.tool-surface {
  margin-top: 18px;
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-surface);
  background: var(--surface);
}

.field-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: end;
  gap: 20px;
}

.date-input-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr));
  align-items: start;
  gap: 10px 20px;
}

.field {
  min-width: 0;
}

label,
legend {
  color: var(--text-strong);
  font-size: 15px;
  font-weight: 600;
}

label {
  display: block;
  margin-bottom: 6px;
}

input[type="date"],
input[type="text"],
input[type="file"],
select,
textarea {
  min-width: 0;
  max-width: 100%;
  width: 100%;
  min-height: 50px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  background: var(--surface);
  color: var(--text-strong);
  font: inherit;
  line-height: 1.4;
}

input[type="date"],
input[type="text"],
select {
  padding: 10px 12px;
}

input[type="file"] {
  padding: 6px;
}

input[type="file"]::file-selector-button {
  min-height: 36px;
  margin-right: 10px;
  padding: 6px 12px;
  border: 1px solid var(--border-strong);
  border-radius: calc(var(--radius-control) - 2px);
  background: var(--surface);
  color: var(--text-strong);
  cursor: pointer;
  font: inherit;
  font-weight: 600;
}

textarea {
  min-height: 170px;
  max-height: 55vh;
  resize: vertical;
  padding: 12px;
}

input[aria-invalid="true"],
textarea[aria-invalid="true"] {
  border-color: var(--error);
}

.help,
.field-error,
.status-line,
.privacy-note,
.result-note {
  font-size: 14px;
  line-height: 1.55;
}

.help {
  margin: 6px 0 0;
  color: var(--text-muted);
}

.field-error {
  min-height: 22px;
  margin: 4px 0 0;
  color: var(--error);
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 17px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  background: var(--surface);
  color: var(--text-strong);
  cursor: pointer;
  font: inherit;
  font-weight: 600;
  line-height: 1.25;
}

.button:hover:not(:disabled) {
  border-color: var(--action);
  color: var(--action-hover);
}

.button-primary {
  border-color: var(--action);
  background: var(--action);
  color: #fff;
}

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

.button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

.swap-button {
  min-width: 104px;
  margin-bottom: 26px;
}

.option-row,
.action-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 16px;
}

.option-row {
  margin-top: 12px;
}

.checkbox-label {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  cursor: pointer;
}

.checkbox-label input {
  width: 20px;
  height: 20px;
  margin: 0;
  accent-color: var(--action);
}

.privacy-note {
  margin: 10px 0 0;
  color: var(--text-muted);
}

.result-region {
  min-height: 160px;
  margin-top: 18px;
  padding: 18px 0 0;
  border-top: 1px solid var(--border);
}

.result-region h2 {
  margin: 0 0 8px;
  font-size: 20px;
}

.result-primary {
  margin: 0 0 8px;
  color: var(--text-strong);
  font-size: 36px;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  line-height: 1.15;
}

.result-direction,
.result-trace,
.result-note {
  margin: 6px 0;
}

.result-details {
  margin: 14px 0 16px;
  border-top: 1px solid var(--border);
}

.result-detail {
  min-width: 0;
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 12px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}

.result-detail dt {
  color: var(--text-muted);
  font-size: 13px;
}

.result-detail dd {
  margin: 0;
  color: var(--text-strong);
  font-weight: 600;
}

.status-line {
  min-height: 24px;
  margin: 8px 0 0;
  color: var(--success);
}

.status-line[data-state="error"] {
  color: var(--error);
}

.empty-result {
  margin: 12px 0;
  color: var(--text-muted);
}

.counter-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin: 14px 0 16px;
  border-block: 1px solid var(--border);
}

.counter-row {
  min-width: 0;
  display: flex;
  flex-direction: column-reverse;
  justify-content: center;
  gap: 3px;
  padding: 12px 10px;
  border-right: 1px solid var(--border);
}

.counter-row:last-child {
  border-right: 0;
}

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

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

.counter-more {
  margin-bottom: 16px;
}

.counter-more summary {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--text-strong);
  cursor: pointer;
  font-size: 14px;
  font-weight: 650;
}

.counter-value {
  color: var(--text-strong);
  font-size: 20px;
  font-variant-numeric: tabular-nums;
  font-weight: 650;
  line-height: 1.2;
}

.counter-label {
  color: var(--text);
  font-size: 14px;
  line-height: 1.45;
}

.counter-row dd,
.counter-row dt {
  margin: 0;
}

.converter-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr 1fr;
  gap: 16px 20px;
}

.converter-value {
  grid-column: auto;
}

.converter-options {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 12px 16px;
  margin-top: 12px;
}

.converter-options .field {
  width: min(220px, 100%);
}

.basis {
  padding: 8px 0;
  border-block: 1px solid var(--border);
  color: var(--text-strong);
  font-size: 14px;
}

.method-list li + li {
  margin-top: 8px;
}

.field-label {
  margin: 0 0 6px;
  color: var(--text-strong);
  font-size: 15px;
  font-weight: 600;
}

