/* ================================================
   Kikiwake v6 — Firebase 版スタイル（v5 ベース + 同意画面・撤回ボタン）
   style.css の後に読み込む
   ================================================ */

/* ── CSS 変数（Ink & Archive 共通パレット） ── */
:root {
  --washi:       #f5f0e4;
  --washi-dark:  #e2dbc8;
  --cream:       #fdfbf5;
  --ink:         #1a140e;
  --ink-mid:     #3a3028;
  --ink-soft:    #5c5044;
  --vermilion:   #be3a1e;
  --vermilion-l: #d94e30;
  --indigo:      #1e3560;
  --display:     'Zen Old Mincho', 'YuMincho', '游明朝', serif;
  --body-ja:     'Noto Sans JP', 'Hiragino Sans', sans-serif;
}

/* ── ウェルカム画面（Ink & Archive） ── */
#screen-welcome {
  position: relative;
  overflow: hidden;
  background: var(--washi);
  background-image: repeating-linear-gradient(
    180deg,
    transparent,
    transparent 3px,
    rgba(26,20,14,.006) 3px,
    rgba(26,20,14,.006) 4px
  );
  flex-direction: column;
  align-items: center;
  padding: 52px 32px 44px;
  min-height: 100%;
  box-sizing: border-box;
  font-family: var(--body-ja);
}
#screen-welcome.active {
  display: flex;
}

/* 背景の巨大な「聴」文字 */
.welcome-bg-char {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -52%);
  font-family: var(--display);
  font-size: clamp(180px, 55vw, 420px);
  font-weight: 900;
  color: rgba(26,20,14,.042);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  letter-spacing: -0.04em;
}

/* ── Motor 進捗ドット ── */
.motor-header {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 16px;
}
.motor-dots {
  display: grid;
  grid-template-columns: repeat(10, 14px);
  gap: 6px;
  justify-content: center;
  margin: 0 auto 8px;
}
.motor-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: transparent;
  border: 1.5px solid rgba(26,20,14,.25);
  transition: background .25s, border-color .25s, transform .2s;
  box-sizing: border-box;
}
.motor-dot--done {
  background: var(--vermilion, #be3a1e);
  border-color: var(--vermilion, #be3a1e);
  transform: scale(1.15);
}
.motor-counter-text {
  font-size: .95em;
  color: var(--ink-soft, #5c5044);
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}

/* ── Motor intro バッジ ── */
.motor-intro-badges {
  display: flex;
  gap: 8px;
  margin: 6px 0 18px;
}
.motor-badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: .8em;
  font-weight: 700;
  letter-spacing: .04em;
}
.motor-badge--once {
  background: rgba(190,58,30,.12);
  color: var(--vermilion, #be3a1e);
}
.motor-badge--time {
  background: rgba(26,20,14,.07);
  color: var(--ink-mid, #3a3028);
}

/* スマホ警告バナー */
.mobile-warning {
  background: #fff8e1;
  border: 1.5px solid #f59e0b;
  border-radius: 6px;
  padding: 10px 16px;
  font-size: .85em;
  color: #78350f;
  text-align: center;
  margin-bottom: 16px;
  line-height: 1.6;
}

.welcome-device-note {
  font-size: 0.72em;
  color: var(--ink-soft);
  text-align: center;
  margin-top: 24px;
  letter-spacing: .04em;
}

/* タイトルエリア */
.welcome-header {
  position: relative;
  text-align: center;
  margin-bottom: 40px;
}

.welcome-eyebrow {
  font-family: var(--display);
  font-size: 1em;
  font-weight: 400;
  color: var(--ink-soft);
  letter-spacing: .36em;
  margin: 0 0 8px;
}

.welcome-title {
  font-family: var(--display);
  font-size: clamp(1.7em, 7vw, 2.6em);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: .12em;
  line-height: 1.2;
  margin: 0 0 28px;
}

/* 音波アニメーション（home と同じ wave keyframe を再定義） */
.welcome-soundwave {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  height: 28px;
}

.welcome-soundwave .soundwave-bar {
  width: 3px;
  border-radius: 2px;
  background: var(--vermilion);
  opacity: .55;
  animation: wv6Wave 1.4s ease-in-out infinite;
  transform-origin: bottom;
}

@keyframes wv6Wave {
  0%, 100% { transform: scaleY(1); }
  50%       { transform: scaleY(2.2); }
}

/* ── キャッチコピーチップ ── */
.welcome-chips {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin: 14px 0 4px;
}
.welcome-chip {
  background: rgba(200,96,60,.10);
  color: #a03828;
  border: 1px solid rgba(200,96,60,.25);
  border-radius: 999px;
  padding: 4px 14px;
  font-size: 0.82em;
  font-weight: 600;
  font-family: var(--body-ja);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

/* ── ボタン群 ── */
#screen-welcome .btn-welcome-primary {
  background: #2a5c40;
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 22px 48px;
  font-family: var(--display);
  font-size: 1.2em;
  font-weight: 700;
  letter-spacing: .08em;
  cursor: pointer;
  transition: background .15s, transform .1s, box-shadow .1s;
  box-shadow: 0 4px 14px rgba(42,92,64,.35);
}
#screen-welcome .btn-welcome-primary:hover {
  background: #346e4e;
  box-shadow: 0 6px 18px rgba(42,92,64,.45);
}
#screen-welcome .btn-welcome-primary:active {
  transform: scale(0.95);
  background: #1e4430;
  box-shadow: 0 2px 6px rgba(42,92,64,.3);
}

