:root {
  color-scheme: light;
  --bg: #f4eee1;
  --bg-elevated: #f9f4e9;
  --bg-card: #fbf7ee;
  --bg-soft: #f1e9d8;
  --bg-tile: #f8f2e5;
  --border: rgba(62, 54, 38, 0.16);
  --border-strong: rgba(62, 54, 38, 0.34);
  --text: #2c2a24;
  --text-muted: #6b6455;
  --text-faint: #736c5a;
  --accent: #c14a2a;
  --accent-soft: rgba(193, 74, 42, 0.08);
  --accent-2: #41566f;
  --accent-3: #a07a1c;
  --danger: #b3382c;
  --success: #48763f;
  --shadow: 0 10px 26px rgba(74, 62, 40, 0.09);
  --shadow-sm: 0 2px 8px rgba(74, 62, 40, 0.07);
  --radius: 14px;
  --radius-sm: 10px;
  --radius-xs: 8px;
  --font: system-ui, -apple-system, "Segoe UI", "Hiragino Kaku Gothic ProN", "Hiragino Sans", "Yu Gothic UI", Meiryo, sans-serif;
  --mincho: "Yu Mincho", YuMincho, "Hiragino Mincho ProN", "BIZ UDPMincho", serif;
  --mono: ui-monospace, "Cascadia Code", Consolas, Menlo, monospace;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  min-height: 100%;
  color: var(--text);
  font-family: var(--font);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100dvh;
  background-color: var(--bg);
  background-image: radial-gradient(900px 380px at 50% -8%, rgba(255, 252, 244, 0.85), transparent 62%);
}

::selection {
  background: rgba(193, 74, 42, 0.2);
}

button,
input {
  font: inherit;
  color: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

button:focus-visible,
.choice-btn:focus-visible,
.tile:focus-visible,
.memory-cell:focus-visible,
.order-cell:focus-visible,
.find-cell:focus-visible,
.compare-btn:focus-visible,
.color-btn:focus-visible,
.diff-mode-btn:focus-visible {
  outline: 2px solid rgba(193, 74, 42, 0.85);
  outline-offset: 2px;
}

#app {
  width: min(980px, calc(100% - 1.75rem));
  margin: 0 auto;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: 1rem 0 max(2rem, env(safe-area-inset-bottom));
}


.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.85rem;
  margin: 0 0 1.35rem;
  padding: 0.6rem 0.85rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  background: rgba(249, 244, 233, 0.94);
  border: 1px solid var(--border);
  border-top: none;
  box-shadow: var(--shadow-sm);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.15rem 0.35rem 0.15rem 0.15rem;
  border-radius: var(--radius-xs);
  transition: opacity 0.2s var(--ease);
}

.logo:hover {
  opacity: 0.85;
}

.logo-mark {
  width: 2.35rem;
  height: 2.35rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 2.5px solid var(--accent);
  color: var(--accent);
  background: transparent;
  font-family: var(--mincho);
  font-weight: 700;
  font-size: 1.05rem;
  transform: rotate(-8deg);
}

.logo-text {
  font-family: var(--mincho);
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: 1.02rem;
  white-space: nowrap;
}

.topbar-meta {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.36rem 0.72rem;
  border-radius: 999px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 500;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.pill strong {
  color: var(--text);
  font-family: var(--mono);
  font-weight: 700;
}

.pill.accent {
  border-color: rgba(193, 74, 42, 0.4);
  background: var(--accent-soft);
  color: var(--accent);
}

.pill.accent strong {
  color: var(--accent);
}

.btn-pill {
  cursor: pointer;
}

.btn-pill:hover {
  border-color: var(--border-strong);
  color: var(--text);
  background: var(--bg-elevated);
}

.screen {
  flex: 1;
}

.screen.screen-in {
  animation: screenIn 0.4s var(--ease);
}

@keyframes screenIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.footer {
  margin-top: 2.25rem;
  text-align: center;
  color: var(--text-faint);
  font-size: 0.76rem;
  letter-spacing: 0.02em;
}


.hero {
  display: grid;
  gap: 1.25rem;
  margin-bottom: 1.35rem;
}

.hero-card {
  padding: 1.75rem 1.6rem 1.6rem;
  border-radius: var(--radius);
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.hero-date {
  margin: 0 0 0.35rem;
  font-family: var(--mincho);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--accent);
}

