:root {
  --bg: #f6f7f9; --panel: #ffffff; --ink: #1f2430; --muted: #6b7280; --line: #e5e7eb; --accent: #2563eb;
  --accent-ink: #ffffff; --action: #eef2ff; --observation: #f0fdf4; --failed: #fef2f2; --code: #f3f4f6;
  --rule: #0ea5e9; --agent: #7c3aed; --single: #d97706; --success: #16a34a; --failure: #dc2626; --partial: #d97706; --unknown: #6b7280;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1218; --panel: #171b23; --ink: #e5e7eb; --muted: #9ca3af; --line: #2a3140; --accent: #60a5fa; --accent-ink: #0b1020;
    --action: #1e2437; --observation: #14241b; --failed: #2a1618; --code: #11151c;
  }
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; background: var(--bg); color: var(--ink); font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
code, pre, kbd, textarea, .payload, .observation-text { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
h2 { font-size: 15px; margin: 0 0 8px; } h3 { font-size: 13px; margin: 14px 0 6px; } h4 { font-size: 12px; margin: 10px 0 4px; color: var(--muted); text-transform: uppercase; letter-spacing: .03em; }
.hint, .description, small { color: var(--muted); font-size: 12px; } .description { min-height: 1em; margin: 4px 0 8px; }
button { font: inherit; border-radius: 8px; border: 1px solid var(--line); background: var(--panel); color: var(--ink); padding: 8px 12px; cursor: pointer; }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }
button.ghost:hover, button.primary:hover { filter: brightness(1.05); } button:disabled { opacity: .55; cursor: wait; }
kbd { font-size: 11px; background: rgba(255,255,255,.25); padding: 1px 5px; border-radius: 4px; margin-left: 2px; }
input, select, textarea { font: inherit; width: 100%; padding: 7px 9px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel); color: var(--ink); }
textarea { resize: vertical; }
.field { display: block; margin: 8px 0; } .field > span { display: block; font-size: 12px; color: var(--muted); margin-bottom: 3px; }
.check { display: flex; gap: 6px; align-items: center; margin-top: 6px; font-size: 12px; color: var(--muted); } .check input { width: auto; }

.topbar { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 16px; background: var(--panel); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 2; }
.brand { display: flex; align-items: center; gap: 12px; } .logo { display: inline-grid; place-items: center; width: 40px; height: 40px; border-radius: 10px; background: var(--accent); color: var(--accent-ink); font-weight: 700; letter-spacing: .02em; }
.title { font-weight: 700; font-size: 16px; } .subtitle { color: var(--muted); font-size: 12px; }
.status { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.pill { font-size: 12px; padding: 4px 10px; border-radius: 999px; background: var(--code); color: var(--muted); border: 1px solid var(--line); }

.layout { display: grid; grid-template-columns: 340px minmax(0, 1fr) 380px; gap: 16px; padding: 16px; max-width: 1700px; margin: 0 auto; }
.column { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 14px; min-height: calc(100vh - 110px); }
@media (max-width: 1200px) { .layout { grid-template-columns: 1fr 1fr; } .transcript-column { grid-column: 1 / -1; order: -1; } }
@media (max-width: 760px) { .layout { grid-template-columns: 1fr; padding: 16px; } .column { min-height: auto; } }

.actions { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }
.error { margin-top: 10px; padding: 8px 10px; border-radius: 8px; background: var(--failed); color: var(--failure); border: 1px solid rgba(220,38,38,.3); font-size: 13px; white-space: pre-wrap; }
details.raw { margin-top: 10px; } details.raw summary { cursor: pointer; color: var(--muted); font-size: 12px; }
.knowledge { margin-top: 14px; border-top: 1px solid var(--line); padding-top: 8px; }
.search form { display: flex; gap: 6px; } .results { list-style: none; padding: 0; margin: 8px 0 0; } .results li { padding: 6px 0; border-bottom: 1px dashed var(--line); font-size: 12px; }
.results .ref { color: var(--muted); } .results .snippet { white-space: pre-wrap; margin-top: 2px; }

