/* ============================================
   Africa Digital - Site vitrine | Design professionnel
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');
@import 'variables.css';

/* ---- Reset & base ---- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--gray-50);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: color var(--transition-fast), opacity var(--transition-fast); }
button { font-family: inherit; cursor: pointer; border: none; }

/* ---- Layout ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--section-padding-x);
}

.section {
  padding: var(--section-padding-y) 0;
}
.section--alt {
  background: var(--white);
  box-shadow: var(--shadow-xs);
}
.section-title {
  font-size: clamp(1.625rem, 3.5vw, 2.25rem);
  font-weight: 700;
  color: var(--primary-dark);
  margin: 0 0 0.5rem;
  letter-spacing: var(--letter-tight);
  line-height: 1.25;
}
.section-subtitle {
  font-size: 1.0625rem;
  color: var(--gray-600);
  max-width: 540px;
  margin: 0 0 2.5rem;
  line-height: 1.55;
}

/* ========== NAVBAR ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 1.5rem;
  background: var(--nav-bg);
  backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(180%);
  transition: background var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
  pointer-events: auto;
  border-bottom: 1px solid var(--nav-border);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}
.navbar.scrolled {
  background: var(--nav-bg-scrolled);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}
.navbar .navbar__inner { pointer-events: auto; }

.navbar__inner {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

@media (min-width: 993px) {
  .navbar__inner nav {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: var(--radius-full);
    padding: 0.25rem 0.35rem;
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15), inset 0 1px 0 0 rgba(255, 255, 255, 0.2);
  }
  .navbar.scrolled .navbar__inner nav {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.08));
    border-color: rgba(255, 255, 255, 0.25);
  }
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: 0.875rem;
}
.navbar__logo-icon {
  height: 44px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}
.navbar__logo-icon img {
  height: 100%;
  width: auto;
  max-width: 130px;
  object-fit: contain;
}
.navbar__logo-text { display: flex; flex-direction: column; gap: 0.1rem; }
.navbar__logo-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: var(--letter-tight);
  line-height: 1.2;
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}
.navbar__logo-tagline {
  font-size: 0.6875rem;
  color: rgba(255, 255, 255, 0.75);
  font-weight: 500;
  letter-spacing: var(--letter-wide);
  text-transform: uppercase;
}

#nav-menu {
  display: block;
}

.navbar__menu {
  display: flex;
  align-items: center;
  gap: 0.1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.navbar__link {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.5rem 0.75rem;
  color: rgba(255, 255, 255, 0.95);
  font-weight: 500;
  font-size: 0.875rem;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  position: relative;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}
/* Niveau principal du menu : même capitalisation partout (comme ACCUEIL / CONTACT sur l’accueil) */
.navbar__menu > li > .navbar__link {
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.navbar__link:hover,
.navbar__link[aria-current="page"] {
  color: var(--white);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.1));
  box-shadow: 0 4px 15px rgba(255, 255, 255, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
}
.navbar__link .dropdown-arrow {
  width: 0; height: 0;
  border-left: 3px solid transparent;
  border-right: 3px solid transparent;
  border-top: 4px solid currentColor;
  margin-left: 2px;
}

.navbar__item { position: relative; }
.navbar__dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  padding: 0.5rem;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px rgba(31, 38, 135, 0.2), 0 2px 8px rgba(0, 0, 0, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.3);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  list-style: none;
  margin: 0;
  margin-top: 0.5rem;
}
.navbar__item:hover .navbar__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.navbar__dropdown .navbar__link {
  color: var(--gray-800);
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
  text-transform: none;
  letter-spacing: normal;
}
.navbar__dropdown .navbar__link:hover {
  background: linear-gradient(135deg, var(--primary-100), var(--primary-50));
  color: var(--primary-700);
  transform: translateX(3px);
}

.navbar__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 10px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.15), rgba(255, 255, 255, 0.05));
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: all var(--transition-fast);
}
.navbar__burger:hover {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.1));
  transform: scale(1.05);
}
.navbar__burger span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--white);
  border-radius: 1px;
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}
.navbar__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.navbar__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 992px) {
  .navbar__burger { 
    display: flex; 
  }
  
  /* Overlay sombre derrière le menu */
  .navbar__inner::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
    z-index: 9998;
  }
  
  /* Overlay visible quand menu ouvert */
  #nav-menu.active ~ .navbar__inner::before,
  body:has(#nav-menu.active) .navbar__inner::before {
    opacity: 1;
    visibility: visible;
  }
  
