:root {
  color-scheme: dark;
}

.ek-page-body {
  background: #070a12;
  color: #e5e7eb;
}

/* サイト共通ヘッダー（白/灰）をダークツールに合わせる */
.ek-page-body #pctrouble-header-menu header {
  background: rgba(11, 18, 32, 0.94) !important;
  backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.08);
}

.ek-page-body #pctrouble-header-menu header > nav > div > a,
.ek-page-body #pctrouble-header-menu header .mega-menu-item > button,
.ek-page-body #pctrouble-header-menu header #mobile-menu-button {
  color: #e5e7eb !important;
}

.ek-page-body #pctrouble-header-menu header > nav > div > a:hover,
.ek-page-body #pctrouble-header-menu header .mega-menu-item > button:hover {
  color: #93c5fd !important;
}

.ek-page-body #pctrouble-header-menu header button:hover {
  background: rgba(255, 255, 255, 0.08) !important;
}

/* メガメニュー（白背景）はダーク用の上書きを解除して読みやすく */
.ek-page-body #pctrouble-header-menu .mega-menu-content {
  color: #1f2937;
}

.ek-page-body #pctrouble-header-menu .mega-menu-content a {
  color: inherit !important;
}

.ek-page-body #pctrouble-header-menu .mega-menu-content .text-gray-900 {
  color: #111827 !important;
}

.ek-page-body #pctrouble-header-menu .mega-menu-content .text-gray-500 {
  color: #4b5563 !important;
}

.ek-page-body #pctrouble-header-menu .mega-menu-content a:hover .text-gray-900 {
  color: #1d4ed8 !important;
}

.ek-page-body #pctrouble-header-menu #mobile-menu-panel {
  color: #1f2937;
}

.ek-page-body #pctrouble-header-menu #mobile-menu-panel .text-gray-900,
.ek-page-body #pctrouble-header-menu #mobile-menu-panel .text-gray-800 {
  color: #111827 !important;
}

.ek-page-body #pctrouble-header-menu #mobile-menu-panel .text-gray-500,
.ek-page-body #pctrouble-header-menu #mobile-menu-panel .text-gray-600 {
  color: #4b5563 !important;
}

.ek-page-body #pctrouble-header-menu .hamburger-line {
  background-color: #e5e7eb !important;
}

.ek-embed-doc {
  background: #070a12;
  overflow-x: hidden;
  overflow-y: auto !important;
  height: auto !important;
  min-height: 0;
}

.ek-embed-doc body {
  background: #070a12;
  overflow-x: hidden;
  overflow-y: auto !important;
  height: auto !important;
  min-height: 0;
}

.ek-embed-doc body.ek-embed {
  -webkit-overflow-scrolling: touch;
}

.ek-embed .ek-page-main {
  padding-top: 0.25rem;
  overflow: visible;
}

.ek-page-main {
  padding: 0.75rem 0.75rem 3.5rem;
}

.ek-app {
  max-width: 46rem;
  margin: 0 auto;
}

/* サイト共通CSS（Tailwind等）のボタンリセットを上書き */
.ek-app button {
  appearance: none;
  -webkit-appearance: none;
  font-family: inherit;
  line-height: inherit;
}

.ek-topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem 0.25rem 0.5rem;
}

.ek-brand__name {
  margin: 0;
  font-weight: 800;
  letter-spacing: 0.02em;
  font-size: 1.25rem;
  line-height: 1.2;
}
.ek-brand__sub {
  margin: 0.2rem 0 0;
  font-size: 0.8rem;
  color: #a7b0c0;
}

.ek-actions {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.ek-btn {
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
  font-weight: 650;
  background: rgba(255, 255, 255, 0.06);
  color: #e5e7eb;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}
.ek-btn:active {
  transform: translateY(1px);
}
.ek-btn--primary {
  background: #e5e7eb;
  color: #0b1220;
  border-color: rgba(255, 255, 255, 0.2);
}
.ek-btn--outline {
  background: transparent;
}
.ek-btn--ghost {
  background: transparent;
  border-color: transparent;
  color: #cdd5e1;
}

.ek-icon-btn {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.06);
  color: #e5e7eb;
  border-radius: 999px;
  width: 2.25rem;
  height: 2.25rem;
  font-size: 1.25rem;
}

