/*
 * Mathe-Schatzreise - styles.css
 * A premium, child-friendly cartoon look built only with CSS, SVG and HTML.
 * No external fonts, images, trackers or paid assets.
 */

/* ------------------------------------------------------------------ */
/* Design tokens                                                       */
/* ------------------------------------------------------------------ */
:root {
  --c-ink: #0e1b3a;
  --c-sky-1: #2a6cf0;
  --c-sky-2: #6ec3ff;
  --c-card: #ffffff;
  --c-card-soft: #f4f7ff;
  --c-text: #1d2748;
  --c-muted: #5b6588;
  --c-primary: #ff8a3d;
  --c-primary-dark: #f5680f;
  --c-secondary: #6c5ce7;
  --c-accent: #18c29c;
  --c-gold: #ffc83d;
  --c-danger: #e64b5a;
  --c-correct: #18b56a;
  --c-wrong: #ef6a5a;
  --c-shadow: rgba(14, 27, 58, 0.18);

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

  --tap: 64px; /* minimum touch target */
  --font:
    "Trebuchet MS", "Segoe UI", Verdana, system-ui, -apple-system, sans-serif;

  --space: clamp(12px, 2.2vw, 22px);
}

/* ------------------------------------------------------------------ */
/* Reset & base                                                        */
/* ------------------------------------------------------------------ */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: var(--font);
  color: var(--c-text);
  background: linear-gradient(180deg, var(--c-sky-1) 0%, var(--c-sky-2) 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  overflow-x: hidden;
  /* Respect iOS safe areas for notch / home indicator */
  padding: env(safe-area-inset-top) env(safe-area-inset-right)
    env(safe-area-inset-bottom) env(safe-area-inset-left);
  touch-action: manipulation;
}

h1,
h2,
h3 {
  line-height: 1.1;
  margin: 0 0 0.4em;
  color: var(--c-ink);
}

/* Visible focus styles for keyboard users */
:focus-visible {
  outline: 4px solid var(--c-secondary);
  outline-offset: 3px;
  border-radius: 8px;
}

/* ------------------------------------------------------------------ */
/* Decorative background scene                                         */
/* ------------------------------------------------------------------ */
.bg-scene {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.bg-sun {
  position: absolute;
  top: 6%;
  right: 10%;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, #fff6c8 0%, #ffd84d 60%, #ffc83d 100%);
  box-shadow: 0 0 80px 30px rgba(255, 216, 77, 0.55);
}

.bg-cloud {
  position: absolute;
  width: 160px;
  height: 50px;
  background: rgba(255, 255, 255, 0.85);
  border-radius: 50px;
  filter: blur(0.3px);
  animation: drift 40s linear infinite;
}
.bg-cloud::before,
.bg-cloud::after {
  content: "";
  position: absolute;
  background: inherit;
  border-radius: 50%;
}
.bg-cloud::before {
  width: 70px;
  height: 70px;
  top: -30px;
  left: 24px;
}
.bg-cloud::after {
  width: 90px;
  height: 90px;
  top: -42px;
  right: 22px;
}
.bg-cloud--1 {
  top: 14%;
  left: -180px;
  animation-duration: 55s;
}
.bg-cloud--2 {
  top: 30%;
  left: -220px;
  transform: scale(0.7);
  animation-duration: 70s;
  animation-delay: -20s;
}
.bg-cloud--3 {
  top: 8%;
  left: -260px;
  transform: scale(1.2);
  animation-duration: 90s;
  animation-delay: -45s;
}

.bg-hill {
  position: absolute;
  left: -5%;
  width: 110%;
  border-radius: 50% 50% 0 0;
}
.bg-hill--back {
  bottom: 0;
  height: 26vh;
  background: #5bb98c;
}
.bg-hill--front {
  bottom: 0;
  height: 16vh;
  background: #3f9e71;
}

@keyframes drift {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(120vw);
  }
}

/* ------------------------------------------------------------------ */
/* Layout & screens                                                    */
/* ------------------------------------------------------------------ */
.app {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space);
}

