/* ============================================================
   Code Sandbox — library.css
   ONLY the front door (index.html) loads this file.
   Workshops themselves need nothing but theme.css.

   Every color here comes from a token defined in theme.css.
   This file invents no new colors. If you are tempted to add
   one, you are designing a different school's website.
   ============================================================ */

/* 1. The lede — the paragraph that explains the place ------- */
.lib-lede {
  font-size: 1.02rem;
  color: var(--grey-dark);
  max-width: 68ch;
  margin: 18px 0 0;
}
.lib-lede strong { color: var(--ink); }

.lib-h2 {
  margin: 44px 0 0;
  font-size: 1.35rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -.01em;
}
.lib-h2 + .lib-lede { margin-top: 8px; }

/* 2a. Search — the fastest way into a growing shelf --------- */
.lib-find { margin-top: 18px; }
.lib-search {
  font: inherit;
  font-size: 1rem;
  width: 100%;
  max-width: 520px;
  padding: 12px 14px;
  color: var(--ink);
  background: #fff;
  border: 2px solid var(--ink);
}
.lib-search::placeholder { color: var(--grey); }
.lib-search:focus { outline: 3px solid var(--red); outline-offset: 2px; }

/* 2b. Filter chips — one per track, built from the catalog --- */
.lib-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}
.lib-chip {
  font: inherit;
  font-size: .76rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 7px 13px;
  color: var(--ink);
  background: #fff;
  border: 2px solid var(--ink);
}
.lib-chip:hover { background: var(--paper-dim); }
.lib-chip[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.lib-chip:focus-visible { outline: 3px solid var(--red); outline-offset: 2px; }

/* 3. The shelf — where the workshop cards live -------------- */
.shelf {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: var(--gap);
  margin-top: var(--gap);
}
.shelf-empty {
  grid-column: 1 / -1;
  padding: 24px;
  border-left: 5px solid var(--grey);
  background: var(--paper-dim);
  color: var(--grey-dark);
}

/* 4. One workshop ------------------------------------------- */
.wcard {
  display: flex;
  flex-direction: column;
  background: #fff;
  border: 1px solid var(--paper-dim);
  border-top: 4px solid var(--red);
  padding: 15px 18px 18px;
}
.wcard-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}
.wnum {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1.7rem;
  line-height: 1;
  color: var(--red);
  font-variant-numeric: tabular-nums;
}
.wcard h3 {
  margin: 12px 0 0;
  font-size: 1.26rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -.015em;
  line-height: 1.06;
}
.wmeta {
  margin: 5px 0 0;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--grey);
}
.whook {
  margin: 11px 0 0;
  font-size: .93rem;
  line-height: 1.5;
  color: var(--grey-dark);
}

/* What the student walks out knowing. Keep these to 5 or fewer
   — a list of nine is a syllabus, not a workshop. */
.wteaches {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 13px;
}
.wteaches span {
  font-family: var(--mono);
  font-size: .71rem;
  padding: 3px 7px;
  color: var(--grey-dark);
  background: var(--paper-dim);
}

/* margin-top:auto pins the links to the bottom so cards of
   different text lengths still line their buttons up. */
.wlinks {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
  padding-top: 16px;
}
.wlink {
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-decoration: none;
  padding: 9px 14px;
  color: var(--ink);
  background: #fff;
  border: 2px solid var(--ink);
}
.wlink:hover { background: var(--ink); color: var(--paper); }
.wlink.primary { color: var(--paper); background: var(--red); border-color: var(--red); }
.wlink.primary:hover { background: var(--red-deep); border-color: var(--red-deep); }

/* 5. Status chip — ready / draft / soon --------------------- */
.chip {
  font-family: var(--mono);
  font-size: .67rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  padding: 4px 8px;
  white-space: nowrap;
}
.wchips { display: flex; flex-wrap: wrap; gap: 5px; justify-content: flex-end; }

.chip.ready { background: var(--ink);       color: var(--paper); }
.chip.draft { background: var(--paper-dim); color: var(--grey-dark); }
.chip.soon  { background: #fff; color: var(--grey-dark); border: 1px dashed var(--grey); }

/* "You can do this one right now, in this browser, on a borrowed
   laptop." That is worth a red chip — and it is a link to the
   playground, so it gets hover and focus states to say so. */
.chip.needs{background:none;border:1px solid var(--grey-dark);color:var(--grey-dark)}
.chip.live {
  background: var(--red);
  color: var(--paper);
  text-decoration: none;
  cursor: pointer;
}
.chip.needs{background:none;border:1px solid var(--grey-dark);color:var(--grey-dark)}
.chip.live:hover { background: var(--red-deep); }
.chip.needs{background:none;border:1px solid var(--grey-dark);color:var(--grey-dark)}
.chip.live:focus-visible { outline: 3px solid var(--ink); outline-offset: 2px; }
.chip.needs{background:none;border:1px solid var(--grey-dark);color:var(--grey-dark)}
.chip.live::after { content: " ▸"; }

/* 6. The ghost card — "the next one goes here" -------------- */
.wcard.ghost {
  background: transparent;
  border: 2px dashed var(--grey);
  color: var(--grey-dark);
}
.wcard.ghost .wnum { color: var(--grey); }
.wcard.ghost h3    { color: var(--grey-dark); }

/* 7. The rail — I do / We do / You do ---------------------- */
.rail {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: var(--gap);
  margin-top: var(--gap);
}
.rail-step {
  background: var(--ink);
  color: var(--paper);
  padding: 16px 18px 18px;
  border-left: 5px solid var(--red);
}
.rail-step b {
  display: block;
  font-family: var(--mono);
  font-size: .72rem;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--red);
}
.rail-step h4 {
  margin: 8px 0 6px;
  font-size: 1.1rem;
  font-weight: 900;
  text-transform: uppercase;
}
.rail-step p { margin: 0; font-size: .89rem; color: var(--grey); line-height: 1.5; }

/* 8. Numbered how-to — adding the next workshop ------------- */
.howto { list-style: none; counter-reset: s; padding: 0; margin: var(--gap) 0 0; }
.howto li {
  counter-increment: s;
  position: relative;
  padding: 11px 0 11px 44px;
  border-bottom: 1px solid var(--paper-dim);
  font-size: .95rem;
}
.howto li:last-child { border-bottom: none; }
.howto li::before {
  content: counter(s);
  position: absolute;
  left: 0;
  top: 9px;
  width: 28px;
  text-align: center;
  font-family: var(--mono);
  font-weight: 700;
  color: var(--paper);
  background: var(--red);
  padding: 2px 0;
}

/* 9. The source tree lives in theme.css (section 12) — shared with
      every workshop index page, so it is not repeated here. */