/* ==========================================================================
   Digital Literacy & Applied ICT — stylesheet
   Calm, accessible, print-friendly. Light + dark. No web fonts / no deps.
   ========================================================================== */

:root {
  --bg: #f4f6fb;
  --surface: #ffffff;
  --surface-2: #f8fafc;
  --ink: #182033;
  --ink-soft: #3d475e;
  --muted: #6a7488;
  --border: #e3e7f0;
  --border-strong: #cfd6e6;
  --primary: #3a4ed6;
  --primary-ink: #ffffff;
  --primary-soft: #eef0fe;
  --accent: #d98008;          /* safety amber */
  --accent-soft: #fdf2e0;
  --accent-border: #f2d5a6;

  --core: #0d9488;
  --core-soft: #e6f5f3;
  --productivity: #4f46e5;
  --productivity-soft: #ecebfd;
  --access: #8b2bbd;          /* access & inclusion */
  --access-soft: #f7ecfb;
  --safety: #c2700a;
  --safety-soft: #fbf0dd;
  --review: #5b6472;
  --review-soft: #eef1f6;

  --ring: #3a4ed6;
  --r: 16px;
  --r-sm: 10px;
  --shadow: 0 1px 2px rgba(20,28,48,.05), 0 6px 20px rgba(20,28,48,.06);
  --shadow-sm: 0 1px 2px rgba(20,28,48,.06);
  --maxw: 1080px;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f1420;
    --surface: #171d2b;
    --surface-2: #1c2333;
    --ink: #eef1f7;
    --ink-soft: #c3cad8;
    --muted: #939db2;
    --border: #29324a;
    --border-strong: #3a4560;
    --primary: #7d8cf5;
    --primary-ink: #0f1420;
    --primary-soft: #1e2643;
    --accent: #f0a63d;
    --accent-soft: #2a2213;
    --accent-border: #4a3a1a;
    --core: #4dd8c8;
    --core-soft: #12302c;
    --productivity: #a3a0fb;
    --productivity-soft: #1e1f3d;
    --access: #d79bf0;
    --access-soft: #2d1c36;
    --safety: #f0a63d;
    --safety-soft: #2a2213;
    --review: #9aa4b6;
    --review-soft: #202634;
    --ring: #7d8cf5;
    --shadow: 0 1px 2px rgba(0,0,0,.3), 0 8px 24px rgba(0,0,0,.35);
    --shadow-sm: 0 1px 2px rgba(0,0,0,.3);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { line-height: 1.2; color: var(--ink); letter-spacing: -.01em; }
h1 { font-size: clamp(1.8rem, 1.2rem + 2.4vw, 2.7rem); margin: .2em 0 .3em; }
h2 { font-size: clamp(1.3rem, 1.1rem + 1vw, 1.6rem); }
h3 { font-size: 1.06rem; }
p { margin: 0 0 1rem; }
a { color: var(--primary); text-decoration-thickness: 1.5px; text-underline-offset: 2px; }
a:hover { text-decoration-color: currentColor; }
strong { font-weight: 650; }
small { font-size: .82em; }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: clamp(16px, 4vw, 32px); }
.muted { color: var(--muted); }
.small { font-size: .86rem; }
.eyebrow { text-transform: uppercase; letter-spacing: .08em; font-size: .78rem; font-weight: 700; color: var(--primary); margin: 0 0 .3rem; }
.lede { font-size: 1.12rem; color: var(--ink-soft); max-width: 62ch; }

.visually-hidden, .skip-link:not(:focus):not(:active) {
  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-link {
  position: fixed; top: 10px; left: 10px; z-index: 100; background: var(--primary);
  color: var(--primary-ink); padding: 10px 16px; border-radius: 8px; font-weight: 600;
}

:where(a, button, input, [tabindex]):focus-visible {
  outline: 3px solid var(--ring); outline-offset: 2px; border-radius: 4px;
}

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner { display: flex; align-items: center; gap: 16px; min-height: 62px; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); }
.brand-mark {
  display: grid; place-items: center; width: 38px; height: 38px; border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), color-mix(in srgb, var(--primary) 60%, var(--core)));
  color: #fff; font-weight: 800; font-size: .95rem; letter-spacing: .02em; box-shadow: var(--shadow-sm);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-text strong { font-size: 1rem; white-space: nowrap; }
.brand-text small { color: var(--muted); font-size: .74rem; }

