@import url("https://fonts.googleapis.com/css2?family=Chakra+Petch:ital,wght@0,300;0,400;0,500;0,600;0,700;1,300;1,400;1,500;1,600;1,700&family=LXGW+WenKai+TC:wght@400;700&display=swap");

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "LXGW WenKai TC", "Chakra Petch", cursive, sans-serif;
  font-weight: 400;
  font-style: normal;
  margin: 0;
  padding: 0;
  background-image: linear-gradient(
      to bottom,
      rgba(0, 0, 0, 0.5),
      rgba(255, 255, 255, 0.15)
    ),
    url(/assets/bg-unsplash.jpg);
  background-size: cover;
  /* 讓圖片覆蓋整個畫面 */
  background-position: center;
  /* 置中顯示 */
  background-repeat: no-repeat;
  /* 不重複 */
  background-attachment: fixed;
  /* 讓背景圖片固定 */
  overflow-x: hidden;
}

section {
  margin-top: 2.5rem;
  padding: 1rem;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 30px auto 0px auto;
  padding: 20px;
  background: rgba(255, 255, 255, 0);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 68vh;
  width: auto;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 20px 100px;
  background: rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(10px);
  border-bottom: 2px solid rgba(255, 255, 255, 0.2);
  z-index: 100;
}

.header::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.4),
    transparent
  );
  transition: 0.5s;
}

.header:hover::before {
  left: 100%;
}

.logo {
  cursor: default;
}
.logo img {
  max-width: 3.5rem;
  max-height: 4.5rem;
}

.thumbnail {
  max-width: 12rem;
  max-height: 12rem;
  border-radius: 28%;
}

.navbar a {
  color: #fff;
  font-size: 18px;
  text-decoration: none;
  margin-left: 35px;
  transition: 0.3s;
}

.navbar a:hover {
  color: rgb(122, 154, 223);
}

#menu-icon {
  font-size: 36px;
  color: #fff;
  display: none;
}

main {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.card {
  text-align: center;
  padding: 2rem 2.5rem;
  border-radius: 3em;
  background-clip: padding-box;
  border: solid 2px transparent;
  background: rgba(255, 255, 255, 0.3);
  box-shadow: 0 25px 50px rgba(0, 0, 0, 0.1);
  border: 2.5px solid rgba(255, 255, 255, 0.5);
  border-right: 2.5px solid rgba(255, 255, 255, 0.2);
  border-bottom: 2.5px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(10px);
  min-width: 80vw;
  min-height: 60vh;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  font-size: 1.2rem;
  color: #f5efe8;
  line-height: 2;
}
h1,
h2,
h3,
h4,
h5,
h6,
p {
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.75);
  margin: 0 auto;
  max-width: 100%;
  overflow-wrap: break-word;
}
b {
  font-size: 1.25rem;
}
h1 {
  font-size: 3.5rem;
}
h2 {
  font-size: 2.5rem;
}
h3 {
  font-size: 1.75rem;
  padding-bottom: 0.3rem;
}
.text-box {
  text-align: left;
}
.img-box {
  width: 100%;
}
.img-box img {
  width: 100%;
}
hr {
  margin: 1.5rem;
  border: 1px solid whitesmoke;
  width: 70%;
}
.interactive-button a {
  text-decoration: none; /* 移除底線 */
}

.interactive-button a:visited {
  text-decoration: none; /* 移除底線 */
  color: inherit;
}

.interactive-button {
  margin: 4px auto;
  padding: 0px;
  font-family: inherit;
  font-size: 1.2em;
  border: 0.2rem outset rgb(255, 241, 244);
  border-radius: 5px;
  background-color: #d6dcec;
  color: #333;
  cursor: pointer;
  transition: background-color 0.3s ease;
  width: 10.1rem;
  display: inline-block;
  text-align: center;
}

.interactive-button:hover {
  background-color: #c1cae4;
}

.interactive-button:active {
  border: 0.2rem inset rgb(255, 241, 244);
  background-color: #a3afd3;
}
.button-a {
  padding: 15px 4px;
  display: block;
  width: 100%;
  height: 100%;
}

/* BREAKPOINTS */
@media (max-width: 992px) {
  .header {
    padding: 1.25rem 4%;
  }
}

@media (max-width: 768px) {
  #menu-icon {
    display: block;
  }

  .navbar {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    padding: 0.5rem 4%;
    display: none;
  }

  .navbar.active {
    display: block;
  }

  .navbar a {
    display: block;
    margin: 1.5rem 0;
  }

  .nav-bg {
    position: fixed;
    top: 79px;
    left: 0;
    width: 100%;
    height: 220px;
    background: rgba(255, 255, 255, 0.1);
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    z-index: 99;
    display: none;
  }

  .nav-bg.active {
    display: inline-block;
  }
  .interactive-button {
    padding: 10px 20px;
    font-size: 1em;
  }
  .card {
    font-size: 1rem;
    min-width: 85vw;
    min-height: 70vh;
    line-height: 1.5;
  }
  .logo img {
    max-width: 2.5rem;
    max-height: 3.5rem;
  }
  b {
    font-size: 1.2rem;
  }
  h1 {
    font-size: 3rem;
  }
  h2 {
    font-size: 2rem;
  }
  h3 {
    font-size: 1.5rem;
    padding-bottom: 0.25rem;
  }
}