:root {
  color-scheme: dark;
  --page: #050505;
  --surface: #090909;
  --surface-raised: #0d0d0d;
  --border: #1a1a1a;
  --border-strong: #242424;
  --text: #ededed;
  --text-secondary: #808080;
  --text-muted: #7a7a7a;
  --accent: #8f2020;
  --accent-active: #b52a2a;
  --radius: 7px;
  --content-width: 46rem;
  --motion-fast: 0s;
  --motion-normal: 0s;
  --motion-ease: ease-out;
  --transition-fast: var(--motion-fast) var(--motion-ease);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
}

html[data-motion="on"] {
  --motion-fast: 140ms;
  --motion-normal: 180ms;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

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

body {
  min-height: 100vh;
  margin: 0;
  background: var(--page);
  color: var(--text);
  font-size: 1rem;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: var(--accent);
  color: #fff;
}

.shell {
  width: min(calc(100% - 2rem), var(--content-width));
  margin-inline: auto;
  padding-block: clamp(2rem, 7vh, 4.5rem) 4rem;
}

.masthead {
  display: grid;
  justify-items: start;
  gap: 0.65rem;
  margin-bottom: 2.25rem;
  padding-inline: 0.125rem;
}

.wordmark {
  margin: 0;
  line-height: 1;
}

.wordmark__toggle {
  display: block;
  margin: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-size: 1.125rem;
  font-weight: 650;
  letter-spacing: -0.025em;
  line-height: 1;
  text-align: left;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.wordmark__toggle:hover {
  color: #fff;
}

.wordmark__toggle:focus-visible {
  border-radius: 2px;
  outline: 1px solid var(--accent-active);
  outline-offset: 4px;
}

.wordmark__accent {
  --pulse-opacity: 0.7;
  color: var(--accent-active);
}

html[data-motion="on"] .wordmark__accent {
  animation: interface-pulse 2s ease-in-out infinite;
}

.live-metrics {
  display: flex;
  align-items: baseline;
  gap: 1.1rem;
  margin: 0;
  color: var(--text-secondary);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.8125rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.045em;
}

.live-metrics div {
  display: flex;
  gap: 0.35rem;
}

.live-metrics dt,
.live-metrics dd {
  margin: 0;
}

.live-metrics > div:first-child dd,
.quick-pr output {
  min-width: 4ch;
  color: #999;
  text-align: right;
}

.live-metrics dd[title] {
  cursor: help;
}

.quick-pr {
  display: inline-flex;
  align-items: baseline;
  gap: 0.35rem;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  letter-spacing: inherit;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.quick-pr:hover,
.quick-pr:focus-visible {
  color: var(--text);
}

.quick-pr:focus-visible {
  outline: 1px solid var(--accent-active);
  outline-offset: 3px;
}

.quick-pr:active {
  color: #ddd;
}

.quick-pr[data-scanning="true"] {
  color: var(--accent-active);
}

html[data-motion="on"] .quick-pr[data-scanning="true"] {
  --pulse-opacity: 0.45;
  animation: interface-pulse 800ms ease-in-out infinite;
}

html[data-motion="on"] .quick-pr[data-scanning="false"] {
  animation: result-settle var(--motion-normal) var(--motion-ease);
}

@keyframes interface-pulse {
  50% { opacity: var(--pulse-opacity); }
}

@keyframes result-settle {
  from {
    opacity: 0.55;
    transform: translateY(2px);
  }
}

.tools {
  display: grid;
  gap: 0.75rem;
}

.tool {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
}

.tool__region {
  display: grid;
  grid-template-rows: 0fr;
  margin: 0;
  padding: 0;
  border: 0;
  transition: grid-template-rows var(--motion-normal) var(--motion-ease);
}

.tool__region[data-expanded="true"] {
  grid-template-rows: 1fr;
}

.tool__content {
  min-height: 0;
  overflow: hidden;
  opacity: 0;
  transform: translateY(-3px);
  transition: opacity var(--motion-normal) var(--motion-ease), transform var(--motion-normal) var(--motion-ease);
}

.tool__region[data-expanded="true"] .tool__content {
  opacity: 1;
  transform: translateY(0);
}

.tool__title {
  overflow-wrap: anywhere;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.tool__toggle {
  display: flex;
  width: 100%;
  min-height: 4.25rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.875rem 1.125rem;
  border: 0;
  background: var(--surface-raised);
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.tool__toggle:hover {
  background: #101010;
}

.tool__toggle:active {
  background: #0b0b0b;
  color: #e2e2e2;
}

.tool__toggle:focus-visible {
  outline: 1px solid var(--accent-active);
  outline-offset: -3px;
}

.tool__indicator {
  position: relative;
  width: 0.875rem;
  height: 0.875rem;
  flex: none;
  color: #8a8a8a;
  transform: rotate(0deg);
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.tool__indicator::before {
  position: absolute;
  top: 0.125rem;
  left: 0.1875rem;
  width: 0.4375rem;
  height: 0.4375rem;
  border-right: 1px solid currentColor;
  border-bottom: 1px solid currentColor;
  content: "";
  transform: rotate(45deg);
}

