/* MathQuest Academy — kid-friendly theme */

:root {
  --ink: #2b2d42;
  --ink-soft: #5c5f7a;
  --bg: #eef6ff;
  --panel: #ffffff;
  --brand: #6c5ce7;
  --brand-2: #a29bfe;
  --accent: #fbbf24;
  --accent-2: #f472b6;
  --good: #22c55e;
  --bad: #ef4444;
  --info: #38bdf8;
  --radius: 18px;
  --radius-lg: 26px;
  --shadow: 0 8px 24px rgba(43, 45, 66, 0.14);
  --shadow-sm: 0 3px 10px rgba(43, 45, 66, 0.12);
  --font: ui-rounded, "SF Pro Rounded", "Baloo 2", "Segoe UI", "Verdana", system-ui, sans-serif;
}

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

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  user-select: none;
}

#app { position: fixed; inset: 0; }

button {
  font-family: var(--font);
  border: none;
  cursor: pointer;
  color: inherit;
  background: none;
}

/* ---------- screen shell ---------- */
.screen {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  animation: screen-in 0.28s ease;
}
@keyframes screen-in {
  from { opacity: 0; transform: translateY(14px) scale(0.99); }
  to { opacity: 1; transform: none; }
}

.scene {
  position: relative;
  flex: 1;
  overflow: hidden;
}

/* ---------- HUD ---------- */
.hud {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  pointer-events: none;
}
.hud > * { pointer-events: auto; }

.hud-resource {
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 999px;
  padding: 6px 14px 6px 8px;
  font-weight: 800;
  font-size: 15px;
  box-shadow: var(--shadow-sm);
}
.hud-resource .emoji { font-size: 18px; }

.hud-level {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 999px;
  padding: 5px 14px;
  box-shadow: var(--shadow-sm);
  min-width: 110px;
}
.hud-level .lvl-label { font-size: 11px; font-weight: 800; color: var(--ink-soft); letter-spacing: 0.4px; }
.hud-level .xp-track { width: 100%; height: 7px; background: #e5e7eb; border-radius: 99px; overflow: hidden; margin-top: 2px; }
.hud-level .xp-fill { height: 100%; background: linear-gradient(90deg, var(--brand), var(--brand-2)); border-radius: 99px; transition: width 0.4s ease; }

.hud-spacer { flex: 1; pointer-events: none !important; }

.hud-icon-btn {
  width: 46px;
  height: 46px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-sm);
  font-size: 22px;
  display: grid;
  place-items: center;
  transition: transform 0.12s ease;
}
.hud-icon-btn:active { transform: scale(0.9); }
.hud-icon-btn .badge {
  position: absolute;
  transform: translate(14px, -14px);
  background: var(--bad);
  color: #fff;
  font-size: 11px;
  font-weight: 900;
  border-radius: 99px;
  min-width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
  padding: 0 4px;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 800;
  border-radius: 16px;
  padding: 12px 22px;
  font-size: 16px;
  background: var(--panel);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
  transition: transform 0.12s ease, box-shadow 0.12s ease, filter 0.12s ease;
  border: 3px solid transparent;
}
.btn:active { transform: scale(0.95); }
.btn.primary { background: linear-gradient(135deg, var(--brand), #8b5cf6); color: #fff; box-shadow: 0 6px 16px rgba(108, 92, 231, 0.4); }
.btn.gold { background: linear-gradient(135deg, #fbbf24, #f59e0b); color: #78350f; box-shadow: 0 6px 16px rgba(245, 158, 11, 0.4); }
.btn.pink { background: linear-gradient(135deg, #f472b6, #ec4899); color: #fff; box-shadow: 0 6px 16px rgba(236, 72, 153, 0.4); }
.btn.green { background: linear-gradient(135deg, #34d399, #10b981); color: #064e3b; box-shadow: 0 6px 16px rgba(16, 185, 129, 0.4); }
.btn.ghost { background: rgba(255, 255, 255, 0.7); }
.btn.small { padding: 8px 14px; font-size: 14px; border-radius: 12px; }
.btn:disabled { filter: grayscale(0.6) opacity(0.6); cursor: not-allowed; }

