@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('fonts/inter-latin-wght-normal.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2190-2199, U+2212, U+2215;
}

:root {
  color-scheme: light;
  --bg: #f7f9f8;
  --surface: #ffffff;
  --ink: #17232b;
  --muted: #55636c;
  --line: #dde4e2;
  --accent: #0b7a6a;
  --accent-ink: #ffffff;
  --accent-soft: #e2f3ef;
  --accent-dark: #075347;
  --holiday: #c2410c;
  --holiday-soft: #fde3d6;
  --weekend: #e9edf0;
  --school: #e0a800;
  --warn: #8a4b00;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(23, 35, 43, .06), 0 4px 16px rgba(23, 35, 43, .05);
  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 1rem/1.55 var(--font);
  overflow-x: hidden;
}
img, svg { max-width: 100%; height: auto; }
a { color: var(--accent-dark); text-underline-offset: 2px; }
a:hover { color: var(--accent); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-radius: 4px; }
h1, h2, h3, h4 { line-height: 1.2; letter-spacing: -0.015em; margin: 0 0 .5em; }
h1 { font-size: clamp(1.7rem, 4.5vw, 2.5rem); font-weight: 800; }
h2 { font-size: clamp(1.3rem, 3vw, 1.6rem); font-weight: 750; margin-top: 1.6em; }
h3 { font-size: 1.12rem; font-weight: 700; margin-top: 1.4em; }
p { margin: 0 0 1em; }
.sr-only {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}
.skip { position: absolute; left: -9999px; top: 0; }
.skip:focus { left: 16px; top: 8px; background: var(--surface); padding: 8px 12px; z-index: 10; }
.muted { color: var(--muted); }

.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 16px; }

/* header / footer */
.site-header { background: var(--surface); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; min-height: 60px; flex-wrap: wrap; padding-top: 6px; padding-bottom: 6px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; color: var(--ink); text-decoration: none; font-size: 1.08rem; }
.brand svg { width: 30px; height: 30px; flex: none; }
.site-nav { display: flex; gap: 4px 16px; flex-wrap: wrap; font-size: .95rem; }
.site-nav a { text-decoration: none; color: var(--muted); padding: 6px 0; }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--accent-dark); }
.site-footer { margin-top: 48px; padding: 32px 0 40px; background: var(--surface); border-top: 1px solid var(--line); font-size: .92rem; color: var(--muted); }
.site-footer .cols { display: grid; gap: 20px; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); }
.site-footer h2 { font-size: .95rem; margin: 0 0 .5em; color: var(--ink); }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin: 0 0 4px; }
.site-footer a { color: var(--muted); }

/* hero */
.hero { padding: 28px 0 8px; }
.hero p.lead { font-size: 1.1rem; color: var(--muted); max-width: 46em; }

/* cards */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; }
.prose { max-width: 48em; }

/* ---------------------------------------------------------------- tool */
.tool { margin-top: 12px; }
.settings { display: grid; gap: 14px 18px; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); align-items: start; }
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; border: 0; padding: 0; margin: 0; }
.field > label, .field > legend { font-weight: 650; font-size: .92rem; padding: 0; }
.settings select, .settings input[type="number"], .settings input[type="date"] {
  font: inherit; color: var(--ink); background: var(--surface);
  border: 1px solid #b9c6c3; border-radius: 10px; padding: 9px 10px; min-height: 44px; width: 100%;
}
.settings select:focus, .settings input:focus { border-color: var(--accent); }
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { position: relative; }
.chip input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.chip span {
  display: inline-flex; align-items: center; justify-content: center; min-width: 44px; min-height: 40px;
  padding: 0 10px; border-radius: 999px; border: 1px solid #b9c6c3; background: var(--surface); font-weight: 600; font-size: .92rem;
}
.chip input:checked + span { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.chip input:focus-visible + span { outline: 3px solid var(--accent); outline-offset: 2px; }
.field.wide { grid-column: 1 / -1; }
.more { grid-column: 1 / -1; border-top: 1px solid var(--line); padding-top: 10px; }
.more summary { cursor: pointer; font-weight: 650; color: var(--accent-dark); min-height: 32px; display: flex; align-items: center; }
.more-grid { display: grid; gap: 12px 18px; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); margin-top: 10px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-size: .95rem; }
.check input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--accent); flex: none; }
.check small { display: block; color: var(--muted); }
.row2 { display: flex; gap: 10px; }
.row2 .field { flex: 1; }
.hint { font-size: .88rem; color: var(--muted); margin: 0; }

