/* ============================================================
   DokterBangunan.com — Design Tokens
   Palette: Biru Teknik + Abu-abu Gelap, aksen Oranye & Hijau Teknis
   Type: Space Grotesk (display) / Inter (body) / IBM Plex Mono (data)
   Signature: garis gelombang "pulse" (mengacu pada UPV test) sebagai divider
   ============================================================ */

:root{
  --navy-900:#0E2740;
  --navy-800:#153552;
  --navy-700:#1F4E78;
  --navy-100:#E7EEF4;
  --charcoal:#282C31;
  --steel-50:#F4F6F8;
  --steel-100:#EAEEF1;
  --line:#D7DEE4;
  --orange:#E2601D;
  --orange-dark:#B94B12;
  --green:#2F8F5B;
  --white:#FFFFFF;

  --display: 'Space Grotesk', sans-serif;
  --body: 'Inter', sans-serif;
  --mono: 'IBM Plex Mono', monospace;

  --radius: 3px;
  --maxw: 1180px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--body);
  color:var(--charcoal);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:var(--display);
  color:var(--navy-900);
  line-height:1.15;
  margin:0 0 .5em 0;
  font-weight:700;
}
h1{font-size:clamp(2.1rem,4vw,3.2rem);}
h2{font-size:clamp(1.6rem,2.6vw,2.2rem);}
h3{font-size:1.25rem;}
p{margin:0 0 1em 0;}
a{color:var(--navy-700);text-decoration:none;}
a:hover{color:var(--orange);}
img{max-width:100%;display:block;}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.eyebrow{
  font-family:var(--mono);
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--orange);
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--orange);display:inline-block;}

/* ---------- Corner accent (nod to company diagonal stripe identity) ---------- */
.corner-accent{
  position:fixed;
  top:0;left:0;
  width:14px;height:100vh;
  z-index:60;
  background:
    linear-gradient(180deg,var(--charcoal) 0 33%, var(--navy-700) 33% 66%, var(--navy-900) 66% 100%);
  pointer-events:none;
}
body{margin-left:14px;}
@media (max-width:640px){
  .corner-accent{width:8px;}
  body{margin-left:8px;}
}

/* ---------- Header / Nav ---------- */
header.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--white);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 24px;max-width:var(--maxw);margin:0 auto;
}
.logo{
  font-family:var(--display);font-weight:700;font-size:1.15rem;color:var(--navy-900);
  display:flex;align-items:baseline;gap:6px;
}
.logo span{color:var(--orange);}
nav.main-nav{display:flex;gap:26px;align-items:center;flex-wrap:wrap;}
nav.main-nav a{
  font-size:.92rem;font-weight:500;color:var(--charcoal);
  padding:6px 2px;border-bottom:2px solid transparent;
}
nav.main-nav a.active,nav.main-nav a:hover{color:var(--navy-900);border-bottom-color:var(--orange);}
.btn{
  display:inline-block;
  font-family:var(--body);font-weight:600;font-size:.9rem;
  padding:11px 22px;border-radius:var(--radius);
  background:var(--orange);color:var(--white);
  border:1px solid var(--orange);
}
.btn:hover{background:var(--orange-dark);border-color:var(--orange-dark);color:var(--white);}
.btn.btn-outline{background:transparent;color:var(--navy-900);border:1px solid var(--navy-900);}
.btn.btn-outline:hover{background:var(--navy-900);color:var(--white);}
.nav-cta{white-space:nowrap;}
.menu-toggle{display:none;}

@media (max-width:920px){
  .nav-wrap{flex-wrap:wrap;gap:12px;}
  nav.main-nav{display:none;width:100%;flex-direction:column;gap:0;order:3;}
  nav.main-nav.open{display:flex;}
  nav.main-nav a{padding:12px 0;border-bottom:1px solid var(--line);width:100%;}
  .menu-toggle{
    display:block;background:none;border:1px solid var(--line);border-radius:var(--radius);
    padding:8px 12px;font-family:var(--mono);cursor:pointer;
  }
}

/* ---------- Hero ---------- */
.hero{
  background:linear-gradient(135deg,var(--navy-900) 0%,var(--navy-700) 100%);
  color:var(--white);
  padding:88px 0 96px;
  position:relative;overflow:hidden;
}
.hero .container{position:relative;z-index:2;}
.hero h1{color:var(--white);}
.hero p.lead{color:var(--navy-100);font-size:1.15rem;max-width:640px;}
.hero-actions{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap;}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
@media (max-width:860px){.hero-grid{grid-template-columns:1fr;}}

/* Blueprint grid backdrop */
.blueprint-bg{
  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:38px 38px;
  z-index:0;
}

/* ---------- Pulse wave divider (signature element) ---------- */
.pulse-divider{width:100%;height:56px;display:block;}
.pulse-divider path{fill:none;stroke:var(--orange);stroke-width:2;}
.pulse-divider.on-dark path{stroke:var(--navy-100);opacity:.55;}
section.section{padding:72px 0;}
section.section.alt{background:var(--steel-50);}
section.section.navy{background:var(--navy-900);color:var(--white);}
section.section.navy h2,section.section.navy h3{color:var(--white);}

