:root {
  color-scheme: light;
  --canvas: oklch(0.965 0.008 80);
  --surface: oklch(0.995 0.003 80);
  --surface-muted: oklch(0.935 0.009 80);
  --ink: oklch(0.22 0.012 50);
  --muted: oklch(0.52 0.018 55);
  --hairline: oklch(0.85 0.012 70);
  --accent: oklch(0.61 0.19 36);
  --accent-dark: oklch(0.43 0.135 34);
  --error: oklch(0.52 0.2 28);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Noto Sans SC", sans-serif;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  color: var(--ink);
  background: var(--canvas);
}

button,
input {
  font: inherit;
}

button {
  touch-action: manipulation;
}

.skip-link {
  position: fixed;
  left: 16px;
  top: 12px;
  z-index: 10;
  padding: 8px 12px;
  color: var(--surface);
  background: var(--ink);
  transform: translateY(-160%);
}

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

.shell {
  width: min(980px, calc(100% - 40px));
  margin: 0 auto;
  padding: 54px 0 48px;
}

.masthead {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) auto;
  gap: 20px;
  align-items: start;
  padding-bottom: 34px;
}

.repo-link {
  align-self: start;
  min-height: 40px;
  padding: 11px 13px;
  border-radius: var(--radius-md);
  color: var(--ink);
  background: var(--surface-muted);
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
  transition: transform 120ms ease-out, background-color 140ms ease-out;
}

.repo-link:active {
  transform: scale(0.96);
}

.brand-mark {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  align-items: end;
  gap: 4px;
  width: 48px;
  height: 48px;
  padding: 8px;
  border-radius: var(--radius-md);
  background: var(--ink);
}

.brand-mark span {
  display: block;
  background: var(--surface);
  border-radius: 2px 2px 0 0;
}

.brand-mark span:nth-child(1) { height: 16px; }
.brand-mark span:nth-child(2) { height: 26px; background: var(--accent); }
.brand-mark span:nth-child(3) { height: 20px; }

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent-dark);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 8px;
  font-family: "Arial Narrow", "Avenir Next Condensed", -apple-system, "PingFang SC", sans-serif;
  font-size: clamp(34px, 5vw, 54px);
  line-height: 0.98;
  letter-spacing: -0.022em;
}

.lede {
  max-width: 650px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
  text-wrap: pretty;
}

.workspace {
  overflow: hidden;
  border-radius: var(--radius-lg);
  background: var(--surface);
  box-shadow: 0 1px 3px rgba(43, 35, 28, 0.12), 0 14px 38px rgba(43, 35, 28, 0.07);
}

.url-section,
.device-section,
.status-section {
  padding: 28px;
}

.url-section,
.device-section {
  border-bottom: 1px solid var(--hairline);
}

.section-heading {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 12px;
  margin-bottom: 22px;
}

.section-heading.compact {
  margin-bottom: 0;
}

.step {
  color: var(--accent-dark);
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  line-height: 1.8;
}

h2 {
  margin-bottom: 4px;
  font-size: 18px;
  line-height: 1.35;
  letter-spacing: -0.012em;
}

.section-heading p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.url-row {
  display: flex;
  gap: 12px;
  align-items: end;
  padding-left: 46px;
}

.field {
  display: grid;
  gap: 7px;
}

.field.grow {
  flex: 1;
}

.field > span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

input[type="url"] {
  width: 100%;
  height: 44px;
  padding: 0 13px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-md);
  color: var(--ink);
  background: var(--canvas);
  outline: none;
  transition: border-color 140ms ease-out, box-shadow 140ms ease-out;
}

input[type="url"]:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px oklch(0.61 0.19 36 / 0.14);
}

.primary-button,
.secondary-button {
  min-height: 44px;
  border: 0;
  border-radius: var(--radius-md);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 120ms ease-out, background-color 140ms ease-out, opacity 140ms ease-out;
}

.primary-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-width: 138px;
  padding: 0 17px;
  color: oklch(0.98 0.01 35);
  background: var(--accent-dark);
}

.button-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 3px oklch(0.61 0.19 36 / 0.2);
}

.secondary-button {
  padding: 0 16px;
  color: var(--ink);
  background: var(--surface-muted);
}

.primary-button:active,
.secondary-button:active {
  transform: scale(0.96);
}

.primary-button:focus-visible,
.secondary-button:focus-visible,
.remove-device:focus-visible,
.master-choice input:focus-visible + span,
.screen-toggle input:focus-visible + span,
.mode-choice input:focus-visible + span {
  outline: 3px solid oklch(0.61 0.19 36 / 0.24);
  outline-offset: 2px;
}

.click-mode {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  margin: 18px 0 0 46px;
  padding: 0;
  border: 0;
}

