:root {
  --ink: #182b2d;
  --muted: #657575;
  --paper: #f7f9f6;
  --card: #ffffff;
  --border: #dfe6e0;
  --border-light: #edf2ed;
  --green: #235f4a;
  --green-hover: #174e3b;
  --lime: #c7f27a;
  --rail: #142c2c;
  --rail-hover: #263e3b;
  --rail-active: #2b4440;
  --blue: #2563eb;
  --cyan: #0891b2;
  --amber: #d97706;
  --red: #dc2626;
  --mono: ui-monospace, SFMono-Regular, Consolas, "Cascadia Code", monospace;
  --radius: 10px;
  --shadow: 0 4px 20px rgba(20, 44, 44, 0.06);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 14px/1.55 "Segoe UI", -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: 0.55; }
button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid #5b9f82;
  outline-offset: 2px;
}
[hidden] { display: none !important; }

/* Skip Link */
.skip-link {
  position: fixed;
  top: -100px;
  left: 20px;
  z-index: 100;
  background: white;
  padding: 12px 18px;
  border-radius: 6px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
  font-weight: 600;
}
.skip-link:focus { top: 12px; }

/* ---------------- Sidebar Rail ---------------- */
.rail {
  position: fixed;
  inset: 0 auto 0 0;
  width: 250px;
  background: var(--rail);
  color: #e9f1eb;
  padding: 28px 18px 20px;
  display: flex;
  flex-direction: column;
  z-index: 20;
  overflow-y: auto;
  overflow-x: hidden;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.8px;
  padding-bottom: 8px;
}
.brand-mark {
  background: var(--lime);
  color: var(--rail);
  width: 38px;
  height: 38px;
  border-radius: 9px;
  font-size: 24px;
  display: grid;
  place-items: center;
  position: relative;
  font-weight: 800;
  flex-shrink: 0;
}
.brand-mark span {
  position: absolute;
  right: 3px;
  top: 1px;
  font-size: 14px;
}
.brand small {
  display: block;
  font-size: 9px;
  letter-spacing: 2px;
  color: #a1b6af;
  margin-top: -2px;
  font-weight: 700;
}

.rail-label {
  font-size: 9.5px;
  letter-spacing: 1.5px;
  color: #8faea4;
  font-weight: 700;
  margin: 28px 10px 10px;
  text-transform: uppercase;
}
.rail-nav {
  display: grid;
  gap: 4px;
}
.rail-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 7px;
  color: #bacec5;
  font-weight: 500;
  font-size: 13px;
  transition: background 0.15s, color 0.15s;
}
.rail-nav a .ico {
  font-size: 17px;
  width: 20px;
  text-align: center;
  opacity: 0.85;
}
.rail-nav a:hover {
  background: var(--rail-hover);
  color: #ffffff;
}
.rail-nav a.active {
  background: var(--rail-active);
  color: var(--lime);
  font-weight: 600;
}
.rail-nav a.active .ico {
  opacity: 1;
  color: var(--lime);
}
.nav-count {
  margin-left: auto;
  font-size: 11px;
  background: #3b5349;
  color: #e2f4ed;
  padding: 1px 7px;
  border-radius: 5px;
  font-weight: 600;
}
.nav-count.alert {
  background: #f59e0b;
  color: #1f2937;
}

.rail-card {
  border: 1px solid #3d534a;
  background: linear-gradient(135deg, #243e33, #182e2b);
  padding: 16px 14px;
  border-radius: 10px;
  margin-top: 24px;
}
.tiny-label {
  font-size: 9px;
  letter-spacing: 1.5px;
  color: #94afa5;
  font-weight: 700;
}
.rail-card h3 {
  font-size: 16px;
  line-height: 1.35;
  letter-spacing: -0.4px;
  margin: 8px 0;
  color: #ffffff;
}
.rail-card p {
  color: #b0c6bc;
  font-size: 11.5px;
  line-height: 1.6;
  margin: 0;
}
.rail-card a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--lime);
  font-size: 11.5px;
  font-weight: 600;
  margin-top: 12px;
}

.rail-footer {
  margin-top: auto;
  padding-top: 24px;
  color: #acc1b7;
  font-size: 11px;
  display: grid;
  gap: 4px;
}
.rail-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  background: var(--lime);
  border-radius: 50%;
  margin-right: 6px;
  animation: pulse-dot 2.5s infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.9); }
}

