:root {
  color-scheme: dark;
  --bg: #111315;
  --panel: #1b2026;
  --panel-strong: #232b33;
  --board: #10171b;
  --line: #34414a;
  --line-soft: rgba(195, 214, 224, 0.12);
  --text: #f4f7f8;
  --muted: #a7b3bb;
  --green: #84f06a;
  --green-2: #36bc73;
  --gold: #ffd166;
  --red: #ff6b6b;
  --blue: #58c7ff;
  --purple: #b48cff;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  padding: 24px;
  background:
    linear-gradient(135deg, rgba(88, 199, 255, 0.13), transparent 34%),
    linear-gradient(315deg, rgba(132, 240, 106, 0.1), transparent 38%),
    var(--bg);
  color: var(--text);
  font-family:
    "Microsoft YaHei", "PingFang SC", "Noto Sans SC", ui-sans-serif, system-ui,
    -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select {
  font: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible,
input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.app {
  width: min(100%, 1180px);
  min-height: calc(100vh - 48px);
  margin: 0 auto;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 16px;
}

.topbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-logo {
  width: clamp(48px, 8vw, 72px);
  aspect-ratio: 1;
  flex: 0 0 auto;
  filter: drop-shadow(0 0 22px rgba(132, 240, 106, 0.22));
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  position: relative;
  width: max-content;
  padding: 0 0.08em 0.08em 0;
  font-family: "STXingkai", "华文行楷", "KaiTi", "楷体", "FangSong", "仿宋", serif;
  font-size: 3.45rem;
  font-weight: 400;
  line-height: 0.92;
  letter-spacing: 0;
  color: transparent;
  background: linear-gradient(112deg, #fffbe7 0%, #ffd166 36%, #b8ff87 70%, #ecfeff 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-stroke: 1px rgba(5, 13, 10, 0.78);
  text-shadow:
    0 2px 0 rgba(3, 9, 7, 0.92),
    0 0 12px rgba(255, 209, 102, 0.22),
    0 0 28px rgba(132, 240, 106, 0.2);
}

h1::after {
  content: "";
  position: absolute;
  left: 0.08em;
  right: 0.02em;
  bottom: 0;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(255, 209, 102, 0), rgba(255, 209, 102, 0.92), rgba(132, 240, 106, 0.18));
  transform: rotate(-1.5deg);
  transform-origin: left center;
  opacity: 0.86;
}

h2 {
  font-size: 0.96rem;
  text-transform: uppercase;
}

.top-actions {
  display: flex;
  align-items: end;
  justify-content: flex-end;
  gap: 10px;
}

.home-link {
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  align-self: end;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(27, 32, 38, 0.86);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 900;
  white-space: nowrap;
  transition:
    transform 120ms ease,
    background 120ms ease,
    border-color 120ms ease;
}

.home-link:hover,
.home-link:focus-visible {
  border-color: var(--green);
  background: #2b3640;
}

.home-link:active {
  transform: translateY(1px);
}

.scoreboard {
  display: grid;
  grid-template-columns: repeat(3, minmax(86px, 1fr));
  gap: 10px;
}

.metric,
.panel,
.overlay-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(27, 32, 38, 0.86);
  box-shadow: var(--shadow);
}

.metric {
  min-height: 72px;
  padding: 11px 13px;
  text-align: right;
}

.metric span,
.stat-grid span,
.option-title {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.metric strong {
  display: block;
  margin-top: 3px;
  font-size: 1.65rem;
}

.layout {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(190px, 0.66fr) minmax(320px, 600px) minmax(220px, 0.78fr);
  align-items: stretch;
  justify-content: center;
  gap: 16px;
}

.panel {
  min-width: 0;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 9px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 22px rgba(132, 240, 106, 0.72);
}

.dot.alt {
  background: var(--blue);
  box-shadow: 0 0 22px rgba(88, 199, 255, 0.62);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.stat-grid div {
  min-height: 92px;
  padding: 16px;
  border: 1px solid rgba(195, 214, 224, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.035);
}

.stat-grid strong {
  display: block;
  margin-top: 12px;
  font-size: 1.7rem;
  line-height: 1;
}

.feed {
  margin-top: auto;
  padding: 14px;
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  background: rgba(16, 23, 27, 0.72);
}

.feed p {
  min-height: 42px;
  color: var(--text);
  font-size: 0.93rem;
  line-height: 1.45;
}

.progress-track {
  height: 8px;
  margin-top: 14px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.progress-track span {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--green), var(--blue), var(--gold));
  transition: width 180ms ease;
}

