:root {
  --leaf-dark: #0a1c10;
  --leaf-mid: #143820;
  --leaf: #1e5c2c;
  --leaf-light: #4aa04f;
  --gold: #f0c674;
  --gold-hi: #ffd57a;
  --sun: #fff2c4;
  --bark: #5a3a20;
  --text: #f0f4ec;
  --muted: #9dc7a5;
  --border: rgba(255, 255, 255, 0.08);
  --border-hi: rgba(240, 198, 116, 0.5);
  --card: rgba(10, 24, 15, 0.72);
  --card-hi: rgba(20, 44, 26, 0.9);
  --danger: #c26b5a;
  --evt-boom: #ff8a3d;
  --evt-rain: #6cbef0;
  --evt-fever: #ff5a7a;
  --evt-golden: #ffd25a;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; overflow-x: hidden; }

body {
  color: var(--text);
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  background:
    radial-gradient(1400px 700px at 50% -100px, #2b5a35 0%, #143820 45%, #071510 100%),
    linear-gradient(180deg, #0d2b18 0%, #060f0a 100%);
  min-height: 100vh;
  position: relative;
  padding: 16px 20px 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* ---------- Background scene ---------- */
.jungle-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.sun {
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 320px;
  height: 320px;
  background: radial-gradient(circle at 50% 50%, var(--sun) 0%, rgba(255, 242, 196, 0.3) 40%, transparent 70%);
  filter: blur(4px);
}
.silhouette {
  position: absolute;
  bottom: 0;
  width: 22vw;
  min-width: 200px;
  max-width: 360px;
  height: 70vh;
  opacity: 0.9;
}
.silhouette.left { left: 0; }
.silhouette.right { right: 0; }

body > * { position: relative; z-index: 1; }

/* ---------- Topbar ---------- */
.topbar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  background: var(--card);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px 20px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-emoji { font-size: 2.2rem; filter: drop-shadow(0 4px 8px rgba(240, 198, 116, 0.35)); }
.brand h1 { font-size: 1.5rem; font-weight: 800; letter-spacing: 0.5px; color: var(--gold); line-height: 1; }
.brand .tagline { font-size: 0.78rem; color: var(--muted); margin-top: 4px; }

.stats {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}
.stat { text-align: center; min-width: 90px; }
.stat .value {
  display: block;
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  transition: transform 0.15s;
}
.stat .label {
  display: block;
  font-size: 0.72rem;
  color: var(--muted);
  margin-top: 4px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}
.stat.big .value {
  font-size: 2.2rem;
  color: var(--gold);
  text-shadow: 0 0 20px rgba(240, 198, 116, 0.3);
}
.stat.big .label .emoji { font-size: 0.9rem; }
.stat.pop .value { transform: scale(1.15); }
.prestige-stat .value { color: #b6e0bd; }

.topbar-actions { display: flex; gap: 8px; align-items: center; }

.prestige-btn {
  background: linear-gradient(180deg, #8a6a2e, #5c4620);
  color: #fff8dc;
  border: 1px solid #c99f4c;
  border-radius: 10px;
  padding: 10px 16px;
  font-family: inherit;
  font-weight: 700;
  font-size: 0.85rem;
  cursor: pointer;
  line-height: 1.2;
  min-width: 130px;
  box-shadow: 0 4px 14px rgba(201, 159, 76, 0.3);
  transition: transform 0.08s, filter 0.15s;
}
.prestige-btn:hover:not(:disabled) { filter: brightness(1.15); transform: translateY(-1px); }
.prestige-btn:active { transform: translateY(1px); }
.prestige-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.prestige-btn small { display: block; font-size: 0.68rem; opacity: 0.85; margin-top: 2px; font-weight: 400; }

.icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.3);
  color: var(--text);
  font-size: 1.1rem;
  cursor: pointer;
  font-family: inherit;
  transition: filter 0.15s, border-color 0.15s;
}
.icon-btn:hover { filter: brightness(1.2); border-color: var(--border-hi); }
.icon-btn.danger:hover { border-color: var(--danger); color: var(--danger); }

