/* ================================================================
   PR CONSTRUCTIONS — design tokens
   Palette: blueprint on concrete paper
   ================================================================ */
:root{
  --paper:#F5F4EF;
  --paper-alt:#ECEAE2;
  --ink:#14181D;
  --ink-soft:#3C434B;
  --blue:#0E4DA4;
  --blue-deep:#0A356F;
  --amber:#F2A900;
  --line:#D9D6CC;
  --line-dark:#2A313A;
  --white:#FFFFFF;
  --radius:6px;
  --disp:'Archivo',sans-serif;
  --body:'Public Sans',sans-serif;
  --mono:'IBM Plex Mono',monospace;
  --shadow:0 12px 40px rgba(20,24,29,.10);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--body);color:var(--ink);background:var(--paper);line-height:1.65;font-size:16.5px}
img,svg{max-width:100%}
a{color:inherit}

.skip-link{position:absolute;left:-999px;top:0;background:var(--amber);padding:.6rem 1rem;z-index:200}
.skip-link:focus{left:0}

h1,h2,h3,h4,h5{font-family:var(--disp);line-height:1.12;letter-spacing:-.015em}
h1{font-size:clamp(2.4rem,5.4vw,4.2rem);font-weight:800}
h2{font-size:clamp(1.8rem,3.4vw,2.7rem);font-weight:700;margin-bottom:1.2rem}
h3{font-size:1.25rem;font-weight:700}
h4{font-size:1.05rem;font-weight:700}

.wrap{max-width:1180px;margin:0 auto;padding:0 clamp(1.1rem,4vw,2.5rem)}
.wrap-narrow{max-width:840px}
.section{padding:clamp(4rem,8vw,7rem) 0;border-top:1px solid var(--line)}
.section-alt{background:var(--paper-alt)}
.section-dark{background:var(--ink);color:var(--paper)}
.section-dark h2,.section-dark h3,.section-dark h4{color:var(--white)}
.section-dark .eyebrow{color:var(--amber)}
.section-dark .dim-line{background:var(--amber)}

/* eyebrows — blueprint drawing labels */
.eyebrow{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;color:var(--blue);display:flex;align-items:center;gap:.7rem;margin-bottom:1.4rem;text-transform:uppercase}
.dim-line{display:inline-block;width:42px;height:1px;background:var(--blue);position:relative}
.dim-line::before,.dim-line::after{content:"";position:absolute;top:-3px;width:1px;height:7px;background:currentColor;background:inherit}
.dim-line::before{left:0}.dim-line::after{right:0}

.mono-meta{font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;color:var(--ink-soft);text-transform:uppercase}
.section-dark .mono-meta{color:#9AA3AD}

/* ============ NAV ============ */
.nav{position:sticky;top:0;z-index:100;background:rgba(245,244,239,.85);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.nav-inner{max-width:1180px;margin:0 auto;padding:.7rem clamp(1.1rem,4vw,2.5rem);display:flex;align-items:center;justify-content:space-between;gap:1rem}
.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none}
.brand-mark{font-family:var(--disp);font-weight:800;font-size:1.15rem;background:var(--blue);color:#fff;padding:.35rem .55rem;border-radius:var(--radius);letter-spacing:.02em}
.brand-text{font-family:var(--disp);font-weight:700;font-size:1rem;line-height:1.15}
.brand-text em{display:block;font-family:var(--mono);font-style:normal;font-size:.62rem;letter-spacing:.12em;color:var(--ink-soft);text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:1.4rem}
.nav-links a{text-decoration:none;font-size:.92rem;font-weight:500;color:var(--ink-soft)}
.nav-links a:hover{color:var(--blue)}
.nav-cta{background:var(--ink);color:#fff!important;padding:.55rem 1rem;border-radius:var(--radius);font-weight:600}
.nav-cta:hover{background:var(--blue)}
.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:.4rem}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;transition:.25s}

/* ============ HERO ============ */
.hero{position:relative;overflow:hidden;padding:clamp(3.5rem,7vw,6.5rem) 0 clamp(3rem,6vw,5rem)}
.hero-grid-bg{position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:48px 48px;opacity:.5;mask-image:radial-gradient(ellipse 90% 80% at 50% 0%,#000 40%,transparent 100%)}
.hero-inner{position:relative;max-width:1180px;margin:0 auto;padding:0 clamp(1.1rem,4vw,2.5rem);display:grid;grid-template-columns:1.2fr .8fr;gap:3rem;align-items:center}
.hero-sub{font-size:1.12rem;color:var(--ink-soft);max-width:46ch;margin:1.2rem 0 1.8rem}
.hero-actions{display:flex;gap:.9rem;flex-wrap:wrap}
.hero-stats{display:grid;grid-template-columns:repeat(4,auto);gap:2.2rem;margin-top:2.6rem}
.hero-stats dt{font-family:var(--disp);font-weight:800;font-size:1.6rem}
.hero-stats dd{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;color:var(--ink-soft);text-transform:uppercase;margin-top:.15rem}

