/* ===== FICHIER RESPONSIVE UNIFIÉ ===== */
/* Centralisation de toutes les media queries du projet */

/* ===== TRÈS LARGE ÉCRANS (1850px et moins) ===== */
@media (max-width: 1850px) {
  header {
    padding: 15px 8%;
  }
  section {
    padding: 0 8%;
  }
  .social-media {
    left: 8%;
  }
}

/* ===== GRANDES RÉSOLUTIONS (1370px et moins) ===== */
@media (max-width: 1370px) {
  header {
    padding: 15px 4%;
  }
  section {
    padding: 0 4%;
  }
  .social-media {
    left: 4%;
  }
}

/* ===== TABLETTES ET ÉCRANS MOYENS (1024px et moins) ===== */
@media (max-width: 1024px) {
  header {
    padding: 15px 30px;
  }

  .nav-menu {
    gap: 15px;
  }

  .nav-link {
    padding: 8px 15px;
    font-size: 13px;
  }

  .search-container {
    width: 180px;
  }

  .search-input {
    padding: 10px 40px 10px 15px;
    font-size: 13px;
  }

  /* ===== RESPONSIVE HOME TABLETTE ===== */
  .home {
    padding: 100px 40px 50px;
    gap: 40px;
  }

  .home-text {
    max-width: 550px;
  }

  .profile-section {
    max-width: 400px;
  }

  .profile-img {
    width: 350px;
    height: 350px;
  }

  .home-text h1 {
    font-size: 2.5rem;
  }

  /* Contact page */
  .contact-container {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .contact-left {
    padding: 30px 25px;
  }

  .contact-right {
    padding: 30px 25px;
  }

  .contact-hero h1 {
    font-size: 2.5rem;
  }
}

/* ===== TABLETTES (991px et moins) ===== */
@media (max-width: 991px) {
  /* Timeline pour parcours */
  .timeline-content::before {
    left: 30px;
  }

  .timeline-item {
    width: 100%;
    padding-left: 100px;
    padding-right: 20px;
    text-align: left;
  }

  .left-container,
  .right-container {
    left: 0;
    padding-left: 100px;
    padding-right: 20px;
  }

  .timeline-item img {
    left: -10px;
    width: 80px;
    height: 80px;
    z-index: 15;
  }

  .left-container .text-box::after,
  .right-container .text-box::after {
    left: -30px;
    border-right-color: #000;
    border-left-color: transparent;
  }
}

/* ===== MOBILES ET TABLETTES PORTRAIT (768px et moins) ===== */
@media (max-width: 768px) {
  /* ===== HEADER ET NAVIGATION ===== */
  header {
    padding: 15px 20px;
    height: 70px;
    align-items: center;
    border-bottom: none;
    display: flex;
    justify-content: space-between;
  }

  /* Logo à gauche */
  .navbar-brand {
    flex: 0 0 auto;
  }

  .logo-img {
    height: 50px;
    width: 50px;
    margin-top: 10px;
  }

  .brand-text {
    display: none;
  }

  /* Menu caché par défaut sur mobile */
  .navbar-nav {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    height: calc(100vh - 70px);
    background: rgba(0, 0, 0, 0.95);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: 50px;
    transform: translateX(-100%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
  }

  .navbar-nav.active {
    transform: translateX(0);
  }

  .nav-menu {
    flex-direction: column;
    gap: 0;
    width: 90%;
    text-align: center;
  }

  .nav-item {
    width: 100%;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .nav-item:last-child {
    border-bottom: none;
  }

  .nav-link {
    padding: 20px;
    font-size: 16px;
    width: 100%;
    display: block;
    transition: all 0.3s ease;
  }

  .nav-link:hover {
    background: rgba(78, 115, 223, 0.2);
    transform: translateX(10px);
  }

  /* Container pour recherche et bouton mobile */
  .navbar-extras {
    display: flex;
    align-items: center;
    flex: 0 0 auto;
  }

  /* Masquer complètement la recherche sur mobile */
  .search-container {
    display: none !important;
  }

  /* Bouton menu mobile */
  .mobile-menu-btn {
    display: flex !important;
    flex-direction: column;
    gap: 4px;
    border: 2px solid var(--primary-color);
    background: none;
    cursor: pointer;
    padding: 10px;
    border-radius: 6px;
    transition: all 0.3s ease;
    z-index: 1001;
    position: relative;
  }

