@import url('https://fonts.googleapis.com/css2?family=Lato:wght@300;400;700&display=swap');

:root {
  --primary-color: #0A1F3B;
  --secondary-color: #4A6B8D;
  --accent-color: #8FAEC2;
  --bg-color: #F5F5F5;
  --text-color: #333333;
  --text-light: #6c757d;
  --text-on-dark: #FFFFFF;
  --border-color: #e0e0e0;

  --font-family: 'Lato', sans-serif;
  --spacing-xs: 4px;
  --spacing-s: 8px;
  --spacing-m: 16px;
  --spacing-l: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 64px;
  --spacing-xxxl: 120px;

  --border-radius: 8px;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
  --transition: all 0.3s ease-in-out;
}

/* --- RESET & BASE --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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: var(--spacing-m); }
a { color: var(--secondary-color); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-color); text-decoration: underline; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

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

@media(max-width: 768px) {
  .section {
    padding: var(--spacing-xxl) 0;
  }
}

/* --- HEADER & NAVIGATION --- */
.main-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
  transition: var(--transition);
}

.main-header.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.main-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
  padding: 0 var(--spacing-xl);
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-color);
  text-decoration: none;
}
.logo:hover {
  color: var(--secondary-color);
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-l);
}

.nav-links a {
  font-weight: 400;
  color: var(--text-color);
  padding: var(--spacing-s) 0;
  position: relative;
  text-decoration: none;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--secondary-color);
  transition: var(--transition);
}
.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}
.nav-links a.active {
  font-weight: 700;
  color: var(--primary-color);
}

.dropdown {
  position: relative;
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background-color: white;
  min-width: 250px;
  box-shadow: var(--shadow);
  border-radius: var(--border-radius);
  padding: var(--spacing-s) 0;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.dropdown:hover .dropdown-menu {
  display: block;
  opacity: 1;
  transform: translateY(0);
}
.dropdown-menu a {
  display: block;
  padding: var(--spacing-m);
  color: var(--text-color);
}
.dropdown-menu a:hover {
  background-color: var(--bg-color);
}
.dropdown-menu a::after {
  display: none;
}

.burger-menu {
  display: none;
  cursor: pointer;
  background: none;
  border: none;
  z-index: 1001;
}
.burger-menu .bar {
  display: block;
  width: 25px;
  height: 3px;
  margin: 5px auto;
  background-color: var(--primary-color);
  transition: all 0.3s ease-in-out;
}

/* --- HERO SECTION --- */
.hero {
  position: relative;
  height: 60vh;
  min-height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--text-on-dark);
  background-size: cover;
  background-position: center;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: var(--primary-color);
  opacity: 0.8;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding: 0 var(--spacing-l);
}
.hero h1 {
  color: var(--text-on-dark);
  font-size: clamp(2rem, 5vw, 3.5rem);
  text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

/* --- BREADCRUMBS --- */
.breadcrumbs {
  padding: var(--spacing-m) 0;
  background-color: #e9ecef;
}
.breadcrumbs-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  font-size: 0.9rem;
}
.breadcrumbs-item {
  display: flex;
  align-items: center;
}
.breadcrumbs-item::after {
  content: '/';
  margin: 0 var(--spacing-s);
  color: var(--text-light);
}
.breadcrumbs-item:last-child::after {
  display: none;
}
.breadcrumbs-item a {
  color: var(--secondary-color);
}
.breadcrumbs-item span {
  color: var(--text-color);
  font-weight: 700;
}


/* --- HOME PAGE BLOCKS --- */
.analysis-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}
.analysis-card {
  background: white;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-l);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.analysis-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow);
}
.analysis-card h3 {
  margin-bottom: var(--spacing-m);
}
.analysis-card p {
  flex-grow: 1;
  color: var(--text-light);
}
.analysis-card .card-link {
  display: inline-block;
  margin-top: auto;
  font-weight: 700;
  color: var(--secondary-color);
  text-decoration: none;
}

/* --- ARTICLE PAGE --- */
.article-content {
  background: white;
  padding: var(--spacing-xxl);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow);
  max-width: 800px;
  margin: -80px auto 0 auto;
  position: relative;
  z-index: 10;
}
.article-content h3 {
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-m);
}
.article-content p {
  line-height: 1.8;
  margin-bottom: var(--spacing-l);
}
.structure-diagram {
    border: 2px dashed var(--accent-color);
    padding: var(--spacing-xxl);
    margin: var(--spacing-xl) 0;
    text-align: center;
    border-radius: var(--border-radius);
    background-color: #fcfcfc;
}
.structure-diagram p {
    font-style: italic;
    color: var(--text-light);
}

/* --- CONTACT PAGE --- */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-xxl);
    align-items: start;
}
.contact-info-block {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}
.contact-info-block h3 {
    margin-bottom: var(--spacing-l);
}
.contact-info-item {
    display: flex;
    align-items: start;
    gap: var(--spacing-m);
    margin-bottom: var(--spacing-l);
}
.contact-info-item svg {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    color: var(--secondary-color);
    margin-top: 4px;
}
.contact-info-text strong {
  display: block;
  color: var(--primary-color);
}
.contact-info-text a {
  word-break: break-all;
}

