:root {
  --font: "Be Vietnam Pro", Arial, sans-serif;
  --title: "Baloo 2", "Be Vietnam Pro", sans-serif;
  --ink: #3b2a1a;
  --brown: #7a3e12;
  --muted: #9a7a55;
  /* bàn vừa cả chiều ngang lẫn chiều cao màn hình */
  --fw: min(540px, 94vw, max(260px, calc((100vh - 285px) * 1.04)));
  --cell: calc(var(--fw) / 3);
}
* {
  box-sizing: border-box;
}
[hidden] {
  display: none !important;
}
html,
body {
  margin: 0;
}
body {
  min-height: 100vh;
  overflow-x: hidden;
  background: linear-gradient(#aee0ff, #dff4ff 35%, #e8f7d4);
  color: var(--ink);
  font-family: var(--font);
  user-select: none;
  -webkit-user-select: none;
  -webkit-tap-highlight-color: transparent;
}
button {
  font-family: var(--font);
  color: inherit;
  cursor: pointer;
}
kbd {
  padding: 0 5px;
  border: 1px solid #d8c4a2;
  border-radius: 4px;
  background: #fffdf6;
  font: 700 11px var(--font);
}
.back {
  position: fixed;
  top: 12px;
  left: 14px;
  z-index: 5;
  color: var(--brown);
  font-weight: 700;
  font-size: 13px;
  text-decoration: none;
}

.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 10px 8px 14px;
}
h1 {
  margin: 0;
  font: 800 30px/1.1 var(--title);
  color: var(--brown);
}

/* ---------- Chỉ số ---------- */
.stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
}
.stat {
  position: relative;
  min-width: 84px;
  padding: 5px 12px 3px;
  border-radius: 14px;
  background: #fffdf6;
  box-shadow:
    0 3px 0 #e2cfae,
    0 6px 14px rgba(80, 50, 20, 0.12);
  text-align: center;
}
.stat small {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.stat b {
  display: block;
  font: 800 26px/1.15 var(--title);
}
#stScore {
  color: #e8590c;
}
#stTime {
  color: #1c7ed6;
}
#stCombo {
  color: #ae3ec9;
}
#stBest {
  color: #2b8a3e;
}
#stTime.danger {
  color: #e03131;
}
.mult {
  position: absolute;
  top: -9px;
  right: -9px;
  padding: 0 7px;
  border-radius: 10px;
  background: #ae3ec9;
  color: #fff;
  font: 700 12px/20px var(--font);
  font-style: normal;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}
.bump {
  animation: bump 0.3s ease;
}
@keyframes bump {
  40% {
    transform: scale(1.22);
  }
}

.timebar {
  width: var(--fw);
  height: 10px;
  border-radius: 5px;
  background: rgba(60, 40, 10, 0.12);
  overflow: hidden;
}
.timebar i {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 5px;
  background: #40c057;
  transition:
    width 0.1s linear,
    background 0.3s;
}
.timebar i.warn {
  background: #fab005;
}
.timebar i.danger {
  background: #fa5252;
}

