/* =====================================================================
   KOTAK ALAT — Tangga Matematika · belajar.css
   ---------------------------------------------------------------------
   Gaya khusus modul belajar. DIPISAH dari shared.css supaya halaman
   alat lain tidak ikut membengkak, dan supaya modul ini bisa dipindah
   atau dimatikan tanpa menyentuh berkas lain.
   Memakai token warna dari shared.css (--card, --ink, --green, dst).
   ===================================================================== */

/* =========================================================
   0. UMUM
   ========================================================= */
.bj-sembunyi { display: none !important; }

.bj-btn {
  font: inherit; font-weight: 700; font-size: .86rem;
  padding: 10px 18px; border-radius: 999px; border: 1px solid var(--line-strong);
  background: var(--card); color: var(--ink); cursor: pointer;
  transition: transform .12s ease, box-shadow .18s ease, background .18s ease;
}
@media (hover: hover) { .bj-btn:hover:not(:disabled) { transform: translateY(-1px); box-shadow: var(--shadow-md); } }
.bj-btn:disabled { opacity: .42; cursor: not-allowed; }
.bj-btn.main { background: var(--green); border-color: var(--green); color: #fff; }
@media (hover: hover) { .bj-btn.main:hover:not(:disabled) { background: var(--green-deep); } }
.bj-btn.ghost { background: transparent; }
.bj-btn.besar { padding: 13px 26px; font-size: .95rem; }
.bj-btn.bahaya { color: var(--red); border-color: var(--red); background: transparent; }

.bj-back {
  background: none; border: 0; color: var(--muted); font: inherit; font-size: .84rem;
  font-weight: 600; cursor: pointer; padding: 6px 0; margin-bottom: 14px;
}
@media (hover: hover) { .bj-back:hover { color: var(--ink); } }

.bj-aksi { display: flex; gap: 10px; flex-wrap: wrap; }

/* =========================================================
   1. BAR PROFIL
   ========================================================= */
.bj-bar {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 12px 16px; margin-bottom: 22px; box-shadow: var(--shadow-soft);
}
.bj-ava {
  font-size: 1.7rem; line-height: 1; width: 48px; height: 48px; flex: none;
  border-radius: 50%; border: 1px solid var(--line-strong); background: var(--soft);
  cursor: pointer; display: grid; place-items: center;
}
@media (hover: hover) { .bj-ava:hover { background: var(--neutral-hover); } }
.bj-idn { flex: 1 1 190px; min-width: 0; }
.bj-idn .pk { font-weight: 800; font-size: .92rem; }
.bj-idn .lv { font-family: var(--ff-mono); font-size: .68rem; color: var(--muted); margin: 2px 0 5px; }
.bj-xp { height: 6px; background: var(--soft); border-radius: 999px; overflow: hidden; }
.bj-xp i { display: block; height: 100%; background: var(--green); border-radius: 999px; transition: width .4s ease; }
.bj-chips { display: flex; gap: 7px; flex-wrap: wrap; }
.bj-chip {
  font-family: var(--ff-mono); font-size: .72rem; font-weight: 600;
  padding: 5px 10px; border-radius: 999px; background: var(--soft); border: 1px solid var(--line);
}
.bj-chip.koin { background: var(--p-amber); color: var(--p-amber-ink); border-color: transparent; }
.bj-chip.api { background: var(--p-rose); color: var(--p-rose-ink); border-color: transparent; }
.bj-chip.btg { background: var(--p-green); color: var(--p-green-ink); border-color: transparent; }

/* =========================================================
   2. HERO & MISI
   ========================================================= */
.bj-hero {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-xl);
  padding: clamp(20px, 4vw, 34px); margin-bottom: 20px; box-shadow: var(--shadow-soft);
}
.bj-hero h1 { font-size: clamp(1.35rem, 4vw, 1.95rem); font-weight: 900; margin: 0 0 10px; letter-spacing: -.02em; }
.bj-hero p { margin: 0; color: var(--ink-soft); line-height: 1.7; font-size: .93rem; max-width: 62ch; }
.bj-facts { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 18px; }
.bj-fact {
  background: var(--soft); border: 1px solid var(--line); border-radius: var(--r);
  padding: 9px 14px; min-width: 92px;
}
.bj-fact b { display: block; font-size: 1.15rem; font-weight: 900; font-family: var(--ff-mono); }
.bj-fact span { font-size: .68rem; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }

