/* Kutub — ucapan ulang tahun bertema penguin: balok es dipecahkan, pesta malam di kutub dengan aurora, penguin berjalan membawa kue, papan nama dari es. Penguin digambar SVG (satu definisi, dipakai ulang). */
@font-face { font-family: "Fredoka"; src: url("fonts/fredoka.woff2") format("woff2"); font-weight: 400 700; font-display: swap; }
@font-face { font-family: "Nunito"; src: url("fonts/nunito.woff2") format("woff2"); font-weight: 400 800; font-display: swap; }

/* --malam = langit kutub; --es* = biru es; --navy = tinta & bulu penguin. */
:root { --malam: #0b1d3a; --malam2: #1c3d6e; --es: #eaf5ff; --es2: #cfe6fb; --es3: #9ccbf3; --navy: #16294d; --soft: #5b7398; --pink: #f472b6; --kuning: #facc15; --round: "Fredoka", "Nunito", system-ui, sans-serif; --sans: "Nunito", system-ui, sans-serif; }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--malam); }
body { margin: 0; min-height: 100vh; background: linear-gradient(var(--malam) 0, var(--malam) 100svh, var(--es) 100svh); color: var(--navy); font: 500 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; }
img { max-width: 100%; display: block; }
p, h1, h2, figure { margin: 0; }
em { font-style: normal; color: #0ea5e9; }
main { position: relative; z-index: 1; width: 100%; max-width: 480px; margin: 0 auto; overflow-x: clip; background: var(--es); }
.lbl { font: 600 13px/1.3 var(--round); letter-spacing: .16em; text-transform: uppercase; color: var(--soft); text-align: center; }
.js-only { display: none; }
.js .js-only { display: revert; }

/* Salju turun di seluruh halaman. */
.salju { position: fixed; inset: 0; z-index: 2; pointer-events: none; overflow: hidden; }
.salju i { position: absolute; top: -12px; left: var(--x); width: var(--s, 6px); aspect-ratio: 1; border-radius: 50%; background: #fff; box-shadow: 0 0 4px rgb(147 197 253 / .9); opacity: .85; }
.salju i:nth-child(1) { --x: 4%; --s: 5px; --d: 0s; --t: 9s; } .salju i:nth-child(2) { --x: 11%; --s: 8px; --d: -3s; --t: 12s; } .salju i:nth-child(3) { --x: 18%; --s: 4px; --d: -6s; --t: 8s; }
.salju i:nth-child(4) { --x: 25%; --s: 7px; --d: -1s; --t: 11s; } .salju i:nth-child(5) { --x: 32%; --s: 5px; --d: -8s; --t: 10s; } .salju i:nth-child(6) { --x: 39%; --s: 9px; --d: -4s; --t: 13s; }
.salju i:nth-child(7) { --x: 46%; --s: 4px; --d: -2s; --t: 9s; } .salju i:nth-child(8) { --x: 53%; --s: 6px; --d: -7s; --t: 11s; } .salju i:nth-child(9) { --x: 60%; --s: 8px; --d: -5s; --t: 12s; }
.salju i:nth-child(10) { --x: 67%; --s: 5px; --d: -9s; --t: 10s; } .salju i:nth-child(11) { --x: 74%; --s: 7px; --d: -1.5s; --t: 9s; } .salju i:nth-child(12) { --x: 81%; --s: 4px; --d: -6.5s; --t: 8s; }
.salju i:nth-child(13) { --x: 88%; --s: 9px; --d: -3.5s; --t: 14s; } .salju i:nth-child(14) { --x: 95%; --s: 5px; --d: -8.5s; --t: 10s; } .salju i:nth-child(15) { --x: 14%; --s: 6px; --d: -10s; --t: 12s; }
.salju i:nth-child(16) { --x: 49%; --s: 5px; --d: -11s; --t: 11s; } .salju i:nth-child(17) { --x: 71%; --s: 6px; --d: -12s; --t: 13s; } .salju i:nth-child(18) { --x: 92%; --s: 4px; --d: -2.5s; --t: 9s; }

/* ---------- Sampul: penguin membeku di balok es ---------- */
