* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --accent: #f7c948;
  --bg-dark: #0d0d1a;
  --text: #f0f0ff;
  --card-bg: rgba(255,255,255,0.07);
  --card-border: rgba(255,255,255,0.15);
  --input-bg: rgba(255,255,255,0.1);
  --btn-primary: #f7c948;
  --btn-primary-text: #0d0d1a;
  --btn-secondary: rgba(255,255,255,0.15);
}

html, body {
  width: 100%;
  height: 100%;
  background: var(--bg-dark);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  overflow: hidden;
  user-select: none;
}

/* ===== SCREENS ===== */
.screen {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
}
.screen.active {
  display: flex;
}

/* ===== ONBOARDING ===== */
#screen-onboarding {
  background: radial-gradient(ellipse at 50% 30%, #1a1a4e 0%, #0d0d1a 70%);
  overflow-y: auto;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 20px;
  flex-direction: column;
}

.game-footer {
  width: min(520px, 100%);
  margin: 16px auto 8px;
  text-align: center;
  font-size: 0.78rem;
  color: rgba(240, 240, 255, 0.45);
  letter-spacing: 0.01em;
}

.onboarding-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 40px;
  width: min(520px, 100%);
  margin: auto;
  backdrop-filter: blur(20px);
}

/* Language switcher */
.lang-switcher {
  display: flex;
  justify-content: flex-end;
  gap: 6px;
  margin-bottom: 16px;
}
.lang-btn {
  padding: 4px 12px;
  border-radius: 8px;
  border: 1px solid var(--card-border);
  background: transparent;
  color: rgba(255,255,255,0.45);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}
.lang-btn:hover { color: rgba(255,255,255,0.8); border-color: rgba(255,255,255,0.35); }
.lang-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(247,201,72,0.1);
}

.game-title {
  font-size: 2.6rem;
  font-weight: 900;
  text-align: center;
  margin-bottom: 32px;
  line-height: 1.1;
  letter-spacing: -1px;
}
.title-accent {
  color: var(--accent);
}

.form-group {
  margin-bottom: 24px;
}
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-bottom: 8px;
}

input[type="text"],
input[type="number"] {
  background: var(--input-bg);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  color: var(--text);
  font-size: 1rem;
  padding: 10px 14px;
  width: 100%;
  outline: none;
  transition: border-color 0.2s;
}
input[type="text"]:focus,
input[type="number"]:focus {
  border-color: var(--accent);
}
input.field-error {
  border-color: #ff4757;
  box-shadow: 0 0 10px rgba(255,71,87,0.4);
  animation: shake 0.4s ease;
}
input[type="number"] {
  -moz-appearance: textfield;
}
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
  opacity: 1;
}

/* Theme cards */
.theme-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: 12px;
}
.theme-card {
  border: 2px solid var(--card-border);
  border-radius: 14px;
  padding: 12px 8px 10px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, transform 0.2s;
  font-size: 0.9rem;
  font-weight: 600;
}
.theme-card:hover {
  border-color: rgba(255,255,255,0.4);
  transform: translateY(-2px);
}
.theme-card.active {
  border-color: var(--accent);
  background: rgba(247,201,72,0.1);
}
.theme-preview {
  width: 100%;
  height: 60px;
  border-radius: 8px;
  margin-bottom: 8px;
}
.space-preview {
  background: radial-gradient(ellipse, #2a0a4e 0%, #050520 100%);
}
.ocean-preview {
  background: linear-gradient(to bottom, #003566 0%, #00b4d8 100%);
}
.sky-preview {
  background: linear-gradient(to bottom, #74c0fc 0%, #a9d8ff 100%);
}
.cats-preview {
  background: linear-gradient(to bottom, #ffecd2 0%, #fcb69f 60%, #8b5e3c 100%);
}

.setting-note {
  display: block;
  font-size: 0.78rem;
  color: rgba(255,255,255,0.4);
  margin-top: 5px;
}

/* Tables tab switcher */
.tables-tabs {
  display: flex;
  gap: 0;
  margin-bottom: 14px;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  overflow: hidden;
}
.tables-tab {
  flex: 1;
  padding: 9px;
  border: none;
  background: transparent;
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.tables-tab:first-child { border-right: 1px solid var(--card-border); }
.tables-tab.active {
  background: rgba(247,201,72,0.15);
  color: var(--accent);
}

/* Range display */
.range-values {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 8px;
}
.range-values strong {
  color: #fff;
  font-size: 1.1rem;
}

/* Range sliders */
.range-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.range-slider {
  width: 100%;
  -webkit-appearance: none;
  height: 6px;
  border-radius: 3px;
  background: rgba(255,255,255,0.2);
  outline: none;
}
.range-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 0 8px rgba(247,201,72,0.5);
}
.range-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border: none;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}

/* Tick marks under sliders */
.range-ticks {
  display: flex;
  justify-content: space-between;
  padding: 0 2px;
  font-size: 0.7rem;
  color: rgba(255,255,255,0.3);
  margin-top: 2px;
}

/* Single-table number grid */
.table-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
}
.table-num-btn {
  padding: 10px 0;
  border-radius: 10px;
  border: 2px solid var(--card-border);
  background: transparent;
  color: rgba(255,255,255,0.7);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
}
.table-num-btn:hover {
  border-color: rgba(255,255,255,0.4);
  color: #fff;
}
.table-num-btn.active {
  border-color: var(--accent);
  background: rgba(247,201,72,0.18);
  color: var(--accent);
}
.numberblocks-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  padding: 6px 14px;
  border-radius: 20px;
  background: rgba(255,0,0,0.12);
  border: 1px solid rgba(255,80,80,0.35);
  color: #ff6b6b;
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s;
}
.numberblocks-link:hover {
  background: rgba(255,0,0,0.22);
  border-color: rgba(255,80,80,0.6);
}
.numberblocks-link.hidden { display: none; }

