@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;600;700&display=swap');

:root {
  --primary-color: #214264;
  --secondary-color: #6B8EAE;
  --accent-color: #8DBADE;
  --bg-light: #F5F5F5;
  --bg-white: #FFFFFF;
  --text-dark: #333333;
  --text-light: #FAFAFA;
  --border-color: #DDE2E7;
  --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 15px rgba(0, 0, 0, 0.07);
  --font-family-base: 'Open Sans', sans-serif;
  --container-width: 1200px;
  --section-padding: clamp(4rem, 8vw, 6rem);
  --border-radius: 8px;
  --transition: all 0.3s ease-in-out;
}

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

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

body {
  font-family: var(--font-family-base);
  color: var(--text-dark);
  background-color: var(--bg-white);
  line-height: 1.7;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: var(--primary-color);
  line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
p { margin-bottom: 1rem; }
a { color: var(--secondary-color); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-color); }
ul { list-style: none; }
img { max-width: 100%; height: auto; display: block; }

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

.section {
  padding-top: var(--section-padding);
  padding-bottom: var(--section-padding);
}

.section-bg { background-color: var(--bg-light); }
.text-center { text-align: center; }

.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  border-radius: var(--border-radius);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
}

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

.btn-primary:hover {
  background-color: var(--secondary-color);
  border-color: var(--secondary-color);
  transform: translateY(-2px);
}

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

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

/* Header & Navigation */
.main-header {
  background-color: var(--bg-white);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  box-shadow: var(--shadow-sm);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-color);
}

.main-nav .nav-links {
  display: flex;
  gap: 1.8rem;
}

.main-nav .nav-links a {
  font-weight: 600;
  color: var(--primary-color);
  padding: 0.5rem 0;
  position: relative;
  font-size: 0.95rem;
}

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

.main-nav .nav-links a:hover::after,
.main-nav .nav-links .active a::after {
  width: 100%;
}
.main-nav .nav-links .active a {
  color: var(--secondary-color);
}

.menu-toggle { display: none; }
.mobile-menu-icon { font-size: 1.8rem; cursor: pointer; color: var(--primary-color); }

/* Hero Section */
.hero {
  position: relative;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--text-light);
  background-size: cover;
  background-position: center;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(33, 66, 100, 0.8), rgba(33, 66, 100, 0.6));
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
}

.hero h1 {
  color: var(--text-light);
  margin-bottom: 1rem;
}

.hero p {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.9);
}

.styled-image {
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-top: 2rem;
}

.styled-image img {
  filter: grayscale(1) contrast(1.1) brightness(0.9);
}

/* Card Styles */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background-color: var(--bg-white);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.card-icon {
  font-size: 2.5rem;
  color: var(--primary-color);
  padding: 1.5rem;
  text-align: center;
  background-color: #eaf1f8;
}

.card-body {
  padding: 1.5rem 2rem;
  flex-grow: 1;
}

.card-body h3 {
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.card-footer {
  padding: 1rem 2rem;
  border-top: 1px solid var(--border-color);
}

.card-footer a {
  font-weight: 600;
}

/* Article Styles */
.article-content {
  max-width: 800px;
  margin: 0 auto;
}
.article-content h2,
.article-content h3,
.article-content h4 {
  margin-top: 2rem;
  margin-bottom: 1rem;
}
.article-content ul, .article-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}
.article-content li { margin-bottom: 0.5rem; }
.article-content blockquote {
    border-left: 4px solid var(--accent-color);
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: var(--secondary-color);
}
.article-header {
  text-align: center;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 2rem;
}
.article-header p {
    color: var(--secondary-color);
}

