:root {
  --bg: #0f141b;
  --panel: #151c25;
  --panel-2: #1b2430;
  --border: #2b3746;
  --text: #edf2f7;
  --muted: #9eacba;
  --soft: #c9d3dd;
  --critical: #ff6b6b;
  --high: #ffb35c;
  --medium: #f4d35e;
  --low: #76c7c0;
  --info: #8ab4f8;
  --ok: #72d59d;
  --focus: #c5d8ff;
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: linear-gradient(180deg, #0d1218 0%, var(--bg) 28%, #101720 100%);
  color: var(--text);
  min-height: 100vh;
}
button { font: inherit; }
button:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 68px;
  padding: 12px clamp(16px, 3vw, 36px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: rgba(15, 20, 27, 0.94);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.brand-wrap, .context-wrap { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 12px;
  display: grid; place-items: center;
  background: #eaf2ff; color: #101720; font-weight: 900;
}
.brand-wrap strong { display: block; letter-spacing: .08em; font-size: .92rem; }
.brand-wrap span { display: block; color: var(--muted); font-size: .78rem; margin-top: 2px; }
.context-pill, .context-button {
  min-height: 40px; border-radius: 999px; border: 1px solid var(--border);
  display: inline-flex; align-items: center; gap: 8px;
}
.context-pill { padding: 0 12px; color: var(--soft); background: var(--panel); font-size: .8rem; }
.context-button { padding: 0 14px; background: var(--panel-2); color: var(--text); cursor: default; }

.page-shell { width: min(1500px, 100%); margin: 0 auto; padding: 28px clamp(16px, 3vw, 36px) 56px; }
.hero { display: flex; align-items: end; justify-content: space-between; gap: 28px; margin: 8px 0 24px; }
.eyebrow { margin: 0 0 8px; text-transform: uppercase; letter-spacing: .12em; font-size: .72rem; color: var(--muted); font-weight: 800; }
h1 { margin: 0; font-size: clamp(2rem, 4vw, 3.6rem); max-width: 900px; line-height: 1.02; letter-spacing: -.04em; }
.hero-copy { color: var(--muted); max-width: 760px; line-height: 1.65; margin: 14px 0 0; }
.sync-card { min-width: min(360px, 100%); display: flex; gap: 12px; align-items: start; padding: 16px; border: 1px solid var(--border); border-radius: 18px; background: rgba(21, 28, 37, .84); }
.sync-card strong, .sync-card span { display: block; }
.sync-card span { color: var(--muted); margin-top: 4px; font-size: .82rem; line-height: 1.4; }
.status-icon { line-height: 1; margin-top: 3px; }
.status-ok { color: var(--ok); }

.summary-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 0 0 22px; }
.summary-card { padding: 16px; background: var(--panel); border: 1px solid var(--border); border-radius: 18px; }
.summary-card .value { font-size: 1.8rem; font-weight: 800; letter-spacing: -.04em; }
.summary-card .label { color: var(--soft); margin-top: 6px; font-size: .88rem; }
.summary-card .meta { color: var(--muted); margin-top: 6px; font-size: .75rem; }

.workspace { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(360px, .9fr); gap: 18px; align-items: start; }
.queue-panel, .detail-panel { border: 1px solid var(--border); border-radius: 22px; background: rgba(21, 28, 37, .9); overflow: hidden; }
.queue-panel { padding: 18px; }
.detail-panel { position: sticky; top: 86px; min-height: 560px; padding: 20px; }
.section-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 14px; }
h2 { margin: 0; font-size: 1.24rem; letter-spacing: -.02em; }
.ghost-button, .filter-chip, .card-action {
  min-height: 44px; border: 1px solid var(--border); background: var(--panel-2); color: var(--soft); border-radius: 12px; padding: 0 14px; cursor: pointer;
}
.ghost-button:hover, .filter-chip:hover, .card-action:hover { border-color: #4a5b70; color: var(--text); }
.filters { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 4px; scrollbar-width: thin; }
.filter-chip { flex: 0 0 auto; border-radius: 999px; }
.filter-chip.active { background: #eaf2ff; color: #101720; border-color: #eaf2ff; font-weight: 800; }

