/* Montserrat bundled locally so the letterhead looks the same offline */
@font-face{font-family:Montserrat;font-style:normal;font-weight:500;font-display:swap;src:url(fonts/montserrat-latin-500-normal.woff2) format('woff2')}
@font-face{font-family:Montserrat;font-style:normal;font-weight:700;font-display:swap;src:url(fonts/montserrat-latin-700-normal.woff2) format('woff2')}
@font-face{font-family:Montserrat;font-style:normal;font-weight:800;font-display:swap;src:url(fonts/montserrat-latin-800-normal.woff2) format('woff2')}
@font-face{font-family:Montserrat;font-style:italic;font-weight:700;font-display:swap;src:url(fonts/montserrat-latin-700-italic.woff2) format('woff2')}

/* ================= Base / app chrome ================= */
:root{
  --brand:#1f4e79;
  --ui-bg:#eef1f5; --ui-panel:#fff; --ui-line:#dde2ea; --ui-text:#1d2430;--rule:#0A7A42;--accent:#F6C826;--wm-opacity:.12; --ui-muted:#6b7686;
  --font:'Times New Roman', Times, serif; --size:12pt; --lh:1.5; --pgap:10pt; --margin:22mm;
  --align:justify; --sig:45mm; --stamp:34mm;
}
*{box-sizing:border-box}
html,body{margin:0}
body{font:14px/1.45 system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;color:var(--ui-text);background:var(--ui-bg);
  display:flex;min-height:100vh}

.panel{width:340px;flex:none;background:var(--ui-panel);border-right:1px solid var(--ui-line);padding:18px;
  height:100vh;overflow-y:auto;position:sticky;top:0}
.panel-head{display:flex;justify-content:space-between;align-items:baseline;gap:8px;margin-bottom:6px;flex-wrap:wrap}
h1{font-size:18px;margin:0}
h2{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--ui-muted);margin:0 0 10px}
section{padding:14px 0;border-bottom:1px solid var(--ui-line)}
section:last-child{border-bottom:0}
label{display:block;font-size:13px;margin-bottom:10px}
label.check{display:flex;align-items:center;gap:8px;margin-bottom:6px}
input[type=text],input[type=date],input[type=password],input:not([type]),select,textarea{
  width:100%;margin-top:4px;padding:8px 10px;border:1px solid var(--ui-line);border-radius:8px;font:inherit;background:#fff;color:inherit}
textarea{resize:vertical;font-size:13px}
input[type=range]{width:100%;accent-color:var(--brand)}
input[type=color]{display:block;margin-top:4px;width:60px;height:34px;border:1px solid var(--ui-line);border-radius:6px;padding:2px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}
.val{float:right;color:var(--ui-muted);font-variant-numeric:tabular-nums}
.row{display:flex;gap:8px;align-items:center;margin-bottom:8px}
button{font:inherit;padding:8px 14px;border-radius:8px;border:1px solid var(--ui-line);background:#fff;cursor:pointer;color:inherit}
button:hover{border-color:#b9c2cf}
button.primary{background:var(--brand);color:#fff;border-color:var(--brand)}
button.primary:hover{filter:brightness(1.1)}
button.big{width:100%;padding:12px;font-weight:600}
.hint{font-size:12px;color:var(--ui-muted);margin:6px 0 8px}
.link{color:var(--brand);text-decoration:none;font-size:13px}
.link:hover{text-decoration:underline}

/* ================= Workspace ================= */
.workspace{flex:1;min-width:0;display:flex;flex-direction:column;align-items:center;padding:0 24px 60px;overflow-x:auto}
.toolbar{position:sticky;top:0;z-index:5;display:flex;gap:4px;align-items:center;flex-wrap:wrap;
  background:var(--ui-bg);padding:12px 0;width:210mm;max-width:100%}
.toolbar button{padding:6px 10px;min-width:34px}
.toolbar .sep{width:1px;height:22px;background:var(--ui-line);margin:0 4px}
.saved{margin-left:auto;font-size:12px;color:var(--ui-muted)}

/* ================= The A4 page ================= */
.page{width:210mm;min-height:297mm;background:#fff;box-shadow:0 2px 14px rgba(20,30,50,.15);flex:none;
  /* red dashed hint where each A4 page ends (screen only) */
  background-image:repeating-linear-gradient(to bottom,transparent 0,transparent calc(297mm - 1px),rgba(220,60,60,.35) calc(297mm - 1px),rgba(220,60,60,.35) 297mm)}
.sheet{width:100%;border-collapse:collapse}
.sheet>thead>tr>td,.sheet>tfoot>tr>td,.sheet>tbody>tr>td{padding:0}
@media screen{.sheet{min-height:297mm;height:297mm}}
.sheet>tbody>tr>td{vertical-align:top}

