:root {
  --color-blue: #337dc3;
  --color-green: #a4cbb4;
  --color-purple: #b39ddb;
  --color-gray: #e0e0e0;
  --color-text: #333333;
}

body {
  margin: 0;
  font-family: 'Noto Sans KR', sans-serif;
  padding-top: 4em;
  overflow-x: hidden;
}

.main-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: white;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  padding: 1em;
  box-sizing: border-box;
}

.main-header .header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 100%;
}

.main-header .logo a {
  font-size: 1.5em;
  color: var(--color-blue);
  font-weight: bold;
  text-decoration: none;
}

.main-header .menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.8em;
  cursor: pointer;
  color: var(--color-text);
}

.main-header .nav-menu {
  display: flex;
  gap: 2em;
}

.main-header .nav-menu a {
  text-decoration: none;
  color: var(--color-text);
  font-weight: bold;
  transition: color 0.3s ease;
  word-break: break-word;
  overflow-wrap: break-word;
  max-width: 100%;
}

.main-header .nav-menu a:hover {
  color: var(--color-purple);
}

/* 모바일 반응형 */
@media (max-width: 768px) {
  .main-header .menu-toggle {
    display: block;
  }

  .main-header .nav-menu {
    display: none;
    flex-wrap: wrap;
    justify-content: space-between;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: white;
    padding: 1em;
    gap: 0.8em;
    box-sizing: border-box;
    box-shadow: 0 0.3em 0.6em rgba(0, 0, 0, 0.1);
  }

  .main-header .nav-menu.show {
    display: flex;
  }

  .main-header .nav-menu a {
    flex: 0 0 calc(50% - 0.4em); /* 한 줄에 2개 */
    padding: 0.8em;
    text-align: center;
    background: #f9f9f9;
    border-radius: 0.4em;
    box-sizing: border-box;
  }

  .main-header .nav-menu a:hover {
    background: var(--color-blue);
    color: white;
  }
}

/* PC 패딩 */
@media (min-width: 768px) {
  .main-header {
    padding-left: 2em;
    padding-right: 2em;
  }

  .main-header .logo a {
    padding-left: 2em;
  }
}