:root {
  --color-primary: #285aa7;
  --color-primary-dark: #1e4785;
  --color-accent: #c8a04e;
  --color-accent-dark: #a6833b;
  --color-dark: #141a23;
  --color-text: #2d3748;
  --color-text-light: #5a6577;
  --color-text-muted: #8c95a3;
  --color-bg: #ffffff;
  --color-bg-alt: #f7f8fa;
  --color-border: #e2e6ec;
  --font-heading: 'Raleway', 'Open Sans', sans-serif;
  --font-sans: 'Open Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 6px;
  --radius-lg: 12px;
  --shadow: 0 4px 16px rgba(20,26,35,0.06);
  --shadow-lg: 0 12px 40px rgba(20,26,35,0.1);
  --container: 1140px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* { box-sizing: border-box; }

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  line-height: 1.7;
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

body > footer.site-footer { margin-top: auto; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent); }

/* --- Typography --- */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-dark);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 3.5vw, 2.25rem); }
h3 { font-size: 1.25rem; }

.section-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
  position: relative;
  display: inline-block;
}

.section-label::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 2rem;
  height: 2px;
  background: var(--color-accent);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  text-transform: uppercase;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: #fff;
}

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

.btn-outline:hover {
  background: var(--color-primary);
  color: #fff;
}

.btn-accent {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

.btn-accent:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  color: #fff;
}

/* --- Navbar --- */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 0;
}

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

.navbar-brand {
  height: 56px;
  width: auto;
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.navbar-links a {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-text);
}

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

.navbar-cta .btn {
  color: #fff;
  padding: 0.6rem 1.25rem;
  font-size: 0.8rem;
}
.navbar-cta .btn:hover { color: #fff; }

.navbar-cta {
  margin-left: 1rem;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle svg { width: 32px; height: 32px; }

/* --- Hero --- */
.hero {
  padding: 5rem 0;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -40px;
  width: 300px;
  height: 300px;
  background:
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 18px,
      rgba(40,90,167,0.03) 18px,
      rgba(40,90,167,0.03) 20px
    );
  border-radius: 50%;
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -80px;
  left: -60px;
  width: 250px;
  height: 250px;
  background:
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 14px,
      rgba(200,160,78,0.04) 14px,
      rgba(200,160,78,0.04) 16px
    );
  border-radius: 50%;
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero-content h1 {
  margin-bottom: 1.25rem;
}

.hero-content p {
  font-size: 1.1rem;
  color: var(--color-text-light);
  margin-bottom: 2rem;
  max-width: 500px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.hero-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.hero-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(40,90,167,0.1) 0%, transparent 60%);
  pointer-events: none;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4/3;
}

/* --- Services --- */
.services {
  padding: 5rem 0;
  background: var(--color-bg-alt);
  position: relative;
}

.services::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    repeating-conic-gradient(
      rgba(40,90,167,0.015) 0% 25%,
      transparent 0% 50%
    ) 0 0 / 40px 40px;
  pointer-events: none;
}

.services-header {
  text-align: center;
  margin-bottom: 3rem;
}

.services-header p {
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0.75rem auto 0;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.service-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow);
  border-top: 3px solid var(--color-accent);
  position: relative;
  z-index: 1;
}

.service-card-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
}

.service-card h3 {
  margin-bottom: 0.5rem;
}

.service-card p {
  font-size: 0.95rem;
  color: var(--color-text-light);
  margin: 0;
}

/* --- Feature block (image + text) --- */
.feature {
  padding: 5rem 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.feature-grid.reverse { direction: rtl; }
.feature-grid.reverse > * { direction: ltr; }

.feature-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.feature-image img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.feature-content h2 { margin-bottom: 1rem; }

.feature-content p {
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

/* --- Accordion --- */
.expertise {
  padding: 5rem 0;
  background: var(--color-bg-alt);
  position: relative;
}

.expertise::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    repeating-conic-gradient(
      rgba(40,90,167,0.015) 0% 25%,
      transparent 0% 50%
    ) 0 0 / 40px 40px;
  pointer-events: none;
}

.expertise-header {
  text-align: center;
  margin-bottom: 3rem;
}

.expertise-header p {
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0.75rem auto 0;
}

.accordion-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin: 0 auto;
  align-items: start;
}

.accordion-item {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border-left: 3px solid var(--color-border);
  transition: border-color var(--transition);
  position: relative;
  z-index: 1;
}

.accordion-item.open {
  border-left-color: var(--color-primary);
}

.accordion-header {
  padding: 1rem 1.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.accordion-header::after {
  content: '+';
  font-size: 1.25rem;
  color: var(--color-text-muted);
  transition: transform var(--transition);
}

.accordion-item.open .accordion-header::after {
  content: '−';
}

.accordion-body {
  padding: 0 1.5rem 1.25rem;
  font-size: 0.95rem;
  color: var(--color-text-light);
  display: none;
}

.accordion-item.open .accordion-body {
  display: block;
}

/* --- CTA / Offerte --- */
.cta-section {
  padding: 5rem 0;
}

.cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.cta-content h2 { margin-bottom: 1rem; }

.cta-content p {
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

.cta-contact-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
}

.cta-contact-item i {
  width: 32px;
  height: 32px;
  background: var(--color-bg-alt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 0.85rem;
}

.form-group { margin-bottom: 1rem; }

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-family: inherit;
  font-size: 0.9rem;
  transition: border-color var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
}