/* blueprint SVG */
.blueprint{width:100%;height:auto}
.bp-lines path,.bp-lines rect{fill:none;stroke:var(--blue);stroke-width:2;stroke-linecap:square;stroke-dasharray:900;stroke-dashoffset:900;animation:draw 2.6s ease forwards}
.bp-lines rect{animation-delay:.8s}
.bp-dims .dim{stroke:var(--amber);stroke-width:1;fill:none}
.bp-dims text{font-family:var(--mono);font-size:12px;fill:var(--amber);letter-spacing:.08em}
@keyframes draw{to{stroke-dashoffset:0}}

/* ============ BUTTONS ============ */
.btn{display:inline-block;font-family:var(--disp);font-weight:700;font-size:.95rem;padding:.85rem 1.6rem;border-radius:var(--radius);text-decoration:none;border:1px solid transparent;cursor:pointer;transition:transform .15s,background .2s}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-deep)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-full{width:100%}

/* ============ LAYOUT PIECES ============ */
.split{display:grid;grid-template-columns:1fr 1.2fr;gap:clamp(2rem,5vw,4.5rem);align-items:start}
.check-list{list-style:none;margin-top:1.1rem}
.check-list li{padding-left:1.6rem;position:relative;margin:.5rem 0}
.check-list li::before{content:"";position:absolute;left:0;top:.5em;width:.7em;height:.35em;border-left:2px solid var(--amber);border-bottom:2px solid var(--amber);transform:rotate(-45deg)}

.cards-4{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem;margin-top:2.5rem}
.cards-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem;margin-top:2.5rem}
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem;transition:transform .2s,box-shadow .2s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.section-dark .card{background:#1B2129;border-color:var(--line-dark)}
.section-dark .card p{color:#B7BEC7}
.card-num{font-family:var(--mono);font-size:.72rem;letter-spacing:.16em;color:var(--amber);border:1px solid var(--line-dark);display:inline-block;padding:.25rem .55rem;border-radius:4px;margin-bottom:1rem}
.card h3{margin-bottom:.6rem}
.card p{font-size:.95rem;color:var(--ink-soft)}

.why-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.6rem}
.why-item{border-left:2px solid var(--blue);padding-left:1.1rem}
.why-item p{font-size:.95rem;color:var(--ink-soft);margin-top:.3rem}

/* ============ PROJECTS ============ */
.tabs{display:flex;gap:.5rem;flex-wrap:wrap;margin:1.8rem 0 2rem}
.tab{font-family:var(--mono);font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;background:transparent;border:1px solid var(--line);border-radius:999px;padding:.5rem 1.1rem;cursor:pointer;color:var(--ink-soft)}
.tab.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.proj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.4rem}
.proj{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .2s,box-shadow .2s}
.proj:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.proj h3{padding:1.1rem 1.3rem .2rem}
.proj .mono-meta{padding:0 1.3rem}
.proj p:last-child{padding:.5rem 1.3rem 1.3rem;font-size:.93rem;color:var(--ink-soft)}
.proj-media{height:170px;position:relative;background-size:cover}
.grad-1{background:linear-gradient(135deg,#0E4DA4,#123B72 60%,#14181D)}
.grad-2{background:linear-gradient(135deg,#F2A900,#C77800 55%,#7A4A00)}
.grad-3{background:linear-gradient(135deg,#3C434B,#14181D)}
.grad-4{background:linear-gradient(135deg,#1E6FD9,#0E4DA4 60%,#0A356F)}
.grad-5{background:linear-gradient(135deg,#5B6672,#2A313A)}
.grad-6{background:linear-gradient(135deg,#0A356F,#14181D)}
.proj-media::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.14) 1px,transparent 1px);background-size:32px 32px}
.proj-tag{position:absolute;top:.8rem;left:.8rem;z-index:1;font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;padding:.3rem .6rem;border-radius:4px;text-transform:uppercase}
.proj-tag.done{background:var(--paper);color:var(--ink)}
.proj-tag.live{background:var(--amber);color:var(--ink)}
.proj.hide{display:none}

