/* =========================================================
   Gaya halaman publik okkyc
   Palet "Indigo Kunyit". Ganti warna cukup di bagian :root.
   ========================================================= */
:root{
  --bg:#F3F4F8; --surface:#FFFFFF; --ink:#141A33; --muted:#5A6180;
  --indigo:#23306B; --kunyit:#E3A21A; --line:#D9DCE8;
  --ok:#1F7A4D; --err:#B3261E; --contact-bg:#23306B;
  /* Satu keluarga huruf: Plus Jakarta Sans (karya desainer Indonesia) */
  --f-display:"Plus Jakarta Sans","Segoe UI",system-ui,sans-serif;
  --f-body:"Plus Jakarta Sans","Segoe UI",system-ui,-apple-system,sans-serif;
  --f-mono:"Plus Jakarta Sans","Segoe UI",system-ui,sans-serif;
}
/* Mode gelap: ikut pengaturan perangkat, atau pilihan tombol (data-theme) */
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){--bg:#0D1020; --surface:#161A2E; --ink:#ECEEF7; --muted:#9BA1BD; --indigo:#A3B0F5; --kunyit:#F2B840; --line:#262C47; --ok:#5CC98F; --err:#F2847B; --contact-bg:#1A2150; color-scheme:dark;}}
:root[data-theme="dark"]{--bg:#0D1020; --surface:#161A2E; --ink:#ECEEF7; --muted:#9BA1BD; --indigo:#A3B0F5; --kunyit:#F2B840; --line:#262C47; --ok:#5CC98F; --err:#F2847B; --contact-bg:#1A2150; color-scheme:dark;}

*{box-sizing:border-box}
[hidden]{display:none !important}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:16px;line-height:1.6;margin:0}
img{max-width:100%}
.wrap{max-width:1100px;margin:0 auto;padding-left:max(16px,env(safe-area-inset-left,0px));padding-right:max(16px,env(safe-area-inset-right,0px))}
h1,h2,h3{font-family:var(--f-display);text-wrap:balance;line-height:1.12;margin:0;letter-spacing:-.025em}
p{margin:0}
a{color:inherit}
:focus-visible{outline:2px solid var(--kunyit);outline-offset:3px}
section{padding-block:64px;border-bottom:1px solid var(--line);scroll-margin-top:60px}
section > .wrap{display:grid;gap:28px}

/* Navigasi */
.nav{position:sticky;top:0;z-index:5;background:var(--surface);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-block:14px;flex-wrap:wrap}
.brand{font:800 22px var(--f-display);letter-spacing:-.03em;text-decoration:none;display:flex;align-items:center}
.brand span{color:var(--kunyit)}
.brand-logo{height:36px;width:auto;max-width:200px;display:block;object-fit:contain}
.nav-kanan{display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.tema{width:38px;height:38px;border-radius:999px;border:1px solid var(--line);background:var(--bg);color:var(--ink);display:grid;place-items:center;cursor:pointer;padding:0}
.tema:hover{border-color:var(--muted)}
.tema svg{width:18px;height:18px}
.tema .ikon-matahari{display:none}
:root[data-theme="dark"] .tema .ikon-matahari{display:block}
:root[data-theme="dark"] .tema .ikon-bulan{display:none}
.nav ul{list-style:none;margin:0;padding:0;display:flex;gap:20px;flex-wrap:wrap;font-size:14px;font-weight:500}
.nav a:not(.brand){text-decoration:none;color:var(--muted)}
.nav a:not(.brand):hover{color:var(--ink)}

/* Hero */
.hero{padding-block:72px 64px}
.hero-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:40px;align-items:center}
.eyebrow{font:600 14px var(--f-body);color:var(--indigo)}
.hero h1{font-size:clamp(36px,6vw,62px);font-weight:800;letter-spacing:-.035em;margin-top:12px}
.lead{color:var(--muted);font-size:18px;max-width:52ch;margin-top:18px}
.cta{display:flex;gap:12px;margin-top:26px;flex-wrap:wrap}
.btn{display:inline-block;font:600 14px var(--f-body);padding:12px 20px;border-radius:8px;text-decoration:none;border:1.5px solid var(--ink);background:transparent;color:var(--ink);cursor:pointer}
.btn.primary{background:var(--ink);color:var(--bg);border-color:var(--ink)}
.btn:hover{transform:translateY(-1px)}
.portrait{aspect-ratio:4/5;max-width:100%;width:100%;border-radius:14px;object-fit:cover;border:1px solid var(--line);background:var(--surface)}
.portrait.kosong{display:grid;place-items:center;color:var(--muted);font:500 13px var(--f-mono);
  background:repeating-linear-gradient(45deg,transparent 0 14px,color-mix(in srgb,var(--indigo) 10%,transparent) 14px 15px),var(--surface)}

.sec-head{display:flex;justify-content:space-between;align-items:end;gap:16px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(28px,4vw,40px);font-weight:700;letter-spacing:-.01em}
.sec-head p{color:var(--muted);max-width:46ch}

