/* style.css — Punk Rock Trivia Design System */

/* ─── DESIGN TOKENS ─── */
:root {
  /* Colors */
  --black: #111;
  --charcoal: #1a1a1a;
  --surface: #222;
  --surface-2: #2a2a2a;
  --surface-3: #333;
  --pink: #ff2d7b;
  --pink-dim: #cc1f5f;
  --pink-glow: rgba(255, 45, 123, 0.25);
  --yellow: #f5e642;
  --yellow-dim: #c4b830;
  --green: #39d98a;
  --red: #ff4444;
  --white: #ffffff;
  --text-primary: #ffffff;
  --text-muted: rgba(255,255,255,0.65);
  --text-faint: rgba(255,255,255,0.35);
  --border: rgba(255,255,255,0.1);
  --border-accent: rgba(255, 45, 123, 0.4);

  /* Spacing (4px base) */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 20px;
  --sp-6: 24px;
  --sp-8: 32px;
  --sp-10: 40px;
  --sp-12: 48px;
  --sp-16: 64px;
  --sp-20: 80px;

  /* Type scale (fluid) */
  --text-xs: clamp(0.7rem, 1.5vw, 0.75rem);
  --text-sm: clamp(0.8rem, 1.8vw, 0.875rem);
  --text-base: clamp(0.95rem, 2vw, 1rem);
  --text-lg: clamp(1.05rem, 2.5vw, 1.125rem);
  --text-xl: clamp(1.2rem, 3vw, 1.25rem);
  --text-2xl: clamp(1.4rem, 4vw, 1.5rem);
  --text-3xl: clamp(1.7rem, 5vw, 2rem);
  --text-4xl: clamp(2rem, 6vw, 2.75rem);
  --text-5xl: clamp(2.5rem, 8vw, 3.5rem);
  --text-6xl: clamp(3rem, 12vw, 5rem);
  --text-7xl: clamp(3.5rem, 15vw, 7rem);

  /* Easing */
  --ease-spring: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.0, 0.0, 0.2, 1);

  /* Radius */
  --r-sm: 2px;
  --r-md: 4px;
  --r-lg: 8px;
  --r-xl: 12px;
}

/* ─── BASE BODY ─── */
body {
  background: var(--black);
  color: var(--text-primary);
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: var(--text-base);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ─── NOISE BACKGROUND ─── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: 
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(255, 45, 123, 0.08) 0%, transparent 60%),
    url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  background-size: 100% 100%, 200px 200px;
  pointer-events: none;
  z-index: 0;
}

/* ─── GRID PATTERN ─── */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* ─── APP CONTAINER ─── */
#app {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--sp-6);
}

/* ─── SCREENS ─── */
.screen {
  display: none;
  width: 100%;
  max-width: 600px;
  animation: screen-in 0.35s var(--ease-spring) both;
}

.screen.active {
  display: flex;
  flex-direction: column;
  align-items: center;
}

@keyframes screen-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ─── TYPOGRAPHY ─── */
.font-display {
  font-family: 'Archivo Black', system-ui, sans-serif;
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.02em;
}

/* ─── GLITCH TITLE ─── */
.title-glitch {
  font-family: 'Archivo Black', system-ui, sans-serif;
  font-size: var(--text-7xl);
  color: var(--white);
  text-transform: uppercase;
  line-height: 0.9;
  letter-spacing: -0.03em;
  text-align: center;
  position: relative;
  animation: flicker 4s infinite;
}

.title-glitch .pink-line {
  color: var(--pink);
  display: block;
  text-shadow: 
    2px 0 0 rgba(245, 230, 66, 0.6),
    -2px 0 0 rgba(255, 45, 123, 0.4);
}

@keyframes flicker {
  0%, 95%, 100% { opacity: 1; }
  96% { opacity: 0.85; }
  97% { opacity: 1; }
  98% { opacity: 0.9; }
  99% { opacity: 1; }
}

