/* ============================================================
   CAREERS POSITIONS — 募集ポジション
   背景: ライト（off-white #F7F8FA）
   3職種カード（PM候補/エンジニア/未経験）+ 詳細展開
   ============================================================ */

/* ---- Section Base ---- */
.careers-positions {
  position: relative;
  z-index: var(--z-content, 10);
  background-color: var(--c-bg-section, #F7F8FA);
  padding: 100px 0 120px;
}

/* ---- Container ---- */
.careers-positions__container {
  max-width: var(--s-container, 1200px);
  margin: 0 auto;
  padding: 0 var(--s-gutter, 32px);
}

/* ============================================================
   Header
   ============================================================ */
.careers-positions__eyebrow {
  display: inline-block;
  font-family: var(--f-label, 'Inter', sans-serif);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 12px;
}

.careers-positions__title {
  font-family: var(--f-heading-ja, 'Noto Serif JP', serif);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--c-navy, #1E3A5F);
  line-height: 1.4;
  margin-bottom: 16px;
}

.careers-positions__subtitle {
  font-family: var(--f-body, 'Noto Sans JP', sans-serif);
  font-size: 1rem;
  color: var(--c-text-light, #555);
  line-height: 1.8;
  max-width: 640px;
  margin-bottom: 48px;
}

/* ============================================================
   Cards Grid
   ============================================================ */
.careers-positions__cards {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* ---- Individual Card ---- */
.careers-positions__card {
  background: var(--c-bg, #FFFFFF);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.06);
  transition: box-shadow var(--t-base, 0.4s) var(--ease-out);
}

.careers-positions__card:hover {
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.1);
}

/* ---- Card Header ---- */
.careers-positions__card-header {
  padding: 32px 36px 24px;
  border-bottom: 1px solid var(--c-border-light, #F0F0F0);
  position: relative;
}

/* Left accent bar */
.careers-positions__card-header::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 5px;
}

.careers-positions__card-header--pm::before {
  background: linear-gradient(to bottom, var(--c-gold), var(--c-orange, #E8672A));
}

.careers-positions__card-header--eng::before {
  background: linear-gradient(to bottom, var(--c-navy, #1E3A5F), var(--c-accent, #4A90D9));
}

.careers-positions__card-header--junior::before {
  background: linear-gradient(to bottom, var(--c-orange, #E8672A), var(--c-gold));
}

.careers-positions__card-label {
  display: inline-block;
  font-family: var(--f-label, 'Inter', sans-serif);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--c-text-muted, #999);
  margin-bottom: 8px;
}

.careers-positions__card-title {
  font-family: var(--f-body, 'Noto Sans JP', sans-serif);
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  font-weight: 700;
  color: var(--c-text, #1A1A1A);
  line-height: 1.4;
  margin-bottom: 12px;
}

.careers-positions__card-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--c-orange, #E8672A);
  background: rgba(232, 103, 42, 0.08);
  border: 1px solid rgba(232, 103, 42, 0.2);
  border-radius: 4px;
  padding: 2px 8px;
  margin-left: 8px;
  vertical-align: middle;
}

/* Salary */
.careers-positions__card-salary {
  margin-top: 4px;
}

.careers-positions__salary-amount {
  font-family: var(--f-label, 'Inter', sans-serif);
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 800;
  color: var(--c-navy, #1E3A5F);
  line-height: 1.2;
}

.careers-positions__salary-unit {
  font-family: var(--f-body, 'Noto Sans JP', sans-serif);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--c-text-light, #555);
}

/* ---- Card Body ---- */
.careers-positions__card-body {
  padding: 24px 36px 32px;
}

.careers-positions__card-summary p {
  font-family: var(--f-body, 'Noto Sans JP', sans-serif);
  font-size: 0.95rem;
  color: var(--c-text-light, #555);
  line-height: 1.7;
  margin-bottom: 20px;
}

/* ---- Toggle Button ---- */
.careers-positions__toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 1px solid var(--c-border, #E5E5E5);
  border-radius: 8px;
  padding: 10px 20px;
  font-family: var(--f-body, 'Noto Sans JP', sans-serif);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--c-navy, #1E3A5F);
  cursor: pointer;
  transition: all 0.3s var(--ease-out);
}

.careers-positions__toggle:hover {
  background: var(--c-navy, #1E3A5F);
  color: #fff;
  border-color: var(--c-navy, #1E3A5F);
}

.careers-positions__toggle-icon {
  font-size: 0.7rem;
  transition: transform 0.3s var(--ease-out);
}

.careers-positions__toggle[aria-expanded="true"] .careers-positions__toggle-icon {
  transform: rotate(180deg);
}

.careers-positions__toggle[aria-expanded="true"] .careers-positions__toggle-text::after {
  content: none;
}

/* ---- Detail Panel ---- */
.careers-positions__detail {
  padding-top: 24px;
  margin-top: 24px;
  border-top: 1px solid var(--c-border-light, #F0F0F0);
}

.careers-positions__detail[hidden] {
  display: none;
}

/* Detail Grid */
.careers-positions__detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 28px;
}

.careers-positions__detail-item {
  padding: 20px;
  background: var(--c-bg-section, #F7F8FA);
  border-radius: 12px;
}

.careers-positions__detail-label {
  font-family: var(--f-body, 'Noto Sans JP', sans-serif);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--c-navy, #1E3A5F);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.careers-positions__detail-label i {
  color: var(--c-gold);
  font-size: 0.85rem;
}

.careers-positions__detail-item p {
  font-family: var(--f-body, 'Noto Sans JP', sans-serif);
  font-size: 0.85rem;
  color: var(--c-text-light, #555);
  line-height: 1.7;
}

/* Detail Conditions */
.careers-positions__detail-conditions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.careers-positions__condition {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--f-body, 'Noto Sans JP', sans-serif);
  font-size: 0.8rem;
  color: var(--c-text-light, #555);
  background: var(--c-bg-section, #F7F8FA);
  padding: 8px 16px;
  border-radius: 8px;
}

.careers-positions__condition i {
  color: var(--c-navy, #1E3A5F);
  font-size: 0.75rem;
}

/* --- Stagger Delays (rv base定義はbase.cssに集約済み) --- */
.careers-positions .d1 { transition-delay: 0.12s; }
.careers-positions .d2 { transition-delay: 0.24s; }
.careers-positions .d3 { transition-delay: 0.36s; }

/* ============================================================
   Responsive — Tablet (768px)
   ============================================================ */
@media (max-width: 768px) {
  .careers-positions {
    padding: 72px 0 80px;
  }

  .careers-positions__subtitle {
    margin-bottom: 36px;
  }

  .careers-positions__cards {
    gap: 24px;
  }

  .careers-positions__card-header {
    padding: 24px 24px 20px;
  }

  .careers-positions__card-body {
    padding: 20px 24px 24px;
  }

  .careers-positions__detail-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .careers-positions__detail-conditions {
    flex-direction: column;
  }

  .careers-positions__salary-amount {
    font-size: 1.5rem;
  }
}

/* ============================================================
   Responsive — Small Mobile (480px)
   ============================================================ */
@media (max-width: 480px) {
  .careers-positions {
    padding: 56px 0 64px;
  }

  .careers-positions__card-header {
    padding: 20px 20px 16px;
  }

  .careers-positions__card-body {
    padding: 16px 20px 20px;
  }

  .careers-positions__detail-item {
    padding: 16px;
  }
}