:root {
  color-scheme: light;
  --ink: #252331;
  --muted: #666174;
  --paper: #fffdf7;
  --panel: #ffffff;
  --line: #e8e0d1;
  --blue: #4d5fcb;
  --red: #d94f5c;
  --teal: #2b8a8f;
  --yellow: #f4bd45;
  --green: #3d8b5f;
  --shadow: 0 16px 42px rgba(37, 35, 49, 0.12);
  font-family: "Hiragino Sans", "Yu Gothic", "Meiryo", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(135deg, rgba(77, 95, 203, 0.12), transparent 34%),
    linear-gradient(225deg, rgba(244, 189, 69, 0.14), transparent 38%),
    var(--paper);
}

button,
input {
  font: inherit;
}

a {
  color: var(--blue);
  font-weight: 800;
}

.site-header,
.site-footer {
  background: rgba(255, 253, 247, 0.9);
  border-bottom: 1px solid var(--line);
}

.site-footer {
  border-top: 1px solid var(--line);
  border-bottom: 0;
}

.nav,
.footer-inner,
.page {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.nav,
.footer-inner {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand,
.nav-links a,
.footer-links a {
  color: var(--ink);
  text-decoration: none;
}

.brand {
  font-weight: 900;
}

.nav-links,
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page {
  padding: 34px 0 72px;
}

.game-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 18px;
  align-items: start;
}

.game-panel,
.side-panel,
.note-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
}

.game-panel {
  overflow: hidden;
}

.game-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 18px;
  border-bottom: 1px solid var(--line);
}

.game-kicker {
  margin: 0 0 7px;
  color: var(--blue);
  font-size: 0.84rem;
  font-weight: 900;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: clamp(2rem, 5vw, 4.2rem);
  line-height: 1.02;
  letter-spacing: 0;
}

.lead {
  max-width: 48em;
  margin-top: 12px;
  color: var(--muted);
  font-weight: 700;
  line-height: 1.85;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, auto);
  gap: 8px;
  align-items: start;
}

.stat {
  min-width: 76px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  background: #fff;
  text-align: center;
}

.stat span {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
}

.stat strong {
  display: block;
  margin-top: 2px;
  font-size: 1.15rem;
  line-height: 1;
}

.playfield {
  min-height: 420px;
  padding: 18px;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 0 18px 18px;
}

.primary-btn,
.ghost-btn {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 15px;
  cursor: pointer;
  font-weight: 900;
}

.primary-btn {
  color: #fff;
  background: var(--blue);
  border-color: var(--blue);
}

.ghost-btn {
  color: var(--ink);
  background: #fff;
}

.message {
  min-height: 28px;
  color: var(--teal);
  font-weight: 900;
  line-height: 1.6;
}

.side-panel {
  display: grid;
  gap: 14px;
  padding: 18px;
}

.side-panel h2,
.notes h2 {
  font-size: clamp(1.45rem, 3vw, 2.1rem);
  line-height: 1.14;
}

.side-panel p,
.side-panel li,
.note-card p,
.note-card li {
  color: var(--muted);
  font-weight: 700;
  line-height: 1.85;
}

ul {
  margin: 0;
  padding-left: 1.3em;
}

.notes {
  display: grid;
  gap: 18px;
  margin-top: 34px;
}

.note-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.note-card {
  padding: 18px;
}

.note-card h3 {
  margin-bottom: 9px;
  font-size: 1.05rem;
  line-height: 1.45;
}

.canvas-wrap {
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #151927;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.game-page-thumb {
  display: block;
  width: min(100%, 420px);
  aspect-ratio: 1;
  margin: 0 auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  object-fit: cover;
  box-shadow: var(--shadow);
}

.micro-stage {
  min-height: 360px;
  display: grid;
  gap: 16px;
  align-content: center;
}

.micro-board {
  position: relative;
  min-height: 320px;
  overflow: hidden;
  border: 3px solid #252331;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(77, 95, 203, .14), transparent 38%),
    linear-gradient(225deg, rgba(244, 189, 69, .18), transparent 42%),
    #fff8ec;
}

.micro-lanes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  min-height: 320px;
}

.micro-lane {
  border-right: 1px solid rgba(37, 35, 49, .16);
}

.micro-lane:last-child {
  border-right: 0;
}

.micro-player,
.micro-item {
  position: absolute;
  left: 50%;
  display: grid;
  place-items: center;
  width: 70px;
  height: 70px;
  border: 3px solid #252331;
  border-radius: 8px;
  background: #fff;
  box-shadow: 0 8px 0 rgba(37, 35, 49, .18);
  font-size: 36px;
  font-weight: 900;
  transform: translateX(-50%);
}

.micro-player {
  bottom: 14px;
  background: #dff4e6;
}

.micro-item {
  top: 0;
  background: #fff0bd;
}

.micro-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.micro-choice,
.micro-action {
  min-height: 48px;
  border: 2px solid #252331;
  border-radius: 8px;
  padding: 10px 14px;
  color: #252331;
  background: #fff;
  box-shadow: 0 5px 0 rgba(37, 35, 49, .16);
  cursor: pointer;
  font-weight: 900;
}

.micro-choice.active,
.micro-action.active {
  color: #fff;
  background: var(--blue);
}

.stack-stage {
  min-height: 340px;
  position: relative;
  overflow: hidden;
  border: 3px solid #252331;
  border-radius: 8px;
  background: linear-gradient(180deg, #fff6d8, #f3e5cf);
}

.stack-piece {
  position: absolute;
  height: 34px;
  border: 3px solid #252331;
  border-radius: 8px;
  background: #f4bd45;
  box-shadow: 0 6px 0 rgba(37, 35, 49, .16);
}

.node-board {
  position: relative;
  min-height: 360px;
  border: 3px solid #252331;
  border-radius: 8px;
  background: #11253a;
}

.node-button {
  position: absolute;
  width: 58px;
  height: 58px;
  border: 4px solid #fff;
  border-radius: 50%;
  color: #11253a;
  background: #f4bd45;
  cursor: pointer;
  font-weight: 900;
  transform: translate(-50%, -50%);
}

.node-button.done {
  background: #3d8b5f;
}

.sort-item {
  min-height: 110px;
  display: grid;
  place-items: center;
  border: 3px solid #252331;
  border-radius: 8px;
  background: #fff8e6;
  font-size: clamp(3rem, 10vw, 6rem);
  box-shadow: 0 8px 0 rgba(37, 35, 49, .16);
}

.timing-track {
  position: relative;
  height: 96px;
  border: 3px solid #252331;
  border-radius: 8px;
  background: linear-gradient(90deg, #ffe6df, #dff4e6 44% 56%, #ffe6df);
}

.timing-zone {
  position: absolute;
  left: 44%;
  top: 10px;
  bottom: 10px;
  width: 12%;
  border: 3px dashed #252331;
  border-radius: 8px;
  background: rgba(61, 139, 95, .2);
}

.timing-marker {
  position: absolute;
  top: 50%;
  width: 54px;
  height: 54px;
  border: 3px solid #252331;
  border-radius: 50%;
  background: #f4bd45;
  transform: translate(-50%, -50%);
}

.route-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  max-width: 420px;
  margin: 0 auto;
}

.route-cell {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 2px solid #252331;
  border-radius: 8px;
  background: #fff;
  font-weight: 900;
}

.route-cell.active {
  color: #fff;
  background: var(--blue);
}

.route-cell.goal {
  background: #fff0bd;
}

@media (max-width: 920px) {
  .game-layout,
  .note-grid {
    grid-template-columns: 1fr;
  }

  .game-head,
  .nav,
  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav,
  .footer-inner {
    padding: 14px 0;
  }

  .stats {
    width: 100%;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .nav,
  .footer-inner,
  .page {
    width: min(100% - 24px, 1120px);
  }

  .playfield {
    min-height: 360px;
    padding: 12px;
  }

  .controls {
    display: grid;
    grid-template-columns: 1fr;
    padding: 0 12px 12px;
  }

  .primary-btn,
  .ghost-btn {
    width: 100%;
  }

  .stats {
    grid-template-columns: 1fr;
  }
}