/* ============================================================
   RDW Corporate Theme — Bootstrap 5 overrides
   Palette: near-black #1a1a1a, dark-grey #4a4a4a, red #cc0000,
            light-grey #f5f5f5, white #ffffff
   ============================================================ */

:root {
  --corp-red:      #cc0000;
  --corp-red-dark: #aa0000;
  --corp-black:    #1a1a1a;
  --corp-dark:     #2d2d2d;
  --corp-grey:     #4a4a4a;
  --corp-mid:      #9a9a9a;
  --corp-light:    #f5f5f5;
  --corp-border:   #ddd;

  /* Bootstrap 5 CSS custom property overrides */
  --bs-primary:          var(--corp-red);
  --bs-primary-rgb:      204, 0, 0;
  --bs-secondary:        var(--corp-grey);
  --bs-secondary-rgb:    74, 74, 74;
  --bs-dark:             var(--corp-black);
  --bs-light:            var(--corp-light);
  --bs-body-bg:          #f8f8f8;
  --bs-body-color:       var(--corp-black);
  --bs-link-color:       var(--corp-red);
  --bs-link-hover-color: var(--corp-red-dark);
}

/* ---- Body ---- */
body {
  background-color: var(--bs-body-bg);
  font-size: 0.9rem;
}

/* ---- Navbar ---- */
.navbar-corporate {
  background-color: var(--corp-black);
  border-bottom: 3px solid var(--corp-red);
  padding: 0 1rem;
  min-height: 56px;
}

.navbar-corporate .navbar-toggler {
  border-color: rgba(255,255,255,.3);
}

.navbar-corporate .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%28255%2c 255%2c 255%2c 0.75%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.brand-accent {
  color: var(--corp-red);
  font-size: 1.2rem;
}

.role-badge {
  background-color: var(--corp-grey);
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---- Sidebar ---- */
.sidebar {
  background-color: #ffffff;
  border-right: 1px solid var(--corp-border);
  min-height: calc(100vh - 59px);
}

.sidebar-heading {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--corp-mid);
  padding: 0 0.75rem;
  margin-bottom: 0.25rem;
}

.sidebar-section {
  padding: 0.5rem 0;
}

.sidebar-link {
  color: var(--corp-grey);
  padding: 0.45rem 0.75rem;
  border-radius: 4px;
  font-size: 0.875rem;
  transition: background-color 0.15s, color 0.15s;
}

.sidebar-link:hover {
  background-color: var(--corp-light);
  color: var(--corp-black);
}

.sidebar-link.active {
  background-color: #fdecea;
  color: var(--corp-red);
  font-weight: 600;
  border-left: 3px solid var(--corp-red);
}

/* ---- Cards ---- */
.card {
  border-radius: 6px;
}

.card-header.section-header {
  background-color: var(--corp-black);
  color: #ffffff;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.6rem 1rem;
}

.login-header {
  background: linear-gradient(135deg, var(--corp-black) 0%, var(--corp-dark) 100%);
  border-bottom: 3px solid var(--corp-red);
}

/* ---- Page titles ---- */
.page-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--corp-black);
}

.section-subtitle {
  font-size: 1rem;
  font-weight: 600;
  color: var(--corp-grey);
  border-bottom: 2px solid var(--corp-border);
  padding-bottom: 0.4rem;
  margin-bottom: 0.75rem;
}

/* ---- Buttons ---- */
.btn-primary {
  background-color: var(--corp-red);
  border-color: var(--corp-red);
}

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

.btn-outline-secondary {
  color: var(--corp-grey);
  border-color: var(--corp-grey);
}

.btn-outline-secondary:hover {
  background-color: var(--corp-grey);
  color: #fff;
}

/* ---- Tables ---- */
thead.table-dark th,
.table-dark th {
  background-color: var(--corp-black);
  color: #fff;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-color: #333;
}

.table > :not(caption) > * > * {
  border-color: #e8e8e8;
}

/* ---- Status badges ---- */
.badge-in-room {
  background-color: #198754;
  color: #fff;
}

.badge-under-calib {
  background-color: #ffc107;
  color: var(--corp-black);
}

.badge-loaned {
  background-color: var(--corp-red);
  color: #fff;
}

.badge-overdue {
  background-color: #dc3545;
  color: #fff;
}

/* ---- Calibration overdue row highlight ---- */
tr.calibration-overdue td {
  background-color: #fff3cd !important;
}

/* ---- Device photo ---- */
.device-photo {
  max-height: 180px;
  object-fit: contain;
  width: 100%;
  background-color: var(--corp-light);
  border-radius: 4px;
}

/* ---- Form controls ---- */
.form-control:focus,
.form-select:focus {
  border-color: var(--corp-red);
  box-shadow: 0 0 0 0.2rem rgba(204, 0, 0, 0.15);
}

/* ---- Breadcrumb ---- */
.breadcrumb {
  font-size: 0.8rem;
  margin-bottom: 0.25rem;
}

.breadcrumb-item a {
  color: var(--corp-grey);
  text-decoration: none;
}

.breadcrumb-item a:hover {
  color: var(--corp-red);
}

/* ---- Alerts ---- */
.alert-success { border-left: 4px solid #198754; }
.alert-warning  { border-left: 4px solid #ffc107; }
.alert-danger   { border-left: 4px solid var(--corp-red); }
.alert-info     { border-left: 4px solid #0dcaf0; }