:root {
  color-scheme: dark;
  --bg: #202326;
  --surface: #292d30;
  --surface-2: #32373b;
  --border: #4b5258;
  --text: #f2f4f5;
  --muted: #b7bec3;
  --accent: #ff7b46;
  --accent-soft: rgba(255, 123, 70, 0.14);
  --success: #99e015;
  --warning: #ffb942;
  --error: #f32d73;
  --radius: 14px;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  background: var(--bg);
  color: var(--text);
  font: 16px/1.45 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
button, textarea { font: inherit; }
button { cursor: pointer; }

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 20px;
  padding: 20px;
}

.side-panel, .chat-panel {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}
.side-panel { padding: 16px; display: flex; flex-direction: column; gap: 14px; }
.brand-card, .panel-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px;
  background: rgba(32, 35, 38, 0.52);
}
.section-kicker {
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.section-title { font-weight: 700; }
h1, h2, p { margin: 0; }
h1 { margin-top: 8px; font-size: 28px; line-height: 1.15; }
h2 { margin-top: 4px; font-size: 25px; line-height: 1.2; }
.brand-card p { margin-top: 12px; color: var(--muted); }
.panel-card ul { margin: 12px 0 0; padding-left: 20px; color: var(--muted); }
.panel-card li + li { margin-top: 7px; }
.status-row { margin-top: 12px; display: flex; align-items: center; gap: 9px; color: var(--muted); }
.status-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--warning); }
.status-dot.ready { background: var(--success); }
.status-dot.error { background: var(--error); }
.source-list { margin-top: 16px; display: grid; gap: 5px; color: var(--muted); font-size: 13px; }
.source-list code { color: var(--text); overflow-wrap: anywhere; }
.secondary-button, .examples button {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface-2);
  color: var(--text);
  padding: 10px 12px;
}
.secondary-button { width: 100%; }
.secondary-button:hover, .examples button:hover { border-color: var(--accent); }

.chat-panel {
  min-height: calc(100vh - 40px);
  padding: 22px;
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr) auto auto;
  gap: 15px;
}
.chat-header {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: flex-start;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--border);
}
.header-note { max-width: 310px; color: var(--muted); font-size: 13px; text-align: right; }
.header-actions { display: flex; align-items: center; justify-content: flex-end; gap: 14px; flex-wrap: wrap; }
.winter-toggle {
  position: relative; display: inline-flex; align-items: center; gap: 9px;
  border: 1px solid var(--border); border-radius: 999px; padding: 7px 10px;
  background: var(--surface-2); color: var(--muted); user-select: none; cursor: pointer;
}
.winter-toggle.active { border-color: #79b8ff; color: var(--text); background: rgba(121, 184, 255, .10); }
.winter-toggle-label { font-size: 13px; font-weight: 650; white-space: nowrap; }
.winter-toggle input { position: absolute; opacity: 0; pointer-events: none; }
.winter-toggle-slider {
  position: relative; width: 34px; height: 19px; border-radius: 999px;
  background: rgba(183, 190, 195, .28); transition: background .16s ease;
}
.winter-toggle-slider::after {
  content: ''; position: absolute; width: 15px; height: 15px; top: 2px; left: 2px;
  border-radius: 50%; background: var(--text); transition: transform .16s ease;
}
.winter-toggle input:checked + .winter-toggle-slider { background: #4f9ee8; }
.winter-toggle input:checked + .winter-toggle-slider::after { transform: translateX(15px); }
.examples { display: flex; flex-wrap: wrap; gap: 8px; }
.messages {
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 13px;
  padding: 7px;
  background: rgba(25, 27, 29, .35);
  border-radius: 12px;
}
.message {
  width: min(850px, 92%);
  border: 1px solid var(--border);
  border-radius: 13px;
  background: var(--surface-2);
  padding: 15px;
}
.user-message { align-self: flex-end; background: var(--accent-soft); border-color: rgba(255, 123, 70, .52); }
.assistant-message { align-self: flex-start; }
.message-role { margin-bottom: 7px; color: var(--muted); font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; }
.message-body { white-space: pre-wrap; }

