/**
 * pool-modern.css - Custom CSS additions for the mining pool frontend
 *
 * Adds new classes only. Does NOT override existing Material Dashboard 3.1.0
 * styles. Uses the existing colour palette:
 *   Primary  #e91e63
 *   Info     #17c1e8
 *   Dark     #344767
 */

/* ===================================================================
   1. CSS Custom Properties – Dark / Light mode
   =================================================================== */

body.dark-version {
  --pool-card-bg: #1a2035;
  --pool-text-primary: #fff;
  --pool-text-secondary: #adb5bd;
  --pool-border-color: #2d3748;
  --pool-input-bg: #1a2035;
  --pool-table-hover: rgba(255, 255, 255, 0.05);
  --pool-badge-bg: rgba(255, 255, 255, 0.08);
  --pool-focus-ring: rgba(233, 30, 99, 0.35);
}

body:not(.dark-version) {
  --pool-card-bg: #fff;
  --pool-text-primary: #344767;
  --pool-text-secondary: #67748e;
  --pool-border-color: #dee2e6;
  --pool-input-bg: #fff;
  --pool-table-hover: rgba(0, 0, 0, 0.02);
  --pool-badge-bg: rgba(0, 0, 0, 0.04);
  --pool-focus-ring: rgba(233, 30, 99, 0.25);
}

/* ===================================================================
   2. Smooth theme transitions
   =================================================================== */

body {
  transition: background-color 0.3s ease;
}

.card {
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* ===================================================================
   3. Dark mode overrides (additive, scoped to body.dark-version)
   =================================================================== */

body.dark-version .chart-canvas {
  filter: none;
}

body.dark-version .card {
  background-color: var(--pool-card-bg);
}

body.dark-version .card .text-dark {
  color: var(--pool-text-primary) !important;
}

body.dark-version .table > :not(caption) > * > * {
  color: var(--pool-text-secondary);
}

body.dark-version .text-secondary {
  color: var(--pool-text-secondary) !important;
}

body.dark-version .form-control {
  background-color: var(--pool-input-bg);
  color: var(--pool-text-primary);
  border-color: var(--pool-border-color);
}

body.dark-version .form-control:focus {
  border-color: #e91e63;
  box-shadow: 0 0 0 0.2rem var(--pool-focus-ring);
}

body.dark-version .list-group-item {
  background-color: transparent;
}

body.dark-version .bg-gray-100 {
  background-color: #111827 !important;
}

/* ===================================================================
   4. Balance progress bar
   =================================================================== */

.balance-progress {
  position: relative;
  height: 24px;
  border-radius: 12px;
  background-color: var(--pool-badge-bg);
  overflow: hidden;
}

.balance-progress .progress-bar {
  height: 100%;
  border-radius: 12px;
  background: linear-gradient(135deg, #e91e63 0%, #d81b60 100%);
  transition: width 0.6s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
  min-width: 2rem;
}

.balance-progress .progress-label {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--pool-text-primary);
  pointer-events: none;
  white-space: nowrap;
}

/* ===================================================================
   5. Tab styles for YourStats page
   =================================================================== */

.pool-tabs {
  border-bottom: 2px solid var(--pool-border-color);
  gap: 0.25rem;
}

.pool-tabs .nav-link {
  color: var(--pool-text-secondary);
  font-weight: 500;
  font-size: 0.875rem;
  padding: 0.625rem 1.25rem;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  border-radius: 0;
  background: transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.pool-tabs .nav-link:hover {
  color: #e91e63;
  border-bottom-color: rgba(233, 30, 99, 0.3);
}

.pool-tabs .nav-link:focus-visible {
  outline: 2px solid #e91e63;
  outline-offset: -2px;
}

.pool-tabs .nav-link.active {
  color: #e91e63;
  font-weight: 600;
  border-bottom-color: #e91e63;
  background: transparent;
}

/* ===================================================================
   6. Earnings calculator card
   =================================================================== */

.calculator-card {
  border: 1px solid var(--pool-border-color);
  border-radius: 0.75rem;
  padding: 1.5rem;
  background-color: var(--pool-card-bg);
}

.calculator-card .calculator-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--pool-text-primary);
  margin-bottom: 1rem;
}

.calculator-card .preset-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.375rem 0.875rem;
  border: 1px solid var(--pool-border-color);
  border-radius: 0.5rem;
  background-color: transparent;
  color: var(--pool-text-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.calculator-card .preset-btn:hover {
  border-color: #e91e63;
  color: #e91e63;
  background-color: rgba(233, 30, 99, 0.05);
}

.calculator-card .preset-btn:focus-visible {
  outline: 2px solid #e91e63;
  outline-offset: 2px;
}

.calculator-card .preset-btn.active {
  background-color: #e91e63;
  border-color: #e91e63;
  color: #fff;
}

