/* ============================================================
   Work Sub Navigation
   ============================================================ */
.work-subnav {
  background-color: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: var(--header-height);
  z-index: 100;
}

.work-subnav__list {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px;
  display: flex;
  gap: 0;
}

.work-subnav__list a {
  display: block;
  padding: 16px 24px;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-text-muted);
  border-bottom: 3px solid transparent;
  transition: color var(--transition), border-color var(--transition);
  white-space: nowrap;
}

.work-subnav__list a:hover,
.work-subnav__list a.is-active {
  color: var(--color-main);
  border-bottom-color: var(--color-accent);
}

@media (max-width: 768px) {
  .work-subnav__list {
    padding: 0 16px;
    overflow-x: auto;
  }

  .work-subnav__list a {
    padding: 14px 16px;
    font-size: 0.8125rem;
  }
}

/* ============================================================
   Work Hero
   ============================================================ */
.work-hero {
  background-color: var(--color-bg);
  padding: 80px 0;
}

.work-hero__inner {
  display: grid;
  grid-template-columns: 1fr 400px;
  gap: 60px;
  align-items: center;
}

.work-hero__title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  color: var(--color-main);
  line-height: 1.5;
  margin-bottom: 28px;
}

.work-hero__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.work-hero__list li {
  font-size: 0.9375rem;
  color: var(--color-text);
  padding-left: 20px;
  position: relative;
  line-height: 1.7;
}

.work-hero__list li::before {
  content: '・';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.work-hero__photo {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

/* 写真入稿前のプレースホルダー表示（透明・領域のみ確保）
   写真が届いたら: .work-hero__photo--placeholder クラスを削除し
   <img src="images/work-hero.jpg" alt="働く環境" class="work-hero__photo-img"> を追加 */
.work-hero__photo--placeholder {
  background: transparent;
}

/* 写真が入った時のスタイル */
.work-hero__photo-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@media (max-width: 768px) {
  .work-hero__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .work-hero__photo {
    order: -1;
  }

  /* 写真未入稿時はスマホで非表示（空白が生まれないように） */
  .work-hero__photo--placeholder {
    display: none;
  }
}

/* ============================================================
   Evaluation Overview (役職と役割)
   ============================================================ */
.work-eval__lead {
  font-size: 0.9375rem;
  line-height: 1.9;
  margin-bottom: 48px;
}

.work-eval__boxes {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}

.eval-box {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 24px 16px;
  box-shadow: var(--shadow);
  text-align: center;
  border-top: 4px solid var(--color-accent);
}

.eval-box__title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 8px;
}

.eval-box__desc {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .work-eval__boxes {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .work-eval__boxes {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Grade Section
   ============================================================ */
.work-grade {
  background-color: var(--color-bg);
}

.work-grade__lead {
  font-size: 0.9375rem;
  line-height: 1.8;
  margin-bottom: 32px;
}

.work-grade__subtitle {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 20px;
  padding-left: 12px;
  border-left: 4px solid var(--color-accent);
}

/* Grade cards — horizontal with color gradient D(high)→J(entry) */
.grade-cards {
  display: flex;
  align-items: stretch;
  margin-bottom: 48px;
  gap: 0;
}

.grade-card {
  flex: 1;
  border-radius: var(--radius);
  padding: 20px 12px;
  box-shadow: var(--shadow);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.grade-card__badge {
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.grade-card__name {
  font-size: 1.0625rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.grade-card__desc {
  font-size: 0.7rem;
  line-height: 1.5;
}

/* Arrow between grade cards */
.grade-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 28px;
  color: var(--color-text-muted);
  font-size: 1rem;
  padding: 0 2px;
  opacity: 0.6;
}

/* D — highest rank: dark navy */
.grade-card--d {
  background-color: #1E3A5F;
}
.grade-card--d .grade-card__badge  { color: rgba(255,255,255,0.6); }
.grade-card--d .grade-card__name   { color: #ffffff; }
.grade-card--d .grade-card__desc   { color: rgba(255,255,255,0.75); }

