/* ==========================================================================
   Teacher Library (test) — shared stylesheet
   Mobile-first. No framework. No external fonts (speed + privacy).
   Screen styles first, then print rules for the two tools.
   ========================================================================== */

:root {
  --ink:        #17302c;
  --ink-soft:   #40554f;
  --ink-faint:  #6b7f79;
  --paper:      #fbfaf6;
  --card:       #ffffff;
  --rule:       #e2ded3;
  --green:      #1d5c4f;
  --green-dark: #164a40;
  --green-pale: #eaf2ef;
  --amber:      #b4620a;
  --amber-pale: #fdf3e5;
  --focus:      #0b5fff;
  --radius:     10px;
  --wrap:       66rem;
  --wrap-text:  44rem;
  --shadow:     0 1px 2px rgba(23, 48, 44, .06), 0 6px 18px rgba(23, 48, 44, .05);
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: Georgia, "Iowan Old Style", "Times New Roman", serif;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
}

/* ---------- Links, focus, headings ------------------------------------- */

a { color: var(--green); text-underline-offset: .15em; }
a:hover { color: var(--green-dark); }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 3px;
}

h1, h2, h3, h4 {
  font-family: var(--serif);
  line-height: 1.2;
  color: var(--ink);
  margin: 0 0 .5em;
  font-weight: 600;
}

h1 { font-size: clamp(1.7rem, 1.3rem + 2.2vw, 2.6rem); letter-spacing: -.01em; }
h2 { font-size: clamp(1.35rem, 1.15rem + 1vw, 1.75rem); margin-top: 2rem; }
h3 { font-size: 1.2rem; margin-top: 1.5rem; }

p, ul, ol, dl, table { margin: 0 0 1rem; }
li { margin-bottom: .35rem; }

.lede { font-size: 1.15rem; color: var(--ink-soft); }

/* ---------- Layout ----------------------------------------------------- */

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 1rem; }
.wrap--text { max-width: var(--wrap-text); }

main { display: block; padding: 1.5rem 0 3rem; }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--green); color: #fff; padding: .6rem 1rem; z-index: 100;
}
.skip:focus { left: .5rem; top: .5rem; }

/* ---------- Test banner ------------------------------------------------ */

.testbanner {
  background: var(--amber-pale);
  border-bottom: 1px solid #f0ddc0;
  color: #6c3c05;
  font-size: .9375rem;
}
.testbanner .wrap { padding: .6rem 1rem; }
.testbanner strong { font-weight: 700; }

/* ---------- Header / nav ----------------------------------------------- */

.siteheader {
  background: var(--card);
  border-bottom: 1px solid var(--rule);
}
.siteheader .wrap {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: .85rem 1rem;
}
.brand {
  font-family: var(--serif);
  font-size: 1.2rem; font-weight: 700;
  color: var(--ink); text-decoration: none;
  display: inline-flex; align-items: baseline; gap: .5rem;
}
.brand .tag {
  font-family: var(--sans); font-size: .7rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .08em;
  color: var(--amber); border: 1px solid currentColor;
  border-radius: 999px; padding: .1rem .4rem;
}

.navtoggle {
  font: inherit; font-size: .9375rem;
  background: var(--card); color: var(--ink);
  border: 1px solid var(--rule); border-radius: 8px;
  padding: .4rem .7rem; cursor: pointer;
}
.nav { display: none; width: 100%; }
.nav[data-open="true"] { display: block; }
.nav ul {
  list-style: none; margin: .5rem 0 0; padding: 0;
  display: flex; flex-direction: column; gap: .1rem;
}
.nav a {
  display: block; padding: .55rem .25rem; text-decoration: none;
  color: var(--ink-soft); font-weight: 500; border-radius: 6px;
}
.nav a:hover { color: var(--green-dark); background: var(--green-pale); }
.nav a[aria-current="page"] { color: var(--green-dark); font-weight: 700; }

@media (min-width: 52rem) {
  .navtoggle { display: none; }
  .siteheader .wrap { flex-wrap: nowrap; }
  .nav { display: block !important; width: auto; }
  .nav ul { flex-direction: row; gap: .35rem; margin: 0; align-items: center; }
  .nav a { padding: .4rem .6rem; }
}

