/* ---------------- Base ---------------- */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Helvetica Neue', 'Noto Sans JP', sans-serif;
  background-color: #fff;
  color: #111;
  letter-spacing: 0.02em;
  line-height: 1.7;
}


/* ---------------- Header ---------------- */
header {
  position: fixed;
  top: 32px;
  left: 40px;
  z-index: 100;
}

.logo img {
  width: 140px;
  height: auto;
  display: block;
}

/* ---------------- Hero ---------------- */
.hero {
  text-align: center;
  padding: 200px 20px 100px;
}

.hero h1 {
  font-size: clamp(48px, 6vw, 80px);
  font-weight: 800;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero p {
  color: #666;
  font-size: 18px;
  font-weight: 300;
}

/* ---------------- Gallery ---------------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 40px;
  padding: 0 60px 120px;
  max-width: 1400px;
  margin: 0 auto;
}

.card {
  position: relative;
  overflow: hidden;
  border-radius: 18px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
  transition: transform 0.5s ease, box-shadow 0.5s ease;
}

.card video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
  filter: grayscale(100%);
  transition: filter 0.8s ease, transform 0.8s ease;
}

.card:hover video {
  filter: grayscale(0%);
  transform: scale(1.06);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 26px rgba(0, 0, 0, 0.12);
}

.card img {
  width: 100%;
  height: 100%;
  display: block;
  filter: grayscale(100%);
  transition: filter 0.8s ease, transform 0.8s ease;
}

.card:hover img {
  filter: grayscale(0%);
  transform: scale(1.06);
}

.caption {
  position: absolute;
  left: 20px;
  bottom: 20px;
  color: white;
  font-size: 18px;
  font-weight: 500;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.5s ease;
  text-shadow: 0 0 8px rgba(0, 0, 0, 0.6);
}

.card:hover .caption {
  opacity: 1;
  transform: translateY(0);
}

/* ホバーまたはフォーカス時にキャプションを表示 */
.card:hover .caption,
.card:focus-within .caption {
  opacity: 1;
  transform: translateY(0);
}
/* ==== タッチ端末向け（ホバー代替） ==== */
@media (hover: none) {
  .video:active .caption {
    opacity: 1;
    transform: translateY(0);
  }
}


/* ---------------- Footer ---------------- */
footer {
  text-align: center;
  padding: 80px 0 50px;
  background: #000;
  color: #fff;
}

footer .contact-info {
  margin-bottom: 36px;
}

footer .contact-info p {
  margin: 6px 0;
  font-weight: 300;
}

.copyright {
  font-size: 14px;
  color: #aaa;
  letter-spacing: 0.05em;
}

/* ---------------- Responsive ---------------- */
@media (max-width: 768px) {
  header {
    top: 20px;
    left: 20px;
  }

  .hero {
    padding: 140px 20px 80px;
  }

  .gallery {
    gap: 24px;
    padding: 0 20px 100px;
  }
}