/* Layout */
#line { border-bottom: 1.5px solid var(--border); }
.container { display:grid; grid-template-columns:minmax(260px, var(--sidebar-width)) 28px minmax(0, 1fr) 0 0; height:100vh; }
.container.info-open { grid-template-columns:minmax(260px, var(--sidebar-width)) 28px minmax(0, 1fr) 28px minmax(340px, var(--info-panel-width)); }
.container.resizing { cursor:col-resize; user-select:none; }
.container.info-open .chat-container { margin-right:0; }

.resize-ghost-line {
    position:fixed;
    top:0;
    bottom:0;
    width:5px;
    border-radius:999px;
    background:var(--accent);
    box-shadow:0 0 0 3px rgba(62,166,255,0.16);
    pointer-events:none;
    z-index:5000;
    opacity:0;
    transform:translateX(-50%);
    transition:opacity 0.08s ease;
}
.resize-ghost-line.active {
    opacity:1;
}

/* Sub Container (Settings Panel Area) */
.sub-container { display: flex; flex-direction: column; height: calc(100vh - 40px); box-sizing: border-box; margin:20px 0 20px 20px; background:var(--panel-bg); padding:15px; border-radius:10px; box-shadow:0 2px 6px rgba(0,0,0,0.06); position:relative; }

/* Resizers */
.sidebar-resize-handle,
.info-resize-handle {
    align-self:stretch;
    cursor:col-resize;
    position:relative;
    width:28px;
    margin:0 auto;
}
.sidebar-resize-handle::before,
.info-resize-handle::before {
    content:"";
    position:absolute;
    top:20px;
    bottom:20px;
    left:50%;
    width:3px;
    transform:translateX(-50%);
    border-radius:999px;
    background:var(--border);
    transition:background 0.15s ease, width 0.15s ease;
}
.sidebar-resize-handle:hover::before,
.sidebar-resize-handle:focus-visible::before,
.info-resize-handle:hover::before,
.info-resize-handle:focus-visible::before,
.container.resizing .sidebar-resize-handle::before,
.container.resizing .info-resize-handle::before {
    width:5px;
    background:var(--accent);
}
.info-resize-handle,
.chat-info-panel {
    display:none;
}
.container.info-open .info-resize-handle {
    display:block;
}
.container.info-open .chat-info-panel {
    display:flex;
    flex-direction:column;
}

/* Responsive */
@media (max-width: 768px) {
    body { overflow: auto; }
    .sidebar-resize-handle {
        display: none;
    }
    .info-resize-handle,
    .chat-info-panel {
        display: none !important;
    }
    .container {
        flex-direction: column;
        display: flex;
        align-items: center;
        height: auto;
    }
    .chat-container {
        display: flex;
        width: auto;
        min-width: calc(100% - 20px);
        border-radius: 0;
        box-shadow: none;
        margin-top: 10px;
        max-height: 100%;
    }
    .settings {
        width: 100%;
        max-height: 100%;
        margin: 0px;
        border-radius: 0;
        box-shadow: none;
    }
}