main {
    color: #e2e8f0;
    background-color: #ffffff;
    line-height: 1.8;
}

/* ゴールドグラデ */
:root {
    --gold-gradient: linear-gradient(135deg, #f6d365 0%, #fda085 50%,#f6d365 100%);
    --gold-text: linear-gradient(90deg, #b89742 0%, #f7e5a9 50%, #b89742 100%);
    --gold-solid: #d4af37;
}

a {
    color: inherit;
    text-decoration: none;
}

/* 共通パーツ：カードスタイル */
.card {
    background: #12181d;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.6);
    border: 1px solid rgba(212, 175, 55, 0.3);
    position: relative;
}

/* 駐車場などの重要アラートカード */
.card .alert-card {
    border: 1px solid #e74c3c;
    box-shadow: 0 0 15px rgba(231, 76, 60, 0.2);
}

/* =========================
   メインビジュ（hero section)
   ========================= */
.hero-view {
    position: relative;
    height: 70vh;
    min-height: 450px;
    background-color: #050709;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #ffffff;
    padding: 0 20px;
}

/* ポスターの夜の熱気をイメージしたグラデ */
.hero-overlay {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: radial-gradient(circle at center, rgba(18, 24, 29, 0.4) 0%, rgba(5, 7, 9, 0.9) 80%);
}

.hero-content {
    position: relative;
    z-index: 10;
}

.hero-subtitle {
    display: inline-block;
    font-size: 1.1rem;
    font-weight: 700;
    border: 1px solid var(--gold-solid);
    color: var(--gold-solid);
    padding: 4px 15px;
    margin-bottom: 15px;
    letter-spacing: 0.1em;
}

.hero-catch {
    font-family: 'Noto Serif JP', serif;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    color: #ffffff;
    margin-bottom: 15px;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.hero-title {
    font-family: 'Noto Serif JP', serif;
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.3;
    margin-bottom: 25px;
}

/* ポスターの「納涼祭」ゴールド文字を再現 */
.hero-title .highlight {
    background: var(--gold-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 4.5rem;
    display: inline-block;
    filter: drop-shadow(0px 2px 8px rgba(184, 151, 66, 0.6));
    font-weight: 900;
}

.hero-date {
    font-size: 1.6rem;
    font-weight: 700;
    background: rgba(212, 175, 55, 0.15);
    border: 1px solid var(--gold-solid);
    color: #ffffff;
    display: inline-block;
    padding: 5px 25px;
    border-radius: 50px;
}
.hero-date span {
    font-size: 1.2rem;
    margin-left: 5px;
}

.hero-place {
    margin-top: 15px;
    font-size: 1.1rem;
    color: #bdc3c7;
}

/* ==========================================
   コンテンツエリア共通設定
   ==========================================
 */
.main-contents {
    background-color: #0b0f12;
}

.section-block {
    max-width: 1050px;
    margin: 0 auto;
    padding: 80px 20px;
}

 /* 背景に変化をつける */
.bg-dark-accent {
    max-width: 100%;
    background-color: #11161b;
}
.bg-dark-accent .section-block {
    padding: 80px 20px;
}

/* 見出しもゴールドのグラデに */
.section-title {
    font-family: 'Noto Serif JP', serif;
    font-size: 2rem;
    font-weight: 900;
    text-align: center;
    background: var(--gold-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 50px;
    position: relative;
    padding-bottom: 15px;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 2px;
    background: var(--gold-gradient);
}

/* ============================
   概要セクション(ポスターと概要）
   ============================ */

.overview-container {
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: 40px;
    align-items: start;
}
.poster-area {
    width: 100%;
}

.poster-area .poster-img {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.7);
    border: 1px solid rgba(212, 175, 55, 0.4);
    display: block;
}

.lead-text {
    font-size: 1rem;
    margin-bottom: 25px;
    color: #e2e8f0;
}

.info-table {
    width: 100%;
    border-collapse: collapse;
}

.info-table th, .info-table td {
    padding: 15px 10px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.info-table th {
    width: 25%;
    text-align: left;
    font-weight: 700;
    color: var(--gold-solid);
}