/* Diagram */
.structural-diagram {
    border: 1px solid var(--border-color);
    padding: 2rem;
    border-radius: var(--border-radius);
    background: var(--bg-white);
    text-align: center;
}
.diagram-level {
    margin-bottom: 1.5rem;
}
.diagram-box {
    background: #eaf1f8;
    border: 1px solid var(--accent-color);
    padding: 1rem;
    border-radius: 4px;
    color: var(--primary-color);
    font-weight: 600;
    margin: 0.5rem auto;
    max-width: 80%;
}
.diagram-connector {
    width: 2px;
    height: 30px;
    background: var(--secondary-color);
    margin: 0 auto;
}


/* Contact Page */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 3rem;
  align-items: start;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-info-item svg {
  width: 24px;
  height: 24px;
  color: var(--primary-color);
  margin-top: 4px;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  transition: var(--transition);
  font-family: var(--font-family-base);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(33, 66, 100, 0.1);
}

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

.form-disclaimer {
    font-size: 0.8rem;
    color: var(--secondary-color);
    margin-top: 1rem;
    font-style: italic;
}

/* Legal Page */
.legal-content {
    max-width: 800px;
    margin: auto;
}
.legal-content h3 {
    margin-top: 2rem;
    margin-bottom: 1rem;
}

/* Thank You Page */
.thank-you-section {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--section-padding) 1.5rem;
}
.thank-you-icon {
  width: 80px;
  height: 80px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 30px;
}
.thank-you-icon svg {
  width: 40px;
  height: 40px;
  color: white;
}
.thank-you-section h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 20px;
}
.thank-you-section p {
  font-size: 1.2rem;
  color: var(--secondary-color);
  max-width: 600px;
  margin-bottom: 30px;
}

/* Footer */
.main-footer {
  background-color: var(--primary-color);
  color: var(--text-light);
  padding-top: 4rem;
}

.footer-top {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-widget h4 {
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

.footer-widget p, .footer-widget a {
  color: rgba(255, 255, 255, 0.8);
}

.footer-widget a:hover {
  color: var(--text-light);
  text-decoration: underline;
}

.footer-widget ul li {
  margin-bottom: 0.8rem;
}

.disclaimer-section {
  background-color: rgba(0, 0, 0, 0.1);
  color: var(--text-light);
  padding: 1.5rem 2rem;
  border-radius: var(--border-radius);
  font-size: 0.85rem;
  line-height: 1.6;
  margin-bottom: 3rem;
  border: 1px solid var(--secondary-color);
}
.disclaimer-section strong {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--accent-color);
}

.footer-bottom {
  padding: 1.5rem 0;
  text-align: center;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.7);
}

/* Cookie Banner */
#cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(33, 66, 100, 0.95);
  backdrop-filter: blur(5px);
  color: var(--text-light);
  padding: 1.5rem;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

#cookie-banner-text {
  max-width: 600px;
  font-size: 0.9rem;
}

#cookie-banner-buttons {
  display: flex;
  gap: 1rem;
}

#cookie-banner .btn {
  padding: 0.6rem 1.2rem;
}

#cookie-banner .btn-accept {
    background-color: var(--accent-color);
    color: var(--primary-color);
    border-color: var(--accent-color);
}
#cookie-banner .btn-accept:hover {
    background-color: var(--text-light);
}

#cookie-banner .btn-decline {
    background-color: transparent;
    border-color: var(--secondary-color);
    color: var(--text-light);
}
#cookie-banner .btn-decline:hover {
    background-color: var(--secondary-color);
}


/* Responsive */
@media (max-width: 992px) {
  .main-nav .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--bg-white);
    flex-direction: column;
    padding: 1rem 0;
    gap: 0;
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
  }

  .main-nav .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav .nav-links li {
    width: 100%;
  }

  .main-nav .nav-links a {
    display: block;
    padding: 1rem 1.5rem;
    width: 100%;
  }
   .main-nav .nav-links a::after { display: none; }

  .menu-toggle { display: block; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .hero { min-height: 70vh; }
    h1 { font-size: 2.2rem; }
    h2 { font-size: 1.8rem; }
    .hero p { font-size: 1rem; }
    #cookie-banner { flex-direction: column; text-align: center; }
}