/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 1rem;
  border: none;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: var(--font-size-base);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  gap: 0.5rem;
}

.btn-primary {
  background-color: var(--accent-primary);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
}

.btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background-color: var(--bg-hover);
}

.btn-danger {
  background-color: var(--color-error);
  color: #ffffff;
  opacity: 0.9;
}

.btn-danger:hover {
  opacity: 1;
}

.btn-ghost {
  background-color: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  background-color: var(--bg-hover);
  color: var(--text-primary);
}

.btn-full {
  width: 100%;
}

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--accent-primary);
  color: var(--accent-primary);
}

.btn-outline:hover {
  background-color: var(--accent-primary);
  color: #ffffff;
}

.btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: 0.75rem 1.5rem;
  font-size: var(--font-size-lg);
}


/* Cards */
.card {
  background-color: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  border: 1px solid var(--bg-tertiary);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}


/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.5rem;
  border-radius: 9999px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
}

.badge--buy {
  background-color: rgba(34, 197, 94, 0.2);
  color: var(--color-success);
  border: 1px solid rgba(34, 197, 94, 0.3);
}

.badge--sell {
  background-color: rgba(239, 68, 68, 0.2);
  color: var(--color-error);
  border: 1px solid rgba(239, 68, 68, 0.3);
}


/* Forms */
.form-group {
  margin-bottom: var(--space-md);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-xs);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
}

.input,
.select,
.form-control,
.form-input {
  width: 100%;
  padding: 0.5rem 0.75rem;
  background-color: var(--bg-tertiary);
  border: 1px solid var(--bg-hover);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: var(--font-size-base);
  transition: border-color 0.2s ease;
}

.input:focus,
.select:focus,
.form-control:focus,
.form-input:focus {
  outline: none;
  border-color: var(--accent-primary);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.form-row {
  display: flex;
  flex-direction: row;
  gap: var(--space-md);
  align-items: flex-end;
}

.checkbox-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
}

.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}


/* Tables */
.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.table th,
.table td {
  padding: var(--space-md);
  border-bottom: 1px solid var(--bg-tertiary);
}

.table th {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.table tbody tr:hover {
  background-color: rgba(255, 255, 255, 0.02);
}


/* Modals */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 50;
  backdrop-filter: blur(4px);
}

.modal-content {
  background-color: var(--bg-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  width: 100%;
  max-width: 500px;
  border: 1px solid var(--bg-tertiary);
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}


/* Spinner */
.spinner {
  width: 2rem;
  height: 2rem;
  border: 3px solid rgba(59, 130, 246, 0.3);
  border-radius: 50%;
  border-top-color: var(--accent-primary);
  animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}


/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg) 0;
  text-align: center;
  color: var(--text-muted);
}


/* Toast */
#toast-container {
  position: fixed;
  bottom: var(--space-lg);
  right: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  z-index: 100;
  pointer-events: none;
}

.toast {
  background-color: var(--bg-card);
  border: 1px solid var(--bg-tertiary);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-lg);
  color: var(--text-primary);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  animation: slideIn 0.3s ease forwards;
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

.toast--success {
  border-left: 4px solid var(--color-success);
}

.toast--error {
  border-left: 4px solid var(--color-error);
}

.toast--info {
  border-left: 4px solid var(--color-info);
}

.toast--warning {
  border-left: 4px solid var(--color-warning);
}


/* Notification Bell */
.notification-bell {
  position: relative;
  cursor: pointer;
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

.notification-bell:hover {
  color: var(--text-primary);
}

.badge-count {
  position: absolute;
  top: -5px;
  right: -5px;
  background-color: var(--color-error);
  color: white;
  font-size: 0.65rem;
  font-weight: bold;
  padding: 2px 5px;
  border-radius: 9999px;
  min-width: 18px;
  text-align: center;
}


/* Pricing */
.price--positive {
  color: var(--color-success);
}

.price--negative {
  color: var(--color-error);
}


/* Header */
.header__left {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header__right {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header__title {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.header__menu-btn {
  display: none;
  background: transparent;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 1.5rem;
}

@media (max-width: 768px) {
  .header__menu-btn {
    display: block;
  }
}


/* Sidebar */
.sidebar__header {
  padding: var(--space-lg);
  border-bottom: 1px solid var(--bg-tertiary);
}

.sidebar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
}

.sidebar__logo-icon {
  width: 32px;
  height: 32px;
  fill: var(--accent-primary);
}

.sidebar__logo-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.025em;
}

.sidebar__nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: var(--space-md) 0;
  flex: 1;
  overflow-y: auto;
}

.sidebar__link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.75rem var(--space-lg);
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: all 0.2s ease;
}

.sidebar__link:hover {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}

.sidebar__link--active {
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--accent-primary);
  border-right: 3px solid var(--accent-primary);
}

.sidebar__link svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.sidebar__footer {
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--bg-tertiary);
}

.sidebar__status {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-bottom: var(--space-md);
}

.sidebar__user {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.sidebar__user-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-primary);
  display: block;
}