.cover { position: relative; display: none; min-height: 100svh; flex-direction: column; align-items: center; justify-content: center; gap: 20px; padding: 40px 22px; text-align: center; color: #e0f2fe; background: radial-gradient(90% 60% at 50% 40%, #1f4a80, var(--malam) 75%); overflow: hidden; }
.cover .kicker { font: 600 13px/1.4 var(--round); letter-spacing: .14em; text-transform: uppercase; color: #93c5fd; }
.cover .kicker b { color: #fff; }
.cover h1 { font: 600 30px/1.15 var(--round); color: #fff; }
.cover h1 em { color: #7dd3fc; }
.petunjuk { font-size: 14px; color: #bfdbfe; min-height: 1.6em; }
.balok { position: relative; width: 220px; height: 250px; border-radius: 30px 22px 34px 26px; background: linear-gradient(150deg, rgb(224 242 254 / .92), rgb(147 197 253 / .75) 55%, rgb(96 165 250 / .7)); border: 3px solid rgb(255 255 255 / .9); box-shadow: inset 0 0 30px rgb(255 255 255 / .7), inset -12px -16px 0 rgb(59 130 246 / .18), 0 24px 50px rgb(0 0 0 / .45); cursor: pointer; }
.beku { position: absolute; inset: 22px 34px 18px; display: grid; place-items: center; }
.beku img { width: 100%; filter: blur(1.4px) saturate(.6) hue-rotate(-10deg); opacity: .75; transform: rotate(-6deg); }
.kilap { position: absolute; left: 22px; top: 18px; width: 26px; height: 120px; border-radius: 20px; background: linear-gradient(rgb(255 255 255 / .9), transparent); transform: rotate(14deg); }
.retak { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.retak path { fill: none; stroke: #fff; stroke-width: 3; stroke-linecap: round; stroke-linejoin: round; stroke-dasharray: 400; stroke-dashoffset: 400; transition: stroke-dashoffset .35s ease; filter: drop-shadow(0 0 3px #bae6fd); }
.k1 .retak .r1, .k2 .retak .r1, .k2 .retak .r2, .k3 .retak path { stroke-dashoffset: 0; }
.pecahan { position: absolute; inset: 0; pointer-events: none; }
.pecahan i { position: absolute; width: 50%; height: 34%; background: linear-gradient(150deg, rgb(224 242 254 / .95), rgb(125 180 245 / .8)); border: 2px solid #fff; opacity: 0; }
.pecahan i:nth-child(1) { left: 0; top: 0; clip-path: polygon(0 0, 100% 0, 80% 100%, 0 70%); --tx: -140px; --ty: -120px; --r: -60deg; }
.pecahan i:nth-child(2) { right: 0; top: 0; clip-path: polygon(0 0, 100% 0, 100% 80%, 20% 100%); --tx: 150px; --ty: -110px; --r: 70deg; }
.pecahan i:nth-child(3) { left: 0; top: 33%; clip-path: polygon(0 0, 100% 20%, 70% 100%, 0 90%); --tx: -170px; --ty: 10px; --r: -90deg; }
.pecahan i:nth-child(4) { right: 0; top: 33%; clip-path: polygon(0 10%, 100% 0, 100% 100%, 30% 80%); --tx: 170px; --ty: 30px; --r: 100deg; }
.pecahan i:nth-child(5) { left: 0; bottom: 0; clip-path: polygon(0 0, 90% 20%, 100% 100%, 0 100%); --tx: -130px; --ty: 160px; --r: -40deg; }
.pecahan i:nth-child(6) { right: 0; bottom: 0; clip-path: polygon(10% 10%, 100% 0, 100% 100%, 0 100%); --tx: 140px; --ty: 170px; --r: 50deg; }
.pecahan i:nth-child(7) { left: 25%; top: 20%; width: 30%; height: 24%; clip-path: polygon(50% 0, 100% 60%, 40% 100%, 0 40%); --tx: -40px; --ty: -200px; --r: 160deg; }
.pecahan i:nth-child(8) { left: 45%; top: 55%; width: 30%; height: 24%; clip-path: polygon(0 0, 100% 30%, 60% 100%); --tx: 60px; --ty: 220px; --r: -140deg; }
