/* ========================================
   SwitchCom — Gamification UI Styles
   Clean Glassmorphism, Monochrome, Neutral
   ======================================== */

/* ========================================
   Color Palette - Minimalist Neutral
   ======================================== */
:root {
  /* Neutral Palette - No colors */
  --accent: #2A2A2A;
  --accent-light: #4A4A4A;
  --accent-muted: #6A6A6A;
  
  /* Functional Colors - Muted grays */
  --coin-bg: #F5F5F5;
  --coin-text: #4A4A4A;
  
  --success-muted: #6A6A6A;
  --danger-muted: #5A5A5A;
  
  /* Primary - Dark gray gradient */
  --primary-dark: #2A2A2A;
  --primary-gradient: linear-gradient(135deg, #3A3A3A 0%, #2A2A2A 100%);
  
  /* Shadows - Subtle */
  --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-medium: 0 4px 16px rgba(0, 0, 0, 0.08);
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.04);
}

/* ========================================
   Dark Mode Support
   ======================================== */
[data-theme="dark"] {
  --bg: #0D0D0D;
  --bg-secondary: #1A1A1A;
  --text: #E8E8E8;
  --text-muted: #A0A0A0;
  --text-light: #707070;
  --glass-bg: rgba(30, 30, 30, 0.7);
  --glass-border: rgba(255, 255, 255, 0.08);
  --switch-off: #2A2A2A;
  --switch-on: #E0E0E0;
  --coin-bg: #1A1A1A;
  --coin-text: #A0A0A0;
}

[data-theme="dark"] .mode-card,
[data-theme="dark"] .difficulty-pills,
[data-theme="dark"] .home-bottom-nav,
[data-theme="dark"] .icon-btn {
  background: rgba(30, 30, 30, 0.8);
}

[data-theme="dark"] .play-btn {
  background: linear-gradient(135deg, #E8E8E8 0%, #D0D0D0 100%);
  color: #1A1A1A;
}

[data-theme="dark"] .difficulty-pill.selected {
  background: #2A2A2A;
  color: #E8E8E8;
}

[data-theme="dark"] .level-complete-overlay {
  background: rgba(13, 13, 13, 0.95);
}

[data-theme="dark"] .modal-content {
  background: #1A1A1A;
}

[data-theme="dark"] .gameplay-header,
[data-theme="dark"] .gameplay-stats-card {
  background: rgba(30, 30, 30, 0.85);
}

[data-theme="dark"] .gameplay-btn {
  background: rgba(40, 40, 40, 0.8);
}

[data-theme="dark"] .gameplay-level-badge {
  background: rgba(40, 40, 40, 0.9);
}

[data-theme="dark"] .powerups-bar {
  background: rgba(30, 30, 30, 0.9);
  border-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .powerup-btn {
  background: rgba(40, 40, 40, 0.9);
  border-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .powerup-btn:hover:not(:disabled) {
  background: rgba(50, 50, 50, 1);
}

[data-theme="dark"] .home-header,
[data-theme="dark"] .home-content {
  background: var(--bg);
}

[data-theme="dark"] .currency-display {
  background: rgba(30, 30, 30, 0.8);
}

[data-theme="dark"] .nav-tab.active {
  background: rgba(50, 50, 50, 0.8);
}

/* ========================================
   Gameplay Header - Mobile Friendly
   ======================================== */
.gameplay-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  padding-top: calc(0.75rem + env(safe-area-inset-top, 0px));
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.gameplay-header.visible {
  opacity: 1;
  visibility: visible;
}

.gameplay-btn {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.gameplay-btn:hover {
  background: white;
  color: var(--text);
}

.gameplay-btn svg {
  width: 20px;
  height: 20px;
}

.gameplay-level-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
}

.gameplay-level-label {
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-light);
}

.gameplay-level-num {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
}

/* ========================================
   Gameplay Stats Card - Clean Glass
   ======================================== */
.gameplay-stats-card {
  position: fixed;
  top: calc(70px + env(safe-area-inset-top, 0px));
  left: 1rem;
  right: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 1.5rem;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
  z-index: 90;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
}

