:root {
  --bg: #fbf8ff;
  --card: #ffffff;
  --ink: #2b2350;
  --muted: #7b769a;
  --line: #ece7fb;
  --brand: #6c5ce7;
  --brand-2: #8b7bff;
  --brand-soft: #efeaff;
  --accent: #ff8a5b;
  --good: #25b673;
  --good-soft: #e3f7ec;
  --warn: #ef7d2e;
  --warn-soft: #fff1e3;
  --yellow: #ffce4d;
  --shadow: 0 2px 4px rgba(76, 61, 160, .06), 0 10px 28px rgba(76, 61, 160, .10);
  --shadow-sm: 0 2px 8px rgba(76, 61, 160, .10);
  --radius: 22px;
  --radius-sm: 14px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Nunito", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-weight: 600;
}
h1, h2, h3, .brand { font-family: "Fredoka", "Nunito", system-ui, sans-serif; font-weight: 600; letter-spacing: .2px; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap;
  padding: .7rem 1.2rem; background: var(--card);
  border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10;
}
.brand { font-size: 1.3rem; color: var(--brand); }
.mainnav { display: flex; gap: .3rem; flex-wrap: wrap; }
.mainnav a {
  padding: .4rem .85rem; border-radius: 999px; color: var(--muted); font-weight: 700; font-size: .92rem;
}
.mainnav a:hover { background: var(--brand-soft); color: var(--brand); text-decoration: none; }

.wrap { max-width: 840px; margin: 0 auto; padding: 1.6rem 1.2rem 4rem; }
.foot { text-align: center; color: var(--muted); padding: 2rem 1rem; font-size: .85rem; }

h1 { font-size: 2rem; margin: .2rem 0 .3rem; }
h2 { font-size: 1.4rem; margin: 1.7rem 0 .5rem; }
h3 { font-size: 1.15rem; margin: 1.2rem 0 .4rem; }
.sub { color: var(--muted); margin: 0 0 1.2rem; font-weight: 700; }
.crumb { color: var(--muted); font-size: .9rem; margin-bottom: .3rem; font-weight: 700; }

.card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.2rem 1.3rem; box-shadow: var(--shadow); margin: 1rem 0;
}
.grid { display: grid; gap: 1rem; }
@media (min-width: 620px) { .grid.two { grid-template-columns: 1fr 1fr; } }

.tile { display: block; transition: transform .12s ease, box-shadow .12s ease; border-width: 2px; }
.tile:hover { transform: translateY(-3px); box-shadow: 0 6px 10px rgba(76,61,160,.08), 0 16px 36px rgba(76,61,160,.14); text-decoration: none; }
.tile .eyebrow { font-size: .78rem; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; color: var(--brand); }
.tile h3 { margin: .2rem 0 .3rem; color: var(--ink); font-size: 1.35rem; }
.tile p { margin: 0; color: var(--muted); font-size: .95rem; }
.grid.two > .tile:nth-child(2n) { border-color: #ffe0cf; }
.grid.two > .tile:nth-child(2n) .eyebrow { color: var(--accent); }

.daylist { list-style: none; padding: 0; margin: .3rem 0 0; }
.daylist li {
  display: flex; align-items: center; gap: .8rem; padding: .75rem .2rem;
  border-bottom: 2px dashed var(--line);
}
.daylist li:last-child { border-bottom: 0; }
.daynum {
  flex: none; width: 2.3rem; height: 2.3rem; border-radius: 50%;
  display: grid; place-items: center; font-weight: 800; font-size: .95rem;
  background: var(--brand-soft); color: var(--brand); font-family: "Fredoka", sans-serif;
}
.daynum.done { background: var(--good-soft); color: var(--good); }
.daymeta { flex: 1; min-width: 0; }
.daymeta .t { font-weight: 800; }
.daymeta .m { color: var(--muted); font-size: .84rem; }
.pill { font-size: .72rem; font-weight: 800; padding: .25rem .6rem; border-radius: 999px; }
.pill.soon { background: var(--warn-soft); color: var(--warn); }
.pill.done { background: var(--good-soft); color: var(--good); }

