:root{
  --paper:#F6F7F4; --ink:#14181D; --ink-2:#4A525C; --ink-3:#727C87;
  --rule:#DCDFD8; --surface:#FFFFFF; --surface-2:#EDEFEA;
  --blue:#1F5FA8;  /* the papers' own instruction: kék színű tollat használjon */
  --red:#B0332B;   /* the marking pen */
  --green:#2D6A4B; --amber:#8A6215;
  --shadow:0 1px 2px rgba(20,24,29,.05), 0 8px 24px rgba(20,24,29,.05);
}
@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]){
  --paper:#0F1317; --ink:#E7EAE5; --ink-2:#A6AFB8; --ink-3:#79838D;
  --rule:#272E35; --surface:#161B21; --surface-2:#1D242B;
  --blue:#7FB0E8; --red:#E88B82; --green:#77C29C; --amber:#D8AC5A;
  --shadow:0 1px 2px rgba(0,0,0,.45), 0 8px 24px rgba(0,0,0,.3);
}}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);
  font-family:"IBM Plex Sans","Helvetica Neue",Arial,sans-serif;font-size:15.5px;line-height:1.6;
  -webkit-font-smoothing:antialiased}
a{color:var(--blue)}
.wrap{max-width:1180px;margin:0 auto;padding-inline:18px;padding-block:22px 70px}
h1,h2,h3{margin:0;text-wrap:balance;font-family:"IBM Plex Serif",Georgia,serif;font-weight:600}
h1{font-size:clamp(23px,3.4vw,32px);letter-spacing:-.015em}
h2{font-size:20px;margin-top:38px}
h3{font-size:17px}
.mono{font-family:"IBM Plex Mono",ui-monospace,monospace;font-variant-numeric:tabular-nums}
.muted{color:var(--ink-3)}
.sub{color:var(--ink-3);font-size:14px;margin-top:5px;max-width:74ch}

nav.top{border-bottom:1px solid var(--rule);background:var(--surface);
  position:sticky;top:env(safe-area-inset-top,0px);z-index:20}
nav.top .in{max-width:1180px;margin:0 auto;padding:11px 18px;display:flex;
  gap:18px;align-items:center;flex-wrap:wrap}
nav.top b{font-family:"IBM Plex Serif",serif;font-size:17px}
nav.top a{text-decoration:none;color:var(--ink-2);font-size:14px;font-weight:600}
nav.top a:hover,nav.top a.on{color:var(--blue)}
nav.top .spacer{margin-left:auto}

.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;margin-top:20px;
  background:var(--rule);border:1px solid var(--rule);border-radius:7px;overflow:hidden}
@media (max-width:700px){.tiles{grid-template-columns:repeat(2,1fr)}}
.tile{background:var(--surface);padding:13px 15px}
.tile b{display:block;font-family:"IBM Plex Mono",monospace;font-size:24px;font-weight:600;
  letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.tile span{font-size:11.5px;color:var(--ink-3)}

.card{background:var(--surface);border:1px solid var(--rule);border-radius:8px;
  box-shadow:var(--shadow);margin-top:18px}
.card>header{padding:12px 16px;border-bottom:1px solid var(--rule);background:var(--surface-2);
  display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.card>header b{font-size:12px;letter-spacing:.09em;text-transform:uppercase}
.card .body{padding:16px}

.tablewrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--rule);vertical-align:top}
tr:last-child td{border-bottom:0}
th{font-size:10.5px;letter-spacing:.09em;text-transform:uppercase;color:var(--ink-3);
  font-weight:600;background:var(--surface-2);position:sticky;top:0}
td.num{font-family:"IBM Plex Mono",monospace;font-variant-numeric:tabular-nums;white-space:nowrap}
tr.link td{color:var(--ink-3)}

.pill{display:inline-block;font-size:10.5px;font-weight:600;letter-spacing:.05em;
  text-transform:uppercase;padding:2px 8px;border-radius:999px;white-space:nowrap;
  border:1px solid transparent}
.pill.ok{color:var(--green);background:color-mix(in srgb,var(--green) 12%,transparent);
  border-color:color-mix(in srgb,var(--green) 32%,transparent)}
.pill.unverified{color:var(--amber);background:color-mix(in srgb,var(--amber) 12%,transparent);
  border-color:color-mix(in srgb,var(--amber) 32%,transparent)}
.pill.review,.pill.blocker,.pill.major{color:var(--red);
  background:color-mix(in srgb,var(--red) 11%,transparent);
  border-color:color-mix(in srgb,var(--red) 30%,transparent)}
.pill.minor,.pill.extracted{color:var(--blue);
  background:color-mix(in srgb,var(--blue) 11%,transparent);
  border-color:color-mix(in srgb,var(--blue) 30%,transparent)}
.pill.open{color:var(--red);background:color-mix(in srgb,var(--red) 11%,transparent)}
.pill.fixed{color:var(--green);background:color-mix(in srgb,var(--green) 12%,transparent)}
.pill.linkonly{color:var(--ink-3);border-color:var(--rule);background:var(--surface-2)}

