/* ===== Token (juga dipakai panel admin) ===== */
:root {
  --ink: #1D2B4F; --ink2: #44506F; --mut: #6B7591; --bg: #FFFBF3; --tint: #FFF3DC; --card: #fff; --line: #EDE3CF; --line2: #F6EFE0;
  --c: #FF6B4A; --c-soft: #FFE1D8; --y: #FFC531; --y-soft: #FFF0BF; --t: #13A89E; --t-soft: #D5F4EF; --b: #4C8DFF; --b-soft: #DDE9FF; --p: #7A5CF0;
  --g: #1D2B4F; --o: #FF6B4A; --o-soft: #FFE1D8; --g-soft: #E9EEFA;
  --ok: #138A55; --ok-bg: #D9F7E8; --no: #C2401F; --no-bg: #FFE1DB; --warn: #9A6A00; --warn-bg: #FFF0BF;
  --shadow: 0 10px 30px rgba(29, 43, 79, .09); --radius: 20px; --mono: ui-monospace, Consolas, monospace;
  --fh: 'Baloo 2', system-ui, sans-serif; --fb: 'Nunito', system-ui, -apple-system, 'Segoe UI', sans-serif;
  color-scheme: light;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--fb); background: var(--bg); color: var(--ink); font-size: 17px; line-height: 1.6; overflow-x: hidden; }
a { color: var(--c); }
h1, h2, h3, h4 { font-family: var(--fh); line-height: 1.15; margin: 0 0 .45em; letter-spacing: -.01em; }
h1 { font-size: clamp(30px, 4.6vw, 48px); font-weight: 800; }
h2 { font-size: clamp(24px, 3.2vw, 34px); font-weight: 800; }
h3 { font-size: 21px; font-weight: 700; }
p { margin: 0 0 1em; }
button { font: inherit; color: inherit; }
.muted { color: var(--mut); }
:focus-visible { outline: 3px solid var(--b); outline-offset: 2px; border-radius: 8px; }
#app { min-height: calc(100vh - 150px); }
.boot { padding: 80px 16px; text-align: center; color: var(--mut); }
.wrap { width: min(1140px, 100% - 32px); margin-inline: auto; }

/* ===== Header ===== */
.top { position: sticky; top: 0; z-index: 40; display: flex; align-items: center; gap: 12px; padding: 10px clamp(16px, 3vw, 32px); background: rgba(255, 251, 243, .9); backdrop-filter: blur(10px); border-bottom: 1px solid var(--line); }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--ink); font-family: var(--fh); font-weight: 700; font-size: 21px; white-space: nowrap; }
.brand b { color: var(--c); font-weight: 800; }
.brand small { font-family: var(--fb); font-size: 11px; font-weight: 800; color: var(--mut); border: 1px solid var(--line); border-radius: 99px; padding: 1px 8px; margin-left: 2px; }
.logo { width: 38px; height: 38px; flex: none; }
.topnav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.topnav a { color: var(--ink2); text-decoration: none; font-weight: 800; font-size: 15px; padding: 8px 12px; border-radius: 12px; }
.topnav a:hover, .topnav a.on { background: var(--y-soft); color: var(--ink); }
.topnav .kid { display: inline-flex; align-items: center; gap: 6px; background: var(--card); border: 1px solid var(--line); }
.topnav .kid i { font-style: normal; width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: var(--c); color: #fff; font-size: 13px; }
.topnav .btn { white-space: nowrap; }
@media (max-width: 760px) { .topnav a.hide-m, .topnav .hide-m { display: none; } .topnav a { padding: 8px 8px; font-size: 14px; } .brand > span { font-size: 17px; } .brand small { display: none; } }
@media (max-width: 430px) { .brand > span { display: none; } }
.foot { text-align: center; color: var(--mut); font-size: 14px; padding: 28px 16px 36px; border-top: 1px solid var(--line); margin-top: 48px; }
.foot a { color: var(--mut); }

