/* ai-panel.css — AI chat panel + mobile */

.ai-panel {
    width: 350px;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    background: var(--bg-surface);
    border-left: 1px solid var(--border-default);
    transition: width 0.2s ease;
}

.ai-panel.collapsed {
    width: 0;
    overflow: hidden;
    border-left: none;
}

.ai-panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-default);
    font-size: var(--font-size-sm);
    color: var(--text-bright);
    flex-shrink: 0;
}

.ai-panel-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 16px;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}
.ai-panel-close:hover { color: var(--text-bright); background: var(--bg-hover); }

.ai-panel-body {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
}

.ai-panel-input {
    display: flex;
    gap: 4px;
    padding: 8px;
    border-top: 1px solid var(--border-default);
    flex-shrink: 0;
}

.ai-panel-input textarea {
    flex: 1;
    min-width: 0;
    resize: none;
    background: var(--input-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    padding: 6px 8px;
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
}

.ai-panel-input .btn {
    width: auto;
    flex-shrink: 0;
    align-self: flex-end;
    justify-content: center;
}

.ai-welcome {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    text-align: center;
    padding: 24px 12px;
}

.ai-question {
    padding: 8px 12px;
    margin: 4px 0;
    background: var(--overlay-subtle);
    border-radius: var(--radius-sm);
    color: var(--text-bright);
    font-size: var(--font-size-sm);
    border-left: 3px solid var(--accent-primary);
}

.ai-answer {
    padding: 8px 12px;
    margin: 4px 0;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

.ai-toggle-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 20px;
    cursor: pointer;
    padding: 8px 12px;
}
.ai-toggle-btn:hover { color: var(--text-bright); }

@media (max-width: 768px) {
    .ai-panel {
        display: flex;
        position: fixed;
        top: 60px;
        right: 0;
        width: 85%;
        height: calc(var(--vh, 1vh) * 100 - 60px - 22px);
        max-height: calc(var(--vh, 1vh) * 100 - 60px - 22px);
        z-index: 300;
        background: var(--bg-surface);
        border-left: 1px solid var(--border-default);
        box-shadow: none;
        transform: translateX(100%);
        transition: transform 0.3s ease, visibility 0s 0.3s;
        visibility: hidden;
        overflow-y: hidden;
    }

    .ai-panel.collapsed {
        width: 85%;
        overflow: hidden;
        border-left: 1px solid var(--border-default);
    }

    .ai-panel.mobile-open {
        transform: translateX(0);
        box-shadow: -2px 0 8px rgba(0, 0, 0, 0.5);
        visibility: visible;
        transition: transform 0.3s ease;
    }
}

@media (max-width: 400px) {
    .ai-panel {
        top: 50px;
        height: calc(var(--vh, 1vh) * 100 - 50px - 22px);
        max-height: calc(var(--vh, 1vh) * 100 - 50px - 22px);
        width: 90%;
    }
    .ai-panel.collapsed { width: 90%; }

    .ai-toggle-btn {
        font-size: 18px;
        padding: 6px 10px;
    }
}