/* ============================================================
   Purchasing — modern app theme on top of stock Bootstrap 5.3
   Design language: neutral grays, one indigo accent, soft
   status badges, white top nav, system font stack. Compact.
   ============================================================ */

:root {
  --app-bg: #f6f7f9;
  --surface: #ffffff;
  --border: #e5e7eb;
  --border-strong: #d1d5db;
  --text: #1f2937;
  --text-muted: #6b7280;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --radius: 10px;
  --shadow-sm: 0 1px 2px rgba(16, 24, 40, .05);
}

/* ---- base ---- */
body {
  background: var(--app-bg);
  color: var(--text);
  /* font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; */
  font-family: 'Roboto', sans-serif;
  font-size: .875rem;
  -webkit-font-smoothing: antialiased;
  padding-bottom: 2rem;
}
h3 { font-size: 1.15rem; font-weight: 650; letter-spacing: -.01em; }
h5 { font-size: .95rem; font-weight: 600; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); text-decoration: underline; }

/* ---- top navigation: white bar, subtle border ---- */
.navbar.bg-dark {
  background: var(--surface) !important;
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  padding-top: .45rem; padding-bottom: .45rem;
}
.navbar .navbar-brand {
  color: var(--text) !important;
  font-weight: 700; font-size: 1rem; letter-spacing: -.01em;
}
.navbar-dark .navbar-nav .nav-link {
  color: var(--text-muted) !important;
  font-size: .82rem; font-weight: 500;
  padding: .4rem .65rem; border-radius: 7px;
}
.navbar-dark .navbar-nav .nav-link:hover {
  color: var(--text) !important; background: #f3f4f6;
}
.navbar-dark .navbar-toggler { border-color: var(--border); }
.navbar-dark .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(31,41,55,.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
.navbar .navbar-text { color: var(--text) !important; font-size: .82rem; font-weight: 500; }
.navbar .btn-outline-light {
  color: var(--text-muted); border-color: var(--border-strong); background: var(--surface);
}
.navbar .btn-outline-light:hover { color: var(--text); background: #f3f4f6; border-color: var(--border-strong); }

/* ---- cards: white surfaces, hairline borders, soft radius ---- */
.card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}
.card-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  border-radius: var(--radius) var(--radius) 0 0 !important;
  font-size: .8rem; font-weight: 600; color: var(--text);
  padding: .6rem .9rem;
}
.card-body { padding: .85rem .95rem; }
.card.border-primary { border-color: #bfdbfe; }
.card.border-warning { border-color: #fde68a; }
.card.border-danger  { border-color: #fecaca; }
.card.border-secondary { border-color: var(--border); }

