/* ============================================================
   LabInventory Pro – Main Stylesheet
   Aesthetic: Scientific Precision / Dark Lab Interface
   Fonts: IBM Plex Mono + IBM Plex Sans
   ============================================================ */

/* ─────────────────────────────────────────────
   CSS CUSTOM PROPERTIES
   ───────────────────────────────────────────── 
  --cyan:     #00d4ff;
  --text-muted:     #4a6a88;
  --green:    #26de81;
  --red:      #fc5c65;
  --amber:    #f7b731;
  --radius:       8px;
   
*/
:root {
  --navy-950: #050d1a;
  --navy-900: #0a1628;
  --navy-800: #0f2040;
  --navy-700: #162a52;
  --navy-600: #1d3464;
  --navy-500: #254076;

  --cyan:     #00849e;
  --cyan-dim: #0097b8;
  --cyan-glow:#00d4ff33;

  --amber:    #d29413;
  --amber-dim:#c49228;
 
  --green:    #00763a;
  --green-dim:#1aaa5f;
 
  --red:      #ec000d;
  --red-dim:  #cc3d45;

  --purple:   #a55eea;

  --text-primary:   #e8f4fd;
  --text-secondary: #7ba3c8;
  --text-muted:     #222222;

  --border:         #1d3464;
  --border-light:   #254076;

  --surface-1: #0d1e35;
  --surface-2: #112238;
  --surface-3: #152b45;

  --sidebar-w:    260px;
  --topbar-h:     60px;
  --radius:       3px;
 
  --radius-lg:    14px;
  --radius-xl:    20px;
  --shadow:       0 4px 24px rgba(0,0,0,0.4);
  --shadow-lg:    0 8px 40px rgba(0,0,0,0.6);
  --transition:   0.18s ease;

  --font-mono:  'IBM Plex Mono', 'Courier New', monospace;
  --font-sans:  'IBM Plex Sans', system-ui, sans-serif;
}

/*

*/
[data-theme="light"] {
  --navy-950: #f0f6ff;
  --navy-900: #e8f0fc;
  --navy-800: #dce9fb;
  --surface-1: #ffffff;
  --surface-2: #f4f8fe;
  --surface-3: #eaf2ff;
  --text-primary:   #0d1e35;
  --text-secondary: #2c5282;
  --text-muted:     #4a6a88;
  --border:         #c2d9f5;
  --border-light:   #dce9fb;
}

/* ─────────────────────────────────────────────
   RESET & BASE
   ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--navy-900);
  display: flex;
  min-height: 100vh;
  overflow-x: hidden;
}

a { color: var(--cyan); text-decoration: none; }
a:hover { color: #fff; }
img { max-width: 100%; }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }
::selection { background: var(--cyan-glow); color: var(--cyan); }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--navy-800); }
::-webkit-scrollbar-thumb { background: var(--navy-600); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--cyan-dim); }

/* ─────────────────────────────────────────────
   LAYOUT
   ───────────────────────────────────────────── */
.sidebar {
  position: fixed;
  top: 0; left: 0; bottom: 0;
  width: var(--sidebar-w);
  background: var(--navy-950);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  z-index: 200;
  transition: width var(--transition), transform var(--transition);
  overflow: hidden;
}

.sidebar.collapsed { width: 68px; }
.sidebar.collapsed .logo-text,
.sidebar.collapsed .nav-section-label,
.sidebar.collapsed .nav-item span:not(.badge),
.sidebar.collapsed .user-details { display: none; }
.sidebar.collapsed .nav-item { justify-content: center; padding: 12px; }
.sidebar.collapsed .logo { justify-content: center; }
.sidebar.collapsed .user-info { justify-content: center; }
.sidebar.collapsed .btn-logout { display: none; }

.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left var(--transition);
}

.sidebar.collapsed ~ .main-content { margin-left: 68px; }

.page-content {
  flex: 1;
  padding: 28px;
  max-width: 1600px;
}

/* ─────────────────────────────────────────────
   SIDEBAR
   ───────────────────────────────────────────── */
.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 16px;
  border-bottom: 1px solid var(--border);
  min-height: 68px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  overflow: hidden;
  white-space: nowrap;
}

.logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--cyan), var(--cyan-dim));
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 16px; color: var(--navy-950);
  flex-shrink: 0;
  box-shadow: 0 0 16px var(--cyan-glow);
}

.logo-name {
  display: block;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.3px;
}

