:root {
  --surface: #f6f7f9;
  --panel: #ffffff;
  --ink: #1d1f24;
  --muted: #667085;
  --border: #d9dee7;
  --accent: #0f766e;
  --accent-strong: #0b5f59;
  --danger: #b42318;
  --warning: #92400e;
  --focus: #2563eb;
  --shadow: 0 10px 30px rgba(29, 31, 36, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--surface);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 15px;
  line-height: 1.45;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

[hidden] {
  display: none !important;
}

.login-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-panel {
  width: min(420px, 100%);
  display: grid;
  gap: 18px;
  padding: 28px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.app-shell {
  min-height: 100vh;
}

.topbar {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 16px 24px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.topbar h1,
.login-panel h1,
.panel h2,
.panel h3 {
  margin: 0;
  letter-spacing: 0;
}

.topbar h1 {
  font-size: 22px;
}

.login-panel h1 {
  font-size: 24px;
}

.panel h2 {
  font-size: 22px;
}

.panel h3 {
  margin-top: 24px;
  margin-bottom: 10px;
  font-size: 15px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-picker {
  min-width: 220px;
  display: grid;
  gap: 4px;
  font-size: 12px;
  color: var(--muted);
}

.site-picker select {
  min-height: 38px;
}

.save-state {
  color: var(--muted);
  font-size: 13px;
  min-width: 56px;
  text-align: right;
}

.workspace {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  min-height: calc(100vh - 76px);
}

.sidebar {
  padding: 16px;
  background: #eceff3;
  border-right: 1px solid var(--border);
}

.nav-item {
  width: 100%;
  height: 40px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  margin-bottom: 6px;
  color: var(--ink);
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  text-align: left;
}

.nav-item:hover,
.nav-item.active {
  background: var(--panel);
  border-color: var(--border);
}

.content {
  padding: 24px;
  min-width: 0;
}

.panel {
  display: none;
  max-width: 1180px;
}

.panel.active {
  display: block;
}

.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}

.section-head p {
  margin: 4px 0 0;
  color: var(--muted);
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.metric {
  min-height: 86px;
  display: grid;
  align-content: center;
  gap: 6px;
  padding: 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.metric span {
  color: var(--muted);
  font-size: 13px;
}

.metric strong {
  font-size: 18px;
  overflow-wrap: anywhere;
}

.runtime-contract,
.table-wrap,
.form-grid,
.settings-row,
pre {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.runtime-contract {
  padding: 18px;
  margin-top: 16px;
}

pre {
  max-width: 100%;
  margin: 0;
  padding: 16px;
  overflow: auto;
  color: #111827;
  background: #fbfcfd;
  font-size: 13px;
}

.compact-pre {
  margin-top: 12px;
  white-space: pre-wrap;
}

.technical-details {
  margin-top: 12px;
}

.technical-details summary {
  cursor: pointer;
  color: var(--muted);
  font-weight: 700;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 18px;
}

.span-2 {
  grid-column: span 2;
}

label {
  display: grid;
  gap: 7px;
  color: var(--ink);
  font-weight: 700;
}

input,
textarea,
select {
  width: 100%;
  min-height: 40px;
  padding: 9px 11px;
  color: var(--ink);
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: 6px;
}

textarea {
  resize: vertical;
}

input[type="color"] {
  padding: 4px;
}

input:focus,
textarea:focus,
select:focus,
button:focus {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}

.button {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0 14px;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  text-decoration: none;
  font-weight: 700;
}

.button:hover {
  border-color: #b9c2d0;
}

.button.primary {
  color: #ffffff;
  background: var(--accent);
  border-color: var(--accent);
}

.button.primary:hover {
  background: var(--accent-strong);
}

.button.subtle {
  color: var(--muted);
}

.notice {
  margin: 0;
  padding: 10px 12px;
  border-radius: 6px;
  font-weight: 700;
}

.notice.warning {
  color: var(--warning);
  background: #fff7ed;
  border: 1px solid #fed7aa;
}

.notice.danger {
  color: var(--danger);
  background: #fef3f2;
  border: 1px solid #fecdca;
}

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

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

th,
td {
  padding: 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0;
}

td input,
td select {
  min-width: 150px;
}

td .compact {
  min-width: 90px;
}

.settings-row {
  display: grid;
  grid-template-columns: 180px 180px minmax(220px, 1fr);
  gap: 16px;
  margin-top: 16px;
  padding: 18px;
  align-items: end;
}

.period-picker {
  min-width: 160px;
  display: grid;
  gap: 4px;
  color: var(--muted);
  font-size: 12px;
}

.report-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}

.report-metric small {
  color: var(--muted);
  font-size: 13px;
}

.report-bars {
  display: grid;
  gap: 10px;
}

.report-bar {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr) 70px;
  gap: 12px;
  align-items: center;
}

.report-bar-track {
  height: 12px;
  overflow: hidden;
  background: #eef2f6;
  border-radius: 999px;
}

.report-bar-fill {
  min-width: 2px;
  height: 100%;
  background: var(--accent);
}

.report-bar.reject .report-bar-fill {
  background: var(--danger);
}

.report-bar.partial .report-bar-fill {
  background: var(--focus);
}

.report-bar.ignore .report-bar-fill {
  background: var(--warning);
}

.switch-row {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 40px;
}

.switch-row input {
  width: 18px;
  min-height: 18px;
}

.logo-preview {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 52px;
  padding: 10px 12px;
  color: var(--muted);
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.logo-preview img {
  max-width: 180px;
  max-height: 48px;
  object-fit: contain;
}

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

.diff-list {
  display: grid;
  gap: 8px;
}

.diff-row {
  display: grid;
  grid-template-columns: 200px 1fr 1fr;
  gap: 12px;
  padding: 10px 14px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
}

.diff-path {
  font-weight: 700;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.diff-val {
  padding: 4px 8px;
  border-radius: 4px;
  overflow-wrap: anywhere;
  font-family: Consolas, "Courier New", monospace;
}

.diff-before {
  background: #fff1f0;
  color: #b42318;
  text-decoration: line-through;
}

.diff-after {
  background: #f6ffed;
  color: #389e0d;
}

.diff-header {
  display: grid;
  grid-template-columns: 200px 1fr 1fr;
  gap: 12px;
  padding: 0 14px 8px;
  font-size: 11px;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
}

.empty-state {
  margin: 0;
  color: var(--muted);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  margin-left: 8px;
  padding: 0 8px;
  color: var(--accent-strong);
  background: #e7f6f3;
  border: 1px solid #b7e2dc;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
}

.row-actions {
  white-space: nowrap;
}

.button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

@media (max-width: 860px) {
  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .topbar-actions {
    justify-content: flex-start;
  }

  .workspace {
    grid-template-columns: 1fr;
  }

  .sidebar {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    border-right: 0;
    border-bottom: 1px solid var(--border);
  }

  .nav-item {
    flex: 0 0 auto;
    width: auto;
    margin-bottom: 0;
  }

  .metric-grid,
  .report-grid,
  .form-grid,
  .settings-row,
  .diff-row {
    grid-template-columns: 1fr;
  }

  .report-bar {
    grid-template-columns: 1fr;
    gap: 6px;
  }

  .span-2 {
    grid-column: span 1;
  }
}