/* --- LIMS INTA: Design System & Styles --- */
:root {
  --primary: #1e40af;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --primary-border: #bfdbfe;
  
  --secondary: #0f766e;
  --secondary-hover: #115e59;
  --secondary-light: #f0fdfa;
  
  --bg-main: #f8fafc;
  --surface: #ffffff;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  
  --text-main: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  
  --success: #16a34a;
  --success-bg: #f0fdf4;
  --success-border: #bbf7d0;
  
  --warning: #d97706;
  --warning-bg: #fffbeb;
  --warning-border: #fde68a;
  
  --danger: #dc2626;
  --danger-bg: #fef2f2;
  --danger-border: #fecaca;
  
  --info: #0284c7;
  --info-bg: #f0f9ff;
  --info-border: #bae6fd;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  
  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header & Navbar */
.navbar {
  background-color: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.85rem 1.75rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
}

.nav-brand .badge-tag {
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.5rem;
  background-color: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--primary-border);
  border-radius: var(--radius-sm);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.925rem;
  transition: color 0.15s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
}

.user-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.75rem;
  background-color: var(--border-light);
  border-radius: 9999px;
  font-weight: 600;
  color: var(--text-main);
}

.service-badge {
  padding: 0.35rem 0.65rem;
  background-color: var(--secondary-light);
  border: 1px solid #99f6e4;
  color: var(--secondary);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.8rem;
  text-decoration: none;
}

.service-badge:hover {
  background-color: #ccfbf1;
}

/* Layout container */
.container {
  max-width: 1200px;
  width: 100%;
  margin: 1.75rem auto;
  padding: 0 1.25rem;
  flex: 1;
}

/* Flash alerts */
.alert-container {
  margin-bottom: 1.5rem;
}

.alert {
  padding: 0.85rem 1.25rem;
  border-radius: var(--radius);
  margin-bottom: 0.75rem;
  font-size: 0.925rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid transparent;
}

.alert-success { background-color: var(--success-bg); color: var(--success); border-color: var(--success-border); }
.alert-danger { background-color: var(--danger-bg); color: var(--danger); border-color: var(--danger-border); }
.alert-warning { background-color: var(--warning-bg); color: var(--warning); border-color: var(--warning-border); }
.alert-info { background-color: var(--info-bg); color: var(--info); border-color: var(--info-border); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.55rem 1.15rem;
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease-in-out;
}

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

.btn-secondary {
  background-color: var(--surface);
  color: var(--text-main);
  border-color: var(--border);
}
.btn-secondary:hover {
  background-color: var(--bg-main);
  border-color: var(--text-light);
}

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

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.825rem;
}

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

/* Cards & Surfaces */
.card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  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-light);
  padding-bottom: 0.75rem;
}

.card-header h2, .card-header h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-main);
}

/* Metric KPI Grid */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.kpi-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
}

.kpi-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.kpi-value {
  font-size: 2rem;
  font-weight: 700;
  margin: 0.5rem 0 0.25rem 0;
  color: var(--text-main);
}

/* Status Badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-pendiente { background-color: var(--warning-bg); color: var(--warning); border: 1px solid var(--warning-border); }
.badge-en_proceso { background-color: var(--info-bg); color: var(--info); border: 1px solid var(--info-border); }
.badge-completada, .badge-completado { background-color: var(--success-bg); color: var(--success); border: 1px solid var(--success-border); }

/* Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.table th {
  background-color: var(--bg-main);
  color: var(--text-muted);
  font-weight: 600;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
}

.table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-light);
  vertical-align: middle;
}

.table tr:hover td {
  background-color: #fafbfc;
}

/* Forms */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group.col-span-full {
  grid-column: 1 / -1;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-main);
}

.form-control {
  padding: 0.55rem 0.85rem;
  font-size: 0.925rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background-color: #fff;
  color: var(--text-main);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.15);
}

.form-control:disabled, .form-control[readonly] {
  background-color: var(--bg-main);
  color: var(--text-muted);
}

textarea.form-control {
  min-height: 80px;
  resize: vertical;
}

/* Filter bar */
.filter-bar {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.25rem;
  margin-bottom: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: flex-end;
}

/* Checkbox & Lab Selector Grid */
.lab-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
  background-color: #ffffff;
}

.lab-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.85rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--primary-light);
}

.lab-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--primary);
}

.analisis-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.75rem;
}

.checkbox-card {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.6rem 0.85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  background-color: var(--bg-main);
  transition: all 0.15s;
}

.checkbox-card:hover {
  border-color: var(--primary-border);
  background-color: var(--primary-light);
}

.checkbox-card input[type="checkbox"] {
  width: 1.1rem;
  height: 1.1rem;
  accent-color: var(--primary);
  cursor: pointer;
}

.analisis-nombre {
  font-weight: 600;
  font-size: 0.875rem;
}

.analisis-unidad {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: block;
}

/* Login specific layout */
.auth-wrapper {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-md);
}

.auth-header {
  text-align: center;
  margin-bottom: 1.75rem;
}

.auth-header h1 {
  font-size: 1.5rem;
  color: var(--primary);
  font-weight: 700;
}

.auth-header p {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-top: 0.35rem;
}

/* Service Selector Screen */
.service-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.service-card {
  background-color: var(--surface);
  border: 2px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.service-card:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.service-card h3 {
  font-size: 1.25rem;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

/* Footer */
footer {
  text-align: center;
  padding: 1.25rem;
  font-size: 0.825rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  background-color: var(--surface);
}

/* Estado de cobro / facturación interactivo */
.btn-pago-toggle {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.15rem 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.2rem;
  min-height: 1.8rem;
}

.btn-pago-toggle:hover {
  background-color: var(--surface-hover);
  border-color: var(--border-focus);
}

.pago-simbolo {
  font-family: monospace;
  font-size: 1.2rem;
  font-weight: 700;
  line-height: 1;
}

.pago-simbolo.pendiente {
  color: var(--text-muted);
}

.pago-simbolo.facturado {
  color: var(--warning);
}

.pago-simbolo.cobrado {
  color: var(--success);
}

.pago-simbolo.informado {
  color: var(--primary);
}