:root {
  color-scheme: dark;
  --color-page: oklch(0.213 0 0);
  --color-surface: oklch(0.244 0 0);
  --color-text: oklch(0.97 0 0);
  --color-muted: oklch(0.783 0 0);
  --color-line-strong: oklch(0.524 0 0);
  --color-accent: oklch(0.943 0 0);
  --color-accent-hover: oklch(1 0 0);
  --color-accent-ink: oklch(0.213 0 0);
  --color-danger: oklch(0.907 0 0);
  --color-danger-soft: oklch(0.269 0 0);
  --color-focus: oklch(0.907 0 0);
  --shadow-surface: 0 0 0 1px oklch(1 0 0 / 0.05);
  --radius-stage: 1.25rem;
  --radius-control: 0.75rem;
}

@media (prefers-contrast: more) {
  :root {
    --color-muted: oklch(0.907 0 0);
    --color-line-strong: oklch(0.773 0 0);
    --color-accent: oklch(1 0 0);
  }

}

* {
  box-sizing: border-box;
}

html {
  background: var(--color-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-block-size: 100dvh;
  margin: 0;
  color: var(--color-text);
  background: var(--color-page);
  font-family:
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  font-size: 1rem;
  line-height: 1.5;
}

button,
input,
summary {
  font: inherit;
}

button,
a,
summary,
input[type="file"] {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
}

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

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.site-main {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  inline-size: min(calc(100% - 2rem), 34rem);
  min-block-size: 100dvh;
  gap: clamp(0.75rem, 2vh, 1.25rem);
  margin-inline: auto;
  padding-block:
    calc(clamp(0.875rem, 2.5vh, 1.5rem) + env(safe-area-inset-top))
    calc(clamp(0.875rem, 2.5vh, 1.5rem) + env(safe-area-inset-bottom));
}

.wordmark {
  margin: 0;
}

.wordmark {
  color: var(--color-muted);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.phone-gate {
  display: none;
  max-inline-size: 26rem;
  gap: 0.5rem;
}

.phone-gate h2,
.phone-gate p {
  margin: 0;
}

.phone-gate h2 {
  font-size: clamp(1.75rem, 8vw, 2.5rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.phone-gate p {
  color: var(--color-muted);
}

.animation-panel {
  display: grid;
  min-inline-size: 0;
  align-content: center;
  gap: 0.75rem;
}

.source-panel {
  display: grid;
  min-inline-size: 0;
  gap: 0.625rem;
}

.stage-shell {
  position: relative;
  inline-size: min(100%, 34rem, max(16rem, calc(100dvh - 11rem)));
  aspect-ratio: 1;
  margin-inline: auto;
  border-radius: var(--radius-stage);
}

.upload-zone {
  position: absolute;
  z-index: 4;
  inset: 0;
  display: block;
  border-radius: inherit;
  cursor: pointer;
}

.file-input {
  position: absolute;
  z-index: 5;
  inset: 0;
  inline-size: 100%;
  block-size: 100%;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}

.preview-stage {
  position: relative;
  display: grid;
  inline-size: 100%;
  block-size: 100%;
  overflow: hidden;
  place-items: center;
  background: transparent;
  border-radius: inherit;
  box-shadow: none;
}

.stage-shell:has(.upload-zone:hover) .preview-stage,
.stage-shell:has(.upload-zone.is-dragging) .preview-stage {
  box-shadow: none;
}

.stage-shell:has(.upload-zone:hover) .preview-stage:not(.has-result) .ghost-flag,
.stage-shell:has(.upload-zone.is-dragging) .preview-stage:not(.has-result) .ghost-flag {
  opacity: 0.38;
}

.stage-shell:has(.file-input:focus-visible) {
  outline: 3px solid var(--color-focus);
  outline-offset: 3px;
}

.ghost-flag {
  position: absolute;
  inset: 0;
  inline-size: 100%;
  block-size: 100%;
  opacity: 0.32;
  pointer-events: none;
}

@media (prefers-contrast: more) {
  .ghost-flag {
    opacity: 0.5;
  }
}

#lottie-preview {
  position: absolute;
  z-index: 1;
  inset: 0;
  opacity: 0;
  pointer-events: none;
}

#lottie-preview,
.lottie-renderer,
.lottie-renderer svg {
  inline-size: 100% !important;
  block-size: 100% !important;
}

.stage-copy,
.stage-loading {
  position: absolute;
  z-index: 2;
  inset-inline: 1rem;
  inset-block-end: clamp(0.875rem, 3.5%, 1.25rem);
  display: grid;
  justify-items: center;
  color: var(--color-muted);
  pointer-events: none;
}

.stage-copy strong {
  color: var(--color-text);
  font-size: 0.9375rem;
  font-weight: 700;
}

