:root {
  --bg: #0a0b0d;
  --bg-panel: #111318;
  --bg-elevated: #171a20;
  --border: #252a33;
  --border-focus: #3d4654;
  --text: #e6e8ec;
  --text-dim: #8b939e;
  --text-muted: #5c6570;
  --accent: #c9a227;
  --accent-dim: #8a7020;
  --accent-glow: rgba(201, 162, 39, 0.15);
  --success: #3d9a6a;
  --danger: #c45c5c;
  --info: #4a7ab0;
  --mono: "SF Mono", "Fira Code", "Consolas", "Liberation Mono", monospace;
  --sans: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --radius: 6px;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.app {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px 32px;
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding: 28px 0 16px;
  border-bottom: 1px solid var(--border);
  gap: 24px;
  flex-wrap: wrap;
}

.brand .logo {
  font-family: var(--mono);
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text);
}

.brand .logo .accent {
  color: var(--accent);
}

.brand .tagline {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 2px;
  letter-spacing: 0.02em;
}

.header-stats {
  display: flex;
  gap: 28px;
}

.stat {
  text-align: right;
}

.stat-label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  font-weight: 600;
}

.stat-value {
  font-family: var(--mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--text);
}

.stat-value.positive {
  color: var(--success);
}

/* Banner */
.banner {
  background: linear-gradient(90deg, var(--accent-glow), transparent 70%);
  border: 1px solid rgba(201, 162, 39, 0.25);
  border-radius: var(--radius);
  padding: 12px 16px;
  margin: 16px 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.banner-text {
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
}

.banner-sub {
  font-size: 11px;
  color: var(--text-dim);
}

/* Live Lockout Bar */
.lockout-bar {
  background: rgba(196, 92, 92, 0.12);
  border: 1px solid rgba(196, 92, 92, 0.4);
  border-radius: var(--radius);
  margin: 0 0 16px;
  overflow: hidden;
}

.lockout-bar.hidden {
  display: none;
}

.lockout-inner {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 14px;
  flex-wrap: wrap;
}

.lockout-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--danger);
}

.lockout-timer {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 700;
  color: var(--danger);
  min-width: 70px;
}

.lockout-msg {
  font-size: 12px;
  color: var(--text-dim);
}

.lockout-track {
  height: 3px;
  background: rgba(196, 92, 92, 0.2);
}

.lockout-fill {
  height: 100%;
  background: var(--danger);
  width: 100%;
  transition: width 1s linear;
}

/* Nav */
.nav {
  display: flex;
  gap: 4px;
  margin-bottom: 20px;
  flex-wrap: wrap;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0;
}

.nav-btn {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 500;
  padding: 10px 14px;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
  font-family: var(--sans);
}

.nav-btn:hover {
  color: var(--text);
}

.nav-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* Main / Views */
.main {
  flex: 1;
}

.view {
  display: none;
}

.view.active {
  display: block;
  animation: fadeIn 0.2s ease;
}

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

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.panel h2 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.panel-desc {
  color: var(--text-dim);
  font-size: 13.5px;
  margin-bottom: 20px;
  max-width: 640px;
}

.badge {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  border-radius: 4px;
  background: rgba(201, 162, 39, 0.12);
  color: var(--accent);
  border: 1px solid rgba(201, 162, 39, 0.3);
}

.badge.shielded {
  background: rgba(74, 122, 176, 0.12);
  color: #7ba3d4;
  border-color: rgba(74, 122, 176, 0.3);
}

/* Forms */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: 6px;
  letter-spacing: 0.03em;
}

select, textarea, input[type="text"] {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  padding: 10px 12px;
  transition: border-color 0.15s;
}

select:focus, textarea:focus, input[type="text"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

textarea {
  resize: vertical;
  min-height: 140px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.45;
}

.form-actions {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}

/* Buttons */
.btn {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 600;
  padding: 9px 16px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.btn.primary {
  background: var(--accent);
  color: #0a0b0d;
  border-color: var(--accent);
}

.btn.primary:hover {
  background: #d4ad35;
}

.btn.secondary {
  background: var(--bg-elevated);
  color: var(--text);
  border-color: var(--border);
}

.btn.secondary:hover {
  border-color: var(--border-focus);
  background: #1c2028;
}

.btn.ghost {
  background: transparent;
  color: var(--text-dim);
  border-color: transparent;
}

