:root {
  --primary: #1e3a8a;
  --primary-hover: #1e40af;
  --primary-light: #eff6ff;
  --secondary: #0f172a;
  --accent: #2563eb;
  --success: #16a34a;
  --success-light: #dcfce7;
  --warning: #d97706;
  --warning-light: #fef3c7;
  --danger: #dc2626;
  --danger-light: #fee2e2;
  --bg-main: #f8fafc;
  --bg-card: #ffffff;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px 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);
  --radius: 8px;
  --radius-lg: 12px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  font-size: 14px;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* Navbar */
.navbar {
  background-color: #0f172a;
  color: #ffffff;
  padding: 0.75rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #1e293b;
  position: sticky;
  top: 0;
  z-index: 50;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: #ffffff;
  text-decoration: none;
}

.navbar-brand svg {
  color: #38bdf8;
}

.navbar-badge {
  font-size: 0.7rem;
  background-color: #1e293b;
  color: #94a3b8;
  padding: 2px 8px;
  border-radius: 9999px;
  border: 1px solid #334155;
  font-weight: 500;
}

.navbar-user {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.user-info {
  display: flex;
  flex-direction: column;
  text-align: right;
  line-height: 1.2;
}
.user-name {
  font-weight: 600;
  font-size: 0.85rem;
}
.user-role {
  font-size: 0.75rem;
  color: #94a3b8;
}

/* Layout */
.container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 2rem;
}

/* Page Header */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--secondary);
}

.page-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 0.25rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 500;
  font-size: 0.875rem;
  padding: 0.55rem 1.15rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.15s ease-in-out;
  text-decoration: none !important;
}

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

.btn-secondary {
  background-color: #ffffff;
  color: var(--text-main);
  border-color: var(--border-strong);
}
.btn-secondary:hover {
  background-color: #f1f5f9;
}

.btn-success {
  background-color: var(--success);
  color: #ffffff;
}
.btn-success:hover {
  background-color: #15803d;
}

.btn-danger {
  background-color: var(--danger);
  color: #ffffff;
}
.btn-danger:hover {
  background-color: #b91c1c;
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}

/* Cards & Grid */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.75rem;
}

.card-title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--secondary);
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.kpi-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.kpi-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background-color: var(--accent);
}

.kpi-card.success::before { background-color: var(--success); }
.kpi-card.warning::before { background-color: var(--warning); }
.kpi-card.danger::before { background-color: var(--danger); }

.kpi-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  font-weight: 600;
}

.kpi-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--secondary);
  margin-top: 0.25rem;
}

.kpi-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.badge-standard, .badge-success {
  background-color: var(--success-light);
  color: #166534;
}

.badge-customizing, .badge-warning {
  background-color: var(--warning-light);
  color: #92400e;
}

.badge-extension, .badge-purple {
  background-color: #f3e8ff;
  color: #6b21a8;
}

.badge-unsupported, .badge-danger {
  background-color: var(--danger-light);
  color: #991b1b;
}

.badge-info, .badge-blue {
  background-color: #e0f2fe;
  color: #0369a1;
}

.badge-draft, .badge-gray {
  background-color: #f1f5f9;
  color: #475569;
}

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

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

th {
  background-color: #f8fafc;
  color: #475569;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
}

td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-main);
  vertical-align: middle;
}

tr:hover td {
  background-color: #f8fafc;
}

/* Progress bar */
.progress-bar-container {
  width: 100%;
  background-color: #e2e8f0;
  border-radius: 9999px;
  height: 8px;
  overflow: hidden;
  margin-top: 0.5rem;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 9999px;
  background-color: var(--accent);
  transition: width 0.3s ease;
}

/* Wizard Steps Bar */
.wizard-stepper {
  display: flex;
  justify-content: space-between;
  margin-bottom: 2.5rem;
  position: relative;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.wizard-stepper::before {
  content: "";
  position: absolute;
  top: 20px;
  left: 30px;
  right: 30px;
  height: 2px;
  background-color: var(--border-strong);
  z-index: 1;
}

.step-item {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: transparent;
  cursor: pointer;
}

