/* Landing v4 "Dunia Si Tunas" (5 Okt 2026, mockup/landing-v4 diluluskan Taufik). Untuk /, /sedia-tahun-1/, /math-sains/.
   Rupa sama dengan app v4: kertas krim, Baloo 2 + Lexend, butang "batu sungai", App #2 = Arena malam (biru malam + kunyit).
   Dimuat SELEPAS v2.css (borang senarai menunggu, butang WhatsApp, .b3 kekal dari v2). Mudah alih dahulu; desktop ≥ 960px.
   Gerakan: kelas .rv → .in (IntersectionObserver), --e / --x = kemajuan skrol (landing4.js). html.kurang-gerak = statik.
   Nama kelas yang bertembung dengan v2.css ditukar: .kotak4 (bukan .kotak4), .label4 (bukan .label4), .rosak4 (bukan .rosak4). */
:root {
  --kertas: #FFF7EA; --kertas-2: #F6EBD6; --kertas-3: #EADBC0;
  --dakwat: #1E3A2C; --dakwat-2: #56695D; --dakwat-3: #8C9A90;
  --tunas: #2EBD59; --tunas-gelap: #1E9A47; --tunas-muda: #DDF5E3;
  --kunyit: #FFB627; --kunyit-gelap: #DB8D06; --kunyit-muda: #FFF0CC;
  --oren: #FF8A3D; --oren-gelap: #D9661A; --biru: #2B9CF2; --biru-gelap: #1C78C4;
  --m0: #0C162C; --m1: #13203D; --m2: #1C2D55; --m3: #2A3F72; --m-ink2: #B4C0DC;
  --tajuk: "Baloo 2", "Lexend", system-ui, sans-serif; --font: "Lexend", system-ui, -apple-system, "Segoe UI", sans-serif;
  --pegas: cubic-bezier(.34, 1.56, .64, 1); --lembut: cubic-bezier(.22, 1, .36, 1);
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: clip; }
body.l4 { margin: 0; background: var(--kertas); color: var(--dakwat); font: 500 16px/1.55 var(--font); overflow-x: clip; }
.l4 img { max-width: 100%; height: auto; }
.l4 [hidden] { display: none !important; }
:where(.l4) a { color: inherit; }
.l4 h1, .l4 h2, .l4 h3 { font-family: var(--tajuk); font-weight: 800; line-height: 1.08; letter-spacing: -.01em; margin: 0; }
.w { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 20px; }
.link { color: var(--tunas-gelap); font-weight: 700; text-decoration: underline; text-decoration-thickness: 2px; text-underline-offset: 3px; }

/* ---------- Butang batu sungai ---------- */
.b4 { --c: var(--tunas); --cd: var(--tunas-gelap); --t: #fff; display: inline-flex; align-items: center; justify-content: center; gap: 10px; min-height: 56px; padding: 12px 26px;
  border: 0; border-radius: 999px; background: var(--c); color: var(--t); font: 800 18px/1 var(--tajuk); letter-spacing: .04em; text-transform: uppercase; text-decoration: none; cursor: pointer;
  box-shadow: inset 0 3px 0 rgba(255, 255, 255, .28), 0 5px 0 var(--cd), 0 12px 20px -10px var(--cd); transition: transform .15s, box-shadow .15s; }
.b4:hover { transform: translateY(-2px); box-shadow: inset 0 3px 0 rgba(255, 255, 255, .28), 0 7px 0 var(--cd), 0 16px 24px -10px var(--cd); }
.b4:active { transform: translateY(4px); box-shadow: inset 0 3px 0 rgba(255, 255, 255, .28), 0 1px 0 var(--cd); }
.b4.kunyit { --c: var(--kunyit); --cd: var(--kunyit-gelap); --t: #4A2E00; }
.b4.putih { --c: #fff; --cd: var(--kertas-3); --t: var(--tunas-gelap); }
.b4.malam { --c: var(--m3); --cd: var(--m0); --t: #fff; }
.b4.sm { min-height: 42px; padding: 8px 16px; font-size: 14px; }

/* ---------- Nav ---------- */
.nav4 { position: fixed; z-index: 40; top: 0; left: 0; right: 0; padding: max(10px, env(safe-area-inset-top)) 0 10px; transition: background .3s, box-shadow .3s, padding .3s; }
.nav4 .w { display: flex; align-items: center; gap: 10px; }
.nav4 .brand { display: flex; align-items: center; gap: 8px; font: 800 21px/1 var(--tajuk); text-decoration: none; color: var(--dakwat); margin-right: auto;
  background: rgba(255, 255, 255, .92); padding: 5px 14px 5px 5px; border-radius: 999px; box-shadow: 0 2px 0 rgba(30, 58, 44, .12); }
.nav4 .brand img { width: 32px; height: 32px; }
.nav4 .login { font: 800 14px/1 var(--tajuk); letter-spacing: .06em; text-transform: uppercase; text-decoration: none; color: var(--dakwat); background: rgba(255, 255, 255, .92); padding: 11px 16px; border-radius: 999px; box-shadow: 0 2px 0 rgba(30, 58, 44, .12); }
.nav4 .b4 { display: none; }
.nav4.solid { background: rgba(255, 247, 234, .9); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: 0 1px 0 var(--kertas-3); padding-bottom: 8px; }
.nav4.solid .brand, .nav4.solid .login { box-shadow: none; background: transparent; }
.nav4.gelap { background: rgba(19, 32, 61, .88); box-shadow: 0 1px 0 var(--m3); }
.nav4.gelap .brand, .nav4.gelap .login { color: #fff; background: rgba(255, 255, 255, .12); box-shadow: none; }