.mode-label {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.mode-options {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
  max-width: 540px;
  width: 100%;
  padding: 4px;
  border-radius: var(--radius-md);
  background: var(--surface-muted);
}

.mode-choice {
  position: relative;
  cursor: pointer;
}

.mode-choice input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.mode-choice > span {
  display: grid;
  gap: 4px;
  min-height: 54px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--muted);
  transition: color 140ms ease-out, background-color 140ms ease-out;
}

.mode-choice strong {
  color: var(--ink);
  font-size: 13px;
}

.mode-choice small {
  font-size: 11px;
  line-height: 1.4;
}

.mode-choice input:checked + span {
  color: oklch(0.83 0.01 70);
  background: var(--ink);
}

.mode-choice input:checked + span strong {
  color: var(--surface);
}

.data-consent {
  display: grid;
  gap: 8px;
  margin: 18px 0 0 46px;
  padding: 14px 16px;
  border-left: 3px solid var(--accent);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  background: oklch(0.945 0.025 54);
}

.consent-choice {
  position: relative;
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
  cursor: pointer;
}

.consent-choice input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.consent-choice > span {
  width: 18px;
  height: 18px;
  margin-top: 1px;
  border: 1px solid var(--hairline);
  border-radius: 3px;
  background: var(--surface);
  box-shadow: inset 0 0 0 2px var(--surface);
}

.consent-choice input:checked + span {
  border-color: var(--accent-dark);
  background: var(--accent-dark);
}

.consent-choice input:checked + span::after {
  content: "";
  display: block;
  width: 7px;
  height: 4px;
  margin: 4px 0 0 4px;
  border-left: 2px solid var(--surface);
  border-bottom: 2px solid var(--surface);
  transform: rotate(-45deg);
}

.consent-choice input:focus-visible + span {
  outline: 3px solid oklch(0.61 0.19 36 / 0.24);
  outline-offset: 2px;
}

.consent-choice strong {
  font-size: 12px;
  line-height: 1.55;
}

.data-consent p {
  margin: 0 0 0 28px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.65;
}

.data-consent a,
.site-footer a {
  color: var(--accent-dark);
  text-underline-offset: 3px;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.42;
}

.form-error {
  min-height: 20px;
  margin: 8px 0 -8px 46px;
  color: var(--error);
  font-size: 12px;
  line-height: 1.6;
}

.device-list {
  margin-left: 46px;
  border-top: 1px solid var(--hairline);
}

.device-row {
  display: grid;
  grid-template-columns: 46px minmax(130px, 1fr) 148px 84px 44px;
  align-items: center;
  min-height: 74px;
  border-bottom: 1px solid var(--hairline);
  transition: opacity 140ms ease-out;
}

.device-row.is-disabled {
  opacity: 0.4;
}

.screen-toggle,
.master-choice {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  cursor: pointer;
}

.screen-toggle input,
.master-choice input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.screen-toggle span {
  width: 30px;
  height: 18px;
  border-radius: 999px;
  background: var(--surface-muted);
  box-shadow: inset 0 0 0 1px var(--hairline);
  transition: background-color 140ms ease-out;
}

.screen-toggle span::after {
  content: "";
  display: block;
  width: 12px;
  height: 12px;
  margin: 3px;
  border-radius: 999px;
  background: var(--muted);
  transition: transform 160ms cubic-bezier(0.16, 1, 0.3, 1), background-color 140ms ease-out;
}

.screen-toggle input:checked + span {
  background: oklch(0.9 0.06 44);
}

.screen-toggle input:checked + span::after {
  background: var(--accent-dark);
  transform: translateX(12px);
}

.device-identity {
  display: grid;
  gap: 4px;
}

.device-identity strong {
  font-size: 14px;
}

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

.dimensions {
  display: flex;
  align-items: baseline;
  justify-content: flex-end;
  gap: 8px;
  padding-right: 28px;
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-variant-numeric: tabular-nums;
}

.dimensions b {
  min-width: 31px;
  text-align: right;
  font-size: 14px;
}

.dimensions span {
  color: var(--muted);
  font-size: 11px;
}

.master-choice {
  justify-content: flex-end;
}

.master-choice span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 58px;
  min-height: 32px;
  border-radius: var(--radius-sm);
  color: var(--muted);
  background: transparent;
  box-shadow: inset 0 0 0 1px var(--hairline);
  font-size: 12px;
  font-weight: 700;
  transition: color 140ms ease-out, background-color 140ms ease-out, box-shadow 140ms ease-out;
}

.master-choice input:checked + span {
  color: oklch(0.98 0.01 35);
  background: var(--accent-dark);
  box-shadow: none;
}

