:root {
  --bg: #edf1e4;
  --bg-strong: #d9e5cd;
  --surface: #fffdf8;
  --surface-alt: #f4f0e6;
  --text: #1f2a24;
  --muted: #5b685f;
  --line: #d7d1c3;
  --accent: #0f6b63;
  --accent-strong: #0c5a53;
  --accent-soft: rgba(15, 107, 99, 0.12);
  --warning: #b86a17;
  --danger: #b42318;
  --success: #1c7c54;
  --shadow: 0 20px 60px rgba(31, 42, 36, 0.08);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(15, 107, 99, 0.18), transparent 26%),
    radial-gradient(circle at bottom right, rgba(184, 106, 23, 0.1), transparent 24%),
    linear-gradient(180deg, #f7f4eb 0%, var(--bg) 100%);
}

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

.app-shell {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr) 390px;
  min-height: 100vh;
  gap: 20px;
  padding: 20px;
}

.left-rail,
.workspace,
.inspector {
  min-width: 0;
}

.left-rail,
.inspector {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.workspace {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.brand-card,
.panel,
.hero {
  background: rgba(255, 253, 248, 0.88);
  border: 1px solid rgba(215, 209, 195, 0.95);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.brand-card,
.panel {
  padding: 18px;
}

.hero {
  padding: 22px 24px;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: end;
}

.eyebrow {
  margin: 0 0 6px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  color: var(--warning);
  font-weight: 700;
}

h1,
h2,
h3,
h4,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 8px;
  font-size: 2rem;
}

h2 {
  margin-bottom: 4px;
  font-size: 1.25rem;
}

h3,
h4 {
  margin-bottom: 8px;
}

code,
pre {
  font-family: "IBM Plex Mono", "SFMono-Regular", monospace;
}

.muted,
.helper-copy,
.helper-inline,
.status-line,
.summary-label,
.stack-item-meta {
  color: var(--muted);
}

.stack-hint {
  display: grid;
  gap: 4px;
  margin-top: 14px;
  padding: 12px;
  border-radius: 14px;
  background: var(--surface-alt);
  border: 1px solid var(--line);
  font-size: 0.9rem;
}

.panel-head,
.subsection-head,
.stack-item-title-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: flex-start;
}

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

.helper-copy {
  margin-bottom: 14px;
  line-height: 1.55;
}

.field {
  display: block;
  margin-bottom: 14px;
}

.field span {
  display: block;
  margin-bottom: 6px;
  font-size: 0.92rem;
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: #fffdf9;
  color: var(--text);
  padding: 11px 13px;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.btn {
  border: none;
  border-radius: 14px;
  padding: 11px 14px;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: white;
}

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

.btn-secondary,
.btn-ghost {
  background: #e8ece4;
  color: var(--text);
}

.btn-ghost {
  background: transparent;
  border: 1px solid var(--line);
}

.button-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.button-row.compact {
  flex-wrap: nowrap;
}

.button-row .btn {
  flex: 1 1 auto;
}

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

.badge,
.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 700;
}

.badge.neutral,
.pill {
  background: #e9ece4;
  color: var(--text);
}

.badge.success,
.pill.success {
  background: rgba(28, 124, 84, 0.14);
  color: var(--success);
}

.badge.danger,
.pill.danger {
  background: rgba(180, 35, 24, 0.12);
  color: var(--danger);
}

.status-line {
  min-height: 1.2rem;
  margin-top: 12px;
  font-size: 0.92rem;
}

.status-line.success {
  color: var(--success);
}

.status-line.error {
  color: var(--danger);
}

.status-banner {
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(255, 253, 248, 0.92);
  box-shadow: var(--shadow);
  font-size: 0.95rem;
  font-weight: 600;
}

.status-banner.neutral {
  color: var(--text);
  background: rgba(244, 240, 230, 0.9);
}

.status-banner.success {
  color: var(--success);
  background: rgba(28, 124, 84, 0.1);
  border-color: rgba(28, 124, 84, 0.24);
}

.status-banner.error {
  color: var(--danger);
  background: rgba(180, 35, 24, 0.08);
  border-color: rgba(180, 35, 24, 0.2);
}

.summary-card,
.inline-doc,
.state-summary {
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--surface-alt);
  padding: 14px;
}

.summary-card.empty,
.state-summary.empty,
.activity-list.empty,
.stack-list.empty {
  display: block;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
}

.summary-grid.compact {
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.summary-section + .summary-section {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.summary-label {
  display: block;
  margin-bottom: 4px;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