.screen {
  display: none;
  width: 100%;
  max-width: 720px;
  animation: pop-in 0.35s ease both;
}
.screen.is-active {
  display: block;
}
.screen--game.is-active {
  display: flex;
  flex-direction: column;
  gap: var(--space);
}

@keyframes pop-in {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.card {
  background: var(--c-card);
  border-radius: var(--radius-lg);
  padding: clamp(20px, 4vw, 38px);
  box-shadow:
    0 18px 40px var(--c-shadow),
    inset 0 -6px 0 rgba(14, 27, 58, 0.05);
  width: 100%;
}
.card--centered {
  text-align: center;
}

.muted {
  color: var(--c-muted);
}

.title-xl {
  font-size: clamp(2rem, 7vw, 3.2rem);
  letter-spacing: -0.5px;
  background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tagline {
  font-size: clamp(1rem, 3.4vw, 1.3rem);
  color: var(--c-muted);
  margin-top: -0.2em;
}

.section-label {
  margin-top: 1.2em;
  font-size: 1.05rem;
  color: var(--c-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ------------------------------------------------------------------ */
/* Brand / hero                                                        */
/* ------------------------------------------------------------------ */
.brand-badge,
.hero-logo {
  font-size: clamp(3rem, 12vw, 5rem);
  margin-bottom: 0.2em;
  filter: drop-shadow(0 8px 10px rgba(14, 27, 58, 0.25));
}
.hero-logo {
  animation: bob 3s ease-in-out infinite;
}
@keyframes bob {
  0%,
  100% {
    transform: translateY(0) rotate(-2deg);
  }
  50% {
    transform: translateY(-10px) rotate(2deg);
  }
}

/* ------------------------------------------------------------------ */
/* Buttons                                                             */
/* ------------------------------------------------------------------ */
.btn {
  font-family: inherit;
  font-weight: 700;
  font-size: clamp(1.05rem, 3vw, 1.25rem);
  border: none;
  border-radius: var(--radius-md);
  padding: 0 22px;
  min-height: var(--tap);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  cursor: pointer;
  color: #fff;
  background: var(--c-secondary);
  box-shadow: 0 6px 0 rgba(0, 0, 0, 0.18);
  transition:
    transform 0.08s ease,
    box-shadow 0.08s ease,
    filter 0.15s ease;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}
.btn:active {
  transform: translateY(4px);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.18);
}
.btn--xl {
  min-height: 76px;
  font-size: clamp(1.2rem, 4vw, 1.5rem);
  width: 100%;
}
.btn--primary {
  background: linear-gradient(180deg, var(--c-primary), var(--c-primary-dark));
}
.btn--secondary {
  background: linear-gradient(180deg, #8a7bf0, var(--c-secondary));
}
.btn--hint {
  background: linear-gradient(180deg, #ffd45e, var(--c-gold));
  color: var(--c-ink);
}
.btn--danger {
  background: linear-gradient(180deg, #f47481, var(--c-danger));
  width: 100%;
  margin-top: 1.2em;
}
.btn--ghost {
  background: transparent;
  color: var(--c-secondary);
  box-shadow: none;
  font-size: 1rem;
  min-height: 48px;
  padding: 0 8px;
}
.btn--ghost:active {
  transform: none;
}
.btn--back {
  margin-bottom: 0.6em;
}
.btn--icon {
  min-width: var(--tap);
  padding: 0;
  font-size: 1.5rem;
  background: rgba(255, 255, 255, 0.18);
  box-shadow: none;
}
.btn-emoji {
  font-size: 1.3em;
}

.menu-buttons {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 1.4em;
}

/* ------------------------------------------------------------------ */
/* Stat chips                                                          */
/* ------------------------------------------------------------------ */
.stat-strip {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin: 1em 0;
  flex-wrap: wrap;
}
.stat-chip {
  background: var(--c-card-soft);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-text);
  box-shadow: inset 0 0 0 2px rgba(14, 27, 58, 0.06);
  white-space: nowrap;
}