  .mobile-menu-btn:hover {
    background: rgba(78, 115, 223, 0.1);
  }

  /* Lignes du bouton hamburger */
  .mobile-menu-btn span {
    width: 25px;
    height: 3px;
    background: white;
    border-radius: 2px;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
    display: block;
  }

  /* Animation du bouton hamburger */
  .mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
  }

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

  .mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
  }

  /* Overlay pour fermer le menu */
  .navbar-nav.active::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: -1;
  }

  /* Optimisation vidéo d'arrière-plan pour mobile */
  .background-video {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
    opacity: 0.2;
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
  }

  /* ===== RESPONSIVE HOME SECTION ===== */
  .home {
    flex-direction: column;
    padding: 80px 20px 60px;
    text-align: center;
    min-height: auto;
    height: auto;
  }

  .home-text {
    position: relative;
    max-width: 100%;
    order: 1;
    margin-bottom: 30px;
  }

  .main-btn {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin: 20px 0;
  }

  .main-btn a {
    padding: 10px 20px;
    font-size: 14px;
  }

  .home-text h1 {
    font-size: 2.2rem;
    line-height: 1.2;
  }

  .home-text span {
    font-size: 14px;
  }

  .home-text p {
    font-size: 16px;
    margin: 20px 0;
  }

  .profile-section {
    order: 0;
    max-width: 280px;
    margin: 0 auto 30px;
  }

  .profile-img {
    width: 280px;
    height: 280px;
  }

  .social-media {
    position: relative;
    left: 0;
    justify-content: center;
    margin-top: 30px;
  }

  .social-media a {
    width: 45px;
    height: 45px;
    font-size: 18px;
  }

  /* ===== RESPONSIVE PARCOURS SECTION ===== */
  .parcours-section {
    padding: 50px 0;
  }

  /* ===== RESPONSIVE EXPERIENCE SECTION ===== */
  .experiences-section {
    padding: 50px 0;
  }

  /* ===== FORMULAIRES RESPONSIVE ===== */
  .contact-container {
    grid-template-columns: 1fr !important;
    gap: 30px !important;
    padding: 20px 15px;
    margin: 20px 10px;
  }

  .form-container {
    padding: 20px 15px;
    margin: 20px 10px;
  }

  .form-row {
    grid-template-columns: 1fr !important;
    gap: 0 !important;
  }

  .form-group {
    margin-bottom: 20px;
  }

  .form-group label {
    font-size: 14px;
    margin-bottom: 8px;
  }

  .form-group input,
  .form-group textarea,
  .form-group select {
    padding: 12px 15px;
    font-size: 16px; /* Important pour éviter le zoom sur iOS */
    border-radius: 8px;
  }

  .captcha-group,
  .captcha-box {
    flex-direction: column !important;
    gap: 12px !important;
    align-items: stretch !important;
  }

  .captcha-question {
    text-align: center !important;
    padding: 12px !important;
    background: rgba(78, 115, 223, 0.1) !important;
    border-radius: 8px !important;
    font-size: 1rem !important;
  }

  #captcha-input,
  .captcha-answer {
    text-align: center !important;
    font-size: 16px !important;
    padding: 12px !important;
    width: 100% !important;
  }

  .captcha-refresh {
    width: 100% !important;
    padding: 12px !important;
    justify-content: center !important;
  }

  .btn-submit,
  .contact-button {
    width: 100% !important;
    padding: 15px !important;
    font-size: 16px !important;
  }

  .form-actions {
    margin-top: 20px;
  }

  /* Contact page specific */
  .contact {
    padding: 30px 15px;
  }

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

  .contact-left {
    padding: 25px 20px !important;
    margin-bottom: 20px;
    position: relative;
    right: 15px;
  }

  .contact-right {
    padding: 25px 20px !important;
    position: relative;
    right: 15px;
  }

  .contact-item {
    flex-direction: row !important;
    gap: 15px !important;
    padding: 15px !important;
  }

  .contact-icon {
    width: 50px !important;
    height: 50px !important;
    font-size: 1.2rem !important;
  }

  .contact-details h3 {
    font-size: 1rem !important;
  }

  .contact-details p {
    font-size: 0.9rem !important;
  }

  .contact-info-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .contact-info-card {
    padding: 20px;
  }

