/* ============================================================
   BHK CONSTRUCTION SERVICE — brand tokens
   Matched to e3lab.ca's visual system: forest green + gold on
   warm paper, Bricolage Grotesque / Space Mono / Inter.
   ============================================================ */

:root{
  --forest:#10352B;
  --forest-soft:#17493B;
  --gold:#F2B441;
  --gold-deep:#D9971F;
  --paper:#F4F6F3;
  --surface:#E8EEE9;
  --muted:#54665D;
  --white:#FFFFFF;
  --line:#D9E0DA;

  --font-display:'Bricolage Grotesque', sans-serif;
  --font-body:'Inter', sans-serif;
  --font-mono:'Space Mono', monospace;

  --maxw:1160px;
  --radius:14px;
  --radius-sm:8px;
}

html[lang="ko"]{
  --font-display:'Noto Sans KR', sans-serif;
  --font-body:'Noto Sans KR', sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--forest);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;}
.container{
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 28px;
}
@media (max-width:480px){
  .container{padding:0 20px;}
}
section{padding:104px 0;}
@media (max-width:720px){
  section{padding:64px 0;}
  body{font-size:16px;}
}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  line-height:1.12;
  margin:0 0 .5em;
  letter-spacing:-.01em;
  color:var(--forest);
}
html[lang="ko"] h1,html[lang="ko"] h2,html[lang="ko"] h3,html[lang="ko"] h4{
  font-weight:700;
  letter-spacing:0;
}
p{margin:0 0 1em;}
.lede{font-size:1.15rem;color:var(--muted);max-width:52ch;}

.eyebrow{
  font-family:var(--font-mono);
  font-size:.78rem;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:var(--gold-deep);
  display:block;
  margin-bottom:14px;
}

.visually-hidden{
  position:absolute;width:1px;height:1px;
  padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}
.skip-link{
  position:absolute;left:-999px;top:0;
  background:var(--forest);color:var(--paper);
  padding:12px 18px;z-index:200;border-radius:0 0 8px 0;
  font-family:var(--font-mono);font-size:.85rem;
}
.skip-link:focus{left:0;top:0;}

/* ---------------- Buttons ---------------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-family:var(--font-body);font-weight:600;font-size:.97rem;
  line-height:1.2;
  min-height:48px;
  padding:0 24px;
  border-radius:999px;
  text-decoration:none;
  border:1px solid transparent;
  box-sizing:border-box;
  cursor:pointer;transition:transform .15s ease, background .15s ease, box-shadow .15s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--gold);color:var(--forest);box-shadow:0 1px 0 rgba(16,53,43,.08);}
.btn-primary:hover{background:var(--gold-deep);}
.btn-ghost{background:transparent;border-color:var(--forest);color:var(--forest);}
.btn-ghost:hover{background:var(--forest);color:var(--paper);}
.btn-ghost.on-dark{border-color:var(--surface);color:var(--paper);}
.btn-ghost.on-dark:hover{background:var(--paper);color:var(--forest);}
.btn:active{transform:translateY(1px);}

/* ---------------- Header ---------------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(244,246,243,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.site-header .container{
  display:flex;align-items:center;justify-content:space-between;
  height:76px;gap:24px;
}
.brand{
  display:flex;align-items:center;gap:11px;
  font-family:var(--font-display);
  font-weight:700;font-size:1.3rem;
  text-decoration:none;color:var(--forest);
  white-space:nowrap;
}
.brand-mark{width:27px;height:27px;flex:none;display:block;}
@media (max-width:480px){
  .brand{gap:9px;font-size:1.2rem;}
  .brand-mark{width:24px;height:24px;}
}
.brand small{
  display:block;font-family:var(--font-mono);
  font-size:.6rem;letter-spacing:.08em;font-weight:400;
  color:var(--muted);text-transform:uppercase;
}

.main-nav{display:flex;align-items:center;gap:28px;flex:1;justify-content:flex-end;min-width:0;}
.main-nav ul{list-style:none;display:flex;gap:26px;margin:0;padding:0;flex-wrap:nowrap;}
.main-nav li{flex:none;}
.main-nav a{
  text-decoration:none;font-size:.95rem;font-weight:500;
  color:var(--muted);white-space:nowrap;word-break:keep-all;
}
.main-nav a:hover,.main-nav a:focus-visible{color:var(--forest);}

