/* ─── TOKENS ─────────────────────────────────────── */
:root {
  --gold:      #f5a623;
  --gold-2:    #ffd166;
  --red:       #e63946;
  --green:     #2dc653;
  --green-2:   #06d6a0;
  --blue:      #118ab2;
  --purple:    #9b5de5;
  --black:     #1a1a1a;
  --white:     #fffef7;
  --cream:     #fff9ed;
  --font-display: 'Righteous', cursive;
  --font-body:    'Nunito', sans-serif;
}

/* ─── RESET ──────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  background: #1a0a00;
  font-family: var(--font-body);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ─── BACKGROUND PATTERN ─────────────────────────── */
.bg-pattern {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-color: #1a0a00;
  background-image:
    repeating-linear-gradient(45deg, rgba(245,166,35,0.07) 0px, rgba(245,166,35,0.07) 2px, transparent 2px, transparent 20px),
    repeating-linear-gradient(-45deg, rgba(230,57,70,0.05) 0px, rgba(230,57,70,0.05) 2px, transparent 2px, transparent 20px),
    repeating-linear-gradient(0deg, rgba(45,198,83,0.04) 0px, rgba(45,198,83,0.04) 2px, transparent 2px, transparent 40px),
    repeating-linear-gradient(90deg, rgba(245,166,35,0.04) 0px, rgba(245,166,35,0.04) 2px, transparent 2px, transparent 40px);
}

.bg-overlay {
  position: fixed;
  inset: 0;
  z-index: 0;
  background: radial-gradient(ellipse at 20% 20%, rgba(230,57,70,0.15) 0%, transparent 50%),
              radial-gradient(ellipse at 80% 80%, rgba(245,166,35,0.12) 0%, transparent 50%),
              radial-gradient(ellipse at 50% 50%, rgba(45,198,83,0.08) 0%, transparent 70%);
}

/* ─── APP ────────────────────────────────────────── */
.app {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

/* ─── SCREENS ────────────────────────────────────── */
.screen {
  display: none;
  width: 100%;
  max-width: 680px;
  animation: screenIn 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.screen.active { display: block; }

@keyframes screenIn {
  from { opacity: 0; transform: translateY(24px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ─── START SCREEN ───────────────────────────────── */
.start-wrap {
  background: var(--cream);
  border-radius: 32px;
  padding: 52px 44px;
  text-align: center;
  border: 4px solid var(--black);
  box-shadow: 8px 8px 0 var(--black);
  position: relative;
  overflow: hidden;
}

.start-wrap::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 8px;
  background: repeating-linear-gradient(90deg, var(--red) 0px, var(--red) 20px, var(--gold) 20px, var(--gold) 40px, var(--green) 40px, var(--green) 60px, var(--blue) 60px, var(--blue) 80px);
}

.start-badge {
  display: inline-block;
  background: var(--gold);
  color: var(--black);
  font-weight: 800;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 6px 18px;
  border-radius: 50px;
  border: 2px solid var(--black);
  margin-bottom: 24px;
  margin-top: 12px;
}

.start-title {
  font-family: var(--font-display);
  font-size: clamp(56px, 12vw, 90px);
  line-height: 0.9;
  color: var(--black);
  margin-bottom: 12px;
}

.start-title span {
  color: var(--red);
  display: block;
}

.start-sub {
  font-size: 15px;
  font-weight: 700;
  color: var(--blue);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.start-desc {
  font-size: 14px;
  color: rgba(26,26,26,0.55);
  margin-bottom: 36px;
}

/* DIFFICULTY */
.difficulty-wrap {
  margin-bottom: 32px;
}

.diff-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(26,26,26,0.45);
  margin-bottom: 14px;
}

.diff-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.diff-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 16px 8px;
  background: var(--white);
  border: 2.5px solid rgba(26,26,26,0.15);
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.diff-btn:hover {
  border-color: var(--gold);
  transform: translateY(-2px);
}

.diff-btn.active {
  border-color: var(--black);
  background: var(--gold-2);
  box-shadow: 3px 3px 0 var(--black);
}

.diff-icon { font-size: 24px; }
.diff-name { font-size: 13px; font-weight: 800; color: var(--black); }
.diff-desc { font-size: 10px; color: rgba(26,26,26,0.5); }

/* START BUTTON */
.start-btn {
  width: 100%;
  padding: 18px;
  background: var(--red);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 20px;
  letter-spacing: 0.05em;
  border: 3px solid var(--black);
  border-radius: 16px;
  cursor: pointer;
  box-shadow: 5px 5px 0 var(--black);
  transition: all 0.15s ease;
  margin-bottom: 28px;
}

