:root {
  color-scheme: light;
  --fluent-blue: #0f6cbd;
  --fluent-blue-dark: #115ea3;
  --bar-blue: #0f56a4;
  --bg: #f5f5f5;
  --surface: #faf9f8;
  --panel: #ffffff;
  --panel-2: #f3f2f1;
  --text: #242424;
  --ink: #242424;
  --muted: #605e5c;
  --line: #edebe9;
  --accent: #0f6cbd;
  --accent-2: #c4651a;
  --danger: #d13438;
  --good: #107c10;
}

* { box-sizing: border-box; }
html, body { height: 100%; margin: 0; }
body {
  font-family: "Segoe UI", system-ui, -apple-system, Roboto, Arial, sans-serif;
  background: var(--surface);
  color: var(--text);
}

/* ===================== IcM portal chrome ===================== */
.icm { display: flex; flex-direction: column; min-height: 100vh; background: var(--surface); }

/* top bar */
.icm-bar { display: flex; align-items: center; gap: 14px; height: 48px; padding: 0 14px; background: var(--bar-blue); color: #fff; flex: none; position: sticky; top: 0; z-index: 30; }
.icm-bar-left { display: flex; align-items: center; gap: 12px; }
.waffle { font-size: 15px; opacity: .9; }
.icm-logo { font-weight: 700; font-size: 16px; display: flex; align-items: center; gap: 5px; }
.icm-logo-mark { font-size: 13px; }
.icm-search { flex: 1; max-width: 480px; margin: 0 auto; background: #fff; color: #605e5c; border-radius: 4px; height: 30px; display: flex; align-items: center; gap: 8px; padding: 0 12px; font-size: 13px; }
.icm-search-i { font-size: 12px; }
.icm-bar-right { display: flex; align-items: center; gap: 13px; }
.icm-assistant { background: #fff; color: var(--bar-blue); font-weight: 600; font-size: 12.5px; border-radius: 4px; padding: 4px 10px; display: inline-flex; align-items: center; gap: 5px; }
.icm-bar-icon { font-size: 13px; opacity: .92; position: relative; cursor: default; }
.icm-bar-icon .badge { position: absolute; top: -7px; right: -8px; background: var(--danger); color: #fff; font-size: 9px; font-weight: 700; border-radius: 999px; padding: 0 4px; }
.icm-avatar { width: 26px; height: 26px; border-radius: 50%; background: #c8553d; color: #fff; font-size: 11px; font-weight: 700; display: flex; align-items: center; justify-content: center; }

/* outage banner */
.icm-outage { display: flex; align-items: center; gap: 12px; min-height: 32px; padding: 4px 12px; background: #a4262c; color: #fff; font-size: 12.5px; flex: none; }
.pager { background: rgba(255,255,255,.18); border-radius: 3px; padding: 1px 8px; font-size: 11px; white-space: nowrap; }
.outage-text { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.outage-time { opacity: .8; margin-left: 6px; }
.outage-add { margin: 0 0 0 auto; background: #fff; color: #a4262c; border: none; border-radius: 4px; padding: 4px 10px; font-size: 12px; font-weight: 600; cursor: pointer; white-space: nowrap; }
.outage-x { opacity: .85; }

/* shell + left nav */
.icm-shell { flex: 1; display: flex; min-height: 0; }
.icm-nav { width: 210px; flex: none; background: #fff; border-right: 1px solid var(--line); padding: 4px 0; font-size: 13px; }
.nav-ham { padding: 8px 16px; color: var(--muted); }
.nav-item { display: flex; align-items: center; gap: 10px; padding: 7px 16px; color: var(--text); cursor: default; }
.nav-item .ni { width: 16px; text-align: center; font-size: 13px; }
.nav-item .nav-tri { color: var(--bar-blue); font-size: 10px; }
.nav-item .chev { margin-left: auto; color: #8a8886; font-size: 11px; }
.nav-item.active { color: var(--bar-blue); font-weight: 600; }
.nav-item:hover { background: #f3f2f1; }
.nav-sub { display: block; padding: 6px 16px 6px 42px; color: #444; cursor: default; }
.nav-sub:hover { background: #f3f2f1; }
.nav-sub.sel { color: var(--bar-blue); font-weight: 600; background: #eef4fc; box-shadow: inset 2px 0 0 var(--bar-blue); }
.beta { background: var(--muted); color: #fff; font-size: 9px; padding: 0 5px; border-radius: 3px; margin-left: 4px; vertical-align: middle; font-weight: 700; }