/* ---------- Combo strip ---------- */
.combo-strip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 6px 16px;
  background: rgba(10, 24, 15, 0.5);
  border: 1px solid var(--border);
  border-radius: 999px;
  max-width: 500px;
  margin: 0 auto;
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity 0.25s, transform 0.25s;
}
.combo-strip.active { opacity: 1; transform: translateY(0); }
.combo-label {
  font-size: 0.78rem;
  color: var(--muted);
  white-space: nowrap;
}
.combo-label #combo-x {
  color: var(--gold);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.combo-bar {
  flex: 1;
  height: 6px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  overflow: hidden;
}
.combo-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--leaf-light), var(--gold), var(--evt-fever));
  border-radius: 999px;
  box-shadow: 0 0 12px rgba(240, 198, 116, 0.5);
  transition: width 0.08s linear;
}

/* ---------- Main layout ---------- */
main {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 18px;
  align-items: stretch;
}

/* ---------- Scene / tree ---------- */
.scene {
  background: linear-gradient(180deg, rgba(20, 56, 32, 0.45), rgba(10, 28, 16, 0.65));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 20px 20px;
  min-height: 520px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4), inset 0 0 60px rgba(0, 0, 0, 0.3);
  transition: box-shadow 0.4s;
}
.scene.event-boom { box-shadow: 0 10px 40px rgba(0,0,0,0.4), inset 0 0 80px rgba(255, 138, 61, 0.35); }
.scene.event-rain { box-shadow: 0 10px 40px rgba(0,0,0,0.4), inset 0 0 80px rgba(108, 190, 240, 0.35); }
.scene.event-fever { box-shadow: 0 10px 40px rgba(0,0,0,0.4), inset 0 0 80px rgba(255, 90, 122, 0.35); }
.scene.event-golden { box-shadow: 0 10px 40px rgba(0,0,0,0.4), inset 0 0 100px rgba(255, 210, 90, 0.6); }
.scene.shake { animation: shake 0.4s ease; }
@keyframes shake {
  0%, 100% { transform: translate(0, 0); }
  20% { transform: translate(-4px, 2px); }
  40% { transform: translate(4px, -2px); }
  60% { transform: translate(-3px, 3px); }
  80% { transform: translate(3px, -1px); }
}

.event-banner {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid var(--border-hi);
  padding: 6px 14px;
  border-radius: 999px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  z-index: 5;
  animation: banner-pulse 1.5s ease-in-out infinite;
  backdrop-filter: blur(6px);
}
.event-banner.hidden { display: none; }
.event-banner .event-icon { font-size: 1.2rem; }
.event-banner .event-name { font-weight: 700; color: var(--gold); }
.event-banner .event-timer { color: var(--muted); font-variant-numeric: tabular-nums; font-size: 0.78rem; }
@keyframes banner-pulse {
  0%, 100% { box-shadow: 0 0 0 rgba(240,198,116,0.4); }
  50% { box-shadow: 0 0 20px rgba(240,198,116,0.5); }
}

.tree-button {
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  position: relative;
  transition: transform 0.08s ease-out;
  filter: drop-shadow(0 20px 25px rgba(0, 0, 0, 0.5));
  outline: none;
  animation: sway 6s ease-in-out infinite;
  z-index: 2;
}
.tree-button:active { transform: scale(0.94); }
.tree-button.wiggle .tree-svg { animation: wiggle 0.25s ease-out; }
.tree-svg {
  width: 340px;
  max-width: 80vw;
  height: auto;
  display: block;
}
.tap-hint {
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gold);
  color: #3a2810;
  font-weight: 800;
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 1px;
  text-transform: uppercase;
  animation: bob 1.4s ease-in-out infinite;
  pointer-events: none;
}
.tree-button.tapped-once .tap-hint { display: none; }

@keyframes wiggle {
  0% { transform: rotate(0); }
  30% { transform: rotate(-2deg); }
  60% { transform: rotate(2deg); }
  100% { transform: rotate(0); }
}
@keyframes sway {
  0%, 100% { transform: translateX(0) rotate(0); }
  50% { transform: translateX(0) rotate(0.7deg); }
}
@keyframes bob {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, -4px); }
}

.floaters, .fireflies, .golden-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}
.golden-layer { pointer-events: none; }
.floater {
  position: absolute;
  color: var(--gold-hi);
  font-weight: 800;
  font-size: 1.1rem;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.7), 0 0 12px rgba(240, 198, 116, 0.6);
  animation: floatUp 1.1s ease-out forwards;
  pointer-events: none;
  user-select: none;
}
.floater.crit { color: #fff; font-size: 1.6rem; text-shadow: 0 0 16px var(--gold), 0 2px 8px rgba(0,0,0,0.8); }
.floater.banana-drop { font-size: 1.4rem; animation: dropDown 1.2s ease-in forwards; }
.floater.combo { color: var(--evt-fever); }