/* ------------------------------------------------------------------ */
/* Language grid                                                       */
/* ------------------------------------------------------------------ */
.language-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-top: 1.4em;
}
.language-grid--compact {
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  margin-top: 0.6em;
}
.lang-btn {
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: 700;
  min-height: var(--tap);
  border: 3px solid transparent;
  border-radius: var(--radius-md);
  background: var(--c-card-soft);
  color: var(--c-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition:
    transform 0.08s ease,
    border-color 0.15s ease;
  -webkit-tap-highlight-color: transparent;
}
.lang-btn:active {
  transform: scale(0.97);
}
.lang-btn.is-selected {
  border-color: var(--c-primary);
  background: #fff4ea;
}
.lang-btn .flag {
  font-size: 1.4em;
}

/* ------------------------------------------------------------------ */
/* Mode cards                                                          */
/* ------------------------------------------------------------------ */
.mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin: 1em 0;
}
.mode-card {
  font-family: inherit;
  text-align: center;
  border: 3px solid transparent;
  border-radius: var(--radius-md);
  background: var(--c-card-soft);
  padding: 18px 12px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  transition:
    transform 0.08s ease,
    border-color 0.15s ease;
  -webkit-tap-highlight-color: transparent;
}
.mode-card:active {
  transform: scale(0.98);
}
.mode-card.is-selected {
  border-color: var(--c-secondary);
  background: #f1eeff;
}
.mode-emoji {
  font-size: 2.4rem;
}
.mode-name {
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--c-ink);
}
.mode-desc {
  font-size: 0.92rem;
  color: var(--c-muted);
}

/* ------------------------------------------------------------------ */
/* Chips (difficulty)                                                  */
/* ------------------------------------------------------------------ */
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0.6em 0 0.4em;
}
.chip {
  font-family: inherit;
  font-weight: 700;
  font-size: 1rem;
  border: 3px solid transparent;
  border-radius: 999px;
  background: var(--c-card-soft);
  color: var(--c-text);
  min-height: 52px;
  padding: 0 20px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.chip.is-selected {
  border-color: var(--c-accent);
  background: #e6f9f3;
}

/* ------------------------------------------------------------------ */
/* Switch rows                                                         */
/* ------------------------------------------------------------------ */
.switch-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 0;
  font-weight: 700;
  font-size: 1.1rem;
  border-bottom: 2px solid rgba(14, 27, 58, 0.06);
  cursor: pointer;
}
.switch {
  position: relative;
  display: inline-block;
  flex: none;
}
.switch input {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  cursor: pointer;
}
.switch-track {
  display: block;
  width: 64px;
  height: 36px;
  border-radius: 999px;
  background: #c7cee0;
  position: relative;
  transition: background 0.15s ease;
}
.switch-track::after {
  content: "";
  position: absolute;
  top: 4px;
  left: 4px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
  transition: transform 0.15s ease;
}
.switch input:checked + .switch-track {
  background: var(--c-accent);
}
.switch input:checked + .switch-track::after {
  transform: translateX(28px);
}
.switch input:focus-visible + .switch-track {
  outline: 4px solid var(--c-secondary);
  outline-offset: 3px;
}

/* ------------------------------------------------------------------ */
/* Game bar + map                                                      */
/* ------------------------------------------------------------------ */
.game-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-md);
  padding: 8px 12px;
  backdrop-filter: blur(4px);
}
.game-stats {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.map {
  background: var(--c-card);
  border-radius: var(--radius-md);
  padding: 10px 8px 6px;
  box-shadow: 0 10px 24px var(--c-shadow);
}
.map svg {
  width: 100%;
  height: clamp(90px, 18vw, 150px);
  display: block;
}
.map-station {
  fill: #d9def0;
  stroke: #fff;
  stroke-width: 3;
}
.map-station.is-done {
  fill: var(--c-correct);
}
.map-station.is-current {
  fill: var(--c-gold);
}
#map-walker {
  transition:
    x 0.5s ease,
    y 0.5s ease;
}
.map-progress {
  text-align: center;
  margin: 4px 0 2px;
  font-weight: 700;
  color: var(--c-muted);
}

