/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--green-dark);
  color: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,.12);
}
.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  gap: 12px;
}
.header-logo img {
  height: 40px;
  width: auto;
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
.header-actions .btn {
  padding: 7px 18px;
  font-size: 14px;
}
.btn-join { background: var(--yellow); color: var(--black); }
.btn-join:hover { background: #e6e600; }
.btn-login { background: transparent; color: #fff; border: 1px solid #fff; }
.btn-login:hover { background: rgba(255,255,255,.15); }
.search-btn {
  background: transparent;
  border: none;
  color: #fff;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
}

/* Main navigation */
.main-nav {
  background: var(--green);
}
.main-nav ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  list-style: none;
}
.main-nav li a {
  display: block;
  padding: 12px 16px;
  color: #fff;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: .3px;
  white-space: nowrap;
  transition: background .2s;
}
.main-nav li a:hover { background: var(--green-dark); }

/* Burger menu */
.burger-btn {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.burger-btn img { width: 26px; height: 26px; }

/* Mobile drawer menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0,0,0,.5);
  z-index: 2000;
}
.mobile-menu.open { display: block; }
.mobile-menu-panel {
  position: absolute;
  top: 0;
  left: 0;
  width: 82%;
  max-width: 320px;
  height: 100%;
  background: #fff;
  overflow-y: auto;
  padding: 16px;
}
.mobile-menu-panel a.mobile-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 4px;
  font-family: var(--font-head);
  font-weight: 600;
  color: var(--dark);
  border-bottom: 1px solid var(--light-grey);
}
.mobile-menu-panel a.mobile-item img { width: 22px; height: 22px; }
.mobile-menu-close {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 10px;
}
.mobile-menu-close img { width: 24px; height: 24px; cursor: pointer; }

body.menu-open { overflow: hidden; }

@media (max-width: 900px) {
  .main-nav { display: none; }
  .burger-btn { display: block; }
  .btn-login { display: none; }
}