/* ===== Tombol & form ===== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 13px 22px; border-radius: 999px; border: 2px solid transparent; background: var(--c); color: #fff; font-weight: 800; text-decoration: none; cursor: pointer; transition: transform .12s, box-shadow .15s, background .15s; min-height: 48px; box-shadow: 0 5px 0 #D9472A; }
.btn:hover { transform: translateY(-2px); box-shadow: 0 7px 0 #D9472A; }
.btn:active { transform: translateY(1px); box-shadow: 0 2px 0 #D9472A; }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }
.btn.o { background: var(--c); }
.btn.ink { background: var(--ink); box-shadow: 0 5px 0 #0D1630; }
.btn.t { background: var(--t); box-shadow: 0 5px 0 #0B7A72; }
.btn.line { background: var(--card); color: var(--ink); border-color: var(--ink); box-shadow: none; }
.btn.line:hover { background: var(--ink); color: #fff; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); box-shadow: none; }
.btn.sm { padding: 8px 16px; min-height: 40px; font-size: 15px; box-shadow: 0 3px 0 rgba(0, 0, 0, .15); }
.btn.sm.line, .btn.sm.ghost { box-shadow: none; }
.btn.danger { background: var(--no); box-shadow: 0 4px 0 #8f2a12; }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field label { font-weight: 800; font-size: 15px; }
.field input, .field select, .field textarea { font: inherit; padding: 12px 16px; border-radius: 14px; border: 2px solid var(--line); background: var(--card); color: var(--ink); min-height: 48px; }
.field input:focus, .field select:focus { outline: none; border-color: var(--b); }
.field small { color: var(--mut); font-size: 13px; }
.alert { padding: 12px 16px; border-radius: 14px; font-weight: 700; margin-bottom: 14px; }
.alert.err { background: var(--no-bg); color: var(--no); } .alert.ok { background: var(--ok-bg); color: var(--ok); } .alert.info { background: var(--b-soft); color: #23519e; }
.card { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--line2); }
.pill { display: inline-flex; align-items: center; gap: 6px; padding: 4px 12px; border-radius: 99px; background: var(--y-soft); color: var(--ink); font-weight: 800; font-size: 13px; }
.pill.t { background: var(--t-soft); color: #0B7A72; } .pill.c { background: var(--c-soft); color: #B4381B; } .pill.b { background: var(--b-soft); color: #23519e; } .pill.k { background: #E9E3FF; color: #5236C9; }
.eyebrow { display: inline-block; font-weight: 800; font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--c); margin-bottom: 10px; }
.toast { position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%); background: var(--ink); color: #fff; padding: 12px 20px; border-radius: 14px; font-weight: 700; z-index: 100; box-shadow: var(--shadow); animation: pop .25s; max-width: calc(100% - 32px); }
.toast.out { opacity: 0; transition: opacity .3s; }
@keyframes pop { from { transform: translateX(-50%) scale(.9); opacity: 0; } }

/* ===== Landing ===== */
.hero { padding: 40px 0 30px; }
.hero-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 36px; align-items: center; }
.hero .lead { font-size: 19px; color: var(--ink2); }
.cta { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0; }
.hero-demo { background: var(--card); border-radius: 28px; padding: 18px; box-shadow: var(--shadow); }
@media (max-width: 880px) { .hero-grid { grid-template-columns: 1fr; } }
.sec { padding: 40px 0; }
.lvgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 16px; }
.lvcard { padding: 20px; text-decoration: none; color: var(--ink); border-top: 8px solid var(--lc, var(--y)); display: flex; flex-direction: column; gap: 6px; transition: transform .15s; position: relative; }
.lvcard:hover { transform: translateY(-4px); }
.lvcard .em { font-size: 34px; line-height: 1; }
.lvcard h3 { margin: 4px 0 0; }
.lvcard small { color: var(--mut); font-weight: 700; }
.lvcard p { margin: 0; color: var(--ink2); font-size: 15px; }
.lvcard .price { font-family: var(--fh); font-size: 22px; font-weight: 800; color: var(--c); margin-top: auto; }
.lvcard .bar { height: 10px; background: var(--line2); border-radius: 99px; overflow: hidden; margin-top: 8px; }
.lvcard .bar i { display: block; height: 100%; background: var(--lc, var(--t)); border-radius: 99px; }
.lvcard .own { position: absolute; top: 14px; right: 14px; }
.steps4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; counter-reset: s; }
.steps4 > div { padding: 18px; }
.steps4 > div::before { counter-increment: s; content: counter(s); display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; background: var(--ink); color: var(--y); font-family: var(--fh); font-weight: 800; font-size: 20px; margin-bottom: 10px; }
.steps4 b { display: block; font-family: var(--fh); font-size: 19px; }
.steps4 span { color: var(--ink2); font-size: 15px; }
@media (max-width: 860px) { .steps4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .steps4 { grid-template-columns: 1fr; } }

/* ===== Auth ===== */
.auth-wrap { display: grid; place-items: center; padding: 32px 16px; }
.auth { width: min(480px, 100%); padding: 28px; }
.auth .sub { color: var(--mut); }
.auth .alt { text-align: center; margin: 14px 0 0; color: var(--mut); }
.auth fieldset { border: 2px dashed var(--line); border-radius: 16px; padding: 12px 14px 2px; margin: 0 0 14px; }
.auth legend { font-weight: 800; padding: 0 6px; }
.lvpick { display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 8px; margin-bottom: 14px; }
.lvpick label { cursor: pointer; }
.lvpick input { position: absolute; opacity: 0; pointer-events: none; }
.lvpick span { display: flex; flex-direction: column; align-items: center; gap: 2px; padding: 10px 6px; border: 2px solid var(--line); border-radius: 14px; font-weight: 800; font-size: 14px; text-align: center; background: var(--card); }
.lvpick span i { font-style: normal; font-size: 24px; }
.lvpick input:checked + span { border-color: var(--c); background: var(--c-soft); }
.lvpick input:focus-visible + span { outline: 3px solid var(--b); }