/* ---------- Bãi cỏ & hang ---------- */
.field {
  position: relative;
  width: var(--fw);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 3% 2% 2%;
  border-radius: 26px;
  background:
    radial-gradient(circle at 18% 22%, rgba(255, 255, 255, 0.16) 0 3%, transparent 3.5%),
    radial-gradient(circle at 82% 70%, rgba(255, 255, 255, 0.12) 0 2.5%, transparent 3%),
    radial-gradient(ellipse at 50% 30%, #8fdc6a, #5fb944 70%, #4ea337);
  box-shadow:
    inset 0 -6px 0 rgba(0, 0, 0, 0.12),
    0 10px 30px rgba(40, 90, 20, 0.3);
  overflow: hidden;
  touch-action: manipulation;
}
@media (hover: hover) {
  .field {
    cursor: none;
  }
}
.field.shake {
  animation: shake 0.4s;
}
@keyframes shake {
  20% {
    transform: translate(-8px, 3px);
  }
  40% {
    transform: translate(7px, -4px);
  }
  60% {
    transform: translate(-5px, 2px);
  }
  80% {
    transform: translate(3px, -1px);
  }
}
.hole {
  position: relative;
  aspect-ratio: 1 / 0.95;
}
.pit {
  position: absolute;
  left: 15%;
  right: 15%;
  bottom: 16%;
  height: 24%;
  border-radius: 50%;
  background: radial-gradient(ellipse at 50% 35%, #1a0e06 45%, #3d2513 75%, #5c3a1e);
}
/* con vật chui lên từ giữa miệng hang; phần dưới bị khung che */
.slot {
  position: absolute;
  left: 6%;
  right: 6%;
  top: 0;
  bottom: 28%;
  overflow: hidden;
  pointer-events: none;
}
.critter {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  transform: translateY(104%);
  transition: transform 0.14s ease-out;
}
.critter.up {
  transform: translateY(0);
}
.face {
  font-size: calc(var(--cell) * 0.48);
  line-height: 0.95;
  filter: drop-shadow(0 3px 2px rgba(0, 0, 0, 0.3));
  transform-origin: 50% 100%;
  transition: transform 0.1s;
}
.critter.gold .face {
  filter: sepia(1) saturate(5) hue-rotate(-12deg) brightness(1.15) drop-shadow(0 0 8px #ffd43b);
}
.critter.hit .face {
  transform: scale(1.12, 0.78);
}
.hat,
.stars {
  display: none;
  position: absolute;
  left: 50%;
  line-height: 1;
  transform: translateX(-50%);
}
.hat {
  bottom: calc(var(--cell) * 0.25);
  font-size: calc(var(--cell) * 0.27);
}
.critter.helmet .hat {
  display: block;
}
.critter.nohat .hat {
  animation: hatfly 0.45s ease-in forwards;
}
@keyframes hatfly {
  to {
    transform: translate(60%, -120%) rotate(70deg);
    opacity: 0;
  }
}
.stars {
  bottom: calc(var(--cell) * 0.4);
  font-size: calc(var(--cell) * 0.2);
}
.critter.hit:not(.bomb) .stars {
  display: block;
  animation: dizzy 0.5s linear infinite;
}
@keyframes dizzy {
  to {
    transform: translateX(-50%) rotate(360deg);
  }
}
/* khung đất phía trước miệng hang */
.rim {
  position: absolute;
  left: 11%;
  right: 11%;
  bottom: 9%;
  height: 19%;
  border-radius: 0 0 50% 50% / 0 0 100% 100%;
  background: linear-gradient(#a0693a, #7a4a24);
  box-shadow: inset 0 3px 0 #b57b46;
  pointer-events: none;
}
.hole kbd {
  position: absolute;
  right: 9%;
  bottom: 3%;
  border: 0;
  background: rgba(0, 0, 0, 0.18);
  color: rgba(255, 255, 255, 0.8);
  pointer-events: none;
}
@media (hover: none) {
  .hole kbd,
  .keys {
    display: none;
  }
}

/* chữ bay lên khi đập */
.float {
  position: absolute;
  left: 50%;
  top: 14%;
  z-index: 4;
  font: 800 calc(var(--cell) * 0.17) / 1 var(--title);
  color: #fff;
  text-shadow:
    0 2px 0 #c2410c,
    0 0 6px rgba(0, 0, 0, 0.35);
  white-space: nowrap;
  pointer-events: none;
  animation: floatUp 0.8s ease-out forwards;
}
.float.gold {
  color: #ffe066;
  text-shadow:
    0 2px 0 #b45309,
    0 0 8px rgba(0, 0, 0, 0.4);
}
.float.bad {
  color: #ff8787;
  text-shadow:
    0 2px 0 #7f1d1d,
    0 0 6px rgba(0, 0, 0, 0.4);
}
.float.good {
  color: #d3f9d8;
  text-shadow:
    0 2px 0 #1b5e20,
    0 0 6px rgba(0, 0, 0, 0.4);
}
.float.meh {
  font-size: calc(var(--cell) * 0.13);
  text-shadow:
    0 2px 0 #495057,
    0 0 6px rgba(0, 0, 0, 0.35);
}
@keyframes floatUp {
  from {
    opacity: 0;
    transform: translate(-50%, 30%) scale(0.7);
  }
  20% {
    opacity: 1;
    transform: translate(-50%, 0) scale(1.1);
  }
  to {
    opacity: 0;
    transform: translate(-50%, -110%) scale(1);
  }
}

/* đếm ngược / thông báo lớn giữa bãi cỏ */
.big {
  position: absolute;
  inset: 0;
  z-index: 5;
  display: grid;
  place-items: center;
  font: 800 calc(var(--cell) * 0.55) / 1 var(--title);
  color: #fff;
  text-shadow:
    0 4px 0 #c2410c,
    0 0 24px rgba(0, 0, 0, 0.3);
  pointer-events: none;
  opacity: 0;
}
.big.pop {
  animation: big 0.65s ease-out forwards;
}
.big.small {
  font-size: calc(var(--cell) * 0.28);
}
@keyframes big {
  from {
    opacity: 0;
    transform: scale(1.6);
  }
  25% {
    opacity: 1;
    transform: scale(1);
  }
  75% {
    opacity: 1;
  }
  to {
    opacity: 0;
    transform: scale(0.9);
  }
}