.btn.ghost:hover {
  color: var(--text);
}

.btn.danger {
  color: var(--danger);
}

.btn.danger:hover {
  background: rgba(196, 92, 92, 0.1);
}

/* Result Box */
.result-box {
  margin-top: 24px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-left: 3px solid var(--success);
  border-radius: var(--radius);
  padding: 16px;
}

.result-box.hidden {
  display: none;
}

.result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.result-title {
  font-weight: 600;
  color: var(--success);
  font-size: 14px;
}

.result-id {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-muted);
}

.result-body {
  font-size: 13.5px;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.55;
}

.result-meta {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  padding-top: 10px;
}

/* Verdict (Yes / No) */
.verdict {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  padding: 10px 14px;
  border-radius: var(--radius);
  border: 1px solid;
}

.verdict.answer-no {
  background: rgba(196, 92, 92, 0.08);
  border-color: rgba(196, 92, 92, 0.35);
}

.verdict.answer-yes {
  background: rgba(61, 154, 106, 0.08);
  border-color: rgba(61, 154, 106, 0.35);
}

.verdict-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.verdict-value {
  font-family: var(--mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.answer-no .verdict-value {
  color: var(--danger);
}

.answer-yes .verdict-value {
  color: var(--success);
}

.verdict-why {
  font-size: 13.5px;
  line-height: 1.5;
  margin-bottom: 8px;
  color: var(--text);
}

.ans-no {
  color: var(--danger);
}

.ans-yes {
  color: var(--success);
}

.r-why {
  font-size: 12px;
  color: var(--text-dim);
  margin: 4px 0 6px;
  line-height: 1.4;
}

/* Core Query */
.query-presets {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 16px;
}

.preset-btn {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 12px;
  padding: 6px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.15s;
}

.preset-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.core-response {
  margin-top: 20px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.core-response.hidden {
  display: none;
}

.core-label {
  background: var(--bg-elevated);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--info);
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
}

.core-body {
  padding: 16px;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--text);
  white-space: pre-wrap;
  font-family: var(--sans);
}

/* Receipts */
.receipts-controls {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}

.receipts-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 480px;
  overflow-y: auto;
}

.receipt-item {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 14px;
  font-size: 13px;
}

.receipt-item .r-header {
  display: flex;
  justify-content: space-between;
  margin-bottom: 6px;
}

.receipt-item .r-id {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
}

.receipt-item .r-time {
  font-size: 11px;
  color: var(--text-muted);
}

.receipt-item .r-cat {
  font-size: 11px;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.receipt-item .r-preview {
  color: var(--text-dim);
  font-size: 12.5px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.receipt-item .r-delta {
  margin-top: 6px;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--success);
}

.empty-state {
  text-align: center;
  color: var(--text-muted);
  padding: 40px 20px;
  font-size: 14px;
}

/* Export */
.export-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  margin-bottom: 20px;
}

.export-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
}

.export-card h3 {
  font-size: 14px;
  margin-bottom: 6px;
}

.export-card p {
  font-size: 12.5px;
  color: var(--text-dim);
  margin-bottom: 12px;
  min-height: 40px;
}

.file-input {
  display: block;
  margin-bottom: 8px;
  font-size: 12px;
  color: var(--text-dim);
}

.export-preview {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  margin-top: 16px;
}

.export-preview.hidden {
  display: none;
}

.export-preview pre {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  max-height: 280px;
  overflow: auto;
  white-space: pre-wrap;
  margin-bottom: 12px;
}

/* About */
.about-panel .lead {
  font-size: 15px;
  color: var(--text-dim);
  margin-bottom: 24px;
}

.about-section {
  margin-bottom: 20px;
}

.about-section h3 {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.about-section p, .about-section ul {
  font-size: 13.5px;
  color: var(--text);
  line-height: 1.55;
}

.about-section ul {
  padding-left: 18px;
}

.about-section li {
  margin-bottom: 4px;
}

.mono {
  font-family: var(--mono);
}

/* Footer */
.footer {
  margin-top: 32px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--mono);
}

/* Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--border-focus);
}

/* Responsive */
@media (max-width: 640px) {
  .header {
    flex-direction: column;
    align-items: flex-start;
  }
  .header-stats {
    width: 100%;
    justify-content: space-between;
  }
  .stat {
    text-align: left;
  }
}