/*
 * Copyright (c) 2026 Adrian Warren.
 * All Rights Reserved.
 *
 * Unauthorized copying, modification, distribution,
 * or use of this software is prohibited.
 */

/* =============================================
   InvTrack — Industrial Utilitarian Theme
   IBM Plex Mono / IBM Plex Sans
   ============================================= */

:root {
  --bg:          #0f1117;
  --bg-card:     #161b25;
  --bg-input:    #1c2333;
  --bg-hover:    #1e2535;
  --border:      #2a3348;
  --border-light:#334160;

  --text:        #e2e8f0;
  --text-muted:  #64748b;
  --text-dim:    #94a3b8;

  --accent:      #3b82f6;
  --accent-dim:  #1d4ed8;
  --accent-glow: rgba(59,130,246,0.15);

  --expired:     #ef4444;
  --expired-bg:  rgba(239,68,68,0.12);
  --warning:     #f59e0b;
  --warning-bg:  rgba(245,158,11,0.12);
  --critical:    #f97316;
  --critical-bg: rgba(249,115,22,0.12);
  --ok:          #22c55e;
  --ok-bg:       rgba(34,197,94,0.10);

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

  --radius:  4px;
  --radius-lg: 8px;
  --shadow:  0 2px 8px rgba(0,0,0,0.4);
}

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

html { font-size: 14px; }

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ==================== NAVBAR ==================== */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 52px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  gap: 1rem;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text);
}
.brand-icon {
  font-size: 1.3rem;
  color: var(--accent);
  line-height: 1;
}
.brand-name {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.05em;
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 0.25rem;
  flex: 1;
  padding-left: 2rem;
}
.nav-links a {
  padding: 0.35rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: var(--radius);
  border: 1px solid transparent;
  transition: all 0.15s;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: var(--bg-hover);
  border-color: var(--border);
}
.nav-links a.active {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-glow);
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.user-badge {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}
.user-icon { color: var(--accent); }
.user-role {
  font-size: 0.7rem;
  color: var(--text-muted);
  background: var(--bg-input);
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}
.btn-logout {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0.25rem 0.7rem;
  font-size: 0.75rem;
  font-family: var(--font-sans);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.15s;
}
.btn-logout:hover {
  border-color: var(--expired);
  color: var(--expired);
}

/* ==================== PAGE WRAPPER ==================== */
.page-wrapper {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem 2rem 3rem;
}

/* ==================== PAGE HEADER ==================== */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 1.5rem;
  gap: 1rem;
}
.page-title {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
}
.page-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}
.page-actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}
.breadcrumb {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--accent); }

/* ==================== BUTTONS ==================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 1rem;
  font-size: 0.8rem;
  font-family: var(--font-sans);
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s;
  white-space: nowrap;
  letter-spacing: 0.02em;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-dim);
  text-decoration: none;
  color: #fff;
}
.btn-outline {
  background: transparent;
  color: var(--text-dim);
  border-color: var(--border);
}
.btn-outline:hover {
  background: var(--bg-hover);
  border-color: var(--border-light);
  color: var(--text);
  text-decoration: none;
}
.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-muted);
  padding: 0.3rem 0.5rem;
}
.btn-ghost:hover {
  background: var(--bg-hover);
  color: var(--text);
  text-decoration: none;
}
.btn-danger-ghost:hover {
  color: var(--expired) !important;
  background: var(--expired-bg) !important;
}
.btn-sm { padding: 0.25rem 0.65rem; font-size: 0.75rem; }
.btn-full { width: 100%; justify-content: center; }

/* ==================== CARDS ==================== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.25rem;
  border-bottom: 1px solid var(--border);
  gap: 1rem;
}
.card-header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.card-header h3 {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: 0.03em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.card-header-danger { border-left: 3px solid var(--expired); }
.card-header-warning { border-left: 3px solid var(--warning); }
.card-body { padding: 1.25rem; }
.card-body.p-0 { padding: 0; }
.card-scroll { max-height: 260px; overflow-y: auto; }
.card-full { grid-column: 1 / -1; }
.mt-4 { margin-top: 1.5rem; }

