/* Little LIMS: one stylesheet for every screen. No inline styles anywhere,
   so the Content Security Policy can forbid them. */

:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --text: #1d2330;
  --muted: #5d6677;
  --border: #d9dde5;
  --border-strong: #b8bfcc;
  --primary: #0f6e7a;
  --primary-dark: #0a535c;
  --primary-soft: #e3f2f3;
  --danger: #b42318;
  --danger-soft: #fdecea;
  --warning: #9a6700;
  --warning-soft: #fff4d6;
  --success: #1a7f37;
  --success-soft: #e6f4ea;
  --info-soft: #e8f0fe;
  --radius: 8px;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 1px 3px rgba(16, 24, 40, 0.1);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans", "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

:lang(th) { --font: "Noto Sans Thai", "Sarabun", "Leelawadee UI", Tahoma, system-ui, sans-serif; }
:lang(zh-hans) { --font: system-ui, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif; }
:lang(zh-hant) { --font: system-ui, "PingFang TC", "Microsoft JhengHei", "Noto Sans TC", "Source Han Sans TC", sans-serif; }

*, *::before, *::after { box-sizing: border-box; }

html { font-size: 15px; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.5;
}

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

h1, h2, h3 { line-height: 1.25; margin: 0 0 0.75rem; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1.05rem; }
p { margin: 0 0 0.75rem; }

.skip-link { position: absolute; left: -999px; top: 0; background: var(--surface); padding: 0.5rem 1rem; z-index: 10; }
.skip-link:focus { left: 1rem; }

/* Top bar */

.topbar {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0 1.5rem;
  min-height: 56px;
  background: var(--primary-dark);
  color: #fff;
  flex-wrap: wrap;
}
.topbar a { color: #fff; }
.brand { font-weight: 700; font-size: 1.05rem; white-space: nowrap; }
.brand small { font-weight: 400; opacity: 0.75; margin-left: 0.5rem; }
.nav { display: flex; gap: 0.25rem; flex: 1; flex-wrap: wrap; }
.nav a { padding: 0.45rem 0.75rem; border-radius: 6px; opacity: 0.9; }
.nav a:hover, .nav a[aria-current="page"] { background: rgba(255, 255, 255, 0.14); text-decoration: none; opacity: 1; }
.usermenu { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.usermenu form { display: inline-flex; align-items: center; gap: 0.35rem; margin: 0; }
.usermenu select { padding: 0.2rem 0.4rem; border-radius: 6px; border: 0; font-size: 0.85rem; }
.linkbutton {
  background: none; border: 0; padding: 0; color: inherit; font: inherit; cursor: pointer; text-decoration: none;
}
.linkbutton:hover { text-decoration: underline; }

/* Page */

.page { max-width: 1240px; margin: 0 auto; padding: 1.5rem; }
.page-narrow { max-width: 720px; }
.page-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.page-header h1 { margin: 0; }
.page-header .subtitle { color: var(--muted); margin: 0.25rem 0 0; }
.actions { display: flex; gap: 0.5rem; flex-wrap: wrap; align-items: center; }

.footer { text-align: center; color: var(--muted); font-size: 0.85rem; padding: 2rem 1rem; }

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  margin-bottom: 1.25rem;
}
.card > h2:first-child, .card > h3:first-child { margin-top: 0; }
.card-header { display: flex; justify-content: space-between; align-items: center; gap: 1rem; margin-bottom: 0.75rem; }
.card-header h2 { margin: 0; }

.grid { display: grid; gap: 1.25rem; margin-bottom: 1.25rem; }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
/* Four columns when there is room, each at least 180px; a short row keeps the same column widths. */
.grid-4 { grid-template-columns: repeat(auto-fill, minmax(max(180px, calc((100% - 3 * 1.25rem) / 4)), 1fr)); }

.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; }
.stat .value { font-size: 1.8rem; font-weight: 700; display: block; }
.stat .label { color: var(--muted); }

.muted { color: var(--muted); }
.mono { font-family: var(--font-mono); font-size: 0.9em; }
.nowrap { white-space: nowrap; }
.empty { color: var(--muted); text-align: center; padding: 2rem 1rem; }

/* Buttons */

.button, button[type="submit"]:not(.linkbutton) {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--primary);
  background: var(--primary);
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  line-height: 1.3;
}
.button:hover, button[type="submit"]:not(.linkbutton):hover { background: var(--primary-dark); text-decoration: none; }
.button.secondary { background: var(--surface); color: var(--text); border-color: var(--border-strong); }
.button.secondary:hover { background: var(--bg); }
.button.danger, button.danger, button[type="submit"].danger:not(.linkbutton) { background: var(--danger); border-color: var(--danger); }
.button.danger:hover, button[type="submit"].danger:not(.linkbutton):hover { background: #8f1c13; }
.button.small { padding: 0.25rem 0.6rem; font-size: 0.85rem; }

