/* ========== RESET & BASE ========== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #f5f3ff;
  --bg-card: #ffffff;
  --text: #1e1b4b;
  --text-soft: #5b5678;
  --primary: #7c3aed;
  --primary-dark: #5b21b6;
  --primary-soft: #ddd6fe;
  --accent: #f59e0b;
  --success: #10b981;
  --success-bg: #d1fae5;
  --error: #ef4444;
  --error-bg: #fee2e2;
  --shadow: 0 10px 30px rgba(124, 58, 237, 0.12);
  --radius: 20px;
  --radius-sm: 14px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --grad-a: #c4b5fd;
  --grad-b: #fde68a;
  --grad-c: #a5b4fc;
  --progress-track: #e9e5ff;
  --progress-fill: linear-gradient(90deg, #a78bfa, #7c3aed);
  --btn-primary: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
  --btn-shadow: 0 8px 20px rgba(124, 58, 237, 0.35);
  --score-box-bg: linear-gradient(160deg, #f5f3ff, #ede9fe);
}

/* Wings of Fire — dragons, sky, amber, volcanic teal */
body[data-theme="wof"] {
  --bg: #fff7ed;
  --text: #431407;
  --text-soft: #7c2d12;
  --primary: #ea580c;
  --primary-dark: #9a3412;
  --primary-soft: #fed7aa;
  --accent: #0d9488;
  --shadow: 0 10px 30px rgba(234, 88, 12, 0.14);
  --grad-a: #fdba74;
  --grad-b: #5eead4;
  --grad-c: #fca5a5;
  --progress-track: #ffedd5;
  --progress-fill: linear-gradient(90deg, #fb923c, #ea580c);
  --btn-primary: linear-gradient(135deg, #f97316 0%, #ea580c 100%);
  --btn-shadow: 0 8px 20px rgba(234, 88, 12, 0.35);
  --score-box-bg: linear-gradient(160deg, #fff7ed, #ffedd5);
  --theme-color: #ea580c;
}

/* Warriors — forest, moonlight, bark */
body[data-theme="warriors"] {
  --bg: #ecfdf5;
  --text: #052e16;
  --text-soft: #14532d;
  --primary: #059669;
  --primary-dark: #064e3b;
  --primary-soft: #a7f3d0;
  --accent: #94a3b8;
  --shadow: 0 10px 30px rgba(5, 150, 105, 0.14);
  --grad-a: #6ee7b7;
  --grad-b: #cbd5e1;
  --grad-c: #86efac;
  --progress-track: #d1fae5;
  --progress-fill: linear-gradient(90deg, #34d399, #059669);
  --btn-primary: linear-gradient(135deg, #10b981 0%, #059669 100%);
  --btn-shadow: 0 8px 20px rgba(5, 150, 105, 0.35);
  --score-box-bg: linear-gradient(160deg, #ecfdf5, #d1fae5);
  --theme-color: #059669;
}

html { height: 100%; -webkit-tap-highlight-color: transparent; }

body {
  min-height: 100%;
  min-height: 100dvh;
  font-family: var(--font);
  background:
    radial-gradient(ellipse 80% 50% at 20% 0%, var(--grad-a) 0%, transparent 50%),
    radial-gradient(ellipse 60% 40% at 100% 100%, var(--grad-b) 0%, transparent 45%),
    radial-gradient(ellipse 50% 30% at 0% 100%, var(--grad-c) 0%, transparent 40%),
    var(--bg);
  color: var(--text);
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 16px;
  padding-bottom: calc(16px + var(--safe-bottom));
  transition: background 0.4s ease, color 0.3s ease;
}

/* ========== APP SHELL ========== */
.app {
  width: 100%;
  max-width: 480px;
  position: relative;
}

.screen {
  display: none;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.screen.active {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.screen.leaving {
  opacity: 0;
  transform: translateY(-8px);
}

.card {
  background: var(--bg-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 22px;
  border: 2px solid color-mix(in srgb, var(--primary) 10%, transparent);
  position: relative;
  overflow: hidden;
}

/* ========== START / HOME ========== */
.start-hero { text-align: center; padding-top: 8px; }

