:root {
  --paper: #EDEAE2;
  --paper-dim: #E2DED2;
  --paper-card: #F5F3EC;
  --ink: #1F2E2B;
  --ink-soft: #55625C;
  --copper: #A85C32;
  --copper-dim: #8C4B29;
  --verdigris: #5C7A6E;
  --rust: #8B3A3E;
  --line: #C7C0AE;
  --sidebar-bg: #16211D;
  --sidebar-ink: #E8E3D8;
  --sidebar-ink-dim: #93A199;

  --font-display: 'Spectral', Georgia, serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

.shell {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}

/* ---------------- Sidebar ---------------- */

.sidebar {
  background: var(--sidebar-bg);
  color: var(--sidebar-ink);
  padding: 28px 18px;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 26px;
  margin-bottom: 22px;
  border-bottom: 1px solid rgba(232, 227, 216, 0.15);
}

.brand-mark {
  font-size: 22px;
  color: var(--copper);
  transform: rotate(-12deg);
  display: inline-block;
}

.brand-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.02em;
}

.brand-tag {
  font-size: 11px;
  color: var(--sidebar-ink-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.step-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  background: transparent;
  border: none;
  color: var(--sidebar-ink-dim);
  text-align: left;
  padding: 11px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 13px;
  line-height: 1.25;
  transition: background 0.15s ease, color 0.15s ease;
}

.step-btn:hover {
  background: rgba(232, 227, 216, 0.06);
  color: var(--sidebar-ink);
}

.step-btn.active {
  background: rgba(168, 92, 50, 0.16);
  color: var(--sidebar-ink);
}

.step-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--copper);
  min-width: 22px;
}

.step-btn.active .step-num { color: var(--copper); }

.settings-btn {
  margin-top: 12px;
  background: transparent;
  border: 1px solid rgba(232, 227, 216, 0.18);
  color: var(--sidebar-ink-dim);
  padding: 10px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 12.5px;
  text-align: left;
}

.settings-btn:hover { color: var(--sidebar-ink); border-color: rgba(232,227,216,0.35); }
.settings-btn.active { background: rgba(168, 92, 50, 0.16); color: var(--sidebar-ink); }

/* ---------------- Main ---------------- */

.main {
  padding: 48px 56px 80px;
  max-width: 880px;
}

.panel { display: none; }
.panel.active { display: block; animation: fade-in 0.2s ease; }

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

.panel-head { margin-bottom: 28px; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--copper-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 10px;
}

.panel-head h1 {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 600;
  margin: 0 0 10px;
  color: var(--ink);
}

.lede {
  font-size: 14.5px;
  color: var(--ink-soft);
  max-width: 60ch;
  line-height: 1.55;
  margin: 0;
}

/* ---------------- Forms ---------------- */

.run-form {
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 28px;
}

.run-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  color: var(--ink-soft);
  font-weight: 500;
}

.run-form label.small { font-size: 12px; }

.run-form input[type="text"],
.run-form input[type="number"],
.run-form input[type="password"],
.run-form select,
.run-form textarea {
  font-family: var(--font-mono);
  font-size: 13.5px;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
}

.run-form textarea { resize: vertical; }

.run-form input:focus,
.run-form select:focus,
.run-form textarea:focus {
  outline: 2px solid var(--copper);
  outline-offset: 1px;
}

.row-inline {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.row-inline label { flex: 1; min-width: 140px; }

.run-btn {
  align-self: flex-start;
  background: var(--copper);
  color: #FBF8F1;
  border: none;
  padding: 11px 22px;
  border-radius: 6px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 13.5px;
  cursor: pointer;
  transition: background 0.15s ease;
}
.run-btn:hover { background: var(--copper-dim); }
.run-btn:disabled { background: var(--line); color: var(--ink-soft); cursor: wait; }

.status-tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  padding: 2px 7px;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-left: 6px;
}
.status-tag.ok { background: rgba(92,122,110,0.18); color: var(--verdigris); }
.status-tag.missing { background: rgba(139,58,62,0.14); color: var(--rust); }

/* ---------------- Results ---------------- */

.result-zone { min-height: 20px; }

.progress-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-soft);
  margin-bottom: 18px;
}

.progress-track {
  flex: 1;
  height: 6px;
  background: var(--paper-dim);
  border: 1px solid var(--line);
  border-radius: 4px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--copper);
  transition: width 0.3s ease;
}

.spinner-line {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-soft);
  display: flex;
  align-items: center;
  gap: 10px;
}
.spinner-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--copper);
  animation: pulse 1s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 0.25; } 50% { opacity: 1; } }

.error-box {
  background: rgba(139,58,62,0.08);
  border: 1px solid rgba(139,58,62,0.3);
  color: var(--rust);
  padding: 12px 14px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 16px;
}

.result-card {
  position: relative;
  background: var(--paper-card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 20px 22px 22px;
}

.result-meta {
  display: flex;
  gap: 22px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-soft);
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.result-meta b { color: var(--ink); }

.result-table-wrap { overflow-x: auto; }

table.result-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
table.result-table th {
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-soft);
  border-bottom: 1px solid var(--line);
  padding: 8px 10px;
  cursor: pointer;
  white-space: nowrap;
}
table.result-table th:hover { color: var(--copper); }
table.result-table td {
  padding: 8px 10px;
  border-bottom: 1px solid rgba(199,192,174,0.5);
  font-family: var(--font-mono);
  vertical-align: middle;
}
table.result-table tr:last-child td { border-bottom: none; }

.score-bar-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
}
.score-bar-track {
  width: 70px;
  height: 5px;
  background: var(--paper-dim);
  border-radius: 3px;
  overflow: hidden;
}
.score-bar-fill { height: 100%; background: var(--verdigris); }

.badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge.registered { background: rgba(139,58,62,0.14); color: var(--rust); }
.badge.available { background: rgba(92,122,110,0.16); color: var(--verdigris); }
.badge.unknown { background: rgba(85,98,92,0.12); color: var(--ink-soft); }

.actions-row {
  display: flex;
  gap: 10px;
  margin-top: 18px;
  flex-wrap: wrap;
}

.ghost-btn {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink-soft);
  padding: 7px 14px;
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 12.5px;
  cursor: pointer;
}
.ghost-btn:hover { border-color: var(--copper); color: var(--copper-dim); }

.chain-btn {
  background: transparent;
  border: 1px dashed var(--verdigris);
  color: var(--verdigris);
  padding: 7px 14px;
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: 12.5px;
  cursor: pointer;
}
.chain-btn:hover { background: rgba(92,122,110,0.08); }

/* signature element: the "assayed" stamp on completed cards */
.stamp {
  position: absolute;
  top: 14px;
  right: 18px;
  width: 78px;
  height: 78px;
  border: 2px solid var(--verdigris);
  border-radius: 50%;
  color: var(--verdigris);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transform: rotate(-9deg);
  opacity: 0.75;
  line-height: 1.3;
  pointer-events: none;
}
.stamp::before, .stamp::after {
  content: "";
  position: absolute;
  inset: 6px;
  border: 1px solid var(--verdigris);
  border-radius: 50%;
  opacity: 0.5;
}

@media (max-width: 760px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: relative; height: auto; }
  .main { padding: 28px 20px 60px; }
}