/* =========================================================
   MY LITTLE CONVENIENCE STORE — STYLESHEET
   A bright, playful, high-contrast design for Grade 1 kids.
   Palette inspired by a Philippine sari-sari store:
   awning red/white stripes, wood shelves, sunny yellow, mint.
   ========================================================= */

:root {
  --sun-yellow: #ffc93c;
  --awning-red: #e85d4e;
  --leaf-green: #3fa76b;
  --sky-blue: #3d9be9;
  --wood: #b9793f;
  --wood-dark: #8c5a2b;
  --cream: #fff8e9;
  --ink: #3a2e1f;
  --soft-shadow: rgba(58, 46, 31, 0.18);

  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  font-family: "Nunito", sans-serif;
  color: var(--ink);
  background: repeating-linear-gradient(
    135deg,
    var(--cream) 0px,
    var(--cream) 40px,
    #fcefd2 40px,
    #fcefd2 80px
  );
}

h1,
h2 {
  font-family: "Baloo 2", sans-serif;
}

button {
  font-family: "Baloo 2", sans-serif;
  cursor: pointer;
  border: none;
}

/* ---------- Screen switching ---------- */
.screen {
  display: none;
  min-height: 100vh;
  padding: 20px;
  animation: fadeIn 0.35s ease;
}
.screen.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-size: 1.15rem;
  font-weight: 700;
  padding: 16px 28px;
  border-radius: 999px;
  color: #fff;
  background: var(--leaf-green);
  box-shadow:
    0 6px 0 #2c7d4f,
    0 10px 18px var(--soft-shadow);
  transition:
    transform 0.12s ease,
    box-shadow 0.12s ease;
  width: 100%;
  max-width: 420px;
}
.btn:active {
  transform: translateY(4px);
  box-shadow:
    0 2px 0 #2c7d4f,
    0 4px 10px var(--soft-shadow);
}
.btn:focus-visible {
  outline: 4px solid #1c4f30;
  outline-offset: 3px;
}
.btn:disabled {
  background: #c9c2b4;
  box-shadow: 0 6px 0 #a8a190;
  cursor: not-allowed;
}
.btn-big {
  font-size: 1.4rem;
  padding: 20px 32px;
}
.btn-bounce {
  animation: bounce 1.8s ease-in-out infinite;
}
@keyframes bounce {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
}

.btn-checkout {
  background: var(--awning-red);
  box-shadow:
    0 6px 0 #b8402f,
    0 10px 18px var(--soft-shadow);
}
.btn-checkout:active {
  box-shadow: 0 2px 0 #b8402f;
}

.btn-secondary {
  background: #fff;
  color: var(--ink);
  border: 3px solid var(--wood);
  box-shadow: 0 6px 0 #d8c9ab;
}
.btn-secondary:active {
  box-shadow: 0 2px 0 #d8c9ab;
}

/* ---------- Welcome / Final screens ---------- */
#screen-welcome,
#screen-final {
  display: none;
  align-items: center;
  justify-content: center;
}
#screen-welcome.active,
#screen-final.active {
  display: flex;
}

.welcome-card {
  max-width: 480px;
  margin: 40px auto;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  box-shadow:
    0 14px 0 var(--wood),
    0 20px 30px var(--soft-shadow);
  position: relative;
}
.roof {
  position: absolute;
  top: -36px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 130px solid transparent;
  border-right: 130px solid transparent;
  border-bottom: 46px solid var(--awning-red);
  filter: drop-shadow(0 4px 0 #b8402f);
}
.store-title {
  font-size: 2.1rem;
  margin: 16px 0 4px;
  color: var(--ink);
  line-height: 1.2;
}
.subtitle {
  font-size: 1.2rem;
  color: var(--wood-dark);
  margin-bottom: 20px;
  font-weight: 700;
}

.money-badge {
  display: inline-flex;
  flex-direction: column;
  background: var(--sun-yellow);
  border-radius: var(--radius-md);
  padding: 12px 28px;
  margin-bottom: 24px;
  box-shadow: inset 0 -4px 0 rgba(0, 0, 0, 0.08);
}
.badge-label {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--wood-dark);
}
.badge-amount {
  font-size: 2rem;
  font-weight: 800;
  font-family: "Baloo 2", sans-serif;
}

#btn-start-shopping + #btn-home-quiz {
  margin-top: 12px;
}

.welcome-hint {
  margin-top: 18px;
  color: var(--wood-dark);
  font-weight: 600;
}

