/* ─────────────────────────────────────────────────────────────
 * print-diff-checker — 校正室 (Editorial Proofreading Room) テーマ
 * カラー: 紙の生成り + 校正の朱 + 墨
 * フォント: Fraunces (Editorial serif) + Shippori Mincho + 游ゴシック + JetBrains Mono
 * generic な AI 風 UI を意図的に排除。skill from-cloudflare/frontend-design 準拠。
 * ─────────────────────────────────────────────────────────────*/

:root{
  --paper: #faf8f3;
  --paper-shadow: #f0ecdf;
  --ink: #1a1612;
  --ink-soft: #3a3530;
  --ink-muted: #6b5d4f;
  --rule: #1a1612;
  --vermilion: #c8102e;
  --vermilion-soft: #e85a72;
  --vermilion-bg: rgba(200, 16, 46, 0.04);
  --serif: 'Fraunces', 'BIZ UDPMincho', 'Shippori Mincho', 'Hiragino Mincho ProN', 'Yu Mincho', serif;
  --sans-jp: 'Hiragino Sans', 'Yu Gothic', 'Yu Gothic UI', system-ui, sans-serif;
  --mono: 'JetBrains Mono', 'SF Mono', Menlo, monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family: var(--sans-jp);
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
  background: var(--paper);
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
}

/* 紙のテクスチャ + ヴィネット */
body::before{
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(circle at 1px 1px, rgba(26,22,18,0.06) 1px, transparent 0);
  background-size: 3px 3px;
  opacity: 0.7;
  z-index: 0;
}
body::after{
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(26,22,18,0.04) 100%);
  z-index: 0;
}

.sheet{
  position: relative;
  z-index: 1;
  max-width: 1280px;
  margin: 0 auto;
  padding: 48px 56px 80px;
  min-height: 100vh;
}

/* ───────── 柱 / colophon ───────── */
.colophon{
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: baseline;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 16px;
  margin-bottom: 32px;
  gap: 24px;
}
.colophon-left, .colophon-right{
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.colophon-right{text-align: right}
.colophon-right .date{display: block; margin-bottom: 4px}
.colophon-right .pagenum{font-weight: 700; color: var(--ink)}
.colophon-title{
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 500;
  letter-spacing: 0.02em;
  font-variation-settings: 'opsz' 144;
  text-align: center;
  white-space: nowrap;
}
.colophon-title .ampersand{
  font-style: italic;
  color: var(--vermilion);
  font-weight: 300;
  margin: 0 6px;
}

.intro{
  font-family: var(--serif);
  font-size: 13px;
  font-style: italic;
  color: var(--ink-muted);
  margin-bottom: 28px;
  text-align: center;
  letter-spacing: 0.02em;
}
.intro::before, .intro::after{content: '— '; color: var(--vermilion)}
.intro::after{content: ' —'}

/* ───────── 3 カラム作業台 ───────── */
.workbench{
  display: grid;
  grid-template-columns: 1.1fr 1px 0.9fr 1px 0.9fr;
  gap: 24px;
  margin-bottom: 32px;
  position: relative;
}
.rule-vertical{
  background: var(--rule);
  width: 1px;
  align-self: stretch;
  position: relative;
}
.rule-vertical::before, .rule-vertical::after{
  content: '';
  position: absolute;
  left: -3px;
  width: 7px;
  height: 7px;
  border: 1px solid var(--rule);
  background: var(--paper);
  border-radius: 50%;
}
.rule-vertical::before{top: 16px}
.rule-vertical::after{bottom: 16px}

.col{display: flex; flex-direction: column; min-width: 0}
.col-marker{
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 10px;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.col-marker .glyph{
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--vermilion);
  font-variation-settings: 'opsz' 9;
  line-height: 1;
}
.col-marker .label{font-weight: 700; letter-spacing: 0.18em}
.col-marker .meta{margin-left: auto; font-size: 9px; letter-spacing: 0.08em}

/* ───────── A: dropzone ───────── */
.dropzone{
  border: 1px dashed var(--ink);
  background: var(--paper);
  padding: 16px;
  min-height: 140px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
  position: relative;
  transition: background 0.15s, border 0.15s;
  margin-bottom: 14px;
  text-align: center;
}
.dropzone:hover{background: var(--vermilion-bg)}
.dropzone.drag-over{background: var(--vermilion-bg); border-style: solid; border-color: var(--vermilion)}
.dropzone.has-image{padding: 8px; border-style: solid}
.dropzone-icon{
  font-family: var(--serif);
  font-size: 28px;
  font-style: italic;
  color: var(--ink-muted);
  font-variation-settings: 'opsz' 9;
}
.dropzone-text{
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--ink-muted);
  text-transform: uppercase;
}
.dropzone-text strong{color: var(--vermilion); font-weight: 700}
.dropzone-preview{
  display: none;
  width: 100%;
  max-height: 240px;
  object-fit: contain;
  background: #ece6d6;
}
.dropzone-filename{
  display: none;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-soft);
  letter-spacing: 0.08em;
  margin-top: 6px;
  word-break: break-all;
}
.dropzone.has-image .dropzone-icon,
.dropzone.has-image .dropzone-text{display: none}
.dropzone.has-image .dropzone-preview,
.dropzone.has-image .dropzone-filename{display: block}