.hero-card h1 {
  margin: 0 0 0.5rem;
  font-family: var(--mincho);
  font-size: clamp(1.5rem, 3.4vw, 1.95rem);
  letter-spacing: 0.02em;
  font-weight: 600;
  line-height: 1.3;
  color: var(--text);
}

.hero-card > p {
  margin: 0;
  color: var(--text-muted);
  max-width: 40rem;
  font-size: 0.95rem;
  line-height: 1.7;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
  margin-top: 1.35rem;
}

.stat {
  padding: 0.95rem 0.9rem;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  transition: border-color 0.2s;
}

.stat:hover {
  border-color: rgba(193, 74, 42, 0.35);
}

.stat .label {
  display: block;
  color: var(--text-faint);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  margin-bottom: 0.3rem;
}

.stat .value {
  font-family: var(--mono);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.stat .value.accent {
  color: var(--accent);
}

.stat .value.warn {
  color: var(--accent-3);
}


.week-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.15rem;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border-strong);
  background: var(--bg-elevated);
}

.week-label {
  font-family: var(--mincho);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.week-stamps {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.wstamp {
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  border: 2px dashed rgba(62, 54, 38, 0.28);
  display: grid;
  place-items: center;
  font-family: var(--mincho);
  font-size: 0.88rem;
  font-weight: 600;
  color: transparent;
}

.wstamp.on {
  border: 2.5px solid rgba(193, 74, 42, 0.75);
  color: rgba(193, 74, 42, 0.9);
}

.wstamp.on:nth-child(odd) {
  transform: rotate(-7deg);
}

.wstamp.on:nth-child(even) {
  transform: rotate(5deg);
}

.wstamp.today {
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.grid-2 {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 1rem;
}

@media (max-width: 780px) {
  .grid-2,
  .hero-stats {
    grid-template-columns: 1fr;
  }

  .topbar {
    border-radius: 0 0 12px 12px;
  }

  .logo-text {
    font-size: 0.92rem;
  }
}

.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.2rem;
  box-shadow: var(--shadow-sm);
}

.panel h2 {
  margin: 0 0 0.95rem;
  font-family: var(--mincho);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.panel h2::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
  flex-shrink: 0;
}

.muted {
  color: var(--text-muted);
}

.faint {
  color: var(--text-faint);
  font-size: 0.88rem;
}

.stack {
  display: grid;
  gap: 1rem;
}


.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.15rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  min-height: 2.85rem;
  padding: 0.7rem 1.35rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  transition: transform 0.15s var(--ease), background 0.2s, border-color 0.2s, color 0.2s;
  border: 1px solid transparent;
}

.btn:active {
  transform: translateY(1px);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.btn-primary {
  background: var(--text);
  color: var(--bg-elevated);
}

.btn-primary:hover:not(:disabled) {
  background: #403c32;
}

.btn-secondary {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text);
}

.btn-secondary:hover:not(:disabled) {
  background: rgba(62, 54, 38, 0.05);
  border-color: var(--text-muted);
}

.btn-ghost {
  color: var(--text-muted);
  padding-inline: 0.9rem;
}

.btn-ghost:hover:not(:disabled) {
  color: var(--text);
  background: rgba(62, 54, 38, 0.05);
}


.game-list {
  display: grid;
  gap: 0.55rem;
}

.game-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.85rem;
  align-items: center;
  padding: 0.9rem 0.95rem;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  text-align: left;
  transition: border-color 0.2s, background 0.2s, transform 0.15s var(--ease);
}

.game-item:hover {
  border-color: rgba(193, 74, 42, 0.4);
  background: #fdfaf2;
  transform: translateY(-1px);
}

.game-icon {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  background: var(--bg-soft);
  border: 1px solid var(--border);
}

.game-item h3 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 650;
}

.game-item p {
  margin: 0.18rem 0 0;
  color: var(--text-faint);
  font-size: 0.82rem;
  line-height: 1.45;
}

.chev {
  color: var(--text-faint);
  font-size: 1.15rem;
  opacity: 0.7;
  transition: transform 0.15s, color 0.15s;
}

.game-item:hover .chev {
  color: var(--accent);
  transform: translateX(2px);
  opacity: 1;
}