.start-btn:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 var(--black);
}

.start-btn:active {
  transform: translate(2px, 2px);
  box-shadow: 2px 2px 0 var(--black);
}

.start-facts {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  font-weight: 700;
  color: rgba(26,26,26,0.4);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.dot { color: var(--gold); }

/* ─── QUIZ SCREEN ────────────────────────────────── */
.quiz-topbar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
  background: rgba(255,254,247,0.12);
  backdrop-filter: blur(12px);
  border: 2px solid rgba(255,254,247,0.2);
  border-radius: 16px;
  padding: 12px 20px;
}

.quit-btn {
  background: none;
  border: 2px solid rgba(255,255,255,0.3);
  color: rgba(255,255,255,0.7);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 8px;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.2s ease;
}

.quit-btn:hover { border-color: var(--red); color: var(--red); }

.quiz-progress-wrap { flex: 1; }

.quiz-progress-bar {
  height: 8px;
  background: rgba(255,255,255,0.15);
  border-radius: 50px;
  overflow: hidden;
  margin-bottom: 4px;
}

.quiz-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--green), var(--gold));
  border-radius: 50px;
  transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.quiz-progress-text {
  font-size: 11px;
  font-weight: 700;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.1em;
}

.score-display {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--gold);
  color: var(--black);
  font-weight: 900;
  font-size: 16px;
  padding: 6px 16px;
  border-radius: 50px;
  border: 2px solid var(--black);
  white-space: nowrap;
}

.score-icon { font-size: 14px; }

/* QUESTION MAIN */
.quiz-main {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.q-category {
  display: inline-flex;
  align-self: flex-start;
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: 2px solid currentColor;
}

.q-number {
  font-family: var(--font-display);
  font-size: 13px;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.1em;
}

.q-card {
  background: var(--cream);
  border: 3px solid var(--black);
  border-radius: 24px;
  padding: 32px 28px;
  box-shadow: 6px 6px 0 var(--black);
  position: relative;
  overflow: hidden;
}

.q-card::after {
  content: '?';
  position: absolute;
  right: 20px;
  bottom: -10px;
  font-family: var(--font-display);
  font-size: 100px;
  color: rgba(26,26,26,0.04);
  line-height: 1;
  pointer-events: none;
}

.q-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--black);
  line-height: 1.5;
  position: relative;
  z-index: 1;
}

/* TIMER */
.timer-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.timer-track {
  flex: 1;
  height: 6px;
  background: rgba(255,255,255,0.15);
  border-radius: 50px;
  overflow: hidden;
}

.timer-fill {
  height: 100%;
  background: var(--green);
  border-radius: 50px;
  transition: width 1s linear, background 0.3s ease;
}

.timer-text {
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--white);
  min-width: 28px;
  text-align: right;
}

/* OPTIONS */
.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.option-btn {
  padding: 18px 20px;
  background: var(--cream);
  border: 2.5px solid var(--black);
  border-radius: 16px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  color: var(--black);
  cursor: pointer;
  text-align: left;
  box-shadow: 4px 4px 0 var(--black);
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  gap: 12px;
  line-height: 1.4;
}

.option-btn:hover:not(:disabled) {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--black);
  background: var(--gold-2);
}

.option-btn:active:not(:disabled) {
  transform: translate(2px, 2px);
  box-shadow: 1px 1px 0 var(--black);
}

.option-letter {
  width: 30px;
  height: 30px;
  background: var(--black);
  color: var(--white);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 900;
  flex-shrink: 0;
}

.option-btn.correct {
  background: var(--green);
  border-color: #1a7a35;
  box-shadow: 4px 4px 0 #1a7a35;
  color: var(--white);
}

.option-btn.correct .option-letter {
  background: rgba(255,255,255,0.3);
}

.option-btn.wrong {
  background: var(--red);
  border-color: #8b1a1a;
  box-shadow: 4px 4px 0 #8b1a1a;
  color: var(--white);
}

.option-btn.wrong .option-letter {
  background: rgba(255,255,255,0.3);
}

.option-btn.reveal {
  background: var(--green);
  border-color: #1a7a35;
  box-shadow: 4px 4px 0 #1a7a35;
  color: var(--white);
  animation: revealPulse 0.5s ease;
}

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

@keyframes revealPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.03); }
}

/* FEEDBACK */
.feedback-wrap {
  animation: screenIn 0.4s ease;
}

.feedback-card {
  border-radius: 20px;
  padding: 24px 24px 20px;
  border: 3px solid var(--black);
  box-shadow: 5px 5px 0 var(--black);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feedback-card.correct-fb { background: #d4f7e0; }
.feedback-card.wrong-fb   { background: #fde8e8; }

