/* ===========================
   Inventory System - Components CSS
   =========================== */

/* ── Forms ── */
.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: .85rem; font-weight: 600; color: var(--text); margin-bottom: 6px; }
.form-label .req { color: var(--danger); margin-left: 2px; }

.form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: .9rem;
  color: var(--text);
  background: var(--surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  font-family: var(--font);
}
.form-control:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--focus-ring);
}
.form-control::placeholder { color: var(--text-light); }
textarea.form-control { resize: vertical; min-height: 100px; }
.form-control.is-invalid { border-color: var(--danger); }
.form-text { font-size: .78rem; color: var(--text-muted); margin-top: 4px; }
.invalid-feedback { font-size: .78rem; color: var(--danger); margin-top: 4px; }

.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
.form-full { grid-column: 1 / -1; }

/* Switcher / Toggle */
.switcher { display: flex; align-items: center; gap: 10px; cursor: pointer; }
.switcher input { display: none; }
.switcher-track {
  width: 44px; height: 24px;
  background: var(--border);
  border-radius: 99px;
  position: relative;
  transition: background var(--transition);
  flex-shrink: 0;
}
.switcher-track::after {
  content: '';
  position: absolute;
  width: 18px; height: 18px;
  background: #fff;
  border-radius: 50%;
  top: 3px; left: 3px;
  transition: transform var(--transition);
  box-shadow: 0 1px 3px rgba(0,0,0,.2);
}
.switcher input:checked + .switcher-track { background: var(--primary); }
.switcher input:checked + .switcher-track::after { transform: translateX(20px); }
.switcher-label { font-size: .875rem; font-weight: 500; color: var(--text); }

/* File Upload */
.file-upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
}
.file-upload-zone:hover, .file-upload-zone.drag-over {
  border-color: var(--primary);
  background: var(--primary-light);
}
.file-upload-zone input[type="file"] {
  position: absolute; inset: 0; opacity: 0; cursor: pointer;
}
.file-upload-icon { font-size: 2.5rem; margin-bottom: 8px; }
.file-upload-text { font-size: .875rem; color: var(--text-muted); }
.file-upload-text strong { color: var(--primary); }
.file-upload-hint { font-size: .75rem; color: var(--text-light); margin-top: 4px; }

/* Select */
.form-select {
  width: 100%;
  padding: 10px 36px 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-size: .9rem;
  color: var(--text);
  background: var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B7280' stroke-width='2'%3E%3Cpolyline points='6,9 12,15 18,9'/%3E%3C/svg%3E") no-repeat right 10px center;
  -webkit-appearance: none;
  appearance: none;
  outline: none;
  cursor: pointer;
  transition: border-color var(--transition);
  font-family: var(--font);
}
.form-select:focus { border-color: var(--border-focus); box-shadow: 0 0 0 3px var(--focus-ring); }

/* Multi-select tags */
.tag-select { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.tag {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 10px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 99px;
  font-size: .78rem;
  font-weight: 600;
}
.tag-remove { cursor: pointer; font-size: .65rem; opacity: .7; }
.tag-remove:hover { opacity: 1; }

/* ── Table ── */
.table-wrapper { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead th {
  padding: 12px 16px;
  text-align: left;
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tbody td {
  padding: 14px 16px;
  font-size: .875rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
  color: var(--text);
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover td { background: #fafafa; }

.table-actions { display: flex; gap: 4px; }

/* ── Badges ── */
.badge {
  display: inline-flex; align-items: center;
  padding: 3px 10px;
  border-radius: 99px;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .02em;
}
.badge-success  { background: var(--success-bg);  color: #065F46; }
.badge-warning  { background: var(--warning-bg);  color: #92400E; }
.badge-danger   { background: var(--danger-bg);   color: #991B1B; }
.badge-info     { background: var(--info-bg);     color: #1E40AF; }
.badge-default  { background: #F3F4F6; color: var(--text-muted); }
.badge-purple   { background: var(--primary-light); color: var(--primary); }

