:root {
  color-scheme: light;
  --bg: #f3f6f8;
  --panel: #ffffff;
  --panel-soft: #f7fafb;
  --text: #1b2733;
  --muted: #697888;
  --line: #dce5ea;
  --cisco: #0f7c90;
  --blue: #3f6796;
  --green: #2f9e6d;
  --yellow: #d89b24;
  --red: #d34242;
  --mint: var(--green);
  --amber: var(--yellow);
  --danger: var(--red);
  --focus: rgba(15, 124, 144, 0.2);
  --shadow: 0 18px 44px rgba(35, 52, 65, 0.08);
  font-family: Inter, ui-sans-serif, system-ui, sans-serif;
}

.dark {
  color-scheme: dark;
  --bg: #111821;
  --panel: #18232d;
  --panel-soft: #141d26;
  --text: #ecf3f5;
  --muted: #a5b1bd;
  --line: #2d3d49;
  --cisco: #5ab6c6;
  --blue: #91afe1;
  --green: #67d39d;
  --yellow: #e8bd5a;
  --red: #ff7373;
  --mint: var(--green);
  --amber: var(--yellow);
  --danger: var(--red);
  --focus: rgba(90, 182, 198, 0.24);
  --shadow: 0 18px 48px rgba(0, 0, 0, 0.24);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  background-image:
    linear-gradient(180deg, color-mix(in srgb, var(--cisco) 5%, transparent), transparent 280px),
    radial-gradient(circle at top right, color-mix(in srgb, var(--blue) 9%, transparent), transparent 360px);
  color: var(--text);
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 22px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 88%, transparent);
  backdrop-filter: blur(16px);
}

.brand,
.actions,
.preview-actions,
.tabs,
.page-nav,
.page-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.page-nav {
  justify-content: center;
  flex: 1;
}

.page-actions {
  margin-top: 24px;
  gap: 12px;
}

.page-nav button,
.primary {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  padding: 0 14px;
  font-weight: 900;
  transition: 150ms ease;
}

.page-nav button.active,
.page-nav button:hover,
.primary {
  border-color: var(--green);
  background: color-mix(in srgb, var(--green) 12%, var(--panel));
  color: var(--text);
}

.primary {
  background: linear-gradient(135deg, var(--green), var(--cisco));
  color: white;
  border-color: transparent;
  padding-inline: 22px;
}

.logo {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 8px;
  background:
    radial-gradient(circle at 27% 30%, var(--green) 0 10%, transparent 11%),
    radial-gradient(circle at 51% 30%, var(--yellow) 0 10%, transparent 11%),
    radial-gradient(circle at 75% 30%, var(--red) 0 10%, transparent 11%),
    linear-gradient(135deg, #22313d, #101820);
  color: white;
  font-weight: 900;
}

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

h1 {
  font-size: 18px;
}

h2 {
  font-size: clamp(20px, 2vw, 28px);
}

main {
  max-width: 1480px;
  margin: 0 auto;
  padding: 36px 32px 56px;
}

.app-page {
  display: none;
}

.app-page.active {
  display: block;
}

.page-heading {
  max-width: 900px;
  margin: 0 0 22px;
}

.page-heading span {
  color: var(--cisco);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.page-heading h2 {
  margin-top: 4px;
  font-size: clamp(28px, 4vw, 46px);
  line-height: 1.05;
}

.page-heading p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.5;
}

.hero,
.workspace {
  display: grid;
  gap: 18px;
}

.hero {
  grid-template-columns: 1.6fr 0.8fr;
}

.workspace {
  grid-template-columns: 310px minmax(0, 1fr) minmax(430px, 0.95fr);
  align-items: start;
  margin-top: 18px;
}

.builder-workspace {
  grid-template-columns: minmax(260px, 300px) minmax(0, 1fr);
  gap: 26px;
  margin-top: 22px;
}

.panel,
.sidebar,
.preview,
.template {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.panel,
.sidebar {
  padding: 24px;
}

.section-title {
  margin-bottom: 22px;
}

.section-title span {
  color: var(--cisco);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.section-title p {
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.security-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin: 0 0 24px;
}

.signal {
  display: grid;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 18px 20px;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.signal::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 7px;
}

.signal strong {
  font-size: 28px;
  line-height: 1;
}

.signal span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.signal.green::before {
  background: var(--green);
}