/* main scroll area holds the SignalPath experience */
.icm-main { flex: 1 1 auto; min-width: 0; overflow-y: auto; }
.app-shell { max-width: 1180px; margin: 0 auto; padding: 18px 24px 40px; }

/* IcM incident-context header (Sev badge + title + toolbar) */
.inc-head { display: flex; align-items: center; gap: 10px; margin-bottom: 4px; }
.sev { font-size: 12px; font-weight: 700; padding: 2px 9px; border-radius: 4px; color: #fff; }
.sev0 { background: #8a0b0b; }
.sev1 { background: var(--danger); }
.sev2 { background: var(--accent-2); }
.sev3 { background: #797775; }
.inc-id { font-size: 13px; color: var(--muted); font-weight: 600; }
.inc-status { display: inline-flex; align-items: center; gap: 5px; font-size: 12.5px; color: var(--good); font-weight: 600; }
.inc-status .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--good); display: inline-block; }
.inc-assignee { margin-left: auto; font-size: 12.5px; color: var(--muted); }
.inc-assignee strong { color: var(--text); }
.inc-title { font-size: 24px; font-weight: 600; margin: 6px 0 12px; }
.inc-toolbar { display: flex; align-items: center; gap: 2px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 4px 0; margin-bottom: 16px; flex-wrap: wrap; }
.tb { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--text); padding: 6px 12px; border-radius: 4px; cursor: default; }
.tb:hover { background: #f3f2f1; }
.tb .tbi { font-size: 12px; color: var(--bar-blue); }
.tb.hot { color: var(--bar-blue); font-weight: 600; }
.tb.more { color: var(--muted); }

/* ===================== SignalPath content (light Fluent) ===================== */
.hero { display: none; }
.hero-actions { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; flex-wrap: wrap; }
.eyebrow { text-transform: uppercase; letter-spacing: 0.18em; color: var(--accent); font-size: 0.75rem; margin-bottom: 4px; font-weight: 700; }
.subtitle { color: var(--muted); max-width: 720px; }
.hero-badge { background: #eff6fc; border: 1px solid #cfe4fa; border-radius: 999px; padding: 8px 14px; color: var(--accent); font-weight: 600; }
.hero-hint { color: var(--muted); font-size: 0.9rem; }

.card, .controls-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 16px 18px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}
.controls-card { margin-bottom: 16px; }
.controls-header h2, .graph-header h3, .summary-card h3, .recommendations-card h3 { margin: 0 0 6px; }
.controls-header p, .graph-header p { color: var(--muted); margin: 0 0 12px; }

.scenario-row { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.scenario-pill { background: #fff; color: var(--text); border: 1px solid var(--line); border-radius: 6px; padding: 7px 12px; cursor: pointer; font-size: 0.9rem; }
.scenario-pill:hover { border-color: var(--accent); color: var(--accent); background: #f7fbff; }

textarea {
  width: 100%; min-height: 110px; border-radius: 6px; border: 1px solid var(--line);
  background: #fff; color: var(--text); padding: 12px; resize: vertical;
  font-family: inherit; font-size: 14px;
}
textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.upload-area { margin-top: 10px; border: 1px dashed #c8c6c4; border-radius: 8px; padding: 10px; background: #faf9f8; color: var(--muted); }
.upload-area.drag-active { border-color: var(--accent); background: #eff6fc; }
.upload-area input { display: block; margin-top: 8px; }

button {
  margin-top: 10px; background: var(--fluent-blue); color: #fff; border: none; border-radius: 6px;
  padding: 9px 16px; font-weight: 600; cursor: pointer; font-size: 14px;
}
button:hover { background: var(--fluent-blue-dark); }

.executive-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.demo-flow-card ol { margin: 0; padding-left: 20px; color: var(--muted); }
.value-card p { color: var(--muted); margin: 0; }

.results-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 16px; margin-bottom: 16px; }
.timeline-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 16px; margin-bottom: 16px; }
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; }
.toggle-pill { display: inline-flex; align-items: center; gap: 6px; color: var(--muted); font-size: 0.92rem; }

.timeline-step { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 12px; }
.timeline-step .dot { width: 12px; height: 12px; border-radius: 999px; background: var(--accent); margin-top: 6px; box-shadow: 0 0 0 4px rgba(15,108,189,0.14); }
.timeline-step .title { font-weight: 700; margin-bottom: 2px; color: var(--text); }
.timeline-step .detail { color: var(--muted); font-size: 0.95rem; }
.archive-item { border-top: 1px solid var(--line); padding-top: 8px; margin-top: 8px; }
.archive-item:first-child { border-top: none; padding-top: 0; }
.archive-item .meta { color: var(--muted); font-size: 0.86rem; }

