/* SkorPlus member area — token BVI (light-locked) */
:root{
  --blue:#4338CA;          /* CTA/aksen */
  --navy:#1E1B4B;          /* bg gelap */
  --teal:#6366F1;          /* highlight */
  --surface:#F4F5FB;       /* bg section */
  --gold:#F59E0B; --gold-l:#FEF3E2;
  --white:#fff; --slate:#4F5A72; --faint:#8A93A6; --ink:#111827;
  --green:#16A34A; --green-l:#E7F6EC; --red:#DC2626; --red-l:#FBE9E9;
  --indigo:#4F46E5; --indigo-l:#EEF2FF; --indigo-l2:#E0E7FF; --line:#E6E8F2;
  --grad:linear-gradient(145deg,#4338CA,#6366F1);
  --radius:18px; --maxw:520px; --sh-sm:0 2px 8px rgba(30,27,75,.06);
  --fh:"Plus Jakarta Sans","Inter",system-ui,sans-serif; --fb:"Inter",system-ui,sans-serif;
  color-scheme:light;
}
*{box-sizing:border-box;margin:0;padding:0}
body{background:
    radial-gradient(760px 460px at 100% -8%, #E6EAFF 0%, rgba(230,234,255,0) 58%),
    radial-gradient(620px 460px at -8% 108%, #EDE9FE 0%, rgba(237,233,254,0) 52%),
    var(--surface);
  background-attachment:fixed;color:var(--ink);font-family:var(--fb);-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--fh);letter-spacing:-.02em}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
.tnum{font-variant-numeric:tabular-nums}
.ic-svg{width:18px;height:18px;flex:0 0 auto;display:inline-block;vertical-align:-3px}
:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:6px}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation-duration:.001ms!important}}
#app{max-width:var(--maxw);margin:0 auto;min-height:100vh;padding:0 16px 92px}
.spinner{width:26px;height:26px;border:3px solid var(--indigo-l2);border-top-color:var(--blue);border-radius:50%;animation:s .7s linear infinite;margin:60px auto}
@keyframes s{to{transform:rotate(360deg)}}
.hide{display:none!important}

/* AUTH (login email+key) */
.auth{min-height:100vh;display:flex;flex-direction:column;justify-content:center;max-width:400px;margin:0 auto;padding:0 4px}
.auth .brand{display:flex;justify-content:center;align-items:center;gap:10px;margin-bottom:6px}
.auth .lm-big{width:48px;height:48px}
.auth .wordmark{text-align:center;font-family:var(--fh);font-weight:800;font-size:26px;color:var(--navy);margin-bottom:4px}
.auth .wordmark span{color:var(--blue)}
.auth .tagline{text-align:center;color:var(--slate);font-size:13px;margin-bottom:20px;line-height:1.5}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 6px 20px rgba(30,27,75,.08)}
.field{display:block;margin-bottom:13px}
.field span{display:block;font-size:12.5px;font-weight:600;color:var(--navy);margin-bottom:6px}
.inp{width:100%;padding:14px;border:1.5px solid var(--line);border-radius:12px;font-size:15px;font-family:inherit;background:var(--surface)}
.inp:focus{outline:none;border-color:var(--blue);background:#fff}
.key-inp{text-transform:uppercase;letter-spacing:1px}
.msg{padding:11px 13px;border-radius:11px;font-size:13px;margin-bottom:12px;display:none}
.msg.err{background:var(--red-l);color:#9a1c1c;display:block}
.msg.ok{background:var(--green-l);color:#0f7a38;display:block}
.btn{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;background:var(--grad);color:#fff;font-family:var(--fh);font-weight:700;font-size:15px;padding:15px;border-radius:14px;box-shadow:0 8px 20px rgba(67,56,202,.28);transition:transform .12s ease,box-shadow .18s ease,filter .18s ease}
.btn .ic-svg{width:18px;height:18px}
.btn:active{transform:translateY(1px)}
.btn:not(:disabled):hover{box-shadow:0 12px 28px rgba(67,56,202,.34);filter:brightness(1.03)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn.ghost{background:#fff;color:var(--blue);border:1.5px solid var(--indigo-l2);box-shadow:none}
.btn.ghost:not(:disabled):hover{background:var(--indigo-l);filter:none;box-shadow:none}
.btn.gold{background:linear-gradient(145deg,#F59E0B,#ef8a08);box-shadow:0 8px 20px rgba(245,158,11,.3)}
.hintlink{text-align:center;font-size:11.5px;color:var(--faint);margin-top:14px}

