/* Trade Charges — a receipt column: paper white, bill green, stamp red, perforated edges. */
@font-face { font-family: "Archivo"; src: url(fonts/archivo.woff2) format("woff2"); font-weight: 100 900; font-display: swap; 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+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Archivo"; src: url(fonts/archivo-ext.woff2) format("woff2"); font-weight: 100 900; font-display: swap; unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF; }
@font-face { font-family: "Courier Prime"; src: url(fonts/courier-prime.woff2) format("woff2"); font-weight: 400; font-display: swap; 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+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }
@font-face { font-family: "Courier Prime"; src: url(fonts/courier-prime-700.woff2) format("woff2"); font-weight: 700; font-display: swap; 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+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD; }

:root {
  --table: #e7ece8;
  --paper: #fffdf6;
  --ink: #1d2420;
  --muted: #56605a;
  --green: #1f5a3e;
  --green-2: #2f7a56;
  --green-soft: #e3efe7;
  --red: #b83224;
  --line: #d3dbd5;
  --sans: "Archivo", system-ui, sans-serif;
  --mono: "Courier Prime", "Archivo", "Courier New", monospace; /* Courier Prime has no ₹ glyph; Archivo supplies it */
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--table); color: var(--ink); font: 400 1.125rem/1.6 var(--sans); }
h1, h2, h3 { font-weight: 750; line-height: 1.15; margin: 0; letter-spacing: -0.01em; }
p, ul, dl, figure { margin: 0; }
a { color: var(--green); text-underline-offset: 0.18em; }
a:focus-visible, summary:focus-visible, input:focus-visible, .scroll:focus-visible { outline: 3px solid var(--red); outline-offset: 2px; }
.skip { position: absolute; inset-inline-start: 1rem; inset-block-start: -4rem; background: var(--paper); padding: 0.5rem 1rem; z-index: 5; }
.skip:focus { inset-block-start: 1rem; }
.vh { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

/* bar */
.bar { background: var(--green); color: #fff; }
.bar-inner { max-width: 64rem; margin: 0 auto; padding: 0.7rem 1rem; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 0.6rem 1.2rem; }
.brand { display: flex; align-items: center; gap: 0.55rem; color: #fff; text-decoration: none; }
.brand-mark { inline-size: 2rem; block-size: 2rem; }
.bm-paper { fill: var(--paper); }
.bm-line { stroke: var(--green); stroke-width: 2; }
.brand-name { font: 750 1.3rem/1 var(--sans); }
.top-links { display: none; }
.top-links ul { list-style: none; padding: 0; display: flex; gap: 1.1rem; }
.top-links a { color: #fff; text-decoration: none; font-weight: 600; font-size: 1rem; padding-block: 0.3rem; border-block-end: 3px solid transparent; }
.top-links a[aria-current="page"] { border-block-end-color: #f1c9c3; }
@media (hover: hover) and (pointer: fine) { .top-links a:hover { border-block-end-color: #9fd0b5; } }
.menu summary { list-style: none; cursor: pointer; font-weight: 700; padding: 0.45rem 1rem; border: 2px solid #fff; border-radius: 0.3rem; }
.menu summary::-webkit-details-marker { display: none; }
.menu[open] { flex-basis: 100%; }
.menu ul { list-style: none; padding: 0.5rem 0 0.2rem; display: grid; }
.menu a { display: block; color: #fff; text-decoration: none; padding: 0.55rem 0; border-block-end: 1px solid #3b7a5b; font-weight: 600; }
.menu a[aria-current="page"] { color: #f6d6d1; }
.bar a:focus-visible, .bar summary:focus-visible { outline-color: #fff; }
@media (min-width: 60rem) { .top-links { display: block; } .menu { display: none; } }

/* centred narrow column */
main { max-width: 38rem; margin: 0 auto; padding: 2rem 1rem 3rem; display: grid; grid-template-columns: minmax(0, 1fr); gap: 2.4rem; }
.hero { display: grid; gap: 0.6rem; text-align: center; }
.kicker { font: 700 0.95rem/1.3 var(--mono); letter-spacing: 0.12em; text-transform: uppercase; color: var(--red); }
.hero h1 { font-size: clamp(2rem, 6vw, 2.8rem); }
.lede { font-size: 1.15rem; color: var(--muted); }
.sec { display: grid; gap: 0.9rem; }
.sec h2 { font-size: 1.45rem; padding-block-end: 0.3rem; border-block-end: 2px dashed var(--line); }
.cap { font-size: 0.95rem; color: var(--muted); }

