:root{
  --bg:#fdf6f8;
  --surface:#ffffff;
  --surface-soft:#fdf1f5;
  --text:#2b1f28;
  --muted:#7d6c76;
  --line:#f0dde4;
  --primary:#e7508f;
  --primary-dark:#b43e70;
  --primary-soft:#fdeef4;
  --secondary:#2fa0cf;
  --secondary-soft:#eaf7fc;
  --sun:#e08a1e;
  --sun-soft:#fdf1de;
  --danger:#d6455a;
  --danger-soft:#fdecef;
  --success:#2f9e63;
  --success-soft:#eaf8f0;
  --radius-lg:22px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-card:0 10px 26px -14px rgba(43,31,40,.22);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg);
  color:var(--text);
  font-family:'Nunito',system-ui,sans-serif;
  font-size:16px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  padding-bottom:76px;
}
h1,h2,h3,.brand{
  font-family:'Baloo 2',system-ui,sans-serif;
  font-weight:800;
  color:var(--text);
  margin:0;
}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
img{max-width:100%;display:block}

.wrap{max-width:920px;margin:0 auto;padding:0 18px}

/* ---- topbar ---- */
.topbar{
  position:sticky;top:0;z-index:20;
  background:rgba(253,246,248,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  max-width:920px;margin:0 auto;padding:14px 18px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.brand{display:flex;align-items:center;gap:9px;font-size:1.18rem;color:var(--primary-dark)}
.brand img{width:32px;height:32px}
.back-link{
  display:flex;align-items:center;gap:6px;
  font-family:'Baloo 2',sans-serif;font-weight:700;font-size:.92rem;
  color:var(--primary-dark);
  padding:8px 14px;border-radius:999px;background:var(--primary-soft);
}
.topnav{display:flex;gap:6px}
.topnav a{
  font-family:'Baloo 2',sans-serif;font-weight:700;font-size:.86rem;
  padding:8px 13px;border-radius:999px;color:var(--muted);
}
.topnav a.active,.topnav a:hover{background:var(--primary-soft);color:var(--primary-dark)}

/* ---- hero ---- */
.hero{padding:30px 0 8px}
.hero h1{font-size:1.9rem}
.hero p{color:var(--muted);margin:8px 0 0;max-width:56ch}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-family:'Baloo 2',sans-serif;font-weight:700;font-size:.78rem;
  color:var(--primary-dark);background:var(--primary-soft);
  padding:5px 12px;border-radius:999px;margin-bottom:10px;
}

/* ---- cards / grid ---- */
.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:22px 0}
@media (max-width:560px){.grid{grid-template-columns:1fr}}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:20px;
  box-shadow:var(--shadow-card);
  display:flex;flex-direction:column;gap:10px;
}
.card .icon-badge{
  width:48px;height:48px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.5rem;
}
.card h3{font-size:1.12rem}
.card p{margin:0;color:var(--muted);font-size:.92rem}
.card.link-card{transition:transform .15s ease, box-shadow .15s ease}
.card.link-card:hover{transform:translateY(-3px);box-shadow:0 16px 30px -14px rgba(43,31,40,.28)}
.tint-pink .icon-badge{background:var(--primary-soft);color:var(--primary-dark)}
.tint-blue .icon-badge{background:var(--secondary-soft);color:var(--secondary)}
.tint-sun .icon-badge{background:var(--sun-soft);color:var(--sun)}
.tint-green .icon-badge{background:var(--success-soft);color:var(--success)}

section{margin:28px 0}
section > h2{font-size:1.2rem;margin-bottom:4px}
section > .section-desc{color:var(--muted);font-size:.9rem;margin:0 0 14px}

/* ---- quiz play screen (setelah Mulai Latihan) ---- */
.quiz-topbar{
  display:flex;align-items:center;justify-content:space-between;
  padding:22px 0 14px;border-bottom:1.5px solid var(--line);
}
.quiz-progress{font-family:'Baloo 2',sans-serif;font-weight:800;font-size:1.15rem;color:var(--primary-dark)}
.quiz-exit{
  background:none;border:none;color:var(--muted);
  font-family:'Nunito',sans-serif;font-weight:700;font-size:.92rem;
  cursor:pointer;padding:6px 10px;border-radius:8px;
}
.quiz-exit:hover{color:var(--danger);background:var(--danger-soft)}