/* ==================== STATS ==================== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.65rem;
  margin-bottom: 1.25rem;
}
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  position: relative;
  overflow: hidden;
}
.stat-card-compact {
  padding: 0.6rem 0.9rem;
}
.stat-card-inner {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}
.stat-card-compact .stat-icon {
  font-size: 1.1rem;
  margin-bottom: 0;
  flex-shrink: 0;
}
.stat-card-compact .stat-value {
  font-size: 1.4rem;
  margin-bottom: 0;
}
.stat-card-compact .stat-label {
  font-size: 0.68rem;
  white-space: nowrap;
}
.stat-card-compact .stat-link {
  margin-top: 0.3rem;
  display: block;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--border-light);
}
.stat-card.stat-alert::before { background: var(--expired); }
.stat-card.stat-warn::before { background: var(--warning); }
.stat-icon {
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}
.stat-value {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1;
  margin-bottom: 0.25rem;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}
.stat-link {
  display: inline-block;
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  text-decoration: none;
}
.stat-link:hover { color: var(--accent); }

/* ==================== DASHBOARD GRID ==================== */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 900px) {
  .dashboard-grid { grid-template-columns: 1fr; }
}

/* ==================== ALERT BANNERS ==================== */
.alert-banners-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}
.alert-banner {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius);
  font-size: 0.8rem;
  border: 1px solid;
  flex: 1 1 auto;
  white-space: nowrap;
}
.alert-banner a { font-weight: 600; }
.alert-expired {
  background: var(--expired-bg);
  border-color: var(--expired);
  color: #fca5a5;
}
.alert-expired a { color: var(--expired); }
.alert-warning {
  background: var(--warning-bg);
  border-color: var(--warning);
  color: #fcd34d;
}
.alert-warning a { color: var(--warning); }
.alert-icon { font-size: 1rem; }

.flash-messages { margin-bottom: 1rem; }
.flash {
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
  border: 1px solid;
}
.flash-success { background: var(--ok-bg); border-color: var(--ok); color: #86efac; }
.flash-warning { background: var(--warning-bg, #422006); border-color: var(--warning, #f59e0b); color: #fcd34d; }
.flash-error {
  background: var(--expired-bg);
  border-color: var(--expired);
  color: #fca5a5;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

/* ==================== TABLES ==================== */
.table-responsive { overflow-x: auto; }
.inventory-table-scroll,
.audit-table-scroll,
.recent-activity-scroll {
  max-height: 230px;
  overflow-y: auto;
  scrollbar-gutter: stable;
}
.expired-items-scroll {
  max-height: 250px;
  overflow-y: auto;
  scrollbar-gutter: stable;
  padding: 0 1.25rem 1rem;
}
.expired-items-scroll .table thead th {
  position: sticky;
  top: 0;
  z-index: 4;
  background: var(--bg-card);
}
.inventory-table-scroll .table thead th,
.audit-table-scroll .table thead th,
.recent-activity-scroll .table thead th {
  position: sticky;
  top: 0;
  z-index: 3;
  background: var(--bg-card);
}
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}
.table th {
  padding: 0.6rem 1rem;
  text-align: left;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
.table th a {
  color: var(--text-muted);
  text-decoration: none;
}
.table th a:hover { color: var(--accent); }
.table th .sort-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}
.table th .sort-label {
  line-height: 1;
}
.table th .sort-indicator {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1;
  opacity: 0.2;
  transition: opacity 0.15s, color 0.15s;
}
.table th .sort-indicator.active {
  opacity: 1;
  color: var(--accent);
}
.table th .sort-link:hover .sort-indicator {
  color: var(--accent);
  opacity: 0.75;
}
.table th .sort-link:hover .sort-indicator.active {
  opacity: 1;
}
.table td {
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text);
  vertical-align: middle;
}
.table-hover tbody tr:hover td { background: var(--bg-hover); }
.table-compact th, .table-compact td { padding: 0.45rem 0.85rem; }

.row-expired td { background: rgba(239,68,68,0.06) !important; }
.row-expired:hover td { background: rgba(239,68,68,0.12) !important; }
.row-critical td { background: rgba(249,115,22,0.06) !important; }
.row-critical:hover td { background: rgba(249,115,22,0.12) !important; }
.row-warning td { background: rgba(245,158,11,0.04) !important; }
.row-warning:hover td { background: rgba(245,158,11,0.08) !important; }
.row-kit td { background: rgba(99,102,241,0.04) !important; }
.row-kit:hover td { background: rgba(99,102,241,0.09) !important; }
.badge-kit {
    display: inline-block;
    font-size: .65rem;
    font-weight: 600;
    padding: 1px 5px;
    border-radius: 3px;
    background: rgba(99,102,241,0.15);
    color: #6366f1;
    letter-spacing: .04em;
    vertical-align: middle;
}

.item-link {
  color: var(--text);
  font-weight: 500;
  text-decoration: none;
}
.item-link:hover { color: var(--accent); text-decoration: none; }
.actions-cell { white-space: nowrap; }

