/* ==========================================================================
   Morutabana — Design tokens
   Palette: chalkboard navy + exercise-book paper + tick-mark green
   Type: Bricolage Grotesque (display) / IBM Plex Sans (body) / Caveat (accent)
   ========================================================================== */

:root {
  --ink-navy: #14213D;
  --ink-navy-deep: #0D1629;
  --paper: #F8F6EF;
  --paper-line: #E4DFD0;
  --card: #FFFFFF;
  --tick-green: #2E7D46;
  --tick-green-dark: #1F5732;
  --marker-amber: #E8A33D;
  --marker-amber-dark: #C4841F;
  --red-pen: #C1443C;
  --text-ink: #1C1F26;
  --text-muted: #5B5F6B;
  --text-on-navy: #F2F0E8;
  --text-on-navy-muted: #A9B0C4;
  --radius: 10px;
  --max-width: 1120px;
  --font-display: "Bricolage Grotesque", "Arial Black", sans-serif;
  --font-body: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-accent: "Caveat", cursive;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text-ink);
  background: var(--paper);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.1;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 700; }
p { margin: 0 0 1em; color: var(--text-muted); }

.eyebrow {
  font-family: var(--font-body);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--tick-green);
}

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 3px solid var(--marker-amber);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* ---------------- Header / nav ---------------- */
.site-header {
  background: var(--ink-navy);
  color: var(--text-on-navy);
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.3rem;
  color: var(--text-on-navy);
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 6px;
}
.brand .tick { color: var(--tick-green); font-size: 1.1em; }
.brand small {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.6rem;
  color: var(--text-on-navy-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.main-nav { display: flex; gap: 28px; align-items: center; }
.main-nav a {
  text-decoration: none;
  color: var(--text-on-navy-muted);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.15s ease;
}
.main-nav a:hover, .main-nav a.active { color: var(--text-on-navy); }
.nav-cta {
  background: var(--marker-amber);
  color: var(--ink-navy-deep) !important;
  padding: 9px 18px;
  border-radius: var(--radius);
  font-weight: 700 !important;
}
.nav-cta:hover { background: #f0b355; }
.nav-toggle { display: none; }

@media (max-width: 760px) {
  .main-nav {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--ink-navy);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 24px 20px;
    gap: 14px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .main-nav.open { display: flex; }
  .nav-cta { text-align: center; }
  .nav-toggle {
    display: block;
    background: none;
    border: 1px solid rgba(255,255,255,0.25);
    color: var(--text-on-navy);
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 0.9rem;
  }
}

/* ---------------- Hero ---------------- */
.hero {
  background: var(--ink-navy);
  color: var(--text-on-navy);
  padding: 72px 0 92px;
  position: relative;
  overflow: hidden;
}
.hero .wrap { position: relative; z-index: 2; max-width: 760px; }
.hero p.lede { color: var(--text-on-navy-muted); font-size: 1.15rem; max-width: 560px; }
.hero-tick {
  position: absolute;
  right: -40px;
  top: -30px;
  width: 380px;
  opacity: 0.14;
  z-index: 1;
}
.cta-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.btn {
  display: inline-block;
  padding: 13px 24px;
  border-radius: var(--radius);
  font-weight: 700;
  text-decoration: none;
  font-size: 0.95rem;
  border: 2px solid transparent;
  cursor: pointer;
  font-family: var(--font-body);
}
.btn-primary { background: var(--marker-amber); color: var(--ink-navy-deep); }
.btn-primary:hover { background: #f0b355; }
.btn-ghost { border-color: rgba(255,255,255,0.3); color: var(--text-on-navy); }
.btn-ghost:hover { border-color: rgba(255,255,255,0.6); }
.btn-outline-dark { border-color: var(--ink-navy); color: var(--ink-navy); }
.btn-outline-dark:hover { background: var(--ink-navy); color: var(--text-on-navy); }

.chalk-note {
  font-family: var(--font-accent);
  color: var(--marker-amber);
  font-size: 1.5rem;
  display: inline-block;
  transform: rotate(-3deg);
}

/* ---------------- Ruled paper section ---------------- */
.ruled {
  background-image: repeating-linear-gradient(
    to bottom, transparent, transparent 38px, var(--paper-line) 39px
  );
  padding: 80px 0;
}
.section-head { max-width: 620px; margin-bottom: 44px; }

/* ---------------- Level "door" cards ---------------- */
.level-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
@media (max-width: 860px) { .level-grid { grid-template-columns: 1fr; } }