/* ---------- HERO: adegan taman (sama dengan laman utama app) + helaian krim ---------- */
.h4 { position: relative; }
.h4 > .w { padding: 0; }
.h4-scene { position: relative; height: clamp(250px, 41svh, 390px); overflow: hidden; background: #8FD3FF; }
.h4-scene .klip { position: absolute; inset: 0; overflow: hidden; }
.ltn { display: block; position: relative; }
.ltn .tunas { width: 100%; }
.h4-bg { position: absolute; inset: -6% 0 0; background: url(/assets/img/latar/taman.webp) center 62% / cover no-repeat; transform: translate3d(0, calc(var(--sy, 0) * .3px), 0) scale(1.06); transform-origin: 50% 80%; animation: zumMasuk 1.4s var(--lembut) both; }
@keyframes zumMasuk { from { scale: 1.12; filter: saturate(.6) brightness(1.1); } }
.awan { position: absolute; width: 120px; height: auto; opacity: .95; animation: hanyut 38s linear infinite; }
.awan.a1 { top: 9%; left: -30%; } .awan.a2 { top: 22%; left: -40%; width: 80px; animation-duration: 52s; animation-delay: -20s; opacity: .8; }
@keyframes hanyut { to { transform: translateX(170vw); } }
.h4-tn { position: absolute; left: 50%; bottom: 7%; width: clamp(120px, 34vw, 160px); translate: -50% 0; z-index: 3; cursor: pointer; }
.h4-tn > img, .h4-tn > .ltn { width: 100%; display: block; }
.kata4 { position: absolute; left: 50%; bottom: calc(100% + 4px); translate: -50% 0; background: #fff; color: var(--dakwat); border-radius: 18px; padding: 8px 15px; white-space: nowrap;
  font: 800 17px/1.2 var(--tajuk); box-shadow: 0 4px 0 rgba(30, 58, 44, .14); opacity: 0; transform: scale(.5) translateY(10px); transform-origin: 50% 100%; transition: opacity .2s, transform .35s var(--pegas); pointer-events: none; }
.kata4::after { content: ""; position: absolute; left: 50%; bottom: -6px; margin-left: -7px; width: 14px; height: 14px; background: #fff; transform: rotate(45deg); border-radius: 2px; }
.kata4.on { opacity: 1; transform: none; }
/* barang terapung: berenang perlahan, keluar dari bingkai untuk kedalaman */
.apung { position: absolute; z-index: 2; width: var(--s, 54px); animation: apung 4.2s ease-in-out infinite alternate; animation-delay: var(--dl, 0s); filter: drop-shadow(0 6px 8px rgba(30, 58, 44, .22)); pointer-events: none; }
.apung img { width: 100%; display: block; animation: muncul4 .7s var(--pegas) both; animation-delay: calc(var(--dl, 0s) * -1 + .9s); }
@keyframes apung { from { transform: translateY(-6px) rotate(-6deg); } to { transform: translateY(8px) rotate(6deg); } }
@keyframes muncul4 { from { transform: scale(0) rotate(-30deg); opacity: 0; } }
.kilau { position: absolute; width: 18px; height: 18px; color: #fff; animation: kelip 2.4s ease-in-out infinite; animation-delay: var(--dl, 0s); z-index: 2; pointer-events: none; }
@keyframes kelip { 0%, 100% { transform: scale(.2) rotate(0); opacity: 0; } 50% { transform: scale(1) rotate(90deg); opacity: 1; } }
/* rama-rama terbang melintas */
.rama { position: absolute; z-index: 4; width: 46px; top: 30%; left: 0; animation: terbang 14s linear infinite; pointer-events: none; }
.rama img { width: 100%; display: block; animation: kepak .22s ease-in-out infinite alternate; transform-origin: 50% 50%; }
@keyframes kepak { to { transform: scaleX(.62); } }
@keyframes terbang {
  0% { transform: translate(-60px, 40px) rotate(8deg); } 20% { transform: translate(20vw, -10px) rotate(-6deg); } 40% { transform: translate(40vw, 30px) rotate(10deg); }
  60% { transform: translate(62vw, -20px) rotate(-8deg); } 80% { transform: translate(84vw, 20px) rotate(6deg); } 100% { transform: translate(110vw, -30px) rotate(0); } }

.h4-sheet { position: relative; z-index: 5; margin-top: -30px; background: var(--kertas); border-radius: 30px 30px 0 0; padding: 12px 20px 30px; box-shadow: 0 -10px 26px -16px rgba(30, 58, 44, .4); animation: naik4 .9s var(--pegas) .15s both; }
@keyframes naik4 { from { transform: translateY(70px); } }
.h4-sheet .handle { width: 42px; height: 5px; border-radius: 9px; background: var(--kertas-3); margin: 0 auto 14px; }
.labels4 { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.label4 { font: 700 12px/1 var(--font); letter-spacing: .08em; text-transform: uppercase; padding: 7px 11px; border-radius: 999px; background: var(--tunas-muda); color: var(--tunas-gelap); }
.label4.k { background: var(--kunyit-muda); color: #8A5A00; }
.h4 h1 { font-size: clamp(34px, 9.6vw, 62px); }
.h4 h1 em { font-style: normal; color: var(--tunas-gelap); position: relative; white-space: nowrap; }
.h4 h1 em::after { content: ""; position: absolute; left: -.05em; right: -.05em; bottom: .14em; height: .26em; background: var(--kunyit); opacity: .45; border-radius: 9px; z-index: -1; transform-origin: left; animation: garis .7s var(--lembut) 1.1s both; }
@keyframes garis { from { transform: scaleX(0); } }
.kt { display: inline-block; animation: kata .6s var(--pegas) both; animation-delay: calc(.35s + var(--i) * .07s); }
@keyframes kata { from { opacity: 0; transform: translateY(.5em) scale(.85); } }
.lsub { font-size: 16.5px; color: var(--dakwat-2); margin: 12px 0 16px; max-width: 34em; }

/* kad pilih umur */
.umur { display: grid; gap: 12px; }
.ukad { --c: var(--tunas); --cd: var(--tunas-gelap); position: relative; display: flex; align-items: center; gap: 12px; padding: 12px 14px 12px 12px; border-radius: 24px; text-decoration: none; color: #fff; overflow: hidden;
  background: var(--c); box-shadow: inset 0 3px 0 rgba(255, 255, 255, .25), 0 6px 0 var(--cd), 0 16px 26px -14px var(--cd); transition: transform .18s var(--pegas), box-shadow .18s;
  animation: kad4 .7s var(--pegas) both; animation-delay: calc(.75s + var(--i) * .12s); }
@keyframes kad4 { from { opacity: 0; transform: translateY(30px) scale(.94); } }
.ukad:hover { transform: translateY(-3px) rotate(-.4deg); }
.ukad:active { transform: translateY(5px); box-shadow: inset 0 3px 0 rgba(255, 255, 255, .25), 0 1px 0 var(--cd); }
.ukad.malam { --c: var(--m2); --cd: var(--m0); background: radial-gradient(120% 140% at 0% 0%, #2A3F72 0%, #1C2D55 45%, #13203D 100%); }
.ukad .ik { position: relative; width: 74px; height: 74px; flex: none; border-radius: 20px; overflow: hidden; background: url(/assets/img/latar/taman.webp) center 66% / 220% no-repeat; }
.ukad.malam .ik { background-image: url(/assets/img/latar/arena.webp); background-position: center 52%; }
.ukad .ik > img, .ukad .ik > .ltn { position: absolute; left: 50%; bottom: -4px; width: 64px; translate: -50% 0; }
.ukad .tx { flex: 1; min-width: 0; }
.ukad small { display: block; font: 700 11.5px/1.2 var(--font); letter-spacing: .1em; text-transform: uppercase; opacity: .85; }
.ukad b { display: block; font: 800 24px/1.05 var(--tajuk); margin: 3px 0 2px; }
.ukad.malam b { color: var(--kunyit); }
.ukad em { display: block; font: 500 13.5px/1.35 var(--font); font-style: normal; opacity: .92; }
.ukad .go { width: 42px; height: 42px; border-radius: 50%; background: #fff; color: var(--cd); display: grid; place-items: center; flex: none; transition: transform .25s var(--pegas); }
.ukad.malam .go { background: var(--kunyit); color: #4A2E00; }
.ukad:hover .go { transform: translateX(4px); }
.ukad::before { content: ""; position: absolute; top: -40%; left: -30%; width: 40%; height: 180%; background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .28), transparent); transform: rotate(18deg) translateX(-200%); animation: kilat 5s ease-in-out 2.2s infinite; }
@keyframes kilat { 0%, 70% { transform: rotate(18deg) translateX(-200%); } 100% { transform: rotate(18deg) translateX(520%); } }
.note { margin: 14px 0 0; font-size: 14px; color: var(--dakwat-2); }

