:root {
  --navy: #1f3a5f;
  --navy-2: #16304f;
  --accent: #2f6fde;
  --accent-soft: #e8f0fd;
  --bg: #f3f5f8;
  --card: #fff;
  --text: #1c2430;
  --muted: #64707f;
  --line: #dfe4ea;
  --ok: #1f8a4c;
  --ok-soft: #e3f4ea;
  --warn: #a86400;
  --warn-soft: #fff1d6;
  --bad: #c0362c;
  --bad-soft: #fde8e6;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06), 0 1px 3px rgba(16, 24, 40, .08);
}
* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--text); font: 14px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { margin: 0 0 8px; line-height: 1.25; }
h1 { font-size: 22px; }
h2 { font-size: 17px; }
h3 { font-size: 15px; }
p { margin: 0 0 10px; }
small, .muted { color: var(--muted); }
code { background: #eef1f5; padding: 1px 5px; border-radius: 4px; font-size: 12.5px; }

/* Layout */
.layout { display: flex; min-height: 100vh; }
.side { width: 240px; background: var(--navy); color: #cfd9e6; flex-shrink: 0; position: sticky; top: 0; height: 100vh; overflow-y: auto; display: flex; flex-direction: column; }
.brand { display: flex; gap: 10px; align-items: center; padding: 18px 16px; border-bottom: 1px solid rgba(255,255,255,.08); }
.brand .logo { width: 38px; height: 38px; border-radius: 9px; background: #fff; color: var(--navy); display: grid; place-items: center; font-weight: 800; font-size: 14px; }
.brand .logo.img { background: #fff; padding: 2px; overflow: hidden; }
.brand .logo.img img { max-width: 100%; max-height: 100%; width: auto !important; height: auto !important; }
.login-logo img { display: block; }
.logo-box { min-width: 70px; min-height: 60px; border: 1px dashed var(--line); border-radius: 8px; display: grid; place-items: center; padding: 4px; background: #fff; }
.imgstrip { margin-top: 10px; }
.imgthumb { border: 1px solid var(--line); background: #fff; border-radius: 8px; padding: 4px; cursor: pointer; display: inline-flex; flex-direction: column; align-items: center; gap: 4px; }
.imgthumb:hover { border-color: var(--accent); }
.imgthumb.big { width: 130px; }
.imgthumb.big small { font-size: 11px; color: var(--muted); max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.gallery { display: flex; flex-wrap: wrap; gap: 10px; }
.drag-zone { position: relative; }
.drop-line { position: absolute; left: 24px; right: 24px; height: 4px; border-radius: 2px; background: var(--accent); box-shadow: 0 0 0 3px rgba(47,111,222,.2); pointer-events: none; z-index: 5; }
.drop-line.v { right: auto; width: 4px; }
.drop-line.zone { right: auto; background: rgba(47,111,222,.1); border: 2px dashed var(--accent); box-shadow: none; border-radius: 8px; }
.drop-line.zone::after { content: attr(data-label); position: absolute; bottom: 4px; left: 50%; transform: translateX(-50%); background: var(--accent); color: #fff; font: 600 11px/1.6 -apple-system, sans-serif; padding: 0 8px; border-radius: 10px; white-space: nowrap; }
.letter img[data-logo] { cursor: grab; }
.letter img[data-logo]:hover { outline: 2px dashed #9dbbf0; outline-offset: 2px; }
.letter img[data-img] { cursor: grab; }
.letter img[data-img]:hover { outline: 2px dashed #9dbbf0; outline-offset: 2px; }
.letter img.sel { outline: 3px solid var(--accent) !important; outline-offset: 2px; }
.imgtools { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; margin-bottom: 10px; min-height: 44px; }
.imgtools input[type=range] { width: 140px; }
.imgtools .seg { display: inline-flex; gap: 2px; }
.imgtools .btn.on { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.imgthumb[draggable=true] { cursor: grab; }
.img-part { border-top: 1px solid var(--line); margin-top: 16px; padding-top: 14px; }
.img-part > h3 { font-size: 16px; color: var(--navy); }
.img-part h4 { font-size: 13.5px; margin: 12px 0 6px; }
.slot { border: 1px solid var(--line); border-radius: 8px; padding: 10px; background: #fbfcfd; }
.slot-img { height: 86px; display: grid; place-items: center; margin: 6px 0 8px; background: #fff; border: 1px dashed var(--line); border-radius: 6px; }
.slot-img img { max-height: 76px; width: auto !important; height: auto !important; max-width: 100%; }
.imgthumb img { max-width: 110px; height: auto !important; }
.brand b { color: #fff; display: block; font-size: 14px; }
.brand small { color: #9fb2c8; font-size: 11.5px; display: block; line-height: 1.3; }
.side nav { padding: 10px 8px; flex: 1; }
.side nav .sec { font-size: 10.5px; text-transform: uppercase; letter-spacing: .08em; color: #7f95ae; padding: 14px 10px 4px; }
.side nav a { display: flex; align-items: center; gap: 10px; color: #d6e0ec; padding: 8px 10px; border-radius: 7px; margin: 1px 0; }
.side nav a:hover { background: rgba(255,255,255,.07); text-decoration: none; }
.side nav a.on { background: rgba(255,255,255,.14); color: #fff; font-weight: 600; }
.side nav a svg { width: 18px; height: 18px; flex-shrink: 0; opacity: .9; }
.side nav a em { margin-left: auto; font-style: normal; background: #f0b429; color: #1b1b1b; font-size: 11px; font-weight: 700; padding: 0 7px; border-radius: 9px; }
.side .who { padding: 14px 16px; border-top: 1px solid rgba(255,255,255,.08); font-size: 12.5px; }
.side .who b { color: #fff; display: block; }
.mainwrap { flex: 1; min-width: 0; display: flex; flex-direction: column; }
.top { height: 58px; background: var(--card); border-bottom: 1px solid var(--line); display: flex; align-items: center; gap: 12px; padding: 0 22px; position: sticky; top: 0; z-index: 20; }
.top-title { font-weight: 700; font-size: 16px; flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.menu-btn { display: none; }
main { padding: 22px; width: 100%; }