/* ── Alerts ── */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius);
  font-size: .875rem;
  margin-bottom: 20px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.alert svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 1px; }
.alert-success { background: var(--success-bg); color: #065F46; border: 1px solid #A7F3D0; }
.alert-error   { background: var(--danger-bg);  color: #991B1B; border: 1px solid #FECACA; }
.alert-warning { background: var(--warning-bg); color: #92400E; border: 1px solid #FDE68A; }
.alert-info    { background: var(--info-bg);    color: #1E40AF; border: 1px solid #BFDBFE; }

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.4);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  opacity: 0; pointer-events: none;
  transition: opacity var(--transition);
}
.modal-overlay.open { opacity: 1; pointer-events: auto; }

.modal {
  background: var(--surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(.95) translateY(20px);
  transition: transform var(--transition);
}
.modal-overlay.open .modal { transform: scale(1) translateY(0); }
.modal-lg { max-width: 800px; }

.modal-header {
  padding: 24px 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-header h3 { font-size: 1.1rem; }
.modal-close {
  width: 32px; height: 32px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: none;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.modal-close:hover { background: var(--danger-bg); border-color: var(--danger); color: var(--danger); }
.modal-body { padding: 20px 24px; }
.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  display: flex; gap: 10px; justify-content: flex-end;
}

/* ── Timeline Notes ── */
.timeline { position: relative; padding-left: 24px; }
.timeline::before { content:''; position:absolute; left:8px; top:0; bottom:0; width:2px; background:var(--border); }
.timeline-item { position: relative; margin-bottom: 20px; }
.timeline-item::before {
  content:''; position:absolute;
  left: -20px; top: 6px;
  width: 10px; height: 10px;
  background: var(--primary); border-radius: 50%;
  border: 2px solid var(--surface);
  box-shadow: 0 0 0 2px var(--primary);
}
.timeline-meta { font-size: .75rem; color: var(--text-muted); margin-bottom: 4px; }
.timeline-body {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: .875rem;
  color: var(--text);
}

/* ── Pagination ── */
.pagination { display: flex; gap: 4px; align-items: center; }
.page-btn {
  min-width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: .85rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface);
  text-decoration: none;
  transition: all var(--transition);
  cursor: pointer;
  padding: 0 10px;
}
.page-btn:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
.page-btn.active { background: var(--dark); color: #fff; border-color: var(--dark); }
.page-btn.disabled { opacity: .4; pointer-events: none; }

/* ── Empty State ── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
}
.empty-state svg { width: 64px; height: 64px; color: var(--border); margin: 0 auto 16px; display: block; }
.empty-state h3 { color: var(--text-muted); margin-bottom: 8px; }
.empty-state p { font-size: .875rem; }

/* ── Filter Bar ── */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}
.filter-bar .form-control,
.filter-bar .form-select { width: auto; flex: 1; min-width: 160px; max-width: 260px; }

/* ── Page Header ── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}
.page-header-left h1 { font-size: 1.6rem; font-weight: 700; }
.page-header-left p { font-size: .875rem; color: var(--text-muted); margin-top: 4px; }

/* ── Detail View ── */
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.detail-field { }
.detail-label { font-size: .72rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--text-muted); margin-bottom: 4px; }
.detail-value { font-size: .9rem; color: var(--text); font-weight: 500; }

/* ── 2FA Setup ── */
.qr-container { text-align: center; padding: 20px; background: var(--bg); border-radius: var(--radius-lg); margin: 16px 0; }
.qr-container img, .qr-container canvas { max-width: 200px; }
.otp-input { letter-spacing: .4em; font-size: 1.5rem; text-align: center; font-family: var(--font-mono); }

/* ── Responsive ── */
@media (max-width: 900px) {
  :root { --sidebar-w: 0px; }
  .sidebar { transform: translateX(-100%); transition: transform var(--transition); }
  .sidebar.open { transform: translateX(0); --sidebar-w: 240px; width: 240px; }
  .layout { grid-template-columns: 1fr; }
  .main-content { grid-column: 1; }
  .form-grid, .form-grid-3 { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .page-body { padding: 20px 16px; }
  .top-header { padding: 0 16px; }
}

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