  border-top: 1px solid rgba(255,255,255,0.12);
  padding-top: 20px;
  padding-bottom: 24px;
}
.footer-inner p { margin: 0; color: inherit; }

/* Back to top */
.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 40;
}
.back-to-top.show { opacity: 1; visibility: visible; transform: none; }
.back-to-top:hover { background: var(--gold); color: var(--navy-dark); }

/* Responsive */
@media (max-width: 1040px) {
  .portfolio-grid, .services-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 880px) {
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .news-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .cta-inner { flex-direction: column; align-items: flex-start; }
}
@media (max-width: 720px) {
  .nav {
    position: absolute;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: flex-start;
    padding: 20px 24px 24px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 24px rgba(11, 37, 69, 0.1);
    display: none;
    gap: 18px;
  }
  .nav.open { display: flex; }
  .nav-toggle { display: flex; }
  .about-values, .portfolio-grid, .services-grid, .news-grid, .project-grid, .process-steps {
    grid-template-columns: 1fr;
  }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .hero { padding: 76px 0 66px; }
  .section { padding: 62px 0; }
  .btn { width: 100%; text-align: center; }
  .hero-actions { width: 100%; }
  .contact-form .btn { align-self: stretch; }
}