#screen-welcome .btn-welcome-indigo {
  background: #1e3560;
  color: #fff;
  border: none;
  border-radius: 8px;
  padding: 22px 48px;
  font-family: var(--display);
  font-size: 1.2em;
  font-weight: 700;
  letter-spacing: .08em;
  cursor: pointer;
  transition: background .15s, transform .1s, box-shadow .1s;
  box-shadow: 0 4px 14px rgba(30,53,96,.35);
}
#screen-welcome .btn-welcome-indigo:hover {
  background: #254478;
  box-shadow: 0 6px 18px rgba(30,53,96,.45);
}
#screen-welcome .btn-welcome-indigo:active {
  transform: scale(0.95);
  background: #162848;
  box-shadow: 0 2px 6px rgba(30,53,96,.3);
}

/* 続きから・最初から は旧来のクリーム枠線スタイルを維持 */
#btn-resume-continue {
  background: var(--cream) !important;
  color: var(--ink) !important;
  border: 2px solid var(--ink) !important;
  outline: 1px solid var(--ink) !important;
  outline-offset: -6px;
  border-radius: 2px !important;
  box-shadow: 2px 3px 0 var(--ink-mid) !important;
  padding: 22px 10px !important;
  text-align: center !important;
}
#btn-resume-continue:hover {
  background: #fff !important;
  transform: translate(-1px, -2px);
  box-shadow: 3px 5px 0 var(--ink-mid) !important;
}
#btn-resume-continue:active {
  transform: scale(0.96) !important;
  background: var(--cream) !important;
  box-shadow: 1px 2px 0 var(--ink-mid) !important;
}
#btn-start-fresh {
  background: var(--cream) !important;
  color: var(--vermilion) !important;
  border: 2px solid var(--vermilion) !important;
  outline: 1px solid var(--vermilion) !important;
  outline-offset: -6px;
  border-radius: 2px !important;
  box-shadow: 2px 3px 0 var(--vermilion) !important;
  white-space: nowrap !important;
  text-align: center !important;
  padding: 22px 10px !important;
  letter-spacing: 0 !important;
}
#btn-start-fresh:hover {
  background: #fff !important;
  transform: translate(-1px, -2px);
  box-shadow: 3px 5px 0 var(--vermilion) !important;
}
#btn-start-fresh:active {
  transform: scale(0.96) !important;
  background: var(--cream) !important;
  box-shadow: 1px 2px 0 var(--vermilion) !important;
}

#screen-welcome .btn-welcome-ghost {
  background: transparent;
  color: var(--ink-mid);
  border: 1.5px solid var(--washi-dark);
  border-radius: 2px;
  padding: 12px 28px;
  font-family: var(--body-ja);
  font-size: 0.9em;
  letter-spacing: .04em;
  cursor: pointer;
  transition: border-color .2s, background .2s;
}
#screen-welcome .btn-welcome-ghost:hover {
  border-color: var(--ink-soft);
  background: rgba(26,20,14,.04);
}
#screen-welcome .btn-welcome-ghost:active {
  transform: scale(0.96);
  background: rgba(26,20,14,.08);
}

#screen-welcome .btn-welcome-text {
  display: block;
  background: transparent;
  border: none;
  color: var(--ink-soft);
  font-size: 0.8em;
  cursor: pointer;
  text-decoration: underline;
  padding: 6px 0;
  margin: 4px auto 0;
  font-family: var(--body-ja);
}

.welcome-btn-row {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 12px;
  width: 100%;
  margin-top: 12px;
  overflow: visible;
}

.welcome-btn-row > button {
  min-width: 0;
  width: 100%;
  padding-left: 10px;
  padding-right: 10px;
  white-space: normal;
  word-break: break-all;
  height: auto;
  line-height: 1.4;
  text-align: center;
}

/* ── ログイン中バナー ── */
.welcome-signedin-banner {
  width: 100%;
  max-width: 380px;
  background: rgba(30,53,96,.08);
  border: 1.5px solid rgba(30,53,96,.25);
  border-radius: 2px;
  padding: 18px 24px 14px;
  margin-bottom: 20px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.signedin-badge {
  font-size: 0.68em;
  font-weight: 700;
  letter-spacing: .14em;
  color: var(--indigo);
  text-transform: uppercase;
  margin: 0;
}

.signedin-account {
  font-family: var(--display);
  font-size: 1.15em;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: .04em;
  margin: 2px 0 6px;
  word-break: break-all;
}

.btn-switch-account {
  background: none;
  border: none;
  color: var(--ink-soft);
  font-size: 0.75em;
  cursor: pointer;
  padding: 4px 0;
  text-decoration: underline;
  text-underline-offset: 2px;
  font-family: var(--body-ja);
}
.btn-switch-account:hover { color: var(--ink); }

/* ── モード選択 ── */
.welcome-mode-select {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
  margin-bottom: 8px;
}

.welcome-mode-note {
  font-size: 0.72em;
  color: var(--ink-soft);
  margin: 0;
  width: 100%;
  text-align: right;
}

/* SHIKIBU 告知バナー */
.shikibu-notice-banner {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(190, 58, 30, 0.07);
  border: 1px solid rgba(190, 58, 30, 0.22);
  border-radius: 20px;
  padding: 5px 13px 5px 6px;
  font-family: var(--body-ja);
  font-size: 0.73em;
  color: #5c3020;
  margin-top: 6px;
  animation: shikibu-pop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
.shikibu-badge {
  background: #be3a1e;
  color: #fff;
  border-radius: 12px;
  padding: 2px 8px;
  font-weight: 700;
  font-size: 1.05em;
  letter-spacing: 0.02em;
  line-height: 1.4;
  white-space: nowrap;
}
@keyframes shikibu-pop {
  from { opacity: 0; transform: scale(0.85) translateY(4px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.welcome-mode-card {
  background: var(--cream);
  border: 1.5px solid var(--washi-dark);
  border-radius: 16px;
  padding: 26px 28px;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.15s;
  display: flex;
  flex-direction: column;
  gap: 4px;
  width: 100%;
}

.welcome-mode-card:hover {
  border-color: var(--ink-soft);
  box-shadow: 0 4px 18px rgba(0,0,0,0.10);
  background: #fff;
}