/* ---------- Cards / grids ---------- */
.grid{display:grid;gap:26px;}
.grid.cols-2{grid-template-columns:repeat(2,1fr);}
.grid.cols-3{grid-template-columns:repeat(3,1fr);}
.grid.cols-4{grid-template-columns:repeat(4,1fr);}
@media (max-width:920px){.grid.cols-3,.grid.cols-4{grid-template-columns:repeat(2,1fr);}}
@media (max-width:640px){.grid.cols-2,.grid.cols-3,.grid.cols-4{grid-template-columns:1fr;}}

.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;position:relative;
}
.card .tag{
  font-family:var(--mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;
  color:var(--navy-700);background:var(--navy-100);padding:4px 9px;border-radius:2px;display:inline-block;margin-bottom:12px;
}
.card h3{margin-bottom:8px;}
.card p{color:#4A5158;font-size:.94rem;margin-bottom:0;}
.card.service{border-top:3px solid var(--navy-700);}
.card.service:nth-child(3n+2){border-top-color:var(--orange);}
.card.service:nth-child(3n){border-top-color:var(--green);}

/* ---------- Portfolio gallery ---------- */
.portfolio-item{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--white);
}
.portfolio-item .img-wrap{aspect-ratio:4/3;overflow:hidden;background:var(--steel-100);}
.portfolio-item img{width:100%;height:100%;object-fit:cover;}
.portfolio-item .meta{padding:16px 18px;}
.portfolio-item .meta .tag{margin-bottom:8px;}
.portfolio-item h3{font-size:1.02rem;margin-bottom:4px;}
.portfolio-item .loc{font-family:var(--mono);font-size:.78rem;color:#63696F;}

.filter-bar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:36px;}
.filter-bar a{
  font-family:var(--mono);font-size:.8rem;padding:8px 14px;border:1px solid var(--line);
  border-radius:20px;color:var(--charcoal);
}
.filter-bar a.active,.filter-bar a:hover{background:var(--navy-900);color:var(--white);border-color:var(--navy-900);}

/* ---------- Table (project list) ---------- */
table.proj-table{width:100%;border-collapse:collapse;font-size:.9rem;}
table.proj-table th,table.proj-table td{
  text-align:left;padding:12px 14px;border-bottom:1px solid var(--line);vertical-align:top;
}
table.proj-table th{
  font-family:var(--mono);font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;
  color:var(--navy-700);background:var(--steel-50);
}
table.proj-table tr:hover td{background:var(--steel-50);}

/* ---------- Stats strip ---------- */
.stats-strip{display:flex;gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.stats-strip .stat{flex:1;padding:22px 20px;border-right:1px solid var(--line);}
.stats-strip .stat:last-child{border-right:none;}
.stats-strip .num{font-family:var(--mono);font-size:1.7rem;font-weight:700;color:var(--navy-900);}
.stats-strip .label{font-size:.82rem;color:#5A6067;}
@media (max-width:640px){.stats-strip{flex-wrap:wrap;}.stats-strip .stat{flex:1 1 50%;border-bottom:1px solid var(--line);}}

/* ---------- Timeline / process ---------- */
.process-step{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--line);}
.process-step:last-child{border-bottom:none;}
.process-step .idx{font-family:var(--mono);font-size:1.4rem;font-weight:700;color:var(--orange);width:52px;flex-shrink:0;}

/* ---------- Footer ---------- */
footer.site-footer{background:var(--charcoal);color:#C9CDD1;padding:56px 0 26px;}
footer.site-footer h4{color:var(--white);font-size:.95rem;margin-bottom:14px;}
footer.site-footer a{color:#C9CDD1;}
footer.site-footer a:hover{color:var(--orange);}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}
@media (max-width:860px){.footer-grid{grid-template-columns:1fr 1fr;}}
.footer-bottom{
  border-top:1px solid #40454B;margin-top:40px;padding-top:20px;
  font-family:var(--mono);font-size:.76rem;color:#8B9096;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
}

/* ---------- Form ---------- */
form.contact-form{display:grid;gap:16px;}
form.contact-form label{font-size:.85rem;font-weight:600;display:block;margin-bottom:6px;}
form.contact-form input,form.contact-form select,form.contact-form textarea{
  width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:var(--radius);
  font-family:var(--body);font-size:.94rem;background:var(--white);
}
form.contact-form .row-2{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
@media (max-width:640px){form.contact-form .row-2{grid-template-columns:1fr;}}

/* ---------- Page hero (inner pages, smaller) ---------- */
.page-hero{background:var(--navy-900);color:var(--white);padding:52px 0 60px;position:relative;overflow:hidden;}
.page-hero .container{position:relative;z-index:2;}
.page-hero h1{color:var(--white);margin-bottom:6px;}
.breadcrumb{font-family:var(--mono);font-size:.78rem;color:var(--navy-100);opacity:.75;}

/* utility */
.mt-0{margin-top:0;}
.text-center{text-align:center;}
.max-60{max-width:640px;}
.max-60.center{margin-left:auto;margin-right:auto;}