main {
  width: min(1040px, calc(100% - 40px));
  margin: 0 auto;
  padding: clamp(3rem, 7vw, 5.5rem) 0 4.5rem;
  color: var(--tools-text);
  font-family: var(--tools-sans);
}

.hero {
  width: min(850px, 100%);
  margin: 0 auto clamp(2.25rem, 6vw, 4.25rem);
}

.eyebrow,
.step-label {
  margin: 0 0 .55rem;
  color: var(--tools-green-text);
  font-size: .78rem;
  font-weight: 750;
  letter-spacing: .055em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 760px;
  margin: 0;
  font-family: var(--tools-serif);
  font-size: clamp(2.45rem, 7vw, 4.75rem);
  font-weight: 500;
  line-height: .98;
  letter-spacing: -.035em;
}

.hero-copy {
  max-width: 720px;
  margin: 1.35rem 0 0;
  color: var(--tools-muted);
  font-size: clamp(1.05rem, 2.2vw, 1.22rem);
  line-height: 1.6;
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem 1rem;
  margin: 1.5rem 0 0;
  padding: 0;
  color: var(--tools-muted);
  font-size: .9rem;
  list-style: none;
}

.hero-proof li {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
}

.hero-proof li::before {
  width: .48rem;
  height: .48rem;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--tools-green);
  content: "";
}

.workspace {
  border: 1px solid var(--tools-line);
  border-radius: var(--tools-radius);
  background: var(--tools-surface);
  box-shadow: var(--tools-shadow);
  padding: clamp(1rem, 3vw, 1.75rem);
}

.section-heading,
.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
}

.section-heading {
  display: block;
  max-width: 760px;
}

.section-heading h2,
.panel-heading h2 {
  margin: 0;
  font-size: clamp(1.3rem, 2.5vw, 1.7rem);
  line-height: 1.15;
}

.section-heading p:last-child,
.panel-heading p,
.field-note,
.preview-summary,
.picker-note,
.busy-copy {
  color: var(--tools-muted);
  line-height: 1.5;
}

.section-heading > div > p:last-child,
.panel-heading > div > p:last-child {
  margin: .55rem 0 0;
}

.picker-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .75rem;
  margin-top: 1.25rem;
  padding: 1rem;
  border: 1px dashed color-mix(in srgb, var(--tools-line) 82%, var(--tools-green));
  border-radius: 14px;
  background: var(--tools-surface-soft);
}

.picker-note {
  flex: 1 1 280px;
  margin: 0;
  font-size: .9rem;
}

.visually-hidden-file {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

button,
select,
input {
  box-sizing: border-box;
  font: inherit;
}

button {
  min-height: 44px;
  border: 1px solid var(--tools-line);
  border-radius: 10px;
  cursor: pointer;
  transition: border-color 140ms ease, background-color 140ms ease, transform 140ms ease;
}

button:disabled {
  cursor: not-allowed;
  opacity: .5;
}

button:not(:disabled):active {
  transform: translateY(1px);
}

.primary-action,
.secondary-action,
.quiet-action,
.danger-action {
  padding: .68rem .95rem;
  font-weight: 700;
}

.primary-action {
  border-color: var(--tools-action);
  background: var(--tools-action);
  color: var(--tools-on-action);
}

.secondary-action {
  background: var(--tools-surface);
  color: var(--tools-text);
}

.quiet-action {
  background: transparent;
  color: var(--tools-text);
}

.danger-action {
  border-color: color-mix(in srgb, var(--tools-red) 48%, var(--tools-line));
  background: transparent;
  color: var(--tools-red);
}

@media (hover: hover) and (pointer: fine) {
  .primary-action:not(:disabled):hover { background: var(--tools-action-hover); border-color: var(--tools-action-hover); }
  .secondary-action:not(:disabled):hover,
  .quiet-action:not(:disabled):hover { border-color: var(--tools-green); background: var(--tools-green-soft); }
  .danger-action:not(:disabled):hover { background: color-mix(in srgb, var(--tools-red) 8%, transparent); }
  .image-actions button:not(:disabled):hover { border-color: var(--tools-green); background: var(--tools-green-soft); }
  .image-select:hover { background: var(--tools-surface-soft); }
}

button:focus-visible,
select:focus-visible,
input:focus-visible,
.image-select:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--tools-green) 42%, transparent);
  outline-offset: 2px;
}