.start-emoji {
  font-size: 3.5rem;
  line-height: 1;
  margin-bottom: 12px;
  display: block;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.quiz-title {
  font-size: clamp(1.65rem, 6vw, 2.05rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--primary-dark);
  margin-bottom: 10px;
  line-height: 1.2;
}

.quiz-title .very {
  color: var(--primary);
  text-decoration: underline;
  text-decoration-thickness: 3px;
  text-underline-offset: 4px;
}

.quiz-desc {
  color: var(--text-soft);
  font-size: 1.05rem;
  margin-bottom: 22px;
  max-width: 34ch;
  margin-inline: auto;
}

.picker-label {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  text-align: left;
}

/* Series cards */
.series-picker {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 18px;
  text-align: left;
}

.series-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  text-align: left;
  padding: 16px;
  font-family: inherit;
  color: var(--text);
  background: #f8fafc;
  border: 2.5px solid #e2e8f0;
  border-radius: var(--radius-sm);
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  outline: none;
  transition:
    border-color 0.15s ease,
    background 0.15s ease,
    transform 0.12s ease,
    box-shadow 0.15s ease;
  -webkit-tap-highlight-color: transparent;
}

.series-card:active { transform: scale(0.98); }

.series-card[aria-pressed="true"] {
  border-color: var(--card-accent, var(--primary));
  background: var(--card-bg, #f5f3ff);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--card-accent, var(--primary)) 22%, transparent);
}

.series-wof {
  --card-accent: #ea580c;
  --card-bg: #fff7ed;
}

.series-warriors {
  --card-accent: #059669;
  --card-bg: #ecfdf5;
}

@media (hover: hover) and (pointer: fine) {
  .series-card:hover {
    border-color: var(--card-accent, var(--primary-soft));
    background: var(--card-bg, #f5f3ff);
  }
}

.series-card:focus-visible {
  border-color: var(--card-accent, var(--primary));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--card-accent, var(--primary)) 25%, transparent);
}

.series-emoji {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  background: var(--card-bg, var(--primary-soft));
  border-radius: 14px;
}

.series-body { flex: 1; min-width: 0; }

.series-title {
  display: block;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--card-accent, var(--primary-dark));
  margin-bottom: 4px;
  line-height: 1.25;
}

.series-desc {
  display: block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-soft);
  line-height: 1.35;
}

/* Length picker */
.length-picker {
  margin-bottom: 18px;
  text-align: left;
}

.length-picker[hidden] { display: none; }

.length-options {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
}

.length-btn {
  min-height: 52px;
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text);
  background: #f8fafc;
  border: 2.5px solid #e2e8f0;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease, transform 0.12s ease;
  -webkit-tap-highlight-color: transparent;
}

.length-btn:active { transform: scale(0.96); }

.length-btn.is-selected {
  border-color: var(--primary);
  background: var(--primary-soft);
  color: var(--primary-dark);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 20%, transparent);
}

@media (hover: hover) and (pointer: fine) {
  .length-btn:hover:not(.is-selected) {
    border-color: var(--primary-soft);
    background: color-mix(in srgb, var(--primary-soft) 40%, #fff);
  }
}

.length-btn:focus-visible {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 25%, transparent);
}

.start-hint {
  margin-top: 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-soft);
}

/* ========== BUTTONS ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  min-height: 56px;
  padding: 14px 22px;
  font-family: inherit;
  font-size: 1.1rem;
  font-weight: 700;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease, opacity 0.15s ease;
  -webkit-user-select: none;
  user-select: none;
}

.btn:active:not(:disabled) { transform: scale(0.97); }

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

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

.btn-secondary {
  background: #f1f5f9;
  color: var(--text);
  margin-top: 12px;
}

@media (hover: hover) and (pointer: fine) {
  .btn-primary:hover:not(:disabled) {
    transform: translateY(-1px);
    filter: brightness(1.05);
  }
  .btn-secondary:hover { background: #e2e8f0; }
}

/* ========== QUIZ HEADER / PROGRESS ========== */
.quiz-header { margin-bottom: 18px; }

.progress-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  gap: 12px;
}

.question-counter {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: 0.01em;
}

.score-live {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-soft);
  background: #f1f5f9;
  padding: 4px 10px;
  border-radius: 999px;
}

