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

        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            background: linear-gradient(135deg, #e8e8e8 0%, #f5f5f5 100%);
            display: flex;
            justify-content: center;
            align-items: center;
            min-height: 100vh;
            overflow: hidden;
        }

        .login-container {
            position: relative;
            width: 450px;
            height: 450px;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .circles-wrapper {
            position: absolute;
            width: 100%;
            height: 100%;
            animation: rotate 20s linear infinite;
        }

        .circle {
            position: absolute;
            width: 100%;
            height: 100%;
            border-radius: 50%;
            border: 5px solid;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
        }

        .circle:nth-child(1) {
            border-color: #e91e63;
            animation: pulse1 3s ease-in-out infinite;
        }

        .circle:nth-child(2) {
            border-color: #ffd700;
            animation: pulse2 3s ease-in-out infinite 0.5s;
        }

        .circle:nth-child(3) {
            border-color: #00bcd4;
            animation: pulse3 3s ease-in-out infinite 1s;
        }

        .circle:nth-child(4) {
            border-color: #9ccc65;
            animation: pulse4 3s ease-in-out infinite 1.5s;
        }

        @keyframes rotate {
            0% {
                transform: rotate(0deg);
            }

            100% {
                transform: rotate(360deg);
            }
        }

        @keyframes pulse1 {
            0% {
                transform: translate(-50%, -50%) scale(0.95);
                opacity: 0.8;
                border-radius: 45% 55% 48% 52% / 42% 48% 52% 58%;
            }

            25% {
                transform: translate(-50%, -50%) scale(1.02);
                opacity: 0.9;
                border-radius: 58% 42% 55% 45% / 48% 62% 38% 52%;
            }

            50% {
                transform: translate(-50%, -50%) scale(1.05);
                opacity: 1;
                border-radius: 52% 48% 62% 38% / 53% 45% 55% 47%;
            }

            75% {
                transform: translate(-50%, -50%) scale(0.98);
                opacity: 0.9;
                border-radius: 38% 62% 45% 55% / 58% 52% 48% 42%;
            }

            100% {
                transform: translate(-50%, -50%) scale(0.95);
                opacity: 0.8;
                border-radius: 45% 55% 48% 52% / 42% 48% 52% 58%;
            }
        }

        @keyframes pulse2 {
            0% {
                transform: translate(-50%, -50%) scale(0.92) rotate(10deg);
                opacity: 0.8;
                border-radius: 55% 45% 58% 42% / 52% 48% 52% 48%;
            }

            25% {
                transform: translate(-50%, -50%) scale(1.0) rotate(10deg);
                opacity: 0.9;
                border-radius: 42% 58% 45% 55% / 48% 60% 40% 52%;
            }

            50% {
                transform: translate(-50%, -50%) scale(1.08) rotate(10deg);
                opacity: 1;
                border-radius: 48% 52% 40% 60% / 55% 45% 55% 45%;
            }

            75% {
                transform: translate(-50%, -50%) scale(1.0) rotate(10deg);
                opacity: 0.9;
                border-radius: 60% 40% 52% 48% / 42% 58% 42% 58%;
            }

            100% {
                transform: translate(-50%, -50%) scale(0.92) rotate(10deg);
                opacity: 0.8;
                border-radius: 55% 45% 58% 42% / 52% 48% 52% 48%;
            }
        }

        @keyframes pulse3 {
            0% {
                transform: translate(-50%, -50%) scale(0.98) rotate(-10deg);
                opacity: 0.8;
                border-radius: 40% 60% 52% 48% / 45% 55% 45% 55%;
            }

            25% {
                transform: translate(-50%, -50%) scale(1.05) rotate(-10deg);
                opacity: 0.9;
                border-radius: 52% 48% 45% 55% / 58% 42% 58% 42%;
            }

            50% {
                transform: translate(-50%, -50%) scale(1.02) rotate(-10deg);
                opacity: 1;
                border-radius: 60% 40% 58% 42% / 52% 48% 52% 48%;
            }

            75% {
                transform: translate(-50%, -50%) scale(0.95) rotate(-10deg);
                opacity: 0.9;
                border-radius: 45% 55% 42% 58% / 40% 60% 40% 60%;
            }

            100% {
                transform: translate(-50%, -50%) scale(0.98) rotate(-10deg);
                opacity: 0.8;
                border-radius: 40% 60% 52% 48% / 45% 55% 45% 55%;
            }
        }

        @keyframes pulse4 {
            0% {
                transform: translate(-50%, -50%) scale(1) rotate(5deg);
                opacity: 0.8;
                border-radius: 48% 52% 55% 45% / 50% 50% 50% 50%;
            }

            25% {
                transform: translate(-50%, -50%) scale(1.08) rotate(5deg);
                opacity: 0.9;
                border-radius: 62% 38% 48% 52% / 45% 55% 45% 55%;
            }

            50% {
                transform: translate(-50%, -50%) scale(1.1) rotate(5deg);
                opacity: 1;
                border-radius: 50% 50% 38% 62% / 58% 42% 58% 42%;
            }

            75% {
                transform: translate(-50%, -50%) scale(1.05) rotate(5deg);
                opacity: 0.9;
                border-radius: 38% 62% 52% 48% / 52% 48% 52% 48%;
            }

            100% {
                transform: translate(-50%, -50%) scale(1) rotate(5deg);
                opacity: 0.8;
                border-radius: 48% 52% 55% 45% / 50% 50% 50% 50%;
            }
        }

        .login-box {
            position: relative;
            z-index: 10;
            background: transparent;
            padding: 40px;
            border-radius: 20px;
            width: 320px;
            text-align: center;
        }

        h2 {
            color: #8b1538;
            margin-bottom: 30px;
            font-size: 28px;
            font-weight: 600;
        }

        .input-group {
            margin-bottom: 20px;
        }

        input {
            width: 100%;
            padding: 12px 20px;
            border: 2px solid #8b1538;
            border-radius: 25px;
            font-size: 14px;
            transition: all 0.3s ease;
            outline: none;
            background: white;
        }

        input:focus {
            border-color: #8b1538;
            box-shadow: 0 0 0 3px rgba(139, 21, 56, 0.1);
        }

        .sign-in-btn {
            width: 100%;
            padding: 12px;
            background: linear-gradient(to right, #8b1538, #00bcd4);
            border: none;
            border-radius: 25px;
            color: white;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            margin-top: 10px;
        }

        .sign-in-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 5px 20px rgba(139, 21, 56, 0.3);
        }

        .sign-in-btn:active {
            transform: translateY(0);
        }

        .links {
            display: flex;
            justify-content: space-between;
            margin-top: 20px;
            font-size: 13px;
        }

        .links a {
            color: #8b1538;
            text-decoration: none;
            transition: all 0.3s ease;
        }

        .links a:hover {
            color: #00bcd4;
            text-decoration: underline;
        }