.signal.yellow::before {
  background: var(--yellow);
}

.signal.red::before {
  background: var(--red);
}

.signal.green strong {
  color: var(--green);
}

.signal.yellow strong {
  color: var(--yellow);
}

.signal.red strong {
  color: var(--red);
}

.device-grid,
.templates,
.grid {
  display: grid;
  gap: 12px;
}

.device-grid {
  grid-template-columns: repeat(3, 1fr);
}

.templates {
  margin-top: 18px;
  grid-template-columns: repeat(6, 1fr);
}

.page-templates {
  margin-top: 0;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

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

.device-card,
.template,
.module,
.secondary,
.icon,
.tabs button,
.block,
.small,
.helper-strip button {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
  color: var(--text);
  transition: 150ms ease;
}

.device-card {
  min-height: 126px;
  padding: 16px;
  text-align: left;
}

.device-card b {
  display: block;
  font-size: 24px;
  color: var(--cisco);
}

.device-card strong,
.device-card small,
.template strong,
.template span {
  display: block;
}

.device-card small,
.template span,
.brand p,
.preview small,
.module small,
.field span,
.toggle small {
  color: var(--muted);
  font-size: 12px;
}

.device-card.active,
.tabs button.active,
.module.active {
  border-color: var(--green);
  background: color-mix(in srgb, var(--green) 10%, var(--panel));
  box-shadow: 0 0 0 3px var(--focus);
}

.template {
  min-height: 94px;
  padding: 14px;
  text-align: left;
}

.page-templates .template {
  min-height: 150px;
  padding: 18px;
}

.secondary,
.icon,
.tabs button,
.preview-actions button,
.small,
.helper-strip button {
  min-height: 38px;
  padding: 0 12px;
  font-weight: 800;
}

.small {
  min-height: 32px;
  font-size: 12px;
}

.icon {
  width: 40px;
  padding: 0;
}

.field {
  display: grid;
  gap: 6px;
}

.field span {
  font-weight: 900;
  text-transform: uppercase;
}

input,
select,
.search {
  width: 100%;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  padding: 0 10px;
  outline: none;
}

input:focus,
select:focus,
.search:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--focus);
}

.controls {
  margin-top: 14px;
}

.wizard {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 54px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: var(--panel-soft);
}

.wizard + .wizard {
  margin-top: 8px;
}

.wizard b {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border-radius: 8px;
  background: var(--green);
  color: white;
}

.module-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.module {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  padding: 14px;
  text-align: left;
}

.module input {
  width: 16px;
  height: 16px;
  accent-color: var(--green);
}

.helper-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 24px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--green) 9%, var(--panel)), color-mix(in srgb, var(--yellow) 5%, var(--panel-soft)));
}

.helper-strip button:hover,
.template:hover,
.device-card:hover,
.module:hover,
.secondary:hover,
.small:hover {
  border-color: var(--green);
  transform: translateY(-1px);
}

.sidebar h3,
.notes h3 {
  margin: 18px 0 10px;
  color: var(--muted);
  font-size: 12px;
  text-transform: uppercase;
}

.block-library {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.block-library p {
  margin: -2px 0 12px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.mini-drop {
  display: grid;
  min-height: 58px;
  place-items: center;
  margin-bottom: 10px;
  border: 1px dashed color-mix(in srgb, var(--green) 55%, var(--line));
  border-radius: 8px;
  background: color-mix(in srgb, var(--green) 7%, var(--panel));
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: 150ms ease;
}

.mini-drop.drag-over {
  border-style: solid;
  background: color-mix(in srgb, var(--green) 18%, var(--panel));
  color: var(--text);
  box-shadow: 0 0 0 3px var(--focus);
}

.blocks {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.block {
  display: grid;
  gap: 2px;
  padding: 13px 14px;
  text-align: left;
  font-weight: 800;
  cursor: grab;
}

.block small {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
}

.block.dragging {
  opacity: 0.55;
  cursor: grabbing;
}

.accordion {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
}

.accordion + .accordion {
  margin-top: 18px;
}

.accordion summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  cursor: pointer;
  padding: 18px 20px;
  font-weight: 900;
}

.accordion summary small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.accordion > div {
  border-top: 1px solid var(--line);
  padding: 20px;
}