.error-banner,
.inline-warning {
  margin-top: 1rem;
  border: 1px solid color-mix(in srgb, var(--tools-red) 48%, var(--tools-line));
  border-radius: 12px;
  background: color-mix(in srgb, var(--tools-red) 7%, var(--tools-surface));
  color: var(--tools-text);
}

.error-banner {
  padding: .85rem 1rem;
}

.inline-warning {
  display: grid;
  gap: .35rem;
  padding: .8rem .9rem;
  font-size: .9rem;
  line-height: 1.45;
}

.workspace-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin: 1.25rem 0 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--tools-line);
}

.workspace-toolbar > div:first-child {
  display: grid;
  gap: .2rem;
}

.workspace-toolbar span {
  color: var(--tools-muted);
  font-size: .86rem;
}

.toolbar-actions,
.export-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
}

.editor-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(310px, .8fr);
  gap: 1rem;
  align-items: start;
}

.preview-column,
.controls-column {
  min-width: 0;
  display: grid;
  gap: 1rem;
}

.preview-panel,
.export-panel,
.control-panel {
  min-width: 0;
  border: 1px solid var(--tools-line);
  border-radius: 14px;
  background: var(--tools-surface-soft);
  padding: 1rem;
}

.panel-heading.compact {
  margin-bottom: .9rem;
}

.dimension-badge {
  flex: 0 0 auto;
  padding: .34rem .5rem;
  border: 1px solid var(--tools-line);
  border-radius: 8px;
  background: var(--tools-surface);
  color: var(--tools-muted);
  font-family: var(--tools-mono);
  font-size: .78rem;
  font-variant-numeric: tabular-nums;
}

.canvas-stage {
  position: relative;
  width: 100%;
  min-height: 180px;
  margin-top: .9rem;
  overflow: hidden;
  border: 1px solid var(--tools-line);
  border-radius: 10px;
  background: var(--tools-surface);
}

.canvas-stage.transparent {
  background-color: var(--tools-surface);
  background-image: conic-gradient(
    color-mix(in srgb, var(--tools-line) 45%, transparent) 25%,
    transparent 0 50%,
    color-mix(in srgb, var(--tools-line) 45%, transparent) 0 75%,
    transparent 0
  );
  background-size: 22px 22px;
}

.canvas-stage canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.preview-empty {
  position: absolute;
  inset: 50% 1rem auto;
  margin: 0;
  color: var(--tools-muted);
  text-align: center;
  transform: translateY(-50%);
}

.preview-summary {
  margin: .7rem 0 0;
  font-family: var(--tools-mono);
  font-size: .82rem;
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .75rem;
}

.field {
  min-width: 0;
  display: grid;
  gap: .38rem;
  color: var(--tools-text);
  font-size: .88rem;
  font-weight: 650;
}

.field.full {
  grid-column: 1 / -1;
}

.field small,
.quality-control small {
  color: var(--tools-muted);
  font-size: .78rem;
  font-weight: 400;
  line-height: 1.4;
}

.field select,
.field input[type="number"],
.number-with-unit input,
.quality-control input[type="number"] {
  min-width: 0;
  width: 100%;
  min-height: 44px;
  padding: .55rem .65rem;
  border: 1px solid var(--tools-line);
  border-radius: 9px;
  background: var(--tools-surface);
  color: var(--tools-text);
}

.color-field input[type="color"] {
  width: 100%;
  min-height: 44px;
  padding: 4px;
  border: 1px solid var(--tools-line);
  border-radius: 9px;
  background: var(--tools-surface);
  cursor: pointer;
}

.color-field input[type="color"]::-webkit-color-swatch-wrapper { padding: 0; }
.color-field input[type="color"]::-webkit-color-swatch { border: 0; border-radius: 6px; }
.color-field input[type="color"]::-moz-color-swatch { border: 0; border-radius: 6px; }

.number-with-unit {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: .45rem;
}

.number-with-unit > span {
  color: var(--tools-muted);
  font-family: var(--tools-mono);
  font-size: .8rem;
  font-weight: 600;
}

.check-row {
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: .65rem;
  margin-top: .75rem;
  color: var(--tools-text);
  font-size: .88rem;
  line-height: 1.35;
  cursor: pointer;
}

.check-row input {
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  accent-color: var(--tools-green);
}

.field-note {
  margin: .5rem 0 0;
  font-size: .82rem;
}

.image-list {
  max-height: 430px;
  overflow: auto;
  display: grid;
  gap: .65rem;
  margin: 0;
  padding: 0;
  list-style: none;
  scrollbar-gutter: stable;
}