.ek-control-card {
  border-radius: 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.05);
  padding: 0.9rem;
}

.ek-field--view {
  margin-bottom: 0.85rem;
}

/* 設定カテゴリごとに色味を分ける（表示モード＝青 / 難しさ＝琥珀 / 速度＝緑） */
.ek-field--view .ek-field__label {
  color: #93c5fd;
}

.ek-field--level .ek-field__label {
  color: #fcd34d;
}

.ek-field--rate .ek-field__label {
  color: #6ee7b7;
}

.ek-seg--view .ek-seg__btn {
  border-color: rgba(147, 197, 253, 0.28);
  background: rgba(59, 130, 246, 0.14);
  color: #dbeafe;
}

.ek-seg--view .ek-seg__btn.is-active {
  background: linear-gradient(180deg, #60a5fa, #3b82f6);
  color: #f8fafc;
  border-color: rgba(191, 219, 254, 0.55);
  box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.35);
}

.ek-seg--level .ek-seg__btn {
  border-color: rgba(251, 191, 36, 0.32);
  background: rgba(245, 158, 11, 0.12);
  color: #fde68a;
}

.ek-seg--level .ek-seg__btn.is-active {
  background: linear-gradient(180deg, #fbbf24, #d97706);
  color: #1c1917;
  border-color: rgba(253, 230, 138, 0.55);
  box-shadow: 0 0 0 1px rgba(245, 158, 11, 0.35);
}

.ek-seg--rate .ek-seg__btn {
  border-color: rgba(52, 211, 153, 0.3);
  background: rgba(16, 185, 129, 0.12);
  color: #a7f3d0;
}

.ek-seg--rate .ek-seg__btn.is-active {
  background: linear-gradient(180deg, #34d399, #059669);
  color: #ecfdf5;
  border-color: rgba(167, 243, 208, 0.55);
  box-shadow: 0 0 0 1px rgba(16, 185, 129, 0.35);
}

/* 表示モード・難易度・速度はすべて grid（.ek-seg の flex より後で定義し上書き） */
.ek-seg--view,
.ek-seg--level,
.ek-seg--rate {
  display: grid;
  gap: 0.4rem;
}

.ek-seg--view {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

@media (min-width: 520px) {
  .ek-seg--view {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.ek-control-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  align-items: stretch;
}

.ek-control-row--settings {
  margin-top: 0.15rem;
}

.ek-field--level,
.ek-field--rate {
  display: block;
  min-width: 0;
}

.ek-seg--level,
.ek-seg--rate {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.ek-seg--view .ek-seg__btn,
.ek-seg--level .ek-seg__btn,
.ek-seg--rate .ek-seg__btn {
  flex: none;
  width: 100%;
  min-width: 0;
  min-height: 2.5rem;
  border-radius: 0.75rem;
  padding: 0.45rem 0.4rem;
  font-size: 0.76rem;
  line-height: 1.3;
  white-space: normal;
  text-align: center;
  word-break: keep-all;
}

.ek-toggle-group {
  display: grid;
  gap: 0.5rem;
}

@media (min-width: 400px) {
  .ek-toggle-group {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.ek-toggle-group .ek-toggle {
  width: 100%;
  box-sizing: border-box;
}

.ek-seg__btn {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 0.75rem;
  padding: 0.55rem 0.65rem;
  font-size: 0.82rem;
  font-weight: 650;
  background: rgba(0, 0, 0, 0.2);
  color: #cbd5e1;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.ek-seg__btn.is-active {
  background: #e5e7eb;
  color: #0b1220;
  border-color: rgba(255, 255, 255, 0.35);
}

.ek-seg__btn:focus-visible {
  outline: 2px solid #93c5fd;
  outline-offset: 2px;
}

.ek-field__label {
  display: block;
  font-size: 0.75rem;
  color: #a7b0c0;
  margin-bottom: 0.25rem;
}
.ek-select {
  width: 100%;
  border-radius: 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background-color: #1e293b;
  color: #e5e7eb;
  padding: 0.65rem 0.75rem;
  font-size: 0.95rem;
}

