/* ============================================================
   UK Home Education Resource Hub — editorial design system
   ============================================================ */

:root{
  --cream: #FAF6EE;
  --paper: #FFFFFF;
  --ink: #241F19;
  --ink-soft: #52493E;
  --ink-faint: #8A7E6E;
  --forest: #2E4A3B;
  --forest-dark: #1E3329;
  --forest-tint: #EAF0EA;
  --rust: #B45530;
  --rust-tint: #F7E9DF;
  --gold: #B8902E;
  --gold-tint: #F6EEDA;
  --line: #E4DCCB;
  --line-soft: #EFE9DA;
  --shadow: 0 1px 2px rgba(36,31,25,0.04), 0 6px 20px rgba(36,31,25,0.06);
  --shadow-lift: 0 4px 8px rgba(36,31,25,0.06), 0 16px 32px rgba(36,31,25,0.10);
  --radius: 10px;
  --radius-sm: 6px;
  --serif: 'Fraunces', Georgia, 'Times New Roman', serif;
  --sans: 'Source Sans 3', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color-scheme: light;
}

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

html{ scroll-behavior: smooth; }

body{
  margin:0;
  background: var(--cream);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16.5px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img{ max-width:100%; display:block; }

a{ color: var(--forest); text-decoration: none; }
a:hover{ text-decoration: underline; }

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

.skip-link{
  position:absolute; left:-999px; top:0; background:var(--forest); color:#fff;
  padding:10px 16px; z-index:200; border-radius: 0 0 6px 0;
}
.skip-link:focus{ left:0; }

h1,h2,h3,h4{
  font-family: var(--serif);
  font-weight: 600;
  color: var(--ink);
  line-height: 1.18;
  margin: 0 0 0.5em;
}
h1{ font-size: clamp(2rem, 1.5rem + 2vw, 3.1rem); font-weight: 600; }
h2{ font-size: clamp(1.5rem, 1.3rem + 1vw, 2.1rem); }
h3{ font-size: 1.25rem; }
p{ margin: 0 0 1em; color: var(--ink-soft); }

.eyebrow{
  font-family: var(--sans);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--rust);
  display:block;
  margin-bottom: 0.6em;
}

button{ font-family: var(--sans); cursor:pointer; }

/* ---------- Layout helpers ---------- */
.wrap{
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}
.section{ padding: 56px 0; }
.section-tight{ padding: 32px 0; }

/* ---------- Header ---------- */
.site-header{
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  position: sticky; top:0; z-index: 100;
}
.header-inner{
  max-width: 1240px;
  margin: 0 auto;
  padding: 14px 24px;
  display:flex;
  align-items:center;
  gap: 20px;
}
.brand{ display:flex; align-items:center; gap:12px; color:var(--ink); flex-shrink:0; }
.brand:hover{ text-decoration:none; }
.brand-mark{
  font-family: var(--serif);
  font-weight:700;
  background: var(--forest);
  color: var(--cream);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  padding: 7px 9px 6px;
  border-radius: 6px;
  line-height:1;
}
.brand-name{
  font-family: var(--serif);
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1.18;
  color: var(--ink);
}

.primary-nav{
  display:flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-left: 8px;
}
.primary-nav a{
  color: var(--ink-soft);
  font-weight:600;
  font-size: 0.92rem;
  padding: 8px 11px;
  border-radius: 6px;
  white-space: nowrap;
}
.primary-nav a:hover, .primary-nav a.active{
  color: var(--forest-dark);
  background: var(--forest-tint);
  text-decoration:none;
}

.header-search{
  margin-left:auto;
  display:flex;
  align-items:center;
  background: var(--cream);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 6px 5px 14px;
  flex-shrink: 0;
}
.header-search input{
  border:none; background:transparent; outline:none;
  font-family: var(--sans); font-size: 0.88rem; width: 160px; color: var(--ink);
}
.header-search button{
  background: var(--forest); color:#fff; border:none; border-radius:999px;
  width:30px; height:30px; display:flex; align-items:center; justify-content:center;
}

