:root {
  /* Modernist source-of-truth tokens (from the Claude Design handoff's styles.css) */
  --color-bg: #ffffff;
  --color-surface: #eae9e9;
  --color-text: #201e1d;
  --color-accent: #ec3013;
  --color-accent-2: #e15b47;
  --color-divider: color-mix(in srgb, #201e1d 40%, transparent);

  --color-neutral-100: #f8f4f4;
  --color-neutral-200: #eae7e7;
  --color-neutral-300: #d7d3d3;
  --color-neutral-400: #bab6b6;
  --color-neutral-500: #9b9797;
  --color-neutral-600: #7d7979;
  --color-neutral-700: #605d5d;
  --color-neutral-800: #444141;
  --color-neutral-900: #2d2b2b;

  --color-accent-100: #fff2ef;
  --color-accent-200: #ffe0d9;
  --color-accent-300: #ffc4b8;
  --color-accent-400: #ff9783;
  --color-accent-500: #ff563c;
  --color-accent-600: #dd2b0f;
  --color-accent-700: #ae1800;
  --color-accent-800: #7c1405;
  --color-accent-900: #4d170e;

  --color-accent-2-100: #fff2ef;
  --color-accent-2-200: #ffe0da;
  --color-accent-2-300: #ffc4b9;
  --color-accent-2-400: #ff9784;
  --color-accent-2-500: #ef6853;
  --color-accent-2-600: #c94b39;
  --color-accent-2-700: #9e3526;
  --color-accent-2-800: #71261b;
  --color-accent-2-900: #471d16;

  --font-heading: "Archivo", "Sarabun", system-ui, sans-serif;
  --font-body: "Sarabun", "Archivo", system-ui, sans-serif;

  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px; --space-6: 24px; --space-8: 32px;
  --radius-sm: 0px; --radius-md: 0px; --radius-lg: 0px;
  --shadow-sm: 0 1px 2px color-mix(in srgb, #2d2b2b 14%, transparent);
  --shadow-md: 0 3px 10px color-mix(in srgb, #2d2b2b 16%, transparent);

  /* Legacy variable names, aliased to the tokens above — every existing inline
     style="...var(--ink-faint)..." etc. across every view keeps working unchanged. */
  --paper: var(--color-bg);
  --paper-raised: var(--color-surface);
  --ink: var(--color-text);
  --ink-soft: color-mix(in srgb, var(--color-text) 78%, transparent);
  --ink-faint: color-mix(in srgb, var(--color-text) 55%, transparent);
  --line: var(--color-divider);
  --line-strong: var(--color-divider);
  --teal: var(--color-accent);
  --teal-soft: var(--color-accent-100);
  --amber: var(--color-accent-700);
  --amber-soft: var(--color-accent-100);
  --green: var(--color-accent-700);
  --green-soft: var(--color-accent-100);
  --red: var(--color-accent-2-700);
  --red-soft: var(--color-accent-2-100);
  --sans: "Sarabun", "Archivo", system-ui, sans-serif;
  --mono: ui-monospace, "Cascadia Code", "Consolas", monospace;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--color-bg); color: var(--color-text); font-family: var(--font-body); line-height: 1.55; }
a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.role-strip {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 24px;
  background: var(--color-neutral-900); color: var(--color-neutral-100);
  font-size: 12px; letter-spacing: 0.02em;
}
.role-strip-brand { display: flex; flex-direction: column; gap: 1px; line-height: 1.3; }
.role-strip-brand span:first-child { font-family: var(--font-heading); font-weight: 800; }
.role-strip-brand span:last-child { opacity: 0.55; font-size: 10.5px; }
.role-strip > span { opacity: 0.75; text-transform: uppercase; letter-spacing: 0.08em; font-size: 11px; }

.topbar {
  background: var(--color-bg);
  border-bottom: 2px solid var(--color-divider);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.topbar nav { display: flex; flex-wrap: nowrap; gap: 9px; align-items: center; font-size: 11.5px; width: 100%; overflow-x: auto; }
.topbar nav a { padding-bottom: 2px; border-bottom: 2px solid transparent; font-weight: 600; white-space: nowrap; }
.topbar nav a:hover, .topbar nav a.active { color: var(--color-accent); border-bottom-color: var(--color-accent); text-decoration: none; }
.topbar .badge.amber { background: var(--color-accent); color: var(--color-bg); font-weight: 700; }
.topbar .user { color: var(--ink-faint); font-size: 12.5px; margin-left: auto; padding-left: var(--space-4); border-left: 1px solid var(--color-divider); white-space: nowrap; flex-shrink: 0; }