.result { margin-top: 18px; display: grid; gap: 18px; min-height: 420px; }
.summary { font-size: 1.25rem; line-height: 1.4; margin: 0; }
.summary strong { color: var(--accent-dark); }
.summary .sub { display: block; font-size: .98rem; color: var(--muted); margin-top: 4px; }
.summary .warn { display: block; font-size: .95rem; color: var(--warn); margin-top: 6px; }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.btn {
  font: inherit; font-weight: 650; font-size: .95rem; display: inline-flex; align-items: center; gap: 8px;
  min-height: 44px; padding: 0 16px; border-radius: 10px; cursor: pointer;
  border: 1px solid var(--accent); background: var(--surface); color: var(--accent-dark);
}
.btn.primary { background: var(--accent); color: var(--accent-ink); }
.btn:hover { background: var(--accent-soft); }
.btn.primary:hover { background: var(--accent-dark); }
.btn svg { width: 18px; height: 18px; }
.btn.small { min-height: 36px; padding: 0 12px; font-size: .88rem; }
#share-url { width: 100%; font: inherit; font-size: .85rem; padding: 8px; border: 1px solid var(--line); border-radius: 8px; }
.status { min-height: 1.4em; margin: 0; font-size: .92rem; color: var(--accent-dark); }

.cols2 { display: grid; gap: 18px; grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); }
.cols2 h3 { margin-top: 0; }
.list { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.list li { border: 1px solid var(--line); border-radius: 10px; padding: 10px 12px; background: var(--surface); }
#ops li { display: grid; grid-template-columns: 1fr auto; gap: 2px 10px; }
#ops .op-head, #ops .op-main, #ops .alt { grid-column: 1; }
#ops .ratio {
  grid-column: 2; grid-row: 1 / span 2; align-self: center; font-weight: 800; color: var(--accent-dark);
  background: var(--accent-soft); border-radius: 8px; padding: 4px 8px; font-size: .95rem;
}
#ops .alt { font-size: .88rem; color: var(--muted); }
#plan li { display: grid; gap: 2px; grid-template-columns: 1fr auto; }
#plan .pl-range { font-weight: 700; }
#plan .pl-len { text-align: right; color: var(--accent-dark); }
#plan .pl-vac, #plan .pl-extra { grid-column: 1 / -1; font-size: .92rem; }

/* legend */
.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; padding: 0; margin: 0 0 12px; list-style: none; font-size: .88rem; }
.legend li { display: inline-flex; align-items: center; gap: 6px; }
.sw { width: 18px; height: 18px; border-radius: 5px; display: inline-block; border: 1px solid rgba(0,0,0,.08); flex: none; }
.sw.we { background: var(--weekend); }
.sw.ho { background: var(--holiday); }
.sw.ex { background: var(--holiday-soft); }
.sw.va { background: var(--accent); }
.sw.bk { background: var(--accent-dark); }
.sw.bl { background: repeating-linear-gradient(45deg, #fff 0 3px, #aab4b8 3px 5px); }
.sw.sc { background: var(--surface); box-shadow: inset 0 -5px 0 var(--school); }
.note { font-size: .9rem; color: var(--warn); background: #fff6e5; border-radius: 8px; padding: 8px 10px; margin: 0 0 12px; }

/* calendar */
.cal { display: grid; gap: 14px; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); }
@media (min-width: 700px) { .cal { grid-template-columns: repeat(3, 1fr); gap: 18px; } }
@media (min-width: 1000px) { .cal { grid-template-columns: repeat(4, 1fr); } }
.month h4 { font-size: .98rem; margin: 0 0 4px; font-weight: 700; }
.month table { width: 100%; border-collapse: separate; border-spacing: 2px; table-layout: fixed; }
.month th { font-size: .7rem; font-weight: 600; color: var(--muted); padding: 2px 0; }
.month td { padding: 0; text-align: center; height: 26px; }
@media (min-width: 700px) { .month td { height: 30px; } }
.month td > button, .month td > span {
  display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; min-height: 24px;
  font: inherit; font-size: .8rem; font-variant-numeric: tabular-nums; color: var(--ink);
  border: 0; border-radius: 6px; background: transparent; padding: 0;
}
.month td > button { cursor: pointer; }
.month td > button:hover { background: var(--accent-soft); }
.month td.we > span { background: var(--weekend); color: #3c4a52; }
.month td.ho > span, .month td.ho > button { background: var(--holiday); color: #fff; font-weight: 700; }
.month td.ex > span, .month td.ex > button { background: var(--holiday-soft); color: #7a2a08; font-weight: 600; }
.month td.va > button { background: var(--accent); color: #fff; font-weight: 700; }
.month td.bk > button, .month td.pf > span { background: var(--accent-dark); color: #fff; font-weight: 700; text-decoration: underline; text-underline-offset: 2px; }
.month td.bl > button { background: repeating-linear-gradient(45deg, #fff 0 4px, #dfe5e7 4px 7px); color: #5b676d; text-decoration: line-through; }
.month td.sc > span, .month td.sc > button { box-shadow: inset 0 -4px 0 var(--school); }