.nav-toggle{
  display:none;
  background:none; border: 1px solid var(--line); border-radius:8px;
  width:42px; height:38px;
  flex-direction:column; align-items:center; justify-content:center; gap:5px;
  flex-shrink:0;
}
.nav-toggle-bar{ width:20px; height:2px; background:var(--ink); border-radius:2px; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; gap:8px;
  font-weight:700; font-size:0.95rem;
  padding: 13px 24px;
  border-radius: 999px;
  border: 1.5px solid transparent;
  text-decoration: none !important;
  transition: transform .12s ease, box-shadow .12s ease;
}
.btn-primary{ background: var(--forest); color: #fff; }
.btn-primary:hover{ background: var(--forest-dark); box-shadow: var(--shadow-lift); transform: translateY(-1px); }
.btn-secondary{ background: transparent; color: var(--forest-dark); border-color: var(--forest); }
.btn-secondary:hover{ background: var(--forest-tint); }
.btn-ghost{ background: var(--paper); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover{ background: var(--line-soft); }
.btn-sm{ padding: 9px 16px; font-size: 0.85rem; }
.btn-block{ width:100%; justify-content:center; }
.btn[disabled], .btn.is-disabled{
  background: var(--line-soft); color: var(--ink-faint); border-color: var(--line);
  cursor: default; pointer-events: none;
}

/* ---------- Hero ---------- */
.hero{
  background: linear-gradient(180deg, var(--forest-tint) 0%, var(--cream) 100%);
  border-bottom: 1px solid var(--line);
}
.hero-inner{ padding: 64px 0 56px; text-align:center; max-width: 780px; margin:0 auto; }
.hero h1{ margin-bottom: 0.35em; }
.hero .lede{ font-size: 1.15rem; color: var(--ink-soft); max-width: 620px; margin: 0 auto 1.6em; }
.hero-actions{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; margin-bottom: 1.8em; }
.hero-note{
  display:inline-flex; align-items:center; gap:10px;
  background: var(--paper); border:1px solid var(--line); border-radius: 999px;
  padding: 10px 18px; font-size: 0.88rem; color: var(--ink-soft);
}
.hero-note strong{ color: var(--forest-dark); }

/* ---------- Principle strip ---------- */
.principles{
  display:grid; grid-template-columns: repeat(3, 1fr); gap:16px;
  margin-top: 40px;
}
.principle-card{
  background: var(--paper); border:1px solid var(--line); border-radius: var(--radius);
  padding: 20px 22px;
}
.principle-card .eyebrow{ margin-bottom:0.4em; }
.principle-card p{ margin:0; font-size:0.92rem; }

/* ---------- Generic content grid ---------- */
.grid-3{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2{ display:grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.grid-4{ display:grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }

/* ---------- Stage cards (home) ---------- */
.stage-card{
  background: var(--paper); border:1px solid var(--line); border-radius: var(--radius);
  padding: 26px 24px; display:flex; flex-direction:column; gap:10px; box-shadow: var(--shadow);
}
.stage-card h3{ margin-bottom:2px; }
.stage-card .stage-age{ color: var(--ink-faint); font-size:0.85rem; font-weight:600; }
.stage-card p{ font-size: 0.92rem; flex:1; }
.badge{
  display:inline-block; font-size: 0.7rem; font-weight:700; letter-spacing:0.06em;
  text-transform:uppercase; padding: 4px 10px; border-radius:999px;
}
.badge-live{ background: var(--forest-tint); color: var(--forest-dark); }
.badge-soon{ background: var(--gold-tint); color: #7A5E17; }

/* ---------- Section heading row ---------- */
.section-head{ display:flex; align-items:flex-end; justify-content:space-between; gap:20px; margin-bottom: 28px; flex-wrap:wrap; }
.section-head p{ margin:0; max-width: 520px; }

/* ---------- Breadcrumb ---------- */
.breadcrumb{ font-size: 0.85rem; color: var(--ink-faint); margin-bottom: 18px; }
.breadcrumb a{ color: var(--ink-faint); font-weight:600; }
.breadcrumb a:hover{ color: var(--forest); }
.breadcrumb .sep{ margin: 0 6px; }

