/**
 * DarkFina - 다크풀 분석 페이지 전용 스타일
 */

/* ========================================
   다크풀 컨텐츠 영역
======================================== */
.darkpool-content {
    display: flex;
    flex-direction: column;
}

.darkpool-content > * {
    margin-bottom: 20px;
}

.darkpool-content > *:last-child {
    margin-bottom: 0;
}

/* ========================================
   다크풀 상태 카드
======================================== */
.darkpool-status-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.darkpool-stat-card {
    background: var(--df-bg-secondary);
    border: 1px solid var(--df-border);
    border-radius: 12px;
    padding: 20px;
}

.darkpool-stat-card h4 {
    color: var(--df-cyan);
    margin-bottom: 16px;
    font-size: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.darkpool-stat-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.darkpool-stat-row:last-child {
    border-bottom: none;
}

.darkpool-stat-row .label {
    color: var(--df-text-secondary);
    font-size: 14px;
}

.darkpool-stat-row .value {
    font-weight: 600;
    font-size: 15px;
}

/* 다크풀 비율 하이라이트 */
.dp-ratio-high {
    color: var(--df-pink);
    font-weight: 700;
}

.dp-ratio-medium {
    color: #ff7a00;
    font-weight: 600;
}

.dp-ratio-normal {
    color: var(--df-cyan);
}

/* ========================================
   누적 통계 카드
======================================== */
.cumulative-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
}

.cumulative-stat-item {
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 8px;
    padding: 14px 12px;
    text-align: center;
    min-width: 0; /* flex/grid overflow 방지 */
}

.cumulative-stat-item .period {
    color: var(--df-text-secondary);
    font-size: 12px;
    margin-bottom: 8px;
}

.cumulative-stat-item .value {
    font-size: 18px;
    font-weight: 700;
    color: var(--df-cyan);
    word-break: break-word;
    overflow-wrap: break-word;
}

.cumulative-stat-item .sub {
    font-size: 11px;
    color: var(--df-text-muted);
    margin-top: 4px;
}

@media (max-width: 600px) {
    .cumulative-stats {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }

    .cumulative-stat-item {
        padding: 12px 10px;
    }

    .cumulative-stat-item .value {
        font-size: 16px;
    }
}

@media (max-width: 400px) {
    .cumulative-stats {
        grid-template-columns: 1fr;
    }
}

/* ========================================
   거래소 분포 테이블
======================================== */
.exchange-table {
    width: 100%;
    border-collapse: collapse;
}

.exchange-table th {
    background: var(--df-bg-card);
    color: var(--df-cyan);
    padding: 12px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--df-border);
    font-size: 13px;
}

.exchange-table td {
    padding: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-size: 14px;
}

.exchange-table tr:hover {
    background: rgba(0, 212, 255, 0.05);
}

.exchange-type-badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

.exchange-type-dark {
    background: rgba(255, 51, 102, 0.2);
    color: var(--df-pink);
}

.exchange-type-light {
    background: rgba(0, 255, 136, 0.2);
    color: var(--df-green);
}

/* ========================================
   가격대별 분석
======================================== */
.price-levels-container {
    /* margin handled by parent */
}

.price-levels-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.price-levels-header h4 {
    color: var(--df-cyan);
    margin: 0;
}

.load-price-levels-btn {
    padding: 8px 16px;
    background: linear-gradient(135deg, var(--df-cyan), var(--df-purple));
    border: none;
    border-radius: 6px;
    color: #fff;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.load-price-levels-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

.load-price-levels-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

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

.price-levels-table th {
    background: var(--df-bg-card);
    color: var(--df-cyan);
    padding: 10px;
    text-align: right;
    font-size: 12px;
}

.price-levels-table th:first-child {
    text-align: left;
}

.price-levels-table td {
    padding: 10px;
    text-align: right;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-size: 13px;
}

.price-levels-table td:first-child {
    text-align: left;
    font-weight: 600;
}

/* ========================================
   FINRA ATS 데이터
======================================== */
.finra-section {
    background: var(--df-bg-secondary);
    border: 1px solid var(--df-border);
    border-radius: 12px;
    padding: 20px;
}

.finra-section h4 {
    color: var(--df-cyan);
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.finra-badge {
    background: rgba(0, 212, 255, 0.2);
    color: var(--df-cyan);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
}

/* ========================================
   히스토리 차트 (다크풀 전용)
======================================== */
.darkpool-chart-container {
    background: var(--df-bg-secondary);
    border: 1px solid var(--df-border);
    border-radius: 12px;
    padding: 20px;
}

.darkpool-chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 12px;
}

.darkpool-chart-header h4 {
    color: var(--df-cyan);
    margin: 0;
}

.chart-period-buttons {
    display: flex;
    gap: 8px;
}

.chart-period-btn {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--df-border);
    border-radius: 6px;
    color: var(--df-text-secondary);
    cursor: pointer;
    transition: all 0.2s;
    font-size: 13px;
}

.chart-period-btn:hover {
    border-color: var(--df-cyan);
    color: var(--df-cyan);
}

.chart-period-btn.active {
    background: var(--df-cyan);
    color: #000;
    border-color: var(--df-cyan);
}

.chart-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 12px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--df-border);
}

.chart-stat-item {
    text-align: center;
    min-width: 0;
}

.chart-stat-item .label {
    color: var(--df-text-secondary);
    font-size: 12px;
    margin-bottom: 4px;
}

.chart-stat-item .value {
    font-size: 16px;
    font-weight: 600;
    color: var(--df-text-primary);
    word-break: break-word;
}

@media (max-width: 768px) {
    .chart-stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .chart-period-buttons {
        width: 100%;
        justify-content: center;
    }

    .chart-stat-item .value {
        font-size: 14px;
    }
}

@media (max-width: 400px) {
    .chart-stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }
}

/* ========================================
   로딩 상태
======================================== */
.darkpool-loading {
    text-align: center;
    padding: 40px;
    color: var(--df-text-secondary);
}

.darkpool-loading .spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--df-border);
    border-top-color: var(--df-cyan);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

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

/* ========================================
   데이터 없음 상태
======================================== */
.no-data {
    text-align: center;
    padding: 40px;
    color: var(--df-text-muted);
    background: rgba(255,255,255,0.02);
    border-radius: 8px;
}

.no-data-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}