/* ---------- Jalur bukti: kad statistik (gaya skrin Misi selesai) ---------- */
.bukti { padding: 18px 0 8px; }
.stat4 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.sk { --c: var(--tunas); --cd: var(--tunas-gelap); border-radius: 20px; background: var(--c); padding: 0 5px 5px; box-shadow: 0 5px 0 var(--cd); text-align: center; }
.sk .lb { display: block; font: 800 11.5px/1 var(--tajuk); letter-spacing: .1em; color: #fff; padding: 9px 4px 7px; text-transform: uppercase; }
.sk .bx { background: #fff; border-radius: 15px; padding: 10px 8px 9px; }
.sk b { display: block; font: 800 40px/1 var(--tajuk); color: var(--cd); font-variant-numeric: tabular-nums; }
.sk span { display: block; font-size: 12.5px; line-height: 1.3; color: var(--dakwat-2); margin-top: 4px; }
.sk.m { --c: var(--m2); --cd: var(--m0); } .sk.m b { color: var(--m2); }
.sk.b { --c: var(--biru); --cd: var(--biru-gelap); }
.sk.o { --c: var(--oren); --cd: var(--oren-gelap); }
.ssm { display: flex; align-items: center; gap: 10px; margin: 16px 0 0; font-size: 13px; color: var(--dakwat-2); }
.ssm i { font-style: normal; font: 800 11px/1 var(--tajuk); letter-spacing: .06em; background: #fff; border: 2px solid var(--kertas-3); border-radius: 10px; padding: 7px 9px; color: var(--dakwat); flex: none; }

/* ---------- Bahagian umum ---------- */
.sek { padding: 64px 0; position: relative; }
.kicker { display: inline-block; font: 800 12.5px/1 var(--tajuk); letter-spacing: .12em; text-transform: uppercase; padding: 8px 12px; border-radius: 999px; background: var(--tunas-muda); color: var(--tunas-gelap); margin-bottom: 12px; }
.kicker.k { background: rgba(255, 182, 39, .16); color: var(--kunyit); }
.sek h2 { font-size: clamp(32px, 8.4vw, 52px); }
.lede { font-size: 17px; color: var(--dakwat-2); margin: 12px 0 18px; max-width: 32em; }
.ticks { list-style: none; padding: 0; margin: 0 0 22px; display: grid; gap: 10px; }
.ticks li { display: flex; gap: 10px; align-items: flex-start; font-weight: 600; }
.ticks li svg { flex: none; margin-top: 1px; }
.tengah { text-align: center; } .tengah .lede { margin-left: auto; margin-right: auto; }

/* muncul ikut skrol */
.rv { opacity: 0; transform: translateY(34px) scale(.98); transition: opacity .7s var(--lembut), transform .9s var(--pegas); transition-delay: calc(var(--d, 0) * 90ms); }
.rv.in { opacity: 1; transform: none; }
.rv.pop { transform: scale(.6) rotate(-8deg); } .rv.pop.in { transform: none; }

/* ---------- Telefon ---------- */
.fon { position: relative; width: var(--fw, 240px); padding: calc(var(--fw, 240px) * .032); border-radius: calc(var(--fw, 240px) * .16); background: #15231B;
  box-shadow: 0 34px 60px -24px rgba(20, 40, 30, .55), inset 0 0 0 1.5px rgba(255, 255, 255, .12); }
.fon img { display: block; width: 100%; aspect-ratio: 600 / 1299; object-fit: cover; border-radius: calc(var(--fw, 240px) * .13); background: var(--kertas-2); }
.fon.gelap { background: #070D1C; box-shadow: 0 34px 70px -24px rgba(0, 0, 0, .75), inset 0 0 0 1.5px rgba(255, 255, 255, .14); }

/* kipas 3 telefon (App #1): terbuka ikut skrol, --e 0 → 1 */
.kipas { position: relative; width: 100%; height: calc(var(--fw) * 2.2); --fw: min(58vw, 250px); margin: 10px auto 0; max-width: 520px; }
.kipas .fon { position: absolute; left: 50%; top: 0; translate: -50% 0; transition: transform .1s linear; }
.kipas .fon.t { z-index: 3; }
.kipas .fon.k1 { z-index: 1; --fw: min(48vw, 210px); top: 6%; transform: translateX(calc(var(--buka, -40%) * var(--e, 0))) rotate(calc(-9deg * var(--e, 0))); }
.kipas .fon.k2 { z-index: 2; --fw: min(48vw, 210px); top: 6%; transform: translateX(calc(var(--buka, -40%) * -1 * var(--e, 0))) rotate(calc(9deg * var(--e, 0))); }
.kipas .apung { z-index: 4; }

/* ---------- Dunia siang (App #1) ---------- */
.siang { background: linear-gradient(180deg, var(--kertas) 0%, #FFF3DC 55%, #E2F1FE 100%); padding-bottom: 40px; }
.siang .split { display: grid; gap: 30px; }

/* rel skrin: leret di telefon, grid di desktop */
.rel-t { font: 800 22px/1.15 var(--tajuk); margin: 46px 0 14px; }
.rel { display: grid; grid-auto-flow: column; grid-auto-columns: 56vw; gap: 14px; overflow-x: auto; scroll-snap-type: x mandatory; padding: 6px 20px 24px; margin: 0 -20px; scrollbar-width: none; overscroll-behavior-x: contain; }
.rel::-webkit-scrollbar { display: none; }
.rel figure { margin: 0; scroll-snap-align: center; --fw: 100%; }
.rel .fon { width: 100%; padding: 6px; border-radius: 30px; } .rel .fon img { border-radius: 24px; }
.rel figcaption { margin-top: 12px; }
.rel figcaption b { display: block; font: 800 18px/1.15 var(--tajuk); }
.rel figcaption span { font-size: 14px; color: var(--dakwat-2); }
.rel .no { display: inline-grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--tunas); color: #fff; font: 800 14px/1 var(--tajuk); margin-right: 6px; vertical-align: 2px; }
.leret { display: flex; align-items: center; justify-content: center; gap: 6px; font-size: 13px; color: var(--dakwat-3); margin-top: -8px; }
.leret i { width: 22px; height: 6px; border-radius: 9px; background: var(--kertas-3); } .leret i.on { background: var(--tunas); width: 34px; }

/* ---------- Senja: siang → malam, Si Tunas berjalan ---------- */
.senja { position: relative; height: 430px; overflow: hidden; background: linear-gradient(180deg, #E2F1FE 0%, #FFD9A8 26%, #FF9E6B 44%, #7A5BA8 66%, #2A3F72 84%, var(--m1) 100%); }
.senja .matahari { position: absolute; left: 18%; top: 22%; width: 120px; height: 120px; border-radius: 50%; background: radial-gradient(circle, #FFE58A 0 45%, #FFC94A 46% 60%, rgba(255, 201, 74, 0) 61%);
  box-shadow: 0 0 80px 30px rgba(255, 200, 90, .45); transform: translateY(calc(var(--e, 0) * 220px)); opacity: calc(1 - var(--e, 0) * .7); }
.senja .bulan { position: absolute; right: 16%; top: 12%; width: 70px; height: 70px; border-radius: 50%; background: #FFF4D0; box-shadow: inset -14px -6px 0 #F2D78A, 0 0 40px 10px rgba(255, 244, 208, .35);
  transform: translateY(calc((1 - var(--e, 0)) * 240px)); opacity: var(--e, 0); }
.bintang { position: absolute; inset: 0 0 30% 0; opacity: calc(var(--e, 0) * 1.2 - .2); pointer-events: none; }
.bintang i { position: absolute; width: 4px; height: 4px; border-radius: 50%; background: #fff; animation: kelip2 2.6s ease-in-out infinite; animation-delay: var(--dl); box-shadow: 0 0 6px #fff; }
@keyframes kelip2 { 0%, 100% { opacity: .3; transform: scale(.6); } 50% { opacity: 1; transform: scale(1.2); } }
.senja .bukit { position: absolute; left: 0; right: 0; bottom: 0; width: 100%; height: 150px; }
.senja .teks { position: absolute; z-index: 3; left: 0; right: 0; top: 30px; text-align: center; padding: 0 24px; }
.senja .teks h2 { font-size: clamp(26px, 7vw, 44px); color: var(--dakwat); text-shadow: 0 2px 0 rgba(255, 255, 255, .5); }
.senja .teks p { margin: 8px auto 0; max-width: 26em; color: var(--dakwat-2); font-weight: 600; }
.pejalan { position: absolute; z-index: 4; bottom: 64px; left: 0; width: 100px; transform: translateX(calc(var(--x, 0) * 1px)); }
.pejalan > img, .pejalan > .ltn { width: 100%; display: block; }