/* ---------- Page header banner (stage/reception pages) ---------- */
.page-banner{
  background: var(--paper); border-bottom: 1px solid var(--line);
}
.page-banner-inner{ padding: 40px 0 36px; }
.page-banner .lede{ max-width: 680px; font-size: 1.05rem; }

/* ---------- Week grid ---------- */
.week-toc{ margin-top: 8px; }
.block-label{
  font-family: var(--serif); font-weight:600; font-size: 1.05rem; color: var(--forest-dark);
  margin: 36px 0 14px; padding-top: 8px; border-top: 1px solid var(--line-soft);
}
.block-label:first-child{ border-top:none; margin-top:0; }
.week-grid{ display:grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.week-tile{
  background: var(--paper); border:1px solid var(--line); border-radius: var(--radius-sm);
  padding: 16px 18px; display:flex; flex-direction:column; gap:4px;
}
.week-tile:hover{ border-color: var(--forest); text-decoration:none; box-shadow: var(--shadow); }
.week-tile .week-num{ font-size:0.72rem; font-weight:700; letter-spacing:0.08em; color: var(--rust); text-transform:uppercase; }
.week-tile .week-title{ font-family: var(--serif); font-weight:600; font-size:1.02rem; color: var(--ink); }
.week-tile .week-subjects{ font-size:0.78rem; color: var(--ink-faint); margin-top:4px; }

/* ---------- Sidebar layout (reception + week pages) ---------- */
.layout-with-side{ display:grid; grid-template-columns: 230px 1fr; gap: 40px; align-items:start; }
.side-nav{
  position: sticky; top: 90px;
  background: var(--paper); border:1px solid var(--line); border-radius: var(--radius);
  padding: 18px; display:flex; flex-direction:column; gap:2px;
}
.side-nav .side-title{ font-size:0.72rem; font-weight:700; letter-spacing:0.08em; text-transform:uppercase; color:var(--ink-faint); margin-bottom:8px; }
.side-nav a{ color: var(--ink-soft); font-size: 0.9rem; font-weight:600; padding: 7px 8px; border-radius:6px; }
.side-nav a:hover, .side-nav a.active{ background: var(--forest-tint); color:var(--forest-dark); text-decoration:none; }

/* ---------- Starter kit ---------- */
.kit-tier{ margin-bottom: 34px; }
.kit-tier-head{ display:flex; align-items:center; gap:12px; margin-bottom:14px; }
.kit-tier-head h3{ margin:0; }
.kit-list{ list-style:none; margin:0; padding:0; display:grid; grid-template-columns: repeat(2,1fr); gap: 10px 20px; }
.kit-list li{
  display:flex; align-items:flex-start; gap:10px; font-size:0.94rem; color: var(--ink-soft);
  padding: 10px 12px; background: var(--paper); border:1px solid var(--line-soft); border-radius: var(--radius-sm);
}
.kit-list li::before{ content:"✓"; color: var(--forest); font-weight:700; flex-shrink:0; }

/* ---------- Resource card ---------- */
.resource-card{
  background: var(--paper); border:1px solid var(--line); border-radius: var(--radius);
  padding: 22px; display:flex; flex-direction:column; gap:10px; box-shadow: var(--shadow);
}
.resource-card h4{ font-family: var(--serif); font-size:1.08rem; margin:0; color:var(--ink); }
.resource-meta-row{ display:flex; gap:8px; flex-wrap:wrap; }
.resource-field{ font-size: 0.88rem; }
.resource-field .label{ font-weight:700; color: var(--ink); display:block; margin-bottom:2px; font-size:0.78rem; text-transform:uppercase; letter-spacing:0.04em; color:var(--ink-faint); }
.resource-field p{ margin:0; color: var(--ink-soft); font-size:0.92rem; }
.free-alt{
  background: var(--forest-tint); border-radius: var(--radius-sm);
  padding: 10px 12px; font-size: 0.86rem; color: var(--forest-dark);
}
.free-alt strong{ color: var(--forest-dark); }
.resource-card-footer{ margin-top:auto; display:flex; align-items:center; justify-content:space-between; gap:10px; padding-top:6px; }

