/* yuk-ai.com — gaya situs. Palet: nila (batik) + kunyit; huruf Plus Jakarta Sans (Tokotype, Jakarta). */
:root {
  --nila: #2a2e86;
  --nila-tua: #171a4a;
  --kunyit: #f2b33d;
  --kunyit-muda: #fde9bd;
  --kertas: #fbfbfe;
  --kabut: #eceef8;
  --garis: #d9dcee;
  --abu: #575b78;
  --daun: #14865f;
  --bahaya: #b3261e;
  --putih: #ffffff;
  --gelembung-saya: #e1e4ff;
  --r-kecil: 8px;
  --r-besar: 22px;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--kertas);
  color: var(--nila-tua);
  font-family: "Plus Jakarta Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 17px;
  line-height: 1.6;
}
a { color: var(--nila); text-underline-offset: 3px; }
a:hover { color: var(--nila-tua); }
:focus-visible { outline: 3px solid var(--kunyit); outline-offset: 2px; border-radius: 4px; }
img, svg { display: block; max-width: 100%; }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .5em; letter-spacing: -0.02em; }
h1 { font-size: clamp(2.3rem, 6.4vw, 4.1rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 4vw, 2.4rem); font-weight: 800; }
h3 { font-size: 1.12rem; font-weight: 700; letter-spacing: -0.01em; }
p { margin: 0 0 1em; }
.wadah { width: min(100% - 32px, 1120px); margin-inline: auto; }
.sempit { width: min(100% - 32px, 720px); margin-inline: auto; }

/* ---------- header ---------- */
.atas { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 18px; }
.logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.2rem; color: var(--nila-tua); text-decoration: none; letter-spacing: -0.02em; }
.logo svg { width: 34px; height: 34px; }
.atas nav { display: flex; align-items: center; gap: 20px; font-weight: 600; font-size: .98rem; }
.atas nav a { text-decoration: none; color: var(--nila-tua); }
.atas nav a:hover { text-decoration: underline; }

/* ---------- tombol ---------- */
.tombol {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 50px; padding: 0 24px; border-radius: 999px; border: 2px solid transparent;
  font: inherit; font-weight: 700; font-size: 1rem; text-decoration: none; cursor: pointer;
  transition: transform .12s ease, background-color .12s ease;
}
.tombol:active { transform: translateY(1px); }
.tombol.utama { background: var(--kunyit); color: var(--nila-tua); }
.tombol.utama:hover { background: #e9a51f; color: var(--nila-tua); }
.tombol.nila { background: var(--nila); color: var(--putih); }
.tombol.nila:hover { background: var(--nila-tua); color: var(--putih); }
.tombol.garis { border-color: var(--nila-tua); color: var(--nila-tua); background: transparent; }
.tombol.garis:hover { background: var(--kabut); }
.tombol.kecil { min-height: 40px; padding: 0 16px; font-size: .92rem; }
.tombol[disabled] { opacity: .55; cursor: progress; }

/* ---------- hero ---------- */
.hero { display: grid; gap: 40px; padding-block: 28px 64px; align-items: center; }
.hero h1 { max-width: 13ch; }
.lead { font-size: 1.16rem; color: var(--abu); max-width: 34rem; }
.aksi { display: flex; flex-wrap: wrap; gap: 12px; margin-block: 26px 12px; }
.catatan { font-size: .95rem; color: var(--abu); }
.catatan b { color: var(--nila-tua); }