/* ============ LAND / BLOG ============ */
.land-card .price{font-family:var(--disp);font-weight:800;font-size:1.5rem;margin-top:1.1rem;color:var(--blue)}
.land-card .price span{font-family:var(--mono);font-size:.7rem;font-weight:400;color:var(--ink-soft);letter-spacing:.08em;text-transform:uppercase}
.blog-card h3{font-size:1.1rem;margin:.6rem 0 .5rem}
.blog-card{cursor:pointer}

/* ============ PROCESS ============ */
.process{list-style:none;counter-reset:step;margin-top:2.5rem;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1.6rem 2rem}
.process li{counter-increment:step;position:relative;padding:1.2rem 0 0;border-top:1px solid var(--line-dark)}
.process li::before{content:"0" counter(step);font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;color:var(--amber);position:absolute;top:-.55em;background:var(--ink);padding-right:.7rem}
.process p{font-size:.93rem;color:#B7BEC7;margin-top:.35rem}

/* ============ ESTIMATOR ============ */
.est-form{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem;display:flex;flex-direction:column;gap:1rem;box-shadow:var(--shadow)}
.section-dark .est-form{background:#1B2129;border-color:var(--line-dark)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
.est-form label{display:flex;flex-direction:column;gap:.35rem;font-family:var(--mono);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-soft)}
.section-dark .est-form label{color:#9AA3AD}
.est-form input,.est-form select,.est-form textarea{font-family:var(--body);font-size:.98rem;padding:.7rem .8rem;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);color:var(--ink)}
.section-dark .est-form input,.section-dark .est-form select,.section-dark .est-form textarea{background:#14181D;border-color:var(--line-dark);color:var(--paper)}
.est-form input:focus,.est-form select:focus,.est-form textarea:focus,.chat-input input:focus{outline:2px solid var(--blue);outline-offset:1px}
.form-note{font-size:.85rem;color:var(--amber);min-height:1.2em;font-family:var(--body);text-transform:none;letter-spacing:0}

.est-result{margin-top:2.2rem;background:var(--ink);color:var(--paper);border-radius:var(--radius);padding:clamp(1.4rem,3vw,2.4rem);animation:pop .35s ease}
@keyframes pop{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.est-total{font-family:var(--disp);font-weight:800;font-size:clamp(1.9rem,4vw,2.8rem);color:var(--amber)}
.est-range{font-family:var(--mono);font-size:.75rem;letter-spacing:.1em;color:#9AA3AD;text-transform:uppercase;margin-bottom:1.4rem}
.est-table{width:100%;border-collapse:collapse;font-size:.93rem}
.est-table td{padding:.55rem 0;border-bottom:1px solid var(--line-dark)}
.est-table td:last-child{text-align:right;font-family:var(--mono);font-size:.85rem}
.est-note{font-size:.82rem;color:#9AA3AD;margin-top:1.1rem}

/* ============ SLIDER ============ */
.slider{margin-top:2.2rem;overflow:hidden}
.slides{display:flex;transition:transform .5s cubic-bezier(.4,0,.2,1)}
.slide{min-width:100%;background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(1.5rem,4vw,2.6rem)}
.slide p{font-size:clamp(1.05rem,2vw,1.3rem);font-family:var(--disp);font-weight:500;line-height:1.5}
.slide footer{margin-top:1.2rem;font-family:var(--mono);font-size:.75rem;letter-spacing:.1em;color:var(--blue);text-transform:uppercase}
.slider-nav{display:flex;align-items:center;justify-content:center;gap:1.2rem;margin-top:1.4rem}
.slider-nav button{background:none;border:1px solid var(--line);border-radius:999px;width:40px;height:40px;cursor:pointer;font-size:1rem;color:var(--ink)}
.slider-nav button:hover{background:var(--ink);color:#fff}
.dots{display:flex;gap:.5rem}
.dot{width:8px;height:8px;border-radius:50%;background:var(--line);border:0;cursor:pointer;padding:0}
.dot.active{background:var(--blue)}

/* ============ FAQ ============ */
.faq-list details{border:1px solid var(--line);background:var(--white);border-radius:var(--radius);margin-bottom:.7rem;padding:1rem 1.2rem}
.faq-list summary{font-family:var(--disp);font-weight:600;cursor:pointer;list-style:none;position:relative;padding-right:2rem}
.faq-list summary::after{content:"+";position:absolute;right:0;top:0;font-size:1.3rem;color:var(--blue);transition:transform .2s}
.faq-list details[open] summary::after{transform:rotate(45deg)}
.faq-list p{margin-top:.7rem;color:var(--ink-soft);font-size:.95rem}

/* ============ CONTACT / FOOTER ============ */
.contact-list{list-style:none;margin-top:1.5rem;display:grid;gap:1.1rem;font-size:.95rem;color:#B7BEC7}
.contact-list strong{color:var(--paper);font-family:var(--disp)}
.contact-list a{color:var(--amber);text-decoration:none}

.footer{background:#0E1216;color:#9AA3AD;padding:3.5rem 0 1.5rem;font-size:.9rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:2rem;padding-bottom:2.5rem}
.footer h5{color:var(--paper);margin-bottom:.8rem;font-size:.95rem}
.footer a,.link-btn{display:block;color:#9AA3AD;text-decoration:none;margin:.4rem 0;background:none;border:0;cursor:pointer;font:inherit;padding:0;text-align:left}
.footer a:hover,.link-btn:hover{color:var(--amber)}
.footer-base{border-top:1px solid var(--line-dark);padding:1.4rem clamp(1.1rem,4vw,2.5rem) 0;text-align:center}

/* ============ CHATBOT ============ */
.chat-fab{position:fixed;right:1.3rem;bottom:1.3rem;z-index:150;width:58px;height:58px;border-radius:50%;background:var(--blue);color:#fff;border:0;cursor:pointer;box-shadow:0 10px 30px rgba(14,77,164,.4);display:grid;place-items:center;transition:transform .2s}
.chat-fab:hover{transform:scale(1.07)}
.chat-panel[hidden]{display:none}
.chat-panel{position:fixed;right:1.3rem;bottom:5.8rem;z-index:150;width:min(380px,calc(100vw - 2rem));height:min(560px,calc(100vh - 8rem));background:var(--white);border:1px solid var(--line);border-radius:12px;box-shadow:0 24px 60px rgba(20,24,29,.25);display:flex;flex-direction:column;overflow:hidden;animation:pop .25s ease}
.chat-head{background:var(--ink);color:var(--paper);padding:.9rem 1.1rem;display:flex;justify-content:space-between;align-items:center}
.chat-head strong{font-family:var(--disp);display:block;font-size:.95rem}
.chat-head .mono-meta{color:var(--amber);font-size:.6rem}
.chat-head button{background:none;border:0;color:var(--paper);font-size:1rem;cursor:pointer}
.chat-body{flex:1;overflow-y:auto;padding:1rem;display:flex;flex-direction:column;gap:.7rem;background:var(--paper)}
.msg{max-width:85%;padding:.65rem .9rem;border-radius:10px;font-size:.92rem;line-height:1.5;white-space:pre-line}
.msg.bot{background:var(--white);border:1px solid var(--line);border-bottom-left-radius:2px;align-self:flex-start}
.msg.user{background:var(--blue);color:#fff;border-bottom-right-radius:2px;align-self:flex-end}
.msg.typing{color:var(--ink-soft);font-family:var(--mono);font-size:.75rem;letter-spacing:.15em}
.chat-quick{display:flex;gap:.4rem;flex-wrap:wrap;padding:.5rem .9rem;background:var(--paper);border-top:1px solid var(--line)}
.chat-quick:empty{display:none}
.chat-quick button{font-family:var(--mono);font-size:.68rem;letter-spacing:.06em;border:1px solid var(--blue);color:var(--blue);background:var(--white);border-radius:999px;padding:.35rem .7rem;cursor:pointer}
.chat-quick button:hover{background:var(--blue);color:#fff}
.chat-input{display:flex;border-top:1px solid var(--line)}
.chat-input input{flex:1;border:0;padding:.9rem 1rem;font-family:var(--body);font-size:.95rem;background:var(--white)}
.chat-input button{border:0;background:var(--blue);color:#fff;width:52px;cursor:pointer;font-size:1rem}

/* ============ REVEAL / MOTION ============ */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* ============ RESPONSIVE ============ */
@media (max-width:980px){
  .hero-inner{grid-template-columns:1fr}
  .hero-draw{max-width:380px;margin:0 auto}
  .split{grid-template-columns:1fr}
  .cards-4{grid-template-columns:1fr 1fr}
  .proj-grid{grid-template-columns:1fr 1fr}
  .cards-3{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  .nav-links{position:fixed;inset:57px 0 auto 0;background:var(--paper);flex-direction:column;align-items:flex-start;padding:1.3rem;gap:1rem;border-bottom:1px solid var(--line);transform:translateY(-130%);transition:transform .3s;box-shadow:var(--shadow)}
  .nav-links.open{transform:none}
  .nav-toggle{display:block}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .hero-stats{grid-template-columns:1fr 1fr;gap:1.4rem}
  .cards-4,.cards-3,.proj-grid,.why-grid,.field-row{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}