.gameplay-stats-card.visible {
  opacity: 1;
  visibility: visible;
}

.gameplay-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
}

.gameplay-stat-row {
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.gameplay-stat-value {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
}

.gameplay-stat-value.warning {
  color: #9A7A3A;
}

.gameplay-stat-value.danger {
  color: #9A5A5A;
}

.gameplay-stat-label {
  font-size: 0.65rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-light);
  margin-top: 0.15rem;
}

.gameplay-stat-divider {
  width: 1px;
  height: 36px;
  background: var(--glass-border);
  margin: 0 0.5rem;
}

.gameplay-hint-direction {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.gameplay-hint-direction.visible {
  opacity: 1;
}

.gameplay-hint-direction.warmer {
  color: #5A8A5A;
}

.gameplay-hint-direction.colder {
  color: #8A5A5A;
}

.gameplay-hint-direction.same {
  color: var(--text-light);
}

/* ========================================
   Home Screen Top Bar
   ======================================== */
.home-top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0.5rem 0;
  margin-bottom: 0.75rem;
}

.icon-btn {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 14px;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: var(--shadow-soft);
}

.icon-btn:hover {
  background: rgba(255, 255, 255, 0.8);
  color: var(--text);
}

.icon-btn svg {
  width: 22px;
  height: 22px;
  stroke-width: 1.5;
}

/* Currency display - monochrome */
.currency-display {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: transparent;
  border: none;
}

.coin-icon {
  font-size: 1.1rem;
  filter: grayscale(1);
  opacity: 0.7;
}

.coin-icon.large {
  font-size: 1.8rem;
}

.coin-amount {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

/* App title in header */
.header-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text);
}

.header-title svg {
  width: 20px;
  height: 20px;
}

/* ========================================
   Player Level & XP Display
   ======================================== */
.player-level-display {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.75rem 1rem;
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: 16px;
  margin-bottom: 1rem;
  box-shadow: var(--shadow-card);
}

.player-level-badge {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 12px;
}

.player-level-num {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
}

.xp-bar-container {
  flex: 1;
  height: 6px;
  background: rgba(0, 0, 0, 0.06);
  border-radius: 3px;
  overflow: hidden;
}

.xp-bar-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  border-radius: 3px;
  transition: width 0.5s ease;
}

.xp-text {
  font-size: 0.7rem;
  color: var(--text-light);
  white-space: nowrap;
}

/* ========================================
   Logo - Hidden, using title instead
   ======================================== */
.logo-container {
  display: none;
}

/* ========================================
   Mode Cards - Clean Glassmorphism
   ======================================== */
.mode-cards {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
}

.mode-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: 16px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
  box-shadow: var(--shadow-card);
}

.mode-card:hover {
  background: rgba(255, 255, 255, 0.7);
  transform: translateY(-1px);
}

.mode-card.selected {
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: var(--shadow-medium);
}

.mode-card-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 12px;
  font-size: 1.3rem;
  filter: grayscale(1);
  opacity: 0.8;
}

.mode-card-info {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.mode-card-name {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
}

.mode-card-desc {
  font-size: 0.75rem;
  color: var(--text-light);
}

/* ========================================
   Difficulty Pills - Clean Segmented
   ======================================== */
.difficulty-pills {
  display: flex;
  width: 100%;
  padding: 4px;
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: 14px;
  box-shadow: var(--shadow-card);
}

.difficulty-pill {
  flex: 1;
  padding: 0.65rem 1rem;
  background: transparent;
  border: none;
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--text-light);
  cursor: pointer;
  transition: all 0.2s ease;
}

.difficulty-pill:hover {
  color: var(--text-muted);
}

.difficulty-pill.selected {
  background: white;
  color: var(--text);
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

/* ========================================
   Play Button - Dark, Clean
   ======================================== */
.play-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  width: 100%;
  padding: 1.1rem 2rem;
  margin-top: 1.25rem;
  background: var(--primary-gradient);
  border: none;
  border-radius: 16px;
  color: white;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  cursor: pointer;
  box-shadow: var(--shadow-medium);
  transition: all 0.3s ease;
}

