/**
 * DarkFina - 종목 페이지 공통 스타일
 * darkpool.php, short.php, institution.php, options.php 에서 공유
 */

/* ========================================
   로딩 스피너
======================================== */
.loading-spinner {
    display: none;
    text-align: center;
    padding: 40px;
}

.loading-spinner.active {
    display: block;
}

.loading-spinner .pulse {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--df-cyan), var(--df-purple));
    border-radius: 50%;
    margin: 0 auto 20px;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.7; }
}

/* ========================================
   분석 컨테이너
======================================== */
.analysis-container {
    display: none;
}

.analysis-container.loaded {
    display: block;
}

/* ========================================
   에러 메시지
======================================== */
.error-message {
    background: rgba(255, 51, 102, 0.1);
    border: 1px solid var(--df-pink);
    padding: 20px;
    border-radius: 8px;
    margin: 20px;
    text-align: center;
    color: var(--df-pink);
}

/* ========================================
   메트릭 그리드 & 카드
======================================== */
.metric-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.metric-card {
    background: var(--df-bg-secondary);
    border: 1px solid var(--df-border);
    border-radius: 8px;
    padding: 20px;
}

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

.metric-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

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

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

.metric-row .value {
    color: var(--df-text-primary);
    font-weight: 600;
}

.value.extreme { color: var(--df-pink); }
.value.high { color: #ff7a00; }
.value.normal { color: var(--df-cyan); }

/* ========================================
   데이터 테이블
======================================== */
.table-scroll-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    margin: 10px 0;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px;
}

.data-table th {
    background: var(--df-bg-secondary);
    color: var(--df-cyan);
    padding: 12px;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--df-border);
    white-space: nowrap;
}

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

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

/* 상태 색상 */
.status-extreme { color: var(--df-pink); font-weight: 600; }
.status-high { color: #ff7a00; }
.status-normal { color: var(--df-text-secondary); }

/* ========================================
   서머리 섹션
======================================== */
.summary-section {
    background: linear-gradient(135deg, rgba(0,255,255,0.1) 0%, rgba(255,51,102,0.1) 100%);
    border: 1px solid var(--df-border);
    border-radius: 12px;
    padding: 24px;
}

.summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 16px;
}

.summary-item {
    text-align: center;
}

.summary-item .label {
    color: var(--df-text-secondary);
    font-size: 14px;
    margin-bottom: 8px;
}

.summary-item .value {
    font-size: 24px;
    font-weight: 700;
    color: var(--df-cyan);
}

.summary-item .value.extreme { color: var(--df-pink); }

/* ========================================
   정보 박스
======================================== */
.info-box {
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid rgba(0, 212, 255, 0.2);
    border-radius: 8px;
    padding: 16px;
    font-size: 13px;
    color: var(--df-text-secondary);
}

.info-box strong {
    color: var(--df-cyan);
}

/* ========================================
   정보 팝업 (툴팁)
======================================== */
.info-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    background: rgba(0, 212, 255, 0.2);
    border-radius: 50%;
    font-size: 11px;
    color: var(--df-cyan);
    cursor: pointer;
    transition: all 0.2s;
}

.info-icon:hover {
    background: rgba(0, 212, 255, 0.4);
}

.info-popup {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--df-bg-card);
    border: 1px solid var(--df-border);
    border-radius: 12px;
    padding: 24px;
    max-width: 400px;
    width: 90%;
    z-index: 1000;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.info-popup.active {
    display: block;
}

.info-popup .close-btn {
    position: absolute;
    top: 12px;
    right: 16px;
    font-size: 24px;
    cursor: pointer;
    color: var(--df-text-secondary);
}

/* ========================================
   업데이트 인디케이터
======================================== */
.update-indicator {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--df-bg-card);
    border: 1px solid var(--df-cyan);
    padding: 12px 20px;
    border-radius: 8px;
    display: none;
    z-index: 1000;
    color: var(--df-cyan);
    font-size: 14px;
}

.update-indicator.active {
    display: block;
    animation: fadeInOut 2s ease-in-out;
}

@keyframes fadeInOut {
    0%, 100% { opacity: 0; }
    20%, 80% { opacity: 1; }
}

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

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

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

.history-chart-controls {
    display: flex;
    gap: 8px;
}

.history-chart-controls button {
    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;
}

.history-chart-controls button:hover {
    border-color: var(--df-cyan);
    color: var(--df-cyan);
}

.history-chart-controls button.active {
    background: var(--df-cyan);
    color: #000;
    border-color: var(--df-cyan);
}

.history-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 16px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--df-border);
}

/* ========================================
   백 링크
======================================== */
.back-link {
    text-align: center;
    margin: 40px 0 20px;
}

.back-link a {
    color: var(--df-cyan);
    text-decoration: none;
    font-size: 14px;
}

.back-link a:hover {
    text-decoration: underline;
}

/* ========================================
   모바일 반응형
======================================== */
@media (max-width: 768px) {
    .metric-grid {
        grid-template-columns: 1fr;
    }

    .summary-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .history-chart-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .table-scroll-wrapper {
        margin: 0 -16px;
        padding: 0 16px;
    }
}

/* ========================================
   실시간 가격 애니메이션
======================================== */
.current-price,
.price-now,
.price-main {
    transition: color 0.3s ease;
    padding: 2px 6px;
    border-radius: 4px;
}

.flash-up {
    animation: flashGreen 0.5s ease;
}

.flash-down {
    animation: flashRed 0.5s ease;
}

@keyframes flashGreen {
    0% { background: rgba(34, 197, 94, 0.4); }
    100% { background: transparent; }
}

@keyframes flashRed {
    0% { background: rgba(239, 68, 68, 0.4); }
    100% { background: transparent; }
}

/* 가격 변동 색상 */
.price-change.up,
.price-change-percent.up {
    color: var(--df-green);
}

.price-change.down,
.price-change-percent.down {
    color: var(--df-pink);
}

/* 세션 태그 */
.session-tag {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

.session-pre {
    background: rgba(251, 191, 36, 0.2);
    color: #fbbf24;
}

.session-regular {
    background: rgba(34, 197, 94, 0.2);
    color: #22c55e;
}

.session-post,
.session-postpost {
    background: rgba(139, 92, 246, 0.2);
    color: #8b5cf6;
}

.session-closed {
    background: rgba(107, 114, 128, 0.2);
    color: #6b7280;
}