.history-list {
  display: grid;
  gap: 0.45rem;
  max-height: 280px;
  overflow: auto;
  padding-right: 0.2rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(193, 74, 42, 0.4) transparent;
}

.history-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.65rem 0.8rem;
  border-radius: var(--radius-xs);
  background: var(--bg-elevated);
  border: 1px solid transparent;
  font-size: 0.88rem;
  transition: border-color 0.15s;
}

.history-row:hover {
  border-color: var(--border);
}

.history-row .score {
  font-family: var(--mono);
  font-weight: 700;
  color: var(--accent);
}

.bar {
  width: 72px;
  height: 7px;
  border-radius: 999px;
  background: rgba(62, 54, 38, 0.1);
  overflow: hidden;
}

.bar > span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--accent);
}

.empty-state {
  color: var(--text-faint);
  font-size: 0.9rem;
  padding: 0.65rem 0.15rem;
}


.session-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.session-head h1 {
  margin: 0;
  font-family: var(--mincho);
  font-size: clamp(1.2rem, 3vw, 1.4rem);
  letter-spacing: 0.02em;
  font-weight: 600;
}

.progress-track {
  display: flex;
  gap: 0.35rem;
  margin: 0.65rem 0 1.15rem;
}

.progress-dot {
  flex: 1;
  height: 5px;
  border-radius: 999px;
  background: rgba(62, 54, 38, 0.14);
  overflow: hidden;
  transition: background 0.25s var(--ease);
}

.progress-dot.done {
  background: var(--accent);
}

.progress-dot.current {
  background: rgba(193, 74, 42, 0.55);
  animation: pulseDot 1.4s ease-in-out infinite;
}

@keyframes pulseDot {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.55;
  }
}

.game-stage {
  min-height: 420px;
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.3rem 1.2rem;
  box-shadow: var(--shadow-sm);
}

.game-toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.95rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border);
}

.game-toolbar h2 {
  margin: 0;
  font-family: var(--mincho);
  font-size: 1.08rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.metric {
  font-size: 0.78rem;
  color: var(--text-muted);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.32rem 0.68rem;
}

.metric strong {
  color: var(--text);
  font-family: var(--mono);
}

.prompt {
  text-align: center;
  color: var(--text-muted);
  margin: 0.25rem 0 1rem;
  min-height: 1.5em;
  font-size: 0.95rem;
}

.prompt strong {
  color: var(--text);
}

.center-stage {
  flex: 1;
  display: grid;
  place-items: center;
  min-height: 260px;
}


.memory-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.7rem;
  width: min(320px, 100%);
}

.memory-cell {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  background: var(--bg-tile);
  border: 1.5px solid var(--border);
  box-shadow: 0 1px 0 rgba(62, 54, 38, 0.06);
  transition: transform 0.12s var(--ease), background 0.12s, border-color 0.12s;
}

.memory-cell:hover:not(:disabled) {
  border-color: var(--border-strong);
}

.memory-cell.lit {
  background: var(--accent);
  border-color: #9c3a1e;
  box-shadow: 0 2px 10px rgba(193, 74, 42, 0.35);
  transform: scale(1.04);
}

.memory-cell:disabled {
  cursor: default;
}


.math-display {
  text-align: center;
}

.math-q {
  font-family: var(--mono);
  font-size: clamp(2rem, 8vw, 3.2rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  margin: 0 0 1.25rem;
  color: var(--text);
}

.math-choices {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
  width: min(420px, 100%);
  margin: 0 auto;
}

.choice-btn {
  min-height: 3.5rem;
  border-radius: var(--radius-sm);
  background: var(--bg-tile);
  border: 1.5px solid var(--border);
  font-family: var(--mono);
  font-size: 1.25rem;
  font-weight: 700;
  transition: background 0.15s, border-color 0.15s, transform 0.12s;
}

.choice-btn:hover:not(:disabled) {
  border-color: rgba(193, 74, 42, 0.5);
  background: #fdfaf2;
  transform: translateY(-1px);
}

.choice-btn.correct {
  border-color: rgba(72, 118, 63, 0.7);
  background: rgba(72, 118, 63, 0.12);
  color: var(--success);
}

.choice-btn.wrong {
  border-color: rgba(179, 56, 44, 0.65);
  background: rgba(179, 56, 44, 0.1);
  color: var(--danger);
}