/* Common elements */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; margin-bottom: 16px; }
.card > h2:first-child, .card > h3:first-child { margin-bottom: 12px; }
.grid { display: grid; gap: 16px; }
.g2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.g3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.g4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 18px; align-items: start; }
.sticky { position: sticky; top: 76px; }
/* The preview scrolls on its own so the whole page (header, body and footer) can always be reached. */
.sticky.pv-col { max-height: calc(100vh - 160px); overflow-y: auto; overscroll-behavior: contain; padding-right: 4px; }
.part-tag { display: inline-block; font: 700 10px/1.6 -apple-system, sans-serif; letter-spacing: .08em; padding: 0 7px; border-radius: 9px; margin-left: 6px; vertical-align: 1px; }
.part-tag.header { background: #e3ecfb; color: #2f6fde; }
.part-tag.body { background: #eceff3; color: #44505e; }
.part-tag.footer { background: #e3f4ea; color: #1f8a4c; }
.row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
.row.end { justify-content: flex-end; }
.spacer { flex: 1; }
.page-head { display: flex; gap: 12px; align-items: flex-start; flex-wrap: wrap; margin-bottom: 18px; }
.page-head .grow { flex: 1; min-width: 240px; }
.page-head p { color: var(--muted); margin: 0; }

.btn { display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--line); background: #fff; color: var(--text); padding: 8px 14px; border-radius: 8px; font: inherit; font-weight: 600; cursor: pointer; white-space: nowrap; }
.btn:hover { background: #f6f8fa; text-decoration: none; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.primary:hover { background: #255ec4; }
.btn.ok { background: var(--ok); border-color: var(--ok); color: #fff; }
.btn.danger { color: var(--bad); }
.btn.danger.solid { background: var(--bad); border-color: var(--bad); color: #fff; }
.btn.sm { padding: 4px 10px; font-size: 12.5px; }
.btn.ghost { background: transparent; border-color: transparent; }
.btn:disabled { opacity: .55; cursor: not-allowed; }
.iconbtn { position: relative; background: none; border: 0; cursor: pointer; padding: 6px; border-radius: 8px; color: var(--text); }
.iconbtn:hover { background: #f0f2f5; }
.iconbtn svg { width: 22px; height: 22px; display: block; }
.iconbtn em { position: absolute; top: 0; right: 0; background: var(--bad); color: #fff; font-style: normal; font-size: 10px; font-weight: 700; min-width: 17px; height: 17px; border-radius: 9px; display: grid; place-items: center; padding: 0 4px; }