/* Nav and the platform picker travel together: side by side on a wide screen,
   and stacked inside the same dropdown once the header collapses. */
.header-menu { display: flex; align-items: center; gap: 14px; margin-left: auto; }
.site-nav { display: flex; align-items: center; gap: 2px; flex-wrap: wrap; }
.site-nav a {
  color: var(--ink-soft); text-decoration: none; font-weight: 550; font-size: .92rem;
  padding: 8px 10px; border-radius: 9px; white-space: nowrap;
}
.site-nav a:hover { background: var(--surface-2); color: var(--ink); }
.site-nav a[aria-current="page"] { color: var(--primary); background: var(--primary-soft); }

.nav-toggle {
  display: none; align-items: center; gap: 8px; margin-left: auto; cursor: pointer;
  background: var(--surface); border: 1px solid var(--border-strong); color: var(--ink);
  padding: 8px 12px; border-radius: 9px; font: inherit; font-size: .9rem; font-weight: 600;
}
.nav-toggle-bars, .nav-toggle-bars::before, .nav-toggle-bars::after {
  content: ""; display: block; width: 16px; height: 2px; background: currentColor; position: relative;
}
.nav-toggle-bars::before { position: absolute; top: -5px; }
.nav-toggle-bars::after { position: absolute; top: 5px; }

/* ---------- Platform picker (Microsoft 365 / Google / Apple) ----------
   Hidden until JavaScript marks the document, exactly like the menu button:
   without it the control could not do anything, and the pages fall back to
   the default platform. */
.platform-picker { display: none; align-items: center; gap: 8px; }
html.js .platform-picker { display: inline-flex; }
/* Wide screens have no room for a label beside seven nav links, so it is left
   for screen readers only; the option text ("Microsoft 365") does the work.
   The dropdown shows it in full. */
.platform-picker label {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
  font-size: .72rem; font-weight: 700; color: var(--muted);
  text-transform: uppercase; letter-spacing: .06em;
}
.platform-picker select {
  font: inherit; font-size: .85rem; font-weight: 600; padding: 7px 10px;
  border-radius: 9px; border: 1px solid var(--border-strong);
  background: var(--surface); color: var(--ink); max-width: 11rem;
}

@media (max-width: 1160px) {
  .header-inner { position: relative; flex-wrap: wrap; }
  /* No-JS fallback: keep the menu visible, stacked full-width below the bar,
     and hide the menu button (which would be inert without JavaScript). */
  .header-menu { width: 100%; flex-direction: column; align-items: stretch; gap: 10px; margin-left: 0; }
  .site-nav { flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav a { padding: 12px 14px; border-radius: 8px; }
  /* Room to spare down here, so the picker gets its label back. */
  .platform-picker { padding: 2px 4px 6px; }
  .platform-picker label { position: static; width: auto; height: auto; margin: 0; clip: auto; overflow: visible; }
  .platform-picker select { max-width: none; flex: 1; }
  /* Only once JavaScript has marked the document (html.js) do we reveal the
     toggle and collapse the menu into a dropdown it can open and close. */
  html.js .nav-toggle { display: inline-flex; }
  html.js .header-menu {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    background: var(--surface); border-bottom: 1px solid var(--border); padding: 8px;
    box-shadow: var(--shadow);
  }
  html.js .header-menu.is-open { display: flex; }
}

/* ---------- Layout blocks ---------- */
main.wrap { padding-top: 28px; padding-bottom: 56px; }
section + section, .two-col, .prose-block, .year-grid-section, .callout, .half-term, .lesson-grid { margin-top: 34px; }
.page-head { margin-bottom: 8px; }

.breadcrumb { font-size: .88rem; color: var(--muted); margin: 4px 0 18px; }
.breadcrumb a { color: var(--ink-soft); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

.two-col { display: grid; gap: 22px; grid-template-columns: 1fr 1fr; }
@media (max-width: 720px) { .two-col { grid-template-columns: 1fr; } }
.prose-block p { max-width: 68ch; }

/* ---------- Hero ---------- */
.hero {
  display: grid; grid-template-columns: 1.35fr 1fr; gap: 32px; align-items: center;
  background:
    radial-gradient(120% 140% at 100% 0%, color-mix(in srgb, var(--primary) 14%, transparent), transparent 60%),
    var(--surface);
  border: 1px solid var(--border); border-radius: var(--r); padding: clamp(24px, 4vw, 44px); box-shadow: var(--shadow);
}
.hero h1 { margin-top: .1em; }
.hero-meta { color: var(--muted); font-weight: 550; font-size: .95rem; }
@media (max-width: 800px) { .hero { grid-template-columns: 1fr; } }

