/* ---------------------------------- */
/*          VARIABLES & RESET         */
/* ---------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --color-primary: #0f2e50; /* Bleu institutionnel foncé */
  --color-secondary: #6c7a89; /* Bleu gris atténué */
  --color-accent: #5c85ad; /* Bleu doux neutre */
  --color-background: #f4f4f7; /* Gris clair neutre */
  --color-text: #333333; /* Gris foncé neutre */
  --color-text-light: #fdfdfd;
  --color-border: #dfe2e6;
  --font-family-base: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  --spacing-base: 1rem;
  --border-radius: 8px;
  --transition-speed: 0.3s ease;
  --shadow-sm: 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 8px 15px rgba(0, 0, 0, 0.08);
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-speed);
}

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-family-base);
  color: var(--color-primary);
  line-height: 1.3;
  font-weight: 600;
  margin-bottom: calc(var(--spacing-base) * 1.5);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.8rem, 4vw, 2.8rem); font-weight: 600; }
h3 { font-size: clamp(1.4rem, 3vw, 2rem); }
p { margin-bottom: var(--spacing-base); }
.container {
  width: 100%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 calc(var(--spacing-base) * 2);
}

/* ---------------------------------- */
/*    HEADER & NAVIGATION             */
/* ---------------------------------- */
.site-header {
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  padding: var(--spacing-base) 0;
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 1000;
  border-bottom: 1px solid var(--color-border);
}

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

.site-logo {
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--color-primary);
  letter-spacing: -1px;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: calc(var(--spacing-base) * 2);
}

.main-nav a {
  font-weight: 500;
  color: var(--color-text);
  padding: 0.5rem 0;
  position: relative;
}

.main-nav a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width var(--transition-speed);
}
.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}
.main-nav a.active {
    font-weight: 600;
    color: var(--color-primary);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1001;
}
.mobile-menu-toggle .icon-bar {
  display: block;
  width: 25px;
  height: 2px;
  background-color: var(--color-primary);
  margin: 5px 0;
  transition: all 0.3s;
}

/* ---------------------------------- */
/*              HERO SECTION          */
/* ---------------------------------- */
.hero {
  background-color: var(--color-primary);
  color: var(--color-text-light);
  min-height: 60vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding: 100px 0;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('https://images.pexels.com/photos/18502586/pexels-photo-18502586.jpeg?auto=compress&cs=tinysrgb&dpr=2&h=650&w=940');
  background-size: cover;
  background-position: center;
  opacity: 0.15;
  filter: grayscale(80%) sepia(20%) brightness(0.9);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}
.hero h1 {
  color: var(--color-text-light);
  font-weight: 700;
}
.hero p {
  font-size: 1.2rem;
  color: rgba(255, 255, 255, 0.8);
  max-width: 90%;
}
.breadcrumb {
    margin-top: var(--spacing-base);
    font-size: 0.9rem;
}
.breadcrumb a {
    color: rgba(255, 255, 255, 0.7);
}
.breadcrumb a:hover {
    color: var(--color-text-light);
}
.breadcrumb span {
    color: var(--color-text-light);
    font-weight: 500;
}


/* ---------------------------------- */
/*        GENERAL PAGE & SECTION      */
/* ---------------------------------- */
main {
  padding-bottom: clamp(60px, 10vw, 120px);
}
.page-section {
  padding: clamp(60px, 10vw, 120px) 0;
}
.page-section.bg-white {
  background-color: #fff;
}
.section-title {
  text-align: center;
  margin-bottom: clamp(40px, 8vw, 80px);
  max-width: 800px;
  margin-left:auto;
  margin-right:auto;
}
.section-title h2 {
    margin-bottom: var(--spacing-base);
}
.section-title p {
    color: var(--color-secondary);
    font-size: 1.1rem;
}
.institutional-image {
  border-radius: var(--border-radius);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  position: relative;
}
.institutional-image img {
  width: 100%;
  height: auto;
  display: block;
  filter: grayscale(80%) sepia(20%) brightness(0.9);
}
.asymmetric-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 4rem;
    align-items: center;
}
@media (min-width: 768px) {
    .asymmetric-grid {
        grid-template-columns: repeat(12, 1fr);
    }
    .asymmetric-grid > *:nth-child(odd) .grid-content {
        grid-column: 1 / 7;
        grid-row: 1;
    }
    .asymmetric-grid > *:nth-child(odd) .grid-image {
        grid-column: 7 / 13;
        grid-row: 1;
    }
    .asymmetric-grid > *:nth-child(even) .grid-content {
        grid-column: 7 / 13;
        grid-row: 1;
    }
    .asymmetric-grid > *:nth-child(even) .grid-image {
        grid-column: 1 / 7;
        grid-row: 1;
    }
}
.grid-content {
    padding-right: 2.5rem;
}
.grid-image {
    position: relative;
}
.grid-image .institutional-image {
    box-shadow: 0 25px 50px -12px rgba(15, 46, 80, 0.25);
}
.text-link {
    font-weight: 600;
    color: var(--color-accent);
    display: inline-block;
    margin-top: 1rem;
    position: relative;
}
.text-link::after {
    content: '→';
    margin-left: 0.5rem;
    transition: transform var(--transition-speed);
}
.text-link:hover::after {
    transform: translateX(5px);
}
/* ---------------------------------- */
/*          FEATURE CARDS             */
/* ---------------------------------- */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}
.feature-card {
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--border-radius);
  padding: 2rem;
  transition: all var(--transition-speed);
  box-shadow: var(--shadow-sm);
}
.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}
.feature-card .icon {
  font-size: 2.5rem;
  color: var(--color-accent);
  margin-bottom: 1rem;
}
.feature-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}
.feature-card p {
  color: var(--color-secondary);
  font-size: 0.95rem;
  margin-bottom: 0;
}