.bj-panel {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 18px 20px; margin-bottom: 20px; box-shadow: var(--shadow-soft);
}
.bj-panel h2 { font-size: 1rem; font-weight: 850; margin: 0 0 4px; }
.bj-panel .sub { font-size: .82rem; color: var(--muted); margin-bottom: 14px; line-height: 1.6; }

.bj-misi-row { display: flex; align-items: center; gap: 12px; padding: 9px 0; border-top: 1px solid var(--line); }
.bj-misi-row:first-of-type { border-top: 0; }
.bj-misi-row .t { flex: 1; min-width: 0; }
.bj-misi-row .t b { font-size: .87rem; font-weight: 650; }
.bj-misi-row .n { font-family: var(--ff-mono); font-size: .68rem; color: var(--muted); }
.bj-mbar { height: 5px; background: var(--soft); border-radius: 999px; overflow: hidden; margin: 5px 0 3px; }
.bj-mbar i { display: block; height: 100%; background: var(--green); }
.bj-claim {
  font: inherit; font-size: .74rem; font-weight: 700; padding: 6px 13px; border-radius: 999px;
  border: 1px solid var(--line-strong); background: var(--card); color: var(--muted); cursor: not-allowed; flex: none;
}
.bj-claim.siap { background: var(--green); border-color: var(--green); color: #fff; cursor: pointer; }
.bj-claim.sudah { background: var(--soft); color: var(--muted); }

/* =========================================================
   3. PETA TANGGA
   ========================================================= */
.bj-tangga-list { display: flex; flex-direction: column; gap: 12px; }

.bj-tk {
  display: flex; align-items: center; gap: 14px; width: 100%; text-align: left;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: 14px 16px; cursor: pointer; font: inherit; color: inherit;
  transition: transform .14s ease, box-shadow .2s ease, border-color .2s ease;
  position: relative;
}
@media (hover: hover) { .bj-tk:hover:not(.kunci) { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: var(--line-strong); } }
.bj-tk.kunci { cursor: not-allowed; background: var(--card-2); border-style: dashed; }
.bj-tk.kunci .jd, .bj-tk.kunci .ds { color: var(--muted); }
.bj-tk.kunci .ic { filter: grayscale(1); opacity: .5; }
.bj-tk.kunci .no { opacity: .55; }
.bj-tk.kunci .bar, .bj-tk.kunci .rg { display: none; }
.bj-tk.lulus { border-color: var(--green); }
.bj-tk .no {
  flex: none; width: 44px; height: 44px; border-radius: 12px; display: grid; place-items: center;
  font-family: var(--ff-mono); font-weight: 800; font-size: .78rem; background: var(--soft); color: var(--muted);
}
.bj-tk .ic { flex: none; font-size: 1.5rem; width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; }
/* Kartu tingkat adalah <button>, jadi anak-anaknya berupa <span>.
   Tanpa display:block, semuanya mengalir menjadi satu baris dan bilah
   progresnya hilang sama sekali. */
.bj-tk .isi { flex: 1; min-width: 0; display: block; }
.bj-tk .jd { display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
  font-weight: 800; font-size: .97rem; line-height: 1.3; }
.bj-tk .rg {
  display: inline-block; margin-top: 5px; padding: 2px 8px; border-radius: 999px;
  background: var(--soft); font-family: var(--ff-mono); font-size: .64rem;
  font-weight: 600; color: var(--muted); letter-spacing: .01em;
}
.bj-tk .ds { display: block; margin-top: 7px; font-size: .82rem; color: var(--ink-soft); line-height: 1.55; }
.bj-tk .bar { display: block; height: 5px; background: var(--soft); border-radius: 999px; overflow: hidden; margin-top: 10px; }
.bj-tk .bar i { display: block; height: 100%; background: var(--green); transition: width .4s ease; }
.bj-tk .meta { display: block; margin-top: 7px; font-family: var(--ff-mono); font-size: .67rem; color: var(--muted); }

.w-green { background: var(--p-green); color: var(--p-green-ink); }
.w-blue { background: var(--p-blue); color: var(--p-blue-ink); }
.w-purple { background: var(--p-purple); color: var(--p-purple-ink); }
.w-amber { background: var(--p-amber); color: var(--p-amber-ink); }
.w-rose { background: var(--p-rose); color: var(--p-rose-ink); }
.w-teal { background: var(--p-teal); color: var(--p-teal-ink); }