.badge { display: inline-block; font-size: 11.5px; font-weight: 600; padding: 2px 8px; border-radius: 20px; background: #eef1f5; color: #44505e; white-space: nowrap; }
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.warn { background: var(--warn-soft); color: var(--warn); }
.badge.bad { background: var(--bad-soft); color: var(--bad); }
.badge.info { background: var(--accent-soft); color: var(--accent); }

.callout { border-radius: 8px; padding: 12px 14px; margin-bottom: 14px; background: var(--accent-soft); border: 1px solid #c9dafa; }
.callout.warn { background: var(--warn-soft); border-color: #f2d49b; }
.callout.bad { background: var(--bad-soft); border-color: #f3c0bb; }
.callout.ok { background: var(--ok-soft); border-color: #b9e2c9; }
.callout b { display: block; margin-bottom: 2px; }

/* Forms */
label.f { display: block; margin-bottom: 12px; }
label.f > span { display: block; font-weight: 600; font-size: 13px; margin-bottom: 4px; }
label.f > span i { color: var(--bad); font-style: normal; }
label.f > small { display: block; margin-top: 3px; font-size: 12px; }
input[type=text], input[type=password], input[type=date], input[type=number], input[type=search], select, textarea {
  width: 100%; border: 1px solid #cfd6df; border-radius: 7px; padding: 8px 10px; font: inherit; background: #fff; color: var(--text);
}
textarea { resize: vertical; min-height: 70px; }
textarea.code { font-family: ui-monospace, Menlo, Consolas, monospace; font-size: 13px; min-height: 340px; line-height: 1.55; }
input:focus, select:focus, textarea:focus { outline: 2px solid #b8cff7; border-color: var(--accent); }
.invalid { border-color: var(--bad) !important; background: #fff8f7 !important; }
.check { display: flex; gap: 8px; align-items: flex-start; margin-bottom: 8px; cursor: pointer; }
.check input { margin-top: 3px; }

/* Tables */
.tbl-wrap { overflow-x: auto; }
table.tbl { width: 100%; border-collapse: collapse; }
.tbl th, .tbl td { text-align: left; padding: 9px 10px; border-bottom: 1px solid var(--line); vertical-align: top; }
.tbl th { font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); font-weight: 600; background: #fafbfc; }
.tbl tr:last-child td { border-bottom: 0; }
.tbl tr.click { cursor: pointer; }
.tbl tr.click:hover td { background: #f7f9fc; }
.tbl td.num, .tbl th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* Stats */
.stat { display: block; color: inherit; }
.stat:hover { text-decoration: none; border-color: #b9c9de; }
.stat .n { font-size: 28px; font-weight: 800; line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat .l { color: var(--muted); font-size: 13px; }
.stat.hl { border-left: 4px solid #f0b429; }

/* Template cards */
.tcards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 14px; }
.tcard { display: flex; flex-direction: column; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; color: inherit; box-shadow: var(--shadow); }
.tcard:hover { border-color: var(--accent); text-decoration: none; }
.tcard h3 { margin: 8px 0 4px; }
.tcard p { color: var(--muted); font-size: 13px; flex: 1; }
.tcard .meta { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; font-size: 12px; color: var(--muted); }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.step { background: #f8fafc; border: 1px solid var(--line); border-radius: 8px; padding: 12px; }
.step b { display: flex; align-items: center; gap: 8px; }
.step b span { background: var(--navy); color: #fff; width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; font-size: 12px; }
.step p { color: var(--muted); font-size: 12.5px; margin: 4px 0 0; }

.guide dt { font-weight: 700; font-size: 12px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); margin-top: 12px; }
.guide dd { margin: 2px 0 0; white-space: pre-line; }
.guide ul { margin: 2px 0 0; padding-left: 20px; }

/* Previews show the real A4 page (794 px wide, 2 cm margins, same as print and Word), zoomed to fit (--z, set by fitPapers). */
.paper { background: #e7eaee; border-radius: var(--radius); padding: 18px; overflow: hidden; }
.paper .letter { box-shadow: 0 2px 10px rgba(0,0,0,.12); width: 794px; max-width: none; padding: 76px; min-height: 1123px; zoom: var(--z, 1); }

.timeline { list-style: none; padding: 0; margin: 0; }
.timeline li { padding: 0 0 12px 18px; border-left: 2px solid var(--line); position: relative; }
.timeline li::before { content: ""; position: absolute; left: -6px; top: 4px; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); }
.timeline li small { display: block; }

