/* Halaman depan: nuansa buku tulis kotak-kotak (tinta biru, kertas berpetak, tanda koreksi merah). */
.landing{--ink:#12254a;--blue:#2457c5;--grid:#dce8f6;--paper:#fbfdff;--red:#d9392f;--hl:#ffe066;--mute:#55627f;--surf:#fff;--page:#f4f8fd;--page-a:rgba(244,248,253,.94);--hover:#e8f0fa;--alt:#eaf2fb;--final:#12254a;--okink:#1a7a3a;margin:0;background:var(--page);color:var(--ink)}
.landing main{display:block}
.ln-wrap{max-width:1120px;margin:0 auto;padding:0 20px}
.landing h1,.landing h2,.landing h3{color:var(--ink);letter-spacing:-.02em}

/* bilah atas */
.ln-top{position:sticky;top:0;z-index:30;background:var(--page-a);backdrop-filter:blur(8px);border-bottom:1px solid var(--grid)}
.ln-top-in{display:flex;align-items:center;gap:24px;min-height:64px}
.ln-brand{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:1.2rem;color:var(--ink);text-decoration:none}
.ln-nav{display:flex;gap:4px;margin-left:12px;flex:1}
.ln-nav a{padding:8px 12px;border-radius:8px;color:var(--mute);text-decoration:none;font-weight:600;font-size:.95rem}
.ln-nav a:hover{color:var(--ink);background:var(--hover)}
.ln-nav .ln-nav-login{display:none}
.ln-top-act{display:flex;align-items:center;gap:12px;margin-left:auto}
.ln-login{font-weight:700;color:var(--blue);text-decoration:none}
.ln-burger{display:none;width:42px;height:42px;border:1px solid var(--grid);border-radius:10px;background:var(--surf);cursor:pointer;position:relative}
.ln-burger span,.ln-burger span::before,.ln-burger span::after{position:absolute;left:11px;right:11px;height:2px;background:var(--ink);content:"";border-radius:2px}
.ln-burger span{top:20px}.ln-burger span::before{left:0;right:0;top:-7px}.ln-burger span::after{left:0;right:0;top:7px}

/* hero */
.ln-hero{padding:56px 0 64px;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:28px 28px;background-position:-1px -1px;border-bottom:1px solid var(--grid)}
.ln-hero-in{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.ln-hero h1{font-size:clamp(2.1rem,4.6vw,3.4rem);line-height:1.08;margin:0 0 18px;font-weight:800}
.ln-lead{font-size:1.15rem;line-height:1.6;color:var(--mute);max-width:34em;margin:0 0 24px}
.ln-actions{display:flex;flex-wrap:wrap;gap:12px;margin:0 0 22px}
.ln-facts{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px 24px;color:var(--mute)}
.ln-facts strong{color:var(--ink)}

/* kertas hitung cepat */
.sheet{background:var(--paper);border:2px solid var(--ink);border-radius:14px;box-shadow:6px 6px 0 var(--ink);padding:18px 20px 22px 44px;position:relative;max-width:420px;width:100%;justify-self:center;
  background-image:linear-gradient(var(--grid) 1px,transparent 1px);background-size:100% 30px;background-position:0 12px}
.sheet::before{content:"";position:absolute;left:30px;top:0;bottom:0;width:2px;background:var(--red);opacity:.55}
.sheet-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:6px;font-weight:700}
.sheet-head span{font-variant-numeric:tabular-nums;color:var(--mute);font-weight:600}
.sheet-q{font-size:clamp(2.4rem,7vw,3.2rem);font-weight:800;text-align:center;padding:10px 0 4px;font-variant-numeric:tabular-nums}
.sheet-a{font-size:2.2rem;font-weight:800;text-align:center;min-height:3.4rem;line-height:3.4rem;border-bottom:3px solid var(--blue);margin:0 0 12px;font-variant-numeric:tabular-nums}
.sheet .keypad{max-width:none}
.sheet-end{text-align:center;padding:10px 0}
.sheet-end .ln-actions{justify-content:center;margin:12px 0 0}
.sheet-score{font-size:2.4rem;font-weight:800;margin:.2em 0}
.sheet-score .tick{color:var(--red)}