.image-list li {
  min-width: 0;
  display: grid;
  gap: .55rem;
  padding: .65rem;
  border: 1px solid var(--tools-line);
  border-radius: 11px;
  background: var(--tools-surface);
}

.image-list li.selected {
  border-color: var(--tools-green);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--tools-green) 26%, transparent);
}

.image-list li.failed {
  border-color: color-mix(in srgb, var(--tools-red) 38%, var(--tools-line));
}

.image-main {
  min-width: 0;
}

.image-select {
  width: 100%;
  min-height: 44px;
  display: grid;
  gap: .18rem;
  padding: .45rem .5rem;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--tools-text);
  text-align: left;
}

.image-select strong,
.image-failure strong {
  min-width: 0;
  overflow-wrap: anywhere;
  font-size: .9rem;
}

.image-select span,
.image-failure span {
  color: var(--tools-muted);
  font-size: .78rem;
  line-height: 1.35;
}

.image-failure {
  display: grid;
  gap: .2rem;
  padding: .45rem .5rem;
}

.image-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}

.image-actions button {
  min-height: 36px;
  padding: .35rem .55rem;
  background: transparent;
  color: var(--tools-text);
  font-size: .76rem;
  font-weight: 650;
}

.image-actions .danger-text {
  color: var(--tools-red);
}

.crop-panel .field.full {
  margin-bottom: .7rem;
}

.focal-control {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 92px;
  align-items: center;
  gap: .35rem .7rem;
  margin-top: .75rem;
}

.focal-control > label {
  grid-column: 1 / -1;
  font-size: .88rem;
  font-weight: 650;
}

.focal-control input[type="range"] {
  width: 100%;
  min-height: 44px;
  accent-color: var(--tools-green);
}

.compact-number input {
  text-align: right;
}

.quality-control {
  max-width: 310px;
  display: grid;
  gap: .4rem;
  margin-top: .9rem;
}

.quality-control > label {
  font-size: .88rem;
  font-weight: 650;
}

.export-actions {
  margin-top: 1rem;
}

.busy-copy {
  margin: .7rem 0 0;
  font-size: .84rem;
}

.empty-state {
  margin-top: 1.25rem;
  padding: clamp(2rem, 6vw, 3.5rem) 1rem;
  border: 1px solid var(--tools-line);
  border-radius: 14px;
  background: var(--tools-surface-soft);
  text-align: center;
}

.empty-state strong {
  display: block;
  font-family: var(--tools-serif);
  font-size: clamp(1.35rem, 3vw, 1.8rem);
  font-weight: 500;
}

.empty-state p {
  margin: .5rem 0 0;
  color: var(--tools-muted);
}

@media (max-width: 900px) {
  .editor-grid { grid-template-columns: 1fr; }
  .controls-column { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .crop-panel { grid-column: 1 / -1; }
}

@media (max-width: 680px) {
  main {
    width: min(100% - 24px, 1040px);
    padding-top: 2.6rem;
  }

  .hero { margin-bottom: 2.25rem; }
  .workspace { padding: .85rem; border-radius: 15px; }
  .workspace-toolbar { align-items: flex-start; flex-direction: column; }
  .toolbar-actions { width: 100%; }
  .toolbar-actions > button { flex: 1 1 180px; }
  .controls-column { grid-template-columns: 1fr; }
  .crop-panel { grid-column: auto; }
  .section-heading,
  .panel-heading { flex-direction: column; }
  .dimension-badge { align-self: flex-start; }
}

@media (max-width: 430px) {
  .hero h1 { font-size: clamp(2.15rem, 14vw, 3.15rem); }
  .hero-proof { display: grid; }
  .picker-actions { align-items: stretch; }
  .picker-actions > button { width: 100%; }
  .field-grid { grid-template-columns: 1fr; }
  .field.full { grid-column: auto; }
  .focal-control { grid-template-columns: minmax(0, 1fr) 86px; }
  .export-actions > button { width: 100%; }
  .image-actions button { flex: 1 1 110px; }
}

@media (prefers-color-scheme: dark) {
  .canvas-stage.transparent {
    background-color: var(--tools-surface);
    background-image: conic-gradient(
      color-mix(in srgb, var(--tools-line) 58%, transparent) 25%,
      transparent 0 50%,
      color-mix(in srgb, var(--tools-line) 58%, transparent) 0 75%,
      transparent 0
    );
  }
}

@media (prefers-reduced-motion: reduce) {
  button { transition: none; }
}