* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --primary: #7A5AF8;
            --accent: #FF6AD5;
            --secondary: #5B45E8;
            --neutral-50: #F9FAFB;
            --neutral-100: #F3F4F6;
            --neutral-600: #4B5563;
            --neutral-700: #374151;
            --neutral-800: #1F2937;
            --neutral-900: #111827;
            --spacing: 8px;
        }

        body {
            font-family: 'Inter', system-ui, -apple-system, sans-serif;
            line-height: 1.6;
            color: var(--neutral-800);
            padding-top: 80px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 calc(var(--spacing) * 3);
        }

        header {
            position: fixed;
            top: 0;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            backdrop-filter: blur(10px);
            z-index: 1000;
            padding: calc(var(--spacing) * 2) 0;
        }

        .header-content {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .logo {
            font-size: 1.8rem;
            font-weight: 800;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            text-decoration: none;
        }

        nav {
            display: flex;
            gap: calc(var(--spacing) * 4);
        }

        nav a {
            text-decoration: none;
            color: var(--neutral-600);
            font-weight: 500;
            transition: color 0.3s ease;
        }

        nav a:hover, nav a.active {
            color: var(--primary);
        }

        .page-hero {
            background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
            color: white;
            padding: calc(var(--spacing) * 12) 0;
            text-align: center;
        }

        .page-hero h1 {
            font-size: 3.5rem;
            font-weight: 900;
            margin-bottom: calc(var(--spacing) * 3);
        }

        .contact-section {
            padding: calc(var(--spacing) * 12) 0;
        }

        .contact-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: calc(var(--spacing) * 8);
        }

        .contact-form {
            background: white;
            padding: calc(var(--spacing) * 6);
            border-radius: calc(var(--spacing) * 3);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
        }

        .form-group {
            margin-bottom: calc(var(--spacing) * 3);
        }

        .form-group label {
            display: block;
            margin-bottom: calc(var(--spacing) * 1);
            font-weight: 600;
            color: var(--neutral-700);
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            padding: calc(var(--spacing) * 2);
            border: 2px solid var(--neutral-100);
            border-radius: calc(var(--spacing) * 1);
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            outline: none;
            border-color: var(--primary);
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary), var(--accent));
            color: white;
            border: none;
            padding: calc(var(--spacing) * 2) calc(var(--spacing) * 4);
            border-radius: calc(var(--spacing) * 1);
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: transform 0.3s ease;
            width: 100%;
        }

        .btn-primary:hover {
            transform: translateY(-2px);
        }

        .contact-info {
            background: var(--neutral-50);
            padding: calc(var(--spacing) * 6);
            border-radius: calc(var(--spacing) * 3);
        }

        .contact-info h3 {
            font-size: 1.5rem;
            font-weight: 700;
            margin-bottom: calc(var(--spacing) * 3);
            color: var(--primary);
        }

        .contact-item {
            margin-bottom: calc(var(--spacing) * 4);
            padding-bottom: calc(var(--spacing) * 4);
            border-bottom: 1px solid var(--neutral-100);
        }

        .contact-item:last-child {
            border-bottom: none;
            margin-bottom: 0;
            padding-bottom: 0;
        }

        .contact-item h4 {
            font-weight: 600;
            color: var(--neutral-800);
            margin-bottom: calc(var(--spacing) * 1);
        }

        .contact-item p {
            color: var(--neutral-600);
            line-height: 1.6;
        }

        .amazon-link {
            text-align: center;
            margin-top: calc(var(--spacing) * 6);
        }

        .popup {
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: white;
            padding: calc(var(--spacing) * 4);
            border-radius: calc(var(--spacing) * 2);
            box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
            z-index: 1002;
            display: none;
            text-align: center;
        }

        .popup-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(0, 0, 0, 0.5);
            z-index: 1001;
            display: none;
        }

        footer {
            background: var(--neutral-900);
            color: white;
            padding: calc(var(--spacing) * 8) 0 calc(var(--spacing) * 4);
        }

        .footer-content {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: calc(var(--spacing) * 6);
            margin-bottom: calc(var(--spacing) * 6);
        }

        .footer-section h3 {
            margin-bottom: calc(var(--spacing) * 2);
            color: var(--accent);
        }

        .footer-section a {
            color: #9CA3AF;
            text-decoration: none;
            transition: color 0.3s ease;
        }

        .footer-section a:hover {
            color: var(--accent);
        }

        .footer-bottom {
            border-top: 1px solid #374151;
            padding-top: calc(var(--spacing) * 4);
            text-align: center;
            color: #9CA3AF;
        }

        @media (max-width: 768px) {
            nav { display: none; }
            .burger { display: flex !important; }
            .page-hero h1 { font-size: 2.5rem; }
            .contact-grid { grid-template-columns: 1fr; }
        }

        .burger {
            display: none;
            flex-direction: column;
            cursor: pointer;
            gap: 4px;
        }

        .burger span {
            width: 25px;
            height: 3px;
            background: var(--primary);
        }

        .mobile-nav {
            display: none;
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background: rgba(255, 255, 255, 0.98);
            backdrop-filter: blur(10px);
            z-index: 999;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: calc(var(--spacing) * 4);
        }

        .mobile-nav a {
            font-size: 1.5rem;
            text-decoration: none;
            color: var(--neutral-600);
            font-weight: 600;
        }