/* ============================================================
   ESCAPE THE VIVA - Complete Stylesheet
   ============================================================ */

*, *::before, *::after {
  margin: 0; padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%; height: 100%;
  background: #080300;
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ========== GAME CONTAINER ========== */
#game-container {
  width: 100vw;
  height: 100vh;
  background: linear-gradient(135deg, #1a0800 0%, #2d1200 50%, #1a0800 100%);
  position: relative;
  overflow: hidden;
}

@media (min-width: 900px) and (min-height: 600px) {
  #game-container {
    width: 920px;
    height: 600px;
    border-radius: 14px;
    box-shadow: 0 0 80px rgba(255,60,0,0.35), 0 0 200px rgba(255,60,0,0.1);
  }
}

/* Grid overlay */
#game-container::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(0deg, transparent, transparent 49px, rgba(255,255,255,0.015) 50px),
    repeating-linear-gradient(90deg, transparent, transparent 49px, rgba(255,255,255,0.015) 50px);
  pointer-events: none;
  z-index: 0;
}

/* Scanlines */
#game-container::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg, transparent, transparent 3px,
    rgba(0,0,0,0.02) 3px, rgba(0,0,0,0.02) 4px
  );
  pointer-events: none;
  z-index: 1000;
}

.vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 50%, rgba(0,0,0,0.7) 100%);
  pointer-events: none;
  z-index: 5;
}

/* ========== SCREENS ========== */
.screen {
  display: none;
  width: 100%; height: 100%;
  position: absolute;
  top: 0; left: 0;
  z-index: 10;
}
.screen.active { display: flex; }

/* ========== SCREEN FLASH ========== */
.screen-flash {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 500;
  display: none;
  border-radius: inherit;
}

/* ========== CREDITS (desktop floating) ========== */
.credits {
  position: absolute;
  bottom: 8px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.25);
  font-size: clamp(9px, 1.8vw, 11px);
  letter-spacing: 0.5px;
  z-index: 999;
  white-space: nowrap;
  text-align: center;
}
.credits-link {
  color: #f0b429;
  text-decoration: none;
  font-weight: 700;
  transition: color 0.2s;
  cursor: pointer;
  border-bottom: 1px dotted #f0b429;
}
.credits-link:hover { color: #ffd700; border-bottom-color: #ffd700; }

/* Credits inside end screen — always visible on mobile */
.credits-inline {
  color: rgba(255,255,255,0.25);
  font-size: clamp(9px, 1.8vw, 11px);
  letter-spacing: 0.5px;
  text-align: center;
  white-space: nowrap;
  margin-top: 4px;
  padding-bottom: 8px;
}
@media (min-width: 900px) and (min-height: 600px) {
  .credits-inline { display: none; }
}

/* ========== MUTE BUTTON — REMOVED ========== */
.mute-btn { display: none !important; }

/* ========== BG PARTICLES ========== */
.bg-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 0;
}
.bg-particle {
  position: absolute;
  border-radius: 50%;
  opacity: 0;
  animation: bgFloat linear infinite;
}
@keyframes bgFloat {
  0% { transform: translateY(110%) rotate(0deg); opacity: 0; }
  10% { opacity: 0.12; }
  90% { opacity: 0.12; }
  100% { transform: translateY(-10%) rotate(360deg); opacity: 0; }
}

/* ========== START SCREEN ========== */
#start-screen {
  flex-direction: column;
  background: linear-gradient(160deg, #080300 0%, #1a0800 50%, #0d0500 100%);
  padding: 0;
  align-items: stretch;
  justify-content: stretch;
  overflow-y: auto;
}

.start-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100%;
  padding: clamp(16px, 3vw, 30px) clamp(16px, 4vw, 50px);
  gap: clamp(8px, 2vw, 16px);
  position: relative;
  z-index: 10;
}

@media (min-width: 650px) {
  .start-content {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    height: 100%;
  }
}

.start-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(6px, 1.5vw, 12px);
  z-index: 2;
  text-align: center;
  max-width: 340px;
  width: 100%;
}