  .contact-form,
  .form-header {
    padding: 20px 15px;
  }

  .form-header h2 {
    font-size: 1.6rem !important;
  }

  .form-header p {
    font-size: 0.95rem !important;
  }

  /* ===== EXPERIENCES ET PARCOURS ===== */
  .experiences-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .section-title h2 {
    font-size: 2rem;
  }

  .column-header {
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }

  .card-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  /* ===== CERTIFICATIONS RESPONSIVE ===== */
  .certificate {
    padding: 80px 10px 20px;
  }

  .certif-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 10px;
    max-width: 100%;
  }

  /* Réorganiser les éléments pour mobile */
  .certif-item.five {
    order: -1; /* "Mes Certifications" en premier */
    background: linear-gradient(
      135deg,
      var(--primary-color),
      var(--secondary-color)
    );
    border: 2px solid rgba(255, 255, 255, 0.3);
    min-height: 120px;
    display: flex !important;
    justify-content: center;
    align-items: center;
    cursor: default;
    margin-bottom: 15px;
  }

  .certif-item.five:hover {
    transform: none !important;
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 5px 20px rgba(78, 115, 223, 0.2);
  }

  .certif-item.five .title {
    font-size: 1.8rem;
    text-align: center;
    color: white;
    margin: 0;
  }

  /* Container pour les certifications 2x2 */
  .certif-grid::after {
    content: "";
    display: none;
  }

  /* Regrouper les certifications par 2 */
  .certif-item:not(.five) {
    width: calc(50% - 10px);
    min-height: 220px;
    padding: 12px;
    border-radius: 12px;
    background: rgba(0, 0, 0, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.15);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.3s ease;
    float: left;
    margin-right: 20px;
    margin-bottom: 20px;
  }

  /* Créer une grille 2x2 pour les certifications */
  .certif-grid {
    display: block;
  }

  .certif-grid::after {
    content: "";
    display: table;
    clear: both;
  }

  /* Chaque ligne de 2 certifications */
  .certif-item:not(.five):nth-child(even) {
    margin-right: 0;
  }

  .certif-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 8px 25px rgba(78, 115, 223, 0.3);
  }

  .certif-item img {
    width: 60px;
    height: 60px;
    object-fit: contain;
    border-radius: 8px;
    margin: 0 auto 10px;
    background: rgba(255, 255, 255, 0.15);
    padding: 8px;
  }

  .certif-date {
    font-size: 0.8rem;
    color: #e0e0e0;
    text-align: center;
    margin: 5px 0;
  }

  .certif-link {
    margin: 8px 0 0;
    text-align: center;
  }

  .certif-link a {
    color: var(--secondary-color);
    text-decoration: none;
    font-size: 0.8rem;
    font-weight: 500;
    transition: color 0.3s ease;
  }

  .certif-link a:hover {
    color: white;
  }

  .certif-link i {
    margin-left: 5px;
    font-size: 0.7rem;
  }

  /* Masquer les descriptions par défaut sur mobile */
  .description {
    display: none;
  }

  /* Styles pour la vue détaillée (modal) sur mobile */
  .certif-item.active {
    position: fixed !important;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1000;
    border-radius: 0;
    background: rgba(0, 0, 0, 0.95);
    -webkit-backdrop-filter: blur(15px);
    backdrop-filter: blur(15px);
    padding: 80px 20px 40px;
    justify-content: flex-start;
    align-items: center;
    overflow-y: auto;
    display: flex !important;
    flex-direction: column;
  }

  .certif-item .progress-bar {
    display: none;
  }

  .certif-item.active img {
    width: 60px;
    height: 60px;
    margin: 0 auto 20px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.1);
    padding: 15px;
    border: 2px solid rgba(78, 115, 223, 0.3);
  }

  .certif-item.active .certif-title {
    display: block !important;
    font-size: 1.4rem;
    margin-bottom: 10px;
    color: #ffffff;
    text-align: center;
    font-weight: 600;
    line-height: 1.3;
    max-width: 90%;
    word-wrap: break-word;
    overflow-wrap: break-word;
    -webkit-hyphens: auto;
    hyphens: auto;
  }

  .certif-item.active .certif-date {
    font-size: 1rem;
    margin-bottom: 20px;
    color: var(--secondary-color);
    text-align: center;
    font-weight: 500;
  }