.stroop-help {
  line-height: 1.55;
}

.stroop-word {
  font-size: clamp(2.6rem, 11vw, 4.2rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0 0 0.5rem;
  user-select: none;
}

.stroop-feedback {
  min-height: 2.6em;
  margin: 0.2rem 0 0.9rem;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.45;
}

.stroop-feedback.ok {
  color: var(--success);
  font-weight: 600;
}

.stroop-feedback.ng {
  color: var(--danger);
  font-weight: 600;
}

.color-choices {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
  width: min(420px, 100%);
}

.color-btn {
  min-height: 3.5rem;
  border-radius: var(--radius-sm);
  border: 1.5px solid rgba(40, 32, 20, 0.25);
  font-weight: 700;
  color: #241f16;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.55rem 0.75rem;
  box-shadow: 0 1px 0 rgba(62, 54, 38, 0.08);
  transition: filter 0.12s, transform 0.12s;
}

.color-btn-swatch {
  width: 1.15rem;
  height: 1.15rem;
  border-radius: 0.3rem;
  border: 1.5px solid rgba(40, 32, 20, 0.3);
  background: currentColor;
  flex-shrink: 0;
}

.color-btn-label {
  font-size: 1.05rem;
}

.color-btn.red {
  background: #dd6a55;
}
.color-btn.red .color-btn-swatch {
  background: #c0392f;
}
.color-btn.blue {
  background: #6f9ed2;
}
.color-btn.blue .color-btn-swatch {
  background: #2f6bb0;
}
.color-btn.green {
  background: #7cab68;
}
.color-btn.green .color-btn-swatch {
  background: #3f7d3c;
}
.color-btn.yellow {
  background: #e6bc47;
}
.color-btn.yellow .color-btn-swatch {
  background: #b08514;
}

.color-btn:hover:not(:disabled) {
  filter: brightness(1.05);
  transform: translateY(-1px);
}

.color-btn:disabled {
  opacity: 0.55;
  cursor: default;
}


.spatial-board {
  display: grid;
  grid-template-columns: repeat(var(--sp-cols, 4), 1fr);
  gap: 0.5rem;
  width: min(360px, 100%);
}

.spatial-board.sp-md {
  width: min(400px, 100%);
  gap: 0.42rem;
}

.spatial-board.sp-lg {
  width: min(440px, 100%);
  gap: 0.32rem;
}

.spatial-board.sp-md .tile {
  border-radius: 9px;
  font-size: 1.3rem;
}

.spatial-board.sp-lg .tile {
  border-radius: 7px;
  font-size: 1.05rem;
}

.tile {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  background: var(--bg-tile);
  border: 1.5px solid var(--border);
  display: grid;
  place-items: center;
  font-size: 1.7rem;
  transition: border-color 0.15s, transform 0.12s, background 0.15s;
  box-shadow: 0 1px 0 rgba(62, 54, 38, 0.06);
}

.tile:hover:not(:disabled) {
  border-color: rgba(193, 74, 42, 0.4);
}

.tile.selected {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.tile.flash {
  background: var(--accent-2);
  border-color: #33455c;
  color: #f4eee1;
}

.tile.miss {
  border-color: var(--danger);
  background: rgba(179, 56, 44, 0.1);
}


.reaction-pad {
  width: min(360px, 100%);
  aspect-ratio: 1;
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 1.5rem;
  border: 1.5px solid var(--border-strong);
  background: var(--bg-tile);
  transition: background 0.18s, border-color 0.18s, transform 0.1s;
  user-select: none;
  touch-action: manipulation;
  box-shadow: var(--shadow-sm);
}

.reaction-pad.wait {
  background: #f2ddd2;
  border-color: rgba(193, 74, 42, 0.6);
}

.reaction-pad.ready {
  background: #e2ead4;
  border-color: rgba(72, 118, 63, 0.65);
  animation: readyPulse 0.9s ease-in-out infinite;
}

@keyframes readyPulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.015);
  }
}

.reaction-pad.done {
  background: var(--bg-tile);
}

.reaction-pad .big {
  font-family: var(--mincho);
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 0.4rem;
}

.reaction-pad .sub {
  color: var(--text-muted);
  margin: 0;
}

.reaction-pad .rt {
  font-family: var(--mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--accent);
  margin: 0.4rem 0;
}