.bj-tag {
  font-family: var(--ff-mono); font-size: .6rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: .06em; padding: 3px 8px; border-radius: 999px;
  background: var(--soft); color: var(--muted); border: 1px solid var(--line);
}
.bj-tag.ujian { background: var(--p-amber); color: var(--p-amber-ink); border-color: transparent; }
.bj-tag.boss { background: var(--p-rose); color: var(--p-rose-ink); border-color: transparent; }
.bj-tag.kunci { background: transparent; color: var(--muted); border-color: var(--line-strong); font-weight: 600; }

/* =========================================================
   4. DAFTAR LANGKAH
   ========================================================= */
.bj-head {
  display: flex; align-items: center; gap: 14px; margin-bottom: 18px;
  padding-bottom: 16px; border-bottom: 1px solid var(--line);
}
.bj-head .ic { font-size: 1.9rem; width: 56px; height: 56px; border-radius: 14px; display: grid; place-items: center; flex: none; }
.bj-head h1 { margin: 0; font-size: 1.3rem; font-weight: 900; }
.bj-head p { margin: 3px 0 0; font-size: .85rem; color: var(--muted); }

.bj-lk {
  display: flex; align-items: flex-start; gap: 13px;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r);
  padding: 13px 15px; margin-bottom: 9px;
}
.bj-lk.kunci { opacity: .5; }
.bj-lk.lulus { border-color: var(--green); }
.bj-lk.ujian { background: var(--card-2); border-style: dashed; }
.bj-lk .no {
  flex: none; width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center;
  font-family: var(--ff-mono); font-weight: 800; font-size: .76rem; background: var(--soft); color: var(--muted);
}
.bj-lk.lulus .no { background: var(--green); color: #fff; }
.bj-lk .isi { flex: 1; min-width: 0; }
.bj-lk .jd { font-weight: 750; font-size: .9rem; display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.bj-lk .tj { font-size: .8rem; color: var(--ink-soft); margin-top: 3px; line-height: 1.5; }
.bj-lk .meta { font-family: var(--ff-mono); font-size: .66rem; color: var(--muted); margin-top: 5px; }
.bj-lk .aksi { display: flex; gap: 7px; flex: none; flex-wrap: wrap; }
.bj-lk .aksi .bj-btn { padding: 7px 13px; font-size: .76rem; }
.bj-stars { letter-spacing: 1px; font-size: .78rem; margin-top: 5px; }

/* --- tablet & layar sedang --- */
@media (max-width: 900px) {
  .bj-opsi { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
}

/* --- ponsel besar & tablet potret --- */
@media (max-width: 640px) {
  .bj-lk { flex-wrap: wrap; }
  .bj-lk .aksi { width: 100%; margin-top: 8px; }
  .bj-lk .aksi .bj-btn { flex: 1; }
  .bj-opsi { grid-template-columns: 1fr; }
  .bj-hero h1 { font-size: 1.4rem; }
  .bj-facts { gap: 7px; }
  .bj-fact { flex: 1 1 calc(50% - 4px); min-width: 0; padding: 8px 11px; }
  .bj-skorgrid > div { flex: 1 1 calc(33.333% - 7px); min-width: 0; padding: 9px 6px; }
  .bj-tk { gap: 10px; padding: 12px 13px; }
  .bj-tk .no { display: none; }
  .bj-hasil .bintang { font-size: 2.1rem; }
  .bj-aksi .bj-btn { flex: 1 1 100%; }
  .bj-materi .kb-rumus { font-size: .84rem; padding: 11px 12px; }
}

/* --- ponsel kecil (320–380px) --- */
@media (max-width: 380px) {
  .bj-bar { gap: 10px; padding: 10px 12px; }
  .bj-ava { width: 42px; height: 42px; font-size: 1.45rem; }
  .bj-chip { font-size: .66rem; padding: 4px 8px; }
  .kb-frame span { width: 20px; height: 20px; }
  .kb-emo i { font-size: 1.35rem; }
  .bj-op { padding: 13px 14px; font-size: .9rem; }
}

/* --- ponsel telentang: ruang tegak sempit, rapatkan --- */
@media (max-height: 480px) and (orientation: landscape) {
  .bj-main { padding: 14px 16px; }
  .bj-timer { margin-bottom: 12px; }
  .bj-soal { margin-bottom: 12px; font-size: .95rem; }
  .kb-big { font-size: 1.3rem; margin: 8px 0 4px; }
  .bj-power { margin-top: 10px; padding-top: 10px; }
}

