:root {
  --bg: #eef2f7;
  --surface: #ffffff;
  --border: #cfd8e6;
  --text: #1e293b;
  --muted: #64748b;
  --accent: #ea580c;
  --accent-dim: #c2410c;
  --win: #059669;
  --danger: #dc2626;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: "Zen Kaku Gothic New", sans-serif;
  background: var(--bg);
  color: var(--text);
  background-image:
    radial-gradient(ellipse 90% 55% at 50% -15%, rgba(251, 191, 36, 0.18), transparent),
    radial-gradient(ellipse 70% 45% at 100% 100%, rgba(56, 189, 248, 0.1), transparent);
}

.wrap {
  max-width: 960px;
  margin: 0 auto;
  padding-top: max(1.25rem, env(safe-area-inset-top));
  padding-right: max(1rem, env(safe-area-inset-right));
  padding-bottom: calc(2rem + env(safe-area-inset-bottom));
  padding-left: max(1rem, env(safe-area-inset-left));
}

header {
  text-align: center;
  margin-bottom: 1.5rem;
}

.site-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75rem 1rem;
  text-align: center;
}

.site-header h1 {
  margin: 0;
  width: 100%;
  font-size: clamp(1.35rem, 4vw, 1.85rem);
  font-weight: 900;
  letter-spacing: 0.02em;
}

.btn-toggle-test {
  font-family: inherit;
  cursor: pointer;
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--muted);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  transition: background 0.15s, color 0.15s;
}

.btn-toggle-test:hover {
  background: #f1f5f9;
  color: var(--text);
}

header p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.layout {
  display: grid;
  gap: 1.5rem;
  align-items: start;
}

@media (min-width: 720px) {
  .layout {
    grid-template-columns: 1fr 320px;
  }
}

.wheel-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  box-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.wheel-wrap {
  position: relative;
  width: min(100%, 380px);
  aspect-ratio: 1;
  margin: 0 auto 1rem;
}

#wheel {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 50%;
  box-shadow:
    0 0 0 4px var(--border),
    0 14px 36px rgba(15, 23, 42, 0.1);
}

.pointer {
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 14px solid transparent;
  border-right: 14px solid transparent;
  border-top: 22px solid var(--accent);
  filter: drop-shadow(0 2px 3px rgba(15, 23, 42, 0.2));
  z-index: 2;
}

.hub {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 18%;
  height: 18%;
  border-radius: 50%;
  background: linear-gradient(145deg, #f8fafc, #e2e8f0);
  border: 3px solid var(--border);
  box-shadow: inset 0 1px 4px rgba(255, 255, 255, 0.9), inset 0 -2px 6px rgba(15, 23, 42, 0.06);
  z-index: 1;
  pointer-events: none;
}

.result {
  min-height: 3rem;
  text-align: center;
  font-size: 1.1rem;
  font-weight: 700;
}

.result.empty {
  color: var(--muted);
  font-weight: 400;
}

.result.winner {
  color: var(--win);
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  box-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
  padding: 1.25rem;
}

.panel h2 {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.preset-block {
  margin-bottom: 1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.preset-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.04em;
  margin-bottom: 0.35rem;
}

.preset-row {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
  margin-bottom: 0.5rem;
}

.preset-row:last-child {
  margin-bottom: 0;
}

.preset-row select {
  flex: 1;
  padding: 0.6rem 0.5rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  /* iOS でフォーカス時のズームを防ぐため 16px 以上を維持 */
  font-size: 1rem;
}

.preset-row input {
  flex: 1;
  padding: 0.6rem 0.65rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  /* iOS でフォーカス時のズームを防ぐため 16px 以上を維持 */
  font-size: 1rem;
}

.btn-secondary {
  padding: 0.55rem 0.75rem;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
}

.btn-secondary:hover:not(:disabled) {
  background: #f1f5f9;
}

.btn-secondary.danger {
  color: var(--danger);
  border-color: rgba(220, 38, 38, 0.35);
}

.btn-secondary.danger:hover:not(:disabled) {
  background: rgba(220, 38, 38, 0.06);
}

.color-field {
  margin-bottom: 1rem;
}

.color-field-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.04em;
  margin-bottom: 0.4rem;
}

.tpl-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}

.tpl-btn {
  width: 1.75rem;
  height: 1.75rem;
  border-radius: 50%;
  border: 2px solid transparent;
  padding: 0;
  cursor: pointer;
  box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.12);
  transition: transform 0.08s ease, box-shadow 0.15s;
}

.tpl-btn:hover {
  transform: scale(1.08);
}

.tpl-btn[aria-pressed="true"] {
  border-color: var(--text);
  box-shadow: 0 0 0 2px var(--surface), 0 0 0 4px var(--accent);
}

.tpl-btn:disabled {
  opacity: 0.38;
  cursor: not-allowed;
  filter: grayscale(0.35);
  transform: none;
  box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.12);
}

.tpl-btn:disabled:hover {
  transform: none;
}

.tpl-btn:disabled[aria-pressed="true"] {
  border-color: transparent;
  box-shadow: inset 0 0 0 1px rgba(15, 23, 42, 0.12);
}

.add-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.add-row input {
  flex: 1;
  padding: 0.65rem 0.75rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
}

.add-row input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(234, 88, 12, 0.15);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  border-radius: 0.5rem;
  font-weight: 700;
  transition: transform 0.08s ease, filter 0.15s;
  /* タップ時のグレーフラッシュ抑制とダブルタップズーム回避 */
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

button:active:not(:disabled) {
  transform: scale(0.97);
}

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

.btn-add {
  padding: 0.65rem 1rem;
  background: #e2e8f0;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-add:hover:not(:disabled) {
  filter: brightness(1.15);
}