@media (min-width: 650px) {
  .start-left { align-items: flex-start; text-align: left; }
}

/* Force all children centered on mobile */
.start-left .diff-selector { align-items: center; }
.start-left .diff-btns { justify-content: center; }
.start-left .lifelines-info { justify-content: center; }
.start-left .start-stats { justify-content: center; }

.start-badge {
  background: rgba(230,48,48,0.15);
  border: 1px solid rgba(230,48,48,0.4);
  color: #ff8080;
  font-size: clamp(8px, 1.8vw, 10px);
  font-weight: 700;
  letter-spacing: 2px;
  padding: 4px 12px;
  border-radius: 20px;
  text-transform: uppercase;
}

.start-title {
  font-size: clamp(42px, 10vw, 68px);
  font-weight: 900;
  line-height: 0.9;
  text-shadow: 4px 4px 0 #000;
  letter-spacing: -1px;
}
.start-title .escape { color: #ffffff; }
.start-title .the { color: #cccccc; font-size: 0.65em; letter-spacing: 4px; }
.start-title .viva {
  color: #e63030;
  text-shadow: 4px 4px 0 #000, 0 0 40px rgba(230,48,48,0.6);
}

.start-subtitle {
  color: #999;
  font-size: clamp(10px, 2.2vw, 13px);
  max-width: 260px;
  line-height: 1.5;
  font-style: italic;
}

.start-stats {
  display: flex;
  gap: clamp(12px, 3vw, 24px);
}
.start-stat { text-align: center; }
.start-stat-num {
  color: #f0b429;
  font-size: clamp(18px, 4vw, 26px);
  font-weight: 900;
}
.start-stat-label {
  color: #666;
  font-size: clamp(8px, 1.5vw, 10px);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* Lifelines info */
.lifelines-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: clamp(9px, 1.8vw, 11px);
  color: #888;
}
.ll-badge {
  background: rgba(255,150,0,0.15);
  border: 1px solid rgba(255,150,0,0.3);
  color: #f0b429;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 700;
  font-size: clamp(9px, 1.8vw, 11px);
}

/* Difficulty selector */
.diff-selector { display: flex; flex-direction: column; gap: 6px; width: 100%; }
.diff-label { color: #666; font-size: clamp(8px, 1.5vw, 10px); letter-spacing: 2px; text-transform: uppercase; }
.diff-btns { display: flex; gap: 6px; }
.diff-btn {
  padding: clamp(5px,1.2vw,7px) clamp(10px,2vw,14px);
  border-radius: 6px;
  border: 1.5px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.05);
  color: #aaa;
  font-size: clamp(10px,2vw,12px);
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
}
.diff-btn:hover { border-color: rgba(255,255,255,0.3); color: #fff; }
.diff-btn.active { border-color: #f0b429; background: rgba(240,180,41,0.15); color: #f0b429; }
.diff-btn[data-diff="hard"].active { border-color: #e74c3c; background: rgba(231,76,60,0.15); color: #e74c3c; }
.diff-btn[data-diff="easy"].active { border-color: #2ecc71; background: rgba(46,204,113,0.15); color: #2ecc71; }

.start-btn {
  padding: clamp(11px,2.5vw,15px) clamp(22px,5vw,36px);
  background: linear-gradient(135deg, #b87200, #f0b429);
  color: #000;
  font-size: clamp(13px,2.8vw,17px);
  font-weight: 900;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 2px;
  box-shadow: 0 6px 24px rgba(240,180,41,0.45), inset 0 1px 0 rgba(255,255,255,0.3);
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
  width: 100%;
}
.start-btn::after {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.35) 50%, transparent 70%);
  animation: btnShine 2.5s infinite;
}
@keyframes btnShine {
  0% { transform: translateX(-100%) rotate(45deg); }
  100% { transform: translateX(100%) rotate(45deg); }
}
.start-btn:hover { transform: translateY(-3px); box-shadow: 0 12px 32px rgba(240,180,41,0.65); }
.start-btn:active { transform: translateY(0); }