/* --- layar sangat lebar: jangan biarkan baris teks jadi terlalu panjang --- */
@media (min-width: 1100px) {
  .bj-materi { max-width: 78ch; margin: 0 auto; }
  .bj-opsi { grid-template-columns: repeat(2, 1fr); }
}

/* =========================================================
   11. SENTUH: perbesar target agar nyaman ditekan jari
   ---------------------------------------------------------
   Pedoman WCAG minimal 44×44px. Hanya berlaku pada perangkat
   yang penunjuknya kasar (jari), supaya tampilan mouse tetap padat.
   ========================================================= */
@media (pointer: coarse) {
  .bj-btn { padding: 13px 20px; min-height: 44px; }
  .bj-lk .aksi .bj-btn { padding: 12px 14px; min-height: 44px; font-size: .82rem; }
  .bj-pw { padding: 11px 14px; min-height: 44px; font-size: .76rem; }
  .bj-claim { padding: 11px 16px; min-height: 44px; }
  .bj-tab button { padding: 12px 18px; min-height: 44px; }
  .bj-back { padding: 12px 4px; min-height: 44px; }
  .bj-avitem { min-height: 60px; }
  .bj-op { min-height: 52px; }
  .bj-isian input { min-height: 48px; }
}

/* --- baris tombol lanjut menempel di bawah layar saat bermain di HP --- */
@media (max-width: 640px) {
  .bj-lanjut-tempel {
    position: sticky; bottom: 0; z-index: 5;
    background: linear-gradient(to top, var(--card) 62%, transparent);
    padding: 14px 0 8px; margin-top: 12px;
  }
  .bj-lanjut-tempel .bj-btn { width: 100%; }
}

/* =========================================================
   12. FOKUS PAPAN KETIK
   ========================================================= */
.bj-btn:focus-visible, .bj-op:focus-visible, .bj-pw:focus-visible,
.bj-tk:focus-visible, .bj-tab button:focus-visible, .bj-avitem:focus-visible,
.bj-ava:focus-visible, .bj-claim:focus-visible, .bj-back:focus-visible {
  outline: 2px solid var(--green); outline-offset: 2px; border-radius: var(--r-xs);
}
.bj-op kbd {
  display: inline-block; min-width: 18px; margin-right: 9px; padding: 1px 5px;
  border: 1px solid var(--line-strong); border-radius: 5px; background: var(--soft);
  font-family: var(--ff-mono); font-size: .72em; font-weight: 700; color: var(--muted);
}
@media (pointer: coarse) { .bj-op kbd { display: none; } }

/* =========================================================
   5. MATERI
   ========================================================= */
.bj-materi {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: clamp(20px, 4vw, 34px); box-shadow: var(--shadow-soft);
}
.bj-materi .nomor {
  font-family: var(--ff-mono); font-size: .66rem; text-transform: uppercase;
  letter-spacing: .08em; color: var(--muted); margin-bottom: 8px;
}
.bj-materi h2 { margin: 0 0 12px; font-size: 1.35rem; font-weight: 900; letter-spacing: -.01em; }
.bj-materi .tujuan {
  background: var(--green-wash); border-left: 3px solid var(--green);
  padding: 11px 15px; border-radius: 0 var(--r-sm) var(--r-sm) 0;
  font-size: .86rem; margin-bottom: 20px; line-height: 1.6;
}
.bj-materi p { line-height: 1.78; font-size: .94rem; margin: 0 0 14px; }
.bj-materi ul, .bj-materi ol { line-height: 1.78; font-size: .94rem; padding-left: 22px; margin: 0 0 14px; }
.bj-materi li { margin-bottom: 6px; }
.bj-materi b { font-weight: 750; }

.kb-contoh {
  background: var(--soft); border: 1px solid var(--line); border-radius: var(--r);
  padding: 14px 16px; margin: 0 0 15px; font-size: .9rem; line-height: 1.75;
}
.kb-contoh > p:last-child { margin-bottom: 0; }
.kb-rumus {
  background: var(--card-2); border: 1px dashed var(--line-strong); border-radius: var(--r);
  padding: 13px 16px; margin: 0 0 15px; text-align: center;
  font-family: var(--ff-mono); font-size: .92rem; font-weight: 600; line-height: 1.9;
}
.kb-tabelmini {
  background: var(--soft); border-radius: var(--r-sm); padding: 11px 14px; margin: 0 0 15px;
  font-size: .85rem; line-height: 1.85;
}
.kb-tangga {
  text-align: center; font-family: var(--ff-mono); font-weight: 700; font-size: .9rem;
  background: var(--p-blue); color: var(--p-blue-ink); border-radius: var(--r-sm);
  padding: 12px; margin: 0 0 13px; letter-spacing: .02em;
}
.kb-warn {
  background: var(--amber-wash); border-left: 3px solid var(--amber);
  padding: 11px 15px; border-radius: 0 var(--r-sm) var(--r-sm) 0;
  font-size: .88rem !important; line-height: 1.7 !important;
}
.kb-pre {
  font-family: var(--ff-mono); font-size: .88rem; line-height: 1.55; margin: 8px 0;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-sm);
  padding: 11px 14px; overflow-x: auto; white-space: pre;
}