.summary-key { display: grid; gap: 7px; color: var(--muted); }
.summary-key strong { color: var(--text); }
.summary-pill { display: inline-block; margin-top: 10px; padding: 8px 10px; border-radius: 999px; background: #eff6fc; color: var(--accent); font-weight: 700; }

.recommendation { background: #faf9f8; border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; margin-top: 10px; }
.recommendation .score { color: var(--accent); font-weight: 700; }
.evidence { color: var(--muted); font-size: 0.92rem; margin-top: 6px; }
.recommendation .meta, .primary-contact .meta, .backup-item .meta { color: var(--muted); font-size: 0.9rem; line-height: 1.45; overflow-wrap: anywhere; }
.recommendation .meta a, .primary-contact .meta a, .backup-item .meta a { color: var(--accent); text-decoration: none; font-weight: 600; }
.recommendation .meta a:hover, .primary-contact .meta a:hover, .backup-item .meta a:hover { text-decoration: underline; }
.recommendation .rationale { margin: 4px 0; }
.recommendation.is-live { border-left: 3px solid var(--good); padding-left: 10px; }
.recommendation-title { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }

.graph-card { margin-top: 16px; }
.graph-controls { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; margin-top: 10px; }
.secondary-btn { margin-top: 0; background: #fff; color: var(--text); border: 1px solid var(--line); }
.secondary-btn:hover { background: #f3f2f1; }
.before-after { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 10px; }
.before-after .value-box { flex: 1; min-width: 140px; border-radius: 8px; padding: 10px; background: #faf9f8; border: 1px solid var(--line); }
.before-after .value-box strong { color: var(--accent-2); }
.scenario-compare { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; margin-top: 12px; }
.scenario-compare .compare-card { background: #faf9f8; border: 1px solid var(--line); border-radius: 8px; padding: 10px; }
.scenario-compare .compare-card strong { color: var(--accent); }

.layers-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin-top: 10px; }
.layer-card { background: #faf9f8; border: 1px solid var(--line); border-radius: 8px; padding: 12px; }
.layer-card .layer-name { font-weight: 700; color: var(--accent); margin-bottom: 4px; }
.layer-card .layer-description { color: var(--muted); font-size: 0.92rem; margin-bottom: 8px; }
.layer-result { border-top: 1px solid var(--line); padding-top: 8px; margin-top: 8px; }
.layer-result.is-live { border-left: 3px solid var(--good); padding-left: 8px; }
.layer-result strong { color: var(--text); }
.layer-result-title { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 4px; }
.live-tag { font-size: 0.64rem; font-weight: 800; letter-spacing: 0.06em; color: #fff; background: var(--good); border-radius: 999px; padding: 1px 7px; }
.layer-result .meta { color: var(--muted); font-size: 0.9rem; line-height: 1.45; overflow-wrap: anywhere; }
.meta-key { display: inline-block; min-width: 78px; color: var(--muted); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; }
.layer-result .evidence-line { margin-top: 4px; }
.layer-result .meta a { color: var(--accent); text-decoration: none; font-weight: 600; white-space: nowrap; }
.layer-result .meta a:hover { text-decoration: underline; }
.layer-result .suggested-action { color: var(--accent-2); margin-top: 4px; }
.section-copy { color: var(--muted); margin: 0; }

/* Evidence cascade trace rail (L1..L5) — ported from t-roweian branch */
.trace { background: #faf9f8; border: 1px solid var(--line); border-radius: 8px; padding: 14px; margin: 12px 0 16px; }
.trace-rail { display: flex; justify-content: space-between; gap: 6px; margin-bottom: 14px; }
.trace-node { display: flex; flex-direction: column; align-items: center; gap: 4px; flex: 1; position: relative; }
.trace-node:not(:last-child)::after {
  content: ''; position: absolute; top: 6px; left: 50%; width: 100%; height: 2px;
  background: var(--line); z-index: 0;
}
.trace-dot { width: 12px; height: 12px; border-radius: 50%; background: #c8c6c4; z-index: 1; }
.trace-node.fired .trace-dot { background: var(--fluent-blue); box-shadow: 0 0 0 4px rgba(15,108,189,0.18); }
.trace-layer { font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.03em; }
.trace-raw { font-size: 11px; font-family: ui-monospace, "Cascadia Code", monospace; color: var(--text); }
.trace-node.idle .trace-raw { color: #c8c6c4; }
.trace-detail { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.trace-detail li { font-size: 0.82rem; border-left: 2px solid var(--fluent-blue); padding-left: 10px; color: var(--text); }
.trace-detail li .live-tag { margin-left: 6px; }
.trace-source, .trace-weight { color: var(--muted); }
.trace-text { color: var(--muted); margin-top: 2px; }

