:root {
  --bg: #f3f4f6;
  --paper: #ffffff;
  --text: #1f2937;
  --muted: #6b7280;
  --line: #e5e7eb;
  --hover: #d1d5db;
  --accent: #0f9d58;
  --accent-ink: #ffffff;
  --head: #1f2937;
  --head-ink: #ffffff;
  --shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 8px 24px rgba(0, 0, 0, .06);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #111318; --paper: #1b1e25; --text: #e5e7eb; --muted: #9ca3af;
    --line: #2d313a; --hover: #3f4450; --head: #2d313a; --head-ink: #e5e7eb;
    --shadow: 0 1px 3px rgba(0, 0, 0, .4);
  }
}
:root[data-theme="dark"] {
  --bg: #111318; --paper: #1b1e25; --text: #e5e7eb; --muted: #9ca3af;
  --line: #2d313a; --hover: #3f4450; --head: #2d313a; --head-ink: #e5e7eb;
  --shadow: 0 1px 3px rgba(0, 0, 0, .4);
}

* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 14px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
button, input, select, textarea { font: inherit; color: inherit; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 24px; background: var(--paper); border-bottom: 1px solid var(--line);
}
.brand { font-size: 20px; font-weight: 700; color: var(--text); text-decoration: none; }
.brand span { color: var(--accent); }
.topbar nav { display: flex; gap: 8px; }
.link { background: none; border: 0; cursor: pointer; padding: 6px 10px; border-radius: 6px; }
.link:hover { background: var(--line); }
.pill { background: var(--line); border-radius: 999px; padding: 0 7px; font-size: 12px; }

.layout {
  display: grid; grid-template-columns: minmax(0, 1fr) 220px; gap: 24px;
  max-width: 1120px; margin: 24px auto; padding: 0 16px;
}
.paper { background: var(--paper); box-shadow: var(--shadow); border-radius: 6px; padding: 40px; }
.side { display: flex; flex-direction: column; gap: 14px; position: sticky; top: 16px; align-self: start; }
.side label { display: flex; flex-direction: column; gap: 4px; color: var(--muted); font-size: 13px; }
.side select { padding: 8px; border: 1px solid var(--line); border-radius: 6px; background: var(--paper); }
.primary, .secondary { padding: 12px; border-radius: 6px; cursor: pointer; font-weight: 600; }
.primary { background: var(--accent); color: var(--accent-ink); border: 0; }
.primary:hover { filter: brightness(1.08); }
.secondary { background: var(--paper); border: 1px solid var(--line); }
.secondary:hover { border-color: var(--hover); }
.hint { color: var(--muted); font-size: 12px; margin: 0; }

/* Editable fields look like plain text until hovered/focused */
.paper input, .paper textarea {
  width: 100%; border: 1px solid transparent; border-radius: 4px; background: transparent; padding: 6px 8px;
}
.paper textarea { resize: vertical; border-color: var(--line); }
.paper input:hover, .paper textarea:hover { border-color: var(--hover); }
.paper input:focus, .paper textarea:focus { outline: none; border-color: var(--accent); }
.label { color: var(--muted); }

.row { display: flex; gap: 32px; justify-content: space-between; }
.top { align-items: flex-start; margin-bottom: 24px; }
.logo-box {
  position: relative; width: 200px; height: 110px; border: 2px dashed var(--line); border-radius: 6px;
  display: flex; align-items: center; justify-content: center; color: var(--muted); cursor: pointer;
}
.logo-box:hover { border-color: var(--hover); }
.logo-box.has-logo { border-style: solid; border-color: transparent; }
.logo-box img { max-width: 100%; max-height: 100%; object-fit: contain; }
.logo-box .x { position: absolute; top: -10px; right: -10px; }
.title-box { text-align: right; width: 280px; }
.title-box .title { font-size: 32px; text-align: right; letter-spacing: .5px; }
.number { display: flex; align-items: center; gap: 4px; margin-left: auto; width: 160px; color: var(--muted); }
.number input { text-align: right; }

.parties .left { flex: 1; max-width: 420px; display: flex; flex-direction: column; gap: 12px; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.meta { width: 320px; display: flex; flex-direction: column; gap: 4px; }
.meta-row { display: grid; grid-template-columns: 1fr 160px; gap: 6px; }
.meta-row .label { text-align: right; }

.items { margin: 32px 0 24px; }
.items-head, .item-row {
  display: grid; grid-template-columns: minmax(0, 1fr) 90px 130px 110px 28px; gap: 6px; align-items: start;
}
.items-head { background: var(--head); border-radius: 4px; padding: 4px; }
.paper .items-head input { color: var(--head-ink); }
.paper .items-head input:hover { border-color: rgba(255, 255, 255, .3); }
.items-head input:nth-child(n+2), .item-row .amount { text-align: right; }
.item-row { padding: 6px 4px; }
.item-row textarea { min-height: 34px; }
.item-row input[type="number"] { border-color: var(--line); }
.item-row .amount { padding: 7px 8px; }
.money-in { position: relative; }
.money-in .cur { position: absolute; left: 8px; top: 7px; color: var(--muted); pointer-events: none; }
.paper .money-in input { padding-left: 34px; border-color: var(--line); }
.x {
  width: 24px; height: 24px; border-radius: 50%; border: 0; background: transparent; color: var(--muted);
  cursor: pointer; font-size: 16px; line-height: 1; margin-top: 4px;
}
.x:hover { background: var(--line); color: var(--text); }
.add {
  margin-top: 8px; background: none; border: 1px solid var(--accent); color: var(--accent);
  border-radius: 4px; padding: 6px 12px; cursor: pointer;
}
.add:hover { background: var(--accent); color: var(--accent-ink); }

