/* --- 기본 & 테마 설정 --- */
:root {
    --primary-bg: #F7F9FC;
    --secondary-bg: #FFFFFF;
    --text-primary: #0C1E42;
    --text-secondary: #5F6B7A;
    --accent-color: #007AFF;
    --accent-color-light: #E5F2FF;
    --border-color: #E1E5EA;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Noto Sans KR', sans-serif;
    background-color: var(--primary-bg);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body.modal-open { overflow: hidden; }

/* --- 전체 너비 요소들 (헤더, 필터) --- */
header {
    background-color: var(--secondary-bg);
    border-bottom: 1px solid var(--border-color);
}

.sticky-wrapper {
    position: sticky;
    top: 0;
    z-index: 100;
}

#filter-bar { 
    background-color: var(--secondary-bg);
    border-bottom: 1px solid var(--border-color);
}

/* --- 콘텐츠 중앙 정렬 래퍼 --- */
.content-wrapper { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
header .content-wrapper { padding-top: 24px; padding-bottom: 24px; }
#filter-bar .content-wrapper { padding-top: 12px; padding-bottom: 12px; }
header h1 { font-size: 28px; font-weight: 700; }

/* --- 필터 바 스크롤 컨테이너 --- */
.filter-scroll-container { display: flex; align-items: center; overflow-x: auto; white-space: nowrap; -ms-overflow-style: none; scrollbar-width: none; }
.filter-scroll-container::-webkit-scrollbar { display: none; }
.filter-btn { display: flex; align-items: center; gap: 8px; background-color: transparent; color: var(--text-secondary); border: 1px solid var(--border-color); padding: 10px 16px; border-radius: 30px; margin-right: 12px; font-size: 15px; font-weight: 500; cursor: pointer; transition: all 0.2s ease-in-out; flex-shrink: 0; }
.filter-btn svg { width: 18px; height: 18px; stroke: var(--text-secondary); transition: all 0.2s ease-in-out; }
.filter-btn:hover { background-color: #F0F0F0; border-color: #d1d1d1; }
.filter-btn.active { background-color: var(--accent-color-light); color: var(--accent-color); border-color: var(--accent-color); font-weight: 700; }
.filter-btn.active svg { stroke: var(--accent-color); }

/* 필터 초기화 버튼 스타일 */
/* 필터 초기화 버튼 스타일 */
.reset-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    width: 42px; 
    height: 42px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s ease-in-out;
}
.reset-btn svg {
    width: 20px;
    height: 20px;
    stroke: var(--text-secondary);
    transition: transform 0.4s ease;
}
.reset-btn:hover {
    background-color: #f0f0f0;
    border-color: #d1d1d1;
}
.reset-btn:hover svg {
    transform: rotate(-360deg);
}


/* --- 메인 콘텐츠 컨테이너 --- */
#app-container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* --- 드롭다운 메뉴 --- */
#dropdown-container-wrapper {
    position: absolute;
    width: 100%;
    left: 0;
    top: 100%; /* 필터바 바로 아래에 위치 */
}
#dropdown-container { 
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative; 
    z-index: 99; 
    transition: height 0.3s ease; 
}
.dropdown-menu { display: none; position: absolute; top: 10px; left: 20px; right: 20px; background-color: var(--secondary-bg); border-radius: 12px; padding: 20px; animation: fadeIn 0.3s ease; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08); border: 1px solid var(--border-color); }
.dropdown-menu.show { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: translateY(0); } }

/* --- 캘린더 전체 --- */
.calendar-nav { display: flex; justify-content: space-between; align-items: center; padding-bottom: 15px; }
.current-year-month { font-size: 18px; font-weight: 500; }
.calendar-nav-btn { background: transparent; border: none; cursor: pointer; padding: 5px; border-radius: 50%; width: 36px; height: 36px; display: inline-flex; justify-content: center; align-items: center; }
.calendar-nav-btn:hover { background-color: #f0f0f0; }
.calendar-nav-btn svg { width: 20px; height: 20px; stroke: var(--text-secondary); }
.calendar-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px; text-align: center; }
.calendar-header { font-weight: 500; color: var(--text-secondary); padding-bottom: 10px; font-size: 14px; }
.calendar-day {
    background: transparent;
    border: none;
    cursor: pointer;
    width: 40px;
    height: 40px;
    line-height: 40px;
    padding: 0;
    margin: 0 auto;
    border-radius: 50%;
    font-size: 15px;
    transition: background-color 0.2s, color 0.2s;
}
.calendar-day.empty { cursor: default; background-color: transparent !important; }
.calendar-day:not(.empty):hover { background-color: var(--accent-color-light); }
.calendar-day.selected {
    background-color: var(--accent-color);
    color: white;
    font-weight: bold;
}
.calendar-footer { display: flex; justify-content: space-between; padding-top: 15px; border-top: 1px solid var(--border-color); }
.calendar-action-btn { background: var(--accent-color-light); color: var(--accent-color); border: none; padding: 8px 16px; border-radius: 8px; font-size: 14px; font-weight: 500; cursor: pointer; transition: background-color 0.2s; }
.calendar-action-btn:hover { background-color: #d0e6ff; }