.hero-hp { position: relative; justify-self: center; width: min(100%, 360px); padding-bottom: 54px; }
.hp {
  background: var(--nila-tua); border-radius: 38px; padding: 12px;
  box-shadow: 0 30px 60px -28px rgba(23, 26, 74, .55);
}
.hp-dalam { background: var(--kabut); border-radius: 28px; overflow: hidden; }
.hp-atas { display: flex; align-items: center; gap: 10px; padding: 14px 16px; background: var(--nila); color: var(--putih); }
.hp-atas b { display: block; font-size: .98rem; line-height: 1.2; }
.hp-atas small { font-size: .8rem; opacity: .8; }
.ava { width: 36px; height: 36px; border-radius: 50%; background: var(--kunyit); color: var(--nila-tua); display: grid; place-items: center; font-weight: 800; }
.obrolan {
  list-style: none; margin: 0; padding: 16px 12px 20px; min-height: 430px;
  display: flex; flex-direction: column; gap: 8px; font-size: .93rem; line-height: 1.45;
  background-image: radial-gradient(rgba(42, 46, 134, .07) 1px, transparent 1px); background-size: 14px 14px;
}
.obrolan li { max-width: 84%; padding: 8px 12px 9px; border-radius: 14px; box-shadow: 0 1px 0 rgba(23, 26, 74, .08); }
.obrolan .saya { align-self: flex-end; background: var(--gelembung-saya); border-bottom-right-radius: 4px; }
.obrolan .ai { align-self: flex-start; background: var(--putih); border-bottom-left-radius: 4px; }
.obrolan .ketik { align-self: flex-start; background: var(--putih); display: inline-flex; gap: 4px; padding: 12px 14px; }
.obrolan .ketik i { width: 6px; height: 6px; border-radius: 50%; background: var(--abu); opacity: .4; animation: titik 1s infinite; }
.obrolan .ketik i:nth-child(2) { animation-delay: .15s; }
.obrolan .ketik i:nth-child(3) { animation-delay: .3s; }
@keyframes titik { 50% { opacity: 1; transform: translateY(-2px); } }
.js .obrolan li.tunggu { display: none; }
.obrolan li.muncul { animation: muncul .28s ease-out both; }
@keyframes muncul { from { opacity: 0; transform: translateY(6px); } }

/* voucher kuota — elemen khas situs ini: kartu pulsa berlubang */
.voucher {
  --lubang: var(--kertas);
  position: relative; display: grid; grid-template-columns: auto 1fr; align-items: baseline; gap: 2px 8px;
  background: var(--kunyit); color: var(--nila-tua); border-radius: var(--r-kecil);
  padding: 16px 20px 16px 26px;
  -webkit-mask: radial-gradient(circle 9px at 0 50%, transparent 98%, #000) left / 51% 100% no-repeat,
                radial-gradient(circle 9px at 100% 50%, transparent 98%, #000) right / 51% 100% no-repeat;
          mask: radial-gradient(circle 9px at 0 50%, transparent 98%, #000) left / 51% 100% no-repeat,
                radial-gradient(circle 9px at 100% 50%, transparent 98%, #000) right / 51% 100% no-repeat;
}
.voucher::before { content: ""; position: absolute; left: 12px; top: 10px; bottom: 10px; border-left: 2px dashed rgba(23, 26, 74, .35); }
.voucher small, .voucher .harga, .voucher .kira, .voucher .tombol, .voucher p { grid-column: 1 / -1; }
.voucher small { font-weight: 600; font-size: .85rem; }
.voucher b { font-size: 1.9rem; font-weight: 800; letter-spacing: -0.03em; line-height: 1; font-variant-numeric: tabular-nums; }
.voucher span { font-weight: 700; }
.hero-voucher { position: absolute; right: -14px; bottom: 0; width: max-content; padding-right: 26px; transform: rotate(-4deg); }

/* ---------- bagian ---------- */
.bagian { padding-block: 64px; }
.bagian.kabut { background: var(--kabut); }
.bagian > .wadah > p.pengantar, .bagian > .sempit > p.pengantar { color: var(--abu); max-width: 38rem; font-size: 1.06rem; }

.langkah ol { list-style: none; margin: 32px 0 0; padding: 0; display: grid; gap: 28px; counter-reset: l; }
.langkah li { counter-increment: l; position: relative; padding-left: 64px; }
.langkah li::before {
  content: counter(l); position: absolute; left: 0; top: -4px; width: 46px; height: 46px; border-radius: 50%;
  background: var(--nila); color: var(--putih); display: grid; place-items: center; font-weight: 800; font-size: 1.2rem;
}
.langkah p { color: var(--abu); margin: 0; }