  .certif-item.active .description {
    display: block;
    font-size: 0.95rem;
    line-height: 1.6;
    color: #e0e0e0;
    margin: 20px 0 30px;
    text-align: center;
    padding: 20px;
    max-width: 90%;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.1);
  }

  .certif-item.active .certif-link {
    margin: 20px 0;
    text-align: center;
  }

  .certif-item.active .certif-link a {
    display: inline-block;
    font-size: 1rem;
    color: white;
    font-weight: 600;
    text-decoration: none;
    background: var(--secondary-color);
    padding: 12px 30px;
    border-radius: 25px;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.5px;
  }

  .certif-item.active .certif-link a:hover {
    background: #22d394;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(28, 200, 138, 0.4);
  }

  /* Bouton de fermeture amélioré */
  .close {
    display: none;
  }

  .certif-item.active .close {
    display: flex;
    position: fixed;
    top: 30px;
    right: 30px;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    color: white;
    font-size: 1.8rem;
    cursor: pointer;
    z-index: 1001;
    transition: all 0.3s ease;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  }

  .certif-item.active .close:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.1) rotate(90deg);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
  }

  .certif-item.active .close:active {
    transform: scale(0.95) rotate(90deg);
  }

  .parcours-container h2,
  .experiences-content h2,
  .stage h2 {
    font-size: 2rem;
  }

  .timeline-content {
    padding: 20px 0;
  }

  .timeline-item {
    margin-bottom: 30px;
    padding-left: 80px;
  }

  .timeline-item img {
    width: 70px;
    height: 70px;
    left: -5px;
    z-index: 15;
  }

  .text-box {
    padding: 20px;
  }

  .text-box h2 {
    font-size: 1.2rem;
  }

  .text-box span {
    font-size: 0.8rem;
    padding: 3px 10px;
    margin-bottom: 10px;
  }

  .text-box p {
    font-size: 0.9rem;
  }

  /* ===== THÈME TOGGLE ===== */
  .theme-toggle-btn {
    width: 40px;
    height: 40px;
    font-size: 16px;
    margin-right: 10px;
  }

  /* ===== EMPÊCHER LE SCROLL HORIZONTAL ===== */
  body {
    overflow-x: hidden;
  }

  /* Ajuster le padding-top du contenu principal */
  main,
  .content,
  section:first-of-type {
    padding-top: 0px !important;
  }

  /* Styles pour les formulaires sur mobile */
  .form-group input,
  .form-group textarea,
  .form-group select {
    font-size: 16px; /* Évite le zoom sur iOS */
  }

  /* Messages d'erreur et de succès */
  .success-message,
  .error-message {
    padding: 12px 15px;
    margin: 15px 0;
    border-radius: 8px;
    font-size: 14px;
  }

  /* Timeline messages */
  .messages-container {
    padding: 20px 15px;
  }

  .message-item {
    margin-bottom: 15px;
    padding: 15px;
  }

  .message-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 5px;
  }

  .message-date {
    font-size: 12px;
  }
}

/* ===== TABLETTES SMALL (767px et moins) ===== */
@media (max-width: 767px) {
  .timeline-content::before {
    left: 30px;
  }

  .timeline-item {
    width: 100%;
    padding-left: 100px;
    padding-right: 20px;
    text-align: left;
  }

  .left-container,
  .right-container {
    left: 0;
    padding-left: 100px;
    padding-right: 20px;
  }

  .timeline-item img {
    left: -10px;
    width: 80px;
    height: 80px;
    z-index: 15;
  }

  .left-container .text-box::after,
  .right-container .text-box::after {
    left: -30px;
    border-right-color: #000;
    border-left-color: transparent;
  }
}

/* ===== MOBILES SMALL (575px et moins) ===== */
@media (max-width: 575px) {
  .timeline-content::before {
    left: 20px;
  }

  .timeline-item {
    padding-left: 70px;
  }

  .timeline-item img {
    left: -10px;
    width: 60px;
    height: 60px;
    z-index: 15;
  }

  .parcours-container h2,
  .experiences-content h2 {
    font-size: 1.8rem;
    margin-bottom: 25px;
  }