.transcript { display: flex; flex-direction: column; gap: 14px; padding-bottom: 60px; }
.empty { color: var(--muted); text-align: center; padding: 40px 0; }
.turn { display: flex; flex-direction: column; gap: 6px; }
.bubble { border-radius: 12px; padding: 10px 12px; border: 1px solid var(--line); max-width: 100%; }
.bubble.action { background: var(--action); align-self: flex-end; max-width: 85%; }
.bubble.observation { background: var(--observation); align-self: flex-start; width: 100%; }
.bubble.observation.failed { background: var(--failed); }
.who { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; margin-bottom: 4px; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.payload, .observation-text { margin: 0; white-space: pre-wrap; word-break: break-word; font-size: 13px; }
.badges { display: inline-flex; gap: 6px; flex-wrap: wrap; text-transform: none; letter-spacing: 0; }
.badge { font-size: 11px; padding: 2px 8px; border-radius: 999px; background: var(--code); color: var(--ink); border: 1px solid var(--line); }
.badge.route-rule { border-color: var(--rule); color: var(--rule); } .badge.route-agent { border-color: var(--agent); color: var(--agent); } .badge.route-single_shot { border-color: var(--single); color: var(--single); }
.badge.outcome-success { border-color: var(--success); color: var(--success); } .badge.outcome-failure { border-color: var(--failure); color: var(--failure); }
.badge.outcome-partial { border-color: var(--partial); color: var(--partial); } .badge.outcome-unknown { border-color: var(--unknown); color: var(--unknown); }
.badge.muted { color: var(--muted); }
.badge.kind-rule { border-color: var(--rule); } .badge.kind-note { border-color: var(--agent); } .badge.kind-evidence, .badge.kind-demonstration { border-color: var(--success); }
details.details { margin-top: 8px; font-size: 12px; } details.details summary { cursor: pointer; color: var(--muted); }
.details-body .section { margin: 6px 0; } ul.plain { margin: 0; padding-left: 18px; } ul.plain li { margin: 2px 0; white-space: pre-wrap; word-break: break-word; }
.codeblock { background: var(--code); border: 1px solid var(--line); border-radius: 8px; padding: 10px; margin: 0; white-space: pre-wrap; word-break: break-word; font-size: 12px; max-height: 70vh; overflow: auto; }
.codeblock.small { max-height: 240px; }
.pending { position: sticky; bottom: 12px; display: flex; gap: 8px; align-items: center; padding: 10px 12px; border-radius: 10px; background: var(--panel); border: 1px solid var(--line); color: var(--muted); font-size: 13px; box-shadow: 0 6px 20px rgba(0,0,0,.08); }
.spinner { width: 14px; height: 14px; border-radius: 50%; border: 2px solid var(--line); border-top-color: var(--accent); animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.state-tabs { display: flex; gap: 6px; margin: 8px 0; } .tab { padding: 5px 10px; font-size: 12px; } .tab.active { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
table.diff { width: 100%; border-collapse: collapse; font-size: 12px; } table.diff th, table.diff td { text-align: left; vertical-align: top; padding: 5px 6px; border-bottom: 1px solid var(--line); word-break: break-word; }
table.diff td.path { font-family: ui-monospace, monospace; } table.diff tr.added td.after { color: var(--success); } table.diff tr.removed td.before { color: var(--failure); } table.diff tr.changed td.after { color: var(--accent); }
dl.settings { display: grid; grid-template-columns: max-content 1fr; gap: 4px 12px; font-size: 12px; margin: 0; } dl.settings dt { color: var(--muted); } dl.settings dd { margin: 0; word-break: break-all; }

.command-box { display: flex; align-items: flex-start; gap: 8px; background: var(--code); border: 1px solid var(--line); border-radius: 10px; padding: 8px 10px; }
.command-box:focus-within { border-color: var(--accent); }
.prompt-sign { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; color: var(--accent); font-weight: 700; padding-top: 7px; }
.command-box textarea { border: 0; background: transparent; padding: 6px 0; font-size: 14px; resize: vertical; min-height: 44px; }
.command-box textarea:focus { outline: none; }
.badge.type { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.plays { margin-top: 16px; border-top: 1px solid var(--line); padding-top: 6px; }
ul.examples { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
ul.examples li { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; background: var(--code); }
ul.examples li.active { border-color: var(--accent); }
ul.examples .example-title { font-weight: 600; } ul.examples .example-description { color: var(--muted); font-size: 12px; margin: 4px 0 8px; }
ul.examples .example-meta { color: var(--muted); font-size: 11px; margin-right: 8px; }
.play-steps { margin-top: 10px; border-top: 1px dashed var(--line); padding-top: 4px; }
ol.steps { padding-left: 20px; margin: 8px 0; display: flex; flex-direction: column; gap: 8px; }
ol.steps li { padding: 6px 8px; border-radius: 8px; border: 1px solid transparent; }
ol.steps li.next { border-color: var(--accent); background: var(--action); }
ol.steps li.done { opacity: .65; }
ol.steps .step-text { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; white-space: pre-wrap; word-break: break-word; font-size: 13px; }
ol.steps .step-expect { color: var(--muted); font-size: 12px; margin: 3px 0 6px; }
ol.steps button { padding: 3px 9px; font-size: 12px; }

.pill.warn { color: var(--failure); border-color: var(--failure); }
.subtitle.small { font-size: 11px; }
.keybox { margin-top: 16px; border-top: 1px solid var(--line); padding-top: 6px; }
.keybox form .field { margin: 6px 0; }
.privacy { font-size: 11px; }