:root{
  --ink:#0B0B0C;
  --ink-2:#18181B;
  --paper:#F2EFE9;
  --red:#E4262B;
  --red-deep:#A81B1F;
  --line:#28282B;
  --muted:#8F8A82;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--ink);
  color:var(--paper);
  font-family:'IBM Plex Sans',sans-serif;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}

.label{
  font-family:'IBM Plex Mono',monospace;
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--red);
  display:flex;
  align-items:center;
  gap:.5rem;
}
.label::before{
  content:"";
  width:18px;height:1px;
  background:var(--red);
  display:inline-block;
}

h1,h2,h3{
  font-family:'Archivo Black',sans-serif;
  font-weight:400;
  line-height:1.05;
  letter-spacing:-.01em;
  color:var(--paper);
}

.wrap{max-width:1080px;margin:0 auto;padding:0 28px;}

/* NAV — identik dengan compro */
header.site{
  position:sticky;top:0;z-index:50;
  background:rgba(11,11,12,.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.nav-row{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 28px;max-width:1080px;margin:0 auto;
}
.brand{display:flex;align-items:center;gap:10px;}
.brand img{height:34px;width:auto;}
.brand-name{font-family:'Archivo Black',sans-serif;font-size:1rem;letter-spacing:-.01em;color:var(--paper);}
.brand-sub{font-family:'IBM Plex Mono',monospace;font-size:.66rem;color:var(--red);letter-spacing:.08em;text-transform:uppercase;margin-left:2px;}
nav.tabs{display:flex;}
nav.tabs a{
  font-family:'IBM Plex Mono',monospace;
  font-size:.74rem;
  letter-spacing:.06em;
  text-transform:uppercase;
  padding:10px 16px;
  border-left:1px solid var(--line);
  color:var(--muted);
  transition:color .15s ease, background .15s ease;
}
nav.tabs a:last-child{border-right:1px solid var(--line);}
nav.tabs a:hover{color:var(--ink);background:var(--red);border-left-color:var(--red);}
nav.tabs a.active{color:var(--ink);background:var(--red);border-left-color:var(--red);}
.nav-toggle{display:none;font-family:'IBM Plex Mono',monospace;font-size:.8rem;border:1px solid var(--paper);color:var(--paper);padding:8px 12px;background:none;}

/* HERO — document-header aesthetic */
.hero{padding:72px 0 64px;border-bottom:1px solid var(--line);position:relative;}
.doc-frame{
  border:1px solid var(--line);
  border-left:6px solid var(--red);
  background:var(--ink-2);
  padding:36px clamp(20px,5vw,56px);
  position:relative;
}
.doc-frame::before{
  content:"NO. 002 / HRG-CALC";
  position:absolute;top:-11px;left:24px;
  background:var(--ink-2);
  padding:0 8px;
  font-family:'IBM Plex Mono',monospace;
  font-size:.7rem;letter-spacing:.08em;
  color:var(--muted);
}
.stamp{
  position:absolute;top:28px;right:28px;
  width:112px;height:112px;
  border:2px solid var(--red);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  transform:rotate(-9deg);
  color:var(--red);
  text-align:center;
  font-family:'IBM Plex Mono',monospace;
  font-size:.62rem;letter-spacing:.1em;text-transform:uppercase;
  line-height:1.3;
  opacity:.5;
  transition:opacity .3s ease;
}
.stamp.active{opacity:.95;}
.hero h1{font-size:clamp(2.2rem,5.4vw,3.6rem);max-width:16ch;margin:18px 0 20px;}
.hero h1 .accent{color:var(--red);}
.hero p.lede{font-size:1.05rem;color:var(--muted);max-width:52ch;margin-bottom:0;}

/* FIELD CARDS */
.fields{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);margin-top:44px;}
.field-quick{padding:26px 24px;border-left:1px solid var(--line);}
.field-quick:first-child{border-left:none;}
.field-quick .fk{font-family:'IBM Plex Mono',monospace;font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--red);margin-bottom:10px;}
.field-quick .fv{font-family:'Archivo Black',sans-serif;font-size:1.1rem;margin-bottom:8px;color:var(--paper);}
.field-quick p{color:var(--muted);font-size:.9rem;}

/* SECTIONS */
section{padding:88px 0;border-bottom:1px solid var(--line);}
section.tint{background:var(--ink-2);}
section p{color:var(--muted);}
.section-head{margin-bottom:44px;max-width:60ch;}
.section-head h2{font-size:clamp(1.6rem,3.4vw,2.3rem);margin-top:14px;}