/* the receipt */
.receipt { position: relative; background: var(--paper); padding: 1.6rem 1.2rem 1.8rem; display: grid; gap: 1rem; font-family: var(--mono);
  --perf: radial-gradient(circle at 50% 0, var(--table) 6px, transparent 6.5px);
  background-image: radial-gradient(circle at 8px -2px, var(--table) 6px, transparent 6.5px), radial-gradient(circle at 8px calc(100% + 2px), var(--table) 6px, transparent 6.5px);
  background-size: 16px 100%; background-repeat: repeat-x; box-shadow: 0 2px 10px rgb(29 36 32 / 0.08); }
@media (min-width: 30rem) { .receipt { padding-inline: 1.8rem; } }
.rc-head { text-align: center; border-block-end: 2px dashed var(--ink); padding-block-end: 0.8rem; display: grid; gap: 0.2rem; }
.rc-title { font-weight: 700; font-size: 1.25rem; text-transform: uppercase; letter-spacing: 0.06em; }
.rc-sub, .trade { font-size: 1rem; color: var(--muted); }
.trade { text-align: center; }
.inputs { border: 0; margin: 0; padding: 0; min-inline-size: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.7rem 0.9rem; }
.inputs legend { font-weight: 700; padding: 0; margin-block-end: 0.5rem; font-size: 1rem; text-transform: uppercase; letter-spacing: 0.06em; }
.fld { display: grid; gap: 0.2rem; align-content: end; }
.fld label { font-size: 0.95rem; line-height: 1.3; }
.fld input { inline-size: 100%; min-inline-size: 0; font: 700 1.1rem/1.3 var(--mono); padding: 0.45rem 0.5rem; border: 2px solid var(--ink); border-radius: 0.2rem; background: #fff; color: var(--ink); text-align: end; }
.fld input[aria-invalid="true"] { border-color: var(--red); background: #fbe9e6; }
.err { font: 700 1rem/1.4 var(--sans); color: var(--red); background: #fbe9e6; padding: 0.6rem 0.8rem; border-radius: 0.2rem; }
.err[hidden] { display: none; }
.bill { display: grid; }
.ln { display: flex; justify-content: space-between; align-items: baseline; gap: 0.3rem 0.8rem; padding-block: 0.45rem; border-block-end: 1px dotted #9aa59e; flex-wrap: wrap; }
.ln dt { flex: 1 1 12rem; }
.ln dd { margin: 0; font-weight: 700; font-variant-numeric: tabular-nums; white-space: nowrap; margin-inline-start: auto; }
.rate { display: block; font-size: 0.9rem; color: var(--muted); }
.ln.vals dt, .ln.vals dd { color: var(--muted); font-weight: 400; }
.ln.total { border-block: 2px solid var(--ink); margin-block-start: 0.3rem; font-size: 1.2rem; }
.ln.total dt { font-weight: 700; }
.ln.net { background: var(--green-soft); padding-inline: 0.4rem; }
.stamp { justify-self: end; transform: rotate(-8deg); font: 700 1rem/1 var(--mono); letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--red); border: 3px double var(--red); border-radius: 0.3rem; padding: 0.3rem 0.5rem; opacity: 0.85; pointer-events: none; }

/* lists, quotes, tables */
.teasers { list-style: none; padding: 0; display: grid; gap: 0.7rem; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); }
.teasers a { display: grid; gap: 0.15rem; background: var(--paper); padding: 0.9rem 1rem; text-decoration: none; color: var(--ink); border-inline-start: 6px solid var(--green); }
.teasers a:focus-visible { outline-offset: 2px; }
@media (hover: hover) and (pointer: fine) { .teasers a:hover { border-inline-start-color: var(--red); } }
.t-name { font-weight: 750; color: var(--green); }
.t-total { font: 700 1.3rem/1.2 var(--mono); }
.t-sub { font-size: 0.95rem; color: var(--muted); }
.how, .dates, .src { padding-inline-start: 1.2rem; display: grid; gap: 0.5rem; }
.note { background: var(--green-soft); padding: 0.9rem 1rem; border-radius: 0.2rem; }
.q { background: var(--paper); border-inline-start: 4px solid var(--red); padding: 0.8rem 1rem; display: grid; gap: 0.35rem; }
.q blockquote { margin: 0; }
.q blockquote p { font: 400 1rem/1.5 var(--mono); }
.q figcaption { font-size: 0.9rem; color: var(--muted); }
.scroll { overflow-x: auto; position: relative; }
table { border-collapse: collapse; inline-size: 100%; background: var(--paper); font-size: 0.95rem; }
th, td { text-align: start; vertical-align: top; padding: 0.5rem 0.5rem; border-block-end: 1px solid var(--line); }
thead th { border-block-end: 2px solid var(--ink); }
td { font-family: var(--mono); }

/* footer */
.foot { background: var(--green); color: #e6f2eb; }
.foot-inner { max-width: 64rem; margin: 0 auto; padding: 1.6rem 1rem 2rem; display: grid; gap: 0.6rem; font-size: 1rem; }
.foot a { color: #fff; }
.foot a:focus-visible { outline-color: #fff; }
.rc-note { font-size: 0.9rem; color: var(--muted); }