/* ==========================================================================
   UI Components (Buttons, Badges, KPIs, Tables, Charts, Modals, Toasts)
   ========================================================================== */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid transparent;
  text-decoration: none;
  font-family: inherit;
}

.btn-primary {
  background-color: var(--accent);
  color: #14100d;
  border-color: var(--accent);
  font-weight: 600;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  box-shadow: 0 0 12px var(--accent-glow);
}

.btn-secondary {
  background-color: var(--surface-card);
  color: var(--text);
  border-color: var(--border);
}

.btn-secondary:hover {
  background-color: var(--surface-hover);
  border-color: var(--accent);
}

.btn-danger {
  background-color: var(--danger-bg);
  color: var(--danger);
  border-color: rgba(248, 113, 113, 0.3);
}

.btn-danger:hover {
  background-color: var(--danger);
  color: #fff;
}

.btn-sm {
  padding: 5px 10px;
  font-size: 12px;
  border-radius: 4px;
}

.btn-icon {
  padding: 6px 10px;
  border-radius: 6px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  cursor: pointer;
}

.btn-icon:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--surface-hover);
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: 9999px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-success { background: var(--success-bg); color: var(--success); border: 1px solid rgba(74, 222, 128, 0.2); }
.badge-danger { background: var(--danger-bg); color: var(--danger); border: 1px solid rgba(248, 113, 113, 0.2); }
.badge-warning { background: var(--warning-bg); color: var(--warning); border: 1px solid rgba(251, 191, 36, 0.2); }
.badge-info { background: var(--info-bg); color: var(--info); border: 1px solid rgba(96, 165, 250, 0.2); }
.badge-accent { background: var(--accent-dim); color: var(--accent); border: 1px solid rgba(230, 179, 92, 0.3); }

/* Form Controls */
.form-group {
  margin-bottom: 14px;
}

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  padding: 9px 12px;
  background-color: var(--bg-darker);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s;
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

/* KPI Cards Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.kpi-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  position: relative;
  overflow: hidden;
  transition: transform 0.15s, border-color 0.15s;
}

.kpi-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.kpi-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.5;
}

.kpi-title {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.kpi-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  font-family: var(--font-mono);
  letter-spacing: -0.02em;
}

.kpi-subtitle {
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 4px;
}

/* Chart Cards Grid */
.charts-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

.chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
}

.chart-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.chart-title {
  font-size: 14px;
  font-weight: 600;
}

.chart-container {
  position: relative;
  flex: 1;
  min-height: 260px;
  max-height: 320px;
}

/* Filter Bar */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.filter-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.btn-group {
  display: inline-flex;
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 2px;
}

.btn-group .btn-toggle {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 500;
  border-radius: 4px;
  cursor: pointer;
}

.btn-group .btn-toggle.active {
  background: var(--accent);
  color: #14100d;
  font-weight: 600;
}

/* Tables */
.table-container {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
  margin-bottom: 20px;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13px;
}

th {
  background: var(--surface-card);
  color: var(--text-muted);
  font-weight: 600;
  font-size: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
  user-select: none;
}

th.sortable {
  cursor: pointer;
}

th.sortable:hover {
  color: var(--accent);
}

td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
  color: var(--text);
  white-space: nowrap;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background: var(--surface-hover);
}

/* Modals */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  padding: 20px;
}

.modal-backdrop.show {
  opacity: 1;
  pointer-events: auto;
}

.modal-dialog {
  width: 100%;
  max-width: 500px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  transform: scale(0.95);
  transition: transform 0.2s ease;
}

.modal-backdrop.show .modal-dialog {
  transform: scale(1);
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 15px;
  font-weight: 600;
}

.modal-body {
  padding: 20px;
  max-height: 75vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  background: var(--surface-card);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

/* Toast Notifications */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 360px;
  pointer-events: none;
}

.toast {
  background: var(--surface-card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  box-shadow: var(--shadow);
  color: var(--text);
  font-size: 13px;
  pointer-events: auto;
  animation: slideIn 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.toast-success { border-left-color: var(--success); }
.toast-danger { border-left-color: var(--danger); }
.toast-warning { border-left-color: var(--warning); }
.toast-info { border-left-color: var(--info); }

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

/* Key Display Box */
.key-display-box {
  background: var(--bg-darker);
  border: 1px dashed var(--accent);
  border-radius: var(--radius-sm);
  padding: 14px;
  margin: 14px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.key-display-text {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--accent);
  word-break: break-all;
}

/* Loading Spinner */
.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(230, 179, 92, 0.2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
  vertical-align: middle;
}

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

.hamburger-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  color: var(--text);
  cursor: pointer;
}