.bisa { list-style: none; margin: 32px 0 0; padding: 0; border-top: 1px solid var(--garis); }
.bisa li { display: grid; gap: 4px 32px; padding: 18px 0; border-bottom: 1px solid var(--garis); }
.bisa b { font-weight: 700; }
.bisa q { color: var(--abu); quotes: "\201C" "\201D"; }

/* harga */
.mode { display: grid; gap: 14px; margin-block: 28px; }
.mode div { background: var(--putih); border: 1px solid var(--garis); border-radius: var(--r-kecil); padding: 16px 18px; }
.mode b { display: block; }
.mode span { color: var(--abu); font-size: .95rem; }
.paket { display: grid; gap: 18px; margin-top: 8px; }
.paket .voucher { padding: 20px 22px 20px 30px; }
.paket .voucher .harga { margin-top: 6px; }
.paket .voucher .harga { font-size: 1.15rem; font-weight: 800; }
.paket .voucher .kira { font-size: .88rem; font-weight: 600; opacity: .85; }
.paket .voucher.unggul { background: var(--nila); color: var(--putih); }
.paket .voucher.unggul::before { border-color: rgba(255, 255, 255, .45); }
.paket .voucher .tombol { margin-top: 10px; justify-self: start; }
.paket .voucher.unggul .tombol.utama { background: var(--kunyit); }
.ket-kecil { font-size: .9rem; color: var(--abu); margin-top: 18px; }

.aman { list-style: none; padding: 0; margin: 28px 0 0; display: grid; gap: 18px; }
.aman li { padding-left: 28px; position: relative; }
.aman li::before { content: ""; position: absolute; left: 0; top: .45em; width: 12px; height: 12px; border-radius: 3px; background: var(--daun); }

.faq details { border-bottom: 1px solid var(--garis); padding: 16px 0; }
.faq summary { cursor: pointer; font-weight: 700; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-weight: 800; color: var(--nila); }
.faq details[open] summary::after { content: "\2212"; }
.faq details p { color: var(--abu); margin: 10px 0 0; }

.ajakan { text-align: left; }
.ajakan .wadah { display: grid; gap: 20px; align-items: center; }

.bawah { padding-block: 36px 48px; color: var(--abu); font-size: .92rem; border-top: 1px solid var(--garis); }
.bawah .wadah { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; }
.bawah nav { display: flex; gap: 20px; flex-wrap: wrap; }

/* ---------- formulir ---------- */
.kartu-form { background: var(--putih); border: 1px solid var(--garis); border-radius: var(--r-besar); padding: 28px 22px; margin-block: 24px 64px; }
.kartu-form h1 { font-size: clamp(1.8rem, 5vw, 2.3rem); }
.isian { display: grid; gap: 6px; margin-bottom: 16px; }
.isian label { font-weight: 700; font-size: .95rem; }
.isian small { color: var(--abu); font-size: .85rem; }
.isian input, .isian select {
  font: inherit; font-size: 1rem; width: 100%; min-height: 50px; padding: 10px 14px;
  border: 1.5px solid var(--garis); border-radius: 12px; background: var(--kertas); color: var(--nila-tua);
}
.isian input:focus { outline: none; border-color: var(--nila); box-shadow: 0 0 0 3px rgba(42, 46, 134, .15); }
.prefiks { display: flex; align-items: stretch; }
.prefiks span { display: grid; place-items: center; padding: 0 12px; border: 1.5px solid var(--garis); border-right: 0; border-radius: 12px 0 0 12px; background: var(--kabut); font-weight: 700; }
.prefiks input { border-radius: 0 12px 12px 0; }
.centang { display: flex; gap: 10px; align-items: flex-start; font-size: .93rem; color: var(--abu); margin-bottom: 18px; }
.centang input { width: 20px; height: 20px; margin-top: 3px; accent-color: var(--nila); }
.pesan { border-radius: 12px; padding: 12px 14px; font-size: .95rem; margin-bottom: 16px; }
.pesan.galat { background: #fdecea; color: var(--bahaya); }
.pesan.ok { background: #e3f4ec; color: #0d5c41; }
.pesan.info { background: var(--kunyit-muda); color: var(--nila-tua); }
.ganti { margin-top: 18px; font-size: .95rem; color: var(--abu); }