@keyframes floatUp {
  0%   { transform: translateY(0) scale(0.6); opacity: 0; }
  15%  { transform: translateY(-6px) scale(1.1); opacity: 1; }
  100% { transform: translateY(-80px) scale(1); opacity: 0; }
}
@keyframes dropDown {
  0%   { transform: translateY(0) rotate(0); opacity: 1; }
  100% { transform: translateY(180px) rotate(720deg); opacity: 0; }
}

.firefly {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, #fff9c4 0%, #f0c674 40%, transparent 70%);
  filter: blur(0.5px);
  animation: firefly-blink 3s ease-in-out infinite;
  pointer-events: none;
}
@keyframes firefly-blink {
  0%, 100% { opacity: 0.15; }
  50% { opacity: 0.95; }
}

.golden-banana {
  position: absolute;
  font-size: 2.2rem;
  cursor: pointer;
  filter: drop-shadow(0 0 12px var(--gold)) drop-shadow(0 0 24px rgba(240,198,116,0.7));
  animation: golden-float 4s ease-in-out infinite;
  pointer-events: auto;
  transition: transform 0.12s;
  user-select: none;
  z-index: 10;
}
.golden-banana:hover { transform: scale(1.15); }
.golden-banana.leaving { animation: golden-out 0.3s ease-in forwards; }
@keyframes golden-float {
  0%, 100% { transform: translateY(0) rotate(-8deg); }
  50% { transform: translateY(-14px) rotate(8deg); }
}
@keyframes golden-out {
  to { transform: scale(0) rotate(180deg); opacity: 0; }
}

.scene-footer { width: 100%; max-width: 400px; }
.progress-block {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 12px;
}
.progress-label { font-size: 0.72rem; color: var(--muted); margin-bottom: 6px; }
.progress-label span { color: var(--gold); font-weight: 600; }
.progress-bar {
  height: 8px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--leaf-light), var(--gold));
  border-radius: 999px;
  transition: width 0.3s ease;
  box-shadow: 0 0 12px rgba(240, 198, 116, 0.5);
}

/* ---------- Shop ---------- */
.shop {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

.tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.25);
}
.tab {
  flex: 1;
  background: none;
  border: none;
  padding: 12px 6px;
  color: var(--muted);
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}
.tab:hover { color: var(--text); background: rgba(255, 255, 255, 0.03); }
.tab.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
  background: rgba(240, 198, 116, 0.06);
}

.bulk-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.15);
}
.bulk-bar.hidden { display: none; }
.bulk-label { font-size: 0.72rem; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; }
.bulk-toggle {
  display: inline-flex;
  background: rgba(0, 0, 0, 0.4);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}
.bulk-toggle button {
  width: auto;
  padding: 4px 10px;
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 0.72rem;
  border-radius: 999px;
  cursor: pointer;
  font-family: inherit;
  font-weight: 600;
  transition: color 0.15s, background 0.15s;
}
.bulk-toggle button.active {
  background: var(--gold);
  color: #3a2810;
}

.shop-body {
  flex: 1;
  overflow-y: auto;
  padding: 10px;
  max-height: 600px;
}
.shop-body::-webkit-scrollbar { width: 8px; }
.shop-body::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 4px; }

.tab-panel { display: none; }
.tab-panel.active { display: flex; flex-direction: column; gap: 8px; }

.item {
  display: grid;
  grid-template-columns: 44px 1fr auto;
  gap: 10px;
  align-items: center;
  background: var(--card-hi);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 12px;
  cursor: pointer;
  transition: transform 0.08s, border-color 0.15s, filter 0.15s;
  font-family: inherit;
  color: var(--text);
  text-align: left;
  width: 100%;
}
.item:hover:not(:disabled) { border-color: var(--border-hi); transform: translateY(-1px); }
.item:active { transform: translateY(1px); }
.item:disabled, .item.locked { cursor: not-allowed; opacity: 0.5; }
.item.affordable { border-color: rgba(74, 160, 79, 0.7); box-shadow: 0 0 0 1px rgba(74, 160, 79, 0.35), 0 0 20px rgba(74, 160, 79, 0.15); }
.item.locked { filter: grayscale(0.8); }