/* ---------------------------------- */
/*      LONG FORM ARTICLE STYLE       */
/* ---------------------------------- */
.article-content {
    max-width: 800px;
    margin: 0 auto;
}
.article-content h2, .article-content h3 {
    margin-top: 3rem;
}
.article-content p, .article-content ul, .article-content ol {
    font-size: 1.1rem;
    line-height: 1.8;
}
.article-content ul, .article-content ol {
    padding-left: 1.5rem;
    margin-bottom: 1.5rem;
}
.article-content blockquote {
    border-left: 4px solid var(--color-accent);
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    color: var(--color-secondary);
    font-size: 1.2rem;
}
.article-content .related-articles {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}

/* ---------------------------------- */
/*          STRUCTURAL SCHEMA         */
/* ---------------------------------- */
.structural-schema {
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}
.schema-level {
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px dashed var(--color-border);
    position: relative;
}
.schema-level:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}
.schema-level h4 {
    color: var(--color-accent);
    font-size: 1.2rem;
    border-bottom: 2px solid var(--color-accent);
    padding-bottom: 0.5rem;
    display: inline-block;
    margin-bottom: 1.5rem;
}
.schema-components {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}
.schema-component {
    background: var(--color-background);
    padding: 1rem 1.5rem;
    border-radius: 6px;
    border: 1px solid var(--color-border);
    font-weight: 500;
}

/* ---------------------------------- */
/*          CONTACT PAGE              */
/* ---------------------------------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}
@media (min-width: 992px) {
    .contact-layout {
        grid-template-columns: 1fr 1fr;
    }
}
.contact-info-block {
    margin-bottom: 2rem;
}
.contact-info-block h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}
.contact-info-block p, .contact-info-block a {
    color: var(--color-secondary);
    line-height:
    1.6;
}
.contact-form {
    background: white;
    padding: 2.5rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-sm);
}
.form-group {
    margin-bottom: 1.5rem;
}
.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}
.form-group input, .form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border-radius: 6px;
    border: 1px solid var(--color-border);
    font-family: var(--font-family-base);
    font-size: 1rem;
    transition: border-color var(--transition-speed), box-shadow var(--transition-speed);
}
.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(92, 133, 173, 0.2);
}
.form-group textarea {
    min-height: 150px;
    resize: vertical;
}
.form-disclaimer {
    font-size: 0.9rem;
    color: var(--color-secondary);
    margin-bottom: 1.5rem;
}
.form-submit-btn {
    background-color: var(--color-primary);
    color: var(--color-text-light);
    border: none;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color var(--transition-speed), transform var(--transition-speed);
}
.form-submit-btn:hover {
    background-color: var(--color-accent);
    transform: translateY(-2px);
}
.map-container {
    width: 100%;
    height: 450px;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin: 2rem 0;
}
.map-container iframe { width: 100%; height: 100%; border:0; }

/* ---------------------------------- */
/*          LEGAL/ABOUT PAGE          */
/* ---------------------------------- */
.prose-section {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    padding: 3rem;
    border-radius: var(--border-radius);
    border: 1px solid var(--color-border);
}
.prose-section h2, .prose-section h3 {
    margin-top: 1.5rem;
}
.prose-section h2:first-child, .prose-section h3:first-child {
    margin-top: 0;
}