.result-visual { margin-top: 14px; border-top: 1px solid var(--border); padding-top: 13px; }
.result-visual h3 { margin: 0 0 10px; font-size: 16px; }
.result-table-wrap { margin-top: 16px; }
.result-table-wrap h4 { margin: 0 0 8px; font-size: 14px; }
.result-table-viewport { overflow-x: auto; }
.result-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.result-table th, .result-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); text-align: left; }
.result-table th { color: var(--muted); font-weight: 600; }
.result-table th button { border: 0; padding: 0; background: none; color: inherit; font: inherit; cursor: pointer; white-space: nowrap; }
.result-table-controls { display: flex; gap: 8px; margin-bottom: 8px; }
.result-table-controls input { flex: 1; min-width: 150px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--text); padding: 8px 10px; }
.result-table-controls button, .result-table-pager button { border: 1px solid var(--border); border-radius: 8px; background: var(--surface-2); color: var(--text); padding: 7px 10px; }
.result-table-pager { display: flex; justify-content: flex-end; align-items: center; gap: 8px; margin-top: 8px; color: var(--muted); font-size: 12px; }
.result-table-pager span { margin-right: auto; }
.result-table-pager button:disabled { opacity: .45; cursor: default; }
.bar-list { display: grid; gap: 9px; }
.bar-row { display: grid; grid-template-columns: minmax(120px, 220px) minmax(120px, 1fr) auto; gap: 10px; align-items: center; font-size: 14px; }
.bar-label { overflow-wrap: anywhere; }
.bar-track { height: 10px; border-radius: 99px; background: rgba(183, 190, 195, .16); overflow: hidden; }
.bar-fill { height: 100%; background: var(--accent); border-radius: inherit; }
.bar-value { min-width: 42px; text-align: right; font-variant-numeric: tabular-nums; }

.response-meta { margin-top: 13px; }
.response-meta summary { color: var(--muted); cursor: pointer; font-size: 13px; }
.response-meta-content { margin-top: 9px; display: grid; gap: 7px; color: var(--muted); font-size: 13px; }
.response-meta-content ul { margin: 0; padding-left: 20px; }
.request-id { overflow-wrap: anywhere; }
.response-notice { display: grid; gap: 4px; margin-top: 12px; border-left: 3px solid var(--warning); border-radius: 7px; background: rgba(255, 185, 66, .08); padding: 9px 11px; color: #f3d7a0; font-size: 13px; }
.response-periods { display: grid; gap: 4px; margin-top: 10px; color: var(--muted); font-size: 12px; }
.response-period.stale { color: var(--warning); }
.voice-text { margin-top: 13px; color: var(--muted); font-size: 13px; }
.voice-text summary { cursor: pointer; }
.voice-text > div { margin-top: 7px; color: var(--text); }

.processing { display: flex; align-items: center; gap: 9px; color: var(--muted); font-size: 14px; }
.processing-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); animation: pulse 1s infinite alternate; }
@keyframes pulse { from { opacity: .35; } to { opacity: 1; } }

.composer { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 10px; }
textarea {
  resize: vertical;
  min-height: 58px;
  max-height: 180px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--bg);
  color: var(--text);
  padding: 14px;
  outline: none;
}
textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.composer button {
  border: 0;
  border-radius: 12px;
  background: var(--accent);
  color: #17191a;
  padding: 0 22px;
  font-weight: 750;
}
.composer button:disabled { opacity: .65; cursor: wait; }
.composer .voice-button {
  min-width: 104px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  transition: border-color .15s ease, background .15s ease, transform .15s ease;
}
.composer .voice-button:not(:disabled):hover { border-color: var(--accent); }
.composer .voice-button.recording {
  border-color: #ff6b7d;
  background: rgba(255, 107, 125, .16);
  color: #ffdce1;
  transform: scale(.98);
}
.error-text { color: #ff9abc; }

@media (max-width: 920px) {
  .app-shell { grid-template-columns: 1fr; padding: 10px; }
  .side-panel { order: 2; }
  .chat-panel { min-height: 80vh; padding: 15px; }
  .chat-header { display: grid; }
  .header-note { text-align: left; }
  .composer { grid-template-columns: 1fr; }
  .composer button { min-height: 48px; }
  .bar-row { grid-template-columns: minmax(90px, 150px) minmax(80px, 1fr) auto; }
}