/* =======================
   各セクション装飾
   ======================= */

/* 会場マップ */
.image-placeholder {
    width: 100%;
    height: 580px;
    background-color: #1a2229;
    border: 1px dashed var(--gold-solid);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #94a3b8;
    margin-bottom: 25px;
    border-radius: 4px;
}

.image-placeholder img {
    width: 100%;
}

.map-notes li {
    margin-bottom: 8px;
    position: relative;
    padding-left: 20px;
    list-style: none;
}
.map-notes li::before {
    content: "■";
    color: var(--gold-solid);
    position: absolute;
    left: 0;
}

.attraction-guide-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--gold-solid);
    margin-bottom: 8px;
    position: relative;
    padding-left: 15px;
}

/* タイトル横の装飾 */
.attraction-guide-title::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    width: 4px;
    height: 1.1rem;
    background: var(--gold-gradient);
}

.attraction-guide-text {
    font-size: 0.95rem;
    color: #cbd5e1;
    line-height: 1.7;
    margin-bottom: 20px;
}
/* 注意事項 */
.notice-intro {
    font-weight: 700;
    color: #f1c40f;
    margin-bottom: 20px;
    text-align: center;
}

.notice-list li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 12px;
    list-style: none;
}

.notice-list li::before {
    content: "⚠️";
    position: absolute;
    left: 0;
}
/* イベントスケジュール（タイムライン） */
.schedule-intro {
    text-align: center;
    font-size: 0.9rem;
    color: #94a3b8;
    margin-bottom: 40px;
}

/* タイムラインの土台 */
.timeline {
    position: relative;
    max-width: 750px;
    margin: 0 auto;
    padding: 10px 0;
}

/* 中央を通るゴールドの縦線 */
.timeline::after {
    content: '';
    position: absolute;
    width: 2px;
    background: linear-gradient(to bottom, #b89742, #f7e5a9, #b89742);
    top: 0;
    bottom: 0;
    left: 110px;
    margin-left: -1px;
}

/* 各イベントのかたまり */
.timeline-item {
    padding: 15px 0;
    position: relative;
    display: flex;
    align-items: flex-start;
}

/* 時間を表示するボックス */
.time-box, .time-box-end {
    min-width: 85px;
    text-align: center;
    background: #1a2229;
    border: 1px solid var(--gold-solid);
    color: #ffffff;
    font-weight: 700;
    font-size: 0.95rem;
    padding: 4px 8px;
    border-radius: 4px;
    position: relative;
    z-index: 10;
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.2);
}

/* 終了時間のボックスだけ色を変えて落ち着かせる */
.time-box-end {
    border-color: #7f8c8d;
    background: #2c3e50;
    color: #bdc3c7;
    box-shadow: none;
}

/* 縦線上の丸いドット */
.timeline-item::before {
    content: '';
    position: absolute;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--gold-gradient);
    left: 110px;
    top: 26px;
    margin-left: -5px;
    z-index: 10;
    box-shadow: 0 0 8px #f6d365;
}

/* 出し物の内容テキストエリア */
.schedule-content {
    padding-left: 50px;
    flex: 1;
}

.schedule-event-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 5px;
}

.schedule-event-text {
    font-size: 0.9rem;
    color: #94a3b8;
    line-height: 1.6;
}
/* 案内 */
.info-list-card {
    padding: 35px;
}

.info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 35px;
}

.info-item-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 10px;
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
    padding-bottom: 5px;
}

.info-item-text {
    font-size: 0.9rem;
    color: #94a3b8;
    line-height: 1.7;
}
/* アクセス＆駐車場 */
.grid-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.card-sub-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--gold-solid);
    margin-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 8px;
}

.parking-alert-title {
    color: #e74c3c;
    font-weight: 800;
    font-size: 1.05rem;
    margin-bottom: 10px;
}

/* 応募ボタン */
.btn-container {
    margin-top: 25px;
}

.btn-submit {
    display: inline-block;
    background: linear-gradient(135deg, #c0392b 0%,#962d22 100%);
    color: #ffffff;
    font-weight: 700;
    padding: 14px 20px;
    border-radius: 4px;
    box-shadow: 0 4px 15px rgba(192, 57, 43, 0.4);
    transition: all 0.3s ease;
    width: 100%;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.2);
}