/* Ramda Digital - sistem desain bersama.
   Semua halaman memakai token yang sama: radius, border, font, dan spasi. */
:root{
  --primary:#1D4ED8; --primary-dark:#1E3A8A; --primary-soft:#EFF6FF;
  --ink:#0F172A; --ink-2:#334155; --muted:#64748B;
  --bg:#FFFFFF; --bg-alt:#F5F8FC; --bg-dark:#0B1220;
  --line:#E2E8F0; --cta:#F59E0B; --cta-ink:#111827;
  --r-xl:32px; --r-lg:28px; --r-md:18px; --r-sm:12px; --pill:999px;
  --border:1px solid var(--line);
  --wrap:1180px;
  --font:'Plus Jakarta Sans',system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.6;font-size:16px}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
p{color:var(--ink-2)}
:focus-visible{outline:3px solid var(--primary);outline-offset:3px;border-radius:8px}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
section{padding:96px 0}
.alt{background:var(--bg-alt)}
.dark{background:var(--bg-dark);color:#fff}
.dark p{color:#CBD5E1}
.center{text-align:center}
.head{margin-bottom:56px}
.head p{margin-top:14px}
.stack > * + *{margin-top:16px}

h1,h2,h3{line-height:1.15;letter-spacing:-.025em;text-wrap:balance;color:inherit}
h1{font-size:clamp(2.4rem,6vw,4.5rem);font-weight:800}
h2{font-size:clamp(2rem,4.2vw,3rem);font-weight:800}
h3{font-size:1.25rem;font-weight:700;letter-spacing:-.01em}
.lead{font-size:clamp(1.05rem,1.6vw,1.25rem);max-width:640px}
.eyebrow{display:inline-block;font-size:14px;font-weight:700;color:var(--primary);margin-bottom:12px}
.dark .eyebrow{color:#93C5FD}
.small{font-size:13px;color:var(--muted)}

/* Tombol & tautan: semuanya pill */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:12px 24px;border-radius:var(--pill);font-weight:700;font-size:15px;border:2px solid transparent;cursor:pointer;transition:background .2s,color .2s,transform .2s}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-cta{background:var(--cta);color:var(--cta-ink)}
.btn-cta:hover{transform:translateY(-1px)}
.btn-ghost{border-color:var(--line);background:#fff;color:var(--ink)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-light{background:#fff;color:var(--ink)}
.link{display:inline-flex;align-items:center;gap:4px;font-weight:600;font-size:17px;color:var(--primary)}
.link::after{content:"›";font-size:20px;line-height:1}
.dark .link{color:#93C5FD}
.actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.center .actions{justify-content:center}
.chip{display:inline-flex;align-items:center;min-height:36px;padding:6px 16px;border-radius:var(--pill);border:var(--border);background:#fff;font-size:14px;font-weight:600;color:var(--ink-2)}
.chip.on{background:var(--ink);border-color:var(--ink);color:#fff}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.9);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:var(--border);padding-top:env(safe-area-inset-top,0px)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;letter-spacing:-.02em}
.logo-mark{width:32px;height:32px;border-radius:9px;background:var(--primary);color:#fff;display:grid;place-items:center;font-size:16px;font-weight:800}
.menu{display:flex;gap:28px;font-size:14px;font-weight:600;color:var(--ink-2)}
.menu a:hover,.menu a[aria-current="page"]{color:var(--primary)}
.nav-end{display:flex;gap:12px;align-items:center}
.toggle{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer}
.toggle span{display:block;width:22px;height:2px;margin:5px auto;background:var(--ink);border-radius:2px}
.drawer{display:none}

/* Sub-navigasi sticky (gaya halaman spesifikasi) */
.subnav{position:sticky;top:68px;z-index:40;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:var(--border)}
.subnav .wrap{display:flex;gap:28px;overflow-x:auto;height:52px;align-items:center;font-size:14px;font-weight:600;color:var(--ink-2);scrollbar-width:none}
.subnav a:hover{color:var(--primary)}

/* Placeholder gambar: rasio tetap, sudut mengikuti token */
.media{border-radius:var(--r-lg);background:var(--bg-alt);border:var(--border);aspect-ratio:16/10;display:grid;place-items:center;color:var(--muted);font-size:14px;font-weight:600;overflow:hidden}
.dark .media{background:#131C2E;border-color:#1E293B;color:#94A3B8}

/* Hero */
.hero{padding:104px 0 80px;text-align:center}
.hero .lead{margin:20px auto 36px}
.hero .media{margin-top:64px;aspect-ratio:21/9;border-radius:var(--r-xl)}

/* Kartu & tile */
.tiles{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.tile{border-radius:var(--r-xl);padding:56px 40px;text-align:center;background:var(--bg-alt);display:flex;flex-direction:column;align-items:center;gap:12px;overflow:hidden}
.tile.dark{background:var(--bg-dark)}
.tile p{max-width:440px}
.tile .media{width:100%;margin-top:20px;border-radius:var(--r-lg)}
.card{border:var(--border);border-radius:var(--r-lg);padding:32px;background:#fff;transition:box-shadow .25s,transform .25s}
.card:hover{box-shadow:0 14px 36px -16px rgba(15,23,42,.22);transform:translateY(-3px)}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

/* Split: teks & media berdampingan */
.split{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.split.rev .media{order:-1}
.split .media{aspect-ratio:4/5}

/* Tabel spesifikasi */
.spec{border-top:var(--border)}
.spec-row{display:grid;grid-template-columns:260px 1fr;gap:32px;padding:24px 0;border-bottom:var(--border)}
.spec-row dt{font-weight:700;color:var(--ink)}
.spec-row dd{color:var(--ink-2)}
.spec-row dd ul{list-style:none;display:grid;gap:8px}
.spec-group{margin-bottom:72px}
.spec-group h2{font-size:clamp(1.6rem,3vw,2.2rem);margin-bottom:24px}
.foot{font-size:13px;color:var(--muted);margin-top:8px}
.foot ol{padding-left:18px;display:grid;gap:6px}

