/* ============================================
   VERTEX DIGITAL - NAVIGATION STYLES
   Barre de navigation fixe avec menu burger responsive
   ============================================ */

/* Compensation pour la navigation fixe */
body {
  padding-top: 60px;
}

@media (max-width: 960px) {
  body {
    padding-top: 64px;
  }
}

@media (max-width: 640px) {
  body {
    padding-top: 56px;
  }
}

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(4, 8, 20, 0.92);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 12px 24px;
  display: flex;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
  flex-wrap: nowrap;
  position: relative;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-weight: 600;
  font-size: 1.1rem;
  text-decoration: none;
  padding: 4px 0;
}

.nav-logo img {
  height: 36px;
  width: auto;
  display: block;
}

.nav-inner nav {
  display: flex;
  gap: 18px;
  font-weight: 500;
  letter-spacing: 0.01em;
  flex-wrap: wrap;
  justify-content: center;
}

.nav-inner nav a {
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.nav-inner nav a:hover,
.nav-inner nav a:focus-visible {
  color: rgba(255, 255, 255, 0.9);
}

.nav-inner nav a.active {
  color: #fff;
}

.nav-cta,
.nav-cta:visited {
  padding: 10px 18px;
  border-radius: 999px;
  background: linear-gradient(120deg, #6e8bff, #8ca8ff);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 12px 28px rgba(110, 139, 255, 0.35);
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 32px rgba(110, 139, 255, 0.45);
}

/* Menu burger */
.nav-burger {
  display: none;
  border: none;
  padding: 10px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 48px;
  height: 48px;
  transition: all 0.2s ease;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.nav-burger:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.2);
}

.nav-burger span,
.nav-burger span::before,
.nav-burger span::after {
  content: '';
  display: block;
  width: 22px;
  height: 2px;
  background: #fff;
  border-radius: 999px;
  position: absolute;
  transition: transform 0.25s ease;
}

.nav-burger span::before {
  transform: translateY(-6px);
}

.nav-burger span::after {
  transform: translateY(6px);
}

/* Menu dropdown mobile */
.nav-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: rgba(4, 8, 20, 0.98);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
  max-height: 0;
  opacity: 0;
  pointer-events: none;
  transition: max-height 0.3s ease, opacity 0.3s ease;
  z-index: 9;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.nav-dropdown.is-open {
  max-height: 200px;
  opacity: 1;
  pointer-events: auto;
}

.nav-dropdown__links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  padding: 12px 16px;
  gap: 4px 16px;
}

.nav-dropdown__links a {
  padding: 8px 4px;
  color: rgba(255, 255, 255, 0.75);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}

.nav-dropdown__links a::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: #6e8bff;
  transition: width 0.2s ease, left 0.2s ease;
}

.nav-dropdown__links a:hover,
.nav-dropdown__links a:focus {
  color: #fff;
}

.nav-dropdown__links a:hover::after,
.nav-dropdown__links a:focus::after {
  width: 100%;
  left: 0;
}

.nav-dropdown__links a.active {
  color: #fff;
}

.nav-dropdown__links a.active::after {
  width: 100%;
  left: 0;
}

.nav-dropdown__cta {
  display: block;
  margin: 0 16px 12px;
  padding: 10px 20px;
  border-radius: 999px;
  background: linear-gradient(120deg, #6e8bff, #8ca8ff);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  text-align: center;
  box-shadow: 0 4px 12px rgba(110, 139, 255, 0.3);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.nav-dropdown__cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(110, 139, 255, 0.4);
}

/* Responsive */
@media (max-width: 960px) {
  .nav-inner {
    padding: 14px 20px;
  }

  .nav-inner nav,
  .nav-cta {
    display: none;
  }

  .nav-burger {
    display: flex;
  }

  .nav-dropdown {
    display: flex;
  }

  .nav-logo {
    font-size: 1.05rem;
  }

  .nav-logo img {
    height: 32px;
  }
}

@media (max-width: 640px) {
  .nav-inner {
    padding: 10px 16px;
  }

  .nav-logo {
    font-size: 0.95rem;
    gap: 8px;
  }

  .nav-logo img {
    height: 28px;
  }

  .nav-burger {
    width: 42px;
    height: 42px;
    padding: 8px;
  }

  .nav-burger span,
  .nav-burger span::before,
  .nav-burger span::after {
    width: 20px;
  }

  .nav-dropdown__links {
    padding: 10px 12px;
    gap: 2px 12px;
  }

  .nav-dropdown__links a {
    font-size: 0.85rem;
    padding: 6px 2px;
  }

  .nav-dropdown__cta {
    margin: 0 12px 10px;
    padding: 8px 16px;
    font-size: 0.85rem;
  }
}