/* =========================================================
   6. KOMPONEN VISUAL SOAL
   ========================================================= */
.kb-big {
  font-family: var(--ff-mono); font-size: clamp(1.3rem, 5vw, 1.9rem); font-weight: 800;
  text-align: center; margin: 14px 0 6px; letter-spacing: .01em; line-height: 1.5;
}
.kb-num { font-family: var(--ff-mono); font-weight: 800; }
.kb-op { font-family: var(--ff-mono); font-size: 1.3rem; font-weight: 800; margin: 0 8px; }
.kb-vis { display: flex; justify-content: center; margin: 14px 0; }

.kb-emo { display: flex; flex-wrap: wrap; gap: 5px; justify-content: center; margin: 14px 0; }
.kb-emo i { font-style: normal; font-size: 1.6rem; line-height: 1.1; }
.kb-emo b { font-family: var(--ff-mono); font-size: .95rem; align-self: center; color: var(--muted); }

.kb-frames { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin: 14px 0; }
.kb-frame {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 3px;
  background: var(--line); padding: 3px; border-radius: 6px;
}
.kb-frame span { width: 24px; height: 24px; background: var(--card); border-radius: 4px; }
.kb-frame span.on { background: var(--green); }

.kb-balok { display: flex; align-items: flex-end; gap: 4px; flex-wrap: wrap; justify-content: center; margin: 12px 0; }
.kb-balok b { display: block; background: var(--blue); border-radius: 2px; }
.kb-balok .kb-b100 { width: 30px; height: 30px; background: var(--purple); }
.kb-balok .kb-b10 { width: 7px; height: 30px; }
.kb-balok .kb-b1 { width: 7px; height: 7px; background: var(--amber); }

.kb-line { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; align-items: center; margin: 14px 0; }
.kb-node {
  font-family: var(--ff-mono); font-size: .84rem; font-weight: 700;
  min-width: 40px; text-align: center; padding: 7px 9px;
  background: var(--soft); border: 1px solid var(--line); border-radius: var(--r-xs);
}
.kb-node.q { background: var(--amber-wash); border-color: var(--amber); border-style: dashed; color: var(--amber); }
.kb-node.mark { background: var(--green); color: #fff; border-color: var(--green); }
.kb-arrow { color: var(--muted); font-size: .9rem; }

.kb-frac { display: inline-flex; flex-direction: column; vertical-align: middle; margin: 0 3px; font-family: var(--ff-mono); font-weight: 700; }
.kb-frac i { font-style: normal; font-size: .84em; line-height: 1.15; text-align: center; padding: 0 4px; }
.kb-frac i:first-child { border-bottom: 1.6px solid currentColor; }

.kb-pita { display: flex; gap: 2px; margin: 14px auto; max-width: 300px; }
.kb-pita span { flex: 1; height: 34px; background: var(--soft); border: 1px solid var(--line); border-radius: 3px; }
.kb-pita span.on { background: var(--green); border-color: var(--green); }

.kb-pie .kb-fill { fill: var(--green); stroke: var(--card); stroke-width: 1.5; }
.kb-pie .kb-empty { fill: var(--soft); stroke: var(--line-strong); stroke-width: 1.5; }

.kb-kisi { display: grid; gap: 2px; margin: 14px auto; max-width: 260px; }
.kb-kisi span { aspect-ratio: 1; background: var(--soft); border: 1px solid var(--line); border-radius: 2px; }
.kb-kisi span.on { background: var(--p-green); border-color: var(--green); }

.kb-jam { display: block; margin: 6px auto; color: var(--ink); }

.kb-kelompok { display: flex; flex-direction: column; gap: 7px; margin: 14px 0; }
.kb-kelompok > div {
  background: var(--soft); border: 1px solid var(--line); border-radius: var(--r-sm); padding: 5px;
}
.kb-kelompok .kb-emo { margin: 0; }
.kb-kelompok .kb-emo i { font-size: 1.25rem; }

