/* GUNUNGWIN — pos informasi: biru malam, emas puncak, biru lereng, putih salju */
:root{
  --night:#070C2E; --night-2:#0B1440; --slab:#101B52; --slab-2:#16246A; --edge:#22306E;
  --slope:#2A3A85; --peak-blue:#2A44D6; --sky:#7D97FF;
  --gold:#FFCF2E; --gold-soft:#FFE58A; --gold-deep:#C99A0E;
  --snow:#EEF1FB; --ink:#DCE2F7; --dim:#A9B4D9;
  --r:16px; --max:1180px;
  --f-head:"Poppins","Segoe UI",system-ui,-apple-system,Arial,sans-serif;
  --f-body:"Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--night);color:var(--snow);font:16px/1.75 var(--f-body);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--gold);text-underline-offset:3px}
a:hover{color:var(--gold-soft)}
:focus-visible{outline:3px solid var(--sky);outline-offset:3px;border-radius:6px}
.wrap{width:min(var(--max),100% - 40px);margin-inline:auto}
.jump{position:absolute;left:-999px;top:8px;background:var(--gold);color:var(--night);padding:8px 14px;border-radius:8px;z-index:100}
.jump:focus{left:12px}
h1,h2,h3{font-family:var(--f-head);line-height:1.22;color:#fff}

/* Kepala situs */
.masthead{position:sticky;top:0;z-index:50;background:rgba(7,12,46,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--edge)}
.masthead::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:linear-gradient(90deg,transparent,var(--gold) 30%,var(--peak-blue) 70%,transparent);opacity:.55}
.hdr-row{display:flex;align-items:center;gap:18px;min-height:72px}
.brand-mark{display:flex;align-items:center;flex:0 0 auto}
.brand-mark img{width:112px;height:auto}
.menu{display:flex;gap:4px;margin-left:auto}
.menu a{color:var(--ink);text-decoration:none;font:600 15px/1 var(--f-head);padding:10px 12px;border-bottom:2px solid transparent}
.menu a:hover,.menu a[aria-current="page"]{color:#fff;border-bottom-color:var(--gold)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:12px 22px;border-radius:12px;font:700 15px/1 var(--f-head);text-decoration:none;border:1px solid transparent;transition:transform .15s ease,box-shadow .15s ease}
.btn:hover{transform:translateY(-2px)}
.btn-gold{background:linear-gradient(180deg,var(--gold-soft) 0%,var(--gold) 45%,var(--gold-deep) 100%);color:#0A1238;box-shadow:0 4px 0 #8B6A06,0 10px 24px rgba(255,207,46,.22)}
.btn-gold:hover{color:#0A1238}
.btn-ghost{background:rgba(42,68,214,.16);color:var(--snow);border-color:var(--slope)}
.btn-ghost:hover{color:#fff;border-color:var(--sky);background:rgba(42,68,214,.3)}
.hdr-row .btn{min-height:42px;padding:10px 16px}
.burger{display:none}
.burger summary{list-style:none;cursor:pointer;color:var(--snow);font:700 15px/1 var(--f-head);padding:12px 16px;border:1px solid var(--slope);border-radius:12px}
.burger summary::-webkit-details-marker{display:none}
.burger-panel{position:absolute;left:0;right:0;top:72px;background:var(--night-2);border-bottom:2px solid var(--gold);padding:8px 20px 16px}
.burger-panel a{display:block;color:var(--ink);text-decoration:none;font:600 16px/1 var(--f-head);padding:15px 4px;border-bottom:1px solid var(--edge)}
.burger-panel a:hover{color:var(--gold)}

/* Hero beranda */
.hero-peak{position:relative;overflow:hidden;background:
  radial-gradient(700px 360px at 78% 18%,rgba(42,68,214,.42),transparent 70%),
  radial-gradient(420px 260px at 70% 8%,rgba(255,207,46,.14),transparent 70%),
  linear-gradient(180deg,#0A1238 0%,var(--night) 100%)}
.hero-peak .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;padding:64px 0 120px}
.eyebrow{display:inline-block;font:700 12.5px/1 var(--f-head);letter-spacing:.14em;text-transform:uppercase;color:var(--night);background:var(--gold);padding:7px 12px;border-radius:6px}
h1{font-size:clamp(30px,4.3vw,50px);margin:18px 0 16px;letter-spacing:-.015em}
.hero-copy .lead{font-size:18px;color:var(--ink);max-width:590px}
.hero-logo{position:relative;padding:20px}
.hero-logo img{width:100%;filter:drop-shadow(0 18px 30px rgba(0,0,0,.55))}
.spark{position:absolute;top:8%;left:52%;width:90px;height:90px;border-radius:50%;background:radial-gradient(circle,rgba(255,229,138,.55),transparent 65%);animation:twinkle 3.2s ease-in-out infinite}
@keyframes twinkle{0%,100%{opacity:.35;transform:scale(.85)}50%{opacity:1;transform:scale(1.1)}}
.ridge{position:absolute;left:0;right:0;bottom:0;width:100%;height:140px;z-index:1}
.ridge .r1{fill:#111C55}
.ridge .r2{fill:var(--night-2)}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.cta-row.center{justify-content:center}
.adult{display:inline-flex;align-items:center;gap:10px;margin-top:18px;font-size:14px;color:var(--dim)}
.adult b{display:inline-grid;place-items:center;width:36px;height:36px;border-radius:50%;border:2px solid var(--gold);color:var(--gold);font:800 12.5px/1 var(--f-head)}