/* ---------- Dunia malam (App #2) ---------- */
.malam4 { background: var(--m1); color: #fff; padding: 30px 0 70px; position: relative; overflow: hidden; }
.malam4 .bintang { inset: 0; opacity: .7; }
.malam4 .lede, .malam4 .rel figcaption span { color: var(--m-ink2); }
.malam4 h2 { color: #fff; font-size: clamp(32px, 8.4vw, 52px); }
.malam4 .split { display: grid; gap: 34px; position: relative; z-index: 2; }
.pentas { position: relative; max-width: 520px; margin: 0 auto; width: 100%; padding: 30px 0 150px; }
.pentas .fon { --fw: min(54vw, 260px); margin: 0 0 0 4%; transform: rotate(-4deg); }
/* kad Kenapa? (HTML sebenar, langkah muncul ikut skrol) */
.kenapa { position: absolute; z-index: 3; right: -4px; bottom: 0; width: min(66vw, 320px); background: var(--m2); border: 1.5px solid var(--m3); border-radius: 24px; padding: 14px; box-shadow: 0 30px 50px -20px rgba(0, 0, 0, .7); transform: rotate(2deg); }
.kenapa .kt4 { display: flex; align-items: center; gap: 8px; font: 800 19px/1 var(--tajuk); color: var(--kunyit); margin-bottom: 10px; }
.kenapa .jw { display: flex; align-items: baseline; gap: 10px; border: 2px solid #8A6A3A; background: #2E3654; border-radius: 16px; padding: 9px 14px; margin-bottom: 8px; }
.kenapa .jw small { font: 800 11px/1 var(--tajuk); letter-spacing: .1em; color: var(--kunyit); }
.kenapa .jw b { font: 800 26px/1 var(--tajuk); }
.lgk { display: flex; gap: 9px; align-items: flex-start; background: var(--m1); border: 1.5px solid var(--m3); border-radius: 14px; padding: 8px 10px; margin-top: 6px; font: 700 clamp(12.5px, 3.5vw, 14.5px)/1.35 var(--font);
  opacity: 0; transform: translateY(14px) scale(.96); transition: opacity .35s, transform .5s var(--pegas); }
.lgk.on { opacity: 1; transform: none; }
.lgk i { flex: none; width: 24px; height: 24px; border-radius: 50%; background: var(--kunyit); color: #4A2E00; display: grid; place-items: center; font: 800 13px/1 var(--tajuk); font-style: normal; }
.lgk mark { background: rgba(255, 182, 39, .18); color: var(--kunyit); border-radius: 6px; padding: 0 4px; }
/* boss terapung + bar HP */
.boss4 { position: absolute; z-index: 3; right: 0; top: 2%; width: 116px; text-align: center; }
.boss4 img { width: 104px; display: block; margin: 0 auto; filter: drop-shadow(0 10px 18px rgba(255, 140, 40, .45)); animation: apung 3.4s ease-in-out infinite alternate; }
.boss4.kena img { animation: gegar .45s; }
@keyframes gegar { 20% { transform: translateX(-8px) rotate(-6deg); } 40% { transform: translateX(7px) rotate(5deg); } 60% { transform: translateX(-5px); } 80% { transform: translateX(3px); } }
.hp { height: 12px; border-radius: 9px; background: var(--m0); border: 2px solid var(--m3); overflow: hidden; margin-top: 4px; }
.hp i { display: block; height: 100%; width: var(--hp, 100%); background: linear-gradient(90deg, #F0623D, var(--kunyit)); border-radius: 9px; transition: width .5s var(--lembut); }
.boss4 .nm { font: 800 13px/1 var(--tajuk); color: #fff; margin-top: 6px; }
.rosak4 { position: absolute; left: 60%; top: 0; font: 800 28px/1 var(--tajuk); color: #fff; -webkit-text-stroke: 1px #C23B1E; text-shadow: 0 3px 0 #C23B1E; opacity: 0; pointer-events: none; }
.boss4.kena .rosak4 { animation: rosak4 .9s var(--lembut); }
@keyframes rosak4 { 0% { opacity: 0; transform: translateY(10px) scale(.6); } 25% { opacity: 1; transform: translateY(-6px) scale(1.15); } 100% { opacity: 0; transform: translateY(-34px) scale(1); } }
.rakan4 { position: absolute; z-index: 4; left: 0; bottom: 40px; width: 84px; animation: apung 3s ease-in-out infinite alternate-reverse; filter: drop-shadow(0 8px 14px rgba(0, 0, 0, .4)); }
.malam4 .rel .no { background: var(--kunyit); color: #4A2E00; }
.malam4 .leret i { background: var(--m3); } .malam4 .leret i.on { background: var(--kunyit); }

/* ---------- Ibu bapa: bento putih ---------- */
.ibu4 { background: #fff; }
.bento { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 26px; }
.kotak4 { position: relative; background: var(--kertas); border-radius: 24px; padding: 16px 14px; overflow: hidden; }
.kotak4 h3 { font-size: 18px; margin: 10px 0 4px; }
.kotak4 p { margin: 0; color: var(--dakwat-2); font-size: 13.5px; line-height: 1.45; }
.kotak4 .ic { width: 52px; height: 52px; border-radius: 16px; display: grid; place-items: center; background: #fff; box-shadow: 0 3px 0 var(--kertas-3); }
.kotak4.besar { grid-column: 1 / -1; background: linear-gradient(160deg, #EAF8EE, #FFF7EA 70%); display: grid; gap: 14px; align-items: end; padding: 20px 20px 0; }
.kotak4.besar h3 { font-size: 22px; } .kotak4.besar p { font-size: 14.5px; }
.kotak4.besar .fon { --fw: min(62vw, 250px); margin: 0 auto -60px; }
.kotak4.tidur { background: #E9F2FF; }
.kotak4.tidur { padding-bottom: 74px; }
.kotak4.tidur .tn-tidur { position: absolute; right: 8px; bottom: -6px; width: 78px; }
.kotak4 .jam { transform-origin: 12px 12px; animation: jarum 6s linear infinite; }
@keyframes jarum { to { transform: rotate(360deg); } }
.kotak4.in .perisai { animation: perisai 1s var(--pegas) .3s both; }
@keyframes perisai { from { transform: scale(.4) rotate(-20deg); } }
.kotak4.in .tanda { stroke-dasharray: 20; animation: lukis .6s ease-out .8s both; }
@keyframes lukis { from { stroke-dashoffset: 20; } to { stroke-dashoffset: 0; } }