.calculator-card .earnings-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.calculator-card .earnings-cell {
  text-align: center;
  padding: 1rem 0.5rem;
  border-radius: 0.5rem;
  background-color: var(--pool-badge-bg);
}

.calculator-card .earnings-cell .label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--pool-text-secondary);
  margin-bottom: 0.375rem;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.calculator-card .earnings-cell .value {
  display: block;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--pool-text-primary);
}

@media (max-width: 767.98px) {
  .calculator-card .earnings-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 479.98px) {
  .calculator-card .earnings-grid {
    grid-template-columns: 1fr;
  }
}

/* ===================================================================
   7. Pagination controls
   =================================================================== */

.pool-pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 0;
}

.pool-pagination .page-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 36px;
  padding: 0 0.5rem;
  border: 1px solid var(--pool-border-color);
  border-radius: 0.5rem;
  background-color: transparent;
  color: var(--pool-text-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.pool-pagination .page-btn:hover {
  border-color: #e91e63;
  color: #e91e63;
  background-color: rgba(233, 30, 99, 0.05);
}

.pool-pagination .page-btn:focus-visible {
  outline: 2px solid #e91e63;
  outline-offset: 2px;
}

.pool-pagination .page-btn.active {
  background-color: #e91e63;
  border-color: #e91e63;
  color: #fff;
  pointer-events: none;
}

.pool-pagination .page-btn:disabled,
.pool-pagination .page-btn.disabled {
  opacity: 0.4;
  pointer-events: none;
}

.pool-pagination .page-info {
  font-size: 0.8125rem;
  color: var(--pool-text-secondary);
  padding: 0 0.5rem;
}

/* ===================================================================
   8. Worker status indicators
   =================================================================== */

.worker-online {
  color: #4CAF50;
}

.worker-offline {
  color: #f44336;
}

.worker-status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 0.375rem;
  vertical-align: middle;
}

.worker-status-dot.online {
  background-color: #4CAF50;
  box-shadow: 0 0 6px rgba(76, 175, 80, 0.5);
}

.worker-status-dot.offline {
  background-color: #f44336;
  box-shadow: 0 0 6px rgba(244, 67, 54, 0.3);
}

/* ===================================================================
   9. Language selector dropdown
   =================================================================== */

.lang-selector {
  position: relative;
  display: inline-block;
}

.lang-selector .lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--pool-border-color);
  border-radius: 0.5rem;
  background-color: transparent;
  color: var(--pool-text-secondary);
  font-size: 0.8125rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
}

.lang-selector .lang-toggle:hover {
  border-color: #17c1e8;
  color: #17c1e8;
}

.lang-selector .lang-toggle:focus-visible {
  outline: 2px solid #17c1e8;
  outline-offset: 2px;
}

.lang-selector .lang-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  right: 0;
  min-width: 140px;
  background-color: var(--pool-card-bg);
  border: 1px solid var(--pool-border-color);
  border-radius: 0.5rem;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  z-index: 1050;
  padding: 0.375rem 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
}

.lang-selector .lang-dropdown.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-selector .lang-option {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.5rem 1rem;
  border: none;
  background: transparent;
  color: var(--pool-text-secondary);
  font-size: 0.8125rem;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease;
  text-align: left;
}

.lang-selector .lang-option:hover {
  background-color: var(--pool-table-hover);
  color: var(--pool-text-primary);
}

.lang-selector .lang-option.active {
  color: #e91e63;
  font-weight: 600;
}

/* ===================================================================
   10. Utility / misc
   =================================================================== */

/* Muted hint text beneath inputs */
.pool-hint {
  font-size: 0.75rem;
  color: var(--pool-text-secondary);
  margin-top: 0.25rem;
}

/* Stat value highlight */
.pool-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--pool-text-primary);
  line-height: 1.2;
}

.pool-stat-label {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--pool-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* Responsive table wrapper */
.pool-table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.pool-table-responsive table {
  min-width: 600px;
}

/* Hover rows */
.pool-table-hover tbody tr:hover {
  background-color: var(--pool-table-hover);
}

/* Loading skeleton placeholder */
.pool-skeleton {
  background: linear-gradient(90deg,
    var(--pool-badge-bg) 25%,
    rgba(255, 255, 255, 0.05) 50%,
    var(--pool-badge-bg) 75%
  );
  background-size: 200% 100%;
  animation: pool-skeleton-shimmer 1.5s ease-in-out infinite;
  border-radius: 0.25rem;
  display: inline-block;
}

@keyframes pool-skeleton-shimmer {
  0% {
    background-position: 200% 0;
  }
  100% {
    background-position: -200% 0;
  }
}

/* Focus state for all pool custom inputs */
.pool-input:focus {
  border-color: #e91e63;
  box-shadow: 0 0 0 0.2rem var(--pool-focus-ring);
  outline: none;
}