/* =====================================================================
   IT Management System — Design System
   Direction: "control room" — dark instrumentation sidebar, calm paper
   workspace, monospace identifiers for anything technical (asset codes,
   IPs, serials, PO/REQ numbers), teal signal accent for primary actions,
   amber/coral for warning/critical states. Space Grotesk for numerals
   and page titles, Inter for UI, JetBrains Mono for identifiers.
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  /* Core palette */
  --ink:        #0B1120;
  --ink-soft:   #141C30;
  --ink-line:   #232D45;
  --paper:      #F1F4F9;
  --surface:    #FFFFFF;
  --border:     #E3E7EF;
  --text:       #1B2333;
  --text-muted: #6B7488;
  --text-faint: #9AA3B5;

  /* Signal accent (teal) */
  --signal:      #0D9488;
  --signal-600:  #0F766E;
  --signal-soft: #E3F7F4;
  --signal-ring: rgba(13,148,136,.25);

  /* Status colors */
  --amber:      #D97706;
  --amber-soft: #FDF1DE;
  --coral:      #DC2626;
  --coral-soft: #FBE9E9;
  --blue:       #2563EB;
  --blue-soft:  #E7EFFD;
  --slate:      #64748B;
  --slate-soft: #EEF1F6;

  /* Layout */
  --sidebar-w: 264px;
  --sidebar-w-collapsed: 76px;
  --topbar-h: 64px;
  --radius: 10px;
  --radius-lg: 14px;
  --shadow-sm: 0 1px 2px rgba(15,23,42,.05);
  --shadow-md: 0 4px 16px rgba(15,23,42,.08);
  --shadow-lg: 0 12px 32px rgba(15,23,42,.14);

  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, SFMono-Regular, monospace;
}

[data-theme="dark"] {
  --paper:      #0D1220;
  --surface:    #141B2C;
  --border:     #232D45;
  --text:       #E7EAF2;
  --text-muted: #8D96AC;
  --text-faint: #667089;
  --signal-soft: rgba(13,148,136,.16);
  --amber-soft: rgba(217,119,6,.15);
  --coral-soft: rgba(220,38,38,.15);
  --blue-soft:  rgba(37,99,235,.16);
  --slate-soft: rgba(100,116,139,.18);
  --shadow-sm: 0 1px 2px rgba(0,0,0,.3);
  --shadow-md: 0 4px 16px rgba(0,0,0,.35);
}

* { -webkit-font-smoothing: antialiased; }

body {
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-body);
  font-size: .925rem;
}

h1, h2, h3, h4, h5, h6 { font-family: var(--font-display); font-weight: 600; letter-spacing: -.01em; color: var(--text); }

a { color: var(--signal); }
a:hover { color: var(--signal-600); }

/* Visible keyboard focus everywhere (accessibility floor) */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible,
textarea:focus-visible, .form-check-input:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

/* ---------------------------------------------------------------------
   Monospace identifier tag — the app's signature element. Used for
   asset codes, serials, IPs, MACs, PO/REQ numbers wherever they appear.
   --------------------------------------------------------------------- */
.id-tag {
  font-family: var(--font-mono);
  font-size: .78rem;
  font-weight: 500;
  background: var(--slate-soft);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: .15rem .5rem;
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  white-space: nowrap;
}
.id-tag.accent { background: var(--signal-soft); color: var(--signal-600); border-color: transparent; }
.status-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--text-faint); flex-shrink: 0; }
.status-dot.ok { background: var(--signal); box-shadow: 0 0 0 3px var(--signal-soft); }
.status-dot.warn { background: var(--amber); box-shadow: 0 0 0 3px var(--amber-soft); }
.status-dot.bad { background: var(--coral); box-shadow: 0 0 0 3px var(--coral-soft); }