/* appbar + nav */
.appbar{display:flex;align-items:center;gap:10px;padding:18px 2px 12px}
.brandbar{display:flex;align-items:center;gap:8px;font-family:var(--fh);font-weight:800;font-size:19px;color:var(--navy)}
.brandbar .mk{width:28px;height:28px;border-radius:8px;display:grid;place-items:center;background:var(--grad);color:#fff;font-weight:800;font-size:15px}
.brandbar .p{color:var(--blue)}
.pill{margin-left:auto;font-size:11.5px;font-weight:700;padding:6px 11px;border-radius:999px;background:var(--gold-l);color:#9A6100}
.eyebrow{font-size:11px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--blue)}
.muted{color:var(--slate)} .faintc{color:var(--faint)}
.sec-t{font-family:var(--fh);font-weight:700;font-size:16px;margin:22px 2px 10px;display:flex;align-items:center;gap:7px}
.sec-t .lk{margin-left:auto;font-size:12px;font-weight:600;color:var(--blue)}

.hero{background:var(--grad);color:#fff;border-radius:20px;padding:18px;box-shadow:0 6px 20px rgba(30,27,75,.12)}
.hero .lbl{font-size:11.5px;color:#CED2FA;font-weight:600}
.hero .score{font-family:var(--fh);font-weight:800;font-size:40px;line-height:1;margin:4px 0}
.hero .bar{height:8px;background:rgba(255,255,255,.25);border-radius:999px;overflow:hidden;margin-top:10px}
.hero .bar>i{display:block;height:100%;background:linear-gradient(90deg,#FBBF24,#F59E0B)}
.chip{display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.2);color:#fff;font-size:11px;font-weight:600;padding:4px 9px;border-radius:999px;margin-top:8px}

.paket{display:flex;align-items:center;gap:12px;padding:14px;margin-bottom:11px;transition:transform .14s ease,box-shadow .18s ease,border-color .18s ease}
.paket:not(.soon){cursor:pointer}
.paket:not(.soon):hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(30,27,75,.12);border-color:var(--indigo-l2)}
.paket .ic{width:44px;height:44px;border-radius:12px;flex:0 0 auto;display:grid;place-items:center;color:#fff;font-family:var(--fh);font-weight:800;background:var(--grad)}
.paket.soon .ic{background:linear-gradient(145deg,#9aa0bf,#b6bbd6)}
.paket .t{flex:1;min-width:0}.paket .t b{font-family:var(--fh);font-size:14.5px;display:block}.paket .t span{font-size:12px;color:var(--slate)}
.badge{font-size:10px;font-weight:700;padding:3px 8px;border-radius:999px;background:var(--green-l);color:var(--green)}
.badge.soon{background:#EEF0F6;color:#8a90a8}