.high-score-display {
  color: #f0b429;
  font-size: clamp(9px,1.8vw,11px);
  font-weight: 700;
  letter-spacing: 1px;
  min-height: 16px;
}

/* START RIGHT — hide student on mobile to avoid giant empty space */
.start-right {
  display: none;
}
@media (min-width: 650px) {
  .start-right {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
  }
}

.start-student svg {
  width: clamp(160px, 35vw, 250px);
  height: auto;
}

/* ========== GAME SCREEN ========== */
#game-screen {
  flex-direction: column;
  background: linear-gradient(160deg, #0a0400 0%, #1a0800 60%, #0a0400 100%);
  overflow: hidden;
}

/* Timer bar */
.timer-wrapper {
  height: 5px;
  background: rgba(255,255,255,0.04);
  flex-shrink: 0;
  position: relative;
  z-index: 20;
}
.timer-bar {
  height: 100%;
  background: linear-gradient(90deg, #e63030, #ff9900, #ffee00);
  transition: width 1s linear;
  box-shadow: 0 0 10px rgba(255,150,0,0.7);
}

/* HUD */
.hud {
  display: flex;
  align-items: center;
  gap: clamp(6px,1.5vw,12px);
  padding: 8px clamp(8px,2vw,16px);
  background: rgba(0,0,0,0.7);
  border-bottom: 1px solid rgba(255,100,0,0.2);
  flex-shrink: 0;
  z-index: 20;
  min-height: 44px;
}

.hud-stat {
  display: flex;
  align-items: center;
  gap: clamp(4px,1vw,7px);
  flex: 1;
  min-width: 0;
}
.hud-stat.reverse { flex-direction: row-reverse; }

.hud-label {
  display: flex;
  align-items: center;
  gap: 3px;
  font-size: 11px;
  font-weight: 900;
  white-space: nowrap;
  color: #ff6b6b;
  flex-shrink: 0;
}
/* Always show label text — emoji + short text fits fine */
.hud-label-text { display: inline; font-size: 10px; }
.anger-label { color: #f1c40f; }

.bar-container {
  flex: 1;
  height: clamp(8px,1.8vw,13px);
  background: rgba(255,255,255,0.07);
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.06);
  min-width: 30px;
}
.bar-fill {
  height: 100%;
  border-radius: 8px;
  transition: width 0.6s cubic-bezier(0.4,0,0.2,1);
  position: relative;
  overflow: hidden;
}
.bar-fill::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 45%;
  background: rgba(255,255,255,0.22);
  border-radius: 8px;
}
.stress-bar { background: linear-gradient(90deg, #c0392b, #e74c3c, #ff6b6b); }
.anger-bar { background: linear-gradient(90deg, #c47800, #f39c12, #f1c40f); }

.bar-pct {
  font-size: 11px;
  font-weight: 900;
  min-width: 30px;
  text-align: right;
  flex-shrink: 0;
}
.stress-pct { color: #ff6b6b; }
.anger-pct { color: #f1c40f; }
/* FIX: question number now clearly visible */
.hud-center {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  gap: 1px;
}

.hud-q-num {
  color: #ffffff;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 1px;
  background: rgba(255,150,0,0.2);
  border: 1.5px solid rgba(255,150,0,0.5);
  border-radius: 6px;
  padding: 3px 10px;
  white-space: nowrap;
}
.streak-display { color: #f0b429; font-size: clamp(8px,1.5vw,10px); font-weight: 800; letter-spacing: 1px; min-height: 12px; }
.hud-score { color: rgba(255,255,255,0.7); font-size: 11px; font-weight: 700; white-space: nowrap; }

/* Lifelines bar */
.lifelines-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: clamp(4px,1vw,6px) clamp(10px,2.5vw,18px);
  background: rgba(0,0,0,0.35);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  flex-shrink: 0;
  z-index: 20;
}