/* ---- panel ---- */
.panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:20px;
  box-shadow:var(--shadow-card);
}

/* ---- pills / chips (option selectors) ---- */
.pill-group{display:flex;flex-wrap:wrap;gap:8px}
.pill{
  font-family:'Baloo 2',sans-serif;font-weight:700;font-size:.88rem;
  border:1.5px solid var(--line);background:var(--surface);color:var(--text);
  padding:9px 15px;border-radius:999px;cursor:pointer;
  user-select:none;transition:all .12s ease;
}
.pill:hover{border-color:var(--primary)}
.pill.active{
  background:var(--primary);border-color:var(--primary);color:#fff;
  box-shadow:0 6px 14px -6px rgba(231,80,143,.55);
}
.pill.active.op-btn{background:var(--secondary);border-color:var(--secondary);box-shadow:0 6px 14px -6px rgba(47,160,207,.5)}

.field-label{
  font-family:'Baloo 2',sans-serif;font-weight:700;font-size:.86rem;
  color:var(--text);margin:0 0 8px;display:block;
}

.toggle-row{display:flex;gap:8px;background:var(--surface-soft);padding:5px;border-radius:999px;width:max-content}
.toggle-row button{
  font-family:'Baloo 2',sans-serif;font-weight:700;font-size:.85rem;
  border:none;background:transparent;color:var(--muted);
  padding:8px 16px;border-radius:999px;cursor:pointer;
}
.toggle-row button.active{background:var(--primary);color:#fff}

/* ---- buttons ---- */
.btn{
  font-family:'Baloo 2',sans-serif;font-weight:700;font-size:.95rem;
  border:none;border-radius:999px;padding:12px 22px;cursor:pointer;
  display:inline-flex;align-items:center;gap:8px;justify-content:center;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 18px -8px rgba(231,80,143,.55)}
.btn-primary:hover{background:var(--primary-dark)}
.btn-secondary{background:var(--secondary);color:#fff;box-shadow:0 8px 18px -8px rgba(47,160,207,.5)}
.btn-ghost{background:var(--surface-soft);color:var(--primary-dark);border:1.5px solid var(--line)}
.btn-ghost:hover{border-color:var(--primary)}
.btn-block{width:100%}
.btn:disabled{opacity:.45;cursor:not-allowed}

/* ---- soal / question ---- */
.question-box{
  text-align:center;padding:26px 10px;
}
.question-expr{
  font-family:'Baloo 2',sans-serif;font-weight:800;font-size:2.4rem;
  color:var(--text);letter-spacing:.5px;
  display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;
}
.question-expr .op-sym{color:var(--primary)}
.answer-input{
  font-family:'Baloo 2',sans-serif;font-weight:800;font-size:2rem;
  width:150px;text-align:center;padding:10px 8px;
  border:2.5px solid var(--line);border-radius:var(--radius-md);
  background:var(--surface-soft);color:var(--text);
}
.answer-input:focus{outline:none;border-color:var(--primary)}
.answer-input.correct{border-color:var(--success);background:var(--success-soft)}
.answer-input.wrong{border-color:var(--danger);background:var(--danger-soft)}


.feedback{
  margin-top:14px;font-family:'Baloo 2',sans-serif;font-weight:700;font-size:1.05rem;
  min-height:1.4em;
}
.feedback.correct{color:var(--success)}
.feedback.wrong{color:var(--danger)}

.score-row{display:flex;gap:10px;justify-content:center;margin-top:6px}
.score-chip{
  background:var(--surface-soft);border:1px solid var(--line);border-radius:999px;
  padding:6px 14px;font-size:.85rem;color:var(--muted);
  font-family:'Baloo 2',sans-serif;font-weight:700;
}
.score-chip b{color:var(--text)}
.score-chip.good b{color:var(--success)}
.score-chip.bad b{color:var(--danger)}

/* ---- custom number inputs ---- */
.custom-row{display:flex;flex-direction:column;align-items:center;gap:14px}
.custom-line{display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap}
.num-field{
  font-family:'Baloo 2',sans-serif;font-weight:800;font-size:1.6rem;
  width:130px;text-align:center;padding:9px 6px;
  border:2px solid var(--line);border-radius:var(--radius-md);
  background:var(--surface-soft);color:var(--text);
}
.num-field:focus{outline:none;border-color:var(--secondary)}