/* ---------------------------------------------------------------------
   Topbar
   --------------------------------------------------------------------- */
.app-topbar {
  background: var(--ink);
  height: var(--topbar-h);
  position: sticky; top: 0; z-index: 1030;
  border-bottom: 1px solid var(--ink-line);
  display: flex; align-items: center;
  padding: 0 1.25rem;
  gap: 1rem;
}
.app-topbar .brand {
  display: flex; align-items: center; gap: .6rem;
  color: #fff; text-decoration: none; font-family: var(--font-display);
  font-weight: 600; font-size: 1.02rem; flex-shrink: 0;
}
.app-topbar .brand .mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--signal), #14B8A6);
  display: flex; align-items: center; justify-content: center; color: #fff; font-size: .95rem;
}
.app-topbar .page-title {
  color: var(--text-faint); font-size: .8rem; padding-left: 1rem; margin-left: .25rem;
  border-left: 1px solid var(--ink-line); display: none;
}
@media (min-width: 992px) { .app-topbar .page-title { display: block; } }
.app-topbar .page-title strong { color: #fff; font-weight: 600; display: block; font-size: .92rem; }

.topbar-search {
  flex-grow: 1; max-width: 420px; position: relative; display: none;
}
@media (min-width: 768px) { .topbar-search { display: block; } }
.topbar-search input {
  width: 100%; background: var(--ink-soft); border: 1px solid var(--ink-line); color: #fff;
  border-radius: 8px; padding: .4rem .7rem .4rem 2.1rem; font-size: .85rem;
}
.topbar-search input::placeholder { color: var(--text-faint); }
.topbar-search input:focus { outline: none; border-color: var(--signal); background: var(--ink); }
.topbar-search .bi-search { position: absolute; left: .7rem; top: 50%; transform: translateY(-50%); color: var(--text-faint); font-size: .85rem; }
.topbar-search kbd {
  position: absolute; right: .5rem; top: 50%; transform: translateY(-50%);
  background: var(--ink-line); color: var(--text-faint); font-size: .65rem; padding: .1rem .35rem; border-radius: 4px;
}
.search-results {
  position: absolute; top: calc(100% + 6px); left: 0; right: 0;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); max-height: 320px; overflow-y: auto; z-index: 1050; display: none;
}
.search-results.show { display: block; }
.search-results a {
  display: flex; align-items: center; gap: .6rem; padding: .55rem .8rem; color: var(--text);
  text-decoration: none; font-size: .85rem; border-bottom: 1px solid var(--border);
}
.search-results a:last-child { border-bottom: none; }
.search-results a:hover, .search-results a.active-result { background: var(--signal-soft); color: var(--signal-600); }
.search-results .empty { padding: .8rem; color: var(--text-muted); font-size: .82rem; }

.topbar-icon-btn {
  width: 36px; height: 36px; border-radius: 8px; border: 1px solid var(--ink-line);
  background: var(--ink-soft); color: var(--text-faint); display: flex; align-items: center; justify-content: center;
  position: relative; flex-shrink: 0;
}
.topbar-icon-btn:hover { color: #fff; border-color: var(--signal); }
.topbar-icon-btn .dot-badge {
  position: absolute; top: -4px; right: -4px; background: var(--coral); color: #fff;
  font-size: .6rem; font-weight: 700; min-width: 16px; height: 16px; border-radius: 8px;
  display: flex; align-items: center; justify-content: center; padding: 0 3px; border: 2px solid var(--ink);
}
.notif-panel {
  width: 320px; padding: 0; border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); overflow: hidden;
}
.notif-panel .notif-header { padding: .7rem 1rem; font-weight: 600; font-size: .85rem; border-bottom: 1px solid var(--border); background: var(--paper); }
.notif-panel .notif-item { padding: .6rem 1rem; border-bottom: 1px solid var(--border); font-size: .82rem; display: flex; gap: .6rem; }
.notif-panel .notif-item:last-child { border-bottom: none; }
.notif-panel .notif-empty { padding: 1.2rem; text-align: center; color: var(--text-muted); font-size: .82rem; }

.user-chip {
  display: flex; align-items: center; gap: .55rem; color: #fff; text-decoration: none;
}
.avatar-circle {
  width: 32px; height: 32px; border-radius: 50%; background: linear-gradient(135deg, var(--signal), #0EA5A0);
  color: #fff; display: flex; align-items: center; justify-content: center; font-size: .78rem; font-weight: 700;
  font-family: var(--font-display); flex-shrink: 0;
}

