:root {
  --app-font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  --app-body-color: #1e293b;
  --app-muted-color: #64748b;
  --app-heading-color: #0f172a;
  --app-bg-color: #f4f6fb;
  --app-surface-color: #ffffff;
  --app-surface-muted-color: #f8fafc;
  --app-border-color: #e2e8f0;
  --app-border-radius: 0.5rem;
  --app-shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.08);
  --app-shadow-md: 0 15px 30px rgba(15, 23, 42, 0.1);
  --app-primary: #2f71e7;
  --app-primary-hover: #1f5ed2;
  --app-success: #2fb344;
  --app-danger: #d63939;
  --app-font-size-base: 1rem;
  --bs-body-font-size: 1rem;
}

html {
  font-size: 14px;
  position: relative;
  min-height: 100%;
  scroll-behavior: smooth;
  background-color: var(--app-bg-color);
}

@media (max-width: 767.98px) {
  html {
    font-size: 13.5px;
  }
}

body {
  font-family: var(--app-font-family);
  font-size: var(--app-font-size-base);
  color: var(--app-body-color);
  background-color: var(--app-bg-color);
  line-height: 1.45;
  margin: 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

main,
section,
.card,
.table-responsive {
  background-color: transparent;
}

p,
label,
li,
input,
button,
select,
textarea {
  font-size: var(--app-font-size-base);
  color: inherit;
}

small,
.text-muted {
  font-size: 0.78rem;
  color: var(--app-muted-color) !important;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--app-font-family);
  font-weight: 600;
  color: var(--app-heading-color);
  line-height: 1.18;
  margin-bottom: 0.4rem;
}

.h1,
.h2,
.h3,
.h4,
.h5,
.h6 {
  color: var(--app-heading-color);
}

h1 {
  font-size: 1.6rem;
}

h2 {
  font-size: 1.32rem;
}

h3 {
  font-size: 1.12rem;
}

h4 {
  font-size: 1rem;
}

h5 {
  font-size: 0.9rem;
}

h6 {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--app-muted-color);
}

a {
  color: var(--app-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--app-primary-hover);
  text-decoration: none;
}

hr {
  border: 0;
  border-top: 1px solid var(--app-border-color);
  margin: 1.25rem 0;
}

.card {
  background-color: var(--app-surface-color);
  border: 1px solid var(--app-border-color);
  border-radius: var(--app-border-radius);
  box-shadow: var(--app-shadow-sm);
  margin-bottom: 1rem;
}

.card-header {
  border-bottom: 1px solid var(--app-border-color);
  padding: 0.75rem 1rem;
  font-weight: 600;
}

.card-body {
  padding: 1rem;
}

.card-title {
  font-size: 0.98rem;
  margin-bottom: 0.2rem;
}

.table {
  font-size: 0.8rem;
  border-color: var(--app-border-color);
}

.table th,
.table td {
  padding: 0.7rem 0.75rem;
  border-top-color: var(--app-border-color);
  vertical-align: middle;
}

.table thead th {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.68rem;
  color: var(--app-muted-color);
  border-bottom: 1px solid var(--app-border-color);
}

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

.table tbody tr:hover {
  background-color: var(--app-surface-muted-color);
}

.btn {
  font-weight: 500;
  letter-spacing: 0.01em;
  border-radius: 0;
  padding: 0.4rem 0.85rem;
  font-size: 0.78rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  transition: background-color 0.15s ease, box-shadow 0.15s ease;
}

.btn-primary {
  color: #fff;
  background-color: var(--app-primary);
  border-color: var(--app-primary);
  box-shadow: var(--app-shadow-sm);
}

.btn-primary:hover,
.btn-primary:focus {
  background-color: var(--app-primary-hover);
  border-color: var(--app-primary-hover);
}

.btn-outline-primary {
  color: var(--app-primary);
  border-color: var(--app-border-color);
  background-color: transparent;
}

.btn-outline-primary:hover,
.btn-outline-primary:focus {
  color: var(--app-primary);
  border-color: var(--app-primary);
  background-color: rgba(47, 113, 231, 0.08);
}

.btn-light {
  color: var(--app-body-color);
  background-color: var(--app-surface-muted-color);
  border-color: var(--app-border-color);
}

.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-select:focus,
.form-check-input:focus {
  outline: none;
  box-shadow: 0 0 0 0.12rem rgba(47, 113, 231, 0.25);
}

.form-control,
.form-select,
.input-group-text,
.form-control-sm,
.form-select-sm {
  border-color: var(--app-border-color);
  border-radius: 0;
  font-size: var(--app-font-size-base);
  padding: 0.45rem 0.7rem;
  background-color: #fff;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--app-primary);
  background-color: #fff;
}

.form-check-input {
  width: 1rem;
  height: 1rem;
  border-color: var(--app-border-color);
  border-radius: 0.25rem;
}

.badge {
  border-radius: 999px;
  font-size: 0.68rem;
  font-weight: 500;
  padding: 0.3rem 0.55rem;
}

.badge.bg-primary {
  background-color: rgba(47, 113, 231, 0.15);
  color: var(--app-primary);
}

.badge.bg-success {
  background-color: rgba(47, 179, 68, 0.15);
  color: var(--app-success);
}

.badge.bg-danger {
  background-color: rgba(214, 57, 57, 0.15);
  color: var(--app-danger);
}

#clientCartBadge.bg-danger {
  color: #fff;
}

.list-group-item {
  border-color: var(--app-border-color);
  font-size: 0.85rem;
}

.alert {
  border-radius: calc(var(--app-border-radius) * 0.7);
  font-size: 0.8rem;
}

.table-responsive {
  border-radius: var(--app-border-radius);
  box-shadow: var(--app-shadow-sm);
  background-color: var(--app-surface-color);
  border: 1px solid var(--app-border-color);
}

.navbar,
.navbar-nav .nav-link {
  font-size: 0.85rem;
}

.client-footer h1,
.client-footer h2,
.client-footer h3,
.client-footer h4,
.client-footer h5,
.client-footer h6,
.client-footer .h1,
.client-footer .h2,
.client-footer .h3,
.client-footer .h4,
.client-footer .h5,
.client-footer .h6 {
  color: inherit;
}