:root {
  --ink: #1b1f24;
  --muted: #657080;
  --line: #d8dee8;
  --line-strong: #b9c3d1;
  --surface: #ffffff;
  --soft: #f5f7fb;
  --soft-blue: #eef5ff;
  --blue: #2f6fed;
  --blue-dark: #1d4fb8;
  --green: #188756;
  --yellow: #ffe8a3;
  --orange: #b45b16;
  --red: #b42318;
  --red-soft: #fff0ed;
  --shadow: 0 18px 55px rgba(20, 30, 48, 0.12);
  --radius: 8px;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: #edf2f7;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  min-height: 60px;
  display: grid;
  grid-template-columns: minmax(210px, 260px) minmax(280px, 1fr) auto;
  gap: 16px;
  align-items: center;
  padding: 10px 18px;
  background: #20262c;
  color: #f8fafc;
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand,
.address-bar,
.shell-actions,
.identity-card,
.status-row,
.route-top,
.tool-title,
.preview-header,
.button-pair,
.file-toolbar,
.detail-actions {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
}

.brand-mark,
.wp-badge {
  width: 34px;
  height: 34px;
  border: 2px solid currentColor;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-weight: 800;
  flex: 0 0 auto;
}

.brand span:not(.brand-mark) {
  display: block;
  color: #a9b4c2;
  font-size: 12px;
  margin-top: 1px;
}

.address-bar {
  gap: 8px;
  min-width: 0;
}

.path-field {
  flex: 1;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px;
  align-items: center;
  padding: 5px 10px;
  border-radius: 7px;
  background: #3a424d;
  color: #cdd6e1;
  min-width: 0;
}

.path-field input {
  width: 100%;
  border: 0;
  color: #fff;
  background: transparent;
  outline: none;
  min-width: 0;
}

.path-field span {
  font-size: 12px;
  color: #9ca8b7;
}

.shell-actions {
  gap: 8px;
  justify-content: flex-end;
}

.workspace {
  flex: 1;
  display: grid;
  grid-template-columns: 296px minmax(0, 1fr) 320px;
  gap: 16px;
  padding: 16px;
  min-height: 0;
}

.lesson-rail,
.work-panel,
.preview-column {
  min-width: 0;
}

.lesson-rail {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.identity-card,
.progress-card,
.warning-note,
.work-panel,
.preview-column,
.route-card,
.form-card,
.status-card,
.saved-row,
.tool-card,
.transfer-card,
.blueprint-detail,
.quick-panel,
.wide-preview {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.identity-card {
  gap: 12px;
  padding: 14px;
  box-shadow: var(--shadow);
}

.wp-badge {
  color: #111;
  background: #fefefe;
}

.wp-badge.small {
  width: 28px;
  height: 28px;
  font-size: 13px;
}

.eyebrow {
  margin: 0 0 4px;
  color: var(--blue-dark);
  font-size: 12px;
  font-weight: 760;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 4px;
  font-size: 20px;
  line-height: 1.2;
}

h2 {
  margin-bottom: 8px;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.1;
}

h3 {
  margin-bottom: 8px;
  font-size: 18px;
}

p {
  color: var(--muted);
  line-height: 1.45;
}

.identity-card p:last-child,
.warning-note p,
.route-card p,
.status-card p,
.tool-card p,
.transfer-card p,
.quick-panel p {
  margin-bottom: 0;
}

.progress-card,
.warning-note {
  padding: 14px;
}

.progress-meta,
.status-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 13px;
}

.progress-track {
  height: 9px;
  overflow: hidden;
  margin-top: 10px;
  border-radius: 999px;
  background: #dfe5ef;
}

.progress-track.large {
  height: 12px;
}

.progress-track span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--blue), #65a30d);
}

.step-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.step {
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 10px;
  align-items: center;
  width: 100%;
  padding: 12px;
  text-align: left;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
}

.step:hover,
.step.active {
  border-color: var(--blue);
  background: var(--soft-blue);
}

.step-number {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #dfe8ff;
  color: var(--blue-dark);
  font-weight: 800;
}

.step small {
  display: block;
  margin-top: 2px;
  color: var(--muted);
  line-height: 1.25;
}

.warning-note {
  border-left: 4px solid var(--orange);
}

.work-panel {
  min-height: 760px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.panel {
  display: none;
  padding: 24px;
}

.panel.active {
  display: block;
}

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

.panel-heading > div:first-child {
  max-width: 760px;
}

.sequence {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
  max-width: 360px;
}

.sequence span,
.state-pill,
.saved-chip,
.tag-row span,
.mini-settings span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 9px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.sequence span {
  color: #445164;
  background: #edf1f7;
}

.sequence .done,
.state-pill.saved,
.saved-chip {
  color: #075938;
  background: #dff8ec;
}

.state-pill.unsaved {
  color: #6f4500;
  background: var(--yellow);
}

.route-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.route-card {
  min-height: 255px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.route-card.selected {
  border-color: var(--blue);
  background: #f7fbff;
}