/* ---------------------------------------------------------------------
   Sidebar
   --------------------------------------------------------------------- */
.app-wrapper { display: flex; min-height: calc(100vh - var(--topbar-h)); }

.app-sidebar {
  width: var(--sidebar-w);
  background: var(--ink);
  border-right: 1px solid var(--ink-line);
  flex-shrink: 0;
  overflow-y: auto; overflow-x: hidden;
  height: calc(100vh - var(--topbar-h));
  position: sticky; top: var(--topbar-h);
  transition: width .18s ease;
  scrollbar-width: thin;
}
.app-sidebar::-webkit-scrollbar { width: 6px; }
.app-sidebar::-webkit-scrollbar-thumb { background: var(--ink-line); border-radius: 3px; }

.app-sidebar .sidebar-heading {
  font-size: .66rem; text-transform: uppercase; letter-spacing: .09em; font-weight: 600;
  color: var(--text-faint); margin: 1.1rem 1rem .35rem; white-space: nowrap;
}
.app-sidebar .nav-link {
  color: #C6CCDA; border-radius: 8px; padding: .5rem .75rem; margin: .1rem .6rem;
  font-size: .855rem; display: flex; align-items: center; gap: .65rem; position: relative;
  white-space: nowrap; overflow: hidden;
}
.app-sidebar .nav-link i.bi { font-size: .95rem; width: 18px; text-align: center; flex-shrink: 0; color: var(--text-faint); }
.app-sidebar .nav-link:hover { background: var(--ink-soft); color: #fff; }
.app-sidebar .nav-link:hover i.bi { color: var(--signal); }
.app-sidebar .nav-link.active {
  background: var(--signal-soft); color: var(--signal);
  font-weight: 600;
}
.app-sidebar .nav-link.active::before {
  content: ''; position: absolute; left: -6px; top: 8px; bottom: 8px; width: 3px;
  background: var(--signal); border-radius: 2px;
}
.app-sidebar .nav-link.active i.bi { color: var(--signal); }
.badge-soon {
  margin-left: auto; font-size: .58rem; background: transparent; color: var(--text-faint);
  border: 1px solid var(--ink-line); border-radius: 1rem; padding: .08rem .45rem; letter-spacing: .03em;
}

.app-sidebar.collapsed { width: var(--sidebar-w-collapsed); }
.app-sidebar.collapsed .sidebar-heading,
.app-sidebar.collapsed .nav-link span.label,
.app-sidebar.collapsed .badge-soon { display: none; }
.app-sidebar.collapsed .nav-link { justify-content: center; }

.sidebar-collapse-btn {
  width: 100%; background: transparent; border: none; border-top: 1px solid var(--ink-line);
  color: var(--text-faint); padding: .7rem; font-size: .8rem; display: flex; align-items: center;
  justify-content: center; gap: .4rem; position: sticky; bottom: 0; background: var(--ink);
}
.sidebar-collapse-btn:hover { color: #fff; }

/* ---------------------------------------------------------------------
   Content area, page header
   --------------------------------------------------------------------- */
.app-content { flex-grow: 1; padding: 1.5rem; min-width: 0; }

.page-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 1.25rem; gap: 1rem; flex-wrap: wrap; }
.page-header h4 { margin: 0; font-size: 1.25rem; }
.page-header .eyebrow { font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); font-weight: 600; margin-bottom: .15rem; }

/* ---------------------------------------------------------------------
   Cards
   --------------------------------------------------------------------- */
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.card-header {
  background: transparent; border-bottom: 1px solid var(--border);
  font-family: var(--font-display); font-weight: 600; font-size: .88rem;
  padding: .85rem 1.1rem;
}