/* ---------- Harga ---------- */
.togol { display: inline-flex; background: #fff; border-radius: 999px; padding: 5px; box-shadow: 0 3px 0 var(--kertas-3); margin: 6px 0 22px; position: relative; }
.togol button { position: relative; z-index: 1; border: 0; background: none; font: 800 15px/1 var(--tajuk); padding: 11px 18px; border-radius: 999px; cursor: pointer; color: var(--dakwat-2); transition: color .2s; }
.togol button.on { color: #fff; }
.togol .pil { position: absolute; z-index: 0; top: 5px; bottom: 5px; left: 5px; width: var(--pw, 50%); transform: translateX(var(--px, 0)); background: var(--tunas); border-radius: 999px; transition: transform .35s var(--pegas), width .35s var(--pegas); box-shadow: 0 3px 0 var(--tunas-gelap); }
.togol .jimat { font-size: 11px; background: var(--kunyit-muda); color: #8A5A00; padding: 3px 7px; border-radius: 9px; margin-left: 4px; }
.pelan { display: grid; gap: 16px; text-align: left; }
.pk { background: #fff; border-radius: 28px; padding: 22px; box-shadow: 0 4px 0 var(--kertas-3); position: relative; }
.pk.pro { background: var(--m1); color: #fff; box-shadow: 0 6px 0 var(--m0), 0 30px 50px -26px rgba(19, 32, 61, .8); }
.pk .pt { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.pk h3 { font-size: 26px; }
.pk .pil2 { font: 800 12px/1 var(--tajuk); letter-spacing: .06em; text-transform: uppercase; padding: 7px 10px; border-radius: 999px; background: var(--tunas-muda); color: var(--tunas-gelap); }
.pk.pro .pil2 { background: rgba(255, 182, 39, .18); color: var(--kunyit); }
.pk .amt { font: 800 52px/1 var(--tajuk); margin: 14px 0 2px; display: flex; align-items: baseline; gap: 6px; }
.pk .amt small { font: 600 15px/1.2 var(--font); opacity: .75; }
.pk.pro .amt { color: var(--kunyit); }
.pk .per { color: var(--dakwat-2); font-size: 14px; margin-bottom: 14px; min-height: 2.6em; }
.pk.pro .per { color: var(--m-ink2); }
.pk .ticks li { font-size: 15px; }
.pk .angka { display: inline-block; transition: transform .35s var(--pegas), opacity .2s; }
.pk .angka.tukar { transform: translateY(-14px) scale(.9); opacity: 0; }
.pk .tn-pk { position: absolute; right: 18px; top: -66px; width: 76px; }

/* ---------- Log masuk & FAQ ---------- */
.masuk { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 16px; }
.faq4 { margin-top: 20px; display: grid; gap: 10px; }
.faq4 details { background: #fff; border-radius: 20px; box-shadow: 0 3px 0 var(--kertas-3); overflow: hidden; }
.faq4 summary { list-style: none; cursor: pointer; padding: 16px 52px 16px 18px; font: 800 18px/1.25 var(--tajuk); position: relative; }
.faq4 summary::-webkit-details-marker { display: none; }
.faq4 summary::after { content: ""; position: absolute; right: 18px; top: 50%; width: 24px; height: 24px; margin-top: -12px; border-radius: 50%; background: var(--tunas-muda) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 10l5 5 5-5' fill='none' stroke='%231E9A47' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 18px no-repeat; transition: transform .3s var(--pegas); }
.faq4 details[open] summary::after { transform: rotate(180deg); }
.faq4 .isi { padding: 0 18px 16px; color: var(--dakwat-2); }
.faq4 .isi p { margin: 0; }

/* ---------- Penutup: matahari terbit ---------- */
.akhir { position: relative; overflow: hidden; background: linear-gradient(180deg, #FFF7EA 0%, #FFE7B8 52%, #BDE6FF 100%); padding: 70px 0 0; text-align: center; }
.akhir .terbit { position: absolute; left: 50%; bottom: 60px; width: 260px; height: 260px; margin-left: -130px; border-radius: 50%; background: radial-gradient(circle, #FFE58A 0 50%, rgba(255, 201, 74, 0) 70%); transform: translateY(calc((1 - var(--e, 0)) * 140px)); }
.akhir .sinar { position: absolute; left: 50%; bottom: 0; width: 900px; height: 900px; margin-left: -450px; margin-bottom: -330px; background: repeating-conic-gradient(rgba(255, 255, 255, .35) 0 6deg, transparent 6deg 18deg); border-radius: 50%; animation: pusing4 60s linear infinite; opacity: calc(var(--e, 0) * .9); mask: radial-gradient(circle, #000 20%, transparent 62%); -webkit-mask: radial-gradient(circle, #000 20%, transparent 62%); }
@keyframes pusing4 { to { transform: rotate(360deg); } }
.akhir .w { position: relative; z-index: 3; }
.akhir h2 { font-size: clamp(34px, 9vw, 56px); }
.akhir p { color: var(--dakwat-2); margin: 10px 0 20px; }
.akhir .cta { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.akhir .bukit2 { position: relative; z-index: 2; display: block; width: 100%; height: 170px; margin-top: 110px; }
.bukit2 .b1 { fill: #8ED16B; } .bukit2 .b2 { fill: #5DB848; }
.akhir .panggung { position: relative; margin-top: 26px; }
.akhir .tn-akhir { position: absolute; z-index: 3; left: 50%; bottom: 58%; width: 130px; translate: -50% 0; }
.konfeti { position: absolute; z-index: 4; left: 50%; bottom: 70%; pointer-events: none; }
.konfeti i { position: absolute; width: 10px; height: 14px; border-radius: 3px; opacity: 0; }
.konfeti.go i { animation: konfeti 1.6s var(--lembut) forwards; animation-delay: var(--dl); }
@keyframes konfeti { 0% { opacity: 1; transform: translate(0, 0) rotate(0); } 100% { opacity: 0; transform: translate(var(--x), var(--y)) rotate(var(--r)); } }

/* ---------- Footer & butang melekat ---------- */
.kaki4 { background: #1E3A2C; color: #C9D6CD; padding: 34px 0 120px; font-size: 13.5px; }
.kaki4 nav { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-bottom: 14px; }
.kaki4 nav a { color: #fff; font-weight: 600; text-decoration: none; }
.kaki4 p { margin: 6px 0; }
.lekat { position: fixed; z-index: 45; left: 12px; right: 12px; bottom: max(12px, env(safe-area-inset-bottom)); display: flex; align-items: center; gap: 10px; background: rgba(255, 255, 255, .96); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-radius: 999px; padding: 6px 6px 6px 16px; box-shadow: 0 10px 30px -10px rgba(30, 58, 44, .45); transform: translateY(140%); transition: transform .45s var(--pegas); }
.lekat.on { transform: none; }
.lekat small { flex: 1; font-size: 12.5px; line-height: 1.25; color: var(--dakwat-2); font-weight: 600; }
.lekat .b4 { min-height: 48px; font-size: 15px; padding: 10px 18px; }