/* ---- tables: airy rows, small-caps muted headers ---- */
.table { font-size: .84rem; color: var(--text); margin-bottom: 0; }
.table thead th {
  font-size: .68rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: .05em; color: var(--text-muted);
  border-bottom: 1px solid var(--border); background: #fafbfc;
}
.table > :not(caption) > * > * { padding: .5rem .75rem; border-color: #f0f1f3; }
.table-hover > tbody > tr:hover > * { background: #f8fafc; }
.table-primary > * { background: #eff6ff !important; }
.table-danger > * { background: #fef2f2 !important; }
.table-light > * { background: #fafbfc !important; }
.table-responsive th:first-child,
.table-responsive td:first-child {
  position: sticky;
  left: 0;
  background: #fff;
  z-index: 2;
}
.table-danger td:first-child { background: #fef2f2; }
.table-warning td:first-child { background: #fffbeb; }
.table-responsive td:first-child,
.table-responsive th:first-child {
  box-shadow: 2px 0 4px -2px rgba(0,0,0,.77);
}
/* ---- buttons: accent primary, quiet outlines, no shouting ---- */
.btn {
  font-size: .8rem; font-weight: 500; border-radius: 8px;
  padding: .38rem .85rem;
}
.btn-sm { font-size: .74rem; padding: .25rem .6rem; border-radius: 7px; }
.btn-primary { background: var(--accent); border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-success { background: #059669; border-color: #059669; }
.btn-success:hover { background: #047857; border-color: #047857; }
.btn-danger { background: #dc2626; border-color: #dc2626; }
.btn-warning { background: #f59e0b; border-color: #f59e0b; color: #fff; }
.btn-warning:hover { background: #d97706; border-color: #d97706; color: #fff; }
.btn-outline-secondary, .btn-outline-primary, .btn-outline-success,
.btn-outline-warning, .btn-outline-danger {
  color: var(--text); border-color: var(--border-strong); background: var(--surface);
}
.btn-outline-secondary:hover, .btn-outline-primary:hover, .btn-outline-success:hover,
.btn-outline-warning:hover, .btn-outline-danger:hover {
  color: var(--text); background: #f3f4f6; border-color: var(--border-strong);
}
.btn-outline-primary { color: var(--accent); border-color: #bfdbfe; }
.btn-outline-primary:hover { color: var(--accent-hover); background: #eff6ff; border-color: #bfdbfe; }
.btn-outline-success { color: #047857; border-color: #a7f3d0; }
.btn-outline-success:hover { color: #065f46; background: #ecfdf5; border-color: #a7f3d0; }
.btn-outline-danger { color: #b91c1c; border-color: #fecaca; }
.btn-outline-danger:hover { color: #991b1b; background: #fef2f2; border-color: #fecaca; }
.btn-outline-warning { color: #b45309; border-color: #fde68a; }
.btn-outline-warning:hover { color: #92400e; background: #fffbeb; border-color: #fde68a; }

/* ---- status badges: soft pastel pills (modern SaaS look) ---- */
.badge {
  font-size: .68rem; font-weight: 600; letter-spacing: .01em;
  padding: .28em .6em; border-radius: 999px;
}
.badge.bg-success  { background: #ecfdf5 !important; color: #047857; border: 1px solid #a7f3d0; }
.badge.bg-danger   { background: #fef2f2 !important; color: #b91c1c; border: 1px solid #fecaca; }
.badge.bg-warning  { background: #fffbeb !important; color: #b45309 !important; border: 1px solid #fde68a; }
.badge.bg-info     { background: #eff6ff !important; color: #1d4ed8; border: 1px solid #bfdbfe; }
.badge.bg-primary  { background: #eef2ff !important; color: #4338ca; border: 1px solid #c7d2fe; }
.badge.bg-secondary{ background: #f3f4f6 !important; color: #4b5563; border: 1px solid var(--border); }
.badge.bg-dark     { background: #f3f4f6 !important; color: #1f2937; border: 1px solid var(--border-strong); }
.badge.bg-light    { background: #f9fafb !important; color: var(--text-muted); border: 1px solid var(--border); }
/* the navbar unread counter should stay loud */
.navbar .badge.bg-danger { background: #dc2626 !important; color: #fff; border: 0; }

/* ---- forms ---- */
.form-control, .form-select {
  font-size: .84rem; padding: .38rem .65rem; border-radius: 8px;
  border-color: var(--border-strong); color: var(--text);
}
.form-control:focus, .form-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
}
.form-control-sm, .form-select-sm { font-size: .78rem; padding: .25rem .5rem; border-radius: 7px; }
.form-label { font-size: .72rem; font-weight: 600; color: var(--text-muted); margin-bottom: .25rem; }
.form-text { font-size: .72rem; }
.form-check-input:checked { background-color: var(--accent); border-color: var(--accent); }

/* ---- alerts, lists, misc ---- */
.alert { font-size: .82rem; border-radius: var(--radius); padding: .6rem .9rem; border: 1px solid transparent; }
.alert-success { background: #ecfdf5; color: #047857; border-color: #a7f3d0; }
.alert-danger  { background: #fef2f2; color: #b91c1c; border-color: #fecaca; }
.alert-warning { background: #fffbeb; color: #92400e; border-color: #fde68a; }
.alert-secondary { background: #f9fafb; color: var(--text-muted); border-color: var(--border); }
.list-group-item { padding: .55rem .85rem; font-size: .82rem; border-color: #f0f1f3; }
.accordion-item { border-color: var(--border); }
.accordion-button { font-size: .82rem; font-weight: 600; padding: .65rem .9rem; }
.accordion-button:not(.collapsed) { background: #eff6ff; color: var(--accent-hover); box-shadow: none; }
.modal-content { border-radius: 12px; border: 1px solid var(--border); }
.modal-header { padding: .6rem .95rem; border-bottom-color: var(--border); }
blockquote { font-size: .82rem; }
.text-muted { color: var(--text-muted) !important; }