.header-actions{display:flex;align-items:center;gap:12px;flex:none;}
.header-utility{display:flex;align-items:center;gap:12px;flex:none;}

/* Header CTAs mirror the hero: gold primary + outlined call.
   Between 980px and 1200px the call button is dropped so the nav
   links keep their space; below 980px both live in the menu. */
@media (max-width:1200px){
  .main-nav .btn-call{display:none;}
}
@media (max-width:980px){
  .main-nav .btn-call{display:inline-flex;}
}

.lang-switch{
  display:inline-flex;align-items:stretch;
  border:1px solid var(--line);border-radius:999px;
  overflow:hidden;font-family:var(--font-mono),'Noto Sans KR',sans-serif;font-size:.76rem;
  flex:none;align-self:center;
  min-height:44px;
  box-sizing:border-box;
}
.lang-switch a{
  display:inline-flex;align-items:center;
  padding:0 14px;text-decoration:none;color:var(--muted);font-weight:500;
  white-space:nowrap;flex:none;
}
.lang-switch a[aria-current="true"]{background:var(--forest);color:var(--paper);}
.lang-switch a:not([aria-current="true"]):hover{background:var(--surface);}

.nav-toggle{
  display:none;background:none;border:1px solid var(--forest);
  border-radius:8px;width:44px;height:40px;
  align-items:center;justify-content:center;cursor:pointer;
  flex:none;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";display:block;width:18px;height:2px;background:var(--forest);
  position:relative;transition:transform .2s ease, opacity .2s ease;
}
.nav-toggle span::before{position:absolute;top:-6px;}
.nav-toggle span::after{position:absolute;top:6px;}
.nav-toggle.is-open span{background:transparent;}
.nav-toggle.is-open span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span::after{transform:translateY(-6px) rotate(-45deg);}

body.nav-open{overflow:hidden;}

@media (max-width:980px){
  /* backdrop-filter makes the header a containing block for fixed children,
     which would crush the slide-out menu. Use a solid background instead. */
  .site-header{backdrop-filter:none;background:var(--paper);}
  .main-nav{
    position:fixed;inset:76px 0 0 0;background:var(--paper);
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    padding:20px 28px 40px;
    gap:20px;transform:translateX(100%);transition:transform .25s ease;
    overflow-y:auto;-webkit-overflow-scrolling:touch;
    z-index:99;
  }
  .main-nav.is-open{transform:translateX(0);}
  .main-nav ul{flex-direction:column;gap:0;}
  .main-nav ul a{
    display:block;padding:16px 2px;
    border-bottom:1px solid var(--line);
    font-size:1.1rem;font-weight:500;color:var(--forest);
  }
  .main-nav .header-actions{flex-direction:column;align-items:stretch;width:100%;gap:14px;}
  .main-nav .header-actions .btn{justify-content:center;min-height:52px;}
  .main-nav .lang-switch{align-self:flex-start;}
  .nav-toggle{display:flex;}
}

/* ---------------- Hero ---------------- */
.hero{padding:96px 0 0;}
.hero .container{
  padding-bottom:60px;
}
.hero-copy{max-width:700px;}
.hero h1{font-size:clamp(2.35rem, 5.2vw, 3.9rem);margin-bottom:.3em;text-wrap:balance;}
/* Korean glyphs are roughly twice the width of Latin at the same size,
   so the forced line break needs a smaller floor to avoid overflow. */
html[lang="ko"] .hero h1{font-size:clamp(1.95rem, 4.4vw, 3.4rem);}
/* Smallest phones (iPhone SE): the hard line break can't reflow, so the
   headline steps down again rather than running off the screen. */
@media (max-width:359px){
  .hero h1{font-size:2rem;}
  html[lang="ko"] .hero h1{font-size:1.7rem;}
}
.hero-sub{font-size:1.18rem;color:var(--muted);max-width:48ch;margin-bottom:1.8em;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:0;}

