body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(99,102,241,.25), transparent 60%),
    radial-gradient(900px 500px at -10% 100%, rgba(56,189,248,.20), transparent 60%),
    var(--bg);
}

.site-header {
  background-color: #224b7d;
  color: white;
  padding: 10px 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: 16px;
  box-shadow: 0 20px 40px rgba(2,6,23,.25);
}

.header-container { display: contents; }
.nav-menu { width: 85%; }

.nav-menu > ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
}

.nav-menu li {
  position: relative;
  padding-left: 20px;
}

.nav-menu a {
  text-decoration: none;
  color: white;
  font-weight: 500;
}

/* 드롭다운 */
.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #ffffff;
  min-width: 180px;
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  z-index: 999;
  flex-direction: column;
  padding: 6px 0;
  overflow: hidden;
}

.dropdown.open .dropdown-content {
  display: flex;
}

.dropdown-content li a {
  padding: 12px 18px;
  display: block;
  color: #334155;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: background 0.25s ease, padding-left 0.25s ease, color 0.25s ease;
  border-radius: 6px;
}
.dropdown-content li a:hover,
.dropdown-content li a:focus {
  background-color: #dbeafe;
  color: #1e3a8a;
  padding-left: 22px;
}
.dropdown > a i { margin-left: 6px; font-size: 0.9em; color: #fff; transition: transform 0.2s ease; }
.dropdown:hover > a i { color: #dbeafe; }
.dropdown.open > a i { transform: rotate(180deg); }

/* Manage 버튼 */
.manage-btn { margin-left: auto; }
.manage-btn a {
  text-decoration: none;
  padding: 6px 12px;
  background: white;
  color: #ef4444 !important;
  border-radius: 8px;
  font-weight: 500;
}
.manage-btn a:hover { background: #3b82f6; color: white !important; }

/* 사용자 정보 */
.user-info {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 10px;
}
.user-info a {
  text-decoration: none;
  padding: 6px 12px;
  background: white;
  color: #3b82f6;
  border-radius: 8px;
  font-weight: 500;
}
.user-info a:hover { background: #3b82f6; color: white; }
.user-info span { font-weight: 500; }

/* 로그아웃 버튼 (헤더용) */
.logout-btn {
  display: inline-block;
  padding: 10px 24px;
  background: #ef4444;
  color: white;
  border-radius: 12px;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 6px 12px rgba(0,0,0,0.2);
  transition: all 0.3s ease;
}
.logout-btn:hover { background: #b91c1c; transform: translateY(-2px); }

/* 모바일 (<=600px) */
@media (max-width: 600px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
    padding: 10px;
    border-radius: 0;
    gap: 6px;
  }
  .nav-menu { width: 100%; display: none; }
  .nav-menu.active { display: block; }
  .nav-menu ul { flex-direction: column; width: 100%; gap: 4px; }
  .nav-menu li { width: 100%; padding: 0; }
  .nav-menu a { display: block; width: 94%; padding: 10px 12px; border-radius: 6px; }

  .user-info {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 6px;
  }
  .user-info span { flex: 1; font-size: 14px; }
  .user-info a,
  .logout-btn {
    flex: 1;
    text-align: center;
    padding: 10px;
    font-size: 14px;
    border-radius: 8px;
  }
}

@media (hover: hover) and (pointer: fine) {
  .dropdown:hover .dropdown-content {
    display: flex;
  }
}