/* dropdown search results */
.search-results .list-group-item, #vendor-results .list-group-item,
#merge-results .list-group-item {
  font-size: .8rem; padding: .45rem .75rem; cursor: pointer;
}

/* ---- navbar brand + dropdowns ---- */
.navbar .brand-text { font-weight: 700; font-size: 1rem; color: var(--text); }
.navbar .navbar-brand img { border-radius: 5px; }
.navbar .dropdown-menu {
  border: 1px solid var(--border); border-radius: 10px;
  box-shadow: 0 6px 24px rgba(16,24,40,.10); padding: .35rem;
  font-size: .84rem; margin-top: .35rem;
}
.navbar .dropdown-item { border-radius: 7px; padding: .4rem .65rem; color: var(--text); }
.navbar .dropdown-item:hover { background: #f3f4f6; color: var(--text); }
.navbar .dropdown-item form { margin: 0; }
.navbar .dropdown-item button { all: unset; width: 100%; cursor: pointer; }
.navbar-dark .navbar-nav .nav-link.dropdown-toggle { color: var(--text-muted) !important; }
.navbar-dark .navbar-nav .show > .nav-link { color: var(--text) !important; }
.navbar .navbar-text.dropdown-toggle { cursor: pointer; }

/* ---- slim step indicator (PR / PO detail pages) ---- */
.stepper { display: flex; }
.stepper .step { flex: 1; min-width: 0; text-align: center; position: relative; }
.stepper .track { position: relative; height: 14px; }
.stepper .track::before, .stepper .track::after {
  content: ""; position: absolute; top: 6px; height: 2px; background: var(--border);
}
.stepper .track::before { left: 0; right: 50%; }
.stepper .track::after { left: 50%; right: 0; }
.stepper .step:first-child .track::before, .stepper .step:last-child .track::after { display: none; }
.stepper .dot {
  position: absolute; left: 50%; top: 0; transform: translateX(-50%);
  width: 14px; height: 14px; border-radius: 50%;
  background: #fff; border: 2px solid var(--border-strong); z-index: 1;
}
.stepper .step-label { font-size: .68rem; color: var(--text-muted); margin-top: .15rem;
  white-space: normal; overflow: hidden; text-overflow: ellipsis; }
.stepper .step-note { font-size: .65rem; color: var(--text-muted); }
/* done steps: filled green, and the line leading into them */
.stepper .step.done .dot { background: #059669; border-color: #059669; }
.stepper .step.done .track::before, .stepper .step.done .track::after,
.stepper .step.current .track::before { background: #059669; }
.stepper .step.done .step-label { color: #047857; }
/* current step variants */
.stepper .step.current .dot { border-width: 3px; }
.stepper .step.current.ok .dot { border-color: var(--accent); }
.stepper .step.current.ok .step-label { color: var(--accent-hover); font-weight: 600; }
.stepper .step.current.warning .dot { border-color: #f59e0b; background: #fffbeb; }
.stepper .step.current.warning .step-label { color: #b45309; font-weight: 600; }
.stepper .step.current.danger .dot { border-color: #dc2626; background: #fef2f2; }
.stepper .step.current.danger .step-label { color: #b91c1c; font-weight: 600; }
.stepper .step.current.danger .track::before { background: #dc2626; }
.stepper .step.current.muted .dot { border-color: var(--border-strong); background: #f3f4f6; }
.stepper .step.current.muted .step-label { font-weight: 600; }
/* a finished flow (last step done) */
.stepper .step.current.ok.final .dot { background: #059669; border-color: #059669; }