/* Pintasan */
.shortcut{background:var(--night-2);border-bottom:1px solid var(--edge)}
.shortcut ul{list-style:none;margin:0;padding:14px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.shortcut a{display:inline-block;color:var(--ink);text-decoration:none;font:600 14px/1 var(--f-head);padding:9px 14px;border:1px solid var(--slope);border-radius:999px}
.shortcut a:hover{color:var(--night);background:var(--gold);border-color:var(--gold)}

/* Kepala halaman dalam */
.page-top{position:relative;background:linear-gradient(180deg,#0E1A55 0%,var(--night) 100%);border-bottom:1px solid var(--edge)}
.page-top::after{content:"";position:absolute;left:0;right:0;bottom:0;height:3px;background:linear-gradient(90deg,var(--gold),var(--peak-blue))}
.page-top .wrap{padding:30px 0 38px}
.crumbs{font-size:14px;color:var(--dim)}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0}
.crumbs li+li::before{content:"/";margin-right:6px;color:var(--slope)}
.crumbs a{color:var(--ink);text-decoration:none}
.crumbs a:hover{color:var(--gold)}
.page-top h1{font-size:clamp(28px,3.6vw,42px);margin:14px 0 10px}
.page-top .lead{color:var(--ink);font-size:18px;max-width:820px;margin:0}
.byline{margin-top:14px;font-size:14px;color:var(--dim)}

/* Pita bagian */
section.band{padding:60px 0}
section.band.tint{background:var(--night-2);border-block:1px solid var(--edge)}
.band-top{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:26px;flex-wrap:wrap}
.band-top h2{font-size:clamp(23px,2.7vw,31px);margin:0;padding-left:16px;border-left:4px solid var(--gold)}
.band-top p{margin:8px 0 0;color:var(--dim);max-width:660px}
.grid{display:grid;gap:18px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.card{position:relative;background:var(--slab);border:1px solid var(--edge);border-top:3px solid var(--peak-blue);border-radius:var(--r);padding:24px;transition:border-color .15s ease,transform .15s ease}
.card:hover{border-top-color:var(--gold);transform:translateY(-3px)}
.card h3{font-size:19px;margin:12px 0 8px}
.card p{margin:0;color:var(--dim);font-size:15.5px}
.card a.stretch{color:inherit;text-decoration:none}
.card a.stretch::after{content:"";position:absolute;inset:0;border-radius:var(--r)}
.card .more{display:inline-block;margin-top:14px;font:700 14px/1 var(--f-head);color:var(--gold)}
.card-ico{display:grid;place-items:center;width:50px;height:50px;border-radius:12px;background:linear-gradient(160deg,var(--slab-2),#0B1546);border:1px solid var(--slope)}
.card-ico svg{width:25px;height:25px;stroke:var(--gold);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.tag{display:inline-block;font:700 12px/1 var(--f-head);letter-spacing:.08em;text-transform:uppercase;color:var(--gold);border:1px solid var(--gold);padding:6px 10px;border-radius:6px}
.date{font-size:13.5px;color:var(--dim)}

/* Langkah pos pendakian */
.posts{counter-reset:pos;display:grid;grid-template-columns:repeat(4,1fr);gap:18px;list-style:none;margin:0;padding:0;position:relative}
.posts li{counter-increment:pos;position:relative;background:var(--slab);border:1px solid var(--edge);border-radius:var(--r);padding:58px 20px 22px}
.posts li::before{content:counter(pos);position:absolute;top:16px;left:20px;width:32px;height:32px;display:grid;place-items:center;clip-path:polygon(50% 0,100% 100%,0 100%);background:var(--gold);color:var(--night);font:800 13px/1 var(--f-head);padding-top:8px}
.posts strong{display:block;color:#fff;font-family:var(--f-head);margin-bottom:6px}
.posts span{color:var(--dim);font-size:15px}