.btn {
  display: inline-block; cursor: pointer; border: 0; font: inherit; font-weight: 800;
  padding: .6rem 1.15rem; border-radius: var(--radius-sm); background: var(--brand); color: #fff;
  box-shadow: var(--shadow-sm); transition: transform .1s ease, filter .1s ease;
  font-family: "Fredoka", "Nunito", sans-serif;
}
.btn:hover { filter: brightness(1.05); transform: translateY(-1px); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn.ghost { background: var(--brand-soft); color: var(--brand); box-shadow: none; }
.btn.good { background: var(--good); }
.btn.row { margin: .3rem .4rem .3rem 0; }
.btnbar { display: flex; flex-wrap: wrap; gap: .6rem; margin: 1.1rem 0; }

.lesson :is(h2, h3) { scroll-margin-top: 5rem; }
.lesson p, .lesson li { font-weight: 600; }
.lesson table { border-collapse: collapse; width: 100%; margin: .8rem 0; font-size: .95rem; }
.lesson th, .lesson td { border: 1px solid var(--line); padding: .5rem .65rem; text-align: left; }
.lesson th { background: var(--brand-soft); }
.lesson blockquote {
  margin: .9rem 0; padding: .6rem 1rem; border-left: 5px solid var(--accent);
  background: #fff5ef; border-radius: 0 12px 12px 0; color: #7a4a2e; font-weight: 700;
}
.lesson code { background: #efeaff; padding: .12rem .4rem; border-radius: 6px; font-size: .9em; }
.lesson pre { background: #2b2350; color: #ece7fb; padding: 1rem; border-radius: 14px; overflow: auto; }
.lesson pre code { background: none; color: inherit; }
.lesson hr { border: 0; border-top: 2px dashed var(--line); margin: 1.4rem 0; }

.video { position: relative; padding-bottom: 56.25%; height: 0; margin: 1rem 0; border-radius: 16px; overflow: hidden; box-shadow: var(--shadow-sm); }
.video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.videolink { display: flex; gap: .8rem; align-items: center; background: #fff6e3; border: 2px solid #ffe2a8;
  padding: .9rem 1.1rem; border-radius: 16px; margin: 1rem 0; font-weight: 700; }
.videolink:hover { text-decoration: none; filter: brightness(1.02); }
.videolink .play { font-size: 1.5rem; }

.flash {
  min-height: 200px; display: grid; place-items: center; text-align: center; cursor: pointer;
  font-size: 1.4rem; padding: 1.8rem; user-select: none; font-weight: 700;
  background: linear-gradient(135deg, #f3efff, #fff2ec);
  border: 2px solid var(--brand-soft);
}
.flash:hover { border-color: var(--brand-2); }
.flash .hint { color: var(--muted); font-size: .82rem; margin-top: 1rem; font-weight: 700; }
.counter { color: var(--brand); font-weight: 800; }

.quiz .q { margin: 1rem 0; }
.quiz input[type=text] { width: 100%; padding: .55rem .7rem; border: 2px solid var(--line); border-radius: 10px; font: inherit; font-weight: 600; }
.reveal { margin-top: .5rem; padding: .55rem .75rem; background: var(--good-soft); border-radius: 10px; color: #14532d; font-weight: 700; }

.check { display: flex; align-items: flex-start; gap: .6rem; padding: .4rem .35rem; }
.check input { margin-top: .3rem; transform: scale(1.25); accent-color: var(--brand); }
.quiz .check { border: 2px solid transparent; }

.glossary dt { font-weight: 800; margin-top: .9rem; color: var(--brand); font-family: "Fredoka", sans-serif; }
.glossary dd { margin: 0 0 .2rem; color: var(--muted); font-weight: 600; }

.journal-entry { display: flex; justify-content: space-between; gap: .8rem; align-items: flex-start; }
.journal-entry .when { color: var(--muted); font-size: .78rem; white-space: nowrap; font-weight: 700; }
textarea { width: 100%; padding: .7rem; border: 2px solid var(--line); border-radius: 12px; font: inherit; font-weight: 600; resize: vertical; }

.bar { height: 14px; background: var(--brand-soft); border-radius: 999px; overflow: hidden; margin: .5rem 0; }
.bar > span { display: block; height: 100%; background: linear-gradient(90deg, var(--good), #5fd99a); border-radius: 999px; }

@media print {
  .no-print { display: none !important; }
  body { background: #fff; font-weight: 500; }
  .wrap { max-width: none; padding: 0; }
  .card { box-shadow: none; border: 0; }
  .video { display: none; }
  a { color: inherit; text-decoration: none; }
}