.wmc-title {
  font-family: var(--display);
  font-size: 1.6em;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0.06em;
}

.wmc-desc {
  font-size: 0.88em;
  color: var(--ink-soft);
  margin-top: 2px;
}

.wmc-note {
  font-size: 0.78em;
  color: var(--vermilion);
  margin-top: 6px;
}

.welcome-sub-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 400px;
}

.resume-login-note {
  font-size: 0.85em;
  color: var(--ink-mid);
  margin: 0 0 14px;
  text-align: center;
}

.analyze-login-note {
  font-size: 0.88em;
  color: var(--ink-mid);
  margin: 0 0 16px;
  text-align: center;
}

.btn-welcome-back {
  background: none;
  border: none;
  color: var(--ink-soft);
  font-size: 0.8em;
  cursor: pointer;
  padding: 12px 20px;
  margin-top: 20px;
  align-self: center;
  font-family: var(--body-ja);
}

.btn-welcome-back:hover { color: var(--ink); }
.btn-welcome-back:active { transform: scale(0.96); }

/* 測定セクション（背景なし） */
.analyze-coming-note {
  font-size: 1em;
  color: var(--indigo);
  background: rgba(30,53,96,.08);
  border: 1px solid rgba(30,53,96,.18);
  border-radius: 8px;
  padding: 10px 14px;
  margin: 10px 0 4px;
  line-height: 1.65;
  text-align: center;
  width: 100%;
  box-sizing: border-box;
}

.env-note {
  background: rgba(60,130,80,.07);
  border: 1px solid rgba(60,130,80,.2);
  border-radius: 8px;
  padding: 8px 10px 8px;
  margin: 0;
  text-align: left;
  width: 100%;
  box-sizing: border-box;
}
.env-item {
  font-size: 0.82em;
  color: var(--ink-mid);
  line-height: 1.9;
  font-family: var(--body-ja);
}
.env-item-cta {
  font-size: 0.82em;
  font-weight: 700;
  color: var(--ink-mid);
  margin: 2px 0 6px;
  font-family: var(--body-ja);
}
.env-sub {
  font-size: 0.7em;
  color: var(--ink-soft);
  opacity: 0.7;
  line-height: 1.5;
  font-family: var(--body-ja);
}

.welcome-measure-section {
  text-align: center;
  width: 100%;
  max-width: 440px;
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

/* 再訪者バナー（続きから→ログイン など） */
.welcome-resume-banner {
  background: rgba(30,53,96,.07);
  border: 1px solid rgba(30,53,96,.18);
  border-radius: 2px;
  padding: 20px 28px;
  margin-bottom: 28px;
  text-align: center;
  max-width: 440px;
  width: 100%;
  position: relative;
}

.resume-pct-text {
  font-family: var(--body-ja);
  font-size: 0.92em;
  color: var(--indigo);
  margin: 0 0 16px;
}

/* 初回 CTA */
#fresh-section {
  text-align: center;
  margin-bottom: 36px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  width: 100%;
  max-width: 360px;
}

/* ログインセクション */
.welcome-login-section {
  width: 100%;
  max-width: 360px;
  margin-top: 0;
}

.welcome-login-card {
  background: rgba(30,53,96,.05);
  border: 1px solid rgba(30,53,96,.18);
  border-radius: 4px;
  padding: 24px 24px 20px;
  margin-top: 8px;
  animation: fadeSlideIn .25s ease-out;
}

@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.welcome-back-heading {
  font-family: var(--display);
  font-size: 1.15em;
  font-weight: 700;
  color: var(--indigo);
  text-align: center;
  margin: 0 0 4px;
  letter-spacing: .06em;
}

.welcome-back-sub {
  font-size: 0.82em;
  color: var(--ink-soft);
  text-align: center;
  margin: 0 0 20px;
}

.resume-anon-section {
  margin-top: 12px;
  padding: 14px 16px;
  background: var(--washi);
  border-radius: 10px;
  text-align: center;
  width: 100%;
}
.resume-anon-text {
  font-size: 0.78em;
  color: var(--ink-soft);
  margin: 4px 0 6px;
  line-height: 1.5;
}

.welcome-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  margin: 28px 0 8px;
}
.welcome-divider::before,
.welcome-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--washi-dark);
}
.welcome-divider span {
  font-size: 0.76em;
  color: var(--ink-soft);
  white-space: nowrap;
  letter-spacing: .04em;
}

.btn-google-welcome {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  background: #fff;
  color: var(--ink-mid);
  border: 1px solid var(--washi-dark);
  border-radius: 2px;
  padding: 11px 20px;
  font-family: var(--body-ja);
  font-size: 0.9em;
  cursor: pointer;
  transition: background .2s, border-color .2s;
  box-shadow: 0 1px 3px rgba(0,0,0,.06);
}
.btn-google-welcome:hover {
  background: #f8f8f8;
  border-color: var(--ink-soft);
}

.welcome-or {
  text-align: center;
  font-size: 0.76em;
  color: var(--ink-soft);
  margin: 12px 0;
}

.email-link-section { width: 100%; }

.email-link-row {
  display: flex;
  gap: 8px;
}
.email-link-row input[type="email"],
#screen-welcome #email-input {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--washi-dark);
  border-radius: 2px;
  font-family: var(--body-ja);
  font-size: 0.88em;
  background: #fff;
  color: var(--ink);
  outline: none;
  transition: border-color .2s;
  width: auto;
}
.email-link-row input[type="email"]:focus,
#screen-welcome #email-input:focus {
  border-color: var(--ink-soft);
}

.email-link-status-msg {
  font-size: 0.8em;
  color: var(--ink-soft);
  margin-top: 6px;
  min-height: 1.2em;
}

.email-link-note {
  font-size: 0.78em;
  color: var(--ink-soft);
  margin-top: 5px;
  line-height: 1.5;
}