  .text-box h2 {
    font-size: 1.1rem;
  }
}

/* ===== PETITS MOBILES (480px et moins) ===== */
@media (max-width: 480px) {
  .navbar-nav {
    padding-top: 30px;
  }

  .nav-menu {
    width: 95%;
  }

  .nav-link {
    padding: 18px 15px;
    font-size: 15px;
  }

  .contact-hero h1 {
    font-size: 1.8rem;
  }

  .contact-hero p {
    font-size: 0.9rem;
  }

  .contact-left,
  .contact-right {
    padding: 20px 15px;
  }

  .contact-item {
    padding: 12px;
    flex-direction: column;
    text-align: center;
    gap: 10px;
  }

  .contact-icon {
    width: 45px;
    height: 45px;
    font-size: 1.1rem;
  }

  .contact-details h3 {
    font-size: 0.95rem;
  }

  .contact-details p {
    font-size: 0.85rem;
  }

  .form-header h2 {
    font-size: 1.5rem;
  }

  .form-header p {
    font-size: 0.9rem;
  }

  .contact-form {
    padding: 20px 15px;
  }

  .form-group input,
  .form-group textarea,
  .form-group select {
    padding: 10px 12px;
    font-size: 15px;
  }

  .captcha-box {
    padding: 12px;
    gap: 10px;
  }

  .captcha-question {
    font-size: 0.9rem;
    padding: 10px;
  }

  .captcha-answer {
    font-size: 15px;
    padding: 10px 12px;
  }

  .captcha-refresh {
    padding: 10px 18px;
  }

  .contact-button {
    padding: 14px;
    font-size: 15px;
  }

  .contact-info-card {
    padding: 15px;
  }

  .contact-form {
    padding: 20px 15px;
  }

  /* ===== HOME PETITS MOBILES ===== */
  .home {
    padding: 70px 15px 30px;
  }

  .home-text h1 {
    font-size: 1.8rem;
    line-height: 1.1;
  }

  .profile-section {
    max-width: 250px;
  }

  .profile-img {
    width: 250px;
    height: 250px;
  }

  .social-media a {
    width: 40px;
    height: 40px;
    font-size: 16px;
    border: 1px solid rgba(255, 255, 255, 0.2);
  }

  /* ===== CERTIFICATIONS PETITS MOBILES ===== */
  .certificate {
    padding: 70px 5px 20px;
  }

  .certif-grid {
    padding: 5px;
  }

  /* "Mes Certifications" sur petits mobiles */
  .certif-item.five {
    min-height: 100px;
    margin-bottom: 15px;
  }

  .certif-item.five .title {
    font-size: 1.6rem;
  }

  /* Certifications 2x2 sur petits mobiles */
  .certif-item:not(.five) {
    width: calc(50% - 8px);
    min-height: 200px;
    padding: 10px;
    margin-right: 16px;
    margin-bottom: 16px;
    background: rgba(0, 0, 0, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.15);
  }

  .certif-item:not(.five):nth-child(even) {
    margin-right: 0;
  }

  .certif-item img {
    width: 50px;
    height: 50px;
    margin-bottom: 8px;
    padding: 6px;
    background: rgba(255, 255, 255, 0.15);
  }

  .certif-title {
    display: none; /* Masquer les titres sur petits mobiles aussi */
  }

  .certif-date {
    display: none;
  }

  .certif-date {
    font-size: 0.75rem;
    margin: 4px 0;
    color: #e0e0e0;
  }

  .certif-link {
    margin: 6px 0 0;
  }

  .certif-link a {
    font-size: 0.75rem;
  }

  .certif-link i {
    font-size: 0.65rem;
  }

  /* Vue détaillée sur petits mobiles */
  .certif-item.active {
    padding: 70px 15px 15px;
  }

  .certif-item.active img {
    width: 100px;
    height: 100px;
    margin: 15px auto 25px;
  }

  .certif-item.active .certif-title {
    font-size: 1.2rem;
    line-height: 1.4;
    padding: 0 10px;
  }

  .certif-item.active .description {
    font-size: 0.95rem;
    padding: 0 5px;
  }
}

/* ===== TRÈS PETITS MOBILES (320px et moins) ===== */
@media (max-width: 320px) {
  .home-text h1 {
    font-size: 1.6rem;
  }

