:root{
  --bg-dark:#0a0807;--bg-surface:#120d0a;
  --panel-bg:rgba(20,15,12,.68);--panel-bg-hover:rgba(28,20,15,.78);
  --panel-border:rgba(255,255,255,.07);--panel-border-active:rgba(249,115,22,.3);
  --text-primary:#f7f2ea;--text-secondary:#cdbfae;--text-muted:#8a7c6c;
  --sunset-orange:#f97316;--sunset-orange-soft:#fb923c;--amber-gold:#f5b942;--deep-amber:#d97706;--ember-red:#ea580c;
  --gradient-primary:linear-gradient(135deg,#f97316 0%,#f0a63a 50%,#f5b942 100%);
  --gradient-glow:radial-gradient(circle at 50% 0%,rgba(249,115,22,.14) 0%,rgba(245,185,66,.08) 40%,transparent 75%);
  --font-sans:'Plus Jakarta Sans',-apple-system,BlinkMacSystemFont,sans-serif;
  --font-mono:'JetBrains Mono',ui-monospace,monospace;
  --ease:cubic-bezier(.16,1,.3,1);--r:14px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-snap-type:y proximity;-webkit-text-size-adjust:100%;background:var(--bg-dark)}
body{font-family:var(--font-sans);color:var(--text-primary);line-height:1.65;overflow-x:hidden;-webkit-font-smoothing:antialiased}
body::before{content:"";position:fixed;inset:0;background:var(--gradient-glow);z-index:-1;pointer-events:none}
a{color:inherit;-webkit-tap-highlight-color:transparent}
:focus-visible{outline:2px solid var(--amber-gold);outline-offset:3px;border-radius:8px}

/* Progress */
.progress{position:fixed;top:0;left:0;right:0;height:3px;z-index:1100;pointer-events:none}
.progress i{display:block;height:100%;background:var(--gradient-primary);transform:scaleX(0);transform-origin:left;will-change:transform}

/* Nav: pill di atas (desktop), bar di bawah (mobile) */
.nav{position:fixed;top:14px;left:50%;transform:translateX(-50%);z-index:1000;display:flex;gap:2px;padding:5px;border-radius:999px;
  background:rgba(10,8,7,.72);border:1px solid var(--panel-border);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);
  animation:navIn .9s var(--ease) .1s both}
.nav a{position:relative;z-index:1;padding:9px 18px;border-radius:999px;font-size:13px;font-weight:500;color:var(--text-muted);text-decoration:none;transition:color .3s}
.nav a:hover{color:var(--text-primary)}
.nav a.active{color:var(--amber-gold);font-weight:600}
.pill{position:absolute;top:5px;bottom:5px;left:0;width:0;border-radius:999px;background:rgba(245,185,66,.12);border:1px solid rgba(245,185,66,.22);pointer-events:none}
.pill.ready{transition:transform .55s var(--ease),width .55s var(--ease)}
@keyframes navIn{from{opacity:0;transform:translate(-50%,-18px)}}
@keyframes navUp{from{opacity:0;transform:translate(-50%,18px)}}

/* Layout */
main{max-width:820px;margin:0 auto;padding:0 clamp(18px,5vw,32px)}
section{min-height:100vh;min-height:100dvh;display:flex;flex-direction:column;justify-content:center;padding:96px 0;scroll-snap-align:start}
.eyebrow{font:500 12px var(--font-mono);color:var(--sunset-orange-soft);margin-bottom:8px}
.section-title{font-size:clamp(22px,4.2vw,28px);font-weight:700;line-height:1.25;margin-bottom:28px;letter-spacing:-.2px}
p{color:var(--text-secondary);font-size:16px;margin-bottom:16px}
.load-error{font:400 13px var(--font-mono);color:var(--text-muted)}

/* Hero (satu momen animasi saat dibuka) */
#about{padding:110px 0 80px}
#about>*{animation:rise 1s var(--ease) both;animation-delay:calc(.25s + var(--i,0)*.12s)}
@keyframes rise{from{opacity:0;transform:translateY(26px);filter:blur(6px)}}
.hero-title{font-size:clamp(32px,7.2vw,56px);font-weight:800;line-height:1.1;letter-spacing:-.03em;margin-bottom:22px;max-width:16em;
  background:var(--gradient-primary);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
#about p{max-width:36em;font-size:clamp(15px,2.2vw,17px)}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 24px;border-radius:10px;font-size:14px;font-weight:700;text-decoration:none;
  transition:transform .4s var(--ease),box-shadow .4s var(--ease),background-color .3s,border-color .3s}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--gradient-primary);color:var(--bg-dark)}
.btn-ghost{color:var(--text-primary);border:1px solid var(--panel-border);background:var(--panel-bg)}
@media(hover:hover){
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(249,115,22,.28)}
  .btn-ghost:hover{border-color:var(--panel-border-active);background:var(--panel-bg-hover);transform:translateY(-2px)}
}

/* Scroll reveal */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .8s var(--ease) var(--d,0ms),transform .8s var(--ease) var(--d,0ms)}
.reveal.in{opacity:1;transform:none}
.reveal.done{transition:transform .5s var(--ease),opacity .3s,border-color .3s,background-color .3s,box-shadow .5s}

