/* =============================================================
   이벤트 페이지 스타일
   - 목록 (이벤트 카드, 탭)
   - 상세 페이지
   - 모바일 반응형
   ============================================================= */

/* -------------------------------------------------------------
   탭 UI
   ------------------------------------------------------------- */
.event-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 24px;
    border-bottom: 2px solid var(--color-border-light);
}

.event-tab-btn {
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 500;
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -2px;
    cursor: pointer;
    color: var(--color-text-light);
    transition: color 0.2s, border-color 0.2s;
}

.event-tab-btn:hover {
    color: var(--color-text);
}

.event-tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    font-weight: 600;
}

/* -------------------------------------------------------------
   이벤트 목록 그리드
   ------------------------------------------------------------- */
.event-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

/* -------------------------------------------------------------
   이벤트 카드
   ------------------------------------------------------------- */
.event-card {
    border-radius: 12px;
    overflow: hidden;
    background: var(--color-bg);
    border: 1px solid var(--color-border-light);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.event-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

/* 종료된 이벤트 - 흑백 처리 */
.event-card--ended .event-card__thumb img {
    filter: grayscale(60%);
    opacity: 0.8;
}

/* 카드 썸네일 (16:9 비율) */
.event-card__thumb {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: var(--color-bg-light);
}

.event-card__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s;
}

.event-card:hover .event-card__thumb img {
    transform: scale(1.03);
}

/* 카드 정보 영역 */
.event-card__info {
    padding: 12px 14px 14px;
}

.event-card__title {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.event-card__period {
    font-size: 12px;
    color: var(--color-text-light);
}

/* -------------------------------------------------------------
   상태 배지
   ------------------------------------------------------------- */
.event-badge {
    position: absolute;
    top: 10px;
    left: 10px;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.3px;
}

.event-badge--ongoing {
    background: var(--color-primary);
    color: #fff;
}

.event-badge--ended {
    background: rgba(0, 0, 0, 0.45);
    color: #fff;
}

/* -------------------------------------------------------------
   로딩 스피너
   ------------------------------------------------------------- */
.event-loading {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 200px;
    grid-column: 1 / -1;
}

.event-spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--color-border-light);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: eventSpin 0.7s linear infinite;
}

@keyframes eventSpin {
    to { transform: rotate(360deg); }
}

/* -------------------------------------------------------------
   빈 상태
   ------------------------------------------------------------- */
.event-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--color-text-light);
    font-size: 15px;
}

/* -------------------------------------------------------------
   상세 페이지
   ------------------------------------------------------------- */
.event-detail {
    max-width: 720px;
    margin: 0 auto;
}

/* 상세 썸네일 (16:9 비율) */
.event-detail__thumb {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: 12px;
    overflow: hidden;
    background: var(--color-bg-light);
    margin-bottom: 20px;
}

.event-detail__thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* 상세 헤더 */
.event-detail__header {
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border-light);
    margin-bottom: 24px;
}

.event-detail__title {
    font-size: 20px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 8px;
    line-height: 1.4;
}

.event-detail__period {
    font-size: 13px;
    color: var(--color-text-light);
}

/* 상세 내용 (HTML 렌더링) */
.event-detail__content {
    min-height: 200px;
    font-size: 15px;
    line-height: 1.8;
    color: var(--color-text);
    padding-bottom: 24px;
    border-bottom: 1px solid var(--color-border-light);
    margin-bottom: 24px;
}

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

/* 상세 하단 버튼 영역 */
.event-detail__footer {
    margin-bottom: 24px;
}

/* -------------------------------------------------------------
   모바일 반응형 (최대 480px)
   ------------------------------------------------------------- */
@media (max-width: 480px) {
    /* 목록: 1열로 변경 */
    .event-list {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .event-tab-btn {
        padding: 10px 16px;
        font-size: 14px;
    }

    .event-card__title {
        font-size: 13px;
        white-space: normal;
        display: -webkit-box;
        -webkit-line-clamp: 2;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .event-detail__title {
        font-size: 17px;
    }

    .event-detail__content {
        font-size: 14px;
    }
}

/* -------------------------------------------------------------
   태블릿 반응형 (768px 이하)
   ------------------------------------------------------------- */
@media (max-width: 768px) {
    .event-detail {
        max-width: 100%;
    }
}