/* ---- metode / place-value columns ---- */
.method-toggle{margin-top:18px;text-align:center}
.method-box{
  margin-top:16px;background:var(--surface-soft);border:1px dashed var(--line);
  border-radius:var(--radius-md);padding:18px;display:none;
}
.method-box.open{display:block}
.method-title{
  font-family:'Baloo 2',sans-serif;font-weight:700;font-size:.92rem;
  color:var(--primary-dark);margin-bottom:12px;text-align:center;
}
.place-cols{display:flex;justify-content:center;gap:4px;flex-wrap:wrap}
.place-col{display:flex;flex-direction:column;align-items:center;min-width:52px}
.place-col .pc-label{font-size:.68rem;color:var(--muted);margin-bottom:4px;font-weight:700}
.place-col .pc-digit{
  width:44px;height:44px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-family:'Baloo 2',sans-serif;font-weight:800;font-size:1.2rem;
  margin-bottom:3px;
}
.place-col.hue-a .pc-digit{background:var(--primary-soft);color:var(--primary-dark)}
.place-col.hue-b .pc-digit{background:var(--secondary-soft);color:var(--secondary)}
.place-col .pc-carry{font-size:.72rem;color:var(--danger);font-weight:800;min-height:1.1em}
.place-rule{border-top:2.5px solid var(--text);width:100%;margin-top:2px}
.place-col .pc-result{
  width:44px;height:44px;border-radius:10px;background:var(--success-soft);color:var(--success);
  display:flex;align-items:center;justify-content:center;
  font-family:'Baloo 2',sans-serif;font-weight:800;font-size:1.2rem;margin-top:6px;
}

/* input digit di baris hasil (dipakai saat Asha ngisi jawaban, isi dari kanan) */
.place-col .pc-input{
  width:44px;height:44px;border-radius:10px;text-align:center;padding:0;
  font-family:'Baloo 2',sans-serif;font-weight:800;font-size:1.2rem;
  border:2px solid var(--line);background:var(--surface);color:var(--text);
  margin-top:6px;
}
.place-col .pc-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
.place-col .pc-input:disabled{background:var(--surface-soft);color:transparent;border-color:var(--line);cursor:not-allowed}
.place-col .pc-input.correct{border-color:var(--success);background:var(--success-soft);color:var(--success)}
.place-col .pc-input.wrong{border-color:var(--danger);background:var(--danger-soft);color:var(--danger)}

/* skala lebih besar untuk kolom soal aktif (bukan panel penjelasan) */
.place-cols.lg{gap:8px}
.place-cols.lg .pc-label{font-size:.8rem}
.place-cols.lg .pc-digit,
.place-cols.lg .pc-input,
.place-cols.lg .pc-result{width:58px;height:58px;font-size:1.5rem}

.step-list{display:flex;flex-direction:column;gap:8px;margin-top:10px}
.step-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:10px 14px;font-size:.9rem;display:flex;align-items:center;gap:10px;
}
.step-item .step-num{
  width:22px;height:22px;border-radius:50%;background:var(--primary);color:#fff;
  font-family:'Baloo 2',sans-serif;font-weight:700;font-size:.72rem;
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.step-item .step-num.blue{background:var(--secondary)}
.method-stepper{display:flex;justify-content:center;gap:10px;margin-top:14px}

.long-div-table{display:flex;justify-content:center;overflow-x:auto;padding:6px 0}
.long-div-table table{border-collapse:collapse;font-family:'Baloo 2',sans-serif;font-weight:700}
.long-div-table td{padding:6px 8px;text-align:center;font-size:1.05rem}
.long-div-table .ld-quot{border-bottom:2.5px solid var(--text)}
.long-div-table .ld-sub{color:var(--danger)}
.long-div-table .ld-bring{color:var(--secondary)}

