/* =============================================
   IGS Inventory — style.css
   ============================================= */

:root {
  --color-primary:       #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-secondary:     #6b7280;
  --color-danger:        #dc2626;
  --color-warning:       #f59e0b;
  --color-success:       #16a34a;
  --color-bg:            #f3f4f6;
  --color-surface:       #ffffff;
  --color-border:        #e5e7eb;
  --color-text:          #111827;
  --color-text-muted:    #6b7280;
  --color-low-stock:     #fef3c7;
  --radius:              8px;
  --shadow:              0 1px 4px rgba(0,0,0,0.08);
  --font:                'Segoe UI', system-ui, sans-serif;
}

/* --- Reset --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: var(--font); background: var(--color-bg); color: var(--color-text); font-size: 14px; line-height: 1.5; }
a    { color: inherit; text-decoration: none; }
ul   { list-style: none; }

/* --- Navbar --- */
.navbar {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 20px;
  height: 52px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow);
  flex-wrap: wrap;
}
.navbar-brand          { font-size: 16px; font-weight: 700; color: var(--color-primary); white-space: nowrap; }
.navbar-links          { display: flex; gap: 2px; }
.navbar-links a        { color: var(--color-text-muted); font-weight: 500; padding: 5px 10px; border-radius: 6px; transition: all 0.15s; font-size: 13px; }
.navbar-links a:hover  { color: var(--color-primary); background: #eff6ff; }
.navbar-links a.active { color: var(--color-primary); background: #eff6ff; font-weight: 600; }
.navbar-actions        { margin-left: auto; display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }

/* --- Buttons --- */
.btn {
  padding: 6px 13px;
  border-radius: var(--radius);
  border: none;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
  white-space: nowrap;
}
.btn-primary      { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-hover); }
.btn-secondary    { background: var(--color-bg); color: var(--color-text); border: 1px solid var(--color-border); }
.btn-secondary:hover { background: var(--color-border); }
.btn-danger       { background: var(--color-danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; }
.btn-link         { background: none; border: none; color: var(--color-primary); cursor: pointer; font-weight: 600; text-decoration: underline; padding: 0 4px; font-size: 13px; }

/* --- Banners --- */
.banner         { display: flex; align-items: center; gap: 10px; padding: 8px 20px; font-size: 13px; font-weight: 500; flex-wrap: wrap; }
.banner-warning { background: #fef3c7; border-bottom: 1px solid var(--color-warning); color: #92400e; }

/* --- Sections / Layout --- */
.section       { padding: 16px 20px; max-width: 1280px; margin: 0 auto; }
.page-title    { font-size: 18px; font-weight: 700; margin-bottom: 16px; color: var(--color-text); }
.table-hint    { font-size: 12px; color: var(--color-text-muted); margin-bottom: 8px; font-style: italic; }

/* --- Dashboard Cards --- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 16px 18px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.card-icon       { font-size: 20px; line-height: 1; }
.card-label      { font-size: 11px; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.05em; font-weight: 600; }
.card-sublabel   { font-size: 10px; color: var(--color-text-muted); font-weight: 400; text-transform: none; letter-spacing: 0; }
.card-value      { font-size: 28px; font-weight: 800; color: var(--color-text); }
.card-value--warning { color: var(--color-warning); }
.card-value--danger  { color: var(--color-danger); }

/* --- Dashboard Section (expiring table) --- */
.dashboard-section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 16px 20px;
  box-shadow: var(--shadow);
}
.dashboard-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}
.dashboard-section-header h3 { font-size: 14px; font-weight: 700; }
.badge-count {
  background: var(--color-danger);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  border-radius: 20px;
  padding: 2px 10px;
}

/* --- Toolbar --- */
.toolbar { display: flex; gap: 8px; margin-bottom: 10px; flex-wrap: wrap; align-items: center; }
.input-search, .input-select {
  padding: 6px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 13px;
  background: var(--color-surface);
  color: var(--color-text);
}
.input-search { flex: 1; min-width: 160px; }
.input-select { min-width: 120px; }
.input-search:focus, .input-select:focus { outline: none; border-color: var(--color-primary); }

/* --- Tables --- */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  -webkit-overflow-scrolling: touch;
}
table             { width: 100%; border-collapse: collapse; min-width: 700px; }
thead             { background: var(--color-bg); }
th {
  padding: 8px 12px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
}
th:hover           { color: var(--color-primary); }
td {
  padding: 8px 12px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
  font-size: 13px;
}
tr:last-child td   { border-bottom: none; }

