/* Persistent Chat Bar */
#ai-assistant-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-bg-card);
    border-top: 1px solid var(--color-border);
    z-index: 100;
    display: flex;
    flex-direction: column;
}

/* Floating Chat Panel (History) */
#chat-panel {
    height: 0;
    transition: height 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    background-color: var(--color-bg-main);
}

#chat-panel.open {
    height: 50vh;
    /* Expands to half screen height */
    border-bottom: 1px solid var(--color-border);
}

.chat-header {
    height: 40px;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--color-bg-hover);
    border-bottom: 1px solid var(--color-border);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

#close-chat-panel {
    background: none;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
}

.chat-history {
    flex: 1;
    padding: var(--spacing-lg);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    background-color: #0d1117;
    /* Darker bg for chat history */
}

/* Chat Input Area */
.chat-input-wrapper {
    height: var(--chat-bar-height);
    padding: 0 var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    background-color: var(--color-bg-card);
}

#chat-input {
    flex: 1;
    height: 44px;
    background-color: var(--color-bg-main);
    border: 1px solid var(--color-border);
    border-radius: 22px;
    /* Pill shape */
    padding: 0 20px;
    color: var(--color-text-main);
    font-size: 1rem;
    transition: all 0.2s;
}

#chat-input:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 2px var(--color-accent-dim);
}

#send-chat-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--color-accent);
    color: #000;
    /* Contrast black on yellow */
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.1s;
}

#send-chat-btn:hover {
    background-color: var(--color-accent-hover);
}

#send-chat-btn:active {
    transform: scale(0.95);
}

#toggle-chat-panel-btn {
    border: none;
}

#toggle-chat-panel-btn.active {
    color: var(--color-accent);
    background-color: var(--color-accent-dim);
}


/* Message Bubbles */
.chat-message {
    display: flex;
    gap: var(--spacing-md);
    max-width: 80%;
    animation: slideIn 0.2s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chat-message.system {
    align-self: flex-start;
}

.chat-message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
}

.chat-message.system .avatar {
    background-color: var(--color-bg-hover);
    color: var(--color-accent);
}

.chat-message.user .avatar {
    background-color: var(--color-accent);
    color: #000;
}

.message-content {
    background-color: var(--color-bg-card);
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 0.95rem;
    line-height: 1.5;
    border: 1px solid var(--color-border);
}

.chat-message.user .message-content {
    background-color: var(--color-accent-dim);
    border-color: transparent;
    color: #fff;
    /* Keep text readable */
}

/* User text on yellow dim might need adjustment. Let's make it brighter or different. */
.chat-message.user .message-content {
    background-color: #2b2b2b;
    /* Neutral dark for user bubble to avoid too much yellow */
    border: 1px solid #444;
}

/* System suggestion text */
.suggestion {
    margin-top: 4px;
    font-size: 0.8rem;
    color: var(--color-text-muted);
}