/* AD SLOT — identik dengan compro (placeholder, menunggu approval) */
.ad-slot{
  border:1px dashed var(--line);
  min-height:90px;
  display:flex;align-items:center;justify-content:center;
  margin:32px 0;
  background:var(--ink-2);
}
.ad-label{
  font-family:'IBM Plex Mono',monospace;
  font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);
}

/* ================= KALKULATOR ================= */
.calc-layout{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);margin-top:12px;}
@media (max-width:860px){.calc-layout{grid-template-columns:1fr;}}

.calc-panel{background:var(--ink-2);}
.calc-panel-head{
  padding:22px 28px;border-bottom:1px solid var(--line);border-top:4px solid var(--red);
  display:flex;align-items:center;gap:10px;
}
.calc-panel-head .fk{font-family:'IBM Plex Mono',monospace;font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;color:var(--red);}
.calc-panel-head h2{font-size:1.1rem;}

.form-body{padding:8px 28px 28px;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
@media (max-width:520px){.field-row{grid-template-columns:1fr;}}
.field{margin:18px 0;}
label{display:block;font-family:'IBM Plex Mono',monospace;font-size:.72rem;letter-spacing:.06em;text-transform:uppercase;color:var(--muted);margin-bottom:8px;}
input[type=text],input[type=number],select{
  width:100%;padding:12px 13px;border:1px solid var(--line);border-radius:0;
  background:var(--ink);color:var(--paper);font-family:'IBM Plex Mono',monospace;font-size:.95rem;
}
select{font-family:'IBM Plex Sans',sans-serif;}
input:focus,select:focus{outline:none;border-color:var(--red);}
.input-rp{display:flex;align-items:stretch;border:1px solid var(--line);overflow:hidden;background:var(--ink);}
.input-rp span{display:flex;align-items:center;padding:0 10px;background:var(--ink-2);color:var(--muted);font-family:'IBM Plex Mono',monospace;font-size:.88rem;border-right:1px solid var(--line);}
.input-rp input{border:none;flex:1;background:var(--ink);}
.input-rp input:focus{outline:none;}
.hint{font-size:.76rem;color:var(--muted);margin:6px 0 0;}

.advanced{margin:18px 0 0;border-top:1px dashed var(--line);padding-top:14px;}
.advanced summary{cursor:pointer;font-family:'IBM Plex Mono',monospace;font-size:.75rem;letter-spacing:.05em;text-transform:uppercase;color:var(--red);}
.advanced[open] summary{margin-bottom:4px;}

.btn{
  font-family:'IBM Plex Mono',monospace;font-size:.78rem;letter-spacing:.06em;text-transform:uppercase;
  padding:14px 24px;display:inline-block;border:1px solid var(--paper);
  transition:background .15s ease, color .15s ease, border-color .15s ease;
  cursor:pointer;background:none;color:var(--paper);
}
.btn-primary{background:var(--red);color:var(--ink);border-color:var(--red);width:100%;margin-top:22px;font-weight:600;}
.btn-primary:hover{background:var(--paper);border-color:var(--paper);color:var(--ink);}

/* SLIP HASIL */
.slip{padding:8px 28px 28px;}
.slip-meta{display:grid;grid-template-columns:1fr 1fr;gap:14px 16px;margin:18px 0 6px;}
.slip-meta div{display:flex;flex-direction:column;gap:3px;}
.slip-meta span{font-family:'IBM Plex Mono',monospace;font-size:.66rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em;}
.slip-meta strong{font-family:'IBM Plex Mono',monospace;font-size:.9rem;color:var(--paper);font-weight:500;}

.slip-lines{border-top:1px dashed var(--line);margin-top:8px;}
.slip-line{
  display:flex;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line);
  font-size:.9rem;opacity:0;transform:translateY(4px);animation:lineIn .35s ease forwards;
}
.slip-line.placeholder{color:var(--muted);font-style:italic;opacity:1;transform:none;animation:none;}
.slip-line .ll-label{max-width:60%;color:var(--paper);}
.slip-line .ll-label small{display:block;color:var(--muted);font-size:.74rem;margin-top:3px;font-family:'IBM Plex Mono',monospace;font-weight:400;}
.slip-line .ll-val{font-family:'IBM Plex Mono',monospace;font-weight:600;white-space:nowrap;color:var(--paper);}
@keyframes lineIn{to{opacity:1;transform:translateY(0);}}