.ocr-status{
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  margin-bottom: 10px;
  padding: 10px 12px;
  background: var(--vermilion-bg);
  border-left: 2px solid var(--vermilion);
  transition: background 0.3s, color 0.3s, border-color 0.3s;
}
.ocr-status-row{
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}
.ocr-phase{
  flex: 1;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.05em;
}
.cancel-btn{
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  font-weight: 700;
  transition: background 0.15s, color 0.15s;
}
.cancel-btn:hover{
  background: var(--ink);
  color: var(--paper);
}
.ocr-bar-track{
  height: 3px;
  background: rgba(26,22,18,0.08);
  margin-bottom: 6px;
  position: relative;
  overflow: hidden;
}
.ocr-bar{
  height: 100%;
  background: var(--vermilion);
  width: 0%;
  transition: width 0.2s linear;
}
.ocr-counter{
  font-size: 10px;
  color: var(--ink-muted);
}
.ocr-counter strong{
  font-family: var(--serif);
  font-style: italic;
  font-size: 13px;
  font-weight: 700;
  color: var(--vermilion);
  font-variation-settings: 'opsz' 9;
  margin: 0 1px;
}
.ocr-counter .warn{
  color: var(--vermilion);
  font-weight: 700;
  margin-left: 4px;
}
.ocr-stream-preview{
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.55;
  color: var(--ink-soft);
  background: var(--paper);
  border: 1px solid rgba(26,22,18,0.15);
  padding: 8px 10px;
  margin-top: 8px;
  max-height: 110px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}
.ocr-stream-preview::before{
  content: '▸ STREAM PREVIEW';
  display: block;
  font-size: 8.5px;
  letter-spacing: 0.18em;
  color: var(--ink-muted);
  margin-bottom: 4px;
}
.ocr-status.slow{
  background: rgba(200, 16, 46, 0.12);
  border-left-color: var(--vermilion);
  animation: warn-pulse 1.4s ease-in-out infinite;
}
.ocr-status.slow .ocr-phase{color: var(--vermilion)}
@keyframes warn-pulse{
  0%, 100%{background: rgba(200, 16, 46, 0.10)}
  50%{background: rgba(200, 16, 46, 0.20)}
}
.spinner{
  width: 11px;
  height: 11px;
  border: 1.5px solid var(--vermilion);
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  flex-shrink: 0;
}
@keyframes spin{to{transform: rotate(360deg)}}

.ocr-result{border-top: 1px solid var(--ink); padding-top: 12px}
.ocr-list{list-style: none; font-size: 12.5px; line-height: 1.9; color: var(--ink-soft)}
.ocr-list li{padding-left: 18px; position: relative}
.ocr-list li::before{
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border: 1px solid var(--ink);
}
.ocr-list li.extra::before{background: var(--vermilion); border-color: var(--vermilion)}
.ocr-list li.extra{color: var(--vermilion); font-weight: 700}
.ocr-list li.extra::after{
  content: ' ⊿';
  font-family: var(--mono);
  font-size: 10px;
  color: var(--vermilion);
  margin-left: 4px;
}
.ocr-list li.placeholder{
  color: var(--ink-muted);
  font-style: italic;
  font-family: var(--serif);
  font-size: 12px;
}
.ocr-list li.placeholder::before{display: none}

/* ───────── B: 期待リスト ───────── */
.expected-pane{display: flex; flex-direction: column; min-height: 100%}
.expected-textarea{
  flex: 1;
  font-family: var(--sans-jp);
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--ink);
  background: transparent;
  border: none;
  resize: none;
  padding: 0;
  outline: none;
  min-height: 320px;
  background-image: repeating-linear-gradient(
    transparent,
    transparent calc(1.9em - 1px),
    rgba(26,22,18,0.08) calc(1.9em - 1px),
    rgba(26,22,18,0.08) 1.9em
  );
  background-position: 0 0.4em;
}
.expected-textarea::placeholder{
  color: var(--ink-muted);
  font-family: var(--serif);
  font-style: italic;
  font-size: 12px;
}
.expected-controls{
  margin-top: 12px;
  display: flex;
  gap: 16px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  flex-wrap: wrap;
}
.expected-controls label{display: flex; align-items: center; gap: 4px; cursor: pointer}
.expected-controls input{accent-color: var(--vermilion)}

/* ───────── C: 差分パネル ───────── */
.diff-pane{display: flex; flex-direction: column}
.diff-section{margin-bottom: 18px}
.diff-section-title{
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: 6px;
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.diff-section-title .count{
  font-family: var(--serif);
  font-size: 14px;
  font-weight: 700;
  color: var(--vermilion);
  font-style: italic;
  font-variation-settings: 'opsz' 9;
}
.diff-section.missing .diff-section-title::before{content: '⊘'; color: var(--vermilion); font-weight: 700}
.diff-section.extra .diff-section-title::before{content: '⊕'; color: var(--vermilion); font-weight: 700}
.diff-section.matched .diff-section-title::before{content: '✓'; color: var(--ink-soft); font-weight: 700}