/* ==================== STATUS BADGES ==================== */
.status-badge {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  border-radius: var(--radius);
  border: 1px solid;
  white-space: nowrap;
}
.status-expired { color: var(--expired); border-color: var(--expired); background: var(--expired-bg); }
.status-critical { color: var(--critical); border-color: var(--critical); background: var(--critical-bg); }
.status-warning { color: var(--warning); border-color: var(--warning); background: var(--warning-bg); }
.status-ok { color: var(--ok); border-color: var(--ok); background: var(--ok-bg); }
.status-none { color: var(--text-muted); border-color: var(--border); background: transparent; }

.badge {
  display: inline-block;
  padding: 0.15rem 0.45rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  border-radius: var(--radius);
}
.badge-success { background: var(--ok-bg); color: var(--ok); }
.badge-danger { background: var(--expired-bg); color: var(--expired); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-info { background: var(--accent-glow); color: var(--accent); }
.badge-default { background: var(--bg-input); color: var(--text-muted); }

.role-badge {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  border-radius: var(--radius);
  border: 1px solid;
}
.role-admin { color: #c084fc; border-color: #7e22ce; background: rgba(124,58,237,0.12); }
.role-manager { color: var(--accent); border-color: var(--accent-dim); background: var(--accent-glow); }
.role-user { color: var(--ok); border-color: #166534; background: var(--ok-bg); }

.days-badge {
  display: inline-block;
  padding: 0.2rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius);
}
.days-critical { color: var(--critical); background: var(--critical-bg); }
.days-warning { color: var(--warning); background: var(--warning-bg); }

/* ==================== FILTER BAR ==================== */
.filter-bar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}
.filter-form { margin-bottom: 0.75rem; }
.filter-row {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}
.filter-search { flex: 1; min-width: 200px; }
.filter-select { min-width: 130px; }
.multi-select {
  position: relative;
  min-width: 170px;
}
.multi-select[open] { z-index: 20; }
.multi-select-trigger {
  list-style: none;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 0.55rem 2rem 0.55rem 0.85rem;
  font-size: 0.85rem;
  cursor: pointer;
  min-height: 38px;
  display: flex;
  align-items: center;
  position: relative;
}
.multi-select-trigger::after {
  content: '▾';
  position: absolute;
  right: 0.7rem;
  color: var(--text-muted);
  font-size: 0.75rem;
}
.multi-select[open] .multi-select-trigger {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.multi-select > summary::-webkit-details-marker { display: none; }
.multi-select-menu {
  position: absolute;
  top: calc(100% + 0.25rem);
  left: 0;
  right: 0;
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  max-height: 220px;
  overflow-y: auto;
  padding: 0.35rem;
}
.multi-select-option {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.45rem;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--text-dim);
}
.multi-select-option:hover {
  background: var(--bg-hover);
  color: var(--text);
}
.multi-select-option input[type="checkbox"] {
  accent-color: var(--accent);
}
.export-bar {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid var(--border);
  font-size: 0.75rem;
}
.export-label { color: var(--text-muted); }

/* ==================== FORMS ==================== */
.form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}
.main-form {}
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem 1.5rem;
}
.form-col-2 { grid-column: 1 / -1; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-dim);
  letter-spacing: 0.03em;
}
.form-control {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 0.55rem 0.85rem;
  font-size: 0.85rem;
  font-family: var(--font-sans);
  width: 100%;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-control.is-invalid { border-color: var(--expired); }
.form-control::placeholder { color: var(--text-muted); }
textarea.form-control { resize: vertical; }
select.form-control { appearance: auto; }
input[type="date"].form-control { color-scheme: dark; }

/* .form-input — used by transaction/batch templates; identical to .form-control */
.form-input {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 0.55rem 0.85rem;
  font-size: 0.85rem;
  font-family: var(--font-sans);
  width: 100%;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.form-input.is-invalid { border-color: var(--expired); }
.form-input::placeholder { color: var(--text-muted); }
textarea.form-input { resize: vertical; }
select.form-input   { appearance: auto; color-scheme: dark; }

.form-hint { font-size: 0.72rem; color: var(--text-muted); margin-top: 0.1rem; }
.invalid-feedback { font-size: 0.72rem; color: var(--expired); }
.required { color: var(--expired); }

.form-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.toggle-row { display: flex; align-items: center; gap: 0.5rem; }
.toggle-input { width: auto; }

/* ==================== DETAIL VIEW ==================== */
.detail-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1rem;
}
@media (max-width: 800px) { .detail-grid { grid-template-columns: 1fr; } }
.detail-main {}
.detail-meta {}
.detail-list { display: flex; flex-direction: column; gap: 0; }
.detail-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--border);
  align-items: baseline;
}
.detail-row:last-child { border-bottom: none; }
.detail-row dt {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.detail-row dd { font-size: 0.88rem; color: var(--text); }

