/* =========================
   HEADER
========================= */
.site-header{
  position: fixed;
  top: 32px;
  left: 0;
  right: 0;
  z-index: 9999;

  background: #4EC234;
  padding: 22px 0;

  transition: background .25s ease, backdrop-filter .25s ease, box-shadow .25s ease;
}

.site-header.is-scrolled{
  background: rgba(78, 194, 52, 0.22);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 10px 25px rgba(0,0,0,.12);
}

.header-inner{
  display: flex;
  align-items: center;
  gap: 24px;
  position: relative;
}

.brand{
  display: flex;
  align-items: center;
  text-decoration: none;
  flex: 0 0 auto;
}

.brand-text{
  font-weight: 800;
  font-size: 28px;
  color: #fff;
}

.brand-logos{ display: inline-block; }

.brand-logo{
  height: 54px;
  width: auto;
}

.brand-logo--normal{ display: block; }
.brand-logo--scrolled{ display: none; }
.site-header.is-scrolled .brand-logo--normal{ display: none; }
.site-header.is-scrolled .brand-logo--scrolled{ display: block; }

.main-nav{
  background: #006832;
  border-radius: 999px;
  padding: 16px 28px;
  box-shadow: 0 12px 26px rgba(0,0,0,.18);

  flex: 1 1 auto;
  min-width: 70%;
  max-width: 750px;
  margin-left: auto;
}

.main-nav .nav-list{
  list-style: none;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 32px;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.main-nav a{
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 15px;
  opacity: .95;
  transition: opacity .2s ease;
}

.main-nav a:hover{ opacity: 1; }

.nav-toggle{
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  border: none;
  background: #006832;
  border-radius: 12px;
  box-shadow: 0 12px 26px rgba(0,0,0,.18);
  cursor: pointer;

  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle-line{
  display: block;
  width: 20px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
}

@media (max-width: 900px){
  .site-header{
    top: 0;
    padding: 16px 0;
  }

  .brand-logo{ height: 46px; }

  .nav-toggle{ display: flex; }

  .main-nav{
    min-width: 0;
    max-width: none;
    margin-left: 0;
    padding: 14px 16px;
    border-radius: 18px;

    position: absolute;
    left: 16px;
    right: 16px;
    top: calc(100% + 10px);

    display: none;
  }

  .main-nav.is-open{ display: block; }

  .main-nav .nav-list{
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 10px;
    padding: 6px 0;
  }

  .main-nav a{
    display: block;
    padding: 10px 12px;
    border-radius: 12px;
    text-align: center;
  }
}