.pecah .pecahan i { animation: pecah .9s cubic-bezier(.2, .6, .4, 1) forwards; }
.pecah .balok { background: transparent; border-color: transparent; box-shadow: none; transition: background .1s, border-color .1s, box-shadow .1s; }
.pecah .beku img { filter: none; opacity: 1; transform: translateY(-30px) scale(1.15); transition: transform .5s cubic-bezier(.3, 1.6, .5, 1), filter .3s, opacity .3s; }
.pecah .retak, .pecah .kilap { opacity: 0; }
@keyframes pecah { 0% { opacity: 1; transform: none; } 100% { opacity: 0; transform: translate(var(--tx), var(--ty)) rotate(var(--r)); } }
.getar { animation: getar .3s ease; }
@keyframes getar { 25% { transform: translateX(-6px) rotate(-2deg); } 50% { transform: translateX(6px) rotate(2deg); } 75% { transform: translateX(-3px); } }
.open { min-height: 50px; padding: 0 28px; border: 0; border-radius: 999px; background: linear-gradient(180deg, #7dd3fc, #38bdf8); color: var(--navy); font: 600 16px/1 var(--round); cursor: pointer; box-shadow: 0 6px 0 #0284c7, 0 14px 26px rgb(0 0 0 / .35); }
.open:active { transform: translateY(4px); box-shadow: 0 2px 0 #0284c7; }

/* ---------- Adegan pesta di kutub: lukisan 3D + penguin berlapis. Posisi = persen lukisan 940×1684. ---------- */
.kutub { position: relative; height: 100svh; min-height: 600px; overflow: hidden; background: #101a33; contain: paint; }
.stage { position: absolute; left: 50%; top: 50%; width: max(100%, calc(max(100svh, 600px) * .5582)); aspect-ratio: 940 / 1684; translate: -50% -50%; transform-origin: 71% 64%; }
.stage > * { position: absolute; }
.latar { inset: 0; width: 100%; height: 100%; }
.aurora-kilau { border-radius: 50%; mix-blend-mode: screen; pointer-events: none; }
.aurora-kilau.a1 { left: -10%; top: 0; width: 90%; height: 26%; background: radial-gradient(ellipse at 50% 50%, rgb(110 255 200 / .32), transparent 65%); }
.aurora-kilau.a2 { left: 15%; top: 24%; width: 90%; height: 22%; background: radial-gradient(ellipse at 50% 50%, rgb(255 150 220 / .28), transparent 65%); }
.bintang i { position: absolute; width: .7%; aspect-ratio: 1; border-radius: 50%; background: #fff; box-shadow: 0 0 6px 2px rgb(255 255 255 / .7); }
.bintang i:nth-child(1) { left: 7%; top: 4%; } .bintang i:nth-child(2) { left: 30%; top: 15%; } .bintang i:nth-child(3) { left: 72%; top: 10%; } .bintang i:nth-child(4) { left: 92%; top: 15%; }
.bintang i:nth-child(5) { left: 6%; top: 31%; } .bintang i:nth-child(6) { left: 52%; top: 22%; } .bintang i:nth-child(7) { left: 88%; top: 37%; } .bintang i:nth-child(8) { left: 24%; top: 43%; }
.lampu i { position: absolute; width: 3.4%; aspect-ratio: 1; translate: -50% -50%; border-radius: 50%; background: radial-gradient(circle, rgb(255 236 180 / .95), rgb(255 190 120 / .35) 45%, transparent 70%); mix-blend-mode: screen; }
.lampu i:nth-child(1) { left: 62%; top: 52.4%; } .lampu i:nth-child(2) { left: 66%; top: 51.6%; } .lampu i:nth-child(3) { left: 70.5%; top: 51.2%; } .lampu i:nth-child(4) { left: 75%; top: 51.4%; }
.lampu i:nth-child(5) { left: 79.5%; top: 52%; } .lampu i:nth-child(6) { left: 84%; top: 52.8%; } .lampu i:nth-child(7) { left: 88.5%; top: 53.4%; } .lampu i:nth-child(8) { left: 93%; top: 53.5%; }