  .profile-img {
    width: 220px;
    height: 220px;
  }

  .contact-hero h1 {
    font-size: 1.6rem;
  }

  .contact-hero p {
    font-size: 0.85rem;
  }

  .contact-left,
  .contact-right {
    padding: 15px 10px;
  }

  .contact-item {
    padding: 10px;
  }

  .contact-icon {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .form-header h2 {
    font-size: 1.3rem;
  }

  .form-group input,
  .form-group textarea,
  .form-group select {
    padding: 10px;
    font-size: 14px;
  }

  .contact-button {
    padding: 12px;
    font-size: 14px;
  }
}

/* ===== MEDIA QUERIES SPÉCIALES ===== */

/* Correction du backdrop-filter ordre */
@media (max-width: 768px) {
  .navbar-nav {
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
  }
}

/* High DPI screens */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .logo-img,
  .profile-img {
    image-rendering: -webkit-optimize-contrast;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
  }
}

/* Landscape orientation sur mobile */
@media (max-width: 768px) and (orientation: landscape) {
  .home {
    flex-direction: row;
    padding: 60px 20px 30px;
    align-items: center;
  }

  .home-text {
    flex: 1;
    text-align: left;
    margin-right: 30px;
  }

  .profile-section {
    flex: 0 0 200px;
    margin: 0;
  }

  .profile-img {
    width: 200px;
    height: 200px;
  }
}

/* Reduced motion preferences */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Print styles */
@media print {
  header,
  .mobile-menu-btn,
  .social-media,
  .background-video {
    display: none !important;
  }

  body {
    background: white !important;
    color: black !important;
  }

  .nav-menu,
  main {
    position: static !important;
    margin: 0 !important;
    padding: 0 !important;
  }
}

/** RESPONSIVE BTS.PHP **/
@media (max-width: 991px) {
  .bts-hero-content h1 {
    font-size: 3rem;
  }

  .option-card {
    flex: 0 0 100%;
    max-width: 100%;
  }

  .options-container {
    gap: 20px;
  }
}

@media (max-width: 767px) {
  .bts-hero {
    min-height: 70vh;
  }

  .bts-hero-content h1 {
    font-size: 2.5rem;
  }

  .bts-hero-content p {
    font-size: 1rem;
  }

  .hero-icons {
    gap: 20px;
  }

  .hero-icons i {
    font-size: 2.5rem;
  }

  .bts-options {
    padding: 60px 0;
  }

  .section-title h2 {
    font-size: 2rem;
  }

  .card-inner {
    padding: 30px 20px;
  }

  .competence-item {
    flex-direction: column;
    text-align: center;
  }

  .competence-icon {
    margin: 0 auto 15px;
  }
}

@media (max-width: 575px) {
  .bts-hero-content h1 {
    font-size: 2rem;
  }

  .section-title h2 {
    font-size: 1.8rem;
  }

  .option-title {
    font-size: 1.5rem;
  }

  .hero-icons {
    flex-direction: column;
    align-items: center;
    gap: 15px;
  }
}

/** RESPONSIVE CERTIFICATE.PHP**/
@media (max-width: 1024px) {
  .certif-grid {
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(4, 200px);
    gap: 15px;
  }

  .certif-grid .certif-item:nth-of-type(1) {
    grid-column: 1;
    grid-row: 1;
  }
  .certif-grid .certif-item:nth-of-type(2) {
    grid-column: 2;
    grid-row: 1;
  }
  .certif-grid .certif-item:nth-of-type(3) {
    grid-column: 3;
    grid-row: 1;
  }
  .certif-grid .certif-item:nth-of-type(4) {
    grid-column: 1;
    grid-row: 2;
  }

  .certif-grid .certif-item:nth-of-type(5) {
    grid-column: 2/4;
    grid-row: 2/3;
  }

  .certif-grid .certif-item:nth-of-type(6) {
    grid-column: 1;
    grid-row: 3;
  }
  .certif-grid .certif-item:nth-of-type(7) {
    grid-column: 2;
    grid-row: 3;
  }
  .certif-grid .certif-item:nth-of-type(8) {
    grid-column: 3;
    grid-row: 3;
  }
  .certif-grid .certif-item:nth-of-type(9) {
    grid-column: 1;
    grid-row: 4;
  }
  .certif-grid .certif-item:nth-of-type(10) {
    grid-column: 2;
    grid-row: 4;
  }
  .certif-grid .certif-item:nth-of-type(11) {
    grid-column: 3;
    grid-row: 4;
  }

