:root{
  --bg1:#fff7f0;
  --bg2:#f3fbff;

  --card: rgba(255,255,255,0.86);
  --border: rgba(40, 66, 117, 0.14);
  --text:#0b1b3a;
  --muted:#4b638e;

  --btn:#2c7dff;
  --btn2:#5aa7ff;

  --good:#17c964;
  --bad:#ff3b5c;

  --shadow: 0 18px 50px rgba(20, 40, 80, 0.12);
}

*{ box-sizing: border-box; }
html{
  min-height: 100%;
  background:
    radial-gradient(900px 650px at 20% 20%, rgba(255, 171, 90, 0.18) 0%, rgba(255, 171, 90, 0) 60%),
    radial-gradient(900px 650px at 80% 15%, rgba(44, 125, 255, 0.18) 0%, rgba(44, 125, 255, 0) 60%),
    linear-gradient(180deg, var(--bg2), var(--bg1));
}

body{
  margin: 0;
  min-height: 100vh;
  background: transparent; /* 关键：别覆盖 html 的背景 */
}

.app{
  max-width: 980px;
  margin: 0 auto;
  padding: 22px 16px 34px;
}

#timeText.doneTime{ color: var(--good); }

/* Start Screen */
.startScreen{
  min-height: calc(100vh - 56px);
  display:flex;
  align-items:center;
  justify-content:center;
  flex-direction: column;
  position: relative;
}

.bigTitle{
  font-size: clamp(44px, 7vw, 72px);
  margin: 8px 0 18px;
  letter-spacing: 1px;
  font-weight: 900;
}

.startBtn{
  cursor:pointer;
  border: none;
  border-radius: 999px;
  padding: 14px 26px;
  font-size: 18px;
  font-weight: 800;
  color: white;
  background: linear-gradient(180deg, var(--btn2), var(--btn));
  box-shadow: 0 14px 35px rgba(44,125,255,0.25);
  transition: transform .08s ease, filter .15s ease;
  margin-bottom: 34px;
}
.startSettings{
  margin-top: 40px;
  width: min(500px, calc(100vw - 28px));
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  overflow: hidden;
  padding: 14px;
}
.startSettingsTitle{
  font-size: 14px;
  font-weight: 1000;
  letter-spacing: 0.3px;
  margin: 2px 2px 12px;
  color: rgba(11,27,58,0.85);
}
.startBtn:hover{ filter: brightness(1.05); }
.startBtn:active{ transform: translateY(1px); }

.iconBtn{
  position:absolute;
  top: 12px;
  right: 12px;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.75);
  box-shadow: var(--shadow);
  cursor:pointer;
  font-size: 20px;
  display:flex;
  align-items:center;
  justify-content:center;
  transition: transform .08s ease, filter .15s ease;
}
.iconBtn:hover{ filter: brightness(1.05); }
.iconBtn:active{ transform: translateY(1px); }
.iconBtn.small{
  position: static;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  font-size: 16px;
  box-shadow: none;
}

/* Modal */
.hidden{ display:none !important; }

.modalBackdrop{
  position: fixed;
  inset: 0;
  background: rgba(18, 36, 66, 0.18);
  backdrop-filter: blur(6px);
  z-index: 20;
}

.modal{
  position: fixed;
  z-index: 30;
  width: min(520px, calc(100vw - 28px));
  left: 50%;
  top: 18%;
  transform: translateX(-50%);
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.modalHeader{
  display:flex;
  align-items:center;
  justify-content: space-between;
  padding: 14px 14px 10px;
  border-bottom: 1px solid rgba(40,66,117,0.10);
}
.modalTitle{
  font-size: 16px;
  font-weight: 900;
  letter-spacing: 0.3px;
}
.modalBody{
  padding: 14px;
}

.modeRow .choice{
  font-size: 15px;   /* 想更小就 11px */
  padding: 8px 10px; /* 也会让胶囊按钮更矮 */
}

.settingGroup{
  padding: 8px;
  border: 1px solid rgba(40,66,117,0.12);
  border-radius: 12px;
  background: rgba(255,255,255,0.7);
  margin-bottom: 8px;
}
.groupLabel{
  font-size: 13px;
  font-weight: 800;
  color: rgba(11,27,58,0.85);
  margin-bottom: 6px;
}

.choiceRow{
  display:flex;
  gap: 6px;
}
.choice{
  flex: 1;
  display:flex;
  align-items:center;
  justify-content:center;
  gap: 8px;
  padding: 10px 10px;
  border-radius: 999px;
  border: 1px solid rgba(40,66,117,0.14);
  background: rgba(243,251,255,0.65);
  cursor:pointer;
  font-weight: 800;
}
.choice input{ accent-color: var(--btn); }