.play-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.play-btn:active {
  transform: translateY(0);
}

.play-btn-icon {
  font-size: 1rem;
  filter: none;
}

.play-btn-text {
  letter-spacing: 0.1em;
}

/* ========================================
   Daily Challenge Button - Subtle
   ======================================== */
.daily-challenge-btn {
  display: none; /* Hidden for now - can enable later */
}

/* ========================================
   Bottom Navigation - Clean Glass
   ======================================== */
.home-bottom-nav {
  display: flex;
  justify-content: center;
  gap: 0.25rem;
  width: 100%;
  padding: 0.5rem;
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 0, 0, 0.04);
  border-radius: 18px;
  margin-top: auto;
  box-shadow: var(--shadow-card);
}

.nav-tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  padding: 0.6rem 1.5rem;
  background: transparent;
  border: none;
  border-radius: 14px;
  color: var(--text-light);
  font-family: inherit;
  font-size: 0.7rem;
  font-weight: 400;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-tab svg {
  width: 20px;
  height: 20px;
  opacity: 0.6;
}

.nav-tab:hover {
  color: var(--text-muted);
}

.nav-tab:hover svg {
  opacity: 0.8;
}

.nav-tab.active {
  background: white;
  color: var(--text);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.nav-tab.active svg {
  opacity: 1;
}

/* ========================================
   Modals - Clean Glass
   ======================================== */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 400;
  padding: 1rem;
}

.modal.active {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background: var(--bg);
  border-radius: 24px;
  padding: 1.5rem;
  max-width: 360px;
  width: 100%;
  max-height: 80vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform 0.3s ease;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.modal.active .modal-content {
  transform: translateY(0);
}

.modal-content.modal-large {
  max-width: 400px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.modal-header h2 {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text);
}

.modal-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border: none;
  border-radius: 10px;
  font-size: 1.3rem;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}

.modal-close:hover {
  background: rgba(0, 0, 0, 0.08);
}

/* ========================================
   Daily Reward Modal
   ======================================== */
.daily-reward-modal .modal-content {
  text-align: center;
}

.daily-reward-modal h2 {
  font-size: 1.2rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 1rem;
}

.daily-streak-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.streak-fire {
  font-size: 1.3rem;
  filter: grayscale(1);
  opacity: 0.7;
}

.streak-count {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--text);
}

.streak-label {
  font-size: 0.8rem;
  color: var(--text-light);
}

.daily-reward-amount {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border-radius: 14px;
  margin-bottom: 1rem;
}

.reward-coins {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text);
}

.daily-calendar {
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.calendar-day {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-secondary);
  border-radius: 10px;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-light);
}

.calendar-day.claimed {
  background: rgba(0, 0, 0, 0.08);
  color: var(--text-muted);
}

.calendar-day.today {
  background: var(--accent);
  color: white;
}

.calendar-day.future {
  opacity: 0.4;
}

.claim-btn {
  width: 100%;
  padding: 1rem;
  background: var(--primary-gradient);
  border: none;
  border-radius: 14px;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 500;
  color: white;
  cursor: pointer;
  box-shadow: var(--shadow-medium);
  transition: all 0.2s ease;
}

.claim-btn:hover {
  transform: translateY(-2px);
}

.claim-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

/* ========================================
   Achievements Modal
   ======================================== */
.achievements-progress {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 1rem;
}

.achievements-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.achievement-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem;
  background: var(--bg-secondary);
  border-radius: 14px;
  transition: all 0.2s ease;
}

.achievement-item.locked {
  opacity: 0.4;
}

.achievement-item.unlocked {
  background: rgba(0, 0, 0, 0.04);
}

.achievement-icon {
  font-size: 1.3rem;
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border-radius: 11px;
  filter: grayscale(1);
  opacity: 0.8;
}

