/* Exam set maker (exam-maker.php). Loaded after pdf-tools.css, code-tools.css and data-tools.css
   (hero, fields, cards, mini buttons); this file adds the amber hero, the paper preview, the
   answer-sheet bubbles and the print layout (#xm-print is the only thing that prints). */
.xm-hero{background:linear-gradient(120deg,#2b1a05 0%,#7a4a10 55%,#b8791a 150%)}
.xm-hero:before{content:"ABC"}
.xm-hero h1 em{color:#ffd98a}
.xm-hero .pdft-hero-summary>span,.xm-hero .pdft-hero-badges .icon{color:#ffd98a}
.xm-hero .pdft-hero-summary i{background:#ffd98a}
.xm-layout{grid-template-columns:minmax(340px,420px) minmax(0,1fr)}
.xm-controls{display:grid;gap:18px}
.xm-source{min-height:240px}
.xm-import{cursor:pointer}
.xt-checks{display:grid;gap:8px}
.xt-checks .dt-checkbox{min-height:40px}
.xt-span{grid-column:1/-1}
.dt-fields textarea{width:100%;border:1px solid var(--line);border-radius:8px;padding:9px 12px;font-size:.88rem;color:var(--ink);background:#fff}
.xm-set-tabs label{min-width:44px;justify-content:center}
.xm-warnings{list-style:none;margin:0 0 12px;padding:0;display:grid;gap:6px;font-size:.78rem}
.xm-warnings:empty{display:none}
.xm-warnings li{border:1px solid #f1d9a0;background:#fff8e6;color:#6b4b08;border-radius:4px;padding:6px 10px}
.xm-paper-shell{background:#e9edf1;border-radius:14px;padding:18px;overflow:auto;max-height:78vh;box-shadow:inset 0 1px 4px rgba(13,31,49,.12)}
.xm-paper{background:#fff;color:#111;max-width:210mm;margin:0 auto;padding:16mm 16mm 18mm;box-shadow:0 1px 2px rgba(7,20,42,.07),0 8px 28px rgba(0,0,0,.14);font-family:"Sarabun","TH Sarabun New","Noto Sans Thai",Tahoma,sans-serif;font-size:14px;line-height:1.5;min-height:200px}
.xm-paper:empty:before{content:attr(data-empty);display:block;text-align:center;color:#8a97a5;padding:60px 0}
.xm-head{text-align:center;border-bottom:1.5px solid #111;padding-bottom:8px;margin-bottom:10px}
.xm-head .xm-org{font-weight:700;font-size:1.05em}
.xm-head .xm-course{font-size:1em;margin-top:2px}
.xm-head .xm-meta{font-size:.92em;color:#333;margin-top:2px}
.xm-setbadge{float:right;border:2px solid #111;border-radius:4px;padding:4px 12px;font-weight:800;font-size:1.25em;line-height:1.1;text-align:center;margin:0 0 6px 10px}
.xm-setbadge small{display:block;font-size:.55em;font-weight:600;letter-spacing:.06em}
.xm-student{display:grid;grid-template-columns:1.6fr 1fr .7fr;gap:10px 18px;margin:8px 0 10px;font-size:.95em}
.xm-student span{display:flex;gap:6px;align-items:baseline;white-space:nowrap}
.xm-student span i{flex:1;border-bottom:1px dotted #333;min-width:60px}
.xm-notes{white-space:pre-wrap;font-size:.92em;border:1px solid #444;border-radius:4px;padding:6px 10px;margin:0 0 12px}
.xm-section{font-weight:700;margin:14px 0 6px;padding-bottom:2px;border-bottom:1px solid #999;break-after:avoid}
.xm-questions{margin:0;padding:0;list-style:none}
.xm-questions.cols-2{column-count:2;column-gap:10mm}
.xm-q{display:grid;grid-template-columns:auto 1fr;gap:0 6px;margin:0 0 9px;break-inside:avoid;page-break-inside:avoid}
.xm-q>b{font-weight:700}
.xm-q .xm-stem{white-space:pre-wrap}
.xm-q .xm-stem-lines{grid-column:2}
.xm-choices{grid-column:2;margin:2px 0 0;padding:0;list-style:none}
.xm-choices li{display:grid;grid-template-columns:auto 1fr;gap:6px;white-space:pre-wrap}
