/* Novatiel - Style Guide */
/* Couleurs du site officiel: Bleu #296b96, Rouge #ff0101, Dark #212121 */

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

:root {
  --primary: #296b96;
  --primary-dark: #1e5577;
  --accent: #ff0101;
  --accent-light: #ff4444;
  --dark: #212121;
  --dark-light: #383B3D;
  --gold: #EAB10B;
  --white: #ffffff;
  --light: #f5f7fa;
  --text: #383B3D;
  --text-muted: #6b7280;
  --border: #e5e7eb;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--white);
  color: var(--text);
  line-height: 1.6;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Navbar */
.navbar {
  background: var(--dark);
  padding: 15px 0;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
}

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

.logo {
  font-size: 1.6rem;
  font-weight: 700;
  text-decoration: none;
}

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

.logo-tiel {
  color: var(--accent);
}

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

.nav-links a {
  color: var(--white);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--gold);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 4px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  font-size: 0.95rem;
}

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

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

.btn-outline {
  background: transparent;
  border: 2px solid var(--white);
  color: var(--white);
}

.btn-outline:hover {
  background: var(--white);
  color: var(--dark);
}

.btn-lg {
  padding: 14px 32px;
  font-size: 1rem;
}

/* Hero */
.hero {
  padding: 180px 0 120px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--dark) 100%);
  color: var(--white);
  text-align: center;
}

.hero-content {
  max-width: 800px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 15px;
  line-height: 1.2;
}

.hero-tagline {
  font-size: 1.5rem;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 20px;
}

.hero-description {
  font-size: 1.15rem;
  opacity: 0.9;
  margin-bottom: 35px;
}

.hero-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
}

/* Stats */
.stats-section {
  background: var(--dark);
  padding: 50px 0;
  margin-top: -30px;
}

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

.stat-item {
  padding: 20px;
}

.stat-number {
  display: block;
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--gold);
}

.stat-label {
  color: var(--white);
  opacity: 0.8;
  font-size: 0.9rem;
  margin-top: 5px;
}

/* Sections */
section {
  padding: 80px 0;
}

section h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 10px;
  text-align: center;
  color: var(--dark);
}

.section-subtitle {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 50px;
  font-size: 1.1rem;
}

/* Solutions */
.solutions {
  background: var(--light);
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.solution-card {
  background: var(--white);
  border-radius: 12px;
  padding: 35px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s, box-shadow 0.3s;
  border-top: 4px solid var(--primary);
}

.solution-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
}

.solution-lab {
  border-top-color: var(--accent);
}

.solution-learn {
  border-top-color: var(--primary);
}

.solution-train {
  border-top-color: var(--gold);
}

.solution-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
}

.solution-card h3 {
  font-size: 1.4rem;
  color: var(--dark);
  margin-bottom: 5px;
}

.solution-subtitle {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 15px;
}

.solution-card p {
  color: var(--text-muted);
  margin-bottom: 20px;
  font-size: 0.95rem;
}

.solution-card ul {
  list-style: none;
}

.solution-card li {
  padding: 8px 0;
  color: var(--text);
  font-size: 0.9rem;
  border-bottom: 1px solid var(--border);
}

.solution-card li:last-child {
  border-bottom: none;
}

.solution-card li::before {
  content: "→ ";
  color: var(--primary);
  font-weight: bold;
}

/* Experts */
.experts-filters {
  display: flex;
  gap: 15px;
  justify-content: center;
  margin-bottom: 40px;
}

.search-input,
.filter-select {
  padding: 12px 20px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
}

.search-input {
  width: 300px;
}

.filter-select {
  min-width: 180px;
}

.experts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 25px;
}

.expert-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 25px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.expert-card:hover {
  border-color: var(--primary);
  box-shadow: 0 5px 20px rgba(41, 107, 150, 0.1);
}

.expert-header {
  display: flex;
  align-items: center;
  gap: 15px;
  margin-bottom: 15px;
}

.expert-avatar {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--white);
}

.expert-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--dark);
}

.expert-location {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.expert-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 15px;
}

.expert-tag {
  background: rgba(41, 107, 150, 0.1);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 500;
}

/* Formations */
.formations {
  background: var(--light);
}

.formations-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 800px;
  margin: 0 auto;
}

.formation-card {
  background: var(--white);
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  border-left: 4px solid var(--primary);
  transition: border-color 0.2s;
}

.formation-card:hover {
  border-left-color: var(--accent);
}

.formation-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 8px;
}

.formation-meta {
  display: flex;
  gap: 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 10px;
}

.formation-description {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Join Section */
.join-section {
  background: var(--dark);
  color: var(--white);
}

.join-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.join-info h2 {
  text-align: left;
  color: var(--white);
  margin-bottom: 20px;
}

.join-info p {
  opacity: 0.9;
  margin-bottom: 15px;
  line-height: 1.7;
}

.join-features {
  margin-top: 30px;
}

.feature {
  display: flex;
  gap: 15px;
  margin-bottom: 20px;
}

.feature-icon {
  font-size: 1.8rem;
}

.feature strong {
  display: block;
  color: var(--gold);
  margin-bottom: 3px;
}

.feature p {
  margin: 0;
  opacity: 0.8;
  font-size: 0.9rem;
}

.trainer-form {
  background: var(--white);
  padding: 40px;
  border-radius: 12px;
  color: var(--text);
}

.trainer-form h3 {
  color: var(--dark);
  margin-bottom: 25px;
  font-size: 1.3rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

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

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

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
}

.form-group textarea {
  resize: vertical;
}

.trainer-form .btn {
  width: 100%;
  margin-top: 10px;
}

/* Contact */
.contact {
  text-align: center;
  background: var(--light);
}

.contact p {
  color: var(--text-muted);
  margin-bottom: 25px;
}

.contact-buttons {
  display: flex;
  gap: 15px;
  justify-content: center;
}

.contact .btn-outline {
  border-color: var(--dark);
  color: var(--dark);
}

.contact .btn-outline:hover {
  background: var(--dark);
  color: var(--white);
}

/* Footer */
.footer {
  background: var(--dark);
  color: var(--white);
  padding: 60px 0 30px;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand p {
  opacity: 0.7;
  font-size: 0.9rem;
  margin-top: 10px;
}

.footer-links {
  display: flex;
  gap: 60px;
}

.footer-col h4 {
  color: var(--gold);
  margin-bottom: 15px;
  font-size: 0.95rem;
}

.footer-col a {
  display: block;
  color: var(--white);
  text-decoration: none;
  opacity: 0.7;
  padding: 5px 0;
  font-size: 0.9rem;
  transition: opacity 0.2s;
}

.footer-col a:hover {
  opacity: 1;
}

.footer-copy {
  text-align: center;
  opacity: 0.5;
  font-size: 0.85rem;
}

/* Loading */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--text-muted);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 15px;
  opacity: 0.5;
}

/* Responsive */
@media (max-width: 992px) {
  .solutions-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero h1 {
    font-size: 2rem;
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .join-wrapper {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .experts-filters {
    flex-direction: column;
    align-items: stretch;
  }

  .search-input {
    width: 100%;
  }

  .footer-content {
    flex-direction: column;
    gap: 30px;
  }

  .footer-links {
    flex-direction: column;
    gap: 30px;
  }

  .contact-buttons {
    flex-direction: column;
    align-items: center;
  }
}