/* /css/auth.css */

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

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

.auth-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.auth-box {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.2);
    padding: 30px;
    animation: fadeIn 0.5s ease;
}

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

.auth-box h2 {
    text-align: center;
    margin-bottom: 20px;
    color: #333;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    color: #555;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
    transition: border 0.3s;
}

.form-group input:focus {
    border-color: #667eea;
    outline: none;
}

.btn {
    width: 100%;
    padding: 12px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 5px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.3s;
}

.btn:hover {
    background: #5a6fd1;
}

.auth-footer {
    text-align: center;
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid #eee;
}

.auth-footer a {
    color: #667eea;
    text-decoration: none;
    transition: color 0.3s;
}

.auth-footer a:hover {
    color: #5a6fd1;
}

.error {
    color: #e74c3c;
    text-align: center;
    margin-bottom: 15px;
    padding: 10px;
    background: #fde8e8;
    border-radius: 5px;
}

/* Thêm phần này ở cuối file auth.css */

@media (max-width: 768px) {
    .auth-container {
        padding: 15px;
        max-width: 100%;
    }

    .auth-box {
        padding: 25px;
    }

    .auth-box h2 {
        font-size: 1.3rem;
    }

    .form-group input {
        padding: 10px 12px;
    }

    .btn {
        padding: 10px;
    }
}

@media (max-width: 480px) {
    .auth-box {
        padding: 20px;
        margin: 0 10px;
    }

    .auth-footer {
        font-size: 0.9rem;
    }
}