.title-glitch::before {
  content: attr(data-text);
  position: absolute;
  inset: 0;
  color: var(--pink);
  clip-path: polygon(0 30%, 100% 30%, 100% 50%, 0 50%);
  transform: translateX(-2px);
  opacity: 0;
  animation: glitch-clip 5s infinite;
}

@keyframes glitch-clip {
  0%, 90%, 100% { opacity: 0; transform: translateX(0); }
  91% { opacity: 0.8; transform: translateX(3px); clip-path: polygon(0 20%, 100% 20%, 100% 40%, 0 40%); }
  92% { opacity: 0.8; transform: translateX(-3px); clip-path: polygon(0 60%, 100% 60%, 100% 80%, 0 80%); }
  93% { opacity: 0; }
}

.title-subtitle {
  font-size: var(--text-base);
  color: var(--text-muted);
  text-align: center;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: var(--sp-4);
}

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: var(--sp-4) var(--sp-8);
  font-family: 'Archivo Black', system-ui, sans-serif;
  font-size: var(--text-lg);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
  border: none;
  transition: all 180ms var(--ease-spring);
  position: relative;
  overflow: hidden;
  min-height: 56px;
  -webkit-tap-highlight-color: transparent;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0);
  transition: background 180ms;
}

.btn:hover::after { background: rgba(255,255,255,0.08); }
.btn:active { transform: scale(0.97); }
.btn:active::after { background: rgba(255,255,255,0.12); }

.btn-primary {
  background: var(--pink);
  color: var(--white);
  clip-path: polygon(4px 0%, 100% 0%, calc(100% - 4px) 100%, 0% 100%);
  padding-left: var(--sp-10);
  padding-right: var(--sp-10);
}

.btn-primary:hover {
  background: var(--pink-dim);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--pink-glow);
}

.btn-secondary {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--border);
  clip-path: polygon(4px 0%, 100% 0%, calc(100% - 4px) 100%, 0% 100%);
  padding-left: var(--sp-10);
  padding-right: var(--sp-10);
}

.btn-secondary:hover {
  border-color: rgba(255,255,255,0.4);
  transform: translateY(-2px);
}

.btn-yellow {
  background: var(--yellow);
  color: var(--black);
  clip-path: polygon(4px 0%, 100% 0%, calc(100% - 4px) 100%, 0% 100%);
  padding-left: var(--sp-10);
  padding-right: var(--sp-10);
}

.btn-yellow:hover {
  background: var(--yellow-dim);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 230, 66, 0.25);
}

.btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none !important;
}

.btn-group {
  display: flex;
  gap: var(--sp-4);
  flex-wrap: wrap;
  justify-content: center;
  margin-top: var(--sp-8);
  width: 100%;
}

/* ─── INPUTS ─── */
.input-wrap {
  width: 100%;
  margin-bottom: var(--sp-4);
}

.input-label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  margin-bottom: var(--sp-2);
}

.input-field {
  width: 100%;
  background: var(--surface);
  border: 2px solid var(--border);
  color: var(--text-primary);
  padding: var(--sp-4) var(--sp-4);
  font-size: var(--text-lg);
  font-family: 'DM Sans', sans-serif;
  transition: border-color 180ms;
  border-radius: var(--r-sm);
  min-height: 52px;
}

.input-field:focus {
  border-color: var(--pink);
  background: var(--surface-2);
  outline: none;
}

.input-field::placeholder {
  color: var(--text-faint);
}

/* Room code input — big and bold */
.input-code {
  text-transform: uppercase;
  font-family: 'Archivo Black', sans-serif;
  font-size: var(--text-3xl);
  letter-spacing: 0.2em;
  text-align: center;
}

/* ─── ROOM CODE DISPLAY ─── */
.room-code-display {
  background: var(--surface);
  border: 2px solid var(--pink);
  padding: var(--sp-8) var(--sp-12);
  text-align: center;
  position: relative;
  margin: var(--sp-6) 0;
  width: 100%;
  clip-path: polygon(8px 0%, 100% 0%, calc(100% - 8px) 100%, 0% 100%);
  animation: pulse-border 2s ease-in-out infinite;
}