/* ---------- Desktop ---------- */
@media (min-width: 960px) {
  .w { padding: 0 32px; }
  .nav4 .b4 { display: inline-flex; }
  .h4 { min-height: min(100svh, 880px); display: grid; align-items: center; padding: 96px 0 56px; background: radial-gradient(90% 80% at 80% 30%, #FFF0CC 0%, var(--kertas) 60%); }
  .h4 > .w { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; padding: 0 32px; }
  .h4-sheet { order: 1; margin: 0; background: none; box-shadow: none; padding: 0; animation: none; }
  .h4-sheet .handle { display: none; }
  .h4-scene { order: 2; height: min(76svh, 660px); border-radius: 260px 260px 44px 44px; box-shadow: 0 40px 80px -36px rgba(30, 58, 44, .55), 0 0 0 10px #fff; overflow: visible; animation: gerbang 1s var(--pegas) both; }
  @keyframes gerbang { from { opacity: 0; transform: translateY(40px) scale(.95); } }
  .h4-scene .klip { position: absolute; inset: 0; border-radius: inherit; overflow: hidden; }
  .h4-tn { width: 46%; bottom: 6%; }
  .kata4 { font-size: 20px; }
  .rama { top: 26%; animation-name: terbang-d; }
  @keyframes terbang-d { 0% { transform: translate(-60px, 40px); } 25% { transform: translate(120px, -30px) rotate(-8deg); } 50% { transform: translate(260px, 40px) rotate(8deg); } 75% { transform: translate(400px, -20px) rotate(-6deg); } 100% { transform: translate(620px, 10px); } }
  .umur { grid-template-columns: 1fr 1fr; }
  .ukad { flex-direction: column; align-items: flex-start; padding: 14px 16px 16px; }
  .ukad .ik { width: 100%; height: 110px; background-size: 140%; }
  .ukad .ik > img, .ukad .ik > .ltn { width: 84px; }
  .ukad .go { position: absolute; right: 14px; bottom: 14px; }
  .ukad em { padding-right: 46px; }
  .stat4 { grid-template-columns: repeat(4, 1fr); gap: 18px; }
  .sek { padding: 100px 0; }
  .siang .split, .malam4 .split { grid-template-columns: 1fr 1fr; align-items: center; gap: 60px; }
  .kipas { --fw: 270px; }
  .kipas .fon.k1, .kipas .fon.k2 { --fw: 230px; }
  .rel { grid-auto-flow: row; grid-template-columns: repeat(4, 1fr); overflow: visible; padding: 6px 0 0; margin: 0; gap: 22px; }
  .leret { display: none; }
  .rel figure:nth-child(even) { margin-top: 40px; }
  .senja { height: 520px; }
  .pejalan { width: 130px; bottom: 74px; }
  .malam4 .split > :first-child { order: 2; }
  .pentas { padding: 20px 0 60px; }
  .pentas .fon { --fw: 290px; margin: 0 auto; }
  .kenapa { right: -50px; width: 330px; }
  .boss4 { right: auto; left: -40px; top: 6%; }
  .rakan4 { left: auto; right: 6%; top: 2%; bottom: auto; }
  .kipas { --buka: -46%; }
  .bento { grid-template-columns: 1.15fr 1fr 1fr; gap: 16px; }
  .kotak4 { padding: 22px; } .kotak4 h3 { font-size: 21px; } .kotak4 p { font-size: 14.5px; }
  .kotak4.besar { grid-column: 1; grid-row: 1 / span 3; }
  .bento.dua .kotak4.besar { grid-row: 1 / span 2; }
  .kotak4.besar .fon { margin-bottom: -40px; }
  .kotak4.tidur { padding-bottom: 22px; } .kotak4.tidur .tn-tidur { width: 92px; }
  .malam4 .rel-t { margin-top: 80px; }
  .pelan { grid-template-columns: 1fr 1fr; max-width: 860px; margin: 0 auto; }
  .lekat { display: none; }
  .akhir { padding-top: 100px; }
  .akhir .bukit2 { height: 220px; margin-top: 130px; }
  .akhir .tn-akhir { width: 160px; }
  .kaki4 { padding-bottom: 40px; }
}

/* ================= Halaman app (/sedia-tahun-1/, /math-sains/) ================= */
.kecil { font-size: 13px; color: var(--dakwat-3); margin: 12px 0 0; line-height: 1.5; }
.kecil a { color: inherit; }
/* hero: teks dahulu, kemudian adegan dengan demo "Cuba tekan" di dalam telefon */
.h4.produk .h4-sheet { margin: 0; border-radius: 0; box-shadow: none; padding: 92px 20px 24px; animation: none; background: none; }
.h4.produk .h4-sheet .handle { display: none; }
.cta4 { display: grid; gap: 10px; justify-items: start; }
.cta4 .b4 { min-height: 60px; font-size: 19px; padding: 14px 30px; animation: kad4 .7s var(--pegas) .7s both; }
.cta4 small { color: var(--dakwat-2); font-size: 13.5px; font-weight: 600; }
.cta4 .link { font-size: 14.5px; }
.h4-scene.demo { height: auto; margin: 0 12px; border-radius: 34px; padding: 30px 0 34px; display: grid; justify-items: center; overflow: visible; box-shadow: 0 30px 60px -34px rgba(30, 58, 44, .6); }
.h4-scene.demo .klip { border-radius: inherit; }
.h4-scene.demo .h4-bg { background-position: center 75%; }
.demo-fon { --fw: min(78vw, 300px); z-index: 3; }
.dm4 { position: absolute; z-index: 5; left: -4px; bottom: -6px; width: 104px; }
.dm4.ltn { filter: drop-shadow(0 10px 14px rgba(20, 40, 30, .3)); }
.cuba4 { position: absolute; z-index: 5; right: 4px; top: 14px; background: var(--kunyit); color: #4A2E00; font: 800 14px/1 var(--tajuk); padding: 9px 13px; border-radius: 14px; transform: rotate(5deg);
  box-shadow: 0 4px 0 var(--kunyit-gelap); animation: angguk 2.6s ease-in-out infinite; }
@keyframes angguk { 0%, 100% { transform: rotate(5deg); } 50% { transform: rotate(-2deg) translateY(-3px); } }

