:root {
  --bg: #f7f1e8;
  --bg-2: #f0eadf;
  --panel: rgba(255, 255, 255, 0.9);
  --panel-strong: rgba(255, 255, 255, 0.98);
  --line: rgba(97, 82, 57, 0.12);
  --line-strong: rgba(97, 82, 57, 0.2);
  --ink: #2f2a22;
  --muted: #786c5d;
  --good: #36996f;
  --warn: #d96a5c;
  --accent: #f3c95f;
  --shadow: 0 24px 64px rgba(73, 53, 28, 0.12);
  --shadow-soft: 0 12px 32px rgba(73, 53, 28, 0.08);
  --radius-xl: 34px;
  --radius-lg: 26px;
  --radius-md: 20px;
  --radius-sm: 16px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 20% 12%, rgba(243, 201, 95, 0.16), transparent 20%),
    radial-gradient(circle at 82% 18%, rgba(118, 190, 231, 0.12), transparent 18%),
    radial-gradient(circle at 50% 100%, rgba(178, 221, 149, 0.15), transparent 24%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  background-attachment: fixed;
  overflow-x: hidden;
}

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

button,
input,
textarea,
select {
  font: inherit;
}

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

.backdrop {
  position: fixed;
  inset: -12%;
  pointer-events: none;
  z-index: 0;
}

.backdrop-a {
  background:
    radial-gradient(circle at 16% 28%, rgba(243, 201, 95, 0.22), transparent 16%),
    radial-gradient(circle at 82% 24%, rgba(118, 190, 231, 0.18), transparent 16%),
    radial-gradient(circle at 54% 82%, rgba(178, 221, 149, 0.16), transparent 18%);
  filter: blur(34px);
}

.backdrop-b {
  background:
    radial-gradient(circle at 18% 78%, rgba(230, 160, 194, 0.14), transparent 16%),
    radial-gradient(circle at 88% 68%, rgba(152, 131, 219, 0.12), transparent 18%);
  filter: blur(44px);
}

.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.08;
  background-image:
    linear-gradient(rgba(0, 0, 0, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 0, 0, 0.02) 1px, transparent 1px);
  background-size: 24px 24px;
  mix-blend-mode: soft-light;
}

#app,
.app-shell {
  position: relative;
  z-index: 2;
  min-height: 100vh;
}

.app-shell {
  width: min(920px, 100%);
  margin: 0 auto;
  padding:
    max(16px, env(safe-area-inset-top))
    max(14px, env(safe-area-inset-right))
    max(24px, env(safe-area-inset-bottom))
    max(14px, env(safe-area-inset-left));
  display: grid;
  gap: 14px;
}

.topbar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  min-height: 76px;
}

.topbar-left,
.topbar-center,
.topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-left {
  justify-content: flex-start;
}

.topbar-center {
  flex-direction: column;
  justify-content: center;
  gap: 8px;
}

.level-meta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.topbar-right {
  justify-content: flex-end;
}

.level-name {
  font-family: "Songti SC", "STSong", "Iowan Old Style", serif;
  font-size: clamp(28px, 5vw, 42px);
  line-height: 1;
  letter-spacing: -0.05em;
}

.level-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 10px;
  border-radius: 999px;
  border: 1px solid rgba(97, 82, 57, 0.14);
  background: rgba(255, 255, 255, 0.84);
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.level-subtitle {
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.coin-pill,
.remaining-pill,
.rule-card,
.play-card,
.board-shell,
.big-action,
.icon-btn,
.panel-card,
.result-card,
.toast {
  border: 1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}

.coin-pill {
  padding: 10px 14px;
  border-radius: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 110px;
}

.coin-pill strong {
  font-size: 22px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.coin-icon {
  font-size: 18px;
}

.heart-strip {
  display: flex;
  align-items: center;
  gap: 6px;
}

.heart {
  font-size: 20px;
  color: #f05353;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5);
}