.logo-sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.sidebar-toggle {
  background: none; border: none; color: var(--text-muted);
  padding: 6px; border-radius: var(--radius);
  font-size: 14px; transition: color var(--transition), background var(--transition);
}
.sidebar-toggle:hover { color: var(--text-primary); background: var(--navy-800); }

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 16px 0;
}

.nav-section { margin-bottom: 8px; }

.nav-section-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--text-muted);
  padding: 8px 20px 4px;
  text-transform: uppercase;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 20px;
  color: var(--text-secondary);
  transition: all var(--transition);
  border-left: 3px solid transparent;
  font-size: 13.5px;
  font-weight: 400;
  white-space: nowrap;
}

.nav-item:hover {
  color: var(--text-primary);
  background: var(--navy-800);
  border-left-color: var(--border-light);
}

.nav-item.active {
  color: var(--cyan);
  background: linear-gradient(90deg, var(--cyan-glow) 0%, transparent 100%);
  border-left-color: var(--cyan);
  font-weight: 500;
}

.nav-item i { width: 18px; text-align: center; font-size: 14px; flex-shrink: 0; }

.badge {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  padding: 2px 6px;
  border-radius: 20px;
  line-height: 1.4;
}
.badge-danger  { background: var(--red);   color: #fff; }
.badge-warning { background: var(--amber); color: var(--navy-950); }
.badge-success { background: var(--green); color: var(--navy-950); }
.badge-info    { background: var(--cyan);  color: var(--navy-950); }

.sidebar-footer {
  display: flex;
  align-items: center;
  padding: 16px;
  border-top: 1px solid var(--border);
  gap: 10px;
}

.user-info { display: flex; align-items: center; gap: 10px; flex: 1; overflow: hidden; }

.user-avatar {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--navy-600), var(--cyan-dim));
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--cyan);
  flex-shrink: 0;
}

.user-details { overflow: hidden; }
.user-name { display: block; font-size: 13px; font-weight: 500; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { display: block; font-family: var(--font-mono); font-size: 10px; color: var(--text-muted); }

.btn-logout {
  background: none; border: none;
  color: var(--text-muted);
  padding: 8px;
  border-radius: var(--radius);
  transition: all var(--transition);
  font-size: 14px;
}
.btn-logout:hover { color: var(--red); background: rgba(252,92,101,0.1); }

/* ─────────────────────────────────────────────
   TOPBAR
   ───────────────────────────────────────────── */
.topbar {
  height: var(--topbar-h);
  background: var(--navy-950);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 28px;
  gap: 16px;
  position: sticky; top: 0;
  z-index: 100;
}

.topbar-left { display: flex; align-items: center; gap: 12px; flex: 1; }
.topbar-right { display: flex; align-items: center; gap: 8px; }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--text-secondary); }
.breadcrumb a:hover { color: var(--cyan); }
.breadcrumb .sep { color: var(--text-muted); }
.breadcrumb span { color: var(--text-primary); }

.global-search {
  position: relative;
  display: flex;
  align-items: center;
}

.global-search i {
  position: absolute; left: 12px;
  color: var(--text-muted);
  pointer-events: none;
}

.global-search input {
  background: var(--navy-800);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 7px 16px 7px 36px;
  width: 280px;
  color: var(--text-primary);
  font-size: 13px;
  transition: all var(--transition);
  outline: none;
}

.global-search input:focus {
  border-color: var(--cyan-dim);
  background: var(--surface-1);
  box-shadow: 0 0 0 3px var(--cyan-glow);
  width: 340px;
}

.search-results {
  position: absolute;
  top: calc(100% + 8px);
  left: 0; right: 0;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: none;
  z-index: 300;
  max-height: 360px;
  overflow-y: auto;
}

.search-results.show { display: block; }

.search-result-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  cursor: pointer;
  border-bottom: 1px solid var(--border);
  transition: background var(--transition);
}
.search-result-item:hover { background: var(--navy-800); }
.search-result-item:last-child { border-bottom: none; }
.search-result-icon { width: 32px; height: 32px; background: var(--navy-700); border-radius: var(--radius); display:flex;align-items:center;justify-content:center; color:var(--cyan); font-size:12px; }
.search-result-name { font-size: 13px; color: var(--text-primary); }
.search-result-meta { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); }

.btn-icon {
  width: 36px; height: 36px;
  background: none;
  border: none;
  border-radius: var(--radius);
  color: var(--text-muted);
  display: flex; align-items: center; justify-content: center;
  font-size: 15px;
  transition: all var(--transition);
  position: relative;
}
.btn-icon:hover { background: var(--navy-800); color: var(--text-primary); }