/* Search */
.lesson-search { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--r-sm); padding: 18px; }
.lesson-search label { font-weight: 650; display: block; margin-bottom: 8px; }
.lesson-search input[type="search"] {
  width: 100%; font: inherit; font-size: 1rem; padding: 12px 14px; border-radius: 10px;
  border: 1px solid var(--border-strong); background: var(--surface); color: var(--ink);
}
.search-results { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 6px; max-height: 320px; overflow: auto; }
.search-results li a {
  display: block; text-decoration: none; color: var(--ink); background: var(--surface);
  border: 1px solid var(--border); border-radius: 9px; padding: 9px 12px;
}
.search-results li a:hover, .search-results li a:focus-visible { border-color: var(--primary); background: var(--primary-soft); }
.search-results .sr-focus { display: block; font-weight: 600; }
.search-results .sr-meta { color: var(--muted); font-size: .82rem; }
.search-empty { color: var(--muted); font-size: .9rem; padding: 6px 2px; }

/* ---------- Buttons / chips / tags ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; text-decoration: none; cursor: pointer;
  background: var(--primary); color: var(--primary-ink); border: 1px solid var(--primary);
  padding: 10px 16px; border-radius: 10px; font-weight: 600; font-size: .94rem; box-shadow: var(--shadow-sm);
}
.btn:hover { filter: brightness(1.05); }
.btn-ghost { background: transparent; color: var(--primary); }
.btn-ghost:hover { background: var(--primary-soft); filter: none; }
.callout-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; }

.chip {
  display: inline-flex; align-items: center; gap: 6px; text-decoration: none;
  background: var(--surface-2); color: var(--ink-soft); border: 1px solid var(--border);
  padding: 4px 10px; border-radius: 999px; font-size: .82rem; font-weight: 550; white-space: nowrap;
}
a.chip:hover { border-color: var(--primary); color: var(--primary); }
.chip-icon { font-size: .95em; }

.tag { display: inline-block; font-size: .7rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; padding: 2px 8px; border-radius: 6px; vertical-align: middle; }
.tag-safety { background: var(--safety-soft); color: var(--safety); }
.tag-optional { background: var(--surface-2); color: var(--muted); border: 1px dashed var(--border-strong); }
.tag-year { background: var(--primary-soft); color: var(--primary); }

.badge {
  display: inline-block; font-size: .8rem; font-weight: 600; padding: 4px 10px; border-radius: 8px;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--ink-soft);
}
.badge-time { color: var(--muted); }
.badge-optional { color: var(--muted); border-style: dashed; }

/* Thread pills */
.week-thread {
  display: inline-block; font-size: .74rem; font-weight: 700; padding: 3px 9px; border-radius: 7px;
  letter-spacing: .01em;
}
.thread-core { background: var(--core-soft); color: var(--core); }
.thread-productivity { background: var(--productivity-soft); color: var(--productivity); }
.thread-safety { background: var(--safety-soft); color: var(--safety); }
.thread-access { background: var(--access-soft); color: var(--access); }
.thread-review { background: var(--review-soft); color: var(--review); }

/* ---------- Year grid (home) ---------- */
.year-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
@media (max-width: 700px) { .year-grid { grid-template-columns: 1fr; } }
.year-card {
  display: flex; flex-direction: column; gap: 4px; text-decoration: none; color: var(--ink);
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-sm);
  padding: 20px; box-shadow: var(--shadow-sm); transition: transform .12s ease, box-shadow .12s ease, border-color .12s;
}
.year-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: var(--primary); }
.year-card-num { font-size: .8rem; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; color: var(--primary); }
.year-card-title { font-size: 1.22rem; font-weight: 700; }
.year-card-blurb { color: var(--ink-soft); font-size: .95rem; }
.year-card-meta { color: var(--muted); font-size: .82rem; margin-top: 6px; }

/* ---------- Thread cards (home) ---------- */
.thread-cards { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 820px) { .thread-cards { grid-template-columns: 1fr; } }
.thread-card { background: var(--surface); border: 1px solid var(--border); border-left: 5px solid var(--border-strong); border-radius: var(--r-sm); padding: 18px 20px; box-shadow: var(--shadow-sm); }
.thread-card h3 { margin: 0 0 6px; }
.thread-card p { margin: 0; color: var(--ink-soft); font-size: .95rem; }
.thread-card.thread-core { border-left-color: var(--core); }
.thread-card.thread-productivity { border-left-color: var(--productivity); }
.thread-card.thread-safety { border-left-color: var(--safety); }