.ek-select option {
  background-color: #1e293b;
  color: #f1f5f9;
}

.ek-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  user-select: none;
  padding: 0.55rem 0.6rem;
  border-radius: 0.9rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.15);
}
.ek-toggle input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.ek-toggle__ui {
  width: 2.25rem;
  height: 1.25rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  position: relative;
}
.ek-toggle__ui::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 0.15rem;
  width: 0.95rem;
  height: 0.95rem;
  border-radius: 999px;
  background: #e5e7eb;
  transform: translateY(-50%);
  transition: transform 120ms ease;
}
.ek-toggle input:checked + .ek-toggle__ui::after {
  transform: translate(1rem, -50%);
}
.ek-toggle__label {
  font-size: 0.85rem;
  font-weight: 650;
  color: #cdd5e1;
}

.ek-note {
  margin-top: 0.7rem;
  font-size: 0.85rem;
  color: #a7b0c0;
}

.ek-note--hint,
.ek-note--status {
  margin-top: 0.5rem;
  padding: 0.55rem 0.65rem;
  border-radius: 0.65rem;
  background: rgba(30, 58, 138, 0.25);
  border: 1px solid rgba(147, 197, 253, 0.2);
  color: #bfdbfe;
  line-height: 1.55;
  font-size: 0.82rem;
}

.ek-note--status {
  font-weight: 650;
  letter-spacing: 0.01em;
}

.ek-note-confusing {
  color: #fde68a;
  border-left: 3px solid rgba(253, 230, 138, 0.45);
  padding-left: 0.5rem;
}

.ek-note-ai {
  color: #a5f3fc;
  border-left: 3px solid rgba(165, 243, 252, 0.4);
  padding-left: 0.5rem;
}

.ek-chip--ai {
  color: #a5f3fc;
  border-color: rgba(165, 243, 252, 0.35);
}

.ek-detail-notes {
  display: grid;
  gap: 0.4rem;
}

.ek-rank {
  border-radius: 1.35rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  padding: 1rem;
}

.ek-rank__intro {
  margin: 0 0 0.85rem;
  font-size: 0.9rem;
  color: #a7b0c0;
  line-height: 1.5;
}

.ek-rank__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.55rem;
}

.ek-rank__row {
  display: grid;
  grid-template-columns: 5.5rem 1fr auto;
  gap: 0.5rem;
  align-items: center;
}

.ek-rank__word {
  font-weight: 800;
  font-size: 0.95rem;
  color: #f1f5f9;
  text-transform: lowercase;
}

.ek-rank__bar-wrap {
  display: block;
  height: 0.45rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.ek-rank__bar {
  display: block;
  height: 100%;
  width: var(--ek-rank-pct, 30%);
  border-radius: inherit;
  background: linear-gradient(90deg, #3b82f6, #93c5fd);
}

.ek-rank__play {
  padding: 0.35rem 0.55rem;
  font-size: 0.8rem;
}

.ek-ai-busy {
  margin-top: 0.65rem;
  border-radius: 1rem;
  border: 1px solid rgba(147, 197, 253, 0.35);
  background: rgba(30, 58, 138, 0.35);
  padding: 0.85rem 1rem;
  animation: ek-ai-pulse 2s ease-in-out infinite;
}

.ek-ai-busy[hidden] {
  display: none !important;
}

.ek-ai-busy__title {
  margin: 0;
  font-weight: 800;
  font-size: 0.95rem;
  color: #e0f2fe;
}

.ek-ai-busy__body {
  margin: 0.45rem 0 0;
  font-size: 0.85rem;
  line-height: 1.55;
  color: #bfdbfe;
}

.ek-ai-busy__bar-wrap {
  margin-top: 0.65rem;
  height: 0.5rem;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.25);
  overflow: hidden;
}

.ek-ai-busy__bar {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: linear-gradient(90deg, #38bdf8, #a5f3fc);
  transition: width 0.25s ease;
}

@keyframes ek-ai-pulse {
  0%,
  100% {
    border-color: rgba(147, 197, 253, 0.35);
  }
  50% {
    border-color: rgba(165, 243, 252, 0.65);
  }
}

.ek-feed {
  margin-top: 0.85rem;
  display: grid;
  gap: 0.75rem;
}

.ek-btn--sm {
  padding: 0.35rem 0.6rem;
  font-size: 0.8rem;
}

.ek-log-card {
  margin-top: 1rem;
  border-radius: 1rem;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.2);
  padding: 0.65rem 0.75rem;
}

