* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
}

header {
    background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-content a {
    color: white;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
}

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 1.5rem;
}

nav ul li a {
    color: white;
    text-decoration: none;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background 0.3s;
}

nav ul li a:hover {
    background: rgba(255, 255, 255, 0.2);
}

.section-form {
    padding: 2rem 0;
    max-width: 500px;
    margin: 2rem auto;
    background: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.section-form h2 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: #6a11cb;
    padding-top: 1rem;
}

form {
    padding: 0 2rem 2rem;
}

input[type="text"],
input[type="email"],
input[type="password"] {
    width: 100%;
    padding: 12px;
    margin-bottom: 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    transition: border 0.3s;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="password"]:focus {
    border-color: #6a11cb;
    outline: none;
}

button {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 1rem;
    cursor: pointer;
    transition: opacity 0.3s;
}

button:hover {
    opacity: 0.9;
}

.login-link {
    text-align: center;
    margin-top: 1rem;
}

.login-link a {
    color: #6a11cb;
    text-decoration: none;
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }
    
    nav ul {
        margin-top: 1rem;
        justify-content: center;
    }
    
    nav ul li {
        margin: 0 0.5rem;
    }
    
    .section-form {
        margin: 1rem;
        width: auto;
    }
}