/* ==================== PAGINATION ==================== */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}
.page-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.7rem;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.15s;
}
.page-btn:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.page-btn.active { background: var(--accent); border-color: var(--accent); color: #fff; }
.page-btn.disabled { opacity: 0.3; pointer-events: none; }
.page-ellipsis { color: var(--text-muted); padding: 0 0.25rem; }
.page-info { font-size: 0.78rem; color: var(--text-muted); padding: 0 0.5rem; }

/* ==================== MODAL ==================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}
.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 520px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
}
.modal-header h3 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
}
.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  padding: 0.25rem;
}
.modal-close:hover { color: var(--text); }
.modal-body { padding: 1.5rem; }
.import-form .form-actions { margin-top: 1.25rem; padding-top: 1rem; }
.code-block {
  display: block;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  margin: 0.75rem 0;
  white-space: pre-wrap;
  word-break: break-all;
}

/* ==================== LOGIN PAGE ==================== */
.login-body {
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  align-items: stretch;
}
.login-container {
  display: flex;
  width: 100%;
  min-height: 100vh;
}
.login-panel {
  width: 420px;
  flex-shrink: 0;
  padding: 3rem 2.5rem;
  background: var(--bg-card);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}
.login-header { text-align: center; margin-bottom: 0.5rem; }
.login-logo {
   display: flex;
   justify-content: center;
   align-items: center;
   margin-bottom: 1rem;
   min-height: 120px;
}
.login-logo img {
   max-width: 180px;
   width: 100%;
   height: auto;
   object-fit: contain;
   display: block;
}
.login-header h1 {
  font-family: var(--font-mono);
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: 0.05em;
}
.login-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  letter-spacing: 0.04em;
}
.login-form { display: flex; flex-direction: column; gap: 1rem; }
.badge-readonly {
  display: inline-block;
  font-size: 0.65rem;
  padding: 0.1rem 0.4rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-muted);
  margin-left: 0.25rem;
  font-family: var(--font-mono);
}
.login-footer {
  margin-top: 1rem;
  padding: 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.75rem;
  color: var(--text-muted);
}
.login-page-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  padding: .6rem 1rem;
  font-size: .7rem;
  font-family: var(--font-mono);
  letter-spacing: .03em;
  color: var(--text-muted);
  opacity: .55;
  pointer-events: none;
}
.account-hints {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  line-height: 1.8;
  margin-top: 0.5rem;
  color: var(--text-dim);
}
.account-hints code {
  background: var(--bg-card);
  padding: 0.1rem 0.3rem;
  border-radius: 2px;
  border: 1px solid var(--border);
}

/* Login art panel */
.login-art {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  padding: 3rem;
  background: var(--bg);
  position: relative;
  overflow: hidden;
}
.login-art::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 60% 40%, rgba(59,130,246,0.07) 0%, transparent 60%);
}
.art-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.75rem;
  max-width: 420px;
  position: relative;
}
.art-cell {
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-align: center;
  border: 1px solid;
  animation: art-pulse 4s ease-in-out infinite;
}
.art-cell:nth-child(2) { animation-delay: 0.5s; }
.art-cell:nth-child(3) { animation-delay: 1s; }
.art-cell:nth-child(4) { animation-delay: 1.5s; }
.art-cell:nth-child(5) { animation-delay: 2s; }
.art-cell:nth-child(6) { animation-delay: 2.5s; }
.art-cell.expired { color: var(--expired); border-color: var(--expired); background: var(--expired-bg); }
.art-cell.warning { color: var(--warning); border-color: var(--warning); background: var(--warning-bg); }
.art-cell.ok { color: var(--ok); border-color: var(--ok); background: var(--ok-bg); }
@keyframes art-pulse {
  0%, 100% { opacity: 0.6; transform: translateY(0); }
  50% { opacity: 1; transform: translateY(-2px); }
}
.art-tagline {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  position: relative;
}

/* Alert styles (form-level) */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: 0.82rem;
  border: 1px solid;
}
.alert-error { background: var(--expired-bg); border-color: var(--expired); color: #fca5a5; }
.alert-success { background: var(--ok-bg); border-color: var(--ok); color: #86efac; }

/* ==================== UTILITIES ==================== */
.mono { font-family: var(--font-mono); }
.text-small { font-size: 0.78rem; }
.text-muted { color: var(--text-muted) !important; }

