:root {
  color-scheme: dark;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: #10141c;
  color: #f8fafc;
  font-synthesis: none;
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(circle at 50% 0%, rgba(93, 72, 143, 0.18), transparent 34rem),
    linear-gradient(145deg, #111827, #1f2937 50%, #111827);
}

button,
input {
  font: inherit;
}

button:focus-visible,
input:focus-visible {
  outline: 3px solid rgba(192, 132, 252, 0.55);
  outline-offset: 3px;
}

.shell {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 48px 0 32px;
}

.hero {
  margin-bottom: 32px;
  text-align: center;
}

.brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
}

.brand h1 {
  margin: 0;
  background: linear-gradient(90deg, #c084fc, #f472b6);
  background-clip: text;
  color: transparent;
  font-size: clamp(2.25rem, 7vw, 3.5rem);
  letter-spacing: -0.04em;
}

.logo-wrap {
  display: grid;
  width: 52px;
  height: 52px;
  place-items: center;
  overflow: hidden;
  border-radius: 14px;
  background: white;
}

.logo-wrap img {
  width: 100%;
  height: 100%;
}

.hero p,
.drop-zone p,
.about p,
footer {
  color: #9ca3af;
}

.hero p {
  max-width: 650px;
  margin: 14px auto 0;
  font-size: 1.05rem;
}

.card,
.drop-zone {
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 16px;
  background: rgba(31, 41, 55, 0.76);
  box-shadow: 0 22px 55px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(16px);
}

.drop-zone {
  display: grid;
  min-height: 380px;
  padding: 54px 24px;
  place-items: center;
  align-content: center;
  border: 2px dashed #4b5563;
  text-align: center;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.drop-zone.is-dragging {
  border-color: #c084fc;
  background: rgba(126, 34, 206, 0.13);
  transform: translateY(-2px);
}

.drop-zone h2 {
  margin: 18px 0 4px;
  font-size: clamp(1.45rem, 4vw, 2rem);
}

.drop-zone p {
  margin: 0 0 24px;
}

.drop-icon {
  display: grid;
  width: 80px;
  height: 80px;
  place-items: center;
  border-radius: 999px;
  background: rgba(55, 65, 81, 0.8);
  color: #d1d5db;
  font-size: 2.5rem;
  line-height: 1;
}

.button {
  min-height: 44px;
  padding: 0 20px;
  border: 0;
  border-radius: 10px;
  color: white;
  cursor: pointer;
  font-weight: 700;
  transition: filter 150ms ease, transform 150ms ease;
}

.button:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

.button:disabled {
  cursor: wait;
  filter: grayscale(0.5);
  opacity: 0.65;
  transform: none;
}

.button-primary {
  background: linear-gradient(90deg, #a855f7, #ec4899);
}

.button-secondary {
  border: 1px solid #4b5563;
  background: transparent;
}

.button-success {
  background: linear-gradient(90deg, #22c55e, #10b981);
}

.workspace {
  display: grid;
  gap: 20px;
}

.toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 16px 22px;
  align-items: end;
  padding: 20px;
}

.view-control {
  display: grid;
  gap: 8px;
  align-content: end;
}

.control-label {
  color: #9ca3af;
  font-size: 0.82rem;
  font-weight: 700;
}

.segmented-control {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  border-radius: 10px;
  background: rgba(11, 15, 22, 0.36);
}

.segmented-button {
  min-height: 32px;
  padding: 0 11px;
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: #9ca3af;
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 800;
}

.segmented-button:hover {
  color: #f8fafc;
}

.segmented-button[aria-pressed="true"] {
  background: rgba(126, 34, 206, 0.2);
  color: #ead8ff;
}

.toolbar-actions {
  display: flex;
  grid-column: 2;
  grid-row: 1;
  gap: 10px;
}

.intensity-control {
  grid-column: 1;
  grid-row: 1;
}

.comparison-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.comparison-toolbar .status {
  flex: 1 1 auto;
  min-width: 0;
  overflow-wrap: anywhere;
  text-align: left;
}

.comparison-toolbar .view-control {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 10px;
}

.intensity-heading,
.range-labels {
  display: flex;
  justify-content: space-between;
}

