:root{
  --c-primary:#1E3A5F; --c-secondary:#2563EB; --c-accent:#A16207; --c-accent-l:#FEF3C7;
  --c-bg:#F8FAFC; --c-fg:#0F172A; --c-card:#fff; --c-muted:#E9EEF5; --c-muted-fg:#475569; --c-border:#CBD5E1;
  --f-head:"Crimson Text",Georgia,"Times New Roman",serif;
  --f-body:"Inter",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --r:10px; --sh:0 1px 2px rgba(15,23,42,.06),0 4px 14px rgba(15,23,42,.06);
  --t:200ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;font-size:clamp(15px,.3vw + 14px,17px)}
body{margin:0;background:var(--c-bg);color:var(--c-fg);font:400 1rem/1.65 var(--f-body)}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-secondary);text-underline-offset:3px}
a:hover{color:var(--c-primary)}
:focus-visible{outline:3px solid var(--c-secondary);outline-offset:2px;border-radius:4px}
h1,h2,h3,h4{font-family:var(--f-head);color:var(--c-primary);line-height:1.2;margin:0 0 .5em;font-weight:700}
h1{font-size:clamp(1.7rem,1rem + 2.2vw,2.6rem)} h2{font-size:clamp(1.35rem,1rem + 1.1vw,1.9rem)} h3{font-size:1.2rem}
p{margin:0 0 1em}
.icon{width:1.2em;height:1.2em;flex:none}
.wrap{width:min(1180px,100% - 2.5rem);margin-inline:auto}
.wrap--narrow{width:min(780px,100% - 2.5rem)}
.screen-reader-text{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip-link{position:absolute;left:-999px;top:0;background:var(--c-primary);color:#fff;padding:.75rem 1rem;z-index:100}
.skip-link:focus{left:0}
main{outline:none}

/* top strip */
.topstrip{background:var(--c-primary);color:#DCE6F2;font-size:.8125rem}
.topstrip__in{display:flex;gap:1rem;align-items:center;justify-content:space-between;height:36px;overflow:hidden}
.topstrip__tr{flex:none;font-size:.8125rem}

/* header */
.site-header{background:var(--c-card);border-bottom:1px solid var(--c-border);position:sticky;top:0;z-index:50}
.site-header__in{display:flex;align-items:center;justify-content:space-between;gap:1rem;height:68px}
.brand{display:flex;align-items:center;gap:.75rem;text-decoration:none;color:var(--c-primary)}
.brand{flex:none;white-space:nowrap}.brand img{width:44px;height:44px;object-fit:contain}
.brand__txt{display:flex;flex-direction:column;line-height:1.15}
.brand__txt strong{font:700 1.15rem var(--f-head)}
.brand__txt small{font-size:.72rem;color:var(--c-muted-fg)}
.primary-nav .menu{list-style:none;margin:0;padding:0;display:flex;gap:0;flex-wrap:nowrap;align-items:center}
.primary-nav a{display:block;padding:.55rem .5rem;border-radius:8px;text-decoration:none;color:var(--c-fg);font-weight:500;font-size:.875rem;white-space:nowrap;transition:background var(--t),color var(--t)}
.primary-nav a:hover,.primary-nav .current-menu-item>a,.primary-nav .current_page_item>a{background:var(--c-muted);color:var(--c-primary)}
.primary-nav .menu-item-has-children{position:relative}
.primary-nav .sub-menu{display:none;position:absolute;left:0;top:100%;min-width:260px;background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r);box-shadow:var(--sh);list-style:none;margin:0;padding:.4rem;z-index:10}
.primary-nav .menu-item-has-children:hover>.sub-menu,.primary-nav .menu-item-has-children:focus-within>.sub-menu{display:block}
.nav-toggle{display:none;background:none;border:1px solid var(--c-border);border-radius:8px;min-width:44px;min-height:44px;color:var(--c-primary);cursor:pointer;align-items:center;justify-content:center}
.nav-toggle .icon{width:24px;height:24px}
.nav-toggle__close{display:none}
.nav-toggle[aria-expanded="true"] .nav-toggle__open{display:none}
.nav-toggle[aria-expanded="true"] .nav-toggle__close{display:inline-flex}