/* Forms */

form.stacked { display: grid; gap: 1rem; }
.field label, .field legend { display: block; font-weight: 600; margin-bottom: 0.3rem; }
.field .required-mark { color: var(--danger); margin-left: 0.15rem; }
.field input[type="text"], .field input[type="email"], .field input[type="password"],
.field input[type="number"], .field input[type="date"], .field input[type="datetime-local"],
.field input[type="search"], .field select, .field textarea {
  width: 100%;
  padding: 0.5rem 0.65rem;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  background: var(--surface);
  font: inherit;
  color: var(--text);
}
.field textarea { min-height: 4rem; }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--primary); outline-offset: 1px; border-color: var(--primary); }
.field .help { color: var(--muted); font-size: 0.85rem; margin-top: 0.25rem; }
.field .errorlist, .errorlist { color: var(--danger); margin: 0.3rem 0 0; padding: 0; list-style: none; font-size: 0.9rem; }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--danger); }
.field fieldset { border: 0; padding: 0; margin: 0; }
.field fieldset div, .checkbox-list div { margin: 0.15rem 0; }
.field input[type="checkbox"] { margin-right: 0.4rem; }
.checkbox-groups { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.form-row { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.form-row + .form-row, .form-row + .field, .field + .form-row, .card > .field + .field { margin-top: 1rem; }
.form-actions { display: flex; gap: 0.75rem; align-items: center; flex-wrap: wrap; padding-top: 0.5rem; }
.form-errors { background: var(--danger-soft); color: var(--danger); border-radius: 6px; padding: 0.75rem 1rem; }

.filters { display: flex; gap: 0.75rem; flex-wrap: wrap; align-items: flex-end; margin-bottom: 1rem; }
.filters .field { min-width: 160px; flex: 1; }
.filters .field.wide { flex: 2; min-width: 240px; }

/* Tables */

.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; background: var(--surface); }
table.data th, table.data td { text-align: left; padding: 0.55rem 0.75rem; border-bottom: 1px solid var(--border); vertical-align: top; }
table.data th { font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.03em; color: var(--muted); background: var(--bg); white-space: nowrap; }
table.data tbody tr:hover { background: #fafbfc; }
table.data td.numeric { text-align: right; }

dl.setup-links { margin: 0; }
dl.setup-links dt { font-weight: 600; margin-top: 0.9rem; }
dl.setup-links dt:first-child { margin-top: 0; }
dl.setup-links dd { margin: 0.15rem 0 0; color: var(--muted); font-size: 0.925rem; }
dl.details { display: grid; grid-template-columns: minmax(140px, max-content) 1fr; gap: 0.4rem 1.25rem; margin: 0; }
dl.details dt { color: var(--muted); }
dl.details dd { margin: 0; overflow-wrap: anywhere; }

/* Badges */

.badge { display: inline-block; padding: 0.1rem 0.55rem; border-radius: 999px; font-size: 0.8rem; font-weight: 600; background: var(--bg); color: var(--muted); border: 1px solid var(--border); white-space: nowrap; }
.badge-registered { background: var(--info-soft); color: #1a4fb4; border-color: #c6d7fb; }
.badge-received { background: var(--success-soft); color: var(--success); border-color: #b7e0c2; }
.badge-rejected { background: var(--danger-soft); color: var(--danger); border-color: #f5c2bd; }
.badge-cancelled { background: #eef0f3; color: var(--muted); }
.badge-urgent { background: var(--warning-soft); color: var(--warning); border-color: #f0d68a; }
.badge-locked, .badge-inactive { background: var(--danger-soft); color: var(--danger); border-color: #f5c2bd; }
.badge-active, .badge-current { background: var(--success-soft); color: var(--success); border-color: #b7e0c2; }
.badge-upcoming { background: var(--info-soft); color: #1a4fb4; border-color: #c6d7fb; }
.badge-ended, .badge-withdrawn { background: #eef0f3; color: var(--muted); }

/* Messages */

.messages { list-style: none; margin: 0 0 1rem; padding: 0; display: grid; gap: 0.5rem; }
.message { padding: 0.75rem 1rem; border-radius: 6px; background: var(--info-soft); border: 1px solid #c6d7fb; }
.message.success { background: var(--success-soft); border-color: #b7e0c2; }
.message.warning { background: var(--warning-soft); border-color: #f0d68a; }
.message.error { background: var(--danger-soft); border-color: #f5c2bd; }

.callout { padding: 1rem 1.25rem; border-radius: var(--radius); background: var(--warning-soft); border: 1px solid #f0d68a; margin-bottom: 1rem; }
.secret { font-family: var(--font-mono); font-size: 1.4rem; letter-spacing: 0.08em; padding: 0.75rem 1rem; background: var(--bg); border: 1px dashed var(--border-strong); border-radius: 6px; display: inline-block; user-select: all; }

/* Pagination */

.pagination { display: flex; gap: 0.5rem; align-items: center; justify-content: flex-end; margin-top: 0.75rem; color: var(--muted); flex-wrap: wrap; }

