/*
 * Feuille de styles principale pour le site de Théo Mathieu.
 * Utilise un thème sombre avec accents orange #cb5a0c et une typographie Montserrat.
 * Les classes et sélecteurs sont organisés par sections pour faciliter la maintenance.
 */

/* Variables globales */
:root {
  --color-bg: #0f0f0f;
  --color-surface: #161616;
  --color-card: #1c1c1c;
  --color-primary: #cb5a0c;
  --color-secondary: #ffffff;
  --color-text: #e5e5e5;
  --color-muted: #9a9a9a;
  --transition-fast: 0.3s ease;
}

/* Reset de base */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Montserrat', sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  scroll-behavior: smooth;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* Conteneur principal pour centrer le contenu */
.container {
  width: 90%;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

/* Navigation */
#header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: rgba(15, 15, 15, 0.95);
  backdrop-filter: blur(5px);
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

/* Bouton de bascule du menu pour mobile */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-secondary);
  font-size: 1.8rem;
  cursor: pointer;
}
.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-secondary);
}
.nav-menu {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}
.nav-menu a {
  color: var(--color-text);
  padding: 0.5rem 0.75rem;
  border-radius: 4px;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}
.nav-menu a:hover {
  background-color: var(--color-primary);
  color: #fff;
}

/* Lien de navigation actif */
.nav-menu a.active {
  background-color: var(--color-primary);
  color: #fff;
}

/* Styles de focus visibles pour l’accessibilité */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  box-shadow: none;
}

/* Sections générales */
section {
  padding: 5rem 0;
  /* Marge pour éviter que le titre soit masqué par le header lors du scroll */
  scroll-margin-top: 80px;
}
.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 2rem;
  text-align: center;
  color: var(--color-secondary);
}

/* Hero */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  min-height: 100vh;
  background-image: url('assets/hero-bg.png');
  background-size: cover;
  background-position: center;
  color: #fff;
}
.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin-top: 4rem;
}
.hero h1 {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.hero h2 {
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: 1rem;
  color: var(--color-muted);
}
.baseline {
  font-size: 1.125rem;
  margin-bottom: 2rem;
  color: var(--color-secondary);
}
.cta-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}
.btn-primary {
  background-color: var(--color-primary);
  color: #fff;
  border: 1px solid var(--color-primary);
}
.btn-primary:hover {
  background-color: #a0480a;
  border-color: #a0480a;
}
.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}
.btn-secondary:hover {
  background-color: var(--color-primary);
  color: #fff;
}
.btn-link {
  color: var(--color-primary);
  font-weight: 600;
  text-decoration: underline;
}
.btn-link:hover {
  text-decoration: none;
}

/* About */
.about-content {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}
.about-content p {
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  color: var(--color-muted);
  line-height: 1.7;
  font-size: 1.05rem;
}
.about-definition {
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  background-color: var(--color-card);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
}
.about-definition h3 {
  margin-bottom: 0.5rem;
  color: var(--color-secondary);
  font-size: 1.25rem;
  font-weight: 600;
}
.about-definition ul {
  list-style: none;
  margin-left: 0;
}
.about-definition ul li {
  margin-bottom: 0.5rem;
  position: relative;
  padding-left: 1.2rem;
  color: var(--color-muted);
}
.about-definition ul li::before {
  content: '●';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-primary);
}

/* Services */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}
.card {
  background-color: var(--color-card);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.5);
}
.card-icon {
  color: var(--color-primary);
  margin-bottom: 1rem;
}
.card h3 {
  margin-bottom: 1rem;
  font-size: 1.3rem;
  color: var(--color-secondary);
}
.card ul {
  list-style: none;
}
.card ul li {
  margin-bottom: 0.5rem;
  padding-left: 1.2rem;
  position: relative;
  color: var(--color-muted);
  font-size: 0.95rem;
}
.card ul li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-primary);
}

/* Méthode */
.method-intro {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  color: var(--color-muted);
  line-height: 1.6;
}
.method-steps {
  display: flex;
  flex-direction: column;
  gap: 2rem;
  margin-top: 3rem;
}
.step {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
}
.step-number {
  min-width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
}
.step-content h3 {
  margin-bottom: 0.25rem;
  color: var(--color-secondary);
  font-size: 1.2rem;
  font-weight: 600;
}
.step-content p {
  color: var(--color-muted);
  font-size: 0.95rem;
}

/* Projets */
.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}
.project-card {
  background-color: var(--color-card);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.project-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.5);
}
.project-card h3 {
  margin-bottom: 0.5rem;
  color: var(--color-secondary);
  font-size: 1.2rem;
}
.project-meta {
  display: block;
  margin-bottom: 0.75rem;
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 500;
}
.project-card p {
  margin-bottom: 0.75rem;
  color: var(--color-muted);
  font-size: 0.95rem;
  line-height: 1.5;
}
.project-card.case-study {
  background-color: #222;
}