.step-circle {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background-color: #ffffff;
  border: 2px solid var(--border-strong);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
  transition: all 0.2s;
}

.step-item.active .step-circle {
  border-color: var(--accent);
  background-color: var(--accent);
  color: #ffffff;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.2);
}

.step-item.completed .step-circle {
  border-color: var(--success);
  background-color: var(--success);
  color: #ffffff;
}

.step-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  text-align: center;
  white-space: nowrap;
}

.step-item.active .step-label {
  color: var(--accent);
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

.modal-overlay.active {
  display: flex !important;
  opacity: 1 !important;
  visibility: visible !important;
  pointer-events: auto !important;
}

.modal-content {
  background: #ffffff;
  border-radius: var(--radius-lg);
  max-width: 650px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  padding: 2rem;
}

/* Form Controls */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
  color: var(--secondary);
}

.form-control, .form-select {
  width: 100%;
  padding: 0.6rem 0.85rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-strong);
  font-size: 0.9rem;
  color: var(--text-main);
  background-color: #ffffff;
  transition: border-color 0.15s ease;
}

.form-control:focus, .form-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 110;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.toast {
  background: #ffffff;
  border-radius: var(--radius);
  padding: 0.85rem 1.25rem;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  border-left: 4px solid var(--accent);
  animation: slideIn 0.3s ease-out;
}

.toast.success { border-left-color: var(--success); }
.toast.danger { border-left-color: var(--danger); }
.toast.warning { border-left-color: var(--warning); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Navbar Navigation & Submenus */
.navbar-nav {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  list-style: none;
  margin: 0 1.5rem;
  flex-wrap: wrap;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: #94a3b8;
  font-weight: 500;
  font-size: 0.85rem;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius);
  transition: all 0.15s ease-in-out;
  text-decoration: none;
}

.nav-link:hover {
  color: #ffffff;
  background-color: #1e293b;
  text-decoration: none;
}

.nav-link.active {
  color: #38bdf8;
  background-color: rgba(56, 189, 248, 0.12);
  font-weight: 600;
}

/* Role Badges */
.badge-role {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.725rem;
  font-weight: 600;
  letter-spacing: 0.025em;
  text-transform: uppercase;
}
.badge-role.admin { background-color: #fee2e2; color: #dc2626; border: 1px solid #fecaca; }
.badge-role.lead_architect { background-color: #fef3c7; color: #b45309; border: 1px solid #fde68a; }
.badge-role.architect { background-color: #eff6ff; color: #2563eb; border: 1px solid #bfdbfe; }
.badge-role.viewer { background-color: #f1f5f9; color: #475569; border: 1px solid #cbd5e1; }

/* Metric Cards for System & Analytics */
.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.metric-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.metric-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
}

.metric-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--secondary);
  line-height: 1.2;
}

.metric-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.progress-bar-bg {
  width: 100%;
  height: 8px;
  background-color: #e2e8f0;
  border-radius: 9999px;
  overflow: hidden;
  margin-top: 0.5rem;
}

.progress-bar-fill {
  height: 100%;
  border-radius: 9999px;
  transition: width 0.3s ease;
}

/* Config Sliders */
.slider-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.875rem;
  font-weight: 600;
}

.slider-input {
  width: 100%;
  height: 6px;
  border-radius: 5px;
  background: #cbd5e1;
  outline: none;
  cursor: pointer;
}

/* Drag and Drop Requirements Editor */
.drag-handle {
  cursor: grab;
  user-select: none;
  color: var(--text-muted);
  font-size: 1.15rem;
  padding: 0 4px;
  display: inline-flex;
  align-items: center;
}
.drag-handle:active {
  cursor: grabbing;
}
tr.req-drag-row {
  transition: background-color 0.15s ease, border-color 0.15s ease;
}
tr.req-drag-row.drag-active {
  opacity: 0.45;
  background-color: #eff6ff !important;
  border: 2px dashed #3b82f6 !important;
}
tr.req-drag-row.drag-over-top {
  border-top: 3px solid #2563eb !important;
}
tr.req-drag-row.drag-over-bottom {
  border-bottom: 3px solid #2563eb !important;
}