/* YouTube Marketing Tool - Dark Theme Dashboard */

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

:root {
    --bg-primary: #0f0f0f;
    --bg-secondary: #181818;
    --bg-tertiary: #212121;
    --text-primary: #ffffff;
    --text-secondary: #aaaaaa;
    --accent-blue: #3ea6ff;
    --accent-green: #00d4aa;
    --accent-red: #ff4444;
    --accent-orange: #ff8800;
    --border-color: #303030;
    --hover-bg: #272727;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.dashboard-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* 헤더 */
.dashboard-header {
    background-color: var(--bg-secondary);
    padding: 20px 30px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.dashboard-header h1 {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
}

.country-selector {
    display: flex;
    align-items: center;
    gap: 15px;
}

.country-selector label {
    color: var(--text-secondary);
    font-size: 14px;
}

.country-selector select {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 8px 15px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    outline: none;
}

.country-selector select:hover {
    background-color: var(--hover-bg);
}

.btn-primary {
    background-color: var(--accent-blue);
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-primary:hover {
    background-color: #2d8fdb;
}

/* 메인 컨텐츠 */
.dashboard-content {
    display: grid;
    grid-template-columns: 350px 1fr 400px;
    gap: 1px;
    background-color: var(--border-color);
    flex: 1;
    overflow: hidden;
}

/* 왼쪽 패널: 채널 리스트 */
.panel-left {
    background-color: var(--bg-secondary);
    overflow-y: auto;
    padding: 20px;
}

.panel-left h2 {
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--text-primary);
    border-bottom: 2px solid var(--accent-blue);
    padding-bottom: 10px;
}

.filter-controls {
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.filter-controls label {
    font-size: 13px;
    color: var(--text-secondary);
}

.filter-controls select {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 6px 12px;
    border-radius: 4px;
    font-size: 13px;
    cursor: pointer;
    outline: none;
    flex: 1;
}

.filter-controls select:hover {
    background-color: var(--hover-bg);
}

.channel-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.channel-item {
    background-color: var(--bg-tertiary);
    padding: 15px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    border: 2px solid transparent;
    margin-bottom: 12px;
}

.channel-item:hover {
    background-color: var(--hover-bg);
    border-color: var(--accent-blue);
    transform: translateX(5px);
}

.channel-item.active {
    border-color: var(--accent-blue);
    background-color: var(--hover-bg);
}

.channel-item-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}

.channel-thumbnail {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
}

.channel-info h3 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.channel-info .category {
    font-size: 12px;
    color: var(--text-secondary);
}

.channel-stats-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 10px;
    font-size: 12px;
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 11px;
    margin-bottom: 2px;
}

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

.growth-positive {
    color: var(--accent-green);
}

.growth-negative {
    color: var(--accent-red);
}

/* 중앙 패널: 상세 분석 */
.panel-center {
    background-color: var(--bg-secondary);
    overflow-y: auto;
    padding: 30px;
}

.channel-details {
    max-width: 100%;
}

.empty-state {
    text-align: center;
    padding: 100px 20px;
    color: var(--text-secondary);
}

.detail-header {
    margin-bottom: 30px;
}

.detail-header h2 {
    font-size: 24px;
    margin-bottom: 10px;
    color: var(--text-primary);
}

.detail-header .channel-age {
    color: var(--text-secondary);
    font-size: 14px;
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 30px;
}

.overview-card {
    background-color: var(--bg-tertiary);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid var(--accent-blue);
}

.overview-card h3 {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
}

.overview-card .value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
}

.analysis-section {
    background-color: var(--bg-tertiary);
    padding: 25px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.analysis-section h3 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.analysis-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.analysis-item {
    display: flex;
    justify-content: space-between;
    padding: 12px;
    background-color: var(--bg-secondary);
    border-radius: 6px;
}

.analysis-item-label {
    color: var(--text-secondary);
    font-size: 14px;
}

.analysis-item-value {
    color: var(--text-primary);
    font-weight: 600;
    font-size: 14px;
}

.performance-indicators {
    display: flex;
    gap: 15px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 15px;
    background-color: var(--bg-secondary);
    border-radius: 6px;
    font-size: 13px;
}

.indicator.explosive {
    color: var(--accent-red);
}

.indicator.engagement {
    color: var(--accent-green);
}

.indicator.upload {
    color: var(--accent-orange);
}

.revenue-section {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    padding: 25px;
    border-radius: 8px;
    border: 2px solid var(--accent-blue);
}

.revenue-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin-top: 15px;
}

.revenue-card {
    background-color: var(--bg-primary);
    padding: 15px;
    border-radius: 6px;
    text-align: center;
}

.revenue-card .period {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.revenue-card .amount {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent-green);
}

/* 오른쪽 패널 */
.panel-right {
    background-color: var(--bg-secondary);
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.statistics-panel,
.trending-panel {
    background-color: var(--bg-tertiary);
    padding: 20px;
    border-radius: 8px;
}

.statistics-panel h2,
.trending-panel h2 {
    font-size: 16px;
    margin-bottom: 15px;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.channel-stats {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    padding: 10px;
    background-color: var(--bg-secondary);
    border-radius: 4px;
    font-size: 13px;
}

.stat-row-label {
    color: var(--text-secondary);
}

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

.trending-videos {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.trending-video-item {
    display: flex;
    gap: 12px;
    cursor: pointer;
    padding: 10px;
    border-radius: 6px;
    transition: background-color 0.2s;
}

.trending-video-item:hover {
    background-color: var(--hover-bg);
}

.video-thumbnail {
    width: 120px;
    height: 68px;
    border-radius: 4px;
    object-fit: cover;
    flex-shrink: 0;
}

.video-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.video-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-meta {
    font-size: 11px;
    color: var(--text-secondary);
    display: flex;
    gap: 10px;
}

.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

.empty-text {
    color: var(--text-secondary);
    font-size: 14px;
    text-align: center;
    padding: 20px;
}

.error {
    color: var(--accent-red);
    font-size: 14px;
    text-align: center;
    padding: 20px;
    background-color: rgba(255, 68, 68, 0.1);
    border-radius: 8px;
    border: 1px solid var(--accent-red);
}

.error small {
    display: block;
    margin-top: 10px;
    font-size: 12px;
    opacity: 0.8;
}

/* 스크롤바 스타일링 */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-tertiary);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--hover-bg);
}

/* 반응형 디자인 */
@media (max-width: 1400px) {
    .dashboard-content {
        grid-template-columns: 300px 1fr 350px;
    }
}

@media (max-width: 1200px) {
    .dashboard-content {
        grid-template-columns: 1fr;
        grid-template-rows: auto auto auto;
    }
    
    .panel-left,
    .panel-right {
        max-height: 400px;
    }
}