:root {
  --bg-primary: #f8fafc;
  --surface: #ffffff;
  --border: #e2e8f0;
  --border-focus: #3b82f6;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-dim: #94a3b8;
  --accent-blue: #2563eb;
  --accent-green: #10b981;
  --accent-purple: #7c3aed;
  --accent-red: #ef4444;
  --accent-yellow: #f59e0b;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.06);
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  padding: 24px;
}

.app-container {
  max-width: 1440px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Header */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 28px;
  box-shadow: var(--shadow-sm);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo-badge {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, #2563eb, #10b981);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

.brand-text h1 {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 8px;
}

.brand-text .tag {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  background: #eff6ff;
  color: var(--accent-blue);
  padding: 2px 8px;
  border-radius: 6px;
  border: 1px solid #bfdbfe;
}

.subtitle {
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

.header-badges {
  display: flex;
  gap: 10px;
}

.badge {
  font-size: 12px;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: #f1f5f9;
}

.badge.nvidia { background: #f0fdf4; border-color: #bbf7d0; color: #166534; }
.badge.nebius { background: #faf5ff; border-color: #e9d5ff; color: #6b21a8; }
.badge.tavily { background: #eff6ff; border-color: #bfdbfe; color: #1e40af; }

/* Grid Layout */
.workspace-grid {
  display: grid;
  grid-template-columns: 480px 1fr;
  gap: 20px;
}

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

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

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

.card-header h2 {
  font-size: 15px;
  font-weight: 700;
}

.status-indicator {
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 12px;
  background: #f1f5f9;
  color: var(--text-muted);
}

.status-indicator.running {
  background: #fef3c7;
  color: #92400e;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

/* Control Panel */
.control-panel {
  padding: 20px;
  gap: 18px;
}

.prompt-box-wrapper label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  display: block;
  margin-bottom: 8px;
}

textarea {
  width: 100%;
  padding: 14px;
  font-family: var(--font-sans);
  font-size: 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: #fdfdfd;
  resize: vertical;
  outline: none;
  transition: border-color 0.15s ease;
}

textarea:focus {
  border-color: var(--border-focus);
  background: #ffffff;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.presets-container {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.presets-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-dim);
  text-transform: uppercase;
}

.presets-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip {
  background: #f8fafc;
  border: 1px solid var(--border);
  padding: 6px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  transition: all 0.15s ease;
}

.chip:hover {
  background: #eff6ff;
  border-color: #bfdbfe;
  color: var(--accent-blue);
}

.action-row {
  display: flex;
  gap: 12px;
}

.btn {
  padding: 12px 20px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.15s ease;
}

.btn-primary {
  flex: 1;
  background: var(--accent-blue);
  color: #fff;
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover:not(:disabled) {
  background: #1d4ed8;
}

.btn-secondary {
  background: #f1f5f9;
  color: var(--text-main);
  border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
  background: #e2e8f0;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Terminal */
.terminal-container {
  background: #0f172a;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  height: 230px;
}

.terminal-header {
  background: #1e293b;
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.terminal-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.terminal-dot.red { background: #ef4444; }
.terminal-dot.yellow { background: #f59e0b; }
.terminal-dot.green { background: #10b981; }

.terminal-title {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: #94a3b8;
}

.terminal-body {
  padding: 12px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: #f8fafc;
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.log-line.dim { color: #64748b; }
.log-line.green { color: #34d399; font-weight: 600; }
.log-line.yellow { color: #fbbf24; }
.log-line.red { color: #f87171; }

/* Results Panel */
.tabs-header {
  background: #f8fafc;
  padding: 10px 16px;
}

.tabs-list {
  display: flex;
  gap: 6px;
  overflow-x: auto;
}

.tab-btn {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  padding: 6px 14px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--text-main);
}

.tab-btn.active {
  background: #ffffff;
  border-color: var(--border);
  color: var(--accent-blue);
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.test-pill {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 12px;
  background: #f1f5f9;
  color: var(--text-muted);
}

.test-pill .pill-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #94a3b8;
}

.test-pill.passed {
  background: #ecfdf5;
  color: #065f46;
}
.test-pill.passed .pill-dot { background: #10b981; }

.test-pill.failed {
  background: #fef2f2;
  color: #991b1b;
}
.test-pill.failed .pill-dot { background: #ef4444; }

.code-viewer {
  flex: 1;
  background: #ffffff;
  padding: 20px;
  overflow: auto;
  height: 480px;
}

pre {
  margin: 0;
}

code {
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  color: #1e293b;
  white-space: pre-wrap;
}

.test-summary-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  background: #f8fafc;
  display: flex;
  gap: 24px;
}

.summary-stat {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
}

.stat-label {
  color: var(--text-muted);
  font-weight: 500;
}

.stat-value {
  font-weight: 700;
  color: var(--text-main);
}