.nav-toggle { display: none; }

@media (max-width: 860px) {
  .topbar { flex-wrap: wrap; }
  .nav-toggle {
    display: flex; align-items: center; gap: 8px;
    width: 100%; margin-bottom: 10px;
    background: none; border: 1px solid var(--line); border-radius: 0;
    padding: 8px 12px; font-family: var(--font-heading); font-weight: 700; font-size: 13px;
    color: var(--ink); cursor: pointer;
  }
  .topbar nav { display: none; flex-direction: column; align-items: flex-start; gap: 12px; }
  .topbar nav.open { display: flex; }
  .topbar .user { margin-left: 0; padding-left: 0; border-left: 0; }
}

.back-link { display: inline-block; font-size: 12.5px; margin-bottom: 10px; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 28px 24px 60px; }
.wrap.wide { max-width: 1400px; }

h1 { font-family: var(--font-heading); font-weight: 800; font-size: 24px; margin: 0 0 4px; }
h2 { font-family: var(--font-heading); font-weight: 800; font-size: 17px; margin: 0 0 4px; }
h3 { font-family: var(--font-heading); font-weight: 700; font-size: 13.5px; margin: 0; color: var(--ink); }
.sub { color: var(--ink-faint); font-size: 13.5px; margin: 0 0 20px; }

.card { background: var(--color-surface); border: 0; border-radius: 0; padding: 20px; margin-bottom: 18px; }
.card + .card { margin-top: 0; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.grid-5 { display: grid; grid-template-columns: repeat(5, 1fr); gap: 14px; }

label { display: block; font-size: 12.5px; color: var(--ink-faint); font-family: var(--mono); margin-bottom: 4px; }
.field { margin-bottom: 14px; }
input[type=text], input[type=email], input[type=password], input[type=number], input[type=date], input[type=tel], input[type=url], input[type=datetime-local],
select, textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 9px 11px;
  font-size: 13.5px;
  font-family: var(--font-body);
  background: var(--color-surface);
  color: var(--color-text);
}
textarea { resize: vertical; min-height: 70px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--color-accent); outline-offset: 1px; background: var(--color-bg); }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--color-accent-2); }
.field-error { color: var(--color-accent-2-700); font-size: 12px; margin-top: 4px; }

/* Calendar date/time picker (public/js/calendar-picker.js) */
.cal-picker { position: relative; display: inline-block; }
.cal-picker-display { cursor: pointer; background: var(--color-surface); min-width: 150px; }
.cal-picker-panel {
  position: absolute; top: 100%; left: 0; margin-top: 4px; z-index: 40;
  background: var(--color-surface); border: 1px solid var(--line-strong); box-shadow: var(--shadow-md);
  padding: 10px; width: 230px;
}
.cal-picker-panel[hidden] { display: none; }
.cal-picker-nav { display: flex; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.cal-picker-nav button { background: none; border: 0; cursor: pointer; font-size: 13px; font-family: var(--font-heading); font-weight: 800; color: var(--ink); padding: 2px 6px; }
.cal-picker-nav button:hover { color: var(--color-accent); }
.cal-picker-month-label { font-size: 12.5px; font-weight: 700; font-family: var(--font-heading); }
.cal-picker-grid { display: grid; grid-template-columns: repeat(7, 1fr); gap: 2px; text-align: center; }
.cal-picker-dow { font-size: 10px; color: var(--ink-faint); padding: 3px 0; }
.cal-picker-day { border: 0; background: none; padding: 5px 0; font-size: 12px; cursor: pointer; color: var(--ink); }
.cal-picker-day:hover { background: var(--color-accent-100); }
.cal-picker-day.other-month { color: var(--ink-faint); opacity: 0.5; }
.cal-picker-day.today { font-weight: 800; text-decoration: underline; }
.cal-picker-day.selected { background: var(--color-accent); color: var(--color-bg); }
.cal-picker-time-row { display: flex; align-items: center; gap: 6px; margin: 8px 0; }
.cal-picker-time-row input[type=time] { padding: 5px 6px; font-size: 12px; }
.cal-picker-apply { width: 100%; padding: 6px; font-size: 12px; }

.btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 16px; border-radius: 0; font-size: 13.5px;
  font-family: var(--font-heading); font-weight: 800;
  border: 1px solid var(--line); background: var(--color-surface); color: var(--color-text);
  cursor: pointer;
}
.btn.primary { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-bg); }
.btn.primary:hover { background: var(--color-accent-600); }
.btn.danger { background: transparent; border-color: var(--color-accent-2); color: var(--color-accent-2-700); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.decision-btn { transition: opacity .15s, filter .15s; }
.decision-btn.selected { outline: 2px solid var(--color-text); outline-offset: 2px; }
.decision-btn.dimmed { opacity: 0.4; filter: grayscale(60%); }

table { width: 100%; border-collapse: collapse; font-size: 13.5px; }
thead th { text-align: left; font-family: var(--font-heading); font-weight: 800; font-size: 11px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-faint); padding: 10px 12px; border-bottom: 2px solid var(--line); }
tbody td { padding: 11px 12px; border-bottom: 1px solid var(--line); }
tbody tr:hover { background: color-mix(in srgb, var(--color-text) 4%, transparent); }

.badge { display: inline-block; font-size: 11px; padding: 3px 10px; border-radius: 0; letter-spacing: 0.02em; }
.badge.teal { background: transparent; border: 1px solid var(--color-accent); color: var(--color-accent); }
.badge.amber { background: var(--color-accent-100); color: var(--color-accent-800); }
.badge.red { background: var(--color-accent-2-100); color: var(--color-accent-2-800); }
.badge.green { background: transparent; border: 1px solid var(--color-accent); color: var(--color-accent); }
.badge.grey { background: var(--color-neutral-200); color: var(--color-neutral-800); }

.alert { padding: 12px 16px; border-radius: 0; font-size: 13.5px; margin-bottom: 16px; }
.alert.success { background: var(--color-accent-100); color: var(--color-accent-800); border: 1px solid var(--color-accent); }
.alert.error { background: var(--color-accent-2-100); color: var(--color-accent-2-800); border: 1px solid var(--color-accent-2); }
.alert.info { background: var(--color-neutral-100); color: var(--color-neutral-800); border: 1px solid var(--color-divider); }

.kanban { display: grid; grid-auto-flow: column; grid-auto-columns: 200px; gap: 12px; overflow-x: auto; padding-bottom: 8px; }
.kcol { display: flex; flex-direction: column; gap: 8px; }
.kcol-head { font-family: var(--font-heading); font-weight: 800; font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--ink-faint); display: flex; justify-content: space-between; padding: 0 2px; }
.kcard { background: var(--color-surface); border: 0; border-top: 2px solid var(--color-accent); border-radius: 0; padding: 10px; font-size: 12.5px; }
.kcard .name { font-family: var(--font-heading); font-weight: 800; margin-bottom: 4px; }
.kcard .meta { color: var(--ink-faint); font-size: 11px; display: flex; justify-content: space-between; }

.steps { display: flex; gap: 4px; margin-bottom: 4px; }
.step { flex: 1; height: 5px; border-radius: 0; background: var(--line); }
.step.done { background: var(--color-accent); }

.stars { display: flex; gap: 4px; }
.star-input { display: flex; gap: 4px; }
.star-input label { display: inline-block; width: 24px; height: 24px; border-radius: 0; border: 1px solid var(--line); text-align: center; line-height: 24px; cursor: pointer; font-family: var(--font-body); color: var(--ink-faint); margin: 0; }
.star-input input { display: none; }

.signature-box { border: 1px dashed var(--line); border-radius: 0; padding: 16px; background: var(--color-bg); }
.pdf-frame { width: 100%; height: 640px; border: 1px solid var(--line); border-radius: 0; }

.status-track { display: flex; gap: 4px; margin: 10px 0; }
.status-track .dot { flex: 1; text-align: center; font-size: 11px; padding: 6px 4px; border-radius: 0; background: var(--color-bg); border: 1px solid var(--line); color: var(--ink-faint); }
.status-track .dot.on { background: transparent; border-color: var(--color-accent); color: var(--color-accent); }
.status-track .dot.current { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-bg); font-weight: 700; }
.status-track .dot.rejected { background: var(--color-accent-2); border-color: var(--color-accent-2); color: var(--color-bg); font-weight: 700; }
.status-track .dot.mine { outline: 2px solid var(--color-text); outline-offset: 1px; }

