body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fa;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    color: #333;
}

.container {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    width: 400px;
    padding: 40px;
}

.logo {
    text-align: center;
    margin-bottom: 30px;
}

.logo h1 {
    color: #2563eb;
    margin: 0;
    font-size: 28px;
}

.logo p {
    color: #64748b;
    margin-top: 5px;
    font-size: 14px;
}

.tabs {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 1px solid #e2e8f0;
}

.tab {
    flex: 1;
    padding: 12px;
    background: none;
    border: none;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    color: #64748b;
    position: relative;
}

.tab.active {
    color: #2563eb;
}

.tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: #2563eb;
}

.auth-form {
    display: none;
}

.auth-form.active {
    display: block;
}

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

.name-fields {
    display: flex;
    gap: 15px;
}

.name-fields .form-group {
    flex: 1;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
}

input {
    width: 100%;
    padding: 12px;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    font-size: 14px;
    box-sizing: border-box;
    transition: border-color 0.3s;
}

input:focus {
    outline: none;
    border-color: #2563eb;
}

.checkbox-group {
    display: flex;
    align-items: center;
}

.checkbox-group input {
    width: auto;
    margin-right: 10px;
}

.checkbox-group label {
    margin-bottom: 0;
    font-weight: normal;
}

.checkbox-group a {
    color: #2563eb;
    text-decoration: none;
}

.forgot-password {
    text-align: right;
    margin-top: -15px;
    margin-bottom: 20px;
}

.forgot-password a {
    color: #64748b;
    font-size: 13px;
    text-decoration: none;
}

.forgot-password a:hover {
    color: #2563eb;
}

button[type="submit"] {
    width: 100%;
    padding: 12px;
    background-color: #2563eb;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.3s;
}

button[type="submit"]:hover {
    background-color: #1d4ed8;
}

.auth-switch {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
}

.auth-switch a {
    color: #2563eb;
    text-decoration: none;
    font-weight: 500;
}