/* Mode buttons */
.mode-btns {
  display: flex;
  gap: 10px;
  margin-bottom: 6px;
}
.mode-btn {
  flex: 1;
  min-width: 0;
  padding: 10px 6px;
  font-size: clamp(0.78rem, 3.5vw, 0.9rem);
  white-space: normal;
  text-align: center;
  border-radius: 10px;
  border: 2px solid var(--card-border);
  background: transparent;
  color: var(--text);
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.mode-btn:hover { border-color: rgba(255,255,255,0.4); }
.mode-btn.active {
  border-color: var(--accent);
  background: rgba(247,201,72,0.15);
  color: var(--accent);
}

/* Hold-to-record trigger word button */
.trigger-record-btn {
  padding: 4px 10px;
  border-radius: 6px;
  border: 1px solid #555;
  background: #3a3a3a;
  color: #fff;
  font-size: 0.85rem;
  cursor: pointer;
  user-select: none;
  touch-action: none;
  transition: background 0.15s, border-color 0.15s;
}
.trigger-record-btn:hover { border-color: rgba(255,255,255,0.4); }
.trigger-record-btn.recording {
  background: #8b1a1a;
  border-color: #e74c3c;
  animation: rec-pulse 0.8s ease-in-out infinite;
}
@keyframes rec-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.7; }
}

/* Operation buttons */
.operation-btns {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.op-btn {
  flex: 1;
  min-width: 0;
  padding: 10px 6px;
  border-radius: 10px;
  border: 2px solid var(--card-border);
  background: transparent;
  color: var(--text);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  white-space: nowrap;
}
.op-btn:hover {
  border-color: rgba(255,255,255,0.4);
}
.op-btn.active {
  border-color: var(--accent);
  background: rgba(247,201,72,0.15);
  color: var(--accent);
}

/* Number range buttons (Phase 5) */
.numrange-btns { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.numrange-btn {
  flex: 1;
  min-width: 0;
  padding: 10px 6px;
  border-radius: 10px;
  border: 2px solid var(--card-border);
  background: transparent;
  color: var(--text);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
@media (max-width: 400px) {
  .numrange-btn { font-size: 0.72rem; padding: 10px 4px; }
}
.numrange-btn:hover {
  border-color: rgba(255,255,255,0.4);
}
.numrange-btn.active {
  border-color: var(--accent);
  background: rgba(247,201,72,0.15);
  color: var(--accent);
}

/* Difficulty buttons */
.difficulty-btns {
  display: flex;
  gap: 10px;
}
.diff-btn {
  flex: 1;
  min-width: 0;
  padding: 10px 6px;
  font-size: clamp(0.78rem, 3.5vw, 0.9rem);
  white-space: nowrap;
  border-radius: 10px;
  border: 2px solid var(--card-border);
  background: transparent;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.diff-btn:hover {
  border-color: rgba(255,255,255,0.4);
}
.diff-btn.active {
  border-color: var(--accent);
  background: rgba(247,201,72,0.15);
  color: var(--accent);
}

/* Primary button */
.btn-primary {
  width: 100%;
  padding: 14px;
  border-radius: 12px;
  border: none;
  background: var(--btn-primary);
  color: var(--btn-primary-text);
  font-size: 1.1rem;
  font-weight: 800;
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(247,201,72,0.35);
}
.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  padding: 12px 24px;
  border-radius: 12px;
  border: 2px solid var(--card-border);
  background: var(--btn-secondary);
  color: var(--text);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.2s;
}
.btn-secondary:hover {
  border-color: rgba(255,255,255,0.5);
}

.home-btns {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.home-btns .btn-secondary {
  flex: 1;
  min-width: 0;
  font-size: 0.82rem;
  padding: 10px 8px;
}

/* Streak banner on game-over */
.streak-banner {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  text-align: center;
  margin: 6px 0;
}

/* Challenge banner on onboarding */
.challenge-banner {
  background: rgba(99, 149, 255, 0.15);
  border: 1px solid rgba(99, 149, 255, 0.4);
  color: #c8d8ff;
  border-radius: 10px;
  padding: 10px 16px;
  margin-bottom: 10px;
  font-size: 0.9rem;
  text-align: center;
}

/* Challenge comparison on game-over */
.challenge-compare {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 10px 14px;
  margin: 8px 0;
  font-size: 0.9rem;
  text-align: center;
}
.challenge-result {
  font-weight: 700;
  color: var(--accent);
  margin-top: 6px;
  font-size: 1rem;
}
@media (max-width: 480px) {
  .home-btns {
    flex-direction: column;
  }
}

/* ===== GAME SCREEN ===== */
#screen-game {
  background: #000;
}

#game-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* Miss flash notifications */
#miss-flash-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  pointer-events: none;
  z-index: 30;
}

@keyframes missFlash {
  0%   { opacity: 0; transform: scale(1.25); }
  12%  { opacity: 1; transform: scale(1); }
  65%  { opacity: 1; }
  100% { opacity: 0; transform: scale(0.9); }
}

/* Extended tables unlock badge (onboarding) */
#extended-tables-badge {
  margin-top: 8px;
  padding: 6px 12px;
  background: linear-gradient(135deg, rgba(46,213,115,0.18), rgba(247,201,72,0.18));
  border: 1px solid rgba(46,213,115,0.45);
  border-radius: 8px;
  color: #2ed573;
  font-size: 0.85rem;
  font-weight: 700;
  text-align: center;
  animation: pulse 1.5s ease-in-out infinite alternate;
}