@keyframes pulse-border {
  0%, 100% { box-shadow: 0 0 0 0 var(--pink-glow); border-color: var(--pink); }
  50% { box-shadow: 0 0 20px 4px var(--pink-glow); border-color: var(--pink); }
}

.room-code-label {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: var(--sp-2);
}

.room-code-value {
  font-family: 'Archivo Black', sans-serif;
  font-size: var(--text-6xl);
  color: var(--yellow);
  letter-spacing: 0.15em;
  line-height: 1;
  text-shadow: 0 0 30px rgba(245, 230, 66, 0.4);
}

.room-code-hint {
  font-size: var(--text-sm);
  color: var(--text-muted);
  margin-top: var(--sp-3);
}

/* ─── PLAYER LIST ─── */
.player-list-wrap {
  width: 100%;
  margin-top: var(--sp-6);
}

.player-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-3);
}

.player-list-title {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  font-weight: 700;
}

.player-count-badge {
  background: var(--pink);
  color: var(--white);
  font-size: var(--text-xs);
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 100px;
  font-family: 'Archivo Black', sans-serif;
  letter-spacing: 0.05em;
  min-width: 24px;
  text-align: center;
}

.player-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.player-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  background: var(--surface);
  border: 1px solid var(--border);
  animation: player-in 0.3s var(--ease-spring) both;
}

@keyframes player-in {
  from { opacity: 0; transform: translateX(-10px); }
  to   { opacity: 1; transform: translateX(0); }
}

.player-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
  box-shadow: 0 0 6px var(--green);
}

.player-name {
  font-size: var(--text-base);
  font-weight: 600;
}

.player-host-tag {
  font-size: var(--text-xs);
  color: var(--pink);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  margin-left: auto;
}

.waiting-msg {
  text-align: center;
  color: var(--text-muted);
  font-size: var(--text-sm);
  margin-top: var(--sp-6);
  letter-spacing: 0.05em;
}

/* Pulsing dots for loading states */
.dots::after {
  content: '';
  animation: dots 1.5s infinite;
}
@keyframes dots {
  0%   { content: ''; }
  33%  { content: '.'; }
  66%  { content: '..'; }
  100% { content: '...'; }
}

/* ─── SECTION HEADER ─── */
.screen-title {
  font-family: 'Archivo Black', sans-serif;
  font-size: var(--text-4xl);
  text-transform: uppercase;
  letter-spacing: -0.02em;
  text-align: center;
  margin-bottom: var(--sp-8);
  line-height: 1;
}

.screen-title .accent {
  color: var(--pink);
}

/* ─── QUESTION SCREEN ─── */
.question-header {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-4);
}

.question-number {
  font-family: 'Archivo Black', sans-serif;
  font-size: var(--text-xl);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.score-display {
  font-family: 'Archivo Black', sans-serif;
  font-size: var(--text-xl);
  color: var(--yellow);
  letter-spacing: 0.05em;
}

/* Timer bar */
.timer-wrap {
  width: 100%;
  margin-bottom: var(--sp-6);
  position: relative;
}

.timer-bar-bg {
  height: 6px;
  background: var(--surface-3);
  overflow: hidden;
}

.timer-bar {
  height: 100%;
  width: 100%;
  background: var(--green);
  transform-origin: left;
  transition: background 0.5s ease;
}

.timer-count {
  font-family: 'Archivo Black', sans-serif;
  font-size: var(--text-sm);
  color: var(--text-muted);
  text-align: right;
  margin-top: var(--sp-1);
}

/* Category badge */
.question-category {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--pink);
  font-weight: 700;
  margin-bottom: var(--sp-3);
  align-self: flex-start;
}

/* Question text */
.question-text {
  font-family: 'Archivo Black', sans-serif;
  font-size: var(--text-3xl);
  line-height: 1.15;
  text-align: center;
  margin-bottom: var(--sp-8);
  color: var(--white);
  width: 100%;
}