/* quiz */
.qtop{display:flex;align-items:center;gap:10px;padding:14px 2px}
.qtop .back{font-size:24px;color:var(--slate)}
.qtimer{margin-left:auto;display:inline-flex;align-items:center;gap:6px;background:var(--indigo-l);color:var(--navy);font-weight:700;font-size:13px;padding:6px 11px;border-radius:999px}
.qtimer .ic-svg{width:15px;height:15px}
.qprog{height:6px;background:var(--indigo-l2);border-radius:999px;overflow:hidden;margin:0 2px 14px}
.qprog>i{display:block;height:100%;background:var(--grad);transition:width .3s}
.qmeta{font-size:11.5px;color:var(--blue);font-weight:700;text-transform:uppercase;letter-spacing:.04em;margin:0 2px 8px}
.qstem{font-family:var(--fh);font-weight:600;font-size:17px;line-height:1.45;margin:0 2px 16px}
/* passage bacaan literasi — reading block, NOT italic */
.psg{display:block;font-family:var(--fb);font-weight:400;font-style:normal;font-size:15.5px;line-height:1.75;color:var(--ink);background:#fff;border:1px solid var(--line);border-left:4px solid var(--indigo-l2);border-radius:12px;padding:14px 16px;margin:0 0 14px;box-shadow:var(--sh-sm)}
/* font-size control + scaling */
.qbar-r{display:flex;align-items:center;gap:8px}
.fs-ctl{display:inline-flex;border:1.5px solid var(--line);border-radius:11px;overflow:hidden;background:#fff}
.fs-ctl .fs-btn{padding:7px 12px;font-family:var(--fh);font-weight:800;color:var(--blue);line-height:1;transition:background .14s ease}
.fs-ctl .fs-btn.sm{font-size:12px}
.fs-ctl .fs-btn.lg{font-size:18px}
.fs-ctl .fs-btn:hover{background:var(--indigo-l)}
.fs-ctl .fs-btn+.fs-btn{border-left:1.5px solid var(--line)}
.qbody.fs-sm{--qfs:15px;--ofs:13.5px;--psgfs:14px}
.qbody.fs-md{--qfs:17px;--ofs:14.5px;--psgfs:15.5px}
.qbody.fs-lg{--qfs:20.5px;--ofs:16.5px;--psgfs:18px}
.qbody .qstem{font-size:var(--qfs)}
.qbody .psg{font-size:var(--psgfs)}
.qbody .opt{font-size:var(--ofs)}
.opt{display:flex;align-items:center;gap:12px;width:100%;text-align:left;background:#fff;border:1.5px solid var(--line);border-radius:14px;padding:14px;margin-bottom:10px;font-size:14.5px;box-shadow:0 1px 3px rgba(30,27,75,.06);transition:border-color .14s ease,background .14s ease,transform .1s ease}
.opt:not(.locked):hover{border-color:var(--indigo-l2);background:#FBFBFF}
.opt:not(.locked):active{transform:scale(.995)}
.opt .k{width:28px;height:28px;border-radius:8px;flex:0 0 auto;display:grid;place-items:center;font-weight:700;font-size:13px;background:var(--indigo-l);color:var(--blue)}
.opt.sel{border-color:var(--blue);background:var(--indigo-l)}.opt.sel .k{background:var(--blue);color:#fff}
.opt.correct{border-color:var(--green);background:var(--green-l)}.opt.correct .k{background:var(--green);color:#fff}
.opt.wrong{border-color:var(--red);background:var(--red-l)}.opt.wrong .k{background:var(--red);color:#fff}
.pemb{background:var(--indigo-l);border:1px solid var(--indigo-l2);border-radius:13px;padding:13px 14px;margin:2px 2px 14px;font-size:13px;line-height:1.55}
.pemb .h{font-weight:700;color:var(--navy);font-size:11.5px;text-transform:uppercase;letter-spacing:.05em;margin-bottom:5px}
.qfoot{position:sticky;bottom:78px;padding:10px 0;background:linear-gradient(0deg,var(--surface) 70%,transparent)}

.result{background:linear-gradient(150deg,#312E81,#4338CA);color:#fff;border-radius:20px;padding:22px 18px;text-align:center;box-shadow:0 6px 20px rgba(30,27,75,.12)}
.result .big{font-family:var(--fh);font-weight:800;font-size:50px;line-height:1;margin:6px 0 2px}
.result .tag{display:inline-block;margin-top:10px;background:rgba(255,255,255,.15);padding:6px 13px;border-radius:999px;font-size:12.5px;font-weight:600}
.abar{display:flex;align-items:center;gap:10px;margin:11px 2px}
.abar .nm{width:110px;flex:0 0 auto;font-size:12px;font-weight:600}
.abar .tr{flex:1;height:10px;background:#EDEFF7;border-radius:999px;overflow:hidden}.abar .tr>i{display:block;height:100%}
.abar .vl{width:52px;text-align:right;font-size:11.5px;font-weight:700;color:var(--slate)}
.rec{display:flex;gap:11px;background:var(--gold-l);border:1px solid #F6E2BC;border-radius:14px;padding:13px;margin-top:10px;font-size:12.5px;color:#8A5A00;line-height:1.5}
.card.pad{padding:14px 14px 8px}
.card.q{padding:14px;margin-bottom:10px}

.skor{display:flex;gap:12px;padding:15px;margin-bottom:11px}
.skor .lt{width:44px;height:44px;flex:0 0 auto;border-radius:12px;display:grid;place-items:center;color:#fff;font-family:var(--fh);font-weight:800;font-size:20px;background:var(--grad)}
.skor h4{font-size:15px;margin:0 0 1px}.skor .src{font-size:11px;color:var(--blue);font-weight:700;margin:0 0 5px}.skor p{margin:0;font-size:13px;color:var(--slate);line-height:1.5}
.mt{margin-top:14px}

.nav{position:fixed;bottom:0;left:0;right:0;max-width:var(--maxw);margin:0 auto;height:72px;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-top:1px solid var(--line);display:flex;padding:8px 6px calc(8px + env(safe-area-inset-bottom));z-index:40}
.side-brand,.side-foot{display:none}
.side-items{display:flex;flex:1}
.nav button{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;color:var(--faint);font-size:10.5px;font-weight:600;transition:color .15s ease}
.nav button .ic-svg{width:24px;height:24px}
.nav button.on{color:var(--blue)}