.tool__toggle[aria-expanded="true"] .tool__indicator {
  color: #a0a0a0;
  transform: rotate(180deg);
}

.converter {
  padding: 1.125rem;
}

.converter-side {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.converter-side legend {
  width: 100%;
  margin: 0 0 0.75rem;
  padding: 0;
  color: var(--text-secondary);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.4;
  text-transform: uppercase;
}

.field-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(7rem, 0.42fr);
  gap: 0.625rem;
}

.field {
  display: grid;
  min-width: 0;
  gap: 0.35rem;
}

.field--game {
  margin-bottom: 0.625rem;
}

.field > span {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.35;
}

.field input,
.field select,
.field output {
  width: 100%;
  height: 2.625rem;
  min-width: 0;
  border: 1px solid var(--border-strong);
  border-radius: 5px;
  background: #0b0b0b;
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 1rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.25;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

.field input,
.field select {
  padding: 0.625rem 0.75rem;
}

.field output {
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 0.625rem 0.75rem;
  color: #f1f1f1;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.field select {
  cursor: pointer;
}

.field input:not(:disabled):hover,
.field select:not(:disabled):hover {
  border-color: #303030;
}

.field input:focus-visible,
.field select:focus-visible {
  border-color: var(--accent-active);
  background: #0d0d0d;
  outline: 1px solid var(--accent-active);
  outline-offset: 1px;
}

.field input:not(:disabled):active,
.field select:not(:disabled):active {
  border-color: #3a3a3a;
}

.field input[aria-invalid="true"] {
  border-color: #713939;
}

.field input[readonly] {
  color: #8a8a8a;
  cursor: default;
}

.converter-bridge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  min-height: 3.25rem;
  margin-block: 0.875rem;
  border-block: 1px solid var(--border);
}

button,
input,
select {
  font: inherit;
}

.icon-button,
.link-control,
.unit-button,
.converter-actions button,
.cps-retry {
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast), opacity var(--transition-fast), transform var(--transition-fast);
}

.icon-button:not(:disabled):hover,
.link-control:not(:disabled):hover,
.unit-button:not(:disabled):hover,
.converter-actions button:not(:disabled):hover,
.cps-retry:not(:disabled):hover {
  color: var(--text);
}

.icon-button:focus-visible,
.link-control:focus-visible,
.unit-button:focus-visible,
.converter-actions button:focus-visible,
.cps-retry:focus-visible {
  border-color: var(--accent-active);
  outline: 1px solid var(--accent-active);
  outline-offset: 1px;
}

.icon-button:disabled,
.converter-actions button:disabled {
  border-color: var(--border);
  color: #777;
  cursor: not-allowed;
  opacity: 0.5;
}

.icon-button:not(:disabled):active,
.link-control:not(:disabled):active,
.unit-button:not(:disabled):active,
.converter-actions button:not(:disabled):active,
.cps-retry:not(:disabled):active {
  background: #111;
  color: #ddd;
}

.icon-button {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-color: var(--border-strong);
  border-radius: 4px;
  color: #aaa;
  font-size: 1rem;
  line-height: 1;
}

.icon-button:not(:disabled):hover {
  border-color: #383838;
  background: var(--surface-raised);
}

.link-control {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  min-height: 2.25rem;
  padding: 0.25rem 0.375rem;
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.8125rem;
  line-height: 1;
}

.link-control svg {
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.3;
}

.link-control[aria-pressed="true"] {
  color: #a86d6d;
}

.unit-button {
  min-width: 1.75rem;
  min-height: 1.75rem;
  padding: 0.125rem;
  border-radius: 3px;
  color: #a86d6d;
  line-height: 1;
}

.converter-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1rem;
  padding-top: 0.875rem;
  border-top: 1px solid var(--border);
}

.conversion-metrics {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 0;
  color: var(--text-secondary);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.5;
}

.conversion-metrics output {
  display: inline-block;
  color: #999;
  text-align: right;
}

.conversion-metrics [data-output="cm-360"] {
  min-width: 5ch;
}

.conversion-metric {
  white-space: nowrap;
}

.conversion-metric--edpi {
  display: inline-flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.35rem;
}

.conversion-metric--edpi output {
  min-width: 4ch;
  text-align: center;
}

.converter-actions {
  display: flex;
  align-items: center;
  flex: none;
  gap: 0.25rem;
}

.converter-actions button,
.cps-retry {
  min-height: 2rem;
  padding: 0.25rem 0.45rem;
  border-radius: 4px;
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.8125rem;
  line-height: 1;
}

.converter-actions button[data-state="copied"] {
  color: #b76a6a;
}

html[data-motion="on"] :is(
  .wordmark__toggle,
  .quick-pr,
  .icon-button,
  .link-control,
  .unit-button,
  .converter-actions button,
  .cps-retry
):not(:disabled):active {
  transform: scale(0.98);
}

.tester-panel {
  padding: 0.75rem;
  border-top: 1px solid var(--border);
  background: var(--surface);
}