/* Quantity history delta colours */
.qty-increase { color: var(--ok);      font-weight: 600; }
.qty-decrease { color: var(--expired); font-weight: 600; }
.qty-neutral  { color: var(--text-muted); }
.text-danger { color: var(--expired) !important; }
.text-warning { color: var(--warning) !important; }
.text-center { text-align: center; }
.text-truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.py-4 { padding-top: 1.5rem; padding-bottom: 1.5rem; }

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
  .page-wrapper { padding: 1rem; }
  .navbar { padding: 0 1rem; }
  .nav-links { display: none; }
  .form-grid { grid-template-columns: 1fr; }
  .form-col-2 { grid-column: 1; }
  .filter-row { flex-direction: column; }
  .filter-search, .filter-select, .multi-select { width: 100%; }
  .login-art { display: none; }
  .login-panel { width: 100%; border-right: none; }
}

/* ==================== FOOTER ==================== */
.site-footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border);
  margin-top: 2rem;
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
}
.footer-sep {
  color: var(--border);
}
.footer-version {
  background: rgba(59,130,246,.12);
  color: var(--accent);
  border: 1px solid rgba(59,130,246,.25);
  border-radius: 4px;
  padding: .1rem .4rem;
  font-size: .7rem;
  letter-spacing: .04em;
}

/* ==================== SCROLLBAR ==================== */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ==================== TRANSACTION BADGES ==================== */
.badge {
  display: inline-block;
  padding: .2rem .55rem;
  border-radius: 4px;
  font-size: .78rem;
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
}
.badge-gray   { background: #6b7280; color: #fff; }
.badge-yellow { background: #d97706; color: #fff; }
.badge-green  { background: #16a34a; color: #fff; }
.badge-red    { background: #dc2626; color: #fff; }
.badge-blue   { background: #2563eb; color: #fff; }
.badge-orange { background: #ea580c; color: #fff; }

/* ==================== FORM HELPERS ==================== */
.form-section-title {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
  margin: 1rem 0 .5rem;
  padding-bottom: .25rem;
  border-bottom: 1px solid var(--border-light);
}

.form-hint {
  font-size: .8rem;
  color: var(--text-muted);
  margin-top: .25rem;
}

.required { color: #dc2626; }

.btn-warning {
  background: #d97706;
  color: #fff;
}
.btn-warning:hover { background: #b45309; }

.btn-danger {
  background: #dc2626;
  color: #fff;
}
.btn-danger:hover { background: #b91c1c; }

/* empty state in table */
.empty-state {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  font-style: italic;
}

/* link in table */
.link-primary {
  color: var(--primary);
  text-decoration: none;
  font-weight: 500;
}
.link-primary:hover { text-decoration: underline; }

/* form row */
.form-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.form-row .form-group { flex: 1; min-width: 140px; }

/* ── main-content wrapper (transaction / detail pages) ── */
.main-content {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem 2rem 3rem;
}

/* filter tabs */
.filter-tabs { display: flex; gap: .5rem; flex-wrap: wrap; }
.filter-tabs .btn-ghost.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

/* ── Custom modal dialog ──────────────────────────────────────────────────── */
#inv-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  z-index: 9000;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(2px);
}
#inv-modal-overlay.inv-modal-visible {
  display: flex;
}
#inv-modal-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
  width: min(440px, 92vw);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  animation: inv-modal-in 0.15s ease;
}
@keyframes inv-modal-in {
  from { opacity: 0; transform: scale(0.95) translateY(-6px); }
  to   { opacity: 1; transform: scale(1)    translateY(0);    }
}
#inv-modal-header {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: 'IBM Plex Sans', sans-serif;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
}
#inv-modal-icon {
  font-size: 1.1rem;
  line-height: 1;
  color: var(--warning);
  min-width: 1.2rem;
}
#inv-modal-body {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.55;
  padding: 0 0.1rem;
}
#inv-modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 0.6rem;
  margin-top: 0.25rem;
}
.inv-modal-btn {
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.45rem 1.1rem;
  border-radius: 5px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.inv-modal-btn-primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.inv-modal-btn-primary:hover {
  background: var(--accent-dim);
  border-color: var(--accent-dim);
}
.inv-modal-btn-danger {
  background: var(--expired);
  color: #fff;
  border-color: var(--expired);
}
.inv-modal-btn-danger:hover {
  background: #c53030;
  border-color: #c53030;
}
#inv-modal-cancel {
  background: transparent;
  color: var(--text-muted);
  border-color: var(--border);
}
#inv-modal-cancel:hover {
  background: var(--bg-hover);
  color: var(--text);
  border-color: var(--border-light);
}