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

:root {
  color-scheme: dark;
  --ink: #f6efe2;
  --muted: #a89888;
  --paper: #f4ead8;
  --paper-edge: #c8b898;
  --navy: #0f121c;
  --panel: #1a1f2e;
  --line: #3a4258;
  --safe: #c84838;
  --safe-glow: rgba(200, 72, 56, 0.35);
  --mint: #5ee0b8;
  --reduce-pct: 0;
}

html {
  font-family: "Hiragino Mincho ProN", "Hiragino Sans", Meiryo, serif;
  background: var(--navy);
  color: var(--ink);
}

body {
  margin: 0;
  min-height: 100dvh;
  position: relative;
}

.darkroom {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(ellipse 120% 80% at 50% 0%, #1a2030 0%, #0a0c12 55%, #050608 100%);
}

.safelight {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 70% 45% at 18% 12%, var(--safe-glow), transparent 62%);
  mix-blend-mode: screen;
  opacity: 0.9;
}

.vignette {
  position: absolute;
  inset: 0;
  box-shadow: inset 0 0 120px rgba(0, 0, 0, 0.65);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.masthead,
.app {
  position: relative;
  z-index: 1;
}

.masthead {
  padding: 12px 16px;
}

.back {
  color: var(--mint);
  text-decoration: none;
  font-weight: 700;
  font-family: "Hiragino Sans", sans-serif;
}

.back:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
}

.app {
  max-width: 520px;
  margin: 0 auto;
  padding: 0 16px 36px;
}

.hero h1 {
  margin: 4px 0 0;
  font-size: clamp(1.55rem, 5vw, 1.95rem);
  line-height: 1.15;
  color: var(--paper);
  text-shadow: 0 2px 18px rgba(200, 72, 56, 0.25);
}

.hero h1 span {
  display: block;
  font-size: 0.92em;
}

.kicker {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: #e8a090;
  font-family: ui-monospace, Menlo, monospace;
}

.lede {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  font-family: "Hiragino Sans", sans-serif;
}

.status {
  margin: 12px 0;
  padding: 10px 12px;
  border-radius: 8px;
  background: #2a1414;
  border: 1px solid #b05050;
  color: #ffd8d8;
  font-family: "Hiragino Sans", sans-serif;
}

.notice {
  margin: 0 0 12px;
  padding: 8px 10px;
  border-left: 3px solid #e0a050;
  background: rgba(224, 160, 80, 0.12);
  font-size: 0.88rem;
  font-family: "Hiragino Sans", sans-serif;
}

.dropzone {
  position: relative;
  margin-top: 14px;
  padding: 26px 16px;
  border: 2px dashed #5a4a42;
  border-radius: 4px;
  text-align: center;
  background: linear-gradient(180deg, rgba(244, 234, 216, 0.08), rgba(20, 18, 16, 0.5));
  cursor: pointer;
  box-shadow: inset 0 0 0 1px rgba(244, 234, 216, 0.06);
}

.dropzone.is-drag {
  border-color: var(--mint);
  background: rgba(94, 224, 184, 0.08);
}

.dropzone input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.drop-label {
  margin: 0;
  font-weight: 800;
  font-family: "Hiragino Sans", sans-serif;
}

.drop-hint {
  margin: 6px 0 0;
  font-size: 0.85rem;
  color: var(--muted);
}

.scale-stage {
  display: grid;
  gap: 10px;
  margin-top: 8px;
}

.scale {
  display: flex;
  justify-content: center;
}

.scale-base {
  position: relative;
  width: min(100%, 280px);
  padding: 8px 12px 4px;
  background: linear-gradient(180deg, #2a2a32, #14141a);
  border-radius: 12px 12px 8px 8px;
  border: 2px solid #4a4a58;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

.scale-dial {
  position: relative;
  height: 88px;
  margin: 0 auto;
  width: 180px;
  background: radial-gradient(circle at 50% 85%, #f0e8d8 0%, #c8b8a0 42%, #6a6058 100%);
  border-radius: 90px 90px 12px 12px;
  border: 3px solid #3a3428;
  overflow: hidden;
}

.scale-needle {
  position: absolute;
  left: 50%;
  bottom: 18px;
  width: 4px;
  height: 58px;
  margin-left: -2px;
  background: linear-gradient(180deg, #2a1810, #c84838);
  transform-origin: 50% 92%;
  transform: rotate(var(--needle-deg, 0deg));
  transition: transform 0.45s cubic-bezier(0.34, 1.2, 0.48, 1);
  border-radius: 2px;
}

.scale-tag {
  position: absolute;
  top: 18px;
  margin: 0;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: #e8d8c0;
  font-family: ui-monospace, Menlo, monospace;
}