/* Karya */
.filters{display:flex;gap:8px;flex-wrap:wrap}
.chip{font:500 13px var(--f-body);padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:var(--surface);color:var(--muted);cursor:pointer}
.chip[aria-pressed="true"]{background:var(--indigo);border-color:var(--indigo);color:var(--surface)}
.works{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.work{display:grid;gap:10px;align-content:start;text-decoration:none}
.work .thumb{aspect-ratio:4/3;overflow:hidden;border-radius:10px;border:1px solid var(--line);background:var(--surface)}
.work img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s}
.work:hover img{transform:scale(1.04)}
.work:hover h3{color:var(--indigo)}
.meta{font:600 11px var(--f-mono);color:var(--muted);letter-spacing:.08em;text-transform:uppercase}
.work h3{font-size:20px;font-weight:700}
.work p{color:var(--muted);font-size:14px}
.work.wide{grid-column:span 2}
.work.wide .thumb{aspect-ratio:16/9}
.kosong-info{color:var(--muted);padding:32px;border:1px dashed var(--line);border-radius:10px;text-align:center}

/* Studi kasus */
.case{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start}
.case img{border-radius:10px;border:1px solid var(--line);display:block;width:100%}
.steps{list-style:none;margin:0;padding:0;display:grid;counter-reset:s}
.steps li{display:grid;grid-template-columns:44px 1fr;gap:12px;padding-block:14px;border-top:1px solid var(--line)}
.steps li::before{counter-increment:s;content:counter(s);font:700 22px var(--f-display);color:var(--kunyit)}
.steps b{display:block;font-family:var(--f-display);font-size:17px}
.steps span{color:var(--muted);font-size:14px}

/* Kegiatan mengajar */
.teach{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;display:grid;align-content:start}
.card img{aspect-ratio:16/10;object-fit:cover;width:100%;display:block;border-bottom:1px solid var(--line)}
.card .isi{padding:20px;display:grid;gap:8px}
.card .meta{color:var(--indigo)}
.card h3{font-size:19px}
.card p{color:var(--muted);font-size:14px}

/* Tentang */
.about{display:grid;grid-template-columns:1.3fr 1fr;gap:40px}
.about h2{font-size:clamp(28px,4vw,40px)}
.about .bio{display:grid;gap:14px;margin-top:18px;color:var(--muted);max-width:60ch}
.skills{display:grid;gap:10px;align-content:start}
.skills div{display:flex;justify-content:space-between;gap:12px;border-bottom:1px dashed var(--line);padding-bottom:8px;font-size:15px}
.skills span{color:var(--muted);font-size:13px}

/* Kontak */
.contact{background:var(--contact-bg);color:#fff;border-bottom:0}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.contact h2{font-size:clamp(30px,5vw,48px);font-weight:800}
.contact .sub{opacity:.85;max-width:44ch;margin-top:14px}
.contact .links{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.contact .pill{font:500 14px var(--f-mono);border:1px solid rgba(255,255,255,.4);padding:10px 14px;border-radius:8px;text-decoration:none;color:#fff}
.contact .pill:hover{background:rgba(255,255,255,.1)}
.form{display:grid;gap:14px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.2);border-radius:12px;padding:22px}
.form label{display:grid;gap:6px;font-size:14px;font-weight:500}
.form input,.form textarea{font:15px var(--f-body);padding:11px 12px;border-radius:8px;border:1px solid rgba(255,255,255,.3);background:rgba(0,0,0,.15);color:#fff;width:100%}
.form input::placeholder,.form textarea::placeholder{color:rgba(255,255,255,.5)}
.form textarea{min-height:120px;resize:vertical}
.form .btn{background:var(--kunyit);border-color:var(--kunyit);color:#141A33;justify-self:start}
.hp{position:absolute;left:-9999px}
.flash{padding:12px 16px;border-radius:8px;font-size:14px;font-weight:500}
.flash-ok{background:#E3F4EA;color:#14532D}
.flash-err{background:#FBE4E2;color:#7A1B14}

footer{padding-block:24px;color:var(--muted);font-size:13px}
footer .wrap{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
footer a{color:var(--muted)}

/* Halaman detail karya */
.detail-head{padding-block:48px 32px;border-bottom:0}
.back{font-size:14px;color:var(--muted);text-decoration:none}
.back:hover{color:var(--ink)}
.detail-head h1{font-size:clamp(34px,5.5vw,56px);font-weight:800;letter-spacing:-.02em;margin-top:10px}
.detail-head .lead{max-width:60ch}
.facts{display:flex;gap:28px;flex-wrap:wrap;margin-top:24px}
.facts div{display:grid;gap:2px}
.facts dt{font:500 11px var(--f-mono);text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.facts dd{margin:0;font-weight:600}
.hero-img{border-radius:14px;border:1px solid var(--line);display:block;width:100%}
.prose{max-width:68ch;display:grid;gap:16px;color:var(--ink);font-size:17px}
.gallery{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.gallery figure{margin:0;display:grid;gap:8px}
.gallery img{border-radius:10px;border:1px solid var(--line);width:100%;display:block;cursor:zoom-in}
.gallery figcaption{font-size:13px;color:var(--muted)}
.next{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}

/* Lightbox */
.lightbox{position:fixed;inset:0;background:rgba(10,12,24,.92);display:grid;place-items:center;padding:24px;z-index:20;cursor:zoom-out}
.lightbox img{max-height:90vh;border-radius:8px}

@media (max-width:820px){
  .hero-grid,.case,.about,.contact-grid{grid-template-columns:1fr}
  .portrait{max-width:320px}
  .works,.teach,.next{grid-template-columns:1fr 1fr}
}
@media (max-width:540px){
  .works,.teach,.next,.gallery{grid-template-columns:1fr}
  .work.wide{grid-column:auto}
  .nav ul{gap:14px;font-size:13px}
  section{padding-block:48px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.work img,.btn{transition:none}}