/* ---------- Breadcrumbs ------------------------------------------------ */

.crumbs { font-size: .875rem; color: var(--ink-faint); margin: 0 0 1rem; }
.crumbs ol { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: .3rem; }
.crumbs li + li::before { content: "›"; margin-right: .3rem; color: var(--rule); }

/* ---------- Hero ------------------------------------------------------- */

.hero {
  background: linear-gradient(180deg, var(--green-pale), var(--paper));
  border-bottom: 1px solid var(--rule);
  padding: 2.25rem 0 2rem;
}
.hero h1 { max-width: 30ch; }
.hero p { max-width: 58ch; }

.seasonal {
  display: inline-block; background: var(--green); color: #fff;
  font-size: .8125rem; font-weight: 600; letter-spacing: .02em;
  padding: .25rem .6rem; border-radius: 999px; margin-bottom: .9rem;
}

/* ---------- Buttons ---------------------------------------------------- */

.btn {
  display: inline-block; font: inherit; font-weight: 600;
  background: var(--green); color: #fff; text-decoration: none;
  border: 1px solid var(--green); border-radius: 8px;
  padding: .6rem 1.1rem; cursor: pointer;
}
.btn:hover { background: var(--green-dark); color: #fff; }
.btn--ghost { background: transparent; color: var(--green-dark); }
.btn--ghost:hover { background: var(--green-pale); color: var(--green-dark); }
.btn--small { padding: .35rem .7rem; font-size: .9375rem; }
.btn[disabled], .btn[aria-disabled="true"] {
  background: #d9d6cc; border-color: #d9d6cc; color: #5c5c56; cursor: not-allowed;
}
.btnrow { display: flex; flex-wrap: wrap; gap: .6rem; margin: 1rem 0; }

/* ---------- Cards and grids -------------------------------------------- */

.grid { display: grid; gap: 1rem; grid-template-columns: 1fr; margin: 0 0 1.5rem; padding: 0; list-style: none; }
@media (min-width: 40rem) { .grid--2, .grid--3 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 60rem) { .grid--3 { grid-template-columns: repeat(3, 1fr); } }

.card {
  background: var(--card); border: 1px solid var(--rule);
  border-radius: var(--radius); padding: 1.1rem 1.2rem;
  box-shadow: var(--shadow); margin: 0;
  display: flex; flex-direction: column;
}
.card h3 { margin-top: 0; }
.card h3 a { text-decoration: none; }
.card h3 a:hover { text-decoration: underline; }
.card p { color: var(--ink-soft); font-size: .9875rem; }
.card .meta { margin-top: auto; padding-top: .6rem; }

.meta { font-size: .8125rem; color: var(--ink-faint); }

/* ---------- Pills / tags ----------------------------------------------- */

.pills { list-style: none; display: flex; flex-wrap: wrap; gap: .4rem; margin: 0 0 1rem; padding: 0; }
.pill {
  display: inline-block; font-size: .8125rem; font-weight: 600;
  background: var(--green-pale); color: var(--green-dark);
  border-radius: 999px; padding: .2rem .65rem; margin: 0;
  text-decoration: none;
}
a.pill:hover { background: #ddeae6; }
.pill--plain { background: #f1efe8; color: var(--ink-soft); }

/* ---------- Notices ---------------------------------------------------- */

.notice {
  border-left: 4px solid var(--green);
  background: var(--green-pale);
  padding: .9rem 1rem; border-radius: 0 var(--radius) var(--radius) 0;
  margin: 1.25rem 0; font-size: .9875rem;
}
.notice--warn { border-left-color: var(--amber); background: var(--amber-pale); }
.notice--draft { border-left-color: #a33; background: #fdeeee; }
.notice p:last-child { margin-bottom: 0; }
.notice h2, .notice h3 { margin-top: 0; }

/* The quiet product footnote. Deliberately small and plain. */
.footnote {
  margin: 2rem 0 0; padding-top: .8rem;
  border-top: 1px solid var(--rule);
  font-size: .875rem; color: var(--ink-faint);
}