/* ---------------- Workspace & Topbar ---------------- */
.workspace {
  margin-left: 250px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.topbar {
  height: 72px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
  gap: 16px;
}
.breadcrumb {
  color: var(--muted);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.breadcrumb span {
  color: #adb9b1;
  font-size: 12px;
}
.breadcrumb strong {
  font-weight: 600;
  color: var(--ink);
  font-size: 15px;
}
.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Connection indicator */
.conn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 11px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: white;
  color: var(--muted);
}
.conn .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #9ca3af;
}
.conn.live {
  background: #ecfdf5;
  border-color: #a7f3d0;
  color: #065f46;
}
.conn.live .dot {
  background: #10b981;
  animation: pulse-dot 1.8s infinite;
}
.conn.down {
  background: #fef2f2;
  border-color: #fecaca;
  color: #991b1b;
}
.conn.down .dot {
  background: #ef4444;
}

/* Main Canvas */
main {
  max-width: 1480px;
  width: 100%;
  margin: 0 auto;
  padding: 32px 40px 48px;
  flex: 1;
}

/* ---------------- Common Components ---------------- */
.eyebrow {
  display: block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.8px;
  color: #65816e;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.eyebrow > span {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: #4c8c64;
  border-radius: 50%;
  margin-right: 7px;
}
h1 {
  font-size: 32px;
  line-height: 1.2;
  letter-spacing: -1.2px;
  font-weight: 700;
  margin: 0 0 10px;
}
h2 {
  font-size: 20px;
  line-height: 1.35;
  letter-spacing: -0.5px;
  font-weight: 600;
  margin: 0 0 8px;
}
h3 {
  font-size: 15px;
  font-weight: 600;
  line-height: 1.4;
  margin: 0 0 6px;
}
.muted { color: var(--muted); }
.small { font-size: 12px; }
.mono { font-family: var(--mono); font-size: 12.5px; }

/* Buttons */
.button, .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--border);
  background: white;
  padding: 9px 15px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 13px;
  color: var(--ink);
  transition: all 0.15s;
}
.button:hover, .btn:hover {
  border-color: #a0b8a6;
  background: #f0f4ee;
}
.button.primary, .btn.primary {
  background: var(--green);
  border-color: var(--green);
  color: white;
}
.button.primary:hover, .btn.primary:hover {
  background: var(--green-hover);
  border-color: var(--green-hover);
}
.button.danger, .btn.danger {
  background: #fff1ee;
  border-color: #f7cac1;
  color: #b91c1c;
}
.button.danger:hover, .btn.danger:hover {
  background: #fee2e2;
  border-color: #f87171;
}
.button.ghost, .btn.ghost {
  border-color: transparent;
  background: transparent;
  color: var(--muted);
}
.button.ghost:hover, .btn.ghost:hover {
  background: rgba(0, 0, 0, 0.04);
  color: var(--ink);
}
.button.small, .btn.small {
  padding: 6px 11px;
  font-size: 12px;
}

/* Badges and Tags */
.tag, .pill {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
  border: 1px solid var(--border);
  border-radius: 5px;
  padding: 2px 7px;
  background: #f7faf5;
  color: #55675b;
}
.tag.success, .pill.green {
  background: #e8f5e9;
  border-color: #c8e6c9;
  color: #2e7d32;
}
.tag.warn, .pill.orange, .pill.yellow {
  background: #fff8e1;
  border-color: #ffe082;
  color: #b78103;
}
.tag.error, .pill.red {
  background: #ffebee;
  border-color: #ffcdd2;
  color: #c62828;
}
.tag.blue, .pill.blue {
  background: #e8f0fe;
  border-color: #c2d7fa;
  color: #1a73e8;
}
.tag.ai, .pill.ai {
  background: #f3e8ff;
  border-color: #e9d5ff;
  color: #7e22ce;
}
.tag.draft, .pill.draft {
  background: #fffbeb;
  border-color: #fde68a;
  color: #92400e;
  font-weight: 700;
}
.tag.gray, .pill.gray {
  background: #f3f4f6;
  border-color: #e5e7eb;
  color: #4b5563;
}
.flash {
  animation: flash-anim 0.8s ease-out;
}
@keyframes flash-anim {
  0% { background: #fef08a; transform: scale(1.05); }
  100% { background: inherit; transform: scale(1); }
}

