:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --border: #dfe3e8;
  --text: #1f2937;
  --muted: #6b7280;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-bg: #eff4ff;
  --danger: #dc2626;
  --warn: #b45309;
  --warn-bg: #fef3c7;
  --danger-bg: #fee2e2;
  --ok-bg: #dcfce7;
  --ok: #15803d;
  --radius: 8px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06);
  --shadow-hover: 0 6px 16px rgba(16, 24, 40, 0.1);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
}

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

input, select, textarea, button { outline-offset: 2px; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

header.topbar {
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  position: sticky;
  top: 0;
  z-index: 10;
}

header.topbar .brand { font-weight: 700; font-size: 16px; flex-shrink: 0; }
header.topbar .global-search { position: relative; flex: 1; max-width: 340px; margin: 0 16px; }
header.topbar .global-search input {
  width: 100%;
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 14px;
  background: var(--bg);
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}
header.topbar .global-search input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-bg);
  background: white;
  outline: none;
}

.search-suggest {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hover);
  max-height: 360px;
  overflow-y: auto;
  z-index: 20;
  padding: 6px 0;
  text-align: left;
}
.search-suggest-section {
  padding: 8px 14px 2px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.search-suggest-item {
  display: block;
  padding: 7px 14px;
  color: var(--text);
  font-size: 14px;
  text-decoration: none;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.search-suggest-item:hover, .search-suggest-item.active {
  background: var(--accent-bg);
  text-decoration: none;
}
.search-suggest-empty { padding: 10px 14px; font-size: 13px; }
header.topbar nav { display: flex; gap: 4px; align-items: center; flex-wrap: wrap; }
header.topbar nav a {
  color: var(--text);
  font-weight: 500;
  font-size: 14px;
  padding: 7px 12px;
  border-radius: 999px;
  transition: background-color 0.15s ease, color 0.15s ease;
}
header.topbar nav a:hover { background: var(--bg); text-decoration: none; }
header.topbar nav a.active { background: var(--accent-bg); color: var(--accent-hover); }
header.topbar nav .muted { margin-left: 8px; }
header.topbar form { margin: 0 0 0 4px; }

main {
  max-width: 1000px;
  margin: 24px auto;
  padding: 0 20px;
}

h1 { font-size: 22px; margin: 0 0 16px; letter-spacing: -0.01em; }
h2 { font-size: 17px; margin: 0 0 12px; letter-spacing: -0.01em; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.stat {
  display: block;
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  color: inherit;
  box-shadow: var(--shadow);
  transition: box-shadow 0.15s ease, transform 0.15s ease, border-color 0.15s ease;
}
a.stat:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); text-decoration: none; border-left-color: var(--accent); }
.stat .num { font-size: 28px; font-weight: 700; }
.stat .label { color: var(--muted); font-size: 13px; margin-top: 2px; }
.stat.accent-danger { border-left-color: var(--danger); }
.stat.accent-danger .num { color: var(--danger); }
.stat.accent-warn { border-left-color: var(--warn); }
.stat.accent-warn .num { color: var(--warn); }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px; border-bottom: 1px solid var(--border); font-size: 14px; white-space: nowrap; }
th { color: var(--muted); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; }
tbody tr { transition: background-color 0.1s ease; }
tr:hover td { background: #fafbfc; }

/* Wrap any table that might not fit a phone/tablet screen in this instead of letting it
   squash its columns unreadably - it scrolls horizontally within its own card. */
.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* Longer free-text columns (notes, reasons, hazard statements) read worse forced onto one
   line than the default nowrap - let those wrap normally within the scrollable table. */
.wrap { white-space: normal; }

.badge { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.badge.warn { background: var(--warn-bg); color: var(--warn); }
.badge.danger { background: var(--danger-bg); color: var(--danger); }
.badge.ok { background: var(--ok-bg); color: var(--ok); }