.priority-pill{ font-size:0.7rem; font-weight:700; letter-spacing:0.05em; text-transform:uppercase; padding:4px 10px; border-radius:999px; }
.priority-essential{ background: var(--forest-tint); color: var(--forest-dark); }
.priority-useful{ background: var(--gold-tint); color:#7A5E17; }
.priority-optional{ background: var(--rust-tint); color: var(--rust); }

.tag-paid{ font-size:0.72rem; font-weight:700; color: var(--rust); border:1px solid var(--rust-tint); background:var(--rust-tint); padding:2px 8px; border-radius:999px; }

/* ---------- Week detail page ---------- */
.week-hero{
  background: var(--paper); border:1px solid var(--line); border-radius: var(--radius);
  padding: 28px 30px; margin-bottom: 28px;
}
.week-hero .week-num-big{ font-size:0.8rem; font-weight:700; letter-spacing:0.1em; text-transform:uppercase; color: var(--rust); }
.week-hero h1{ margin: 4px 0 14px; }
.strand-list{ list-style:none; margin:0; padding:0; display:grid; gap:8px; }
.strand-list li{ font-size:0.94rem; color: var(--ink-soft); padding-left: 18px; position:relative; }
.strand-list li::before{ content:"—"; position:absolute; left:0; color: var(--forest); }
.strand-list li strong{ color: var(--ink); }

.week-block{ margin-bottom: 30px; }
.week-block h2{ font-size: 1.3rem; margin-bottom: 0.5em; }
.info-box{
  background: var(--paper); border:1px solid var(--line); border-radius: var(--radius);
  padding: 20px 22px;
}
.info-box.tint{ background: var(--forest-tint); border-color: transparent; }

.days-grid{ display:grid; grid-template-columns: repeat(5, 1fr); gap: 12px; }
.day-card{
  background: var(--paper); border:1px solid var(--line); border-radius: var(--radius-sm);
  padding: 14px 14px;
}
.day-card .day-label{ font-size:0.7rem; font-weight:700; text-transform:uppercase; letter-spacing:0.06em; color: var(--rust); }
.day-card h4{ font-size: 0.94rem; margin: 4px 0 6px; }
.day-card p{ font-size: 0.82rem; margin:0; color: var(--ink-soft); }

.subject-pill-row{ display:flex; flex-wrap:wrap; gap:8px; }
.subject-pill{
  font-size:0.8rem; font-weight:600; color: var(--forest-dark); background: var(--forest-tint);
  padding: 6px 13px; border-radius:999px;
}

.week-pager{ display:flex; justify-content:space-between; gap:12px; margin-top: 36px; }

/* ---------- Filter bar (subjects/search) ---------- */
.filter-bar{
  background: var(--paper); border:1px solid var(--line); border-radius: var(--radius);
  padding: 18px 20px; display:flex; gap: 18px; flex-wrap:wrap; margin-bottom: 28px; align-items:flex-end;
}
.filter-group{ display:flex; flex-direction:column; gap:6px; }
.filter-group label{ font-size:0.72rem; font-weight:700; text-transform:uppercase; letter-spacing:0.06em; color: var(--ink-faint); }
.filter-group select, .filter-group input{
  font-family: var(--sans); font-size:0.9rem; padding: 9px 12px; border-radius: 7px;
  border: 1px solid var(--line); background: var(--cream); color: var(--ink); min-width:160px;
}
.filter-results-count{ font-size:0.88rem; color: var(--ink-faint); margin-bottom:18px; }

/* ---------- About / static pages ---------- */
.prose{ max-width: 720px; }
.prose h2{ margin-top: 1.4em; }
.book-strip{ display:grid; grid-template-columns: repeat(2, 1fr); gap:20px; margin: 28px 0; }
.book-card{
  background: var(--paper); border:1px solid var(--line); border-radius: var(--radius);
  padding: 22px; display:flex; gap:16px; align-items:flex-start;
}
.book-cover-mark{
  flex-shrink:0; width:64px; height:88px; border-radius:4px;
  background: var(--forest); color:var(--cream); display:flex; align-items:center; justify-content:center;
  font-family: var(--serif); font-weight:700; font-size:1.1rem;
}
.book-card.soon .book-cover-mark{ background: var(--line); color: var(--ink-faint); }
.book-card h4{ margin: 0 0 4px; }
.book-card .book-by{ font-size:0.82rem; color: var(--ink-faint); margin-bottom:6px; }