.login-benefit-note {
  font-size: 0.8em;
  color: var(--ink-soft);
  margin: 10px 0 6px;
  text-align: center;
}

.welcome-login-confirm {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  width: 100%;
  max-width: 360px;
  padding: 24px;
  background: rgba(30,53,96,.05);
  border: 1px solid rgba(30,53,96,.15);
  border-radius: 4px;
  animation: fadeSlideIn .2s ease-out;
}
.login-confirm-label {
  font-size: 0.78em;
  color: var(--ink-soft);
  letter-spacing: .06em;
  margin: 0;
}
.login-confirm-account {
  font-size: 1em;
  color: var(--ink);
  margin: 0;
  text-align: center;
  word-break: break-all;
}

/* ログイン済み表示 */
.welcome-signed-in {
  background: rgba(30,53,96,.06);
  border: 1px solid rgba(30,53,96,.14);
  border-radius: 2px;
  padding: 12px 20px;
  margin-top: 16px;
  max-width: 360px;
  width: 100%;
}
.welcome-signed-in p {
  font-size: 0.88em;
  color: var(--ink-mid);
  margin: 0 0 6px;
}

.welcome-status-text {
  font-size: 0.85em;
  color: var(--ink-soft);
  margin-top: 12px;
  min-height: 1.2em;
  text-align: center;
}

.welcome-privacy-note {
  font-size: 0.72em;
  color: var(--ink-soft);
  text-align: center;
  margin-top: 32px;
  line-height: 1.9;
}
.welcome-privacy-note a {
  color: var(--indigo);
  text-decoration: underline;
}

/* ── プロフィール画面：実験モード選択カード ── */
.profile-mode-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 10px;
}

.profile-mode-card {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  border: 1.5px solid var(--washi-dark, #e2dbc8);
  border-radius: 10px;
  padding: 0;
  cursor: pointer;
  transition: border-color .2s, background .2s;
  background: #fff;
  overflow: hidden;
}
.profile-mode-card:hover {
  border-color: var(--ink-soft, #5c5044);
  background: #faf9f7;
}
.profile-mode-card input[type="radio"] {
  margin-top: 3px;
  flex-shrink: 0;
  accent-color: var(--vermilion, #be3a1e);
}
.profile-mode-card:has(input:checked) {
  border-color: var(--vermilion, #be3a1e);
  background: rgba(190,58,30,.04);
}

.profile-mode-card-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 16px 14px;
  align-items: flex-start;
}
.profile-mode-card-body strong {
  font-size: 0.95em;
  color: #222;
}
.profile-mode-card-body small {
  font-size: 0.82em;
  color: #666;
  line-height: 1.5;
}

.profile-mode-badge {
  display: block;
  font-size: 0.78em;
  font-weight: 700;
  padding: 5px 14px;
  letter-spacing: .05em;
  width: 100%;
  box-sizing: border-box;
  text-align: center;
}
.profile-mode-badge--expert {
  background: rgba(30,53,96,.12);
  color: var(--indigo, #1e3560);
}
.profile-mode-badge--beginner {
  background: rgba(74,154,96,.14);
  color: #2e7a40;
}

/* ── プロフィール：モード選択見出し ── */
.profile-mode-heading {
  font-size: 1.15em;
  font-weight: 700;
  color: var(--vermilion, #be3a1e);
  margin-bottom: 10px;
  letter-spacing: .02em;
}

/* ── プロフィール：分析セクション ── */
.profile-analysis-section {
  background: rgba(26,20,14,.03);
  border: 1.5px solid rgba(26,20,14,.1);
  border-radius: 8px;
  padding: 14px 16px;
  margin: 16px 0;
}
.profile-analysis-note {
  font-size: .78em;
  color: var(--vermilion, #be3a1e);
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

/* ── プロフィール：スライダー ── */
.freq-btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.freq-btn {
  display: flex;
  align-items: center;
  padding: 12px 20px;
  border: 1.5px solid #ccc;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1em;
  background: #fff;
  transition: border-color 0.15s, background 0.15s;
}

.freq-btn:has(input:checked) {
  border-color: var(--vermilion, #be3a1e);
  background: #fff5f3;
  color: var(--vermilion, #be3a1e);
  font-weight: 700;
}

.freq-btn input[type="radio"] {
  display: none;
}

/* ── 同意画面 ── */
/* スクロールが必要な画面では body のスクロールを許可する */
html.has-consent, html.needs-scroll,
body.has-consent, body.needs-scroll {
  overflow-y: auto;
  height: auto;
  min-height: 100%;
}
body.has-consent, body.needs-scroll {
  align-items: flex-start;
  padding-top: 40px;
  padding-bottom: 40px;
  box-sizing: border-box;
}

#screen-consent {
  text-align: left;
}
#screen-consent h1 {
  text-align: center;
}
.consent-scroll-body {
  background: #fafaf7;
  border: 1px solid #ddd;
  border-radius: 8px;
  padding: 24px 28px;
  max-height: 60vh;
  overflow-y: auto;
  margin: 16px 0;
  font-size: 0.95em;
  line-height: 1.7;
}
.consent-scroll-body h2 { font-size: 1.4em; margin-top: 0; }
.consent-scroll-body h3 { font-size: 1.1em; margin-top: 1.5em; color: #2c5282; }
.consent-scroll-body h4 { font-size: 1em; margin-top: 1.2em; }
.consent-scroll-body table.consent-table {
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 0.9em;
  width: 100%;
}
.consent-scroll-body table.consent-table td {
  border: 1px solid #ccc;
  padding: 6px 10px;
  vertical-align: top;
}
.consent-scroll-body code {
  background: #eef0f3;
  padding: 1px 6px;
  border-radius: 3px;
  font-family: ui-monospace, SFMono-Regular, monospace;
  font-size: 0.92em;
}
.consent-controls {
  background: #fff;
  border: 1px solid #ccc;
  border-radius: 8px;
  padding: 16px 20px;
  margin-top: 16px;
}
.consent-checkbox {
  display: block;
  font-size: 0.95em;
  margin: 8px 0;
  cursor: pointer;
  user-select: none;
}
.consent-checkbox input {
  margin-right: 8px;
  transform: translateY(1px);
}
.consent-buttons {
  display: flex;
  align-items: center;
  margin-top: 16px;
  gap: 12px;
}
#btn-consent-accept {
  flex: 1;
  background-color: var(--vermilion, #be3a1e);
}
#btn-consent-accept:hover:not(:disabled) {
  background-color: #a53318;
}
#btn-consent-accept:disabled {
  background-color: #cfcac2;
  color: #888;
  cursor: not-allowed;
}
.btn-consent-decline {
  background: none;
  border: none;
  color: #aaa;
  font-size: .82em;
  cursor: pointer;
  padding: 8px 4px;
  white-space: nowrap;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.btn-consent-decline:hover {
  color: #666;
}

