@import url("https://fonts.googleapis.com/css2?family=Montserrat:ital,wght@0,100..900;1,100..900&display=swap");

@import url("./reset.css");

:root {
  --color-primary: #1e3f75;
  --color-secondary: #4278a1;
  --color-text: #333;
  --color-light: #fff;
  --color-gray: #f8f8f8;
  --color-accent: crimson;

  --font-xs: 0.875rem; 
  --font-sm: 1rem; 
  --font-md: 1.25rem; 
  --font-lg: 1.875rem; 
  --font-xl: 4.375rem; 

  --space-xs: 0.625rem; 
  --space-sm: 1.25rem; 
  --space-md: 1.875rem; 
  --space-lg: 3.125rem; 
  --space-xl: 6.25rem; 

  --breakpoint-tablet: 770px;
  --breakpoint-mobile: 390px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Montserrat", sans-serif;
  font-size: var(--font-sm);
  color: var(--color-text);
  line-height: 1.5;
}

.inner {
  margin: 0 auto;
  max-width: 1300px;
  width: 90%;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 10000;
  width: 100%;
  transition: background-color 0.3s ease;

  nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 0 auto;
    max-width: 1300px;
    height: 70px;
    padding: 0 var(--space-sm);

    .logo {
      position: relative;
      z-index: 1000;

      img {
        width: 120px;
        height: 60px;
        display: block;
      }
    }

    .menu-group {
      display: flex;
      align-items: center;
      gap: var(--space-md);
      margin-left: auto;
    }

    .gnb {
      display: flex;
      gap: var(--space-sm);
      li {
        a {
          display: block;
          padding: 0.5rem var(--space-xs);
          color: var(--color-light);
          font-weight: 500;
          transition: color 0.3s ease;

          &:hover {
            color: rgba(255, 255, 255, 0.8);
          }
        }
      }
    }

    .trigger {
      display: none;
    }
  }

  &.active {
    background: var(--color-primary);

    .gnb li a {
      color: var(--color-light);

      &:hover {
        color: var(--color-gray);
      }
    }
  }
}

.intro {
  padding-top: 70px; 
  min-height: 100vh;
  display: flex;
  align-items: center;
  width: 100%;
  background: url("./img/home.jpg") center/cover no-repeat;
  background-attachment: fixed; 
}

.about_content {
  display: flex;
  padding: 150px 0;
  div {
    padding: 30px;
    &.desc {
      flex: 3;
      text-align: center;
      h1 {
        font-size: 30px;
        color: #1e3f75;
      }
      p {
        margin: 30px 0 40px;
        font-size: 16px;
        line-height: 1.7rem;
      }
      a {
        font-weight: bold;
        color: #1e3f75;
        &:hover {
          text-decoration: underline;
        }
      }
    }
    &.photo {
      flex: 2;
      img {
        width: 100%;
        border-radius: 20px;
      }
    }
  }
}

.youtube {
  background: #f8f8f8;
  .youtube_content {
    padding: 100px 0;
  }
}

.member {
  padding: 100px 0;
  .member_content {
    h2 {
      margin-bottom: 40px;
      padding-left: 65px;
      font-size: 30px;
      font-weight: 600;
      color: #4278a1;
    }
  }
}

.album {
  background: #f8f8f8;
  padding: 100px 0;
  .album_content {
    .post_content {
      display: flex;
      width: 100%;
      .recent_post_items {
        display: flex;
        flex-direction: column;
        width: 100%;
      }
    }
  }
}

footer {
  padding: 40px 0;
  background: #000;
  color: #fff;
  .footer_content {
    display: flex;
    gap: 30px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    ul {
      display: flex;
      gap: 20px;
      align-items: center;
      justify-content: center;
      li {
        display: flex;
        margin-bottom: 5px;
        a {
          font-size: 16px;
          color: #959595;
          &:hover {
            text-decoration: underline;
          }
          span {
            margin-left: 8px;
          }
        }
      }
    }
  }
}

.gototop {
  display: inline-block;
  position: fixed;
  right: 20px;
  bottom: -20px;
  width: 50px;
  height: 50px;
  background: #4278a1;
  font-size: 26px;
  line-height: 50px;
  color: #fff;
  text-align: center;
  transition: all 0.3s;
  border-radius: 50%;
  opacity: 0;
  &.active {
    bottom: 20px;
    opacity: 1;
  }
}

.language-selector {
  position: relative;
  margin-left: 20px;
}

.language-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 1px solid #ddd;
  border-radius: 4px;
  padding: 6px 12px;
  color: #666;
  cursor: pointer;
  transition: all 0.3s ease;
}

.language-toggle:hover {
  background-color: #f5f5f5;
}

.language-toggle .current-lang {
  font-size: 14px;
  font-weight: 500;
}

.language-dropdown {
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 4px;
  background: white;
  border: 1px solid #ddd;
  border-radius: 4px;
  padding: 4px;
  min-width: 120px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.language-selector.active .language-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.language-dropdown li {
  margin: 0;
  padding: 0;
}

.language-dropdown button {
  display: block;
  width: 100%;
  padding: 8px 12px;
  text-align: left;
  background: none;
  border: none;
  color: #666;
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.language-dropdown button:hover {
  background-color: #f5f5f5;
}

.language-dropdown button.active {
  color: var(--color-primary);
  font-weight: 500;
}

header.active .language-toggle {
  border-color: rgba(255, 255, 255, 0.2);
  color: white;
}

header.active .language-toggle:hover {
  background-color: rgba(255, 255, 255, 0.1);
}