.sidebar__user-role {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  display: block;
}

.status-indicator {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-error);
}

.status-indicator.connected {
  background-color: var(--color-success);
  box-shadow: 0 0 8px rgba(34, 197, 94, 0.5);
}


/* Signal Card BEM */
.signal-card__header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-md);
}

.signal-card__instrument {
  display: flex;
  flex-direction: column;
}

.signal-card__symbol {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--text-primary);
}

.signal-card__meta {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

.signal-card__badges {
  display: flex;
  gap: var(--space-xs);
  align-items: center;
}

.signal-card__prices {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

@media (min-width: 640px) {
  .signal-card__prices {
    grid-template-columns: repeat(4, 1fr);
  }
}

.signal-card__price-item {
  display: flex;
  flex-direction: column;
}

.signal-card__price-label {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 0.125rem;
}

.signal-card__price-value {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: var(--font-size-sm);
}

.signal-card__pnl {
  padding: 0.5rem;
  text-align: center;
  border-radius: var(--radius-md);
  font-weight: 700;
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-md);
}

.signal-card__pnl.price--positive {
  background-color: rgba(34, 197, 94, 0.1);
  color: var(--color-success);
}

.signal-card__pnl.price--negative {
  background-color: rgba(239, 68, 68, 0.1);
  color: var(--color-error);
}

.signal-card__footer {
  display: flex;
  justify-content: space-between;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.signal-card__time {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.signal-card__lots {
  font-weight: 500;
  color: var(--text-secondary);
}

.fav-icon {
  cursor: pointer;
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.fav-icon:hover {
  color: var(--color-warning);
}


/* Tabs */
.tabs {
  display: flex;
  flex-direction: row;
  gap: var(--space-md);
  border-bottom: 1px solid var(--bg-tertiary);
  margin-bottom: var(--space-lg);
}

.tab-btn {
  background: transparent;
  border: none;
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s ease;
  margin-bottom: -1px;
}

.tab-btn.active {
  color: var(--accent-primary);
  border-bottom-color: var(--accent-primary);
}

.tab-btn:hover:not(.active) {
  color: var(--text-primary);
  border-bottom-color: var(--bg-hover);
}


/* Toggle Switch */
.switch {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 26px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-tertiary);
  transition: .4s;
}

.slider.round {
  border-radius: 26px;
}

.slider::before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 4px;
  bottom: 4px;
  background-color: var(--text-primary);
  transition: .4s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--accent-primary);
}

input:focus + .slider {
  box-shadow: 0 0 1px var(--accent-primary);
}

input:checked + .slider::before {
  transform: translateX(24px);
}


/* Alerts */
.alert {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border-left: 4px solid transparent;
  margin-top: var(--space-md);
  margin-bottom: var(--space-md);
  font-size: var(--font-size-sm);
}

.alert-warning {
  background-color: rgba(245, 158, 11, 0.1);
  border-left-color: var(--color-warning);
  color: var(--color-warning);
}

.alert-info {
  background-color: rgba(59, 130, 246, 0.1);
  border-left-color: var(--color-info);
  color: var(--color-info);
}

.alert-success {
  background-color: rgba(34, 197, 94, 0.1);
  border-left-color: var(--color-success);
  color: var(--color-success);
}

.alert-error {
  background-color: rgba(239, 68, 68, 0.1);
  border-left-color: var(--color-error);
  color: var(--color-error);
}


/* Filter Bar */
.filter-bar {
  display: flex;
  gap: var(--space-md);
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}


/* Utility Classes */
.text-secondary {
  color: var(--text-secondary);
}

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

.text-error {
  color: var(--color-error);
}

.text-success {
  color: var(--color-success);
}

.text-warning {
  color: var(--color-warning);
}

.text-sm {
  font-size: var(--font-size-sm);
}

.text-xs {
  font-size: var(--font-size-xs);
}

.text-lg {
  font-size: var(--font-size-lg);
}

.text-center {
  text-align: center;
}

.font-mono {
  font-family: var(--font-mono);
}

.font-bold {
  font-weight: 700;
}

.hidden {
  display: none !important;
}

.flex-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.flex-wrap {
  flex-wrap: wrap;
}

.align-center {
  align-items: center;
}

.gap-1 {
  gap: 0.25rem;
}

.gap-2 {
  gap: 0.5rem;
}

.gap-3 {
  gap: 0.75rem;
}

.gap-4 {
  gap: 1rem;
}

.mb-0 {
  margin-bottom: 0;
}

.mb-1 {
  margin-bottom: 0.25rem;
}

.mb-2 {
  margin-bottom: 0.5rem;
}

.mb-3 {
  margin-bottom: 0.75rem;
}

.mb-4 {
  margin-bottom: 1rem;
}

.mt-1 {
  margin-top: 0.25rem;
}

.mt-2 {
  margin-top: 0.5rem;
}

.mt-3 {
  margin-top: 0.75rem;
}

.mt-4 {
  margin-top: 1rem;
}