/* --- Design tokens --- */
:root {
  /* Spacing (4px base) */
  --space-2: 0.5rem;
  /* 8px */
  --space-3: 0.75rem;
  /* 12px */
  --space-4: 1rem;
  /* 16px */
  --space-5: 1.25rem;
  /* 20px */
  --space-6: 1.5rem;
  /* 24px */
  --space-8: 2rem;
  /* 32px */
  --space-10: 2.5rem;
  /* 40px */
  --space-12: 3rem;
  /* 48px */
  --space-16: 4rem;
  /* 64px */
  --space-20: 5rem;
  /* 80px */
  --space-1: 0.25rem;
  /* 4px */

  /* Warm, intimate palette */
  --color-bg: #faf8f5;
  --color-bg-card: #fffefc;
  --color-surface: #f5f0eb;
  --color-text: #2c2520;
  --color-text-muted: #6b5f56;
  --color-primary: #E34040;
  --color-primary-hover: #c73636;
  --color-primary-soft: rgba(227, 64, 64, 0.12);
  --color-accent: #8b7355;
  --color-border: #e8e2db;
  --color-progress: #E34040;

  /* Typography */
  --font-heading: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Outfit', system-ui, sans-serif;
  --text-xs: 0.75rem;
  /* 12px */
  --text-sm: 0.875rem;
  /* 14px */
  --text-base: 1rem;
  /* 16px */
  --text-lg: 1.125rem;
  /* 18px */
  --text-xl: 1.25rem;
  /* 20px */
  --text-2xl: 1.5rem;
  /* 24px */
  --text-3xl: 2rem;
  /* 32px */
  --text-4xl: 2.5rem;
  /* 40px */
  --text-5xl: 3rem;
  /* 48px */
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;

  /* Layout */
  --max-width: 42rem;
  --radius: 0.75rem;
  --radius-lg: 1rem;
  --shadow: 0 4px 24px rgba(44, 37, 32, 0.06);
  --shadow-lg: 0 12px 48px rgba(44, 37, 32, 0.08);
  --transition: 0.25s ease;
  --transition-slow: 0.4s ease;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text);
  background: var(--color-bg);
}

/* --- App shell --- */
.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: var(--space-4);
}

@media (min-width: 640px) {
  .app {
    padding: var(--space-6) var(--space-8);
  }
}

/* --- Header & progress --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10;
  padding: var(--space-4) var(--space-4) var(--space-2);
  background: linear-gradient(to bottom, var(--color-bg) 70%, transparent);
  pointer-events: none;
}

.header .progress-bar {
  height: 4px;
  background: var(--color-border);
  border-radius: 2px;
  overflow: hidden;
}

.header .progress-fill {
  height: 100%;
  width: 0%;
  background: var(--color-progress);
  border-radius: 2px;
  transition: width var(--transition-slow);
}

.header-game {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
  pointer-events: auto;
}

.dice-btn {
  width: 2.25rem;
  height: 2.25rem;
  padding: 0;
  border: none;
  border-radius: var(--radius);
  background: var(--color-surface);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition), transform 0.15s ease;
}

.dice-btn:hover:not(:disabled) {
  background: var(--color-border);
  transform: scale(1.08);
}

.dice-btn:disabled {
  cursor: not-allowed;
  opacity: 0.8;
}

.dice-face {
  font-size: 1.25rem;
  line-height: 1;
  min-width: 1.25rem;
  text-align: center;
  display: block;
}

.dice-face.dice-rolling {
  animation: diceRoll 0.08s ease-in-out infinite;
}

@keyframes diceRoll {

  0%,
  100% {
    transform: rotate(-8deg) scale(1.1);
  }

  50% {
    transform: rotate(8deg) scale(0.95);
  }
}

.level-pill {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-primary);
  background: var(--color-primary-soft);
  padding: var(--space-1) var(--space-3);
  border-radius: 999px;
}

.xp-display {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-accent);
}

.header .progress-text {
  margin: var(--space-2) 0 0;
  font-size: var(--text-xs);
  font-weight: 500;
  color: var(--color-text-muted);
}

.header:not(.header-visible) .header-game,
.header:not(.header-visible) .progress-bar,
.header:not(.header-visible) .progress-text {
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.header.header-visible .header-game,
.header.header-visible .progress-bar,
.header.header-visible .progress-text {
  opacity: 1;
  visibility: visible;
}

/* --- Screens --- */
.screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding-top: var(--space-16);
  padding-bottom: var(--space-12);
  animation: fadeIn 0.4s ease;
}

.screen.hidden {
  display: none;
}

/* --- Board (Monopoly-style square) --- */
.screen-board {
  padding-top: var(--space-12);
}

.board-turn {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-primary);
  text-align: center;
  margin: 0 0 var(--space-4);
}

.board-wrap {
  position: relative;
  width: min(90vmin, 22rem);
  aspect-ratio: 1;
  margin: 0 auto var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 3px solid var(--color-border);
}

.board {
  display: grid;
  grid-template-columns: repeat(11, 1fr);
  grid-template-rows: repeat(11, 1fr);
  width: 100%;
  height: 100%;
  background: var(--color-bg-card);
  border-radius: calc(var(--radius-lg) - 2px);
  overflow: hidden;
}

.board-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--color-text-muted);
  min-width: 0;
  min-height: 0;
}