.lampu i:nth-child(9) { left: 66.5%; top: 61.6%; } .lampu i:nth-child(10) { left: 71%; top: 60.4%; } .lampu i:nth-child(11) { left: 80%; top: 60.6%; } .lampu i:nth-child(12) { left: 85.5%; top: 62.6%; }
.pg { display: block; }
.intip { left: 66.4%; bottom: 27.6%; width: 11.5%; transform-origin: 50% 100%; }
.lambai { left: 5%; bottom: 18.5%; width: 20%; transform-origin: 50% 100%; }
.utama { left: 32%; bottom: 11%; width: 31%; }
.utama img { width: 100%; transform-origin: 50% 100%; }
.api-kecil { position: absolute; left: 47.2%; top: 51.5%; width: 9%; aspect-ratio: 1; translate: -50% -50%; border-radius: 50%; background: radial-gradient(circle, rgb(255 230 150 / .9), rgb(255 180 80 / .3) 45%, transparent 70%); mix-blend-mode: screen; }
.meluncur { left: 0; bottom: 8%; width: 25%; opacity: 0; }
.papan { position: absolute; left: 50%; top: 9%; z-index: 3; width: min(82%, 360px); padding: 18px 18px 20px; translate: -50% 0; text-align: center; border-radius: 22px 16px 26px 18px; background: linear-gradient(160deg, rgb(240 249 255 / .96), rgb(186 230 253 / .9)); border: 3px solid #fff; box-shadow: inset 0 -10px 0 rgb(56 189 248 / .18), 0 16px 34px rgb(3 7 30 / .45), 0 0 40px rgb(150 255 220 / .25); }
.papan::after { content: ""; position: absolute; left: 10%; right: 10%; bottom: -16px; height: 16px; background: linear-gradient(rgb(224 242 254 / .95), rgb(186 230 253 / .9)); clip-path: polygon(0 0, 100% 0, 96% 60%, 92% 0, 86% 100%, 80% 0, 72% 70%, 64% 0, 58% 90%, 50% 0, 44% 60%, 38% 0, 30% 100%, 24% 0, 16% 70%, 10% 0, 5% 50%); }
.papan-kecil { font: 600 14px/1.2 var(--round); letter-spacing: .18em; text-transform: uppercase; color: #0284c7; }
.papan-nama { margin: 4px 0 2px; font: 700 clamp(34px, 11vw, 50px)/1.05 var(--round); color: var(--navy); overflow-wrap: anywhere; text-shadow: 0 3px 0 rgb(255 255 255 / .9); }
.papan-dari { font-size: 14px; color: var(--soft); }
.ikan-hujan { position: absolute; inset: 0; z-index: 4; pointer-events: none; overflow: hidden; }
.ikan-hujan i { position: absolute; top: -50px; left: var(--x); font-style: normal; font-size: var(--s, 26px); opacity: 0; }
.ikan-hujan .ik { width: 40px; height: 32px; background: url("img/ikan-oranye.webp") center / contain no-repeat; }
.ikan-hujan .ik.p { background-image: url("img/ikan-pink.webp"); }
.ikan-hujan i:nth-child(1) { --x: 6%; --d: 0s; } .ikan-hujan i:nth-child(2) { --x: 16%; --d: .3s; --s: 20px; } .ikan-hujan i:nth-child(3) { --x: 27%; --d: .1s; } .ikan-hujan i:nth-child(4) { --x: 38%; --d: .5s; --s: 30px; }
.ikan-hujan i:nth-child(5) { --x: 49%; --d: .2s; } .ikan-hujan i:nth-child(6) { --x: 60%; --d: .6s; } .ikan-hujan i:nth-child(7) { --x: 70%; --d: .15s; } .ikan-hujan i:nth-child(8) { --x: 80%; --d: .45s; --s: 30px; }
.ikan-hujan i:nth-child(9) { --x: 90%; --d: .25s; } .ikan-hujan i:nth-child(10) { --x: 33%; --d: .75s; }
.gulir { position: absolute; left: 0; right: 0; bottom: 14px; z-index: 5; text-align: center; font: 600 13px/1 var(--round); color: var(--navy); text-shadow: 0 1px 0 #fff; }

/* ---------- Isi ---------- */
.pesan-sec { position: relative; padding: 104px 20px 30px; }
.ngintip { position: absolute; left: 50%; top: 14px; z-index: 2; width: 130px; translate: -50% 0; }
