/* styles.css */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue",
    Arial, "Hiragino Kaku Gothic ProN", "Meiryo", sans-serif;
  background: #0f1115;
  color: #f5f5f5;
}

/* 1. ヒーロー */
.hero {
  min-height: 100vh;
  padding: 80px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at top left, #2b3a4f 0, #0f1115 55%);
}

.hero-inner {
  max-width: 720px;
  width: 100%;
}

.hero-title {
  font-size: 40px;
  line-height: 1.2;
  margin: 0 0 24px;
  letter-spacing: 0.04em;
}

.hero-text {
  font-size: 16px;
  line-height: 1.8;
  margin: 0 0 32px;
  color: #d0d4dc;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, transform 0.1s ease;
}

.btn-primary {
  background: #f5c451;
  color: #1b1d22;
}

.btn-primary:hover {
  background: #ffd56e;
  transform: translateY(-1px);
}

.btn-secondary {
  border: 1px solid #f5c451;
  color: #f5c451;
  background: transparent;
}

.btn-secondary:hover {
  background: rgba(245, 196, 81, 0.1);
  transform: translateY(-1px);
}

/* 2. 私たちについて */
.about {
  padding: 80px 24px;
  background: #0f1115;
}

.about-inner {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 48px;
  align-items: center;
}

.about-kicker {
  display: inline-block;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #f5c451;
  margin-bottom: 12px;
}

.about-title {
  font-size: 28px;
  margin: 0 0 16px;
}

.about-body {
  margin: 0;
  font-size: 15px;
  line-height: 1.9;
  color: #d0d4dc;
}

.about-image-wrap {
  position: relative;
}

.about-image {
  width: 100%;
  display: block;
  border-radius: 16px;
  object-fit: cover;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.45);
}

/* 3. FAQ */
.faq {
  padding: 80px 24px 100px;
  background: #0b0d11;
}

.faq-inner {
  max-width: 800px;
  margin: 0 auto;
}

.faq-title {
  font-size: 28px;
  margin: 0 0 32px;
}

.faq-item + .faq-item {
  margin-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 24px;
}

.faq-question {
  font-size: 18px;
  margin: 0 0 8px;
}

.faq-answer {
  margin: 0;
  font-size: 14px;
  line-height: 1.9;
  color: #d0d4dc;
}

/* スマホ向け */
@media (max-width: 768px) {
  .hero {
    padding: 56px 20px;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-text {
    font-size: 14px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }

  .about {
    padding: 56px 20px;
  }

  .about-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .about-title {
    font-size: 22px;
  }

  .about-body {
    font-size: 14px;
  }

  .faq {
    padding: 56px 20px 72px;
  }

  .faq-title {
    font-size: 22px;
  }
}