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

:root {
    --primary-color: #2563eb;
    --secondary-color: #10b981;
    --danger-color: #ef4444;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-color: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

/* Header Styles */
header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
}

header h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* Section Styles */
section {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

section h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

/* News Feed Styles */
.news-feed {
    display: grid;
    gap: 1rem;
    max-height: 400px;
    overflow-y: auto;
}

.news-item {
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.news-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.news-item h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.news-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.news-item .news-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.loading, .empty-message {
    text-align: center;
    color: var(--text-secondary);
    padding: 2rem;
    font-style: italic;
}

/* Stock Selection Styles */
.stock-input-group {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.autocomplete-wrapper {
    position: relative;
    flex: 1;
}

.stock-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.stock-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.autocomplete-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: white;
    border: 2px solid var(--border-color);
    border-top: none;
    border-radius: 0 0 8px 8px;
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
    box-shadow: var(--shadow-lg);
    display: none;
    margin-top: -2px;
}

.suggestion-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: background-color 0.2s;
    border-bottom: 1px solid var(--border-color);
    font-size: 1rem;
    color: var(--text-color);
}

.suggestion-item:last-child {
    border-bottom: none;
}

.suggestion-item:hover,
.suggestion-item.highlighted {
    background-color: var(--bg-color);
    color: var(--primary-color);
}

.suggestion-item strong {
    font-weight: 700;
    color: var(--primary-color);
}

/* Autocomplete dropdown scrollbar */
.autocomplete-dropdown::-webkit-scrollbar {
    width: 8px;
}

.autocomplete-dropdown::-webkit-scrollbar-track {
    background: var(--bg-color);
    border-radius: 4px;
}

.autocomplete-dropdown::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.autocomplete-dropdown::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

.selected-stocks {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.stock-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
}

.stock-tag .remove-btn {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.stock-tag .remove-btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

/* Button Styles */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: #1d4ed8;
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background-color: #059669;
    transform: translateY(-1px);
    box-shadow: var(--shadow);
}

/* Forecast Section Styles */
.forecast-controls {
    display: flex;
    gap: 1rem;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.forecast-results {
    display: grid;
    gap: 2rem;
}

.stock-forecast-group {
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    background-color: white;
}

/* Tabs Styles */
.tabs-container {
    margin-top: 1rem;
}

.tabs-nav {
    display: flex;
    gap: 0.5rem;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: -2px;
}

.tab-btn:hover {
    color: var(--primary-color);
    background-color: var(--bg-color);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    font-weight: 600;
}

.tabs-content {
    position: relative;
}

.tab-panel {
    display: none !important;
    visibility: hidden;
}

.tab-panel.active {
    display: block !important;
    visibility: visible !important;
    animation: fadeIn 0.3s ease-in;
}

.articles-panel-content {
    width: 100%;
    min-height: 200px;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Articles Tab Styles */
.articles-tab-content {
    padding: 1rem 0;
}

.tab-section-header {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.article-category {
    margin-bottom: 2rem;
    padding: 1rem;
    background-color: var(--bg-color);
    border-radius: 8px;
}

.category-header {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.category-header.positive {
    color: var(--secondary-color);
    border-bottom-color: var(--secondary-color);
}

.category-header.negative {
    color: var(--danger-color);
    border-bottom-color: var(--danger-color);
}

.category-header.neutral {
    color: var(--text-secondary);
    border-bottom-color: var(--border-color);
}

.article-count {
    font-size: 0.9rem;
    font-weight: normal;
    color: var(--text-secondary);
}

.articles-list {
    display: grid;
    gap: 1rem;
}

.article-item {
    padding: 1rem;
    background-color: white;
    border-radius: 8px;
    border-left: 4px solid var(--border-color);
    transition: all 0.2s;
}

.article-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.article-item.positive {
    border-left-color: var(--secondary-color);
}

.article-item.negative {
    border-left-color: var(--danger-color);
}

.article-item.neutral {
    border-left-color: var(--text-secondary);
}

.article-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

.article-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
    line-height: 1.6;
}

.article-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.article-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

.article-link:hover {
    color: #1d4ed8;
    text-decoration: underline;
}

/* Chart Container Styles */
.chart-container {
    position: relative;
    width: 100%;
    height: 400px;
    padding: 1rem;
    background-color: white;
    border-radius: 8px;
    margin-top: 1rem;
}

.chart-container canvas {
    cursor: pointer;
}

@media (max-width: 768px) {
    .chart-container {
        height: 300px;
        padding: 0.5rem;
    }
}

.stock-header {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.75rem;
}

.stock-header .stock-symbol {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: 6px;
    font-weight: 700;
    font-size: 1.2rem;
}

.forecasts-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.forecast-card {
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background-color: var(--bg-color);
    transition: transform 0.2s, box-shadow 0.2s;
}

.forecast-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.forecast-card h3 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.forecast-card .stock-symbol {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: 4px;
    font-weight: 600;
    margin-right: 0.5rem;
}

.forecast-metrics {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.metric {
    padding: 1rem;
    background-color: white;
    border-radius: 8px;
    text-align: center;
}

.metric-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.metric-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-color);
}

.metric-value.positive {
    color: var(--secondary-color);
}

.metric-value.negative {
    color: var(--danger-color);
}

/* Footer Styles */
footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .stock-input-group {
        flex-direction: column;
    }

    .forecast-controls {
        justify-content: center;
    }

    .forecasts-container {
        grid-template-columns: 1fr;
    }

    .stock-header {
        font-size: 1.3rem;
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

    .tabs-nav {
        flex-direction: column;
        gap: 0.25rem;
    }

    .tab-btn {
        width: 100%;
        text-align: left;
        border-bottom: none;
        border-left: 3px solid transparent;
        padding-left: 1rem;
    }

    .tab-btn.active {
        border-bottom: none;
        border-left-color: var(--primary-color);
        background-color: var(--bg-color);
    }

    .article-meta {
        flex-direction: column;
        gap: 0.25rem;
    }
}

/* Scrollbar Styles */
.news-feed::-webkit-scrollbar {
    width: 8px;
}

.news-feed::-webkit-scrollbar-track {
    background: var(--bg-color);
    border-radius: 4px;
}

.news-feed::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.news-feed::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}