* {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
            -webkit-tap-highlight-color: transparent;
            -webkit-font-smoothing: antialiased;
        }

        body {
            line-height: 1.5;
            color: #333;
            padding: 8px;
            max-width: 100%;
            margin: 0 auto;
            background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
            -webkit-text-size-adjust: 100%;
            text-rendering: optimizeLegibility;
            min-height: 100vh;
        }

        header {
            text-align: center;
            margin-bottom: 8px;
            padding: 8px 0;
        }

        h1 {
            color: #E63946;
            margin-bottom: 4px;
            font-size: clamp(1.5rem, 6vw, 2rem);
            font-weight: 700;
            text-shadow: 0 1px 1px rgba(0,0,0,0.05);
            line-height: 1.2;
        }

        header p {
            color: #457B9D;
            font-size: clamp(0.95rem, 4vw, 1.15rem);
            font-weight: 500;
        }

        .descrizione {
            background-color: white;
            padding: 12px;
            border-radius: 10px;
            margin: 0 auto 12px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
            width: 100%;
            max-width: 95%;
            text-align: center;
            border: 1px solid rgba(0,0,0,0.03);
        }

        .descrizione h2 {
            font-size: clamp(1.15rem, 4.5vw, 1.35rem);
            margin-bottom: 6px;
            color: #1D3557;
            font-weight: 600;
            line-height: 1.3;
        }

        .descrizione p {
            margin-bottom: 4px;
            font-size: clamp(0.9rem, 4vw, 1.05rem);
            color: #555;
            line-height: 1.5;
        }

        .video-container-vertical {
            width: 100%;
            max-width: 95%;
            margin: 0 auto 12px;
            background: #000;
            border-radius: 10px;
            overflow: hidden;
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
        }

        .video-wrapper {
            position: relative;
            padding-top: 177.78%; /* 16:9 Aspect Ratio */
        }

        .video-wrapper iframe {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            border: none;
        }

        .cta-button {
            display: block;
            width: 100%;
            max-width: 95%;
            margin: 0 auto 12px;
            padding: 12px;
            background: linear-gradient(135deg, #E63946 0%, #FF6B6B 100%);
            color: white;
            text-align: center;
            border-radius: 8px;
            font-weight: 700;
            text-decoration: none;
            font-size: clamp(0.95rem, 4.5vw, 1.15rem);
            box-shadow: 0 2px 6px rgba(230, 57, 70, 0.25);
            transition: all 0.15s ease-out;
            border: none;
            cursor: pointer;
            -webkit-appearance: none;
        }

        .cta-button:hover, .cta-button:active, .cta-button:focus {
            transform: translateY(-1px);
            box-shadow: 0 4px 10px rgba(230, 57, 70, 0.35);
            outline: none;
        }

        footer {
            text-align: center;
            margin-top: 12px;
            padding: 8px 0;
            color: #8e8e8e;
            font-size: clamp(0.75rem, 3.5vw, 0.85rem);
            border-top: 1px solid rgba(0,0,0,0.1);
        }

        /* Ottimizzazioni per dispositivi molto piccoli */
        @media (max-width: 320px) {
            body {
                padding: 6px;
            }

            .descrizione {
                padding: 10px;
                border-radius: 8px;
            }

            .cta-button {
                padding: 10px;
                border-radius: 6px;
            }
        }

        /* Ottimizzazioni per tablet e dispositivi più grandi */
        @media (min-width: 768px) {
            body {
                padding: 16px;
                max-width: 700px;
            }

            .descrizione {
                padding: 16px;
                margin-bottom: 16px;
                max-width: 400px;
            }

            .video-container-vertical {
                margin-bottom: 16px;
                max-width: 400px;
            }

            .cta-button {
                padding: 14px;
                margin-bottom: 16px;
                max-width: 400px;
            }

            footer {
                margin-top: 16px;
            }
        }