/* KidsUI —— 蜡笔纸艺设计系统（逻辑游戏合集共享层）
 * 游戏页在自己的 <style> 之前引入本文件；每页用 --game-accent 覆写强调色。
 * 令牌前缀 kui-，避免与各游戏内联样式冲突。
 */
:root {
  --kui-paper: #faf5ec;
  --kui-paper-deep: #f1e8d6;
  --kui-card: #fffdf8;
  --kui-ink: #2f2a25;
  --kui-ink-soft: #6f6559;
  --kui-line: rgba(47, 42, 37, 0.16);
  --game-accent: #ff6b4a;
  --kui-good: #3fa574;
  --kui-bad: #e5533d;
  --kui-star: #ffb703;
  --kui-shadow: 0 3px 0 rgba(47, 42, 37, 0.16);
  --kui-radius-lg: 22px;
  --kui-radius-md: 14px;
  --kui-radius-sm: 10px;
  --kui-tap: 48px;
  --kui-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

/* ── 游戏顶栏 ── */
.kui-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: calc(8px + env(safe-area-inset-top, 0px)) 14px 8px;
  background: var(--kui-paper);
  border-bottom: 2px solid var(--kui-line);
}
body.kui-has-header {
  padding-top: calc(66px + env(safe-area-inset-top, 0px));
}
.kui-title {
  flex: 1;
  margin: 0;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--kui-ink);
  text-align: center;
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.kui-actions {
  display: flex;
  gap: 8px;
}

/* ── 按钮（纸卡厚影，按压下沉） ── */
.kui-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: var(--kui-tap);
  min-height: var(--kui-tap);
  padding: 0 14px;
  border: 2px solid var(--kui-line);
  border-radius: 999px;
  background: var(--kui-card);
  color: var(--kui-ink);
  font-family: inherit;
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  box-shadow: var(--kui-shadow);
  transition: transform 0.12s var(--kui-bounce), box-shadow 0.12s;
  user-select: none;
  -webkit-user-select: none;
}
.kui-btn:active {
  transform: translateY(3px);
  box-shadow: 0 0 0 rgba(47, 42, 37, 0);
}
.kui-btn:focus-visible {
  outline: 3px solid var(--game-accent);
  outline-offset: 2px;
}
.kui-btn.kui-primary {
  background: var(--game-accent);
  color: #fff;
  border-color: rgba(47, 42, 37, 0.22);
}
.kui-btn.kui-big {
  min-height: 56px;
  padding: 0 28px;
  font-size: 1.15rem;
}
.kui-btn.kui-ghost {
  box-shadow: none;
  border-style: dashed;
  background: transparent;
}

/* ── 统计胶囊 ── */
.kui-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  border: 2px solid var(--kui-line);
  border-radius: 999px;
  background: var(--kui-card);
  box-shadow: var(--kui-shadow);
  color: var(--kui-ink);
  font-size: 1rem;
  font-weight: 800;
}

/* ── 结算庆祝层 ── */
.kui-celebrate {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(47, 42, 37, 0.35);
  opacity: 0;
  transition: opacity 0.2s;
  overflow: hidden;
}
.kui-celebrate.in {
  opacity: 1;
}
.kui-celebrate-card {
  position: relative;
  z-index: 2;
  width: min(86vw, 360px);
  padding: 30px 26px 26px;
  border: 2px solid var(--kui-line);
  border-radius: var(--kui-radius-lg);
  background: var(--kui-card);
  box-shadow: 0 10px 0 rgba(47, 42, 37, 0.18);
  text-align: center;
  transform: scale(0.7);
  transition: transform 0.25s var(--kui-bounce);
}
.kui-celebrate.in .kui-celebrate-card {
  transform: scale(1);
}
.kui-stars {
  font-size: 2.6rem;
  line-height: 1;
  letter-spacing: 0.12em;
  margin-bottom: 8px;
}
.kui-star {
  display: inline-block;
  color: #d9cfbe;
  transform: scale(0);
}
.kui-star.on {
  color: var(--kui-star);
  text-shadow: 0 2px 0 rgba(47, 42, 37, 0.15);
  animation: kuiStarPop 0.5s var(--kui-bounce) forwards;
}
@keyframes kuiStarPop {
  to {
    transform: scale(1);
  }
}
.kui-celebrate-title {
  margin: 4px 0;
  font-size: 1.7rem;
  font-weight: 900;
  color: var(--kui-ink);
}
.kui-celebrate-sub {
  margin: 0 0 18px;
  font-size: 1rem;
  color: var(--kui-ink-soft);
}
.kui-btnrow {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}
.kui-confetti {
  position: absolute;
  top: -14px;
  width: 10px;
  height: 16px;
  border-radius: 3px;
  z-index: 1;
  animation: kuiConfettiFall linear forwards;
}
@keyframes kuiConfettiFall {
  to {
    transform: translateY(105vh) rotate(720deg);
    opacity: 0.9;
  }
}

@media (prefers-reduced-motion: reduce) {
  .kui-confetti {
    display: none;
  }
  .kui-star.on {
    animation: none;
    transform: scale(1);
  }
  .kui-celebrate-card,
  .kui-btn {
    animation: none;
    transition: none;
  }
}