  /* Menu mobile - caché par défaut hors écran à gauche */
  #nav-menu {
    position: fixed !important;
    left: 0 !important;
    top: 72px !important;
    width: 85% !important;
    max-width: 380px !important;
    height: calc(100vh - 72px) !important;
    background: rgba(255, 255, 255, 0.98) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    overflow-y: auto;
    overflow-x: hidden;
    transform: translateX(-100%) !important;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    z-index: 99999 !important;
    box-shadow: 2px 0 20px rgba(0, 0, 0, 0.2);
    -webkit-overflow-scrolling: touch;
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
  }
  
  /* Menu mobile ouvert - glisse vers la droite */
  #nav-menu.active {
    transform: translateX(0) !important;
  }
  
  .navbar__menu {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    padding: 2rem 1.5rem;
    gap: 0.5rem;
    min-height: 100%;
    list-style: none;
    margin: 0;
  }
  
  .navbar__menu > li {
    width: 100%;
  }
  
  .navbar__link { 
    padding: 0.875rem 1rem; 
    font-size: 1rem;
    display: block;
    width: 100%;
    text-align: left;
    border-radius: 8px;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.1), rgba(59, 130, 246, 0.05));
    margin-bottom: 0.5rem;
    color: var(--primary-700);
    font-weight: 600;
  }
  
  .navbar__link:hover,
  .navbar__link:active {
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.2), rgba(59, 130, 246, 0.1));
    color: var(--primary-800);
  }
  
  .navbar__item {
    width: 100%;
  }
  
  .navbar__dropdown {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    max-height: 0;
    overflow: hidden;
    background: rgba(30, 64, 175, 0.05);
    margin: 0 0 0.5rem 0;
    padding: 0;
    border-radius: 8px;
    transition: max-height 0.3s ease-in-out, padding 0.3s ease-in-out;
  }
  
  .navbar__dropdown .navbar__link {
    background: transparent;
    padding-left: 1.5rem;
    margin-bottom: 0;
    font-weight: 500;
  }
  
  .navbar__item.active .navbar__dropdown { 
    max-height: 300px; 
    padding: 0.5rem 0; 
  }
}

/* ========== HERO ========== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--header-height) + 3rem) 1.5rem 3rem;
  background: var(--primary-800);
  color: var(--white);
  text-align: center;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  object-fit: cover;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.4;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(30, 58, 138, 0.88) 0%, rgba(30, 58, 138, 0.94) 100%);
  pointer-events: none;
  z-index: 1;
}
.hero__content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}
.hero__badge {
  display: inline-block;
  padding: 0.35rem 0.875rem;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: rgba(255, 255, 255, 0.95);
  letter-spacing: var(--letter-wide);
  text-transform: uppercase;
}
.hero__title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: var(--letter-tight);
  margin: 0 0 1rem;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.15);
}
.hero__subtitle {
  font-size: clamp(0.9375rem, 2vw, 1.125rem);
  opacity: 0.92;
  margin: 0 0 1.75rem;
  font-weight: 500;
  line-height: 1.55;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 1.75rem;
  background: var(--white);
  color: var(--primary-700);
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}
.hero__cta:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
  background: var(--white);
}

/* ========== SECTIONS & CARDS ========== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
}
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: box-shadow var(--transition-normal), border-color var(--transition-normal), transform var(--transition-normal);
}
.card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--gray-300);
  transform: translateY(-2px);
}
.card__media {
  aspect-ratio: 16/10;
  background: var(--gray-100);
  overflow: hidden;
}
.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}
.card:hover .card__media img {
  transform: scale(1.02);
}
.card__body {
  padding: 1.25rem 1.5rem;
}
.card__title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--primary-dark);
  margin: 0 0 0.5rem;
  letter-spacing: var(--letter-tight);
}
.card__text {
  color: var(--gray-600);
  margin: 0 0 1rem;
  font-size: 0.9375rem;
  line-height: 1.5;
}
.card__body .btn {
  font-size: 0.875rem;
  padding: 0.6rem 1.25rem;
}

.events-tabs {
  display: flex;
  gap: 0.35rem;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
}
.events-tabs button {
  padding: 0.5rem 1rem;
  background: var(--white);
  color: var(--gray-600);
  font-weight: 600;
  font-size: 0.875rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
  transition: all var(--transition-fast);
}
.events-tabs button:hover { color: var(--primary-600); border-color: var(--primary-200); }
.events-tabs button.is-active {
  background: var(--primary-600);
  color: var(--white);
  border-color: var(--primary-600);
}

