/* Auth gate (sign in / sign up) */
.auth-page {
    position: fixed;
    inset: 0;
    z-index: 3000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
}

.auth-card {
    width: 100%;
    max-width: 400px;
    padding: var(--spacing-xl);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.auth-card h1 {
    font-family: 'Gruppo', sans-serif;
    font-size: 1.5rem;
    font-weight: 400;
    margin: 0 0 var(--spacing-lg);
    text-align: center;
    color: var(--text-primary);
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.auth-form label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.auth-form input[type="email"],
.auth-form input[type="password"] {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: 'Spectral', serif;
    font-size: 1rem;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    transition: border-color var(--transition-fast);
}

.auth-form input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.auth-form .auth-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.auth-form .auth-error {
    font-size: 0.85rem;
    color: var(--error-color);
    margin: 0;
}

.auth-tabs {
    display: flex;
    gap: 0;
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.auth-tabs button {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
    background: transparent;
    font-family: 'Spectral', serif;
    font-size: 0.95rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

.auth-tabs button:hover {
    color: var(--text-primary);
}

.auth-tabs button.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}

.auth-toggle {
    margin-top: var(--spacing-md);
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
}

.auth-toggle button {
    background: none;
    border: none;
    color: var(--accent-color);
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
    text-decoration: underline;
    padding: 0;
}

.auth-toggle button:hover {
    color: var(--accent-hover);
}