.btn-spin {
  width: 100%;
  padding: 1rem 1.25rem;
  font-size: 1.15rem;
  background: linear-gradient(180deg, #fb923c, var(--accent));
  color: #fffaf5;
  box-shadow: 0 4px 0 var(--accent-dim);
  margin-bottom: 0.75rem;
}

.btn-spin:hover:not(:disabled) {
  filter: brightness(1.05);
}

.btn-clear {
  width: 100%;
  padding: 0.55rem;
  background: transparent;
  color: var(--danger);
  border: 1px solid rgba(220, 38, 38, 0.35);
  font-size: 0.85rem;
  font-weight: 600;
}

.btn-clear:hover:not(:disabled) {
  background: rgba(220, 38, 38, 0.06);
}

ul.names {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 220px;
  overflow-y: auto;
}

ul.names li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.5rem 0.65rem;
  border-radius: 0.4rem;
  margin-bottom: 0.35rem;
  background: #f8fafc;
  border: 1px solid var(--border);
  font-size: 0.95rem;
}

.li-main {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-width: 0;
  flex: 1;
}

.li-swatch {
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 50%;
  border: 1px solid rgba(15, 23, 42, 0.15);
  cursor: pointer;
  padding: 0;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.35);
}

.li-swatch:hover {
  transform: scale(1.1);
}

.li-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

ul.names li button {
  padding: 0.45rem 0.7rem;
  min-height: 32px;
  font-size: 0.78rem;
  background: rgba(220, 38, 38, 0.1);
  color: var(--danger);
  border-radius: 0.35rem;
}

.hint {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.5;
}

.history-section {
  margin-top: 2rem;
  padding: 1.25rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  box-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
}

.history-heading {
  margin: 0 0 1rem;
  font-size: 1rem;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.history-mount {
  font-size: 0.95rem;
}

.history-empty {
  margin: 0;
  padding: 0.75rem 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.history-date-block {
  margin-bottom: 1.25rem;
}

.history-date-block:last-child {
  margin-bottom: 0;
}

.history-subheading {
  margin: 0 0 0.5rem;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
}

.history-day-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.history-day-list li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}

.history-day-main {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.75rem;
  min-width: 0;
  flex: 1;
}

.history-delete-btn {
  flex-shrink: 0;
  padding: 0.4rem 0.7rem;
  min-height: 32px;
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  border-radius: 0.35rem;
  border: 1px solid rgba(220, 38, 38, 0.35);
  background: rgba(220, 38, 38, 0.08);
  color: var(--danger);
}

.history-delete-btn:hover {
  background: rgba(220, 38, 38, 0.14);
}

.history-delete-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.history-day-list li:last-child {
  border-bottom: none;
}

.history-time {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--muted);
}

.counts-section {
  margin-top: 1.25rem;
  padding: 1.25rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  box-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
}

.counts-mount {
  font-size: 0.95rem;
}

.ranking-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.ranking-item {
  display: grid;
  grid-template-columns: 3.25rem 1fr auto;
  align-items: center;
  gap: 0.65rem 0.75rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--border);
}

.ranking-item:last-child {
  border-bottom: none;
}

.ranking-rank {
  font-size: 0.9rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  text-align: center;
  min-width: 3rem;
}

.ranking-item--top1 .ranking-rank {
  color: #b45309;
}

.ranking-item--top2 .ranking-rank {
  color: #64748b;
}

.ranking-item--top3 .ranking-rank {
  color: #a16207;
}

.ranking-name {
  font-weight: 600;
  color: var(--text);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.ranking-count {
  font-size: 0.9rem;
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  color: var(--muted);
  white-space: nowrap;
}

.sim-section {
  margin-top: 1.25rem;
  padding: 1.25rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 1rem;
  box-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
}

.sim-section.is-hidden {
  display: none;
}

.sim-desc {
  margin: 0 0 0.75rem;
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.5;
}

.sim-desc code {
  font-size: 0.8em;
  padding: 0.1em 0.35em;
  background: var(--bg);
  border-radius: 0.25rem;
  border: 1px solid var(--border);
}

#sim100Btn {
  margin-bottom: 0.75rem;
}

.sim-output {
  margin: 0;
  padding: 0.75rem 1rem;
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.85rem;
  line-height: 1.55;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--text);
  min-height: 2.5rem;
}

/* キーボード操作時のフォーカス可視化（マウス/タップ時には出ない） */
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ===== スマホ（〜480px）向けの細かい調整 ===== */
@media (max-width: 480px) {
  .wrap {
    padding-right: max(0.75rem, env(safe-area-inset-right));
    padding-left: max(0.75rem, env(safe-area-inset-left));
  }

  .wheel-card,
  .panel {
    padding: 1rem;
  }

  .history-section,
  .counts-section,
  .sim-section {
    padding: 1rem 0.85rem;
  }

  .wheel-wrap {
    width: min(100%, 340px);
  }

  /* 色テンプレ（指で押しやすいよう少し大きく） */
  .tpl-btn {
    width: 2rem;
    height: 2rem;
  }

  /* 「テスト用を表示」はスマホでは控えめに */
  .btn-toggle-test {
    padding: 0.4rem 0.7rem;
    font-size: 0.78rem;
  }

  .hint {
    font-size: 0.78rem;
  }
}