.stat-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 1.1rem; display: flex; align-items: center; gap: 1rem;
  box-shadow: var(--shadow-sm); position: relative; overflow: hidden;
}
.stat-card .icon {
  width: 42px; height: 42px; border-radius: 11px; display: flex;
  align-items: center; justify-content: center; font-size: 1.15rem; flex-shrink: 0;
}
.stat-card .value { font-family: var(--font-display); font-size: 1.6rem; font-weight: 700; line-height: 1; color: var(--text); }
.stat-card .label { font-size: .74rem; color: var(--text-muted); margin-top: .25rem; font-weight: 500; }

/* Tone helpers reused across icons/badges */
.tone-signal { background: var(--signal-soft); color: var(--signal-600); }
.tone-amber  { background: var(--amber-soft); color: var(--amber); }
.tone-coral  { background: var(--coral-soft); color: var(--coral); }
.tone-blue   { background: var(--blue-soft); color: var(--blue); }
.tone-slate  { background: var(--slate-soft); color: var(--slate); }

/* ---------------------------------------------------------------------
   Buttons — reskin bootstrap defaults to the signal palette
   --------------------------------------------------------------------- */
.btn { border-radius: 8px; font-weight: 500; font-size: .85rem; }
.btn-primary { background: var(--signal); border-color: var(--signal); }
.btn-primary:hover, .btn-primary:focus { background: var(--signal-600); border-color: var(--signal-600); }
.btn-outline-primary { color: var(--signal); border-color: var(--signal); }
.btn-outline-primary:hover { background: var(--signal); border-color: var(--signal); }
.btn-outline-secondary { color: var(--text-muted); border-color: var(--border); }
.btn-outline-danger { color: var(--coral); border-color: var(--coral); }
.btn-outline-danger:hover { background: var(--coral); border-color: var(--coral); }
.btn-outline-success { color: var(--signal-600); border-color: var(--signal); }
.btn-outline-success:hover { background: var(--signal); border-color: var(--signal); color: #fff; }
.btn-sm { padding: .32rem .7rem; }

/* ---------------------------------------------------------------------
   Forms
   --------------------------------------------------------------------- */
.form-control, .form-select {
  border-radius: 8px; border-color: var(--border); font-size: .85rem;
  background: var(--surface); color: var(--text);
}
.form-control:focus, .form-select:focus {
  border-color: var(--signal); box-shadow: 0 0 0 .18rem var(--signal-ring);
}
.form-label { font-size: .8rem; font-weight: 600; color: var(--text-muted); margin-bottom: .3rem; }
[data-theme="dark"] .form-control, [data-theme="dark"] .form-select { background: var(--ink-soft); border-color: var(--ink-line); }

/* ---------------------------------------------------------------------
   Tables / DataTables
   --------------------------------------------------------------------- */
.table { color: var(--text); font-size: .85rem; }
.table > thead { background: var(--paper); }
.table > thead th {
  font-size: .7rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-muted);
  font-weight: 600; border-bottom: 1px solid var(--border); padding: .65rem .75rem;
}
.table > tbody td { padding: .65rem .75rem; border-color: var(--border); vertical-align: middle; }
.table-hover > tbody > tr:hover { background: var(--signal-soft); }
.table-striped > tbody > tr:nth-of-type(odd) > * { background-color: var(--paper); }

.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
  border-radius: 8px; border: 1px solid var(--border); padding: .3rem .6rem; font-size: .82rem; background: var(--surface); color: var(--text);
}
.dataTables_wrapper .dataTables_info, .dataTables_wrapper .dataTables_length label, .dataTables_wrapper .dataTables_filter label {
  font-size: .8rem; color: var(--text-muted);
}
.dataTables_wrapper .page-link { border-radius: 6px !important; margin: 0 2px; color: var(--text); border-color: var(--border); font-size: .8rem; }
.dataTables_wrapper .page-item.active .page-link { background: var(--signal); border-color: var(--signal); }