.level-card {
  background: var(--card);
  border: 1px solid var(--paper-line);
  border-top: 6px solid var(--tick-green);
  border-radius: var(--radius);
  padding: 28px 24px 24px;
  text-decoration: none;
  color: var(--text-ink);
  display: block;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.level-card:hover { transform: translateY(-3px); box-shadow: 0 10px 24px rgba(20,33,61,0.1); }
.level-card:nth-child(2) { border-top-color: var(--marker-amber); }
.level-card:nth-child(3) { border-top-color: var(--red-pen); }
.level-card .plaque {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.5rem;
  margin-bottom: 4px;
}
.level-card .plaque-sub { color: var(--text-muted); font-size: 0.88rem; margin-bottom: 14px; }
.level-card .count {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--tick-green-dark);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---------------- Subject grid ---------------- */
.subject-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 16px;
}
.subject-card {
  background: var(--card);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius);
  padding: 20px;
  text-decoration: none;
  color: var(--text-ink);
  position: relative;
}
.subject-card:hover { border-color: var(--tick-green); }
.subject-card .subj-title { font-weight: 700; font-size: 1.02rem; margin-bottom: 6px; }
.subject-card .subj-meta { font-size: 0.82rem; color: var(--text-muted); }
.badge {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 8px;
  border-radius: 20px;
  margin-top: 10px;
}
.badge-live { background: rgba(46,125,70,0.12); color: var(--tick-green-dark); }
.badge-soon { background: rgba(91,95,107,0.12); color: var(--text-muted); }

/* ---------------- Pricing ---------------- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: stretch;
}
@media (max-width: 860px) { .pricing-grid { grid-template-columns: 1fr; } }
.price-card {
  background: var(--card);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius);
  padding: 30px 26px;
  display: flex;
  flex-direction: column;
}
.price-card.featured {
  border: 2px solid var(--marker-amber);
  position: relative;
  transform: translateY(-8px);
}
.featured-tag {
  position: absolute;
  top: -13px;
  left: 24px;
  background: var(--marker-amber);
  color: var(--ink-navy-deep);
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: 20px;
}
.price-card .amount { font-family: var(--font-display); font-size: 2.4rem; font-weight: 800; margin: 6px 0 2px; }
.price-card .amount small { font-size: 0.9rem; font-weight: 500; color: var(--text-muted); }
.price-card ul { list-style: none; padding: 0; margin: 20px 0; flex: 1; }
.price-card li { padding: 7px 0; border-bottom: 1px dashed var(--paper-line); font-size: 0.9rem; }
.price-card li:last-child { border-bottom: none; }
.tick-li::before { content: "✓ "; color: var(--tick-green); font-weight: 700; }

/* ---------------- Footer ---------------- */
.site-footer {
  background: var(--ink-navy-deep);
  color: var(--text-on-navy-muted);
  padding: 48px 0 28px;
  font-size: 0.88rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  margin-bottom: 32px;
}
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-grid h4 {
  color: var(--text-on-navy);
  font-family: var(--font-body);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
}
.footer-grid a {
  display: block;
  text-decoration: none;
  color: var(--text-on-navy-muted);
  padding: 4px 0;
  font-size: 0.86rem;
}
.footer-grid a:hover { color: var(--text-on-navy); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}
.imprint-note { color: var(--text-on-navy-muted); }
.imprint-note strong { color: var(--text-on-navy); font-weight: 600; }

/* ---------------- Subject / workbook page ---------------- */
.workbook {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 40px;
  padding: 48px 0 90px;
  align-items: start;
}
@media (max-width: 860px) { .workbook { grid-template-columns: 1fr; } }
.toc {
  position: sticky;
  top: 90px;
  background: var(--card);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius);
  padding: 20px;
}
.toc h4 { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); margin-bottom: 12px; }
.toc ol { margin: 0; padding-left: 20px; }
.toc li { margin-bottom: 9px; font-size: 0.9rem; }
.toc a { text-decoration: none; color: var(--text-ink); }
.toc a:hover { color: var(--tick-green); }
.toc .locked { color: var(--text-muted); }
.toc .locked::after { content: " 🔒"; font-size: 0.75em; }

.content-block {
  background: var(--card);
  border: 1px solid var(--paper-line);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 20px;
}
.placeholder-note {
  border: 2px dashed var(--paper-line);
  border-radius: var(--radius);
  padding: 20px;
  color: var(--text-muted);
  font-size: 0.88rem;
  background: repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(20,33,61,0.02) 10px, rgba(20,33,61,0.02) 20px);
}
.placeholder-note code { background: var(--paper); padding: 2px 6px; border-radius: 4px; font-size: 0.85em; }

/* ---------------- Utility bands ---------------- */
.subhero {
  background: var(--ink-navy);
  color: var(--text-on-navy);
  padding: 46px 0;
}
.subhero p { color: var(--text-on-navy-muted); max-width: 560px; }
.crumbs { font-size: 0.82rem; color: var(--text-on-navy-muted); margin-bottom: 10px; }
.crumbs a { color: var(--text-on-navy-muted); text-decoration: none; }
.crumbs a:hover { color: var(--text-on-navy); }