/* Chat Access Control Styles */
.chat-locked .chat-input-container {
    position: relative;
}

.chat-signin-prompt {
    position: absolute;
    top: -45px;
    left: 0;
    right: 0;
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid var(--primary-purple, #8b5cf6);
    border-radius: 8px;
    padding: 8px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--primary-purple, #8b5cf6);
    z-index: 10;
    animation: slideDown 0.3s ease;
}

.chat-signin-btn {
    background: var(--primary-purple, #8b5cf6);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 4px 12px;
    font-size: 11px;
    cursor: pointer;
    transition: background 0.2s ease;
    font-weight: 500;
}

.chat-signin-btn:hover {
    background: var(--primary-purple-dark, #7c3aed);
    transform: translateY(-1px);
}

/* Chat Message Styles */
.chat-message {
    margin-bottom: 8px;
    padding: 6px 8px;
    border-radius: 6px;
    transition: background 0.2s ease;
}

.chat-message:hover {
    background: rgba(255, 255, 255, 0.05);
}

.chat-message.own-message {
    background: rgba(139, 92, 246, 0.15);
    border-left: 3px solid var(--primary-purple, #8b5cf6);
    margin: 6px 0;
}

.chat-message-header {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-bottom: 3px;
}

.chat-username {
    font-weight: 600;
    font-size: 13px;
    margin-right: 6px;
}

.chat-username.current-user {
    font-weight: bold;
    text-shadow: 0 0 8px currentColor;
}

.chat-username.guest-user {
    opacity: 0.7;
    font-style: italic;
    font-weight: 400;
}

.chat-timestamp {
    font-size: 10px;
    opacity: 0.5;
    color: var(--color-text-alt, #9ca3af);
    font-weight: 400;
}

.chat-text {
    word-wrap: break-word;
    line-height: 1.4;
    font-size: 14px;
    color: var(--color-text-base, #ffffff);
}

/* Input States */
.chat-input:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background: rgba(255, 255, 255, 0.05);
}

.chat-input:disabled::placeholder {
    color: var(--color-text-alt, #9ca3af);
    opacity: 0.7;
}

/* Send Button States */
.send-chat-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background: var(--color-disabled, #6b7280);
}

.send-chat-btn:disabled:hover {
    background: var(--color-disabled, #6b7280);
    transform: none;
}

/* Authentication Status Indicator */
.chat-auth-status {
    padding: 4px 8px;
    font-size: 11px;
    border-radius: 12px;
    margin-bottom: 8px;
    text-align: center;
}

.chat-auth-status.authenticated {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success, #10b981);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.chat-auth-status.guest {
    background: rgba(156, 163, 175, 0.1);
    color: var(--color-text-alt, #9ca3af);
    border: 1px solid rgba(156, 163, 175, 0.3);
}

/* Animations */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .chat-signin-prompt {
        top: -50px;
        font-size: 11px;
        padding: 6px 10px;
    }
    
    .chat-signin-btn {
        padding: 3px 8px;
        font-size: 10px;
    }
    
    .chat-message {
        padding: 4px 6px;
    }
    
    .chat-username {
        font-size: 12px;
    }
    
    .chat-text {
        font-size: 13px;
    }
}