/* Mastery grid (game-over screen) */
.mastery-win-banner {
  font-size: 1.3rem;
  font-weight: 900;
  color: #f7c948;
  text-align: center;
  margin: 8px 0 4px;
  text-shadow: 0 0 12px rgba(247,201,72,0.6);
  animation: pulse 1s ease-in-out infinite alternate;
}
.mastery-heading {
  font-size: 1rem;
  font-weight: 700;
  color: rgba(255,255,255,0.85);
  margin: 12px 0 4px;
}
.mastery-pct {
  font-size: 1.5rem;
  font-weight: 900;
  color: #2ed573;
  margin-bottom: 6px;
}
.mastery-subtitle {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.55);
  margin: 0 0 6px;
}
.mastery-grid { margin: 8px 0; }
.mastery-row {
  display: flex;
  align-items: center;
  gap: 3px;
  margin-bottom: 3px;
}
.mastery-label {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.45);
  width: 22px;
  text-align: right;
  margin-right: 4px;
  flex-shrink: 0;
}
.mastery-dot {
  width: 13px;
  height: 13px;
  border-radius: 3px;
  flex-shrink: 0;
}
.mastery-dot.mastered { background: #2ed573; }
.mastery-dot.good     { background: #f7c948; }
.mastery-dot.fair     { background: #ffa502; }
.mastery-dot.weak     { background: #ff4757; }
.mastery-dot.unseen   { background: rgba(255,255,255,0.15); }
.mastery-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
  font-size: 0.65rem;
  color: rgba(255,255,255,0.6);
}
.mastery-legend-item {
  display: flex;
  align-items: center;
  gap: 4px;
}
.mastery-legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  flex-shrink: 0;
}

.miss-flash {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(10, 10, 30, 0.82);
  border: 2px solid rgba(255, 80, 80, 0.7);
  border-radius: 16px;
  padding: 10px 22px;
  animation: missFlash 2.4s ease forwards;
  white-space: nowrap;
}

.miss-flash.saved-flash {
  border-color: rgba(46, 213, 115, 0.7);
  animation-duration: 1.2s;
}

.miss-flash-eq {
  font-size: 1.6rem;
  font-weight: 800;
  color: #ff7070;
  letter-spacing: 0.02em;
}

.miss-flash-arrow {
  font-size: 1.2rem;
  color: rgba(255,255,255,0.4);
}

.miss-flash-ans {
  font-size: 1.6rem;
  font-weight: 900;
  color: #f7c948;
}

/* HUD Overlay */
#hud-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding: 12px 16px;
  pointer-events: none;
  z-index: 10;
}

#hud-left, #hud-center, #hud-right {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
#hud-center { align-items: center; }
#hud-right { align-items: flex-end; }

#hud-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
}
#hud-score {
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  text-shadow: 0 0 10px rgba(247,201,72,0.6);
}
#hud-level {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
}
#hud-tables {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
}
#hud-lives {
  display: flex;
  gap: 6px;
  font-size: 1.5rem;
}

/* Run-mode ante chip in HUD center */
.run-ante-chip {
  font-size: 0.75rem;
  font-weight: 700;
  color: #a29bfe;
  background: rgba(162,155,254,0.18);
  border: 1px solid rgba(162,155,254,0.45);
  border-radius: 20px;
  padding: 2px 10px;
  letter-spacing: 0.03em;
  pointer-events: none;
}
.run-ante-chip.hidden { display: none; }

/* Active upgrades bar — bottom-left of game screen, horizontal row */
#active-upgrades-bar {
  position: absolute;
  left: 8px;
  top: 80px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  z-index: 10;
  pointer-events: none;
  max-height: calc(100vh - 200px);
  overflow: hidden;
}
#active-upgrades-bar.hidden { display: none; }

/* Individual upgrade pill */
.upg-pill {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  background: rgba(0,0,0,0.55);
  border: 1px solid rgba(162,155,254,0.4);
  border-radius: 10px;
  padding: 5px 6px 4px;
  min-width: 54px;
  max-width: 60px;
  text-align: center;
  transition: border-color 0.3s, background 0.3s, opacity 0.3s;
}
.upg-pill.upg-spent {
  opacity: 0.35;
  border-color: rgba(255,255,255,0.15);
}
.upg-pill.upg-ready {
  border-color: #f7c948;
  background: rgba(247,201,72,0.1);
}
.upg-pill.upg-active {
  border-color: #74b9ff;
  background: rgba(116,185,255,0.15);
  animation: upg-pulse 0.8s ease-in-out infinite alternate;
}
/* Synergy pair — gold glow */
.upg-pill.upg-synergy {
  border-color: #f7c948;
  background: rgba(247,201,72,0.12);
  box-shadow: 0 0 6px rgba(247,201,72,0.45);
}
/* Conflict pair — orange glow */
.upg-pill.upg-conflict {
  border-color: #fd79a8;
  background: rgba(253,121,168,0.1);
  box-shadow: 0 0 6px rgba(253,121,168,0.4);
}
@keyframes upg-pulse {
  from { box-shadow: 0 0 4px rgba(116,185,255,0.3); }
  to   { box-shadow: 0 0 10px rgba(116,185,255,0.7); }
}
.upg-icon {
  font-size: 1.2rem;
  line-height: 1;
}
.upg-label {
  font-size: 0.6rem;
  font-weight: 600;
  color: rgba(255,255,255,0.75);
  line-height: 1.1;
  word-break: break-word;
  max-width: 54px;
}
.upg-count {
  font-size: 0.7rem;
  font-weight: 800;
  color: #f7c948;
  line-height: 1;
}
/* Shrinking timer bar inside the streakSlow pill */
.upg-timer-bar {
  width: 100%;
  height: 3px;
  background: rgba(255,255,255,0.15);
  border-radius: 2px;
  margin-top: 2px;
  overflow: hidden;
}
.upg-timer-fill {
  height: 100%;
  background: #74b9ff;
  border-radius: 2px;
  transition: width 0.25s linear;
}

/* Level-up banner */
#level-up-banner {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 3rem;
  font-weight: 900;
  color: var(--accent);
  text-shadow: 0 0 40px rgba(247,201,72,0.9), 0 0 80px rgba(247,201,72,0.5);
  pointer-events: none;
  opacity: 0;
  z-index: 30;
  white-space: nowrap;
  letter-spacing: 0.04em;
}
#level-up-banner.show {
  animation: levelUpPop 1.6s ease forwards;
}
@keyframes levelUpPop {
  0%   { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
  20%  { opacity: 1; transform: translate(-50%, -50%) scale(1.15); }
  40%  { transform: translate(-50%, -50%) scale(1); }
  70%  { opacity: 1; }
  100% { opacity: 0; transform: translate(-50%, -60%) scale(1); }
}

