:root {
  --blue: #1f4f7b;
  --blue-dark: #163754;
  --silver: #e3e7ec;
  --silver-dark: #c2c7cf;
  --black: #111318;
  --text: #1f2227;
  --accent: #f6b10a;
  --white: #ffffff;
}

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

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background: #f5f6f8;
}

a {
  color: var(--blue);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Header */

.site-header {
  background: var(--blue-dark);
  color: var(--white);
  padding: 0.75rem 0;
  border-bottom: 3px solid var(--accent);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo-main {
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.logo-sub {
  display: block;
  font-size: 0.8rem;
  opacity: 0.8;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.main-nav a {
  color: var(--silver);
  font-size: 0.95rem;
}

.main-nav a.active {
  color: var(--white);
  font-weight: 600;
}

.btn-nav {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--accent);
  background: var(--accent);
  color: var(--black) !important;
  font-weight: 600;
}

/* Hero */

.hero {
  background: linear-gradient(135deg, var(--blue-dark), var(--black));
  color: var(--white);
  padding: 3rem 0 3.5rem;
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1.4fr);
  gap: 2rem;
  align-items: center;
}

.hero h1 {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.hero p {
  margin-top: 0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.25rem 0;
}

.hero-service-area {
  font-size: 0.9rem;
  opacity: 0.9;
}

.hero-panel .hero-card {
  background: rgba(10, 14, 20, 0.9);
  border-radius: 0.75rem;
  padding: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Buttons */

.btn {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  text-decoration: none;
}

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

.btn.secondary {
  background: var(--silver-dark);
  color: var(--black);
  border-color: var(--silver-dark);
}

.btn.outline {
  background: transparent;
  color: var(--white);
  border-color: var(--white);
}

/* Sections */

.section {
  padding: 2.5rem 0;
  background: #f5f6f8;
}

.section-light {
  background: var(--white);
}

.section-dark {
  background: var(--blue-dark);
  color: var(--white);
}

.section-cta {
  background: var(--blue);
  color: var(--white);
}

.section h2 {
  margin-top: 0;
  margin-bottom: 1rem;
}

/* Grids & Cards */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--white);
  border-radius: 0.75rem;
  padding: 1.25rem;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.04);
  border: 1px solid #dde1e7;
}

.card-dark {
  background: rgba(10, 14, 20, 0.9);
  border-color: rgba(255, 255, 255, 0.1);
}

/* Page hero */

.page-hero {
  background: var(--blue);
  color: var(--white);
  padding: 2.25rem 0;
}

.page-hero h1 {
  margin: 0 0 0.5rem;
}

/* Lists */

.service-list {
  padding-left: 1.2rem;
}

.service-list li {
  margin-bottom: 0.35rem;
}

/* About */

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1.4fr);
  gap: 2rem;
}

.about-panel .card {
  height: 100%;
}

/* Contact */

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1.6fr);
  gap: 2rem;
}

.contact-form label {
  display: block;
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.5rem 0.6rem;
  border-radius: 0.4rem;
  border: 1px solid #cfd3da;
  font: inherit;
  margin-top: 0.25rem;
}

.contact-form button {
  margin-top: 0.75rem;
}

.form-note {
  font-size: 0.8rem;
  color: #555;
  margin-top: 0.5rem;
}

/* Gallery */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1rem;
}

.gallery-item {
  background: var(--white);
  border-radius: 0.75rem;
  padding: 0.75rem;
  border: 1px solid #dde1e7;
}

.gallery-placeholder {
  border-radius: 0.5rem;
  border: 1px dashed #b3b8c2;
  padding: 2.5rem 1rem;
  text-align: center;
  font-size: 0.9rem;
  color: #6b7280;
}

/* Footer */

.site-footer {
  background: var(--black);
  color: var(--silver);
  padding: 2rem 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 1.5rem;
}

.site-footer a {
  color: var(--silver);
}

/* Utilities */

.center {
  text-align: center;
}

.mt-lg {
  margin-top: 2rem;
}

/* Responsive */

@media (max-width: 800px) {
  .hero-inner,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .header-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .main-nav {
    justify-content: flex-start;
  }
}