:root {
  color-scheme: dark;
  --page: #101311;
  --panel: #171b18;
  --panel-strong: #202520;
  --panel-hover: #292f2a;
  --border: #343b35;
  --border-strong: #4b554d;
  --text: #f3f5f3;
  --muted: #aab3ac;
  --subtle: #7f8a82;
  --action: #d8f0e2;
  --action-hover: #c4e4d2;
  --action-ink: #123c2c;
  --accent: #69a7df;
  --success: #55c58a;
  --warning: #f3b85b;
  --danger: #ff817a;
  --focus: #8fc8ff;
  --preview: #0c0f0d;
  --white: #ffffff;
  --shadow: 0 18px 48px rgb(0 0 0 / 35%);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

html {
  background: var(--page);
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100dvh;
  overflow: hidden;
  background: var(--page);
  color: var(--text);
  font-family: "IBM Plex Sans", Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.5;
}

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

button,
a,
label[for] {
  -webkit-tap-highlight-color: transparent;
}

button,
a,
select,
input[type="color"],
input[type="range"],
.file-trigger {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
}

[hidden] {
  display: none !important;
}

.icon-sprite {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

.icon {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 8px;
  left: 8px;
  transform: translateY(-160%);
  padding: 10px 14px;
  border-radius: 6px;
  background: var(--white);
  color: #111411;
  font-weight: 700;
  text-decoration: none;
}

.skip-link:focus {
  transform: translateY(0);
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.topbar {
  height: 60px;
  padding: 0 18px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--panel);
}

.brand {
  min-width: 0;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--action);
  background: var(--page);
}

.brand-mark .icon {
  width: 21px;
  height: 21px;
}

.brand-name {
  overflow: hidden;
  font-size: 17px;
  font-weight: 750;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.build-badge,
.mode-summary {
  min-height: 24px;
  padding: 3px 8px;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--muted);
  background: var(--panel-strong);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 11px;
  font-weight: 700;
}

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

.privacy-state {
  height: 36px;
  padding: 0 10px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: var(--success);
  font-size: 13px;
  font-weight: 650;
}

.privacy-state .icon {
  width: 17px;
  height: 17px;
}

.icon-button,
.language-button,
.field-icon-button {
  border: 1px solid var(--border);
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  background: var(--panel-strong);
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease;
}

.icon-button:hover,
.language-button:hover,
.field-icon-button:hover {
  border-color: var(--border-strong);
  color: var(--text);
  background: var(--panel-hover);
}

.icon-button {
  width: 44px;
  height: 44px;
}

.language-button {
  min-width: 70px;
  height: 44px;
  padding: 0 12px;
  gap: 7px;
  font-size: 13px;
  font-weight: 700;
}

.workspace {
  height: calc(100dvh - 60px);
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(340px, 390px) minmax(0, 1fr);
}

.controls {
  min-width: 0;
  min-height: 0;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  background: var(--panel);
}

.panel-header,
.preview-header {
  min-height: 74px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.eyebrow {
  margin: 0 0 2px;
  color: var(--subtle);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0;
  line-height: 1.2;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  font-size: 18px;
  font-weight: 720;
  letter-spacing: 0;
  line-height: 1.25;
}

#generator-form {
  min-height: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.controls-body {
  min-height: 0;
  padding: 18px 20px 22px;
  flex: 1;
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-color: var(--border-strong) transparent;
}

.form-section,
.mode-panel {
  margin: 0;
  padding: 0 0 18px;
  border: 0;
}

.form-section + .mode-panel,
.mode-panel + .form-section,
.form-section + .form-section {
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.mode-section {
  padding-bottom: 16px;
}

legend {
  width: 100%;
  margin: 0 0 10px;
  padding: 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0;
  text-transform: uppercase;
}

.mode-tabs {
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: 6px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 3px;
  background: var(--page);
}