.route-card.danger {
  border-color: #efb8ae;
}

.route-top {
  justify-content: space-between;
  gap: 10px;
}

.route-top span,
.tool-title span,
.catalog-count,
.constraint {
  color: var(--muted);
  font-size: 13px;
}

label {
  display: grid;
  gap: 6px;
  color: #384252;
  font-size: 13px;
  font-weight: 700;
}

input,
select {
  min-height: 38px;
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  padding: 8px 10px;
  color: var(--ink);
  background: #fff;
}

.mini-settings,
.tag-row,
.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.mini-settings span,
.tag-row span {
  color: #445164;
  background: #e8eef7;
}

.drop-zone {
  display: grid;
  place-items: center;
  min-height: 72px;
  padding: 12px;
  border: 1px dashed var(--line-strong);
  border-radius: 7px;
  color: var(--muted);
  background: #fbfcff;
  text-align: center;
}

.drop-zone.compact {
  min-height: 48px;
}

.flow-strip,
.reset-warning,
.result-line,
.detail-note {
  margin-top: 16px;
  padding: 14px;
  border-radius: var(--radius);
  background: #f1f5fb;
  border: 1px solid var(--line);
}

.flow-strip {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.flow-strip p {
  margin-bottom: 0;
}

.primary,
.secondary,
.ghost,
.danger-button,
.icon-button {
  min-height: 38px;
  border-radius: 6px;
  border: 1px solid transparent;
  padding: 8px 12px;
  font-weight: 760;
}

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

.primary:hover {
  background: var(--blue-dark);
}

.secondary {
  color: var(--blue-dark);
  border-color: #9cc0ff;
  background: #fff;
}

.ghost {
  color: inherit;
  border-color: var(--line);
  background: #fff;
}

.topbar .ghost,
.topbar .secondary,
.icon-button {
  color: #fff;
  border-color: #596473;
  background: #303842;
}

.topbar .secondary {
  color: #101720;
  border-color: #ffd761;
  background: #ffd761;
}

.danger-button {
  color: #fff;
  background: var(--red);
}

.wide {
  width: 100%;
}

.save-layout,
.library-layout,
.gallery-layout {
  display: grid;
  grid-template-columns: minmax(260px, 0.85fr) minmax(300px, 1fr);
  gap: 14px;
}

.form-card,
.status-card,
.transfer-card {
  padding: 16px;
}

.form-card {
  display: grid;
  gap: 14px;
  align-content: start;
}

.destination-grid {
  display: grid;
  gap: 10px;
}

.destination {
  display: grid;
  gap: 4px;
  padding: 14px;
  text-align: left;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

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

.destination.selected {
  border-color: var(--blue);
  background: var(--soft-blue);
}

.status-stack {
  display: grid;
  gap: 12px;
}

.status-card.success {
  border-color: #8bd3ad;
}

.saved-list,
.action-board {
  display: grid;
  gap: 10px;
  align-content: start;
}

.saved-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 14px;
}

.saved-row p {
  margin: 3px 0 0;
}

.saved-row.selected {
  border-color: var(--blue);
  background: var(--soft-blue);
}

.saved-row.muted {
  background: #fafafa;
}

.danger-soft {
  background: var(--red-soft);
  border-color: #efb8ae;
}

.manager-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.25fr;
  gap: 12px;
}

.tool-card {
  padding: 16px;
  min-width: 0;
}

.settings-card {
  display: grid;
  gap: 12px;
}

.file-card,
.blueprint-card {
  display: grid;
  gap: 12px;
}

.tool-title {
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
}

.check {
  display: flex;
  align-items: center;
  gap: 8px;
}

.check input {
  min-height: auto;
  width: auto;
}

.file-toolbar,
.button-pair,
.detail-actions {
  gap: 8px;
  flex-wrap: wrap;
}

.file-browser {
  min-height: 255px;
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.file-tree {
  list-style: none;
  margin: 0;
  padding: 8px;
  background: #f8fafc;
  border-right: 1px solid var(--line);
}

.file-tree li {
  padding: 7px 8px;
  border-radius: 5px;
  font-size: 13px;
}

.selected-file {
  background: #e2edff;
  color: var(--blue-dark);
  font-weight: 800;
}

.code-view {
  margin: 0;
  overflow: auto;
  padding: 12px;
  color: #8a3300;
  background: #fff;
  font: 12px/1.6 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre;
}

.code-view.json {
  max-height: 190px;
  color: #8d1736;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.data-list {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 12px;
  margin: 12px 0;
}

.data-list dt {
  font-weight: 800;
}

.data-list dd {
  margin: 0;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.log-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.log-grid div {
  padding: 12px;
  border-radius: var(--radius);
  background: #f5f7fb;
}

.catalog-panel {
  min-width: 0;
}

.filter-row {
  margin-bottom: 12px;
}

.filter-button {
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  color: #415064;
  background: #fff;
  font-weight: 750;
}

.filter-button.active {
  color: #fff;
  border-color: var(--blue);
  background: var(--blue);
}

.search-field {
  margin-bottom: 10px;
}

.catalog-count {
  margin-bottom: 10px;
}

.blueprint-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  max-height: 620px;
  overflow: auto;
  padding-right: 4px;
}