.trust-row{
  border-top:1px solid var(--line);
  padding:26px 0;
}
.trust-row ul{
  list-style:none;margin:0;padding:0;
  display:flex;flex-wrap:wrap;gap:14px 40px;
  font-family:var(--font-mono);font-size:.82rem;color:var(--muted);
}

/* ---------------- Section headers ---------------- */
.section-head{max-width:680px;margin:0 0 56px;}
.section-head h2{font-size:clamp(1.9rem,3.2vw,2.5rem);}
.section-head p{color:var(--muted);font-size:1.08rem;margin:0;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------------- Why it matters (narrative 3-up) ---------------- */
.why-matters{background:var(--white);}
.narrative{display:grid;grid-template-columns:repeat(3,1fr);gap:44px;margin-top:16px;}
@media (max-width:820px){.narrative{grid-template-columns:1fr;}}
.narrative-item .tag{
  font-family:var(--font-mono);font-size:.76rem;color:var(--gold-deep);
  text-transform:uppercase;letter-spacing:.06em;display:block;margin-bottom:10px;
}
.narrative-item h3{font-size:1.25rem;margin-bottom:.45em;}
.narrative-item p{color:var(--muted);margin:0;font-size:.98rem;}

/* ---------------- Services (pillar cards) ---------------- */
.services{background:var(--surface);}
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
@media (max-width:980px){.pillars{grid-template-columns:1fr 1fr;}}
@media (max-width:620px){.pillars{grid-template-columns:1fr;}}
.pillar{
  background:var(--white);border-radius:var(--radius);
  padding:30px 28px;border:1px solid var(--line);
}
.pillar .tag{
  font-family:var(--font-mono);font-size:.72rem;color:var(--muted);
  text-transform:uppercase;letter-spacing:.06em;display:block;margin-bottom:16px;
}
.pillar h3{font-size:1.18rem;margin-bottom:.6em;}
.pillar ul{margin:0;padding:0;list-style:none;}
.pillar li{
  padding:8px 0;color:var(--muted);font-size:.95rem;
  border-top:1px solid var(--line);
}
.pillar li:first-child{border-top:none;}

/* ---------------- How it works (arrow flow) ---------------- */
.process{background:var(--white);}
.flow{
  font-family:var(--font-display);font-weight:600;
  font-size:clamp(1.25rem,2.6vw,1.7rem);line-height:1.5;
  color:var(--forest);max-width:920px;
}
.flow strong{color:var(--gold-deep);font-weight:700;}
.flow .arrow{color:var(--muted);font-weight:400;margin:0 .15em;}

/* ---------------- Reviews ---------------- */
.reviews{background:var(--surface);}
.review-top{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-bottom:36px;}
.rating-badge{
  display:flex;align-items:center;gap:14px;
  background:var(--white);border:1px solid var(--line);
  padding:14px 20px;border-radius:var(--radius-sm);
}
.rating-badge .score{font-family:var(--font-display);font-size:2.1rem;color:var(--forest);line-height:1;}
.rating-badge .stars{color:var(--gold-deep);letter-spacing:.08em;}
.rating-badge .count{color:var(--muted);font-size:.85rem;display:block;}
.review-link{font-family:var(--font-mono);font-size:.85rem;text-decoration:underline;color:var(--forest-soft);}

.quote-card{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius);padding:36px 34px;max-width:760px;
}
.quote-card blockquote{margin:0 0 18px;font-size:1.08rem;line-height:1.7;color:var(--forest);}
.quote-card .stars{color:var(--gold-deep);letter-spacing:.1em;font-size:.95rem;margin-bottom:14px;display:block;}
.quote-card cite{font-style:normal;font-family:var(--font-mono);font-size:.82rem;color:var(--muted);display:block;}

/* ---------------- FAQ accordion ---------------- */
.faq{background:var(--white);}
.faq-list{max-width:820px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  cursor:pointer;list-style:none;padding:22px 4px;
  display:flex;justify-content:space-between;align-items:center;gap:20px;
  font-family:var(--font-display);font-weight:600;font-size:1.08rem;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-family:var(--font-body);font-weight:400;font-size:1.4rem;
  color:var(--gold-deep);flex:none;transition:transform .18s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item .faq-answer{padding:0 4px 24px;color:var(--muted);max-width:66ch;}