/* ------------------------------------------------------------------ */
/* Task card                                                           */
/* ------------------------------------------------------------------ */
.task-card {
  background: var(--c-card);
  border-radius: var(--radius-lg);
  padding: clamp(16px, 3vw, 28px);
  box-shadow: 0 14px 34px var(--c-shadow);
  text-align: center;
}
.task-question {
  font-size: clamp(2.4rem, 9vw, 3.6rem);
  font-weight: 800;
  color: var(--c-ink);
  margin: 0.1em 0;
  letter-spacing: 1px;
}
.answer-display {
  display: block;
  font-size: clamp(2rem, 7vw, 2.8rem);
  font-weight: 800;
  min-height: 1.4em;
  color: var(--c-secondary);
  background: var(--c-card-soft);
  border-radius: var(--radius-md);
  padding: 6px 16px;
  margin: 0.2em auto 0.4em;
  max-width: 320px;
  letter-spacing: 2px;
}
.answer-display.is-correct {
  color: #fff;
  background: var(--c-correct);
}
.answer-display.is-wrong {
  color: #fff;
  background: var(--c-wrong);
  animation: shake 0.4s ease;
}
@keyframes shake {
  0%,
  100% {
    transform: translateX(0);
  }
  20%,
  60% {
    transform: translateX(-8px);
  }
  40%,
  80% {
    transform: translateX(8px);
  }
}

.feedback {
  min-height: 1.4em;
  font-weight: 700;
  font-size: 1.15rem;
  margin-bottom: 0.3em;
}
.feedback.is-correct {
  color: var(--c-correct);
}
.feedback.is-wrong {
  color: var(--c-wrong);
}
.hint {
  background: #fff8e3;
  border: 2px dashed var(--c-gold);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 1.05rem;
  color: #7a5a00;
  margin-bottom: 0.6em;
}

/* Number pad */
.numpad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  max-width: 360px;
  margin: 0.4em auto 0;
}
.key {
  font-family: inherit;
  font-weight: 800;
  font-size: clamp(1.4rem, 5vw, 2rem);
  min-height: var(--tap);
  border: none;
  border-radius: var(--radius-md);
  background: var(--c-card-soft);
  color: var(--c-ink);
  cursor: pointer;
  box-shadow: 0 4px 0 rgba(14, 27, 58, 0.12);
  -webkit-tap-highlight-color: transparent;
  transition:
    transform 0.06s ease,
    box-shadow 0.06s ease;
}
.key:active {
  transform: translateY(3px);
  box-shadow: 0 1px 0 rgba(14, 27, 58, 0.12);
}
.key--action {
  background: #ffe3cf;
  color: var(--c-primary-dark);
}

.task-actions {
  display: flex;
  gap: 12px;
  margin-top: 1em;
}
.task-actions .btn {
  flex: 1;
}
.btn--check {
  flex: 2 !important;
}

/* ------------------------------------------------------------------ */
/* Summary + treasure chest                                            */
/* ------------------------------------------------------------------ */
.chest {
  font-size: 5rem;
  margin: 0 auto 0.2em;
  width: 140px;
  height: 140px;
  display: grid;
  place-items: center;
  position: relative;
  cursor: pointer;
  border-radius: 50%;
  background: radial-gradient(circle, #fff3c4 0%, rgba(255, 243, 196, 0) 70%);
}
.chest.is-shaking {
  animation: chest-shake 0.5s ease infinite;
}
@keyframes chest-shake {
  0%,
  100% {
    transform: rotate(-4deg);
  }
  50% {
    transform: rotate(4deg);
  }
}
.chest.is-open {
  animation: chest-pop 0.5s ease;
}
@keyframes chest-pop {
  0% {
    transform: scale(0.6);
  }
  60% {
    transform: scale(1.25);
  }
  100% {
    transform: scale(1);
  }
}
.chest-shine {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(
    from 0deg,
    rgba(255, 200, 61, 0),
    rgba(255, 200, 61, 0.5),
    rgba(255, 200, 61, 0)
  );
  animation: spin 6s linear infinite;
  opacity: 0.7;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.treasure-line {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--c-primary-dark);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 1.2em 0;
}
.summary-tile {
  background: var(--c-card-soft);
  border-radius: var(--radius-md);
  padding: 14px 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.summary-num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--c-secondary);
}
.summary-lbl {
  font-size: 0.85rem;
  color: var(--c-muted);
}