/* ---------- Coming soon page ---------- */
.coming-soon-panel{
  background: var(--paper); border: 1.5px dashed var(--line); border-radius: var(--radius);
  padding: 48px 32px; text-align:center; max-width: 640px; margin: 0 auto;
}

/* ---------- Empty state ---------- */
.empty-state{ text-align:center; padding: 48px 20px; color: var(--ink-faint); }

/* ---------- Footer ---------- */
.site-footer{ background: var(--forest-dark); color: #DCE6DE; margin-top: 60px; }
.footer-inner{
  max-width: 1160px; margin:0 auto; padding: 48px 24px 28px;
  display:grid; grid-template-columns: 1.4fr 1fr 1fr 1.4fr; gap: 32px;
}
.footer-col h3{ font-family: var(--sans); font-size:0.78rem; font-weight:700; letter-spacing:0.07em; text-transform:uppercase; color: #A9BEAC; margin-bottom:12px; }
.footer-col a{ display:block; color: #DCE6DE; font-size:0.92rem; margin-bottom:8px; }
.footer-col a:hover{ color:#fff; }
.footer-col p{ color:#B9C9BB; font-size:0.87rem; }
.footer-brand .brand-mark{ background: var(--cream); color: var(--forest-dark); margin-bottom: 12px; }
.footer-disclosure .tag-paid{ background: rgba(255,255,255,0.1); border-color: transparent; color:#EFC9A9; }
.footer-bottom{ border-top:1px solid rgba(255,255,255,0.12); text-align:center; padding: 16px; font-size:0.8rem; color:#8FA391; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 980px){
  .layout-with-side{ grid-template-columns: 1fr; }
  .side-nav{ position:static; }
  .week-grid{ grid-template-columns: repeat(2, 1fr); }
  .grid-3{ grid-template-columns: repeat(2,1fr); }
  .grid-4{ grid-template-columns: repeat(2,1fr); }
  .principles{ grid-template-columns: 1fr; }
  .days-grid{ grid-template-columns: repeat(3, 1fr); }
  .footer-inner{ grid-template-columns: 1fr 1fr; }
  .book-strip{ grid-template-columns: 1fr; }
}

@media (max-width: 680px){
  body{ font-size: 15.5px; }
  .primary-nav{
    display:none;
    position:absolute; top: 100%; left:0; right:0;
    background: var(--paper); border-bottom:1px solid var(--line);
    flex-direction:column; padding: 10px 16px 16px; gap:2px;
    box-shadow: var(--shadow-lift);
  }
  .primary-nav.open{ display:flex; }
  .primary-nav a{ padding: 11px 10px; border-bottom: 1px solid var(--line-soft); border-radius:0; }
  .nav-toggle{ display:flex; }
  .header-search{ display:none; }
  .header-inner{ position:relative; flex-wrap:wrap; }
  .hero-inner{ padding: 40px 0 36px; }
  .hero-actions{ flex-direction:column; align-items:stretch; }
  .hero-actions .btn{ justify-content:center; }
  .week-grid{ grid-template-columns: 1fr; }
  .grid-3{ grid-template-columns: 1fr; }
  .grid-4{ grid-template-columns: 1fr; }
  .kit-list{ grid-template-columns: 1fr; }
  .days-grid{ grid-template-columns: 1fr; }
  .footer-inner{ grid-template-columns: 1fr; }
  .book-card{ flex-direction:column; }
  .section-head{ flex-direction:column; align-items:flex-start; }
  .filter-bar{ flex-direction:column; align-items:stretch; }
  .filter-group select, .filter-group input{ width:100%; min-width:0; }
  .week-pager{ flex-direction:column; }
}