/* Sign-in page */

.auth-page { min-height: 100vh; display: grid; place-items: center; padding: 1.5rem; }
.auth-card { width: 100%; max-width: 420px; }
.auth-card h1 { font-size: 1.4rem; }
.auth-languages { display: flex; justify-content: center; gap: 0.75rem; margin-top: 1rem; flex-wrap: wrap; }

/* Sample family and audit changes */

.family { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.35rem; }
.family li { display: flex; gap: 0.5rem; align-items: center; flex-wrap: wrap; }
.changes { list-style: none; padding: 0; margin: 0; font-size: 0.9rem; }
.changes li { margin: 0.1rem 0; }
.changes .old { color: var(--danger); text-decoration: line-through; }
.changes .new { color: var(--success); }
.hash { font-family: var(--font-mono); font-size: 0.75rem; color: var(--muted); overflow-wrap: anywhere; }

/* htmx request indicators */

.htmx-indicator { opacity: 0; transition: opacity 150ms ease-in; }
.htmx-request .htmx-indicator, .htmx-request.htmx-indicator { opacity: 1; }
.htmx-request.busy-fade, .htmx-request .busy-fade { opacity: 0.55; transition: opacity 150ms ease-in 150ms; }

@media (max-width: 720px) {
  .page { padding: 1rem; }
  .topbar { padding: 0.5rem 1rem; gap: 0.5rem; }
  dl.details { grid-template-columns: 1fr; }
  dl.details dt { margin-top: 0.4rem; }
  /* Tables marked stack show each row as a block of labelled cells. */
  table.data.stack, table.data.stack tbody, table.data.stack tr, table.data.stack td { display: block; }
  table.data.stack thead { display: none; }
  table.data.stack tr { padding: 0.5rem 0; border-bottom: 1px solid var(--border); }
  table.data.stack td { border: 0; padding: 0.15rem 0; overflow-wrap: anywhere; }
  table.data.stack td:empty { display: none; }
  table.data.stack td[data-label]::before { content: attr(data-label); display: block; color: var(--muted); font-size: 0.8rem; }
}

@media print {
  .skip-link, .topbar, .actions, .filters, .pagination, .footer { display: none; }
  body { background: #fff; }
  .card { box-shadow: none; border: 0; padding: 0; }
}

/* Helpers */

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.inline-form { display: inline; margin: 0; }
.permission-groups > div { display: grid; gap: 1rem; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.permission-groups > div > div { border: 1px solid var(--border); border-radius: 6px; padding: 0.75rem 1rem; }
.permission-groups > div > div > label { font-weight: 700; margin-bottom: 0.35rem; }
.permission-groups label { font-weight: 400; }
.chain-ok { color: var(--success); font-weight: 700; }
.chain-broken { color: var(--danger); font-weight: 700; }
.tag-list { display: flex; flex-wrap: wrap; gap: 0.35rem; margin: 0; padding: 0; list-style: none; }
.card > .tag-list { margin-bottom: 1rem; }
.scan-box { font-family: var(--font-mono); }

/* Sample labels, 50 x 25 mm: shown side by side, printed one per label. */

.sample-labels { display: flex; flex-wrap: wrap; gap: 1rem; }
.sample-label {
  width: 50mm; height: 25mm; padding: 1.5mm 2.5mm; overflow: hidden;
  display: flex; flex-direction: column; background: #fff; color: #000; border: 1px dashed var(--border-strong);
}
/* The bars sit in a box of their own: as a label's first child, an SVG stops Chromium printing it on the label page. */
.sample-label-bars { height: 10mm; flex: none; }
.sample-label-bars svg { display: block; width: 100%; height: 100%; }
.sample-label-id { font-family: var(--font-mono); font-weight: 700; font-size: 9pt; line-height: 1.2; text-align: center; }
.sample-label-line { font-size: 6.5pt; line-height: 1.2; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

@page label { size: 50mm 25mm; margin: 0; }

@media print {
  .no-print, .messages { display: none; }
  .page-labels { padding: 0; margin: 0; max-width: none; }
  .sample-labels { display: block; }
  .sample-label { page: label; break-after: page; border: 0; }
  .sample-label:last-child { break-after: auto; }
}

/* Results */

.badge-pending { background: var(--warning-soft); color: var(--warning); border-color: #f0d68a; }
.badge-submitted { background: var(--info-soft); color: #1a4fb4; border-color: #c6d7fb; }
.badge-verified { background: var(--success-soft); color: var(--success); border-color: #b7e0c2; }
.badge-retracted { background: var(--danger-soft); color: var(--danger); border-color: #f5c2bd; }
.overdue { color: var(--danger); font-weight: 600; }
.retracted { text-decoration: line-through; color: var(--muted); }
.result-entry { display: flex; gap: 0.4rem; align-items: center; }
.result-entry input, .result-entry select, .remarks-entry input {
  width: 100%; min-width: 7rem; padding: 0.4rem 0.55rem; border: 1px solid var(--border-strong);
  border-radius: 6px; background: var(--surface); font: inherit; color: var(--text);
}
.result-entry.has-error input, .result-entry.has-error select { border-color: var(--danger); }
.signature { margin-top: 1.25rem; max-width: 720px; }