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

.panel.wide {
  grid-column: 1 / -1;
}

.form-grid {
  display: grid;
  gap: 12px;
}

.form-grid.two-up {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-grid.three-up {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.two-column {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 16px;
}

.automation-grid {
  align-items: start;
}

.automation-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.automation-actions .btn {
  padding: 8px 10px;
}

.automation-action-list {
  display: grid;
  gap: 10px;
}

.automation-action-row {
  display: grid;
  grid-template-columns: minmax(180px, 1.4fr) repeat(4, minmax(96px, 1fr)) auto;
  gap: 10px;
  align-items: end;
  padding: 12px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--surface-alt);
}

.automation-action-row .field {
  margin-bottom: 0;
}

.subsection + .subsection {
  margin-top: 16px;
}

.code-block,
.inline-json {
  margin: 0;
  white-space: pre-wrap;
  overflow: auto;
  border-radius: 16px;
  border: 1px solid #1d2d2a;
  background: #17211f;
  color: #d7f4ec;
  padding: 14px;
  min-height: 90px;
}

.inline-json {
  margin-top: 10px;
  min-height: 0;
}

.stack-list,
.activity-list {
  display: grid;
  gap: 10px;
}

.audit-list {
  max-height: 420px;
  overflow: auto;
  padding-right: 4px;
}

.stack-item,
.activity-item {
  width: 100%;
  text-align: left;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fffdf9;
  padding: 13px 14px;
}

.stack-item.selectable,
.activity-item {
  cursor: pointer;
}

.stack-item.selectable:hover,
.activity-item:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.stack-item.selectable.selected,
.activity-item.selected {
  border-color: var(--accent);
  background: rgba(15, 107, 99, 0.08);
}

.stack-item-title-row strong {
  font-size: 1rem;
}

.stack-item-meta {
  margin-top: 6px;
  font-size: 0.88rem;
  line-height: 1.45;
}

.empty-state {
  padding: 16px;
  border-radius: 14px;
  background: var(--surface-alt);
  border: 1px dashed var(--line);
  color: var(--muted);
}

.doc-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 10px;
  line-height: 1.5;
}

.inspector-panel {
  position: sticky;
  top: 20px;
  max-height: calc(100vh - 40px);
  overflow: hidden;
}

.inspector-detail,
.inspector-block {
  display: grid;
  gap: 10px;
}

.inspector-layout {
  display: grid;
  gap: 16px;
  grid-template-rows: minmax(0, 1fr) minmax(0, 1fr);
  min-height: 0;
  height: calc(100vh - 220px);
}

.inspector-detail-pane,
.inspector-activity-pane {
  min-height: 0;
  display: grid;
  gap: 12px;
  padding: 14px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: rgba(244, 240, 230, 0.75);
}

.inspector-detail {
  min-height: 0;
  overflow: auto;
  padding-right: 4px;
}

.inspector-activity-pane .activity-list {
  min-height: 0;
  overflow: auto;
  padding-right: 4px;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  min-width: 360px;
}

.metric {
  padding: 12px 14px;
  border-radius: 16px;
  background: var(--surface-alt);
  border: 1px solid var(--line);
}

.metric-label {
  display: block;
  margin-bottom: 6px;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
}

.metric strong {
  font-size: 1.35rem;
}

.hidden {
  display: none;
}

.app-dialog {
  width: min(780px, calc(100vw - 32px));
  border: none;
  padding: 0;
  border-radius: 22px;
  background: transparent;
}

.app-dialog.wide-dialog {
  width: min(1060px, calc(100vw - 32px));
}

.app-dialog::backdrop {
  background: rgba(31, 42, 36, 0.45);
  backdrop-filter: blur(6px);
}

.dialog-card {
  margin: 0;
  padding: 24px;
  border-radius: 22px;
  border: 1px solid rgba(215, 209, 195, 0.95);
  background: rgba(255, 253, 248, 0.98);
  box-shadow: var(--shadow);
}

.dialog-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
}

@media (max-width: 1480px) {
  .app-shell {
    grid-template-columns: 300px minmax(0, 1fr);
  }

  .inspector {
    grid-column: 1 / -1;
  }

  .inspector-panel {
    position: static;
    max-height: none;
    overflow: visible;
  }

  .inspector-layout {
    height: auto;
    grid-template-rows: auto auto;
  }
}

@media (max-width: 1080px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .content-grid,
  .two-column,
  .automation-action-row,
  .form-grid.two-up,
  .form-grid.three-up,
  .hero {
    grid-template-columns: 1fr;
    display: grid;
  }

  .hero-metrics {
    min-width: 0;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}