.diff-list{list-style: none; font-size: 12.5px; line-height: 1.85; color: var(--ink-soft)}
.diff-list li{padding: 2px 6px; position: relative}

.diff-list.missing-list li{color: var(--ink)}
.diff-list.missing-list li::before{
  content: '+ ';
  font-family: var(--mono);
  color: var(--vermilion);
  font-weight: 700;
}
.diff-list.extra-list li{
  display: inline-block;
  width: 100%;
  background-image: linear-gradient(to right, var(--vermilion), var(--vermilion));
  background-repeat: no-repeat;
  background-size: 0% 2px;
  background-position: 0 0.7em;
  animation: vermilion-strike 0.6s ease-out 0.2s forwards;
}
.diff-list.extra-list li::before{
  content: '×';
  font-family: var(--serif);
  color: var(--vermilion);
  font-weight: 700;
  font-style: italic;
  margin-right: 6px;
  font-size: 14px;
}
@keyframes vermilion-strike{
  0%{background-size: 0% 2px}
  100%{background-size: 100% 2px}
}
.diff-list.matched-list li{color: var(--ink-muted); font-size: 11px}
.diff-list.matched-list li::before{content: '·'; color: var(--ink-muted); margin-right: 6px}

.diff-empty{
  color: var(--ink-muted);
  font-family: var(--serif);
  font-style: italic;
  font-size: 12px;
  padding: 20px 0;
  text-align: center;
}

/* ───────── アクションバー ───────── */
.actions{
  display: flex;
  gap: 24px;
  align-items: center;
  border-top: 1px solid var(--rule);
  padding-top: 20px;
  margin-top: 8px;
}
.status-line{
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--ink-muted);
  letter-spacing: 0.06em;
}
.status-line strong{
  color: var(--ink);
  font-weight: 700;
  font-family: var(--serif);
  font-size: 13px;
  font-style: italic;
  font-variation-settings: 'opsz' 9;
}
.status-line .updated-at{font-family: var(--mono); font-size: 9.5px; color: var(--ink-muted)}
.status-dot{
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--vermilion);
  position: relative;
}
.status-dot::after{
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: var(--vermilion);
  opacity: 0.3;
  animation: pulse 2s ease-in-out infinite;
}
.status-dot.idle{background: var(--ink-muted)}
.status-dot.idle::after{background: var(--ink-muted)}
.status-dot.error{background: var(--vermilion)}
@keyframes pulse{
  0%, 100%{transform: scale(1); opacity: 0.3}
  50%{transform: scale(1.6); opacity: 0}
}

.btn{
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 12px 22px;
  border: 1px solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  transition: all 0.15s;
  font-weight: 700;
}
.btn:disabled{opacity: 0.4; cursor: not-allowed}
.btn-copy{background: var(--vermilion); color: var(--paper); border-color: var(--vermilion)}
.btn-copy:hover:not(:disabled){background: var(--ink); border-color: var(--ink)}

/* ───────── 校了スタンプ ───────── */
.kouryou-stamp{
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0) rotate(-25deg);
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 6px double var(--vermilion);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--serif);
  font-weight: 700;
  font-size: 56px;
  color: var(--vermilion);
  background: var(--paper);
  pointer-events: none;
  z-index: 100;
  opacity: 0;
  letter-spacing: 0.1em;
  box-shadow: 0 0 0 4px var(--paper), 0 8px 24px rgba(200,16,46,0.3);
}
.kouryou-stamp.show{animation: stamp-fall 1.4s ease-out forwards}
@keyframes stamp-fall{
  0%{transform: translate(-50%, -80%) scale(2.2) rotate(-25deg); opacity: 0}
  35%{transform: translate(-50%, -50%) scale(0.9) rotate(-12deg); opacity: 1}
  50%{transform: translate(-50%, -50%) scale(1.05) rotate(-15deg); opacity: 1}
  80%{transform: translate(-50%, -50%) scale(1) rotate(-15deg); opacity: 1}
  100%{transform: translate(-50%, -50%) scale(1) rotate(-15deg); opacity: 0}
}

/* ───────── footer ───────── */
.footer{
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: 40px;
  padding-top: 12px;
  border-top: 1px solid var(--rule);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink-muted);
}
.footer .ornament{
  font-family: var(--serif);
  font-style: italic;
  font-size: 11px;
  color: var(--vermilion);
  text-transform: none;
  letter-spacing: 0.02em;
}

/* ───────── レスポンシブ ───────── */
@media (max-width: 1000px){
  .workbench{grid-template-columns: 1fr; gap: 24px}
  .rule-vertical{display: none}
  .sheet{padding: 32px 24px 64px}
}