.intensity-heading {
  margin-bottom: 12px;
  font-weight: 700;
}

.intensity-heading output {
  color: #e9d5ff;
}

.intensity-control input[type="range"] {
  width: 100%;
  accent-color: #c084fc;
}

.range-labels {
  margin-top: 7px;
  color: #9ca3af;
  font-size: 0.78rem;
}

.status {
  min-height: 1.5em;
  margin: 0;
  color: #d8b4fe;
  text-align: center;
}

.comparison {
  position: relative;
  overflow: hidden;
  border-radius: 18px;
}

.comparison-split {
  --split: 50%;
  aspect-ratio: 16 / 10;
  background: #0b0f16;
}

.comparison-split .comparison-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.comparison-split .comparison-corrected {
  z-index: 1;
}

.comparison-split .comparison-original {
  z-index: 2;
  clip-path: inset(0 calc(100% - var(--split)) 0 0);
}

.comparison-two-up {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding: 18px;
  background: rgba(31, 41, 55, 0.76);
}

.comparison-two-up .comparison-layer {
  position: relative;
  inset: auto;
  overflow: visible;
}

.comparison-two-up .comparison-original {
  order: 1;
  clip-path: none;
}

.comparison-two-up .comparison-corrected {
  order: 2;
}

.preview {
  min-width: 0;
  margin: 0;
  padding: 0;
}

.comparison-label {
  position: absolute;
  top: 18px;
  z-index: 3;
  margin: 0;
  padding: 6px 9px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(10, 10, 10, 0.62);
  color: white;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.comparison-label-original {
  left: 18px;
}

.comparison-label-corrected {
  right: 18px;
}

.comparison-two-up .comparison-label {
  top: 12px;
}

.image-stage {
  display: grid;
  min-height: 0;
  place-items: center;
  overflow: hidden;
  border-radius: 0;
  background: #0b0f16;
}

.comparison-two-up .image-stage {
  height: auto;
  border-radius: 12px;
}

.image-stage img,
.image-stage canvas {
  display: block;
  width: 100%;
  height: 100%;
  max-height: none;
  object-fit: contain;
  border-radius: 0;
}

.comparison-two-up .image-stage img,
.comparison-two-up .image-stage canvas {
  height: auto;
}

.comparison-divider {
  position: absolute;
  inset-block: 0;
  left: var(--split);
  z-index: 4;
  width: 2px;
  background: rgba(255, 255, 255, 0.82);
  pointer-events: none;
  transform: translateX(-1px);
}

.comparison-handle {
  position: absolute;
  top: 50%;
  left: var(--split);
  z-index: 4;
  display: grid;
  width: 44px;
  height: 44px;
  padding: 0;
  place-items: center;
  border: 2px solid white;
  border-radius: 50%;
  background: rgba(10, 10, 10, 0.55);
  color: white;
  cursor: ew-resize;
  font: inherit;
  transform: translate(-50%, -50%);
  touch-action: none;
}

.comparison-two-up .comparison-divider,
.comparison-two-up .comparison-handle {
  display: none;
}

.comparison-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: -8px;
}

.about {
  max-width: 760px;
  margin: 54px auto 0;
  text-align: center;
}

.about h2 {
  margin-bottom: 10px;
}

.about p {
  line-height: 1.7;
}

footer {
  margin-top: 50px;
  text-align: center;
  font-size: 0.9rem;
}

[hidden] {
  display: none !important;
}

@media (max-width: 760px) {
  .shell {
    width: min(100% - 20px, 1120px);
    padding-top: 28px;
  }

  .toolbar {
    grid-template-columns: 1fr;
  }

  .toolbar-actions {
    display: grid;
    grid-column: 1;
    grid-row: 2;
    grid-template-columns: 1fr 1fr;
  }

  .intensity-control {
    grid-column: 1;
    grid-row: 1;
  }

  .comparison-toolbar {
    align-items: stretch;
    flex-direction: column;
    gap: 10px;
  }

  .comparison-toolbar .status {
    text-align: center;
  }

  .comparison-toolbar .view-control {
    justify-content: space-between;
  }

  .comparison-two-up {
    grid-template-columns: 1fr;
  }

  .comparison-actions {
    margin-top: 0;
  }
}