/* ===== VARIABLES CSS ===== */
:root {
  /* Couleurs principales - Charte graphique GénIA */
  --bleu: #2196f3;
  --bleu-marine: #0d3b66;
  --rouge: #e44366;
  --noir: #000000;
  --blanc: #ffffff;
  --gris-clair: #f5f5f5;
  --gris-moyen: #9e9e9e;

  /* Typographies */
  --font-titre: "Montserrat", sans-serif;
  --font-corps: "Open Sans", sans-serif;

  /* Espacements */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;

  /* Bordures */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  /* Transitions */
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-corps);
  font-size: 16px;
  line-height: 1.6;
  color: var(--noir);
  background-color: var(--blanc);
}

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

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

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

ul {
  list-style: none;
}

/* ===== UTILITAIRES ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-titre);
  font-weight: 600;
  font-size: 1rem;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--bleu);
  color: var(--blanc);
}

.btn-primary:hover {
  background-color: var(--bleu-marine);
}

.btn-secondary {
  background-color: var(--blanc);
  color: var(--bleu-marine);
}

.btn-secondary:hover {
  background-color: var(--gris-clair);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

/* ===== HEADER ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: var(--blanc);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  z-index: 1000;
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  font-family: var(--font-titre);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--bleu-marine);
}

.logo span {
  color: var(--bleu);
}

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

.nav-link {
  font-family: var(--font-titre);
  font-weight: 500;
  color: var(--bleu-marine);
  padding: var(--spacing-xs) 0;
  position: relative;
}

.nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--bleu);
  transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.btn-nav {
  background-color: var(--rouge);
  color: var(--blanc);
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-md);
}

.btn-nav::after {
  display: none;
}

.btn-nav:hover {
  background-color: #c93555;
}

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 5px;
}

.mobile-menu-btn span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--bleu-marine);
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== HERO ===== */
.hero {
  padding-top: 70px;
  background: linear-gradient(135deg, var(--bleu-marine) 0%, var(--bleu) 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
}

.hero-content {
  text-align: center;
  color: var(--blanc);
  padding: var(--spacing-2xl) 0;
}

.hero-badge {
  display: inline-block;
  background-color: var(--rouge);
  color: var(--blanc);
  padding: 0.5rem 1rem;
  border-radius: var(--radius-lg);
  font-family: var(--font-titre);
  font-weight: 600;
  font-size: 0.875rem;
  margin-bottom: var(--spacing-md);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero-title {
  font-size: 5rem;
  margin-bottom: var(--spacing-sm);
}

.hero-title span {
  color: var(--bleu);
  text-shadow: 2px 2px 0 var(--blanc);
}

.hero-subtitle {
  font-size: 1.5rem;
  font-weight: 300;
  margin-bottom: var(--spacing-xl);
  opacity: 0.9;
}

.hero-info {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.hero-info-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 1.125rem;
}

.hero-info-item svg {
  opacity: 0.8;
}

/* ===== SECTIONS ===== */
.section {
  padding: var(--spacing-2xl) 0;
}

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

.section-dark {
  background-color: var(--bleu-marine);
  color: var(--blanc);
}

.section-title {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: var(--spacing-xl);
  color: var(--bleu-marine);
}

.section-title-light {
  color: var(--blanc);
}

/* ===== ABOUT CARDS ===== */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
}

.about-card {
  background-color: var(--blanc);
  padding: var(--spacing-lg);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: var(--transition);
}

.about-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.about-icon {
  width: 64px;
  height: 64px;
  background-color: var(--bleu);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--spacing-md);
  color: var(--blanc);
}

.about-card h3 {
  font-size: 1.25rem;
  color: var(--bleu-marine);
  margin-bottom: var(--spacing-sm);
}

.about-card p {
  color: var(--gris-moyen);
}

/* ===== SPEAKERS SECTION ===== */
.speakers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
  max-width: 1100px;
  margin: 0 auto;
}

.speaker-card {
  background-color: var(--blanc);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: var(--transition);
}

.speaker-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.speaker-image {
  width: 100%;
  height: 300px;
  overflow: hidden;
  background-color: var(--gris-clair);
}

.speaker-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.speaker-content {
  padding: var(--spacing-lg);
}

.speaker-content h3 {
  font-size: 1.5rem;
  color: var(--bleu-marine);
  margin-bottom: var(--spacing-xs);
}

.speaker-role {
  color: var(--bleu);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: var(--spacing-md);
  line-height: 1.4;
}

.speaker-bio {
  color: var(--gris-moyen);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* ===== AUDIENCE ===== */
.audience-grid {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.audience-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  min-width: 150px;
}