/* ===== Dashboard ===== */
.dash { padding: 26px 0; }
.kids { display: flex; gap: 10px; flex-wrap: wrap; margin: 6px 0 20px; }
.kidbtn { display: inline-flex; align-items: center; gap: 10px; padding: 8px 16px 8px 8px; border-radius: 99px; border: 2px solid var(--line); background: var(--card); font-weight: 800; cursor: pointer; text-decoration: none; color: var(--ink); }
.kidbtn i { font-style: normal; width: 36px; height: 36px; border-radius: 50%; display: grid; place-items: center; color: #fff; background: var(--c); font-family: var(--fh); }
.kidbtn.on { border-color: var(--c); background: var(--c-soft); }
.kidbtn small { color: var(--mut); font-weight: 700; display: block; font-size: 12px; line-height: 1.2; }
.continue { display: grid; grid-template-columns: auto 1fr auto; gap: 18px; align-items: center; padding: 20px 22px; margin-bottom: 26px; background: linear-gradient(120deg, var(--y-soft), var(--c-soft)); border: 0; }
.continue .big { font-size: 46px; }
@media (max-width: 640px) { .continue { grid-template-columns: 1fr; text-align: center; } }
.paybanner { display: flex; gap: 14px; align-items: center; justify-content: space-between; flex-wrap: wrap; padding: 14px 18px; border-radius: 16px; background: var(--b-soft); margin-bottom: 18px; font-weight: 700; }
.paybanner.wait { background: var(--warn-bg); }

/* ===== Level page ===== */
.lvhead { display: flex; gap: 18px; align-items: center; flex-wrap: wrap; padding: 22px; margin: 22px 0; border-left: 10px solid var(--lc); }
.lvhead .em { font-size: 54px; }
.lvhead > div:nth-child(2) { flex: 1; min-width: 220px; }
.lgrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 12px; }
.lcard { display: grid; grid-template-columns: 48px 1fr; gap: 12px; align-items: center; padding: 14px 16px; text-decoration: none; color: var(--ink); transition: transform .12s, border-color .12s; border: 2px solid transparent; }
.lcard:hover { transform: translateY(-2px); border-color: var(--y); }
.lcard .st { width: 48px; height: 48px; border-radius: 14px; display: grid; place-items: center; font-family: var(--fh); font-weight: 800; font-size: 20px; background: var(--y-soft); }
.lcard.done .st { background: var(--t); color: #fff; }
.lcard.locked { opacity: .7; } .lcard.locked .st { background: var(--line2); }
.lcard b { display: block; line-height: 1.3; }
.lcard small { color: var(--mut); font-weight: 700; }
.kritis { color: #B4381B; font-weight: 800; }
.examcard { margin-top: 22px; padding: 22px; display: flex; gap: 18px; align-items: center; flex-wrap: wrap; background: var(--ink); color: #fff; border: 0; }
.examcard .big { font-size: 46px; }
.examcard > div:nth-child(2) { flex: 1; min-width: 220px; }
.examcard p { color: #C5CDE2; margin: 0; }
.examcard .btn.line { background: transparent; color: #fff; border-color: rgba(255, 255, 255, .6); }

