:root {
  --brand-navy: #263544;
  --brand-navy-deep: #182028;
  --brand-orange: #f2711c;
  --brand-orange-deep: #cc5a12;
  --brand-green: #2e9e5b;
  --brand-green-deep: #1f7a44;
  --brand-red: #d9463a;
  --brand-amber: #e0a422;
  --ink-strong: #1f2d3a;
  --ink-soft: #62727f;
  --line: rgba(38, 53, 68, 0.12);
  --panel: rgba(255, 255, 255, 0.97);
  --page-top: #fbf7f2;
  --page-bottom: #eef1f4;
  --shadow-soft: 0 20px 50px rgba(31, 45, 58, 0.10);
}

html {
  font-size: 16px;
  min-height: 100%;
}

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  color: var(--ink-strong);
  background:
    radial-gradient(circle at top left, rgba(242, 113, 28, 0.10), transparent 30%),
    radial-gradient(circle at top right, rgba(46, 158, 91, 0.10), transparent 28%),
    linear-gradient(180deg, var(--page-top), var(--page-bottom));
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.site-header,
.site-footer {
  flex: 0 0 auto;
}

.app-main {
  flex: 1 0 auto;
}

.site-footer {
  padding: 1.1rem 0;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.6);
  font-size: 0.85rem;
}

a {
  color: var(--brand-orange-deep);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.text-muted {
  color: var(--ink-soft) !important;
}

.btn:focus,
.btn:active:focus,
.btn-link.nav-link:focus,
.form-control:focus,
.form-select:focus,
.form-check-input:focus {
  box-shadow: 0 0 0 0.18rem rgba(242, 113, 28, 0.18);
  border-color: rgba(242, 113, 28, 0.5);
}

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(14px);
  background: rgba(255, 255, 255, 0.92) !important;
  border-bottom: 1px solid var(--line) !important;
  box-shadow: none !important;
}

.navbar {
  padding: 0.85rem 0;
}

.navbar-brand {
  font-weight: 800;
  letter-spacing: 0.01em;
  color: var(--ink-strong) !important;
}

.nav-link {
  color: var(--ink-strong) !important;
  font-weight: 600;
  font-size: 0.94rem;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--brand-orange-deep) !important;
}

.dropdown-menu {
  border: 1px solid var(--line);
  border-radius: 12px;
  box-shadow: var(--shadow-soft);
  padding: 0.5rem;
}

.dropdown-item {
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.5rem 0.75rem;
}

.dropdown-item:hover,
.dropdown-item:focus {
  background: rgba(242, 113, 28, 0.08);
  color: var(--brand-orange-deep);
}

/* ── Buttons ── */
.btn {
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.92rem;
  padding: 0.5rem 1.1rem;
}

.btn-sm {
  border-radius: 8px;
  padding: 0.3rem 0.7rem;
}

.btn-primary,
.btn-brand {
  color: #fff;
  border: none;
  background: linear-gradient(135deg, var(--brand-orange), #f7941e);
  box-shadow: 0 10px 22px rgba(242, 113, 28, 0.28);
}

.btn-primary:hover,
.btn-primary:focus,
.btn-primary:active,
.btn-brand:hover,
.btn-brand:focus {
  color: #fff;
  background: linear-gradient(135deg, var(--brand-orange-deep), var(--brand-orange));
  box-shadow: 0 10px 22px rgba(242, 113, 28, 0.34);
}

.btn-success {
  background: var(--brand-green);
  border-color: var(--brand-green);
}

.btn-success:hover, .btn-success:focus {
  background: var(--brand-green-deep);
  border-color: var(--brand-green-deep);
}

.btn-outline-primary,
.btn-outline-brand {
  color: var(--brand-orange-deep);
  border: 1.5px solid rgba(242, 113, 28, 0.35);
  background: rgba(255, 255, 255, 0.7);
}

.btn-outline-primary:hover,
.btn-outline-brand:hover {
  color: #fff;
  background: var(--brand-orange);
  border-color: var(--brand-orange);
}

.btn-outline-secondary {
  color: var(--ink-soft);
  border: 1.5px solid var(--line);
}

.btn-outline-secondary:hover {
  color: var(--ink-strong);
  background: rgba(38, 53, 68, 0.06);
  border-color: var(--line);
}

.btn-link.nav-link {
  color: var(--ink-strong) !important;
  font-weight: 600;
  text-decoration: none;
}

/* ── Layout shells ── */
main.container {
  padding-top: 1.75rem;
  padding-bottom: 3rem;
}

.app-alert {
  border: 0;
  border-radius: 14px;
  font-weight: 600;
}

.alert-success { background: rgba(46, 158, 91, 0.12); color: var(--brand-green-deep); }
.alert-danger  { background: rgba(217, 70, 58, 0.1);  color: #a5281f; }

.content-card,
.stat-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: var(--shadow-soft);
}

.content-card {
  padding: 1.6rem;
}

/* ── Page headers ── */
.page-header,
.page-header-block {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.page-header h1, .page-header h2,
.page-header-block h1, .page-header-block h2 {
  margin: 0.3rem 0 0;
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--ink-strong);
}