.result-grid {
  display: grid;
  gap: 0.55rem;
  margin: 1rem 0 1.25rem;
}

.result-row {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) 0.7fr auto;
  gap: 0.7rem;
  align-items: center;
  padding: 0.8rem 0.95rem;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
}

.result-row .name {
  font-weight: 600;
  font-size: 0.9rem;
}

.result-row .pts {
  font-family: var(--mono);
  font-weight: 700;
  text-align: right;
  color: var(--accent);
}

.total-score {
  position: relative;
  text-align: center;
  padding: 1.7rem 1rem 1.5rem;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1.5px solid var(--border-strong);
  outline: 1px solid var(--border);
  outline-offset: -7px;
  margin-bottom: 1rem;
}

.total-score .label {
  color: var(--text-muted);
  font-family: var(--mincho);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.22em;
}

.total-score .num {
  font-family: var(--mono);
  font-size: clamp(3rem, 11vw, 4.2rem);
  font-weight: 700;
  line-height: 1.05;
  margin: 0.25rem 0;
  color: var(--text);
}

.total-score .grade {
  font-family: var(--mincho);
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.08em;
}

.hanko {
  position: absolute;
  top: 0.85rem;
  right: 1rem;
  width: 3.6rem;
  height: 3.6rem;
  border: 3px solid rgba(193, 74, 42, 0.8);
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--mincho);
  font-size: 1.65rem;
  font-weight: 600;
  color: rgba(193, 74, 42, 0.85);
  transform: rotate(-11deg);
  animation: stampIn 0.45s var(--ease) 0.25s backwards;
  pointer-events: none;
}

@keyframes stampIn {
  0% {
    opacity: 0;
    transform: rotate(-22deg) scale(1.9);
  }
  60% {
    opacity: 1;
    transform: rotate(-10deg) scale(0.95);
  }
  100% {
    opacity: 1;
    transform: rotate(-11deg) scale(1);
  }
}

.feedback {
  text-align: center;
  color: var(--text-muted);
  margin: 0 0 1rem;
  line-height: 1.6;
}

.overlay-msg {
  animation: pop 0.38s var(--ease);
}

@keyframes pop {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.countdown {
  font-family: var(--mono);
  font-size: clamp(3.5rem, 14vw, 5rem);
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.04em;
}

.flash-ok {
  animation: flashOk 0.35s var(--ease);
}

@keyframes flashOk {
  0% {
    box-shadow: inset 0 0 0 0 rgba(72, 118, 63, 0);
  }
  40% {
    box-shadow: inset 0 0 0 3px rgba(72, 118, 63, 0.5);
  }
  100% {
    box-shadow: inset 0 0 0 0 rgba(72, 118, 63, 0);
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}


.tip-card {
  margin-top: 1.15rem;
  padding: 0.95rem 1.05rem;
  border-radius: var(--radius-sm);
  background: rgba(65, 86, 111, 0.06);
  border: 1px solid rgba(65, 86, 111, 0.25);
}

.tip-label {
  display: inline-block;
  font-family: var(--mincho);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--accent-2);
  margin-bottom: 0.28rem;
}

.tip-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}

.spark-wrap {
  min-height: 72px;
  padding: 0.35rem 0.15rem 0.15rem;
}

.sparkline {
  width: 100%;
  height: auto;
  display: block;
}

.spark-line {
  stroke: var(--accent);
  stroke-width: 2.4;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.spark-dot {
  fill: var(--accent);
}

.spark-meta {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  margin-top: 0.4rem;
  font-size: 0.72rem;
  color: var(--text-faint);
}

.skill-list {
  display: grid;
  gap: 0.55rem;
}

.skill-row {
  display: grid;
  grid-template-columns: 4.5rem 1fr 4.2rem;
  gap: 0.55rem;
  align-items: center;
  font-size: 0.88rem;
}

.skill-name {
  color: var(--text-muted);
}

.skill-pts {
  font-family: var(--mono);
  font-weight: 700;
  text-align: right;
  color: var(--accent);
  font-size: 0.85rem;
}


.cal-head {
  margin-bottom: 0.55rem;
}

.cal-title {
  font-family: var(--mincho);
  font-weight: 600;
  font-size: 0.95rem;
}

