:root {
  /* デジタル庁デザインシステム(DADS)トークンへ写像。
     実値は ./dads-tokens.css（公式 @digital-go-jp/design-tokens, MIT）。
     var() の第2引数は読み込み失敗時のフォールバック（従来値）。 */
  --primary:       var(--color-key-800, #0031d8);              /* 主要操作（プライマリボタン） */
  --primary-hover: var(--color-key-900, #0017c1);              /* hover/押下 */
  --danger:        var(--color-semantic-error-1, #ec0000);     /* エラー */
  --warning:       var(--color-semantic-warning-orange-1, #fb5b01);
  --success:       var(--color-semantic-success-1, #259d63);   /* 成功/OK */
  --bg:            var(--color-neutral-solid-gray-50, #f4f6f9);
  --card:          var(--color-neutral-white, #ffffff);
  --ink:           var(--color-neutral-solid-gray-900, #1c2430);  /* 本文文字色 */
  --muted:         var(--color-neutral-solid-gray-700, #4d4d4d);  /* 補助テキスト（AA 4.5:1確保） */
  --line:          var(--color-neutral-solid-gray-200, #dde3ea);  /* 区切り/装飾境界 */
  --field-border:  var(--color-neutral-solid-gray-700, #4d4d4d);  /* フォーム境界（非テキスト 3:1以上） */
  --focus:         var(--color-key-800, #0031d8);                 /* フォーカスリング */
  --font-family-sans: 'Noto Sans JP', 'Hiragino Sans', 'Yu Gothic UI', 'Meiryo', system-ui, sans-serif;
  --font-family-mono: 'Noto Sans Mono', 'Consolas', 'Courier New', monospace;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scrollbar-gutter: stable;
}

body {
  margin: 0;
  font-family: var(--font-family-sans);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.5;
}

button,
input,
select,
textarea {
  font: inherit;
}

.app {
  min-height: 100vh;
  padding: 28px;
}

.workspace {
  max-width: 1180px;
  margin: 0 auto;
}

.topbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--line, #dde3ea);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--muted, #4d4d4d);
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 17px;
}

.api {
  min-width: 320px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted, #4d4d4d);
  font-size: 13px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--field-border, #4d4d4d);
  border-radius: 6px;
  padding: 10px 12px;
  background: var(--card, #ffffff);
  color: var(--ink, #1c2430);
}

.grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.panel {
  display: grid;
  gap: 14px;
  align-content: start;
  padding: 18px;
  border: 1px solid var(--line, #dde3ea);
  border-radius: 8px;
  background: var(--card, #ffffff);
  box-shadow: var(--elevation-1, 0 2px 8px rgb(0 0 0 / 8%));
}

.span {
  grid-column: 1 / -1;
}

.panel-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.toolbar {
  display: flex;
  align-items: end;
  justify-content: flex-end;
  gap: 10px;
}

.toolbar.left {
  justify-content: flex-start;
}

.compact {
  min-width: 240px;
}

button {
  min-height: 44px;
  border: 1px solid var(--field-border, #4d4d4d);
  border-radius: 6px;
  padding: 0 16px;
  background: var(--primary, #0031d8);
  color: var(--card, #ffffff);
  font-weight: 700;
  cursor: pointer;
  touch-action: manipulation;
}

button:hover:not(:disabled) {
  background: var(--primary-hover, #0017c1);
  border-color: var(--primary-hover, #0017c1);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* フォーカスリング — WCAG 2.4.7 準拠（フォーカス消去禁止） */
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--focus, #0031d8);
  outline-offset: 2px;
}

output {
  min-height: 24px;
  color: var(--ink, #1c2430);
  font-size: 14px;
  overflow-wrap: anywhere;
}

.candidates {
  display: grid;
  gap: 10px;
}

.candidate {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px;
  border: 1px solid var(--line, #dde3ea);
  border-left: 6px solid var(--candidate-color, var(--primary, #0031d8));
  border-radius: 6px;
  cursor: pointer;
}