/* Voice suggestion pill */
.voice-suggestion {
  position: relative;
  overflow: hidden;
  width: 100%;
  background: rgba(0, 180, 255, 0.12);
  border: 2px solid rgba(0, 180, 255, 0.45);
  border-radius: 18px;
  padding: 10px 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  animation: voicePillIn 0.18s ease-out;
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
  -webkit-tap-highlight-color: transparent;
}
.voice-suggestion.countdown::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  width: 100%;
  background: rgba(0, 220, 255, 0.9);
  animation: countdownBar var(--countdown-duration, 1.5s) linear forwards;
}
@keyframes countdownBar {
  from { width: 100%; }
  to   { width: 0; }
}
.voice-suggestion:active {
  transform: scale(0.97);
}
.voice-suggestion.hidden {
  display: none;
}
.voice-suggestion.interim {
  opacity: 0.55;
  border-color: rgba(255,255,255,0.2);
  animation: none;
}
.voice-suggestion.confirmed {
  border-color: rgba(0, 220, 255, 0.75);
  box-shadow: 0 0 18px rgba(0, 220, 255, 0.3);
}
.voice-suggestion-num {
  font-size: 2.2rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: 0.02em;
  line-height: 1;
}
.voice-suggestion-label {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.45);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  line-height: 1;
}
@keyframes voicePillIn {
  from { opacity: 0; transform: scale(0.88) translateY(6px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

/* Answer area */
#answer-area {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 10;
  width: min(400px, 90vw);
}

#combo-display {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--accent);
  text-shadow: 0 0 20px rgba(247,201,72,0.8);
  min-height: 2rem;
  transition: opacity 0.3s;
  text-align: center;
}

#input-wrapper {
  display: flex;
  width: 100%;
  gap: 8px;
}

#answer-input {
  flex: 1;
  background: rgba(0,0,0,0.6);
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 12px;
  color: #fff;
  font-size: 1.4rem;
  font-weight: 700;
  padding: 10px 16px;
  text-align: center;
  outline: none;
  -moz-appearance: textfield;
  transition: border-color 0.2s, box-shadow 0.2s;
}
#answer-input::-webkit-inner-spin-button,
#answer-input::-webkit-outer-spin-button { display: none; }
#answer-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 16px rgba(247,201,72,0.3);
}
#answer-input.shake {
  animation: shake 0.4s ease;
  border-color: #ff4757;
  box-shadow: 0 0 12px rgba(255,71,87,0.5);
}
#answer-input.wrong {
  border-color: #ff4757;
}

@keyframes shake {
  0%,100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-5px); }
  80% { transform: translateX(5px); }
}

#btn-mic {
  padding: 10px 14px;
  border-radius: 12px;
  border: 2px solid rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.5);
  font-size: 1.1rem;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, color 0.2s;
  flex-shrink: 0;
}
/* State 1 – listening: mic open, waiting for speech (slow red pulse) */
#btn-mic.listening {
  border-color: #ff4757;
  background: rgba(255,71,87,0.15);
  color: #ff4757;
  animation: micPulse 1.4s ease-in-out infinite;
}
/* State 2 – speaking: engine detected speech (fast green pulse) */
#btn-mic.speaking {
  border-color: #2ed573 !important;
  background: rgba(46,213,115,0.2) !important;
  color: #2ed573 !important;
  animation: micSpeak 0.55s ease-in-out infinite !important;
}
/* State 3 – processing: speech ended, waiting for cloud result (blue sweep) */
#btn-mic.processing {
  border-color: #1e90ff !important;
  background: rgba(30,144,255,0.15) !important;
  color: #1e90ff !important;
  animation: micProcess 0.9s linear infinite !important;
}
/* Overlay: ambient sound is being picked up */
#btn-mic.sound-detected {
  border-color: #ffd32a !important;
  color: #ffd32a !important;
  background: rgba(255,211,42,0.18) !important;
  animation: micBlip 0.3s ease-in-out infinite !important;
}
#btn-mic.denied {
  opacity: 0.35;
  cursor: not-allowed;
}
/* Typing mode: user switched to keyboard, voice suppressed */
#btn-mic.typing {
  border-color: rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.04);
  color: rgba(255,255,255,0.25);
  animation: none;
  cursor: pointer;
}
/* Lifted above the pause overlay so it stays interactive while paused */
#btn-mic.above-overlay {
  position: relative;
  z-index: 60;
}
@keyframes micPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,71,87,0.35); }
  50%       { box-shadow: 0 0 0 8px rgba(255,71,87,0); }
}
@keyframes micSpeak {
  0%, 100% { box-shadow: 0 0 0 0 rgba(46,213,115,0.6); transform: scale(1); }
  50%       { box-shadow: 0 0 0 12px rgba(46,213,115,0); transform: scale(1.12); }
}
@keyframes micProcess {
  0%   { box-shadow: 0 0 0 0 rgba(30,144,255,0.7); }
  100% { box-shadow: 0 0 0 14px rgba(30,144,255,0); }
}
@keyframes micBlip {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,211,42,0.6); transform: scale(1); }
  50%       { box-shadow: 0 0 0 10px rgba(255,211,42,0); transform: scale(1.08); }
}

#btn-fire {
  padding: 10px 20px;
  border-radius: 12px;
  border: none;
  background: var(--accent);
  color: #0d0d1a;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
  transition: transform 0.1s;
}
#btn-fire:active {
  transform: scale(0.95);
}

/* Help / SOS button */
#btn-help {
  padding: 10px 14px;
  border-radius: 12px;
  border: 2px solid rgba(247,201,72,0.5);
  background: rgba(247,201,72,0.12);
  color: #f7c948;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.1s, background 0.2s, border-color 0.2s;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}
#btn-help:not(:disabled):hover {
  background: rgba(247,201,72,0.22);
  border-color: #f7c948;
}
#btn-help:not(:disabled):active {
  transform: scale(0.95);
}
/* Cooldown state — sweep fill from left */
#btn-help.help-cooldown {
  color: rgba(247,201,72,0.45);
  border-color: rgba(247,201,72,0.2);
  cursor: not-allowed;
}
#btn-help.help-cooldown::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(247,201,72,0.15);
  transform-origin: left center;
  clip-path: inset(0 calc(100% - var(--help-progress, 0%)) 0 0);
  pointer-events: none;
}