.ado-status-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 10px; flex-wrap: wrap; }
.ado-status { display: inline-flex; align-items: center; gap: 8px; font-size: 0.9rem; font-weight: 600; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); background: #fff; }
.ado-status .ado-dot { width: 9px; height: 9px; border-radius: 999px; background: var(--muted); }
.ado-status.is-checking .ado-dot { background: var(--accent); animation: ado-blink 1s ease-in-out infinite; }
.ado-status.is-live { color: var(--good); border-color: #cdebd0; background: #eefaf0; }
.ado-status.is-live .ado-dot { background: var(--good); box-shadow: 0 0 0 3px rgba(16,124,16,0.18); }
.ado-status.is-mock { color: var(--accent-2); border-color: #f5d9a8; background: #fff7ed; }
.ado-status.is-mock .ado-dot { background: var(--accent-2); }
.ado-status.is-error { color: var(--danger); border-color: #f3c6cb; background: #fdeef0; }
.ado-status.is-error .ado-dot { background: var(--danger); }
@keyframes ado-blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

.icm-email-panel { margin: 6px 0 14px; border: 1px solid var(--line); border-radius: 8px; padding: 10px 14px; background: #faf9f8; }
.icm-email-panel summary { cursor: pointer; font-weight: 600; color: var(--text); }
.icm-email-panel summary:hover { color: var(--accent); }
.icm-email-input { width: 100%; min-height: 90px; margin: 10px 0; resize: vertical; }
.icm-ingested-list { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }
.icm-ingested-item { padding: 8px 12px; border-radius: 8px; background: #eefaf0; border: 1px solid #cdebd0; }
.icm-ingested-main { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
.icm-ingested-main a { color: var(--good); font-weight: 700; text-decoration: none; }
.icm-ingested-title { color: var(--text); font-weight: 600; }
.icm-ingested-meta { color: var(--muted); font-size: 0.82rem; margin-top: 2px; }

.reachout-card { margin-bottom: 16px; }
.channel-toggle { display: inline-flex; gap: 6px; }
.channel-btn { margin-top: 0; background: #fff; color: var(--text); border: 1px solid var(--line); padding: 6px 12px; font-size: 0.88rem; }
.channel-btn:hover { background: #f3f2f1; }
.channel-btn.is-active { background: var(--fluent-blue); color: #fff; border-color: transparent; }
.primary-contact { background: #eff6fc; border: 1px solid #cfe4fa; border-radius: 8px; padding: 12px; }
.primary-contact .contact-name { font-weight: 700; font-size: 1.05rem; color: var(--text); display: flex; align-items: center; gap: 8px; }
.primary-contact .meta { color: var(--muted); font-size: 0.92rem; margin-top: 2px; }
.visibility-badge { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; padding: 3px 8px; border-radius: 999px; background: #dff6dd; color: var(--good); font-weight: 600; }
.routed-note { margin-top: 8px; color: var(--accent-2); font-size: 0.9rem; }
.backup-contacts { margin-top: 12px; }
.backup-contacts .backup-title { font-weight: 700; color: var(--text); margin-bottom: 6px; }
.backup-item { border-top: 1px solid var(--line); padding-top: 8px; margin-top: 8px; color: var(--text); }
.backup-item .meta { color: var(--muted); font-size: 0.88rem; }
.outreach-message { margin-top: 12px; min-height: 170px; font-family: inherit; }
.outreach-actions { display: flex; align-items: center; gap: 12px; margin-top: 10px; }
.copy-status { color: var(--good); font-size: 0.9rem; }

/* dependency graph */
#graph-panel { background: #faf9f8; border: 1px solid var(--line); border-radius: 8px; min-height: 420px; padding: 16px; overflow: hidden; }
#graph-panel.is-presenting { min-height: 560px; }
svg { width: 100%; height: 420px; }
#graph-panel.is-presenting svg { height: 520px; }
.node { cursor: pointer; }
.node circle { stroke: #fff; stroke-width: 2px; fill: var(--fluent-blue); }
.node.is-root circle { fill: var(--accent-2); }
.node.is-affected circle { fill: var(--danger); }
.node.is-path circle { stroke: var(--accent); stroke-width: 3px; }
.node.is-default circle { fill: var(--fluent-blue); }
.node.is-live circle { fill: #0e700e; stroke: #2ea043; stroke-dasharray: 3 2; }
.node.is-live.is-root circle { fill: var(--accent-2); }
.node-label { fill: #fff; font-size: 12px; dominant-baseline: middle; text-anchor: middle; }
.edge { stroke: #c8c6c4; stroke-width: 2px; }
.node-details { margin-top: 12px; color: var(--muted); }