/* ===== Lesson ===== */
.lesson { display: grid; grid-template-columns: 250px minmax(0, 1fr); gap: 26px; padding: 22px 0; }
.toc { position: sticky; top: 76px; align-self: start; max-height: calc(100vh - 96px); overflow: auto; padding-right: 4px; }
.toc h4 { font-size: 15px; color: var(--mut); margin: 0 0 8px; }
.toc a { display: flex; gap: 8px; align-items: flex-start; padding: 8px 10px; border-radius: 12px; text-decoration: none; color: var(--ink2); font-weight: 700; font-size: 14.5px; line-height: 1.35; }
.toc a i { font-style: normal; width: 22px; flex: none; text-align: center; }
.toc a.on { background: var(--y-soft); color: var(--ink); }
.toc a.done i { color: var(--t); }
.toc a.locked { opacity: .55; }
@media (max-width: 920px) { .lesson { grid-template-columns: 1fr; } .toc { display: none; } }
.lhead .meta { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; }
.lhead p { color: var(--ink2); font-size: 18px; }
.lsec { margin: 26px 0; }
.lsec > h2 { display: flex; align-items: center; gap: 12px; font-size: 24px; }
.lsec > h2 .n { width: 38px; height: 38px; border-radius: 12px; background: var(--ink); color: var(--y); display: grid; place-items: center; font-size: 19px; flex: none; }
.prose { background: var(--card); border-radius: var(--radius); padding: 22px 24px; box-shadow: var(--shadow); font-size: 18px; }
.prose p:last-child { margin: 0; }
.tip { background: var(--y-soft); border-left: 6px solid var(--y); border-radius: 14px; padding: 12px 16px; margin: 14px 0 0; font-size: 16.5px; }
.tip b { display: block; font-family: var(--fh); font-size: 18px; }
.tip.osn { background: #EFEAFF; border-color: var(--p); }
.gasing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 14px 0 0; }
.gasing > div { background: var(--bg); border-radius: 14px; padding: 12px; font-size: 15px; }
.gasing span { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 8px; background: var(--c); color: #fff; font-weight: 800; font-size: 14px; margin-right: 6px; }
.gasing b { font-family: var(--fh); font-size: 17px; display: inline; }
.gasing > div > b + * { display: block; }
@media (max-width: 640px) { .gasing { grid-template-columns: 1fr; } }
.tri { display: grid; grid-template-columns: 1fr 1fr; width: 160px; margin: 14px auto 0; text-align: center; font-family: var(--fh); font-weight: 800; font-size: 26px; border: 3px solid var(--ink); border-radius: 12px; overflow: hidden; }
.tri span:first-child { grid-column: 1 / 3; border-bottom: 3px solid var(--ink); background: var(--y-soft); }
.tri span:nth-child(2) { border-right: 3px solid var(--ink); background: var(--c-soft); } .tri span:nth-child(3) { background: var(--t-soft); }
.lockbox { text-align: center; padding: 36px 24px; max-width: 640px; margin: 32px auto; }
.lockbox .ic { font-size: 54px; }
.lnav { display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap; margin-top: 30px; }

/* ===== Scene (animasi) ===== */
.scene { background: var(--card); border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px; }
.scene-cap { min-height: 3.2em; margin: 12px 0; padding: 12px 16px; border-radius: 14px; background: var(--tint); font-weight: 700; font-size: 18px; }
.scene-cap.in { animation: capin .35s ease; }
@keyframes capin { from { opacity: 0; transform: translateY(6px); } }
.scene-bar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.sc-dots { display: flex; gap: 5px; flex: 1; justify-content: center; }
.sc-dots i { width: 10px; height: 10px; border-radius: 50%; background: var(--line); transition: background .2s; }
.sc-dots i.on { background: var(--c); }
.scene .wg-ctl { display: none; }

/* ===== Widget umum ===== */
.wg { display: flex; flex-direction: column; gap: 12px; }
.wg-stage { display: flex; justify-content: center; align-items: center; min-height: 140px; min-width: 0; max-width: 100%; }
.wg-eq { text-align: center; font-family: var(--fh); font-size: 26px; font-weight: 700; min-height: 1.4em; }
.wg-eq small { display: block; font-family: var(--fb); font-size: 15px; color: var(--mut); font-weight: 700; }
.wg-eq b { color: var(--c); }
.wg-eq .hl-y { background: var(--y-soft); border-radius: 8px; padding: 0 6px; }
.wg-ctl { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; align-items: center; }
.wg-ctl .hint { flex-basis: 100%; text-align: center; margin: 0; color: var(--mut); font-size: 14px; font-weight: 700; }
.pop { display: inline-block; animation: popin .45s cubic-bezier(.3, 1.6, .5, 1); }
@keyframes popin { from { transform: scale(0); } }
.stp { display: inline-flex; align-items: center; gap: 6px; background: var(--bg); border: 2px solid var(--line); border-radius: 99px; padding: 4px 6px 4px 14px; font-weight: 800; font-size: 14px; }
.stp button { width: 34px; height: 34px; border-radius: 50%; border: 0; background: var(--ink); color: #fff; font-size: 20px; font-weight: 800; cursor: pointer; line-height: 1; }
.stp b { min-width: 34px; text-align: center; font-family: var(--fh); font-size: 20px; }
.mini { min-width: 30px; height: 30px; border-radius: 9px; border: 2px solid var(--line); background: var(--card); font-weight: 800; cursor: pointer; margin: 2px; }
.rng { display: flex; align-items: center; gap: 10px; font-weight: 800; }
.rng input { width: min(280px, 60vw); accent-color: var(--c); }
.emo-pick { display: flex; gap: 4px; }
.emo-pick button { width: 40px; height: 40px; border-radius: 12px; border: 2px solid var(--line); background: var(--card); font-size: 20px; cursor: pointer; }
.emo-pick button.on { border-color: var(--c); background: var(--c-soft); }