.achievement-info {
  flex: 1;
}

.achievement-name {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text);
}

.achievement-desc {
  font-size: 0.7rem;
  color: var(--text-light);
}

.achievement-reward {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* ========================================
   Shop Modal
   ======================================== */
.shop-coins {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.8rem;
  background: var(--bg-secondary);
  border-radius: 10px;
  font-weight: 500;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.shop-items {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.shop-item {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 1rem;
  background: var(--bg-secondary);
  border-radius: 16px;
}

.shop-item-icon {
  font-size: 1.5rem;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border-radius: 12px;
  filter: grayscale(1);
  opacity: 0.8;
}

.shop-item-info {
  flex: 1;
}

.shop-item-name {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
}

.shop-item-desc {
  font-size: 0.7rem;
  color: var(--text-light);
}

.shop-item-buy {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.55rem 0.85rem;
  background: var(--primary-gradient);
  border: none;
  border-radius: 10px;
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 500;
  color: white;
  cursor: pointer;
  transition: all 0.2s ease;
}

.shop-item-buy:hover {
  transform: scale(1.05);
}

.shop-item-buy:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

/* ========================================
   Stats Modal
   ======================================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem;
  background: var(--bg-secondary);
  border-radius: 14px;
}

.stat-card-value {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text);
}

.stat-card-label {
  font-size: 0.65rem;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.best-runs-section h3 {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.best-runs-grid {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.best-run-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem;
  background: var(--bg-secondary);
  border-radius: 12px;
}

.best-run-mode-name {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text);
}

.best-run-scores-display {
  display: flex;
  gap: 0.5rem;
  font-size: 0.7rem;
  color: var(--text-muted);
}

.best-run-scores-display span {
  padding: 0.25rem 0.5rem;
  background: var(--bg);
  border-radius: 6px;
}

/* ========================================
   Leaderboard Modal
   ======================================== */
.leaderboard-tabs {
  display: flex;
  gap: 0.25rem;
  padding: 4px;
  background: var(--bg-secondary);
  border-radius: 12px;
  margin-bottom: 1rem;
}

.lb-tab {
  flex: 1;
  padding: 0.55rem;
  background: transparent;
  border: none;
  border-radius: 9px;
  font-family: inherit;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--text-light);
  cursor: pointer;
  transition: all 0.2s ease;
}

.lb-tab.active {
  background: white;
  color: var(--text);
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.leaderboard-list {
  min-height: 200px;
}

.leaderboard-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 200px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.leaderboard-placeholder .sub {
  font-size: 0.75rem;
  color: var(--text-light);
  margin-top: 0.25rem;
}

/* ========================================
   Power-ups Bar (Gameplay) - Cleaner
   ======================================== */
.powerups-bar {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.5rem;
  padding: 0.6rem;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 18px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 60;
  box-shadow: var(--shadow-medium);
}

.powerups-bar.visible {
  opacity: 1;
  visibility: visible;
}

.powerup-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  min-width: 70px;
}

.powerup-btn:hover:not(:disabled) {
  background: white;
  box-shadow: var(--shadow-soft);
  transform: translateY(-2px);
}

.powerup-btn:active:not(:disabled) {
  transform: translateY(0);
}

.powerup-btn:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.powerup-icon {
  font-size: 1.3rem;
  filter: grayscale(1);
  opacity: 0.8;
}

.powerup-label {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.powerup-cost {
  font-size: 0.6rem;
  font-weight: 600;
  color: var(--text-muted);
}

.powerup-btn.has-inventory .powerup-cost {
  color: var(--text);
}

/* ========================================
   Level Complete Celebration - Clean
   ======================================== */
.level-complete-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(250, 250, 250, 0.96);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 500;
}

.level-complete-overlay.active {
  opacity: 1;
  visibility: visible;
}

.level-complete-content {
  text-align: center;
  transform: scale(0.9);
  transition: transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.level-complete-overlay.active .level-complete-content {
  transform: scale(1);
}

.level-badge-container {
  position: relative;
  width: 90px;
  height: 90px;
  margin: 0 auto 1.25rem;
}