.lifeline-btn {
  padding: clamp(4px,1vw,6px) clamp(10px,2.5vw,16px);
  border-radius: 20px;
  border: 1.5px solid rgba(240,180,41,0.4);
  background: rgba(240,180,41,0.1);
  color: #f0b429;
  font-size: clamp(9px,1.8vw,12px);
  font-weight: 800;
  cursor: pointer;
  transition: all 0.2s;
  letter-spacing: 0.5px;
}
.lifeline-btn:hover:not(:disabled) { background: rgba(240,180,41,0.25); border-color: #f0b429; }
.lifeline-btn:disabled { opacity: 0.3; cursor: not-allowed; border-color: rgba(255,255,255,0.1); color: #666; }
.lifeline-btn.used { opacity: 0.25; cursor: not-allowed; text-decoration: line-through; }

.timer-display {
  display: flex;
  align-items: center;
  gap: 3px;
  font-size: clamp(14px,3vw,20px);
  font-weight: 900;
  color: #f0b429;
  font-variant-numeric: tabular-nums;
}
#timer-num { min-width: 22px; text-align: center; }
.timer-display.urgent { color: #e74c3c; animation: timerUrgent 0.5s infinite alternate; }
@keyframes timerUrgent { from { transform: scale(1); } to { transform: scale(1.15); } }

/* ========== GAME AREA ========== */
.game-area {
  display: flex;
  flex: 1;
  overflow: hidden;
  position: relative;
  /* Mobile: column layout */
  flex-direction: column;
  padding: 8px 10px;
  gap: 8px;
}

@media (min-width: 600px) {
  .game-area {
    flex-direction: row;
    padding: clamp(8px,1.5vw,14px) clamp(10px,2vw,18px);
    gap: clamp(10px,2vw,18px);
  }
}

/* ========== PROFESSOR PANEL ========== */
/* Mobile: horizontal strip at top */
.prof-panel {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

@media (min-width: 600px) {
  .prof-panel {
    flex-direction: column;
    width: clamp(170px,22vw,220px);
    gap: 0;
    align-items: center;
    flex-shrink: 0;
  }
}

.speech-bubble {
  background: linear-gradient(135deg, #fefae8, #f5edd0);
  border: 2.5px solid #c8a84b;
  border-radius: 14px;
  padding: 8px 12px;
  font-size: clamp(10px,2.2vw,12px);
  font-weight: 700;
  color: #1a1000;
  text-align: center;
  line-height: 1.4;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 2px 3px 10px rgba(0,0,0,0.4), inset 0 1px 0 rgba(255,255,255,0.6);
  animation: bubbleAppear 0.35s cubic-bezier(0.34,1.56,0.64,1);
  /* Mobile: take remaining space next to professor */
  flex: 1;
  min-height: 52px;
}

@media (min-width: 600px) {
  .speech-bubble {
    width: 100%;
    flex: unset;
    font-size: clamp(11px,1.8vw,13px);
    min-height: clamp(60px,9vw,75px);
  }
  .speech-bubble::after {
    content: '';
    position: absolute;
    bottom: -18px; left: 50%;
    transform: translateX(-50%);
    border: 10px solid transparent;
    border-top-color: #c8a84b;
  }
  .speech-bubble::before {
    content: '';
    position: absolute;
    bottom: -12px; left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: #fefae8;
    z-index: 1;
  }
}
@keyframes bubbleAppear {
  from { transform: scale(0.82); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.prof-character-wrap { position: relative; flex-shrink: 0; }
.prof-character-wrap svg { display: block; }

/* Mobile: smaller professor */
@media (max-width: 599px) {
  .prof-character-wrap svg { width: 65px; height: 75px; }
}