/* ── Google Sign-In 画面（v6: Firebase Auth ボタン） ── */
.btn-google-signin {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: #fff;
  color: #333;
  border: 1px solid #d0d0d0;
  border-radius: 6px;
  font-size: 1em;
  cursor: pointer;
  box-shadow: 0 1px 2px rgba(0,0,0,.05);
  transition: background .15s;
}
.btn-google-signin:hover {
  background: #f5f7fb;
}
#firebase-signin-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 16px 0 8px;
}
#signed-in-info {
  background: #eef5ff;
  border: 1px solid #cfe0ff;
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 16px;
}
#signed-in-info p {
  margin: 0 0 8px 0;
}
#btn-start-motor:disabled {
  background-color: #cfcac2;
  color: #888;
  cursor: not-allowed;
}

/* ── 撤回ボタン ── */
.btn-danger {
  background-color: #d33;
  color: #fff;
  border: 0;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
}
.btn-danger:hover {
  background-color: #b22;
}

/* ── 進捗表示 ── */
#progress-display {
  font-weight: 500;
}

/* ── Google Sign-In 画面 ── */
#google-signin-button {
  display: flex;
  justify-content: center;
  margin: 16px 0 8px;
  min-height: 44px;
}
#signed-in-info {
  background: #eef5ff;
  border: 1px solid #cfe0ff;
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 16px;
}
#signed-in-info p {
  margin: 0 0 8px 0;
}
#btn-start-motor:disabled {
  background-color: #cfcac2;
  color: #888;
  cursor: not-allowed;
}

/* ── 体験画面：試合コンテキストアニメーション ── */
.demo-match-context {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  width: 100%;
  padding: 4px 0 8px;
}

.dmc-heading {
  font-family: var(--display);
  font-size: 1.35em;
  font-weight: 700;
  color: var(--ink);
  margin: 0;
  letter-spacing: .04em;
  text-align: center;
}

.dmc-timeline {
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 340px;
  gap: 0;
}

.dmc-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.dmc-icon {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5em;
}

.dmc-icon--sound {
  background: var(--washi);
  border: 2px solid var(--washi-dark);
  color: var(--ink-mid);
}

.dmc-icon--press {
  background: rgba(190,58,30,.1);
  border: 2px solid var(--vermilion);
  color: var(--vermilion);
  font-family: var(--display);
  font-size: 0.85em;
  font-weight: 700;
  letter-spacing: .02em;
}

.dmc-node-label {
  font-size: 0.95em;
  color: var(--ink-soft);
  text-align: center;
  line-height: 1.4;
  white-space: nowrap;
}

.dmc-measure-track {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 0 10px;
  margin-bottom: 20px;
}

.dmc-measure-bar {
  height: 6px;
  width: 100%;
  background: var(--washi-dark);
  border-radius: 3px;
  overflow: hidden;
  position: relative;
}

.dmc-measure-beam {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 40%;
  background: linear-gradient(90deg, transparent, var(--vermilion), transparent);
  border-radius: 3px;
  animation: demoBeamSlide 2s ease-in-out infinite;
}

@keyframes demoBeamSlide {
  0%   { left: -40%; }
  100% { left: 140%; }
}

.dmc-measure-label {
  font-size: 0.9em;
  color: var(--vermilion);
  font-weight: 600;
  white-space: nowrap;
  letter-spacing: .05em;
}

.dmc-sub {
  font-size: 1.05em;
  color: var(--ink-soft);
  text-align: center;
  line-height: 1.75;
  margin: 0;
  max-width: 320px;
}

.dmc-sub--note {
  font-size: 0.95em;
  margin-top: -6px;
  color: var(--ink-soft);
  opacity: 0.8;
}

/* ── 初心者向けタイミング図 ── */
.dmc-beginner-diagram {
  width: 100%;
  max-width: 320px;
  margin: 4px 0 8px;
}
.dmc-timing-row {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 6px;
  margin-bottom: 10px;
}
.dmc-timing-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  min-width: 58px;
}
.dmc-timing-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9em;
  font-weight: 700;
  background: rgba(26,20,14,.07);
  color: var(--ink-soft);
}
.dmc-timing-icon--sound {
  background: rgba(190,58,30,.12);
  color: var(--vermilion);
  font-size: 1.1em;
}
.dmc-timing-icon--listen {
  background: rgba(30,53,96,.12);
  color: var(--indigo);
  font-size: 0.75em;
}
.dmc-timing-step--target .dmc-timing-icon {
  background: rgba(30,53,96,.12);
  color: var(--indigo);
}
.dmc-timing-arrow {
  color: var(--ink-soft);
  opacity: 0.45;
  font-size: 1.1em;
  flex-shrink: 0;
  margin-top: 12px;
}
.dmc-timing-label {
  font-size: 0.9em;
  text-align: center;
  color: var(--ink-soft);
  line-height: 1.45;
  font-family: var(--body-ja);
}
.dmc-timing-sub {
  opacity: 0.75;
}
.dmc-beginner-note {
  font-size: 0.95em;
  color: var(--ink-soft);
  text-align: center;
  line-height: 1.65;
  margin: 0;
  opacity: 0.9;
  background: rgba(30,53,96,.06);
  border-radius: 6px;
  padding: 8px 12px;
}