#try-again-msg {
  min-height: 1.6rem;
  text-align: center;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.15s ease, transform 0.15s ease;
}
#try-again-msg.visible {
  opacity: 1;
  transform: translateY(0);
}
.try-again-eq {
  font-size: 1.15rem;
  font-weight: 700;
  color: #ff4757;
  text-shadow: 0 0 12px rgba(255,71,87,0.5);
  letter-spacing: 0.03em;
}
.try-again-eq strong {
  color: #f7c948;
  text-shadow: 0 0 12px rgba(247,201,72,0.6);
}


/* Mute + Pause buttons in HUD */
#btn-mute, #btn-pause {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 8px;
  color: rgba(255,255,255,0.7);
  font-size: 1rem;
  padding: 4px 10px;
  cursor: pointer;
  pointer-events: all;
  margin-top: 4px;
  transition: background 0.15s;
}
#btn-mute:hover, #btn-pause:hover { background: rgba(255,255,255,0.2); }
#btn-mute.muted { color: rgba(255,255,255,0.35); }

/* Boss Victory overlay */
#boss-victory-overlay {
  display: none;
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  z-index: 55;
}
#boss-victory-overlay.visible { display: flex; }
.boss-victory-card {
  background: rgba(13,13,26,0.97);
  border: 2px solid var(--accent);
  border-radius: 20px;
  padding: 40px 50px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 16px;
  animation: victoryPop 0.35s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes victoryPop {
  from { transform: scale(0.7); opacity: 0; }
  to   { transform: scale(1);   opacity: 1; }
}
.boss-victory-title {
  font-size: 2.2rem;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: 0.04em;
}
#boss-victory-stars {
  font-size: 1.8rem;
  letter-spacing: 0.1em;
}
#boss-victory-sub {
  font-size: 1rem;
  color: rgba(255,255,255,0.6);
}
.boss-victory-btns {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 8px;
}

/* Pause overlay */
#pause-overlay {
  display: none;
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(6px);
  align-items: center;
  justify-content: center;
  z-index: 50;
}
#pause-overlay.visible { display: flex; }
.pause-card {
  background: rgba(13,13,26,0.95);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 40px 60px;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.pause-title {
  font-size: 2.4rem;
  font-weight: 900;
  color: var(--accent);
  letter-spacing: 0.05em;
}

/* ===== OVERLAY CARDS (game-over, leaderboard) ===== */
#screen-gameover,
#screen-leaderboard {
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
}

/* Allow long overlay screens to scroll on mobile */
#screen-gameover,
#screen-leaderboard,
#screen-dashboard,
#screen-achievements {
  overflow-y: auto;
  align-items: flex-start;
  padding: 20px;
}

.overlay-card {
  background: rgba(13,13,26,0.95);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 40px;
  width: min(480px, 94vw);
  text-align: center;
  margin: auto;
  flex-shrink: 0;
}
.overlay-card.wide {
  width: min(700px, 94vw);
}
.overlay-card h2 {
  font-size: 2rem;
  font-weight: 900;
  margin-bottom: 24px;
  color: var(--accent);
}

#gameover-stats {
  font-size: 1rem;
  line-height: 2;
  margin-bottom: 16px;
  color: rgba(255,255,255,0.85);
}
#gameover-missed {
  background: rgba(255,71,87,0.1);
  border: 1px solid rgba(255,71,87,0.3);
  border-radius: 12px;
  padding: 12px 16px;
  margin-bottom: 24px;
  font-size: 0.95rem;
  color: #ff6b7a;
  min-height: 40px;
}

/* Stars per level on game over */
.stars-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-top: 8px;
}
.level-star-badge {
  font-size: 0.78rem;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  padding: 3px 8px;
  color: var(--accent);
  white-space: nowrap;
}

.overlay-btns {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
  margin-top: 16px;
}
.overlay-btn-row {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}
.overlay-btns .btn-primary {
  width: auto;
  padding: 12px 32px;
}

/* Leaderboard table */
#leaderboard-badge {
  min-height: 32px;
  margin-bottom: 12px;
  font-size: 0.95rem;
  font-weight: 700;
  color: #2ed573;
}

#leaderboard-table-wrap {
  overflow-x: auto;
  margin-bottom: 12px;
}

#leaderboard-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}
#leaderboard-table th,
#leaderboard-table td {
  padding: 10px 12px;
  text-align: center;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
#leaderboard-table th {
  color: rgba(255,255,255,0.5);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}
#leaderboard-table tr.best-row td {
  color: var(--accent);
  font-weight: 700;
}
#leaderboard-table tr:hover td {
  background: rgba(255,255,255,0.04);
}

/* Achievements */
#achievements-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  text-align: left;
}
#achievements-table td {
  padding: 10px 8px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  vertical-align: middle;
}
#achievements-table td:first-child { font-size: 1.3rem; width: 36px; }
#achievements-table td:last-child { text-align: right; font-size: 0.78rem; color: rgba(255,255,255,0.45); }
tr.ach-unlocked td { color: var(--accent); }
tr.ach-locked td { color: rgba(255,255,255,0.3); }
tr.ach-locked td strong { color: rgba(255,255,255,0.4); }

#gameover-achievements {
  margin: 12px 0;
}
.ach-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 8px;
}
.ach-badge {
  background: rgba(247,201,72,0.1);
  border: 1px solid rgba(247,201,72,0.3);
  border-radius: 8px;
  padding: 6px 12px;
  margin-bottom: 6px;
  font-size: 0.88rem;
  color: var(--accent);
}
.ach-badge--milestone {
  background: linear-gradient(135deg, rgba(255,215,0,0.2), rgba(255,165,0,0.15));
  border: 2px solid gold;
  border-radius: 10px;
  padding: 10px 16px;
  margin-bottom: 8px;
  font-size: 1rem;
  color: gold;
  text-align: center;
  box-shadow: 0 0 12px rgba(255,215,0,0.3);
}