.topbar-alerts .alert-dot {
  position: absolute; top: 6px; right: 6px;
  width: 8px; height: 8px;
  border-radius: 50%;
  border: 2px solid var(--navy-950);
}
.dot-danger  { background: var(--red); }
.dot-warning { background: var(--amber); }

/* ─────────────────────────────────────────────
   FLASH MESSAGES
   ───────────────────────────────────────────── */
.flash {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  font-size: 13.5px;
  font-weight: 500;
  position: relative;
  animation: slideDown 0.3s ease;
}
@keyframes slideDown { from { transform: translateY(-100%); opacity:0; } to { transform: translateY(0); opacity:1; } }
.flash-success { background: rgba(38,222,129,0.12); border-bottom: 1px solid rgba(38,222,129,0.3); color: var(--green); }
.flash-error   { background: rgba(252,92,101,0.12); border-bottom: 1px solid rgba(252,92,101,0.3); color: var(--red); }
.flash-warning { background: rgba(247,183,49,0.12);  border-bottom: 1px solid rgba(247,183,49,0.3);  color: var(--amber); }
.flash-info    { background: rgba(0,212,255,0.08);   border-bottom: 1px solid rgba(0,212,255,0.2);   color: var(--cyan); }
.flash-close { margin-left: auto; background: none; border: none; color: inherit; opacity: 0.6; font-size: 18px; line-height:1; cursor:pointer; }
.flash-close:hover { opacity: 1; }

/* ─────────────────────────────────────────────
   PAGE HEADERS
   ───────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 16px;
  flex-wrap: wrap;
}

.page-title-group {}
.page-title {
  font-family: var(--font-mono);
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 12px;
  line-height: 1.2;
}
.page-title i { color: var(--cyan); font-size: 20px; }
.page-subtitle { color: var(--text-muted); font-size: 13px; margin-top: 4px; }
.page-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

/* ─────────────────────────────────────────────
   BUTTONS
   ───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--radius);
  font-size: 13.5px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: all var(--transition);
  cursor: pointer;
  white-space: nowrap;
  line-height: 1.4;
}
.btn i { font-size: 13px; }

.btn-primary {
  background: var(--cyan);
  color: var(--navy-950);
  border-color: var(--cyan);
}
.btn-primary:hover { background: #00b8dd; border-color: #00b8dd; box-shadow: 0 0 20px var(--cyan-glow); }

.btn-secondary {
  background: var(--navy-800);
  color: var(--text-secondary);
  border-color: var(--border);
}
.btn-secondary:hover { background: var(--navy-700); color: var(--text-primary); border-color: var(--border-light); }

.btn-success  { background: var(--green);  color: var(--navy-950); border-color: var(--green); }
.btn-success:hover  { background: var(--green-dim); }
.btn-danger   { background: var(--red);    color: #fff; border-color: var(--red); }
.btn-danger:hover   { background: var(--red-dim); }
.btn-warning  { background: var(--amber);  color: var(--navy-950); border-color: var(--amber); }
.btn-warning:hover  { background: var(--amber-dim); }

.btn-outline {
  background: transparent;
  color: var(--cyan);
  border-color: var(--cyan-dim);
}
.btn-outline:hover { background: var(--cyan-glow); }

/*
.btn-sm { padding: 6px 12px; font-size: 12px; }
*/
.btn-sm { padding: 6px 3px; font-size: 12px; }



.btn-lg { padding: 12px 24px; font-size: 15px; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* ─────────────────────────────────────────────
   CARDS
   ───────────────────────────────────────────── */
.card {
  display: block;
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

/*
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}
*/
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 24px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}


.card-title {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.card-title i { color: var(--cyan); }

.card-body { padding: 24px; }
.card-footer { padding: 16px 24px; border-top: 1px solid var(--border); }

/* Stat Cards */

/*
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}
*/

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin-bottom: 20px;
}


.stat-card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 5px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
  text-align: center;
}

.stat-card:hover { border-color: var(--border-light); transform: translateY(-2px); }
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--card-accent, var(--cyan));
}


/*
.stat-icon {
  width: 46px; height: 46px;
  background: var(--card-accent-bg, var(--cyan-glow));
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  color: var(--card-accent, var(--cyan));
  margin-bottom: 16px;
}
*/
.stat-icon {
  width: 46px; height: 30px;
  background: var(--card-accent-bg, var(--cyan-glow));
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  color: var(--card-accent, var(--cyan));
  margin-bottom: 0px;
}