/* ===== navigator soal (mode ujian) ===== */
.qbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;margin:0 2px 12px}
.qmetatop{font-size:11.5px;color:var(--blue);font-weight:700;text-transform:uppercase;letter-spacing:.04em;margin:2px 2px 8px}
.navbtn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:#fff;border:1.5px solid var(--line);border-radius:11px;padding:10px 12px;font-family:var(--fh);font-weight:700;font-size:13px;color:var(--blue);transition:background .14s ease,border-color .14s ease}
.navbtn .ic-svg{width:15px;height:15px}
.navbtn:not(:disabled):hover{background:var(--indigo-l);border-color:var(--indigo-l2)}
.navbtn:disabled{opacity:.4;cursor:not-allowed}
.navbtn.on{background:var(--indigo-l);border-color:var(--indigo-l2)}
.navbtn.flagon{background:var(--gold-l);border-color:#F6E2BC;color:#9A6100}
.qnav{display:flex;gap:8px;margin-top:6px}
.qnav .navbtn{flex:1;text-align:center}
.btn.jawab{margin-top:12px;font-size:16px;padding:16px}
.btn.jawab.skip{background:#fff;color:var(--slate);border:1.5px solid var(--line);box-shadow:none}
.btn.ghost.finishall{margin-top:9px;font-size:13px;padding:12px;color:var(--slate);border-color:var(--line)}
/* mode chooser */
.card.mode{display:flex;align-items:center;gap:14px;width:100%;text-align:left;padding:16px;margin-bottom:12px;border:1.5px solid var(--line);transition:transform .14s ease,box-shadow .18s ease,border-color .18s ease}
.card.mode:active{transform:translateY(1px)}
.card.mode:hover{border-color:var(--blue);box-shadow:0 12px 26px rgba(67,56,202,.14);transform:translateY(-2px)}
.card.mode .micon{width:46px;height:46px;flex:0 0 auto;border-radius:13px;display:grid;place-items:center}
.card.mode .micon .ic-svg{width:24px;height:24px}
.card.mode .micon.lat{background:var(--indigo-l);color:var(--blue)}
.card.mode .micon.uji{background:var(--gold-l);color:#B4700A}
.card.mode .mtx{flex:1;min-width:0}
.card.mode .mtx b{display:block;font-family:var(--fh);font-size:15.5px;margin-bottom:3px}
.card.mode .mtx span{display:block;font-size:12.5px;color:var(--slate);line-height:1.45}
.card.mode .marr{flex:0 0 auto;font-size:22px;color:var(--blue);font-weight:700}
.qtimer.lat{color:var(--blue)}
/* latihan reveal */
.opt.correct{border-color:var(--green);background:#ECFDF3}.opt.correct .k{background:var(--green);color:#fff}
.opt.wrong{border-color:var(--red);background:#FEF2F2}.opt.wrong .k{background:var(--red);color:#fff}
.opt.locked{cursor:default}
.expl{margin:2px 2px 8px;padding:13px 14px;border-radius:14px;border:1px solid var(--line);background:#fff;box-shadow:var(--sh-sm)}
.expl.ok{border-left:4px solid var(--green)}
.expl.no{border-left:4px solid var(--red)}
.expl .eh{font-family:var(--fh);font-weight:700;font-size:13px;margin-bottom:6px;color:var(--ink)}
.expl .eh .ic-svg{width:15px;height:15px;vertical-align:-3px;margin-right:2px}
.expl.ok .eh{color:#067647}.expl.no .eh{color:#B42318}
.expl .eb{font-size:13px;color:var(--slate);line-height:1.55}
.palette{display:grid;grid-template-columns:repeat(8,1fr);gap:7px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:12px;margin:0 2px 14px;box-shadow:var(--sh-sm);max-height:240px;overflow-y:auto}
.pcell{aspect-ratio:1;border:1.5px solid var(--line);border-radius:9px;background:#fff;font-family:var(--fh);font-weight:700;font-size:12px;color:var(--slate);position:relative;display:flex;align-items:center;justify-content:center;transition:border-color .12s ease,transform .1s ease}
.pcell:hover{border-color:var(--teal);transform:scale(1.05)}
.pcell.done{background:var(--indigo);border-color:var(--indigo);color:#fff}
.pcell.flag{background:var(--gold);border-color:var(--gold);color:#fff}
.pcell.cur{outline:3px solid var(--teal);outline-offset:1px;border-color:var(--teal);color:var(--blue)}
.pcell i{position:absolute;top:-7px;right:-5px;font-size:9px;font-style:normal}
.pal-legend{grid-column:1/-1;display:flex;gap:14px;font-size:11px;color:var(--slate);margin-top:6px}
.pal-legend b{display:inline-block;width:12px;height:12px;border-radius:4px;vertical-align:-2px;margin-right:4px}
.pal-legend b.done{background:var(--indigo)}
.pal-legend b.flag{background:var(--gold)}
.pal-legend b.empty{background:#fff;border:1.5px solid var(--line)}

