* { box-sizing: border-box; }
body { margin: 0; background: var(--tt-bg, #f5f7fb); color: var(--tt-text, #172033); font-family: var(--tt-font, system-ui, sans-serif); }
.shell { width: min(100% - 32px, var(--tt-maxw, 1180px)); margin: 0 auto; padding: 36px 0 64px; }
.hero { max-width: 760px; margin-bottom: 22px; }
.eyebrow, .label { color: var(--tt-primary, #2563eb); font-size: .78rem; font-weight: 750; letter-spacing: .08em; margin: 0 0 7px; text-transform: uppercase; }
h1 { font-size: clamp(2rem, 5vw, 3.15rem); letter-spacing: -.05em; margin: 0; }
.intro { color: var(--tt-muted, #5d6b82); font-size: 1.05rem; line-height: 1.6; margin: 10px 0 0; }
.workspace, .panel, .summary-card { background: var(--tt-surface, #ffffff); border: 1px solid var(--tt-line, #d9e1ef); border-radius: var(--tt-radius, 12px); box-shadow: var(--tt-shadow, 0 8px 24px rgba(20,35,60,.06)); }
.input-pane { padding: 22px; }
label { display: block; font-weight: 700; margin-bottom: 9px; }
textarea { border: 1px solid var(--tt-line, #d9e1ef); border-radius: 9px; color: var(--tt-text, #172033); font: 13px/1.55 ui-monospace, SFMono-Regular, monospace; min-height: 145px; padding: 13px; resize: vertical; width: 100%; }
textarea:focus { border-color: var(--tt-primary, #2563eb); box-shadow: 0 0 0 3px var(--tt-primary-soft, #e9f1ff); outline: none; }
.input-footer { align-items: center; display: flex; gap: 14px; justify-content: space-between; margin-top: 12px; }
.format-hint, .privacy { color: var(--tt-muted, #5d6b82); font-size: .88rem; margin: 0; }
.privacy { margin-top: 10px; }
button { background: var(--tt-primary, #2563eb); border: 0; border-radius: 8px; color: #fff; cursor: pointer; font-weight: 700; padding: 10px 16px; }
button:hover { background: var(--tt-primary-dark, #1d4ed8); }
.results { padding: 0 22px 22px; }
.summary-card { align-items: center; display: flex; gap: 30px; margin: 22px 0; padding: 16px 18px; }
.summary-card strong, .summary-card span { display: block; font-size: .95rem; }
.result-grid { display: grid; gap: 18px; grid-template-columns: minmax(0, 1.15fr) minmax(310px, .85fr); }
.side-stack { display: grid; gap: 18px; align-content: start; }
.panel { padding: 16px; }
.panel-heading { align-items: center; display: flex; justify-content: space-between; margin-bottom: 12px; }
h2 { font-size: 1rem; margin: 0; }
#tree-count { color: var(--tt-muted, #5d6b82); font-size: .8rem; }
.tree-node { margin: 5px 0; }
.node-button { align-items: center; background: var(--tt-surface-soft, #fbfdff); border: 1px solid var(--tt-line, #d9e1ef); color: var(--tt-text, #172033); display: flex; font: inherit; gap: 8px; text-align: left; width: 100%; }
.node-button:hover, .node-button.selected { background: var(--tt-primary-soft, #e9f1ff); border-color: var(--tt-primary, #2563eb); }
.node-button.hotspot { border-left: 4px solid var(--tt-danger, #b42318); }
.caret { color: var(--tt-primary, #2563eb); width: 15px; }
.node-subtitle { color: var(--tt-muted, #5d6b82); font-size: .78rem; margin-left: auto; }
.children { border-left: 1px solid var(--tt-line, #d9e1ef); margin: 4px 0 4px 14px; padding-left: 11px; }
.hidden { display: none; }
.metric-grid { display: grid; gap: 8px; grid-template-columns: 1fr 1fr; }
.metric { background: var(--tt-surface-soft, #fbfdff); border: 1px solid var(--tt-line, #d9e1ef); border-radius: 8px; padding: 9px; }
.metric span { color: var(--tt-muted, #5d6b82); display: block; font-size: .72rem; margin-bottom: 3px; }
.metric strong { font-size: .9rem; word-break: break-word; }
.detail { color: var(--tt-muted, #5d6b82); font-size: .86rem; line-height: 1.45; margin: 12px 0 0; }
.action-card { border-left: 3px solid var(--tt-primary, #2563eb); padding: 2px 0 2px 12px; }
.action-card + .action-card { margin-top: 14px; }
.action-card h3 { font-size: .9rem; margin: 0 0 5px; }
.action-card p { color: var(--tt-muted, #5d6b82); font-size: .84rem; line-height: 1.45; margin: 5px 0; }
code { background: var(--tt-surface-soft, #fbfdff); border: 1px solid var(--tt-line, #d9e1ef); border-radius: 5px; display: block; font-size: .77rem; overflow-wrap: anywhere; padding: 7px; }
.copy { font-size: .75rem; margin-top: 6px; padding: 6px 9px; }
.notice { border-radius: 8px; margin-top: 12px; padding: 10px 12px; }
.error { background: var(--tt-primary-soft, #e9f1ff); border-left: 3px solid var(--tt-danger, #b42318); color: var(--tt-danger, #b42318); }
@media (max-width: 760px) { .shell { width: min(100% - 20px, var(--tt-maxw, 1180px)); padding-top: 20px; } .result-grid { grid-template-columns: 1fr; } .summary-card { align-items: flex-start; flex-direction: column; gap: 12px; } .input-footer { align-items: flex-start; flex-direction: column; } }