/* letterhead header */
.lh-header{padding:4mm 7mm 2.5mm}
.lh-header .lh-img{margin:-4mm -7mm -2.5mm;width:calc(100% + 14mm)}
.lh-img{display:block;width:100%;height:auto}
.lh-top{display:flex;align-items:center;gap:5mm}
.lh-logo{width:44mm;height:44mm;flex:none;object-fit:contain}
.lh-main{flex:1;min-width:0;text-align:center}
.lh-name{font:800 26.5pt/1.02 Montserrat,'Arial Black',Arial,sans-serif;color:var(--brand);letter-spacing:-.01em;text-transform:uppercase}
.lh-tag{font:italic 700 17pt/1.2 Montserrat,Arial,sans-serif;color:var(--brand);margin-top:1mm}
.lh-contacts{display:flex;justify-content:center;align-items:center;margin-top:3.5mm;text-align:left;
  font:500 7.6pt/1.35 Montserrat,Arial,sans-serif;color:#333}
.lh-c{display:flex;align-items:center;gap:1.6mm;padding:0 2.6mm;white-space:nowrap}
.lh-c + .lh-c{border-left:.45mm solid var(--rule)}
.lh-c:first-child{flex-direction:column;align-items:flex-start;gap:1mm;padding-left:0}
.lh-ci{display:flex;align-items:center;gap:1.6mm}
.lh-phone span{color:var(--rule);font-weight:700;font-size:8.2pt}
.lh-c:last-child{padding-right:0}
.ico{width:5mm;height:5mm;flex:none}
.lh-phone .ico{width:6.2mm;height:6.2mm}
.lh-addr .ico{width:5.6mm;height:5.6mm}
/* green + gold double rule, edge to edge */
.lh-bars{height:2.9mm;background:linear-gradient(to bottom,var(--rule) 0,var(--rule) 50%,var(--accent) 50%,var(--accent) 100%)}
thead .lh-bars{margin-bottom:7mm}

/* faded logo watermark */
.watermark{position:absolute;left:50%;top:148.5mm;width:120mm;transform:translate(-50%,-45%);
  opacity:var(--wm-opacity);pointer-events:none;user-select:none;z-index:0}
.sheet{position:relative;z-index:1}

/* footer */
.page{position:relative}
.lh-footer{position:absolute;left:0;right:0;bottom:0;padding:0 0 12mm;z-index:1}
.lh-footer .lh-img{margin-bottom:-12mm}
.foot-space{height:20mm}
.lh-foot-text{text-align:center;font:7.5pt Montserrat,Arial,sans-serif;color:#555;margin:0 var(--margin) 2mm}

/* letter content */
.content{padding:2mm var(--margin) 4mm !important}
.meta{display:flex;justify-content:space-between;font-family:var(--font);font-size:var(--size);margin-bottom:8mm}
.meta:empty,.meta.hidden{display:none}
.letter-body{font-family:var(--font);font-size:var(--size);line-height:var(--lh);text-align:var(--align);
  color:#111;outline:none;min-height:40mm;overflow-wrap:break-word}
.letter-body p{margin:0 0 var(--pgap)}
.letter-body ul,.letter-body ol{margin:0 0 var(--pgap);padding-left:7mm}
.letter-body p:has(+ .tight){margin-bottom:1mm}
.letter-body:empty::before{content:'Paste your text on the left and click “Place on letterhead” — or type directly here.';color:#aaa;font-style:italic}
[contenteditable]:focus{outline:1px dashed rgba(10,122,66,.45);outline-offset:2mm}

/* signature block */
.sign-block{font-family:var(--font);font-size:var(--size);line-height:1.35;padding-top:8mm;display:inline-block;width:100%;vertical-align:top}
.sign-area{position:relative;height:calc(var(--stamp) + 1mm);min-height:20mm;margin:1mm 0}
.drag{position:absolute;left:0;top:0;cursor:grab;user-select:none;touch-action:none}
.drag:active{cursor:grabbing}
.drag.sig{width:var(--sig);z-index:2}
.drag.stamp{width:var(--stamp);z-index:1;opacity:.95}
.drag.hidden{display:none}
.sig-name{letter-spacing:.02em}
.sig-title{color:#333}

/* ================= Settings page ================= */
.settings-page{display:block}
.settings{max-width:820px;margin:0 auto;padding:28px 18px 60px}
.card{background:#fff;border:1px solid var(--ui-line);border-radius:12px;padding:18px;margin:14px 0}
.alert{padding:10px 14px;border-radius:8px;margin:12px 0}
.alert.ok{background:#e6f5ea;color:#1d6b35}
.alert.bad{background:#fdeaea;color:#9b2323}
.img-row{display:flex;gap:16px;align-items:center;padding:10px 0;border-bottom:1px solid var(--ui-line)}
.img-row:last-of-type{border-bottom:0}
.thumb{width:150px;height:70px;flex:none;border:1px dashed var(--ui-line);border-radius:8px;display:flex;align-items:center;justify-content:center;
  background:repeating-conic-gradient(#f4f6f9 0 25%,#fff 0 50%) 0 0/14px 14px}
.thumb img{max-width:100%;max-height:100%}
.thumb span{color:var(--ui-muted);font-size:12px}
.img-fields{flex:1}
code{background:#f1f3f6;padding:1px 5px;border-radius:4px}

/* ================= Small screens ================= */
@media (max-width:900px){
  body{flex-direction:column}
  .panel{width:100%;height:auto;position:static}
  .workspace{padding:0 8px 40px}
}

/* ================= Print ================= */
@page{size:A4;margin:0}
@media print{
  html,body{background:#fff;display:block}
  .no-print{display:none !important}
  .workspace{padding:0;display:block;overflow:visible}
  .page{box-shadow:none;width:210mm;min-height:0;background-image:none;position:static}
  .lh-footer{position:fixed;bottom:0}
  .watermark{position:fixed;top:50%}
  *{-webkit-print-color-adjust:exact;print-color-adjust:exact}
  [contenteditable]:focus{outline:none}
  .letter-body:empty::before{content:none}
}
.settings .big{width:auto;padding:12px 40px}

button.word{margin-top:8px;background:#fff;color:#1f4f9c;border-color:#1f4f9c}
button.word:disabled{opacity:.6;cursor:wait}