/* ---- Mastery band view (add/subtract large ranges) ---- */
.mastery-bands {
  width: 100%;
  margin: 8px 0;
}
.mastery-band-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 5px;
  font-size: 0.82rem;
}
.mastery-band-label {
  width: 56px;
  text-align: right;
  color: rgba(255,255,255,0.7);
  flex-shrink: 0;
}
.mastery-band-track {
  flex: 1;
  height: 12px;
  background: rgba(255,255,255,0.08);
  border-radius: 6px;
  overflow: hidden;
}
.mastery-band-bar {
  height: 100%;
  border-radius: 6px;
  transition: width 0.4s ease;
  min-width: 2px;
}
.band-bar--high  { background: #4caf50; }
.band-bar--mid   { background: #f7c948; }
.band-bar--low   { background: #e57373; }
.mastery-band-pct   { width: 32px; text-align: right; color: rgba(255,255,255,0.8); flex-shrink: 0; }
.mastery-band-count { color: rgba(255,255,255,0.4); flex-shrink: 0; }
.mastery-band-legend {
  display: flex;
  gap: 12px;
  font-size: 0.76rem;
  color: rgba(255,255,255,0.6);
  margin-top: 4px;
  flex-wrap: wrap;
  justify-content: center;
}
.band-swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  border-radius: 3px;
  vertical-align: middle;
  margin-right: 2px;
}
.mastery-bands-empty {
  color: rgba(255,255,255,0.4);
  font-size: 0.85rem;
  text-align: center;
  padding: 8px 0;
}

/* Parent Dashboard */
.dash-player {
  font-size: 1rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 16px;
}
.dash-stats {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 20px;
}
.dash-stat {
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.5);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.dash-stat span {
  display: block;
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 4px;
}
#dashboard-chart-wrap {
  overflow-x: auto;
  margin-bottom: 16px;
}
#dashboard-chart {
  display: block;
  margin: 0 auto;
}
#dashboard-table-detail {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}
.dash-weak-title {
  width: 100%;
  font-size: 0.85rem;
  font-weight: 700;
  color: rgba(255,255,255,0.5);
  margin-bottom: 4px;
}
.dash-weak-badge {
  background: rgba(255,71,87,0.15);
  border: 1px solid rgba(255,71,87,0.3);
  border-radius: 8px;
  padding: 4px 10px;
  font-size: 0.82rem;
  color: #ff6b7a;
}

/* Op tabs */
.dash-op-tabs {
  display: flex;
  gap: 6px;
  justify-content: center;
  margin-bottom: 20px;
}
.dash-op-tab {
  padding: 6px 20px;
  border-radius: 10px;
  border: 1px solid var(--card-border);
  background: transparent;
  color: rgba(255,255,255,0.5);
  font-size: 1.3rem;
  font-weight: 700;
  cursor: pointer;
  transition: color .15s, border-color .15s, background .15s;
}
.dash-op-tab.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(247,201,72,0.1);
}
.dash-op-tab:hover:not(.active) {
  color: rgba(255,255,255,0.8);
  border-color: rgba(255,255,255,0.3);
}

/* Op content panel */
.dash-op-panel {
  margin-bottom: 24px;
}
.dash-op-summary {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.dash-op-stat {
  text-align: center;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.5);
}
.dash-op-stat span {
  display: block;
  font-size: 1.4rem;
  font-weight: 900;
  color: #fff;
  margin-bottom: 2px;
}

/* 10×10 matrix */
.dash-matrix {
  display: grid;
  grid-template-columns: 28px repeat(10, 1fr);
  gap: 3px;
  margin-bottom: 16px;
  font-size: 0.7rem;
  overflow-x: auto;
}
.dash-matrix-header {
  display: contents;
}
.dash-matrix-header-cell {
  text-align: center;
  color: rgba(255,255,255,0.35);
  font-weight: 700;
  padding: 2px 0;
  font-size: 0.65rem;
}
.dash-matrix-row {
  display: contents;
}
.dash-matrix-label {
  text-align: right;
  color: rgba(255,255,255,0.35);
  font-weight: 700;
  padding-right: 4px;
  line-height: 26px;
  font-size: 0.65rem;
}
.dash-matrix-cell {
  height: 26px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  will-change: filter;
  justify-content: center;
  font-size: 0.65rem;
  font-weight: 600;
  color: rgba(255,255,255,0.7);
  cursor: default;
  transition: filter .1s;
}
.dash-matrix-cell:hover { filter: brightness(1.4); }
.dash-matrix-cell.unseen  { background: rgba(255,255,255,0.05); color: rgba(255,255,255,0.2); }
.dash-matrix-cell.started { background: rgba(255,140,0,0.4); }
.dash-matrix-cell.learning{ background: rgba(255,200,0,0.45); }
.dash-matrix-cell.good    { background: rgba(100,220,100,0.45); }
.dash-matrix-cell.mastered{ background: rgba(46,213,115,0.65); color: #fff; }

/* Matrix legend */
.dash-matrix-legend {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 16px;
  font-size: 0.7rem;
  color: rgba(255,255,255,0.5);
}
.dash-legend-dot {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 3px;
  margin-right: 3px;
  vertical-align: middle;
}

/* Add/sub bar chart canvas */
.dash-bar-canvas {
  display: block;
  margin: 0 auto 16px;
}

/* Weakest facts */
.dash-weak-section {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-bottom: 12px;
}

/* Trend chart label */
.dash-trend-label {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
  text-align: center;
  margin-bottom: 6px;
}

@media (max-width: 480px) {
  .dash-matrix { gap: 2px; font-size: 0.6rem; }
  .dash-matrix-cell { height: 22px; font-size: 0.58rem; }
}