/* ---------------- Founder ---------------- */
.founder{background:var(--forest);color:var(--paper);}
.founder .eyebrow{color:var(--gold);}
.founder .container{display:grid;grid-template-columns:.7fr 1.3fr;gap:56px;align-items:center;}
@media (max-width:820px){.founder .container{grid-template-columns:1fr;}}
.founder h2{color:var(--white);}
.founder p{color:#C7D2CB;}
.founder-card{
  background:var(--forest-soft);border-radius:var(--radius);
  padding:32px;text-align:center;
}
.founder-avatar{
  width:84px;height:84px;border-radius:50%;background:var(--gold);
  color:var(--forest);font-family:var(--font-display);font-weight:700;
  font-size:1.6rem;display:flex;align-items:center;justify-content:center;
  margin:0 auto 18px;
}
.founder-card .name{font-family:var(--font-display);font-weight:600;font-size:1.15rem;color:var(--white);}
.founder-card .role{font-family:var(--font-mono);font-size:.78rem;color:#9FB3A8;margin-top:4px;}
.founder-card .credential{
  margin-top:20px;padding-top:18px;border-top:1px solid rgba(244,246,243,.16);
  display:flex;flex-direction:column;gap:4px;
}
.credential-label{
  font-family:var(--font-mono);font-size:.7rem;letter-spacing:.06em;
  text-transform:uppercase;color:var(--gold);
}
.credential-value{font-family:var(--font-mono);font-size:.92rem;color:var(--white);}
.credential-note{font-size:.78rem;color:#9FB3A8;line-height:1.5;margin-top:4px;}

/* ---------------- Why homeowners stay (numbered grid) ---------------- */
.reasons{background:var(--paper);}
.reason-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:36px;}
@media (max-width:920px){.reason-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:560px){.reason-grid{grid-template-columns:1fr;}}
.reason .n{
  font-family:var(--font-mono);color:var(--gold-deep);font-size:.85rem;
  display:block;margin-bottom:10px;
}
.reason h3{font-size:1.08rem;margin-bottom:.4em;}
.reason p{color:var(--muted);font-size:.92rem;margin:0;}

/* ---------------- Service area ---------------- */
.area{background:var(--white);}
.area .container{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
@media (max-width:860px){.area .container{grid-template-columns:1fr;}}
.area-map-frame{
  border-radius:var(--radius);overflow:hidden;aspect-ratio:4/3;
  border:1px solid var(--line);
}
.area-map-frame iframe{width:100%;height:100%;border:0;}
.area-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.area-tags span{
  font-family:var(--font-mono);font-size:.8rem;background:var(--surface);
  padding:7px 14px;border-radius:999px;color:var(--forest-soft);
}

/* ---------------- Contact ---------------- */
.contact{background:var(--forest);color:var(--paper);}
.contact .eyebrow{color:var(--gold);}
.contact .section-head h2{color:var(--white);}
.contact .section-head p{color:#C7D2CB;}
.contact-grid{display:grid;grid-template-columns:1fr 1.1fr;gap:56px;}
@media (max-width:920px){.contact-grid{grid-template-columns:1fr;}}

.contact-side{display:flex;flex-direction:column;gap:24px;}
.trust-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px;}
.trust-list li{
  display:flex;gap:12px;align-items:flex-start;color:#C7D2CB;font-size:.98rem;
}
.trust-list li::before{content:"✓";color:var(--gold);flex:none;font-weight:700;}

.contact-line{display:flex;gap:16px;align-items:flex-start;margin-top:8px;}
.contact-line .label{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.06em;color:#9FB3A8;text-transform:uppercase;display:block;margin-bottom:4px;}
.contact-line .value{font-size:1.2rem;font-weight:600;color:var(--white);text-decoration:none;}

form.quote-form{
  background:var(--paper);color:var(--forest);border-radius:var(--radius);
  padding:34px;display:grid;gap:18px;
}
.field{display:flex;flex-direction:column;gap:6px;}
.field label{
  font-family:var(--font-mono);font-size:.74rem;letter-spacing:.04em;
  text-transform:uppercase;color:var(--muted);
}
.field input,.field select,.field textarea{
  font-family:var(--font-body);font-size:1rem;padding:12px 14px;
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--white);color:var(--forest);
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:2px solid var(--gold-deep);outline-offset:1px;border-color:var(--gold-deep);
}
.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
@media (max-width:520px){.two-col{grid-template-columns:1fr;}}
.hp-field{position:absolute;left:-9999px;top:-9999px;}
.form-note{font-size:.82rem;color:var(--muted);margin-top:-6px;}
form.quote-form .btn-primary{justify-content:center;font-size:1.02rem;}

