* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Arial', sans-serif;
}

body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.container {
    position: relative;
    width: 400px;
    padding: 40px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 10px;
    box-shadow: 0 15px 25px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    animation: fadeIn 1s ease-in-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.signup-form h2 {
    margin-bottom: 30px;
    color: #fff;
    text-align: center;
    font-size: 24px;
    position: relative;
}

.signup-form h2::after {
    content: '';
    position: absolute;
    width: 60px;
    height: 3px;
    background: #fff;
    left: 50%;
    bottom: -10px;
    transform: translateX(-50%);
}

.input-field {
    position: relative;
    margin-bottom: 40px;
}

.input-field input {
    width: 100%;
    padding: 15px 10px;
    border: none;
    outline: none;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 5px;
    color: #fff;
    font-size: 16px;
    letter-spacing: 0.5px;
    transition: background 0.3s ease, transform 0.3s ease;
}

.input-field input:focus {
    background: rgba(255, 255, 255, 0.5);
    transform: scale(1.05);
}

.input-field label {
    position: absolute;
    top: 50%;
    left: 15px;
    transform: translateY(-50%);
    color: #fff;
    font-size: 16px;
    pointer-events: none;
    transition: all 0.3s ease;
}

.input-field input:focus + label,
.input-field input:valid + label {
    top: -10px;
    left: 10px;
    color: #fff;
    font-size: 14px;
}

.input-field .toggle-password {
    position: absolute;
    top: 50%;
    right: 15px;
    transform: translateY(-50%);
    cursor: pointer;
    color: #fff;
    font-size: 20px;
    transition: color 0.3s ease;
}

.input-field .toggle-password:hover {
    color: #667eea;
}

button {
    width: 100%;
    padding: 15px;
    border: none;
    border-radius: 5px;
    background: #0d2799;
    color: #fff;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s ease, transform 0.3s ease;
}

button:hover {
    background: #5563c1;
    transform: scale(1.05);
}

.links {
    margin-top: 20px;
    text-align: center;
}

.links a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

.links a:hover {
    color: #ddd;
}