.final-stars {
  font-size: 1.8rem;
  font-weight: 800;
  background: var(--sun-yellow);
  border-radius: var(--radius-md);
  padding: 12px 24px;
  display: inline-block;
  margin: 12px 0 18px;
}
.final-caption {
  font-weight: 700;
  margin-bottom: 6px;
}
.final-list {
  list-style: none;
  padding: 0;
  margin: 0 0 24px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--leaf-green);
  text-align: left;
  display: inline-block;
}
.final-list li {
  margin: 4px 0;
}

/* ---------- Top bar (store / payment / quiz screens) ---------- */
.topbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--wood);
  color: #fff;
  border-radius: var(--radius-md);
  padding: 14px 22px;
  margin-bottom: 18px;
  box-shadow: 0 6px 0 var(--wood-dark);
}
.topbar-title {
  font-size: 1.4rem;
  font-weight: 800;
}

.topbar-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}
.topbar-btn {
  width: auto;
  max-width: none;
  padding: 10px 18px;
  font-size: 1rem;
}
.money-pill {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.money-pill-item {
  background: rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-sm);
  padding: 8px 14px;
  text-align: center;
  min-width: 90px;
}
.pill-label {
  display: block;
  font-size: 0.75rem;
  opacity: 0.85;
  font-weight: 700;
}
.pill-value {
  display: block;
  font-size: 1.15rem;
  font-weight: 800;
}

.panel-heading {
  font-size: 1.3rem;
  margin: 4px 0 14px;
  color: var(--ink);
}

/* ---------- Store screen ---------- */
.store-layout {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 18px;
  max-width: 1100px;
  margin: 0 auto;
}
@media (max-width: 820px) {
  .store-layout,
  .payment-layout {
    grid-template-columns: 1fr;
  }
}

.products-panel,
.cart-panel,
.wallet-panel,
.payment-panel {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 18px;
  box-shadow:
    0 8px 0 #e7dcc2,
    0 12px 20px var(--soft-shadow);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 14px;
}
.product-card {
  background: var(--cream);
  border-radius: var(--radius-md);
  padding: 14px 10px;
  text-align: center;
  border: 3px solid #f0e3c4;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.product-emoji {
  font-size: 2.4rem;
}
.product-name {
  font-weight: 800;
  font-size: 1rem;
}
.product-price {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--awning-red);
}
.product-add {
  margin-top: 6px;
  background: var(--sky-blue);
  color: #fff;
  font-weight: 800;
  font-size: 0.85rem;
  border-radius: 999px;
  padding: 8px 14px;
  box-shadow: 0 4px 0 #2b78b8;
  width: 100%;
}
.product-add:active {
  transform: translateY(3px);
  box-shadow: 0 1px 0 #2b78b8;
}

.cart-list {
  list-style: none;
  padding: 0;
  margin: 0 0 12px;
  min-height: 60px;
}
.cart-empty {
  color: #a89b7e;
  font-style: italic;
  font-weight: 600;
  padding: 10px 0;
}
.cart-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 2px dashed #eee0c2;
  font-weight: 700;
}
.cart-item-name {
  display: flex;
  align-items: center;
  gap: 8px;
}
.cart-item-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}
.qty-btn {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--sun-yellow);
  font-weight: 800;
  font-size: 1rem;
  line-height: 1;
}
.qty-value {
  min-width: 18px;
  text-align: center;
}
.remove-btn {
  background: none;
  color: var(--awning-red);
  font-size: 1.1rem;
  font-weight: 800;
  padding: 0 4px;
}

.cart-total-row,
.payment-total-row {
  display: flex;
  justify-content: space-between;
  font-size: 1.25rem;
  font-weight: 800;
  border-top: 3px solid var(--wood);
  padding-top: 10px;
  margin-bottom: 14px;
}

.cart-message,
.quiz-feedback {
  min-height: 24px;
  font-weight: 800;
  text-align: center;
  margin-top: 10px;
}
.cart-message.error,
.quiz-feedback.wrong {
  color: var(--awning-red);
}
.cart-message.success,
.quiz-feedback.correct {
  color: var(--leaf-green);
}

/* ---------- Payment screen ---------- */
.payment-layout {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 18px;
  max-width: 1100px;
  margin: 0 auto 20px;
}