/* DEV_MODE trace panel */
.dev-panel {
  min-height: calc(100vh - 40px);
  max-height: calc(100vh - 40px);
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 14px;
}
.app-shell.dev-enabled { grid-template-columns: 280px minmax(460px, 1fr) minmax(360px, .78fr); }
.dev-header { display: flex; justify-content: space-between; gap: 12px; align-items: flex-start; padding-bottom: 12px; border-bottom: 1px solid var(--border); }
.dev-header h2 { font-size: 20px; }
.dev-header-actions { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px; }
.dev-clear-button:disabled { opacity: .6; cursor: wait; }
.dev-clear-button { border: 1px solid var(--border); border-radius: 8px; background: var(--surface-2); color: var(--muted); padding: 6px 9px; font-size: 12px; }
.dev-request-meta { margin: 12px 0; color: var(--muted); font-size: 12px; overflow-wrap: anywhere; }
.dev-warning-box { border: 1px solid rgba(255, 185, 66, .55); border-radius: 10px; padding: 10px; background: rgba(255, 185, 66, .08); margin-bottom: 10px; }
.dev-warning-title { font-size: 12px; font-weight: 800; color: var(--warning); margin-bottom: 7px; }
.dev-warning-item { font-size: 12px; color: var(--text); margin-top: 5px; overflow-wrap: anywhere; }
.dev-events { display: grid; gap: 8px; }
.dev-event { border: 1px solid var(--border); border-radius: 10px; background: rgba(32,35,38,.58); overflow: hidden; }
.dev-event[data-severity="ok"] { border-left: 3px solid var(--success); }
.dev-event[data-severity="warning"] { border-left: 3px solid var(--warning); }
.dev-event[data-severity="error"] { border-left: 3px solid var(--error); }
.dev-event summary { cursor: pointer; list-style: none; display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 8px; padding: 9px 10px; }
.dev-event summary::-webkit-details-marker { display: none; }
.dev-stage { font-size: 12px; font-weight: 750; overflow-wrap: anywhere; }
.dev-duration { font-size: 11px; color: var(--muted); font-variant-numeric: tabular-nums; }
.dev-event-body { border-top: 1px solid var(--border); padding: 9px; display: grid; gap: 8px; }
.dev-event-section-title { color: var(--muted); font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; }
.dev-json { margin: 0; max-height: 330px; overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; background: #1c1f21; border-radius: 7px; padding: 8px; font: 11px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; color: #dce1e4; }
.dev-warning-inline { font-size: 11px; color: var(--warning); }
.dev-error-inline { font-size: 11px; color: #ff9abc; }
.dev-lineage-card { border: 1px solid var(--border); border-radius: 8px; padding: 8px; font-size: 11px; }
.dev-lineage-card + .dev-lineage-card { margin-top: 6px; }
.dev-snapshot-button { margin-top: 6px; border: 1px solid var(--border); border-radius: 7px; background: var(--surface-2); color: var(--text); padding: 5px 7px; font-size: 11px; }
.dev-payload-viewer { position: sticky; bottom: 0; margin-top: 12px; border: 1px solid var(--accent); border-radius: 10px; background: #1c1f21; padding: 9px; box-shadow: 0 -8px 25px rgba(0,0,0,.28); }
.dev-payload-header { display: flex; justify-content: space-between; gap: 8px; align-items: center; margin-bottom: 8px; font-size: 12px; }
.dev-payload-viewer pre { margin: 0; max-height: 55vh; overflow: auto; white-space: pre-wrap; overflow-wrap: anywhere; font: 11px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }
.dev-diff { display: grid; grid-template-columns: 1fr 1fr; gap: 7px; }
.dev-diff > div { min-width: 0; }

@media (max-width: 1320px) {
  .app-shell.dev-enabled { grid-template-columns: 240px minmax(420px, 1fr) minmax(330px, .7fr); gap: 12px; padding: 12px; }
}
@media (max-width: 1080px) {
  .app-shell.dev-enabled { grid-template-columns: 1fr; }
  .app-shell.dev-enabled .dev-panel { order: 3; max-height: none; min-height: 40vh; }
}

/* Structured presentation layer */
.chart-carousel { margin-top: 8px; }
.chart-carousel-viewport { overflow: hidden; }
.chart-carousel-container { display: flex; touch-action: pan-y pinch-zoom; }
.chart-carousel-slide { flex: 0 0 100%; min-width: 0; }
.chart-carousel-slide .result-chart-wrap { margin-left: 0; margin-right: 0; }
.chart-carousel-controls { display: flex; align-items: center; justify-content: center; gap: 10px; margin-top: 4px; }
.chart-carousel-button { width: 34px; height: 30px; border: 1px solid var(--border); border-radius: 8px; background: var(--surface-2); color: var(--text); cursor: pointer; }
.chart-carousel-button:disabled { opacity: .4; cursor: default; }
.chart-carousel-dots { display: flex; align-items: center; justify-content: center; gap: 7px; min-width: 56px; }
.chart-carousel-dot { width: 8px; height: 8px; border: 0; border-radius: 999px; padding: 0; background: var(--muted); opacity: .42; cursor: pointer; }
.chart-carousel-dot.active { opacity: 1; background: var(--accent); }
.result-chart-wrap { margin: 12px 0 16px; }
.result-chart-title { margin-bottom: 6px; color: var(--muted); font-size: 13px; font-weight: 650; }
.result-chart { width: 100%; min-height: 300px; }
.chart-fallback { padding: 10px 0; color: var(--muted); font-size: 13px; }
.result-table-note { margin-top: 8px; color: var(--muted); font-size: 12px; }
.result-kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 9px; margin: 10px 0 14px; }
.result-kpi { border: 1px solid var(--border); border-radius: 10px; background: rgba(32, 35, 38, .5); padding: 11px; }
.result-kpi-label { color: var(--muted); font-size: 12px; }
.result-kpi-value { margin-top: 3px; font-size: 24px; font-weight: 750; font-variant-numeric: tabular-nums; }
.result-kpi-context { margin-top: 5px; color: var(--muted); font-size: 11px; }

@media (max-width: 600px) {
  .result-table-controls { align-items: stretch; flex-direction: column; }
  .result-table-pager { flex-wrap: wrap; }
  .result-chart { min-height: 250px; }
}