/* ====================================
   Maasland.net - Main Stylesheet
   Production-Ready CSS Framework
   ==================================== */

/* === CSS Variables & Design System === */
:root {
  /* Color Palette - Dutch Heritage Inspired */
  --primary-color: #0066A1;
  --primary-dark: #004E7A;
  --primary-light: #3385B8;
  --secondary-color: #E67E22;
  --secondary-dark: #D35400;
  --accent-color: #27AE60;
  --accent-light: #2ECC71;

  /* Neutral Colors */
  --color-white: #FFFFFF;
  --color-light: #F8F9FA;
  --color-gray-100: #E9ECEF;
  --color-gray-200: #DEE2E6;
  --color-gray-300: #CED4DA;
  --color-gray-400: #ADB5BD;
  --color-gray-500: #6C757D;
  --color-gray-600: #495057;
  --color-gray-700: #343A40;
  --color-gray-800: #212529;
  --color-dark: #1A1A1A;

  /* Typography */
  --font-primary: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --font-heading: 'Georgia', 'Times New Roman', serif;
  --font-mono: 'Courier New', monospace;

  /* Font Sizes - Responsive Scale */
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --fs-lg: 1.125rem;
  --fs-xl: 1.25rem;
  --fs-2xl: 1.5rem;
  --fs-3xl: 1.875rem;
  --fs-4xl: 2.25rem;
  --fs-5xl: 3rem;
  --fs-6xl: 3.75rem;

  /* Spacing System */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;

  /* Layout */
  --container-width: 1200px;
  --container-padding: 1.5rem;
  --border-radius: 8px;
  --border-radius-sm: 4px;
  --border-radius-lg: 12px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.12);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
  --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.2);

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;

  /* Z-Index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* === CSS Reset & Base Styles === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-primary);
  font-size: var(--fs-base);
  line-height: 1.6;
  color: var(--color-gray-800);
  background-color: var(--color-white);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-lg);
  color: var(--color-gray-800);
}

h1 { font-size: var(--fs-5xl); }
h2 { font-size: var(--fs-4xl); }
h3 { font-size: var(--fs-3xl); }
h4 { font-size: var(--fs-2xl); }
h5 { font-size: var(--fs-xl); }
h6 { font-size: var(--fs-lg); }

p {
  margin-bottom: var(--spacing-md);
  line-height: 1.8;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

strong, b {
  font-weight: 700;
}

em, i {
  font-style: italic;
}

/* === Layout Containers === */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
  width: 100%;
}

.container-fluid {
  width: 100%;
  padding: 0 var(--container-padding);
}

/* === Header & Navigation === */
.header {
  background-color: var(--color-white);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  transition: box-shadow var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg) 0;
}

.nav-brand {
  font-family: var(--font-heading);
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.nav-brand:hover {
  color: var(--primary-dark);
  text-decoration: none;
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
  align-items: center;
}

.nav-link {
  color: var(--color-gray-700);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-fast);
  position: relative;
}

.nav-link:hover {
  color: var(--primary-color);
  background-color: var(--color-gray-100);
  text-decoration: none;
}

.nav-link.active {
  color: var(--primary-color);
  font-weight: 600;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: var(--spacing-md);
  right: var(--spacing-md);
  height: 2px;
  background-color: var(--primary-color);
}

/* Mobile Menu Toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.nav-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--color-gray-700);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* === Hero Section === */
.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
  color: var(--color-white);
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.1" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,138.7C960,139,1056,117,1152,101.3C1248,85,1344,75,1392,69.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
  background-size: cover;
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
  padding: var(--spacing-3xl) var(--spacing-md);
}

.hero-title {
  font-size: var(--fs-6xl);
  color: var(--color-white);
  margin-bottom: var(--spacing-lg);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: var(--fs-2xl);
  color: var(--color-white);
  margin-bottom: var(--spacing-2xl);
  opacity: 0.95;
}

.hero-cta {
  display: inline-flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  justify-content: center;
}