/* M — director level: medium navy */
.grade-card--m {
  background-color: #2E5382;
}
.grade-card--m .grade-card__name   { color: #ffffff; }
.grade-card--m .grade-card__desc   { color: rgba(255,255,255,0.75); }

/* S — senior/specialist: teal */
.grade-card--s {
  background-color: #29B7C2;
}
.grade-card--s .grade-card__name   { color: #ffffff; }
.grade-card--s .grade-card__desc   { color: rgba(255,255,255,0.85); }

/* B — business standard: light teal */
.grade-card--b {
  background-color: #A8DADE;
}
.grade-card--b .grade-card__name   { color: #1E3A5F; }
.grade-card--b .grade-card__desc   { color: #2A5A60; }

/* J — entry level: very light, accent border */
.grade-card--j {
  background-color: #E6F4F7;
  border: 2px solid var(--color-accent);
}
.grade-card--j .grade-card__badge  { color: var(--color-accent); }
.grade-card--j .grade-card__name   { color: var(--color-main); }
.grade-card--j .grade-card__desc   { color: var(--color-text-muted); }

@media (max-width: 960px) {
  .grade-cards {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .grade-arrow {
    width: auto;
    height: 24px;
    transform: rotate(-90deg);
  }
}

/* ============================================================
   Position Structure (役職構成) — 2 tracks side by side
   ============================================================ */
.position-tracks {
  display: flex;
  flex-direction: row;
  gap: 20px;
  margin-bottom: 48px;
  align-items: stretch;
}

.position-track {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}

.position-track--management {
  flex: 3;
}

.position-track--expert {
  flex: 1;
  min-width: 180px;
}

.position-track__header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background-color: var(--color-main);
  flex-shrink: 0;
}

.position-track--expert .position-track__header {
  background-color: var(--color-accent);
}

.position-track__label {
  font-size: 0.875rem;
  font-weight: 700;
  color: #fff;
}

.position-track__note {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.7);
}

/* Management flow — 3-column grid (2 rows × 3) */
.position-flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--color-white);
  flex: 1;
}

.position-role {
  padding: 16px 12px;
  text-align: center;
  border-right: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.position-role:nth-child(3n) {
  border-right: none;
}

.position-role:nth-last-child(-n+3) {
  border-bottom: none;
}

.position-role__title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 6px;
}

.position-role__desc {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* Expert track */
.position-expert {
  background: var(--color-white);
  padding: 24px 20px;
  flex: 1;
  display: flex;
  align-items: center;
}

.position-expert__desc {
  font-size: 0.875rem;
  color: var(--color-text);
  line-height: 1.8;
}

@media (max-width: 768px) {
  .position-tracks {
    flex-direction: column;
  }
  .position-flow {
    grid-template-columns: repeat(2, 1fr);
  }
  .position-role:nth-child(3n) {
    border-right: 1px solid var(--color-border);
  }
  .position-role:nth-child(2n) {
    border-right: none;
  }
  .position-role:nth-last-child(-n+3) {
    border-bottom: 1px solid var(--color-border);
  }
  .position-role:nth-last-child(-n+2) {
    border-bottom: none;
  }
}

/* ============================================================
   Salary (賃金制度)
   ============================================================ */
.salary-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

.salary-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  box-shadow: var(--shadow);
  text-align: center;
}

.salary-card__name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 10px;
}

.salary-card__desc {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

@media (max-width: 480px) {
  .salary-cards {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Benefits (手当・福利厚生)
   ============================================================ */
.work-benefits {
  background-color: var(--color-bg);
}

.work-benefits__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 40px;
}

.benefits-box {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow);
}

.benefits-box__title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--color-accent-light);
}

.benefits-box__list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 20px;
}

.benefits-box__list li {
  font-size: 0.875rem;
  color: var(--color-text);
  line-height: 1.7;
  padding-left: 1em;
  text-indent: -1em;
}

.benefits-box__note {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-top: 12px;
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.benefit-item {
  background-color: var(--color-bg);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
}

.benefit-item__name {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--color-main);
  margin-bottom: 6px;
}

.benefit-item__desc {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

@media (max-width: 768px) {
  .work-benefits__grid {
    grid-template-columns: 1fr;
  }

  .benefits-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}