.contact-form {
    background: white;
    padding: var(--spacing-xl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}
.form-group {
    margin-bottom: var(--spacing-l);
}
.form-group label {
    display: block;
    margin-bottom: var(--spacing-s);
    font-weight: 700;
}
.form-control {
    width: 100%;
    padding: var(--spacing-m);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-family: var(--font-family);
    transition: var(--transition);
}
.form-control:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(74, 107, 141, 0.2);
}
.btn-submit {
    display: inline-block;
    background-color: var(--secondary-color);
    color: white;
    padding: var(--spacing-m) var(--spacing-xl);
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}
.btn-submit:hover {
    background-color: var(--primary-color);
    text-decoration: none;
}
.form-avertissement {
    margin-top: var(--spacing-l);
    font-size: 0.9rem;
    color: var(--text-light);
    border-left: 3px solid var(--accent-color);
    padding-left: var(--spacing-m);
}
.map-container {
  width: 100%;
  height: 450px;
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  margin-top: var(--spacing-xxl);
}
.map-container iframe { width: 100%; height: 100%; border: none; }

/* --- LEGAL PAGE --- */
.legal-content {
    background: white;
    padding: var(--spacing-xxl);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}
.legal-content h2, .legal-content h3 { margin-bottom: var(--spacing-m); }
.legal-content h3 { margin-top: var(--spacing-xl); }

/* --- FOOTER --- */
.main-footer {
  background-color: var(--primary-color);
  color: var(--text-on-dark);
  padding: var(--spacing-xxl) 0;
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}
.footer-col h4 {
  color: var(--text-on-dark);
  margin-bottom: var(--spacing-l);
  font-weight: 700;
}
.footer-col a, .footer-col p {
  color: var(--accent-color);
  margin-bottom: var(--spacing-s);
}
.footer-col a:hover {
  color: var(--text-on-dark);
}
.footer-col address {
  font-style: normal;
}
.footer-bottom {
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--secondary-color);
  text-align: center;
  color: var(--accent-color);
}
.footer-bottom a {
    color: var(--accent-color);
    font-weight: 700;
}
.footer-bottom a:hover {
    color: var(--text-on-dark);
}

/* --- SCROLL TO TOP --- */
.scroll-to-top {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: var(--secondary-color);
  color: white;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s, background-color 0.3s;
  z-index: 999;
}
.scroll-to-top:hover {
  background-color: var(--primary-color);
}
.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
}
.scroll-to-top svg {
  width: 24px;
  height: 24px;
}

/* --- COOKIE BANNER --- */
#cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--primary-color);
  color: var(--text-on-dark);
  padding: var(--spacing-l);
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-l);
  z-index: 9999;
  box-shadow: 0 -5px 15px rgba(0,0,0,0.2);
}
#cookie-banner p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--accent-color);
}
#cookie-banner p a {
    color: var(--text-on-dark);
    text-decoration: underline;
}
.cookie-buttons {
  display: flex;
  gap: var(--spacing-m);
  flex-shrink: 0;
}
.cookie-btn {
  padding: var(--spacing-s) var(--spacing-l);
  border-radius: var(--border-radius);
  border: none;
  cursor: pointer;
  font-weight: 700;
  transition: var(--transition);
}
.cookie-accept {
  background-color: var(--accent-color);
  color: var(--primary-color);
}
.cookie-accept:hover {
  background-color: white;
}
.cookie-decline {
  background-color: transparent;
  border: 1px solid var(--secondary-color);
  color: var(--accent-color);
}
.cookie-decline:hover {
  background-color: var(--secondary-color);
  color: white;
}

/* --- THANK YOU & 404 PAGE --- */
.status-page-section {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-xxxl) var(--spacing-l);
}
.status-icon {
  width: 80px;
  height: 80px;
  background: var(--secondary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-xl);
}
.status-icon svg {
  width: 40px;
  height: 40px;
  color: white;
}
.status-page-section h1 { font-size: clamp(2rem, 5vw, 3.5rem); margin-bottom: var(--spacing-m); }
.status-page-section p { font-size: 1.2rem; color: var(--text-light); max-width: 600px; margin-bottom: var(--spacing-xl); }
.btn-home {
    display: inline-block;
    background-color: var(--secondary-color);
    color: white;
    padding: var(--spacing-m) var(--spacing-xl);
    border: none;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
}
.btn-home:hover {
    background-color: var(--primary-color);
}


/* --- RESPONSIVE DESIGN --- */
@media (max-width: 992px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    max-width: 320px;
    height: 100vh;
    background-color: white;
    flex-direction: column;
    align-items: flex-start;
    padding: 100px var(--spacing-xl) var(--spacing-xl);
    gap: var(--spacing-m);
    box-shadow: -5px 0 15px rgba(0,0,0,0.1);
    transition: right 0.4s ease-in-out;
  }
  .nav-links.open {
    right: 0;
  }
  .burger-menu {
    display: block;
  }
  .burger-menu.toggle .bar:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 6px);
  }
  .burger-menu.toggle .bar:nth-child(2) {
    opacity: 0;
  }
  .burger-menu.toggle .bar:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -6px);
  }
  .dropdown {
    width: 100%;
  }
  .dropdown .dropdown-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
  }
  .dropdown .dropdown-toggle::after {
    content: '▼';
    font-size: 0.8rem;
    color: var(--text-light);
  }
  .dropdown-menu {
    display: none;
    position: static;
    background: transparent;
    box-shadow: none;
    border-radius: 0;
    padding: 0 0 0 var(--spacing-m);
    opacity: 1;
    transform: none;
    width: 100%;
  }
  .dropdown:hover .dropdown-menu {
      display: none;
  }
  .dropdown.open .dropdown-menu {
      display: block;
  }
  .dropdown-menu a {
      padding: var(--spacing-s) var(--spacing-m);
      font-size: 0.95rem;
  }

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

@media (max-width: 768px) {
    .article-content {
        padding: var(--spacing-xl);
    }
}

@media (max-width: 480px) {
    #cookie-banner {
        flex-direction: column;
        text-align: center;
    }
    .footer-grid {
        text-align: center;
    }
}

/* --- ANIMATIONS --- */
.fade-in-section {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}