.queue { display: grid; gap: 10px; margin-top: 14px; }
.signal-card { width: 100%; text-align: left; border: 1px solid var(--border); border-radius: 18px; background: #121922; color: var(--text); padding: 0; overflow: hidden; cursor: pointer; }
.signal-card:hover, .signal-card.selected { border-color: #566b83; background: #151f2a; }
.signal-main { padding: 16px; display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 12px; }
.severity-dot { width: 24px; height: 24px; display: grid; place-items: center; border-radius: 8px; font-weight: 900; border: 1px solid currentColor; }
.severity-CRITICAL { color: var(--critical); }
.severity-HIGH { color: var(--high); }
.severity-MEDIUM { color: var(--medium); }
.severity-LOW { color: var(--low); }
.severity-INFO { color: var(--info); }
.signal-title-row { display: flex; justify-content: space-between; gap: 10px; align-items: start; }
.signal-title { margin: 0; font-size: 1rem; }
.signal-kind { flex: 0 0 auto; color: var(--muted); font-size: .72rem; border: 1px solid var(--border); padding: 4px 7px; border-radius: 999px; }
.signal-subject { color: var(--soft); margin: 5px 0 0; font-size: .9rem; }
.signal-fact { margin: 12px 0 0; color: var(--text); line-height: 1.5; }
.signal-meta { display: flex; flex-wrap: wrap; gap: 8px 14px; margin-top: 11px; color: var(--muted); font-size: .78rem; }
.signal-next { border-top: 1px solid var(--border); padding: 12px 16px; display: flex; justify-content: space-between; gap: 14px; align-items: center; color: var(--soft); background: rgba(27, 36, 48, .55); }
.signal-next span:first-child { color: var(--muted); font-size: .76rem; }
.signal-next strong { font-size: .88rem; }

.empty-state { min-height: 500px; display: grid; place-content: center; text-align: center; max-width: 420px; margin: auto; }
.empty-icon { font-size: 3rem; color: var(--muted); margin-bottom: 12px; }
.empty-state p { color: var(--muted); line-height: 1.6; }
.detail-kicker { color: var(--muted); font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; margin: 0 0 8px; }
.detail-title { font-size: 1.55rem; margin: 0; }
.detail-subtitle { color: var(--soft); margin: 8px 0 18px; }
.detail-block { border-top: 1px solid var(--border); padding: 16px 0; }
.detail-block h3 { margin: 0 0 10px; font-size: .85rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.detail-block p { margin: 0; line-height: 1.6; color: var(--soft); }
.detail-list { display: grid; gap: 9px; margin: 0; padding: 0; list-style: none; }
.detail-list li { display: flex; justify-content: space-between; gap: 16px; border-bottom: 1px dashed #2d3948; padding-bottom: 9px; }
.detail-list span { color: var(--muted); }
.detail-list strong { text-align: right; font-weight: 700; }
.action-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
.card-action.primary { background: #eaf2ff; color: #101720; border-color: #eaf2ff; font-weight: 800; }
.demo-banner { margin-top: 14px; padding: 11px 12px; border: 1px dashed #4a5b70; border-radius: 12px; color: var(--muted); font-size: .78rem; line-height: 1.5; }
.ai-box { margin-top: 10px; padding: 14px; border-radius: 14px; background: #101720; border: 1px solid var(--border); color: var(--soft); line-height: 1.6; }

.footer-note { border-top: 1px solid var(--border); color: var(--muted); padding: 18px clamp(16px, 3vw, 36px) 30px; font-size: .8rem; }

@media (max-width: 1179px) {
  .workspace { grid-template-columns: 1fr; }
  .detail-panel { position: static; min-height: 0; }
  .hero { align-items: stretch; flex-direction: column; }
  .sync-card { min-width: 0; }
}

@media (max-width: 900px) {
  .summary-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .context-pill { display: none; }
}

@media (max-width: 767px) {
  .topbar { min-height: 62px; padding: 10px 14px; }
  .brand-wrap span { display: none; }
  .brand-mark { width: 36px; height: 36px; }
  .context-button { max-width: 48vw; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
  .page-shell { padding: 20px 12px 40px; }
  h1 { font-size: clamp(1.8rem, 9vw, 2.6rem); }
  .summary-grid { grid-template-columns: 1fr 1fr; gap: 8px; }
  .summary-card { padding: 13px; border-radius: 15px; }
  .summary-card .value { font-size: 1.45rem; }
  .queue-panel, .detail-panel { border-radius: 18px; }
  .queue-panel { padding: 12px; }
  .section-head { align-items: end; }
  .ghost-button { padding: 0 11px; }
  .signal-main { padding: 14px 12px; grid-template-columns: 26px minmax(0, 1fr); gap: 9px; }
  .signal-title-row { display: block; }
  .signal-kind { display: inline-block; margin-top: 7px; }
  .signal-next { align-items: start; flex-direction: column; gap: 3px; padding: 11px 12px; }
  .detail-panel { padding: 16px 14px; }
  .action-row { grid-template-columns: 1fr; }
}

@media (max-width: 420px) {
  .summary-grid { grid-template-columns: 1fr; }
}