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

html,
body {
    height: 100%;
    width: 100%;
}

body {
    font-family: 'Poppins', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
    position: relative;
    overflow-x: hidden;
}

/* Animated background circles */
body::before,
body::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    opacity: 0.15;
    animation: float 8s ease-in-out infinite;
}

body::before {
    width: 600px;
    height: 600px;
    background: white;
    top: -300px;
    right: -300px;
    animation-delay: 0s;
}

body::after {
    width: 400px;
    height: 400px;
    background: white;
    bottom: -200px;
    left: -200px;
    animation-delay: 2s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0) rotate(0deg);
    }

    50% {
        transform: translateY(-30px) rotate(10deg);
    }
}

.login-container {
    background: white;
    border-radius: 20px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
    width: 100%;
    max-width: 450px;
    padding: 50px 45px;
    position: relative;
    z-index: 10;
    animation: slideUp 0.5s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 45px;
}

.login-header h1 {
    font-size: 30px;
    font-weight: 700;
    color: #2d3748;
    margin-bottom: 10px;
    line-height: 1.3;
}

.login-header p {
    font-size: 15px;
    color: #718096;
    font-weight: 400;
}

.login-form {
    width: 100%;
}

.form-group {
    margin-bottom: 25px;
    width: 100%;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: #2d3748;
    margin-bottom: 10px;
}

.form-group input {
    width: 100%;
    padding: 15px 18px;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    font-size: 15px;
    font-family: 'Poppins', sans-serif;
    color: #2d3748;
    background: #f7fafc;
    transition: all 0.3s ease;
    outline: none;
}

.form-group input:focus {
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

.form-group input::placeholder {
    color: #a0aec0;
}

.login-button {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.4);
    font-family: 'Poppins', sans-serif;
}

.login-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(102, 126, 234, 0.5);
}

.login-button:active {
    transform: translateY(-1px);
}

/* Responsive Design */
@media (max-width: 768px) {
    .login-container {
        max-width: 100%;
        padding: 40px 35px;
    }

    .login-header h1 {
        font-size: 26px;
    }

    .login-header p {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 15px;
    }

    .login-container {
        padding: 35px 28px;
        border-radius: 16px;
    }

    .login-header {
        margin-bottom: 35px;
    }

    .login-header h1 {
        font-size: 24px;
    }

    .login-header p {
        font-size: 13px;
    }

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

    .form-group label {
        font-size: 13px;
        margin-bottom: 8px;
    }

    .form-group input {
        padding: 13px 15px;
        font-size: 14px;
    }

    .login-button {
        padding: 14px;
        font-size: 15px;
    }
}

@media (max-width: 360px) {
    .login-container {
        padding: 30px 22px;
    }

    .login-header h1 {
        font-size: 22px;
    }

    .form-group input {
        padding: 12px 14px;
        font-size: 13px;
    }
}