.measurement-target {
  position: relative;
  display: grid;
  width: 100%;
  min-height: clamp(16rem, 45vw, 22rem);
  aspect-ratio: 2 / 1;
  place-content: center;
  justify-items: center;
  gap: 1.25rem;
  padding: 1.5rem;
  border: 1px solid var(--border-strong);
  border-radius: 5px;
  background: #080808;
  color: var(--text);
  cursor: crosshair;
  text-align: center;
  touch-action: manipulation;
  user-select: none;
  -webkit-user-select: none;
  transition: border-color var(--transition-fast), background-color var(--transition-fast), color var(--transition-fast);
}

.measurement-state {
  position: absolute;
  top: 0.75rem;
  right: 0.875rem;
  color: var(--text-muted);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1.4;
  text-transform: uppercase;
}

.measurement-target:hover {
  background: #0b0b0b;
}

.measurement-target:active {
  background: var(--surface-raised);
}

.measurement-target:disabled {
  border-color: var(--border);
  background: var(--surface);
  color: #777;
  cursor: not-allowed;
}

.measurement-target[aria-pressed="true"],
.measurement-target[data-phase="running"] {
  border-color: #4a1919;
  background: #0b0808;
}

.measurement-target:focus-visible {
  outline: 1px solid var(--accent-active);
  outline-offset: -3px;
}

.cps-retry {
  display: block;
  min-width: 5rem;
  margin: 0.75rem auto 0;
}

.cps-retry[hidden] {
  display: none;
}

html[data-motion="on"] .cps-retry:not([hidden]),
html[data-motion="on"] .measurement-target[data-state="done"] .measurement-reading {
  animation: result-settle var(--motion-normal) var(--motion-ease);
}

.measurement-primary,
.measurement-secondary {
  display: grid;
  justify-items: center;
}

.measurement-primary {
  gap: 0.75rem;
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-variant-numeric: tabular-nums;
}

.measurement-primary > span:first-child {
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.measurement-primary output {
  min-width: 4ch;
  color: #d8d8d8;
  font-size: clamp(2.25rem, 6vw, 3rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1;
  text-align: center;
}

.measurement-secondary {
  gap: 0.35rem;
  color: var(--text-secondary);
  font-family: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", monospace;
  font-size: 0.75rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.4;
}

.measurement-secondary [data-output="cps-prompt"],
.measurement-secondary [data-output="polling-prompt"] {
  color: #929292;
}

.measurement-secondary [data-label="cps-time"],
.measurement-secondary [data-output="polling-detail"] {
  color: var(--text-muted);
}

.measurement-secondary [data-output="cps-time"] {
  display: inline-block;
  min-width: 4.5ch;
  text-align: right;
}

.measurement-reading {
  display: inline-flex;
  align-items: baseline;
  gap: 0.375rem;
  white-space: nowrap;
}

.measurement-reading output {
  text-align: right;
}

.measurement-reading small {
  color: var(--text-secondary);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  line-height: 1;
  text-transform: uppercase;
}

.measurement-reading .polling-class {
  margin-left: 0.25rem;
  color: var(--text-muted);
  letter-spacing: 0;
  text-transform: none;
}

.polling-class[hidden] {
  display: none;
}

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

.clipboard-buffer {
  position: fixed;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

@media (max-width: 35rem) {
  .shell {
    width: min(calc(100% - 1.5rem), var(--content-width));
    padding-block: 1.5rem 2.5rem;
  }

  .masthead {
    margin-bottom: 1.5rem;
  }

  .converter-footer {
    align-items: flex-start;
  }
}

@media (max-width: 28rem) {
  .shell {
    width: calc(100% - 1rem);
    padding-block: 1.25rem 2rem;
  }

  .tool__toggle {
    min-height: 4rem;
    padding-inline: 0.875rem;
  }

  .converter {
    padding: 1rem 0.875rem;
  }

  .field-row {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .converter-footer {
    flex-direction: column;
    gap: 0.5rem;
  }

  .converter-actions {
    align-self: flex-end;
  }

  .measurement-target {
    gap: 1.25rem;
    padding: 1rem 0.875rem;
  }
}

@media (pointer: coarse) {
  .field input,
  .field select {
    height: 2.75rem;
  }

  .icon-button {
    width: 2.75rem;
    height: 2.75rem;
  }

  .link-control,
  .unit-button,
  .converter-actions button,
  .cps-retry {
    min-height: 2.75rem;
    padding-inline: 0.625rem;
  }
}

@media (max-width: 20rem) {
  .live-metrics {
    flex-wrap: wrap;
  }
}

@media (prefers-reduced-motion: reduce) {
  html[data-motion="on"] {
    --motion-fast: 0s;
    --motion-normal: 0s;
  }

  html[data-motion="on"] .wordmark__accent,
  html[data-motion="on"] .quick-pr[data-scanning],
  html[data-motion="on"] .cps-retry:not([hidden]),
  html[data-motion="on"] .measurement-target[data-state="done"] .measurement-reading {
    animation: none;
  }
}