/* RESET de base */
.header2, .all-button, .profil-block {
  box-sizing: border-box;
}

.header2 {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 60px;
  background: #fff;
  
  position: sticky;
  top: 0;
  z-index: 99;
  padding: 0 28px;
}

/* Logo & Burger */
.logo {
  height: 38px;
  display: block;
}

.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  margin-right: 16px;
  cursor: pointer;
}
.burger span {
  display: block;
  width: 27px;
  height: 3px;
  background: #ff6600;
  border-radius: 2px;
  transition: 0.25s;
}

/* Nav */
.all-button {
  display: flex;
  align-items: center;
  gap: 18px;
  flex: 1 1 auto;
  justify-content: center;
  min-width: 0;
}

.header-btn {
  font-family: 'Montserrat', Arial, sans-serif;
  font-weight: 600;
  font-size: 1.08rem;
  color: #474747;
  background: none;
  border: none;
  padding: 10px 19px;
  border-radius: 7px;
  margin: 0;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, color 0.15s, box-shadow 0.2s;
  display: inline-block;
  white-space: nowrap;
}

.header-btn:hover,
.header-btn.active {
  background: #faf7f3;
  color: #ff6600;
  box-shadow: 0 1px 4px 0 rgba(255, 102, 0, 0.09);
}

/* Dropdown - Desktop Only */
.dropdown {
  position: relative;
  display: inline-block;
}

.buy-button {
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
}
.arrow {
  font-size: 0.8em;
  transition: transform 0.2s;
}
.dropdown.open .arrow {
  transform: rotate(180deg);
}
.dropdown-content {
  display: none;
  position: absolute;
  left: 0;
  top: 112%;
  min-width: 170px;
  background: #fff;
  box-shadow: 0 8px 32px 0 rgba(31,31,35,0.10);
  border-radius: 10px;
  z-index: 12;
  padding: 7px 0;
  animation: fadeIn 0.17s;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px);}
  to { opacity: 1; transform: translateY(0);}
}
.dropdown.open .dropdown-content {
  display: block;
}
.dropdown-option {
  padding: 13px 20px 13px 24px;
  display: block;
  font-weight: 600;
  color: #ff6600;
  background: none;
  border: none;
  font-size: 1.03rem;
  text-align: left;
  border-radius: 6px;
  transition: background 0.12s, color 0.12s;
  cursor: pointer;
  text-decoration: none;
}
.dropdown-option:hover {
  background: #ff6600;
  color: #fff;
}

/* Profil */
.profil-block {
  margin-left: 16px;
}

/* Responsive : MOBILE (<900px) */
@media (max-width: 900px) {
  .header2 {
    flex-wrap: wrap;
    justify-content: flex-start;
    padding: 0 12px;
    min-height: 52px;
  }
  .logo {
    margin: 0 auto;
    height: 30px;
  }
  .burger {
    display: flex;
  }
  .profil-block {
    margin-left: auto;
    margin-right: 0;
  }
  /* Nav menu mobile */
  .all-button {
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 0;
    background: #fff;
    width: 100%;
    box-shadow: none;
    padding: 18px 0 0 0;
    position: absolute;
    left: 0;
    top: 55px;
    z-index: 21;
    border-radius: 0 0 15px 15px;
    border-top: 1.5px solid #ececec;
    display: none; /* sera activé par JS burger */
  }
  .all-button.menu-open {
    display: flex;
  }
  .header-btn,
  .all-button > a {
    display: block;
    width: 100%;
    text-align: left;
    padding: 14px 0 14px 24px;
    margin: 0;
    font-size: 1.13rem;
    border-radius: 0;
    background: none;
    color: #454545;
    font-weight: 600;
    box-shadow: none;
    border-bottom: 1px solid #f5f5f5;
    transition: background 0.13s, color 0.13s;
  }
  .header-btn:hover,
  .all-button > a:hover {
    background: #fff3e6;
    color: #ff6600;
  }
  /* Plus de dropdown sur mobile */
  .dropdown, .dropdown-content {
    display: none !important;
  }
  /* Montrer les 3 liens Buy/Rent/Commercial sur mobile */
  .mobile-buy-menu {
    display: flex !important;
    flex-direction: column;
    width: 100%;
    padding: 0;
    margin: 0 0 0 0;
    gap: 0;
  }
  .mobile-buy-menu a {
    color: #454545;
    font-weight: 600;
    background: none;
    border: none;
    padding: 14px 0 14px 24px;
    text-align: left;
    width: 100%;
    font-size: 1.13rem;
    margin: 0;
    border-radius: 0;
    text-decoration: none;
    border-bottom: 1px solid #f5f5f5;
    box-sizing: border-box;
    transition: color 0.15s, background 0.15s;
  }
  .mobile-buy-menu a:hover {
    color: #ff6600;
    background: #fff3e6;
  }
  /* One-line for chat property AI */
  .chat-button {
    white-space: nowrap;  
    max-width: 97vw;
  }
}

/* Désactive le menu mobile sur desktop */
@media (min-width: 901px) {
  .mobile-buy-menu {
    display: none !important;
  }
}