/* Projects */
.project-list{display:flex;flex-direction:column;gap:16px}
.project-card{position:relative;display:grid;overflow:hidden;text-decoration:none;border-radius:var(--r);border:1px solid var(--panel-border);background:var(--panel-bg)}
.project-card::after,.stack-card::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .4s;
  background:radial-gradient(380px circle at var(--mx,50%) var(--my,50%),rgba(249,115,22,.11),transparent 62%)}
.thumb{position:relative;display:flex;align-items:center;justify-content:center;aspect-ratio:16/9;padding:16px;overflow:hidden;text-align:center;font:500 15px var(--font-mono);color:var(--text-muted);
  background:radial-gradient(rgba(245,185,66,.1) 1px,transparent 1.5px) 0 0/16px 16px,var(--bg-surface);border-bottom:1px solid var(--panel-border);
  transition:color .4s,background-position .8s var(--ease)}
.thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:0;transition:opacity .5s var(--ease)}
.thumb.has-img img{opacity:1}
.thumb.has-img .thumb-label{display:none}
.project-content{padding:18px 22px 22px}
.project-title{font-size:18px;font-weight:600;margin-bottom:8px;color:var(--amber-gold);overflow-wrap:anywhere}
.project-content p{font-size:14px;line-height:1.6;margin-bottom:14px;color:var(--text-muted)}
.go{position:absolute;top:14px;right:14px;opacity:.55;color:var(--amber-gold);transition:transform .5s var(--ease),opacity .3s}
.tags{display:flex;gap:6px;flex-wrap:wrap}
.tag{font:400 11px var(--font-mono);padding:4px 9px;border-radius:6px;color:var(--sunset-orange-soft);background:rgba(245,185,66,.08);border:1px solid rgba(245,185,66,.15)}
@media(min-width:720px){
  .project-card{grid-template-columns:220px 1fr}
  .thumb{aspect-ratio:auto;border-bottom:0;border-right:1px solid var(--panel-border);min-height:112px}
  .project-content{padding:22px 28px;align-self:center}
}

/* Stack */
.stack-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.stack-grid>.stack-card:last-child:nth-child(odd){grid-column:1/-1}
.stack-card{position:relative;overflow:hidden;padding:18px;border-radius:var(--r);background:var(--panel-bg);border:1px solid var(--panel-border);--ic:var(--amber-gold)}
.stack-head{display:flex;align-items:flex-start;justify-content:space-between;gap:8px;margin-bottom:18px}
.stack-icon{display:grid;place-items:center;flex:none;width:46px;height:46px;border-radius:12px;color:var(--ic);background:var(--bg-surface);border:1px solid var(--panel-border);
  transition:transform .5s var(--ease),border-color .3s,box-shadow .4s}
.stack-icon svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.chip{font:400 12px var(--font-mono);padding:5px 11px;border-radius:8px;color:var(--text-secondary);border:1px solid rgba(245,185,66,.22);background:rgba(245,185,66,.04)}
.stack-title{font-size:17px;font-weight:700;margin-bottom:6px;letter-spacing:-.01em}
.stack-sub{font:500 12.5px/1.5 var(--font-mono);color:var(--sunset-orange-soft);margin-bottom:12px}
.stack-desc{font-size:13.5px;line-height:1.6;color:var(--text-muted);margin:0}
@media(max-width:340px){.stack-grid{grid-template-columns:1fr}}
@media(hover:hover){.stack-card:hover .stack-icon{border-color:var(--ic);box-shadow:0 0 18px -4px var(--ic);transform:translateY(-2px) scale(1.05)}}

@media(hover:hover){
  .project-card:hover,.stack-card:hover{border-color:var(--panel-border-active);background:var(--panel-bg-hover)}
  .project-card:hover{transform:translateY(-4px);box-shadow:0 18px 40px -18px rgba(249,115,22,.25)}
  .stack-card:hover{transform:translateY(-3px)}
  .project-card:hover::after,.stack-card:hover::after{opacity:1}
  .project-card:hover .go{opacity:1;transform:translate(3px,-3px)}
  .project-card:hover .thumb{color:var(--sunset-orange-soft);background-position:16px 16px,0 0}
}

/* Contact: plain, menyatu dengan background halaman, rata tengah */
#contact{align-items:center;text-align:center}
#contact .section-title{max-width:20em;margin-inline:auto}
#contact p{max-width:32em;margin-inline:auto}
#contact .btn{margin-top:8px}
footer{max-width:820px;margin:0 auto;padding:36px 20px calc(110px + env(safe-area-inset-bottom));text-align:center;font:400 12px var(--font-mono);color:var(--text-muted)}

/* Mobile: nav pindah ke bawah agar mudah dijangkau jempol */
@media(max-width:640px){
  .nav{top:auto;bottom:calc(14px + env(safe-area-inset-bottom));animation-name:navUp;max-width:calc(100vw - 24px)}
  .nav a{padding:11px 15px}
  section{padding:56px 0 112px}
  #about{padding:60px 0 112px}
  .cta .btn{flex:1 1 100%}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-delay:0s!important;transition-duration:.01ms!important;transition-delay:0s!important}
  .reveal{opacity:1;transform:none}
}