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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #0061ff 0%, #60adff 100%);
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 10px; //20px;
        }

        .container {
            background: white;
            border-radius: 20px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
            max-width: 860px; //700px;
            width: 100%;
            padding: 50px 40px;
            animation: fadeIn 0.6s ease-in;
        }

        @keyframes fadeIn {
            from {
                opacity: 0;
                transform: translateY(-20px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        header {
            text-align: center;
            margin-bottom: 40px;
        }

        .dropbox-icon {
            font-size: 70px;
            color: #0061ff;
            margin-bottom: 20px;
            animation: float 3s ease-in-out infinite;
        }

        @keyframes float {
            0%, 100% {
                transform: translateY(0px);
            }
            50% {
                transform: translateY(-10px);
            }
        }

        h1 {
            color: #1e293b;
            font-size: 28px;
            margin-bottom: 12px;
            font-weight: 700;
        }

        p {
            color: #64748b;
            font-size: 16px;
            line-height: 1.6;
        }

        .form-group {
            margin-bottom: 25px;
        }

        input[type="url"],
        input[type="text"] {
            width: 100%;
            padding: 16px 20px;
            border: 2px solid #e2e8f0;
            border-radius: 12px;
            font-size: 15px;
            transition: all 0.3s ease;
            outline: none;
            background: #f8fafc;
        }

        input[type="url"]:focus,
        input[type="text"]:focus {
            border-color: #0061ff;
            background: white;
            box-shadow: 0 0 0 4px rgba(0, 97, 255, 0.1);
        }

        input::placeholder {
            color: #94a3b8;
        }

        button {
            width: 100%;
            padding: 18px;
            background: linear-gradient(135deg, #0061ff 0%, #0052d6 100%);
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 17px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 15px rgba(0, 97, 255, 0.4);
        }

        button:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 97, 255, 0.5);
        }

        button:active {
            transform: translateY(0);
        }

        footer {
            margin-top: 40px;
            text-align: center;
            color: white;
            font-size: 16px;
            opacity: 0.9;
        }

        @media (max-width: 640px) {
            .container {
                padding: 40px 25px;
            }

            h1 {
                font-size: 24px;
            }

            p {
                font-size: 14px;
            }

            .dropbox-icon {
                font-size: 60px;
            }
        }

        @media (max-width: 480px) {
            .container {
                padding: 30px 20px;
            }

            h1 {
                font-size: 22px;
            }

            input[type="url"],
            input[type="text"] {
                padding: 14px 16px;
                font-size: 14px;
            }

            button {
                padding: 16px;
                font-size: 16px;
            }
        }