/* 지역 선택기 & 옵션 리스트 */
.region-selector { display: flex; gap: 10px; }
.region-col { flex: 1; height: 220px; overflow-y: auto; background-color: var(--primary-bg); border-radius: 8px; padding: 8px; }
.region-item { padding: 12px; cursor: pointer; border-radius: 6px; font-size: 15px; transition: background-color 0.2s, color 0.2s; }
.region-item:hover { background-color: var(--accent-color-light); }
.region-item.selected { background-color: var(--accent-color); color: var(--secondary-bg); font-weight: 500; }
.option-list { display: flex; flex-wrap: wrap; gap: 10px; }
.option-item { background-color: transparent; color: var(--text-secondary); border: 1px solid var(--border-color); padding: 10px 18px; border-radius: 20px; cursor: pointer; font-size: 15px; transition: all 0.2s; }
.option-item:hover { background-color: var(--accent-color-light); border-color: var(--accent-color); color: var(--accent-color); }

/* --- 이벤트 목록 --- */
#event-list { padding-top: 20px; padding-bottom: 20px; display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 640px) { #event-list { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { #event-list { grid-template-columns: repeat(3, 1fr); } }
.event-card { background-color: var(--secondary-bg); border-radius: 16px; overflow: hidden; transition: transform 0.2s ease, box-shadow 0.2s ease; cursor: pointer; border: 1px solid var(--border-color); }
.event-card:hover { transform: translateY(-4px); box-shadow: 0 12px 28px rgba(0, 0, 0, 0.1); }
.event-card .thumbnail { width: 100%; height: 180px; object-fit: cover; background-color: #eee; display: block; }
.event-info { padding: 16px; }
.event-info .category-tag { font-size: 13px; font-weight: 500; color: var(--text-secondary); margin-bottom: 8px; }
.event-info h3 { font-size: 18px; font-weight: 700; margin: 0 0 8px 0; overflow: hidden; text-overflow: ellipsis; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; min-height: 48px; }
.event-info .location-info { font-size: 14px; color: var(--text-secondary); display: flex; align-items: center; gap: 6px; margin-top: 12px; }
.event-info .location-info svg { width: 14px; height: 14px; flex-shrink: 0; }

/* --- 상세 정보 모달 --- */
#modal-container { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 1000; display: flex; align-items: center; justify-content: center; transition: opacity 0.3s ease; }
#modal-container.hidden { opacity: 0; pointer-events: none; }
.modal-backdrop { position: absolute; width: 100%; height: 100%; background-color: rgba(0, 0, 0, 0.6); }
.modal-content { position: relative; background-color: var(--secondary-bg); width: 90%; max-width: 700px; max-height: 90vh; border-radius: 20px; overflow: hidden; display: flex; flex-direction: column; transform: scale(0.95); transition: transform 0.3s ease; }
#modal-container:not(.hidden) .modal-content { transform: scale(1); }
.modal-header img { width: 100%; height: 250px; object-fit: cover; display: block; }
.modal-body { padding: 24px 30px; overflow-y: auto; }
.modal-close-btn { position: absolute; top: 15px; right: 15px; width: 36px; height: 36px; background-color: rgba(0,0,0,0.3); color: white; border: none; border-radius: 50%; font-size: 20px; cursor: pointer; display: flex; align-items: center; justify-content: center; line-height: 1; }
.modal-body h2 { font-size: 26px; font-weight: 700; margin-bottom: 12px; }
.modal-info-grid { display: grid; grid-template-columns: 1fr; gap: 16px; padding: 20px 0; border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); margin: 20px 0; }
.info-item { display: flex; align-items: flex-start; gap: 12px; }
.info-item svg { width: 20px; height: 20px; flex-shrink: 0; stroke: var(--accent-color); margin-top: 2px; }
.info-item div { font-size: 15px; }
.info-item strong { font-weight: 500; color: var(--text-primary); }
.info-item span { color: var(--text-secondary); }
.modal-description p { font-size: 16px; line-height: 1.7; color: var(--text-secondary); }
.modal-footer { padding: 20px 30px; border-top: 1px solid var(--border-color); display: flex; gap: 12px; }
.action-btn { flex-grow: 1; text-align: center; padding: 14px; border-radius: 10px; text-decoration: none; font-weight: 500; font-size: 16px; transition: background-color 0.2s; }
.action-btn.primary { background-color: var(--accent-color); color: white; }
.action-btn.primary:hover { background-color: #0056b3; }
.action-btn.secondary { background-color: var(--accent-color-light); color: var(--accent-color); }
.action-btn.secondary:hover { background-color: #d0e6ff; }
@media (min-width: 640px) { .modal-info-grid { grid-template-columns: repeat(2, 1fr); } }

/* --- 무한 스크롤 로더 --- */
#loader { display: none; padding: 20px; text-align: center; }
.spinner { width: 40px; height: 40px; border: 4px solid var(--accent-color-light); border-top-color: var(--accent-color); border-radius: 50%; animation: spin 1s linear infinite; margin: 0 auto; }
@keyframes spin { to { transform: rotate(360deg); } }

/* --- 초기 로딩 화면 --- */
#initial-loader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--primary-bg);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    transition: opacity 0.3s ease;
}

#initial-loader .spinner {
    width: 50px;
    height: 50px;
    border-width: 5px;
}