.game-shell {
  position: relative;
  width: 100%;
  align-self: center;
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: var(--board);
  box-shadow: var(--shadow);
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 22px;
  background: rgba(8, 12, 15, 0.58);
  opacity: 0;
  pointer-events: none;
  transition: opacity 150ms ease;
}

.overlay.visible {
  opacity: 1;
  pointer-events: auto;
}

.overlay-panel {
  width: min(88%, 340px);
  padding: 22px;
  text-align: center;
  backdrop-filter: blur(10px);
}

.overlay-kicker {
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.overlay-title {
  margin: 8px 0 18px;
  font-size: clamp(1.06rem, 4vw, 1.45rem);
  font-weight: 900;
  line-height: 1.15;
  overflow-wrap: anywhere;
}

.options-panel {
  justify-content: stretch;
}

.settings-top {
  display: grid;
  gap: 12px;
}

.settings-bottom {
  margin-top: auto;
  display: grid;
  gap: 10px;
}

.option-group {
  display: grid;
  gap: 7px;
}

.segmented {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 6px;
  padding: 5px;
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  background: rgba(16, 23, 27, 0.72);
}

.segmented.two-segments {
  grid-template-columns: repeat(2, 1fr);
}

.select-control {
  width: 100%;
  min-height: 42px;
  padding: 0 36px 0 12px;
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  appearance: none;
  background:
    linear-gradient(45deg, transparent 50%, var(--muted) 50%) calc(100% - 18px) 17px / 6px 6px no-repeat,
    linear-gradient(135deg, var(--muted) 50%, transparent 50%) calc(100% - 12px) 17px / 6px 6px no-repeat,
    rgba(16, 23, 27, 0.72);
  color: var(--text);
  cursor: pointer;
  font-weight: 800;
}

.select-control:hover,
.select-control:focus {
  border-color: var(--green);
  outline: none;
}

.skin-select,
.ai-select {
  position: relative;
}

.skin-select-trigger,
.skin-option,
.ai-select-trigger,
.ai-option {
  width: 100%;
  min-height: 42px;
  display: grid;
  align-items: center;
  gap: 10px;
  padding: 0 12px;
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  background: rgba(16, 23, 27, 0.72);
  color: var(--text);
  cursor: pointer;
  font-weight: 800;
  text-align: left;
}

.skin-select-trigger,
.skin-option {
  grid-template-columns: minmax(0, 1fr) minmax(82px, 42%);
}

.ai-select-trigger,
.ai-option {
  grid-template-columns: minmax(0, 1fr);
}

.skin-select-trigger::after,
.ai-select-trigger::after {
  content: "";
  position: absolute;
  right: 14px;
  top: 18px;
  width: 8px;
  height: 8px;
  border-right: 2px solid var(--muted);
  border-bottom: 2px solid var(--muted);
  transform: rotate(45deg);
  pointer-events: none;
}

.skin-select-trigger,
.ai-select-trigger {
  padding-right: 34px;
}

.skin-select-trigger:hover,
.skin-select-trigger:focus,
.skin-option:hover,
.skin-option:focus,
.ai-select-trigger:hover,
.ai-select-trigger:focus,
.ai-option:hover,
.ai-option:focus {
  border-color: var(--green);
  outline: none;
  background: #2b3640;
}

.skin-select-menu,
.ai-select-menu {
  position: absolute;
  z-index: 20;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  display: none;
  max-height: 236px;
  overflow: auto;
  padding: 6px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(16, 23, 27, 0.98);
  box-shadow: var(--shadow);
}

.skin-select[data-open="true"] .skin-select-menu,
.ai-select[data-open="true"] .ai-select-menu {
  display: grid;
  gap: 6px;
}

.ai-select-menu {
  max-height: 138px;
}

.skin-option,
.ai-option {
  min-height: 38px;
  box-shadow: none;
}

.skin-option.active,
.ai-option.active {
  border-color: var(--skin-accent, var(--green));
  background: color-mix(in srgb, var(--skin-accent, var(--green)) 16%, #10171b);
}

.skin-option-swatch {
  height: 14px;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    var(--skin-preview-start, #b8ff87),
    var(--skin-preview-mid, #84f06a),
    var(--skin-preview-end, #36bc73)
  );
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18);
}

.skin-option-swatch.bamboo {
  background: linear-gradient(90deg, #b8ff87, #84f06a, #36bc73);
}

.skin-option-swatch.neon {
  background: linear-gradient(90deg, #58c7ff, #ff4fd8, #f7ff4a);
}

.skin-option-swatch.lava {
  background: linear-gradient(90deg, #ffd166, #ff7a3d, #d83a2e);
}

.skin-option-swatch.glacier {
  background: linear-gradient(90deg, #ecfeff, #7dd3fc, #2f80ed);
}