.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin-bottom: 16px; flex-wrap: wrap; }
.tabs button { background: none; border: 0; border-bottom: 2px solid transparent; padding: 9px 14px; font: inherit; font-weight: 600; color: var(--muted); cursor: pointer; }
.tabs button.on { color: var(--accent); border-bottom-color: var(--accent); }

.empty { text-align: center; color: var(--muted); padding: 40px 16px; }
.loading { color: var(--muted); padding: 40px; text-align: center; }

.rule { border-left: 3px solid var(--navy); }
.rule .body ul, .rule .body ol { padding-left: 20px; margin: 0 0 10px; }

.field-row { border: 1px solid var(--line); border-radius: 8px; padding: 10px; margin-bottom: 10px; background: #fbfcfd; }
.field-row .grid { gap: 8px; }
.field-row label.f { margin-bottom: 6px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { border: 1px solid #c9dafa; background: var(--accent-soft); color: var(--accent); border-radius: 14px; padding: 2px 10px; font-size: 12px; cursor: pointer; font-family: ui-monospace, Menlo, monospace; }
.chip.sys { background: #f1f3f6; border-color: var(--line); color: #4a5563; }

.actionbar { position: sticky; bottom: 0; background: rgba(255,255,255,.96); border-top: 1px solid var(--line); padding: 12px 22px; margin: 0 -22px -22px; display: flex; gap: 10px; flex-wrap: wrap; z-index: 10; }

/* Dropdown & modal */
.dropdown { position: absolute; right: 16px; top: 54px; width: 360px; max-width: calc(100vw - 32px); background: #fff; border: 1px solid var(--line); border-radius: var(--radius); box-shadow: 0 10px 30px rgba(0,0,0,.15); z-index: 50; max-height: 70vh; overflow-y: auto; }
.dropdown .item { display: block; padding: 10px 14px; border-bottom: 1px solid var(--line); color: inherit; }
.dropdown .item:hover { background: #f7f9fc; text-decoration: none; }
.dropdown .item.unread { background: #f3f7ff; }
.dropdown .item small { display: block; }
.modal-bg { position: fixed; inset: 0; background: rgba(15,23,42,.45); z-index: 100; display: grid; place-items: center; padding: 16px; }
.modal { background: #fff; border-radius: 12px; width: 560px; max-width: 100%; max-height: calc(100vh - 32px); overflow-y: auto; padding: 20px; box-shadow: 0 20px 50px rgba(0,0,0,.3); }
.modal.wide { width: 760px; }

#toasts { position: fixed; bottom: 18px; right: 18px; z-index: 200; display: flex; flex-direction: column; gap: 8px; max-width: calc(100vw - 36px); }
.toast { background: #1c2430; color: #fff; padding: 10px 14px; border-radius: 8px; box-shadow: 0 6px 20px rgba(0,0,0,.25); max-width: 420px; }
.toast.bad { background: var(--bad); }
.toast.ok { background: var(--ok); }

/* Login */
.login { min-height: 100vh; display: grid; place-items: center; padding: 16px; background: linear-gradient(135deg, var(--navy) 0%, #2b5288 100%); }
.login .box { background: #fff; border-radius: 14px; padding: 28px; width: 420px; max-width: 100%; box-shadow: 0 20px 50px rgba(0,0,0,.3); }
.login .demo { margin-top: 18px; font-size: 12.5px; border-top: 1px solid var(--line); padding-top: 12px; }
.login .demo button { background: none; border: 0; color: var(--accent); cursor: pointer; padding: 0; font: inherit; }

@media (max-width: 1050px) {
  .split { grid-template-columns: 1fr; }
  .sticky { position: static; }
  .g4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 760px) {
  .side { position: fixed; left: -260px; z-index: 60; transition: left .2s; }
  .side.open { left: 0; box-shadow: 0 0 40px rgba(0,0,0,.4); }
  .menu-btn { display: block; }
  main { padding: 16px; }
  .top { padding: 0 12px; }
  .g2, .g3 { grid-template-columns: 1fr; }
  .actionbar { margin: 0 -16px -16px; padding: 12px 16px; }
  .paper { padding: 8px; }
}
@media print {
  .side, .top, .actionbar, .no-print { display: none !important; }
  main { padding: 0; }
  .paper { background: none; padding: 0; }
  .paper .letter { box-shadow: none; }
}