/*
.stat-value {
  font-family: var(--font-mono);
  font-size: 30px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }

.stat-delta {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  margin-top: 8px;
  padding: 2px 8px;
  border-radius: 20px;
}
*/
.stat-value {
  font-family: var(--font-mono);
  font-size: 20px;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label { font-size: 14px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }

.stat-delta {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 12px;
  margin-top: 6px;
  padding: 2px 8px;
  border-radius: 20px;
}


.stat-delta.up   { color: var(--green); background: rgba(38,222,129,0.1); }
.stat-delta.down { color: var(--red);   background: rgba(252,92,101,0.1); }

/* ─────────────────────────────────────────────
   TABLES
   ───────────────────────────────────────────── */
.table-wrapper { overflow-x: auto; }

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}

.data-table th {
  padding: 12px 16px;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table th.sortable { cursor: pointer; user-select: none; }
.data-table th.sortable:hover { color: var(--text-primary); }
.data-table th .sort-icon { margin-left: 4px; opacity: 0.5; }
.data-table th.sorted-asc .sort-icon::after   { content: ' ↑'; opacity:1; color:var(--cyan); }
.data-table th.sorted-desc .sort-icon::after  { content: ' ↓'; opacity:1; color:var(--cyan); }

/*
.data-table td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  vertical-align: middle;
}
*/

.data-table td {
  padding: 5px 8px;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  vertical-align: middle;
}

.data-table tbody tr { transition: background var(--transition); }
.data-table tbody tr:hover { background: var(--navy-800); }
.data-table tbody tr:last-child td { border-bottom: none; }

.data-table .mono { font-family: var(--font-mono); color: var(--text-primary); }
.data-table .text-primary { color: var(--text-primary); font-weight: 500; }
.data-table .text-right { text-align: right; }

/* ─────────────────────────────────────────────
   STATUS PILLS
   ───────────────────────────────────────────── */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  font-family: var(--font-mono);
  white-space: nowrap;
}
.pill-success { background: rgba(38,222,129,0.15); color: var(--green); }
.pill-danger  { background: rgba(252,92,101,0.15); color: var(--red); }
.pill-warning { background: rgba(247,183,49,0.15);  color: var(--amber); }
.pill-info    { background: rgba(0,212,255,0.12);   color: var(--cyan); }
.pill-muted   { background: rgba(74,106,136,0.2);   color: var(--text-muted); }
.pill-purple  { background: rgba(165,94,234,0.15);  color: var(--purple); }
.pill i { font-size: 9px; }

/* ─────────────────────────────────────────────
   FORMS
   ───────────────────────────────────────────── */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.full { grid-column: 1 / -1; }



/*
label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
}

.form-control {
  background: var(--navy-800);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 13.5px;
  transition: all var(--transition);
  outline: none;
  width: 100%;
}
*/
label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
  margin: 3px 0px -7px 5px;
}


.form-control {
  background: #f0f6ff;
  border: 1px solid #3d8be9;
  border-radius: var(--radius);
  padding: 2px 4px;
  color: var(--text-primary);
  font-size: 13px;
  transition: all var(--transition);
  outline: none;
  width: 100%;
}


.form-control:focus {
  border-color: var(--cyan-dim);
  box-shadow: 0 0 0 3px var(--cyan-glow);
  background: var(--surface-1);
}
.form-control::placeholder { color: var(--text-muted); }
.form-control:disabled { opacity: 0.5; cursor: not-allowed; }

select.form-control { cursor: pointer; }
textarea.form-control { min-height: 100px; resize: vertical; }

.form-hint { font-size: 11px; color: var(--text-muted); }
.form-error { font-size: 11px; color: var(--red); }

.input-group {
  display: flex;
  align-items: stretch;
}
.input-group .form-control { border-radius: var(--radius) 0 0 var(--radius); }
.input-group .btn { border-radius: 0 var(--radius) var(--radius) 0; flex-shrink: 0; }
.input-addon {
  background: var(--navy-700);
  border: 1px solid var(--border);
  border-right: none;
  padding: 10px 14px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 13px;
  border-radius: var(--radius) 0 0 var(--radius);
  white-space: nowrap;
  display:flex;align-items:center;
}

