:root {
  --primary: #1a56db;
  --primary-light: #e1effe;
  --success: #059669;
  --success-light: #d1fae5;
  --danger: #dc2626;
  --danger-light: #fee2e2;
  --warning: #d97706;
  --warning-light: #fef3c7;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-500: #6b7280;
  --gray-700: #374151;
  --gray-900: #111827;
  --bg: #f0f2f5;
  --card-bg: #ffffff;
  --font: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'Cascadia Code', 'Fira Code', 'JetBrains Mono', monospace;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font); background: var(--bg); color: var(--gray-900); min-height: 100vh; }

/* Header */
header {
  background: linear-gradient(135deg, #1e3a5f 0%, #1a56db 100%);
  color: white;
  padding: 16px 24px;
  box-shadow: var(--shadow-lg);
}
.header-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.logo { display: flex; align-items: center; gap: 12px; }
.logo-icon {
  width: 48px; height: 48px;
  background: rgba(255,255,255,0.2);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 1px;
}
.logo h1 { font-size: 20px; font-weight: 700; }
.subtitle { font-size: 12px; opacity: 0.8; }
.header-status { display: flex; align-items: center; gap: 12px; }
.uptime { font-size: 12px; opacity: 0.7; font-family: var(--mono); }

/* Badges */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge-nominal { background: var(--success-light); color: var(--success); }
.badge-timeout, .badge-degraded { background: var(--warning-light); color: var(--warning); }
.badge-error_500, .badge-circuit_open, .badge-maintenance, .badge-partial_failure {
  background: var(--danger-light); color: var(--danger);
}
.badge-success { background: var(--success-light); color: var(--success); }
.badge-error { background: var(--danger-light); color: var(--danger); }

/* Main */
main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

/* Panels */
.panel {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow);
}
.panel h2 { font-size: 16px; font-weight: 600; margin-bottom: 16px; color: var(--gray-700); }

/* Controls */
.controls-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.control-group label { display: block; font-size: 13px; font-weight: 600; color: var(--gray-500); margin-bottom: 8px; }
.mode-buttons { display: flex; flex-wrap: wrap; gap: 8px; }
.mode-btn {
  padding: 8px 16px;
  border: 2px solid var(--gray-200);
  border-radius: 6px;
  background: white;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.2s;
  color: var(--gray-700);
}
.mode-btn:hover { border-color: var(--primary); color: var(--primary); }
.mode-btn.active { border-color: var(--primary); background: var(--primary-light); color: var(--primary); font-weight: 700; }
.mode-btn[data-mode="TIMEOUT"].active,
.mode-btn[data-mode="DEGRADED"].active { border-color: var(--warning); background: var(--warning-light); color: var(--warning); }
.mode-btn[data-mode="ERROR_500"].active,
.mode-btn[data-mode="CIRCUIT_OPEN"].active,
.mode-btn[data-mode="MAINTENANCE"].active,
.mode-btn[data-mode="PARTIAL_FAILURE"].active { border-color: var(--danger); background: var(--danger-light); color: var(--danger); }

.sliders { display: flex; gap: 24px; flex-wrap: wrap; }
.slider-row { flex: 1; min-width: 200px; }
.slider-row input[type="range"] { width: 100%; accent-color: var(--primary); }

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 12px;
}
.stat-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary);
}
.stat-card.stat-success { border-left-color: var(--success); }
.stat-card.stat-error { border-left-color: var(--danger); }
.stat-value { font-size: 28px; font-weight: 800; color: var(--gray-900); font-family: var(--mono); }
.stat-value small { font-size: 14px; font-weight: 400; }
.stat-label { font-size: 12px; color: var(--gray-500); margin-top: 4px; text-transform: uppercase; letter-spacing: 0.5px; }

/* Two columns */
.two-columns { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
@media (max-width: 1024px) { .two-columns { grid-template-columns: 1fr; } }