/* ---------- panels & cards ---------- */
.panel {
  background: var(--panel);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 18px;
}

.card {
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 14px;
  transition: transform 0.12s ease;
}
.card.tappable { cursor: pointer; }
.card.tappable:active { transform: scale(0.97); }

/* ---------- dialog ---------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(20, 22, 40, 0.55);
  display: grid;
  place-items: center;
  z-index: 100;
  padding: 20px;
  animation: fade-in 0.18s ease;
}
@keyframes fade-in { from { opacity: 0; } to { opacity: 1; } }

.modal {
  background: var(--panel);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  max-width: 560px;
  width: 100%;
  max-height: 86vh;
  overflow-y: auto;
  padding: 22px;
  animation: pop-in 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes pop-in {
  from { opacity: 0; transform: scale(0.92) translateY(10px); }
  to { opacity: 1; transform: none; }
}

.modal-title { font-size: 22px; font-weight: 900; margin: 0 0 6px; }
.modal-sub { color: var(--ink-soft); margin: 0 0 16px; font-size: 14px; }

/* ---------- toast ---------- */
#toast-root {
  position: fixed;
  bottom: 26px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  pointer-events: none;
}
.toast {
  background: var(--ink);
  color: #fff;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  box-shadow: var(--shadow);
  animation: toast-in 0.25s ease;
}
.toast.leaving { animation: toast-out 0.3s ease forwards; }
@keyframes toast-in { from { opacity: 0; transform: translateY(16px) scale(0.9); } to { opacity: 1; transform: none; } }
@keyframes toast-out { to { opacity: 0; transform: translateY(10px); } }

/* ---------- misc ---------- */
.row { display: flex; align-items: center; gap: 10px; }
.col { display: flex; flex-direction: column; gap: 10px; }
.wrap { flex-wrap: wrap; }
.center { justify-content: center; }
.between { justify-content: space-between; }
.grow { flex: 1; }
.mt { margin-top: 12px; }
.muted { color: var(--ink-soft); }
.small { font-size: 13px; }
.bold { font-weight: 800; }

.bar {
  height: 14px;
  background: #e5e7eb;
  border-radius: 99px;
  overflow: hidden;
  position: relative;
}
.bar > i {
  display: block;
  height: 100%;
  border-radius: 99px;
  transition: width 0.5s ease;
}

.badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  background: #ede9fe;
  color: #6d28d9;
}

.divider { height: 1px; background: #eef0f4; margin: 12px 0; }

.grid { display: grid; gap: 12px; }
.grid-2 { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }

/* scrollbar (kid friendly, subtle) */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #c7c9d6; border-radius: 99px; }
::-webkit-scrollbar-track { background: transparent; }

/* wobble animation for pets on the hub */
@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}
.bob { animation: bob 2.4s ease-in-out infinite; }

@keyframes wiggle {
  0%, 100% { transform: rotate(-3deg); }
  50% { transform: rotate(3deg); }
}
.wiggle { animation: wiggle 1.6s ease-in-out infinite; }

/* battle shake */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-10px); }
  40% { transform: translateX(10px); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(6px); }
}
.shake { animation: shake 0.4s ease; }

/* party embers / sparkle confetti */
@keyframes sparkle-fade { 0% { opacity: 0; transform: scale(0.4); } 30% { opacity: 1; } 100% { opacity: 0; transform: scale(1.4) translateY(-30px); } }
.sparkle-fx { position: absolute; pointer-events: none; font-size: 22px; animation: sparkle-fade 1.2s ease forwards; }

input[type="text"], input[type="number"], select {
  font-family: var(--font);
  font-size: 16px;
  padding: 10px 14px;
  border-radius: 14px;
  border: 3px solid #e5e7eb;
  outline: none;
  background: #fff;
  color: var(--ink);
  width: 100%;
}
input:focus, select:focus { border-color: var(--brand-2); }