/* ---------------------------------- */
/*          THANK YOU PAGE          */
/* ---------------------------------- */
.thank-you-section {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 20px;
}

.thank-you-icon {
  width: 80px;
  height: 80px;
  background: var(--color-accent);
  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(--color-secondary);
  max-width: 600px;
  margin-bottom: 30px;
}

.btn-home {
    display: inline-block;
    background-color: var(--color-primary);
    color: var(--color-text-light);
    padding: 1rem 2rem;
    border-radius: 6px;
    font-weight: 600;
    transition: background-color var(--transition-speed);
}

.btn-home:hover {
    background-color: var(--color-accent);
    color: var(--color-text-light);
}

/* ---------------------------------- */
/*              FOOTER                */
/* ---------------------------------- */
.site-footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.7);
  padding: clamp(40px, 8vw, 80px) 0;
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  padding-bottom: 3rem;
}
.footer-col h4 {
  color: var(--color-text-light);
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  font-weight: 600;
}
.footer-col .site-logo {
    color: var(--color-text-light);
    font-size: 1.8rem;
    display: block;
    margin-bottom: 1rem;
}
.footer-col ul {
  list-style: none;
}
.footer-col ul li {
  margin-bottom: 0.8rem;
}
.footer-col ul a, .footer-col p, .footer-col a {
  color: rgba(255, 255, 255, 0.7);
}
.footer-col a:hover {
  color: var(--color-text-light);
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

/* ---------------------------------- */
/*          DISCLAIMER                */
/* ---------------------------------- */
.disclaimer-section {
  background-color: rgba(0,0,0,0.1);
  color: inherit;
  padding: 20px 30px;
  margin-top: 3rem; S
  border-radius: var(--border-radius);
  text-align: left;
  font-size: 14px;
  line-height: 1.6;
  border-left: 4px solid var(--color-accent);
}
.disclaimer-section strong {
  display: block;
  margin-bottom: 8px;
  color: var(--color-text-light);
}


/* ---------------------------------- */
/*          COOKIE BANNER             */
/* ---------------------------------- */
#cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: rgba(15, 46, 80, 0.95);
  color: var(--color-text-light);
  padding: 1.5rem;
  z-index: 9999;
  display: none;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  box-shadow: 0 -5px 15px rgba(0,0,0,0.2);
  backdrop-filter: blur(5px);
}
.cookie-text {
  flex-grow: 1;
}
.cookie-text p {
    margin: 0;
    font-size: 0.9rem;
}
.cookie-buttons {
  display: flex;
  gap: 1rem;
  flex-shrink: 0;
}
.cookie-btn {
  padding: 0.6rem 1.2rem;
  border-radius: 6px;
  border: none;
  cursor: pointer;
  font-weight: 600;
  transition: all var(--transition-speed);
}
.cookie-btn.accept {
  background-color: var(--color-accent);
  color: var(--color-text-light);
}
.cookie-btn.accept:hover {
  background-color: color-mix(in srgb, var(--color-accent), #fff 20%);
}
.cookie-btn.decline {
  background-color: transparent;
  color: var(--color-text-light);
  border: 1px solid var(--color-secondary);
}
.cookie-btn.decline:hover {
  background-color: var(--color-secondary);
}


/* ---------------------------------- */
/*        MOBILE RESPONSIVENESS       */
/* ---------------------------------- */
@media (max-width: 991px) {
  .mobile-menu-toggle {
    display: block;
  }
  .main-nav {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100%;
    background-color: white;
    transform: translateX(100%);
    transition: transform var(--transition-speed);
    padding-top: 80px;
    box-shadow: -5px 0 15px rgba(0,0,0,0.1);
  }
  .main-nav.active {
    transform: translateX(0);
  }
  .main-nav ul {
    flex-direction: column;
    gap: 0;
    align-items: flex-start;
  }
  .main-nav li {
      width: 100%;
  }
  .main-nav a {
    display: block;
    padding: 1rem 1.5rem;
    width: 100%;
    border-bottom: 1px solid var(--color-border);
  }
  .main-nav a::after { display: none; }
  .main-nav a.active {
      background-color: var(--color-background);
  }
  .mobile-menu-toggle.active .icon-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .mobile-menu-toggle.active .icon-bar:nth-child(2) {
    opacity: 0;
  }
  .mobile-menu-toggle.active .icon-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  #cookie-banner {
      flex-direction: column;
      text-align: center;
  }
}