.prof-svg-wrapper { animation: profIdle 3s ease-in-out infinite; display: block; }
@keyframes profIdle { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }
.prof-svg-wrapper.angry { animation: profAngry 0.25s ease-in-out infinite; }
@keyframes profAngry { 0%,100% { transform: rotate(0); } 25% { transform: rotate(-2.5deg) translateY(-2px); } 75% { transform: rotate(2.5deg) translateY(-2px); } }
.prof-svg-wrapper.very-angry { animation: profVeryAngry 0.15s ease-in-out infinite; }
@keyframes profVeryAngry { 0%,100% { transform: rotate(0) scale(1); } 25% { transform: rotate(-4deg) scale(1.02) translateY(-3px); } 75% { transform: rotate(4deg) scale(1.02) translateY(-3px); } }
.prof-svg-wrapper.happy { animation: profHappy 0.7s ease-in-out; }
@keyframes profHappy { 0%,100% { transform: translateY(0) scale(1); } 40% { transform: translateY(-10px) scale(1.03); } }

.prof-angry-effects {
  position: absolute;
  top: -8px; right: -8px;
  font-size: clamp(14px,3vw,20px);
  display: none;
  animation: angerPulse 0.4s infinite alternate;
  filter: drop-shadow(0 0 5px rgba(255,0,0,0.9));
}
@keyframes angerPulse { from { transform: scale(1) rotate(-8deg); } to { transform: scale(1.35) rotate(8deg); } }

.prof-name-tag {
  color: rgba(255,255,255,0.4);
  font-size: clamp(8px,1.5vw,10px);
  font-weight: 700;
  letter-spacing: 1px;
  margin-top: 4px;
  display: none;
}
@media (min-width: 600px) { .prof-name-tag { display: block; } }

/* ========== QUESTIONS PANEL ========== */
.questions-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  /* FIX: allow natural height, no overflow hidden on mobile */
  overflow: hidden;
  min-height: 0;
}

@media (min-width: 600px) {
  .questions-panel {
    gap: clamp(5px,1.2vw,9px);
  }
}

.question-header {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.topic-badge {
  padding: 3px 10px;
  border-radius: 20px;
  font-size: clamp(8px,1.6vw,10px);
  font-weight: 800;
  letter-spacing: 1.5px;
  background: rgba(255,150,0,0.12);
  border: 1.5px solid rgba(255,150,0,0.35);
  color: #ffb830;
  text-transform: uppercase;
}

.diff-badge {
  padding: 3px 10px;
  border-radius: 20px;
  font-size: clamp(7px,1.4vw,9px);
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  border: 1.5px solid;
}
.diff-badge.easy { color: #2ecc71; border-color: rgba(46,204,113,0.4); background: rgba(46,204,113,0.1); }
.diff-badge.medium { color: #f39c12; border-color: rgba(243,156,18,0.4); background: rgba(243,156,18,0.1); }
.diff-badge.hard { color: #e74c3c; border-color: rgba(231,76,60,0.4); background: rgba(231,76,60,0.1); }

.question-text {
  background: rgba(10,5,0,0.88);
  border: 1.5px solid rgba(255,140,0,0.2);
  border-radius: 10px;
  padding: clamp(8px,2vw,15px) clamp(10px,2.5vw,18px);
  color: #f0d090;
  font-size: clamp(12px,2.6vw,15px);
  font-weight: 700;
  line-height: 1.45;
  flex-shrink: 0;
  box-shadow: inset 0 2px 10px rgba(0,0,0,0.35);
  animation: questionSlide 0.3s ease;
}
@keyframes questionSlide {
  from { transform: translateY(-8px); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Hint box */
.hint-box {
  background: rgba(46,204,113,0.1);
  border: 1.5px solid rgba(46,204,113,0.35);
  border-radius: 8px;
  padding: clamp(6px,1.5vw,10px) clamp(10px,2vw,14px);
  color: #2ecc71;
  font-size: clamp(10px,2vw,12px);
  font-weight: 600;
  font-style: italic;
  flex-shrink: 0;
  animation: hintAppear 0.3s ease;
}
@keyframes hintAppear {
  from { transform: scale(0.95); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