.textInput{
  width:100%;
  border-radius: 12px;
  border: 1px solid rgba(40,66,117,0.18);
  background: rgba(255,255,255,0.85);
  padding: 10px 10px;
  outline: none;
  font-size: 14px;
}
.textInput:focus{
  border-color: rgba(44,125,255,0.38);
  box-shadow: 0 0 0 4px rgba(44,125,255,0.12);
}

.toggle{
  display:flex;
  align-items:center;
  gap: 10px;
  user-select: none;
}
.toggle input{ display:none; }
.toggleUI{
  width: 46px;
  height: 26px;
  background: rgba(44,125,255,0.18);
  border: 1px solid rgba(44,125,255,0.22);
  border-radius: 999px;
  position: relative;
}
.toggleUI::after{
  content:"";
  position:absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: white;
  box-shadow: 0 6px 14px rgba(20,40,80,0.18);
  transition: transform .15s ease;
}
.toggle input:checked + .toggleUI{
  background: rgba(44, 125, 255, 0.799);
  border-color: rgba(44, 125, 255, 0.846);
}
.toggle input:checked + .toggleUI::after{
  transform: translateX(20px);
}
.toggleText{
  font-weight: 800;
  color: rgba(11,27,58,0.75);
}

/* Game Screen */
.gameScreen{
  background: transparent;
}

.topbar{
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  margin-bottom: 6px;
  width: 100%;
  grid-template-areas: "left click right";
}

/* topbar areas (used by mobile layout) */
.left{ grid-area: left; }
.clickBanner{ grid-area: click; }
.right{ grid-area: right; }

.left{
  display:flex;
  align-items:center;
  gap: 10px;
  flex-wrap: wrap;
  justify-self: start;
}
.right{
  display:flex;
  align-items:center;
  justify-self: end;
  padding-right: 30px;
}

.stat{
  display:flex;
  gap: 10px;
  align-items: baseline;
  padding: 10px 12px;
  border: 1px solid rgba(40,66,117,0.14);
  background: rgba(255,255,255,0.70);
  border-radius: 14px;
  box-shadow: 0 10px 24px rgba(20,40,80,0.10);
}
.label{ font-size: 12px; color: rgba(75,99,142,0.95); font-weight: 800; }
.value{ font-size: 18px; font-weight: 900; }

.modePill{
  padding: 10px 12px;
  border: 1px solid rgba(40,66,117,0.14);
  background: rgba(255,255,255,0.70);
  border-radius: 14px;
  box-shadow: 0 10px 24px rgba(20,40,80,0.10);

  font-weight: 900;
  font-size: 14px;
  color: rgba(11,27,58,0.92); /* 游玩时黑色 */
  white-space: nowrap;

  min-width: 120px;        /* 想更窄/更宽就调这里 */
  display: flex;
  align-items: center;
  justify-content: center; /* 文字水平居中 */
}
.modePill.done{ color: var(--good); } /* 结束时绿色 */


.penaltyHint{
  color: var(--bad);
  font-size: 16px;
  font-weight: 900;
  margin-left: 2px;
}

.penaltyHint.pop{
  animation: penaltyPop 650ms ease-out 0s 1;
}

@keyframes penaltyPop{
  0%{ opacity: 0; transform: translateY(-2px); }
  15%{ opacity: 1; transform: translateY(0); }
  100%{ opacity: 0; transform: translateY(0); }
}

.clickBanner{
  min-height: 18px;
  font-size: 26px;
  padding: 4px 8px;
  border-radius: 12px;
  font-weight: 1000;
  color:  #0eae60;
  justify-self: center;
  text-align: center;
}
.clickBanner.bad{ color: rgba(255,59,92,0.95); }
.clickBanner.good{ color: rgba(23,201,100,0.95); }
.clickBanner.doneBanner{
  font-size: 30px;
  padding: 0;
}

.btn{
  cursor:pointer;
  border: 1px solid rgba(40,66,117,0.16);
  background: rgba(255,255,255,0.70);
  color: rgba(11,27,58,0.9);
  padding: 10px 14px;
  border-radius: 14px;
  font-weight: 900;
  box-shadow: 0 10px 24px rgba(20,40,80,0.10);
  transition: transform .08s ease, filter .15s ease;
}
.btn:hover{ filter: brightness(1.04); }
.btn:active{ transform: translateY(1px); }
.btn.ghost{ background: rgba(255,255,255,0.45); }

