:root {
  --bg-color: #0b0f19;
  --panel-bg: #151b2c;
  --border-color: #222e4a;
  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --primary-color: #3b82f6;
  --primary-hover: #2563eb;
  --primary-glow: rgba(59, 130, 246, 0.15);
  --success-color: #10b981;
  --success-hover: #059669;
  --warning-color: #f59e0b;
  --warning-hover: #d97706;
  --danger-color: #ef4444;
  --danger-hover: #dc2626;
  --input-bg: #1e293b;
  --input-border: #334155;
  --font-family: 'Inter', sans-serif;
  --border-radius: 12px;
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 14px;
  line-height: 1.5;
  padding: 24px;
}

.app-container {
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background-color: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--primary-color), #8b5cf6);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.logo-icon i {
  width: 26px;
  height: 26px;
}

.logo-text h1 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.logo-text p {
  font-size: 12px;
  color: var(--text-secondary);
}

.system-status {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  padding: 8px 16px;
  border-radius: 30px;
  font-weight: 500;
  font-size: 13px;
  color: var(--success-color);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.status-dot.online {
  background-color: var(--success-color);
  box-shadow: 0 0 8px var(--success-color);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.9); opacity: 0.6; }
  50% { transform: scale(1.1); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.6; }
}

/* App Grid Layout */
.app-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 24px;
}

@media (max-width: 1024px) {
  .app-grid {
    grid-template-columns: 1fr;
  }
}

/* Panel Design */
.panel {
  background-color: var(--panel-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: 24px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 14px;
}

.panel-header i {
  color: var(--primary-color);
  width: 20px;
  height: 20px;
}

.panel-header h2 {
  font-size: 16px;
  font-weight: 600;
}

/* Forms and Inputs */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-weight: 500;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 6px;
}

.tooltip {
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  color: var(--text-secondary);
}

.tooltip i {
  width: 14px;
  height: 14px;
}

textarea {
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: 'Courier New', Courier, monospace;
  font-size: 12px;
  padding: 12px;
  resize: vertical;
  transition: all 0.2s ease;
}

textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.control-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

select {
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 8px;
  color: var(--text-primary);
  padding: 10px 14px;
  font-size: 14px;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.2s ease;
}

select:focus {
  outline: none;
  border-color: var(--primary-color);
}

.helper-text {
  font-size: 12px;
  color: var(--text-secondary);
}

#headers-status {
  font-weight: 500;
  transition: color 0.2s;
}

#headers-status.valid {
  color: var(--success-color);
}

#headers-status.invalid {
  color: var(--danger-color);
}

/* Slider */
.slider-header {
  display: flex;
  justify-content: space-between;
  font-weight: 500;
}

#delay-val {
  color: var(--warning-color);
  font-weight: 700;
}

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  background: var(--border-color);
  border-radius: 3px;
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary-color);
  cursor: pointer;
  transition: transform 0.1s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* Buttons */
.action-buttons {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 12px;
  margin-top: 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  color: #fff;
}

.btn i {
  width: 16px;
  height: 16px;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--primary-color);
}
.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-hover);
}

.btn-warning {
  background-color: var(--warning-color);
}
.btn-warning:hover:not(:disabled) {
  background-color: var(--warning-hover);
}

.btn-danger {
  background-color: var(--danger-color);
}
.btn-danger:hover:not(:disabled) {
  background-color: var(--danger-hover);
}

.btn-success {
  background-color: var(--success-color);
}
.btn-success:hover:not(:disabled) {
  background-color: var(--success-hover);
}

/* Panel Status: Statistics */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.stat-card {
  background-color: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  min-height: 90px;
}

.stat-card.full-width {
  grid-column: span 2;
}

.stat-title {
  font-size: 12px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 4px;
}

.stat-value {
  font-size: 28px;
  font-weight: 700;
  color: #fff;
}

.stat-value-desc {
  font-size: 15px;
  font-weight: 600;
  color: var(--primary-color);
  margin-top: 4px;
}

.stat-unit {
  font-size: 11px;
  color: var(--text-secondary);
}

/* Progress Section */
.progress-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: rgba(255, 255, 255, 0.01);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
}

.progress-meta {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
}

.countdown-highlight {
  color: var(--warning-color);
  font-weight: 600;
}

.progress-bar-container {
  width: 100%;
  height: 8px;
  background-color: var(--border-color);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary-color), var(--success-color));
  border-radius: 4px;
  transition: width 0.3s ease;
}

/* Log Container */
.log-container {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  height: 195px;
  background-color: #060913;
}

.log-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background-color: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--border-color);
  font-weight: 600;
  font-size: 12px;
  color: var(--text-secondary);
}

.btn-clear-logs {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 11px;
  cursor: pointer;
  text-decoration: underline;
}

.btn-clear-logs:hover {
  color: #fff;
}

.log-content {
  flex: 1;
  padding: 12px;
  overflow-y: auto;
  font-family: 'Courier New', Courier, monospace;
  font-size: 11.5px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.log-line {
  line-height: 1.4;
}
.log-line.info { color: #3b82f6; }
.log-line.success { color: #10b981; }
.log-line.warning { color: #f59e0b; }
.log-line.error { color: #ef4444; }

/* Table Panel */
.panel-table {
  grid-column: span 2;
  overflow: hidden;
}

@media (max-width: 1024px) {
  .panel-table {
    grid-column: span 1;
  }
}

.table-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 16px;
}

.table-title {
  display: flex;
  align-items: center;
  gap: 10px;
}

.table-title h2 {
  font-size: 16px;
  font-weight: 600;
}

.badge {
  background-color: var(--border-color);
  color: var(--text-secondary);
  padding: 4px 8px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
}

.table-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-box i {
  position: absolute;
  left: 12px;
  width: 16px;
  height: 16px;
  color: var(--text-secondary);
}

.search-box input {
  background-color: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 8px;
  color: var(--text-primary);
  padding: 8px 12px 8px 36px;
  font-size: 13px;
  width: 250px;
  transition: all 0.2s ease;
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary-color);
  width: 300px;
}

/* Table Design */
.table-wrapper {
  overflow-x: auto;
  max-height: 400px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th, td {
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
  font-size: 13px;
}

th {
  background-color: #151b2c; /* Sử dụng màu nền đặc để che chữ khi cuộn */
  box-shadow: inset 0 -1px 0 var(--border-color); /* Giữ đường kẻ ngăn cách dưới chân header */
  font-weight: 600;
  color: var(--text-secondary);
  position: sticky;
  top: 0;
  z-index: 10;
}

tbody tr {
  transition: background-color 0.15s ease;
}

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

tbody tr.empty-row td {
  text-align: center;
  color: var(--text-secondary);
  padding: 40px 0;
}

/* Status Badge inside table */
.status-badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 600;
}

.status-badge.completed {
  background-color: rgba(16, 185, 129, 0.15);
  color: var(--success-color);
}
.status-badge.processing {
  background-color: rgba(59, 130, 246, 0.15);
  color: var(--primary-color);
}
.status-badge.error {
  background-color: rgba(239, 68, 68, 0.15);
  color: var(--danger-color);
}