.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.32rem;
}

.cal-wd {
  text-align: center;
  font-size: 0.66rem;
  color: var(--text-faint);
  padding-bottom: 0.15rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.cal-cell {
  aspect-ratio: 1;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.7rem;
  font-family: var(--mono);
  color: var(--text-faint);
  border: 2px solid transparent;
  transition: transform 0.12s;
}

.cal-cell:not(.empty):hover {
  transform: scale(1.08);
}

.cal-cell.empty {
  border-color: transparent;
}

.cal-cell.lv1 {
  border-color: rgba(193, 74, 42, 0.3);
  color: var(--text-muted);
}
.cal-cell.lv2 {
  border-color: rgba(193, 74, 42, 0.5);
  color: #a34a2f;
}
.cal-cell.lv3 {
  border-color: rgba(193, 74, 42, 0.75);
  color: var(--accent);
  font-weight: 700;
}
.cal-cell.lv4 {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
}

.cal-cell.today {
  outline: 2px dashed var(--border-strong);
  outline-offset: 2px;
}

.cal-legend {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  margin-top: 0.7rem;
  justify-content: flex-end;
}

.cal-swatch {
  width: 0.78rem;
  height: 0.78rem;
  border-radius: 50%;
  border: 2px solid transparent;
}

.cal-swatch.lv1 {
  border-color: rgba(193, 74, 42, 0.3);
}
.cal-swatch.lv2 {
  border-color: rgba(193, 74, 42, 0.5);
}
.cal-swatch.lv3 {
  border-color: rgba(193, 74, 42, 0.75);
}
.cal-swatch.lv4 {
  border-color: var(--accent);
  background: var(--accent-soft);
}


.badge-summary {
  margin: -0.35rem 0 0.65rem;
  font-size: 0.8rem;
}

.badge-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.45rem;
}

.badge {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 0.55rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  font-size: 0.76rem;
  font-weight: 600;
  transition: border-color 0.15s, transform 0.15s;
}

.badge.on {
  border-color: rgba(160, 122, 28, 0.5);
  background: rgba(160, 122, 28, 0.08);
}

.badge.on:hover {
  transform: translateY(-1px);
}

.badge.off {
  opacity: 0.38;
  filter: grayscale(0.7);
}

.badge-icon {
  font-size: 1.05rem;
}


.settings-panel h2 {
  margin-bottom: 1rem;
}

.settings-panel h2::before {
  display: none;
}

.setting-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--border);
}

.setting-block {
  padding: 1.05rem 0 0.25rem;
}

.toggle {
  width: 3rem;
  height: 1.7rem;
  border-radius: 999px;
  background: rgba(62, 54, 38, 0.14);
  border: 1px solid var(--border);
  position: relative;
  flex-shrink: 0;
  transition: background 0.2s, border-color 0.2s;
}

.toggle.on {
  background: var(--accent);
  border-color: #9c3a1e;
}

.toggle-knob {
  position: absolute;
  top: 2px;
  left: 2px;
  width: calc(1.7rem - 6px);
  height: calc(1.7rem - 6px);
  border-radius: 50%;
  background: #fdfaf3;
  transition: transform 0.22s var(--ease);
  box-shadow: 0 1px 3px rgba(40, 32, 20, 0.3);
}

.toggle.on .toggle-knob {
  transform: translateX(1.25rem);
}

.danger-text {
  color: var(--danger) !important;
}

.new-best {
  margin-top: 0.5rem;
  font-family: var(--mincho);
  font-weight: 600;
  color: var(--accent-3);
  font-size: 0.95rem;
}

.pts .delta {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  margin-top: 0.1rem;
}

.pts .delta.up {
  color: var(--success);
}
.pts .delta.down {
  color: var(--danger);
}


.toast {
  position: fixed;
  left: 50%;
  bottom: max(1.5rem, env(safe-area-inset-bottom));
  transform: translateX(-50%) translateY(120%);
  z-index: 100;
  padding: 0.75rem 1.25rem;
  border-radius: 999px;
  background: var(--bg-card);
  border: 1px solid rgba(193, 74, 42, 0.45);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--shadow);
  opacity: 0;
  transition: transform 0.32s var(--ease), opacity 0.32s var(--ease);
  pointer-events: none;
  max-width: calc(100% - 2rem);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}


.confetti-layer {
  pointer-events: none;
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 2;
}