.boardArea{
  display:flex;
  justify-content:center;
  padding: 3px 0 10px;
}

.bottomControls{
  display:flex;
  justify-content:center;
  align-items:center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 3px auto 2px;
}

.boardWrap{
  width: min(84vmin, 740px);
  height: min(84vmin, 740px);
  position: relative;
  border-radius: 18px;
}

/* SVG board */
.boardSvg{
  width: 100%;
  height: 100%;
  display:block;
  border-radius: 8px;
  background: rgba(255,255,255,0.60);
  border: 2px solid rgba(44,125,255,0.18);
  box-shadow: 0 18px 45px rgba(20,40,80,0.12);
}

/* Cells (NO per-cell color) */
.cell{
  fill: rgba(253, 240, 119, 0.4);
  stroke: none;
  transition: filter 0.12s ease, opacity 0.12s ease;
}
/* Easy mode: permanently mark finished cells */
.cell.easyDone{
  fill: rgba(253, 240, 119, 0.72); /* 想更深/更浅就调这里的 alpha */
}
.edgePath{
  fill: none;
  stroke: rgb(126, 145, 127);
  stroke-width: 1.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  pointer-events: none;
}
.cell:hover{
  filter: brightness(1.03);
}
.cell.correct{ opacity: 1; stroke: rgba(11,27,58,0.22); }

.cell.wrong{
  fill: rgba(255,255,255,0.55);
  stroke: rgba(11,27,58,0.55);
  stroke-width: 2.4;
  stroke-dasharray: 6 4;
  filter: none;
}

.cellText{
  font-weight: 750;
  fill: rgba(11,27,58,0.80);
  user-select: none;
  pointer-events: none;
}
.cellText.done{
  fill: rgba(23,201,100,0.88) !important;
  opacity: 0.80;
}
.cellText.wrong{
  fill: rgba(220, 30, 30, 0.95);
}
.cell.hit{ animation: hitPulse 160ms ease-out 0s 1; }
@keyframes hitPulse{
  0%{ filter: brightness(1.00); }
  50%{ filter: brightness(1.12); }
  100%{ filter: brightness(1.00); }
}
/* Hard mode: correct cell flashes green */
.mode-hard .cell.hit{
  animation: goodFlash 160ms ease-out 0s 1;
}
@keyframes goodFlash{
  0%{ fill: rgba(253, 240, 119, 0.4); }
  50%{ fill: rgba(23,201,100,0.40); }
  100%{ fill: rgba(253, 240, 119, 0.4); }
}

/* Flash on wrong */
.flash-bad{
  animation: flashBad 100ms ease-in-out 0s 2;
}
@keyframes flashBad{
  0%{ box-shadow: 0 0 0 rgba(11,27,58,0); }
  50%{ box-shadow: 0 0 0 8px rgba(11,27,58,0.10); }
  100%{ box-shadow: 0 0 0 rgba(11,27,58,0); }
}

/* Pause overlay */
.pausedOverlay{
  position:absolute;
  inset: 0;
  display:flex;
  align-items:center;
  justify-content:center;
  pointer-events:none;
}
.pausedPill{
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid rgba(40,66,117,0.18);
  background: rgba(255,255,255,0.72);
  font-weight: 1000;
  letter-spacing: 1px;
  box-shadow: 0 14px 30px rgba(20,40,80,0.12);
}

.seedShare{
  margin: 10px auto 0;
  width: fit-content;
  max-width: calc(100% - 28px);
  padding: 10px 12px;
  border: 1px solid rgba(40,66,117,0.14);
  background: rgba(255,255,255,0.70);
  border-radius: 14px;
  box-shadow: 0 10px 24px rgba(20,40,80,0.10);

  text-align: center;
  white-space: pre-line;
  font-size: 13px;
  font-weight: 900;
  color: rgba(75,99,142,0.95);

  user-select: text;
}

@media (max-width: 520px) {
  .topbar{
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "left right"
      "click click";
    gap: 8px;
  }
  .left{
    grid-area: left;
    justify-self: start;
  }
  .left .stat{
    padding: 7px 9px;
    gap: 8px;
    border-radius: 12px;
  }
  .left .label{ font-size: 10px; }
  .left .value{ font-size: 15px; }
  .right{
    padding-right: 0px !important;
  }

  .boardWrap{
    width: calc(100vw - 4px);
    height: calc(100vw - 12px);
  }
  .app{ padding: 12px 6px 18px; }

  .clickBanner{
    grid-area: click;
    justify-self: center;
    font-size: 22px;
  }

  .bottomControls{
    gap: 8px;
  }

  .btn{
    padding: 8px 10px;
    font-size: 14px;
    white-space: nowrap;
  }
}