/* Tulisan */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:44px;padding:46px 0 64px}
.doc{max-width:780px}
.doc h2{font-size:clamp(22px,2.4vw,28px);margin:42px 0 12px}
.doc h2:first-child{margin-top:0}
.doc h3{font-size:19px;margin:26px 0 8px;color:var(--sky)}
.doc p,.doc li{color:var(--ink)}
.doc ul,.doc ol{padding-left:22px}
.doc li{margin:6px 0}
.doc strong{color:#fff}
.note{border-left:4px solid var(--gold);background:rgba(255,207,46,.07);padding:14px 18px;border-radius:0 12px 12px 0;margin:22px 0;color:var(--ink)}
.aside-box{position:sticky;top:94px;align-self:start;background:var(--slab);border:1px solid var(--edge);border-radius:var(--r);padding:20px}
.aside-box h2{font-size:13.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin:0 0 10px}
.aside-box ul{list-style:none;margin:0;padding:0}
.aside-box li a{display:block;padding:9px 0 9px 14px;color:var(--ink);text-decoration:none;font-size:15px;border-left:2px solid var(--edge)}
.aside-box li a:hover{color:var(--gold);border-left-color:var(--gold)}
.aside-box .btn{width:100%;margin-top:16px}
table{width:100%;border-collapse:collapse;margin:18px 0;font-size:15px}
th,td{border-bottom:1px solid var(--edge);padding:12px;text-align:left;vertical-align:top}
th{background:var(--slab-2);color:var(--gold);font-family:var(--f-head)}
tbody tr:nth-child(even){background:rgba(16,27,82,.5)}
.tbl{overflow-x:auto;border:1px solid var(--edge);border-radius:12px}
.tbl table{margin:0}
dl.term-list dt{font:700 17px/1.4 var(--f-head);color:#fff;margin-top:22px}
dl.term-list dt::before{content:"▲ ";color:var(--gold);font-size:12px;vertical-align:2px}
dl.term-list dd{margin:6px 0 0 20px;color:var(--ink)}
details.faq-item{background:var(--slab);border:1px solid var(--edge);border-radius:12px;margin:12px 0}
details.faq-item summary{cursor:pointer;padding:18px 20px;font:600 17px/1.4 var(--f-head);color:#fff;list-style:none}
details.faq-item summary::-webkit-details-marker{display:none}
details.faq-item summary::after{content:"▾";float:right;color:var(--gold);font-size:20px;line-height:1;transition:transform .15s ease}
details.faq-item[open] summary::after{transform:rotate(180deg)}
details.faq-item .ans{padding:0 20px 18px;color:var(--ink)}
.num-list{counter-reset:k;list-style:none;padding:0}
.num-list li{counter-increment:k;position:relative;padding:4px 0 14px 56px;margin:0}
.num-list li::before{content:counter(k);position:absolute;left:0;top:2px;width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(160deg,var(--peak-blue),var(--slope));border:1px solid var(--sky);color:#fff;font:800 16px/1 var(--f-head)}
.swatch{display:flex;align-items:center;gap:12px}
.swatch i{width:40px;height:40px;border-radius:10px;border:1px solid var(--slope);flex:0 0 auto}
.summit{position:relative;padding:60px 0 64px;text-align:center;background:linear-gradient(180deg,var(--night) 0%,#0E1A55 100%);border-top:1px solid var(--edge)}
.summit h2{font-size:clamp(24px,3vw,34px);margin:0 0 10px}
.summit p{color:var(--ink);margin:0 auto 22px;max-width:640px}

/* Kaki situs */
.site-foot{background:#050925;border-top:3px solid var(--gold);padding:46px 0 28px;font-size:15px}
.foot-cols{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:28px}
.site-foot h2{font-size:13.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);margin:0 0 12px}
.site-foot ul{list-style:none;margin:0;padding:0}
.site-foot li a{display:inline-block;padding:6px 0;color:var(--ink);text-decoration:none}
.site-foot li a:hover{color:var(--gold)}
.site-foot p{color:var(--dim);margin:10px 0 0}
.foot-mark{width:130px}
.soc-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.soc-row a{display:grid;place-items:center;width:44px;height:44px;border-radius:50%;background:var(--slab);border:1px solid var(--slope)}
.soc-row a:hover{background:var(--peak-blue);border-color:var(--sky)}
.soc-row svg{width:21px;height:21px;stroke:var(--gold);fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.foot-base{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:34px;padding-top:20px;border-top:1px solid var(--edge);color:var(--dim);font-size:14px}
.copyline{font-family:var(--f-head);color:var(--ink)}
.copyline a{color:var(--gold);text-decoration:none;font-weight:700}

@media (max-width:1000px){
  .menu{display:none}
  .burger{display:block;margin-left:auto}
  .hdr-row .btn{display:none}
  .hero-peak .wrap{grid-template-columns:1fr;padding:36px 0 110px;gap:16px}
  .hero-logo{order:-1;max-width:420px;width:100%;margin:0 auto}
  .g3,.g4,.posts{grid-template-columns:repeat(2,1fr)}
  .layout{grid-template-columns:1fr}
  .aside-box{position:static}
  .foot-cols{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  .g2,.g3,.g4,.posts{grid-template-columns:1fr}
  .foot-cols{grid-template-columns:1fr}
  section.band{padding:44px 0}
  .hero-copy .lead{font-size:17px}
  .btn{width:100%}
  .ridge{height:90px}
  th,td{padding:10px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important;scroll-behavior:auto!important}}
.mt{margin-top:18px}