.btn-demo-context-ok {
  background: var(--ink);
  color: var(--cream);
  border: none;
  border-radius: 2px;
  padding: 14px 36px;
  font-family: var(--display);
  font-size: 1em;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: .06em;
  transition: background .15s, transform .1s;
  box-shadow: 2px 3px 0 var(--ink-soft);
}
.btn-demo-context-ok:hover {
  background: var(--ink-mid);
  transform: translate(-1px, -1px);
  box-shadow: 3px 4px 0 var(--ink-soft);
}
.btn-demo-context-ok:active {
  transform: translate(1px, 1px);
  box-shadow: 1px 1px 0 var(--ink-soft);
}

/* ── 体験画面 ── */
.demo-progress {
  font-size: 1.05em;
  color: var(--ink-soft, #5c5044);
  margin-bottom: 12px;
}

/* フロー図 */
.demo-flow-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin: 8px 0 20px;
  flex-wrap: wrap;
}
.demo-flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.demo-flow-icon {
  width: 64px;
  height: 64px;
  border-radius: 12px;
  background: rgba(26,20,14,.06);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8em;
  border: 1.5px solid rgba(26,20,14,.12);
}
.demo-flow-key {
  font-family: monospace;
  font-size: .75em;
  font-weight: 700;
  letter-spacing: .04em;
  background: var(--cream, #fdfbf5);
  border: 2px solid var(--vermilion, #be3a1e);
  color: var(--vermilion, #be3a1e);
}
.demo-flow-step-action .demo-flow-icon {
  background: rgba(190,58,30,.08);
  border-color: rgba(190,58,30,.3);
}
.demo-flow-label {
  font-size: 1.0em;
  color: var(--ink-soft, #5c5044);
  font-weight: 500;
}
.demo-flow-arrow {
  font-size: 1.4em;
  color: rgba(26,20,14,.25);
  margin-top: -18px;
}

/* 一言ヒント */
.demo-short-hint {
  font-size: 1.2em;
  color: var(--ink-mid, #3a3028);
  text-align: center;
  margin-bottom: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

/* 初心者モード：決まり字ビジュアルヒント */
.dkh-label {
  font-size: 0.95em;
  color: var(--ink-soft);
  letter-spacing: .08em;
}
.dkh-chars {
  display: flex;
  gap: 4px;
  justify-content: center;
}
.dkh-char {
  font-family: var(--display);
  font-size: 2em;
  font-weight: 700;
  color: var(--vermilion);
  line-height: 1.1;
}
.dkh-sub {
  font-size: 0.95em;
  color: var(--ink-soft);
  margin-top: 2px;
}

/* サウンドバー（再生中アニメーション） */
.demo-audio-visual {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 5px;
  height: 56px;
  margin: 8px auto;
}
.demo-bar {
  width: 7px;
  border-radius: 4px;
  background: var(--vermilion, #be3a1e);
  animation: demoBar .7s ease-in-out infinite alternate;
}
.demo-bar:nth-child(1) { height: 18px; animation-delay: 0s;    animation-duration: .65s; }
.demo-bar:nth-child(2) { height: 36px; animation-delay: .12s;  animation-duration: .8s;  }
.demo-bar:nth-child(3) { height: 52px; animation-delay: .05s;  animation-duration: .55s; }
.demo-bar:nth-child(4) { height: 36px; animation-delay: .22s;  animation-duration: .75s; }
.demo-bar:nth-child(5) { height: 18px; animation-delay: .08s;  animation-duration: .6s;  }
@keyframes demoBar {
  from { transform: scaleY(.25); opacity: .5; }
  to   { transform: scaleY(1);   opacity: 1;  }
}

/* 押すボタン（本測定の #press-button と同じスタイル） */
#demo-press-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 160px;
  height: 160px;
  border-radius: 50%;
  background: linear-gradient(150deg, #c8603c 0%, #a03828 100%);
  border: none;
  cursor: pointer;
  margin: 16px auto;
  font-size: 1.4em;
  font-weight: 700;
  color: #fff;
  user-select: none;
  box-shadow: 0 4px 18px rgba(160,56,40,.28);
  transition: transform .12s, box-shadow .12s;
}
#demo-press-area:active {
  transform: scale(.95);
  box-shadow: 0 2px 8px rgba(160,56,40,.18);
}

/* RT表示 */
.demo-rt-display {
  font-size: 2.4em;
  font-weight: 700;
  color: var(--ink, #1a140e);
}
.demo-rt-unit {
  font-size: .45em;
  color: #888;
}
.demo-result-comment {
  font-size: .86em;
  color: var(--ink-mid, #3a3028);
  margin-top: 10px;
  line-height: 1.7;
}

/* 完了画面統計 */
.demo-complete-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin: 16px 0 10px;
  flex-wrap: wrap;
}
.demo-complete-stat {
  text-align: center;
}
.demo-complete-num {
  display: block;
  font-family: var(--display, 'Zen Old Mincho', serif);
  font-size: 1.8em;
  font-weight: 700;
  color: var(--ink, #1a140e);
  line-height: 1.1;
}
.demo-complete-unit {
  display: block;
  font-size: .78em;
  color: var(--ink-soft, #5c5044);
  margin-top: 2px;
}
.demo-complete-sep {
  font-size: 1.4em;
  color: rgba(26,20,14,.3);
  margin-top: -8px;
}
.demo-complete-note {
  font-size: .82em;
  color: var(--ink-soft, #5c5044);
  margin-bottom: 20px;
}