.bongkah { position: relative; z-index: 1; padding: 30px 22px 24px; border-radius: 30px 18px 34px 22px; background: linear-gradient(165deg, #ffffff, #e0f2fe 60%, #cfe8fb); border: 3px solid #fff; box-shadow: inset 0 -12px 0 rgb(56 189 248 / .12), 0 18px 40px rgb(22 41 77 / .14); }
.bongkah .lbl { margin-bottom: 12px; }
.pesan { font-size: 17px; line-height: 1.7; white-space: pre-line; overflow-wrap: anywhere; }
.ttd { margin-top: 14px; text-align: right; font: 600 18px/1.3 var(--round); color: #0284c7; }

.kue-sec { padding: 40px 20px 30px; text-align: center; }
.kue-wadah { position: relative; width: 240px; margin: 14px auto 0; padding-top: 64px; }
.kue-img { width: 100%; }
.umur { position: absolute; left: 50%; top: 0; translate: -50% 0; z-index: 2; font: 700 52px/1 var(--round); color: #fff; -webkit-text-stroke: 3px #38bdf8; paint-order: stroke fill; text-shadow: 0 5px 0 #0ea5e9; }
.nyala-baris { position: absolute; left: 0; right: 0; top: 52px; height: 24px; }
.nyala { position: absolute; top: 0; width: 13px; height: 22px; margin-left: -6.5px; border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%; background: radial-gradient(circle at 50% 70%, #fff7c2, #fbbf24 55%, #f97316); box-shadow: 0 0 14px 3px rgb(251 191 36 / .7); transform-origin: 50% 100%; transition: opacity .3s ease, transform .3s ease; }
.nyala:nth-child(1) { left: 36.8%; } .nyala:nth-child(2) { left: 49.7%; top: -2px; } .nyala:nth-child(3) { left: 62.2%; }
.nyala::after { content: ""; position: absolute; left: 50%; top: 4px; width: 10px; height: 18px; margin-left: -5px; border-radius: 50%; background: rgb(203 213 225 / .8); opacity: 0; }
.padam .nyala { opacity: 0; transform: scale(.2); }
.padam .nyala-baris::before, .padam .nyala-baris::after { content: ""; position: absolute; top: -10px; width: 16px; height: 22px; border-radius: 50%; background: rgb(203 213 225 / .75); animation: asap 1.6s ease-out forwards; }
.padam .nyala-baris::before { left: 34%; } .padam .nyala-baris::after { left: 60%; animation-delay: .15s; }
@keyframes asap { 0% { opacity: .9; transform: translateY(0) scale(.6); } 100% { opacity: 0; transform: translateY(-46px) scale(1.8); } }
.kue-pingu { position: absolute; right: -54px; bottom: -4px; width: 96px; }
.tiup { min-height: 48px; margin-top: 18px; padding: 0 24px; border: 0; border-radius: 999px; background: var(--navy); color: #fff; font: 600 16px/1 var(--round); cursor: pointer; box-shadow: 0 5px 0 #0b162c; }
.tiup:disabled { opacity: .5; }
.tiup-hasil { min-height: 1.6em; margin-top: 12px; font: 600 17px/1.4 var(--round); color: #0284c7; }

.harapan { padding: 40px 20px; text-align: center; }
.harapan h2, .balas h2 { margin: 6px 0 6px; font: 600 28px/1.15 var(--round); }
.sub { font-size: 14px; color: var(--soft); }
.lubang { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 20px; padding: 26px 16px; border-radius: 50% / 22%; background: radial-gradient(ellipse at 50% 40%, #2563eb, #1e3a8a 75%); border: 6px solid #fff; box-shadow: inset 0 10px 30px rgb(0 0 0 / .35), 0 14px 30px rgb(22 41 77 / .2); }