.board-cell-go {
  background: var(--color-primary-soft);
  color: var(--color-primary);
  font-size: var(--text-sm);
}

.token {
  position: absolute;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  font-weight: 700;
  color: #fff;
  box-shadow: var(--shadow);
  transition: left 0.4s ease, top 0.4s ease;
  pointer-events: none;
  z-index: 2;
}

.token-1 {
  background: var(--color-primary);
}

.token-2 {
  background: var(--color-accent);
}

.board-dice-hint {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-align: center;
  margin: 0;
}

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

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --- Intro screen --- */
.screen-intro {
  text-align: center;
  position: relative;
}

.intro-content {
  max-width: var(--max-width);
  position: relative;
  z-index: 1;
}

.intro-title {
  font-family: var(--font-heading);
  font-size: clamp(var(--text-3xl), 5vw, var(--text-5xl));
  font-weight: 600;
  line-height: var(--leading-tight);
  color: var(--color-text);
  margin: 0 0 var(--space-4);
  letter-spacing: -0.02em;
}

.intro-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
  margin: 0 0 var(--space-4);
  max-width: 36ch;
  margin-left: auto;
  margin-right: auto;
}

.intro-hey {
  font-size: var(--text-lg);
  font-weight: 500;
  color: var(--color-primary);
  margin: 0 0 var(--space-2);
}

.intro-note {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0 0 var(--space-4);
}

.intro-badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  margin: 0 0 var(--space-6);
}

.badge {
  width: 2.25rem;
  height: 2.25rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  border-radius: 50%;
  transition: transform 0.15s ease, opacity 0.2s ease;
}

.badge-earned {
  background: var(--color-primary-soft);
  opacity: 1;
}

.badge-locked {
  background: var(--color-surface);
  opacity: 0.5;
}

.badge-earned:hover {
  transform: scale(1.1);
}

.intro-decoration {
  position: absolute;
  bottom: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  max-width: 24rem;
  height: 12rem;
  background: radial-gradient(ellipse at center, var(--color-primary-soft) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

/* --- Question screen --- */
.screen-question {
  padding-top: var(--space-20);
}

.question-card {
  width: 100%;
  max-width: var(--max-width);
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-8);
  border: 1px solid var(--color-border);
  animation: cardIn 0.35s ease;
}

@keyframes cardIn {
  from {
    opacity: 0;
    transform: scale(0.98) translateY(12px);
  }

  to {
    opacity: 1;
    transform: scale(1) translateY(0);
  }
}

.set-label {
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin: 0 0 var(--space-2);
}

.question-number {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0 0 var(--space-4);
}

.question-text {
  font-family: var(--font-heading);
  font-size: clamp(var(--text-xl), 3vw, var(--text-2xl));
  font-weight: 400;
  line-height: var(--leading-snug);
  color: var(--color-text);
  margin: 0 0 var(--space-3);
  max-width: 65ch;
}

.question-xp {
  font-size: var(--text-sm);
  color: var(--color-accent);
  font-weight: 500;
  margin: 0 0 var(--space-6);
}

.question-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
}

.question-nav-right {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* --- End screen --- */
.screen-end {
  text-align: center;
}

.end-content {
  max-width: var(--max-width);
}

.end-badge {
  font-size: var(--text-2xl);
  margin: 0 0 var(--space-2);
}

.end-badge-hero {
  display: inline-block;
  animation: pop 0.5s ease;
}

@keyframes pop {
  0% {
    transform: scale(0.8);
    opacity: 0;
  }

  60% {
    transform: scale(1.08);
  }

  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.end-stats {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-accent);
  margin: 0 0 var(--space-4);
}

.end-title {
  font-family: var(--font-heading);
  font-size: clamp(var(--text-2xl), 4vw, var(--text-3xl));
  font-weight: 600;
  line-height: var(--leading-snug);
  margin: 0 0 var(--space-4);
  color: var(--color-text);
}

.end-instruction,
.end-cta {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
  margin: 0 0 var(--space-4);
}

.end-instruction strong {
  color: var(--color-primary);
  font-weight: 600;
}

.timer-display {
  margin: var(--space-6) 0;
}

.timer-display.hidden {
  display: none;
}

.timer-value {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

/* --- Buttons --- */
.btn {
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  line-height: 1.25;
  padding: var(--space-3) var(--space-6);
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color var(--transition), color var(--transition), transform 0.15s ease;
}

.btn:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-border);
}

.btn-icon {
  padding: var(--space-3);
  min-width: 2.75rem;
}

.btn-icon-svg {
  font-size: 1.25rem;
  line-height: 1;
}

.btn-large {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
  margin: var(--space-4) 0;
}

.btn-small {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  margin-top: var(--space-6);
}

.btn-ghost:hover:not(:disabled) {
  color: var(--color-text);
  background: var(--color-surface);
}

.end-content .timer-display+.btn-ghost,
.end-content .btn-large+.btn-ghost {
  margin-top: var(--space-4);
}

/* --- Toast --- */
.toast-container {
  position: fixed;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  pointer-events: none;
}

.toast {
  padding: var(--space-3) var(--space-5);
  background: var(--color-text);
  color: var(--color-bg);
  font-size: var(--text-sm);
  font-weight: 500;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.toast.toast-visible {
  opacity: 1;
  transform: translateY(0);
}