:root {
    --primary-color: #4a148c;
    --secondary-color: #7b1fa2;
    --accent-color: #e91e63;
    --light-color: #f3e5f5;
    --dark-color: #12005e;
    --text-color: #333;
    --text-light: #fff;
    --error-color: #f44336;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #f5f5f5;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 500px;
    width: 100%;
    padding: 40px;
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    animation: fadeIn 0.5s ease-out forwards;
}

h1 {
    color: var(--primary-color);
    margin-bottom: 20px;
    font-size: 1.8rem;
    text-align: center;
    border-bottom: 2px solid var(--light-color);
    padding-bottom: 10px;
}

.error-message {
    color: var(--error-color);
    margin: 20px 0;
    text-align: center;
    font-weight: 500;
}

form {
    margin-top: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark-color);
}

input[type="text"],
input[type="password"],
input[type="email"] {
    width: 100%;
    padding: 12px 15px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="email"]:focus {
    border-color: var(--secondary-color);
    outline: none;
    box-shadow: 0 0 0 2px rgba(123, 31, 162, 0.2);
}

button {
    width: 100%;
    padding: 12px;
    background-color: var(--secondary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 10px;
}

button:hover {
    background-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

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

a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
}

a:hover {
    text-decoration: underline;
}

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

@media (max-width: 768px) {
    .container {
        padding: 30px 20px;
    }
    
    h1 {
        font-size: 1.5rem;
    }
}