/* counter */
.cnt-grp { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; max-width: 480px; }
.cnt-obj, .cnt-add { width: 54px; height: 54px; border-radius: 16px; border: 2px solid var(--line); background: var(--card); font-size: 30px; cursor: pointer; position: relative; animation: popin .35s cubic-bezier(.3, 1.6, .5, 1) both; }
.cnt-obj.counted { border-color: var(--t); background: var(--t-soft); }
.cnt-obj.counted::after { content: attr(data-c); position: absolute; top: -8px; right: -8px; background: var(--t); color: #fff; font-size: 12px; font-weight: 800; border-radius: 99px; min-width: 22px; height: 22px; display: grid; place-items: center; }
.cnt-add { border-style: dashed; color: var(--mut); font-size: 24px; }
.cnt-cmp { display: grid; grid-template-columns: 1fr auto 1fr; gap: 14px; align-items: center; width: 100%; }
.cnt-cmp .cnt-grp { background: var(--bg); border-radius: 18px; padding: 12px; }
.cnt-sym { font-family: var(--fh); font-size: 48px; font-weight: 800; color: var(--c); }
.big-n { font-size: 54px; color: var(--c); }
/* tenframe */
.tf-wrap { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; }
.tf { display: grid; grid-template-columns: repeat(5, 54px); gap: 6px; background: #F4F1FF; padding: 8px; border-radius: 18px; transition: box-shadow .3s; }
.tf-b { background: #E3F8F5; }
.tf.full { box-shadow: 0 0 0 5px var(--y); }
.tf-cell { width: 54px; height: 54px; border-radius: 12px; border: 0; background: rgba(255, 255, 255, .85); display: grid; place-items: center; cursor: pointer; padding: 0; }
.tf-cell.hl { animation: blink .7s ease-in-out 3; }
@keyframes blink { 50% { background: var(--y); } }
.dot { width: 40px; height: 40px; border-radius: 50%; animation: popin .35s cubic-bezier(.3, 1.6, .5, 1) both; }
.dot.fly { animation: fly .6s cubic-bezier(.3, 1.3, .5, 1) both; animation-delay: var(--d); }
@keyframes fly { from { transform: translate(260px, 0) scale(.6); opacity: 0; } }
@media (max-width: 560px) { .tf { grid-template-columns: repeat(5, 44px); } .tf-cell { width: 44px; height: 44px; } .dot { width: 32px; height: 32px; } }
/* numberline */
.nl-svg { width: 100%; max-width: 700px; height: auto; font-weight: 700; }
.nl-svg .arc { stroke-dashoffset: 400; animation: draw .6s ease forwards; animation-delay: var(--d); }
@keyframes draw { from { stroke-dashoffset: 400; } to { stroke-dashoffset: 0; } }
.nl-svg .frog { transition: x .6s ease; }
/* placevalue */
.pv-cols { display: flex; gap: 18px; align-items: flex-end; flex-wrap: wrap; justify-content: center; }
.pv-col { display: flex; flex-direction: column; align-items: center; gap: 6px; min-width: 70px; }
.pv-col small { font-weight: 800; color: var(--mut); }
.pv-blocks { display: flex; flex-wrap: wrap; gap: 4px; align-items: flex-end; justify-content: center; max-width: 220px; min-height: 30px; }
.pv-blocks i { display: block; animation: popin .3s cubic-bezier(.3, 1.6, .5, 1) both; border: 2px solid rgba(0, 0, 0, .18); }
.pv-k { width: 46px; height: 46px; background: var(--p); border-radius: 6px; box-shadow: 4px -4px 0 #5a40c9; }
.pv-h { width: 50px; height: 50px; background: repeating-linear-gradient(90deg, var(--b) 0 4px, #3b78e8 4px 5px), var(--b); border-radius: 4px; }
.pv-t { width: 12px; height: 60px; background: repeating-linear-gradient(0deg, var(--t) 0 5px, #0e8f86 5px 6px); border-radius: 3px; }
.pv-u { width: 14px; height: 14px; background: var(--c); border-radius: 3px; }
/* array */
.arr { display: flex; flex-direction: column; gap: 6px; padding: 8px; }
.arr-row { display: flex; gap: 6px; padding: 4px 6px; border-radius: 12px; transition: background .3s; }
.arr-row.lit { background: var(--y-soft); }
.arr-dot { width: 24px; height: 24px; border-radius: 50%; background: var(--b); animation: popin .3s cubic-bezier(.3, 1.6, .5, 1) both; }
/* fraction */
.w-frac .wg-stage { flex-direction: column; gap: 12px; }
.fbar { display: flex; width: min(520px, 100%); height: 58px; border: 3px solid var(--ink); border-radius: 12px; overflow: hidden; }
.fseg { flex: 1; border: 0; border-right: 2px solid var(--ink); background: #fff; cursor: pointer; transition: background .25s; padding: 0; }
.fseg:last-child { border-right: 0; }
.fseg.on { background: var(--y); }
.frac { display: inline-flex; flex-direction: column; align-items: center; line-height: 1; vertical-align: middle; font-size: 26px; margin: 0 4px; }
.frac sup { border-bottom: 3px solid currentColor; padding: 0 6px 2px; } .frac sub { padding-top: 2px; }
/* clock */
.clk { width: 220px; height: 220px; } .clk .hand { transform-origin: 100px 100px; transition: transform .6s cubic-bezier(.3, 1.3, .5, 1); }
/* area */
.ag-svg { width: min(460px, 100%); height: auto; }
.ag-svg .peri { stroke-dasharray: var(--len); stroke-dashoffset: var(--len); animation: drawp 1.4s ease forwards; }
@keyframes drawp { to { stroke-dashoffset: 0; } }
/* angle */
.ang-svg { width: min(420px, 100%); height: auto; }
/* shapes */
.shp-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 10px; width: 100%; }
.shp { border: 2px solid var(--line); border-radius: 16px; background: var(--card); padding: 8px; cursor: pointer; display: flex; flex-direction: column; align-items: center; gap: 4px; font-weight: 800; }
.shp svg { width: 80px; height: 78px; }
.shp.on { border-color: var(--c); background: var(--c-soft); transform: scale(1.04); }
/* bars */
.bars { display: flex; gap: 18px; align-items: flex-end; justify-content: center; min-height: 200px; padding-top: 10px; }
.bcol { display: flex; flex-direction: column; align-items: center; gap: 4px; font-weight: 800; }
.bbar { width: 46px; border-radius: 10px 10px 4px 4px; transition: height .4s cubic-bezier(.3, 1.3, .5, 1); min-height: 2px; }
.bv { font-family: var(--fh); font-size: 18px; }
.pict-t { border-collapse: collapse; font-size: 26px; }
.pict-t th { font-size: 16px; text-align: right; padding: 6px 12px; } .pict-t td { padding: 4px 8px; border-bottom: 1px dashed var(--line); }
/* cross */
.cx { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.cx-num { display: flex; gap: 10px; font-family: var(--fh); font-size: 54px; font-weight: 800; line-height: 1; }
.cx-num span { width: 60px; text-align: center; border-radius: 14px; transition: background .3s; }
.cx-num span.on { background: var(--y-soft); } .cx-num span.on2 { background: var(--t-soft); }
.cx-x { width: 130px; height: 40px; margin: -4px 0; }
.cx-steps { margin: 10px 0 0; padding-left: 0; list-style: none; font-size: 18px; font-weight: 700; display: grid; gap: 6px; }
.cx-steps li { background: var(--bg); border-radius: 12px; padding: 6px 14px; animation: capin .35s ease; }
/* percent */
.w-pct .wg-stage { flex-direction: column; }
.pct-bar { display: grid; grid-template-columns: repeat(20, 1fr); width: min(560px, 100%); height: 54px; border: 3px solid var(--ink); border-radius: 12px; overflow: hidden; }
.pct-bar i { border-right: 1px solid #CFD6E6; background: #fff; transition: background .25s; }
.pct-bar i:nth-child(2n) { border-right: 2px solid var(--ink); }
.pct-bar i.on { background: var(--t); }
.pct-lab { display: flex; justify-content: space-between; width: min(560px, 100%); font-weight: 800; color: var(--mut); font-size: 13px; }
/* fingers */
.hands { display: flex; gap: 40px; }
.hand { display: flex; gap: 6px; align-items: flex-end; position: relative; padding-bottom: 50px; }
.hand.flip { flex-direction: row-reverse; }
.hand i { width: 26px; height: 92px; border-radius: 13px 13px 6px 6px; background: #F6C9A8; border: 2px solid #C98A63; transition: height .4s, background .3s; }
.hand i:nth-child(1) { height: 70px; } .hand i:nth-child(5) { height: 60px; }
.hand i.down { height: 34px !important; background: var(--c); border-color: #B4381B; }
.hand b { position: absolute; bottom: 0; left: 50%; transform: translateX(-50%); font-family: var(--fh); font-size: 32px; }
/* box, circle */
.box-svg { width: min(380px, 100%); height: auto; }
.box-svg .cube { animation: popin .3s ease both; animation-delay: var(--d); transform-box: fill-box; transform-origin: center; }
.circ-svg { width: min(520px, 100%); height: auto; max-height: 240px; }
/* dice, stats */
.w-dice .wg-stage { flex-direction: column; }
.dice-face { font-size: 64px; line-height: 1; }
.st-row { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.st-v { width: 52px; height: 52px; border-radius: 14px; border: 2px solid var(--line); background: var(--card); font-family: var(--fh); font-weight: 800; font-size: 22px; cursor: pointer; transition: transform .3s; }
.st-v.mid { border-color: var(--t); background: var(--t-soft); }
.st-v.mode { box-shadow: inset 0 -6px 0 var(--y); }
.numpad { display: flex; flex-wrap: wrap; gap: 4px; justify-content: center; }