/* ---------- Callouts ---------- */
.callout {
  display: flex; gap: 22px; align-items: center; justify-content: space-between; flex-wrap: wrap;
  border-radius: var(--r); padding: 24px clamp(20px, 3vw, 32px); box-shadow: var(--shadow-sm);
}
.callout h2 { margin-top: 0; }
.callout p { margin-bottom: 0; max-width: 64ch; }
.callout > div { flex: 1 1 340px; }
.callout-safety { background: var(--accent-soft); border: 1px solid var(--accent-border); }
.callout-safety h2 { color: var(--safety); }
.callout-mail { background: var(--core-soft); border: 1px solid color-mix(in srgb, var(--core) 30%, transparent); }
.callout-mail h2 { color: var(--core); }
.callout-doc { background: var(--productivity-soft); border: 1px solid color-mix(in srgb, var(--productivity) 30%, transparent); }
.callout-doc h2 { color: var(--productivity); }
.callout-privacy { background: var(--surface); border: 1px solid var(--border); }
.callout-privacy h2 { font-size: 1.15rem; }

/* ---------- Year page: toolbar + weeks ---------- */
.toolbar { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-sm); padding: 14px 16px; box-shadow: var(--shadow-sm); margin-top: 20px; }
.toolbar-row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.toolbar-row + .toolbar-row { margin-top: 10px; }
.filter-text { flex: 1 1 220px; font: inherit; font-size: .95rem; padding: 9px 12px; border-radius: 9px; border: 1px solid var(--border-strong); background: var(--surface-2); color: var(--ink); }
.filter-chips { }
.filter-chip {
  cursor: pointer; font: inherit; font-size: .82rem; font-weight: 600; padding: 6px 11px; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--border-strong); color: var(--ink-soft);
}
.filter-chip:hover { border-color: var(--primary); color: var(--primary); }
.filter-chip[aria-pressed="true"] { background: var(--primary); border-color: var(--primary); color: var(--primary-ink); }
.filter-chip.is-clear { margin-left: auto; color: var(--muted); }
.filter-status { margin: 10px 0 0; }

.legend { margin: 16px 0 4px; display: flex; gap: 18px; flex-wrap: wrap; }
.legend-item { display: inline-flex; align-items: center; gap: 8px; }
.legend-swatch { width: 14px; height: 14px; border-radius: 4px; background: var(--surface-2); border: 1px solid var(--border); display: inline-block; }
.legend-swatch.is-safety { background: var(--accent-soft); border-color: var(--accent); border-left: 4px solid var(--accent); }
.legend-swatch.is-optional { border-left: 4px dashed var(--border-strong); }

.half-term-head { display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; border-bottom: 2px solid var(--border); padding-bottom: 8px; margin-bottom: 14px; }
.half-term-head h2 { margin: 0; }
.half-term-theme { margin: 0; color: var(--muted); font-weight: 550; }

.week-list { display: grid; gap: 10px; }
.week-card {
  display: flex; align-items: stretch; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-sm);
  padding: 14px 16px; box-shadow: var(--shadow-sm); transition: border-color .12s, box-shadow .12s;
}
.week-card:hover { border-color: var(--border-strong); box-shadow: var(--shadow); }
.week-card.is-safety { border-left: 4px solid var(--accent); background: color-mix(in srgb, var(--accent-soft) 55%, var(--surface)); }
.week-card.is-optional { border-left: 4px dashed var(--border-strong); }
.week-card-main { display: flex; gap: 14px; align-items: flex-start; text-decoration: none; color: var(--ink); flex: 1 1 340px; }
.week-num {
  /* 52px, not 46: "Wk 10" through "Wk 30" need 45px and were wrapping. */
  flex: none; display: grid; place-items: center; width: 52px; height: 46px; border-radius: 10px;
  white-space: nowrap;
  background: var(--surface-2); border: 1px solid var(--border); font-weight: 700; font-size: .8rem; color: var(--ink-soft);
}
.is-safety .week-num { background: var(--surface); border-color: var(--accent-border); color: var(--safety); }
.is-optional .week-num { font-size: .68rem; border-style: dashed; color: var(--muted); }
.week-body { display: flex; flex-direction: column; gap: 3px; }
.week-focus { font-weight: 650; font-size: 1.02rem; }
.week-obj { color: var(--ink-soft); font-size: .92rem; }
.week-thread { align-self: flex-start; margin-top: 3px; }
.week-tools { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; align-content: center; }
.week-card[hidden] { display: none; }

/* ---------- Lesson page ---------- */
.lesson-head .objective {
  font-size: 1.15rem; color: var(--ink); background: var(--surface); border: 1px solid var(--border);
  border-left: 4px solid var(--primary); border-radius: 10px; padding: 14px 16px; margin: 14px 0; max-width: 70ch;
}
.objective-label { display: inline-block; font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; color: var(--primary); margin-right: 8px; }
.lesson-badges { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 12px 0; }
.lesson-tools { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 8px; }
.lesson-tools-label { font-size: .8rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }

.lesson-grid { display: grid; grid-template-columns: 1.7fr 1fr; gap: 22px; align-items: start; }
@media (max-width: 860px) { .lesson-grid { grid-template-columns: 1fr; } }
.lesson-col-main { display: grid; gap: 22px; }
.lesson-col-side { display: grid; gap: 18px; position: sticky; top: 78px; }
@media (max-width: 860px) { .lesson-col-side { position: static; } }

.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r); padding: clamp(18px, 3vw, 26px); box-shadow: var(--shadow-sm); }
.panel h2 { margin-top: 0; }
.panel-tight { padding: 18px 20px; }
.panel-head { margin-bottom: 14px; }
.panel-head h2 { margin-bottom: 2px; }

.plan { list-style: none; counter-reset: step; margin: 0; padding: 0; display: grid; gap: 0; }
.plan-step { position: relative; padding: 16px 0 16px 46px; border-top: 1px solid var(--border); }
.plan-step:first-child { border-top: 0; padding-top: 0; }
.plan-step::before {
  counter-increment: step; content: counter(step);
  position: absolute; left: 0; top: 14px; width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center; background: var(--primary-soft); color: var(--primary); font-weight: 700; font-size: .9rem;
}
.plan-step:first-child::before { top: 0; }
.plan-step-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 3px; }
.plan-step-name { font-weight: 700; font-size: 1.02rem; }
.plan-mins { color: var(--muted); font-size: .82rem; font-weight: 600; white-space: nowrap; }
.plan-step p { margin: 0; color: var(--ink-soft); }

.diff-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 560px) { .diff-grid { grid-template-columns: 1fr; } }
.diff-grid h3 { margin: 0 0 4px; }
.diff-grid p { margin: 0; color: var(--ink-soft); font-size: .94rem; }

.ticklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.ticklist li { position: relative; padding-left: 28px; color: var(--ink-soft); font-size: .94rem; }
.ticklist li::before {
  content: ""; position: absolute; left: 0; top: .35em; width: 16px; height: 16px; border-radius: 4px;
  border: 1.5px solid var(--border-strong); background: var(--surface-2);
}
.lesson-safety { margin: 20px 0; }
.lesson-safety h2 { font-size: 1.2rem; }

/* ---------- Safety page ---------- */
.strand-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 8px; }
@media (max-width: 760px) { .strand-grid { grid-template-columns: 1fr; } }
.strand-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-sm); padding: 20px 22px; box-shadow: var(--shadow-sm); scroll-margin-top: 80px; }
.strand-card h2 { margin: 0 0 4px; font-size: 1.2rem; }
.strand-weeks { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 8px; }
.strand-weeks a { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); padding: 8px 10px; border-radius: 8px; border: 1px solid var(--border); background: var(--surface-2); }
.strand-weeks a:hover { border-color: var(--primary); }
.strand-week-focus { font-weight: 600; margin-right: auto; }

/* ---------- Tools page ---------- */
.tool-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; margin-top: 8px; }
@media (max-width: 760px) { .tool-grid { grid-template-columns: 1fr; } }
.tool-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-sm); padding: 20px 22px; box-shadow: var(--shadow-sm); scroll-margin-top: 80px; }
.tool-card-head { display: flex; align-items: center; gap: 14px; margin-bottom: 6px; }
.tool-card-head h2 { margin: 0; font-size: 1.15rem; }
.tool-icon { font-size: 1.7rem; line-height: 1; }
.tool-count { margin-left: auto; font-size: .78rem; font-weight: 700; color: var(--muted); background: var(--surface-2); border: 1px solid var(--border); padding: 3px 10px; border-radius: 999px; white-space: nowrap; }
.tool-weeks { list-style: none; margin: 12px 0 0; padding: 0; display: grid; gap: 7px; }
.tool-weeks a { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-size: .95rem; }
.tool-weeks a:hover .tool-week-focus { text-decoration: underline; }
.tool-week-focus { margin-right: auto; }

/* ---------- Pager ---------- */
.pager { display: flex; justify-content: space-between; gap: 14px; margin-top: 36px; }
.pager a {
  display: flex; flex-direction: column; text-decoration: none; color: var(--ink);
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-sm);
  padding: 12px 16px; box-shadow: var(--shadow-sm); max-width: 48%; font-weight: 600;
}
.pager a:hover { border-color: var(--primary); }
.pager a small { color: var(--muted); font-weight: 600; font-size: .74rem; text-transform: uppercase; letter-spacing: .05em; }
.pager-next { text-align: right; margin-left: auto; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--border); background: var(--surface); margin-top: 40px; }
.footer-inner { padding: 26px 0; }
.footer-inner p { margin: 0 0 6px; font-size: .9rem; }

