/* Base styles */
body { 
    background: #f8f9fa; 
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

h1, h2, h3 { 
    margin-top: 1rem; 
    color: #333;
}

/* Auth Container */
.auth-container {
    max-width: 400px;
    margin: 2rem auto;
    padding: 2rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.auth-container h2 {
    margin-bottom: 1.5rem;
    text-align: center;
    color: #2c3e50;
}

/* Form Styles */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: #495057;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.form-group input:focus {
    border-color: #80bdff;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0,123,255,0.25);
}

/* Buttons */
.btn {
    display: inline-block;
    font-weight: 400;
    text-align: center;
    vertical-align: middle;
    cursor: pointer;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    line-height: 1.5;
    border-radius: 0.25rem;
    transition: color 0.15s ease-in-out, background-color 0.15s ease-in-out, border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
}

.btn-primary {
    color: #fff;
    background-color: #007bff;
    border: 1px solid #0056b3;
}

.btn-primary:hover {
    background-color: #0069d9;
    border-color: #0062cc;
}

.btn-link {
    font-weight: 400;
    color: #007bff;
    text-decoration: none;
    background-color: transparent;
    border: none;
}

.btn-link:hover {
    color: #0056b3;
    text-decoration: underline;
}

/* Alerts */
.alert {
    position: relative;
    padding: 0.75rem 1.25rem;
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: 0.25rem;
}

.alert-error {
    color: #721c24;
    background-color: #f8d7da;
    border-color: #f5c6cb;
}

.alert-success {
    color: #155724;
    background-color: #d4edda;
    border-color: #c3e6cb;
}

/* Form Actions */
.form-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 1.5rem;
}

/* Mobile Responsive */
@media (max-width: 576px) {
    .auth-container {
        margin: 1rem;
        padding: 1.5rem;
    }

    .form-actions {
        flex-direction: column;
        gap: 1rem;
    }

    .form-actions .btn {
        width: 100%;
    }
}

/* Navigation styles */
.navbar {
    padding: 1rem 0;
    background-color: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}

.navbar-brand {
    font-size: 1.25rem;
    font-weight: 500;
    color: #2c3e50;
}

.nav-link {
    color: #6c757d;
    font-weight: 500;
}

.nav-link:hover {
    color: #007bff;
}

/* Game Board Styles */
.game-board {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    margin-bottom: 2rem;
}