.badge-shelf {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  min-height: 10px;
  margin-bottom: 0.4em;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: #fff7df;
  border: 2px solid var(--c-gold);
  border-radius: 999px;
  padding: 6px 14px;
  font-weight: 700;
  font-size: 0.95rem;
  animation: pop-in 0.4s ease both;
}
.badge--new {
  box-shadow: 0 0 0 4px rgba(255, 200, 61, 0.35);
}

/* ------------------------------------------------------------------ */
/* Overlay (pause)                                                     */
/* ------------------------------------------------------------------ */
.overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(14, 27, 58, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space);
  backdrop-filter: blur(3px);
}
.overlay[hidden] {
  display: none;
}
.overlay-card {
  max-width: 420px;
}

/* ------------------------------------------------------------------ */
/* How-to list                                                         */
/* ------------------------------------------------------------------ */
.howto-body {
  font-size: 1.1rem;
  line-height: 1.5;
}
.howto-list {
  list-style: none;
  padding: 0;
  margin: 1em 0 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.howto-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--c-card-soft);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 1.05rem;
  font-weight: 600;
}
.howto-list li span[aria-hidden] {
  font-size: 1.6rem;
}

/* ------------------------------------------------------------------ */
/* Confetti FX                                                         */
/* ------------------------------------------------------------------ */
.fx-layer {
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  overflow: hidden;
}
.confetti {
  position: absolute;
  top: -20px;
  width: 12px;
  height: 12px;
  border-radius: 2px;
  will-change: transform, opacity;
  animation: fall linear forwards;
}
@keyframes fall {
  to {
    transform: translateY(110vh) rotate(720deg);
    opacity: 0;
  }
}

/* ------------------------------------------------------------------ */
/* Landscape tuning for iPad                                           */
/* ------------------------------------------------------------------ */
@media (orientation: landscape) and (min-width: 720px) {
  .screen {
    max-width: 860px;
  }
  .numpad {
    max-width: 420px;
  }
  .screen--game.is-active {
    max-width: 920px;
  }
}

/* RTL support (e.g. Arabic) */
[dir="rtl"] .btn--back span[aria-hidden] {
  transform: scaleX(-1);
}

/* Respect reduced-motion preferences */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* ================================================================== */
/* Enhanced gameplay: Blitz timer, choices, mascot, combo, review      */
/* ================================================================== */

/* --- Blitz badge + adaptive timer ring --- */
.task-top {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 8px;
  margin-bottom: 4px;
}
.blitz-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.85rem;
  color: #fff;
  background: linear-gradient(135deg, #ff8a3d, #f5680f);
  box-shadow: 0 4px 12px rgba(245, 104, 15, 0.35);
  animation: blitz-pulse 1s ease-in-out infinite;
}
@keyframes blitz-pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.08);
  }
}
.timer-ring {
  width: 58px;
  height: 58px;
  flex: none;
}
.timer-ring-bg {
  fill: none;
  stroke: rgba(108, 92, 231, 0.18);
  stroke-width: 6;
}
.timer-ring-arc {
  fill: none;
  stroke: #18c29c;
  stroke-width: 6;
  stroke-linecap: round;
  stroke-dasharray: 163.36;
  stroke-dashoffset: 0;
  transition:
    stroke-dashoffset 0.12s linear,
    stroke 0.3s ease;
}
.timer-ring-num {
  font-size: 20px;
  font-weight: 800;
  fill: #0e1b3a;
}
.timer-ring.is-low .timer-ring-arc {
  stroke: #e64b5a;
}
.timer-ring.is-low .timer-ring-num {
  fill: #e64b5a;
}
.timer-ring.is-low {
  animation: ring-shake 0.5s ease-in-out infinite;
}
@keyframes ring-shake {
  0%,
  100% {
    transform: rotate(0deg);
  }
  25% {
    transform: rotate(-6deg);
  }
  75% {
    transform: rotate(6deg);
  }
}