/* Help / How to Play collapsible */
.help-section {
  margin-bottom: 20px;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  overflow: hidden;
}
.help-section summary {
  padding: 10px 16px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.75);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
  user-select: none;
}
.help-section summary::-webkit-details-marker { display: none; }
.help-section[open] summary {
  border-bottom: 1px solid var(--card-border);
  color: var(--accent);
}
.help-body {
  padding: 14px 16px;
  font-size: 0.83rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.6;
}
.help-body p { margin-bottom: 8px; }
.help-body ul { padding-left: 18px; margin-bottom: 6px; }
.help-body li { margin-bottom: 4px; }
.help-body strong { color: rgba(255,255,255,0.9); }
.help-subhead {
  font-weight: 700;
  color: rgba(255,255,255,0.85) !important;
  margin-top: 10px !important;
}

/* Icon button group (gear + help) */
.icon-btn-group {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

/* Settings gear button */
.settings-gear-btn {
  padding: 4px 10px;
  border-radius: 8px;
  border: 1px solid var(--card-border);
  background: transparent;
  color: rgba(255,255,255,0.55);
  font-size: 1rem;
  cursor: pointer;
  transition: color .15s, border-color .15s, background .15s;
}
.settings-gear-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(247,201,72,0.08);
}

/* Settings modal overlay */
.settings-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(6px);
  z-index: 200;
  align-items: flex-start;
  justify-content: center;
  padding: 20px;
  overflow-y: auto;
}
.settings-overlay.open { display: flex; }

/* Settings card */
.settings-card {
  background: rgba(13,13,26,0.97);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 32px 40px;
  width: min(520px, 100%);
  margin: auto;
  flex-shrink: 0;
}

.settings-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
}
.settings-header h2 {
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--accent);
  margin: 0;
}
.settings-close-btn {
  padding: 6px 12px;
  border-radius: 10px;
  border: 1px solid var(--card-border);
  background: transparent;
  color: rgba(255,255,255,0.6);
  font-size: 1rem;
  cursor: pointer;
}
.settings-close-btn:hover { color: #fff; border-color: rgba(255,255,255,0.5); }

.settings-section {
  margin-bottom: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--card-border);
}
.settings-section:last-child { border-bottom: none; margin-bottom: 0; }
.settings-section-title {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.4);
  margin-bottom: 16px;
}

/* Profile switcher */
.profile-switcher-row { margin-top: 4px; }
.profile-switcher-controls {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-top: 6px;
  flex-wrap: wrap;
}
.profile-select {
  flex: 1;
  min-width: 0;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--card-border);
  background: rgba(255,255,255,0.06);
  color: #fff;
  font-size: 0.9rem;
  cursor: pointer;
  appearance: auto;
}
.profile-select:focus { outline: 2px solid var(--accent); outline-offset: 2px; }
.profile-select option { background: #1a1a2e; color: #fff; }
.btn-profile-delete {
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid rgba(220,60,60,0.5);
  background: rgba(220,60,60,0.12);
  color: rgba(255,100,100,0.9);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s, border-color .15s;
}
.btn-profile-delete:hover {
  background: rgba(220,60,60,0.25);
  border-color: rgba(220,60,60,0.8);
}

@media (max-width: 480px) {
  .settings-card { padding: 28px 20px; }
}

/* Daily challenge button on onboarding */
.btn-daily {
  width: 100%;
  padding: 12px;
  border-radius: 12px;
  border: 2px solid #f7c948;
  background: transparent;
  color: #f7c948;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  margin-top: 10px;
  transition: background 0.2s, transform 0.15s;
  letter-spacing: 0.02em;
}
.btn-daily:hover { background: rgba(247,201,72,0.12); transform: translateY(-2px); }
.btn-daily.daily-done { border-color: #2ed573; color: #2ed573; }

/* Run Mode button on onboarding */
.btn-run-mode {
  width: 100%;
  padding: 12px;
  border-radius: 12px;
  border: 2px solid #a29bfe;
  background: transparent;
  color: #a29bfe;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  margin-top: 10px;
  transition: background 0.2s, transform 0.15s;
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.btn-run-mode:hover { background: rgba(162,155,254,0.12); transform: translateY(-2px); }
.run-mode-subtitle { font-size: 0.8rem; font-weight: 400; opacity: 0.8; }

/* Upgrade picker overlay */
.upgrade-picker {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.82);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 300;
}
.upgrade-picker.hidden { display: none; }

/* Upgrade acquired flash */
.upgrade-acquired {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 300;
  animation: upgrade-acquired-in 0.3s ease-out;
}
.upgrade-acquired.hidden { display: none; }
.upgrade-acquired.fade-out { animation: upgrade-acquired-out 0.4s ease-in forwards; }
@keyframes upgrade-acquired-in {
  from { opacity: 0; transform: scale(0.85); }
  to   { opacity: 1; transform: scale(1); }
}
@keyframes upgrade-acquired-out {
  from { opacity: 1; transform: scale(1); }
  to   { opacity: 0; transform: scale(1.08); }
}
.upgrade-acquired-icon {
  font-size: 3.5rem;
  margin-bottom: 12px;
  animation: upgrade-icon-pop 0.4s cubic-bezier(0.175,0.885,0.32,1.275);
}
@keyframes upgrade-icon-pop {
  from { transform: scale(0.4); }
  to   { transform: scale(1); }
}
.upgrade-acquired-label {
  font-size: 1.6rem;
  font-weight: 900;
  color: #a29bfe;
  margin-bottom: 8px;
  text-align: center;
}
.upgrade-acquired-desc {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.7);
  max-width: 300px;
  text-align: center;
  line-height: 1.4;
}
.upgrade-picker-card {
  background: #1a1a2e;
  border: 2px solid #a29bfe;
  border-radius: 16px;
  padding: 28px 24px;
  max-width: 460px;
  width: 92%;
  text-align: center;
}
.upgrade-picker-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: #a29bfe;
  margin-bottom: 14px;
}
.upgrade-picker-subtitle {
  font-size: 0.8rem;
  font-weight: 600;
  color: rgba(162,155,254,0.6);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 12px 0 10px;
}