form.filters{display:flex;flex-wrap:wrap;gap:8px;align-items:end;margin-top:16px}
label.f{display:flex;flex-direction:column;gap:3px;font-size:11px;letter-spacing:.06em;
  text-transform:uppercase;color:var(--ink-3);font-weight:600}
input[type=text],input[type=search],select,textarea{font:inherit;font-size:14px;
  padding:7px 10px;border:1px solid var(--rule);border-radius:6px;
  background:var(--surface);color:var(--ink);min-width:0}
input:focus-visible,select:focus-visible,textarea:focus-visible,button:focus-visible{
  outline:2px solid var(--blue);outline-offset:1px}
button,.btn{font:inherit;font-size:14px;font-weight:600;cursor:pointer;padding:7px 14px;
  border-radius:6px;border:1px solid var(--blue);background:var(--blue);color:#fff;
  text-decoration:none;display:inline-block}
button.ghost,.btn.ghost{background:var(--surface);color:var(--ink-2);border-color:var(--rule)}
button.ghost:hover{border-color:var(--blue);color:var(--blue)}

/* exam content, set to echo the printed paper */
.exam{font-family:"IBM Plex Serif",Georgia,serif;font-size:15px;line-height:1.65}
.exam p{margin:0 0 .85em}
.exam figure{margin:1em 0;text-align:center}
.exam figure img{max-width:100%;height:auto;border-radius:3px}
.exam figure.formula{text-align:left;background:var(--surface-2);border:1px solid var(--rule);
  border-radius:4px;padding:8px 10px}
.exam blockquote.forras{margin:.8em 0;padding:.55em .9em;border-left:2px solid var(--blue);
  background:var(--surface-2);border-radius:0 3px 3px 0;font-size:14px}
.exam table{border-collapse:collapse;width:100%;font-size:13px;margin:1em 0;
  font-family:"IBM Plex Sans",sans-serif;display:block;overflow-x:auto}
.exam th,.exam td{border:1px solid var(--rule);padding:6px 8px}
input.blank{display:inline-block;min-width:150px;width:auto;font-family:"IBM Plex Sans",sans-serif;
  font-size:14px;padding:1px 7px;border:0;border-bottom:1.5px dotted var(--blue);
  border-radius:0;background:color-mix(in srgb,var(--blue) 5%,transparent)}
input.blank:focus{outline:0;border-bottom-style:solid;
  background:color-mix(in srgb,var(--blue) 10%,transparent)}

.qnav{display:flex;flex-wrap:wrap;gap:5px;margin-top:10px}
.qnav a{font-family:"IBM Plex Mono",monospace;font-size:12px;text-decoration:none;
  padding:3px 9px;border:1px solid var(--rule);border-radius:5px;color:var(--ink-2);
  background:var(--surface)}
.qnav a:hover{border-color:var(--blue);color:var(--blue)}
.qnav a.on{background:var(--blue);border-color:var(--blue);color:#fff}

.fb{border-left:3px solid var(--rule);padding:10px 0 10px 14px;margin-top:14px}
.fb.major,.fb.blocker{border-left-color:var(--red)}
.fb.minor{border-left-color:var(--blue)}
.fb .meta{font-size:11.5px;color:var(--ink-3);display:flex;gap:8px;flex-wrap:wrap;
  align-items:center;margin-bottom:5px}
.fb p{margin:0;font-size:14.5px;color:var(--ink-2)}
.notes{background:var(--surface-2);border:1px solid var(--rule);border-radius:7px;
  padding:13px 15px;margin-top:16px;font-size:13.5px;color:var(--ink-2)}
.notes b{display:block;font-size:10.5px;letter-spacing:.09em;text-transform:uppercase;
  color:var(--ink-3);margin-bottom:6px}
details.fbform{margin-top:16px}
details.fbform summary{cursor:pointer;font-weight:600;font-size:14px;color:var(--blue);
  list-style:none}
details.fbform summary::-webkit-details-marker{display:none}
details.fbform summary::before{content:"＋ ";font-weight:400}
details.fbform[open] summary::before{content:"− "}
.fbform .grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
  gap:10px;margin-top:12px}
.fbform textarea{width:100%;min-height:90px;resize:vertical;margin-top:10px}
.flash{background:color-mix(in srgb,var(--green) 12%,transparent);border:1px solid
  color-mix(in srgb,var(--green) 32%,transparent);color:var(--green);padding:9px 13px;
  border-radius:6px;margin-top:14px;font-size:14px;font-weight:600}
.pager{display:flex;gap:8px;align-items:center;margin-top:16px;font-size:14px}

/* question vs source, side by side — the reviewer needs the ground truth */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:16px;
  align-items:start;margin-top:18px}
.split.single{grid-template-columns:minmax(0,1fr)}
@media (max-width:1000px){.split{grid-template-columns:minmax(0,1fr)}}
.split .card{margin-top:0}
.pane-pdf{position:sticky;top:calc(58px + env(safe-area-inset-top,0px));display:flex;
  flex-direction:column;max-height:calc(100vh - 80px)}
.pane-pdf iframe{width:100%;flex:1;min-height:640px;border:0;
  border-radius:0 0 8px 8px;background:var(--surface-2)}
@media (max-width:1000px){.pane-pdf{position:static;max-height:none}
  .pane-pdf iframe{min-height:520px}}
.pagejump{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.pgbtn{padding:4px 10px;font-size:12.5px}
.pgbtn.on{background:var(--blue);border-color:var(--blue);color:#fff}