/* Harnscombe Ringing Centre — six numbered columns on a red-brown ground. */
/* Flat and sharp signs: DM Mono and Fraunces have no glyph, so take them from a system symbol font */
@font-face { font-family: "Acc"; src: local("Segoe UI Symbol"), local("Apple Symbols"), local("DejaVu Sans"), local("Noto Sans Symbols 2"); unicode-range: U+266D-266F; }
:root {
  --ground: #6E1B22;
  --field: #5E161C;
  --cream: #F2E9D8;
  --sub: #D9C9B0;
  --blue: #9FC9E8;
  --warn: #FFC857;
  --rule: rgb(242 233 216 / 0.24);
  --tint: rgb(242 233 216 / 0.1);
  --serif: 'Acc', 'Fraunces', Georgia, 'Times New Roman', serif;
  --mono: 'Acc', 'DM Mono', ui-monospace, 'Cascadia Mono', Consolas, monospace;
  --fp: clamp(16px, 3vw, 40px);
  --cp: 16px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  color-scheme: dark;
}
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--ground); color: var(--cream); font: 400 17px/1.55 var(--serif); font-optical-sizing: auto; }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--blue); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }
.vh { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.skip { position: absolute; left: 16px; top: -60px; z-index: 30; background: var(--cream); color: var(--ground); padding: 10px 16px; font-family: var(--mono); }
.skip:focus { top: 12px; }
h1, h2, h3 { margin: 0; font-family: var(--serif); text-wrap: balance; }
p { margin: 0; }
b { font-weight: 600; }

/* ---------- frame + rules ---------- */
.frame { position: relative; max-width: 1440px; margin: 0 auto; padding: 0 var(--fp) 0; }
.rules { position: absolute; top: 0; bottom: 0; left: var(--fp); right: var(--fp); display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); pointer-events: none; }
.rules i { border-left: 1px solid var(--rule); }
.rules i:last-child { border-right: 1px solid var(--rule); }
.g { position: relative; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); }
.g > * { padding-inline: var(--cp); min-width: 0; }
.ph, .band, .today, .filters, .controls, .pager, .entries, .entries ol { display: grid; grid-template-columns: subgrid; padding-inline: 0; }
.ph > *, .band > *, .today > *, .filters > *, .controls > *, .pager > *, .foot > * { padding-inline: var(--cp); min-width: 0; }
.s1 { grid-column: 1 / 2; } .s2 { grid-column: 2 / 3; } .s3 { grid-column: 3 / 4; } .s4 { grid-column: 4 / 5; } .s5 { grid-column: 5 / 6; } .s6 { grid-column: 6 / 7; }
.s12 { grid-column: 1 / 3; } .s13 { grid-column: 1 / 4; } .s16 { grid-column: 1 / -1; } .s24 { grid-column: 2 / 5; } .s25 { grid-column: 2 / 6; }
.s26 { grid-column: 2 / 7; } .s34 { grid-column: 3 / 5; } .s45 { grid-column: 4 / 6; } .s46 { grid-column: 4 / 7; } .s56 { grid-column: 5 / 7; }

/* ---------- top + column numbers ---------- */
.top { align-items: center; padding-top: 18px; padding-bottom: 14px; }
.brand { grid-column: 1 / 4; color: var(--cream); text-decoration: none; font: 600 20px/1.2 var(--serif); }
.now { grid-column: 4 / 6; font: 400 14px/1.4 var(--mono); color: var(--sub); }
.menu-btn { grid-column: 6 / 7; justify-self: end; margin-right: var(--cp); }
.menu-btn, .btn { font: 500 14px/1 var(--mono); color: var(--cream); background: transparent; border: 1px solid var(--cream); padding: 0 16px; min-height: 44px; cursor: pointer; display: inline-flex; align-items: center; justify-content: center; gap: 8px; text-decoration: none; }
.menu-btn:hover, .btn:hover { background: var(--tint); }
.btn-solid { background: var(--cream); color: var(--ground); }
.btn-solid:hover { background: #FFF8EA; }
.btn-sm { min-height: 36px; padding: 0 12px; font-size: 13px; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }

.cols { position: relative; display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); }
.col { display: flex; flex-direction: column; gap: 6px; padding: 14px var(--cp) 16px; color: var(--cream); text-decoration: none; }
.col-n { font: 800 56px/0.9 var(--serif); font-variation-settings: 'opsz' 144; }
.col-l { font: 400 13px/1.2 var(--mono); }
.col:hover { background: var(--tint); }
.col.is-cur { background: var(--cream); color: var(--ground); }