/* seksi */
.ln-sec{padding:72px 0}
.ln-alt{background:var(--alt);border-top:1px solid var(--grid);border-bottom:1px solid var(--grid)}
.ln-h2{font-size:clamp(1.6rem,3.2vw,2.3rem);line-height:1.15;margin:0 0 14px;font-weight:800;max-width:22em}
.ln-sub{color:var(--mute);font-size:1.05rem;line-height:1.6;max-width:40em;margin:0 0 28px}
.ln-split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:start;margin-top:28px}
.ln-split-rev{margin-top:0}
.ln-sample{background:var(--surf);border:1px solid var(--grid);border-radius:12px;padding:22px 24px;line-height:1.65;box-shadow:0 1px 0 var(--grid)}
.ln-sample p{margin:0 0 12px}
.ln-tag{display:inline-block;background:var(--hl);color:#12254a;font-weight:700;font-size:.85rem;padding:1px 8px;border-radius:6px;margin-right:6px}
.ln-note{color:var(--mute);font-size:.9rem;margin:0}
.ln-points{list-style:none;margin:0;padding:0;display:grid;gap:18px}
.ln-points li{padding-left:34px;position:relative}
.ln-points li::before,.ln-ticks li::before{content:"✓";position:absolute;left:0;top:-2px;color:var(--red);font-weight:800;font-size:1.3rem}
.ln-points h3{margin:0 0 4px;font-size:1.1rem}.ln-points p{margin:0;color:var(--mute);line-height:1.55}
.ln-levels{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.ln-levels li{background:var(--surf);border:1px solid var(--grid);border-radius:12px;padding:16px;display:flex;flex-direction:column;gap:8px}
.ln-levels h3{margin:0;font-size:1.05rem}
.ln-eg{font-weight:600;line-height:1.45;margin:0;padding:10px 12px;background:var(--paper);border-left:3px solid var(--red);border-radius:4px}
.ln-levels .muted{margin:0;font-size:.9rem}
.ln-ticks{list-style:none;margin:0 0 22px;padding:0;display:grid;gap:12px}
.ln-ticks li{position:relative;padding-left:34px;line-height:1.55}
.ln-mini .table{margin:6px 0 10px}
.ln-plans{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:14px}
.ln-plan{background:var(--surf);border:1px solid var(--grid);border-radius:12px;padding:20px}
.ln-plan h3{margin:0 0 6px}.ln-price{font-size:1.8rem;font-weight:800;margin:0 0 4px}
.ln-faq details,.ln-faq .ln-h2{max-width:760px}
.ln-faq details{border-bottom:1px solid var(--grid);padding:14px 0}
.ln-faq summary{cursor:pointer;font-weight:700;font-size:1.05rem;list-style:none;display:flex;justify-content:space-between;gap:16px}
.ln-faq summary::after{content:"+";font-size:1.4rem;line-height:1;color:var(--blue)}
.ln-faq details[open] summary::after{content:"−"}
.ln-faq summary::-webkit-details-marker{display:none}
.ln-faq p{margin:10px 0 0;color:var(--mute);line-height:1.65}
.ln-final{background:var(--final);color:#fff;text-align:center}
.ln-final .ln-h2{color:#fff;margin-left:auto;margin-right:auto}.ln-final .ln-actions{justify-content:center;margin:20px 0 0}
.ln-final .btn:not(.btn-primary){background:transparent;color:#fff;border-color:#6b82b0}
.ln-foot{background:#0d1c38;color:#b9c6e0;padding:44px 0 24px}
.ln-foot-in{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
.ln-foot .ln-brand{color:#fff}.ln-foot h3{color:#fff;font-size:.95rem;margin:0 0 10px}
.ln-foot nav{display:flex;flex-direction:column;gap:6px}
.ln-foot a{color:#b9c6e0;text-decoration:none}.ln-foot a:hover{color:#fff;text-decoration:underline}
.ln-foot .muted{color:#8798bd}
.ln-copy{margin-top:28px;padding-top:16px;border-top:1px solid #243a63;font-size:.88rem;color:#8798bd}
.ln-sticky{display:none}
.landing :focus-visible{outline:3px solid var(--blue);outline-offset:2px}
html{scroll-behavior:smooth;scroll-padding-top:76px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