/* ========== OPTIONS — KEY FIX ========== */
.options-grid {
  display: flex;
  flex-direction: column;
  gap: 6px;
  /* FIX: don't stretch to fill remaining space on mobile */
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.option-btn {
  display: flex;
  align-items: center;
  gap: clamp(8px,1.8vw,13px);
  padding: clamp(9px,1.6vw,11px) clamp(10px,2vw,16px);
  background: linear-gradient(90deg, rgba(150,110,30,0.18), rgba(110,75,15,0.1));
  border: 1.5px solid rgba(150,110,30,0.3);
  border-radius: 8px;
  color: #ddc870;
  font-size: clamp(11px,2.2vw,13px);
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: all 0.18s ease;
  position: relative;
  overflow: hidden;
  /* FIX: equal height buttons, not stretching */
  flex: 1;
  min-height: 42px;
  max-height: 70px;
}

.option-btn::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
  transition: left 0.35s;
}
.option-btn:hover::before { left: 100%; }
.option-btn:hover:not(:disabled) {
  background: linear-gradient(90deg, rgba(200,150,50,0.3), rgba(160,115,35,0.2));
  border-color: rgba(210,160,60,0.6);
  transform: translateX(4px);
  color: #fff;
  box-shadow: 0 2px 14px rgba(200,150,50,0.18);
}
.option-btn:disabled { cursor: default; }
.option-btn.eliminated {
  opacity: 0.2;
  pointer-events: none;
  text-decoration: line-through;
}

/* Stagger animation */
.option-btn { animation: optSlideIn 0.3s ease both; }
.option-btn:nth-child(1) { animation-delay: 0.04s; }
.option-btn:nth-child(2) { animation-delay: 0.09s; }
.option-btn:nth-child(3) { animation-delay: 0.14s; }
.option-btn:nth-child(4) { animation-delay: 0.19s; }
@keyframes optSlideIn {
  from { transform: translateX(18px); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

.option-letter {
  width: clamp(22px,4.5vw,28px);
  height: clamp(22px,4.5vw,28px);
  border-radius: 7px;
  display: flex; align-items: center; justify-content: center;
  font-weight: 900;
  font-size: clamp(10px,2vw,12px);
  flex-shrink: 0;
  color: #fff;
  box-shadow: 0 2px 5px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.2);
}
.opt-a .option-letter { background: linear-gradient(135deg, #1e8449, #27ae60); }
.opt-b .option-letter { background: linear-gradient(135deg, #1a6eb5, #2980b9); }
.opt-c .option-letter { background: linear-gradient(135deg, #76349a, #9b59b6); }
.opt-d .option-letter { background: linear-gradient(135deg, #c0392b, #e74c3c); }

.opt-text { flex: 1; }
.opt-tick { margin-left: auto; color: #2ecc71; font-weight: 900; font-size: 14px; }

.option-btn.correct {
  background: linear-gradient(90deg, rgba(22,130,22,0.55), rgba(16,100,16,0.35)) !important;
  border-color: #2ecc71 !important;
  color: #fff !important;
  box-shadow: 0 0 18px rgba(46,204,113,0.45) !important;
  animation: correctPulse 0.45s ease !important;
}
@keyframes correctPulse {
  0% { transform: scale(1); }
  45% { transform: scale(1.04); }
  100% { transform: scale(1); }
}
.option-btn.wrong {
  background: linear-gradient(90deg, rgba(170,18,18,0.55), rgba(130,8,8,0.35)) !important;
  border-color: #e74c3c !important;
  color: #fff !important;
  box-shadow: 0 0 18px rgba(231,76,60,0.45) !important;
  animation: optShake 0.45s ease !important;
}
@keyframes optShake {
  0%,100% { transform: translateX(0); }
  20% { transform: translateX(-10px); }
  40% { transform: translateX(10px); }
  60% { transform: translateX(-6px); }
  80% { transform: translateX(6px); }
}

/* Screen shake */
@keyframes screenShake {
  0%,100% { transform: translate(0,0); }
  10% { transform: translate(-4px,2px); }
  20% { transform: translate(4px,-2px); }
  30% { transform: translate(-3px,3px); }
  40% { transform: translate(3px,-1px); }
  50% { transform: translate(-2px,2px); }
  60% { transform: translate(2px,0); }
}
.screen-shake { animation: screenShake 0.4s ease; }