/* Tabs */
.tabs { display: flex; gap: 4px; margin-bottom: 16px; border-bottom: 2px solid var(--gray-200); }
.tab {
  padding: 8px 16px;
  border: none;
  background: none;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--gray-500);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all 0.2s;
}
.tab.active { color: var(--primary); border-bottom-color: var(--primary); font-weight: 600; }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* Forms */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; color: var(--gray-700); margin-bottom: 6px; }
select, input[type="text"], input[type="number"] {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--gray-300);
  border-radius: 6px;
  font-size: 13px;
  font-family: var(--font);
  background: white;
}
select:focus, input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(26,86,219,0.1); }
.acte-row {
  display: grid;
  grid-template-columns: 80px 1fr 100px 70px 50px;
  gap: 6px;
  margin-bottom: 6px;
}

/* Buttons */
.btn {
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.2s;
}
.btn-primary { background: var(--primary); color: white; }
.btn-primary:hover { background: #1e40af; }
.btn-small { padding: 6px 12px; font-size: 12px; background: var(--gray-100); color: var(--gray-700); }
.btn-small:hover { background: var(--gray-200); }
.btn-danger { background: var(--danger-light); color: var(--danger); }
.btn-danger:hover { background: #fecaca; }

/* Response Panel */
.response-panel {
  margin-top: 16px;
  border: 1px solid var(--gray-200);
  border-radius: 6px;
  overflow: hidden;
  display: none;
}
.response-panel.visible { display: block; }
.response-header {
  background: var(--gray-50);
  padding: 8px 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  border-bottom: 1px solid var(--gray-200);
}
.response-panel pre {
  padding: 12px;
  font-size: 12px;
  font-family: var(--mono);
  max-height: 400px;
  overflow: auto;
  background: var(--gray-900);
  color: #e5e7eb;
  white-space: pre-wrap;
  word-break: break-word;
}

/* Tables */
.table-wrapper { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th { text-align: left; padding: 10px 12px; background: var(--gray-50); color: var(--gray-500); font-weight: 600; font-size: 11px; text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 2px solid var(--gray-200); }
td { padding: 8px 12px; border-bottom: 1px solid var(--gray-100); vertical-align: middle; }
tr:hover td { background: var(--gray-50); }

.status-active { color: var(--success); font-weight: 600; }
.status-expired { color: var(--danger); font-weight: 600; }
.status-suspended { color: var(--warning); font-weight: 600; }

/* Log table specifics */
#log-table td:nth-child(4) { font-family: var(--mono); font-weight: 600; }
.http-2xx { color: var(--success); }
.http-4xx { color: var(--warning); }
.http-5xx { color: var(--danger); }
.detail-btn {
  padding: 4px 8px;
  font-size: 11px;
  background: var(--primary-light);
  color: var(--primary);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
}
.detail-btn:hover { background: #bfdbfe; }

/* Log header */
.log-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.log-header h2 { margin-bottom: 0; }

/* Modal */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0,0,0,0.5);
  z-index: 1000;
  justify-content: center;
  align-items: center;
}
.modal-overlay.visible { display: flex; }
.modal {
  background: white;
  border-radius: 10px;
  width: 90%;
  max-width: 800px;
  max-height: 85vh;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-200);
}
.modal-header h3 { font-size: 16px; }
.modal-close {
  border: none;
  background: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--gray-500);
  line-height: 1;
}
.modal-body { padding: 20px; overflow-y: auto; max-height: calc(85vh - 60px); }
.modal-section { margin-bottom: 16px; }
.modal-section h4 { font-size: 13px; font-weight: 600; color: var(--gray-500); margin-bottom: 8px; text-transform: uppercase; }
.modal-section pre {
  background: var(--gray-900);
  color: #e5e7eb;
  padding: 12px;
  border-radius: 6px;
  font-size: 12px;
  font-family: var(--mono);
  max-height: 300px;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
}

/* Footer */
footer {
  text-align: center;
  padding: 16px;
  color: var(--gray-500);
  font-size: 12px;
  margin-top: 20px;
}

/* Animations */
@keyframes fadeIn { from { opacity: 0; transform: translateY(-4px); } to { opacity: 1; transform: translateY(0); } }
.log-new { animation: fadeIn 0.3s ease; }

/* Amount formatting */
.amount { font-family: var(--mono); font-weight: 600; }
.amount-positive { color: var(--success); }
.amount-negative { color: var(--danger); }