/* skrin demo (gaya app v4) */
.scr { position: relative; display: flex; flex-direction: column; height: min(560px, calc(var(--fw) * 1.92)); background: var(--kertas); color: var(--dakwat); border-radius: calc(var(--fw) * .13); overflow: hidden; overflow: clip; }
.d-top { display: flex; align-items: center; gap: 10px; padding: 18px 16px 6px; }
.d-x { color: var(--dakwat-3); font-size: 22px; line-height: 1; }
.d-pb { flex: 1; height: 12px; background: var(--kertas-3); border-radius: 99px; overflow: hidden; }
.d-pb span { display: block; height: 100%; width: 10%; background: var(--tunas); border-radius: 99px; transition: width .4s var(--lembut); }
.d-lang { border: 2px solid var(--kertas-3); background: #fff; border-radius: 12px; padding: 5px 9px; font: 800 12px/1 var(--tajuk); color: var(--dakwat); cursor: pointer; }
.d-body { flex: 1; min-height: 0; display: flex; flex-direction: column; padding: 8px 16px; }
.d-tagq { align-self: flex-start; font: 800 11px/1 var(--tajuk); letter-spacing: .08em; text-transform: uppercase; padding: 5px 9px; border-radius: 9px; background: var(--kunyit-muda); color: #8A5A00; margin-bottom: 8px; }
.d-tagq:empty { display: none; }
.d-q { font: 800 20px/1.25 var(--tajuk); margin-bottom: 8px; }
.d-show { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 10px; min-height: 110px; margin-bottom: 10px; }
.d-show:empty { display: none; }
.d-show img { width: 92px; height: 92px; object-fit: contain; }
.d-show.many img { width: 52px; height: 52px; }
.d-word { font: 800 32px/1 var(--tajuk); letter-spacing: .03em; background: #fff; border-radius: 16px; padding: 8px 16px; box-shadow: 0 3px 0 var(--kertas-3); }
.d-word u { text-decoration: none; color: var(--biru); }
.d-ops { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: auto; padding-bottom: 10px; }
.d-op { border: 0; border-radius: 18px; background: #fff; padding: 14px 0; text-align: center; font: 800 26px/1 var(--tajuk); color: var(--dakwat); cursor: pointer; box-shadow: 0 4px 0 var(--kertas-3); transition: transform .08s, box-shadow .08s; }
.d-op.sm { font-size: 19px; }
.d-op:active { transform: translateY(3px); box-shadow: 0 1px 0 var(--kertas-3); }
.d-op.ok { background: var(--tunas-muda); color: var(--tunas-gelap); box-shadow: 0 0 0 3px var(--tunas), 0 4px 0 var(--tunas-gelap); animation: okPop .4s var(--pegas); }
.d-op.no { background: #FFEBDC; color: var(--oren-gelap); box-shadow: 0 0 0 3px var(--oren), 0 4px 0 var(--oren-gelap); animation: goyang4 .32s; }
@keyframes okPop { 40% { transform: scale(1.08); } }
@keyframes goyang4 { 25% { transform: translateX(-6px); } 50% { transform: translateX(5px); } 75% { transform: translateX(-3px); } }
.d-sheet { padding: 12px 16px 16px; background: #fff; border-radius: 22px 22px 0 0; transition: background .2s; }
.d-sheet b { display: block; font: 800 18px/1.2 var(--tajuk); margin-bottom: 10px; color: var(--dakwat-2); }
.d-sheet.good { background: var(--tunas-muda); } .d-sheet.good b { color: var(--tunas-gelap); }
.d-sheet.bad { background: #FFEBDC; } .d-sheet.bad b { color: var(--oren-gelap); }
.d-row { display: flex; gap: 8px; }
.d-btn { flex: 1; border: 0; border-radius: 999px; padding: 13px; font: 800 15px/1 var(--tajuk); letter-spacing: .06em; text-transform: uppercase; background: var(--kertas-2); color: var(--dakwat-3); box-shadow: 0 4px 0 var(--kertas-3); }
.d-sheet.good .d-btn, .d-sheet.bad .d-btn.go { background: var(--tunas); color: #fff; box-shadow: 0 4px 0 var(--tunas-gelap); cursor: pointer; }
.d-why { flex: none; border: 2px solid var(--kertas-3); background: #fff; color: var(--dakwat); border-radius: 999px; padding: 10px 14px; font: 800 13px/1 var(--tajuk); letter-spacing: .06em; text-transform: uppercase; cursor: pointer; }
.d-why[hidden] { display: none; }
.d-exp { position: absolute; z-index: 4; left: 0; right: 0; bottom: 0; background: #fff; border-radius: 24px 24px 0 0; box-shadow: 0 -10px 30px rgba(0, 0, 0, .16); padding: 16px 16px 18px; transform: translateY(105%); transition: transform .3s var(--lembut); }
.d-exp.on { transform: none; }
.d-exp h4 { margin: 0 0 10px; font: 800 19px/1 var(--tajuk); color: var(--kunyit-gelap); }
.d-exp .ans { background: var(--kunyit-muda); border-radius: 14px; padding: 8px 12px; font: 800 22px/1.2 var(--tajuk); margin-bottom: 10px; }
.d-exp ol { margin: 0 0 12px; padding: 0; list-style: none; display: grid; gap: 7px; counter-reset: st; }
.d-exp li { counter-increment: st; display: grid; grid-template-columns: 24px 1fr; gap: 8px; background: var(--kertas); border-radius: 12px; padding: 8px 10px; font-size: 14px; line-height: 1.4; }
.d-exp li::before { content: counter(st); width: 22px; height: 22px; border-radius: 50%; background: var(--kunyit); color: #4A2E00; font: 800 12px/22px var(--tajuk); text-align: center; }
.d-exp .d-btn { width: 100%; background: var(--kunyit); color: #4A2E00; box-shadow: 0 4px 0 var(--kunyit-gelap); cursor: pointer; }
.d-end { flex: 1; display: none; flex-direction: column; align-items: center; justify-content: center; gap: 10px; padding: 0 18px 18px; text-align: center; }
.d-end > img, .d-end > .ltn { width: 130px; }
.d-end h3 { font-size: 24px; }
.d-end p { margin: 0; color: var(--dakwat-2); font-size: 14.5px; }
.d-end .b4 { min-height: 48px; font-size: 15px; padding: 10px 20px; }
.d-again { background: none; border: 0; color: var(--dakwat-2); font: 700 14px var(--font); text-decoration: underline; cursor: pointer; }
.scr.done .d-body, .scr.done .d-sheet, .scr.done .d-top { display: none; }
.scr.done .d-end { display: flex; }

/* ---------- Math & Sains: Arena malam ---------- */
.l4.ms .h4.produk { background: var(--m1); color: #fff; }
.l4.ms .h4 h1 { color: #fff; } .l4.ms .h4 h1 em { color: var(--kunyit); }
.l4.ms .h4 h1 em::after { background: var(--kunyit); opacity: .25; }
.l4.ms .h4 .lsub, .l4.ms .cta4 small { color: var(--m-ink2); }
.l4.ms .h4 .link { color: var(--kunyit); }
.l4.ms .label4 { background: rgba(255, 255, 255, .1); color: #fff; } .l4.ms .label4.k { background: rgba(255, 182, 39, .18); color: var(--kunyit); }
.h4-bg.arena { background-image: url(/assets/img/latar/arena.webp); background-position: center 55%; }
.h4-scene.demo.malam { background: var(--m2); box-shadow: 0 30px 60px -30px rgba(0, 0, 0, .8); }
.malam .scr, .scr.malam { background: var(--m1); color: #fff; }
.scr.malam .d-x { color: var(--m-ink2); }
.scr.malam .d-pb { background: var(--m3); } .scr.malam .d-pb span { background: var(--kunyit); }
.scr.malam .d-lang { background: var(--m2); border-color: var(--m3); color: #fff; }
.scr.malam .d-tagq { background: rgba(255, 182, 39, .16); color: var(--kunyit); }
.scr.malam .d-op { background: var(--m2); color: #fff; box-shadow: 0 4px 0 var(--m0); border: 1.5px solid var(--m3); }
.scr.malam .d-op.ok { background: rgba(46, 189, 89, .18); color: #7FE0A0; box-shadow: 0 0 0 3px var(--tunas), 0 4px 0 var(--m0); }
.scr.malam .d-op.no { background: rgba(255, 138, 61, .16); color: #FFB98A; box-shadow: 0 0 0 3px var(--oren), 0 4px 0 var(--m0); }
.scr.malam .d-sheet { background: var(--m2); } .scr.malam .d-sheet b { color: var(--m-ink2); }
.scr.malam .d-sheet.good { background: #1E4A39; } .scr.malam .d-sheet.good b { color: #7FE0A0; }
.scr.malam .d-sheet.bad { background: #3A2B2A; } .scr.malam .d-sheet.bad b { color: #FFB98A; }
.scr.malam .d-btn { background: var(--m3); color: var(--m-ink2); box-shadow: 0 4px 0 var(--m0); }
.scr.malam .d-sheet.good .d-btn, .scr.malam .d-sheet.bad .d-btn.go { background: var(--kunyit); color: #4A2E00; box-shadow: 0 4px 0 var(--kunyit-gelap); }
.scr.malam .d-why { background: transparent; border-color: #8A6A3A; color: #fff; }
.scr.malam .d-exp { background: var(--m2); color: #fff; }
.scr.malam .d-exp .ans { background: #2E3654; border: 2px solid #8A6A3A; }
.scr.malam .d-exp li { background: var(--m1); border: 1.5px solid var(--m3); }
.scr.malam .d-exp li b { color: var(--kunyit); }
.scr.malam .d-end p { color: var(--m-ink2); }
.scr.malam .d-again { color: var(--m-ink2); }
.l4.ms .bukti { background: var(--m1); padding-bottom: 30px; }
.l4.ms .bukti .ssm { color: var(--m-ink2); }

