/* Stats Page - Liquid Glass Style */

/* Контейнер статистики */
.stats-container {
    padding: var(--spacing) 0;
}

/* Карточки статистики */
.stats-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--blur-amount));
    -webkit-backdrop-filter: blur(var(--blur-amount));
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    box-shadow: 
        0 8px 32px var(--glass-shadow),
        inset 0 1px 0 rgba(255, 255, 255, 0.3);
    margin-bottom: var(--spacing);
    padding: 24px;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.stats-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.05), transparent);
    transform: rotate(45deg);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

.stats-card:hover {
    transform: translateY(-8px);
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.4);
}

/* Заголовки статистики */
.stats-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.stats-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.reset-stats-btn {
    background: rgba(255, 107, 107, 0.1);
    border: 1px solid rgba(255, 107, 107, 0.2);
    border-radius: 8px;
    padding: 8px 12px;
    color: #FF6B6B;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 14px;
}

.reset-stats-btn:hover {
    background: rgba(255, 107, 107, 0.2);
    color: white;
    transform: scale(1.05);
}

.stats-icon {
    width: 50px;
    height: 50px;
    border-radius: 15px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(66, 153, 225, 0.4);
    position: relative;
    overflow: hidden;
}

.stats-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: iconGlow 2s infinite alternate;
}

@keyframes iconGlow {
    0% { opacity: 0; }
    100% { opacity: 1; }
}

.stats-icon i {
    color: white;
    font-size: 24px;
    z-index: 1;
    position: relative;
}

.stats-title {
    font-size: 22px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    background: linear-gradient(135deg, #fff, rgba(255, 255, 255, 0.8));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Метрики */
.stats-metrics {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

.metric-item {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--border-radius-small);
    padding: 16px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.metric-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple), var(--accent-pink));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.metric-item:hover::before {
    transform: scaleX(1);
}

.metric-item:hover {
    background: rgba(255, 255, 255, 0.12);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.metric-value {
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 4px;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.metric-label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* График */
.chart-container {
    position: relative;
    height: 280px;
    margin-bottom: 20px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-small);
    padding: 16px;
    overflow: hidden;
}

.chart-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.03) 0%, transparent 70%);
    pointer-events: none;
}

#statsChart {
    position: relative;
    z-index: 1;
}

/* Легенда графика */
.chart-legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 16px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.legend-received { background: var(--accent-blue); }
.legend-sent { background: var(--accent-purple); }

/* Периоды времени */
.period-selector {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    padding: 4px;
}

.period-btn {
    flex: 1;
    padding: 8px 16px;
    background: transparent;
    border: none;
    border-radius: 12px;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.period-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.period-btn span {
    position: relative;
    z-index: 1;
}

.period-btn:hover::before {
    opacity: 0.2;
}

.period-btn.active {
    color: white;
    box-shadow: 0 4px 16px rgba(66, 153, 225, 0.3);
}

.period-btn.active::before {
    opacity: 1;
}

/* Детальная статистика */
.detailed-stats {
    display: grid;
    gap: 12px;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-small);
    transition: all 0.3s ease;
}

.detail-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateX(4px);
}

.detail-label {
    font-size: 15px;
    color: var(--text-secondary);
    font-weight: 500;
}

.detail-value {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
}

/* Прогресс бары */
.progress-container {
    margin: 16px 0;
}

.progress-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 600;
}

.progress-text {
    color: var(--text-secondary);
}

.progress-percentage {
    color: var(--text-primary);
}

.progress-bar {
    height: 8px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    overflow: hidden;
    position: relative;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-blue), var(--accent-purple));
    border-radius: 4px;
    transition: width 1s ease;
    position: relative;
}

.progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    animation: progressGlow 2s infinite;
}

@keyframes progressGlow {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Пустое состояние */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

.empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.empty-description {
    font-size: 14px;
    line-height: 1.5;
    max-width: 280px;
    margin: 0 auto;
}

/* Загрузка */
.loading-spinner {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 200px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid rgba(255, 255, 255, 0.1);
    border-top: 3px solid var(--accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Адаптивность */
@media (max-width: 428px) {
    .stats-metrics {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .chart-container {
        height: 240px;
        padding: 12px;
    }
    
    .metric-value {
        font-size: 24px;
    }
    
    .period-selector {
        flex-direction: column;
        gap: 4px;
    }
    
    .period-btn {
        padding: 10px 16px;
    }
    
    .chart-legend {
        gap: 12px;
    }
}