.file-picker-row {
  min-height: 50px;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  background: var(--surface);
}

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

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

.file-picker-button {
  flex: 0 0 auto;
  min-height: 44px;
  padding-block: 7px;
}

.file-summary {
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--text-muted);
  font-size: 14px;
}

.target-fieldset {
  min-width: 0;
  margin: 16px 0 0;
  padding: 16px 0 0;
  border: 0;
  border-top: 1px solid var(--border);
}

.target-fieldset legend {
  padding: 0 6px;
}

.preset-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.preset-button {
  padding-inline: 10px;
}

.preset-button[aria-pressed="true"] {
  border-color: var(--action);
  color: var(--action-hover);
  outline: 2px solid var(--action);
  outline-offset: -2px;
}

.target-input-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 110px;
  align-items: start;
  gap: 12px;
  margin-top: 10px;
}

.unit-field {
  min-width: 0;
}

.image-result {
  min-height: 0;
}

.image-preview {
  width: 100%;
  max-width: 100%;
  max-height: 420px;
  display: block;
  margin: 14px 0 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-control);
  background: var(--surface-muted);
  object-fit: contain;
}

.tool-image-compressor .tool-surface {
  display: grid;
  grid-template-columns: minmax(300px, 0.86fr) minmax(390px, 1.14fr);
  align-items: start;
  column-gap: 24px;
  padding: 24px;
}

.image-control-panel {
  min-width: 0;
}

.image-control-panel > .action-row {
  margin-top: 14px;
}

.tool-image-compressor .image-result {
  min-width: 0;
  min-height: 420px;
  margin: 0;
  padding: 0 0 0 24px;
  border-top: 0;
  border-left: 1px solid var(--border);
}

.tool-image-compressor .image-result > h2 {
  font-size: 18px;
}

.tool-image-compressor .image-result > h2:focus-visible {
  outline-offset: 5px;
}

.tool-image-compressor .image-result .button-primary {
  width: 100%;
}

.image-result-placeholder {
  min-height: 420px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 24px;
  border-radius: var(--radius-control);
  background: var(--surface-muted);
}

.image-result-placeholder h2 {
  max-width: 440px;
  margin-bottom: 6px;
  font-size: 24px;
  line-height: 1.2;
}

.result-kicker {
  margin: 0 0 6px;
  color: var(--action-hover);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.placeholder-facts {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 20px;
  margin: 22px 0 0;
  border-top: 1px solid var(--border);
}

.placeholder-facts div {
  padding-top: 14px;
}

.placeholder-facts dt {
  color: var(--text-muted);
  font-size: 12px;
}

.placeholder-facts dd {
  margin: 3px 0 0;
  color: var(--text-strong);
  font-size: 14px;
  font-weight: 650;
}

.result-more {
  margin: 12px 0 14px;
  border-block: 1px solid var(--border);
}

.result-more summary {
  min-height: 44px;
  display: flex;
  align-items: center;
  color: var(--text-strong);
  cursor: pointer;
  font-size: 14px;
  font-weight: 650;
}

.result-more .result-details {
  margin: 0 0 12px;
}

@media (max-width: 899px) {
  .tool-image-compressor .tool-surface {
    grid-template-columns: minmax(0, 1fr);
    row-gap: 0;
    padding: 24px;
  }

  .tool-image-compressor .image-result {
    min-height: 0;
    margin-top: 28px;
    padding: 28px 0 0;
    border-top: 1px solid var(--border);
    border-left: 0;
  }

  .image-result-placeholder {
    min-height: 160px;
    padding: 20px;
  }
}

.startup-help {
  margin-top: 20px;
  padding: 16px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  background: var(--surface);
}

.startup-help h2 {
  margin: 0 0 8px;
  font-size: 18px;
}

.startup-help p {
  margin-bottom: 12px;
}

@media (max-width: 767px) {
  .tool-surface {
    padding: 16px;
  }

  .field-grid,
  .converter-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .swap-button {
    justify-self: start;
    margin: 0;
  }

  .converter-value {
    grid-column: auto;
  }

  .result-primary {
    font-size: 30px;
  }

  .result-detail {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .target-input-row {
    grid-template-columns: 1fr;
  }

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

  .converter-options .field {
    width: 100%;
    grid-column: 1 / -1;
  }

  .converter-options .button {
    width: 100%;
  }

  #swap-units {
    grid-column: 1;
    grid-row: 1;
  }

  #reset-length {
    grid-column: 2;
    grid-row: 1;
  }
}

@media (max-width: 480px) {
  .tool-image-compressor .tool-surface {
    padding: 20px;
  }

  .preset-row,
  .placeholder-facts {
    grid-template-columns: 1fr 1fr;
  }

  .image-result-placeholder {
    padding: 20px;
  }
}

@media (max-width: 374px) {
  .tool-surface {
    margin-inline: -4px;
    padding: 14px;
  }
}