/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    color: #333;
    line-height: 1.6;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 30px;
    text-align: center;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 10px;
}

.header h1 i {
    color: #667eea;
    margin-right: 15px;
}

.subtitle {
    font-size: 1.1rem;
    color: #718096;
    font-weight: 400;
}

/* Dashboard */
.dashboard {
    flex: 1;
    display: grid;
    gap: 25px;
    grid-template-columns: 1fr;
}

/* Control Panel */
.control-panel {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.date-selector {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.date-selector label {
    font-weight: 600;
    color: #2d3748;
    display: flex;
    align-items: center;
    gap: 8px;
}

.date-input {
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    font-size: 1rem;
    background: white;
    color: #2d3748;
    min-width: 200px;
    transition: all 0.3s ease;
}

.date-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.refresh-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    color: white;
    padding: 12px 15px;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 45px;
}

.refresh-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.refresh-btn:active {
    transform: translateY(0);
}

/* Summary Cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

.summary-card {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: 16px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all 0.3s ease;
    border: 1px solid rgba(226, 232, 240, 0.8);
}

.summary-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.summary-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.summary-icon.temp-icon {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a24 100%);
}

.summary-icon.lux-icon {
    background: linear-gradient(135deg, #ffd93d 0%, #ff9500 100%);
}

.summary-content h4 {
    font-size: 0.9rem;
    color: #718096;
    font-weight: 500;
    margin-bottom: 5px;
}

.summary-content p {
    font-size: 1.4rem;
    font-weight: 700;
    color: #2d3748;
}

/* Charts Container */
.charts-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 25px;
}

.chart-wrapper {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
    border: 1px solid rgba(255, 255, 255, 0.18);
    transition: all 0.3s ease;
}

.chart-wrapper:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(31, 38, 135, 0.4);
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 15px;
}

.chart-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #2d3748;
    display: flex;
    align-items: center;
    gap: 10px;
}

.chart-stats {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.stat-label {
    font-size: 0.8rem;
    color: #718096;
    font-weight: 500;
}

.stat-value {
    font-size: 1.1rem;
    font-weight: 700;
    color: #2d3748;
}

.chart-container {
    height: 300px;
    position: relative;
}

/* Data Info */
.data-info {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
    border: 1px solid rgba(255, 255, 255, 0.18);
}

.info-card h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.info-card p {
    color: #718096;
    margin-bottom: 20px;
}

.data-stats {
    display: flex;
    flex-direction: column;
    gap: 10px;
    color: #2d3748;
}

.stat-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid #e2e8f0;
    flex-wrap: wrap;
    gap: 10px;
}

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

/* Loading Indicator */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    backdrop-filter: blur(5px);
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 15px;
}

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

.loading p {
    color: white;
    font-size: 1.1rem;
    font-weight: 500;
}

/* Error Message */
.error-message {
    position: fixed;
    top: 20px;
    right: 20px;
    background: #f56565;
    color: white;
    padding: 15px 20px;
    border-radius: 12px;
    box-shadow: 0 5px 15px rgba(245, 101, 101, 0.4);
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 1001;
    max-width: 400px;
    animation: slideIn 0.3s ease;
}

.error-message.hidden {
    display: none;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Footer */
.footer {
    margin-top: 40px;
    text-align: center;
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .header {
        padding: 20px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .charts-container {
        grid-template-columns: 1fr;
    }
    
    .chart-container {
        height: 250px;
    }
    
    .date-selector {
        flex-direction: column;
        align-items: stretch;
    }
    
    .date-input {
        min-width: auto;
    }
    
    .chart-header {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }
    
    .chart-stats {
        justify-content: center;
    }
    
    .stat-row {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }
    
    .summary-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .header h1 {
        font-size: 1.8rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .chart-container {
        height: 200px;
    }
    
    .error-message {
        position: fixed;
        top: 10px;
        left: 10px;
        right: 10px;
        max-width: none;
    }
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.3);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.5);
}

/* Accessibility improvements */
.refresh-btn:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

.date-input:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

/* Animation enhancements */
.chart-wrapper, .summary-card, .control-panel, .data-info {
    animation: fadeInUp 0.5s ease forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Data Info Styles */
.data-info {
    margin-top: 1rem;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.9);
    color: #2d3748 !important;
    border-radius: 8px;
    backdrop-filter: blur(10px);
}

.data-info * {
    color: #2d3748 !important;
}

.data-summary {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: #2d3748;
}

.data-summary span {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    white-space: nowrap;
}

@media (max-width: 768px) {
    .data-summary {
        flex-direction: column;
        gap: 0.5rem;
    }
}