/* ========== OVERLAYS ========== */
.stress-change {
  position: absolute;
  right: clamp(8px,2vw,20px);
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.96);
  border-radius: 14px;
  padding: clamp(12px,2.5vw,16px) clamp(16px,3vw,22px);
  text-align: center;
  font-size: clamp(16px,3.5vw,24px);
  font-weight: 900;
  z-index: 100;
  border: 3px solid;
  display: none;
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
  animation: stressPopup 0.4s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes stressPopup {
  from { transform: translateY(-50%) scale(0) rotate(-5deg); }
  to { transform: translateY(-50%) scale(1) rotate(0); }
}

.streak-popup {
  position: absolute;
  top: 15%;
  left: 50%;
  transform: translateX(-50%) scale(0);
  background: linear-gradient(135deg, #c47800, #f0b429);
  border-radius: 12px;
  padding: clamp(8px,2vw,12px) clamp(16px,3vw,22px);
  text-align: center;
  font-size: clamp(13px,2.8vw,17px);
  font-weight: 900;
  color: #000;
  z-index: 110;
  display: none;
  box-shadow: 0 4px 22px rgba(240,180,41,0.65);
}
.streak-popup.show {
  display: block;
  animation: streakBounce 0.5s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes streakBounce {
  from { transform: translateX(-50%) scale(0) rotate(-10deg); }
  to { transform: translateX(-50%) scale(1) rotate(0); }
}

.achievement-popup {
  position: absolute;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: linear-gradient(135deg, #1a1a2e, #16213e);
  border: 2px solid #f0b429;
  border-radius: 12px;
  padding: 10px 18px;
  text-align: center;
  font-size: clamp(10px,2vw,12px);
  font-weight: 700;
  color: #f0b429;
  z-index: 110;
  display: none;
  box-shadow: 0 4px 20px rgba(0,0,0,0.5);
  white-space: nowrap;
}
.achievement-popup.show {
  display: block;
  animation: achievementSlide 0.4s cubic-bezier(0.34,1.56,0.64,1) forwards;
}
@keyframes achievementSlide {
  from { transform: translateX(-50%) translateY(80px); opacity: 0; }
  to { transform: translateX(-50%) translateY(0); opacity: 1; }
}

/* Particles */
.particle {
  position: absolute;
  pointer-events: none;
  animation: particleFloat 1s ease forwards;
  z-index: 150;
}
@keyframes particleFloat {
  from { transform: translate(0,0) scale(1); opacity: 1; }
  to { transform: translate(var(--tx),var(--ty)) scale(0.1); opacity: 0; }
}

/* ========== END SCREEN ========== */
#end-screen {
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  background: linear-gradient(160deg, #060300 0%, #140700 100%);
  position: relative;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
}

.end-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(8px,1.8vw,12px);
  padding: clamp(40px,8vw,60px) clamp(16px,3vw,30px) clamp(24px,4vw,36px);
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  position: relative;
  z-index: 10;
  min-height: 100%;
  justify-content: flex-start;
}

.confetti-container {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 1;
}
.confetti-piece {
  position: absolute;
  top: -20px;
  animation: confettiFall linear forwards;
}
@keyframes confettiFall {
  to { transform: translateY(110vh) rotate(720deg); opacity: 0; }
}

.end-title {
  font-size: clamp(26px,7vw,52px);
  font-weight: 900;
  text-shadow: 3px 3px 0 rgba(0,0,0,0.6);
  animation: endBounce 0.6s cubic-bezier(0.34,1.56,0.64,1);
  line-height: 1;
  text-align: center;
}
@keyframes endBounce {
  from { transform: scale(0.4) rotate(-5deg); opacity: 0; }
  to { transform: scale(1) rotate(0); opacity: 1; }
}

.end-grade {
  font-size: clamp(13px,2.8vw,18px);
  font-weight: 700;
  font-style: italic;
  text-align: center;
  opacity: 0.9;
  max-width: 400px;
}