.item .item-icon {
  font-size: 1.8rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.35);
  border-radius: 10px;
}
.item .item-name {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 6px;
}
.item .item-name .tag {
  font-size: 0.62rem;
  background: rgba(240, 198, 116, 0.2);
  color: var(--gold);
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 700;
  letter-spacing: 0.5px;
}
.item .item-name .qty {
  font-size: 0.68rem;
  background: rgba(74, 160, 79, 0.25);
  color: #b6e0bd;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: 700;
}
.item .item-desc {
  font-size: 0.74rem;
  color: var(--muted);
  margin-top: 2px;
  line-height: 1.3;
}
.item .item-right {
  text-align: right;
  min-width: 84px;
}
.item .item-cost {
  color: var(--gold);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
  white-space: nowrap;
}
.item .item-cost.expensive { color: var(--danger); }
.item .item-owned {
  color: var(--muted);
  font-size: 0.7rem;
  margin-top: 2px;
}
.item.upgrade { grid-template-columns: 36px 1fr auto; }
.item.upgrade .item-icon { width: 36px; height: 36px; font-size: 1.3rem; }

.item.achievement { cursor: default; grid-template-columns: 36px 1fr; padding: 8px 10px; }
.item.achievement .item-icon { width: 36px; height: 36px; font-size: 1.2rem; filter: grayscale(1) opacity(0.5); }
.item.achievement.done .item-icon { filter: none; }
.item.achievement.done { border-color: var(--border-hi); background: rgba(240, 198, 116, 0.06); }
.item.achievement .item-desc { font-size: 0.72rem; }

/* ---------- Stats tab ---------- */
#stats.tab-panel.active { gap: 12px; }
.stats-group {
  background: var(--card-hi);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
}
.stats-group h3 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--gold);
  margin-bottom: 8px;
}
.stats-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 0.82rem;
  padding: 4px 0;
  border-bottom: 1px dashed rgba(255,255,255,0.06);
}
.stats-row:last-child { border-bottom: none; }
.stats-row span { color: var(--muted); }
.stats-row strong { color: var(--text); font-variant-numeric: tabular-nums; }

/* ---------- Toasts ---------- */
.toasts {
  position: fixed;
  top: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 100;
  pointer-events: none;
  max-width: 320px;
}
.toast {
  background: linear-gradient(180deg, rgba(30, 60, 40, 0.98), rgba(10, 24, 15, 0.98));
  border: 1px solid var(--border-hi);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 12px;
  font-size: 0.85rem;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6), 0 0 24px rgba(240, 198, 116, 0.25);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toast-in 0.3s ease;
}
.toast .toast-icon { font-size: 1.4rem; }
.toast .toast-title { font-weight: 800; color: var(--gold); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 1px; }
.toast .toast-text { color: var(--text); font-size: 0.82rem; margin-top: 1px; }
.toast.leaving { animation: toast-out 0.4s ease forwards; }
.toast.event { border-color: var(--evt-fever); }
.toast.golden { border-color: var(--evt-golden); box-shadow: 0 12px 40px rgba(0,0,0,0.6), 0 0 30px rgba(255,210,90,0.5); }
@keyframes toast-in { from { transform: translateX(30px); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes toast-out { to { transform: translateX(30px); opacity: 0; } }

/* ---------- Footer ---------- */
.learning-notes {
  background: rgba(10, 24, 15, 0.6);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 18px 22px;
  max-width: 900px;
  margin: 8px auto 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.55;
}
.learning-notes h2 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 1.4px;
  color: var(--gold);
  margin-bottom: 8px;
}
.learning-notes p { margin-bottom: 8px; }
.learning-notes p:last-child { margin-bottom: 0; }
.notes-meta { font-size: 0.76rem; color: var(--muted); opacity: 0.75; }

footer {
  text-align: center;
  font-size: 0.72rem;
  color: var(--muted);
  opacity: 0.7;
}
footer kbd {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  padding: 1px 5px;
  font-family: inherit;
  font-size: 0.7rem;
}

@media (max-width: 900px) {
  main { grid-template-columns: 1fr; }
  .topbar { grid-template-columns: 1fr; text-align: center; }
  .brand { justify-content: center; }
  .stats { justify-content: center; }
  .topbar-actions { justify-content: center; }
  .shop-body { max-height: 400px; }
}