/* ---------- Platform comparison (Apps & tools page) ---------- */
.platform-cards { list-style: none; margin: 20px 0 28px; padding: 0; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.platform-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-sm); padding: 18px 20px; box-shadow: var(--shadow-sm); display: flex; flex-direction: column; }
.platform-card h3 { margin: 0 0 2px; }
.platform-card p { font-size: .93rem; }
.platform-card-apps { color: var(--primary); font-weight: 600; font-size: .88rem !important; margin-bottom: 10px; }
.platform-caveat { border-left: 3px solid var(--accent-border); padding-left: 12px; }
.platform-card-actions { margin: auto 0 0; padding-top: 10px; }
/* (The card for the platform you are already reading in hides its own button —
   that rule is generated per platform in scripts/build.mjs.) */
html:not(.js) .platform-card-actions { display: none; }

.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 14px 0 10px; }
.platform-table { border-collapse: collapse; width: 100%; min-width: 520px; font-size: .92rem; background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-sm); }
.platform-table th, .platform-table td { text-align: left; padding: 9px 14px; border-bottom: 1px solid var(--border); }
.platform-table thead th { font-size: .78rem; text-transform: uppercase; letter-spacing: .05em; color: var(--muted); background: var(--surface-2); }
.platform-table tbody tr:last-child th, .platform-table tbody tr:last-child td { border-bottom: 0; }
.platform-table tbody th { font-weight: 600; }
.platform-table tbody th a { color: var(--ink); text-decoration: none; }
.platform-table tbody th a:hover { color: var(--primary); text-decoration: underline; }
.table-icon { font-size: .95em; }
.tool-grid-h { margin-top: 34px; }

.tool-note {
  margin: 0 0 4px; font-size: .87rem; color: var(--ink-soft);
  background: var(--accent-soft); border: 1px solid var(--accent-border);
  border-radius: 9px; padding: 9px 12px;
}

/* A skill folded into an existing lesson rather than given a week of its own. */
.also-covers {
  border-left: 3px solid var(--core);
  background: color-mix(in srgb, var(--core-soft) 45%, var(--surface));
}
.also-covers h2 { font-size: 1.02rem; margin-bottom: 6px; }
.also-covers p { margin-bottom: .5rem; }
.also-covers p:last-child { margin-bottom: 0; }

/* ---------- Practice mailbox ----------
   A simulated email client (assets/mailbox.js). The shell is inert without
   JavaScript, so it is hidden until the document is marked — the printable
   list of every message stands in for it. */
.mailbox { display: none; margin-top: 34px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--r); box-shadow: var(--shadow); overflow: hidden; }
html.js .mailbox { display: block; }
.mailbox-nojs { margin-top: 34px; padding: 18px 20px; background: var(--surface-2); border: 1px dashed var(--border-strong); border-radius: var(--r-sm); color: var(--ink-soft); }
html.js .mailbox-nojs { display: none; }

.mailbox-bar { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; padding: 14px 18px; border-bottom: 1px solid var(--border); background: var(--surface-2); }
.mailbox-brand { margin: 0; font-weight: 700; display: inline-flex; align-items: center; gap: 9px; }
.mailbox-mark { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 8px; background: var(--core); color: #fff; font-size: .95rem; }
.mailbox-year { margin: 0; font-size: .76rem; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--core); background: var(--core-soft); border: 1px solid color-mix(in srgb, var(--core) 28%, transparent); border-radius: 999px; padding: 3px 11px; }
.mailbox-who { margin: 0 auto 0 0; color: var(--muted); font-size: .88rem; }

.mailbox-body { display: grid; grid-template-columns: 168px minmax(220px, 1fr) minmax(0, 1.35fr); min-height: 460px; }
.mailbox-folders { display: flex; flex-direction: column; gap: 2px; padding: 12px; border-right: 1px solid var(--border); background: var(--surface-2); }
.mailbox-folder { display: flex; align-items: center; justify-content: space-between; gap: 8px; cursor: pointer; font: inherit; font-size: .92rem; font-weight: 550; text-align: left; padding: 9px 12px; border-radius: 9px; border: 1px solid transparent; background: transparent; color: var(--ink-soft); }
.mailbox-folder:hover { background: var(--surface); color: var(--ink); }
.mailbox-folder[aria-pressed="true"] { background: var(--primary-soft); border-color: color-mix(in srgb, var(--primary) 25%, transparent); color: var(--primary); font-weight: 650; }
.mailbox-count { font-size: .76rem; font-weight: 700; color: var(--muted); }
.mailbox-count.is-unread { background: var(--primary); color: var(--primary-ink); border-radius: 999px; padding: 1px 7px; }