.end-characters {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 16px;
}
.end-characters svg { width: clamp(100px,25vw,140px); height: auto; }

.end-speech {
  background: linear-gradient(135deg, #fefae8, #f5edd0);
  border: 2.5px solid #c8a84b;
  border-radius: 12px;
  padding: 10px 16px;
  font-size: clamp(11px,2.2vw,13px);
  font-weight: 700;
  color: #1a1000;
  max-width: 220px;
  text-align: center;
  box-shadow: 2px 3px 8px rgba(0,0,0,0.3);
}

.stats-panel {
  background: rgba(0,0,0,0.65);
  border: 1.5px solid rgba(255,140,0,0.2);
  border-radius: 14px;
  padding: clamp(12px,2.5vw,18px) clamp(16px,3.5vw,26px);
  width: 100%;
  max-width: 420px;
  box-shadow: inset 0 2px 10px rgba(0,0,0,0.3);
}

.stats-title {
  color: #f0d090;
  font-size: clamp(10px,2vw,12px);
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
  border-bottom: 1px solid rgba(255,140,0,0.15);
  padding-bottom: 8px;
  text-align: center;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
  margin-bottom: 12px;
}
@media (min-width: 380px) {
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
}

.stat-item { text-align: center; }
.stat-val {
  color: #f0b429;
  font-size: clamp(14px,3vw,20px);
  font-weight: 900;
}
.stat-lbl {
  color: #777;
  font-size: clamp(8px,1.5vw,10px);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-score-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: clamp(6px,1.2vw,8px) 0;
  border-top: 1px solid rgba(255,255,255,0.06);
  color: #aaa;
  font-size: clamp(11px,2.2vw,13px);
  font-weight: 600;
}
.stat-score-row span:last-child { color: #f0d090; font-weight: 800; }
.stat-score-row.highlight { color: #f0b429; }
.stat-score-row.highlight span:last-child { color: #ffd700; }

.achievements-panel {
  background: rgba(0,0,0,0.5);
  border: 1.5px solid rgba(240,180,41,0.25);
  border-radius: 12px;
  padding: clamp(10px,2vw,14px) clamp(14px,3vw,20px);
  width: 100%;
  max-width: 420px;
}
.achievements-title {
  color: #f0b429;
  font-size: clamp(9px,1.8vw,11px);
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.achievements-list { display: flex; flex-wrap: wrap; gap: 6px; }
.achievement-badge {
  background: rgba(240,180,41,0.12);
  border: 1px solid rgba(240,180,41,0.3);
  color: #f0b429;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: clamp(9px,1.8vw,11px);
  font-weight: 700;
}

.end-btns {
  display: flex;
  gap: clamp(8px,2vw,14px);
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
}
.end-btn {
  flex: 1;
  min-width: 120px;
  padding: clamp(12px,2vw,13px) clamp(20px,4vw,28px);
  border-radius: 10px;
  font-size: clamp(12px,2.5vw,15px);
  font-weight: 800;
  cursor: pointer;
  border: none;
  letter-spacing: 1px;
  text-transform: uppercase;
  box-shadow: 0 4px 14px rgba(0,0,0,0.3);
  transition: all 0.2s;
}
.btn-play-again { background: linear-gradient(135deg, #b87200, #f0b429); color: #000; }
.btn-share { background: linear-gradient(135deg, #1252a0, #2471a3); color: #fff; }
.end-btn:hover { transform: translateY(-2px); filter: brightness(1.1); }
.end-btn:active { transform: translateY(0); }

/* ========== CREDITS INLINE (end screen mobile) ========== */
.credits-inline {
  color: rgba(255,255,255,0.25);
  font-size: clamp(9px,1.8vw,11px);
  letter-spacing: 0.5px;
  text-align: center;
  white-space: nowrap;
  margin-top: 4px;
  padding-bottom: 8px;
}
@media (min-width: 900px) and (min-height: 600px) {
  .credits-inline { display: none; }
}