/* === Buttons === */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--fs-base);
  font-weight: 600;
  text-align: center;
  border: 2px solid transparent;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  line-height: 1.5;
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

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

.btn-secondary:hover {
  background-color: var(--secondary-dark);
  border-color: var(--secondary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  text-decoration: none;
}

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

.btn-outline:hover {
  background-color: var(--color-white);
  color: var(--primary-color);
  text-decoration: none;
}

.btn-lg {
  padding: var(--spacing-lg) var(--spacing-2xl);
  font-size: var(--fs-lg);
}

/* === Sections === */
.section {
  padding: var(--spacing-4xl) 0;
}

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

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-size: var(--fs-4xl);
  color: var(--primary-color);
  margin-bottom: var(--spacing-md);
}

.section-subtitle {
  font-size: var(--fs-lg);
  color: var(--color-gray-600);
  max-width: 700px;
  margin: 0 auto;
}

/* === Cards === */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  margin-top: var(--spacing-2xl);
}

.card {
  background-color: var(--color-white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  display: flex;
  flex-direction: column;
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  background-color: var(--color-gray-200);
}

.card-content {
  padding: var(--spacing-lg);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: var(--fs-xl);
  color: var(--primary-color);
  margin-bottom: var(--spacing-sm);
}

.card-text {
  color: var(--color-gray-600);
  margin-bottom: var(--spacing-md);
  flex-grow: 1;
}

.card-link {
  color: var(--primary-color);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-top: auto;
}

.card-link:hover {
  gap: var(--spacing-md);
}

/* === Content Pages === */
.page-header {
  background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
  color: var(--color-white);
  padding: var(--spacing-3xl) 0;
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.page-title {
  font-size: var(--fs-5xl);
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.page-description {
  font-size: var(--fs-xl);
  color: var(--color-white);
  opacity: 0.95;
  max-width: 800px;
  margin: 0 auto;
}

.content {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.content img {
  max-width: 100%;
  height: auto;
  border-radius: var(--border-radius);
  margin: var(--spacing-xl) 0;
  box-shadow: var(--shadow-md);
}

.content ul, .content ol {
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-xl);
}

.content li {
  margin-bottom: var(--spacing-sm);
  line-height: 1.8;
}

.content blockquote {
  border-left: 4px solid var(--primary-color);
  padding-left: var(--spacing-lg);
  margin: var(--spacing-xl) 0;
  font-style: italic;
  color: var(--color-gray-600);
}

/* === Map Container === */
.map-container {
  width: 100%;
  height: 500px;
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin: var(--spacing-2xl) 0;
}

#map {
  width: 100%;
  height: 100%;
}

/* === Footer === */
.footer {
  background-color: var(--color-gray-800);
  color: var(--color-white);
  padding: var(--spacing-3xl) 0 var(--spacing-xl);
  margin-top: var(--spacing-4xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h3 {
  color: var(--color-white);
  font-size: var(--fs-lg);
  margin-bottom: var(--spacing-md);
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: var(--color-gray-300);
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-white);
  text-decoration: none;
}

.footer-bottom {
  border-top: 1px solid var(--color-gray-700);
  padding-top: var(--spacing-lg);
  text-align: center;
  color: var(--color-gray-400);
  font-size: var(--fs-sm);
}

/* === Forms === */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--color-gray-700);
}

.form-control {
  width: 100%;
  padding: var(--spacing-md);
  font-size: var(--fs-base);
  font-family: var(--font-primary);
  border: 2px solid var(--color-gray-300);
  border-radius: var(--border-radius);
  transition: border-color var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(0, 102, 161, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 150px;
}

/* === Utilities === */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.py-1 { padding-top: var(--spacing-sm); padding-bottom: var(--spacing-sm); }
.py-2 { padding-top: var(--spacing-md); padding-bottom: var(--spacing-md); }
.py-3 { padding-top: var(--spacing-lg); padding-bottom: var(--spacing-lg); }
.py-4 { padding-top: var(--spacing-xl); padding-bottom: var(--spacing-xl); }