/* ---------------------------------------------------------------------
   Badges
   --------------------------------------------------------------------- */
.badge { font-weight: 600; font-size: .68rem; letter-spacing: .01em; padding: .32em .55em; border-radius: 6px; }
.bg-success { background-color: var(--signal-soft) !important; color: var(--signal-600) !important; }
.bg-warning { background-color: var(--amber-soft) !important; color: var(--amber) !important; }
.bg-danger  { background-color: var(--coral-soft) !important; color: var(--coral) !important; }
.bg-info    { background-color: var(--blue-soft) !important; color: var(--blue) !important; }
.bg-secondary, .bg-dark { background-color: var(--slate-soft) !important; color: var(--slate) !important; }
.bg-primary { background-color: var(--signal-soft) !important; color: var(--signal-600) !important; }

/* ---------------------------------------------------------------------
   Modals
   --------------------------------------------------------------------- */
.modal-content { border-radius: var(--radius-lg); border: 1px solid var(--border); background: var(--surface); }
.modal-header { border-bottom: 1px solid var(--border); padding: 1rem 1.2rem; }
.modal-header .modal-title { font-family: var(--font-display); font-size: 1rem; font-weight: 600; }
.modal-footer { border-top: 1px solid var(--border); padding: .85rem 1.2rem; }
.modal-body { padding: 1.1rem 1.2rem; }

/* ---------------------------------------------------------------------
   Empty states
   --------------------------------------------------------------------- */
.empty-state { text-align: center; padding: 2.5rem 1rem; color: var(--text-muted); }
.empty-state i.bi { font-size: 2rem; color: var(--text-faint); margin-bottom: .6rem; display: block; }
.empty-state .empty-title { font-weight: 600; color: var(--text); margin-bottom: .25rem; }

/* Numbers styled with the display face where it matters */
.metric { font-family: var(--font-display); font-weight: 700; }

@media (max-width: 991.98px) {
  .app-sidebar { position: fixed; left: -100%; top: var(--topbar-h); z-index: 1040; transition: left .2s; box-shadow: 2px 0 20px rgba(0,0,0,.25); }
  .app-sidebar.show { left: 0; }
  .sidebar-collapse-btn { display: none; }
}

/* DataTables Buttons (Excel/PDF/Print export) - segmented toolbar look */
.dt-toolbar { gap: .5rem; }
.dt-buttons {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}
.dt-buttons .export-btn {
  border: none;
  border-right: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-size: .76rem;
  font-weight: 600;
  padding: .38rem .8rem;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  border-radius: 0 !important;
  transition: background .12s ease, color .12s ease;
}
.dt-buttons .export-btn:last-child { border-right: none; }
.dt-buttons .export-btn i.bi { font-size: .85rem; }
.dt-buttons .export-btn:focus { box-shadow: none; }
.export-btn-excel:hover { background: var(--signal-soft); color: var(--signal-600); }
.export-btn-pdf:hover { background: var(--coral-soft); color: var(--coral); }
.export-btn-print:hover { background: var(--slate-soft); color: var(--slate); }
.dt-button-collection { border-radius: var(--radius); }

/* Search box sits in the same toolbar row as the export buttons */
.dt-toolbar .dataTables_filter input {
  border-radius: 8px; border: 1px solid var(--border); padding: .35rem .7rem;
  font-size: .82rem; background: var(--surface); color: var(--text);
}
.dt-toolbar .dataTables_filter label { display: flex; align-items: center; gap: .4rem; margin: 0; font-size: .8rem; color: var(--text-muted); }


/* Home launcher (app-switcher style grid) */
.home-launcher .eyebrow { font-size: .72rem; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); font-weight: 600; margin-bottom: .15rem; }
.launcher-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 1.1rem;
}
.launcher-tile {
  display: flex; flex-direction: column; align-items: center; gap: .6rem;
  padding: 1.25rem .5rem; background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); text-decoration: none; color: var(--text);
  box-shadow: var(--shadow-sm); transition: transform .12s ease, box-shadow .12s ease;
}
.launcher-tile:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); color: var(--text); }
.launcher-icon {
  width: 56px; height: 56px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
}
.launcher-label { font-size: .82rem; font-weight: 600; text-align: center; }

@media (max-width: 575.98px) {
  .launcher-grid { grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); gap: .8rem; }
  .launcher-tile { padding: 1rem .3rem; }
  .launcher-icon { width: 46px; height: 46px; font-size: 1.25rem; }
}