/* Answer grid */
.answer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-3);
  width: 100%;
}

@media (max-width: 480px) {
  .answer-grid {
    grid-template-columns: 1fr;
  }
}

.answer-btn {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-4) var(--sp-5);
  background: var(--surface);
  border: 2px solid var(--border);
  color: var(--text-primary);
  cursor: pointer;
  text-align: left;
  transition: all 180ms var(--ease-spring);
  min-height: 72px;
  position: relative;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}

.answer-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: transparent;
  transition: background 180ms;
}

.answer-btn:hover:not(:disabled) {
  border-color: rgba(255,255,255,0.3);
  background: var(--surface-2);
  transform: translateY(-1px);
}

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

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

.answer-letter {
  width: 36px;
  height: 36px;
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Archivo Black', sans-serif;
  font-size: var(--text-base);
  font-weight: 900;
  flex-shrink: 0;
  transition: all 180ms var(--ease-spring);
}

.answer-letter-a { background: rgba(255, 45, 123, 0.2); color: var(--pink); }
.answer-letter-b { background: rgba(245, 230, 66, 0.15); color: var(--yellow); }
.answer-letter-c { background: rgba(57, 217, 138, 0.15); color: var(--green); }
.answer-letter-d { background: rgba(100, 180, 255, 0.15); color: #64b4ff; }

.answer-text {
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1.3;
  flex: 1;
}

/* Correct/wrong states */
.answer-btn.correct {
  background: rgba(57, 217, 138, 0.15);
  border-color: var(--green);
}

.answer-btn.correct .answer-letter {
  background: var(--green);
  color: var(--black);
}

.answer-btn.wrong {
  background: rgba(255, 68, 68, 0.1);
  border-color: var(--red);
  opacity: 0.7;
}

.answer-btn.wrong .answer-letter {
  background: var(--red);
  color: var(--white);
}

.answer-btn.dim {
  opacity: 0.35;
}

/* Points animation */
.points-pop {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-family: 'Archivo Black', sans-serif;
  font-size: var(--text-5xl);
  color: var(--yellow);
  text-shadow: 0 0 20px rgba(245, 230, 66, 0.6);
  pointer-events: none;
  z-index: 100;
  animation: points-fly 1.5s var(--ease-spring) forwards;
  white-space: nowrap;
}

@keyframes points-fly {
  0%   { opacity: 0; transform: translate(-50%, -30%); }
  20%  { opacity: 1; transform: translate(-50%, -50%); }
  70%  { opacity: 1; transform: translate(-50%, -65%); }
  100% { opacity: 0; transform: translate(-50%, -80%); }
}

/* Host next button */
.host-next-wrap {
  margin-top: var(--sp-6);
  width: 100%;
  text-align: center;
}

.result-feedback {
  text-align: center;
  margin-top: var(--sp-5);
  font-family: 'Archivo Black', sans-serif;
  font-size: var(--text-2xl);
  animation: fade-in 0.3s ease;
}

.result-feedback.correct { color: var(--green); }
.result-feedback.wrong { color: var(--red); }
.result-feedback.timeout { color: var(--yellow); }

@keyframes fade-in {
  from { opacity: 0; transform: scale(0.8); }
  to   { opacity: 1; transform: scale(1); }
}

/* ─── LEADERBOARD / RESULTS ─── */
.game-over-title {
  font-family: 'Archivo Black', sans-serif;
  font-size: var(--text-6xl);
  text-transform: uppercase;
  text-align: center;
  line-height: 0.9;
  margin-bottom: var(--sp-3);
}

.game-over-sub {
  font-size: var(--text-base);
  color: var(--text-muted);
  text-align: center;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--sp-8);
}

.leaderboard {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--sp-3);
  margin-bottom: var(--sp-8);
}

.lb-item {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  padding: var(--sp-4) var(--sp-5);
  background: var(--surface);
  border: 2px solid var(--border);
  animation: lb-in 0.4s var(--ease-spring) both;
}