  .certif-grid .certif-item .title {
    font-size: 2rem;
  }
}

@media (max-width: 768px) {
  .certificate {
    padding: 30px 10px;
  }

  .certif-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(6, 180px);
    gap: 10px;
    padding: 10px;
  }

  .certif-grid .certif-item:nth-of-type(1) {
    grid-column: 1;
    grid-row: 1;
  }
  .certif-grid .certif-item:nth-of-type(2) {
    grid-column: 2;
    grid-row: 1;
  }
  .certif-grid .certif-item:nth-of-type(3) {
    grid-column: 1;
    grid-row: 2;
  }
  .certif-grid .certif-item:nth-of-type(4) {
    grid-column: 2;
    grid-row: 2;
  }

  .certif-grid .certif-item:nth-of-type(5) {
    grid-column: 1/3;
    grid-row: 3;
  }

  .certif-grid .certif-item:nth-of-type(6) {
    grid-column: 1;
    grid-row: 4;
  }
  .certif-grid .certif-item:nth-of-type(7) {
    grid-column: 2;
    grid-row: 4;
  }
  .certif-grid .certif-item:nth-of-type(8) {
    grid-column: 1;
    grid-row: 5;
  }
  .certif-grid .certif-item:nth-of-type(9) {
    grid-column: 2;
    grid-row: 5;
  }
  .certif-grid .certif-item:nth-of-type(10) {
    grid-column: 1;
    grid-row: 6;
  }
  .certif-grid .certif-item:nth-of-type(11) {
    grid-column: 2;
    grid-row: 6;
  }

  .certif-grid .certif-item .title {
    font-size: 1.5rem;
    padding: 15px;
  }

  .certif-grid .certif-item .certif-title {
    font-size: 0.8rem;
    bottom: 30px;
    padding: 6px 10px;
  }

  .certif-grid .certif-item .certif-date {
    font-size: 0.7rem;
    bottom: 8px;
    padding: 4px 10px;
  }

  .certif-grid .certif-item.active img {
    width: 145px;
    height: 145px;
    left: 10%;
    top: 18%;
  }

  .certif-grid .certif-item.active .certif-title,
  .certif-grid .certif-item.active .certif-date {
    left: 50%;
    width: 40%;
    font-size: 1.2rem;
  }

  .certif-grid .certif-item.active .percentage {
    display: none;
  }

  .certif-grid .certif-item.active .certif-link {
    right: 5%;
    width: 70%;
    top: 70%;
  }

  .certif-grid .certif-item.active .certif-link a {
    font-size: 0.9rem;
    padding: 10px 16px;
    bottom: 90px;
  }

  .certif-grid .certif-item .description {
    width: 80%;
    right: 10%;
    font-size: 1rem;
    padding: 20px;
    top: 40%;
  }
}

@media (max-width: 480px) {
  .certif-grid {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(9, 160px);
  }

  .certif-grid .certif-item {
    grid-column: 1 !important;
  }

  .certif-grid .certif-item:nth-of-type(5) {
    grid-row: 5;
  }

  .certif-grid .certif-item .title {
    font-size: 1.3rem;
  }
}

/** RESPONSIVE PROJECT.PHP **/
@media (max-width: 1200px) {
  .banner {
    padding: 0 50px;
    flex-direction: column;
    gap: 40px;
    justify-content: center;
  }

  .carousel-box {
    width: 100%;
    max-width: 500px;
  }

  .content {
    max-width: 100%;
    text-align: center;
  }
}

@media (max-width: 768px) {
  .banner {
    padding: 0 20px;
  }

  .carousel-box {
    height: auto;
    min-height: 400px;
    margin-bottom: 50px;
  }

  .carousel-page {
    grid-template-columns: 1fr;
    gap: 10px;
    grid-auto-rows: 120px;
  }

  .carousel-track {
    height: auto;
  }

  .carousel-btn {
    display: none;
  }

  .content h3 {
    font-size: 24px;
  }

  .project-title {
    width: 80px;
    height: 80px;
  }

  #projectTechnologies {
    justify-content: center;
  }

  .buttons {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }

  .btn-see,
  .btn-specifications {
    width: 100%;
    max-width: 200px;
    justify-content: center;
  }
}