:root {
  --bg-dark: #0b0f19;
  --bg-card: rgba(18, 24, 38, 0.75);
  --bg-card-hover: rgba(28, 36, 56, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-focus: rgba(99, 102, 241, 0.5);
  
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.25);
  --accent: #10b981;
  --accent-hover: #059669;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #06b6d4;

  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-sub: #64748b;

  --sidebar-w: 260px;
  --radius: 14px;
  --shadow: 0 12px 36px rgba(0, 0, 0, 0.4);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Ambient glow */
.glow-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(140px);
  z-index: 0;
  pointer-events: none;
}
.orb-1 {
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.18), transparent 70%);
  top: -100px;
  right: -50px;
}
.orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.12), transparent 70%);
  bottom: -150px;
  left: 150px;
}

.app-layout {
  display: flex;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-w);
  background: rgba(11, 15, 25, 0.95);
  backdrop-filter: blur(16px);
  border-right: 1px solid var(--border-color);
  padding: 24px 16px;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 20px;
}

.logo-badge {
  font-size: 28px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(16, 185, 129, 0.2));
  border: 1px solid var(--border-color);
  padding: 6px;
  border-radius: 12px;
}

.brand-text h2 {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.3px;
}
.brand-text .sub-badge {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
}

.nav-menu {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.nav-section-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.8px;
  text-transform: uppercase;
  padding: 12px 14px 4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-section-title.mt-3 {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed var(--border-color);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 10px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
}

.nav-item .icon {
  font-size: 18px;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
}

.nav-item.active {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  box-shadow: 0 4px 16px var(--primary-glow);
}

.sidebar-footer {
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 10px;
}

.pulse-dot {
  width: 10px;
  height: 10px;
  background-color: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.status-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-main);
}
.sidebar-footer small {
  font-size: 11px;
  color: var(--text-sub);
}

/* Main Content */
.main-content {
  flex: 1;
  padding: 32px 40px;
  max-width: 1300px;
  margin: 0 auto;
}

.top-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
}

.header-left h1 {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.5px;
}
.header-left p {
  color: var(--text-muted);
  font-size: 14px;
  margin-top: 4px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px var(--primary-glow);
}
.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
}

.btn-accent {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #fff;
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.35);
}
.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(16, 185, 129, 0.45);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}
.btn-ghost:hover {
  color: var(--text-main);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 12px;
}
.btn-lg {
  padding: 14px 28px;
  font-size: 16px;
  font-weight: 700;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(18, 24, 38, 0.95);
  border: 1px solid var(--border-color);
  padding: 14px 20px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  z-index: 100;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 14px;
  font-weight: 500;
}
.toast.toast-success {
  border-left: 4px solid var(--accent);
}
.toast.toast-error {
  border-left: 4px solid var(--danger);
}
.toast.hidden {
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
}

/* Tab Panes */
.tab-pane {
  display: none;
  animation: fadeIn 0.25s ease forwards;
}
.tab-pane.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Cards & Layout */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

.card-header {
  margin-bottom: 20px;
}
.card-header h3 {
  font-size: 18px;
  font-weight: 700;
}

.two-col-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

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

/* Forms */
.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--text-main);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s ease;
}
.form-control:focus {
  border-color: var(--border-focus);
}

.code-editor {
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  line-height: 1.6;
  resize: vertical;
}

.font-mono {
  font-family: 'JetBrains Mono', monospace;
}

.help-text {
  display: block;
  font-size: 12px;
  color: var(--text-sub);
  margin-top: 6px;
}
.help-text code {
  background: rgba(255, 255, 255, 0.08);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--info);
}

.range-slider {
  width: 100%;
  accent-color: var(--primary);
}

.highlight {
  color: var(--primary);
  font-weight: 700;
}

.variables-tag-list {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}
.tag-badge {
  background: rgba(99, 102, 241, 0.15);
  color: #a5b4fc;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  padding: 4px 8px;
  border-radius: 6px;
  border: 1px solid rgba(99, 102, 241, 0.3);
}

/* Switch Toggle Controls */
.switch-group {
  margin-bottom: 20px;
}

.switch-label {
  display: inline-flex !important;
  align-items: center !important;
  gap: 14px !important;
  font-size: 14px !important;
  font-weight: 500 !important;
  color: var(--text-main) !important;
  cursor: pointer !important;
  margin-bottom: 0 !important;
  user-select: none !important;
  position: relative !important;
}

.switch-label input[type="checkbox"] {
  position: absolute !important;
  opacity: 0 !important;
  width: 0 !important;
  height: 0 !important;
  margin: 0 !important;
  padding: 0 !important;
  pointer-events: none !important;
}

.slider-toggle {
  display: inline-block !important;
  position: relative !important;
  flex-shrink: 0 !important;
  width: 46px !important;
  height: 26px !important;
  background: rgba(255, 255, 255, 0.16) !important;
  border: 1px solid rgba(255, 255, 255, 0.2) !important;
  border-radius: 20px !important;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1) !important;
  box-sizing: border-box !important;
  cursor: pointer !important;
}

.slider-toggle::after {
  content: '' !important;
  position: absolute !important;
  width: 18px !important;
  height: 18px !important;
  background: #ffffff !important;
  border-radius: 50% !important;
  top: 3px !important;
  left: 3px !important;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1) !important;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.4) !important;
}

.switch-label input:checked + .slider-toggle {
  background: var(--accent) !important;
  border-color: var(--accent) !important;
  box-shadow: 0 0 12px rgba(16, 185, 129, 0.45) !important;
}

.switch-label input:checked + .slider-toggle::after {
  transform: translateX(20px) !important;
}

.switch-text {
  color: var(--text-main);
  line-height: 1.4;
  font-size: 13.5px;
}