/* ---------- Download list ---------------------------------------------- */

.downloads { list-style: none; margin: 0 0 1rem; padding: 0; }
.downloads li {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: .5rem;
  border: 1px solid var(--rule); background: var(--card);
  border-radius: 8px; padding: .7rem .9rem; margin-bottom: .5rem;
}
.downloads .fmt {
  font-size: .75rem; font-weight: 700; letter-spacing: .05em;
  text-transform: uppercase; color: var(--ink-faint);
  border: 1px solid var(--rule); border-radius: 4px; padding: .05rem .35rem;
}
.downloads .pending { color: var(--amber); font-size: .875rem; font-style: italic; }

/* ---------- Reviewer box ----------------------------------------------- */

.reviewer {
  background: var(--card); border: 1px dashed var(--rule);
  border-radius: var(--radius); padding: 1rem 1.1rem; margin: 1.5rem 0;
}
.reviewer h2, .reviewer h3 { margin-top: 0; }
.reviewer .placeholder { color: var(--amber); font-style: italic; }

/* ---------- Forms ------------------------------------------------------ */

form { margin: 0; }
fieldset { border: 1px solid var(--rule); border-radius: var(--radius); padding: 1rem 1.1rem; margin: 0 0 1.25rem; background: var(--card); }
legend { font-family: var(--serif); font-size: 1.1rem; font-weight: 600; padding: 0 .35rem; }

.field { margin-bottom: 1rem; }
.field > label, .field > .label { display: block; font-weight: 600; margin-bottom: .25rem; }
.field .hint { display: block; font-size: .875rem; color: var(--ink-faint); margin-bottom: .35rem; }

input[type="text"], input[type="email"], input[type="number"], input[type="date"], select, textarea {
  font: inherit; width: 100%;
  color: var(--ink); background: #fff;
  border: 1px solid #c9c4b6; border-radius: 8px;
  padding: .5rem .65rem;
}
textarea { min-height: 9rem; resize: vertical; font-family: var(--sans); }
input[type="number"] { max-width: 8rem; }
select { max-width: 24rem; }

.check { display: flex; gap: .6rem; align-items: flex-start; margin-bottom: .8rem; }
.check input { margin-top: .35rem; flex: 0 0 auto; }
.check label { font-weight: 400; }

.row { display: grid; gap: 1rem; grid-template-columns: 1fr; }
@media (min-width: 40rem) { .row--2 { grid-template-columns: 1fr 1fr; } }

/* ---------- Tables ----------------------------------------------------- */

table { border-collapse: collapse; width: 100%; font-size: .9375rem; }
th, td { text-align: left; padding: .45rem .6rem; border: 1px solid var(--rule); vertical-align: top; }
thead th { background: var(--green-pale); }
caption { text-align: left; font-weight: 600; padding-bottom: .35rem; }

.tablescroll { overflow-x: auto; margin-bottom: 1rem; }

/* ---------- Tool chrome ------------------------------------------------ */

.toollayout { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 62rem) {
  .toollayout { grid-template-columns: 22rem 1fr; align-items: start; }
  .toolpanel { position: sticky; top: 1rem; }
}

.privacyflag {
  border: 1px solid #cfe0da; background: var(--green-pale);
  border-radius: var(--radius); padding: .85rem 1rem; margin: 0 0 1.25rem;
  font-size: .9375rem;
}
.privacyflag strong { color: var(--green-dark); }

.output { margin-top: 1rem; }
.output:empty { display: none; }

.sheet {
  background: #fff; border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 1.1rem 1.2rem; margin-bottom: 1rem; box-shadow: var(--shadow);
}
.sheet h3 { margin-top: 0; }
.sheet .sheetmeta { font-size: .875rem; color: var(--ink-faint); margin-bottom: .6rem; }

