/* Container Query로 필터 반응형 제어 */
.filter-container {
    container-type: inline-size;
    background-color: var(--bg-secondary);
    border-radius: 12px;
    padding: clamp(12px, 2.5cqw, 18px);
    margin-bottom: 16px;
    border: 1px solid var(--border-color);
}

.filter-section {
    margin-bottom: clamp(12px, 2.5cqw, 18px);
}

.filter-section:last-child {
    margin-bottom: 0;
}

.section-title {
    font-size: clamp(14px, 2.5cqw, 18px);
    font-weight: bold;
    margin-bottom: clamp(8px, 1.5cqw, 12px);
    color: var(--text-primary);
}

/* 프리셋 버튼 영역 */
.preset-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(6px, 1.2cqw, 10px);
    align-items: center;
}

.preset-btn {
    padding: clamp(4px, 0.8cqw, 6px) clamp(8px, 1.5cqw, 12px);
    border: none;
    border-radius: 6px;
    background-color: var(--bg-button);
    color: var(--text-primary);
    cursor: pointer;
    font-size: clamp(11px, 1.6cqw, 12px);
    white-space: nowrap;
    transition: all 0.2s ease;
}

.preset-btn:hover {
    background-color: var(--bg-button-hover);
}

.preset-btn.active {
    background-color: var(--accent);
    color: white;
}

/* 컬럼 선택 체크박스 */
.column-checkboxes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(clamp(90px, 15cqw, 120px), 1fr));
    gap: clamp(4px, 0.8cqw, 6px);
}

.checkbox-item {
    display: flex;
    align-items: center;
    padding: clamp(3px, 0.6cqw, 5px) clamp(5px, 0.8cqw, 7px);
    border-radius: 4px;
    background-color: var(--bg-tertiary);
    font-size: clamp(11px, 1.8cqw, 13px);
    cursor: pointer;
    user-select: none;
    white-space: nowrap;
}

.checkbox-item:hover {
    background-color: var(--bg-button-hover);
}

.checkbox-item input[type="checkbox"] {
    margin-right: clamp(3px, 0.6cqw, 5px);
    transform: scale(clamp(0.9, 0.15cqw + 0.9, 1.1));
}

/* 기술지표 필터 드롭다운 */
.technical-filters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(clamp(90px, 16cqw, 120px), 1fr));
    gap: clamp(6px, 1.2cqw, 10px);
}

.dropdown-item {
    position: relative;
}

.dropdown-main {
    width: 100%;
    padding: clamp(5px, 0.8cqw, 7px);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    font-size: clamp(11px, 1.8cqw, 13px);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%23999' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 6px center;
    background-repeat: no-repeat;
    background-size: 14px;
    padding-right: 32px;
}

.dropdown-main:focus {
    outline: 2px solid var(--accent);
    border-color: var(--accent);
}

/* 다크모드 텍스트 색상 강제 적용 */
body.dark .checkbox-item {
    color: white !important;
}

body.light .checkbox-item {
    color: black !important;
}

/* 추가 다크모드 텍스트 색상 보정 */
body.dark .dropdown-main {
    color: black !important;
}

body.light .dropdown-main {
    color: black !important;
}

/* 섹션 제목도 보정 */
body.dark .section-title {
    color: white !important;
}

body.light .section-title {
    color: black !important;
}