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}
.skill-category h3 {
  margin-bottom: 0.5rem;
  color: var(--color-secondary);
  font-size: 1.2rem;
  font-weight: 600;
}
.skill-category ul {
  list-style: none;
}
.skill-category ul li {
  margin-bottom: 0.5rem;
  color: var(--color-muted);
  padding-left: 1.2rem;
  position: relative;
}
.skill-category ul li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--color-primary);
}
.languages {
  margin-top: 3rem;
  text-align: center;
}
.languages h3 {
  margin-bottom: 1rem;
  font-size: 1.3rem;
  color: var(--color-secondary);
}
.languages ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 2rem;
}
.languages ul li {
  color: var(--color-muted);
  font-size: 1rem;
}

/* Contact */
.contact-flex {
  display: flex;
  flex-wrap: wrap;
  gap: 3rem;
  align-items: flex-start;
  margin-top: 2rem;
}
.contact-form-wrapper,
.contact-info-wrapper {
  flex: 1 1 350px;
}
.contact-form .form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 1rem;
}
.contact-form label {
  margin-bottom: 0.25rem;
  color: var(--color-secondary);
  font-size: 0.95rem;
  font-weight: 500;
}
.contact-form input,
.contact-form textarea {
  padding: 0.75rem;
  border-radius: 4px;
  border: 1px solid #333;
  background-color: var(--color-surface);
  color: var(--color-secondary);
  font-size: 0.95rem;
}
.contact-form textarea {
  resize: vertical;
}
.contact-info {
  margin-bottom: 2rem;
}
.contact-info p {
  margin-bottom: 0.5rem;
  color: var(--color-muted);
  font-size: 0.95rem;
}
.contact-info strong {
  color: var(--color-secondary);
}
.newsletter h3 {
  margin-bottom: 0.5rem;
  color: var(--color-secondary);
  font-size: 1.2rem;
  font-weight: 600;
}
.newsletter p {
  margin-bottom: 0.75rem;
  color: var(--color-muted);
  font-size: 0.95rem;
}
.newsletter-form {
  display: flex;
  gap: 0.5rem;
}
.newsletter-form input {
  flex: 1;
  padding: 0.75rem;
  border-radius: 4px;
  border: 1px solid #333;
  background-color: var(--color-surface);
  color: var(--color-secondary);
  font-size: 0.95rem;
}
.newsletter-form button {
  padding: 0.75rem 1rem;
  border-radius: 4px;
  border: 1px solid var(--color-primary);
  background-color: transparent;
  color: var(--color-primary);
  font-weight: 600;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}
.newsletter-form button:hover {
  background-color: var(--color-primary);
  color: #fff;
}
.form-success-message {
  margin-top: 1rem;
  color: var(--color-primary);
  font-weight: 500;
  font-size: 0.95rem;
}

/* Carte de contact améliorée */
.contact-card {
  background-color: var(--color-card);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}

/* Bouton retour en haut */
.back-to-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: #fff;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1500;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease, background-color var(--transition-fast);
}
.back-to-top:hover {
  background-color: #a0480a;
}
.back-to-top.show {
  opacity: 1;
  visibility: visible;
}

/* Icônes de contact */
.contact-icon {
  margin-right: 0.5rem;
  vertical-align: middle;
}

/* Actions de contact (bouton email et message RGPD) */
.contact-actions {
  margin-top: 1.5rem;
}
.contact-actions p {
  color: var(--color-muted);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

/* Footer */
.footer {
  background-color: #111;
  padding: 2rem 0;
}
.footer-content {
  text-align: center;
}
.footer-content p {
  margin-bottom: 0.5rem;
  color: var(--color-muted);
  font-size: 0.85rem;
}

/* Responsivité */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.4rem;
  }
  .hero h2 {
    font-size: 1.25rem;
  }
  section {
    padding: 4rem 0;
  }
  .nav-menu {
    gap: 0.8rem;
  }
  .cards-grid,
  .project-grid,
  .skills-grid {
    gap: 1.5rem;
  }
  .contact-flex {
    flex-direction: column;
  }

  /* Menu mobile */
  .nav-toggle {
    display: block;
  }
  nav {
    position: relative;
  }
  .nav-menu {
    position: fixed;
    top: 64px; /* hauteur approximative du header sur mobile */
    left: 0;
    right: 0;
    width: 100%;
    background-color: var(--color-bg);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0.5rem 1rem;
    display: none !important;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    z-index: 1000;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.4);
  }
  .nav-menu li {
    width: 100%;
  }
  .nav-menu a {
    display: block;
    width: 100%;
    padding: 0.75rem 0;
    border-radius: 0;
  }
  .nav-menu.open {
    display: flex !important;
  }
  /* Augmenter la marge de défilement sur mobile pour compenser la hauteur du menu */
  section {
    scroll-margin-top: 100px;
  }
}