:root {
  --bg: #ffffff;
  --bg-soft: #f7f7f8;
  --panel: #ffffff;
  --panel-soft: #fafafa;
  --line: #e7e7ea;
  --line-strong: #d5d5db;
  --text: #12131a;
  --muted: #666b76;
  --accent: #0f766e;
  --accent-soft: #e6f6f4;
  --danger: #b42318;
  --danger-soft: #feeceb;
  --shadow: 0 14px 40px rgba(18, 19, 26, 0.06);
  --radius: 20px;
  --radius-sm: 14px;
  --mono: "IBM Plex Mono", "Consolas", monospace;
  --sans: "Segoe UI", "Helvetica Neue", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background: var(--bg);
}

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

.top-shell {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  padding: 18px 28px 14px;
}

.brand-row,
.topbar-actions,
.form-actions,
.login-actions,
.panel-header,
.modal-header,
.toolbar,
.wizard-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.top-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.page-shell {
  padding: 28px;
}

.page-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

h1,
h2,
h3,
h4 {
  margin: 0;
  letter-spacing: -0.03em;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

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

.small {
  font-size: 0.85rem;
}

.nav-link,
.button {
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 10px 16px;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  text-decoration: none;
}

.nav-link:hover,
.nav-link.active {
  background: var(--bg-soft);
  border-color: var(--line);
}

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

.button.secondary {
  background: #fff;
  border-color: var(--line);
}

.button.ghost {
  background: transparent;
  border-color: var(--line);
}

.button.danger {
  background: var(--danger-soft);
  border-color: transparent;
  color: var(--danger);
}

.workspace {
  display: grid;
  gap: 18px;
  margin-bottom: 18px;
}

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

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

.builder-layout {
  grid-template-columns: 360px minmax(0, 1fr);
  align-items: start;
}

.builder-main {
  display: grid;
  gap: 18px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}

.inset-panel {
  padding: 18px;
  box-shadow: none;
  background: var(--panel-soft);
}

.panel-header {
  margin-bottom: 16px;
}

.step-panel {
  background: linear-gradient(180deg, #ffffff 0%, #fcfcfc 100%);
}

.step-title {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 14px;
  margin-bottom: 16px;
  align-items: start;
}

.step-title p {
  margin: 6px 0 0;
  color: var(--muted);
}

.step-number {
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 18px;
}

.stat-card {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 18px;
}

.stat-card strong {
  display: block;
  margin-top: 8px;
  font-size: 2rem;
}

.integration-card-list {
  display: grid;
  gap: 12px;
  margin-bottom: 18px;
}

.integration-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 14px;
  background: #fff;
  cursor: pointer;
}

.integration-card.active {
  border-color: rgba(15, 118, 110, 0.3);
  background: var(--accent-soft);
}

.integration-card p {
  margin: 6px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.compact-form {
  gap: 12px;
}

.form-grid,
.builder-grid,
.helper-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.builder-grid.rules-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.field {
  display: grid;
  gap: 8px;
}

.field.inline {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.field-full {
  grid-column: 1 / -1;
}

.action-field {
  align-self: end;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  background: #fff;
  color: var(--text);
}

textarea {
  resize: vertical;
  font-family: var(--mono);
  font-size: 0.92rem;
}

.guide-box,
.assistant-empty,
.hint-card {
  padding: 16px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--panel-soft);
}

.guide-box p,
.hint-card p {
  margin: 8px 0 0;
  color: var(--muted);
}

.hidden-box {
  display: none;
}

.helper-list,
.field-palette {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.helper-chip,
.field-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 7px 12px;
  font-size: 0.88rem;
}

.field-pill {
  cursor: pointer;
}

.field-pill.active {
  background: var(--accent-soft);
  border-color: rgba(15, 118, 110, 0.3);
}

.field-pill .mini {
  color: var(--muted);
  font-size: 0.8rem;
}

.table-wrap {
  overflow: auto;
}

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

th,
td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

td code {
  font-family: var(--mono);
  background: var(--bg-soft);
  padding: 2px 6px;
  border-radius: 8px;
}

.table-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.link-button {
  border: 0;
  background: transparent;
  color: var(--accent);
  cursor: pointer;
  padding: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 5px 10px;
  border: 1px solid var(--line);
  font-size: 0.8rem;
}

.badge.success {
  background: var(--accent-soft);
}

.badge.error {
  background: var(--danger-soft);
  color: var(--danger);
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.advanced-panel summary {
  cursor: pointer;
  font-weight: 600;
}

.advanced-content {
  margin-top: 16px;
}

.field-help {
  margin: -2px 0 0;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.4;
}

.modal,
.login-overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(18, 19, 26, 0.24);
  backdrop-filter: blur(8px);
  z-index: 20;
}

.modal.hidden,
.login-overlay.hidden {
  display: none;
}

.modal-card,
.login-card {
  width: min(860px, calc(100vw - 32px));
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 24px;
}

.login-card {
  width: min(480px, calc(100vw - 32px));
}

.modal-card {
  max-height: calc(100vh - 32px);
  overflow: auto;
}

.error-text {
  color: var(--danger);
  min-height: 20px;
}

@media (max-width: 1400px) {
  .card-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 1100px) {
  .builder-layout,
  .workspace.two-col,
  .workspace.three-col,
  .builder-grid.rules-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 780px) {
  .page-shell,
  .top-shell {
    padding-left: 16px;
    padding-right: 16px;
  }

  .form-grid,
  .builder-grid,
  .card-grid {
    grid-template-columns: 1fr;
  }

  .brand-row,
  .page-heading {
    align-items: flex-start;
    flex-direction: column;
  }
}