.progress-track {
  height: 10px;
  background: var(--progress-track);
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--progress-fill);
  border-radius: 999px;
  transition: width 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.quiz-series-tag {
  margin-top: 10px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary-dark);
  background: var(--primary-soft);
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 999px;
}

/* ========== QUESTION ========== */
.question-text {
  font-size: clamp(1.1rem, 4.2vw, 1.3rem);
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 22px;
  color: var(--text);
}

.answers {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.answer-btn {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  width: 100%;
  min-height: 60px;
  text-align: left;
  padding: 16px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.35;
  color: var(--text);
  background: #f8fafc;
  border: 2.5px solid #e2e8f0;
  border-radius: var(--radius-sm);
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  outline: none;
  transition:
    border-color 0.15s ease,
    background 0.15s ease,
    transform 0.12s ease,
    box-shadow 0.15s ease;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

@media (hover: hover) and (pointer: fine) {
  .answer-btn:hover:not(:disabled) {
    border-color: var(--primary-soft);
    background: color-mix(in srgb, var(--primary-soft) 35%, #fff);
    transform: translateY(-1px);
  }
}

.answer-btn:active:not(:disabled) {
  transform: scale(0.98);
  background: #f1f5f9;
}

.answer-btn:focus { outline: none; }

.answer-btn:focus-visible {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 25%, transparent);
}

.answer-btn:disabled { cursor: default; }

.answer-letter {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-weight: 800;
  font-size: 0.9rem;
}

.answer-text {
  flex: 1;
  padding-top: 4px;
}

.answer-btn.correct {
  border-color: var(--success);
  background: var(--success-bg);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.2);
  animation: pop 0.35s ease;
}

.answer-btn.correct .answer-letter {
  background: var(--success);
  color: #fff;
}

.answer-btn.wrong {
  border-color: var(--error);
  background: var(--error-bg);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.15);
  animation: shake 0.4s ease;
}

.answer-btn.wrong .answer-letter {
  background: var(--error);
  color: #fff;
}

.answer-btn.dimmed { opacity: 0.55; }

@keyframes pop {
  0% { transform: scale(1); }
  40% { transform: scale(1.03); }
  100% { transform: scale(1); }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-6px); }
  40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); }
  80% { transform: translateX(4px); }
}

/* ========== RESULTS ========== */
.results-hero { text-align: center; }

.results-emoji {
  font-size: 4rem;
  line-height: 1;
  margin-bottom: 8px;
  display: block;
  animation: pop 0.5s ease;
}

.results-message {
  font-size: clamp(1.45rem, 5vw, 1.85rem);
  font-weight: 800;
  color: var(--primary-dark);
  margin-bottom: 6px;
  line-height: 1.25;
}

.results-sub {
  color: var(--text-soft);
  font-size: 1rem;
  margin-bottom: 24px;
  max-width: 36ch;
  margin-inline: auto;
}

.results-hero.is-rylee .results-message {
  background: linear-gradient(90deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.results-hero.is-rylee .results-sub {
  font-weight: 700;
  color: var(--primary-dark);
}

.score-display {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 28px;
}

.score-box {
  background: var(--score-box-bg);
  border-radius: var(--radius-sm);
  padding: 18px 12px;
  border: 2px solid color-mix(in srgb, var(--primary) 12%, transparent);
}

.score-box .label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-soft);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}

.score-box .value {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary-dark);
}

/* Confetti for Rylee-level */
.confetti {
  pointer-events: none;
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.confetti span {
  position: absolute;
  top: -12px;
  width: 8px;
  height: 12px;
  border-radius: 2px;
  opacity: 0.9;
  animation: confetti-fall linear forwards;
}

@keyframes confetti-fall {
  0% { transform: translateY(0) rotate(0deg); opacity: 1; }
  100% { transform: translateY(420px) rotate(720deg); opacity: 0; }
}

/* Responsive */
@media (min-width: 480px) {
  .card { padding: 32px 28px; }
  .answer-btn { font-size: 1.05rem; padding: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  .screen, .progress-fill, .btn, .answer-btn, .start-emoji, .confetti span {
    transition: none !important;
    animation: none !important;
  }
}