.mailbox-list { border-right: 1px solid var(--border); max-height: 540px; overflow-y: auto; }
.mailbox-messages { list-style: none; margin: 0; padding: 0; }
.mailbox-item { display: grid; gap: 3px; width: 100%; text-align: left; cursor: pointer; font: inherit; background: transparent; border: 0; border-bottom: 1px solid var(--border); padding: 12px 16px; color: var(--ink); }
.mailbox-item:hover { background: var(--surface-2); }
.mailbox-item.is-open { background: var(--primary-soft); }
.mailbox-item-top { display: flex; justify-content: space-between; gap: 10px; align-items: baseline; }
.mailbox-item-who { font-size: .92rem; color: var(--ink-soft); }
.mailbox-item.is-unread .mailbox-item-who { font-weight: 700; color: var(--ink); }
.mailbox-item.is-unread .mailbox-item-subject { font-weight: 650; }
.mailbox-item-when { font-size: .76rem; color: var(--muted); white-space: nowrap; }
.mailbox-item-subject { font-size: .95rem; }
.mailbox-item-snippet { font-size: .82rem; color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mailbox-empty, .mailbox-placeholder { padding: 22px 18px; color: var(--muted); font-size: .92rem; }

.mailbox-pane { padding: 20px 22px; scroll-margin-top: 76px; }
.mailbox-pane:focus { outline: none; }
.mailbox-subject { margin: 0 0 8px; font-size: 1.2rem; }
.mailbox-meta { margin: 0 0 14px; font-size: .92rem; }
.mailbox-body-text p { margin: 0 0 .9rem; }
.mailbox-attachments { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 14px; }
.mailbox-attachment { cursor: pointer; font: inherit; font-size: .84rem; padding: 5px 11px; border-radius: 999px; background: var(--surface-2); border: 1px solid var(--border-strong); color: var(--ink-soft); }
.mailbox-attachment:hover { border-color: var(--primary); color: var(--primary); }
.mailbox-actions { display: flex; flex-wrap: wrap; gap: 8px; margin: 18px 0 0; }
.mailbox-status { margin: 0; padding: 12px 18px; border-top: 1px solid var(--border); background: var(--surface-2); color: var(--ink-soft); font-size: .88rem; min-height: 2.6em; }

.mailbox-field { margin-bottom: 14px; }
.mailbox-label { display: block; font-size: .8rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; margin-bottom: 5px; }
.mailbox-field input[type="text"], .mailbox-field textarea, .mailbox-field select,
.mailbox-control input[type="text"], .mailbox-control select {
  width: 100%; font: inherit; font-size: .95rem; padding: 9px 12px; border-radius: 9px;
  border: 1px solid var(--border-strong); background: var(--surface); color: var(--ink);
}
.mailbox-field textarea { resize: vertical; min-height: 8em; line-height: 1.5; }
.mailbox-recipients { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-bottom: 7px; min-height: 1.8em; }
.mailbox-chip { display: inline-flex; align-items: center; gap: 5px; font-size: .84rem; padding: 4px 6px 4px 11px; border-radius: 999px; background: var(--primary-soft); color: var(--primary); border: 1px solid color-mix(in srgb, var(--primary) 25%, transparent); }
.mailbox-chip button { cursor: pointer; font: inherit; line-height: 1; border: 0; background: transparent; color: inherit; padding: 0 4px; border-radius: 50%; }
.mailbox-chip button:hover { background: color-mix(in srgb, var(--primary) 18%, transparent); }

.mailbox-check-panel { background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--r-sm); padding: 12px 14px; }
.mailbox-checks { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.mailbox-checks li { font-size: .9rem; color: var(--muted); }
.mailbox-checks li.is-done { color: var(--core); font-weight: 550; }

.mailbox-controls { margin-top: 18px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-sm); padding: 4px 18px; }
.mailbox-controls > summary, .crib > summary { cursor: pointer; font-weight: 650; padding: 14px 0; }
.mailbox-controls-body { padding-bottom: 16px; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); align-items: start; }
.mailbox-control label { display: block; font-size: .86rem; font-weight: 600; margin-bottom: 5px; }
.mailbox-control p { margin: 6px 0 0; }

@media (max-width: 900px) {
  .mailbox-body { grid-template-columns: 1fr; min-height: 0; }
  .mailbox-folders { flex-direction: row; flex-wrap: wrap; border-right: 0; border-bottom: 1px solid var(--border); }
  .mailbox-list { border-right: 0; border-bottom: 1px solid var(--border); max-height: 340px; }
}