.ikan { position: relative; display: grid; gap: 6px; justify-items: center; padding: 8px; border: 0; background: transparent; color: #fff; font: 600 14px/1.35 var(--round); cursor: pointer; }
.ikan-muka { display: block; width: 100px; }
.ikan-muka img { width: 100%; }
.ikan:nth-child(odd) .ikan-muka .p, .ikan:nth-child(even) .ikan-muka .o { display: none; }
.ikan:nth-child(4n+3) .ikan-muka, .ikan:nth-child(4n+4) .ikan-muka { transform: scaleX(-1); }
.ikan-isi { display: block; padding: 8px 10px; border-radius: 12px; background: rgb(255 255 255 / .14); }
.js .ikan { min-height: 110px; align-content: center; }
.js .ikan-isi { position: absolute; inset: 4px; display: grid; place-items: center; background: #fff; color: var(--navy); opacity: 0; transform: rotateY(90deg) scale(.8); transition: opacity .35s ease, transform .45s cubic-bezier(.3, 1.4, .5, 1); box-shadow: 0 8px 18px rgb(0 0 0 / .25); }
.js .ikan .ikan-muka { transition: opacity .3s ease, scale .3s ease, rotate .3s ease; }
.js .ikan.terbuka .ikan-isi { opacity: 1; transform: none; }
.js .ikan.terbuka .ikan-muka { opacity: 0; scale: .5; rotate: 20deg; }

.siaran { padding: 30px 20px; }
.tv-es { position: relative; margin-top: 12px; padding: 12px; border-radius: 24px; background: linear-gradient(160deg, #fff, #cfe6fb); border: 3px solid #fff; box-shadow: inset 0 -8px 0 rgb(56 189 248 / .15), 0 16px 30px rgb(22 41 77 / .15); }
.tv-es video { width: 100%; max-height: 70vh; border-radius: 14px; background: #000; display: block; }
.tv-es figcaption { margin-top: 8px; text-align: center; font: 600 15px/1.3 var(--round); color: var(--soft); }
.live { position: absolute; left: 24px; top: 24px; z-index: 1; padding: 2px 10px; border-radius: 6px; background: #ef4444; color: #fff; font: 700 12px/1.6 var(--round); letter-spacing: .08em; }

.galeri { position: relative; padding: 30px 20px; }
.galeri-es { position: absolute; right: 12px; top: 6px; width: 64px; rotate: 12deg; }
.es-batu { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 16px; }
.es-batu figure { position: relative; padding: 10px; border-radius: 18px; background: linear-gradient(150deg, rgb(255 255 255 / .95), rgb(186 230 253 / .85)); border: 2px solid #fff; box-shadow: 0 10px 22px rgb(22 41 77 / .14); transform: rotate(-2deg); }
.es-batu figure:nth-child(even) { transform: rotate(2.5deg) translateY(10px); }
.es-batu figure:first-child:nth-last-child(odd) { grid-column: 1 / -1; }
.es-batu figure::after { content: ""; position: absolute; inset: 10px; border-radius: 10px; background: linear-gradient(135deg, rgb(255 255 255 / .45), transparent 40%, transparent 70%, rgb(186 230 253 / .35)); pointer-events: none; }
.es-batu img { width: 100%; aspect-ratio: 1; object-fit: cover; border-radius: 10px; }

.balas { position: relative; margin: 110px 20px 20px; padding: 100px 20px 24px; border-radius: 26px; background: #fff; text-align: center; box-shadow: 0 16px 40px rgb(22 41 77 / .12); }
.pos { position: absolute; left: 50%; top: -96px; width: 120px; translate: -50% 0; }
.balas form { display: grid; gap: 12px; margin-top: 14px; text-align: left; }
.quick { display: flex; flex-wrap: wrap; gap: 8px; }
