:root {
  --primary-color: #2C3E50;
  --secondary-color: #27AE60;
  --text-color: #374151;
  --light-bg: #F8FAFC;
  --dark-bg: #1E293B;
  --accent-color: #E67E22;
  --gradient-start: #1E293B;
  --gradient-end: #2563EB;
  --font-main: 'Open Sans', sans-serif;
  --font-heading: 'Montserrat', sans-serif;
  --section-spacing: 6rem;
  --content-spacing: 2rem;
}

/* Reset & Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-main);
  color: var(--text-color);
  line-height: 1.7;
  background-color: var(--light-bg);
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--primary-color);
  line-height: 1.2;
  font-weight: 700;
  margin-bottom: 1rem;
}

p {
  margin-bottom: 1.5rem;
}

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

/* Layout & Containers */
.content-wrapper {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--content-spacing);
}

/* Header & Navigation */
header {
  background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
  color: white;
  padding: 1rem 0;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 15px rgba(0,0,0,0.1);
}

.navbar {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--content-spacing);
  height: 60px;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
}

.logo a {
  color: white;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: white;
  text-decoration: none;
  font-weight: 600;
  padding: 0.75rem 1.25rem;
  border-radius: 25px;
  transition: all 0.3s ease;
  font-size: 1.05rem;
}

.nav-links a:hover,
.nav-links a.active {
  background: rgba(255,255,255,0.15);
  transform: translateY(-2px);
}

.nav-links a i {
  margin-right: 0.5rem;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.6)), url('../img/Amsterdam_-_Houses_-_1373.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-align: center;
  padding: 0;
  margin: 0;
  position: relative;
}

.hero-content {
  max-width: 1000px;
  width: 90%;
  margin: 0 auto;
  padding: 2rem;
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin: 0;
  line-height: 1.2;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
  color: white;
}

.hero-subtitle {
  font-size: 1.75rem;
  font-weight: 600;
  color: white;
  opacity: 0.95;
  margin: 0;
}

.hero-description {
  font-size: 1.2rem;
  max-width: 800px;
  line-height: 1.8;
  color: white;
  opacity: 0.9;
  margin: 0.5rem 0 1.5rem;
}

.hero .cta-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* Page Headers */
.page-header {
  min-height: 50vh;
  background: linear-gradient(rgba(0,0,0,0.7), rgba(0,0,0,0.7)), url('../img/raadhuisstraat-21-amsterdam-foto-2-3e6b85-1024.jpg');
  background-size: cover;
  background-position: center;
  color: white;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  margin-top: 60px;
  padding: 4rem var(--content-spacing);
}

.page-header h1 {
  font-size: 3.5rem;
  color: white;
  margin-bottom: 1rem;
  text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.page-header p {
  font-size: 1.5rem;
  color: white;
  margin: 0;
  opacity: 0.95;
}

/* Content Sections */
.section {
  padding: var(--section-spacing) 0;
  margin: 0;
}

.section-title {
  font-size: 2.75rem;
  text-align: center;
  margin-bottom: 4rem;
  position: relative;
  padding-bottom: 1.5rem;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 120px;
  height: 4px;
  background: linear-gradient(to right, var(--secondary-color), var(--accent-color));
  border-radius: 2px;
}

/* Content Grid */
.content-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 4rem;
  align-items: center;
  margin: 0 auto;
  padding: 0 var(--content-spacing);
  max-width: 1400px;
}

.content-grid.reversed {
  direction: rtl;
}

.content-grid.reversed > * {
  direction: ltr;
}

.text-content {
  padding: 2rem 0;
}

.text-content h2 {
  font-size: 2.25rem;
  margin-bottom: 1.5rem;
}

.text-content h3 {
  font-size: 1.5rem;
  margin: 2rem 0 1rem;
}

.text-content ul {
  list-style-type: none;
  margin-bottom: 1.5rem;
}

.text-content ul li {
  padding-left: 1.75rem;
  position: relative;
  margin-bottom: 0.75rem;
}

.text-content ul li::before {
  content: '•';
  color: var(--secondary-color);
  font-size: 1.4rem;
  position: absolute;
  left: 0;
  top: -0.1rem;
}

.image-content img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

/* Cards */
.highlights-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2.5rem;
  margin: 0 auto;
  padding: 0 var(--content-spacing);
  max-width: 1400px;
}

.card {
  background: white;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  transition: transform 0.3s ease;
}

.card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 25px rgba(0,0,0,0.1);
}

.card-content img {
  width: 100%;
  height: 250px;
  object-fit: cover;
}

.card-content {
  padding: 0;
}

.card-content h3 {
  padding: 1.5rem 1.5rem 1rem;
  margin: 0;
}

.card-content p {
  padding: 0 1.5rem;
  margin-bottom: 1rem;
}

.card-content .read-more {
  display: inline-block;
  padding: 0 1.5rem 1.5rem;
  color: var(--secondary-color);
  text-decoration: none;
  font-weight: 600;
}

/* Info Blocks */
.info-blocks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2.5rem;
  margin: 0 auto;
  padding: 0 var(--content-spacing);
  max-width: 1400px;
}

.info-block {
  background: white;
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 4px 6px rgba(0,0,0,0.05);
  transition: transform 0.3s ease;
}

.info-block:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin: 2rem auto;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 1rem 2rem;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 50px;
  transition: all 0.3s ease;
  color: white;
  background: var(--secondary-color);
  text-align: center;
  margin: 0.5rem;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 15px rgba(39,174,96,0.3);
}

.btn-outline {
  background: transparent;
  border: 2px solid white;
}

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

/* Footer */
footer {
  background: var(--dark-bg);
  color: white;
  padding: 4rem var(--content-spacing) 2rem;
  margin-top: var(--section-spacing);
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
}

.footer-section h3 {
  color: white;
  margin-bottom: 1.5rem;
}

.footer-section a {
  color: white;
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-section a:hover {
  color: var(--secondary-color);
}

.footer-bottom {
  text-align: center;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
}

/* Mobile Navigation */
.mobile-nav-toggle {
  display: none;
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Responsive Design */
@media (max-width: 1024px) {
  html {
    font-size: 15px;
  }

  .hero h1 {
    font-size: 3rem;
  }
}

@media (max-width: 768px) {
  .mobile-nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--gradient-start);
    flex-direction: column;
    padding: 1rem;
    text-align: center;
  }

  .nav-links.active {
    display: flex;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .hero-subtitle {
    font-size: 1.25rem;
  }

  .hero-content {
    padding: 1rem;
    gap: 0.75rem;
  }

  .content-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .content-grid.reversed {
    direction: ltr;
  }

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

  .image-content img {
    height: 300px;
  }

  .hero .cta-buttons {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    margin: 0.5rem 0;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

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

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .page-header h1 {
    font-size: 2rem;
  }

  .page-header p {
    font-size: 1.1rem;
  }

  .section-title {
    font-size: 2rem;
  }

  .card-content,
  .info-block {
    padding: 1.5rem;
  }
}