/* ========================================
   Gamification — Стили геймификации
   Design tokens, blue accents, card system
   ======================================== */

/* ---------- Level panel ---------- */
.potok-level-panel {
  margin: 0 0 1rem;
  padding: 1rem;
  border-radius: 14px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  animation: potok-gam-fade-in 0.5s ease both;
}

.potok-level-panel__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

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

.potok-level-panel__level-icon {
  font-size: 1.4rem;
}

.potok-level-panel__level-num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent-blue);
  line-height: 1;
}

.potok-level-panel__level-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.potok-level-panel__xp {
  display: flex;
  align-items: baseline;
  gap: 0.3rem;
}

.potok-level-panel__xp-val {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-heading);
  font-variant-numeric: tabular-nums;
}

.potok-level-panel__xp-label {
  font-size: 0.75rem;
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Level progress track — blue gradient */
.potok-level-panel__track {
  position: relative;
  width: 100%;
  height: 10px;
  border-radius: 5px;
  background-color: var(--bg-hover);
  overflow: hidden;
  margin-bottom: 0.4rem;
}

.potok-level-panel__fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%;
  border-radius: 5px;
  background: linear-gradient(90deg, #3B82F6, #60A5FA);
  transition: width 0.8s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.3);
}

.potok-level-panel__progress-text {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.potok-level-panel__badges-count {
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-align: center;
  margin-top: 0.3rem;
}

/* ---------- Badge toast notification ---------- */
.potok-badge-toast {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  max-width: 320px;
  padding: 1.2rem;
  border-radius: 14px;
  background: var(--bg-card);
  border: 1px solid var(--accent-blue);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.4),
    0 0 20px rgba(59, 130, 246, 0.15);
  z-index: 1000;
  opacity: 0;
  transform: translateX(40px) scale(0.95);
  transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
}

.potok-badge-toast.show {
  opacity: 1;
  transform: translateX(0) scale(1);
  pointer-events: auto;
}

.potok-badge-toast__icon {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 0.5rem;
  animation: potok-badge-bounce 0.6s ease;
}

.potok-badge-toast__title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-blue);
  text-align: center;
  margin-bottom: 0.25rem;
}

.potok-badge-toast__name {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text-heading);
  text-align: center;
  margin-bottom: 0.2rem;
}

.potok-badge-toast__desc {
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 0.4rem;
}

.potok-badge-toast__xp {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent-blue);
  text-align: center;
  background: rgba(59, 130, 246, 0.12);
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: 6px;
}

.potok-badge-toast__rarity {
  display: block;
  text-align: center;
  margin-top: 0.4rem;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
}

/* ---------- Badge rarity colors ---------- */
.potok-badge-card__rarity--common,
.potok-badge-toast__rarity--common {
  color: #9e9e9e;
  background-color: rgba(158, 158, 158, 0.12);
}

.potok-badge-card__rarity--uncommon,
.potok-badge-toast__rarity--uncommon {
  color: #4caf50;
  background-color: rgba(76, 175, 80, 0.12);
}

.potok-badge-card__rarity--rare,
.potok-badge-toast__rarity--rare {
  color: #3B82F6;
  background-color: rgba(59, 130, 246, 0.12);
}

.potok-badge-card__rarity--epic,
.potok-badge-toast__rarity--epic {
  color: #a855f7;
  background-color: rgba(168, 85, 247, 0.12);
}

.potok-badge-card__rarity--legendary,
.potok-badge-toast__rarity--legendary {
  color: var(--accent-orange);
  background-color: rgba(242, 153, 74, 0.12);
  animation: potok-legendary-glow 2s ease-in-out infinite;
}

/* ---------- Badge tabs ---------- */
.potok-badges-tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.2rem;
  flex-wrap: wrap;
}

.potok-badges-tab {
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  background: transparent;
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.potok-badges-tab:hover {
  background-color: var(--bg-hover);
  border-color: var(--accent-blue);
  color: var(--text-main);
}

.potok-badges-tab.active {
  background-color: var(--accent-blue);
  color: #fff;
  border-color: var(--accent-blue);
}

.potok-badges-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 1rem;
}

/* ---------- Badge cards ---------- */
.potok-badge-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.2rem 0.8rem;
  border-radius: 14px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
  animation: potok-gam-fade-in 0.4s ease both;
}

.potok-badge-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  border-color: var(--accent-blue);
}

/* Rarity borders */
.potok-badge-card--common {
  border-color: rgba(158, 158, 158, 0.25);
}

.potok-badge-card--uncommon {
  border-color: rgba(76, 175, 80, 0.3);
}

.potok-badge-card--rare {
  border-color: rgba(59, 130, 246, 0.35);
}

.potok-badge-card--epic {
  border-color: rgba(168, 85, 247, 0.3);
}

.potok-badge-card--legendary {
  border-color: rgba(242, 153, 74, 0.4);
  box-shadow: 0 0 12px rgba(242, 153, 74, 0.15);
}

.potok-badge-card__icon {
  font-size: 2.8rem;
  margin-bottom: 0.6rem;
  transition: transform 0.3s ease;
}

