/* Modern Professional Stock Analyzer CSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #1a1a2e;
    --secondary-color: #16213e;
    --accent-color: #0f3460;
    --success-color: #00d4aa;
    --danger-color: #ff6b6b;
    --warning-color: #feca57;
    --text-primary: #ffffff;
    --text-secondary: #b8bcc8;
    --card-bg: #1e1e30;
    --border-color: #2a2a3e;
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-success: linear-gradient(135deg, #00d4aa 0%, #00b894 100%);
    --gradient-danger: linear-gradient(135deg, #ff6b6b 0%, #e55656 100%);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--primary-color);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: var(--gradient-primary);
    padding: 2rem 0;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Navigation */
.nav {
    background: var(--secondary-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.nav-container {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.nav-btn {
    background: transparent;
    border: 2px solid var(--accent-color);
    color: var(--text-primary);
    padding: 0.8rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-btn:hover, .nav-btn.active {
    background: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(15, 52, 96, 0.4);
}

/* Main Content */
.main-content {
    padding: 2rem 0;
}

.section {
    display: none;
    animation: fadeIn 0.5s ease-in-out;
}

.section.active {
    display: block;
}

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

/* Cards */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.company-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stock-symbol {
    background: var(--accent-color);
    color: var(--text-primary);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.price-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.current-price {
    font-size: 2rem;
    font-weight: 700;
    color: var(--success-color);
}

.price-change {
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    font-weight: 600;
    font-size: 0.9rem;
}

.price-change.positive {
    background: var(--gradient-success);
    color: white;
}

.price-change.negative {
    background: var(--gradient-danger);
    color: white;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 1.5rem;
}

.metric {
    text-align: center;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.metric-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.metric-value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Charts */
.chart-container {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
}

.chart-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--text-primary);
}

.chart-canvas {
    width: 100%;
    height: 400px;
}

/* Investment Allocation */
.allocation-container {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
    margin: 2rem 0;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
}

.risk-selector {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.risk-btn {
    background: transparent;
    border: 2px solid var(--border-color);
    color: var(--text-secondary);
    padding: 1rem 2rem;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    min-width: 120px;
}

.risk-btn.conservative {
    border-color: var(--success-color);
}

.risk-btn.moderate {
    border-color: var(--warning-color);
}

.risk-btn.aggressive {
    border-color: var(--danger-color);
}

.risk-btn.active.conservative {
    background: var(--success-color);
    color: white;
}

.risk-btn.active.moderate {
    background: var(--warning-color);
    color: white;
}

.risk-btn.active.aggressive {
    background: var(--danger-color);
    color: white;
}

.allocation-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.allocation-item {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.allocation-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.allocation-percentage {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--success-color);
}

.allocation-amount {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.allocation-rationale {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* News Section */
.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.news-item {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.news-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.news-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    line-height: 1.4;
}

.news-source {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.news-time {
    font-size: 0.8rem;
    color: var(--warning-color);
    margin-bottom: 1rem;
}

.news-text {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 1rem;
}

.news-link {
    color: var(--success-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.news-link:hover {
    color: var(--text-primary);
    text-decoration: underline;
}

/* Technical Indicators */
.indicators-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.indicator-card {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 1.5rem;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    text-align: center;
}

.indicator-title {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.indicator-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.indicator-signal {
    font-size: 0.9rem;
    font-weight: 600;
    padding: 0.3rem 0.8rem;
    border-radius: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.signal-buy {
    background: var(--gradient-success);
    color: white;
}

.signal-sell {
    background: var(--gradient-danger);
    color: white;
}

.signal-hold {
    background: var(--warning-color);
    color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header h1 {
        font-size: 2rem;
    }
    
    .nav-container {
        gap: 1rem;
    }
    
    .nav-btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    
    .allocation-grid {
        grid-template-columns: 1fr;
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .indicators-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    .header {
        padding: 1.5rem 0;
    }
    
    .header h1 {
        font-size: 1.8rem;
    }
    
    .card {
        padding: 1.5rem;
    }
    
    .current-price {
        font-size: 1.5rem;
    }
    
    .indicators-grid {
        grid-template-columns: 1fr;
    }
}

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

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--success-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Utility Classes */
.text-center { text-align: center; }
.text-success { color: var(--success-color); }
.text-danger { color: var(--danger-color); }
.text-warning { color: var(--warning-color); }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }

/* Print Styles */
@media print {
    body {
        background: white;
        color: black;
    }
    
    .nav, .header {
        display: none;
    }
    
    .card {
        background: white;
        border: 1px solid #ccc;
        box-shadow: none;
        page-break-inside: avoid;
        margin-bottom: 1rem;
    }
    
    .chart-container {
        background: white;
        border: 1px solid #ccc;
    }
}