/* Toolbar & Channels Grid */
.toolbar-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 8px 12px;
  flex: 1;
}
.search-box input {
  background: transparent;
  border: none;
  color: #fff;
  outline: none;
  width: 100%;
}

.filter-group {
  display: flex;
  gap: 4px;
}
.filter-btn {
  padding: 6px 14px;
  border-radius: 6px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
}
.filter-btn.active {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border-color: var(--border-color);
}

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

/* Channel Table Format */
.channel-table-card {
  padding: 0;
  overflow: hidden;
}

.channel-table {
  width: 100%;
  border-collapse: collapse;
}

.channel-table th {
  padding: 14px 16px;
  background: rgba(0, 0, 0, 0.3);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
}

.channel-table td {
  padding: 12px 16px;
  vertical-align: middle;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.channel-row {
  transition: background-color 0.2s ease;
}
.channel-row:hover {
  background-color: rgba(255, 255, 255, 0.03);
}
.channel-row.row-disabled {
  opacity: 0.55;
}

.table-switch {
  display: inline-flex !important;
  margin: 0 auto;
}
.table-switch .slider-toggle {
  width: 38px !important;
  height: 22px !important;
}
.table-switch .slider-toggle::after {
  width: 14px !important;
  height: 14px !important;
  top: 3px !important;
  left: 3px !important;
}
.table-switch input:checked + .slider-toggle::after {
  transform: translateX(16px) !important;
}

.channel-name-cell {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.channel-title-line {
  display: flex;
  align-items: center;
  gap: 8px;
}

.channel-name-text {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
}

.channel-id-text {
  font-size: 11px;
  color: var(--text-sub);
}
.channel-id-text code {
  color: var(--text-muted);
}

.channel-badge-type {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 6px;
}
.type-public {
  background: rgba(6, 182, 212, 0.15);
  color: #67e8f9;
}
.type-private {
  background: rgba(245, 158, 11, 0.15);
  color: #fde68a;
}

.channel-stats-compact {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 12px;
  color: var(--text-sub);
}

.table-input {
  background: rgba(0, 0, 0, 0.25) !important;
  border: 1px solid var(--border-color) !important;
  padding: 8px 12px !important;
  font-size: 13px !important;
  border-radius: 6px !important;
  width: 100% !important;
  color: var(--text-main) !important;
}
.table-input:focus {
  border-color: var(--border-focus) !important;
  background: rgba(0, 0, 0, 0.45) !important;
}

.btn-quick-test {
  padding: 6px 12px;
  font-size: 12px;
}

/* Instant Run Banner */
.instant-run-banner {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(16, 185, 129, 0.15));
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius);
  padding: 28px 36px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.banner-content h2 {
  font-size: 20px;
  margin-bottom: 6px;
}
.banner-content p {
  color: var(--text-muted);
  font-size: 14px;
}

/* Step Progress UI */
.step-progress-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 20px 0;
  padding: 0 10px;
}
.step-node {
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  transition: all 0.3s ease;
}
.step-node.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 14px var(--primary-glow);
}
.step-node.completed {
  background: rgba(16, 185, 129, 0.2);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.4);
}
.step-line {
  flex: 1;
  height: 2px;
  background: var(--border-color);
  margin: 0 8px;
}

.live-console {
  background: #060911;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 16px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  color: #38bdf8;
  max-height: 180px;
  overflow-y: auto;
  line-height: 1.6;
}

/* Test Studio Form */
.test-form-row {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.flex-1 { flex: 1; }
.flex-2 { flex: 2; }
.align-end { align-self: flex-end; margin-bottom: 18px; }

.test-result-container {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
}
.markdown-preview-box {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 20px;
  margin-top: 12px;
  line-height: 1.7;
  font-size: 14px;
  white-space: pre-wrap;
}

/* Stats Row */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.stat-icon {
  font-size: 32px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 12px;
}
.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 500;
}
.stat-info h3 {
  font-size: 22px;
  font-weight: 800;
  margin-top: 4px;
}

/* Tables */
.table-container {
  overflow-x: auto;
}
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.data-table th {
  text-align: left;
  padding: 12px 14px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-color);
  font-weight: 600;
}
.data-table td {
  padding: 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}
.data-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 700;
}
.badge-success { background: rgba(16, 185, 129, 0.2); color: #34d399; }
.badge-fail { background: rgba(239, 68, 68, 0.2); color: #f87171; }
.badge-info { background: rgba(6, 182, 212, 0.2); color: #67e8f9; }
.badge-partial { background: rgba(245, 158, 11, 0.2); color: #fde68a; }

.hidden { display: none !important; }
.mt-4 { margin-top: 24px; }
.text-center { text-align: center; }

/* Login Modal Overlay */
.login-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(7, 10, 19, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 99999;
}

.login-card {
  width: 100%;
  max-width: 440px;
  background: rgba(18, 24, 38, 0.95);
  border: 1px solid rgba(99, 102, 241, 0.3);
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6), 0 0 40px rgba(99, 102, 241, 0.15);
  border-radius: 20px;
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  animation: modalPop 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes modalPop {
  0% { transform: scale(0.95); opacity: 0; }
  100% { transform: scale(1); opacity: 1; }
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 8px;
}

.login-brand .logo-badge {
  font-size: 32px;
}

.login-brand h2 {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
}

.login-brand p {
  font-size: 13px;
  color: var(--text-muted);
}

.login-error-alert {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #fca5a5;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 13px;
  display: none;
}

.user-profile-widget {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  border-radius: 10px;
}

.user-profile-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-main);
}

.btn-logout {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-logout:hover {
  background: rgba(239, 68, 68, 0.3);
  color: #fff;
}