/* --- Multiple-choice answer buttons --- */
.choices {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin: 8px 0 4px;
}
@media (min-width: 520px) {
  .choices {
    grid-template-columns: repeat(4, 1fr);
  }
}
.choice {
  min-height: var(--tap, 64px);
  padding: 14px 8px;
  border: 3px solid rgba(108, 92, 231, 0.25);
  border-radius: 18px;
  background: #fff;
  color: #0e1b3a;
  font-size: 1.6rem;
  font-weight: 800;
  cursor: pointer;
  transition:
    transform 0.08s ease,
    background 0.15s ease,
    border-color 0.15s ease;
  box-shadow: 0 4px 0 rgba(108, 92, 231, 0.18);
}
.choice:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 rgba(108, 92, 231, 0.18);
}
.choice:hover {
  border-color: #6c5ce7;
}
.choice.is-correct {
  background: #18b56a;
  border-color: #129a59;
  color: #fff;
  animation: pop 0.3s ease;
}
.choice.is-wrong {
  background: #ef6a5a;
  border-color: #d8503f;
  color: #fff;
  animation: nudge 0.3s ease;
}
.choice:disabled {
  cursor: default;
  opacity: 0.65;
}
@keyframes nudge {
  0%,
  100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-5px);
  }
  75% {
    transform: translateX(5px);
  }
}
@keyframes pop {
  0% {
    transform: scale(0.9);
  }
  60% {
    transform: scale(1.12);
  }
  100% {
    transform: scale(1);
  }
}

/* --- Mascot + speech bubble --- */
.mascot-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-content: center;
  margin: 4px 0 6px;
  min-height: 44px;
}
.mascot {
  font-size: 2.2rem;
  line-height: 1;
  display: inline-block;
}
.mascot.is-pop {
  animation: mascot-pop 0.5s ease;
}
@keyframes mascot-pop {
  0% {
    transform: scale(1) rotate(0deg);
  }
  40% {
    transform: scale(1.25) rotate(-8deg);
  }
  100% {
    transform: scale(1) rotate(0deg);
  }
}
.mascot-bubble {
  background: #fff;
  color: #0e1b3a;
  font-weight: 700;
  padding: 8px 14px;
  border-radius: 16px;
  box-shadow: 0 6px 16px rgba(14, 27, 58, 0.12);
  position: relative;
  max-width: 70%;
}
.mascot-bubble:empty {
  display: none;
}
.mascot-bubble::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 50%;
  transform: translateY(-50%);
  border: 8px solid transparent;
  border-right-color: #fff;
}

/* --- Combo multiplier tag --- */
.combo-tag {
  position: absolute;
  top: 10px;
  right: 12px;
  padding: 4px 12px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 0.9rem;
  color: #0e1b3a;
  background: linear-gradient(135deg, #ffd84d, #ffc83d);
  box-shadow: 0 4px 12px rgba(255, 200, 61, 0.45);
}
.combo-tag.is-pop {
  animation: mascot-pop 0.45s ease;
}

/* --- Floating coin reward --- */
.float-coin {
  position: fixed;
  left: 50%;
  bottom: 32%;
  transform: translateX(-50%);
  font-size: 1.4rem;
  font-weight: 800;
  color: #f5680f;
  text-shadow: 0 2px 6px rgba(255, 255, 255, 0.8);
  pointer-events: none;
  animation: float-up 1.2s ease-out forwards;
  z-index: 60;
}
@keyframes float-up {
  0% {
    opacity: 0;
    transform: translate(-50%, 10px) scale(0.8);
  }
  20% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -90px) scale(1.1);
  }
}

/* --- Toast (time / daily bonus) --- */
.toast {
  position: fixed;
  left: 50%;
  top: 14%;
  transform: translateX(-50%);
  background: rgba(14, 27, 58, 0.92);
  color: #fff;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: 14px;
  box-shadow: 0 8px 22px rgba(14, 27, 58, 0.3);
  pointer-events: none;
  z-index: 60;
  transition:
    opacity 0.5s ease,
    transform 0.5s ease;
}
.toast.is-out {
  opacity: 0;
  transform: translateX(-50%) translateY(-12px);
}