.login-box { max-width: 380px; margin: 80px auto; }
.demo-users { font-size: 12px; color: var(--ink-faint); margin-top: 16px; line-height: 1.7; }
.demo-users .demo-user { color: var(--color-accent); text-decoration: none; font-weight: 600; }
.demo-users .demo-user:hover { text-decoration: underline; }

.sig-tabs { display: flex; gap: 6px; margin-bottom: 10px; }
.sig-tab { background: var(--color-bg); border: 1px solid var(--line); border-radius: 0; padding: 6px 12px; font-size: 12.5px; cursor: pointer; color: var(--ink-faint); }
.sig-tab.active { background: var(--color-accent-100); border-color: var(--color-accent); color: var(--color-accent-800); font-weight: 600; }
#signature-canvas { border: 1px dashed var(--line); border-radius: 0; background: #fff; touch-action: none; width: 100%; max-width: 400px; display: block; }

/* New: 4-column bordered stat strip (Requisition/Offer detail — Task 2 & 4) */
.stat-strip { display: grid; grid-template-columns: repeat(4, 1fr); border-top: 2px solid var(--color-divider); border-bottom: 2px solid var(--color-divider); margin: 20px 0; }
.stat-strip > div { padding: 14px 16px; border-left: 1px solid var(--color-divider); }
.stat-strip > div:first-child { border-left: 0; }
.stat-strip .kicker { font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-accent); }
.stat-strip .value { font-size: 18px; font-weight: 800; font-family: var(--font-heading); margin-top: 6px; }

/* Reports dashboard layout: filter sidebar + content column */
.reports-layout { display: grid; grid-template-columns: 220px 1fr; gap: 20px; align-items: start; }
.reports-sidebar { position: sticky; top: 16px; }
.reports-sidebar .field { margin-bottom: 14px; }
.reports-sidebar .field:last-of-type { margin-bottom: 16px; }
.reports-sidebar select { width: 100%; }
.reports-sidebar button { width: 100%; }
@media (max-width: 860px) {
  .reports-layout { grid-template-columns: 1fr; }
  .reports-sidebar { position: static; }
}

/* Reports dashboard KPI tiles — sized to wrap into 2 rows across the 10 metrics */
.kpi-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px; background: var(--color-divider); border: 1px solid var(--color-divider); margin-bottom: 18px; }
.kpi-tile { background: var(--color-surface); padding: 10px 12px; border-left: 3px solid var(--tile-accent, var(--color-accent)); }
.kpi-tile .kicker { font-size: 9.5px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-faint); line-height: 1.3; }
.kpi-tile .value { font-size: 19px; font-weight: 800; font-family: var(--font-heading); margin-top: 5px; color: var(--ink); line-height: 1; }
.kpi-tile .value small { font-size: 11px; font-weight: 600; color: var(--ink-faint); margin-left: 2px; }
@media (max-width: 700px) {
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Chat (internal requester <-> HR messaging) — the one corner of the UI that's deliberately
   rounded rather than following the rest of the app's square/flat look, by request. */
.chat-shell { display: flex; flex-direction: column; height: 62vh; min-height: 420px; border-radius: 16px; overflow: hidden; }
.chat-messages { flex: 1; overflow-y: auto; padding: 18px; display: flex; flex-direction: column; gap: 10px; }
.chat-bubble { max-width: 68%; padding: 9px 13px; font-size: 13.5px; line-height: 1.45; background: var(--color-bg); border: 1px solid var(--line); align-self: flex-start; border-radius: 14px 14px 14px 4px; }
.chat-bubble.mine { align-self: flex-end; background: var(--color-accent); color: var(--color-bg); border-color: var(--color-accent); border-radius: 14px 14px 4px 14px; }
.chat-bubble .chat-meta { display: block; font-size: 10.5px; color: var(--ink-faint); margin-bottom: 3px; font-family: var(--mono); letter-spacing: 0.02em; }
.chat-bubble.mine .chat-meta { color: color-mix(in srgb, var(--color-bg) 75%, transparent); }
.chat-empty { color: var(--ink-faint); font-size: 13px; margin: auto; }
.chat-form { display: flex; gap: 8px; padding: 14px; border-top: 1px solid var(--line); background: var(--color-bg); }
.chat-form textarea { flex: 1; resize: none; min-height: 40px; max-height: 120px; padding: 9px 12px; font-size: 13.5px; border-radius: 10px; }
.chat-form .btn { border-radius: 10px; }
.chat-inbox-row { display: flex; justify-content: space-between; align-items: center; padding: 12px 14px; border-bottom: 1px solid var(--line); text-decoration: none; color: var(--ink); }
.chat-inbox-row:last-child { border-bottom: 0; }
.chat-inbox-row:hover { background: color-mix(in srgb, var(--color-text) 4%, transparent); }
.chat-inbox-row .name { font-weight: 700; }
.chat-inbox-row .preview { font-size: 12px; color: var(--ink-faint); margin-top: 2px; max-width: 480px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chat-inbox-row .meta { text-align: right; font-size: 11px; color: var(--ink-faint); }
.chat-inbox-row .badge { border-radius: 999px; }