.kb-tabel { width: 100%; min-width: 260px; border-collapse: collapse; margin: 14px 0; font-size: .87rem; }
.kb-tabelbungkus { overflow-x: auto; -webkit-overflow-scrolling: touch; margin: 14px 0; }
.kb-tabelbungkus .kb-tabel { margin: 0; }
.kb-tabel th, .kb-tabel td { border: 1px solid var(--line); padding: 7px 11px; text-align: left; }
.kb-tabel th { background: var(--soft); font-weight: 750; font-size: .78rem; }
.kb-tabel td { font-family: var(--ff-mono); }

.kb-susun { font-family: var(--ff-mono); text-align: right; display: inline-block; margin: 12px auto; }
.kb-susun span { display: block; font-size: 1.15rem; font-weight: 700; }
.kb-susun .line { border-top: 2px solid var(--ink); height: 4px; }

/* =========================================================
   7. LAYAR BERMAIN
   ========================================================= */
.bj-main {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: clamp(18px, 3.5vw, 28px); box-shadow: var(--shadow-soft);
}
.bj-mtop { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 12px; }
.bj-prog { font-family: var(--ff-mono); font-size: .72rem; color: var(--muted); font-weight: 600; }
.bj-nyawa { font-size: .95rem; letter-spacing: 2px; }
.bj-combo {
  font-family: var(--ff-mono); font-size: .72rem; font-weight: 700;
  background: var(--p-rose); color: var(--p-rose-ink); padding: 4px 10px; border-radius: 999px;
}
.bj-timer { height: 5px; background: var(--soft); border-radius: 999px; overflow: hidden; margin-bottom: 18px; }
.bj-timer i { display: block; height: 100%; background: var(--green); transition: width 1s linear; }
.bj-timer.kritis i { background: var(--red); }

.bj-soal { font-size: 1.02rem; line-height: 1.7; margin-bottom: 18px; overflow-x: auto; overflow-y: hidden; }
.bj-soal, .bj-materi, .bj-rv { overflow-wrap: anywhere; }
.bj-soal ul { padding-left: 22px; line-height: 1.75; }

.bj-opsi { display: grid; gap: 9px; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); }
.bj-op {
  font: inherit; font-size: .95rem; font-weight: 650; text-align: left;
  padding: 14px 17px; border-radius: var(--r); border: 1.5px solid var(--line-strong);
  background: var(--card); color: var(--ink); cursor: pointer;
  transition: transform .1s ease, border-color .15s ease, background .15s ease;
}
@media (hover: hover) { .bj-op:hover:not(:disabled) { border-color: var(--green); transform: translateY(-1px); } }
.bj-op:disabled { cursor: default; }
.bj-op.benar { background: var(--green-wash); border-color: var(--green); }
.bj-op.salah { background: var(--red-wash); border-color: var(--red); }
.bj-op.mati { opacity: .3; }

.bj-isian { display: flex; gap: 9px; flex-wrap: wrap; }
.bj-isian input {
  flex: 1 1 200px; font: inherit; font-family: var(--ff-mono); font-size: 1rem;
  padding: 13px 15px; border-radius: var(--r); border: 1.5px solid var(--input-bd); background: var(--card); color: var(--ink);
}
.bj-isian input:focus { outline: none; border-color: var(--green); box-shadow: var(--focus); }

.bj-power { display: flex; gap: 7px; flex-wrap: wrap; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); }
.bj-pw {
  font: inherit; font-size: .72rem; font-weight: 650; padding: 7px 12px; border-radius: 999px;
  border: 1px solid var(--line-strong); background: var(--card); color: var(--ink-soft); cursor: pointer;
}
@media (hover: hover) { .bj-pw:hover:not(:disabled) { background: var(--soft); } }
.bj-pw:disabled { opacity: .4; cursor: not-allowed; }

.bj-umpan { margin-top: 16px; padding: 14px 16px; border-radius: var(--r); font-size: .89rem; line-height: 1.7; }
.bj-umpan.ok { background: var(--green-wash); border-left: 3px solid var(--green); }
.bj-umpan.no { background: var(--red-wash); border-left: 3px solid var(--red); }
.bj-umpan .jd { font-weight: 800; margin-bottom: 5px; }
.bj-petunjuk { background: var(--amber-wash); border-left: 3px solid var(--amber); padding: 11px 15px; border-radius: 0 var(--r-sm) var(--r-sm) 0; margin-top: 13px; font-size: .86rem; }