/* ---------- page head + bands ---------- */
main { padding-bottom: 72px; }
.ph { padding-top: 56px; padding-bottom: 40px; align-items: end; row-gap: 20px; }
.ph h1 { font-weight: 800; font-size: clamp(44px, 5.6vw, 84px); line-height: 0.95; letter-spacing: -0.02em; font-variation-settings: 'opsz' 144; }
.lede { font-size: 20px; line-height: 1.45; max-width: 36ch; }
.band { border-top: 1px solid var(--rule); padding-top: 28px; padding-bottom: 36px; row-gap: 20px; align-items: start; }
.band-h { font: 600 22px/1.2 var(--serif); }
.band-b > * + * { margin-top: 16px; }
.h3 { font: 600 22px/1.2 var(--serif); margin-bottom: 12px; }
.small { font-size: 15px; color: var(--sub); max-width: 62ch; }
.small a { color: var(--blue); }
.sub { display: block; font: 400 13px/1.4 var(--mono); color: var(--sub); margin-top: 2px; }
.num { font-family: var(--mono); }
.tag { font: 400 12px/1 var(--mono); color: var(--sub); white-space: nowrap; }
.lines { list-style: none; margin: 0; padding: 0; }
.lines li { border-top: 1px solid var(--rule); padding: 10px 0; max-width: 70ch; }
.lines li:first-child { border-top: none; padding-top: 0; }
.links .sub { display: inline; margin-left: 10px; }

/* ---------- home ---------- */
.today { border-top: 1px solid var(--rule); padding-top: 28px; padding-bottom: 28px; row-gap: 14px; align-items: center; }
.today .band-h { grid-row: 1 / 3; align-self: start; }
.today-big { font: 600 clamp(26px, 2.8vw, 38px)/1.15 var(--serif); }
.today-sub { font-size: 19px; }
.today-act { justify-self: start; }
.entries { border-top: 1px solid var(--rule); }
.entries ol { grid-column: 1 / -1; list-style: none; margin: 0; padding: 0; }
.entry a { display: flex; flex-direction: column; gap: 6px; height: 100%; padding: 22px var(--cp) 26px; color: var(--cream); text-decoration: none; }
.entry a:hover { background: var(--tint); }
.entry a:hover .entry-l { text-decoration: underline; text-underline-offset: 4px; }
.entry-n { font: 800 72px/0.9 var(--serif); font-variation-settings: 'opsz' 144; }
.entry-l { font: 600 22px/1.2 var(--serif); margin-top: 10px; }
.entry-note { font-size: 15px; color: var(--sub); }
.entry-fig { font: 400 14px/1.4 var(--mono); margin-top: auto; padding-top: 14px; }

/* ---------- tables ---------- */
.tbl-box { position: relative; overflow-x: auto; }
.tbl-box.s16 { padding-inline: 0; }
.tbl { width: 100%; border-collapse: collapse; font: 400 15px/1.4 var(--mono); }
.tbl th, .tbl td { text-align: left; vertical-align: top; padding: 10px var(--cp); border-top: 1px solid var(--rule); }
.tbl thead th { font-size: 13px; font-weight: 400; color: var(--sub); border-top: 0; padding-top: 0; }
.tbl tbody th { font: 600 17px/1.3 var(--serif); }
.band-b .tbl th:first-child, .band-b .tbl td:first-child { padding-left: 0; }
.tbl-6 { table-layout: fixed; }
.tbl-6 col { width: 16.6667%; }
.tbl tr.is-now { background: var(--tint); }
.tbl tr[hidden] { display: none; }

/* ---------- key–value ---------- */
.kv { margin: 0; }
.kv > div { display: grid; grid-template-columns: minmax(120px, 34%) 1fr; gap: 16px; border-top: 1px solid var(--rule); padding: 10px 0; }
.kv > div:first-child { border-top: none; padding-top: 0; }
.kv dt { font: 400 14px/1.5 var(--mono); color: var(--sub); }
.kv dd { margin: 0; }
.kv-wide > div { grid-template-columns: minmax(140px, 22%) 1fr; }
.kv output, .kv #m-pn, .kv #m-len { font-family: var(--mono); }