.lb-item:nth-child(1) { animation-delay: 0.1s; border-color: var(--yellow); background: rgba(245, 230, 66, 0.06); }
.lb-item:nth-child(2) { animation-delay: 0.2s; border-color: rgba(192, 192, 192, 0.4); }
.lb-item:nth-child(3) { animation-delay: 0.3s; border-color: rgba(205, 127, 50, 0.4); }
.lb-item:nth-child(n+4) { animation-delay: 0.4s; }

@keyframes lb-in {
  from { opacity: 0; transform: translateX(-20px); }
  to   { opacity: 1; transform: translateX(0); }
}

.lb-rank {
  font-family: 'Archivo Black', sans-serif;
  font-size: var(--text-2xl);
  width: 44px;
  text-align: center;
  flex-shrink: 0;
}

.lb-item:nth-child(1) .lb-rank { color: var(--yellow); }
.lb-item:nth-child(2) .lb-rank { color: #c0c0c0; }
.lb-item:nth-child(3) .lb-rank { color: #cd7f32; }

.lb-name {
  flex: 1;
  font-size: var(--text-lg);
  font-weight: 600;
}

.lb-score-wrap {
  text-align: right;
}

.lb-score {
  font-family: 'Archivo Black', sans-serif;
  font-size: var(--text-2xl);
  color: var(--yellow);
  font-variant-numeric: tabular-nums;
}

.lb-correct {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: 2px;
}

/* ─── ERROR / INFO TOAST ─── */
.toast {
  position: fixed;
  bottom: var(--sp-8);
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  background: var(--surface-3);
  border: 1px solid var(--border);
  padding: var(--sp-3) var(--sp-6);
  font-size: var(--text-sm);
  font-weight: 600;
  white-space: nowrap;
  z-index: 200;
  transition: transform 0.3s var(--ease-spring);
  pointer-events: none;
  max-width: calc(100vw - 48px);
  text-align: center;
  white-space: normal;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
}

.toast.error { border-color: var(--red); color: var(--red); }
.toast.success { border-color: var(--green); color: var(--green); }

/* ─── DECORATIVE LINES ─── */
.divider {
  width: 100%;
  height: 1px;
  background: var(--border);
  margin: var(--sp-6) 0;
}

.divider-pink {
  background: linear-gradient(90deg, transparent, var(--pink), transparent);
}

/* ─── BACK BUTTON ─── */
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  color: var(--text-muted);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  margin-bottom: var(--sp-8);
  padding: var(--sp-2) 0;
  background: none;
  border: none;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  align-self: flex-start;
  transition: color 180ms;
}

.back-btn:hover { color: var(--white); }

/* ─── REDUCED MOTION ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* ─── LOADING SPINNER ─── */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.2);
  border-top-color: var(--pink);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ─── HOME SCREEN SPECIFIC ─── */
.home-logo-area {
  margin-bottom: var(--sp-6);
  text-align: center;
}

.home-tagline {
  color: var(--text-muted);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  text-align: center;
  margin-top: var(--sp-2);
}

/* Decorative scribble accent */
.accent-bar {
  width: 60px;
  height: 4px;
  background: var(--pink);
  margin: var(--sp-4) auto;
  clip-path: polygon(0 0, 100% 0, calc(100% - 4px) 100%, 4px 100%);
}

/* ─── WAITING ROOM SPINNER ─── */
.wait-indicator {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  color: var(--text-muted);
  font-size: var(--text-sm);
  margin-top: var(--sp-5);
  justify-content: center;
}

/* ─── ANSWER REVEAL OVERLAY ─── */
.reveal-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  background: var(--green);
  transition: width 0.3s ease;
}

/* Answer buttons - selected state during reveal */
.answer-btn.selected {
  border-color: var(--pink);
  background: rgba(255, 45, 123, 0.1);
}

/* ─── QUESTION TRANSITION ─── */
.question-transition {
  animation: q-fade 0.3s ease both;
}

@keyframes q-fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}