/* ── ベース ── */
body {
  background-color: var(--washi);
  color: #222;
}

#app {
  background: var(--cream);
  box-shadow: 0 2px 20px rgba(0,0,0,0.07);
  border-radius: 16px;
}

h2 {
  font-weight: 600;
  color: #333;
}

/* ── ボタン（通常） ── */
button {
  background-color: #4a86c0;
  border-radius: 8px;
  font-weight: 500;
  transition: background-color 0.15s, transform 0.1s;
}
button:hover:not(:disabled) {
  background-color: #3a74ae;
  transform: translateY(-1px);
}
button:active:not(:disabled) {
  transform: translateY(0);
}
button:disabled {
  background-color: #c8c4be;
  color: #888;
}

/* セカンダリボタン */
.btn-secondary {
  background-color: transparent;
  color: #333;
  border: 1.5px solid #999;
  font-size: 0.9em;
  font-weight: 500;
}
.btn-secondary:hover:not(:disabled) {
  background-color: #ece9e3;
  color: #333;
  transform: none;
}

/* ── main-intro ── */
.main-intro-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 20px;
}

.main-intro-eyebrow {
  font-size: 0.67em;
  letter-spacing: 0.18em;
  color: var(--ink-soft);
  margin-bottom: 2px;
}

.main-intro-heading {
  font-family: var(--display);
  font-size: 2.4em;
  font-weight: 900;
  color: var(--vermilion);
  letter-spacing: 0.1em;
  margin: 0;
  line-height: 1;
}

.main-intro-heading::after {
  content: '';
  display: block;
  width: 36px;
  height: 2px;
  background: var(--vermilion);
  opacity: 0.35;
  margin: 10px auto 0;
  border-radius: 1px;
}

.main-intro-flow {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 4px;
  margin: 0 0 16px;
  flex-wrap: wrap;
}

.mif-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  background: var(--washi);
  border-radius: 14px;
  padding: 14px 12px 10px;
  min-width: 72px;
}

.mif-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--vermilion);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.78em;
  font-weight: 700;
  letter-spacing: 0;
  flex-shrink: 0;
}

.mif-key {
  background: var(--ink);
  color: #fff;
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 0.7em;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.mif-label {
  font-size: 0.68em;
  color: var(--ink-soft);
  text-align: center;
  line-height: 1.45;
}

.mif-step--key {
  background: #fff5f3;
  border: 1.5px solid rgba(190,58,30,0.22);
}

.mif-arrow {
  color: #c8bfb3;
  font-size: 1.3em;
  flex-shrink: 0;
  margin-top: 20px;
  line-height: 1;
}

.main-intro-warn {
  font-size: 0.8em;
  color: #8b1a0a;
  background: #fff5f3;
  border-left: 3px solid var(--vermilion);
  padding: 9px 14px;
  border-radius: 0 8px 8px 0;
  margin: 0 0 14px;
  text-align: left;
  line-height: 1.6;
}

.main-intro-info {
  background: var(--washi);
  border-radius: 12px;
  padding: 12px 16px;
  margin: 0 0 22px;
  width: 100%;
  box-sizing: border-box;
  text-align: left;
}

.mii-item {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 0.78em;
  color: var(--ink-mid);
  padding: 3px 0;
  line-height: 1.5;
}

.mii-label {
  font-weight: 600;
  color: var(--ink);
  flex-shrink: 0;
  min-width: 44px;
}

.mii-text {
  color: var(--ink-soft);
}

.mii-divider {
  height: 1px;
  background: rgba(0,0,0,0.07);
  margin: 5px 0;
}

/* ── 進捗バー（再開者） ── */
.mip-wrap {
  background: var(--washi);
  border-radius: 12px;
  padding: 12px 16px;
  margin-bottom: 16px;
  width: 100%;
  box-sizing: border-box;
}

.mip-bar-bg {
  background: var(--washi-dark);
  border-radius: 999px;
  height: 8px;
  overflow: hidden;
  margin-bottom: 6px;
}

.mip-bar-fill {
  height: 100%;
  background: var(--vermilion);
  border-radius: 999px;
  width: 0%;
  transition: width 0.7s ease;
}

.mip-text {
  font-size: 0.8em;
  color: var(--ink-soft);
  text-align: center;
  margin: 0;
}

.mip-pct {
  font-weight: 700;
  color: var(--vermilion);
}

/* ── 体験・本測定・反応速度ボタン（共通・可愛い暖色グラデ） ── */
.btn-try-demo,
#btn-start-main,
#btn-demo-start,
#btn-start-motor-task {
  background: linear-gradient(150deg, #c8603c 0%, #a03828 100%);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 13px 28px;
  font-size: 1em;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.04em;
  box-shadow: 0 4px 18px rgba(160,56,40,.28);
  transition: all .18s ease;
  width: 100%;
  max-width: 300px;
  box-sizing: border-box;
  white-space: nowrap;
  display: block;
  margin-left: auto;
  margin-right: auto;
}
.btn-try-demo:hover,
#btn-start-main:hover,
#btn-demo-start:hover,
#btn-start-motor-task:hover {
  background: linear-gradient(150deg, #b85030 0%, #8c3020 100%);
  box-shadow: 0 6px 22px rgba(160,56,40,.38);
  transform: translateY(-2px);
}
.btn-try-demo:active,
#btn-start-main:active,
#btn-demo-start:active,
#btn-start-motor-task:active {
  transform: translateY(0);
  box-shadow: 0 2px 10px rgba(160,56,40,.22);
}