/* Artikel: daftar & detail */
.feature{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center;border:var(--border);border-radius:var(--r-xl);padding:24px;background:#fff}
.feature .media{aspect-ratio:4/3}
.feature .body{padding:16px 16px 16px 8px}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px}
.post{display:flex;flex-direction:column;gap:12px}
.post .media{aspect-ratio:16/10}
.post h3{margin-top:4px}
.post a:hover h3{color:var(--primary)}
.meta{display:flex;flex-wrap:wrap;gap:8px 14px;font-size:14px;color:var(--muted);font-weight:600}
.tag{display:inline-flex;align-items:center;min-height:28px;padding:4px 12px;border-radius:var(--pill);background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:700}
.tag.ai{background:#F1F5F9;color:var(--ink-2)}
.pager{display:flex;justify-content:center;gap:10px;margin-top:64px}
.crumb{font-size:14px;color:var(--muted);font-weight:600;margin-bottom:24px}
.crumb a:hover{color:var(--primary)}
.article-head{max-width:760px;margin:0 auto;text-align:left}
.article-head h1{font-size:clamp(2.1rem,4.6vw,3.4rem);margin:16px 0 20px}
.notice{border:var(--border);border-radius:var(--r-md);background:var(--bg-alt);padding:20px 22px;font-size:15px;color:var(--ink-2);margin:32px 0}
.notice b{color:var(--ink)}
.key{border-radius:var(--r-lg);background:var(--primary-soft);padding:28px 32px;margin:32px 0}
.key h3{margin-bottom:12px;font-size:1.05rem}
.key ul{padding-left:20px;display:grid;gap:8px;color:var(--ink-2)}
.prose{max-width:720px;margin:0 auto}
.prose h2{font-size:1.75rem;margin:52px 0 16px}
.prose p{font-size:18px;line-height:1.75;margin-bottom:20px}
.prose .media{margin:40px 0;aspect-ratio:16/9}
.quote{border-left:3px solid var(--primary);padding:8px 0 8px 24px;margin:36px 0;font-size:1.25rem;font-weight:600;color:var(--ink)}
.related{border-top:var(--border);margin-top:88px;padding-top:56px}

/* CTA band (warna solid, tanpa gradasi) */
.band{background:var(--primary-dark);color:#fff;border-radius:var(--r-xl);padding:80px 40px;text-align:center}
.band h2{color:#fff}
.band p{color:#DBEAFE;margin:14px auto 32px;max-width:580px}

/* Footer */
.site-footer{background:var(--bg-dark);color:#94A3B8;padding:80px 0 36px;font-size:15px}
.fgrid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.site-footer h4{color:#fff;font-size:14px;margin-bottom:14px}
.site-footer ul{list-style:none;display:grid;gap:10px}
.site-footer a:hover{color:#fff}
.copy{margin-top:56px;padding-top:24px;border-top:1px solid #1E293B;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}

/* Responsif */
@media (max-width:1024px){
  section{padding:72px 0}
  .menu{display:none}
  .toggle{display:block}
  .nav-end .hide-m{display:none}
  .drawer.open{display:flex;flex-direction:column;position:absolute;left:0;right:0;top:68px;background:#fff;border-bottom:var(--border);padding:8px 20px 20px;gap:2px}
  .drawer a{min-height:48px;display:flex;align-items:center;font-weight:600;border-bottom:1px solid #F1F5F9}
  .split,.feature{grid-template-columns:1fr;gap:40px}
  .split.rev .media{order:0}
  .grid-3,.article-grid{grid-template-columns:repeat(2,1fr)}
  .fgrid{grid-template-columns:1fr 1fr}
  .spec-row{grid-template-columns:1fr;gap:8px}
}
@media (max-width:640px){
  section{padding:56px 0}
  .hero{padding:64px 0 56px}
  .tiles,.grid-3,.article-grid{grid-template-columns:1fr}
  .tile{padding:40px 24px}
  .band{padding:52px 22px;border-radius:var(--r-lg)}
  .actions .btn{width:100%}
  .fgrid{grid-template-columns:1fr}
  .feature{padding:16px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;scroll-behavior:auto!important}
}

/* Tombol chip sebagai filter (elemen button) */
button.chip{cursor:pointer;font:inherit}
button.chip:hover{border-color:var(--primary);color:var(--primary)}
button.chip.on:hover{color:#fff}

/* Formulir */
label{display:grid;gap:8px;font-weight:600;font-size:14px;color:var(--ink-2)}
input,select,textarea{font:inherit;width:100%;min-height:48px;padding:12px 16px;border:var(--border);border-radius:var(--r-sm);background:#fff;color:var(--ink)}
textarea{min-height:140px;resize:vertical}
.form{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form .full{grid-column:1/-1}
.form .actions{margin-top:4px}
@media (max-width:640px){.form{grid-template-columns:1fr}}

/* Pratinjau token di panduan desain (CMS) */
.preview{display:inline-block;width:72px;height:48px;vertical-align:middle;margin-right:14px;border-radius:var(--r-sm)}

/* Gambar: placeholder .media di halaman HTML memakai gambar default otomatis. */
.media{background:url('img/default/media.svg') center/cover no-repeat;color:transparent;font-size:0}
.media-img{display:block;width:100%;height:auto;aspect-ratio:var(--ar,16/10);object-fit:cover;border-radius:var(--r-lg);border:var(--border);background:var(--bg-alt)}
.card .media-img{border-radius:var(--r-md);margin-bottom:4px}