/* ---------------- Footer ---------------- */
.site-footer{background:var(--forest);color:#9FB3A8;padding:44px 0 30px;border-top:1px solid var(--forest-soft);}
.footer-top{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:32px;
  padding-bottom:28px;
}
.footer-brand{
  font-family:var(--font-display);font-size:1.15rem;font-weight:700;color:var(--white);
  display:flex;align-items:center;gap:10px;
}
.footer-nav ul{list-style:none;display:flex;gap:22px;flex-wrap:wrap;margin:0;padding:0;font-size:.9rem;}
.footer-nav a{text-decoration:none;color:#9FB3A8;}
.footer-nav a:hover{color:var(--white);}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding-top:22px;border-top:1px solid var(--forest-soft);
  font-family:var(--font-mono);font-size:.75rem;
}
.footer-bottom a{color:#9FB3A8;text-decoration:underline;}

/* ---------------- Blog ---------------- */
.post-list{display:grid;gap:2px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;}
.post-card{background:var(--white);padding:28px 30px;text-decoration:none;display:block;transition:background .15s ease;}
.post-card:hover{background:var(--surface);}
.post-card .tag{
  font-family:var(--font-mono);font-size:.72rem;color:var(--gold-deep);
  text-transform:uppercase;letter-spacing:.06em;display:block;margin-bottom:10px;
}
.post-card h3{font-size:1.24rem;margin-bottom:.4em;}
.post-card p{color:var(--muted);margin:0;font-size:.97rem;}

.article{padding:64px 0 96px;}
.article .container{max-width:760px;}
.article-head{margin-bottom:44px;padding-bottom:32px;border-bottom:1px solid var(--line);}
.article-head h1{font-size:clamp(2rem,4.2vw,2.9rem);margin-bottom:.5em;}
.article-head .lede{font-size:1.12rem;margin:0;}
.article-meta{
  font-family:var(--font-mono);font-size:.76rem;color:var(--muted);
  margin-top:18px;display:flex;flex-wrap:wrap;gap:8px 18px;
}
.article-body h2{font-size:clamp(1.4rem,2.6vw,1.75rem);margin:2em 0 .6em;}
.article-body h3{font-size:1.16rem;margin:1.6em 0 .5em;}
.article-body p,.article-body li{color:var(--forest);}
.article-body ul,.article-body ol{padding-left:1.2em;margin:0 0 1.2em;}
.article-body li{margin-bottom:.5em;}
.article-body strong{font-weight:600;}
.callout{
  background:var(--surface);border-left:3px solid var(--gold);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  padding:20px 24px;margin:1.8em 0;
}
.callout p{margin:0;font-size:.98rem;color:var(--forest);}
.article-cta{
  background:var(--forest);color:var(--paper);border-radius:var(--radius);
  padding:34px;margin-top:56px;
}
.article-cta h2{color:var(--white);margin-top:0;font-size:1.4rem;}
.article-cta p{color:#C7D2CB;}
.article-cta .btn{margin-top:8px;}
.back-link{
  font-family:var(--font-mono);font-size:.8rem;color:var(--muted);
  text-decoration:none;display:inline-block;margin-bottom:28px;
}
.back-link:hover{color:var(--forest);}

/* ---------------- Thank-you page ---------------- */
.thanks{min-height:64vh;display:flex;align-items:center;}
.thanks .container{max-width:640px;text-align:center;}
.thanks h1{font-size:clamp(2rem,5vw,2.8rem);}

/* focus visibility */
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--gold-deep);outline-offset:2px;
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *{transition:none !important;animation:none !important;}
}