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

        body {
            margin: 0;
            padding: 0;
            background: linear-gradient(135deg, #e3f2fd, #ffffff);
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            font-family: 'Inter', sans-serif;
            color: #333;
            overflow: hidden;
        }

        .container {
            width: 100%;
            max-width: 400px;
            padding: 30px;
            border-radius: 20px;
            background: linear-gradient(145deg, #ffffff, #f1f4f9);
            box-shadow: 5px 5px 15px rgba(0, 0, 0, 0.1), -5px -5px 15px rgba(255, 255, 255, 0.8);
            text-align: center;
            position: relative;
        }

        h1 {
            font-size: 2.5em;
            font-weight: 700;
            color: #2c3e50;
            margin-bottom: 10px;
        }

        p {
            font-size: 1.1em;
            color: #7f8c8d;
            margin-bottom: 20px;
        }

        input {
            width: calc(100% - 20px);
            padding: 14px 10px;
            border-radius: 10px;
            border: none;
            background: #f9fafc;
            box-shadow: inset 3px 3px 8px rgba(0, 0, 0, 0.05), inset -3px -3px 8px rgba(255, 255, 255, 0.9);
            margin-bottom: 20px;
            font-size: 1.1em;
            color: #555;
            transition: all 0.3s ease;
        }

        input:focus {
            background: #ffffff;
            box-shadow: 0 0 0 2px #007BFF;
            outline: none;
        }

        button {
            width: 100%;
            padding: 14px;
            border-radius: 10px;
            border: none;
            background: linear-gradient(90deg, #007BFF, #0056b3);
            color: white;
            font-size: 1.2em;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 8px rgba(0, 123, 255, 0.4);
        }

        button:hover {
            background: linear-gradient(90deg, #0056b3, #007BFF);
            transform: translateY(-2px);
        }

        button:active {
            transform: translateY(2px);
        }

        .info {
            display: block;
            margin-top: 15px;
            font-size: 0.95em;
            text-decoration: none;
            color: #007BFF;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .info:hover {
            color: #0056b3;
        }

        .footer {
            margin-top: 20px;
            font-size: 0.9em;
            color: #aab2ba;
        }

        
        .background {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            z-index: -1;
            overflow: hidden;
        }

        .circle {
            position: absolute;
            border-radius: 50%;
            background: rgba(0, 123, 255, 0.2);
            animation: float 6s infinite ease-in-out;
        }

        .circle:nth-child(1) {
            width: 150px;
            height: 150px;
            top: 20%;
            left: 10%;
        }

        .circle:nth-child(2) {
            width: 200px;
            height: 200px;
            top: 40%;
            left: 80%;
        }

        .circle:nth-child(3) {
            width: 120px;
            height: 120px;
            top: 75%;
            left: 30%;
        }

        @keyframes float {
            0% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-20px);
            }
            100% {
                transform: translateY(0);
            }
        }