.wallet-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 12px;
}

.money-card {
  border-radius: var(--radius-md);
  padding: 8px 6px 10px;
  text-align: center;
  font-weight: 800;
  font-size: 1.15rem;
  color: #fff;
  box-shadow: 0 5px 0 rgba(0, 0, 0, 0.12);
  transition:
    transform 0.12s ease,
    box-shadow 0.12s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: transparent;
  border: none;
}
.money-card:active {
  transform: scale(0.96);
}
.money-card .money-emoji {
  font-size: 1.6rem;
}
.money-card .money-image {
  display: block;
  width: 100%;
  max-width: 110px;
  height: 72px;
  object-fit: contain;
  border-radius: 12px;
  background: transparent;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.12);
}
.money-card.bill {
  position: relative;
  overflow: visible;
  background: transparent;
  border: none;
  border-radius: 14px;
  min-height: 110px;
  color: var(--ink);
  box-shadow: none;
}
.money-card.coin {
  background: transparent;
  color: var(--ink);
  border-radius: 50%;
  width: 94px;
  height: 94px;
  min-height: 94px;
  aspect-ratio: 1;
  box-shadow: none;
}
.money-card.coin .money-image {
  width: 90px;
  height: 90px;
  object-fit: contain;
  border-radius: 50%;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.12);
}
.money-card:disabled {
  opacity: 0.35;
  box-shadow: none;
}
.money-image {
  display: block;
  max-width: 110px;
  object-fit: contain;
}
.money-value {
  display: block;
  font-size: 0.8rem;
  line-height: 1.1;
  text-align: center;
  color: var(--ink);
  font-weight: 800;
}
.money-count {
  display: block;
  font-size: 0.72rem;
  opacity: 0.9;
  margin-top: 2px;
  color: var(--ink);
}
.money-coin-circle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: #fff4c7;
  color: var(--ink);
  border: 3px solid rgba(0, 0, 0, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 900;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.5);
}
.selected-chip {
  background: transparent;
  color: var(--ink);
  border: none;
  border-radius: 12px;
  padding: 0;
  box-shadow: none;
}
.selected-chip-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
}
.selected-chip .money-image {
  max-width: 96px;
  height: 62px;
}
.selected-chip .money-value {
  font-size: 0.68rem;
}
.selected-chip .money-coin-circle {
  width: 46px;
  height: 46px;
  font-size: 1rem;
}

.payment-selected {
  min-height: 90px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-content: flex-start;
  margin-bottom: 12px;
  border: 3px dashed #dccdaa;
  border-radius: var(--radius-md);
  padding: 12px;
  transition:
    background 0.15s ease,
    border-color 0.15s ease;
}
.payment-selected.drag-hover {
  background: #eefbf1;
  border-color: var(--leaf-green);
}
.payment-empty {
  color: #a89b7e;
  font-style: italic;
  font-weight: 600;
  margin: 0;
}
.selected-chip {
  background: transparent;
  color: inherit;
  font-weight: 800;
  border-radius: 12px;
  padding: 0;
  font-size: 0.95rem;
}

/* Draggable wallet cards get a grab cursor and lift on drag */
.money-card[draggable="true"] {
  cursor: grab;
}
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(255, 250, 240, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}
.loading-overlay[hidden] {
  display: none;
}
.loading-card {
  background: #fff;
  border-radius: 24px;
  padding: 20px 28px;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
  text-align: center;
  color: var(--wood-dark);
  font-weight: 800;
}
.loading-spinner {
  width: 52px;
  height: 52px;
  margin: 0 auto 12px;
  border: 6px solid #f1e4bb;
  border-top-color: var(--sky-blue);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.money-card.dragging {
  opacity: 0.4;
}

/* ---------- Payment / change animation stage ---------- */
.stage {
  max-width: 1100px;
  margin: 10px auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 30px;
  position: relative;
  min-height: 90px;
  font-size: 3rem;
}
.stage-caption {
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 1rem;
  font-weight: 800;
  background: #fff;
  padding: 4px 14px;
  border-radius: 999px;
  box-shadow: 0 3px 0 #e7dcc2;
  white-space: nowrap;
}
.flying-money {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  font-size: 1.6rem;
  display: flex;
  gap: 4px;
  opacity: 0;
}
.flying-money.fly-right {
  animation: flyRight 0.9s ease forwards;
}
.flying-money.fly-left {
  animation: flyLeft 0.9s ease forwards;
}
@keyframes flyRight {
  0% {
    opacity: 0;
    transform: translate(-160%, -50%);
  }
  20% {
    opacity: 1;
  }
  100% {
    opacity: 1;
    transform: translate(60%, -50%);
  }
}
@keyframes flyLeft {
  0% {
    opacity: 0;
    transform: translate(60%, -50%);
  }
  20% {
    opacity: 1;
  }
  100% {
    opacity: 1;
    transform: translate(-160%, -50%);
  }
}

/* ---------- Result screen ---------- */
.result-card {
  max-width: 640px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 26px 24px;
  box-shadow:
    0 10px 0 #e7dcc2,
    0 16px 24px var(--soft-shadow);
}
.result-headline {
  font-family: "Baloo 2", sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 14px;
  color: var(--leaf-green);
}
.result-headline.trouble {
  color: var(--awning-red);
}