/* Floating chat widget (bottom-right, present on every logged-in page — see layout.php) */
.chat-widget { position: fixed; right: 20px; bottom: 20px; z-index: 1000; }
.chat-widget-toggle {
  width: 56px; height: 56px; border-radius: 50%; border: none; cursor: pointer; position: relative;
  background: var(--color-accent); color: var(--color-bg);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 18px color-mix(in srgb, var(--color-text) 28%, transparent);
}
.chat-widget-toggle:hover { background: var(--color-accent-600); }
.chat-widget-badge {
  position: absolute; top: -3px; right: -3px; min-width: 19px; height: 19px; padding: 0 4px;
  border-radius: 999px; background: var(--color-accent-2-600); color: #fff; border: 2px solid var(--color-bg);
  font-size: 11px; font-weight: 800; display: flex; align-items: center; justify-content: center;
}
.chat-widget-panel {
  /* display:none is the baseline so the [hidden] attribute actually hides this — a bare class
     selector has the same specificity as the browser's [hidden] rule and, being later in the
     cascade, would otherwise win and keep the panel visible even while "closed". */
  display: none;
  position: absolute; right: 0; bottom: 68px; width: 400px; max-width: calc(100vw - 40px);
  height: 300px; max-height: calc(100vh - 160px);
  background: var(--color-bg); border-radius: 18px; overflow: hidden;
  flex-direction: column;
  box-shadow: 0 16px 40px color-mix(in srgb, var(--color-text) 24%, transparent);
}
.chat-widget-panel:not([hidden]) { display: flex; }
.chat-widget-header {
  display: flex; align-items: center; gap: 8px; padding: 13px 14px; flex-shrink: 0;
  background: var(--color-accent); color: var(--color-bg);
  font-family: var(--font-heading); font-weight: 800; font-size: 13.5px;
}
.chat-widget-header #chat-widget-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chat-widget-back, .chat-widget-close { background: none; border: none; color: var(--color-bg); font-size: 17px; line-height: 1; cursor: pointer; padding: 2px 5px; }
.chat-widget-body { flex: 1; min-height: 0; display: flex; flex-direction: column; overflow: hidden; }
.chat-widget-body .chat-messages { padding: 14px; }
.chat-widget-list { flex: 1; overflow-y: auto; }
.chat-widget-row {
  display: block; width: 100%; text-align: left; padding: 12px 14px; border: none; border-bottom: 1px solid var(--line);
  background: var(--color-bg); cursor: pointer; font-family: var(--font-body);
}
.chat-widget-row:hover { background: color-mix(in srgb, var(--color-text) 4%, transparent); }
.chat-widget-row .name { font-weight: 700; font-size: 13px; color: var(--ink); }
.chat-widget-row .preview { display: block; font-size: 12px; color: var(--ink-faint); margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chat-widget-empty { padding: 20px; color: var(--ink-faint); font-size: 13px; text-align: center; }
@media (max-width: 480px) {
  .chat-widget { right: 12px; bottom: 12px; }
  .chat-widget-panel { width: calc(100vw - 24px); right: -8px; }
}