/* =========================================================
   8. HASIL
   ========================================================= */
.bj-hasil {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--r-lg);
  padding: clamp(22px, 4vw, 36px); text-align: center; box-shadow: var(--shadow-soft);
}
.bj-hasil .bintang { font-size: 2.6rem; letter-spacing: 6px; margin-bottom: 10px; }
.bj-hasil h2 { margin: 0 0 8px; font-size: 1.5rem; font-weight: 900; }
.bj-hasil .sub { color: var(--muted); font-size: .89rem; margin-bottom: 22px; line-height: 1.65; }
.bj-skorgrid { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin-bottom: 22px; }
.bj-skorgrid > div { background: var(--soft); border-radius: var(--r); padding: 11px 16px; min-width: 88px; }
.bj-skorgrid b { display: block; font-family: var(--ff-mono); font-size: 1.15rem; font-weight: 900; }
.bj-skorgrid span { font-size: .66rem; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }

.bj-lencana-baru { display: flex; gap: 9px; flex-wrap: wrap; justify-content: center; margin-bottom: 20px; }
.bj-lb { background: var(--p-amber); color: var(--p-amber-ink); border-radius: var(--r); padding: 9px 14px; font-size: .8rem; font-weight: 700; }

.bj-review { margin-top: 26px; text-align: left; }
.bj-review h3 { font-size: .95rem; font-weight: 850; margin: 0 0 12px; }
.bj-rv { border: 1px solid var(--line); border-radius: var(--r); padding: 12px 15px; margin-bottom: 8px; font-size: .87rem; line-height: 1.65; }
.bj-rv.benar { border-left: 3px solid var(--green); }
.bj-rv.salah { border-left: 3px solid var(--red); }
.bj-rv .no { font-family: var(--ff-mono); font-size: .68rem; color: var(--muted); font-weight: 700; }
.bj-rv .bahas { margin-top: 7px; padding-top: 7px; border-top: 1px dashed var(--line); color: var(--ink-soft); }

/* =========================================================
   9. PROFIL & TOKO
   ========================================================= */
.bj-tab { display: flex; gap: 7px; margin-bottom: 18px; flex-wrap: wrap; }
.bj-tab button {
  font: inherit; font-size: .8rem; font-weight: 700; padding: 8px 16px; border-radius: 999px;
  border: 1px solid var(--line-strong); background: var(--card); color: var(--ink-soft); cursor: pointer;
}
.bj-tab button.aktif { background: var(--ink); border-color: var(--ink); color: var(--bg); }

.bj-grid-kecil { display: grid; gap: 10px; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); }
.bj-lc { background: var(--card); border: 1px solid var(--line); border-radius: var(--r); padding: 13px; text-align: center; }
.bj-lc.mati { opacity: .35; }
.bj-lc .ic { font-size: 1.7rem; }
.bj-lc .nm { font-weight: 750; font-size: .82rem; margin-top: 5px; }
.bj-lc .ds { font-size: .7rem; color: var(--muted); margin-top: 3px; line-height: 1.45; }

.bj-av { display: flex; gap: 9px; flex-wrap: wrap; }
.bj-avitem {
  width: 62px; text-align: center; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--r); padding: 9px 4px; cursor: pointer; font: inherit;
}
.bj-avitem.aktif { border-color: var(--green); background: var(--green-wash); }
.bj-avitem.terkunci { opacity: .6; }
.bj-avitem .e { font-size: 1.5rem; }
.bj-avitem .h { font-family: var(--ff-mono); font-size: .62rem; color: var(--muted); margin-top: 3px; }

/* =========================================================
   10. GERAK & AKSESIBILITAS
   ========================================================= */
@keyframes bjPop { 0% { transform: scale(.94); opacity: 0 } 100% { transform: scale(1); opacity: 1 } }
.bj-pop { animation: bjPop .22s ease both; }

@media (prefers-reduced-motion: reduce) {
  .bj-pop, .bj-btn, .bj-tk, .bj-op { animation: none !important; transition: none !important; }
}

/* =====================================================================
   13. UNTUK ANAK: MASKOT, KONFETI, SUARA, HIKMAH
   ===================================================================== */

/* --- maskot kecil di umpan balik --- */
.bj-maskot { font-size: 1.35rem; margin-right: 9px; vertical-align: -3px; display: inline-block; }
.bj-umpan.ok .bj-maskot { animation: bjLoncat .5s ease; }
.bj-umpan.no .bj-maskot { animation: bjGeleng .45s ease; }