/* HTTP Method Badges */
.method {
  font: 11px var(--mono);
  font-weight: 700;
  border-radius: 4px;
  padding: 3px 6px;
  display: inline-block;
  text-align: center;
  min-width: 46px;
}
.method.get { background: #e5f1e5; color: #2e6933; }
.method.post { background: #e6edf8; color: #2c5991; }
.method.put, .method.patch { background: #fef3c7; color: #92400e; }
.method.delete { background: #fee2e2; color: #991b1b; }
.method.head, .method.options { background: #f3f4f6; color: #4b5563; }

/* Cards & Panels */
.card, .panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  box-shadow: var(--shadow);
  position: relative;
  min-width: 0;
}
.card-header, .panel-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.card-header h2, .panel-heading h2 {
  font-size: 16px;
  margin: 0;
  letter-spacing: -0.3px;
  color: var(--ink);
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: 20px;
}
.grid.two { grid-template-columns: 1fr 1fr; }
.grid.three { grid-template-columns: 1.8fr 1fr; }
.grid.kpis {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.kpi {
  padding: 18px 20px;
}
.kpi .label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--muted);
  margin-bottom: 6px;
}
.kpi .value {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--ink);
  line-height: 1.15;
}
.kpi .sub {
  font-size: 11.5px;
  color: var(--muted);
  margin-top: 6px;
}

/* Toolbars & Filters */
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.toolbar .spacer {
  margin-left: auto;
}
.filter-group {
  display: flex;
  gap: 4px;
  background: white;
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 3px;
}
.filter {
  border: 0;
  background: none;
  padding: 6px 12px;
  color: var(--muted);
  border-radius: 5px;
  font-size: 12px;
  font-weight: 600;
  transition: all 0.15s;
}
.filter.active {
  background: #e3eddf;
  color: #235f4a;
}
.search-box {
  display: flex;
  gap: 8px;
  align-items: center;
  background: white;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0 12px;
  min-width: 240px;
}
.search-box input {
  border: 0;
  padding: 8px 0;
  width: 100%;
  background: none;
  font-size: 13px;
}
.search-box input:focus { outline: none; }

/* Tables */
.table-wrap {
  width: 100%;
  overflow-x: auto;
}
table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  text-align: left;
}
th {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  background: #fbfdfa;
}
td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--border-light);
  color: var(--ink);
  vertical-align: middle;
}
tbody tr {
  transition: background 0.1s;
}
tbody tr:hover {
  background: #f6faf4;
}
tbody tr.new-row {
  animation: highlight-row 2s ease-out;
}
@keyframes highlight-row {
  0% { background: #eaf6ea; }
  100% { background: transparent; }
}
td.actions {
  text-align: right;
  white-space: nowrap;
}
td.actions .btn {
  margin-left: 6px;
}
.empty {
  text-align: center;
  padding: 42px 20px !important;
  color: var(--muted);
  font-size: 13px;
}

/* Charts */
.chart {
  width: 100%;
  height: 200px;
  display: block;
}
.legend {
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
  display: inline-flex;
  gap: 12px;
  margin-left: 14px;
}
.legend span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}
.legend i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
}

/* Bar charts */
.bar-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  margin-bottom: 9px;
}
.bar-row .name {
  width: 130px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-weight: 500;
}
.bar-row .bar {
  flex: 1;
  height: 8px;
  background: #eef3eb;
  border-radius: 4px;
  overflow: hidden;
}
.bar-row .bar span {
  display: block;
  height: 100%;
  background: var(--green);
  border-radius: 4px;
}
.bar-row .num {
  width: 50px;
  text-align: right;
  font-family: var(--mono);
  color: var(--muted);
  font-size: 11px;
}

