/* ============================================================
   Development Service Page
   ============================================================ */

/* ---- Shared helpers ---- */
.section-en {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--color-text-muted, #6b7280);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.section-title {
  font-size: clamp(1.375rem, 3vw, 1.875rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 1rem;
}

/* ---- Hero ---- */
.dev-hero {
  padding: 5rem 0 4.5rem;
  background: var(--color-bg-dark, #111);
  color: #fff;
  overflow: hidden;
}
.dev-hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}
.dev-hero__label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  background: rgba(255,255,255,0.15);
  padding: 0.3em 0.875em;
  border-radius: 99px;
  margin-bottom: 1.25rem;
}
.dev-hero__title {
  font-size: clamp(1.875rem, 4vw, 3rem);
  font-weight: 900;
  line-height: 1.15;
  margin-bottom: 1.25rem;
}
.dev-hero__lead {
  font-size: clamp(0.9375rem, 2vw, 1.0625rem);
  color: rgba(255,255,255,0.75);
  line-height: 1.8;
  margin-bottom: 2.25rem;
}
.dev-hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.dev-hero__img {
  border-radius: 1rem;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}
.dev-hero__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 700;
  padding: 0.75em 1.875em;
  border-radius: 0.5rem;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.2s;
}
.btn:hover { opacity: 0.85; transform: translateY(-1px); }
.btn--primary {
  background: #fff;
  color: #111;
}
.btn--ghost {
  border: 2px solid rgba(255,255,255,0.5);
  color: #fff;
}

/* ---- Features ---- */
.dev-features {
  padding: 5rem 0;
}
.dev-features__head {
  text-align: center;
  margin-bottom: 3rem;
}
.dev-features__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.dev-feature-card {
  background: var(--color-white, #fff);
  border: 1px solid var(--color-border, #e5e7eb);
  border-radius: 1rem;
  padding: 2rem;
  transition: box-shadow 0.2s, transform 0.2s;
}
.dev-feature-card:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}
.dev-feature-card__icon {
  width: 52px;
  height: 52px;
  background: var(--color-bg-dark, #111);
  color: #fff;
  border-radius: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}
.dev-feature-card h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 0.625rem;
}
.dev-feature-card p {
  font-size: 0.875rem;
  color: var(--color-text-muted, #6b7280);
  line-height: 1.75;
}

/* ---- AI Section ---- */
.dev-ai {
  padding: 5rem 0;
  background: var(--color-bg-dark, #111);
  color: #fff;
}
.dev-ai__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.dev-ai__img {
  border-radius: 1rem;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}
.dev-ai__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.dev-ai__text .section-en {
  color: rgba(255,255,255,0.5);
}
.dev-ai__text .section-title {
  color: #fff;
}
.dev-ai__text p {
  color: rgba(255,255,255,0.75);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}
.dev-ai__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}
.dev-ai__list li {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.9);
}
.dev-ai__list li svg {
  flex-shrink: 0;
  color: #fff;
}

/* ---- Tech Stack ---- */
.dev-stack {
  padding: 5rem 0;
  background: var(--color-bg-light, #f9fafb);
}
.dev-stack__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.dev-stack__text p {
  color: var(--color-text-muted, #6b7280);
  line-height: 1.8;
  margin-bottom: 1.5rem;
}
.dev-stack__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.dev-stack__tags span {
  font-size: 0.8125rem;
  font-weight: 600;
  background: var(--color-bg-dark, #111);
  color: #fff;
  padding: 0.3em 0.875em;
  border-radius: 0.375rem;
}
.dev-stack__img {
  border-radius: 1rem;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}
.dev-stack__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ---- Works ---- */
.dev-works {
  padding: 5rem 0;
}
.dev-works__head {
  text-align: center;
  margin-bottom: 3rem;
}
.dev-works__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}
.dev-work-item {
  background: var(--color-white, #fff);
  border: 1px solid var(--color-border, #e5e7eb);
  border-radius: 1rem;
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.2s;
}
.dev-work-item:hover {
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}
.dev-work-item__img {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.dev-work-item__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.dev-work-item:hover .dev-work-item__img img {
  transform: scale(1.04);
}
.dev-work-item__body {
  padding: 1.25rem 1.5rem 1.5rem;
}
.dev-work-item__tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  background: var(--color-bg-dark, #111);
  color: #fff;
  padding: 0.25em 0.75em;
  border-radius: 0.375rem;
  margin-bottom: 0.75rem;
}
.dev-work-item__body h3 {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1.45;
}
.dev-work-item__body p {
  font-size: 0.875rem;
  color: var(--color-text-muted, #6b7280);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.dev-work-item__tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  list-style: none;
  padding: 0;
  margin: 0;
}
.dev-work-item__tech li {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-text-muted, #6b7280);
  background: var(--color-bg-light, #f3f4f6);
  padding: 0.2em 0.625em;
  border-radius: 0.25rem;
}

/* ---- Flow ---- */
.dev-flow {
  padding: 5rem 0;
  background: var(--color-bg-light, #f9fafb);
}
.dev-flow__head {
  text-align: center;
  margin-bottom: 3rem;
}
.dev-flow__steps {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  counter-reset: step;
}
.dev-flow__step {
  background: var(--color-white, #fff);
  border: 1px solid var(--color-border, #e5e7eb);
  border-radius: 1rem;
  padding: 2rem 1.5rem;
  position: relative;
}
.dev-flow__num {
  display: block;
  font-size: 2.25rem;
  font-weight: 900;
  color: var(--color-border, #e5e7eb);
  line-height: 1;
  margin-bottom: 1rem;
  font-variant-numeric: tabular-nums;
}
.dev-flow__step h3 {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}
.dev-flow__step p {
  font-size: 0.875rem;
  color: var(--color-text-muted, #6b7280);
  line-height: 1.75;
}

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .dev-hero__inner,
  .dev-ai__inner,
  .dev-features__grid,
  .dev-stack__inner,
  .dev-works__grid,
  .dev-flow__steps {
    grid-template-columns: 1fr;
  }
  .dev-hero__img {
    order: -1;
  }
  .dev-flow__steps {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 600px) {
  .dev-flow__steps {
    grid-template-columns: 1fr;
  }
}