.eventlist { list-style: none; margin: 0 0 .5rem; padding: 0; }
.eventlist li { display: flex; gap: .4rem; align-items: center; margin-bottom: .4rem; }
.eventlist input[type="text"] { flex: 1 1 auto; }
.xbtn {
  font: inherit; line-height: 1; background: #fff; color: var(--ink-soft);
  border: 1px solid var(--rule); border-radius: 6px; padding: .35rem .55rem; cursor: pointer;
}
.xbtn:hover { background: #f4f2eb; color: #a33; }

.cert {
  border: 3px double var(--green); border-radius: 6px;
  padding: 1.4rem 1.2rem; text-align: center; background: #fff;
  margin-bottom: 1rem;
}
.cert .certkind { font-family: var(--sans); font-size: .8rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--amber); }
.cert .certhead { font-family: var(--serif); font-size: 1.5rem; margin: .4rem 0 .2rem; }
.cert .certname { font-family: var(--serif); font-size: 1.9rem; font-weight: 700; margin: .7rem 0 .3rem; }
.cert .certline { color: var(--ink-soft); margin: .2rem 0; }
.cert .certsign { display: flex; justify-content: space-between; gap: 1rem; margin-top: 1.6rem; font-size: .8125rem; color: var(--ink-faint); }
.cert .certsign span { flex: 1 1 0; border-top: 1px solid var(--ink-faint); padding-top: .3rem; }
.cert .writeline { display: inline-block; min-width: 16rem; border-bottom: 1.5px solid var(--ink-faint); height: 1.9rem; }

.slip {
  border: 1px dashed var(--ink-faint); border-radius: 6px;
  padding: .7rem .8rem; margin-bottom: .6rem; font-size: .9375rem;
}

/* ---------- Footer ----------------------------------------------------- */

.sitefooter {
  background: #15231f; color: #d6ded9;
  padding: 2rem 0 2.5rem; margin-top: 2rem;
  font-size: .9375rem;
}
.sitefooter a { color: #bcd8cf; }
.sitefooter h2 { color: #fff; font-size: 1rem; font-family: var(--sans); text-transform: uppercase; letter-spacing: .06em; margin: 0 0 .6rem; }
.footcols { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 44rem) { .footcols { grid-template-columns: repeat(3, 1fr); } }
.sitefooter ul { list-style: none; margin: 0; padding: 0; }
.sitefooter li { margin-bottom: .35rem; }
.footnotebar { border-top: 1px solid #2c3d37; margin-top: 1.5rem; padding-top: 1rem; color: #9aaba4; font-size: .8125rem; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px;
  margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

/* ==========================================================================
   PRINT — A4, black and white, no wasted toner.
   ========================================================================== */

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

  :root { --rule: #000; }

  body {
    background: #fff; color: #000;
    font-size: 11pt; line-height: 1.35;
    font-family: var(--sans);
  }

  .testbanner, .siteheader, .sitefooter, .crumbs, .nav, .navtoggle,
  .toolpanel, .btn, .btnrow, .privacyflag, .noprint, .hero .seasonal {
    display: none !important;
  }

  main { padding: 0; }
  .wrap { max-width: none; padding: 0; }
  .toollayout { display: block; }

  a { color: #000; text-decoration: none; }
  h1 { font-size: 16pt; }
  h2 { font-size: 13pt; margin-top: 0; }
  h3 { font-size: 12pt; }

  .sheet {
    border: 1px solid #000; border-radius: 0; box-shadow: none;
    padding: 0 0 6mm; margin: 0 0 6mm; border: 0; border-bottom: 1px solid #000;
    break-inside: avoid;
  }
  .sheet--page { break-after: page; border-bottom: 0; padding-bottom: 0; }
  .sheet--page:last-child { break-after: auto; }

  table { font-size: 10.5pt; }
  th, td { border: 1px solid #000; padding: 2.2mm 2.5mm; }
  thead th { background: #fff !important; font-weight: 700; border-bottom: 1.5pt solid #000; }
  tr, td, th { break-inside: avoid; }

  /* Certificate and result-slip print rules live on the two tool pages,
     because those pages set their own @page size (landscape for certificates). */

  .notice, .reviewer { border: 1px solid #000; background: #fff; border-radius: 0; }
  .printonly { display: block !important; }
}

.printonly { display: none; }