@import url("https://fonts.googleapis.com/css2?family=Poppins:wght@100;300;500;700&display=swap");

/* Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: linear-gradient(rgb(27, 22, 62), rgb(0, 4, 16));
}

section {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 80px 5%;
  color: #fff;
}

/* Common layout */
.container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 100%;
}

.main-title { font-size: 4rem; margin-bottom: 50px; }
.section-title { font-size: 3em; margin-bottom: 80px; }

.content {
  width: 100%;
  max-width: 1150px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.image {
  position: relative;
  width: 50%;
  max-width: 600px;
  aspect-ratio: 3 / 2;
  overflow: hidden;
  flex-shrink: 1;
}

.image img {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 10px;
  z-index: 10;
}

/* Section 01 */
.sec-01 .content .text-box {
  z-index: 20;
  background: rgba(255, 255, 255, 0.05); /* 背景を少し透明にして透けるように0完全に透明 0.1かなり透明 */
  backdrop-filter: blur(20px);
  padding: 40px;
  width: 50%;
  max-width: 550px; /* ← テキスト領域を広げるため400pxから550pxへ拡張 */
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  transform: translate(-40px, 20px); /* ← 左の画像の中央寄りに見えるよう、少しだけ上に寄せる */
  flex-shrink: 0;
}

.sec-01 .content .text-box h3 {
  font-size: 2em;
  margin-bottom: 10px;
}

.sec-01 .media-icons {
  margin-top: 100px;
}

.sec-01 .media-icons a {
  color: #fff;
  font-size: 2em;
  margin: 60px;
}

.sec-01 .media-icons a i {
  display: inline-block;
}

/* Section 02 */
.sec-02 .content + .content {
  margin-top: 80px;
}

.sec-02 .content,
.sec-03 .content {
  gap: 40px;
}

.sec-02 .info {
  width: 50%;
  max-width: 700px;
  margin-left: 50px;
}

.sec-02 .info-title {
  font-size: 1.8em;
  margin-bottom: 10px;
}

.sec-02-reverse .info {
  margin-left: 0;
  margin-right: 50px;
}

/* Section 03 */
.sec-03 .content {
  justify-content: space-between;
  align-items: flex-start;
}

.sec-03 .media-info {
  flex: 0 0 40%;
  width: 40%;
  max-width: 400px;
  margin: 0 auto;
}

.sec-03 .media-info li {
  list-style: none;
  font-size: 1.4em;
  position: relative;
}

.sec-03 .media-info li a {
  text-decoration: none;
  color: #fff;
}

.sec-03 .media-info li:not(:last-child) {
  margin-bottom: 50px;
}

/* Zigzag layout */
.sec-03 .media-info li:nth-child(1),
.sec-03 .media-info li:nth-child(3),
.sec-03 .media-info li:nth-child(5) {
  left: 20%;
  /*　この数字を小さくすると左寄りに、大きくすると右寄りに配置される */
}

.sec-03 .media-info li:nth-child(2),
.sec-03 .media-info li:nth-child(4),
.sec-03 .media-info li:nth-child(6) {
  left: 50%;
  /*　この数字を小さくすると左寄りに、大きくすると右寄りに配置される */
}

.sec-03 .contact-info {
  width: 55%;
  max-width: 560px;
  padding: 40px;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
}

.sec-03 .contact-info h4 {
  font-size: 2em;
  margin-bottom: 10px;
}

.sec-03 .contact-info h4:not(:first-child) {
  margin-top: 24px;
}

.sec-03 .contact-info p {
  margin-bottom: 16px;
  text-align: center;
}

.sec-03 .contact-info a {
  color: #fff;
  text-decoration: none;
  transition: color 0.8s ease;
}

.sec-03 .contact-info a:hover {
  color: #b9dcff;
}

.sec-03 {
  margin-bottom: 100px;
}


/* Scroll reveal */
.reveal {
  opacity: 0;
  transition: transform 2000ms ease, opacity 2000ms ease;
  transition-delay: var(--delay, 0ms);
}

/* Initial states */
.reveal-left   { transform: translateX(-60px); }
.reveal-top    { transform: translateY(-60px); }
.reveal-bottom { transform: translateY(60px); }
.reveal-right  { transform: translateX(60px); }
.sec-01 .content .text-box.reveal-right {
  transform: translate(0px, 20px);
}

.sec-03 .contact-info.reveal-right {
  transform: translate(60px, 0);
}

/* Active state */
.reveal.active {
  opacity: 1;
  transform: translate(0, 0);
}

/* Active position */
.sec-01 .content .text-box.reveal.active {
  transform: translate(-40px, 20px);
}

.sec-03 .contact-info.reveal.active {
  transform: translate(0, 0);
}


/* Responsive */
@media (max-width: 768px) {
  section {
    padding: 60px 20px;
  }

  .main-title {
    font-size: 2.5rem;
    text-align: center;
  }

  .section-title {
    font-size: 2rem;
    margin-bottom: 40px;
  }

  /* Common mobile layout */
  .content {
    width: 100%;
    flex-direction: column;
  }

  .content .image {
    width: 100%;
    max-width: 600px;
    height: 300px;
    aspect-ratio: auto;
  }

  /* Section 01 */
  .sec-01 .content .text-box {
    width: 100%;
    max-width: 90%;
    transform: translate(0, -30px);
    margin-top: 0;
  }

  .sec-01 .content .text-box.reveal.active {
    transform: translate(0, -30px);
  }

  /* Section 02 */
  .sec-02 .info,
  .sec-02-reverse .info {
    width: 100%;
    margin: 20px 0 0 0;
  }

  /* Reverse order on mobile */
  .sec-02-reverse {
    flex-direction: column-reverse;
  }

  /* Section 03 */
  .sec-03 .content {
    flex-direction: column;
  }

  .sec-03 .media-info {
    width: 100%;
    margin-left: 0;
    margin-top: 0;
  }

  .sec-03 .contact-info {
    width: 100%;
    margin-top: 30px;
  }

  .sec-03 .media-info li:nth-child(1),
  .sec-03 .media-info li:nth-child(2),
  .sec-03 .media-info li:nth-child(3),
  .sec-03 .media-info li:nth-child(4),
  .sec-03 .media-info li:nth-child(5),
  .sec-03 .media-info li:nth-child(6) {
    left: 0;
  }

  .sec-03 .media-info li {
    text-align: center;
  }

  /* Social icons */
  .sec-01 .media-icons {
    margin-top: 40px;
    display: flex;
    justify-content: center;
    gap: 20px;
  }

  .sec-01 .media-icons a {
    margin: 0;
  }
}