.slip-total{
  display:flex;justify-content:space-between;align-items:center;margin-top:18px;padding-top:18px;
  border-top:2px solid var(--red);
}
.slip-total span{font-family:'IBM Plex Mono',monospace;font-size:.85rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);}
.slip-total strong{font-family:'Archivo Black',sans-serif;font-size:1.5rem;color:var(--red);}

.slip-foot{font-size:.72rem;color:var(--muted);margin:20px 0 0;line-height:1.6;}

/* INFO / DASAR HUKUM — pakai gaya service-card compro */
.service-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
@media (max-width:760px){.service-cards{grid-template-columns:1fr;}}
.service-card{background:var(--ink-2);padding:32px;border-top:4px solid var(--red);}
.service-card .fk{font-family:'IBM Plex Mono',monospace;font-size:.68rem;color:var(--red);letter-spacing:.1em;text-transform:uppercase;margin-bottom:14px;}
.service-card h3{font-size:1.15rem;margin-bottom:12px;}
.service-card p{color:var(--muted);font-size:.92rem;}

.disclaimer{margin-top:28px;padding:16px 20px;background:var(--ink-2);border-left:2px solid var(--red);font-size:.86rem;color:var(--muted);}

footer{padding:32px 0;background:var(--ink);color:var(--muted);border-top:3px solid var(--red);}
.foot-row{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;font-family:'IBM Plex Mono',monospace;font-size:.75rem;letter-spacing:.04em;}
.foot-links a:hover{color:var(--red);}

/* ================= HALAMAN PENDUKUNG (About/Contact/Privacy/Terms/404) ================= */
textarea{
  width:100%;padding:12px 13px;border:1px solid var(--line);border-radius:0;
  background:var(--ink);color:var(--paper);font-family:'IBM Plex Sans',sans-serif;font-size:.95rem;
  resize:vertical;min-height:120px;
}
textarea:focus{outline:none;border-color:var(--red);}

.sub-hero{padding:56px 0 44px;border-bottom:1px solid var(--line);}
.sub-hero h1{font-size:clamp(1.9rem,4.4vw,2.8rem);margin:14px 0 12px;}
.sub-hero p.lede{font-size:1rem;color:var(--muted);max-width:60ch;}

.legal-content{max-width:70ch;}
.legal-content h2{font-size:1.3rem;margin:36px 0 12px;}
.legal-content h2:first-child{margin-top:0;}
.legal-content p{color:var(--muted);margin-bottom:14px;line-height:1.7;}
.legal-content ul{color:var(--muted);margin:0 0 14px 20px;line-height:1.7;}
.legal-content li{margin-bottom:6px;}
.legal-content .updated{font-family:'IBM Plex Mono',monospace;font-size:.72rem;color:var(--red);text-transform:uppercase;letter-spacing:.06em;margin-bottom:32px;display:block;}

.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);margin-top:12px;}
@media (max-width:860px){.contact-grid{grid-template-columns:1fr;}}
.contact-info{background:var(--ink-2);padding:32px 28px;border-top:4px solid var(--red);}
.contact-info h3{font-size:1rem;margin-bottom:6px;}
.contact-info p{color:var(--muted);font-size:.92rem;margin-bottom:20px;}
.contact-info a.contact-link{display:block;color:var(--paper);font-family:'IBM Plex Mono',monospace;font-size:.9rem;margin-bottom:8px;}
.contact-info a.contact-link:hover{color:var(--red);}

.error-page{padding:120px 0;text-align:center;}
.error-page .error-code{font-family:'Archivo Black',sans-serif;font-size:clamp(4rem,14vw,8rem);color:var(--red);line-height:1;}
.error-page h1{font-size:clamp(1.5rem,3.4vw,2.1rem);margin:12px 0 16px;}
.error-page p{color:var(--muted);max-width:50ch;margin:0 auto 28px;}

@media (max-width:820px){
  nav.tabs{display:none;}
  .nav-toggle{display:block;}
  .fields{grid-template-columns:1fr;}
  .field-quick{border-left:none;border-top:1px solid var(--line);}
  .field-quick:first-child{border-top:none;}
  .stamp{display:none;}
}
@media (prefers-reduced-motion: reduce){
  .slip-line{animation:none;opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}