.potok-badge-card:hover .potok-badge-card__icon {
  transform: scale(1.15);
}

.potok-badge-card__icon--locked {
  filter: grayscale(1) opacity(0.4);
}

.potok-badge-card__name {
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--text-heading);
  text-align: center;
  margin-bottom: 0.25rem;
}

.potok-badge-card__desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.potok-badge-card__rarity {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
}

.potok-badge-card__lock {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  font-size: 0.9rem;
  opacity: 0.5;
}

/* ---------- Stats cards ---------- */
.potok-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.potok-stats-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.2rem;
  border-radius: 14px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
  animation: potok-gam-fade-in 0.4s ease both;
}

.potok-stats-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.potok-stats-card__icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
}

.potok-stats-card__value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent-blue);
  font-variant-numeric: tabular-nums;
  margin-bottom: 0.2rem;
}

.potok-stats-card__label {
  font-size: 0.82rem;
  color: var(--text-secondary);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.potok-stats-card__track {
  width: 80%;
  height: 6px;
  border-radius: 3px;
  background-color: var(--bg-hover);
  overflow: hidden;
  margin-bottom: 0.3rem;
}

.potok-stats-card__fill {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, #3B82F6, #60A5FA);
  transition: width 0.6s ease;
}

.potok-stats-card__sub {
  font-size: 0.72rem;
  color: var(--text-secondary);
}

/* ---------- Action history ---------- */
.potok-stats-history {
  margin-bottom: 1.5rem;
  padding: 1rem;
  border-radius: 14px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
}

.potok-stats-history h3 {
  font-size: 1rem;
  margin-bottom: 0.8rem;
  color: var(--text-heading);
}

.potok-stats-history__list {
  max-height: 300px;
  overflow-y: auto;
}

.potok-stats-history__item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.82rem;
  gap: 0.5rem;
}

.potok-stats-history__item:last-child {
  border-bottom: none;
}

.potok-stats-history__xp {
  font-weight: 700;
  color: var(--accent-blue);
  white-space: nowrap;
}

.potok-stats-history__reason {
  color: var(--text-main);
  flex: 1;
  text-align: center;
}

.potok-stats-history__time {
  color: var(--text-secondary);
  font-size: 0.72rem;
  white-space: nowrap;
}

.potok-stats-empty {
  color: var(--text-secondary);
  font-style: italic;
  text-align: center;
  padding: 1rem;
}

/* ---------- Info panel ---------- */
.potok-stats-info {
  margin-bottom: 1.5rem;
  padding: 1rem;
  border-radius: 14px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.potok-stats-info strong {
  color: var(--text-heading);
}

/* ---------- Action buttons ---------- */
.potok-stats-actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.potok-stats-btn {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  background: transparent;
  color: var(--text-main);
  font-size: 0.82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.potok-stats-btn:hover {
  background-color: var(--bg-hover);
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.potok-stats-btn--reset {
  color: #ef5350;
  border-color: rgba(239, 83, 80, 0.25);
}

.potok-stats-btn--reset:hover {
  background-color: rgba(239, 83, 80, 0.1);
  border-color: #ef5350;
}

/* ---------- Level-up toast ---------- */
.potok-levelup-toast {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-blue-hover));
  font-size: 1rem;
  padding: 0.8rem 1.5rem;
  color: #fff;
  animation: potok-levelup-pulse 0.5s ease;
}

/* ---------- Animations ---------- */
@keyframes potok-gam-fade-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes potok-badge-bounce {
  0% { transform: scale(0.5); }
  50% { transform: scale(1.2); }
  70% { transform: scale(0.9); }
  100% { transform: scale(1); }
}

@keyframes potok-legendary-glow {
  0%, 100% {
    box-shadow: 0 0 4px rgba(242, 153, 74, 0.2);
  }
  50% {
    box-shadow: 0 0 14px rgba(242, 153, 74, 0.35);
  }
}

@keyframes potok-levelup-pulse {
  0% { transform: translateX(-50%) scale(0.8); }
  50% { transform: translateX(-50%) scale(1.05); }
  100% { transform: translateX(-50%) scale(1); }
}

/* ---------- Responsive ---------- */
@media screen and (max-width: 59.9375em) {
  .potok-level-panel {
    margin: 0 0 0.8rem;
    padding: 0.8rem;
  }

  .potok-level-panel__level-num {
    font-size: 1.3rem;
  }

  .potok-level-panel__xp-val {
    font-size: 1.1rem;
  }

  .potok-badges-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 0.7rem;
  }

  .potok-badge-card {
    padding: 1rem 0.6rem;
  }

  .potok-badge-card__icon {
    font-size: 2.2rem;
  }

  .potok-stats-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 0.7rem;
  }

  .potok-stats-card__value {
    font-size: 1.3rem;
  }

  .potok-badge-toast {
    top: auto;
    bottom: 1.5rem;
    right: 1rem;
    left: 1rem;
    max-width: none;
  }

  .potok-stats-actions {
    flex-direction: column;
  }

  .potok-stats-btn {
    width: 100%;
    text-align: center;
  }
}

@media screen and (max-width: 30em) {
  .potok-badges-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .potok-stats-grid {
    grid-template-columns: 1fr 1fr;
  }
}