/* ---------- forms ---------- */
.filters, .controls { border-top: 1px solid var(--rule); padding-top: 20px; padding-bottom: 20px; row-gap: 16px; }
.fld { display: flex; flex-direction: column; gap: 6px; border: 0; margin: 0; padding-top: 0; padding-bottom: 0; min-width: 0; }
fieldset.fld { padding-inline: var(--cp); }
.calc .fld, .calc fieldset.fld { padding-inline: 0; }
.fld label, .fld legend, .lbl { font: 400 14px/1.4 var(--mono); color: var(--sub); padding: 0; }
.fld legend { margin-bottom: 6px; }
input[type=text], input[type=email], input[type=search], input[type=number], input[type=date], select {
  width: 100%; min-height: 44px; font: 400 16px/1.2 var(--mono); color: var(--cream); background: var(--field); border: 1px solid var(--sub); border-radius: 0; padding: 8px 12px;
}
input::placeholder { color: var(--sub); }
input[aria-invalid=true] { border-color: var(--warn); border-width: 2px; }
.chk { flex-direction: row; align-items: flex-start; gap: 10px; }
.chk input, .radio input { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--cream); flex: none; }
.chk label { color: var(--cream); font-family: var(--serif); font-size: 16px; }
.radio { display: flex; gap: 10px; align-items: flex-start; padding: 6px 0; }
.radio label { color: var(--cream); font: 400 17px/1.35 var(--serif); }
.pills { display: flex; flex-wrap: wrap; gap: 6px; }
.pill { font: 500 14px/1 var(--mono); color: var(--cream); background: transparent; border: 1px solid var(--cream); min-height: 40px; min-width: 40px; padding: 0 12px; cursor: pointer; }
.pill:hover { background: var(--tint); }
.pill[aria-pressed=true] { background: var(--cream); color: var(--ground); }
.stepper { display: flex; gap: 6px; }
.stepper .btn { flex: 1; padding: 0 8px; }
.hint { font: 400 13px/1.4 var(--mono); color: var(--sub); }
.err { font: 500 14px/1.45 var(--mono); color: var(--warn); }
.err.s16 { padding-top: 4px; padding-bottom: 12px; }
.count { font: 400 14px/1.4 var(--mono); color: var(--sub); padding-top: 4px; padding-bottom: 12px; }
.empty { padding-top: 28px; padding-bottom: 28px; display: flex; gap: 16px; align-items: center; flex-wrap: wrap; border-top: 1px solid var(--rule); }
.calc { display: flex; flex-direction: column; gap: 20px; padding-top: 8px; padding-bottom: 40px; align-self: start; }
.calc > .btn { align-self: flex-start; }
.session { font: 400 15px/1.45 var(--mono); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); padding: 12px 0; }
.full-msg { font: 600 18px/1.3 var(--serif); }

/* ---------- results ---------- */
.result { align-self: start; padding-top: 8px; padding-bottom: 40px; }
.big { font: 800 clamp(40px, 4.6vw, 68px)/1 var(--serif); font-variation-settings: 'opsz' 144; letter-spacing: -0.01em; margin-bottom: 24px; }
.note { margin-top: 18px; font-size: 16px; }
.meter { position: relative; height: 12px; border: 1px solid var(--cream); margin-top: 24px; }
.meter-fill { position: absolute; left: 0; top: 0; bottom: 0; background: var(--cream); }
.meter-mark { position: absolute; left: 50%; top: -7px; bottom: -7px; border-left: 2px solid var(--blue); }
.result .small { margin-top: 10px; }
.confirm-wrap { align-self: start; padding-top: 8px; padding-bottom: 40px; }
.confirm { border: 1px solid var(--cream); padding: 20px; margin-bottom: 32px; }
.confirm .no { font: 500 26px/1.1 var(--mono); margin: 4px 0 10px; }
.confirm .btn { margin-top: 14px; }
.confirm:focus { outline: 3px solid var(--blue); outline-offset: 2px; }

/* ---------- method diagram ---------- */
.diagram { margin: 0; padding-top: 8px; padding-bottom: 28px; }
.dg-box { overflow-x: auto; padding-top: 8px; padding-bottom: 8px; }
.dg { display: block; }
.dg text { font-family: var(--mono); font-size: 13px; fill: var(--cream); }
.dg .dg-rn { font-size: 12px; fill: var(--sub); }
.dg-row { fill: transparent; transition: fill 120ms linear; }
.dg-row.is-cur { fill: rgb(242 233 216 / 0.18); }
.dg-line { fill: none; stroke: var(--blue); stroke-width: 2.5; stroke-linejoin: round; stroke-linecap: round; stroke-dasharray: 1 1; stroke-dashoffset: 0; transition: stroke-dashoffset 600ms var(--ease); }
.dg.pre .dg-line { stroke-dashoffset: 1; transition: none; }
.diagram figcaption { font: 400 13px/1.4 var(--mono); color: var(--sub); margin-top: 8px; }