/* unit KSSR dengan boss */
.unit4 { display: grid; gap: 10px; margin-top: 24px; position: relative; z-index: 2; }
.unit4 .u { display: flex; align-items: center; gap: 12px; background: var(--m2); border: 1.5px solid var(--m3); border-radius: 20px; padding: 10px 14px 10px 10px; }
.unit4 .u > img { width: 56px; height: 56px; object-fit: contain; flex: none; filter: drop-shadow(0 4px 8px rgba(0, 0, 0, .35)); }
.unit4 .u .gl { width: 56px; height: 56px; border-radius: 16px; flex: none; display: grid; place-items: center; background: var(--m3); color: var(--kunyit); }
.unit4 h3 { font-size: 17.5px; color: #fff; }
.unit4 p { margin: 2px 0 0; font-size: 13.5px; line-height: 1.4; color: var(--m-ink2); }

/* pulau (Persediaan Tahun 1) */
.pulau4 { display: grid; gap: 12px; margin-top: 24px; }
.pl { display: flex; align-items: center; gap: 14px; background: #fff; border-radius: 22px; padding: 14px; box-shadow: 0 3px 0 var(--kertas-3); }
.pl .gl { width: 60px; height: 60px; flex: none; display: grid; place-items: center; border-radius: 18px; color: #fff; font: 800 26px/1 var(--tajuk); box-shadow: inset 0 3px 0 rgba(255, 255, 255, .25), 0 4px 0 rgba(0, 0, 0, .16); }
.pl .gl.ar { font: 700 30px/1 "Noto Naskh Arabic", serif; padding-bottom: 6px; }
.pl h3 { font-size: 19px; }
.pl h3 small { font: 600 13px/1 var(--font); color: var(--dakwat-3); margin-left: 6px; }
.pl p { margin: 3px 0 0; font-size: 14px; line-height: 1.4; color: var(--dakwat-2); }

/* Semakan percuma */
.semak4 { background: linear-gradient(180deg, #E2F1FE, var(--kertas) 80%); }
.semak4 .split { display: grid; gap: 30px; }
.semak4 .fon { --fw: min(66vw, 280px); margin: 0 auto; transform: rotate(-3deg); }
.semak4 .tag4 { position: absolute; z-index: 2; left: 50%; top: -12px; translate: -50% 0; white-space: nowrap; font: 800 12px/1 var(--tajuk); letter-spacing: .08em; text-transform: uppercase; background: var(--kunyit); color: #4A2E00; padding: 7px 11px; border-radius: 999px; box-shadow: 0 3px 0 var(--kunyit-gelap); }
.l4.ms .semak4 { background: var(--kertas); }

/* harga: butiran 2–3 app, senarai menunggu */
.pk .b4 { width: 100%; }
.pk [data-premium-lead] { margin-top: 12px; color: var(--dakwat); text-align: left; }
.pk [data-premium-lead] .card { margin: 0; }
.pk .pilih2 { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 4px; }
.pk .pilih2 .b4 { width: auto; flex: 1; min-width: 140px; }
.more4 { max-width: 860px; margin: 18px auto 0; text-align: left; }
.more4 summary { cursor: pointer; list-style: none; text-align: center; font: 800 16px/1.3 var(--tajuk); color: var(--tunas-gelap); text-decoration: underline; text-underline-offset: 3px; }
.more4 summary::-webkit-details-marker { display: none; }
.ptab4 { width: 100%; border-collapse: collapse; background: #fff; border-radius: 18px; overflow: hidden; margin-top: 12px; box-shadow: 0 3px 0 var(--kertas-3); font-size: 15px; }
.ptab4 th, .ptab4 td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--kertas-2); }
.ptab4 th { font: 800 13px/1 var(--tajuk); letter-spacing: .06em; text-transform: uppercase; color: var(--dakwat-3); }
.ptab4 td + td, .ptab4 th + th { text-align: right; font-weight: 700; }
.ptab4 tr:last-child td { border-bottom: 0; }

/* testimoni berpersetujuan */
.testi4 { display: grid; gap: 14px; margin-top: 22px; }
.testi4 .testi { margin: 0; background: #fff; border-radius: 22px; padding: 18px; box-shadow: 0 3px 0 var(--kertas-3); }
.testi4 blockquote { margin: 0 0 10px; font-size: 16px; }
.testi4 figcaption { font-size: 14px; color: var(--dakwat-2); }

/* penutup malam (Math & Sains) */
.akhir.malam { background: linear-gradient(180deg, var(--kertas) 0%, #9DB4E6 30%, #2A3F72 70%, var(--m1) 100%); color: #fff; }
.akhir.malam h2 { color: #fff; } .akhir.malam p { color: var(--m-ink2); }
.akhir.malam .terbit { background: radial-gradient(circle, #FFF4D0 0 38%, rgba(255, 244, 208, .35) 40%, rgba(255, 244, 208, 0) 68%); }
.akhir.malam .sinar { display: none; }
.akhir.malam .bukit2 .b1 { fill: #2A3F72; } .akhir.malam .bukit2 .b2 { fill: #1C2D55; }
.akhir.malam .bintang { inset: 30% 0 20% 0; opacity: calc(var(--e, 0) * 1.2); }
.akhir .cta .link { color: inherit; }
.akhir.malam .cta .link { color: var(--kunyit); }

/* ombak peralihan antara bahagian gelap & cerah */
.ombak { display: block; width: 100%; height: 40px; }
.l4.ms .bukti { padding-bottom: 0; }
.bukti .ombak { margin-top: 28px; margin-bottom: -1px; }
.malam4 > .ombak { position: absolute; z-index: 1; left: 0; right: 0; bottom: -1px; }
.malam4 > .ombak.atas { top: -1px; bottom: auto; }
.l4.ms .malam4 { padding: 80px 0 110px; }
.l4.ms .h4.produk .bintang { inset: 0; }
.sk.k { --c: var(--kunyit); --cd: var(--kunyit-gelap); } .sk.k .lb { color: #4A2E00; } .sk.k b { color: var(--kunyit-gelap); }
.masuk .b4 { width: auto; flex: 1 1 200px; }
.pk .kicker { margin-bottom: 8px; }

@media (min-width: 960px) {
  .h4.produk { padding-bottom: 72px; }
  .h4.produk h1 { font-size: 54px; }
  .h4.produk .h4-sheet { padding: 0; }
  .h4-scene.demo { margin: 0; height: auto; min-height: 640px; padding: 40px 0; align-content: center; border-radius: 260px 260px 44px 44px; box-shadow: 0 40px 80px -36px rgba(30, 58, 44, .55), 0 0 0 10px #fff; }
  .l4.ms .h4-scene.demo { box-shadow: 0 40px 80px -30px rgba(0, 0, 0, .8), 0 0 0 10px var(--m2); }
  .l4.ms .h4.produk { background: radial-gradient(80% 70% at 75% 30%, #22335E 0%, var(--m1) 65%); }
  .demo-fon { --fw: 300px; }
  .dm4 { left: -60px; bottom: 20px; width: 130px; }
  .cuba4 { right: -24px; top: 70px; }
  .pulau4 { grid-template-columns: repeat(3, 1fr); }
  .unit4 { grid-template-columns: repeat(3, 1fr); gap: 14px; }
  .semak4 .split { grid-template-columns: .9fr 1.1fr; align-items: center; gap: 60px; }
  .semak4 .fon { --fw: 290px; }
  .testi4 { grid-template-columns: repeat(3, 1fr); }
}

/* Kurangkan gerakan: pilihan dalam app (localStorage tc_gerak), bukan tetapan telefon */
html.kurang-gerak .rv { opacity: 1; transform: none; transition: none; }
html.kurang-gerak .l4 *, html.kurang-gerak .l4 *::before, html.kurang-gerak .l4 *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; }