:root {
            --bg: #eceae4;
            --card-bg: rgba(255, 255, 255, 0.7);
            --accent: #000;
            --text-gold: #d4af37;
        }

        * { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

        body {
            font-family: 'Inter', sans-serif;
            background: radial-gradient(circle at center, #f5f4f0 0%, #e2e0d8 100%);
            margin: 0;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: flex-start;
            min-height: 100vh;
            padding-top: 40px;
            overflow-x: hidden;
        }

        .glass-card {
            background: var(--card-bg);
            backdrop-filter: blur(15px);
            -webkit-backdrop-filter: blur(15px);
            border: 1px solid rgba(255, 255, 255, 0.4);
            border-radius: 40px;
            padding: 30px;
            width: 90%;
            max-width: 380px;
            box-shadow: 0 20px 50px rgba(0, 0, 0, 0.08);
            text-align: center;
            animation: fadeIn 0.8s ease-out;
        }

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

        .image-container {
            width: 100%;
            aspect-ratio: 9 / 16;
            border-radius: 20px;
            overflow: hidden;
            margin-bottom: 30px;
            box-shadow: 0 8px 20px rgba(0,0,0,0.15);
        }

        .door-image { width: 100%; height: 100%; object-fit: cover; display: block; }

        .btn-open {
            background: var(--accent);
            color: #fff;
            border: none;
            width: 100%;
            padding: 22px;
            border-radius: 20px;
            font-size: 14px;
            font-weight: 500;
            letter-spacing: 3px;
            text-transform: uppercase;
            cursor: pointer;
            transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 15px;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
            position: relative;
        }

        .btn-open:active { transform: scale(0.95); background: #000; }
        .btn-open svg { width: 18px; height: 18px; fill: none; stroke: var(--text-gold); stroke-width: 2; }
    
body { padding-bottom: 24px; font-family: Inter, Arial, sans-serif; }
.btn-open:disabled { opacity: 1; cursor: wait; background: #000; }