.confetti {
  position: absolute;
  top: -10px;
  width: 8px;
  height: 12px;
  border-radius: 2px;
  opacity: 0.85;
  animation: confettiFall linear forwards;
}

@keyframes confettiFall {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(420px) rotate(540deg);
    opacity: 0;
  }
}


.order-grid {
  display: grid;
  grid-template-columns: repeat(var(--ord-cols, 3), 1fr);
  gap: 0.6rem;
  width: min(360px, 100%);
}

.order-cell {
  aspect-ratio: 1;
  border-radius: var(--radius-sm);
  background: var(--bg-tile);
  border: 1.5px solid var(--border);
  font-family: var(--mono);
  font-size: 1.4rem;
  font-weight: 700;
  transition: background 0.12s, border-color 0.12s, transform 0.1s, opacity 0.15s;
  box-shadow: 0 1px 0 rgba(62, 54, 38, 0.06);
}

.order-cell:hover:not(:disabled) {
  border-color: rgba(193, 74, 42, 0.45);
  transform: translateY(-1px);
}

.order-cell.done {
  background: var(--accent-soft);
  border-color: rgba(193, 74, 42, 0.45);
  color: var(--accent);
  opacity: 0.6;
}

.order-cell.miss {
  border-color: var(--danger);
  background: rgba(179, 56, 44, 0.12);
  animation: shake 0.22s var(--ease);
}

@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  30% {
    transform: translateX(-4px);
  }
  70% {
    transform: translateX(4px);
  }
}


.compare-stage {
  width: min(440px, 100%);
  text-align: center;
}

.compare-pick {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0.75rem;
  align-items: center;
}

.compare-vs {
  font-family: var(--mincho);
  font-weight: 600;
  color: var(--text-faint);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
}

.compare-stmt {
  font-family: var(--mono);
  font-size: clamp(1.6rem, 6vw, 2.4rem);
  font-weight: 700;
  margin: 0 0 1.25rem;
  letter-spacing: 0.02em;
}

.compare-bool {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.7rem;
}

.compare-btn {
  min-height: 4.2rem;
  border-radius: var(--radius-sm);
  background: var(--bg-tile);
  border: 1.5px solid var(--border);
  font-family: var(--mono);
  font-size: clamp(1.35rem, 5vw, 1.85rem);
  font-weight: 700;
  transition: background 0.15s, border-color 0.15s, transform 0.1s;
  padding: 0.75rem;
}

.compare-btn:hover:not(:disabled) {
  border-color: rgba(193, 74, 42, 0.5);
  background: #fdfaf2;
  transform: translateY(-1px);
}

.compare-btn.yes:hover:not(:disabled) {
  border-color: rgba(72, 118, 63, 0.55);
}

.compare-btn.no:hover:not(:disabled) {
  border-color: rgba(179, 56, 44, 0.5);
}

.compare-btn.correct {
  border-color: rgba(72, 118, 63, 0.7);
  background: rgba(72, 118, 63, 0.12);
  color: var(--success);
}

.compare-btn.wrong {
  border-color: rgba(179, 56, 44, 0.65);
  background: rgba(179, 56, 44, 0.1);
  color: var(--danger);
}


.find-grid {
  display: grid;
  grid-template-columns: repeat(var(--find-cols, 4), 1fr);
  gap: 0.48rem;
  width: min(380px, 100%);
}

.find-cell {
  aspect-ratio: 1;
  border-radius: 9px;
  background: var(--bg-tile);
  border: 1.5px solid var(--border);
  font-size: clamp(1.15rem, 5vw, 1.6rem);
  transition: border-color 0.12s, background 0.12s, transform 0.1s;
  line-height: 1;
  box-shadow: 0 1px 0 rgba(62, 54, 38, 0.06);
}

.find-cell:hover:not(:disabled) {
  border-color: var(--border-strong);
  transform: scale(1.04);
}

.find-cell.correct {
  border-color: rgba(72, 118, 63, 0.75);
  background: rgba(72, 118, 63, 0.14);
}

.find-cell.wrong {
  border-color: rgba(179, 56, 44, 0.65);
  background: rgba(179, 56, 44, 0.1);
}

.find-cell.reveal {
  border-color: rgba(160, 122, 28, 0.8);
  background: rgba(160, 122, 28, 0.12);
}

