/* VeldStra Predictive Engine - Professional Trading Interface */

/* Custom Properties for Consistent Theming */
:root {
    --primary-blue: #1e40af;
    --secondary-gray: #374151;
    --accent-green: #10b981;
    --danger-red: #ef4444;
    --warning-yellow: #f59e0b;
    --dark-bg: #0f1419;
    --card-bg: #1f2937;
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --border-color: #374151;
    --hover-bg: #374151;
}

/* Base Styles */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--dark-bg);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Navigation Styles */
.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
    font-weight: 500;
    display: flex;
    align-items: center;
}

.nav-link:hover {
    color: var(--text-primary);
    background-color: var(--hover-bg);
}

.nav-link.active {
    color: var(--accent-green);
    background-color: rgba(16, 185, 129, 0.1);
}

.nav-link-mobile {
    color: var(--text-secondary);
    text-decoration: none;
    display: block;
    padding: 0.75rem 1rem;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
    font-weight: 500;
}

.nav-link-mobile:hover {
    color: var(--text-primary);
    background-color: var(--hover-bg);
}

.nav-link-mobile.active {
    color: var(--accent-green);
    background-color: rgba(16, 185, 129, 0.1);
}

/* Tab Content */
.tab-content {
    display: none;
    animation: fadeIn 0.3s ease-in-out;
}

.tab-content.active {
    display: block;
}

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

/* Stock Cards */
.stock-card {
    background: linear-gradient(135deg, var(--card-bg) 0%, #253341 100%);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    transition: all 0.3s ease;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.stock-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-green), #34d399);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.stock-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    border-color: var(--accent-green);
}

.stock-card:hover::before {
    opacity: 1;
}

.stock-symbol {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.stock-name {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1rem;
}

.stock-price {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.stock-change {
    font-size: 0.875rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

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

.stock-change.negative {
    color: var(--danger-red);
}

.prediction-score {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(16, 185, 129, 0.1);
    padding: 0.75rem;
    border-radius: 0.5rem;
    margin-top: 1rem;
}

.prediction-score.bearish {
    background: rgba(239, 68, 68, 0.1);
}

.confidence-badge {
    background: var(--accent-green);
    color: white;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: 0.375rem;
}

.confidence-badge.medium {
    background: var(--warning-yellow);
    color: var(--dark-bg);
}

.confidence-badge.low {
    background: var(--danger-red);
}

/* Chart Period Buttons */
.chart-period-btn {
    background: var(--hover-bg);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.chart-period-btn:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.chart-period-btn.active {
    background: var(--accent-green);
    color: white;
    border-color: var(--accent-green);
}

/* News Items */
.news-item {
    background: linear-gradient(135deg, var(--hover-bg) 0%, #2d3748 100%);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1rem;
    transition: all 0.2s ease;
    cursor: pointer;
}

.news-item:hover {
    background: var(--border-color);
    border-color: var(--accent-green);
}

.news-title {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.news-source {
    font-size: 0.75rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
}

.news-sentiment {
    display: inline-flex;
    align-items: center;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    margin-left: auto;
}

.sentiment-bullish {
    background: rgba(16, 185, 129, 0.2);
    color: var(--accent-green);
}

.sentiment-bearish {
    background: rgba(239, 68, 68, 0.2);
    color: var(--danger-red);
}

.sentiment-neutral {
    background: rgba(156, 163, 175, 0.2);
    color: var(--text-secondary);
}

/* Form Styles */
input[type="text"], 
input[type="number"], 
select, 
textarea {
    background: #374151;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 0.5rem;
    padding: 0.75rem;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    width: 100%;
}

input[type="text"]:focus, 
input[type="number"]:focus, 
select:focus, 
textarea:focus {
    outline: none;
    border-color: var(--accent-green);
    box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
}

/* Button Styles */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

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

.btn-primary:hover {
    background: #059669;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

.btn-secondary {
    background: var(--hover-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

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

/* Pulse Animation */
.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Loading Animation */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-color);
    border-top: 3px solid var(--accent-green);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Educational Cards */
.education-card {
    background: linear-gradient(135deg, var(--card-bg) 0%, #2d3748 100%);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.education-card:hover {
    border-color: var(--accent-green);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.education-card h3 {
    color: var(--accent-green);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.education-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.education-card .example {
    background: rgba(16, 185, 129, 0.1);
    border-left: 4px solid var(--accent-green);
    padding: 1rem;
    border-radius: 0 0.375rem 0.375rem 0;
    margin-top: 1rem;
}

/* Search Results */
.search-result-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 2rem;
    margin-top: 1.5rem;
}

.stock-header {
    display: flex;
    align-items: center;
    justify-content: between;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.stock-info h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.stock-info p {
    color: var(--text-secondary);
    margin: 0.25rem 0;
}

.price-info {
    text-align: right;
}

.current-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

.price-change {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0.25rem 0;
}

/* Comparison Grid */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.comparison-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.comparison-card.winner {
    border-color: var(--accent-green);
    background: linear-gradient(135deg, var(--card-bg) 0%, rgba(16, 185, 129, 0.1) 100%);
}

.comparison-card.winner::before {
    content: '👑';
    position: absolute;
    top: -10px;
    right: -10px;
    font-size: 1.5rem;
    background: var(--accent-green);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Responsive Design */
@media (max-width: 768px) {
    .comparison-grid {
        grid-template-columns: 1fr;
    }
    
    .stock-header {
        flex-direction: column;
        text-align: center;
    }
    
    .price-info {
        text-align: center;
        margin-top: 1rem;
    }
    
    .current-price {
        font-size: 2rem;
    }
}

/* Chart Container Styles */
.chart-container {
    position: relative;
    margin: 1rem 0;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--accent-green);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #059669;
}

/* Utility Classes */
.text-bullish {
    color: var(--accent-green) !important;
}

.text-bearish {
    color: var(--danger-red) !important;
}

.bg-bullish {
    background-color: rgba(16, 185, 129, 0.1) !important;
}

.bg-bearish {
    background-color: rgba(239, 68, 68, 0.1) !important;
}

/* Animations */
@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in {
    animation: slideIn 0.3s ease-out;
}

/* Focus styles for accessibility */
button:focus,
input:focus,
select:focus,
a:focus {
    outline: 2px solid var(--accent-green);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #ffffff;
        --text-secondary: #e5e5e5;
        --border-color: #ffffff;
    }
}