/* ========== レイアウト ========== */
.single-event-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 3rem;
  padding: 0 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.single-event-left {
  flex: 1 1 60%;
}

.single-event-right {
  flex: 1 1 35%;
  background-color: var(--color-accent, #f4fbfd);
  padding: 1.5rem;
  border-radius: 8px;
}

/* ========== サムネイル ========== */
.event-thumbnail {
  margin-bottom: 1.5rem;
}

.event-thumbnail img {
  width: 100%;
  height: auto;
  border-radius: 8px;
}

/* ========== タイトル ========== */
.event-title {
  font-size: 2rem;
  font-weight: bold;
  margin-bottom: 1rem;
  color: var(--color-text, #1C2739);
}

/* ========== 本文 ========== */
.event-content {
  font-size: 1rem;
  line-height: 1.8;
}

.event-content p {
  margin-bottom: 1.2rem;
}

/* ========== 見出し（h2, h3） ========== */
.event-content h2,
.event-content h3 {
  position: relative;
  margin-top: 2rem;
  margin-bottom: 1rem;
  font-weight: bold;
}

.event-content h2 {
  font-size: 1.5rem;
  color: var(--color-primary);
  padding-left: 1rem;
  border-left: 6px solid var(--color-primary);
  background: linear-gradient(to right, var(--color-accent), transparent);
}

.event-content h2::after {
  content: "";
  display: block;
  margin-top: 0.5rem;
  height: 2px;
  background: repeating-linear-gradient(
    to right,
    var(--color-primary),
    var(--color-primary) 4px,
    transparent 4px,
    transparent 8px
  );
}

.event-content h3 {
  font-size: 1.2rem;
  color: var(--color-primary-hover);
  padding-left: 0.75rem;
  border-left: 4px dotted var(--color-primary-hover);
}

.event-content h3::before {
  content: "●";
  color: var(--color-primary-hover);
  position: absolute;
  left: 0;
  top: 0;
  font-size: 0.6rem;
  transform: translateX(-0.75rem);
}

/* ========== 詳細情報 ========== */
.event-detail {
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.event-detail dt {
  font-weight: bold;
  margin-bottom: 0.3rem;
  color: var(--color-text);
}

.event-detail dd {
  margin: 0 0 1rem;
}

/* ========== フォーム ========== */
.event-form-box {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid #ccc;
}

/* ========== スマホ対応 ========== */
@media (max-width: 768px) {
  .single-event-wrapper {
    flex-direction: column;
  }

  .single-event-left,
  .single-event-right {
    flex: 1 1 100%;
  }
}