/* ===== Soal (latihan, kuis, ujian) ===== */
.qbox { padding: 22px; }
.qtext { font-family: var(--fh); font-size: 25px; font-weight: 700; line-height: 1.35; margin-bottom: 16px; }
.qtext small { font-family: var(--fb); font-size: 14px; color: var(--mut); }
.qv { display: block; margin: 10px auto 0; max-width: 100%; height: auto; }
.qv.big { font-size: 38px; font-weight: 800; text-align: center; letter-spacing: .02em; }
.qv.objs { display: flex; flex-wrap: wrap; gap: 6px; font-size: 34px; line-height: 1.1; justify-content: center; max-width: 520px; }
.qv.cmp { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; font-size: 28px; text-align: center; }
.qv.cmp > div { background: var(--bg); border-radius: 14px; padding: 10px; word-break: break-all; }
.qv.cmp small { display: block; font-size: 14px; color: var(--mut); font-family: var(--fb); }
.qv.pict { border-collapse: collapse; font-size: 26px; margin: 10px auto 0; }
.qv.pict th { font-size: 16px; text-align: right; padding: 4px 10px; font-family: var(--fb); }
.opts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.opt { border: 3px solid var(--line); background: var(--bg); border-radius: 18px; padding: 16px 12px; font-family: var(--fh); font-weight: 800; font-size: 24px; color: var(--ink); cursor: pointer; transition: transform .12s, border-color .12s, background .12s; min-height: 64px; }
.opt:hover:not(:disabled) { border-color: var(--ink); transform: translateY(-2px); }
.opt.sel { border-color: var(--b); background: var(--b-soft); }
.opt.right { border-color: #1EA866; background: #D9F7E8; }
.opt.wrong { border-color: var(--c); background: #FFE1DB; animation: shake .35s; }
@keyframes shake { 25% { transform: translateX(-6px); } 75% { transform: translateX(6px); } }
.fb { margin-top: 14px; padding: 14px 16px; border-radius: 14px; font-size: 17px; }
.fb.ok { background: var(--ok-bg); } .fb.no { background: var(--no-bg); }
.fb > b:first-child { display: block; font-family: var(--fh); font-size: 21px; }
.qbar { height: 12px; background: var(--line2); border-radius: 99px; overflow: hidden; margin-bottom: 8px; }
.qbar i { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--y), var(--c)); border-radius: 99px; transition: width .4s; }
.qmeta { display: flex; justify-content: space-between; color: var(--mut); font-weight: 800; font-size: 14px; margin-bottom: 8px; gap: 10px; flex-wrap: wrap; }
.qend { text-align: center; padding: 26px 18px; }
.stars { font-size: 40px; letter-spacing: 4px; }
.stars span { display: inline-block; animation: popin .45s cubic-bezier(.3, 1.6, .5, 1) both; }
.stars .off { filter: grayscale(1); opacity: .3; }
.practice-tabs { display: flex; gap: 8px; margin: 18px 0 10px; flex-wrap: wrap; }
.practice-tabs button { border: 2px solid var(--line); background: var(--card); border-radius: 99px; padding: 8px 16px; font-weight: 800; cursor: pointer; }
.practice-tabs button.on { background: var(--ink); border-color: var(--ink); color: #fff; }
.drill-top { display: flex; justify-content: space-between; align-items: center; font-family: var(--fh); font-size: 24px; font-weight: 800; margin-bottom: 10px; }
.drill-top .tm { background: var(--ink); color: var(--y); border-radius: 12px; padding: 2px 14px; }
@media (max-width: 520px) { .qtext { font-size: 21px; } .opt { font-size: 21px; padding: 12px 8px; } .qv.big { font-size: 30px; } }

