/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, 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;
}

/* Header Styles */
header {
    text-align: center;
    margin-bottom: 30px;
    color: white;
}

header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

header p {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Controls */
.controls {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-bottom: 30px;
}

.btn-primary, .btn-secondary {
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-primary {
    background: linear-gradient(45deg, #4CAF50, #45a049);
    color: white;
    box-shadow: 0 4px 15px rgba(76, 175, 80, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(76, 175, 80, 0.4);
}

.btn-secondary {
    background: linear-gradient(45deg, #2196F3, #1976D2);
    color: white;
    box-shadow: 0 4px 15px rgba(33, 150, 243, 0.3);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(33, 150, 243, 0.4);
}

.btn-icon {
    font-size: 1.1rem;
}

/* Loading Spinner */
.loading-spinner {
    display: flex;
    align-items: center;
    gap: 10px;
    color: white;
    font-weight: 500;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Dashboard Layout */
.dashboard {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 30px;
    margin-bottom: 30px;
}

@media (max-width: 768px) {
    .dashboard {
        grid-template-columns: 1fr;
    }
}

/* Chart Container */
.chart-container {
    background: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    backdrop-filter: blur(10px);
}

.chart-container h2 {
    margin-bottom: 20px;
    color: #333;
    font-size: 1.5rem;
}

.chart-wrapper {
    position: relative;
    height: 400px;
    margin-bottom: 20px;
}

.chart-legend {
    display: flex;
    justify-content: center;
    gap: 30px;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: #666;
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: 50%;
}

.legend-color.positive {
    background-color: #4CAF50;
}

.legend-color.negative {
    background-color: #f44336;
}

.legend-size {
    width: 20px;
    height: 20px;
    background: linear-gradient(45deg, #2196F3, #1976D2);
    border-radius: 50%;
}

/* Analysis Container */
.analysis-container {
    background: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    backdrop-filter: blur(10px);
}

.analysis-container h2 {
    margin-bottom: 20px;
    color: #333;
    font-size: 1.5rem;
}

.analysis-content {
    min-height: 200px;
    margin-bottom: 20px;
}

.analysis-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 200px;
    color: #666;
    font-style: italic;
}

.analysis-result {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 20px;
    border-left: 4px solid #2196F3;
}

.analysis-result h3 {
    color: #333;
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.analysis-result p {
    color: #555;
    line-height: 1.6;
    margin-bottom: 10px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    border-radius: 15px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    backdrop-filter: blur(10px);
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-card h3 {
    color: #666;
    font-size: 0.9rem;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    color: #333;
}

.stat-value.positive {
    color: #4CAF50;
}

.stat-value.negative {
    color: #f44336;
}

/* Sector Table */
.sector-table-container {
    background: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    backdrop-filter: blur(10px);
    margin-bottom: 30px;
}

.sector-table-container h2 {
    margin-bottom: 20px;
    color: #333;
    font-size: 1.5rem;
}

.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background-color: #f8f9fa;
    font-weight: 600;
    color: #333;
    position: sticky;
    top: 0;
}

tr:hover {
    background-color: #f5f5f5;
}

.status-badge {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.status-badge.positive {
    background-color: #e8f5e8;
    color: #4CAF50;
}

.status-badge.negative {
    background-color: #ffeaea;
    color: #f44336;
}

.status-badge.neutral {
    background-color: #f0f0f0;
    color: #666;
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    color: white;
    opacity: 0.8;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .chart-wrapper {
        height: 300px;
    }
    
    .chart-legend {
        gap: 15px;
    }
    
    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .stat-value {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .controls {
        flex-direction: column;
        gap: 15px;
    }
    
    .btn-primary, .btn-secondary {
        width: 100%;
        justify-content: center;
    }
    
    .chart-legend {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }
}

/* Error States */
.error-message {
    background: #ffebee;
    color: #c62828;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid #f44336;
    margin: 20px 0;
}

.success-message {
    background: #e8f5e8;
    color: #2e7d32;
    padding: 15px;
    border-radius: 8px;
    border-left: 4px solid #4CAF50;
    margin: 20px 0;
}

/* Animation for data updates */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}