/* ===== SPONSOR.CSS — 協賛企業ページ ===== */

/* --- Philosophy --- */
.sponsor-philosophy p {
  font-size: 0.95rem; color: var(--text); font-weight: 300;
  line-height: 2; margin-bottom: 20px; max-width: 760px;
}
.sponsor-philosophy p:last-child { margin-bottom: 0; }

/* --- Benefits --- */
.benefit-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.benefit-card {
  background: var(--bg); border: 1px solid var(--border);
  border-top: 3px solid var(--blue); padding: 32px 28px;
}
.benefit-card-num {
  font-size: 2.2rem; font-weight: 200; color: var(--blue);
  opacity: 0.2; line-height: 1; margin-bottom: 16px;
  font-variant-numeric: tabular-nums; letter-spacing: -0.04em;
}
.benefit-card h3 {
  font-size: 0.98rem; font-weight: 600; color: var(--charcoal);
  margin-bottom: 12px; line-height: 1.5;
}
.benefit-card p {
  font-size: 0.85rem; color: var(--text-muted); font-weight: 300; line-height: 1.8;
}

/* --- Category --- */
.category-lead {
  font-size: 0.9rem; color: var(--text-muted); font-weight: 300;
  line-height: 1.8; margin-bottom: 32px; max-width: 760px;
}
.category-list { max-width: 820px; }
.category-item { padding: 24px 0; border-bottom: 1px solid var(--border); }
.category-item:first-child { padding-top: 0; }
.category-item:last-child { border-bottom: none; padding-bottom: 0; }
.category-item h3 {
  font-size: 0.95rem; font-weight: 600; color: var(--charcoal); margin-bottom: 8px;
}
.category-item p {
  font-size: 0.87rem; color: var(--text-muted); font-weight: 300; line-height: 1.8;
}

/* --- Sponsors --- */
.sponsor-lead {
  font-size: 0.9rem; color: var(--text-muted); font-weight: 300;
  line-height: 1.8; margin-bottom: 48px; max-width: 680px;
}

.sponsor-page-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

/* ----------------------------------------
   Responsive
---------------------------------------- */
@media (max-width: 768px) {
  .sponsor-philosophy-section { padding: 60px 0; }
  .benefit-section { padding: 60px 0; }
  .benefit-grid { grid-template-columns: 1fr; }
  .category-section { padding: 60px 0; }
  .sponsor-section { padding: 60px 0; }
  .sponsor-page-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .sponsor-philosophy-section { padding: 48px 0; }
  .benefit-section { padding: 48px 0; }
  .category-section { padding: 48px 0; }
  .sponsor-section { padding: 48px 0; }
}