@media (max-width:960px){
  .ln-hero-in,.ln-split{grid-template-columns:1fr;gap:32px}
  .ln-levels{grid-template-columns:repeat(2,1fr)}
  .ln-foot-in{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .ln-burger{display:block}
  .ln-login{display:none}
  .ln-nav{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;background:var(--page);border-bottom:1px solid var(--grid);padding:8px 20px 14px;margin:0}
  .ln-nav.open{display:flex}
  .ln-nav .ln-nav-login{display:block}
  .ln-hero{padding:36px 0 44px}
  .ln-sec{padding:48px 0}
  .ln-levels{grid-template-columns:1fr}
  .ln-sticky{display:block;position:sticky;bottom:0;z-index:20;padding:10px 16px calc(10px + env(safe-area-inset-bottom));background:var(--page-a);border-top:1px solid var(--grid)}
  .ln-foot-in{grid-template-columns:1fr}
}
.ln-feat{list-style:none;margin:0 0 12px;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.ln-feat li{background:var(--surf);border:1px solid var(--grid);border-radius:12px;padding:16px}
.ln-feat h3{margin:0 0 6px;font-size:1.05rem}
.ln-feat p{margin:0;color:var(--muted,#555)}
@media (max-width:900px){.ln-feat{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.ln-feat{grid-template-columns:1fr}}

/* Halaman panduan (SEO) */
.info{padding:28px 0 56px}
.info-wrap{max-width:820px}
.info-crumb{font-size:.9rem;color:var(--mute);margin-bottom:12px}
.info-crumb a{color:var(--blue)}
.info-kicker{margin:0;font-weight:800;text-transform:uppercase;letter-spacing:.08em;font-size:.8rem;color:var(--blue)}
.info h1{font-size:clamp(1.7rem,4vw,2.4rem);line-height:1.2;margin:.2em 0 .5em}
.info h2{font-size:1.4rem;margin:1.8em 0 .5em}
.info p,.info li{line-height:1.7}
.info-lead{font-size:1.08rem;color:var(--mute)}
.info-ex{background:var(--surf);border:1px solid var(--grid);border-radius:12px;padding:14px 18px;margin:14px 0}
.info-q{margin:0 0 6px}
.info-steps{margin:6px 0;padding-left:1.3em}
.info-ans{margin:6px 0 0;color:var(--okink)}
.info-cta{background:var(--surf);border:2px solid var(--ink);border-radius:14px;box-shadow:5px 5px 0 var(--ink);padding:6px 22px 18px;margin:32px 0}
.info-faq{border-bottom:1px solid var(--grid);padding:10px 0}
.info-faq summary{cursor:pointer;font-weight:700}
.info-list{list-style:none;padding:0}
.info-list li{background:var(--surf);border:1px solid var(--grid);border-radius:12px;padding:14px 18px;margin:12px 0}
.info-rel{padding-left:1.2em}

.site-links{padding:10px 0;color:var(--mute);font-size:.95rem}
.site-links a{color:var(--blue)}

/* Bagian baru: main tanpa daftar, pasang aplikasi, tombol tema */
.ln-hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:0 0 22px}
.ln-hero-cta .btn{display:inline-flex;align-items:center;gap:8px}
.ln-games{list-style:none;margin:0 0 22px;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.ln-games li{display:flex}
.ln-gcard{flex:1;display:flex;flex-direction:column;gap:6px;background:var(--surf);border:1px solid var(--grid);border-radius:12px;padding:18px;text-decoration:none;color:var(--ink);transition:transform .12s,border-color .12s}
.ln-gcard:hover{border-color:var(--blue);transform:translateY(-2px)}
.ln-gcard strong{font-size:1.1rem}.ln-gcard span{color:var(--mute);line-height:1.5;font-size:.95rem}
.ln-gcard .ln-gic{font-size:2rem;line-height:1}
.ln-team{background:var(--surf);border:1px dashed var(--blue);border-radius:12px;padding:18px;display:flex;flex-direction:column;gap:8px}
.ln-team strong{font-size:1.1rem}.ln-team form{display:flex;gap:8px;flex-wrap:wrap}
.ln-team input{flex:1;min-width:130px;margin:0;letter-spacing:.12em;font-variant-numeric:tabular-nums}
.ln-apps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.ln-apps li{background:var(--surf);border:1px solid var(--grid);border-radius:12px;padding:18px;display:flex;flex-direction:column;gap:8px}
.ln-apps h3{margin:0;font-size:1.1rem}.ln-apps p{margin:0;color:var(--mute);line-height:1.55;flex:1}
.theme-btn{border:1px solid var(--grid);background:var(--surf);color:var(--ink);border-radius:10px;width:40px;height:40px;font-size:1.15rem;cursor:pointer;line-height:1}
.theme-btn:hover{border-color:var(--blue)}
@media (max-width:960px){.ln-games{grid-template-columns:repeat(2,1fr)}.ln-apps{grid-template-columns:1fr}}
@media (max-width:480px){.ln-games{grid-template-columns:1fr}}