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

body {
    font-family: 'Roboto', Arial, sans-serif;
    background: linear-gradient(135deg, #2E8B57 0%, #1F5C3F 100%);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.navbar-wrapper {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1000;
}

.container {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 420px;
    margin-top: 100px;
}

h1 {
    color: #2E8B57;
    margin-bottom: 8px;
    text-align: center;
    font-size: 28px;
    font-weight: 700;
}

.subtitle {
    color: #666;
    text-align: center;
    margin-bottom: 30px;
    font-size: 14px;
}

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

label {
    display: block;
    margin-bottom: 8px;
    color: #333;
    font-weight: 500;
    font-size: 14px;
}

input[type="email"],
input[type="text"],
input[type="password"] {
    width: 100%;
    padding: 12px;
    border: 2px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    box-sizing: border-box;
    transition: border-color 0.3s;
}

input:focus {
    outline: none;
    border-color: #2E8B57;
    box-shadow: 0 0 8px rgba(46, 139, 87, 0.2);
}

.admin-toggle {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    padding: 12px;
    background-color: #f0f8f5;
    border-radius: 6px;
    cursor: pointer;
}

.toggle-checkbox {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: #2E8B57;
}

.toggle-label {
    margin: 0;
    font-weight: 500;
    color: #333;
    cursor: pointer;
    font-size: 14px;
}

.error {
    background-color: #f8d7da;
    color: #721c24;
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 20px;
    border: 1px solid #f5c6cb;
}

.success {
    background-color: #d4edda;
    color: #155724;
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 20px;
    border: 1px solid #c3e6cb;
}

.btn {
    width: 100%;
    padding: 12px;
    background: linear-gradient(135deg, #2E8B57 0%, #1F5C3F 100%);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(46, 139, 87, 0.3);
}

.signup-link {
    text-align: center;
    margin-top: 24px;
    color: #666;
    font-size: 14px;
}

.signup-link a {
    color: #2E8B57;
    text-decoration: none;
    font-weight: 600;
}

.signup-link a:hover {
    text-decoration: underline;
}

#usernameField {
    display: none;
}

@media (max-width: 600px) {
    .container {
        margin-top: 120px;
        padding: 24px;
    }

    h1 {
        font-size: 24px;
    }
}