/* --- Prettier adventure map --- */
.map-trail {
  transition: stroke-dashoffset 0.6s ease;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.15));
}
.map-station {
  fill: rgba(255, 255, 255, 0.55);
  stroke: rgba(255, 255, 255, 0.9);
  stroke-width: 2;
  transition:
    fill 0.3s ease,
    transform 0.3s ease;
}
.map-station.is-done {
  fill: #18c29c;
}
.map-station.is-star {
  fill: #ffd84d;
}
.map-station.is-current {
  fill: #ff8a3d;
  animation: station-pulse 1.1s ease-in-out infinite;
}
@keyframes station-pulse {
  0%,
  100% {
    r: 10;
  }
  50% {
    r: 13;
  }
}
#map-walker {
  animation: walker-bob 1.4s ease-in-out infinite;
  transition:
    x 0.5s ease,
    y 0.5s ease;
}
@keyframes walker-bob {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-3px);
  }
}

/* --- End-of-run mistake review --- */
.review-box {
  margin: 8px 0 14px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(255, 200, 61, 0.16);
  border: 2px dashed rgba(245, 104, 15, 0.4);
  text-align: left;
}
.review-title {
  margin: 0 0 8px;
  font-size: 1rem;
  color: #0e1b3a;
}
.review-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 6px 14px;
}
.review-list li {
  font-weight: 700;
  color: #0e1b3a;
  background: #fff;
  border-radius: 10px;
  padding: 6px 10px;
}

/* Respect reduced-motion preferences */
@media (prefers-reduced-motion: reduce) {
  .blitz-tag,
  .timer-ring.is-low,
  .map-station.is-current,
  #map-walker,
  .mascot.is-pop,
  .combo-tag.is-pop,
  .float-coin {
    animation: none;
  }
}

/* ============================================================
   v1.2.0 — power-up tray, daily treasure reveal, coin shop
   ============================================================ */

/* Power-up tray shown during a run */
.powerups {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin: 6px 0 2px;
}
.powerup {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 12px;
  border: none;
  border-radius: 16px;
  background: var(--card, #fff);
  box-shadow: 0 4px 0 rgba(0, 0, 0, 0.12);
  font-size: 1.3rem;
  cursor: pointer;
  transition:
    transform 0.08s ease,
    box-shadow 0.08s ease,
    opacity 0.15s ease;
}
.powerup:active {
  transform: translateY(2px);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.12);
}
.powerup-icon {
  font-size: 1.4rem;
  line-height: 1;
}
.powerup-count {
  font-size: 0.95rem;
  font-weight: 800;
  color: #444;
  min-width: 1ch;
}
.powerup.is-empty {
  opacity: 0.4;
  filter: grayscale(0.6);
}
.powerup--star {
  background: linear-gradient(180deg, #fff6d8, #ffe7a8);
}
.powerup--star .powerup-count {
  color: #a86b00;
}

/* Continue + faded choice states */
.choice.is-faded {
  opacity: 0.28;
  pointer-events: none;
}
.choice--continue {
  grid-column: 1 / -1;
  background: linear-gradient(180deg, #ffd23f, #ff9f1c) !important;
  color: #5a3a00 !important;
  font-weight: 800;
}

/* The worked-solution panel (reuses #hint) after a wrong answer */
.hint.solution {
  display: block;
  margin: 10px auto 4px;
  padding: 12px 16px;
  border-radius: 16px;
  background: #fff3d6;
  border: 2px dashed #ffb53d;
  color: #6b4b00;
  font-size: 1.25rem;
  font-weight: 800;
  text-align: center;
  cursor: pointer;
  animation: pop 0.25s ease;
}