.feedback-icon { font-size: 32px; }
.feedback-verdict { font-size: 18px; font-weight: 900; color: var(--black); }
.feedback-fact { font-size: 14px; color: rgba(26,26,26,0.7); line-height: 1.7; }

.next-btn {
  align-self: flex-end;
  margin-top: 4px;
  padding: 12px 24px;
  background: var(--black);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 800;
  font-size: 14px;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.15s ease;
  box-shadow: 3px 3px 0 rgba(0,0,0,0.3);
}

.next-btn:hover {
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 rgba(0,0,0,0.3);
}

/* ─── RESULTS SCREEN ─────────────────────────────── */
.results-wrap {
  background: var(--cream);
  border: 4px solid var(--black);
  border-radius: 32px;
  padding: 52px 44px;
  text-align: center;
  box-shadow: 8px 8px 0 var(--black);
  position: relative;
  overflow: hidden;
}

.results-wrap::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 8px;
  background: repeating-linear-gradient(90deg, var(--green) 0px, var(--green) 20px, var(--gold) 20px, var(--gold) 40px, var(--red) 40px, var(--red) 60px, var(--purple) 60px, var(--purple) 80px);
}

.results-trophy { font-size: 72px; margin-bottom: 12px; margin-top: 12px; }
.results-title {
  font-family: var(--font-display);
  font-size: 36px;
  color: var(--black);
  margin-bottom: 20px;
}

.results-score-wrap { margin-bottom: 24px; }

.results-score {
  font-family: var(--font-display);
  font-size: 80px;
  color: var(--red);
  line-height: 1;
}

.results-score-label {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(26,26,26,0.4);
}

.results-stats {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.results-stat {
  background: var(--white);
  border: 2px solid rgba(26,26,26,0.12);
  border-radius: 12px;
  padding: 12px 20px;
  min-width: 90px;
}

.results-stat-num {
  font-family: var(--font-display);
  font-size: 28px;
  display: block;
}

.results-stat-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(26,26,26,0.45);
}

.results-message {
  font-size: 16px;
  font-weight: 700;
  color: rgba(26,26,26,0.7);
  margin-bottom: 24px;
  line-height: 1.6;
  padding: 0 12px;
}

.results-breakdown {
  background: var(--white);
  border: 2px solid rgba(26,26,26,0.1);
  border-radius: 16px;
  padding: 20px;
  margin-bottom: 28px;
  text-align: left;
}

.breakdown-title {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(26,26,26,0.4);
  margin-bottom: 14px;
}

.breakdown-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
}

.breakdown-cat {
  font-size: 13px;
  font-weight: 700;
  color: var(--black);
  width: 140px;
  flex-shrink: 0;
}

.breakdown-bar-wrap {
  flex: 1;
  height: 8px;
  background: rgba(26,26,26,0.08);
  border-radius: 50px;
  overflow: hidden;
}

.breakdown-bar-fill {
  height: 100%;
  border-radius: 50px;
  transition: width 1s cubic-bezier(0.16, 1, 0.3, 1);
}

.breakdown-score {
  font-size: 12px;
  font-weight: 800;
  color: rgba(26,26,26,0.5);
  min-width: 32px;
  text-align: right;
}

.results-btns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.results-btn-primary {
  padding: 16px;
  background: var(--red);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 17px;
  border: 3px solid var(--black);
  border-radius: 14px;
  cursor: pointer;
  box-shadow: 4px 4px 0 var(--black);
  transition: all 0.15s ease;
}

.results-btn-primary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--black);
}

.results-btn-secondary {
  padding: 16px;
  background: var(--gold);
  color: var(--black);
  font-family: var(--font-display);
  font-size: 17px;
  border: 3px solid var(--black);
  border-radius: 14px;
  cursor: pointer;
  box-shadow: 4px 4px 0 var(--black);
  transition: all 0.15s ease;
}

.results-btn-secondary:hover {
  transform: translate(-2px, -2px);
  box-shadow: 6px 6px 0 var(--black);
}

/* ─── RESPONSIVE ─────────────────────────────────── */
@media (max-width: 560px) {
  .start-wrap, .results-wrap { padding: 40px 24px; border-radius: 24px; }
  .diff-buttons { grid-template-columns: repeat(3, 1fr); }
  .options-grid { grid-template-columns: 1fr; }
  .option-btn { font-size: 14px; }
  .q-text { font-size: 17px; }
  .results-btns { grid-template-columns: 1fr; }
  .quiz-topbar { padding: 10px 14px; gap: 10px; }
}