/* ---------------- Guided walkthrough ---------------- */
.tour-launch-btn { margin-top: 0; background: var(--accent-2); color: #fff; font-weight: 700; }
.tour-launch-btn:hover { background: #a9550f; }

.stepper { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.stepper-item { flex: 1; min-width: 120px; margin-top: 0; display: flex; align-items: center; gap: 10px; justify-content: flex-start;
  background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 12px 14px; color: var(--muted); cursor: pointer; transition: all 0.2s ease; }
.stepper-item:hover { border-color: var(--accent); color: var(--text); }
.stepper-num { display: inline-flex; align-items: center; justify-content: center; width: 26px; height: 26px; border-radius: 999px;
  background: #f3f2f1; color: var(--text); font-weight: 700; font-size: 0.9rem; flex-shrink: 0; }
.stepper-label { font-weight: 600; font-size: 0.95rem; }
.stepper-item.is-active { border-color: var(--accent); color: var(--text); background: #eff6fc; box-shadow: 0 1px 4px rgba(15,108,189,0.18); }
.stepper-item.is-active .stepper-num { background: var(--fluent-blue); color: #fff; }
.stepper-item.is-done .stepper-num { background: var(--good); color: #fff; font-size: 0; }
.stepper-item.is-done .stepper-num::after { content: '✓'; font-size: 0.95rem; }

.step-heading { display: flex; align-items: center; gap: 10px; }
.step-heading h2, .step-heading h3 { margin: 0; }
.step-badge { display: inline-block; padding: 4px 10px; border-radius: 999px; background: #eff6fc;
  color: var(--accent); font-size: 0.72rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.08em; white-space: nowrap; }

.tour-backdrop { position: fixed; inset: 0; background: transparent; z-index: 40; }
.tour-spotlight { position: relative; z-index: 45; border-radius: 10px;
  box-shadow: 0 0 0 3px var(--accent), 0 0 0 9999px rgba(0,0,0,0.45), 0 0 30px rgba(15,108,189,0.3);
  animation: tour-pulse 2s ease-in-out infinite; }
@keyframes tour-pulse {
  0%, 100% { box-shadow: 0 0 0 3px var(--accent), 0 0 0 9999px rgba(0,0,0,0.45), 0 0 24px rgba(15,108,189,0.24); }
  50% { box-shadow: 0 0 0 4px var(--accent), 0 0 0 9999px rgba(0,0,0,0.45), 0 0 44px rgba(15,108,189,0.42); }
}
.tour-popover { position: fixed; left: 50%; transform: translateX(-50%); max-width: 460px; width: calc(100% - 40px);
  background: #fff; border: 1px solid var(--line); border-radius: 10px;
  padding: 18px 20px; z-index: 60; box-shadow: 0 24px 60px rgba(0,0,0,0.25); }
.tour-popover-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.tour-step-counter { color: var(--accent); font-weight: 700; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.08em; }
.tour-close { margin-top: 0; background: transparent; color: var(--muted); border: none; font-size: 1rem; padding: 2px 8px; cursor: pointer; }
.tour-close:hover { color: var(--text); background: transparent; }
.tour-title { margin: 0 0 8px; font-size: 1.2rem; color: var(--text); }
.tour-body { margin: 0 0 14px; color: var(--muted); line-height: 1.5; }
.tour-progress { height: 6px; background: #f3f2f1; border-radius: 999px; overflow: hidden; margin-bottom: 14px; }
.tour-progress-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); width: 16%; transition: width 0.3s ease; }
.tour-controls { display: flex; justify-content: space-between; gap: 10px; }
.tour-controls button { margin-top: 0; }
.tour-controls #tour-next { flex: 1; }
.tour-controls #tour-prev { min-width: 90px; background: #fff; color: var(--text); border: 1px solid var(--line); }
.tour-controls #tour-prev:disabled { opacity: 0.4; cursor: not-allowed; }

@media (max-width: 1100px) {
  .icm-nav { display: none; }
}
@media (max-width: 900px) {
  .results-grid, .executive-row, .timeline-grid { grid-template-columns: 1fr; }
  .inc-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}