* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  background: #0d2b1d;
  color: #eaf5ee;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
               "Microsoft YaHei", "Helvetica Neue", sans-serif;
  -webkit-font-smoothing: antialiased;
  /* 手机上禁止双指缩放与下拉刷新干扰瞄准 */
  touch-action: none;
  overscroll-behavior: none;
}

.screen {
  display: none;
  height: 100%;
  flex-direction: column;
}

.screen--on { display: flex; }

/* ---------- 通用按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 22px;
  border: 0;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 1px;
  font-family: inherit;
  cursor: pointer;
  transition: opacity .15s, transform .1s;
  user-select: none;
}

.btn:active { opacity: .75; transform: scale(.98); }
.btn:focus-visible { outline: 2px solid #f4c552; outline-offset: 2px; }

.btn--primary {
  background: linear-gradient(135deg, #f4c552, #e0952c);
  color: #2a1b04;
}

.btn--ghost {
  background: rgba(255, 255, 255, .1);
  color: #eaf5ee;
  border: 1px solid rgba(255, 255, 255, .22);
}

.btn--big { width: 100%; height: 56px; font-size: 17px; }
.btn--sm { height: 38px; padding: 0 16px; font-size: 14px; }
.btn:disabled { opacity: .45; cursor: default; }

/* ---------- 大厅 ---------- */

#lobby {
  justify-content: center;
  padding: 24px 22px calc(24px + env(safe-area-inset-bottom));
  max-width: 520px;
  margin: 0 auto;
  width: 100%;
  overflow-y: auto;
  background: radial-gradient(120% 55% at 50% 0%, #14563a 0%, #0d2b1d 62%);
}

.hero__title {
  margin: 0;
  font-size: 34px;
  font-weight: 800;
  letter-spacing: 3px;
}

.hero__sub {
  margin: 8px 0 0;
  font-size: 14px;
  color: rgba(234, 245, 238, .62);
}

.table-mini {
  margin: 22px 0 26px;
  height: 92px;
  border-radius: 14px;
  background: #1b7a4e;
  border: 5px solid #6b4423;
  display: flex;
  align-items: center;
  justify-content: space-around;
  box-shadow: inset 0 4px 16px rgba(0, 0, 0, .35);
}

.ball {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  color: #fff;
  box-shadow: inset -3px -4px 8px rgba(0, 0, 0, .38);
}

.ball--y { background: #e8b923; color: #3a2a00; }
.ball--k { background: #1d1d1f; }
.ball--r { background: #c0392b; }

.sep {
  border: 0;
  border-top: 1px solid rgba(255, 255, 255, .12);
  margin: 22px 0;
}

.row {
  display: flex;
  gap: 12px;
  margin-bottom: 14px;
}

.row .btn { flex: 1; padding: 0 10px; }

.join { display: flex; gap: 12px; }

.join__input {
  flex: 1;
  min-width: 0;
  height: 48px;
  padding: 0 18px;
  border-radius: 999px;
  background: rgba(0, 0, 0, .3);
  border: 1px solid rgba(255, 255, 255, .18);
  color: #eaf5ee;
  font-size: 16px;
  font-family: inherit;
  letter-spacing: 4px;
  text-transform: uppercase;
}

.join__input::placeholder { color: rgba(234, 245, 238, .38); letter-spacing: 1px; }
.join__input:focus { outline: none; border-color: #f4c552; }

.join__btn { width: 92px; padding: 0; }

.diff { margin-top: 20px; }
.diff__label { font-size: 13px; color: rgba(234, 245, 238, .6); }

.diff__opts { margin-top: 8px; display: flex; gap: 8px; }

.diff__opt {
  flex: 1;
  height: 40px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .16);
  color: rgba(234, 245, 238, .75);
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
}

.diff__opt--on {
  background: rgba(244, 197, 82, .2);
  border-color: #f4c552;
  color: #f4c552;
  font-weight: 600;
}

.tips {
  margin: 22px 0 0;
  font-size: 13px;
  color: rgba(234, 245, 238, .45);
  line-height: 1.6;
}