/* ─────────────────────────────────────────────
   MODAL
   ───────────────────────────────────────────── */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(5,13,26,0.8);
  backdrop-filter: blur(4px);
  z-index: 400;
  display: none;
}
.modal-backdrop.show { display: block; }

.modal {
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%) scale(0.95);
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  z-index: 500;
  width: min(90vw, 680px);
  max-height: 90vh;
  display: flex; flex-direction: column;
  opacity: 0;
  pointer-events: none;
  transition: all 0.2s ease;
}
.modal.show { opacity: 1; pointer-events: auto; transform: translate(-50%, -50%) scale(1); }
.modal.modal-lg { width: min(90vw, 960px); }

.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.modal-title { font-family: var(--font-mono); font-size: 15px; font-weight: 600; color: var(--text-primary); }
.modal-close {
  background: none; border: none; color: var(--text-muted);
  font-size: 20px; line-height: 1; cursor: pointer;
  width: 30px; height: 30px; border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.modal-close:hover { color: var(--text-primary); background: var(--navy-800); }
.modal-body { flex: 1; overflow-y: auto; padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--border); display: flex; gap: 10px; justify-content: flex-end; }

/* ─────────────────────────────────────────────
   CHARTS
   ───────────────────────────────────────────── */
.chart-container { position: relative; }
.chart-container canvas { max-width: 100%; }

/* ─────────────────────────────────────────────
   PAGINATION
   ───────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 12px;
}
.pagination-info { font-size: 13px; color: var(--text-muted); }
.pagination-controls,
.pagination-links { display: flex; gap: 4px; flex-wrap: wrap; }
.page-btn {
  min-width: 34px; height: 34px;
  background: var(--navy-800);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 13px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  padding: 0 8px;
  transition: all var(--transition);
}
.page-btn:hover { background: var(--navy-700); color: var(--text-primary); }
.page-btn.active { background: var(--cyan); color: var(--navy-950); border-color: var(--cyan); font-weight: 600; }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ─────────────────────────────────────────────
   FILTERS / TOOLBAR
   ───────────────────────────────────────────── */
.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.toolbar-search {
  position: relative;
  flex: 1;
  min-width: 200px;
  max-width: 340px;
}
.toolbar-search i { position: absolute; left: 12px; top: 50%; transform: translateY(-50%); color: var(--text-muted); pointer-events: none; }
.toolbar-search input {
  background: var(--navy-800);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 14px 8px 36px;
  color: var(--text-primary);
  font-size: 13px;
  width: 100%;
  outline: none;
  transition: all var(--transition);
}
.toolbar-search input:focus { border-color: var(--cyan-dim); box-shadow: 0 0 0 3px var(--cyan-glow); }

.toolbar-select {
  background: var(--navy-800);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 12px;
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  outline: none;
  transition: all var(--transition);
}
.toolbar-select:focus { border-color: var(--cyan-dim); }

/* ─────────────────────────────────────────────
   STOCK INDICATOR
   ───────────────────────────────────────────── */
.stock-bar {
  height: 6px;
  background: var(--navy-700);
  border-radius: 3px;
  overflow: hidden;
  width: 80px;
}
.stock-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.6s ease;
}
.stock-bar-fill.good    { background: var(--green); }
.stock-bar-fill.warning { background: var(--amber); }
.stock-bar-fill.danger  { background: var(--red); }
.stock-bar-fill.empty   { background: var(--text-muted); width: 100% !important; opacity: 0.3; }

/* ─────────────────────────────────────────────
   ALERTS / NOTICES
   ───────────────────────────────────────────── */
.alert-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  border-radius: var(--radius);
  margin-bottom: 8px;
  border: 1px solid transparent;
  transition: all var(--transition);
}
.alert-item.critical { background: rgba(252,92,101,0.08); border-color: rgba(252,92,101,0.25); }
.alert-item.warning  { background: rgba(247,183,49,0.08);  border-color: rgba(247,183,49,0.25); }
.alert-item.info     { background: rgba(0,212,255,0.06);   border-color: rgba(0,212,255,0.2); }

.alert-icon { font-size: 18px; margin-top: 2px; }
.alert-item.critical .alert-icon { color: var(--red); }
.alert-item.warning  .alert-icon { color: var(--amber); }
.alert-item.info     .alert-icon { color: var(--cyan); }

.alert-content { flex: 1; }
.alert-title { font-weight: 600; font-size: 13.5px; color: var(--text-primary); margin-bottom: 2px; }
.alert-meta  { font-family: var(--font-mono); font-size: 11px; color: var(--text-muted); }
.alert-actions { display: flex; gap: 8px; margin-top: 8px; }