/* buttons */
.btn{display:inline-flex;gap:.5rem;align-items:center;justify-content:center;min-height:44px;padding:.65rem 1.2rem;border-radius:8px;font-weight:600;text-decoration:none;border:2px solid transparent;cursor:pointer;font-family:var(--f-body);font-size:1rem;transition:background var(--t),color var(--t),border-color var(--t)}
.btn--primary{background:#fff;color:var(--c-primary)}
.btn--primary:hover{background:var(--c-accent-l);color:var(--c-primary)}
.btn--ghost{border-color:rgba(255,255,255,.7);color:#fff}
.btn--ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.btn--accent{background:var(--c-accent);color:#fff}
.btn--accent:hover{background:#854D0E;color:#fff}
.searchform .btn--primary{background:var(--c-primary);color:#fff}

/* hero */
.hero{background:linear-gradient(135deg,#1E3A5F 0%,#16304f 55%,#0f2540 100%);color:#fff;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:48px 48px;mask-image:linear-gradient(120deg,transparent 30%,#000);pointer-events:none}
.hero__in{position:relative;z-index:1;padding-block:clamp(2.5rem,7vw,5.5rem);max-width:820px;margin-left:max(1.25rem,calc((100% - 1180px)/2))}
.hero h1{color:#fff;margin-bottom:.4em}
.hero__lead{font-size:clamp(1rem,.9rem + .4vw,1.1rem);color:#DCE6F2;max-width:640px}
.hero__cta{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.75rem}
.eyebrow{font:600 .8rem var(--f-body);letter-spacing:.12em;text-transform:uppercase;color:var(--c-accent);margin-bottom:.6rem}
.hero .eyebrow{color:#FCD34D}

/* sections */
.section{padding-block:clamp(2.5rem,6vw,4.5rem)}
.section--alt{background:var(--c-muted)}
.section__head{margin-bottom:2rem}
.section__head--row{display:flex;justify-content:space-between;align-items:end;gap:1rem;flex-wrap:wrap}
.link-arrow{display:inline-flex;gap:.4rem;align-items:center;font-weight:600;text-decoration:none;min-height:44px}
.grid{display:grid;gap:1.25rem}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}
.grid--5{grid-template-columns:repeat(5,1fr)}

/* cards */
.card{background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r);box-shadow:var(--sh);overflow:hidden;transition:transform var(--t),box-shadow var(--t),border-color var(--t)}
.card--area{padding:1.4rem}
.card--area h3{font-size:1.2rem}
.card--area p{color:var(--c-muted-fg);font-size:.92rem;margin:0}
.card__ic{display:inline-flex;width:48px;height:48px;border-radius:10px;background:var(--c-accent-l);color:var(--c-accent);align-items:center;justify-content:center;margin-bottom:1rem}
.card__ic .icon{width:26px;height:26px}
.card--post{display:flex;flex-direction:column}
.card--post:hover,.card--person:hover{transform:translateY(-3px);border-color:var(--c-primary)}
.card__media{display:block;aspect-ratio:16/10;background:var(--c-muted);overflow:hidden}
.card__media img{width:100%;height:100%;object-fit:cover}
.card__ph{display:flex;width:100%;height:100%;align-items:center;justify-content:center;color:var(--c-primary);background:linear-gradient(135deg,var(--c-muted),#dbe5f1)}
.card__ph .icon{width:44px;height:44px}
.card__body{padding:1.1rem 1.25rem 1.4rem}
.card__title{font-size:1.25rem;margin-bottom:.4rem}
.card__title a{color:var(--c-primary);text-decoration:none}
.card__title a:hover{text-decoration:underline}
.card__ex{color:var(--c-muted-fg);font-size:.94rem;margin:0}
.meta{display:flex;gap:.4rem;flex-wrap:wrap;align-items:center;font-size:.82rem;color:var(--c-muted-fg);margin-bottom:.5rem}
.meta a{color:inherit}
.card--person{display:block;text-decoration:none;text-align:center;padding:1.5rem 1rem;color:var(--c-fg)}
.person__ini,.person__img{width:96px;height:96px;border-radius:50%;margin:0 auto 1rem;object-fit:cover}
.person__ini{display:flex;align-items:center;justify-content:center;background:var(--c-primary);color:#fff;font:700 1.9rem var(--f-head)}
.card--person h3{font-size:1.1rem}
.person__more{color:var(--c-secondary);font-weight:600;font-size:.9rem}

/* cta */
.cta{background:var(--c-primary);color:#DCE6F2}
.cta__in{padding-block:3.5rem;text-align:center}
.cta h2{color:#fff}