.xm-choices.inline{display:flex;flex-wrap:wrap;gap:2px 18px}
.xm-choices.inline li{display:inline-grid}
.xm-end{text-align:center;font-weight:700;margin-top:14px;letter-spacing:.2em}
/* answer sheet */
.xm-sheet-grid{display:grid;grid-template-columns:repeat(var(--sheet-cols,4),1fr);gap:0 14px;margin-top:8px}
.xm-sheet-col{display:grid;gap:3px}
.xm-sheet-row{display:grid;grid-template-columns:28px 1fr;align-items:center;font-size:.85em}
.xm-sheet-row>b{text-align:right;padding-right:4px;font-weight:600}
.xm-sheet-row>span{display:flex;gap:4px}
.xm-bubble{width:17px;height:17px;border:1.3px solid #111;border-radius:50%;display:inline-grid;place-items:center;font-size:9px;line-height:1;color:#333}
.xm-sheet-head{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:start;margin-bottom:8px}
.xm-setboxes{display:flex;gap:6px;align-items:center;font-size:.9em}
.xm-setboxes i{width:20px;height:20px;border:1.3px solid #111;border-radius:2px;display:inline-grid;place-items:center;font-style:normal;font-size:11px}
.xm-setboxes i.on{background:#111;color:#fff}
/* key */
.xm-key{overflow:auto;border:1px solid #e1e8ee;border-radius:8px}
.xm-key table{width:100%;border-collapse:collapse;font-size:.8rem}
.xm-key th,.xm-key td{padding:6px 8px;border-bottom:1px solid #edf1f4;text-align:center;white-space:nowrap}
.xm-key th{background:#0b3155;color:#fff;font-size:.72rem;position:sticky;top:0}
.xm-key td.xm-ans{font-weight:800;color:#7a4a10}
.xm-key td.xm-none{color:#b03a2e}
.xm-key-page table{width:100%;border-collapse:collapse;font-size:.9em}
.xm-key-page th,.xm-key-page td{border:1px solid #333;padding:3px 6px;text-align:center}
.xm-key-page th{background:#eee}
@media(max-width:1000px){.xm-layout{grid-template-columns:1fr}.xm-controls{grid-template-columns:1fr}.xm-paper{padding:10mm}}
@media(max-width:680px){.xm-paper{font-size:13px;padding:8mm}.xm-student{grid-template-columns:1fr}.xm-sheet-grid{--sheet-cols:2!important}}

/* ---- print: only #xm-print ---- */
.xm-print{display:none}
@media print{
  @page{size:A4;margin:14mm 14mm 16mm}
  body.xm-printing>*:not(#xm-print){display:none!important}
  body.xm-printing #xm-print{display:block;position:static;width:auto;background:#fff;color:#000}
  body.xm-printing #xm-print .xm-paper{box-shadow:none;max-width:none;margin:0;padding:0;font-size:13.5pt;min-height:0}
  body.xm-printing #xm-print .xm-page{page-break-after:always;break-after:page}
  body.xm-printing #xm-print .xm-page:last-child{page-break-after:auto;break-after:auto}
  body.xm-printing #xm-print .xm-bubble{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  body.xm-printing #xm-print .xm-setboxes i.on{-webkit-print-color-adjust:exact;print-color-adjust:exact}
}

/* ---- dark mode ---- */
[data-theme="dark"] .dt-fields textarea{background:var(--dm-surface);border-color:var(--dm-border);color:var(--dm-text)}
[data-theme="dark"] .xm-paper-shell{background:var(--dm-bg)}
[data-theme="dark"] .xm-paper{background:#fff;color:#111}
[data-theme="dark"] .xm-warnings li{background:rgba(184,121,26,.15);border-color:rgba(255,217,138,.35);color:#ffd98a}
[data-theme="dark"] .xm-key{border-color:var(--dm-border)}
[data-theme="dark"] .xm-key td{border-color:var(--dm-border);color:var(--dm-text)}
[data-theme="dark"] .xm-key td.xm-ans{color:#ffd98a}