* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        
        :root {
            --color-primary: #3B82F6;
            --color-primary-dark: #2563EB;
            --color-success: #10B981;
            --color-warning: #F59E0B;
            --color-danger: #EF4444;
            --color-team1: #4F46E5;
            --color-team2: #7C3AED;
            
            --color-background: #FFFFFF;
            --color-surface: #F9FAFB;
            --color-card: #FFFFFF;
            --color-border: #E5E7EB;
            --color-text-primary: #111827;
            --color-text-secondary: #6B7280;
            --color-text-tertiary: #9CA3AF;
            
            --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
            --font-mono: 'JetBrains Mono', monospace;
            
            --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
            --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
            --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
            --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
            
            --radius: 8px;
            --radius-sm: 6px;
            --radius-lg: 12px;
        }
        
        body {
            font-family: var(--font-sans);
            background: var(--color-background);
            color: var(--color-text-primary);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }
        
        /* Header */
        .header {
            background: var(--color-card);
            border-bottom: 1px solid var(--color-border);
            position: sticky;
            top: 0;
            z-index: 100;
            box-shadow: var(--shadow-sm);
        }
        
        .header-container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 1rem 1.5rem;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
        }
        
        .logo {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--color-primary);
            text-decoration: none;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }
        
        .logo-icon {
            font-size: 1.75rem;
        }
        
        .nav {
            display: flex;
            gap: 2rem;
            align-items: center;
        }
        
        .nav-link {
            color: var(--color-text-secondary);
            text-decoration: none;
            font-weight: 500;
            font-size: 0.9375rem;
            transition: color 0.2s;
        }
        
        .nav-link:hover {
            color: var(--color-primary);
        }
        
        .nav-link.active {
            color: var(--color-primary);
        }
        
        .btn {
            padding: 0.625rem 1.25rem;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9375rem;
            cursor: pointer;
            border: none;
            transition: all 0.2s;
            font-family: var(--font-sans);
            text-decoration: none;
            display: inline-block;
        }
        
        .btn-primary {
            background: var(--color-primary);
            color: white;
        }
        
        .btn-primary:hover {
            background: var(--color-primary-dark);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }
        
        .btn-secondary {
            background: var(--color-surface);
            color: var(--color-text-primary);
            border: 1px solid var(--color-border);
        }
        
        .btn-secondary:hover {
            background: #F3F4F6;
            border-color: #D1D5DB;
        }
        
        .btn-sm {
            padding: 0.5rem 1rem;
            font-size: 0.875rem;
        }
        
        .btn:active {
            transform: translateY(0);
        }
        
        /* Hero Section */
        .hero {
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 4rem 1.5rem 3rem;
            text-align: center;
        }
        
        .hero h1 {
            font-size: 3rem;
            font-weight: 700;
            margin-bottom: 1rem;
            line-height: 1.2;
        }
        
        .hero p {
            font-size: 1.25rem;
            opacity: 0.95;
            max-width: 600px;
            margin: 0 auto;
        }
        
        /* Main Container */
        .container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 3rem 1.5rem;
        }
        
        /* Settings Panel */
        .settings-panel {
            background: var(--color-card);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            margin-bottom: 2rem;
            box-shadow: var(--shadow-sm);
        }
        
        .settings-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 1.5rem;
        }
        
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }
        
        .form-label {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-text-primary);
        }
        
        .form-select {
            padding: 0.625rem 0.875rem;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            font-size: 0.9375rem;
            font-family: var(--font-sans);
            background: white;
            cursor: pointer;
            transition: all 0.2s;
        }
        
        .form-select:hover {
            border-color: #D1D5DB;
        }
        
        .form-select:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
        }
        
        /* Trade Calculator */
        .calculator-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 2rem;
            margin-bottom: 2rem;
        }
        
        .team-panel {
            background: var(--color-card);
            border: 2px solid var(--color-border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow-md);
        }
        
        .team-panel.team1 {
            border-top: 3px solid var(--color-team1);
        }
        
        .team-panel.team2 {
            border-top: 3px solid var(--color-team2);
        }
        
        .team-header {
            padding: 1.25rem 1.5rem;
            border-bottom: 1px solid var(--color-border);
            background: var(--color-surface);
        }
        
        .team-header h3 {
            font-size: 1.125rem;
            font-weight: 600;
            color: var(--color-text-primary);
        }
        
        .team-value {
            font-size: 2rem;
            font-weight: 700;
            font-family: var(--font-mono);
            margin-top: 0.5rem;
        }
        
        .team1 .team-value {
            color: var(--color-team1);
        }
        
        .team2 .team-value {
            color: var(--color-team2);
        }
        
        .team-body {
            padding: 1.5rem;
        }
        
        .player-search {
            position: relative;
            margin-bottom: 1.5rem;
        }
        
        .player-search input {
            width: 100%;
            padding: 0.75rem 1rem;
            padding-right: 2.5rem;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            font-size: 0.9375rem;
            font-family: var(--font-sans);
            transition: all 0.2s;
        }
        
        .player-search input:focus {
            outline: none;
            border-color: var(--color-primary);
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
        }
        
        .search-icon {
            position: absolute;
            right: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--color-text-tertiary);
            pointer-events: none;
        }
        
        .dropdown {
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: white;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            box-shadow: var(--shadow-lg);
            max-height: 300px;
            overflow-y: auto;
            z-index: 10;
            margin-top: 0.25rem;
            display: none;
        }
        
        .dropdown.active {
            display: block;
        }
        
        .dropdown-item {
            padding: 0.75rem 1rem;
            cursor: pointer;
            transition: background 0.15s;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        
        .dropdown-item:hover {
            background: var(--color-surface);
        }
        