.bottom .left { flex: 1; max-width: 460px; display: flex; flex-direction: column; gap: 4px; }
.totals { width: 340px; display: flex; flex-direction: column; gap: 4px; }
.t-row { display: grid; grid-template-columns: 1fr 160px; gap: 6px; align-items: center; }
.t-row .label { text-align: right; }
.t-row > span { text-align: right; padding: 6px 8px; }
.t-row.strong > span { font-weight: 700; }
.adj { grid-template-columns: 1fr 160px 28px; }
.adj .val { display: flex; gap: 4px; }
.adj .val input { border-color: var(--line); text-align: right; }
.toggle {
  border: 1px solid var(--line); background: var(--paper); border-radius: 4px; cursor: pointer;
  min-width: 34px; color: var(--muted);
}
.toggle:hover { border-color: var(--hover); }
.adjust-links { display: flex; justify-content: flex-end; gap: 12px; padding: 2px 8px; }
.adjust-links button { background: none; border: 0; color: var(--accent); cursor: pointer; padding: 0; }

dialog {
  border: 0; border-radius: 8px; padding: 0; width: min(560px, calc(100vw - 32px));
  background: var(--paper); color: var(--text); box-shadow: var(--shadow);
}
dialog::backdrop { background: rgba(0, 0, 0, .4); }
.dlg-head { display: flex; justify-content: space-between; align-items: center; padding: 14px 18px; border-bottom: 1px solid var(--line); }
.dlg-head h2 { margin: 0; font-size: 18px; }
#historyList { list-style: none; margin: 0; padding: 0; max-height: 60vh; overflow: auto; }
#historyList li { display: flex; align-items: center; gap: 12px; padding: 12px 18px; border-bottom: 1px solid var(--line); }
#historyList li .info { flex: 1; min-width: 0; }
#historyList li .info small { color: var(--muted); display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#historyList li button { border: 1px solid var(--line); background: var(--paper); border-radius: 4px; padding: 4px 10px; cursor: pointer; }
#historyList .empty { color: var(--muted); justify-content: center; }

.hero { max-width: 1120px; margin: 28px auto 0; padding: 0 16px; }
.hero h1 { margin: 0 0 6px; font-size: 28px; line-height: 1.2; }
.hero p { margin: 0; color: var(--muted); font-size: 16px; max-width: 760px; }
.layout { margin-top: 20px; }

.content { max-width: 760px; margin: 48px auto 0; padding: 0 16px; font-size: 16px; line-height: 1.65; }
.content h2 { font-size: 22px; margin: 36px 0 10px; line-height: 1.3; }
.content h3 { font-size: 17px; margin: 22px 0 6px; }
.content p, .content li { color: var(--text); }
.content ul, .content ol { padding-left: 22px; }
.content li { margin: 4px 0; }
.content a { color: var(--accent); }
.content details { border: 1px solid var(--line); border-radius: 6px; padding: 10px 14px; margin: 8px 0; background: var(--paper); }
.content summary { cursor: pointer; font-weight: 600; }
.content details p { margin: 8px 0 2px; }

.more { max-width: 1120px; margin: 48px auto 0; padding: 0 16px; display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 24px; }
.more h2 { font-size: 14px; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin: 0 0 8px; }
.more ul { list-style: none; margin: 0; padding: 0; }
.more li { margin: 6px 0; }
.more a { color: var(--text); text-decoration: none; }
.more a:hover { color: var(--accent); text-decoration: underline; }
.more a[aria-current="page"] { color: var(--accent); font-weight: 600; }

.site-footer { text-align: center; color: var(--muted); font-size: 12px; padding: 24px 16px 40px; }

@media (max-width: 900px) {
  .hero h1 { font-size: 23px; }
  .hero p { font-size: 15px; }
  .layout { grid-template-columns: 1fr; }
  .side { position: static; order: -1; }
  .paper { padding: 20px 16px; }
  .row { flex-direction: column; gap: 16px; }
  .title-box, .meta, .totals, .parties .left, .bottom .left { width: 100%; max-width: none; }
  .logo-box { width: 100%; }
  .items-head { display: none; }
  .item-row {
    grid-template-columns: 1fr 1fr 28px; border: 1px solid var(--line); border-radius: 6px; margin-bottom: 8px;
  }
  .item-row textarea { grid-column: 1 / -1; }
  .item-row .amount { grid-column: 1 / 3; }
  .item-row .x { grid-row: 2; grid-column: 3; }
}
@media (max-width: 480px) {
  .two { grid-template-columns: 1fr; }
  .meta-row, .t-row { grid-template-columns: 1fr 140px; }
  .adj { grid-template-columns: 1fr 140px 28px; }
}