:root {
            --primary-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
            --surface-color: #ffffff;
            --bg-color: #f8fafc;
            --text-main: #0f172a;
            --text-muted: #64748b;
            --card-border: rgba(226, 232, 240, 0.8);
        }

        body {
            font-family: 'Plus Jakarta Sans', sans-serif;
            background-color: var(--bg-color);
            color: var(--text-main);
            overflow-x: hidden;
        }

        /* --- Hero Section --- */
        .hero-section {
            padding: 120px 0 80px;
            position: relative;
            background: radial-gradient(circle at top right, rgba(99, 102, 241, 0.15), transparent 40%),
                        radial-gradient(circle at bottom left, rgba(168, 85, 247, 0.1), transparent 40%);
        }

        .display-title {
            font-weight: 800;
            letter-spacing: -1px;
            background: var(--primary-gradient);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            margin-bottom: 1.5rem;
        }

        /* Modern Search Input */
        .search-wrapper {
            position: relative;
            max-width: 500px;
            margin: 0 auto;
        }
        
        .modern-search {
            border-radius: 50px;
            padding: 18px 30px;
            border: 1px solid #e2e8f0;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
            transition: all 0.3s ease;
            font-size: 1rem;
        }
        
        .modern-search:focus {
            box-shadow: 0 10px 15px -3px rgba(99, 102, 241, 0.2);
            border-color: #6366f1;
            outline: none;
        }

        .search-icon-btn {
            position: absolute;
            right: 8px;
            top: 8px;
            background: var(--primary-gradient);
            border: none;
            width: 45px;
            height: 45px;
            border-radius: 50%;
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: transform 0.2s;
        }
        
        .search-icon-btn:hover {
            transform: scale(1.05);
        }

        /* --- Tool Cards --- */
        .tool-card {
            background: var(--surface-color);
            border: 1px solid var(--card-border);
            border-radius: 24px;
            padding: 2rem;
            height: 100%;
            transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            position: relative;
            overflow: hidden;
            display: flex;
            flex-direction: column;
        }

        .tool-card:hover {
            transform: translateY(-5px);
            box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
            border-color: #6366f1;
        }

        /* Subtle glow effect on hover */
        .tool-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: var(--primary-gradient);
            opacity: 0;
            transition: opacity 0.3s;
        }
        
        .tool-card:hover::before {
            opacity: 1;
        }

        .card-icon {
            width: 60px;
            height: 60px;
            background: #f1f5f9;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.75rem;
            color: #6366f1;
            margin-bottom: 1.5rem;
            transition: 0.3s;
        }

        .tool-card:hover .card-icon {
            background: #6366f1;
            color: white;
        }

        .card-title {
            font-weight: 700;
            font-size: 1.25rem;
            margin-bottom: 0.75rem;
        }

        .card-desc {
            color: var(--text-muted);
            font-size: 0.95rem;
            line-height: 1.6;
            flex-grow: 1;
        }

        .card-badge {
            font-size: 0.75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            display: inline-block;
            margin-bottom: 1rem;
        }
        
        .badge-seo { background: #ecfdf5; color: #059669; }
        .badge-utility { background: #eff6ff; color: #2563eb; }
        .badge-health { background: #fef2f2; color: #dc2626; }



        /* Google Preview Specific Styles for Modal */
        .google-preview-card {
            box-shadow: 0 1px 6px rgba(32, 33, 36, 0.1);
            font-family: Arial, sans-serif;
        }
        .google-preview-card:hover h3 {
            text-decoration: underline;
        }