.btn { min-height: 50px; padding: 0 22px; border: 0; border-radius: 999px; background: linear-gradient(180deg, #38bdf8, #0ea5e9); color: #fff; font: 600 16px/1.2 var(--round); cursor: pointer; box-shadow: 0 5px 0 #0369a1; }
.btn.ghost { min-height: 42px; padding: 8px 14px; background: var(--es); color: var(--navy); border: 2px dashed var(--es3); box-shadow: none; font-size: 14px; text-align: left; border-radius: 14px; }
textarea { width: 100%; min-height: 96px; padding: 14px 16px; resize: vertical; border: 2px solid var(--es2); border-radius: 16px; background: var(--es); color: var(--navy); font: 500 15px/1.5 var(--sans); }
.hint { font-size: 14px; color: var(--soft); }

.music-toggle { position: fixed; top: 14px; right: 14px; z-index: 20; width: 46px; height: 46px; border-radius: 50%; border: 2px solid #fff; background: #38bdf8; color: #fff; display: grid; place-items: center; cursor: pointer; box-shadow: 0 6px 16px rgb(0 0 0 / .25); }
.music-toggle svg { width: 20px; height: 20px; }
.music-toggle[aria-pressed="true"] { background: var(--pink); }
.foot { position: relative; z-index: 1; max-width: 480px; margin: 0 auto; padding: 10px 22px 30px; background: var(--es); text-align: center; font-size: 13px; color: var(--soft); }
.foot a { color: #0284c7; }
.foot-pingu { width: 110px; margin: 0 auto 8px; }

/* ---------- Urutan dengan JS. Tanpa JS semua tampil di keadaan akhir. ---------- */
.js body[data-opener="amplop"]:not(.opened) .cover { display: flex; }
.js body[data-opener="amplop"]:not(.opened) main > section:not(.cover),
.js body[data-opener="amplop"]:not(.opened) .foot,
.js body[data-opener="amplop"]:not(.opened) .music-toggle { display: none; }
.stage { transition: scale 2.8s cubic-bezier(.45, 0, .2, 1); }
.intip, .lambai, .papan { transition: transform .9s cubic-bezier(.3, 1.5, .5, 1), opacity .5s ease; }
.utama { transition: translate 2.4s linear, opacity .4s ease; }
.js body:not(.t-zoom) .stage { scale: 1.55; }
.js body:not(.t-intip) .intip { transform: translateY(70%) scale(.4); opacity: 0; }
.js body:not(.t-utama) .utama { translate: -230% 0; }
.js body:not(.t-lambai) .lambai { transform: translateY(40%) scale(.5); opacity: 0; }
.js body:not(.t-papan) .papan { transform: translateY(-150%) rotate(-6deg); opacity: 0; }
.js body:not(.t-zoom) .gulir { opacity: 0; }
.no-anim *, .no-anim *::before, .no-anim *::after { transition: none !important; animation: none !important; }

@media (prefers-reduced-motion: no-preference) {
  .salju i { animation: turun var(--t) linear var(--d) infinite; }
  .aurora { animation: aurora 9s ease-in-out infinite alternate; }
  .a2 { animation-duration: 12s; animation-delay: -4s; } .a3 { animation-duration: 15s; animation-delay: -8s; }
  .bintang i { animation: kelip 3s ease-in-out infinite; }
  .bintang i:nth-child(2n) { animation-delay: -1.2s; } .bintang i:nth-child(3n) { animation-delay: -2.1s; }
  .aurora-kilau { animation: aurora 7s ease-in-out infinite alternate; }
  .aurora-kilau.a2 { animation-duration: 9s; animation-delay: -3s; }
  .lampu i { animation: kelip-lampu 1.8s ease-in-out infinite; }
  .lampu i:nth-child(2n) { animation-delay: -.9s; } .lampu i:nth-child(3n) { animation-delay: -.5s; }
  .t-intip .intip { animation: intip-pg 3.6s ease-in-out 1s infinite; }
