/* ==========================================================================
   Development Page — システム開発支援 (/development/)
   Built on the Walkers design system (global.css / components.css).
   ========================================================================== */

/* ---------- Hero ---------- */
.dev-hero {
  margin-top: 80px;
  padding: 80px 0;
  background: linear-gradient(180deg, #ffffff 0%, var(--color-bg-lighter) 100%);
  overflow: hidden;
}

.dev-hero__inner {
  display: flex;
  align-items: center;
  gap: 56px;
}

.dev-hero__content {
  flex: 1 1 52%;
}

.dev-hero__lead {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.dev-hero__title {
  font-size: 56px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 32px;
}

.dev-hero__body p {
  font-size: 1rem;
  line-height: 2;
  color: var(--color-text-gray);
  margin-bottom: 16px;
}

.dev-hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 40px;
}

.dev-hero__visual {
  flex: 1 1 48%;
}

.dev-hero__visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-hero-img) 0 var(--radius-hero-img) 0;
  object-fit: cover;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
}

/* ---------- Strengths ---------- */
.dev-strengths__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.dev-strength-card {
  background-color: var(--color-bg-white);
  border-radius: var(--radius-card);
  padding: 40px 32px;
  text-align: center;
  box-shadow: 0 2px 12px 2px rgba(160, 160, 160, 0.18);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.dev-strength-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.dev-strength-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  object-fit: contain;
}

.dev-strength-card__label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-gray);
}

.dev-strength-card__num {
  font-family: var(--font-en);
  font-size: 44px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-secondary);
  margin: 4px 0 20px;
}

.dev-strength-card__num span {
  font-family: var(--font-ja);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-left: 4px;
}

.dev-strength-card__desc {
  font-size: 0.875rem;
  line-height: 1.9;
  color: var(--color-text-gray);
  text-align: left;
}

/* ---------- Reasons ---------- */
.dev-reasons__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.dev-reason {
  position: relative;
  background-color: var(--color-bg-lighter);
  border-radius: var(--radius-card);
  padding: 36px 28px 28px;
  overflow: hidden;
}

.dev-reason__no {
  font-family: var(--font-en);
  font-size: 56px;
  font-weight: 800;
  line-height: 1;
  color: rgba(1, 112, 185, 0.12);
  position: absolute;
  top: 16px;
  right: 20px;
}

.dev-reason__title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
  padding-left: 16px;
  border-left: 4px solid var(--color-secondary);
}

.dev-reason__desc {
  font-size: 0.875rem;
  line-height: 1.9;
  color: var(--color-text-gray);
}

/* ---------- Cases ---------- */
.dev-cases__note {
  font-size: 0.8125rem;
  color: var(--color-text-gray);
  margin-bottom: 24px;
}

.dev-cases__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.dev-cases .works-card__img img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.dev-cases__actions {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

/* ---------- FAQ ---------- */
.dev-faq__list {
  max-width: 880px;
  margin: 0 auto;
}

.dev-faq__item {
  background-color: var(--color-bg-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-input);
  margin-bottom: 16px;
  overflow: hidden;
}

.dev-faq__q {
  position: relative;
  list-style: none;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  padding: 20px 56px 20px 56px;
  transition: color var(--transition-base);
}

.dev-faq__q::-webkit-details-marker {
  display: none;
}

.dev-faq__q::before {
  content: "Q";
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-en);
  font-weight: 800;
  color: var(--color-primary);
}

.dev-faq__q::after {
  content: "";
  position: absolute;
  right: 24px;
  top: 50%;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--color-text-gray);
  border-bottom: 2px solid var(--color-text-gray);
  transform: translateY(-70%) rotate(45deg);
  transition: transform var(--transition-base);
}

.dev-faq__item[open] .dev-faq__q::after {
  transform: translateY(-30%) rotate(-135deg);
}

.dev-faq__item[open] .dev-faq__q {
  color: var(--color-primary);
}

.dev-faq__a {
  position: relative;
  padding: 0 24px 24px 56px;
  font-size: 0.9375rem;
  line-height: 1.9;
  color: var(--color-text-gray);
}

.dev-faq__a::before {
  content: "A";
  position: absolute;
  left: 20px;
  top: 0;
  font-family: var(--font-en);
  font-weight: 800;
  color: var(--color-secondary);
}

/* ---------- YouTube ---------- */
.dev-youtube__desc {
  font-size: 0.9375rem;
  color: var(--color-text-gray);
  margin-bottom: 40px;
}

.dev-youtube__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* ---------- Contact (3 CTA) ---------- */
.dev-contact__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.dev-contact-card {
  display: flex;
  flex-direction: column;
  background-color: var(--color-footer-bg);
  color: #fff;
  border-radius: var(--radius-card);
  padding: 40px 32px;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  transition: transform var(--transition-base);
}

.dev-contact-card:hover {
  transform: translateY(-4px);
  color: #fff;
}

.dev-contact-card__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}

.dev-contact-card__desc {
  font-size: 0.875rem;
  line-height: 1.8;
  opacity: 0.85;
  margin-bottom: 28px;
  flex: 1;
}

.dev-contact-card__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-secondary);
  font-weight: 700;
  font-size: 0.9375rem;
}

.dev-contact-card__btn .btn__arrow {
  transition: transform var(--transition-base);
}

.dev-contact-card:hover .dev-contact-card__btn .btn__arrow {
  transform: translateX(4px);
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 921px) {
  .dev-hero {
    padding: 56px 0;
  }

  .dev-hero__inner {
    flex-direction: column;
    gap: 40px;
  }

  .dev-hero__title {
    font-size: 40px;
  }

  .dev-strengths__grid,
  .dev-reasons__grid,
  .dev-cases__grid,
  .dev-youtube__grid,
  .dev-contact__grid {
    grid-template-columns: 1fr;
  }

  .dev-hero__cta {
    justify-content: center;
  }
}

@media (max-width: 600px) {
  .dev-hero__title {
    font-size: 32px;
  }

  .dev-hero__cta .ctabtn,
  .dev-hero__cta .ctabtn2 {
    width: 100%;
  }

  .dev-faq__q {
    font-size: 0.9375rem;
    padding: 16px 48px;
  }
}