/* ============================================================
   Landing page & kartu peserta
   Bahasa visual: lembar jawaban ujian (bulatan diarsir pensil),
   buku kotak-kotak, kartu peserta.
   ============================================================ */
:root{
  --f-judul:"Lexend","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  --f-isi:"Atkinson Hyperlegible","Segoe UI",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
}
body{font-family:var(--f-isi)}

body.lp{
  --kertas:#fbfdfb; --kotak:#d9e9e5; --tinta:#17292c; --redup:#52676a; --garis:#cddcd8;
  --teal:#0f766e; --teal-d:#0b4f4a; --dalam:#0d3a39; --grafit:#2f383b; --stabilo:#ffe36e; --mint:#eaf6f3;
  background:var(--kertas); background-image:none; color:var(--tinta);
  scroll-behavior:smooth;
}
html{scroll-behavior:smooth}
body.lp h1,body.lp h2,body.lp h3{margin:0}
.lp-wrap{max-width:1120px;margin:0 auto;padding:0 20px}

/* ---------- aksesibilitas ---------- */
.lp-skip{position:absolute;left:12px;top:-64px;z-index:100;background:var(--grafit);color:#fff;padding:.6em 1em;border-radius:10px;text-decoration:none;font-weight:700}
.lp-skip:focus{top:12px}
body.lp a:focus-visible,body.lp button:focus-visible,body.lp summary:focus-visible{outline:3px solid var(--teal);outline-offset:3px;border-radius:10px}

/* ---------- navigasi ---------- */
.lp-nav{position:sticky;top:0;z-index:20;background:rgba(251,253,251,.92);-webkit-backdrop-filter:saturate(1.4) blur(10px);backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--garis)}
.lp-nav-in{max-width:1120px;margin:0 auto;padding:10px 20px;display:flex;align-items:center;gap:20px}
.lp-brand-t{font-family:var(--f-judul);font-weight:600;font-size:1.05rem;letter-spacing:-.01em;color:var(--tinta)}
.lp-links{margin-left:auto;display:flex;gap:4px}
.lp-links a{color:var(--tinta);text-decoration:none;padding:.5em .9em;border-radius:999px;font-weight:700;font-size:.95rem}
.lp-links a:hover{background:var(--mint)}
.lp-kembali{margin-left:auto}

/* ---------- hero ---------- */
.lp-hero{position:relative;overflow:hidden}
.lp-hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:
    linear-gradient(var(--kotak) 1px,transparent 1px) 0 0/34px 34px,
    linear-gradient(90deg,var(--kotak) 1px,transparent 1px) 0 0/34px 34px;
  -webkit-mask-image:linear-gradient(180deg,#000 55%,transparent);mask-image:linear-gradient(180deg,#000 55%,transparent)}
.lp-hero-in{position:relative;max-width:1120px;margin:0 auto;padding:68px 20px 92px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,480px);gap:56px;align-items:center}
.lp-teks h1{font-family:var(--f-judul);font-weight:700;font-size:clamp(2.5rem,6.4vw,4.5rem);line-height:1.03;letter-spacing:-.03em;max-width:9.5em;text-wrap:balance}
.lp-lede{font-size:clamp(1.08rem,1.6vw,1.25rem);line-height:1.6;color:var(--redup);max-width:32em;margin:22px 0 0}
.lp-kecil{margin:14px 0 0;font-size:1rem;color:var(--redup)}