/* Clickable inventory rows */
tr.inventory-row {
  cursor: pointer;
  transition: background 0.12s;
}
tr.inventory-row:hover td { background: #eff6ff; }
tr.inventory-row.low-stock:hover td { background: #fde68a; }
tr.low-stock td    { background: var(--color-low-stock); }
.empty-row         { text-align: center; padding: 28px !important; color: var(--color-text-muted); }

/* Clickable dashboard expiry rows */
tr.dash-expiry-row { transition: filter 0.12s; }
tr.dash-expiry-row:hover td { filter: brightness(0.94); }

/* --- Location Badge --- */
.location-badge {
  display: inline-block;
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
  border-radius: 12px;
  padding: 2px 8px;
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
}

/* --- Action Buttons (table) --- */
.action-btns  { display: flex; gap: 4px; flex-wrap: wrap; }
.btn-batches  { background: #f0fdf4; color: #16a34a; border: 1px solid #bbf7d0; padding: 3px 7px; border-radius: 5px; cursor: pointer; font-size: 11px; font-weight: 600; white-space: nowrap; }
.btn-batches:hover { background: #dcfce7; }
.btn-edit     { background: #eff6ff; color: var(--color-primary); border: 1px solid #bfdbfe; padding: 3px 8px; border-radius: 5px; cursor: pointer; font-size: 11px; font-weight: 600; }
.btn-edit:hover   { background: #dbeafe; }
.btn-delete   { background: #fef2f2; color: var(--color-danger); border: 1px solid #fecaca; padding: 3px 8px; border-radius: 5px; cursor: pointer; font-size: 11px; font-weight: 600; }
.btn-delete:hover { background: #fee2e2; }

/* --- Expiry Badges --- */
.expiry-badge         { display: inline-block; border-radius: 10px; padding: 2px 8px; font-size: 11px; font-weight: 700; white-space: nowrap; }
.expiry-expired       { background: #fee2e2; color: #991b1b; border: 1px solid #fca5a5; }
.expiry-urgent        { background: #fff7ed; color: #c2410c; border: 1px solid #fed7aa; }
.expiry-soon          { background: #fef3c7; color: #92400e; border: 1px solid #fcd34d; }
.expiry-ok            { background: #f0fdf4; color: #166534; border: 1px solid #86efac; }

/* Expiry table row tinting */
.expiry-row-expired td { background: #fff1f2; }
.expiry-row-urgent  td { background: #fff7ed; }
.expiry-row-soon    td { background: #fffbeb; }
.expiry-row-expired:hover td { background: #ffe4e6; }
.expiry-row-urgent:hover  td { background: #fed7aa33; }

/* --- Modal --- */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 200;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 60px 12px 24px;
  overflow-y: auto;
}
.modal {
  background: var(--color-surface);
  border-radius: 12px;
  width: 100%;
  max-width: 620px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.18);
  animation: slideDown 0.18s ease;
  margin-bottom: 24px;
}
.modal--wide    { max-width: 760px; }
.modal--confirm { max-width: 420px; }
@keyframes slideDown { from { transform: translateY(-16px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.modal-header { display: flex; align-items: center; justify-content: space-between; padding: 14px 20px 12px; border-bottom: 1px solid var(--color-border); }
.modal-header h3 { font-size: 15px; font-weight: 700; }
.modal-close  { background: none; border: none; font-size: 20px; cursor: pointer; color: var(--color-text-muted); line-height: 1; }
.modal-close:hover { color: var(--color-danger); }
.modal-form   { padding: 16px 20px; }
.form-row     { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.form-group   { display: flex; flex-direction: column; gap: 4px; }
.form-group label { font-size: 11px; font-weight: 600; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.form-group input,
.form-group select,
.form-group textarea {
  padding: 7px 9px;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  font-size: 13px;
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color 0.15s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { outline: none; border-color: var(--color-primary); background: #fff; }
.location-fieldset {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 12px;
}
.location-fieldset legend { font-size: 12px; font-weight: 700; color: var(--color-primary); padding: 0 5px; }
.location-fieldset .form-row { grid-template-columns: 2fr 1fr 1fr; }
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--color-border);
  margin-top: 4px;
}

/* --- Confirm Modal --- */
.confirm-message {
  font-size: 14px;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: 4px;
}