/* Forms & Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(18, 38, 35, 0.45);
  backdrop-filter: blur(4px);
  z-index: 50;
  display: grid;
  place-items: center;
  padding: 20px;
  overflow-y: auto;
}
.modal {
  background: white;
  border: 1px solid var(--border);
  border-radius: 12px;
  width: 100%;
  max-width: 620px;
  box-shadow: 0 20px 45px rgba(18, 38, 35, 0.15);
  display: flex;
  flex-direction: column;
  max-height: 90vh;
  overflow: hidden;
  animation: modal-in 0.15s ease-out;
}
.modal.large {
  max-width: 880px;
}
@keyframes modal-in {
  from { opacity: 0; transform: scale(0.97); }
  to { opacity: 1; transform: scale(1); }
}
.modal header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.modal header h2 {
  margin: 0;
  font-size: 18px;
}
.modal .body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}
.modal footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  background: #fbfdfa;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.field {
  margin-bottom: 16px;
}
.field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--ink);
}
.field input, .field select, .field textarea {
  width: 100%;
  border: 1px solid #d4ded3;
  border-radius: 6px;
  background: #fbfcf9;
  padding: 9px 12px;
  color: var(--ink);
  font-size: 13px;
  transition: border-color 0.15s;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--green);
  outline: 3px solid #b7dfc9;
}
.field textarea {
  font-family: var(--mono);
  font-size: 12px;
}
.field .help {
  font-size: 11px;
  color: var(--muted);
  margin-top: 5px;
  line-height: 1.5;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.field.check {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
}
.field.check input {
  width: 16px;
  height: 16px;
  accent-color: var(--green);
  margin: 0;
}
.field.check label {
  margin: 0;
  font-weight: 500;
  cursor: pointer;
}
.form-error {
  padding: 12px 14px;
  border: 1px solid #fecaca;
  background: #fef2f2;
  color: #991b1b;
  border-radius: 6px;
  font-size: 12.5px;
  margin-bottom: 16px;
}

/* Callouts & Notices */
.callout {
  padding: 14px 16px;
  border-radius: 8px;
  background: #edf5ea;
  border: 1px solid #cce2c6;
  font-size: 12.5px;
  color: #27522d;
  margin-bottom: 16px;
  line-height: 1.55;
}
.callout.warning {
  background: #fffbeb;
  border-color: #fde68a;
  color: #92400e;
}
.callout.danger {
  background: #fef2f2;
  border-color: #fecaca;
  color: #991b1b;
}

/* Secret Box */
.secret-box {
  background: #142c2c;
  color: #c7f27a;
  font-family: var(--mono);
  padding: 14px 16px;
  border-radius: 8px;
  font-size: 13px;
  word-break: break-all;
  user-select: all;
  margin: 14px 0;
}

/* Toasts */
#toasts {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 60;
  display: grid;
  gap: 8px;
  pointer-events: none;
}
.toast {
  background: var(--rail);
  color: white;
  padding: 11px 20px;
  border-radius: 8px;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
  font-size: 12.5px;
  pointer-events: auto;
  animation: toast-in 0.2s ease-out;
  display: flex;
  align-items: center;
  gap: 10px;
}
.toast.success { border-left: 4px solid var(--lime); }
.toast.error { border-left: 4px solid #ef4444; }
@keyframes toast-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Change Impact Preview Visualizer */
.impact-summary {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin: 16px 0 20px;
}
.impact-box {
  border: 1px solid var(--border);
  background: #fcfdfa;
  border-radius: 8px;
  padding: 14px;
  text-align: center;
}
.impact-box .num {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin: 4px 0;
}
.impact-box .lbl {
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  font-weight: 600;
}

/* Decision Explorer Trail */
.decision-trail {
  border: 1px solid var(--border);
  background: #fbfdfa;
  border-radius: 8px;
  padding: 16px;
  margin: 16px 0;
}
.decision-step {
  display: flex;
  align-items: start;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-light);
}
.decision-step:last-child { border-bottom: 0; }
.step-icon {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}
.step-icon.ok { background: #e8f5e9; color: #2e7d32; }
.step-icon.warn { background: #fff8e1; color: #b78103; }
.step-icon.fail { background: #fee2e2; color: #991b1b; }

/* Responsive adjustments */
@media (max-width: 980px) {
  .rail { position: relative; width: 100%; height: auto; }
  .workspace { margin-left: 0; }
  .topbar { padding: 0 20px; }
  main { padding: 24px 20px; }
  .grid.two, .grid.three { grid-template-columns: 1fr; }
  .rail-card, .rail-footer { display: none; }
}