/* soal pertama = pilihan mata pelajaran */
.lp-soal{position:relative;background:#fff;border:2px solid var(--grafit);border-radius:20px;padding:26px 26px 22px;box-shadow:8px 8px 0 #cfe9e3}
.lp-soal-kepala{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.lp-tag{font-size:.82rem;font-weight:700;padding:3px 11px;border-radius:999px;background:var(--mint);color:var(--teal-d);border:1px solid #b9ddd5}
.lp-tanya{font-family:var(--f-judul);font-size:clamp(1.45rem,2.6vw,1.8rem);font-weight:600;letter-spacing:-.015em;line-height:1.25;margin-bottom:18px}
.lp-opts{display:grid;gap:12px}
.lp-opt{display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:14px;text-align:left;width:100%;padding:14px 16px;background:#fff;border:2px solid var(--garis);border-radius:14px;font:inherit;color:inherit;transition:border-color .15s,background-color .15s,transform .1s}
button.lp-opt{cursor:pointer}
button.lp-opt:hover{border-color:var(--teal);background:#f2faf8}
button.lp-opt:active{transform:translateY(1px)}
.lp-opt-t{display:grid;gap:2px;min-width:0}
.lp-opt-t b{font-family:var(--f-judul);font-weight:600;font-size:1.15rem;letter-spacing:-.01em}
.lp-opt-t span{color:var(--redup);font-size:.97rem;line-height:1.4}
.lp-bul{width:40px;height:40px;border-radius:50%;border:2.5px solid var(--grafit);display:grid;place-items:center;font-family:var(--f-judul);font-weight:600;font-size:.95rem;background:#fff;color:var(--grafit);transition:background-color .25s ease,color .25s ease,box-shadow .25s ease}
.lp-bul.sm{width:34px;height:34px;font-size:.85rem}
.lp-bul.on,.lp-opt.dipilih .lp-bul{background:radial-gradient(circle at 34% 30%,#5b676c,var(--grafit) 62%);color:#fff;box-shadow:inset 0 0 0 2px rgba(255,255,255,.08)}
.lp-opt.dipilih{border-color:var(--grafit);background:#f4f7f7}
.lp-pil{font-size:.8rem;font-weight:700;padding:3px 11px;border-radius:999px;border:1.5px solid var(--garis);color:var(--redup);white-space:nowrap}
.lp-pil.ok{background:var(--stabilo);border-color:#e9c83b;color:#3a3000}
.lp-opt.off{border-style:dashed;background:transparent;cursor:not-allowed}
.lp-opt.off .lp-bul{border-style:dashed;border-color:#9fb0ad;color:#8ea09d}
.lp-opt.off .lp-opt-t b{color:#667a7d}
.lp-meta{margin:18px 0 0;padding-top:14px;border-top:2px dashed var(--garis);font-size:.97rem;color:var(--redup)}

/* ---------- bagian ---------- */
.lp-sec{padding:84px 0}
.lp-mint{background:var(--mint);border-block:1px solid var(--garis)}
.lp-h2{font-family:var(--f-judul);font-weight:700;font-size:clamp(1.7rem,3.4vw,2.5rem);letter-spacing:-.025em;line-height:1.12;max-width:18em;text-wrap:balance}
.lp-sub{color:var(--redup);font-size:1.12rem;line-height:1.6;max-width:36em;margin:12px 0 0}

/* cara kerja = garis bilangan */
.lp-garis{list-style:none;margin:56px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:28px;position:relative}
.lp-garis::before{content:"";position:absolute;left:-8px;right:-8px;top:12px;height:3px;background:var(--grafit);border-radius:2px}
.lp-garis::after{content:"";position:absolute;right:-22px;top:5px;border-left:14px solid var(--grafit);border-top:8px solid transparent;border-bottom:8px solid transparent}
.lp-garis li{position:relative;padding-top:46px}
.lp-garis li::before{content:"";position:absolute;left:0;top:3px;width:21px;height:21px;border-radius:50%;background:var(--mint);border:3px solid var(--grafit)}
.lp-garis .n{display:block;font-family:var(--f-judul);font-weight:300;font-size:3.2rem;line-height:1;color:var(--teal);letter-spacing:-.04em}
.lp-garis h3{font-family:var(--f-judul);font-weight:600;font-size:1.25rem;margin:10px 0 6px}
.lp-garis p{margin:0;color:var(--redup);line-height:1.6;max-width:26em}

/* bentuk soal = contoh nyata */
.lp-bentuk{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));margin-top:44px;border-top:2px solid var(--grafit)}
.lp-bentuk>div{padding:28px 28px 8px 0}
.lp-bentuk>div+div{padding-left:28px;border-left:1px solid var(--garis)}
.lp-spes{min-height:112px;display:flex;align-items:center;gap:10px}
.lp-kot{width:34px;height:34px;border-radius:9px;border:2.5px solid var(--grafit);display:grid;place-items:center;font-family:var(--f-judul);font-weight:600;font-size:.85rem;background:#fff;color:var(--grafit)}
.lp-kot.on{background:var(--teal);border-color:var(--teal);color:#fff}
.lp-spes-ks{flex-direction:column;align-items:stretch;justify-content:center;gap:8px}
.lp-spes-ks div{display:flex;align-items:center;gap:8px}
.lp-spes-ks i{flex:1;height:8px;border-radius:4px;background:#dbe6e3}
.pk{width:38px;height:30px;border:2px solid var(--garis);border-radius:9px;display:grid;place-items:center;font-weight:700;font-size:.85rem;color:var(--redup);background:#fff}
.pk.on{background:var(--teal);border-color:var(--teal);color:#fff}
.lp-bentuk h3{font-family:var(--f-judul);font-weight:600;font-size:1.2rem;margin:14px 0 6px}
.lp-bentuk p{margin:0 0 16px;color:var(--redup);line-height:1.55}