/* page header + content */
.pagehead{background:var(--c-muted);border-bottom:1px solid var(--c-border);padding-block:clamp(1.25rem,3vw,2.25rem)}
.pagehead h1{margin:0}
.entry__hero{margin:2rem 0 0;border-radius:var(--r);overflow:hidden}
.prose{padding-block:1.5rem 3rem;font-size:1rem;line-height:1.7}
.prose h2,.prose h3{margin-top:1.8em}
.prose img{border-radius:8px;margin-block:1rem}
.prose table{width:100%;border-collapse:collapse;margin-block:1rem;font-size:.95rem}
.prose th,.prose td{border:1px solid var(--c-border);padding:.55rem .75rem;text-align:left}
.prose th{background:var(--c-muted)}
.prose iframe,.prose video{max-width:100%}
.prose blockquote{margin:1.5rem 0;padding:.5rem 1.25rem;border-left:4px solid var(--c-accent);background:var(--c-accent-l)}
.prose .alignleft{float:left;margin:0 1.2rem 1rem 0}.prose .alignright{float:right;margin:0 0 1rem 1.2rem}.prose .aligncenter{margin-inline:auto}
.postnav{display:flex;justify-content:space-between;gap:1rem;border-top:1px solid var(--c-border);padding-block:1.2rem}
.postnav a{text-decoration:none;font-weight:600}
.navigation.pagination{margin-top:2.5rem}
.nav-links{display:flex;gap:.4rem;flex-wrap:wrap;justify-content:center}
.page-numbers{min-width:44px;min-height:44px;display:inline-flex;align-items:center;justify-content:center;padding:0 .8rem;border:1px solid var(--c-border);border-radius:8px;background:#fff;text-decoration:none;color:var(--c-primary)}
.page-numbers.current{background:var(--c-primary);color:#fff;border-color:var(--c-primary)}
.searchform{display:flex;gap:.5rem;max-width:480px}
.searchform input{flex:1;min-height:44px;padding:.5rem .8rem;border:1px solid var(--c-border);border-radius:8px;font:inherit}
.comments{padding-bottom:3rem}
.comment-list{padding-left:1.2rem}
.comment-form input[type=text],.comment-form input[type=email],.comment-form input[type=url],.comment-form textarea{width:100%;padding:.6rem;border:1px solid var(--c-border);border-radius:8px;font:inherit}
.comment-form input[type=submit]{background:var(--c-primary);color:#fff;border:0;border-radius:8px;min-height:44px;padding:0 1.2rem;font-weight:600;cursor:pointer}

/* footer */
.site-footer{background:#0F1F36;color:#C3D0E0;font-size:.94rem}
.footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr;gap:2.5rem;padding-block:3rem}
.site-footer a{color:#E2EBF6}
.footer__h{font:600 .85rem var(--f-body);letter-spacing:.1em;text-transform:uppercase;color:#FCD34D;margin-bottom:1rem}
.footer__list{list-style:none;margin:0;padding:0;display:grid;gap:.5rem}
.footer__list--ic li{display:flex;gap:.6rem}
.brand--foot{color:#fff;margin-bottom:1rem}.brand--foot small{color:#9fb2c8}
.footer__bar{border-top:1px solid rgba(255,255,255,.12);padding-block:1rem;font-size:.85rem;color:#9fb2c8}

/* responsive */
@media (max-width:1100px){.grid--5{grid-template-columns:repeat(3,1fr)}.grid--4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:1180px){
  .nav-toggle{display:inline-flex}
  .primary-nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--c-card);border-bottom:1px solid var(--c-border);padding:.5rem 1.25rem 1rem;box-shadow:var(--sh)}
  .primary-nav.is-open{display:block}
  .primary-nav .menu{flex-direction:column;align-items:stretch}
  .primary-nav a{padding:.8rem}
  .primary-nav .sub-menu{display:block;position:static;border:0;box-shadow:none;padding-left:1rem}
  .grid--3{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr}
  .topstrip__in>span{display:none}.topstrip__in{justify-content:flex-end}
}
@media (max-width:600px){
  .grid--3,.grid--4,.grid--5{grid-template-columns:1fr}
  .hero__in{margin-inline:auto;width:min(1180px,100% - 2.5rem)}
  .brand__txt strong{font-size:1.1rem}
}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}.card--post:hover,.card--person:hover{transform:none}}