.icon-btn {
  width: 48px;
  height: 48px;
  border-radius: 16px;
  border: 1px solid rgba(97, 82, 57, 0.14);
  color: var(--ink);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.78)),
    rgba(255, 255, 255, 0.8);
  cursor: pointer;
  display: grid;
  place-items: center;
  font-size: 20px;
  transition:
    transform 160ms ease,
    box-shadow 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

.icon-btn:hover,
.big-action:hover,
.panel-chip:hover,
.panel-primary:hover,
.board-cell:hover {
  transform: translateY(-1px);
}

.icon-btn:active,
.big-action:active,
.panel-chip:active,
.panel-primary:active,
.board-cell:active {
  transform: translateY(0);
}

.play-card {
  padding: 14px;
  border-radius: var(--radius-xl);
  display: grid;
  gap: 14px;
}

.hero {
  display: grid;
  gap: 12px;
}

.rule-card {
  border-radius: 30px;
  padding: 18px 16px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.84)),
    rgba(255, 255, 255, 0.82);
}

.rule-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 1px minmax(0, 1fr) 1px minmax(0, 1fr);
  gap: 0;
  align-items: stretch;
}

.rule-column {
  min-height: 92px;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 10px 12px;
}

.rule-divider {
  width: 1px;
  background: rgba(97, 82, 57, 0.12);
}

.rule-title {
  font-size: clamp(16px, 2.6vw, 22px);
  line-height: 1.35;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.rule-note {
  margin-top: 12px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
  font-weight: 700;
}

.remaining-pill {
  width: fit-content;
  margin: 0 auto;
  border-radius: 999px;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.84)),
    rgba(255, 255, 255, 0.84);
}

.remaining-avatar {
  font-size: 22px;
}

.remaining-text {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
}

.remaining-text strong {
  color: #d94c4c;
  font-size: 18px;
  margin-left: 2px;
}

.board-shell {
  padding: 16px;
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0.82)),
    rgba(255, 255, 255, 0.82);
}

.board-grid {
  --size: 6;
  width: min(100%, 640px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(var(--size), minmax(0, 1fr));
  gap: 10px;
}

.board-cell {
  position: relative;
  aspect-ratio: 1 / 1;
  border: 0;
  border-radius: 18px;
  cursor: pointer;
  touch-action: none;
  user-select: none;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.26), rgba(255, 255, 255, 0)),
    var(--region-bg);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.45),
    inset 0 -1px 0 rgba(0, 0, 0, 0.06),
    0 8px 20px var(--region-glow);
  transition:
    transform 140ms ease,
    filter 140ms ease,
    box-shadow 140ms ease,
    outline-color 140ms ease;
  outline: 2px solid transparent;
  min-height: 48px;
}

.board-cell::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 2px solid var(--region-edge);
  opacity: 0.88;
}

.board-cell-sheen {
  position: absolute;
  inset: 7px 8px auto;
  height: 26%;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.18);
  filter: blur(8px);
}

.board-cell-value {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: clamp(24px, 4vw, 34px);
  color: var(--region-ink);
  font-weight: 900;
}

.board-cell.has-mark .board-cell-value {
  color: rgba(47, 42, 34, 0.5);
  font-size: clamp(26px, 4vw, 38px);
}

.board-cell.has-cow {
  transform: translateY(-1px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.48),
    inset 0 -1px 0 rgba(0, 0, 0, 0.06),
    0 14px 26px var(--region-glow);
}

.board-cell.is-problem {
  outline-color: rgba(220, 88, 88, 0.92);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.4),
    inset 0 -1px 0 rgba(0, 0, 0, 0.08),
    0 0 0 3px rgba(220, 88, 88, 0.18),
    0 12px 22px rgba(220, 88, 88, 0.16);
}

.control-bar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 12px;
}

.big-action {
  border-radius: 26px;
  padding: 16px 12px 14px;
  display: grid;
  grid-template-areas:
    "icon icon"
    "text text";
  justify-items: center;
  align-items: center;
  gap: 6px;
  color: var(--ink);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.big-action.left {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.84)),
    rgba(255, 255, 255, 0.84);
}