/* tanya jawab */
.lp-faq{margin-top:36px;border-top:2px solid var(--grafit);max-width:820px}
.lp-faq details{border-bottom:1px solid #b9cfca}
.lp-faq summary{cursor:pointer;list-style:none;padding:18px 44px 18px 0;font-family:var(--f-judul);font-weight:500;font-size:1.1rem;position:relative}
.lp-faq summary::-webkit-details-marker{display:none}
.lp-faq summary::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);font-size:1.6rem;font-weight:300;color:var(--teal)}
.lp-faq details[open] summary::after{content:"–"}
.lp-faq details p{margin:0 0 18px;color:var(--redup);line-height:1.65;max-width:42em}

/* ---------- footer ---------- */
.lp-foot{background:var(--dalam);color:#cfe3df;padding:44px 0 24px}
.lp-foot-brand{display:flex;align-items:center;gap:10px;color:#fff;font-family:var(--f-judul);font-size:1.05rem}
.lp-foot .lp-wrap p{max-width:46em;line-height:1.6;font-size:.97rem;margin:12px 0 0}
.lp-foot .lp-copy{max-width:1080px;margin:28px auto 0;padding:18px 0 0;border-top:1px solid rgba(255,255,255,.16);font-size:.9rem;color:#9fc0ba;width:calc(100% - 40px)}

/* ---------- halaman kartu peserta ---------- */
.lp-prep{padding:44px 0 88px}
.lp-prep-in{display:grid;grid-template-columns:minmax(0,1fr) 400px;gap:56px;align-items:start}
.lp-h1{font-family:var(--f-judul);font-weight:700;font-size:clamp(2rem,4.6vw,3.2rem);letter-spacing:-.03em;line-height:1.08}
.lp-lede.sm{font-size:1.12rem;margin-top:14px}
.lp-petunjuk section{margin-top:34px}
.lp-petunjuk h2{font-family:var(--f-judul);font-weight:600;font-size:1.15rem;padding-bottom:8px;margin-bottom:6px;border-bottom:2px solid var(--grafit)}
.lp-petunjuk ul{margin:0;padding:0;list-style:none}
.lp-petunjuk li{position:relative;padding:8px 0 8px 28px;line-height:1.6}
.lp-petunjuk li::before{content:"";position:absolute;left:2px;top:1.12em;width:10px;height:10px;border:2.5px solid var(--teal);border-radius:3px}

.lp-kartu{position:sticky;top:84px;background:#fff;border:2px solid var(--grafit);border-radius:18px;overflow:hidden;box-shadow:8px 8px 0 #cfe9e3}
.lp-kartu-h{display:flex;align-items:center;gap:12px;padding:16px 20px;background:var(--teal);color:#fff;border-bottom:2px dashed rgba(255,255,255,.55)}
.lp-kartu-h .logo{background:#fff;color:var(--teal);box-shadow:none;width:38px;height:38px;border-radius:50%;flex:none}
.lp-kartu-h b{display:block;font-family:var(--f-judul);font-weight:600;font-size:1.1rem}
.lp-kartu-h div span{font-size:.92rem;opacity:.92}
.lp-kartu-b{padding:24px 22px 24px}
.lp-kartu label{display:block;font-weight:700;font-size:.97rem}
.lp-kartu input{width:100%;font:inherit;font-size:1.15rem;padding:.55em 0 .45em;border:0;border-bottom:2px solid var(--grafit);background:transparent;border-radius:0;margin-bottom:22px;color:var(--tinta)}
.lp-kartu input::placeholder{color:#8a9b9e}
.lp-kartu input:focus{outline:none;border-bottom-color:var(--teal);box-shadow:0 3px 0 -1px var(--teal)}
.lp-kartu .err{margin:-10px 0 12px}
.lp-mulai{width:100%;justify-self:stretch;font-family:var(--f-judul);font-weight:600;font-size:1.05rem;padding:.85em 1em}

/* ---------- layar sempit ---------- */
@media (max-width:940px){
  .lp-hero-in{grid-template-columns:minmax(0,1fr);gap:36px;padding:44px 20px 68px}
  .lp-prep-in{grid-template-columns:minmax(0,1fr);gap:36px}
  .lp-kartu{position:static}
  .lp-sec{padding:64px 0}
}
@media (max-width:760px){
  .lp-links{display:none}
  .lp-garis{grid-template-columns:minmax(0,1fr);gap:34px;margin-top:40px}
  .lp-garis::before{left:9px;right:auto;top:-8px;bottom:-8px;width:3px;height:auto}
  .lp-garis::after{display:none}
  .lp-garis li{padding:0 0 0 52px}
  .lp-garis li::before{left:0;top:6px}
  .lp-bentuk{grid-template-columns:minmax(0,1fr)}
  .lp-bentuk>div{padding:24px 0 6px}
  .lp-bentuk>div+div{padding-left:0;border-left:0;border-top:1px solid var(--garis)}
}
@media (max-width:480px){
  .lp-soal{padding:20px 16px 18px}
  .lp-opt{grid-template-columns:auto minmax(0,1fr)}
  .lp-pil{grid-column:2;justify-self:start}
}