.disclaimer { font-size: .88rem; color: var(--muted); margin-top: 14px; }
noscript p { background: #fff6e5; padding: 10px; border-radius: 8px; }
.tool:not(.ready) .result { visibility: hidden; }

/* tables in content */
.table-wrap { overflow-x: auto; }
table.data { width: 100%; border-collapse: collapse; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; font-size: .97rem; }
table.data th, table.data td { padding: 9px 10px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
table.data thead th { background: var(--accent-soft); font-size: .9rem; }
table.data tr:last-child td { border-bottom: 0; }
table.data td.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.tag { display: inline-block; font-size: .78rem; font-weight: 650; border-radius: 6px; padding: 1px 6px; background: var(--weekend); color: #3c4a52; }
.tag.good { background: var(--accent-soft); color: var(--accent-dark); }

.faq details { border: 1px solid var(--line); border-radius: 10px; background: var(--surface); padding: 0 14px; margin-bottom: 8px; }
.faq summary { cursor: pointer; font-weight: 650; padding: 12px 0; list-style-position: outside; }
.faq details > div { padding-bottom: 12px; }
.linkgrid { display: grid; gap: 10px; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); padding: 0; list-style: none; }
.linkgrid a { display: block; padding: 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); text-decoration: none; font-weight: 650; }
.linkgrid a span { display: block; font-weight: 400; color: var(--muted); font-size: .9rem; }
.sources { font-size: .88rem; color: var(--muted); }

/* ---------------------------------------------------------------- print */
@media print {
  @page { size: A4; margin: 12mm; }
  body { background: #fff; font-size: 10pt; }
  .site-header nav, .site-footer, .settings, .actions, .no-print, #share-url, .status, .skip, .faq, .linkgrid { display: none !important; }
  .site-header { border: 0; }
  .wrap { max-width: none; padding: 0; }
  .card { box-shadow: none; border: 0; padding: 0; }
  .result { min-height: 0; }
  .cal { grid-template-columns: repeat(4, 1fr) !important; gap: 8px; }
  .month { break-inside: avoid; }
  .month td { height: 18px; }
  .month td > button, .month td > span { font-size: 7.5pt; min-height: 16px; }
  .cols2 { grid-template-columns: 1fr 1fr; }
  .list li { padding: 4px 6px; break-inside: avoid; }
  * { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  a { color: inherit; text-decoration: none; }
  .print-only { display: block !important; }
}
.print-only { display: none; }
.tool-h { margin-top: 0; }
@media print {
  body.print-plan main > *:not(#planer) { display: none !important; }
  body.print-plan .disclaimer { display: block; }
  .tool-h { font-size: 14pt; }
}
.nw { white-space: nowrap; }
@media (max-width: 560px) {
  table.data.stack thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  table.data.stack, table.data.stack tbody, table.data.stack tr, table.data.stack td { display: block; width: 100%; }
  table.data.stack tr { border-bottom: 1px solid var(--line); padding: 8px 0; }
  table.data.stack tr:last-child { border-bottom: 0; }
  table.data.stack td { border: 0; padding: 3px 12px; display: grid; grid-template-columns: 7.5em 1fr; gap: 8px; }
  table.data.stack td::before { content: attr(data-label); font-size: .82rem; font-weight: 650; color: var(--muted); }
  table.data.stack td br { display: none; }
  table.data.stack td > * { grid-column: 2; }
  table.data.stack td .muted { display: block; margin-top: -6px; }
}