/* ===== Ujian ===== */
.exam { padding: 22px 0; }
.exam-intro { max-width: 720px; margin: 0 auto; padding: 28px; }
.rules { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 16px 0; }
.rules > div { background: var(--bg); border-radius: 14px; padding: 12px; text-align: center; color: var(--mut); font-weight: 700; font-size: 14px; }
.rules b { display: block; font-family: var(--fh); font-size: 28px; color: var(--ink); }
.exam-bar { display: flex; align-items: center; gap: 12px; padding: 12px 18px; margin-bottom: 14px; position: sticky; top: 64px; z-index: 5; }
.exam-bar .timer { margin-left: auto; font-family: var(--fh); font-size: 24px; font-weight: 800; background: var(--ink); color: var(--y); border-radius: 12px; padding: 0 14px; }
.exam-bar .timer.low { background: var(--c); color: #fff; }
.exam-run { display: grid; grid-template-columns: minmax(0, 1fr) 240px; gap: 16px; }
.qnav { padding: 16px; align-self: start; position: sticky; top: 130px; }
.qdots { display: grid; grid-template-columns: repeat(5, 1fr); gap: 6px; }
.qdots button { aspect-ratio: 1; border-radius: 10px; border: 2px solid var(--line); background: var(--card); font-weight: 800; cursor: pointer; }
.qdots button.ans { background: var(--t); border-color: var(--t); color: #fff; }
.qdots button.cur { outline: 3px solid var(--c); }
@media (max-width: 860px) { .exam-run { grid-template-columns: 1fr; } .qnav { position: static; } .qdots { grid-template-columns: repeat(10, 1fr); } }
.result { max-width: 760px; margin: 0 auto; padding: 28px; text-align: center; }
.result .score { font-family: var(--fh); font-size: 84px; font-weight: 800; line-height: 1; color: var(--c); }
.review { text-align: left; margin-top: 18px; display: grid; gap: 10px; }
.review > div { background: var(--bg); border-radius: 14px; padding: 12px 14px; border-left: 6px solid var(--t); font-size: 15px; }
.review > div.x { border-color: var(--c); }
.review .qv { margin: 6px 0; transform: scale(.8); transform-origin: left top; }
.confetti { position: fixed; top: -12px; width: 10px; height: 14px; z-index: 90; animation: fall linear forwards; border-radius: 2px; }
@keyframes fall { to { transform: translateY(105vh) rotate(720deg); } }

