:root {
  --bg-app: #090d16;
  --bg-sidebar: #0f1523;
  --bg-card: #131c2e;
  --bg-card-hover: #19243b;
  --bg-input: #0b111e;
  --border-color: #212e47;
  --border-subtle: #192337;

  --text-main: #f1f5f9;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --primary-glow: rgba(59, 130, 246, 0.15);

  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.12);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.12);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.12);
  --info: #06b6d4;
  --info-bg: rgba(6, 182, 212, 0.12);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-app);
  color: var(--text-main);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

code, pre {
  font-family: 'JetBrains Mono', monospace;
}

/* App Layout */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  padding: 20px 16px;
  flex-shrink: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 16px;
}

.brand-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #2563eb, #3b82f6);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 0 16px var(--primary-glow);
}

.brand-text h2 {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  text-align: left;
  width: 100%;
}

.nav-item:hover {
  background: var(--bg-card);
  color: var(--text-main);
}

.nav-item.active {
  background: var(--primary-glow);
  color: var(--primary);
  border-color: rgba(59, 130, 246, 0.3);
  font-weight: 600;
}

.nav-item .counter {
  margin-left: auto;
  background: var(--bg-app);
  color: var(--text-muted);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 20px;
}

.nav-item.active .counter {
  background: var(--primary);
  color: #fff;
}

.sidebar-footer {
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.key-box, .endpoint-box {
  background: var(--bg-card);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.key-box .label, .endpoint-box .label {
  display: block;
  font-size: 10px;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.key-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  color: var(--primary);
  cursor: pointer;
  word-break: break-all;
}

.endpoint-box code {
  font-size: 11px;
  color: var(--success);
}

/* Main Body */
.main-body {
  flex: 1;
  padding: 20px 28px;
  overflow-y: auto;
}

/* Topbar */
.topbar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 14px 18px;
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.metric-title {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 600;
  letter-spacing: 0.04em;
}

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

.metric-val {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.currency-select-inline {
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--primary);
  font-size: 13px;
  font-weight: 700;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  outline: none;
  cursor: pointer;
  width: 100%;
}
.currency-select-inline:focus {
  border-color: var(--primary);
}

.input-with-addon {
  display: flex;
  align-items: center;
}
.input-with-addon .addon {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-left: none;
  padding: 8px 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-dim);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}
.input-with-addon .text-input {
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
}

.btn-icon-tiny {
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 13px;
  opacity: 0.6;
  transition: opacity 0.15s;
}
.btn-icon-tiny:hover {
  opacity: 1;
}

/* Section Header */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.section-header h1 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.subtitle {
  font-size: 12px;
  color: var(--text-muted);
}

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

/* Batch Toolbar */
.batch-bar {
  background: var(--bg-card);
  border: 1px solid var(--primary);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 0 16px var(--primary-glow);
  animation: fadeIn 0.15s ease;
}

.batch-info {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
}

.batch-actions {
  display: flex;
  gap: 8px;
}

/* Tab contents */
.tab-content {
  display: none;
  animation: fadeIn 0.15s ease;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Cards & Tables */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.card-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-header h3 {
  font-size: 14px;
  font-weight: 600;
}

.card-body {
  padding: 18px;
}

.stat-box {
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-num {
  font-size: 24px;
  font-weight: 700;
}

.table-container {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 12.5px;
}

.data-table th {
  background: rgba(11, 17, 30, 0.6);
  padding: 10px 14px;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.data-table td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--border-subtle);
  vertical-align: middle;
}

.data-table tr:hover td {
  background: rgba(25, 36, 59, 0.4);
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 7px;
  border-radius: 4px;
  font-size: 10.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge-subtle {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
}

.badge-pending {
  background: var(--warning-bg);
  color: var(--warning);
}

.badge-inprogress {
  background: var(--info-bg);
  color: var(--info);
}

.badge-processing {
  background: rgba(99, 102, 241, 0.15);
  color: #818cf8;
}

.badge-completed {
  background: var(--success-bg);
  color: var(--success);
}

.badge-partial {
  background: rgba(249, 115, 22, 0.15);
  color: #fb923c;
}

.badge-canceled {
  background: var(--danger-bg);
  color: var(--danger);
}

.badge-success {
  background: var(--success-bg);
  color: var(--success);
}

.badge-info {
  background: var(--info-bg);
  color: var(--info);
}

/* Forms & Inputs */
.form-group {
  margin-bottom: 14px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  margin-bottom: 4px;
  color: var(--text-main);
}

.form-hint {
  display: block;
  font-size: 11px;
  color: var(--text-dim);
  margin-top: 4px;
}

.text-input, .select-input {
  width: 100%;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  color: var(--text-main);
  font-size: 12.5px;
  outline: none;
  transition: border-color 0.15s;
}

.text-input:focus, .select-input:focus {
  border-color: var(--primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s;
}

.btn-sm {
  padding: 4px 10px;
  font-size: 11.5px;
}

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

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

.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover {
  background: #dc2626;
}

.btn-danger-outline {
  background: transparent;
  color: var(--danger);
  border-color: rgba(239, 68, 68, 0.4);
}
.btn-danger-outline:hover {
  background: var(--danger-bg);
}

.btn-action-sm {
  padding: 3px 7px;
  font-size: 11px;
  border-radius: 4px;
  background: var(--bg-app);
  color: var(--text-muted);
  border: 1px solid var(--border-color);
  cursor: pointer;
}
.btn-action-sm:hover {
  color: var(--text-main);
  border-color: var(--primary);
}

/* Grids */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 14px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

@media (max-width: 1024px) {
  .grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
  }
  .app-layout {
    flex-direction: column;
  }
  .sidebar {
    width: 100%;
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
}

/* Code Previews */
.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
  font-size: 11px;
  color: var(--text-muted);
}

.btn-copy {
  background: var(--bg-app);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 2px 7px;
  font-size: 10.5px;
  border-radius: 4px;
  cursor: pointer;
}
.btn-copy:hover {
  color: var(--text-main);
}

.code-preview {
  background: #070a11;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  overflow-x: auto;
  font-size: 11.5px;
  color: #38bdf8;
  max-height: 240px;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 520px;
  box-shadow: var(--shadow);
  animation: modalScale 0.15s ease;
}

@keyframes modalScale {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.btn-close {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 18px;
  cursor: pointer;
}

.modal-body {
  padding: 18px;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 16px;
}

.form-checkboxes {
  display: flex;
  gap: 14px;
  margin: 10px 0;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--text-muted);
  cursor: pointer;
}

/* Utility */
.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-info { color: var(--info); }
.text-muted { color: var(--text-muted); }
.text-dim { color: var(--text-dim); }
.text-sm { font-size: 11px; }
.text-center { text-align: center; }
.py-3 { padding-top: 12px; padding-bottom: 12px; }
.py-4 { padding-top: 16px; padding-bottom: 16px; }
.mt-2 { margin-top: 8px; }
.mt-3 { margin-top: 12px; }
.mb-4 { margin-bottom: 16px; }
.p-0 { padding: 0 !important; }
.divider { border: none; border-top: 1px solid var(--border-subtle); margin: 18px 0; }

/* Toast Notifications */
#toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 2000;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 9px 14px;
  border-radius: var(--radius-sm);
  font-size: 12.5px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  gap: 8px;
  animation: slideToast 0.2s ease;
}

@keyframes slideToast {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}