.eyebrow {
  display: inline-flex;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  color: var(--brand-orange-deep);
  background: rgba(242, 113, 28, 0.1);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Plain h2 page titles elsewhere get the same weight/spacing treatment */
h2 {
  font-weight: 800;
  color: var(--ink-strong);
  letter-spacing: -0.01em;
}

/* ── Stat / KPI cards ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 1rem;
  margin: 0.25rem 0 1.75rem;
}

.stat-card {
  padding: 1.1rem 1.25rem;
  border-left: 4px solid var(--line);
  position: relative;
  overflow: hidden;
}

.stat-card .stat-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.35rem;
}

.stat-card .stat-value {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  color: var(--ink-strong);
}

.stat-card.stat-total   { border-left-color: var(--brand-navy); }
.stat-card.stat-overdue { border-left-color: var(--brand-red); }
.stat-card.stat-overdue .stat-value { color: var(--brand-red); }
.stat-card.stat-warn    { border-left-color: var(--brand-amber); }
.stat-card.stat-warn .stat-value    { color: #96721a; }
.stat-card.stat-info    { border-left-color: #3a8dc7; }
.stat-card.stat-info .stat-value    { color: #256591; }
.stat-card.stat-neutral { border-left-color: var(--ink-soft); }
.stat-card.stat-success { border-left-color: var(--brand-green); }
.stat-card.stat-success .stat-value { color: var(--brand-green-deep); }

/* ── Tables ── */
.table {
  --bs-table-bg: transparent;
}

.app-table,
.content-card .table,
table.table {
  margin-bottom: 0;
}

table.table thead th {
  color: var(--ink-soft);
  font-weight: 700;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border-bottom-width: 1px;
  border-bottom-color: var(--line);
  background: rgba(38, 53, 68, 0.03);
}

table.table td {
  vertical-align: middle;
  border-bottom-color: rgba(38, 53, 68, 0.06);
  font-size: 0.92rem;
}

table.table-hover tbody tr:hover {
  background: rgba(242, 113, 28, 0.04);
}

/* Wrap tables inside a card body automatically when placed straight in a content-card */
.content-card > .table-responsive:last-child,
.content-card > table.table:last-child {
  margin: -0.2rem -0.2rem -0.2rem;
  width: calc(100% + 0.4rem);
}

/* ── Badges / status pills ── */
.badge {
  font-weight: 700;
  padding: 0.4em 0.75em;
  border-radius: 999px;
  letter-spacing: 0.01em;
}

.badge-active         { background: rgba(46, 158, 91, 0.14);  color: var(--brand-green-deep); }
.badge-upcoming        { background: rgba(58, 141, 199, 0.14); color: #256591; }
.badge-duesoon         { background: rgba(224, 164, 34, 0.16); color: #8a6512; }
.badge-duetoday        { background: rgba(242, 113, 28, 0.16); color: var(--brand-orange-deep); }
.badge-overdue         { background: rgba(217, 70, 58, 0.14);  color: #a5281f; font-weight: 800; }
.badge-undercalibration{ background: rgba(38, 53, 68, 0.12);   color: var(--ink-strong); }
.badge-outofservice    { background: rgba(217, 70, 58, 0.1);   color: #a5281f; }
.badge-decommissioned  { background: rgba(38, 53, 68, 0.08);   color: var(--ink-soft); }
.badge-pending         { background: rgba(224, 164, 34, 0.16); color: #8a6512; }
.badge-approved        { background: rgba(46, 158, 91, 0.14);  color: var(--brand-green-deep); }
.badge-rejected        { background: rgba(217, 70, 58, 0.14);  color: #a5281f; }
.badge-pass            { background: rgba(46, 158, 91, 0.14);  color: var(--brand-green-deep); }
.badge-fail            { background: rgba(217, 70, 58, 0.14);  color: #a5281f; }

/* ── Forms ── */
.form-label {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--ink-soft);
  margin-bottom: 0.35rem;
}

.form-control,
.form-select {
  border-radius: 10px;
  border-color: rgba(38, 53, 68, 0.16);
  min-height: 42px;
}

textarea.form-control {
  min-height: auto;
}

/* ── Data list (label/value rows, used on Details pages) ── */
.data-list div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 0;
  border-top: 1px solid var(--line);
}

.data-list div:first-child {
  border-top: 0;
  padding-top: 0;
}

.data-list strong { color: var(--ink-strong); }
.data-list span { color: var(--ink-soft); text-align: right; }

/* ── Auth (login) shell ── */
.auth-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    radial-gradient(circle at top left, rgba(242, 113, 28, 0.12), transparent 32%),
    radial-gradient(circle at top right, rgba(46, 158, 91, 0.12), transparent 30%),
    linear-gradient(180deg, var(--page-top), var(--page-bottom));
}

.auth-card {
  width: min(92vw, 420px);
}

/* ── Signature / e-sign modal ── */
.signature-note {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  padding: 0.85rem 1rem;
  border-radius: 12px;
  background: rgba(38, 53, 68, 0.05);
  border: 1px solid var(--line);
  font-size: 0.85rem;
  color: var(--ink-soft);
}

/* ── Responsive ── */
@media (max-width: 991.98px) {
  .stats-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (max-width: 575.98px) {
  main.container { padding-top: 1.1rem; }
  .content-card, .stat-card { padding: 1.1rem; border-radius: 16px; }
  .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}