/* ---- Reorder row inside upgrade picker ---- */
.reorder-section {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(162,155,254,0.25);
  border-radius: 10px;
  padding: 10px 12px 12px;
  margin-bottom: 4px;
}
.reorder-section.hidden { display: none; }
.reorder-label {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.5);
  margin-bottom: 8px;
}
.reorder-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0;
  margin-bottom: 8px;
}
.reorder-pill {
  background: rgba(162,155,254,0.12);
  border: 2px solid rgba(162,155,254,0.35);
  border-radius: 10px;
  padding: 7px 9px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.15s;
  font-size: 1.3rem;
  line-height: 1;
  min-width: 44px;
  text-align: center;
}
.reorder-pill:hover {
  border-color: #a29bfe;
  background: rgba(162,155,254,0.22);
  transform: translateY(-2px);
}
.reorder-pill.reorder-selected {
  border-color: #f7c948;
  background: rgba(247,201,72,0.18);
  box-shadow: 0 0 8px rgba(247,201,72,0.5);
  transform: translateY(-3px);
}
.reorder-icon { pointer-events: none; }
.reorder-connector {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.2);
  padding: 0 3px;
  user-select: none;
  pointer-events: none;
}
.reorder-connector-bonus {
  color: #f7c948;
  font-size: 0.9rem;
  text-shadow: 0 0 6px rgba(247,201,72,0.6);
  cursor: help;
  pointer-events: all;
}
.btn-skip-upgrade {
  background: transparent;
  border: 1px solid rgba(162,155,254,0.3);
  border-radius: 8px;
  color: rgba(162,155,254,0.7);
  font-size: 0.78rem;
  padding: 5px 12px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.btn-skip-upgrade:hover {
  background: rgba(162,155,254,0.1);
  color: #a29bfe;
}
.btn-skip-upgrade.hidden { display: none; }

/* Adjacency connectors in the active upgrades bar */
.upg-bar-connector {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.15);
  align-self: center;
  padding: 0 1px;
  user-select: none;
}
.upg-bar-connector-active {
  color: #f7c948;
  font-size: 0.75rem;
  text-shadow: 0 0 4px rgba(247,201,72,0.5);
}
.upgrade-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.upgrade-option {
  background: rgba(162,155,254,0.1);
  border: 1px solid rgba(162,155,254,0.4);
  border-radius: 12px;
  padding: 14px 16px;
  cursor: pointer;
  text-align: left;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
}
.upgrade-option:hover {
  background: rgba(162,155,254,0.2);
  border-color: #a29bfe;
  transform: translateY(-2px);
}
/* Synergy highlight on picker card */
.upgrade-option-synergy {
  border-color: rgba(247,201,72,0.6);
  background: rgba(247,201,72,0.07);
}
.upgrade-option-synergy:hover {
  border-color: #f7c948;
  background: rgba(247,201,72,0.15);
}
/* Conflict highlight on picker card */
.upgrade-option-conflict {
  border-color: rgba(253,121,168,0.5);
  background: rgba(253,121,168,0.06);
}
.upgrade-option-conflict:hover {
  border-color: #fd79a8;
  background: rgba(253,121,168,0.14);
}
.upgrade-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: #f0f0f0;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}
.upgrade-icon-sm { font-size: 1.1rem; }
.upgrade-desc {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
}
/* Synergy / conflict hint lines inside picker card */
.syn-hint-positive {
  font-size: 0.75rem;
  color: #f7c948;
  margin-top: 5px;
  line-height: 1.3;
}
.syn-hint-negative {
  font-size: 0.75rem;
  color: #fd79a8;
  margin-top: 5px;
  line-height: 1.3;
}

/* Run mode game-over section */
.run-summary {
  background: rgba(162,155,254,0.1);
  border: 1px solid rgba(162,155,254,0.4);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 16px;
  text-align: left;
}
.run-ante {
  font-size: 1.1rem;
  font-weight: 700;
  color: #a29bfe;
  margin-bottom: 8px;
}
.run-new-best { color: #f7c948; margin-left: 6px; }
.run-upgrades-row { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.run-upgrade-badge {
  background: rgba(162,155,254,0.18);
  border: 1px solid rgba(162,155,254,0.5);
  border-radius: 8px;
  padding: 3px 9px;
  font-size: 0.8rem;
  color: #c8c5ff;
}
.run-new-unlocks { font-size: 0.85rem; color: #2ed573; font-weight: 600; }
.daily-complete-badge {
  background: rgba(247,201,72,0.15);
  border: 1px solid rgba(247,201,72,0.4);
  border-radius: 8px;
  padding: 8px 12px;
  margin-bottom: 12px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--accent);
}

/* Transition animation */
.screen-fade-out {
  animation: fadeOut 0.4s ease forwards;
}
.screen-fade-in {
  animation: fadeIn 0.4s ease forwards;
}
@keyframes fadeOut {
  to { opacity: 0; transform: scale(0.97); }
}
@keyframes fadeIn {
  from { opacity: 0; transform: scale(1.03); }
  to { opacity: 1; transform: scale(1); }
}

/* ── Phone: voice-only mode (≤ 639px) ──────────────────────────────────── */
/* Tablets and desktops keep both keyboard + voice inputs visible.          */
@media (max-width: 639px) {
  /* Hide keyboard input and fire button — mic is the only input */
  #answer-input,
  #btn-fire {
    display: none;
  }
  /* Keep help button visible on mobile — tap to reveal answer */
  #btn-help {
    font-size: 1.2rem;
    padding: 12px 16px;
  }

  /* Centre the mic button in the input row */
  #input-wrapper {
    justify-content: center;
  }

  /* Larger, rounder mic button so it's easy to tap */
  #btn-mic {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    font-size: 1.6rem;
    flex-shrink: 0;
  }

  /* Bigger number in the voice suggestion pill */
  .voice-suggestion-num {
    font-size: 3rem;
  }

  /* Taller pill for easier tapping */
  .voice-suggestion {
    padding: 14px 24px;
  }
}