:root {
    --fc-primary: #3498db;
    --fc-primary-dark: #2980b9;
    --fc-secondary: #2ecc71;
    --fc-secondary-dark: #27ae60;
    --fc-text: #333;
    --fc-text-light: #7f8c8d;
    --fc-background: #f0f2f5;
    --fc-white: #ffffff;
    --fc-error: #e74c3c;
    --fc-info: #e8f4fd;
    --fc-border: #bdc3c7;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--fc-background);
    color: var(--fc-text);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding: 20px;
}

.fc-main-menu-wrapper {
    width: 100%;
    margin-bottom: 20px;
}

.fc-login-container {
    background-color: var(--fc-white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    max-width: 600px;
    width: 100%;
    margin: 0 auto;
    text-align: center;
}

.fc-login-container h2 {
    color: var(--fc-primary-dark);
    margin-bottom: 20px;
    font-size: 24px;
}

.fc-login-error, .fc-info-text {
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 14px;
}

.fc-login-error {
    color: var(--fc-error);
    background-color: #fdeaea;
}

.fc-info-text {
    background-color: var(--fc-info);
    color: var(--fc-text);
    text-align: left;
}

.fc-login-form {
    display: flex;
    flex-direction: column;
    align-items: stretch;
}

.fc-login-form label {
    margin-bottom: 8px;
    color: var(--fc-text);
    text-align: left;
    font-weight: 600;
    font-size: 14px;
}

.fc-login-form input[type="email"],
.fc-login-form input[type="password"] {
    padding: 12px;
    margin-bottom: 20px;
    border: 2px solid var(--fc-border);
    border-radius: 8px;
    font-size: 16px;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.fc-login-form input[type="email"]:focus,
.fc-login-form input[type="password"]:focus {
    border-color: var(--fc-primary);
    outline: none;
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.fc-login-form input[type="submit"] {
    background-color: var(--fc-primary);
    color: var(--fc-white);
    padding: 12px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    font-size: 16px;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.fc-login-form input[type="submit"]:hover,
.fc-login-form input[type="submit"]:focus {
    background-color: var(--fc-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(52, 152, 219, 0.3);
}

.fc-hidden {
    display: none;
}

.fc-join-section {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--fc-border);
}

.fc-join-text {
    color: var(--fc-text-light);
    margin-bottom: 15px;
    font-size: 14px;
}

.fc-join-button {
    background-color: var(--fc-secondary);
    color: var(--fc-white);
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 600;
    font-size: 16px;
    text-decoration: none;
    display: inline-block;
}

.fc-join-button:hover,
.fc-join-button:focus {
    background-color: var(--fc-secondary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(46, 204, 113, 0.3);
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }

    .fc-login-container {
        padding: 20px;
    }

    .fc-login-container h2 {
        font-size: 22px;
    }

    .fc-login-form input[type="email"],
    .fc-login-form input[type="password"],
    .fc-login-form input[type="submit"],
    .fc-join-button {
        font-size: 16px;
    }
}

@media (hover: none) {
    .fc-login-form input[type="submit"]:hover,
    .fc-join-button:hover {
        transform: none;
        box-shadow: none;
    }
}

@supports (-webkit-touch-callout: none) {
    .fc-login-form input[type="email"],
    .fc-login-form input[type="password"],
    .fc-login-form input[type="submit"] {
        font-size: 16px;
    }
}