/* búa theo con trỏ; đầu búa (góc trên trái) nằm đúng chỗ bấm */
.hammer {
  position: fixed;
  left: 0;
  top: 0;
  z-index: 30;
  font-size: calc(var(--cell) * 0.5);
  line-height: 1;
  pointer-events: none;
  opacity: 0;
  transform-origin: 78% 78%;
  transform: translate(-28%, -30%) rotate(28deg);
  transition: opacity 0.15s;
}
.hammer.show {
  opacity: 1;
}
.hammer.swing {
  animation: swing 0.16s ease-out;
}
@keyframes swing {
  45% {
    transform: translate(-28%, -30%) rotate(-22deg);
  }
}

/* ---------- Nút ---------- */
.tools {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.tool {
  height: 42px;
  padding: 0 16px;
  border: 0;
  border-radius: 12px;
  background: #fffdf6;
  box-shadow: 0 3px 0 #e2cfae;
  font-weight: 700;
  font-size: 14px;
  color: #7a5a35;
}
.tool:hover {
  background: #fff;
}
.tool:active {
  transform: translateY(2px);
  box-shadow: 0 1px 0 #e2cfae;
}
.keys {
  margin: 0;
  font-size: 12px;
  color: #7a6a55;
  text-align: center;
}

/* ---------- Hộp thoại ---------- */
.overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 16px;
  background: rgba(40, 30, 10, 0.35);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.card {
  width: min(440px, 100%);
  max-height: calc(100vh - 32px);
  overflow: auto;
  padding: 18px 22px 18px;
  border-radius: 22px;
  background: #fffdf6;
  box-shadow:
    0 6px 0 #e2cfae,
    0 20px 50px rgba(0, 0, 0, 0.3);
  text-align: center;
  animation: cardIn 0.3s cubic-bezier(0.3, 1.5, 0.5, 1);
}
@keyframes cardIn {
  from {
    transform: scale(0.85);
    opacity: 0;
  }
}
.ico {
  font-size: 42px;
  line-height: 1;
}
.card h2 {
  margin: 4px 0 10px;
  font: 800 30px/1.1 var(--title);
  color: var(--brown);
}
.card p {
  margin: 0 0 14px;
  color: #6b5a45;
  line-height: 1.55;
}
.seg {
  display: flex;
  gap: 4px;
  margin-bottom: 12px;
  padding: 4px;
  border-radius: 14px;
  background: #f1e4cc;
}
.seg button {
  flex: 1;
  padding: 6px 4px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  font-weight: 800;
  font-size: 15px;
  color: #7a5a35;
}
.seg button small {
  display: block;
  font-size: 11px;
  font-weight: 600;
  opacity: 0.8;
}
.seg button.on {
  background: #fff;
  color: #e8590c;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.12);
}
.legend {
  margin: 0 0 10px;
  padding: 0;
  list-style: none;
  text-align: left;
}
.legend li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 4px 6px;
  border-bottom: 1px dashed #ecdcc0;
  font-size: 14px;
}
.legend li > span {
  width: 46px;
  font-size: 24px;
  text-align: center;
  white-space: nowrap;
}
.legend li b {
  margin-left: auto;
  color: #2b8a3e;
  white-space: nowrap;
}
.legend li b.bad {
  color: #e03131;
}
.legend .helmet-ico {
  position: relative;
}
.helmet-ico i {
  position: absolute;
  left: 50%;
  top: -7px;
  font-size: 15px;
  font-style: normal;
  transform: translateX(-50%);
}
.gold-ico {
  filter: sepia(1) saturate(5) hue-rotate(-12deg) brightness(1.15);
}
.card p.tip {
  margin-bottom: 14px;
  font-size: 13px;
}
.btns {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.btn {
  min-width: 110px;
  height: 46px;
  padding: 0 18px;
  border: 0;
  border-radius: 14px;
  background: #f1e4cc;
  box-shadow: 0 3px 0 #dcc6a0;
  font-weight: 800;
  font-size: 16px;
  color: #7a5a35;
}
.btn.primary {
  background: linear-gradient(#ffa94d, #f76707);
  box-shadow: 0 3px 0 #c2410c;
  color: #fff;
}
.btn:active {
  transform: translateY(2px);
  box-shadow: none;
}
.final {
  font: 800 64px/1 var(--title);
  color: #e8590c;
}
.final-sub {
  margin-top: 2px;
  font-size: 13px;
  font-weight: 700;
  color: var(--muted);
}
.results {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 12px 0 16px;
}
.results div {
  padding: 7px 6px;
  border-radius: 12px;
  background: #f8efdd;
}
.results small {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}
.results b {
  font: 800 22px/1.2 var(--title);
}

@media (max-width: 520px) {
  .back {
    position: static;
    align-self: flex-start;
  }
  h1 {
    display: none;
  }
  .stats {
    gap: 6px;
  }
  .stat {
    min-width: 0;
    padding: 4px 9px 2px;
  }
  .stat small {
    font-size: 9px;
  }
  .stat b {
    font-size: 21px;
  }
}