.builder {
  position: relative;
  min-height: 520px;
}

.builder.drag-over {
  outline: 3px solid var(--focus);
  border-color: var(--green);
  background: linear-gradient(135deg, color-mix(in srgb, var(--green) 8%, var(--panel)), var(--panel));
}

.drop-hint {
  position: absolute;
  right: 18px;
  top: 18px;
  z-index: 2;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel) 90%, var(--green));
  color: var(--muted);
  padding: 7px 12px;
  font-size: 12px;
  font-weight: 900;
  opacity: 0;
  transform: translateY(-4px);
  transition: 150ms ease;
  pointer-events: none;
}

.builder.drag-over .drop-hint,
.drop-hint.show {
  opacity: 1;
  transform: translateY(0);
  color: var(--text);
}

.toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 14px;
  text-align: left;
}

.toggle span {
  display: grid;
}

.toggle i {
  position: relative;
  width: 46px;
  min-width: 46px;
  height: 26px;
  border-radius: 999px;
  background: #9aa8b5;
}

.toggle i::after {
  content: "";
  position: absolute;
  top: 4px;
  left: 4px;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: white;
  transition: 150ms ease;
}

.toggle.on i {
  background: var(--green);
}

.toggle.on i::after {
  left: 24px;
}

.rows {
  display: grid;
  gap: 16px;
}

.row-card {
  display: grid;
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 18px;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.04);
}

.row-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
}

.row-title span {
  color: var(--muted);
  font-size: 12px;
}

.row-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(180px, 1fr));
  gap: 16px;
}

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

.add-wide {
  justify-self: start;
}

.export-layout {
  display: grid;
  grid-template-columns: minmax(280px, 0.55fr) minmax(0, 1.45fr);
  gap: 18px;
  align-items: start;
}

.export-summary {
  position: sticky;
  top: 86px;
}

.summary-grid {
  display: grid;
  gap: 10px;
  margin: 16px 0;
}

.summary-grid div {
  display: grid;
  gap: 3px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
  padding: 12px;
}

.summary-grid strong {
  font-size: 22px;
}

.summary-grid span {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

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

.preview {
  overflow: hidden;
  background: #121c25;
  color: #edf5f7;
}

.builder-preview-shell {
  grid-column: 1 / -1;
}

.builder-preview-shell .preview {
  margin-top: 4px;
}

.preview-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.preview-head strong,
.preview-head small {
  display: block;
}

.preview-actions button {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.07);
  color: white;
}

.issues {
  display: grid;
  gap: 8px;
  padding: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
}

.issues div {
  border-radius: 7px;
  padding: 9px;
  font-size: 12px;
  font-weight: 800;
}

.ok {
  background: color-mix(in srgb, var(--green) 18%, transparent);
  color: var(--green);
}

.warning {
  background: color-mix(in srgb, var(--yellow) 18%, transparent);
  color: var(--yellow);
}

.error {
  background: color-mix(in srgb, var(--red) 18%, transparent);
  color: var(--red);
}

.preview-grid {
  display: grid;
  grid-template-columns: 1fr 230px;
  min-height: 580px;
}

pre {
  margin: 0;
  overflow: auto;
  padding: 16px;
  font: 12px/1.6 "SFMono-Regular", Consolas, monospace;
}

.notes {
  overflow: auto;
  padding: 12px;
  background: rgba(255, 255, 255, 0.04);
  border-left: 1px solid rgba(255, 255, 255, 0.12);
}

.notes div {
  margin-bottom: 8px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 7px;
  padding: 8px;
}

.notes code {
  color: #5de0bd;
  font-size: 11px;
}

.notes p {
  margin-top: 4px;
  color: #c8d3dc;
  font-size: 11px;
  line-height: 1.4;
}

@media (max-width: 1180px) {
  .hero,
  .workspace,
  .templates,
  .page-templates,
  .export-layout {
    grid-template-columns: 1fr;
  }

  .export-summary {
    position: static;
  }

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

  .notes {
    border-left: 0;
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }
}

@media (max-width: 760px) {
  main,
  .topbar {
    padding: 12px;
  }

  .device-grid,
  .grid.two,
  .grid.three,
  .row-fields {
    grid-template-columns: 1fr;
  }

  .topbar,
  .preview-head {
    align-items: stretch;
    flex-direction: column;
  }

  .page-nav {
    justify-content: flex-start;
  }

  .page-nav button,
  .primary,
  .secondary {
    flex: 1 1 auto;
  }
}