.mode-tab {
  min-width: 0;
  min-height: 44px;
  padding: 7px 5px;
  border: 0;
  border-radius: 4px;
  color: var(--muted);
  background: transparent;
  font-size: 13px;
  font-weight: 700;
  line-height: 1.2;
  transition: background-color 180ms ease, color 180ms ease;
}

.mode-tab:hover {
  color: var(--text);
  background: var(--panel-strong);
}

.mode-tab.is-active {
  color: var(--action-ink);
  background: var(--action);
}

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

.field {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field > label,
.range-field > label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 650;
}

input,
select,
textarea {
  width: 100%;
  min-width: 0;
  min-height: 44px;
  padding: 9px 11px;
  border: 1px solid var(--border);
  border-radius: 6px;
  outline: 0;
  color: var(--text);
  background: var(--page);
  transition: border-color 180ms ease, background-color 180ms ease;
}

textarea {
  min-height: 82px;
  resize: vertical;
}

input:hover,
select:hover,
textarea:hover {
  border-color: var(--border-strong);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--focus);
  background: #131714;
}

input::placeholder,
textarea::placeholder {
  color: var(--subtle);
  opacity: 1;
}

.two-column-fields,
.color-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.three-column-fields {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 9px;
}

.compact-field input,
.compact-field select {
  padding-inline: 9px;
}

.input-with-action {
  position: relative;
}

.input-with-action input {
  padding-right: 52px;
}

.field-icon-button {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 36px;
  height: 36px;
  border: 0;
  background: transparent;
}

.field-icon-button .icon {
  width: 18px;
  height: 18px;
}

.color-fields {
  margin-top: 12px;
}

.color-control {
  min-height: 44px;
  padding: 5px 9px 5px 5px;
  border: 1px solid var(--border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  gap: 9px;
  background: var(--page);
}

.color-control input[type="color"] {
  width: 34px;
  min-height: 32px;
  height: 32px;
  padding: 0;
  border: 0;
  border-radius: 4px;
  background: transparent;
}

.color-control output {
  min-width: 0;
  overflow: hidden;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  text-overflow: ellipsis;
}

.logo-upload-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.file-trigger {
  min-height: 44px;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  background: var(--panel-strong);
  font-size: 13px;
  font-weight: 700;
  transition: background-color 180ms ease, border-color 180ms ease;
}

.file-trigger:hover {
  border-color: var(--border-strong);
  background: var(--panel-hover);
}

.visually-hidden:focus-visible + .file-trigger {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.file-name {
  min-width: 0;
  overflow: hidden;
  color: var(--subtle);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.clear-file-button {
  min-height: 36px;
  padding: 7px 9px;
  border: 0;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--muted);
  background: transparent;
  font-size: 12px;
  font-weight: 700;
}

.clear-file-button:hover {
  color: var(--text);
  background: var(--panel-strong);
}

.clear-file-button .icon {
  width: 16px;
  height: 16px;
}

.range-field {
  margin-top: 12px;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr) 42px;
  align-items: center;
  gap: 10px;
}

.range-field input[type="range"] {
  min-height: 32px;
  padding: 0;
  border: 0;
  accent-color: var(--success);
  background: transparent;
}

.range-field output {
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  text-align: right;
}

.generate-row {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  background: var(--panel);
}

.button {
  min-height: 44px;
  padding: 10px 15px;
  border: 1px solid transparent;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 750;
  transition: background-color 180ms ease, border-color 180ms ease, color 180ms ease, opacity 180ms ease;
}

.button:disabled {
  opacity: 0.42;
}

.primary-button {
  width: 100%;
  color: var(--action-ink);
  background: var(--action);
}

.primary-button:hover:not(:disabled) {
  background: var(--action-hover);
}

.primary-button.is-busy .icon {
  animation: spin 800ms linear infinite;
}

.secondary-button {
  min-width: 104px;
  border-color: var(--border);
  color: var(--text);
  background: var(--panel-strong);
}