.ek-log-details {
  font-size: 0.85rem;
}

.ek-log-summary {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.35rem 0.65rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
  color: #cbd5e1;
}

.ek-log-summary::-webkit-details-marker {
  display: none;
}

.ek-log-summary::before {
  content: '▶';
  display: inline-block;
  margin-right: 0.35rem;
  font-size: 0.65rem;
  transition: transform 0.15s ease;
}

.ek-log-details[open] .ek-log-summary::before {
  transform: rotate(90deg);
}

.ek-log-summary__title {
  font-weight: 700;
  color: #e5e7eb;
}

.ek-log-summary__note {
  font-size: 0.72rem;
  color: #94a3b8;
}

.ek-log-body {
  margin-top: 0.65rem;
}

.ek-log-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 0.45rem;
}

.ek-log-view {
  width: 100%;
  min-height: 9rem;
  padding: 0.6rem 0.7rem;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 0.65rem;
  font-family: ui-monospace, Consolas, 'Cascadia Code', monospace;
  font-size: 0.68rem;
  line-height: 1.45;
  resize: vertical;
  background: #0f172a;
  color: #e2e8f0;
  box-sizing: border-box;
}

.ek-log-card.has-errors .ek-log-view {
  border-color: rgba(248, 113, 113, 0.55);
  background: #1f1215;
}

.ek-log-card.has-errors .ek-log-summary__title {
  color: #fca5a5;
}

.ek-card {
  border-radius: 1.35rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  padding: 1rem;
  overflow: hidden;
}

.ek-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.65rem;
}
.ek-chip {
  display: inline-flex;
  gap: 0.4rem;
  align-items: center;
  font-size: 0.75rem;
  color: #a7b0c0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 0.2rem 0.55rem;
  background: rgba(0, 0, 0, 0.15);
}

.ek-jp-title {
  margin: 0;
  font-size: 1rem;
  line-height: 1.45;
  color: #e5e7eb;
}

.ek-en--pending {
  color: var(--ek-muted, #8b9cb3);
  font-style: italic;
  font-weight: 500;
}

.ek-en {
  margin: 0.6rem 0 0;
  font-size: 1.25rem;
  line-height: 1.4;
  font-weight: 800;
  letter-spacing: 0.01em;
  color: #f1f5f9;
}

.ek-split-wrap {
  margin: 0.55rem 0 0;
}

.ek-split-lead {
  margin: 0 0 0.35rem;
  font-size: 0.82rem;
  line-height: 1.45;
}

.ek-split__label-wrap {
  position: relative;
  display: inline-block;
}

.ek-split__label {
  display: inline-block;
  padding: 0.1rem 0.45rem;
  border-radius: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: #c4b5fd;
  background: rgba(139, 92, 246, 0.18);
  border: 1px solid rgba(167, 139, 250, 0.28);
  cursor: help;
}

.ek-split__label:focus-visible {
  outline: 2px solid #a78bfa;
  outline-offset: 2px;
}

.ek-split__tip {
  position: absolute;
  z-index: 5;
  left: 0;
  top: calc(100% + 0.35rem);
  width: min(18rem, calc(100vw - 2rem));
  padding: 0.45rem 0.55rem;
  border-radius: 0.5rem;
  font-size: 0.78rem;
  font-weight: 500;
  line-height: 1.45;
  color: #e2e8f0;
  background: #1e293b;
  border: 1px solid rgba(167, 139, 250, 0.35);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.15s ease, visibility 0.15s ease;
}

.ek-split__label-wrap:hover .ek-split__tip,
.ek-split__label-wrap:focus-within .ek-split__tip {
  opacity: 1;
  visibility: visible;
}

.ek-split {
  margin: 0;
  font-size: 0.95rem;
  color: #b7c0d2;
  line-height: 1.55;
}
.ek-split span {
  display: inline-block;
  padding: 0.08rem 0.35rem;
  margin: 0.1rem 0.15rem 0 0;
  border-radius: 0.6rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
}