  .utama img { animation: goyang 2.4s ease-in-out infinite; }
  .berjalan .utama img { animation: jalan .42s ease-in-out infinite; }
  .t-lambai .lambai { animation: lambai-pg 2.2s ease-in-out .9s infinite; }
  .api-kecil { animation: api 0.5s ease-in-out infinite alternate; }
  .nyala { animation: api .5s ease-in-out infinite alternate; }
  .t-luncur .meluncur { animation: luncur 9s cubic-bezier(.4, 0, .6, 1) 0s infinite; }
  .t-hujan .ikan-hujan i { animation: jatuh 3.2s cubic-bezier(.35, 0, .7, 1) var(--d) both; }
  .gulir { animation: naikturun 1.8s ease-in-out infinite; }
  .js .ikan:not(.terbuka) .ikan-muka img { animation: renang 2.6s ease-in-out infinite; }
  .js .ikan:nth-child(2n):not(.terbuka) .ikan-muka img { animation-delay: -1.3s; }
  .foot-pingu { animation: luncur-kaki 6s ease-in-out infinite; }
  .kue-pingu { animation: lambai-pg 2.2s ease-in-out infinite; transform-origin: 50% 100%; }
  .ngintip { animation: intip-isi 4s ease-in-out infinite; }
  .pos { animation: lompat 2.4s ease-in-out infinite; }
  .cover .balok { animation: dingin 3s ease-in-out infinite; }
}
@keyframes turun { 0% { transform: translate(0, 0); } 50% { transform: translate(18px, 52vh); } 100% { transform: translate(-6px, 104vh); } }
@keyframes aurora { 0% { opacity: .5; translate: -4% 0; } 100% { opacity: 1; translate: 4% 1%; } }
@keyframes kelip { 50% { opacity: .25; } }
@keyframes kelip-lampu { 0%, 100% { scale: 1; } 50% { scale: .6; } }
@keyframes intip-pg { 0%, 100% { translate: 0 0; } 40%, 60% { translate: 0 -12%; } }
@keyframes lambai-pg { 0%, 100% { rotate: -3deg; } 50% { rotate: 4deg; translate: 0 -3%; } }
@keyframes intip-isi { 0%, 100% { translate: -50% 0; } 45%, 60% { translate: -50% -8px; } }
@keyframes luncur-kaki { 0% { translate: -140px 0; } 50% { translate: 140px 0; } 50.01% { translate: 140px 0; scale: -1 1; } 100% { translate: -140px 0; scale: -1 1; } }
@keyframes goyang { 0%, 100% { transform: rotate(-2deg); } 50% { transform: rotate(2deg) translateY(-1px); } }
@keyframes jalan { 0%, 100% { transform: rotate(-7deg); } 50% { transform: rotate(7deg) translateY(-4px); } }
@keyframes api { from { scale: 1 1; rotate: -3deg; } to { scale: .88 1.12; rotate: 3deg; } }
@keyframes luncur { 0% { opacity: 1; transform: translateX(-130%); } 40% { opacity: 1; transform: translateX(430%); } 41%, 100% { opacity: 0; transform: translateX(430%); } }
@keyframes jatuh { 0% { opacity: 0; transform: translateY(0) rotate(0); } 10% { opacity: 1; } 85% { opacity: 1; } 100% { opacity: 0; transform: translateY(100svh) rotate(260deg); } }
@keyframes naikturun { 50% { transform: translateY(5px); } }
@keyframes renang { 0%, 100% { transform: translateX(-5px) rotate(-3deg); } 50% { transform: translateX(5px) rotate(3deg); } }
@keyframes lompat { 0%, 70%, 100% { translate: -50% 0; } 80% { translate: -50% -12px; } 90% { translate: -50% 0; } }
@keyframes dingin { 50% { box-shadow: inset 0 0 40px rgb(255 255 255 / .85), inset -12px -16px 0 rgb(59 130 246 / .18), 0 24px 60px rgb(56 189 248 / .4); } }

.anim .reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s cubic-bezier(.2, .7, .2, 1); }
.anim .reveal.in { opacity: 1; transform: none; }