.secondary-button:hover:not(:disabled) {
  border-color: var(--border-strong);
  background: var(--panel-hover);
}

.preview-pane {
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: var(--preview);
}

.preview-header {
  background: var(--page);
}

.dimensions {
  min-width: 90px;
  color: var(--muted);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  text-align: right;
}

.preview-stage {
  min-width: 0;
  min-height: 0;
  padding: 28px;
  flex: 1;
  overflow: auto;
  display: flex;
  align-items: center;
  justify-content: center;
}

.preview-surface {
  max-width: 100%;
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #111411;
  background: var(--white);
  box-shadow: var(--shadow);
}

.qr-surface {
  padding: 24px;
}

.qr-surface svg,
.qr-surface img {
  width: min(46vmin, 480px);
  height: auto;
  max-width: 100%;
  display: block;
}

.barcode-surface {
  min-width: min(100%, 260px);
  padding: 24px 32px 18px;
  flex-direction: column;
}

.barcode-surface svg {
  max-width: min(100%, 820px);
  height: auto;
  display: block;
}

.barcode-text {
  width: 100%;
  margin-top: 10px;
  overflow: hidden;
  color: #303631;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  text-align: center;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.empty-state {
  color: var(--subtle);
  text-align: center;
}

.empty-state p {
  margin: 10px 0 0;
  font-size: 14px;
}

.empty-icon {
  width: 48px;
  height: 48px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.5;
}

.export-bar {
  min-height: 74px;
  padding: 12px 18px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--page);
}

.status-message {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 13px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

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

.status-message.is-warning {
  color: var(--warning);
}

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

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

noscript {
  position: fixed;
  inset: 0;
  z-index: 200;
  padding: 32px;
  display: grid;
  place-items: center;
  color: var(--text);
  background: var(--page);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@media (max-width: 920px) {
  .workspace {
    grid-template-columns: 340px minmax(0, 1fr);
  }

  .panel-header,
  .preview-header {
    padding-inline: 16px;
  }

  .controls-body {
    padding-inline: 16px;
  }

  .generate-row {
    padding-inline: 16px;
  }
}

@media (max-width: 760px) {
  html,
  body {
    height: auto;
  }

  body {
    overflow: auto;
  }

  .topbar {
    position: sticky;
    z-index: 20;
    top: 0;
  }

  .workspace {
    height: auto;
    min-height: calc(100dvh - 60px);
    display: block;
  }

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

  #generator-form,
  .controls-body {
    overflow: visible;
  }

  .preview-pane {
    min-height: 600px;
  }

  .preview-stage {
    min-height: 430px;
    padding: 24px 16px;
  }

  .qr-surface svg,
  .qr-surface img {
    width: min(76vw, 420px);
  }

  .export-bar {
    align-items: stretch;
    flex-direction: column;
  }

  .status-message {
    white-space: normal;
  }

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

  .secondary-button {
    width: 100%;
  }
}

@media (max-width: 460px) {
  .topbar {
    padding-inline: 12px;
  }

  .build-badge,
  .privacy-state span {
    display: none;
  }

  .privacy-state {
    width: 36px;
    padding: 0;
    justify-content: center;
  }

  .icon-button {
    width: 40px;
    height: 40px;
  }

  .language-button {
    min-width: 62px;
    height: 40px;
    padding-inline: 9px;
  }

  .panel-header,
  .preview-header {
    min-height: 68px;
  }

  .controls-body {
    padding-top: 16px;
  }

  .two-column-fields {
    grid-template-columns: 1fr;
  }

  .three-column-fields {
    gap: 7px;
  }

  .color-fields {
    gap: 8px;
  }

  .color-control output {
    font-size: 11px;
  }

  .logo-upload-row {
    align-items: flex-start;
    flex-direction: column;
  }

  .file-trigger {
    width: 100%;
    justify-content: center;
  }

  .qr-surface {
    padding: 18px;
  }

  .barcode-surface {
    padding-inline: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}