/* translator: satu baris, hanya dropdown */
.topstrip__tr{display:flex;align-items:center;height:36px}
.topstrip__tr #google_language_translator{margin:0;line-height:1}
.topstrip__tr .goog-te-gadget{font-size:0!important;line-height:0;display:flex!important;align-items:center;margin:0}
.topstrip__tr .goog-te-gadget>span,.topstrip__tr .goog-logo-link,.topstrip__tr .goog-te-gadget br{display:none!important}
.topstrip__tr select.goog-te-combo{font:500 .8125rem var(--f-body);height:26px;min-height:26px;padding:0 .4rem;margin:0;border:0;border-radius:6px;background:#fff;color:var(--c-fg);max-width:150px}
.topstrip__tr select.goog-te-combo:focus-visible{outline:2px solid #FCD34D}
@media (max-width:1180px){.site-header{position:sticky}.primary-nav{max-height:calc(100vh - 110px);overflow:auto}}
@media (max-width:1180px) and (min-width:601px){.primary-nav .menu{display:grid;grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.brand__txt small{display:none}.site-header__in{height:60px}.brand img{width:38px;height:38px}.topstrip__in>span{display:none}.prose{font-size:.97rem}}
@media (min-width:1600px){.wrap{width:min(1320px,100% - 4rem)}.wrap--narrow{width:min(860px,100% - 4rem)}}
.topstrip__tr #google_language_translator{display:flex;align-items:center;height:36px}

/* halaman statis: kontainer lebar, teks tetap nyaman dibaca */
.prose--wide>p,.prose--wide>ul,.prose--wide>ol,.prose--wide>h2,.prose--wide>h3,.prose--wide>h4,.prose--wide>blockquote,.prose--wide>.wp-block-heading{max-width:62rem}
.prose--wide>.wp-block-gallery,.prose--wide>figure,.prose--wide>table,.prose--wide>.wp-block-table,.prose--wide>.wp-block-embed,.prose--wide>iframe{max-width:100%}
.prose--wide .wp-block-gallery{display:flex;flex-wrap:wrap;gap:1rem;margin:0 0 1.5rem}
.prose--wide .wp-block-gallery figure{margin:0;flex:1 1 280px}
.prose--wide .wp-block-gallery img{width:100%;height:auto;margin:0}
.prose--wide .wp-block-table,.prose--wide table{display:block;overflow-x:auto}
.prose--wide .wp-block-columns{display:flex;flex-wrap:wrap;gap:1.5rem}
.prose--wide .wp-block-column{flex:1 1 320px;min-width:0}

/* ketahanan terhadap CSS/Tailwind yang tertanam di isi halaman */
.pagehead h1{font-family:var(--f-head)!important;font-size:clamp(1.7rem,1rem + 2.2vw,2.6rem)!important;font-weight:700!important;line-height:1.2!important;color:var(--c-primary)!important;margin:0!important}
.site-header,.site-footer,.topstrip{font-family:var(--f-body)}
.prose--wide .research-card{max-width:none!important}
.prose--wide .research-intro,.prose--wide .publication-intro{max-width:62rem!important}
.prose--wide .research-wrapper{padding-inline:0}

/* kartu bidang riset + inovasi */
a.card--area{display:flex;flex-direction:column;text-decoration:none;color:var(--c-fg);padding:1.25rem}
a.card--area:hover{transform:translateY(-3px);border-color:var(--c-primary);box-shadow:0 6px 20px rgba(30,58,95,.15)}
.area__logo{display:flex;align-items:center;height:56px;margin-bottom:1rem}
.area__logo img{max-height:52px;max-width:100%;width:auto;height:auto;object-fit:contain}
a.card--area h3{margin-bottom:.35rem}
a.card--area p{margin:0 0 .75rem}
.area__innov{border-top:1px solid var(--c-border);padding-top:.75rem;font-size:.875rem;color:var(--c-muted-fg)}
.area__tag{display:block;font-weight:600;color:var(--c-primary);margin-bottom:.2rem}
.area__go{margin-top:auto;display:inline-flex;gap:.35rem;align-items:center;font-size:.85rem;font-weight:600;color:var(--c-secondary)}
@media (min-width:1101px){.grid--5{grid-template-columns:repeat(5,1fr)}}
.area__logo{height:68px}
.area__logo img{max-height:46px}
.area__logo img[src$="batteryhub.png"]{max-height:68px}
.area__logo img[src$="inercharge.png"]{max-height:54px}
.person__img{border:3px solid #fff;box-shadow:0 0 0 2px var(--c-border),0 6px 16px rgba(15,23,42,.15)}
.area__logo img[src$="inerflow.png"]{max-height:60px}
/* tombol share otomatis plugin Twitter tidak ditampilkan di halaman statis */
body.page .prose .twitter-share-button,body.page .prose iframe[id^="twitter-widget"],body.page .prose a[href*="twitter.com/share"],body.page .prose a[href*="twitter.com/intent"]{display:none!important}
body.page .twitter-share{display:none!important}