/* Partenaires */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1.5rem;
  align-items: center;
  justify-items: center;
}
.partners-grid__item {
  filter: grayscale(1) opacity(0.75);
  transition: filter var(--transition-fast);
  padding: 1.25rem;
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--gray-200);
  min-height: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.partners-grid__item:hover { filter: grayscale(0) opacity(1); }
.partners-grid__item img { max-height: 56px; width: auto; margin: 0 auto; }
.partner-name { font-weight: 600; color: var(--primary-700); text-align: center; font-size: 0.875rem; line-height: 1.35; }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.about__media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--gray-200);
}
.about__media img { width: 100%; height: 100%; object-fit: cover; }
.about__content .section-title { margin-bottom: 0.75rem; }
.about__content p { color: var(--gray-600); margin: 0 0 1rem; line-height: 1.6; }
@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; }
}

/* ========== CONTACT INFO BLOCK ========== */
.contact-info-block {
  margin-bottom: 2rem;
  padding: 1.5rem 1.75rem;
  background: var(--gray-50);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
}
.contact-info-block p {
  margin: 0 0 0.5rem;
  font-size: 0.9375rem;
  color: var(--gray-700);
}
.contact-info-block p:last-of-type { margin-bottom: 0; }
.contact-info-block a {
  color: var(--primary-600);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.contact-info-block a:hover { color: var(--primary-700); }
.contact-info-block p:last-of-type { margin-top: 1rem; }

/* ========== FORMULAIRES ========== */
.form-block {
  max-width: 560px;
  margin: 0 auto;
  background: var(--white);
  padding: 2rem 2.25rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
}
.form-group {
  margin-bottom: 1.125rem;
}
.form-group label {
  display: block;
  font-weight: 600;
  color: var(--gray-800);
  margin-bottom: 0.4rem;
  font-size: 0.875rem;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.65rem 1rem;
  font-family: inherit;
  font-size: 0.9375rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  background: var(--white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}
.form-group textarea { min-height: 112px; resize: vertical; }

.form-image-zone {
  aspect-ratio: 16/9;
  max-height: 200px;
  background: var(--gray-50);
  border: 2px dashed var(--gray-300);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 0.5rem;
  color: var(--gray-500);
  font-size: 0.875rem;
  cursor: pointer;
  transition: border-color var(--transition-fast), background var(--transition-fast);
}
.form-image-zone:hover,
.form-image-zone.has-file {
  border-color: var(--primary-400);
  background: var(--primary-50);
  color: var(--primary-700);
}
.form-image-zone input[type="file"] { display: none; }
.form-image-zone svg { width: 40px; height: 40px; opacity: 0.6; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.7rem 1.5rem;
  font-weight: 600;
  font-size: 0.9375rem;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}
.btn--primary {
  background: var(--primary-600);
  color: var(--white);
  border: 1px solid var(--primary-600);
}
.btn--primary:hover {
  background: var(--primary-700);
  border-color: var(--primary-700);
  color: var(--white);
}
.btn--outline {
  background: transparent;
  color: var(--primary-600);
  border: 2px solid var(--primary-600);
}
.btn--outline:hover { background: var(--primary-50); }

/* ========== FOOTER ========== */
.footer {
  background: var(--primary-900);
  color: rgba(255, 255, 255, 0.88);
  padding: 2.75rem 0 1.75rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}
.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 1.75rem;
}
.footer__logo {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}
.footer__logo-img {
  height: 36px;
  width: auto;
  max-width: 110px;
  object-fit: contain;
  opacity: 0.95;
}
.footer__logo .navbar__logo-title {
  margin-bottom: 0;
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--white);
}
.footer__logo .navbar__logo-tagline {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.8125rem;
}
.footer__title {
  font-size: 0.75rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.9);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 0.75rem;
}
.footer__links { list-style: none; margin: 0; padding: 0; }
.footer__links li { margin-bottom: 0.4rem; }
.footer__links a {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9375rem;
  transition: color var(--transition-fast);
}
.footer__links a:hover { color: var(--white); }
.footer__bottom {
  padding-top: 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  text-align: center;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
}
@media (max-width: 768px) {
  .footer__grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 480px) {
  .footer__grid { grid-template-columns: 1fr; }
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ========== SCROLL TO TOP BUTTON ========== */
.scroll-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  background: linear-gradient(135deg, var(--primary-600), var(--primary-700));
  color: var(--white);
  border: none;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-fast);
  z-index: 9998;
  box-shadow: 0 4px 15px rgba(37, 99, 235, 0.3);
}

.scroll-to-top:hover {
  background: linear-gradient(135deg, var(--primary-700), var(--primary-800));
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.4);
}

.scroll-to-top.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .scroll-to-top {
    bottom: 20px;
    right: 20px;
    width: 45px;
    height: 45px;
    font-size: 1.1rem;
  }
}