/* ── 「ここで終わる」ボタン ── */
.trial-top-bar {
  display: flex;
  align-items: center;
  width: 100%;
  gap: 8px;
  margin-bottom: 16px;
}
.trial-top-bar .exp-progress-wrap,
.trial-top-bar .demo-progress {
  flex: 1;
  margin: 0;
}
.btn-trial-nav {
  flex-shrink: 0;
  background: transparent;
  border: 1px solid rgba(0,0,0,0.15);
  border-radius: 6px;
  color: #666;
  font-size: 0.78em;
  padding: 5px 10px;
  white-space: nowrap;
  box-shadow: none;
  cursor: pointer;
}
.btn-trial-nav:hover {
  background: rgba(0,0,0,0.05);
  color: #333;
  transform: none;
}

/* ── 休憩画面ボタン ── */
.break-main-row {
  display: flex;
  align-items: center;
  gap: 16px;
  width: 100%;
  max-width: 300px;
  margin: 4px auto 0;
}
.break-resume-btn {
  flex: 1;
  background: linear-gradient(150deg, #e8786e 0%, #c8506b 100%) !important;
  color: #fff !important;
  border: none !important;
  border-radius: 999px !important;
  padding: 14px 20px !important;
  font-size: 1.05em !important;
  font-weight: 700 !important;
  box-shadow: 0 4px 16px rgba(200,80,107,.26) !important;
  cursor: pointer;
}
.break-resume-btn:hover {
  background: linear-gradient(150deg, #d86860 0%, #b84060 100%) !important;
  transform: translateY(-2px);
}
.break-finish-btn {
  background: transparent !important;
  border: none !important;
  color: #bbb !important;
  font-size: 0.78em !important;
  padding: 6px 4px !important;
  cursor: pointer;
  box-shadow: none !important;
  white-space: nowrap;
  flex-shrink: 0;
}
.break-finish-btn:hover {
  color: #888 !important;
  background: transparent !important;
  transform: none !important;
}
.break-undo-btn {
  margin-top: 28px !important;
  font-size: 0.82em !important;
  color: #999 !important;
  align-self: flex-start;
  margin-left: 8px !important;
}

/* ── 実験中進捗バー ── */
.exp-progress-wrap {
  width: 100%;
  max-width: 320px;
  margin: 0 auto;
  text-align: center;
}
.exp-progress-bar-bg {
  background: rgba(0,0,0,0.10);
  border-radius: 999px;
  height: 8px;
  overflow: hidden;
  margin-bottom: 6px;
}
.exp-progress-bar-fill {
  height: 100%;
  background: #c8603c;
  border-radius: 999px;
  width: 0%;
  transition: width 0.5s ease, background-color 0.4s ease;
}
.exp-progress-pct {
  font-size: 0.85em;
  color: var(--ink-soft);
  margin: 0;
  display: block;
  font-weight: 500;
}

/* ── 初心者ヒント（試行中） ── */
.beginner-hint-h2 {
  font-family: var(--body-ja);
  font-size: 1.3em;
  font-weight: 600;
  color: #333;
  text-align: center;
  margin: 2px 0 12px;
  line-height: 1.5;
}
.beginner-hint-h2 span {
  font-weight: 900;
  color: var(--indigo);
}

/* ── 押しボタン エリア ── */
#press-button {
  background: linear-gradient(150deg, #c8603c 0%, #a03828 100%);
  border-radius: 14px;
  color: #fff;
  padding: 28px 32px;
  box-sizing: border-box;
  text-align: center;
  font-size: 1.2em;
  line-height: 1.7;
  font-weight: 600;
  box-shadow: 0 3px 14px rgba(160,56,40,.22);
  transition: transform .1s, box-shadow .1s;
  cursor: pointer;
  margin-top: 28px;
}
#press-button:active {
  transform: scale(.97);
  box-shadow: 0 1px 6px rgba(160,56,40,.16);
}

/* ── モーターエリア ── */
#motor-area-container {
  background: transparent;
  border: none;
  border-radius: 0;
  width: 100%;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 0 8px;
  min-height: unset;
}
#motor-area {
  width: 100%;
  min-height: 180px;
  border-radius: 16px;
  background: linear-gradient(150deg, #c8603c 0%, #a03828 100%);
  border: none;
  box-shadow: 0 4px 18px rgba(160,56,40,.28);
  color: #fff;
  font-family: var(--body-ja);
  font-size: 1.05em;
  font-weight: 700;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  transition: transform .12s, box-shadow .12s;
}
#motor-area:active {
  transform: scale(.98);
  box-shadow: 0 2px 8px rgba(160,56,40,.18);
}
#motor-area.responded {
  background: #4a7c59 !important;
  border: none;
  color: #fff;
  box-shadow: none;
  transition: none;
}

/* ── 五十音グリッド ── */
.choice-step.gojuon-grid {
  border: 1.5px solid #ccc8c0;
  border-radius: 10px;
  background: #faf9f7;
}
.initial-btn {
  background-color: #faf9f7;
  color: #222;
  border: 1.5px solid #999590;
  border-radius: 6px;
  font-weight: 500;
}
.initial-btn:hover:not([disabled]) {
  background-color: #ddeaf6;
  border-color: #4a86c0;
}
.initial-btn:disabled {
  background-color: #ece9e3;
  color: #bbb;
  border-color: #d8d4ce;
}

/* ── パイメニュー ── */
.pie-overlay {
  background: rgba(0,0,0,0.22);
}
.pie-sector {
  fill: #faf9f7;
  stroke: #aaa49c;
  stroke-width: 1.5;
}
.pie-sector:hover {
  fill: #ddeaf6;
}
.pie-sector.confirmed {
  fill: #4a9a60;
  stroke: #3d8652;
}
.pie-label.confirmed {
  stroke: #3d8652;
}
.pie-center-circle {
  stroke: #aaa49c;
  stroke-width: 2;
}
.pie-center-circle.back {
  fill: #ece9e3;
}
.pie-label {
  fill: #222;
  stroke: #faf9f7;
  font-weight: 700;
}

.section-hidden { display: none !important; }