.remove-device {
  min-width: 40px;
  min-height: 40px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-sm);
  color: var(--muted);
  background: transparent;
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: color 140ms ease-out, background-color 140ms ease-out, transform 120ms ease-out;
}

.remove-device:active {
  transform: scale(0.96);
}

.custom-device-builder {
  display: grid;
  gap: 14px;
  margin: 18px 0 0 46px;
  padding: 16px;
  border-radius: var(--radius-md);
  background: var(--canvas);
  box-shadow: inset 0 0 0 1px var(--hairline);
}

.custom-device-copy {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.custom-device-copy strong {
  font-size: 13px;
}

.custom-device-copy span {
  color: var(--muted);
  font-size: 11px;
}

.custom-device-fields {
  display: grid;
  grid-template-columns: minmax(170px, 1fr) 92px 12px 92px auto;
  gap: 10px;
  align-items: end;
}

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

.compact-field > span {
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.compact-field input {
  width: 100%;
  height: 40px;
  min-width: 0;
  padding: 0 11px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-sm);
  color: var(--ink);
  background: var(--surface);
  outline: none;
  font-variant-numeric: tabular-nums;
  transition: border-color 140ms ease-out, box-shadow 140ms ease-out;
}

.compact-field input:focus-visible {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px oklch(0.61 0.19 36 / 0.14);
}

.dimension-separator {
  align-self: end;
  padding-bottom: 12px;
  color: var(--muted);
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 11px;
  text-align: center;
}

.add-device-button {
  min-height: 40px;
  white-space: nowrap;
}

.custom-device-error {
  min-height: 17px;
  margin: -4px 0 -4px;
  color: var(--error);
  font-size: 11px;
  line-height: 1.5;
}

.status-section {
  display: block;
}

.status-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 10px;
  margin: 20px 0 0 46px;
}

#toggle-sync.is-active {
  color: var(--surface);
  background: var(--accent-dark);
}

.danger-button {
  color: var(--error);
  background: oklch(0.94 0.025 30);
}

.scope-note {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 18px;
  padding: 22px 4px 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.75;
}

.scope-note > span {
  color: var(--ink);
  font-family: ui-monospace, "SFMono-Regular", Menlo, monospace;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.scope-note p {
  max-width: 680px;
  margin-bottom: 0;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 4px 0;
  color: var(--muted);
  font-size: 11px;
}

.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

@media (hover: hover) {
  .primary-button:hover:not(:disabled) { background: var(--accent); }
  .secondary-button:hover:not(:disabled) { background: oklch(0.9 0.016 72); }
  .remove-device:hover { color: var(--error); background: oklch(0.94 0.025 30); }
  .danger-button:hover:not(:disabled) { color: var(--surface); background: var(--error); }
  .master-choice:hover span { color: var(--ink); }
  .repo-link:hover { background: oklch(0.9 0.016 72); }
}

@media (max-width: 680px) {
  .shell {
    width: min(100% - 24px, 540px);
    padding-top: 28px;
  }

  .masthead {
    grid-template-columns: 40px minmax(0, 1fr);
    gap: 14px;
  }

  .repo-link {
    grid-column: 2;
    justify-self: start;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
    padding: 7px;
  }

  .url-section,
  .device-section,
  .status-section {
    padding: 22px 18px;
  }

  .url-row,
  .device-list,
  .click-mode,
  .data-consent,
  .custom-device-builder,
  .status-actions {
    margin-left: 0;
    padding-left: 0;
  }

  .url-row {
    display: grid;
  }

  .click-mode {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .primary-button {
    justify-self: start;
  }

  .form-error {
    margin-left: 0;
  }

  .device-row {
    grid-template-columns: 42px minmax(0, 1fr) 76px 44px;
    padding: 10px 0;
  }

  .dimensions {
    grid-column: 2;
    justify-content: flex-start;
    padding: 4px 0 0;
  }

  .master-choice {
    grid-column: 3;
    grid-row: 1 / span 2;
  }

  .remove-device,
  .device-row-spacer {
    grid-column: 4;
    grid-row: 1 / span 2;
  }

  .custom-device-copy {
    display: grid;
    gap: 4px;
  }

  .custom-device-fields {
    grid-template-columns: minmax(0, 1fr) 18px minmax(0, 1fr);
  }

  .custom-name-field {
    grid-column: 1 / -1;
  }

  .dimension-separator {
    grid-column: 2;
    grid-row: 2;
  }

  .add-device-button {
    grid-column: 1 / -1;
    justify-self: start;
  }

  .scope-note {
    grid-template-columns: 1fr;
  }

  .site-footer {
    display: grid;
  }

  .secondary-button {
    justify-self: start;
  }

  .status-actions {
    justify-content: flex-start;
  }
}

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