:root{
  --bg:#eef1f5; --surface:#ffffff; --surface-2:#f6f8fb;
  --ink:#18212f; --muted:#5c6879; --faint:#8b96a5;
  --line:#dbe1ea; --line-strong:#c4cdda;
  --accent:#1f4e79; --accent-soft:#e8eff7; --accent-ink:#153a5b;
  --gold:#b08422; --danger:#b0392f;
  --shadow:0 1px 2px rgba(20,40,70,.05), 0 8px 28px rgba(20,40,70,.08);
  --radius:10px;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --serif:Georgia,"Times New Roman",serif;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.5;-webkit-font-smoothing:antialiased}
h2{text-wrap:balance}

.layout{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:clamp(16px,2.5vw,34px);
  padding:clamp(16px,3vw,40px);
  max-width:1500px;margin:0 auto;align-items:start;
}
@media (max-width:940px){ .layout{grid-template-columns:1fr} }

.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}
.panel-pad{padding:clamp(16px,2.2vw,26px)}

fieldset{border:none;margin:0;padding:0}
.section-head{display:flex;align-items:baseline;gap:10px;margin:0 0 12px}
.section-head .num{
  font-family:var(--serif);font-weight:700;color:var(--accent);font-size:15px;
  border:1px solid var(--line-strong);border-radius:6px;padding:1px 8px;background:var(--surface-2);min-width:26px;text-align:center;
}
.section-head h2{font-size:15px;margin:0;letter-spacing:.2px}

.grid2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media (max-width:520px){ .grid2{grid-template-columns:1fr} }
.field{display:flex;flex-direction:column;gap:5px;margin-bottom:14px}
label{font-size:11.5px;text-transform:uppercase;letter-spacing:.09em;color:var(--muted);font-weight:600}
input[type=text], textarea{
  font-family:var(--sans);font-size:14px;color:var(--ink);
  background:var(--surface-2);border:1px solid var(--line-strong);border-radius:8px;
  padding:9px 11px;width:100%;transition:border-color .15s, box-shadow .15s;
}
textarea{resize:vertical;min-height:70px;line-height:1.55}
input:focus, textarea:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft)}
::placeholder{color:var(--faint)}

.divider{height:1px;background:var(--line);margin:22px 0}

/* logo picker */
.logo-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.logo-row input[type=file]{font-size:13px;color:var(--muted);max-width:100%}
.logo-preview{height:46px;width:auto;max-width:150px;object-fit:contain;border:1px solid var(--line-strong);border-radius:6px;background:#fff;padding:3px}

/* multi-paragraph inputs */
.para-row{display:flex;gap:8px;align-items:flex-start;margin-bottom:8px}
.para-row textarea{flex:1}
.btn{
  font-family:var(--sans);font-weight:600;font-size:13.5px;cursor:pointer;
  border-radius:8px;padding:9px 15px;border:1px solid transparent;transition:.15s;
  display:inline-flex;align-items:center;gap:7px;
}
.btn-ghost{background:var(--surface);border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-sm{padding:7px 12px;font-size:12.5px}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-primary:hover{filter:brightness(1.06)}
.btn-lg{padding:12px 20px;font-size:15px}
.icon-btn{
  background:transparent;border:1px solid var(--line-strong);color:var(--muted);border-radius:6px;
  width:34px;height:34px;cursor:pointer;font-size:15px;line-height:1;display:grid;place-items:center;flex:none;transition:.15s;
}
.icon-btn:hover{color:var(--danger);border-color:var(--danger)}

/* sources */
.source-row{border:1px solid var(--line);border-radius:9px;padding:12px;margin-bottom:10px;background:var(--surface-2)}
.source-row .row-top{display:flex;gap:8px;align-items:center}
.row-tag{font-size:10.5px;text-transform:uppercase;letter-spacing:.1em;font-weight:700;color:var(--accent-ink);background:var(--accent-soft);border-radius:5px;padding:2px 8px;flex:none}
.source-row .row-top{align-items:flex-start}
.source-row .row-top .cite-input{flex:1;min-height:44px;line-height:1.5}
.auto-line{margin-top:9px;font-size:12px;color:var(--muted);line-height:1.5}
.auto-line code{background:var(--surface);border:1px solid var(--line);border-radius:4px;padding:1px 6px;font-size:11.5px;color:var(--accent-ink)}

/* preview */
.preview-wrap{position:sticky;top:20px}
.preview-bar{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:12px 14px;border:1px solid var(--line);border-bottom:none;
  border-radius:var(--radius) var(--radius) 0 0;background:var(--surface);
}
.preview-bar .lbl{font-size:11.5px;text-transform:uppercase;letter-spacing:.12em;color:var(--muted);font-weight:600}
.pagecount{font-size:11.5px;font-weight:600;color:var(--accent-ink);background:var(--accent-soft);border:1px solid var(--line);border-radius:20px;padding:2px 10px;margin-right:auto;font-variant-numeric:tabular-nums}

/* paginated preview — real A4 pages at 96dpi (794×1123px), scaled to fit */
.page-scroll{max-height:80vh;overflow:auto;background:var(--bg);border:1px solid var(--line);border-radius:0 0 var(--radius) var(--radius);padding:16px}
#pageScaler{position:relative;margin:0 auto}
#pages{position:absolute;top:0;left:0;transform-origin:top left}
.page-item{margin-bottom:22px}
.page-item:last-child{margin-bottom:0}
.page-cap{font-family:var(--sans);font-size:12px;color:var(--faint);text-align:center;margin-bottom:6px;letter-spacing:.03em;font-variant-numeric:tabular-nums}
.sheet{
  width:794px;height:1123px;box-sizing:border-box;padding:96px;
  background:#fff;color:#111;overflow:hidden;
  box-shadow:0 2px 6px rgba(0,0,0,.12), 0 14px 40px rgba(0,0,0,.16);
}
.paper{font-family:"Times New Roman",Georgia,serif;font-size:16px;line-height:1.15;color:#111}
.paper .pg-header{display:flex;justify-content:space-between;align-items:flex-start;gap:20px;margin:0 0 16px}
.paper .pg-header-info div{margin:0}
.paper .pg-header-img{flex:none}
.paper .pg-header-img img{max-height:64px;max-width:220px;width:auto;object-fit:contain;display:block}
.paper .pg-head{margin:0 0 16px}
.paper .pg-head div{margin:0}
.paper .pg-p{margin:0 0 16px;white-space:pre-wrap}
.paper .pg-wc-title{text-align:center;font-weight:bold;margin:0 0 8px}
.paper .pg-wc{margin:0 0 8px;padding-left:36px;text-indent:-36px}
.paper em{font-style:italic}
.paper .empty{color:#999;font-style:italic}
/* offscreen measurer shares .paper styles at content width (794 - 2*96) */
#measurer{position:absolute;left:-10000px;top:0;width:602px;visibility:hidden}

.foot{color:var(--faint);font-size:12px;text-align:center;padding:8px 20px 40px}
.status{font-size:12.5px;color:var(--muted);min-height:16px}
.status.ok{color:var(--accent)}
.status.err{color:var(--danger)}