/* ============ DESKTOP APP-SHELL (≥900px) ============ */
@media (min-width:900px){
  body:not(.noside){padding-left:252px}
  /* sidebar */
  .nav:not(.hide){position:fixed;top:0;left:0;bottom:0;right:auto;width:252px;max-width:none;height:100vh;margin:0;flex-direction:column;align-items:stretch;gap:6px;border-top:none;border-right:1px solid var(--line);background:#fff;backdrop-filter:none;padding:22px 16px}
  .side-brand{display:flex;align-items:center;gap:10px;padding:2px 8px 20px;font-family:var(--fh);font-weight:800;font-size:20px;color:var(--navy)}
  .side-brand .mk{width:32px;height:32px;border-radius:9px;display:grid;place-items:center;background:var(--grad);color:#fff;font-weight:800;font-size:16px}
  .side-brand .wm b{color:var(--blue);font-weight:800}
  .side-items{display:flex;flex-direction:column;flex:0 0 auto;gap:4px}
  .nav:not(.hide) button{flex:0 0 auto;flex-direction:row;justify-content:flex-start;gap:12px;padding:11px 12px;border-radius:12px;font-size:14.5px;font-weight:600;color:var(--slate);transition:background .14s ease,color .14s ease}
  .nav:not(.hide) button .ic-svg{width:20px;height:20px}
  .nav:not(.hide) button:hover{background:var(--surface);color:var(--navy)}
  .nav:not(.hide) button.on{background:var(--indigo-l);color:var(--blue)}
  .side-foot{display:flex;flex-direction:column;gap:10px;margin-top:auto;padding:14px 8px 2px;border-top:1px solid var(--line)}
  .side-foot .pill{margin:0;align-self:flex-start}
  .side-logout{display:flex;align-items:center;gap:10px;color:var(--slate);font-size:14px;font-weight:600;padding:9px 10px;border-radius:10px;transition:background .14s ease,color .14s ease}
  .side-logout .ic-svg{width:18px;height:18px}
  .side-logout:hover{color:var(--red);background:var(--red-l)}
  /* content region */
  #app{max-width:860px;margin:0 auto;padding:34px 32px 64px}
  .appbar{display:none}
  .only-mobile{display:none}
  h2{font-size:26px}
  .hero{padding:24px 26px}
  .hero .score{font-size:48px}
  /* multi-column lists */
  .pgrid,.mgrid,.mode-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
  .pgrid .paket,.mgrid .skor{margin-bottom:0;height:100%}
  .mode-grid .card.mode{margin-bottom:0;flex-direction:column;align-items:flex-start;gap:12px}
  .mode-grid .card.mode .marr{display:none}
  .mode-grid .card.mode .micon{width:52px;height:52px}
  /* quiz gets a comfortable reading width, palette a touch wider */
  .palette{grid-template-columns:repeat(10,1fr)}
}
@media (min-width:1200px){
  #app{max-width:920px}
}