.ek-split-chip {
  cursor: help;
  user-select: none;
}

.ek-seg-tooltip {
  position: absolute;
  z-index: 50;
  padding: 0.45rem 0.55rem;
  border-radius: 0.55rem;
  background: #0b1220;
  border: 1px solid rgba(147, 197, 253, 0.35);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  color: #e2e8f0;
  font-size: 0.82rem;
  line-height: 1.4;
  max-width: 22rem;
  pointer-events: none;
  white-space: normal;
}

.ek-summary {
  margin: 0.65rem 0 0;
  font-size: 0.9rem;
  color: #a7b0c0;
  line-height: 1.5;
}

.ek-summary__label {
  display: inline-block;
  margin-right: 0.35rem;
  padding: 0.1rem 0.45rem;
  border-radius: 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: #bfdbfe;
  background: rgba(59, 130, 246, 0.2);
  border: 1px solid rgba(147, 197, 253, 0.25);
}

.ek-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.85rem;
}

.ek-link {
  margin-left: auto;
  font-size: 0.9rem;
  color: #dbeafe;
  text-decoration: underline;
}

.ek-detail {
  margin-top: 0.8rem;
  padding-top: 0.8rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: grid;
  gap: 0.55rem;
}

.ek-detail__status,
.ek-detail__muted {
  margin: 0;
  font-size: 0.88rem;
  color: #a7b0c0;
  line-height: 1.5;
}

.ek-detail-words {
  display: grid;
  gap: 0.45rem;
}

.ek-detail-word {
  display: grid;
  gap: 0.15rem;
  padding: 0.45rem 0.55rem;
  border-radius: 0.65rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.ek-detail-word__en {
  font-weight: 800;
  color: #e5e7eb;
  font-size: 0.92rem;
}

.ek-detail-word__ja {
  color: #f1f5f9;
  font-size: 0.9rem;
}

.ek-detail-word__tip {
  color: #94a3b8;
  font-size: 0.82rem;
}

.ek-detail-grammar {
  margin: 0;
  font-size: 0.88rem;
  color: #cbd5e1;
  line-height: 1.55;
  border-left: 3px solid rgba(147, 197, 253, 0.35);
  padding-left: 0.55rem;
}

.ek-detail-grammar__spot {
  display: inline-block;
  margin: 0.2rem 0;
  padding: 0.1rem 0.35rem;
  border-radius: 0.35rem;
  background: rgba(59, 130, 246, 0.25);
  color: #e0f2fe;
  font-weight: 700;
  font-size: 0.86rem;
}

.ek-detail-grammar__arrow {
  color: #94a3b8;
}

.ek-detail-grammar__ja {
  display: block;
  margin-top: 0.25rem;
}

.ek-detail__label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  color: #93c5fd;
  margin-bottom: 0.2rem;
}

.ek-kana-grid {
  display: grid;
  gap: 0.25rem;
}

.ek-kana-item {
  display: flex;
  gap: 0.5rem;
  align-items: baseline;
  font-size: 0.9rem;
}
.ek-kana-item__w {
  font-weight: 800;
  color: #e5e7eb;
}
.ek-kana-item__k {
  color: #b7c0d2;
}

.ek-modal {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 60;
}
.ek-modal.is-open {
  display: block;
}
.ek-modal__overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
}
.ek-modal__panel {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 1.5rem 1.5rem 0 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #0b1220;
  padding: 1rem;
  max-width: 46rem;
  margin: 0 auto;
}
.ek-modal__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.ek-modal__title {
  margin: 0;
  font-weight: 800;
}
.ek-modal__body {
  margin-top: 0.75rem;
}
.ek-shadowing__en {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 850;
  line-height: 1.4;
}
.ek-shadowing__split {
  margin: 0.55rem 0 0;
  color: #b7c0d2;
}

.ek-field--rate-shadow {
  margin-top: 0.85rem;
}

.ek-field--rate-shadow .ek-field__label {
  font-size: 0.82rem;
  color: #94a3b8;
}

.ek-field--rate-shadow .ek-seg {
  margin-top: 0.35rem;
}

.ek-shadowing__controls {
  margin-top: 0.65rem;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.5rem;
}

/* 設定行は常に縦積み（横4列だと難易度ボタンが潰れて重なる） */

.ek-toggle {
  justify-content: flex-start;
}