.big-action.center {
  background:
    linear-gradient(180deg, #fcf8ee, #f7ebc8),
    rgba(255, 255, 255, 0.9);
  cursor: default;
}

.big-action.center:hover,
.big-action.center:active {
  transform: none;
}

.big-action.right {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.84)),
    rgba(255, 255, 255, 0.84);
}

.big-action-icon {
  grid-area: icon;
  font-size: 28px;
  line-height: 1;
}

.big-action-text {
  grid-area: text;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.big-action-plus,
.big-action-count {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 8px;
  min-width: 34px;
  padding: 3px 10px;
  border-radius: 999px;
  background: #1f8bd9;
  color: #fff;
  font-size: 15px;
  font-weight: 800;
  text-align: center;
  box-shadow: 0 8px 18px rgba(31, 139, 217, 0.24);
}

.big-action-plus {
  width: 34px;
}

.status-line {
  color: var(--muted);
  font-size: 14px;
  text-align: center;
  line-height: 1.6;
  min-height: 1.6em;
}

.eyebrow {
  color: #ad7f2f;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: max(18px, env(safe-area-inset-bottom));
  transform: translateX(-50%) translateY(16px);
  padding: 12px 16px;
  border-radius: 999px;
  color: var(--ink);
  opacity: 0;
  pointer-events: none;
  transition:
    opacity 180ms ease,
    transform 180ms ease;
  z-index: 30;
  max-width: min(92vw, 520px);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

.panel-overlay,
.result-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(52, 37, 20, 0.28);
  backdrop-filter: blur(12px);
}

.panel-card,
.result-card {
  width: min(480px, 100%);
  border-radius: 28px;
  background: var(--panel-strong);
  border: 1px solid rgba(97, 82, 57, 0.16);
  box-shadow: 0 30px 80px rgba(66, 46, 24, 0.18);
  padding: 22px;
  display: grid;
  gap: 16px;
}

.panel-card h2,
.result-card h2 {
  font-family: "Songti SC", "STSong", "Iowan Old Style", serif;
  font-size: clamp(32px, 6vw, 46px);
  line-height: 1;
  letter-spacing: -0.05em;
}

.panel-list {
  padding-left: 18px;
  display: grid;
  gap: 10px;
  color: var(--muted);
  line-height: 1.7;
}

.panel-actions,
.result-actions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.panel-chip,
.panel-primary {
  border: 1px solid rgba(97, 82, 57, 0.14);
  border-radius: 18px;
  padding: 12px 14px;
  cursor: pointer;
  transition:
    transform 140ms ease,
    box-shadow 140ms ease,
    background 140ms ease;
}

.panel-chip {
  background: rgba(255, 255, 255, 0.84);
  color: var(--ink);
}

.panel-primary {
  background: linear-gradient(180deg, #f8d96f, #eabf42);
  color: #2b220c;
  font-weight: 800;
  box-shadow: 0 12px 26px rgba(234, 191, 66, 0.24);
}

.result-copy {
  color: var(--muted);
  line-height: 1.7;
}

.result-stars {
  font-size: 30px;
  color: #f0b41f;
  letter-spacing: 0.08em;
}

@media (max-width: 720px) {
  .topbar {
    grid-template-columns: 1fr;
    justify-items: stretch;
    gap: 10px;
  }

  .topbar-center {
    order: -1;
    align-items: center;
  }

  .topbar-left,
  .topbar-right {
    justify-content: space-between;
  }

  .board-grid {
    gap: 8px;
  }

  .rule-columns {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .rule-divider {
    display: none;
  }

  .rule-column {
    min-height: auto;
    padding: 0;
  }

  .control-bar {
    gap: 10px;
  }

  .big-action {
    padding: 14px 10px 12px;
  }

  .panel-actions,
  .result-actions {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 420px) {
  .app-shell {
    padding-left: 10px;
    padding-right: 10px;
  }

  .play-card {
    padding: 12px;
  }

  .board-shell {
    padding: 12px;
  }

  .board-cell {
    border-radius: 16px;
  }

  .big-action-text {
    font-size: 15px;
  }
}