.candidate input {
  width: auto;
  min-height: auto;
}

.candidate strong {
  display: block;
  color: var(--ink, #1c2430);
}

.candidate span {
  color: var(--muted, #4d4d4d);
  font-size: 13px;
}

.board {
  display: grid;
  gap: 8px;
}

.record {
  display: grid;
  grid-template-columns: 170px 1fr;
  gap: 8px;
  padding: 10px;
  border: 1px solid var(--line, #dde3ea);
  border-radius: 6px;
  background: var(--bg, #f4f6f9);
  font-size: 13px;
}

.table {
  display: grid;
  gap: 6px;
}

.row {
  display: grid;
  grid-template-columns: 48px 100px 1fr 96px;
  gap: 8px;
  padding: 8px;
  border: 1px solid var(--line, #dde3ea);
  border-radius: 6px;
  background: var(--bg, #f4f6f9);
  color: var(--ink, #1c2430);
  font-size: 12px;
  overflow-wrap: anywhere;
}

pre {
  min-height: 120px;
  margin: 0;
  overflow: auto;
  padding: 12px;
  border-radius: 6px;
  background: var(--color-neutral-solid-gray-900, #1c2430);
  color: var(--color-neutral-white, #ffffff);
  font-family: var(--font-family-mono);
  font-size: 12px;
  white-space: pre-wrap;
  word-break: break-all;
}

#receiptResult {
  min-height: 120px;
  background: var(--bg, #f4f6f9);
  color: var(--ink, #1c2430);
}

.status {
  display: grid;
  gap: 8px;
  padding: 12px;
  border-radius: 6px;
  border: 1px solid var(--line, #dde3ea);
  background: var(--card, #ffffff);
  overflow-wrap: anywhere;
}

.status strong {
  font-size: 14px;
}

.status span,
.status small {
  font-family: var(--font-family-mono);
  font-size: 12px;
}

.status.ok {
  border-color: var(--success, #259d63);
  background: var(--color-primitive-green-50, #eef7ea);
}

.status.warning {
  border-color: var(--warning, #fb5b01);
  background: var(--color-primitive-yellow-50, #fff8df);
}

.status.danger {
  border-color: var(--danger, #ec0000);
  background: var(--color-primitive-red-50, #fff0f0);
}

.tally {
  display: grid;
  gap: 14px;
  min-height: 120px;
}

.tally-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--ink, #1c2430);
}

.tally-summary span {
  color: var(--muted, #4d4d4d);
  font-family: var(--font-family-mono);
  font-size: 12px;
}

.tally-bars {
  display: grid;
  gap: 10px;
}

.tally-row {
  display: grid;
  grid-template-columns: minmax(160px, 220px) 1fr 54px;
  align-items: center;
  gap: 12px;
}

.tally-label {
  display: grid;
  gap: 2px;
}

.tally-label strong {
  color: var(--ink, #1c2430);
  font-size: 14px;
}

.tally-label span {
  color: var(--muted, #4d4d4d);
  font-family: var(--font-family-mono);
  font-size: 12px;
}

.bar-track {
  height: 16px;
  overflow: hidden;
  border-radius: 999px;
  background: var(--line, #dde3ea);
}

.bar-fill {
  height: 100%;
  min-width: 2px;
  border-radius: 999px;
  background: var(--candidate-color, var(--primary, #0031d8));
}

.vote-count {
  text-align: right;
  color: var(--ink, #1c2430);
}

.hint {
  margin: 0;
  color: var(--muted, #4d4d4d);
  font-size: 12px;
}

@media (max-width: 760px) {
  .app {
    padding: 16px;
  }

  .topbar,
  .grid {
    grid-template-columns: 1fr;
    display: grid;
  }

  .api {
    min-width: 0;
  }

  .toolbar {
    align-items: stretch;
    display: grid;
    justify-content: stretch;
  }

  .compact {
    min-width: 0;
  }

  .record,
  .row,
  .tally-row {
    grid-template-columns: 1fr;
  }

  .vote-count {
    text-align: left;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}