/* --- Batch Modal Specific --- */
.batch-item-info   { margin-bottom: 14px; }
.batch-item-meta   { display: flex; gap: 16px; flex-wrap: wrap; background: var(--color-bg); border-radius: 6px; padding: 8px 12px; font-size: 13px; }
.batch-add-section { border-top: 1px solid var(--color-border); padding-top: 14px; margin-top: 6px; }
.batch-add-section h4 { font-size: 12px; font-weight: 700; margin-bottom: 10px; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.batch-empty       { color: var(--color-text-muted); font-style: italic; padding: 10px 0; font-size: 13px; }
.batch-list        { margin-bottom: 4px; }
.batch-table       { width: 100%; border-collapse: collapse; font-size: 13px; min-width: unset; }
.batch-table th    { padding: 6px 10px; background: var(--color-bg); border-bottom: 1px solid var(--color-border); font-size: 11px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--color-text-muted); font-weight: 700; }
.batch-table td    { padding: 7px 10px; border-bottom: 1px solid var(--color-border); }
.batch-table tr:last-child td { border-bottom: none; }

/* --- Toast --- */
.toast {
  position: fixed;
  bottom: 20px;
  right: 20px;
  padding: 10px 18px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 600;
  color: #fff;
  z-index: 300;
  box-shadow: 0 4px 14px rgba(0,0,0,0.15);
  animation: fadeIn 0.2s ease;
  max-width: calc(100vw - 40px);
}
.toast.success { background: var(--color-success); }
.toast.error   { background: var(--color-danger);  }
.toast.warning { background: var(--color-warning); color: #1f2937; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* --- Footer --- */
.footer { text-align: center; padding: 16px; color: var(--color-text-muted); font-size: 12px; border-top: 1px solid var(--color-border); margin-top: 32px; }

/* =============================================
   SETTINGS PAGE
   ============================================= */

.settings-title    { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.settings-subtitle { color: var(--color-text-muted); margin-bottom: 20px; font-size: 13px; }

.settings-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  padding: 16px 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.settings-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}
.settings-card-header h2 { font-size: 14px; font-weight: 700; margin: 0; }
.settings-count {
  background: var(--color-primary);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  border-radius: 20px;
  padding: 2px 9px;
  min-width: 22px;
  text-align: center;
}

.settings-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  min-height: 34px;
  margin-bottom: 14px;
  align-items: center;
}
.settings-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
  border-radius: 20px;
  padding: 4px 8px 4px 12px;
  font-size: 12px;
  font-weight: 500;
}
.settings-tag-delete {
  background: none;
  border: none;
  color: #93c5fd;
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  padding: 0;
  transition: color 0.15s;
}
.settings-tag-delete:hover { color: var(--color-danger); }
.settings-empty { color: var(--color-text-muted); font-size: 13px; font-style: italic; }

.settings-add-row {
  display: flex;
  gap: 8px;
  align-items: center;
}
.settings-input {
  flex: 1;
  padding: 7px 11px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 13px;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font);
}
.settings-input:focus { outline: none; border-color: var(--color-primary); background: #fff; }

/* =============================================
   RESPONSIVE
   ============================================= */

/* Tablet — iPad (768px – 1024px) */
@media (max-width: 1024px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .section    { padding: 14px 16px; }
  .navbar     { padding: 0 16px; gap: 12px; }
}

/* Mobile / small tablet (< 768px) */
@media (max-width: 768px) {
  .navbar              { height: auto; padding: 8px 14px; gap: 8px; }
  .navbar-brand        { font-size: 15px; }
  .navbar-actions      { width: 100%; justify-content: flex-end; }
  .section             { padding: 12px 14px; }
  .page-title          { font-size: 16px; margin-bottom: 12px; }
  .cards-grid          { grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .card                { padding: 12px 14px; }
  .card-value          { font-size: 24px; }
  .form-row            { grid-template-columns: 1fr; gap: 10px; }
  .location-fieldset .form-row { grid-template-columns: 1fr; }
  .toolbar             { gap: 6px; }
  .input-search        { min-width: 100%; }
  .input-select        { min-width: calc(50% - 3px); flex: 1; }
  .modal-overlay       { padding: 16px 10px 24px; }
  .modal-form          { padding: 14px 16px; }
  .batch-item-meta     { flex-direction: column; gap: 5px; }
  .settings-add-row    { flex-direction: column; align-items: stretch; }
  .dashboard-section   { padding: 12px 14px; }
}

/* Small phones (< 480px) */
@media (max-width: 480px) {
  .cards-grid      { grid-template-columns: repeat(2, 1fr); }
  .navbar-actions  { gap: 4px; }
  .btn             { padding: 5px 10px; font-size: 12px; }
  .action-btns     { gap: 3px; }
  .btn-edit,
  .btn-delete,
  .btn-batches     { padding: 3px 6px; font-size: 10px; }
  th, td           { padding: 6px 8px; }
}

/* --- Utility --- */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }