/* ============================================================
   R.A ARCHITECT & CONTRACTOR — Design System
   Signature: cyanotype blueprint linework on warm drafting paper.
   Display: DM Serif Display / Body: Inter / Utility: IBM Plex Mono
   ============================================================ */

:root{
  --ink:        #1c2430;
  --ink-soft:   #2a3444;
  --blueprint:  #2f5d86;
  --blueprint-2:#4f7fa8;
  --blueprint-l:#dbe6ee;
  --paper:      #eee7d7;
  --paper-lt:   #f7f2e6;
  --paper-line: #d8cdae;
  --brick:      #b1592e;
  --brick-dk:   #8c4423;
  --text:       #23282e;
  --text-mute:  #5b6470;
  --white:      #fffdf9;

  --font-display: "DM Serif Display", Georgia, serif;
  --font-body: "Inter", -apple-system, sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --radius: 2px;
  --container: 1180px;
  --edge: clamp(20px, 5vw, 64px);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  background:var(--paper-lt);
  color:var(--text);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4{ font-family:var(--font-display); font-weight:400; margin:0; color:var(--ink); }
p{ margin:0; }
button{ font-family:inherit; cursor:pointer; }

:focus-visible{
  outline:2px solid var(--brick);
  outline-offset:3px;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; scroll-behavior:auto !important; }
}

.wrap{
  max-width:var(--container);
  margin:0 auto;
  padding-left:var(--edge);
  padding-right:var(--edge);
}

/* blueprint grid texture, used sparingly */
.grid-bg{
  background-image:
    linear-gradient(rgba(47,93,134,0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47,93,134,0.08) 1px, transparent 1px);
  background-size:32px 32px;
}

.eyebrow{
  font-family:var(--font-mono);
  font-size:0.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--blueprint);
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:22px; height:1px;
  background:var(--brick);
  display:inline-block;
}

/* ---------------- Header ---------------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:rgba(247,242,230,0.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid var(--paper-line);
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  padding:16px var(--edge);
  max-width:var(--container);
  margin:0 auto;
}
.brand{
  display:flex; align-items:center; gap:10px;
  font-family:var(--font-mono);
  letter-spacing:.02em;
}
.brand-mark{ width:34px; height:34px; flex-shrink:0; }
.brand-name{ display:flex; flex-direction:column; line-height:1.15; }
.brand-name b{ font-size:0.92rem; color:var(--ink); font-weight:700; }
.brand-name span{ font-size:0.62rem; color:var(--text-mute); letter-spacing:.12em; }

.nav-links{ display:flex; gap:30px; align-items:center; }
.nav-links a{
  font-size:0.86rem; color:var(--ink-soft); position:relative; padding:4px 0;
}
.nav-links a.active, .nav-links a:hover{ color:var(--brick); }
.nav-links a.active::after{
  content:""; position:absolute; left:0; right:0; bottom:-2px; height:2px; background:var(--brick);
}
.nav-cta{
  font-family:var(--font-mono); font-size:0.78rem;
  background:var(--ink); color:var(--white) !important;
  padding:10px 18px; border-radius:var(--radius);
  border:1px solid var(--ink);
}
.nav-cta:hover{ background:var(--brick); border-color:var(--brick); }

.nav-toggle{ display:none; background:none; border:none; padding:8px; }
.nav-toggle span{ display:block; width:22px; height:2px; background:var(--ink); margin:5px 0; }

@media (max-width: 880px){
  .nav-links{
    position:fixed; inset:64px 0 0 0; background:var(--paper-lt);
    flex-direction:column; align-items:flex-start; padding:30px var(--edge);
    gap:22px; transform:translateY(-8px); opacity:0; pointer-events:none;
    transition:opacity .25s ease, transform .25s ease;
    border-top:1px solid var(--paper-line);
  }
  .nav-links.open{ opacity:1; transform:translateY(0); pointer-events:auto; }
  .nav-toggle{ display:block; }
  .nav-links a{ font-size:1.05rem; }
}

/* ---------------- Buttons ---------------- */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--font-mono); font-size:0.82rem; letter-spacing:.02em;
  padding:14px 24px; border-radius:var(--radius);
  border:1px solid var(--ink); color:var(--ink);
  transition:background .2s ease, color .2s ease, transform .2s ease;
}
.btn:hover{ background:var(--ink); color:var(--white); transform:translateY(-1px); }
.btn-solid{ background:var(--brick); border-color:var(--brick); color:var(--white); }
.btn-solid:hover{ background:var(--brick-dk); border-color:var(--brick-dk); }
.btn-ghost{ border-color:var(--paper-line); color:var(--text-mute); }
.btn-ghost:hover{ background:transparent; color:var(--ink); border-color:var(--ink); }
.btn svg{ width:14px; height:14px; }

/* ---------------- Hero ---------------- */
.hero{
  position:relative; overflow:hidden;
  padding:70px var(--edge) 0;
  background:var(--paper);
}
.hero-inner{
  max-width:var(--container); margin:0 auto;
  display:grid; grid-template-columns:1.05fr 0.95fr; gap:40px; align-items:center;
  padding-bottom:40px;
}
.hero-eyebrow{ margin-bottom:22px; }
.hero h1{
  font-size:clamp(2.4rem, 5vw, 3.6rem); line-height:1.05; max-width:14ch;
}
.hero h1 em{ font-style:italic; color:var(--blueprint); }
.hero-sub{
  margin-top:22px; max-width:46ch; color:var(--text-mute); font-size:1.05rem;
}
.hero-actions{ margin-top:32px; display:flex; gap:14px; flex-wrap:wrap; }
.hero-stats{
  display:flex; gap:30px; margin-top:44px; padding-top:24px; border-top:1px solid var(--paper-line);
}
.hero-stat b{ font-family:var(--font-display); font-size:1.6rem; display:block; color:var(--ink); }
.hero-stat span{ font-family:var(--font-mono); font-size:0.68rem; color:var(--text-mute); letter-spacing:.06em; }

.blueprint-frame{
  position:relative; background:var(--blueprint);
  border-radius:var(--radius); overflow:hidden;
  aspect-ratio:4/4.4;
  box-shadow:0 30px 60px -20px rgba(28,36,48,0.35);
}
.blueprint-frame svg{ width:100%; height:100%; display:block; }
.blueprint-caption{
  position:absolute; left:16px; bottom:14px; right:16px;
  display:flex; justify-content:space-between;
  font-family:var(--font-mono); font-size:0.62rem; color:rgba(255,255,255,0.72);
  letter-spacing:.05em;
}

.draw-line{
  stroke-dasharray: var(--len, 1200);
  stroke-dashoffset: var(--len, 1200);
  animation: draw 2.6s ease forwards;
}
@keyframes draw{ to{ stroke-dashoffset:0; } }

@media (max-width: 900px){
  .hero-inner{ grid-template-columns:1fr; }
  .blueprint-frame{ order:-1; aspect-ratio:16/10; }
}

/* ---------------- Section scaffolding ---------------- */
section{ padding:96px 0; }
.section-head{
  display:flex; justify-content:space-between; align-items:flex-end; gap:30px;
  margin-bottom:52px;
}
.section-head h2{ font-size:clamp(1.8rem,3.4vw,2.6rem); margin-top:14px; max-width:16ch; }
.section-head p{ max-width:40ch; color:var(--text-mute); margin-bottom:6px; }
.on-paper{ background:var(--paper); }
.on-ink{ background:var(--ink); color:var(--paper-lt); }
.on-ink h2, .on-ink h3, .on-ink h4{ color:var(--white); }
.on-ink .eyebrow{ color:var(--blueprint-2); }
.on-ink .section-head p{ color:rgba(247,242,230,0.6); }

@media (max-width:700px){
  .section-head{ flex-direction:column; align-items:flex-start; }
}

/* ---------------- Services ---------------- */
.service-grid{
  display:grid; grid-template-columns:repeat(3,1fr); gap:1px;
  background:var(--paper-line); border:1px solid var(--paper-line);
}
.service-card{
  background:var(--paper-lt); padding:34px 30px; position:relative;
}
.service-num{
  font-family:var(--font-mono); font-size:0.72rem; color:var(--brick);
}
.service-card h3{ font-size:1.2rem; margin:16px 0 10px; }
.service-card p{ color:var(--text-mute); font-size:0.92rem; }
@media (max-width:880px){ .service-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .service-grid{ grid-template-columns:1fr; } }

/* ---------------- Process (real sequence: floor by floor) ---------------- */
.process{
  display:grid; grid-template-columns:repeat(5,1fr); gap:0;
  counter-reset:step;
  border-top:1px solid rgba(247,242,230,0.16);
}
.process-step{
  padding:30px 22px 30px 0; border-right:1px solid rgba(247,242,230,0.16);
  position:relative;
}
.process-step:last-child{ border-right:none; }
.process-step .step-index{
  font-family:var(--font-mono); font-size:0.75rem; color:var(--blueprint-2);
  display:block; margin-bottom:14px;
}
.process-step h4{ font-size:1.02rem; margin-bottom:8px; }
.process-step p{ font-size:0.85rem; color:rgba(247,242,230,0.6); }
@media (max-width:900px){
  .process{ grid-template-columns:1fr 1fr; }
  .process-step{ border-right:none; border-bottom:1px solid rgba(247,242,230,0.16); padding:24px 0; }
}
@media (max-width:560px){ .process{ grid-template-columns:1fr; } }

/* ---------------- Project cards ---------------- */
.project-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.project-card{
  background:var(--paper-lt); border:1px solid var(--paper-line); border-radius:var(--radius);
  overflow:hidden; transition:transform .25s ease, box-shadow .25s ease;
}
.project-card:hover{ transform:translateY(-4px); box-shadow:0 20px 40px -24px rgba(28,36,48,.3); }
.project-thumb{
  aspect-ratio:4/3; background:var(--blueprint-l); position:relative; overflow:hidden;
}
.project-thumb svg{ width:100%; height:100%; }
.project-tag{
  position:absolute; top:14px; left:14px; font-family:var(--font-mono); font-size:0.62rem;
  background:var(--ink); color:var(--white); padding:5px 10px; letter-spacing:.05em;
}
.project-body{ padding:22px 24px 26px; }
.project-body .eyebrow{ margin-bottom:10px; font-size:0.65rem; }
.project-body h3{ font-size:1.15rem; margin-bottom:8px; }
.project-body p{ color:var(--text-mute); font-size:0.9rem; }
.project-meta{
  display:flex; gap:16px; margin-top:16px; padding-top:16px; border-top:1px solid var(--paper-line);
  font-family:var(--font-mono); font-size:0.68rem; color:var(--text-mute);
}
@media (max-width:960px){ .project-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:620px){ .project-grid{ grid-template-columns:1fr; } }

/* ---------------- Testimonials ---------------- */
.testi-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.testi-card{
  background:var(--paper-lt); border:1px solid var(--paper-line); padding:28px; border-radius:var(--radius);
}
.testi-stars{ color:var(--brick); font-family:var(--font-mono); font-size:0.8rem; letter-spacing:2px; }
.testi-card p{ margin:16px 0 20px; font-size:0.95rem; }
.testi-name{ font-family:var(--font-mono); font-size:0.78rem; color:var(--ink); }
.testi-name span{ display:block; color:var(--text-mute); font-size:0.7rem; margin-top:2px; }
@media (max-width:880px){ .testi-grid{ grid-template-columns:1fr; } }

/* ---------------- Blog ---------------- */
.blog-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:28px; }
.blog-card{ background:var(--paper-lt); border:1px solid var(--paper-line); border-radius:var(--radius); overflow:hidden; }
.blog-thumb{ aspect-ratio:16/10; background:var(--ink); }
.blog-thumb svg{ width:100%; height:100%; }
.blog-body{ padding:24px; }
.blog-date{ font-family:var(--font-mono); font-size:0.68rem; color:var(--text-mute); }
.blog-body h3{ font-size:1.15rem; margin:12px 0 10px; }
.blog-body p{ color:var(--text-mute); font-size:0.9rem; }
.blog-read{ margin-top:16px; display:inline-flex; align-items:center; gap:8px; font-family:var(--font-mono); font-size:0.78rem; color:var(--brick); }
@media (max-width:960px){ .blog-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:620px){ .blog-grid{ grid-template-columns:1fr; } }

/* article */
.article{ padding:60px 0 100px; }
.article-head{ max-width:74ch; margin:0 auto 40px; }
.article-head .eyebrow{ margin-bottom:18px; }
.article-head h1{ font-size:clamp(2rem,4vw,2.8rem); line-height:1.15; }
.article-meta{ margin-top:20px; display:flex; gap:18px; font-family:var(--font-mono); font-size:0.75rem; color:var(--text-mute); }
.article-body{ max-width:74ch; margin:0 auto; font-size:1.05rem; }
.article-body p{ margin-bottom:22px; color:var(--text); }
.article-body h2{ font-size:1.5rem; margin:44px 0 18px; }
.article-body h3{ font-size:1.2rem; margin:32px 0 14px; }
.article-body ul{ margin-bottom:22px; padding-left:0; }
.article-body ul li{ position:relative; padding-left:26px; margin-bottom:10px; color:var(--text); }
.article-body ul li::before{ content:""; position:absolute; left:0; top:9px; width:12px; height:1px; background:var(--brick); }
.article-body blockquote{
  border-left:2px solid var(--brick); padding:4px 0 4px 24px; margin:32px 0; font-family:var(--font-display); font-size:1.3rem; color:var(--ink);
}
.article-divider{ height:1px; background:var(--paper-line); max-width:74ch; margin:48px auto; }

/* ---------------- CTA band ---------------- */
.cta-band{
  background:var(--blueprint); color:var(--white); padding:80px var(--edge);
  text-align:center; position:relative; overflow:hidden;
}
.cta-band h2{ color:var(--white); font-size:clamp(1.8rem,4vw,2.6rem); max-width:20ch; margin:0 auto; }
.cta-band p{ color:rgba(255,255,255,0.75); max-width:50ch; margin:18px auto 34px; }
.cta-actions{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }
.cta-band .btn{ border-color:rgba(255,255,255,0.5); color:var(--white); }
.cta-band .btn:hover{ background:var(--white); color:var(--blueprint); }
.cta-band .btn-solid{ background:var(--brick); border-color:var(--brick); color:var(--white); }
.cta-band .btn-solid:hover{ background:var(--brick-dk); border-color:var(--brick-dk); color:var(--white); }

/* ---------------- Footer ---------------- */
.site-footer{ background:var(--ink); color:rgba(247,242,230,0.7); padding:70px 0 30px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; padding-bottom:50px; border-bottom:1px solid rgba(247,242,230,0.12); }
.footer-brand .brand-name b{ color:var(--white); }
.footer-brand p{ margin-top:16px; max-width:32ch; font-size:0.9rem; color:rgba(247,242,230,0.55); }
.footer-col h5{ font-family:var(--font-mono); font-size:0.72rem; letter-spacing:.1em; text-transform:uppercase; color:rgba(247,242,230,0.4); margin-bottom:18px; }
.footer-col li{ margin-bottom:12px; font-size:0.92rem; }
.footer-col a:hover{ color:var(--white); }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; padding-top:26px; font-size:0.8rem; flex-wrap:wrap; gap:12px; }
.footer-social{ display:flex; gap:16px; }
.footer-social a{ width:34px; height:34px; border:1px solid rgba(247,242,230,0.2); border-radius:50%; display:flex; align-items:center; justify-content:center; }
.footer-social svg{ width:15px; height:15px; }
@media (max-width:880px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .footer-grid{ grid-template-columns:1fr; } }

/* ---------------- Page header (interior pages) ---------------- */
.page-hero{ background:var(--paper); padding:64px 0 60px; border-bottom:1px solid var(--paper-line); }
.page-hero h1{ font-size:clamp(2.1rem,4.4vw,3.1rem); margin-top:16px; max-width:20ch; }
.page-hero p{ margin-top:18px; max-width:56ch; color:var(--text-mute); }
.breadcrumb{ font-family:var(--font-mono); font-size:0.72rem; color:var(--text-mute); margin-bottom:18px; }
.breadcrumb a:hover{ color:var(--brick); }

/* ---------------- Contact ---------------- */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:start; }
.contact-form{ display:grid; gap:18px; }
.field label{ display:block; font-family:var(--font-mono); font-size:0.72rem; letter-spacing:.05em; color:var(--text-mute); margin-bottom:8px; text-transform:uppercase; }
.field input, .field select, .field textarea{
  width:100%; padding:13px 14px; border:1px solid var(--paper-line); background:var(--paper-lt);
  font-family:var(--font-body); font-size:0.95rem; border-radius:var(--radius); color:var(--text);
}
.field textarea{ min-height:130px; resize:vertical; }
.field-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.form-note{ font-size:0.78rem; color:var(--text-mute); margin-top:4px; }
.contact-info{ display:grid; gap:28px; }
.info-item{ display:flex; gap:16px; align-items:flex-start; }
.info-icon{ width:40px; height:40px; border:1px solid var(--paper-line); border-radius:50%; display:flex; align-items:center; justify-content:center; flex-shrink:0; color:var(--blueprint); }
.info-icon svg{ width:17px; height:17px; }
.info-item h4{ font-size:1rem; margin-bottom:4px; }
.info-item p, .info-item a{ color:var(--text-mute); font-size:0.9rem; }
.map-frame{ margin-top:10px; border:1px solid var(--paper-line); border-radius:var(--radius); overflow:hidden; aspect-ratio:16/11; }
.map-frame iframe{ width:100%; height:100%; border:0; }
@media (max-width:880px){ .contact-grid{ grid-template-columns:1fr; } .field-row{ grid-template-columns:1fr; } }

.form-status{ font-family:var(--font-mono); font-size:0.82rem; padding:12px 14px; border-radius:var(--radius); display:none; }
.form-status.show{ display:block; }
.form-status.ok{ background:#e6efe2; color:#3c6b2c; }
.form-status.err{ background:#f4e2df; color:var(--brick-dk); }

/* ---------------- Stats strip ---------------- */
.stats-strip{ display:grid; grid-template-columns:repeat(4,1fr); border-top:1px solid var(--paper-line); border-bottom:1px solid var(--paper-line); }
.stats-strip div{ padding:36px 24px; text-align:center; border-right:1px solid var(--paper-line); }
.stats-strip div:last-child{ border-right:none; }
.stats-strip b{ font-family:var(--font-display); font-size:2.1rem; color:var(--ink); display:block; }
.stats-strip span{ font-family:var(--font-mono); font-size:0.68rem; color:var(--text-mute); letter-spacing:.05em; }
@media (max-width:700px){ .stats-strip{ grid-template-columns:1fr 1fr; } .stats-strip div{ border-bottom:1px solid var(--paper-line); } }

/* ---------------- Values / about ---------------- */
.value-list{ display:grid; grid-template-columns:repeat(2,1fr); gap:1px; background:var(--paper-line); border:1px solid var(--paper-line); }
.value-item{ background:var(--paper-lt); padding:32px; }
.value-item h4{ font-size:1.05rem; margin-bottom:10px; }
.value-item p{ color:var(--text-mute); font-size:0.92rem; }
@media (max-width:700px){ .value-list{ grid-template-columns:1fr; } }

.two-col{ display:grid; grid-template-columns:0.9fr 1.1fr; gap:60px; align-items:center; }
@media (max-width:900px){ .two-col{ grid-template-columns:1fr; } }

.tag-row{ display:flex; flex-wrap:wrap; gap:10px; margin-top:24px; }
.tag-row span{ font-family:var(--font-mono); font-size:0.72rem; border:1px solid var(--paper-line); padding:8px 14px; color:var(--text-mute); border-radius:20px; }

/* back to top / whatsapp float */
.float-wa{
  position:fixed; right:22px; bottom:22px; z-index:60;
  width:54px; height:54px; border-radius:50%; background:#2f5d86; color:#fff;
  display:flex; align-items:center; justify-content:center; box-shadow:0 12px 24px -8px rgba(28,36,48,.5);
  transition:transform .2s ease;
}
.float-wa:hover{ transform:scale(1.06); }
.float-wa svg{ width:24px; height:24px; }