/* ─────────────────────────────────────────────
   LOADING / SKELETON
   ───────────────────────────────────────────── */
.loading-spinner {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: 13px;
}
.spinner {
  width: 18px; height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--cyan);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.skeleton {
  background: linear-gradient(90deg, var(--navy-800) 25%, var(--navy-700) 50%, var(--navy-800) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius);
}
@keyframes shimmer { to { background-position: -200% 0; } }

/* ─────────────────────────────────────────────
   BARCODE SPECIFIC
   ───────────────────────────────────────────── */
.barcode-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 20px;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
}
.barcode-card svg { max-width: 220px; }
.barcode-label { font-family: var(--font-mono); font-size: 11px; color: #333; text-align: center; }

.scanner-viewport {
  position: relative;
  width: 100%; max-width: 480px;
  background: #000;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 2px solid var(--cyan);
  box-shadow: 0 0 30px var(--cyan-glow);
}
.scanner-viewport video { width: 100%; display: block; }
.scanner-crosshair {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  pointer-events: none;
}
.scanner-crosshair::before, .scanner-crosshair::after {
  content: '';
  position: absolute;
  width: 60%; height: 60%;
  border: 2px solid var(--cyan);
  border-radius: 4px;
  box-shadow: 0 0 20px var(--cyan-glow);
  animation: scanPulse 2s ease-in-out infinite;
}
@keyframes scanPulse { 0%,100%{opacity:0.6}50%{opacity:1;box-shadow:0 0 30px var(--cyan-glow)} }

/* ─────────────────────────────────────────────
   EMPTY STATE
   ───────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 24px;
  color: var(--text-muted);
}
.empty-state i { font-size: 48px; margin-bottom: 16px; opacity: 0.4; }
.empty-state h3 { font-family: var(--font-mono); font-size: 16px; color: var(--text-secondary); margin-bottom: 8px; }
.empty-state p  { font-size: 13px; max-width: 320px; margin: 0 auto 20px; }

/* ─────────────────────────────────────────────
   DASHBOARD GRID
   ───────────────────────────────────────────── */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  grid-template-rows: auto;
  gap: 24px;
}
.dashboard-grid .col-2 { grid-column: span 2; }
.dashboard-grid .col-3 { grid-column: span 3; }

/* ─────────────────────────────────────────────
   RESPONSIVE
   ───────────────────────────────────────────── */
@media (max-width: 1200px) {
  .dashboard-grid { grid-template-columns: 1fr 1fr; }
  .dashboard-grid .col-2 { grid-column: span 2; }
  .dashboard-grid .col-3 { grid-column: span 2; }
}

@media (max-width: 900px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.mobile-open { transform: translateX(0); }
  .main-content { margin-left: 0 !important; }
  .dashboard-grid { grid-template-columns: 1fr; }
  .dashboard-grid .col-2, .dashboard-grid .col-3 { grid-column: span 1; }
  .page-content { padding: 16px; }
  .topbar { padding: 0 16px; }
  .global-search input { width: 180px; }
}

@media (max-width: 600px) {
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .page-header { flex-direction: column; align-items: flex-start; }
}

/* ─────────────────────────────────────────────
   UTILITY
   ───────────────────────────────────────────── */
.text-mono    { font-family: var(--font-mono); }
.text-cyan    { color: var(--cyan); }
.text-green   { color: var(--green); }
.text-red     { color: var(--red); }
.text-amber   { color: var(--amber); }
.text-muted   { color: var(--text-muted); }
.text-right   { text-align: right; }
.text-center  { text-align: center; }
.text-sm      { font-size: 12px; }
.text-xs      { font-size: 11px; }
.fw-600       { font-weight: 600; }
.mt-4         { margin-top: 4px; }
.mt-8         { margin-top: 8px; }
.mt-16        { margin-top: 16px; }
.mt-24        { margin-top: 24px; }
.mb-16        { margin-bottom: 16px; }
.mb-24        { margin-bottom: 24px; }
.d-flex       { display: flex; }
.align-center { align-items: center; }
.gap-8        { gap: 8px; }
.gap-12       { gap: 12px; }
.gap-16       { gap: 16px; }
.flex-1       { flex: 1; }
.w-100        { width: 100%; }
.hidden       { display: none !important; }
.divider      { height: 1px; background: var(--border); margin: 20px 0; }