.blueprint-item {
  min-height: 116px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  text-align: left;
}

.blueprint-item:hover,
.blueprint-item.selected {
  border-color: var(--blue);
  background: var(--soft-blue);
}

.blueprint-item strong {
  display: block;
  margin-bottom: 6px;
}

.blueprint-item p {
  margin-bottom: 8px;
  font-size: 13px;
}

.blueprint-detail {
  align-self: start;
  padding: 16px;
  position: sticky;
  top: 76px;
}

.preview-art {
  height: 148px;
  display: grid;
  grid-template-columns: 1.1fr 0.8fr 0.6fr;
  gap: 8px;
  margin-bottom: 16px;
  padding: 10px;
  border-radius: var(--radius);
  background: #28313b;
}

.preview-art span {
  border-radius: 6px;
  background: linear-gradient(145deg, #ffe08a, #6bd2a1);
}

.preview-art span:nth-child(2) {
  background: linear-gradient(145deg, #c9dbff, #315fd6);
}

.preview-art span:nth-child(3) {
  background: linear-gradient(145deg, #f9b6b1, #843d81);
}

.transfer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.preview-column {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.preview-header,
.quick-panel {
  padding: 14px;
}

.preview-header {
  justify-content: space-between;
}

.mini-browser,
.wide-preview {
  overflow: hidden;
}

.mini-browser {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  min-height: 430px;
}

.wp-admin-bar {
  min-height: 34px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  color: #fff;
  background: #23282d;
  font-size: 13px;
}

.wp-admin-bar.compact {
  font-size: 12px;
}

.mini-page,
.wp-page {
  position: relative;
  padding: 20px;
  min-height: 390px;
  background: #fff;
}

.mini-page nav,
.wp-page nav {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 48px;
  color: #222;
}

.mini-page nav span,
.wp-page nav span {
  color: #4b5563;
}

.hero-shape {
  position: absolute;
  right: -42px;
  top: 118px;
  width: 210px;
  height: 210px;
  display: grid;
  place-items: center;
  border: 18px solid #2fe675;
  border-radius: 50%;
  color: #202020;
  font-family: Georgia, serif;
  font-size: 94px;
  font-weight: 900;
  opacity: 0.24;
  z-index: 0;
  pointer-events: none;
}

.mini-page h3,
.wp-page h3 {
  max-width: 260px;
  color: #315bea;
  font-family: Georgia, serif;
  font-size: 34px;
  line-height: 1.15;
}

.mini-page p,
.wp-page p {
  max-width: 275px;
  color: #111;
}

.mini-page nav,
.mini-page h3,
.mini-page p,
.mini-page mark {
  position: relative;
  z-index: 1;
}

mark {
  display: inline;
  padding: 0 3px;
  background: #fff09b;
}

.quick-panel ol {
  margin: 10px 0 0;
  padding-left: 20px;
  color: var(--muted);
}

.quick-panel li + li {
  margin-top: 6px;
}

.wide-preview {
  background: #fff;
}

.wide-preview .wp-page {
  min-height: 520px;
}

.wide-preview .wp-page section {
  margin: 90px 0 0 44px;
}

@media (max-width: 1220px) {
  .workspace {
    grid-template-columns: 270px minmax(0, 1fr);
  }

  .preview-column {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1.4fr 1fr;
    align-items: start;
  }

  .mini-browser {
    min-height: 310px;
  }

  .mini-page {
    min-height: 270px;
  }
}

@media (max-width: 980px) {
  .topbar {
    grid-template-columns: 1fr;
  }

  .shell-actions {
    justify-content: flex-start;
    flex-wrap: wrap;
  }

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

  .work-panel {
    order: 1;
  }

  .lesson-rail {
    position: static;
    order: 2;
  }

  .preview-column {
    order: 3;
  }

  .step-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .route-grid,
  .manager-grid,
  .transfer-grid,
  .preview-column,
  .save-layout,
  .library-layout,
  .gallery-layout {
    grid-template-columns: 1fr;
  }

  .blueprint-detail {
    position: static;
  }
}

@media (max-width: 640px) {
  .topbar,
  .workspace {
    padding: 10px;
  }

  .brand {
    align-items: flex-start;
  }

  .address-bar {
    align-items: stretch;
  }

  .path-field {
    grid-template-columns: 1fr;
  }

  .panel {
    padding: 16px;
  }

  .panel-heading,
  .flow-strip {
    display: grid;
  }

  h2 {
    font-size: 24px;
  }

  .step-list,
  .blueprint-list,
  .file-browser,
  .log-grid {
    grid-template-columns: 1fr;
  }

  .saved-row {
    grid-template-columns: auto 1fr;
  }

  .saved-row button {
    grid-column: 1 / -1;
  }

  .file-tree {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .sequence {
    justify-content: flex-start;
  }

  .mini-page nav,
  .wp-page nav,
  .wp-admin-bar {
    display: grid;
  }

  .hero-shape {
    right: -80px;
    width: 180px;
    height: 180px;
    font-size: 72px;
  }

  .wide-preview .wp-page section {
    margin: 40px 0 0;
  }
}