.audience-icon {
  font-size: 2.5rem;
}

.audience-item span:last-child {
  font-family: var(--font-titre);
  font-weight: 600;
}

.audience-subtitle {
  text-align: center;
  font-size: 1.125rem;
  opacity: 0.9;
}

/* ===== CTA SECTION ===== */
.section-cta {
  background: linear-gradient(135deg, var(--bleu) 0%, var(--bleu-marine) 100%);
  text-align: center;
  color: var(--blanc);
}

.cta-title {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

.cta-text {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-lg);
  opacity: 0.9;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== FOOTER ===== */
.footer {
  background-color: var(--bleu-marine);
  color: var(--blanc);
  padding: var(--spacing-2xl) 0 var(--spacing-md);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}

.footer-title span {
  color: var(--bleu);
}

.footer-section h4 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-md);
  color: var(--bleu);
}

.footer-section p {
  opacity: 0.8;
  font-size: 0.9375rem;
  line-height: 1.7;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.footer-links a {
  opacity: 0.8;
  font-size: 0.9375rem;
}

.footer-links a:hover {
  opacity: 1;
  color: var(--bleu);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  font-size: 0.875rem;
  opacity: 0.7;
}
:root {
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --secondary: #0f172a;
  --light: #f8fafc;
  --gray: #64748b;
  --border: #e5e7eb;
  --radius: 10px;
}

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

body {
  font-family: "Open Sans", sans-serif;
  color: var(--secondary);
  background-color: var(--light);
  line-height: 1.6;
}

h1,
h2,
h3,
h4 {
  font-family: "Montserrat", sans-serif;
  font-weight: 700;
}

a {
  text-decoration: none;
  color: inherit;
}

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

/* =====================
   HEADER
===================== */
.header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
}

.logo span {
  color: var(--primary);
}

.nav-list {
  display: flex;
  list-style: none;
  gap: 25px;
}

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

.btn-nav {
  padding: 8px 16px;
  background: var(--primary);
  color: #fff;
  border-radius: 6px;
}

.btn-nav.active,
.btn-nav:hover {
  background: var(--primary-dark);
}

.mobile-menu-btn {
  display: none;
}

/* =====================
   PAGE HEADER
===================== */
.page-header {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 60px 0;
  text-align: center;
}

.page-header p {
  margin-top: 10px;
  opacity: 0.9;
}

/* =====================
   FORM SECTION
===================== */
.section {
  padding: 70px 0;
}

.form-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 40px;
}

/* ----- LEFT INFO ----- */
.form-info {
  background: #fff;
  padding: 30px;
  border-radius: var(--radius);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
}

.form-info h2 {
  margin-bottom: 20px;
}

.info-list {
  list-style: none;
}

.info-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 15px;
  color: var(--gray);
}

.info-list svg {
  color: var(--primary);
}

.places-counter {
  margin-top: 25px;
  padding: 15px;
  background: var(--light);
  border-radius: var(--radius);
  text-align: center;
}

.places-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary);
  display: block;
}

/* ----- FORM ----- */
.inscription-form {
  background: #fff;
  padding: 35px;
  border-radius: var(--radius);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.05);
}

.inscription-form h2 {
  margin-bottom: 25px;
}

/* Rows */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 600;
  font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  font-family: inherit;
}

.form-group textarea {
  resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.2);
}

/* Checkbox */
.checkbox-group {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.checkbox-group input {
  margin-top: 4px;
}

.checkbox-group a {
  color: var(--primary);
  text-decoration: underline;
}

/* Button */
.btn {
  border: none;
  cursor: pointer;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-lg {
  padding: 14px;
  font-size: 1rem;
  font-weight: 700;
}

.btn-block {
  width: 100%;
  border-radius: 8px;
  margin-top: 10px;
}

.btn-primary:hover {
  background: var(--primary-dark);
}

/* Note */
.form-note {
  margin-top: 15px;
  font-size: 0.8rem;
  color: var(--gray);
}

/* =====================
   FOOTER
===================== */
.footer {
  background: #020617;
  color: #cbd5f5;
  padding: 50px 0 20px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
}

.footer-title span {
  color: var(--primary);
}

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

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a:hover {
  color: #fff;
}

.footer-bottom {
  text-align: center;
  margin-top: 30px;
  font-size: 0.85rem;
  opacity: 0.7;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--blanc);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-md);
  }

  .nav.active {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .mobile-menu-btn {
    display: flex;
  }

  /* Added animation for mobile menu button */
  .mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
  }

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

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

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

  .hero-info {
    flex-direction: column;
    align-items: center;
  }

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

  /* Added responsive styles for speakers */
  .speakers-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-lg);
  }

  .speaker-image {
    height: 250px;
  }
}