.skin-option-swatch.candy {
  background: linear-gradient(90deg, #fff7ad, #ff7ab6, #8b5cf6);
}

.skin-option-swatch.shadow {
  background: linear-gradient(90deg, #e5e7eb, #64748b, #111827);
}

.skin-option-swatch.royal {
  background: linear-gradient(90deg, #fde68a, #c084fc, #4338ca);
}

.skin-option-swatch.circuit {
  background: linear-gradient(90deg, #d9f99d, #22d3ee, #0f766e);
}

.segment,
.primary-button,
.text-button,
.icon-button,
.pad-button {
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
  transition:
    transform 120ms ease,
    background 120ms ease,
    border-color 120ms ease,
    color 120ms ease;
}

.segment {
  min-width: 0;
  min-height: 38px;
  padding: 0 8px;
  background: transparent;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 900;
  line-height: 1.1;
  white-space: nowrap;
}

.segment.active {
  border-color: rgba(132, 240, 106, 0.56);
  background: rgba(132, 240, 106, 0.14);
  color: var(--text);
}

.option-row {
  min-height: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.035);
  color: var(--text);
  font-size: 0.94rem;
  font-weight: 800;
}

input[type="checkbox"] {
  width: 44px;
  height: 24px;
  margin: 0;
  appearance: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #10171b;
  cursor: pointer;
  position: relative;
  transition:
    background 120ms ease,
    border-color 120ms ease;
}

input[type="checkbox"]::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--muted);
  transition:
    left 120ms ease,
    background 120ms ease;
}

input[type="checkbox"]:checked {
  border-color: rgba(132, 240, 106, 0.62);
  background: rgba(132, 240, 106, 0.16);
}

input[type="checkbox"]:checked::after {
  left: 23px;
  background: var(--green);
}

.controls {
  display: flex;
  align-items: center;
  gap: 10px;
}

.primary-button,
.text-button,
.icon-button,
.pad-button {
  background: var(--panel-strong);
  font-weight: 900;
}

.primary-button:hover,
.text-button:hover,
.icon-button:hover,
.pad-button:hover,
.segment:hover {
  border-color: var(--green);
  background: #2b3640;
}

.primary-button:active,
.text-button:active,
.icon-button:active,
.pad-button:active,
.segment:active {
  transform: translateY(1px);
}

.primary-button {
  min-width: 130px;
  min-height: 46px;
  padding: 0 18px;
  background: var(--green);
  color: #0b140f;
}

.primary-button:hover {
  color: #0b140f;
  background: #a4ff8c;
}

.text-button {
  flex: 1;
  min-height: 46px;
  padding: 0 16px;
}

.icon-button {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
}

.pad {
  width: min(100%, 300px);
  justify-self: center;
  display: none;
  grid-template-columns: repeat(3, 74px);
  grid-template-rows: repeat(3, 52px);
  justify-content: center;
  gap: 8px;
}

.pad-button {
  min-width: 74px;
  height: 52px;
  font-size: 1rem;
}

.pad-button.up {
  grid-column: 2;
}

.pad-button.left {
  grid-column: 1;
  grid-row: 2;
}

.pad-button.center {
  grid-column: 2;
  grid-row: 2;
  color: var(--gold);
}

.pad-button.right {
  grid-column: 3;
  grid-row: 2;
}

.pad-button.down {
  grid-column: 2;
  grid-row: 3;
}

@media (max-width: 980px) {
  body {
    padding: 18px;
  }

  .app {
    min-height: calc(100vh - 36px);
  }

  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .top-actions {
    width: 100%;
    align-items: stretch;
    flex-direction: column;
  }

  .home-link {
    align-self: flex-start;
  }

  .scoreboard {
    width: 100%;
  }

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

  .status-panel,
  .options-panel {
    order: 2;
  }

  .game-shell {
    max-width: min(100%, 640px);
    justify-self: center;
  }

  .panel {
    max-width: 640px;
    width: 100%;
    justify-self: center;
  }

  .pad {
    display: grid;
  }
}

@media (max-width: 560px) {
  body {
    padding: 12px;
  }

  .app {
    gap: 12px;
  }

  h1 {
    font-size: 2.65rem;
  }

  .scoreboard {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .metric {
    min-height: 64px;
    padding: 9px 10px;
  }

  .metric span {
    font-size: 0.66rem;
  }

  .metric strong {
    font-size: 1.35rem;
  }

  .panel {
    padding: 14px;
  }

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

  .pad {
    grid-template-columns: repeat(3, 64px);
    grid-template-rows: repeat(3, 48px);
  }

  .pad-button {
    min-width: 64px;
    height: 48px;
  }
}