:root {
    --fg: #111;
    --muted: #555;
    --line: #ddd;
    --radius: 14px;
}
* {
    box-sizing: border-box;
}
body {
    margin: 0;
    padding: 18px;
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
    color: var(--fg);
    line-height: 1.35;
}
h1 {
    margin: 0 0 6px;
    font-size: 22px;
}
.sub {
    color: var(--muted);
    font-size: 13px;
    margin: 0 0 14px;
}
.panel {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    align-items: center;
    margin: 10px 0 14px;
}
button {
    border: 1px solid #bbb;
    background: #fff;
    cursor: pointer;
    padding: 8px 10px;
    border-radius: 12px;
}
button:hover {
    background: #f7f7f7;
}
input[type="search"] {
    border: 1px solid #bbb;
    padding: 8px 10px;
    border-radius: 12px;
    min-width: 240px;
    flex: 1 1 240px;
}
.small {
    font-size: 12px;
    color: var(--muted);
}
.section {
    margin-top: 12px;
    border: 1px solid #eee;
    border-radius: var(--radius);
    padding: 12px 12px 6px;
}
.section h2 {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 0 0 10px;
    font-size: 16px;
}
.section .right {
    display: flex;
    gap: 8px;
    align-items: center;
}
.tree,
.tree ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
}
.tree ul {
    margin-left: 24px;
    border-left: 1px dashed var(--line);
    padding-left: 14px;
}
li.node {
    padding: 3px 0;
}
label.item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 3px 8px;
    border-radius: 12px;
}
label.item:hover {
    background: #f7f7f7;
}
.name {
    font-weight: 500;
}
.meta {
    color: var(--muted);
    font-size: 12px;
    margin-left: 6px;
}
.hidden {
    display: none !important;
}
.collapsed > ul {
    display: none;
}
.toggle {
    border: 1px solid #bbb;
    background: #fff;
    padding: 6px 10px;
    border-radius: 12px;
    cursor: pointer;
}
.toggle:hover {
    background: #f7f7f7;
}
.chips {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    align-items: center;
    margin: 0 0 6px;
}
.chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid #bbb;
    background: #f2f2f2;
    padding: 6px 10px;
    border-radius: 999px;
    cursor: pointer;
    user-select: none;
}
.chip input {
    margin: 0;
}
.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #bbb;
    border-radius: 999px;
    padding: 3px 8px;
    background: #f9f9f9;
    font-size: 12px;
    color: var(--muted);
}
.stage {
    font-weight: 800;
    font-size: 12px;
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    border: 1px solid #aaa;
}
.stage-I {
    background: #e6f2ff;
}
.stage-R {
    background: #eaffea;
}
.stage-C {
    background: #fff5da;
}
.stage-U {
    background: #f2eaff;
}
.stage-M {
    background: #ffeaea;
}
.stage-? {
    background: #f3f3f3;
    color: #777;
}
.view-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid #bbb;
    background: #fff;
    border-radius: 999px;
    padding: 6px 10px;
    cursor: pointer;
    user-select: none;
}
.view-toggle:hover {
    background: #f7f7f7;
}
.view-toggle input {
    margin: 0;
}
.idlist {
    border: 1px solid #eee;
    border-radius: var(--radius);
    padding: 10px;
    margin-top: 12px;
}
.idrow {
    padding: 4px 0;
    border-bottom: 1px dashed #eee;
}
.idrow:last-child {
    border-bottom: none;
}
.lvl-1 {
    margin-left: 30px;
}
.lvl-2 {
    margin-left: 60px;
}
.lvl-3 {
    margin-left: 90px;
}
.lvl-4 {
    margin-left: 120px;
}
.lvl-5 {
    margin-left: 150px;
}
.lvl-6 {
    margin-left: 180px;
}
.lvl-7 {
    margin-left: 210px;
}