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

/* --- Projects slider --- */
.projects {
  padding: 5rem 0;
  background: var(--color-bg-alt);
  position: relative;
}

.projects::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background:
    repeating-conic-gradient(
      rgba(40,90,167,0.015) 0% 25%,
      transparent 0% 50%
    ) 0 0 / 40px 40px;
  pointer-events: none;
}

.projects-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
}

.projects-grid:has(.project-card:only-child) {
  max-width: 50%;
}

.project-card {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.project-card img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  transition: transform var(--transition);
}

.project-card:hover img {
  transform: scale(1.05);
}

/* --- Reviews --- */
.reviews {
  padding: 4rem 0;
  text-align: center;
}

.reviews-stars {
  color: var(--color-accent);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.reviews p {
  color: var(--color-text-light);
  margin-bottom: 1rem;
}

/* --- Footer --- */
.site-footer {
  background: #1e2a3a;
  color: #9aa8b8;
  padding: 3rem 0 1.5rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-brand h4 {
  color: #fff;
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: 0.9rem;
  color: #7a8a9e;
  max-width: 320px;
  line-height: 1.7;
}

.footer-col h5 {
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1.25rem;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col li { margin-bottom: 0.6rem; }

.footer-col a {
  color: #7a8a9e;
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-col a:hover { color: #fff; }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: #5a6577;
}

.footer-bottom a { color: #6b7688; transition: color var(--transition); }
.footer-bottom a:hover { color: #fff; }

/* --- Side contact buttons --- */
.side-contact {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 90;
}

.side-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: var(--shadow);
  transition: transform var(--transition), background var(--transition);
}

.side-btn:hover {
  transform: scale(1.1);
  background: var(--color-primary-dark);
  color: #fff;
}

/* --- Content pages --- */
.content-page {
  padding: 3rem 0 4rem;
}

.content-page h1 {
  margin-top: 0;
  margin-bottom: 1.5rem;
  font-size: 1.75rem;
}

.content-page h2 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  font-size: 1.1rem;
}

.content-page p, .content-page li {
  color: var(--color-text-light);
  font-size: 0.95rem;
  line-height: 1.8;
}

.content-page ol {
  padding-left: 1.5rem;
}

.content-page ol li {
  margin-bottom: 0.75rem;
}

/* --- Project sections --- */
.projects-page {
  padding-top: 2rem;
}

.project-section {
  margin-bottom: 2.5rem;
}

.project-section h3 {
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--color-border);
}

/* --- 404 --- */
.error-404 {
  font-size: 5rem;
  font-weight: 800;
  color: var(--color-primary);
}

.page-404 {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  text-align: center;
}

/* --- Alert messages --- */
.alert { padding: 0.75rem 1rem; border-radius: var(--radius); font-size: 0.9rem; margin-top: 1rem; }
.alert-success { background: #d4edda; color: #155724; }
.alert-warning { background: #fff3cd; color: #856404; }
.alert-danger { background: #f8d7da; color: #721c24; }
.d-none { display: none; }

/* --- Responsive --- */
@media (max-width: 992px) {
  .hero-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .feature-grid,
  .feature-grid.reverse { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .cta-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .accordion-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .navbar-links { display: none; }
  .menu-toggle { display: block; }

  .hero { padding: 3rem 0; }
  .hero-grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .hero-image { order: -1; }
  .hero-content h1 { margin-bottom: 0.75rem; }
  .hero-content p { margin-bottom: 1.25rem; }

  .services { padding: 3rem 0; }
  .services-grid { grid-template-columns: 1fr; }

  .feature { padding: 3rem 0; }
  .feature-grid,
  .feature-grid.reverse { grid-template-columns: 1fr; gap: 1.5rem; }
  .feature-grid.reverse > :first-child { order: -1; }

  .expertise { padding: 3rem 0; }
  .accordion-grid { grid-template-columns: 1fr; }

  .cta-section { padding: 3rem 0; }
  .cta-grid { grid-template-columns: 1fr; gap: 2rem; }

  .projects { padding: 3rem 0; }
  .projects-grid { grid-template-columns: 1fr 1fr; }
  .projects-header { flex-direction: column; align-items: flex-start; gap: 1rem; }

  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
}

@media (max-width: 480px) {
  .projects-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}

/* --- Mobile menu --- */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 200;
  visibility: hidden;
  opacity: 0;
  transition: all var(--transition);
}

.mobile-menu.open {
  visibility: visible;
  opacity: 1;
}

.mobile-menu-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.5);
}

.mobile-menu-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 300px;
  background: #1e2a3a;
  padding: 2.5rem 2rem;
  transform: translateX(100%);
  transition: transform var(--transition);
}

.mobile-menu.open .mobile-menu-panel {
  transform: translateX(0);
}

.mobile-menu-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.75rem;
  color: #fff;
}

.mobile-menu-links {
  list-style: none;
  padding: 0;
  margin: 3rem 0 0;
}

.mobile-menu-links li {
  margin-bottom: 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.mobile-menu-links a {
  display: block;
  padding: 1rem 0;
  font-size: 1.05rem;
  font-weight: 600;
  color: rgba(255,255,255,0.85);
  transition: color var(--transition);
}

.mobile-menu-links a:hover {
  color: var(--color-accent);
}

.mobile-menu-links .btn {
  margin-top: 1rem;
  width: 100%;
  justify-content: center;
  color: #fff;
  text-align: center;
  padding: 0.75rem 1.5rem;
  border-color: var(--color-primary);
  background: var(--color-primary);
}