        .player-name {
            font-weight: 500;
        }
        
        .player-position {
            display: inline-block;
            padding: 0.125rem 0.5rem;
            border-radius: 0.25rem;
            font-size: 0.75rem;
            font-weight: 600;
            margin-left: 0.5rem;
        }
        
        .position-QB {
            background: #DBEAFE;
            color: #1E40AF;
        }
        
        .position-RB {
            background: #D1FAE5;
            color: #065F46;
        }
        
        .position-WR {
            background: #FED7AA;
            color: #9A3412;
        }
        
        .position-TE {
            background: #E9D5FF;
            color: #6B21A8;
        }
        
        .position-PICK {
            background: #F3F4F6;
            color: #374151;
        }
        
        .player-value {
            font-family: var(--font-mono);
            font-weight: 600;
            color: var(--color-text-secondary);
        }
        
        .selected-items {
            min-height: 200px;
        }
        
        .selected-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0.75rem 1rem;
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: var(--radius-sm);
            margin-bottom: 0.75rem;
            transition: all 0.2s;
        }
        
        .selected-item:hover {
            background: #F3F4F6;
            box-shadow: var(--shadow-sm);
        }
        
        .item-info {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        
        .item-actions {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        
        .remove-btn {
            background: none;
            border: none;
            color: var(--color-text-tertiary);
            cursor: pointer;
            font-size: 1.25rem;
            padding: 0.25rem;
            line-height: 1;
            transition: color 0.2s;
        }
        
        .remove-btn:hover {
            color: var(--color-danger);
        }
        
        .empty-state {
            text-align: center;
            padding: 3rem 1.5rem;
            color: var(--color-text-tertiary);
        }
        
        .empty-state-icon {
            font-size: 3rem;
            margin-bottom: 1rem;
            opacity: 0.5;
        }
        
        /* Trade Result */
        .trade-result {
            background: var(--color-card);
            border: 2px solid var(--color-border);
            border-radius: var(--radius-lg);
            padding: 2rem;
            text-align: center;
            margin-bottom: 2rem;
            box-shadow: var(--shadow-md);
        }
        
        .result-label {
            font-size: 0.875rem;
            font-weight: 600;
            color: var(--color-text-secondary);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-bottom: 0.5rem;
        }
        
        .result-verdict {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: 1rem;
        }
        
        .result-fair {
            color: var(--color-success);
        }
        
        .result-slight {
            color: var(--color-warning);
        }
        
        .result-unfair {
            color: var(--color-danger);
        }
        
        .result-details {
            font-size: 0.9375rem;
            color: var(--color-text-secondary);
            margin-bottom: 1.5rem;
        }
        
        .action-buttons {
            display: flex;
            gap: 1rem;
            justify-content: center;
            flex-wrap: wrap;
        }
        
        /* Article Section */
        .article-section {
            max-width: 800px;
            margin: 4rem auto 0;
            padding-top: 3rem;
            border-top: 1px solid var(--color-border);
        }
        
        .article-section h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 1rem;
            color: var(--color-text-primary);
        }
        
        .article-section h3 {
            font-size: 1.5rem;
            font-weight: 600;
            margin-top: 2rem;
            margin-bottom: 1rem;
            color: var(--color-text-primary);
        }
        
        .article-section p {
            margin-bottom: 1.25rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }
        
        .article-section ul {
            margin-bottom: 1.25rem;
            padding-left: 2rem;
        }
        
        .article-section li {
            margin-bottom: 0.5rem;
            color: var(--color-text-secondary);
            line-height: 1.8;
        }
        
        /* Footer */
        .footer {
            background: var(--color-surface);
            border-top: 1px solid var(--color-border);
            padding: 3rem 1.5rem 2rem;
            margin-top: 4rem;
        }
        
        .footer-container {
            max-width: 1280px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 3rem;
        }
        
        .footer-section h4 {
            font-size: 1rem;
            font-weight: 600;
            margin-bottom: 1rem;
            color: var(--color-text-primary);
        }
        
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }
        
        .footer-link {
            color: var(--color-text-secondary);
            text-decoration: none;
            font-size: 0.9375rem;
            transition: color 0.2s;
        }
        
        .footer-link:hover {
            color: var(--color-primary);
        }
        
        .footer-bottom {
            max-width: 1280px;
            margin: 2rem auto 0;
            padding-top: 2rem;
            border-top: 1px solid var(--color-border);
            text-align: center;
            color: var(--color-text-tertiary);
            font-size: 0.875rem;
        }
        
        /* Mobile Menu */
        .mobile-menu-btn {
            display: none;
            background: none;
            border: none;
            font-size: 1.5rem;
            cursor: pointer;
            color: var(--color-text-primary);
        }
        
        /* Responsive */
        @media (max-width: 768px) {
            .hero h1 {
                font-size: 2rem;
            }
            
            .hero p {
                font-size: 1rem;
            }
            
            .nav {
                display: none;
            }
            
            .mobile-menu-btn {
                display: block;
            }
            
            .calculator-grid {
                grid-template-columns: 1fr;
                gap: 1.5rem;
            }
            
            .settings-grid {
                grid-template-columns: 1fr;
            }
            
            .action-buttons {
                flex-direction: column;
            }
            
            .btn {
                width: 100%;
            }
        }
        
        @media (max-width: 480px) {
            .container {
                padding: 2rem 1rem;
            }
            
            .hero {
                padding: 3rem 1rem 2rem;
            }
            
            .team-value {
                font-size: 1.5rem;
            }
        }