/* ============ MATERI (interaktif) ============ */
.ic-svg.arrow{width:20px;height:20px;color:var(--blue);flex:0 0 auto}
.miniprog{height:5px;background:var(--indigo-l2);border-radius:999px;overflow:hidden;margin-top:7px;max-width:180px}
.miniprog>i{display:block;height:100%;background:var(--grad)}
.mlvl{flex:0 0 auto;font-size:10px;font-weight:800;padding:4px 9px;border-radius:999px;text-transform:uppercase;letter-spacing:.03em}
.mlvl.b0{background:#EEF0F6;color:#8a90a8}
.mlvl.b1{background:var(--indigo-l);color:var(--blue)}
.mlvl.b2{background:#E0E7FF;color:#3730A3}
.mlvl.b3{background:var(--gold-l);color:#9A6100}
.mlvl.b4{background:var(--green-l);color:#0f7a38}
/* stepper */
.msteps{display:flex;gap:6px;margin:2px 2px 16px}
.mstep{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px;font-family:var(--fh);font-weight:700;font-size:11px;color:var(--faint);border-top:3px solid var(--line);padding-top:8px}
.mstep span{width:22px;height:22px;border-radius:50%;display:grid;place-items:center;background:var(--line);color:#fff;font-size:11px}
.mstep.on{color:var(--blue);border-top-color:var(--blue)}
.mstep.on span{background:var(--blue)}
.mstep.past{color:var(--green);border-top-color:var(--green)}
.mstep.past span{background:var(--green)}
/* lead + skor tag */
.mlead{margin:0 2px 14px}
.mlead p{font-size:13.5px;color:var(--slate);line-height:1.5;margin-top:8px}
.skortag{display:inline-block;font-family:var(--fh);font-weight:800;font-size:11px;letter-spacing:.04em;padding:5px 11px;border-radius:999px}
.skortag.s{background:var(--indigo-l);color:var(--blue)}
.skortag.k{background:#E0E7FF;color:#3730A3}
.skortag.r{background:var(--gold-l);color:#9A6100}
/* konsep typography */
.materi-konsep{font-size:14.5px;line-height:1.6;color:var(--ink)}
.materi-konsep h5{font-family:var(--fh);font-size:14px;color:var(--navy);margin:16px 2px 8px}
.materi-konsep ul,.materi-konsep ol{margin:0 2px 12px;padding-left:22px}
.materi-konsep li{margin-bottom:6px}
.materi-konsep b{color:var(--navy)}
.materi-konsep i{font-style:italic}
.materi-konsep .tip{display:flex;gap:9px;background:var(--gold-l);border:1px solid #F6E2BC;border-radius:12px;padding:11px 13px;margin:12px 2px 4px;font-size:12.5px;color:#8A5A00;line-height:1.5}
.materi-konsep .tip::before{content:"💡";flex:0 0 auto}
.qbody .materi-konsep{font-size:var(--qfs)}
/* feynman textarea */
.feyn{width:100%;min-height:120px;resize:vertical;line-height:1.55;padding:14px;margin-bottom:12px}
.poinlist{margin:2px 0 0;padding-left:20px}.poinlist li{margin-bottom:5px}
/* flashcard */
.flashcard{perspective:1200px;margin:0 2px 4px;cursor:pointer;height:220px}
.fc-inner{position:relative;width:100%;height:100%;transition:transform .5s cubic-bezier(.4,.2,.2,1);transform-style:preserve-3d}
.flashcard.flip .fc-inner{transform:rotateY(180deg)}
.fc-face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:18px;padding:22px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;gap:10px;box-shadow:0 8px 24px rgba(30,27,75,.12)}
.fc-front{background:#fff;border:1.5px solid var(--line);color:var(--ink);font-family:var(--fh);font-weight:700;font-size:17px}
.fc-back{background:var(--grad);color:#fff;transform:rotateY(180deg);font-size:15px;line-height:1.5}
.fc-tag{font-size:10px;font-weight:800;letter-spacing:.12em;opacity:.75}
.fc-front .fc-tag{color:var(--blue)}
.fc-hint{font-size:11px;font-weight:600;color:var(--faint);font-family:var(--fb)}
.donerow{display:flex;align-items:center;justify-content:space-between;padding:8px 2px;font-size:13.5px;color:var(--slate);font-weight:600}
.donerow+.donerow{border-top:1px solid var(--line)}
.hots-chip{display:inline-block;background:linear-gradient(145deg,#F59E0B,#ef8a08);color:#fff;font-size:10px;font-weight:800;letter-spacing:.04em;padding:3px 8px;border-radius:999px;margin-left:6px;vertical-align:1px;text-transform:none}
/* deepen: worked example + common mistakes (dalam konsep) */
.materi-konsep .worked{background:var(--indigo-l);border:1px solid var(--indigo-l2);border-radius:12px;padding:12px 14px;margin:0 0 6px;font-size:13.5px;line-height:1.55}
.materi-konsep .worked p{margin:0 0 6px}
.materi-konsep .worked .wj{margin:0;color:#0f7a38}
.materi-konsep .worked b{color:var(--navy)}
.materi-konsep ul.salah{margin:0 0 6px;padding-left:20px}
.materi-konsep ul.salah li{margin-bottom:5px;color:var(--slate)}
.materi-konsep ul.salah li::marker{content:"✕  ";color:var(--red);font-weight:700}