/* ---- matrix table ---- */
.matrix-scroll{overflow-x:auto;padding-bottom:6px}
table.matrix{border-collapse:collapse;width:100%;min-width:720px}
table.matrix th,table.matrix td{
  border:1px solid var(--line);text-align:center;padding:0;
  width:34px;height:34px;font-size:.8rem;
}
table.matrix th{
  background:var(--primary-soft);color:var(--primary-dark);
  font-family:'Baloo 2',sans-serif;font-weight:700;position:sticky;top:0;
}
table.matrix th:first-child,table.matrix td:first-child{
  background:var(--secondary-soft);color:var(--secondary);
  font-family:'Baloo 2',sans-serif;font-weight:700;position:sticky;left:0;
}
table.matrix td.cell{cursor:pointer;font-weight:700;color:var(--text)}
table.matrix td.cell.hidden-val{color:transparent;background:var(--surface-soft)}
table.matrix td.cell.hidden-val:hover{background:var(--primary-soft)}
table.matrix td.cell.revealed{background:var(--success-soft);color:var(--success)}
table.matrix td.cell.diag{box-shadow:inset 0 0 0 2px var(--sun)}

/* ---- multiplayer ---- */
.player-setup{display:flex;flex-direction:column;gap:10px;margin-bottom:16px}
.player-name-row{display:flex;align-items:center;gap:10px}
.player-dot{
  width:34px;height:34px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;color:#fff;
  font-family:'Baloo 2',sans-serif;font-weight:800;
}
.name-input{
  flex:1;font-family:'Nunito',sans-serif;font-weight:700;font-size:1rem;
  padding:10px 14px;border:1.5px solid var(--line);border-radius:var(--radius-sm);
  background:var(--surface-soft);color:var(--text);
}
.name-input:focus{outline:none;border-color:var(--primary)}

.board{display:flex;flex-direction:column;gap:16px;margin-top:18px}
.player-board{
  background:var(--surface);border:1.5px solid var(--line);border-radius:var(--radius-lg);
  padding:16px;box-shadow:var(--shadow-card);
}
.player-board.winner{border-color:var(--success);box-shadow:0 0 0 3px var(--success-soft)}
.pb-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.pb-name{display:flex;align-items:center;gap:10px;font-family:'Baloo 2',sans-serif;font-weight:800;font-size:1.05rem}
.pb-total{font-family:'Baloo 2',sans-serif;font-weight:800;font-size:1.3rem;color:var(--primary-dark)}
.slots{display:flex;flex-wrap:wrap;gap:8px}
.slot{
  width:58px;height:58px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-family:'Baloo 2',sans-serif;font-weight:800;font-size:1.3rem;
  cursor:pointer;user-select:none;box-shadow:0 6px 14px -8px rgba(43,31,40,.4);
  transition:transform .12s ease;
}
.slot:active{transform:scale(.94)}
.slot.revealed{
  background:var(--surface-soft);color:var(--text);
  border:2px solid var(--line);box-shadow:none;cursor:default;
}
.crown{font-size:1.3rem}

/* ---- footer / bottom nav ---- */
.bottom-nav{
  position:fixed;bottom:0;left:0;right:0;z-index:30;
  background:var(--surface);border-top:1px solid var(--line);
  display:flex;justify-content:space-around;padding:8px 4px calc(8px + env(safe-area-inset-bottom));
  box-shadow:0 -8px 20px -14px rgba(43,31,40,.25);
}
.bottom-nav a{
  display:flex;flex-direction:column;align-items:center;gap:2px;
  font-size:.66rem;color:var(--muted);font-family:'Baloo 2',sans-serif;font-weight:700;
  padding:4px 8px;border-radius:10px;min-width:56px;
}
.bottom-nav a .bn-icon{font-size:1.15rem}
.bottom-nav a.active{color:var(--primary-dark)}

footer.page-footer{text-align:center;color:var(--muted);font-size:.8rem;padding:30px 0 10px}

@media (min-width:881px){.bottom-nav{display:none}}
@media (max-width:880px){.topnav{display:none}}

/* ---- mobile: kolom bersusun scroll horizontal, bukan pecah 2 baris ---- */
@media (max-width:480px){
  .place-cols{
    flex-wrap:nowrap;justify-content:flex-start;
    overflow-x:auto;-webkit-overflow-scrolling:touch;
    padding:2px 2px 8px;margin:0 -2px;
  }
  .place-cols.lg{gap:6px}
  .place-cols.lg .pc-digit,
  .place-cols.lg .pc-input,
  .place-cols.lg .pc-result{width:46px;height:46px;font-size:1.15rem;flex-shrink:0}
  .place-cols .pc-label{font-size:.64rem}
  .place-col{flex-shrink:0}
  .num-field{width:96px;font-size:1.35rem}
  .answer-input{width:120px;font-size:1.7rem}
  .custom-row{gap:10px}
  .custom-line{gap:8px}
}