.level-badge {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-gradient);
  border-radius: 22px;
  box-shadow: var(--shadow-medium);
  position: relative;
  z-index: 2;
}

.level-badge-num {
  font-size: 2.2rem;
  font-weight: 600;
  color: white;
}

.level-badge-glow {
  position: absolute;
  inset: -8px;
  background: var(--accent);
  border-radius: 28px;
  opacity: 0.15;
  filter: blur(12px);
  animation: badgeGlow 2s ease-in-out infinite;
}

@keyframes badgeGlow {
  0%, 100% { opacity: 0.15; transform: scale(1); }
  50% { opacity: 0.25; transform: scale(1.05); }
}

.level-complete-title {
  font-size: 1.3rem;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 1rem;
}

.level-rewards {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
}

.level-reward {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.level-reward .coin-icon,
.level-reward .xp-icon {
  filter: grayscale(1);
  opacity: 0.7;
}

.reward-amount {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text);
}

.xp-icon {
  font-size: 1.1rem;
}

.streak-indicator {
  display: none;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  background: var(--bg-secondary);
  border-radius: 20px;
  margin-bottom: 0.75rem;
}

.streak-indicator.visible {
  display: flex;
  animation: bounceIn 0.5s ease;
}

.streak-text {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

.perfect-indicator {
  display: none;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
}

.perfect-indicator.visible {
  display: block;
  animation: fadeIn 0.5s ease;
}

@keyframes bounceIn {
  0% { transform: scale(0); opacity: 0; }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

/* ========================================
   Achievement Toast - Clean
   ======================================== */
.achievement-toast {
  position: fixed;
  top: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(-100px);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.875rem 1.25rem;
  background: white;
  border: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 600;
}

.achievement-toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.achievement-toast-icon {
  font-size: 1.4rem;
  filter: grayscale(1);
  opacity: 0.8;
}

.achievement-toast-info {
  display: flex;
  flex-direction: column;
}

.achievement-toast-title {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--text-light);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.achievement-toast-name {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
}

/* ========================================
   Game Over Rewards
   ======================================== */
.gameover-rewards {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.reward-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.reward-icon {
  font-size: 1.2rem;
  filter: grayscale(1);
  opacity: 0.7;
}

.reward-value {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
}

/* ========================================
   Gameplay Currency Display
   ======================================== */
.gameplay-currency {
  position: fixed;
  top: 1rem;
  left: 1rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.4rem 0.8rem;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(0, 0, 0, 0.06);
  border-radius: 12px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 45;
}

.gameplay-currency.visible {
  opacity: 1;
  visibility: visible;
}

.gameplay-coins {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

/* ========================================
   Lives as Hearts - Monochrome
   ======================================== */
.lives-hearts {
  display: flex;
  gap: 0.3rem;
}

.heart {
  font-size: 1rem;
  filter: grayscale(1);
  opacity: 0.8;
  transition: all 0.2s ease;
}

.heart.lost {
  opacity: 0.2;
}

.heart.losing {
  animation: heartLose 0.4s ease;
}

@keyframes heartLose {
  0% { transform: scale(1); }
  50% { transform: scale(1.2); opacity: 0.4; }
  100% { transform: scale(0.9); opacity: 0.2; }
}

/* ========================================
   Safe Area Padding (iOS)
   ======================================== */
@supports (padding-top: env(safe-area-inset-top)) {
  .start-screen {
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
  }
  
  .home-bottom-nav {
    padding-bottom: calc(0.5rem + env(safe-area-inset-bottom));
  }
  
  .powerups-bar {
    bottom: calc(1.5rem + env(safe-area-inset-bottom));
  }
}

/* ========================================
   Responsive Adjustments
   ======================================== */
@media (max-height: 700px) {
  .player-level-display {
    margin-bottom: 0.5rem;
    padding: 0.6rem 0.875rem;
  }
  
  .mode-card {
    padding: 0.75rem 1rem;
  }
  
  .play-btn {
    padding: 0.95rem 1.5rem;
    margin-top: 1rem;
  }
}