:root {
  --bg: #e7e1d4;
  --panel: #f6f1e7;
  --paper: #fffdf8;
  --ink: #1c1915;
  --muted: #3e3a34;
  --line: #ddd4c6;
  --green: #1e5c45;
  --green-ink: #f3faf6;
  --warn: #7a4e0d;
  --bad: #8d2f2a;
  --ghost: #8a8174;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Segoe UI", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.45;
}

.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 20px 48px;
}

a { color: var(--green); }
a:hover { color: #143d2e; }

.skip {
  position: absolute;
  left: -999px;
  top: 8px;
}

.skip:focus {
  left: 12px;
  z-index: 5;
  background: var(--paper);
  padding: 8px 10px;
}

.top {
  padding: 26px 0 18px;
  border-bottom: 2px solid var(--ink);
  margin-bottom: 18px;
}

.eyebrow {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green);
  font-weight: 700;
}

h1 {
  margin: 0;
  font-family: "Iowan Old Style", Palatino, "Palatino Linotype", Georgia, serif;
  font-weight: 600;
  font-size: 40px;
  letter-spacing: -0.03em;
  line-height: 1;
}

.lede {
  max-width: 68ch;
  margin: 10px 0 0;
  color: var(--muted);
}

.grid {
  display: grid;
  grid-template-columns: minmax(300px, 430px) minmax(0, 1fr);
  gap: 28px;
  align-items: start;
}

form {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 6px 16px 16px;
}

.block {
  margin: 0;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.block h2,
.preflight h2 {
  margin: 0 0 6px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
}

label {
  display: block;
  margin: 10px 0 4px;
  font-size: 12px;
  color: var(--muted);
}

.row2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

input, textarea, select, button {
  font: inherit;
  color: inherit;
}

input, textarea, select {
  width: 100%;
  background: #fff;
  border: 1px solid #cfc6b6;
  padding: 8px 10px;
  border-radius: 0;
}

textarea { resize: vertical; }

input:focus, textarea:focus, select:focus, button:focus-visible, a:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 1px;
  border-color: var(--green);
}

fieldset {
  border: 1px solid var(--line);
  margin: 10px 0 0;
  padding: 8px 10px 10px;
}

legend {
  padding: 0 4px;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.radio {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  margin: 6px 0;
  font-size: 14px;
  color: var(--ink);
}

.radio input {
  width: auto;
  margin-top: 3px;
}

.hint, .disclaimer {
  color: var(--muted);
  font-size: 13px;
  margin: 8px 0 0;
}

.disclaimer {
  background: #f4efe4;
  border-left: 3px solid var(--green);
  padding: 8px 10px;
}

.line {
  display: grid;
  grid-template-columns: 1fr 72px 100px 36px;
  gap: 6px;
  align-items: center;
  margin-bottom: 6px;
}

.line-labels {
  font-size: 12px;
  color: var(--muted);
  margin-top: 8px;
}

button {
  cursor: pointer;
  border-radius: 0;
}

button.primary {
  background: var(--green);
  color: var(--green-ink);
  border: 0;
  padding: 10px 16px;
  font-weight: 650;
}

button.primary:hover { background: #174a38; }

button.ghost {
  background: transparent;
  border: 1px solid #c9c0b0;
  padding: 8px 10px;
}

button.ghost:hover { background: #efe8da; }

button.danger {
  color: var(--bad);
  border-color: #e2c8c4;
}

button.remove {
  width: 36px;
  height: 36px;
  padding: 0;
  border: 1px solid #c9c0b0;
  background: transparent;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.side {
  position: sticky;
  top: 12px;
  max-height: calc(100vh - 24px);
  overflow: auto;
  padding-bottom: 8px;
}

.preflight {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 12px 14px;
  margin-bottom: 12px;
}

.sum { margin: 0; font-weight: 650; }
.sum.ready { color: var(--green); }

.checks {
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
}

.checks li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 8px;
  padding: 3px 0;
  font-size: 13px;
}

.checks .mark { font-size: 12px; font-weight: 700; }
.checks .error .mark { color: var(--bad); }
.checks .warn .mark { color: var(--warn); }
.checks .ok .mark { color: var(--green); }

details summary {
  cursor: pointer;
  font-size: 13px;
  color: var(--green);
  margin-top: 8px;
}