/* ---------- dasbor ---------- */
.dasbor { display: grid; gap: 22px; padding-block: 12px 64px; }
.dasbor h1 { font-size: clamp(1.8rem, 5vw, 2.5rem); margin-bottom: 0; }
.panel { background: var(--putih); border: 1px solid var(--garis); border-radius: var(--r-besar); padding: 22px; }
.panel h2 { font-size: 1.25rem; letter-spacing: -0.01em; margin-bottom: 12px; }
.panel p:last-child { margin-bottom: 0; }
.saldo.voucher { padding: 22px 24px 22px 32px; }
.saldo.voucher b { font-size: clamp(2.2rem, 8vw, 3rem); }
.saldo .kira { grid-column: 1 / -1; font-size: .92rem; font-weight: 600; }
.chip { display: inline-flex; align-items: center; gap: 8px; padding: 4px 12px; border-radius: 999px; font-weight: 700; font-size: .88rem; background: var(--kabut); }
.chip::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--abu); }
.chip.hijau { background: #e3f4ec; color: #0d5c41; }
.chip.hijau::before { background: var(--daun); }
.chip.kuning { background: var(--kunyit-muda); }
.chip.kuning::before { background: #c98a0b; }
.pilih-mode { display: grid; gap: 10px; }
.pilih-mode label { display: grid; grid-template-columns: auto 1fr; gap: 2px 12px; padding: 14px; border: 1.5px solid var(--garis); border-radius: 14px; cursor: pointer; }
.pilih-mode label:has(input:checked) { border-color: var(--nila); background: #f4f5ff; }
.pilih-mode input { grid-row: span 2; width: 20px; height: 20px; margin-top: 3px; accent-color: var(--nila); }
.pilih-mode span { color: var(--abu); font-size: .92rem; }
.daftar-paket { display: grid; gap: 10px; }
.daftar-paket .baris { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--garis); }
.daftar-paket .baris:last-child { border-bottom: 0; }
.daftar-paket small { display: block; color: var(--abu); }
.tabel { width: 100%; border-collapse: collapse; font-size: .93rem; }
.tabel th, .tabel td { text-align: left; padding: 9px 8px 9px 0; border-bottom: 1px solid var(--garis); vertical-align: top; }
.tabel th { font-weight: 700; color: var(--abu); font-size: .85rem; }
.tabel td.angka, .tabel th.angka { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.plus { color: var(--daun); font-weight: 700; }
.minus { color: var(--nila-tua); }
.gulir { overflow-x: auto; }
.qr { background: var(--putih); padding: 14px; border-radius: 14px; border: 1px solid var(--garis); width: fit-content; margin-block: 12px; }
.kode-tautan { font-size: 2rem; font-weight: 800; letter-spacing: .12em; font-variant-numeric: tabular-nums; margin-block: 8px; }

.dokumen { padding-block: 16px 64px; }
.dokumen h1 { font-size: clamp(1.9rem, 5vw, 2.6rem); }
.dokumen h2 { font-size: 1.3rem; margin-top: 1.6em; }
.dokumen li { margin-bottom: .4em; }

/* ---------- layar lebar ---------- */
@media (min-width: 760px) {
  .hero { grid-template-columns: 1.15fr .85fr; padding-block: 40px 88px; }
  .bisa li { grid-template-columns: 220px 1fr; }
  .mode { grid-template-columns: 1fr 1fr; }
  .paket { grid-template-columns: repeat(4, 1fr); }
  .langkah ol { grid-template-columns: repeat(3, 1fr); gap: 32px; }
  .langkah li { padding-left: 0; padding-top: 62px; }
  .aman { grid-template-columns: 1fr 1fr; gap: 22px 40px; }
  .ajakan .wadah { grid-template-columns: 1fr auto; }
  .kartu-form { padding: 40px 44px; }
  .dasbor { grid-template-columns: 1.1fr .9fr; align-items: start; }
  .dasbor > .lebar { grid-column: 1 / -1; }
}
@media (max-width: 420px) {
  .atas nav { gap: 14px; }
  .hero-voucher { right: -4px; }
  .voucher b { font-size: 1.6rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .obrolan li.tunggu { display: block; }
}