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

body {
  background:
    radial-gradient(circle at top,
    #101530 0%,
    #050510 70%);

  color: white;
  font-family: "Noto Serif JP", serif;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== hero ===== */

.hero {
  min-height: 100vh;

  display: flex;
  align-items: center;
  justify-content: center;

  text-align: center;
  position: relative;
}

.hero::before {
  content: "";

  position: absolute;
  inset: 0;

  background:
    radial-gradient(circle at center,
    rgba(108,99,255,0.12),
    transparent 60%);

  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;

  max-width: 760px;
}

.hero-sub {
  font-size: 14px;
  letter-spacing: 0.3em;
  opacity: 0.5;
  margin-bottom: 28px;
}

.hero h1 {
  font-size: clamp(52px, 10vw, 110px);
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.1;
}

.hero-copy {
  margin-top: 32px;

  font-size: clamp(18px, 2vw, 28px);
  line-height: 2;

  color: rgba(255,255,255,0.88);
}

.hero-text {
  margin-top: 28px;

  color: rgba(255,255,255,0.55);

  line-height: 2.2;
  font-size: 15px;
}

.hero-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;

  margin-top: 48px;

  width: 220px;
  height: 58px;

  border-radius: 999px;

  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);

  backdrop-filter: blur(12px);

  transition: 0.4s;
}

.hero-button:hover {
  transform: translateY(-4px);

  background: rgba(255,255,255,0.09);

  box-shadow:
    0 10px 30px rgba(0,0,0,0.4),
    0 0 40px rgba(108,99,255,0.12);
}

/* ===== section ===== */

.section {
  padding: 140px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 80px;
}

.section-title p {
  opacity: 0.5;
  margin-bottom: 16px;
  letter-spacing: 0.2em;
  font-size: 14px;
}

.section-title h2 {
  font-size: clamp(34px, 4vw, 56px);
  font-weight: 700;
}

/* ===== cards ===== */

.works-grid {
  display: grid;

  grid-template-columns:
    repeat(auto-fit, minmax(320px, 1fr));

  justify-content: center;

  gap: 40px;
}

.work-card {
  background: rgba(255,255,255,0.03);

  border: 1px solid rgba(255,255,255,0.05);

  backdrop-filter: blur(10px);

  border-radius: 24px;

  padding: 28px;

  transition:
    transform 0.5s,
    box-shadow 0.5s,
    opacity 0.8s;

  opacity: 0;
  transform: translateY(30px);

  max-width: 520px;
  margin: 0 auto;
  width: 100%;
}

.work-card.show {
  opacity: 1;
  transform: translateY(0);
}

.work-card:hover {
  transform: translateY(-8px);

  box-shadow:
    0 20px 40px rgba(0,0,0,0.4),
    0 0 50px rgba(108,99,255,0.08);
}

.work-card h3 {
  font-size: 30px;
  margin-bottom: 20px;
}

.work-card p {
  color: rgba(255,255,255,0.7);
  line-height: 2;
  font-size: 15px;
}

.work-video {
  margin-top: 28px;
}

.work-video iframe {
  width: 100%;
  aspect-ratio: 16 / 9;

  border: none;
  border-radius: 16px;

  display: block;
}

.work-link {
  display: inline-block;
  margin-top: 20px;

  color: rgba(180,190,255,0.85);

  transition: 0.3s;
}

.work-link:hover {
  opacity: 0.7;
}

.work-meta {
  display: flex;

  gap: 12px;

  margin-bottom: 18px;

  font-size: 12px;

  color: rgba(255,255,255,0.45);

  letter-spacing: 0.08em;
}

/* ===== about ===== */

.about {
  text-align: center;
  max-width: 760px;
  margin: 0 auto;
}

.about p {
  color: rgba(255,255,255,0.65);
  line-height: 2.4;
  font-size: 16px;
}

/* ===== footer ===== */

footer {
  padding: 80px 20px;

  text-align: center;

  color: rgba(255,255,255,0.35);
  font-size: 14px;
}

@media (max-width: 768px) {
  .hero {
    min-height: auto;
    padding: 140px 0 120px;
  }

  .section {
    padding: 100px 0;
  }

  .hero-copy {
    line-height: 1.8;
  }
}

.tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tag {
  padding: 4px 10px;

  border-radius: 999px;

  background: rgba(255,255,255,0.06);

  border: 1px solid rgba(255,255,255,0.05);

  font-size: 11px;

  color: rgba(255,255,255,0.7);
}