/* Daily treasure reveal inside the summary chest */
.treasure-reveal {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  margin: 4px auto 10px;
}
.treasure-reveal.is-pop .treasure-img {
  animation: treasurePop 0.5s cubic-bezier(0.2, 1.4, 0.5, 1) both;
}
.treasure-img {
  width: 120px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  filter: drop-shadow(0 6px 10px rgba(0, 0, 0, 0.18));
}
.treasure-img svg {
  width: 100%;
  height: 100%;
}
.treasure-name {
  font-size: 1.15rem;
  font-weight: 800;
  color: #5a3a8a;
}
.treasure-count {
  font-size: 0.9rem;
  color: #888;
}
@keyframes treasurePop {
  0% {
    transform: scale(0.2) rotate(-18deg);
    opacity: 0;
  }
  70% {
    transform: scale(1.12) rotate(6deg);
    opacity: 1;
  }
  100% {
    transform: scale(1) rotate(0deg);
  }
}

/* Coin shop overlay */
.shop-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 60;
}
.shop-card {
  position: relative;
  width: min(440px, 94vw);
  max-height: 88vh;
  overflow-y: auto;
  text-align: center;
  padding: 22px 18px 24px;
}
.shop-close {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 1.2rem;
  padding: 4px 10px;
}
.shop-title {
  margin: 0 0 2px;
}
.shop-coins {
  margin: 0 0 14px;
  font-weight: 800;
  color: #a86b00;
}
.shop-section-label {
  text-align: left;
  margin: 14px 4px 8px;
  color: #6b5b8a;
}
.shop-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.shop-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 16px;
  background: var(--card, #fff);
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.08);
}
.shop-item-icon {
  font-size: 1.7rem;
  line-height: 1;
}
.shop-item-text {
  display: flex;
  flex-direction: column;
  text-align: left;
  flex: 1;
}
.shop-item-name {
  font-weight: 800;
}
.shop-item-desc {
  font-size: 0.85rem;
  color: #777;
}
.shop-buy {
  white-space: nowrap;
  padding: 8px 14px;
}
.shop-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(92px, 1fr));
  gap: 10px;
}
.buddy-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 12px 6px;
  border-radius: 16px;
  background: var(--card, #fff);
  box-shadow: 0 3px 0 rgba(0, 0, 0, 0.08);
  border: 3px solid transparent;
  cursor: pointer;
}
.buddy-emoji {
  font-size: 2rem;
  line-height: 1;
}
.buddy-name {
  font-size: 0.85rem;
  font-weight: 800;
}
.buddy-action {
  font-size: 0.75rem;
  color: #777;
}
.buddy-card.is-equipped {
  border-color: #18b56a;
}
.buddy-card.is-locked {
  opacity: 0.85;
}

/* ============================================================
   v1.2.0 — iPhone / small-screen comfort
   Tap-only layout: keep the map, question, answer buttons and
   power-ups all in view without awkward scrolling, and keep the
   power-up row clear of the home indicator.
   ============================================================ */
.screen--game.is-active {
  /* Let the game scroll gracefully if a very short device ever overflows. */
  overflow-y: auto;
  padding-bottom: env(safe-area-inset-bottom);
}

@media (max-width: 540px) {
  .app {
    padding: 10px;
    align-items: stretch;
  }
  .screen--game.is-active {
    gap: 12px;
  }
  .card,
  .task-card {
    padding: 16px 14px;
  }
  .map {
    padding: 8px 6px 4px;
  }
  .map svg {
    height: clamp(78px, 16vw, 120px);
  }
  .task-question {
    font-size: clamp(2rem, 11vw, 2.8rem);
    margin: 0.05em 0;
  }
  .choices {
    gap: 10px;
    margin: 6px 0 2px;
  }
  .choice {
    min-height: 62px;
    font-size: clamp(1.5rem, 8vw, 1.9rem);
    padding: 12px 6px;
  }
  .powerups {
    gap: 8px;
  }
  .powerup {
    padding: 7px 11px;
    font-size: 1.2rem;
  }
  .feedback {
    margin: 4px 0;
  }
  .shop-card {
    padding: 18px 14px 22px;
  }
  .treasure-img {
    width: 104px;
    height: 104px;
  }
}

/* Short portrait phones: trim vertical rhythm so answers stay above the fold. */
@media (max-height: 720px) {
  .map svg {
    height: clamp(70px, 14vh, 110px);
  }
  .task-card {
    padding-top: 12px;
    padding-bottom: 12px;
  }
}