/* ---------- plates, faq, pager ---------- */
.plate { margin: 0; max-width: 320px; }
.plate img { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; }
.plate figcaption { font: 400 13px/1.4 var(--mono); color: var(--sub); margin-top: 8px; }
.plate-row { padding-top: 0; padding-bottom: 40px; }
.faq details { border-top: 1px solid var(--rule); }
.faq summary { cursor: pointer; padding: 12px 0; font: 600 18px/1.35 var(--serif); }
.faq summary:hover { color: var(--blue); }
.faq details p { padding: 0 0 16px; max-width: 64ch; }
.pager { border-top: 1px solid var(--rule); padding-top: 22px; padding-bottom: 22px; font-family: var(--mono); font-size: 15px; }
.to-end { text-align: right; }

/* ---------- footer ---------- */
.foot { padding-inline: 0; border-top: 1px solid var(--rule); padding-top: 24px; padding-bottom: 40px; row-gap: 12px; font: 400 14px/1.6 var(--mono); color: var(--sub); }
.foot-links { display: flex; gap: 18px; flex-wrap: wrap; }
.foot a { color: var(--blue); }
.foot a[aria-current=page] { color: var(--cream); }

/* ---------- all-pages sheet ---------- */
.sheet { position: fixed; inset: 0; z-index: 20; background: rgb(40 8 12 / 0.72); display: flex; justify-content: flex-end; }
.sheet[hidden] { display: none; }
.sheet-panel { width: min(480px, 100%); height: 100%; overflow-y: auto; background: var(--ground); border-left: 1px solid var(--cream); padding: 20px 24px 40px; }
.sheet-head { display: flex; justify-content: space-between; align-items: center; gap: 16px; padding-bottom: 16px; border-bottom: 1px solid var(--rule); }
.sheet-head h2 { font: 600 22px/1.2 var(--serif); }
.sheet-list { list-style: none; margin: 0; padding: 0; }
.sheet-list a { display: flex; flex-direction: column; padding: 12px 0; border-bottom: 1px solid var(--rule); color: var(--cream); text-decoration: none; }
.sheet-list a:hover .m-l { text-decoration: underline; }
.sheet-list a[aria-current=page] .m-l::after { content: ' · this page'; font: 400 13px var(--mono); color: var(--sub); }
.m-l { font: 600 18px/1.3 var(--serif); }
.m-n { font: 400 13px/1.4 var(--mono); color: var(--sub); }
body.is-locked { overflow: hidden; }

/* ---------- narrow: six columns fold to two × three ---------- */
@media (max-width: 799px) {
  .g, .rules { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rules i:nth-child(n+3) { display: none; }
  .rules i:nth-child(2) { border-right: 1px solid var(--rule); }
  .g > [class*=s], .ph > *, .band > *, .today > *, .pager > *, .foot > * { grid-column: 1 / -1; }
  .filters > .fld, .controls > .fld { grid-column: auto; }
  .controls > .s12, .controls > .s34 { grid-column: 1 / -1; }
  .entries ol > li { grid-column: auto; }
  .brand { grid-column: 1 / -1; }
  .now { grid-column: 1 / 2; margin-top: 8px; }
  .menu-btn { grid-column: 2 / 3; margin-top: 8px; }
  .col-n { font-size: 30px; }
  .col { padding: 10px 8px 12px; }
  .ph { padding-top: 36px; padding-bottom: 28px; }
  .today .band-h { grid-row: auto; }
  .to-end { text-align: left; }
  .tbl-6 { min-width: 640px; }
  .tbl-wide { min-width: 560px; }
  .plate { max-width: 240px; }
  .entry-n { font-size: 52px; }
  .kv > div, .kv-wide > div { grid-template-columns: 1fr; gap: 2px; }
}
@media (max-width: 560px) {
  .col-l { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
  .col { align-items: center; }
  .ph h1 { font-size: 40px; }
}

@media (prefers-reduced-motion: reduce) {
  .dg-line, .dg-row { transition: none !important; }
}
@media print {
  .rules, .cols, .menu-btn, .foot-links { display: none; }
}
.tbl .nt { font-family: var(--serif); font-size: 17px; }
.kv + .h3, .faq + .h3 { margin-top: 40px; }