/* --- maskot besar di layar hasil --- */
.bj-maskot-besar { font-size: 3.4rem; line-height: 1; margin-bottom: 6px; animation: bjMuncul .45s ease both; }

@keyframes bjLoncat { 0%,100% { transform: translateY(0) } 35% { transform: translateY(-9px) scale(1.12) } }
@keyframes bjGeleng { 0%,100% { transform: translateX(0) } 25% { transform: translateX(-5px) } 75% { transform: translateX(5px) } }
@keyframes bjMuncul { 0% { transform: scale(.4) rotate(-14deg); opacity: 0 } 100% { transform: none; opacity: 1 } }

/* --- konfeti untuk momen besar saja --- */
.bj-konfeti { position: fixed; inset: 0; pointer-events: none; overflow: hidden; z-index: 999; }
.bj-konfeti i {
  position: absolute; top: -14px; width: 9px; height: 14px; border-radius: 2px;
  animation-name: bjJatuh; animation-timing-function: linear; animation-fill-mode: forwards;
}
@keyframes bjJatuh {
  0% { transform: translateY(0) rotate(0); opacity: 1 }
  100% { transform: translateY(102vh) rotate(680deg); opacity: .1 }
}

/* --- kartu hikmah --- */
.bj-hikmah {
  background: var(--p-teal); color: var(--p-teal-ink);
  border-radius: var(--r); padding: 16px 20px; margin: 4px 0 20px; text-align: left;
}
.bj-hikmah .lb {
  font-family: var(--ff-mono); font-size: .63rem; text-transform: uppercase;
  letter-spacing: .1em; opacity: .72; margin-bottom: 7px;
}
.bj-hikmah p {
  margin: 0 0 6px; font-family: var(--ff-serif, Georgia, serif);
  font-size: 1rem; line-height: 1.65; font-style: italic;
}
.bj-hikmah .sm { font-size: .74rem; opacity: .72; font-weight: 600; }

/* --- tombol kecil di bar profil (suara) --- */
.bj-chip.tombol { cursor: pointer; font-size: .85rem; line-height: 1; padding: 6px 10px; }
@media (hover: hover) { .bj-chip.tombol:hover { background: var(--neutral-hover); } }
@media (pointer: coarse) { .bj-chip.tombol { min-height: 40px; min-width: 40px; } }

/* --- baris pengaturan di profil --- */
.bj-set-row {
  display: flex; align-items: center; gap: 14px; justify-content: space-between;
  padding: 12px 0; border-top: 1px solid var(--line);
}
.bj-set-row:first-of-type { border-top: 0; }
.bj-set-row b { display: block; font-size: .88rem; font-weight: 700; }
.bj-set-row span { font-size: .78rem; color: var(--muted); line-height: 1.5; }

/* =====================================================================
   14. VISUAL LEBIH BESAR UNTUK TINGKAT AWAL
   ---------------------------------------------------------------------
   Anak yang sedang belajar mencacah perlu gambar yang cukup besar untuk
   ditunjuk dengan jari, bukan ikon kecil yang harus dijereng.
   ===================================================================== */
.bj-main[data-tingkat="0"] .kb-emo i,
.bj-main[data-tingkat="1"] .kb-emo i { font-size: 2.6rem; }
.bj-main[data-tingkat="0"] .kb-emo,
.bj-main[data-tingkat="1"] .kb-emo { gap: 10px; margin: 22px 0; }
.bj-main[data-tingkat="0"] .kb-frame span,
.bj-main[data-tingkat="1"] .kb-frame span { width: 34px; height: 34px; }
.bj-main[data-tingkat="0"] .bj-soal,
.bj-main[data-tingkat="1"] .bj-soal { font-size: 1.14rem; }
.bj-main[data-tingkat="0"] .bj-op,
.bj-main[data-tingkat="1"] .bj-op { font-size: 1.2rem; padding: 18px 20px; font-weight: 750; }

@media (max-width: 380px) {
  .bj-main[data-tingkat="0"] .kb-emo i,
  .bj-main[data-tingkat="1"] .kb-emo i { font-size: 2.1rem; }
  .bj-main[data-tingkat="0"] .kb-frame span,
  .bj-main[data-tingkat="1"] .kb-frame span { width: 28px; height: 28px; }
}

@media (prefers-reduced-motion: reduce) {
  .bj-maskot, .bj-maskot-besar, .bj-konfeti i { animation: none !important; }
}