/* === Breadcrumbs === */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  padding: var(--spacing-md) 0;
  margin-bottom: var(--spacing-lg);
  list-style: none;
  font-size: var(--fs-sm);
}

.breadcrumb-item + .breadcrumb-item::before {
  content: '/';
  padding: 0 var(--spacing-sm);
  color: var(--color-gray-400);
}

.breadcrumb-item.active {
  color: var(--color-gray-600);
}

/* === Responsive Design === */
@media (max-width: 992px) {
  :root {
    --fs-6xl: 2.5rem;
    --fs-5xl: 2rem;
    --fs-4xl: 1.75rem;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--color-white);
    flex-direction: column;
    align-items: flex-start;
    padding: var(--spacing-xl);
    gap: var(--spacing-md);
    transition: left var(--transition-base);
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }

  .cards-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }

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

@media (max-width: 768px) {
  :root {
    --container-padding: 1rem;
    --spacing-4xl: 3rem;
  }

  .hero {
    min-height: 400px;
  }

  .hero-title {
    font-size: var(--fs-4xl);
  }

  .hero-subtitle {
    font-size: var(--fs-lg);
  }

  .section {
    padding: var(--spacing-2xl) 0;
  }

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

@media (max-width: 480px) {
  :root {
    --fs-6xl: 2rem;
    --fs-5xl: 1.75rem;
    --fs-4xl: 1.5rem;
  }

  .btn {
    width: 100%;
  }

  .hero-cta {
    flex-direction: column;
    width: 100%;
  }
}

/* === Print Styles === */
@media print {
  .header, .footer, .nav, .btn, .hero-cta {
    display: none;
  }

  body {
    font-size: 12pt;
    line-height: 1.5;
    color: #000;
  }

  a {
    text-decoration: underline;
    color: #000;
  }

  .page-header {
    background: none;
    color: #000;
  }
}

/* === Accessibility === */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary-color);
  color: var(--color-white);
  padding: var(--spacing-sm) var(--spacing-md);
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* === Animation === */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* === Loading States === */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid var(--color-gray-300);
  border-radius: 50%;
  border-top-color: var(--primary-color);
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* === Feature Highlights === */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-2xl);
  margin: var(--spacing-3xl) 0;
}

.feature {
  text-align: center;
  padding: var(--spacing-xl);
}

.feature-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-lg);
  background-color: var(--primary-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  font-size: var(--fs-3xl);
}

.feature-title {
  font-size: var(--fs-xl);
  margin-bottom: var(--spacing-sm);
  color: var(--color-gray-800);
}

.feature-text {
  color: var(--color-gray-600);
  line-height: 1.8;
}

/* === Image Gallery === */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin: var(--spacing-2xl) 0;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
  aspect-ratio: 4/3;
  cursor: pointer;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-base);
  margin: 0;
}

.gallery-item:hover img {
  transform: scale(1.1);
}

.gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent);
  color: var(--color-white);
  padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
  transform: translateY(100%);
  transition: transform var(--transition-base);
}

.gallery-item:hover .gallery-caption {
  transform: translateY(0);
}

/* === Timeline === */
.timeline {
  position: relative;
  padding: var(--spacing-2xl) 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--primary-color);
  transform: translateX(-50%);
}

.timeline-item {
  margin-bottom: var(--spacing-3xl);
  position: relative;
}

.timeline-content {
  background-color: var(--color-white);
  padding: var(--spacing-lg);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-md);
  width: calc(50% - 40px);
}

.timeline-item:nth-child(odd) .timeline-content {
  margin-left: 0;
  margin-right: auto;
}

.timeline-item:nth-child(even) .timeline-content {
  margin-left: auto;
  margin-right: 0;
}

@media (max-width: 768px) {
  .timeline::before {
    left: 20px;
  }

  .timeline-content {
    width: calc(100% - 60px);
    margin-left: 60px !important;
  }
}