:root {
  --bg: #f4f7f6;
  --ink: #1b2422;
  --muted: #5c6763;
  --card: #fff;
  --line: #d5ddd9;
  --accent: #1f6b57;
  --err: #8a1f2b;
  --sans: "Segoe UI", system-ui, -apple-system, sans-serif;
  --radius: 12px;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: var(--sans); color: var(--ink); background: var(--bg); line-height: 1.5; font-size: 15px; }
a { color: var(--accent); }
h1 { font-size: 1.22rem; line-height: 1.2; margin: 0 0 4px; color: var(--accent); }
h2 { font-size: 16px; margin: 0 0 8px; font-weight: 650; }
.top { display: flex; align-items: center; gap: 8px; padding: 8px 12px; background: #fff; border-bottom: 1px solid var(--line); }
.logo { color: var(--accent); font-weight: 700; text-decoration: none; }
.top .lang { margin-left: auto; display: flex; align-items: center; gap: 6px; font-size: .85rem; }
select, button, input, textarea { font: inherit; color: var(--ink); min-height: 40px; }
input, select, textarea { width: 100%; border: 1px solid var(--line); border-radius: 8px; padding: 8px 10px; background: #fff; }
.lang select { min-width: 7.5rem; width: auto; }
.suggest { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; padding: 8px 12px; background: #fff8e8; border-bottom: 1px solid #f0e0b0; }
.suggest[hidden], [hidden] { display: none !important; }
.tool, .reading, footer { width: min(1100px, calc(100% - 24px)); margin-left: auto; margin-right: auto; }
.tool { margin-top: 10px; margin-bottom: 10px; }
.lede { margin: 0 0 8px; color: var(--muted); font-size: 14px; }
.steps { display: flex; gap: 6px; margin: 0 0 8px; }
.steps span { flex: 1; text-align: center; padding: 6px 4px; border-radius: 999px; background: #e6eeea; font-size: .78rem; font-weight: 650; }
.steps span.on { background: var(--accent); color: #fff; }
.points { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 8px; padding: 0; list-style: none; }
.points li { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 4px 10px; font-size: .78rem; }
.layout { display: grid; gap: 12px; }
@media (min-width: 900px) {
  .layout { grid-template-columns: 1fr 360px; align-items: start; }
}
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px; }
label { display: block; margin: 0 0 8px; font-size: .9rem; }
.grid2 { display: grid; gap: 8px; }
@media (min-width: 560px) { .grid2 { grid-template-columns: 1fr 1fr; } }
.row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 8px; }
.actions {
  position: sticky; bottom: 0; z-index: 3;
  background: #fff; border-top: 1px solid var(--line);
  padding: 8px 0; margin-top: 10px;
}
button { border: 1px solid var(--line); background: #fff; border-radius: 10px; padding: 8px 12px; cursor: pointer; }
.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.presets { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; }
.presets button { min-height: 36px; font-size: .85rem; }
.line {
  border: 1px solid var(--line); border-radius: 10px; padding: 8px; margin: 0 0 8px; background: #fbfdfc;
}
.line .grid2 { margin-top: 6px; }
.totals { font-variant-numeric: tabular-nums; }
.totals p { display: flex; justify-content: space-between; margin: 4px 0; }
.paper {
  background: #fff; border: 1px solid var(--line); min-height: 420px; padding: 16px; font-size: .82rem;
  aspect-ratio: 1 / 1.35;
}
.paper.letter { aspect-ratio: 8.5 / 11; }
.paper h3 { margin: 0 0 8px; font-size: 1.1rem; }
.paper table { width: 100%; border-collapse: collapse; }
.paper td, .paper th { border-bottom: 1px solid var(--line); padding: 4px 0; text-align: left; }
.long { outline: 1px solid var(--err); }
.alert { background: #fdecee; color: var(--err); padding: 8px 10px; border-radius: 8px; margin: 8px 0; }
.privacy, .note, footer { color: var(--muted); font-size: 13px; }
.reading { margin: 12px auto 20px; }
footer { margin: 0 auto 28px; }
.howto-strip {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  margin: 0 0 14px;
}
@media (min-width: 640px) {
  .howto-strip { grid-template-columns: 1fr 1fr 1fr; }
}
.howto-card {
  display: flex; gap: 10px; align-items: flex-start;
  background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px;
}
.howto-n {
  flex: 0 0 22px; width: 22px; height: 22px; border-radius: 999px;
  background: var(--accent); color: #fff; font-size: 12px; font-weight: 700;
  display: flex; align-items: center; justify-content: center; margin-top: 1px;
}
.howto-card strong { display: block; font-size: 16px; font-weight: 650; }
.howto-card p { margin: 2px 0 0; font-size: 14px; color: var(--muted); line-height: 1.4; }
.acc { margin: 0; }
.acc h2 { margin-bottom: 8px; }
.acc details { background: #fff; border: 1px solid var(--line); border-radius: 8px; margin: 0 0 6px; }
.acc summary {
  cursor: pointer; list-style: none;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  min-height: 40px; padding: 8px 12px; font-size: 16px; font-weight: 600; line-height: 1.3;
}
.acc summary::-webkit-details-marker { display: none; }
.acc summary::after {
  content: ""; flex: 0 0 8px; width: 8px; height: 8px; margin-left: 8px;
  border-right: 2px solid var(--muted); border-bottom: 2px solid var(--muted);
  transform: rotate(-45deg); transition: transform .15s;
}
.acc details[open] summary::after { transform: rotate(45deg); }
.acc-body { padding: 0 12px 12px; font-size: 15px; }
.acc-body p { margin: 0 0 8px; }
.acc-body p:last-child { margin-bottom: 0; }
.cards { display: grid; gap: 10px; margin-top: 14px; }
@media (min-width: 560px) { .cards { grid-template-columns: 1fr 1fr; } }
.cards a { display: block; background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 12px; text-decoration: none; color: inherit; }
.cards h2, .cards h3 { font-size: 16px; }
.answer { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 10px 12px; margin: 12px 0; font-size: 14px; }
.answer h2 { font-size: 16px; margin-bottom: 4px; }
.answer p, .answer ul { margin: 0; }
.answer ul { padding-left: 1.1em; margin-top: 6px; }
.legal { background: #fff8e8; border: 1px solid #f0e0b0; border-radius: 10px; padding: 10px; }
.size-table { width: 100%; border-collapse: collapse; }
.size-table td, .size-table th { border: 1px solid var(--line); padding: 6px 8px; text-align: left; }
.modal { position: fixed; inset: 0; background: rgba(20,28,24,.45); display: flex; align-items: flex-end; justify-content: center; z-index: 40; }
@media (min-width: 700px) { .modal { align-items: center; } }
.modal-card { background: #fff; width: min(560px, 100%); max-height: 88vh; overflow: auto; border-radius: 16px 16px 0 0; padding: 16px; position: relative; }
@media (min-width: 700px) { .modal-card { border-radius: 16px; } }
.x { position: absolute; top: 8px; right: 8px; min-width: 40px; min-height: 40px; }
.preview-wide { display: none; }
@media (min-width: 900px) { .preview-wide { display: block; } .preview-narrow { display: none; } }