.result-numbers {
  margin-bottom: 6px;
}
.result-row {
  display: flex;
  justify-content: space-between;
  padding: 8px 0;
  font-weight: 700;
  font-size: 1.1rem;
  border-bottom: 2px dashed #eee0c2;
}
.result-change strong {
  color: var(--awning-red);
}

.change-header {
  text-align: center;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--wood-dark);
  margin-top: 20px;
  margin-bottom: 10px;
}

.change-breakdown {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin: 14px 0 4px;
  min-height: 40px;
}
.change-sum {
  text-align: center;
  font-weight: 800;
  color: var(--wood-dark);
  margin-bottom: 10px;
}

.stars-earned {
  text-align: center;
  font-size: 1.6rem;
  margin: 10px 0;
}

.result-buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
}

/* ---------- Quiz screen ---------- */
.quiz-setup {
  max-width: 640px;
  margin: 0 auto 18px;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 20px 24px;
  box-shadow:
    0 8px 0 #e7dcc2,
    0 12px 20px var(--soft-shadow);
  text-align: center;
}
.quiz-config-title {
  margin: 0 0 12px;
  font-weight: 800;
  color: var(--wood-dark);
}
.quiz-length-options {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.quiz-length-btn {
  background: #f5efe3;
  color: var(--ink);
  border-radius: 999px;
  padding: 10px 16px;
  font-weight: 800;
  border: 2px solid #eadbb6;
}
.quiz-length-btn.active {
  background: var(--sky-blue);
  color: #fff;
  border-color: #2c7d4f;
}
.quiz-custom-wrap {
  margin-bottom: 14px;
}
.quiz-custom-wrap label {
  display: block;
  font-weight: 800;
  margin-bottom: 6px;
}
.quiz-custom-wrap input {
  width: 120px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 2px solid #e0d5b0;
  font-size: 1rem;
  text-align: center;
}
.quiz-card {
  max-width: 640px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  text-align: center;
  box-shadow:
    0 10px 0 #e7dcc2,
    0 16px 24px var(--soft-shadow);
}
.quiz-question {
  font-size: 1.35rem;
  margin-bottom: 14px;
}
.quiz-visual {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 18px;
  min-height: 50px;
}
.quiz-options {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.quiz-option {
  background: var(--sky-blue);
  color: #fff;
  font-weight: 800;
  font-size: 1.15rem;
  padding: 16px;
  border-radius: var(--radius-md);
  box-shadow: 0 5px 0 #2b78b8;
}
.quiz-option:active {
  transform: translateY(3px);
  box-shadow: 0 1px 0 #2b78b8;
}
.quiz-option.correct-answer {
  background: var(--leaf-green);
  box-shadow: 0 5px 0 #2c7d4f;
}
.quiz-option.wrong-answer {
  background: var(--awning-red);
  box-shadow: 0 5px 0 #b8402f;
}
.quiz-option:disabled {
  cursor: default;
}

/* ---------- Drag-the-exact-amount quiz ---------- */
.drag-target-label {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
}
.drag-target-label strong {
  color: var(--awning-red);
  font-size: 1.3rem;
}

.drag-pool {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 16px;
  min-height: 60px;
}
.drag-pool .money-card {
  width: 90px;
}

.drag-dropzone {
  min-height: 90px;
  border: 3px dashed var(--wood);
  border-radius: var(--radius-md);
  background: var(--cream);
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  margin-bottom: 12px;
  transition:
    background 0.15s ease,
    border-color 0.15s ease;
}
.drag-dropzone.drag-hover {
  background: #eefbf1;
  border-color: var(--leaf-green);
}
.drag-dropzone-hint {
  color: #a89b7e;
  font-style: italic;
  font-weight: 600;
  align-self: center;
}

.drag-current-total {
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 14px;
}
.drag-current-total strong {
  color: var(--leaf-green);
}

/* Small reusable money chip used inside quiz visuals / change breakdown */
.mini-money {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: transparent;
  border: none;
  border-radius: 12px;
  padding: 0;
  font-weight: 800;
  color: var(--ink);
  font-size: 1rem;
  min-width: 0;
  text-align: center;
  box-shadow: none;
}
.mini-money.bill {
  background: transparent;
}
.mini-money.coin {
  background: transparent;
  color: var(--ink);
  border-radius: 50%;
}
.mini-money .money-image {
  max-width: 90px;
  height: 58px;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.08);
}
.mini-money .money-value {
  font-size: 0.72rem;
}
.mini-money .money-coin-circle {
  width: 42px;
  height: 42px;
  font-size: 0.95rem;
}