.scale-tag-heavy {
  left: 8px;
}

.scale-tag-light {
  right: 8px;
  color: var(--mint);
}

.stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.stat-card {
  padding: 8px 10px;
  background: var(--paper);
  color: #2a241c;
  border-radius: 4px;
  border: 1px solid var(--paper-edge);
  box-shadow: 0 3px 0 #8a7860;
}

.stat-label {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  color: #6a5a48;
  font-family: "Hiragino Sans", sans-serif;
}

.stat-card strong {
  font-size: 1.02rem;
  font-variant-numeric: tabular-nums;
  font-family: ui-monospace, Menlo, monospace;
}

.print-stage {
  position: relative;
  margin: 14px 0;
}

.print-chip {
  position: absolute;
  z-index: 2;
  top: -8px;
  padding: 3px 10px;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  background: var(--paper);
  color: #3a3028;
  border: 1px solid var(--paper-edge);
  font-family: ui-monospace, Menlo, monospace;
}

.before-chip {
  left: 12px;
}

.after-chip {
  right: 12px;
}

.compare {
  position: relative;
  border-radius: 4px;
  overflow: hidden;
  border: 6px solid var(--paper);
  box-shadow:
    0 1px 0 #fff8ee inset,
    0 12px 28px rgba(0, 0, 0, 0.55);
  aspect-ratio: 4 / 3;
  max-height: 50vh;
  background: #1a1814;
}

.checker {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(45deg, #2a2830 25%, transparent 25%),
    linear-gradient(-45deg, #2a2830 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #2a2830 75%),
    linear-gradient(-45deg, transparent 75%, #2a2830 75%);
  background-size: 20px 20px;
  background-position:
    0 0,
    0 10px,
    10px -10px,
    -10px 0;
  opacity: 0.55;
}

.compare img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
  z-index: 1;
}

.compare-before-wrap {
  position: absolute;
  inset: 0;
  width: 50%;
  overflow: hidden;
  border-right: 2px solid var(--safe);
  z-index: 2;
}

.compare-slider-label {
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 8px;
  z-index: 3;
}

.compare-slider-label input {
  width: 100%;
  accent-color: var(--safe);
}

.controls {
  margin: 14px 0;
  padding: 12px;
  border-radius: 6px;
  background: rgba(26, 31, 46, 0.92);
  border: 1px solid var(--line);
  display: grid;
  gap: 12px;
}

.controls label {
  display: grid;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 700;
  font-family: "Hiragino Sans", sans-serif;
}

.controls select,
.controls input[type="range"] {
  width: 100%;
  font: inherit;
  padding: 8px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: #12161f;
  color: var(--ink);
}

.controls input[type="range"] {
  padding: 0;
  accent-color: var(--mint);
}

.controls select:focus-visible,
.controls input:focus-visible,
.btn-save:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

.quality-label output {
  font-weight: 800;
  color: var(--mint);
  font-family: ui-monospace, Menlo, monospace;
}

.btn-save {
  width: 100%;
  padding: 14px 16px;
  font: inherit;
  font-size: 1rem;
  font-weight: 800;
  font-family: "Hiragino Sans", sans-serif;
  border: none;
  border-radius: 6px;
  background: linear-gradient(180deg, #f0e0c0, #c8a878);
  color: #2a1810;
  cursor: pointer;
  box-shadow: 0 4px 0 #6a5038;
}

.btn-save:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.inspector {
  display: flex;
  align-items: flex-end;
  justify-content: flex-end;
  gap: 8px;
  margin: 12px 0 0;
}

.inspector .burapi {
  width: 56px;
  height: auto;
  filter: drop-shadow(0 6px 8px rgba(0, 0, 0, 0.55));
}

.inspector figcaption {
  margin: 0;
  font-size: 0.75rem;
  color: var(--muted);
  font-family: "Hiragino Sans", sans-serif;
}

.processing {
  text-align: center;
  color: #e8a090;
  font-family: "Hiragino Sans", sans-serif;
}

html[data-capture="1"] .capture-hide {
  display: none !important;
}

html[data-capture="1"] .app {
  max-width: 390px;
  padding-bottom: 20px;
}

html[data-capture="1"] .compare {
  max-height: 44vh;
}

html[data-promo-shot="1"] .capture-hide#dropzone,
html[data-promo-shot="1"] .dropzone {
  display: none !important;
}

html[data-promo-shot="1"] .app {
  max-width: 390px;
}

@media (prefers-reduced-motion: reduce) {
  .scale-needle {
    transition: none !important;
  }

  * {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
  }
}