.find-sample {
  font-size: 1.35em;
  font-weight: 700;
  vertical-align: middle;
  margin-left: 0.15rem;
}


.daily-set {
  margin-top: 1.2rem;
  padding: 1rem 1.05rem;
  border-radius: var(--radius-sm);
  background: rgba(193, 74, 42, 0.04);
  border: 1px solid rgba(193, 74, 42, 0.25);
}

.daily-set-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 0.65rem;
  flex-wrap: wrap;
}

.daily-slots {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.4rem;
}

.daily-slots li {
  display: grid;
  grid-template-columns: 1.5rem 1.55rem 1fr;
  gap: 0.5rem;
  align-items: start;
  padding: 0.55rem 0.55rem;
  border-radius: var(--radius-xs);
  background: var(--bg-card);
  border: 1px solid var(--border);
  font-size: 0.88rem;
  transition: border-color 0.15s, background 0.15s;
}

.daily-slots li:hover {
  border-color: rgba(193, 74, 42, 0.35);
  background: #fdfaf2;
}

.daily-slots strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 650;
}

.daily-slots .faint {
  display: block;
  font-size: 0.78rem;
  margin-top: 0.12rem;
  line-height: 1.4;
}

.slot-n {
  font-family: var(--mono);
  font-weight: 700;
  color: var(--accent);
  font-size: 0.82rem;
  line-height: 1.5;
  width: 1.35rem;
  height: 1.35rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1.5px solid rgba(193, 74, 42, 0.4);
}

.slot-icon {
  font-size: 1.08rem;
  line-height: 1.4;
}


.diff-mode-list {
  display: grid;
  gap: 0.4rem;
}

.diff-mode-btn {
  text-align: left;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius-xs);
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.88rem;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}

.diff-mode-btn:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

.diff-mode-btn.on {
  border-color: rgba(193, 74, 42, 0.55);
  background: var(--accent-soft);
  color: var(--accent);
}

#daily-count-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

#daily-count-row .diff-mode-btn {
  min-width: 2.7rem;
  text-align: center;
  padding-inline: 0.75rem;
}

@media (max-width: 780px) {
  .badge-grid {
    grid-template-columns: 1fr 1fr;
  }

  .skill-row {
    grid-template-columns: 3.8rem 1fr 3.6rem;
  }

  .result-row {
    grid-template-columns: minmax(0, 1.2fr) 0.55fr auto;
  }

  .hero-card {
    padding: 1.4rem 1.15rem 1.25rem;
  }

  .week-row {
    gap: 0.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}


.tutorial-overlay {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 1.25rem;
  background: rgba(44, 40, 30, 0.45);
  backdrop-filter: blur(3px);
  -webkit-backdrop-filter: blur(3px);
  animation: screenIn 0.3s var(--ease);
}
.tutorial-card {
  width: min(440px, 100%);
  max-height: min(90dvh, 640px);
  overflow: auto;
  box-shadow: var(--shadow);
  border-color: rgba(193, 74, 42, 0.3);
}
.tutorial-card h2 {
  margin: 0.25rem 0 0.85rem;
  font-family: var(--mincho);
  font-size: 1.25rem;
  letter-spacing: 0.02em;
}
.tutorial-card h2::before {
  display: none;
}
.tutorial-steps {
  margin: 0 0 0.85rem;
  padding-left: 1.2rem;
  color: var(--text-muted);
  font-size: 0.92rem;
  line-height: 1.6;
}
.tutorial-steps li {
  margin-bottom: 0.45rem;
}
.tutorial-steps strong {
  color: var(--text);
}


.about-body h3 {
  margin: 0.95rem 0 0.25rem;
  font-family: var(--mincho);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--accent-2);
}
.about-body h3:first-child {
  margin-top: 0.25rem;
}
.about-body p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.65;
}
.about-body a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.about-body a:hover {
  opacity: 0.75;
}

@media (max-width: 360px) {
  .logo-mark {
    width: 2rem;
    height: 2rem;
    font-size: 0.9rem;
  }
  .week-row {
    padding: 0.6rem 0.65rem;
    gap: 0.5rem;
  }
  .week-stamps {
    gap: 0.3rem;
  }
  .wstamp {
    width: 1.55rem;
    height: 1.55rem;
    font-size: 0.72rem;
  }
}