body {
            font-family: 'Roboto', Arial, sans-serif;
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            margin: 0;
            background-color: #FFDD30;
            color: #202124;
            background-image: url('../img/stars-bg-white.svg');
            background-size: contain;
        }
        .download-card {
            width: 80%;
            max-width: 560px;
            background: #FFFBD6;
            border-radius: 12px;
            box-shadow: 0 1px 2px 0 rgba(60,64,67,0.3), 0 2px 6px 2px rgba(60,64,67,0.15);
            padding: 24px;
            text-align: center;
        }
        .file-preview {
            width: 120px;
            height: 120px;
            margin: 0 auto 20px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
        }
        .file-preview img { max-width: 100%; max-height: 100%; object-fit: contain; }
        .file-icon { font-size: 48px; color: #5f6368; }
        .file-info { margin-bottom: 18px; }
        .file-name { font-size: 18px; font-weight: 600; margin-bottom: 4px; }
        .file-size { color: #5f6368; font-size: 14px; margin-bottom: 12px; }

        /* Grade de botões por plataforma */
        .platforms {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
            gap: 12px;
            margin-top: 12px;
            margin-bottom: 16px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            width: 90%;
            background-color: #1a73e8;
            color: white;
            border: none;
            padding: 10px 14px;
            font-size: 14px;
            font-weight: 600;
            border-radius: 8px;
            cursor: pointer;
            transition: transform .04s ease, box-shadow .3s ease, background-color .3s ease;
            text-decoration: none;
        }
        .btn:hover { box-shadow: 0 1px 2px 0 rgba(26,115,232,0.45), 0 1px 3px 1px rgba(26,115,232,0.3); }
        .btn:active { transform: translateY(1px); }

        /* Variações por plataforma (cores aproximadas) */
        .btn-direct { background-color: #1a73e8; }   /* Azul Google */
        .btn-gdrive { background-color: #0F9D58; }   /* Verde Drive */
        .btn-mega   { background-color: #D9272E; }   /* Vermelho MEGA */
        .btn-dropbox{ background-color: #0061FF; }   /* Azul Dropbox */

        .btn svg { width: 18px; height: 18px; }

        .hint {
            color: #5f6368;
            font-size: 12px;
            margin-top: -2px;
            margin-bottom: 16px;
        }

        .secondary-link {
            color: #1a73e8;
            text-decoration: none;
            font-size: 14px;
        }
        .secondary-link:hover { text-decoration: underline; }