/* ===== Beli & bayar ===== */
.buy { padding: 22px 0; }
.buygrid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.buyitem { cursor: pointer; display: block; }
.buyitem input { position: absolute; opacity: 0; pointer-events: none; }
.buyitem > span { display: flex; flex-direction: column; gap: 4px; padding: 16px; border-radius: 18px; border: 3px solid var(--line); background: var(--card); height: 100%; }
.buyitem input:checked + span { border-color: var(--c); background: var(--c-soft); }
.buyitem input:disabled + span { opacity: .6; cursor: default; }
.buyitem input:focus-visible + span { outline: 3px solid var(--b); }
.buyitem b { font-family: var(--fh); font-size: 20px; }
.buyitem .pr { font-family: var(--fh); font-size: 22px; color: var(--c); font-weight: 800; margin-top: auto; }
.buyitem small { color: var(--mut); font-weight: 700; }
.bundle > span { background: linear-gradient(120deg, var(--y-soft), var(--c-soft)); }
.buysum { position: sticky; bottom: 0; margin-top: 18px; padding: 14px 18px; display: flex; align-items: center; gap: 14px; flex-wrap: wrap; justify-content: space-between; z-index: 5; }
.buysum .tot { font-family: var(--fh); font-size: 28px; font-weight: 800; }
.pay { padding: 22px 0; }
.pay-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 16px; }
@media (max-width: 820px) { .pay-grid { grid-template-columns: 1fr; } }
.pay-amt { padding: 22px; }
.pay-amt .amt { font-family: var(--fh); font-size: 44px; font-weight: 800; line-height: 1.1; margin: 6px 0 10px; }
.pay-amt .amt .u { color: var(--c); background: var(--c-soft); border-radius: 8px; padding: 0 4px; }
.pay-methods { display: grid; gap: 12px; }
.pm { padding: 18px; }
.pm h3 { margin: 0 0 6px; }
.bank { display: flex; justify-content: space-between; align-items: center; gap: 10px; padding: 10px 0; border-top: 1px dashed var(--line); }
.bank .no { font-family: var(--mono); font-size: 20px; font-weight: 700; }
.qris { width: 220px; max-width: 100%; border-radius: 14px; border: 1px solid var(--line); background: #fff; }
.pay-confirm { padding: 20px; margin-top: 16px; }
.grid-cf { display: grid; grid-template-columns: 1fr 1fr; gap: 0 14px; }
@media (max-width: 620px) { .grid-cf { grid-template-columns: 1fr; } }

/* ===== Sertifikat ===== */
.cert-page { padding: 22px 0; }
.cert-list { display: grid; gap: 22px; }
.cert-item { padding: 18px; }
.cert-prev { width: 100%; height: auto; border-radius: 12px; box-shadow: var(--shadow); display: block; }
.cert-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 14px; }

/* ===== Profil ===== */
.prof { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; padding: 22px 0; }
@media (max-width: 820px) { .prof { grid-template-columns: 1fr; } }
.prof .card { padding: 22px; }
.kidrow { display: grid; grid-template-columns: 1fr 140px auto; gap: 8px; align-items: end; padding: 10px 0; border-top: 1px dashed var(--line); }
.kidrow .field { margin: 0; }
@media (max-width: 520px) { .kidrow { grid-template-columns: 1fr; } }
.empty { text-align: center; padding: 60px 16px; }

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; } }