/* The printable crib: every seeded message, with the notes for staff. */
.crib { margin-top: 34px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-sm); padding: 4px 18px; }
.crib-body-wrap { padding-bottom: 18px; }
.crib-year { margin-top: 26px; }
.crib-year:first-child { margin-top: 6px; }
.crib-list { margin: 12px 0 0; padding-left: 1.2em; display: grid; gap: 16px; }
.crib-list > li { break-inside: avoid; border-left: 3px solid var(--border-strong); padding-left: 14px; }
.crib-head { margin: 0; display: flex; flex-wrap: wrap; gap: 8px; align-items: baseline; font-size: .9rem; }
.crib-subject { margin: 2px 0 6px; font-weight: 650; }
.crib-body { margin: 0 0 .5rem; font-size: .93rem; color: var(--ink-soft); }
.crib-note { margin: 8px 0 0; font-size: .87rem; background: var(--accent-soft); border: 1px solid var(--accent-border); border-radius: 8px; padding: 8px 11px; }


/* ---------- Print & export ----------
   Site chrome around the documents. The documents themselves are styled by
   assets/document.css, which is self-contained so it can be inlined into the
   file assets/export.js hands the teacher. Nothing here belongs in that file. */
.doc-bar {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px 16px;
  margin: 4px 0 18px; padding: 14px 18px;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-sm);
}
.doc-back { font-size: .9rem; font-weight: 600; text-decoration: none; color: var(--ink-soft); }
.doc-back:hover { color: var(--primary); }
.doc-actions { display: none; gap: 10px; flex-wrap: wrap; margin-left: auto; }
html.js .doc-actions { display: flex; }
.doc-bar-note { margin: 0; flex-basis: 100%; }
.doc-status { margin: -8px 0 18px; min-height: 1.4em; }

.doc-platform h2 { font-size: 1.1rem; }
.doc-platform-pick { display: flex; flex-wrap: wrap; gap: 8px; margin: 14px 0 10px; }
.doc-platform-pick .btn { font-size: .92rem; }
html:not(.js) .doc-platform-pick { display: none; }

.doc-list-h { margin: 34px 0 14px; }
.doc-cards { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.doc-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--r-sm); box-shadow: var(--shadow-sm); padding: 18px 20px; display: flex; flex-direction: column; }
.doc-card h3 { margin: 0 0 4px; font-size: 1.08rem; }
.doc-card h3 a { text-decoration: none; }
.doc-card-meta { margin: 0 0 10px; }
.doc-card p { margin: 0 0 .8rem; }
.doc-card-actions { margin: auto 0 0; padding-top: 6px; }

/* "Print or export this year" under a year page heading. */
.page-head-actions { margin: 16px 0 0; display: flex; flex-wrap: wrap; gap: 10px; }

/* ---------- Print ---------- */
@media print {
  :root { --shadow: none; --shadow-sm: none; }
  body { background: #fff; color: #000; font-size: 12pt; }
  .site-header, .site-footer, .nav-toggle, .toolbar, .pager, .skip-link, .lesson-search, .legend,
  .platform-card-actions, .mailbox-folders, .mailbox-status, .mailbox-actions, .mailbox-controls,
  .mailbox-nojs, .doc-bar, .doc-status, .page-doc .breadcrumb, .page-head-actions { display: none !important; }
  /* Printing the mailbox gives the open message and the message list, not the app chrome. */
  .mailbox-body { display: block; }
  .mailbox-list { max-height: none; overflow: visible; }
  .crib[open] .crib-body-wrap, .crib > summary { display: block; }
  .crib-list > li, .crib-year { break-inside: avoid; }
  .platform-cards { display: block; }
  .platform-table { min-width: 0; }
  .wrap { max-width: none; padding: 0; }
  main.wrap { padding: 0; }
  a { color: #000; text-decoration: none; }
  .panel, .week-card, .year-card, .thread-card, .callout, .strand-card, .tool-card, .hero {
    box-shadow: none; border: 1px solid #bbb; break-inside: avoid;
  }
  .week-card, .plan-step, .strand-card, .tool-card { break-inside: avoid; }
  .lesson-grid, .two-col, .strand-grid, .tool-grid, .year-grid, .thread-cards { display: block; }
  .lesson-col-side { position: static; }
  .lesson-grid > * , .strand-grid > *, .tool-grid > * { margin-bottom: 12px; }
  .callout-safety { background: #fff !important; }
  .week-card.is-safety { background: #fff !important; border-left: 3px solid #000; }
  .week-card.is-optional { border-left: 3px dashed #666; }
  .also-covers { background: #fff !important; border-left: 3px solid #666; }
  h1, h2, h3 { color: #000; }
}