:root {
  --color-primary: #1a3c5e;
  --color-primary-light: #2a5a8a;
  --color-secondary: #c8963e;
  --color-secondary-light: #e0b15e;
  --color-accent: #e8f0f8;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f8fb;
  --color-text: #1a1a2e;
  --color-text-light: #5a6a7a;
  --color-text-inverse: #ffffff;
  --color-border: #d0d8e0;
  --color-footer-bg: #0f2638;
  --color-footer-text: #b0c4d8;
  --font-primary: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-heading: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --max-width: 1200px;
  --nav-height: 72px;
  --border-radius: 8px;
  --shadow-sm: 0 2px 8px rgba(26,60,94,0.08);
  --shadow-md: 0 4px 20px rgba(26,60,94,0.12);
  --transition: 0.25s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-primary);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--color-primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-secondary); }

img { max-width: 100%; display: block; }

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

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  display: flex;
  align-items: center;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.navbar-brand {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.navbar-brand span { color: var(--color-secondary); }

.navbar-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.navbar-links a {
  color: var(--color-text);
  font-size: 0.925rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.navbar-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-secondary);
  transition: width var(--transition);
}

.navbar-links a:hover::after,
.navbar-links a.active::after { width: 100%; }

.navbar-links a.active { color: var(--color-primary); }

.btn-nav-cta {
  background: var(--color-primary);
  color: var(--color-text-inverse) !important;
  padding: 8px 22px !important;
  border-radius: var(--border-radius);
  font-weight: 600;
  transition: background var(--transition);
}

.btn-nav-cta:hover { background: var(--color-primary-light) !important; }
.btn-nav-cta::after { display: none !important; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* Hero */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(135deg, var(--color-primary) 0%, #0f2638 100%);
  color: var(--color-text-inverse);
  text-align: center;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero p {
  font-size: 1.15rem;
  max-width: 680px;
  margin: 0 auto 36px;
  color: rgba(255,255,255,0.85);
  line-height: 1.8;
}

.hero-btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--border-radius);
  font-size: 1rem;
  font-weight: 600;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-secondary);
  color: var(--color-text-inverse);
  border-color: var(--color-secondary);
}

.btn-primary:hover {
  background: var(--color-secondary-light);
  border-color: var(--color-secondary-light);
  color: var(--color-text-inverse);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-inverse);
  border-color: rgba(255,255,255,0.5);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--color-text-inverse);
  color: var(--color-text-inverse);
}

.btn-secondary {
  background: var(--color-accent);
  color: var(--color-primary);
  border-color: var(--color-accent);
}

.btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  border-color: var(--color-primary);
}

/* Page hero band */
.page-hero {
  padding: 120px 0 60px;
  background: linear-gradient(135deg, var(--color-primary) 0%, #0f2638 100%);
  color: var(--color-text-inverse);
  text-align: center;
}

.page-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 12px;
}

.page-hero p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.8);
  max-width: 600px;
  margin: 0 auto;
}

/* Sections */
.section {
  padding: 80px 0;
}

.section-alt { background: var(--color-bg-alt); }

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  margin-bottom: 16px;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto 48px;
  font-size: 1.05rem;
}

/* Value props strip */
.value-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: -40px;
  position: relative;
  z-index: 2;
}

.value-card {
  background: var(--color-bg);
  padding: 32px 28px;
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  border-top: 4px solid var(--color-secondary);
}

.value-card .icon { font-size: 2rem; margin-bottom: 16px; }
.value-card h3 { font-size: 1.15rem; color: var(--color-primary); margin-bottom: 8px; }
.value-card p { font-size: 0.925rem; color: var(--color-text-light); line-height: 1.7; }

/* Services grid */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 32px 28px;
  transition: transform var(--transition), box-shadow var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.service-card .icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.service-card p {
  font-size: 0.925rem;
  color: var(--color-text-light);
  line-height: 1.7;
}

/* About strip */
.about-strip {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-strip h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  color: var(--color-primary);
  margin-bottom: 20px;
}

.about-strip p {
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.about-strip-visual {
  background: var(--color-accent);
  border-radius: var(--border-radius);
  padding: 48px;
  text-align: center;
  font-size: 4rem;
}

/* Credentials strip */
.credentials {
  background: var(--color-primary);
  color: var(--color-text-inverse);
  padding: 48px 0;
  text-align: center;
}

.credentials-grid {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.cred-item {
  text-align: center;
}

.cred-item .label {
  display: block;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.6);
  margin-bottom: 4px;
}

.cred-item .value {
  display: block;
  font-size: 1.1rem;
  font-weight: 600;
}

/* CTA strip */
.cta-strip {
  background: var(--color-bg-alt);
  text-align: center;
  padding: 64px 0;
}

.cta-strip h2 {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  color: var(--color-primary);
  margin-bottom: 12px;
}

.cta-strip p {
  color: var(--color-text-light);
  margin-bottom: 28px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* Page content */
.page-content {
  padding: 60px 0;
}

.page-content h2 {
  font-size: 1.5rem;
  color: var(--color-primary);
  margin: 32px 0 16px;
}

.page-content h3 {
  font-size: 1.2rem;
  color: var(--color-primary);
  margin: 24px 0 12px;
}

.page-content p {
  color: var(--color-text-light);
  margin-bottom: 16px;
  line-height: 1.8;
}

.page-content ul {
  color: var(--color-text-light);
  padding-left: 24px;
  margin-bottom: 16px;
}

.page-content ul li { margin-bottom: 8px; }

/* Contact grid */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.contact-info h3 {
  font-size: 1.2rem;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.contact-info-item {
  display: flex;
  gap: 16px;
  margin-bottom: 20px;
}

.contact-info-item .icon { font-size: 1.3rem; flex-shrink: 0; }

.contact-info-item .detail h4 {
  font-size: 0.95rem;
  color: var(--color-primary);
  margin-bottom: 2px;
}

.contact-info-item .detail p {
  color: var(--color-text-light);
  font-size: 0.925rem;
}

.contact-form h3 {
  font-size: 1.2rem;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.form-group { margin-bottom: 18px; }

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  font-family: var(--font-primary);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
}

.form-group textarea { resize: vertical; min-height: 120px; }

/* Footer */
.footer {
  background: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-col h4 {
  color: var(--color-text-inverse);
  font-size: 1.05rem;
  margin-bottom: 16px;
}

.footer-col p {
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 8px;
}

.footer-col ul {
  list-style: none;
}

.footer-col ul li { margin-bottom: 10px; }

.footer-col ul li a {
  color: var(--color-footer-text);
  font-size: 0.9rem;
}

.footer-col ul li a:hover { color: var(--color-secondary); }

.footer-brand {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-text-inverse);
  margin-bottom: 12px;
}

.footer-brand span { color: var(--color-secondary); }

.footer-bottom {
  padding: 24px 0;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
}

/* Mobile */
@media (max-width: 768px) {
  .hamburger { display: flex; }

  .navbar-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-bg);
    flex-direction: column;
    padding: 20px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }

  .navbar-links.open { display: flex; }

  .value-strip {
    grid-template-columns: 1fr;
    margin-top: 0;
    gap: 20px;
  }

  .services-grid { grid-template-columns: 1fr; }

  .about-strip {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .about-strip-visual { order: -1; }

  .footer-grid { grid-template-columns: 1fr 1fr; }

  .contact-grid { grid-template-columns: 1fr; }

  .hero { padding: 120px 0 60px; }
  .section { padding: 48px 0; }

  .credentials-grid { gap: 24px; }
}