/* GHS/CLP hazard pictograms - the real official artwork (red-bordered diamond, white
   background, black symbol already baked into the SVG), always paired with its full name
   as a title/tooltip so the icon is never the only thing identifying which hazard it means. */
.ghs-badges { display: inline-flex; gap: 4px; flex-wrap: wrap; vertical-align: middle; }
.ghs-pictogram { width: 22px; height: 22px; flex-shrink: 0; display: block; }
.ghs-badges.large .ghs-pictogram { width: 44px; height: 44px; }
.ghs-badges.labeled { align-items: center; }
.ghs-badges.labeled .ghs-item { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; }
.ghs-picker { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 10px; }
.ghs-picker label {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 400;
  margin: 0;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}
.ghs-picker label:has(input:checked) { border-color: var(--danger); background: var(--danger-bg); }
.ghs-picker label .ghs-pictogram { width: 26px; height: 26px; }
.ghs-picker input[type="checkbox"] { width: auto; margin: 0; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: white;
  border: none;
  padding: 8px 14px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  transition: background-color 0.15s ease, box-shadow 0.15s ease, transform 0.05s ease;
}
.btn:hover { background: var(--accent-hover); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn.secondary { background: white; color: var(--text); border: 1px solid var(--border); }
.btn.secondary:hover { background: #f3f4f6; }
.btn.danger { background: var(--danger); }
.btn.danger:hover { background: #b91c1c; }
.btn.small { padding: 4px 10px; font-size: 13px; }
.btn:disabled { opacity: 0.6; cursor: not-allowed; }

form.inline { display: inline; }

.btn-link {
  background: none;
  border: none;
  padding: 0;
  color: var(--accent);
  cursor: pointer;
  font-size: inherit;
  text-decoration: underline;
}
.btn-link:hover { color: var(--accent-hover); }

.inline-add { background: #f9fafb; margin-top: 8px; }

.form-row { margin-bottom: 14px; }
.form-row label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 4px; color: var(--muted); }
.form-row input, .form-row select, .form-row textarea {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-bg);
  outline: none;
}
.form-actions { display: flex; gap: 10px; margin-top: 18px; }

.toolbar { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.toolbar input[type="search"] {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  min-width: 220px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.toolbar input[type="search"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-bg);
  outline: none;
}

.error { background: var(--danger-bg); color: var(--danger); padding: 10px 14px; border-radius: 6px; margin-bottom: 16px; font-size: 14px; }
.muted { color: var(--muted); }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

.login-wrap { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card { width: 320px; }

/* Barcode label */
.label-card {
  width: 62mm;
  padding: 3mm;
  border: 1px dashed #999;
  text-align: center;
  margin: 0 auto 20px;
}
.label-card .chem-name { font-weight: 700; font-size: 12px; line-height: 1.2; margin-bottom: 2px; }
.label-card .chem-meta { font-size: 9px; color: #444; margin-bottom: 4px; }
.label-codes { display: flex; align-items: center; justify-content: center; gap: 6px; }
.label-codes .qr svg { width: 22mm; height: 22mm; }
.label-codes .code128 svg { height: 18mm; }

@media print {
  header.topbar, .no-print { display: none !important; }
  main { margin: 0; max-width: none; padding: 0; }
  body { background: white; }
  .label-card { border: none; margin: 0; }
}

/* Scanner */
#scanner-region { width: 100%; max-width: 420px; margin: 0 auto; }
#scan-result { margin-top: 16px; }
.qty-btn-row { display: flex; gap: 8px; margin-top: 10px; }
.qty-btn-row input[type="number"] { width: 90px; }

/* Small screens: let the header wrap instead of clipping the nav/search, and give the
   global search its own full-width row rather than squeezing it between brand and nav. */
@media (max-width: 760px) {
  header.topbar { flex-wrap: wrap; height: auto; padding: 10px 16px; row-gap: 8px; }
  header.topbar .global-search { order: 3; max-width: none; width: 100%; margin: 0; flex-basis: 100%; }
  main { padding: 0 16px; }
}