:root {
  color-scheme: light;
  --ink: #10232b;
  --muted: #52656d;
  --page: #f5f8e7;
  --panel: #ffffff;
  --line: #cbd8d6;
  --ocean: #138aa5;
  --ocean-dark: #0f596b;
  --sun: #f0c84b;
  --coral: #e85f4b;
  --shadow: 0 22px 60px rgb(16 35 43 / 16%);
  --radius: 8px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    linear-gradient(180deg, rgb(19 138 165 / 18%), transparent 18rem),
    var(--page);
}

body,
button,
input {
  font: inherit;
}

button,
input {
  color: inherit;
}

.skip-link {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 20;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius);
  background: var(--ink);
  color: #fff;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: translateY(0);
}

.app-shell {
  display: grid;
  gap: 1rem;
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1rem 0 2rem;
}

.game-stage,
.leaderboard {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--panel), transparent 5%);
  box-shadow: var(--shadow);
}

.game-stage {
  min-height: calc(100vh - 9rem);
  padding: clamp(0.85rem, 2vw, 1.25rem);
}

.topbar,
.score-strip,
.play-layout,
.section-heading,
.score-row {
  display: flex;
}

.topbar {
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.eyebrow {
  margin: 0 0 0.25rem;
  color: var(--coral);
  font-size: 0.75rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
  line-height: 1;
}

h1 {
  font-size: clamp(2rem, 6vw, 4.75rem);
}

h2 {
  font-size: clamp(1.4rem, 3vw, 2.2rem);
}

.score-strip {
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.score-strip span,
.status-box,
.last-run {
  display: grid;
  min-width: 7.25rem;
  gap: 0.15rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--muted);
  font-weight: 800;
}

.score-strip strong,
.status-box strong,
.last-run strong {
  color: var(--ink);
  font-size: 1.6rem;
  line-height: 1;
}

.play-layout {
  align-items: stretch;
  gap: 1rem;
}

.canvas-wrap {
  flex: 1 1 auto;
  overflow: hidden;
  min-height: 420px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #b9edf4;
}

canvas {
  display: block;
  width: 100%;
  height: clamp(420px, 64vh, 620px);
  cursor: pointer;
}

.control-panel {
  display: grid;
  align-content: start;
  gap: 0.9rem;
  width: min(100%, 285px);
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.field {
  display: grid;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
}

input {
  width: 100%;
  min-height: 2.75rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  padding: 0.65rem 0.75rem;
}

button {
  min-height: 2.85rem;
  border-radius: var(--radius);
  font-weight: 900;
  cursor: pointer;
}

.primary-action {
  border: 1px solid var(--ocean-dark);
  background: var(--ocean);
  color: #fff;
}

.primary-action:hover,
.primary-action:focus-visible {
  background: var(--ocean-dark);
}

.ghost-action {
  border: 1px solid var(--line);
  background: var(--panel);
}

.ghost-action:hover,
.ghost-action:focus-visible {
  border-color: var(--coral);
}

input:focus,
button:focus-visible,
canvas:focus-visible,
a:focus-visible {
  outline: 3px solid rgb(232 95 75 / 35%);
  outline-offset: 2px;
}

.hint {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
}

.leaderboard {
  padding: clamp(1rem, 3vw, 1.35rem);
}

.section-heading {
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

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

.score-row,
.empty-score {
  min-height: 3rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.score-row {
  display: grid;
  align-items: center;
  grid-template-columns: auto 1fr auto;
  gap: 0.75rem;
  padding: 0.7rem 0.85rem;
}

.score-row span:first-child {
  color: var(--coral);
  font-weight: 900;
}

.score-row strong {
  overflow-wrap: anywhere;
}

.score-row span:last-child {
  min-width: 3rem;
  color: var(--ocean-dark);
  font-weight: 900;
  text-align: right;
}

.empty-score {
  display: flex;
  align-items: center;
  padding: 0.8rem;
  color: var(--muted);
  font-weight: 800;
}

@media (max-width: 850px) {
  .topbar,
  .play-layout,
  .section-heading {
    align-items: stretch;
    flex-direction: column;
  }

  .control-panel {
    width: 100%;
  }

  .canvas-wrap {
    min-height: 360px;
  }

  canvas {
    height: clamp(360px, 56vh, 520px);
  }
}