:root {
  --ink: #17201b;
  --muted: #6c746f;
  --paper: #f5f1e8;
  --panel: #fffaf0;
  --line: #d8cfbd;
  --accent: #c35b2e;
  --accent-dark: #7d341f;
  --good: #2f7d4a;
  --bad: #9d2f2f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(195, 91, 46, 0.12), transparent 34rem),
    linear-gradient(135deg, #f9f5ec, #ece4d4);
  font-family: "Avenir Next", "Segoe UI", sans-serif;
}

button,
input {
  font: inherit;
}

button {
  border: 0;
  color: white;
  background: var(--accent);
  padding: 0.75rem 0.95rem;
  cursor: pointer;
  transition: transform 140ms ease, background 140ms ease;
}

button:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
}

.operator-shell {
  display: grid;
  grid-template-columns: 21rem minmax(28rem, 1fr) 27rem;
  min-height: 100vh;
}

.operator-rail,
.inspector {
  padding: 1.4rem;
  border-color: var(--line);
  background: rgba(255, 250, 240, 0.82);
  backdrop-filter: blur(18px);
}

.operator-rail {
  border-right: 1px solid var(--line);
}

.inspector {
  border-left: 1px solid var(--line);
  overflow: auto;
}

.brand-block h1,
.stage-header h2 {
  margin: 0;
  line-height: 1;
}

.brand-block h1 {
  font-size: 2.1rem;
  letter-spacing: -0.06em;
}

.brand-block p,
.small-note,
.eyebrow {
  color: var(--muted);
}

.eyebrow {
  margin: 0 0 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
}

.upload-panel {
  display: grid;
  gap: 0.7rem;
  margin: 1.6rem 0;
}

.upload-panel input {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--panel);
  padding: 0.7rem;
}

.section-heading,
.stage-header,
.run-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.run-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.run-row {
  width: 100%;
  margin: 0 0 0.55rem;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  text-align: left;
}

.document-stage {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 1rem;
  padding: 1.4rem;
}

.status-pill {
  color: white;
  background: var(--muted);
  padding: 0.45rem 0.7rem;
  text-transform: uppercase;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

.status-pill.completed {
  background: var(--good);
}

.status-pill.failed {
  background: var(--bad);
}

#pdf-preview {
  width: 100%;
  min-height: 78vh;
  border: 1px solid var(--line);
  background: white;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.4rem;
  position: sticky;
  top: 0;
  background: var(--panel);
  padding-bottom: 0.8rem;
}

.tab {
  color: var(--ink);
  border: 1px solid var(--line);
  background: transparent;
  padding: 0.55rem 0.4rem;
}

.tab.active {
  color: white;
  background: var(--ink);
}

.panel {
  display: none;
}

.panel.active {
  display: block;
  animation: reveal 180ms ease both;
}

table {
  width: 100%;
  border-collapse: collapse;
}

td,
th {
  border-bottom: 1px solid var(--line);
  padding: 0.55rem 0;
  vertical-align: top;
}

pre {
  overflow: auto;
  max-height: 65vh;
  border: 1px solid var(--line);
  background: #161a17;
  color: #f8f2e7;
  padding: 1rem;
}

.evidence-item,
.review-item,
.schema-hold {
  border-top: 1px solid var(--line);
  padding: 0.9rem 0;
}

.evidence-item strong,
.review-item strong,
.schema-hold strong {
  display: block;
}

.hold-evidence {
  color: var(--muted);
  margin-top: 0.45rem;
}

.schema-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
  margin: 0.8rem 0 1.2rem;
}

.schema-card {
  border: 1px solid var(--line);
  background: rgba(255, 250, 240, 0.72);
  padding: 0.85rem;
}

.schema-card span {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.schema-card strong {
  display: block;
  margin-top: 0.25rem;
  font-size: 1.15rem;
}

@keyframes reveal {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1100px) {
  .operator-shell {
    grid-template-columns: 1fr;
  }

  .operator-rail,
  .inspector {
    border: 0;
  }
}