.stage-copy span {
  font-size: 0.75rem;
}

.stage-loading {
  color: var(--color-text);
  font-size: 0.8125rem;
  font-weight: 700;
  opacity: 0;
}

.upload-zone.is-generating .stage-copy {
  opacity: 0;
}

.upload-zone.is-generating .stage-loading {
  opacity: 1;
}

.stage-shell:has(.upload-zone.is-generating) .ghost-flag {
  opacity: 0.42;
}

.preview-stage.has-result .ghost-flag {
  opacity: 0;
}

.preview-stage.has-result #lottie-preview {
  opacity: 1;
}

.stage-shell:has(.preview-stage.has-result) .stage-copy {
  opacity: 0;
}

.stage-shell:has(.upload-zone.is-dragging) .stage-copy {
  opacity: 1;
}

.upload-zone.is-dragging .stage-copy span,
.upload-zone.is-generating.is-dragging .stage-loading {
  display: none;
}

.stage-shell:has(.upload-zone.is-dragging) .preview-stage.has-result #lottie-preview {
  opacity: 0.4;
}

.field-error {
  margin: 0;
  color: var(--color-danger);
  font-size: 0.8125rem;
  font-weight: 650;
}

.error-summary {
  padding: 0.875rem 1rem;
  color: var(--color-danger);
  background: var(--color-danger-soft);
  border-radius: var(--radius-control);
  box-shadow: inset 0 0 0 1px color-mix(in oklch, var(--color-danger), transparent 68%);
}

.error-summary p {
  margin: 0;
}

.error-summary p + p {
  margin-block-start: 0.25rem;
}

.error-title {
  font-weight: 750;
}

.error-summary summary {
  min-block-size: 2.75rem;
  inline-size: fit-content;
  margin-block-start: 0.25rem;
  cursor: pointer;
  font-size: 0.8125rem;
  font-weight: 650;
  line-height: 2.75rem;
}

.error-summary code {
  overflow-wrap: anywhere;
  font-size: 0.75rem;
}

.result-controls {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  min-block-size: 2.75rem;
  align-items: center;
  justify-content: center;
  gap: 0.625rem;
  padding: 0.7rem 1rem;
  border-radius: var(--radius-control);
  font-size: 0.875rem;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
}

.button-primary {
  color: var(--color-accent-ink);
  background: var(--color-accent);
  border: 1px solid transparent;
}

.button-primary:hover {
  background: var(--color-accent-hover);
}

.button-secondary {
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-line-strong);
  box-shadow: var(--shadow-surface);
}

.button-secondary:hover {
  border-color: var(--color-accent);
}

.sr-only {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  white-space: nowrap;
  border: 0;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
}

@media (max-width: 28rem) {
  .site-main {
    inline-size: min(calc(100% - 1rem), 34rem);
  }

  .stage-shell {
    inline-size: min(100%, max(15rem, calc(100dvh - 10rem)));
  }

  .result-controls {
    grid-template-columns: minmax(0, 1fr);
  }
}

.phone-gated .site-main {
  grid-template-rows: auto auto;
  inline-size: min(calc(100% - 2rem), 28rem);
  align-content: center;
  gap: 1rem;
  padding-inline:
    max(1rem, env(safe-area-inset-left))
    max(1rem, env(safe-area-inset-right));
}

.phone-gated .animation-panel {
  display: none;
}

.phone-gated .phone-gate {
  display: grid;
}

@media (hover: none) and (pointer: coarse) and (max-width: 48rem),
  (hover: none) and (pointer: coarse) and (max-height: 32rem) {
  .site-main {
    grid-template-rows: auto auto;
    inline-size: min(calc(100% - 2rem), 28rem);
    align-content: center;
    gap: 1rem;
    padding-inline:
      max(1rem, env(safe-area-inset-left))
      max(1rem, env(safe-area-inset-right));
  }

  .animation-panel {
    display: none;
  }

  .phone-gate {
    display: grid;
  }
}

@media (prefers-reduced-motion: no-preference) {
  .ghost-flag,
  .stage-copy,
  .stage-loading,
  .button {
    transition-duration: 150ms;
    transition-timing-function: ease-out;
  }

  .ghost-flag,
  .stage-copy,
  .stage-loading {
    transition-property: opacity;
  }

  .button {
    transition-property: background-color, border-color, transform;
  }

  .button:active {
    transform: scale(0.96);
  }
}

@media (forced-colors: active) {
  .preview-stage {
    border: 1px solid CanvasText;
    box-shadow: none;
  }

  .button-primary,
  .button-secondary {
    color: ButtonText;
    background: ButtonFace;
    border: 1px solid ButtonText;
  }
}