/* ---------- 对局 ---------- */

#game { padding-bottom: env(safe-area-inset-bottom); }

.hud {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  flex: 0 0 auto;
}

.hud__side {
  flex: 1;
  min-width: 0;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, .12);
  background: rgba(255, 255, 255, .05);
}

.hud__side--right { text-align: right; }

.hud__side--on {
  border-color: #f4c552;
  background: rgba(244, 197, 82, .16);
  box-shadow: 0 0 14px rgba(244, 197, 82, .22);
}

.hud__name {
  font-size: 15px;
  font-weight: 600;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.hud__grp { margin-top: 2px; font-size: 12px; color: rgba(234, 245, 238, .58); }

.hud__mid { width: 62px; text-align: center; flex: 0 0 auto; }

.hud__timer {
  font-size: 18px;
  font-weight: 700;
  color: #f4c552;
  font-variant-numeric: tabular-nums;
}

.stage {
  flex: 1 1 auto;
  position: relative;
  min-height: 0;
}

#table { display: block; width: 100%; height: 100%; }

.overlay {
  position: absolute;
  inset: 0;
  background: rgba(4, 18, 11, .84);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.overlay[hidden] { display: none; }

.overlay__box {
  width: 100%;
  max-width: 340px;
  padding: 26px 22px;
  border-radius: 18px;
  background: #123f29;
  border: 1px solid rgba(255, 255, 255, .14);
  text-align: center;
}

.overlay__t { font-size: 20px; font-weight: 700; }

.overlay__code {
  margin: 14px 0 6px;
  font-size: 38px;
  font-weight: 800;
  letter-spacing: 8px;
  color: #f4c552;
  font-variant-numeric: tabular-nums;
}

.overlay__d {
  margin: 8px 0 0;
  font-size: 13px;
  color: rgba(234, 245, 238, .62);
  line-height: 1.6;
}

.overlay__row { display: flex; gap: 10px; margin-top: 20px; }
.overlay__row .btn { flex: 1; padding: 0 10px; font-size: 15px; }

.bottom { padding: 10px 14px 14px; flex: 0 0 auto; }

.msg {
  min-height: 20px;
  font-size: 13px;
  color: rgba(234, 245, 238, .78);
  line-height: 1.5;
}

.power {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.power__label { font-size: 12px; color: rgba(234, 245, 238, .55); flex: 0 0 auto; }

.power__bar {
  flex: 1;
  height: 8px;
  border-radius: 999px;
  background: rgba(0, 0, 0, .35);
  overflow: hidden;
}

.power__fill {
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, #6ddf9c, #f4c552 60%, #e0503c);
}

.power__num {
  width: 42px;
  text-align: right;
  font-size: 12px;
  color: rgba(234, 245, 238, .7);
  font-variant-numeric: tabular-nums;
  flex: 0 0 auto;
}

.actions {
  margin-top: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.hint { flex: 1; font-size: 12px; color: rgba(234, 245, 238, .5); }
.hint--warn { color: #f4c552; }

/* ---------- Toast ---------- */

.toast {
  position: fixed;
  left: 50%;
  bottom: 78px;
  transform: translateX(-50%);
  max-width: 86vw;
  padding: 11px 20px;
  border-radius: 999px;
  background: rgba(0, 0, 0, .82);
  color: #fff;
  font-size: 14px;
  text-align: center;
  z-index: 99;
  animation: toastIn .2s ease-out;
}

.toast[hidden] { display: none; }

@keyframes toastIn {
  from { opacity: 0; transform: translate(-50%, 8px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* 横屏矮屏（手机横放）压缩上下留白，把空间让给台面 */
@media (max-height: 480px) {
  .hud { padding: 6px 10px; }
  .hud__grp { display: none; }
  .bottom { padding: 6px 10px 10px; }
  .msg { min-height: 0; font-size: 12px; }
  .power { margin-top: 6px; }
  .actions { margin-top: 8px; }
}