.actions .primary { width: 100%; }
.actions { margin-bottom: 12px; }

#sheet {
  position: relative;
  background: var(--paper);
  color: var(--ink);
  font-family: "Iowan Old Style", Palatino, "Palatino Linotype", Georgia, serif;
  font-size: 13.5px;
  line-height: 1.4;
  padding: 28px 32px 32px;
  min-height: 640px;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04), 0 16px 40px rgba(60, 40, 10, 0.08);
}

.sample-stamp {
  position: absolute;
  top: 42%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-12deg);
  border: 3px solid var(--bad);
  color: var(--bad);
  font-size: 42px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 2px 12px;
  opacity: 0.55;
  pointer-events: none;
}

.inv-head {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 2px solid var(--ink);
  padding-bottom: 14px;
}

.from { display: flex; gap: 12px; align-items: flex-start; }

.mono {
  width: 44px;
  height: 44px;
  flex: none;
  display: grid;
  place-items: center;
  border: 1.5px solid var(--green);
  color: var(--green);
  font-weight: 700;
}

.seller-name {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.kicker {
  font-family: "Segoe UI", system-ui, sans-serif;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.inv-number {
  font-size: 22px;
  text-align: right;
  overflow-wrap: anywhere;
}

.id-block { text-align: right; }

.parties {
  display: grid;
  grid-template-columns: 1.3fr 0.8fr;
  gap: 18px;
  margin: 16px 0 18px;
}

.meta {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 3px 12px;
  margin: 0;
  align-content: start;
}

.meta dt {
  font-family: "Segoe UI", system-ui, sans-serif;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}

.meta dd { margin: 0; text-align: right; }

#sheet table { width: 100%; border-collapse: collapse; }

#sheet th {
  font-family: "Segoe UI", system-ui, sans-serif;
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 700;
  text-align: left;
  border-bottom: 1px solid var(--ink);
  padding: 0 8px 6px 0;
}

#sheet td {
  vertical-align: top;
  border-bottom: 1px solid #e4dccf;
  padding: 7px 8px 7px 0;
  overflow-wrap: anywhere;
}

.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
#sheet th.num, #sheet td.num { text-align: right; padding-right: 0; }

.totals { margin-top: 12px; margin-left: auto; width: min(280px, 100%); }
.total-row {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 3px 0;
}
.total-row.grand {
  border-top: 1.5px solid var(--ink);
  margin-top: 4px;
  padding-top: 6px;
  font-weight: 700;
}

.vat-note, .terms { margin: 14px 0 0; white-space: pre-wrap; }
.pay { margin-top: 18px; }

.ghost { color: var(--ghost); }

.foot {
  margin-top: 28px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
}

.foot p { margin: 0 0 8px; }

.prose { max-width: 68ch; padding-top: 8px; }
.prose h1 { font-size: 34px; margin-bottom: 12px; }
.prose h2 { font-size: 20px; margin: 22px 0 8px; }
.prose p, .prose li { color: var(--ink); }
.prose ul { padding-left: 18px; }
.prose blockquote {
  margin: 0 0 16px;
  padding: 8px 12px;
  border-left: 3px solid var(--ink);
  background: var(--paper);
}
.prose pre {
  overflow-x: auto;
  background: var(--paper);
  border: 1px solid var(--line);
  padding: 10px 12px;
  font-size: 12.5px;
  line-height: 1.4;
  white-space: pre-wrap;
}
.prose dt { font-weight: 600; margin-top: 8px; }
.prose dd { margin: 0 0 4px; }

@media (max-width: 980px) {
  .grid { grid-template-columns: 1fr; }
  .side { position: static; max-height: none; overflow: visible; }
  h1 { font-size: 34px; }
}

@media (max-width: 560px) {
  .row2, .parties, .inv-head { display: block; }
  .inv-number, .meta dd, .id-block { text-align: left; }
  .line { grid-template-columns: 1fr 1fr 36px; }
  .line .line-desc, .line-labels span:first-child { grid-column: 1 / -1; }
  #sheet { padding: 18px 14px; min-height: 0; }
}

@media print {
  body { background: #fff; }
  .wrap { max-width: none; padding: 0; }
  .grid { display: block; }
  .side { position: static; max-height: none; overflow: visible; }
  .no-print, .screen-only { display: none !important; }
  #sheet {
    box-shadow: none;
    min-height: 0;
    padding: 0;
    width: auto;
  }
  .sample-stamp { opacity: 0.85; }
}

@page { size: A4; margin: 14mm; }