/* IRONCLAD CONSTRUCTION - concept demo by FineWright */
:root{
  --bg:#0d0f12; --bg2:#13161b; --panel:#171b21; --line:rgba(255,255,255,.09);
  --line2:rgba(255,255,255,.16); --text:#eef1f5; --muted:#9aa3b0; --faint:#646d7a;
  --amber:#ff8a00; --amber2:#ffb347; --steel:#4d9fff; --ok:#39d98a;
  --d:Archivo,system-ui,sans-serif; --c:"Archivo Black",system-ui,sans-serif;
  --ease:cubic-bezier(.2,.7,.2,1);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--d);background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
.wrap{max-width:1200px;margin:0 auto;padding:0 28px}
section{position:relative}
::selection{background:var(--amber);color:#0d0f12}

/* texture */
body::before{content:"";position:fixed;inset:0;z-index:-2;background:
  radial-gradient(900px 500px at 80% -10%,rgba(255,138,0,.10),transparent 60%),
  radial-gradient(700px 500px at 0% 20%,rgba(77,159,255,.07),transparent 55%),var(--bg)}
body::after{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.5;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:72px 72px;mask-image:radial-gradient(130% 100% at 50% 0%,#000 30%,transparent 80%)}

/* header */
.hdr{position:fixed;top:0;left:0;right:0;z-index:50;backdrop-filter:blur(14px);
  background:rgba(13,15,18,.6);border-bottom:1px solid var(--line);transition:transform .4s var(--ease)}
.hdr .wrap{display:flex;align-items:center;justify-content:space-between;height:74px}
.logo{display:flex;align-items:center;gap:11px;font-family:var(--c);font-size:1.15rem;letter-spacing:.02em;text-transform:uppercase}
.logo .mark{width:34px;height:34px;display:grid;place-items:center;background:linear-gradient(135deg,var(--amber),var(--amber2));clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);color:#0d0f12}
.nav{display:flex;gap:30px;align-items:center}
.nav a{font-size:.82rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);transition:color .25s}
.nav a:hover,.nav a.on{color:var(--text)}
.btn{display:inline-flex;align-items:center;gap:9px;font-family:var(--d);font-weight:700;font-size:.82rem;letter-spacing:.06em;text-transform:uppercase;
  padding:14px 24px;border-radius:2px;cursor:pointer;border:none;transition:transform .3s var(--ease),box-shadow .3s,background .3s}
.btn-a{background:linear-gradient(135deg,var(--amber),var(--amber2));color:#0d0f12;box-shadow:0 8px 30px rgba(255,138,0,.3)}
.btn-a:hover{transform:translateY(-3px);box-shadow:0 14px 40px rgba(255,138,0,.45)}
.btn-g{background:transparent;color:var(--text);border:1px solid var(--line2)}
.btn-g:hover{border-color:var(--amber);color:var(--amber)}
.menu-btn{display:none;background:none;border:none;color:var(--text);font-size:1.4rem;cursor:pointer}

/* hero */
.hero{min-height:100vh;display:flex;align-items:center;padding:120px 0 70px;overflow:hidden}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center}
.tagpill{display:inline-flex;align-items:center;gap:9px;font-size:.74rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--amber);
  border:1px solid rgba(255,138,0,.35);background:rgba(255,138,0,.07);padding:8px 14px;border-radius:2px;margin-bottom:26px}
.tagpill .dot{width:7px;height:7px;border-radius:50%;background:var(--amber);box-shadow:0 0 12px var(--amber);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
.hero h1{font-family:var(--c);font-size:clamp(2.6rem,6.5vw,5rem);line-height:.95;text-transform:uppercase;letter-spacing:-.01em;margin-bottom:24px}
.hero h1 .o{color:var(--amber);position:relative}
.hero p{font-size:1.12rem;color:var(--muted);max-width:46ch;margin-bottom:34px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:34px;margin-top:46px;padding-top:30px;border-top:1px solid var(--line)}
.hero-stats .n{font-family:var(--c);font-size:2rem;color:var(--text)}
.hero-stats .n .plus{color:var(--amber)}
.hero-stats .l{font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin-top:4px}

/* hero visual: animated blueprint crane */
.hero-art{position:relative;aspect-ratio:1/1.08;border:1px solid var(--line);background:
  linear-gradient(180deg,var(--panel),var(--bg2));border-radius:3px;overflow:hidden;box-shadow:0 40px 90px rgba(0,0,0,.5)}
.hero-art .grid{position:absolute;inset:0;opacity:.5;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:34px 34px}
.hero-art svg{position:absolute;inset:0;width:100%;height:100%}
.draw{stroke-dasharray:1400;stroke-dashoffset:1400;animation:draw 3s var(--ease) forwards}
.draw.d2{animation-delay:.5s}.draw.d3{animation-delay:1s}
@keyframes draw{to{stroke-dashoffset:0}}
.hero-art .scan{position:absolute;left:0;right:0;height:120px;background:linear-gradient(180deg,transparent,rgba(255,138,0,.14),transparent);animation:scan 4s var(--ease) infinite}
@keyframes scan{0%{top:-120px}100%{top:100%}}
.hero-art .badge{position:absolute;bottom:18px;left:18px;font-family:var(--c);font-size:.7rem;letter-spacing:.1em;text-transform:uppercase;color:var(--steel);background:rgba(13,15,18,.7);padding:7px 12px;border:1px solid var(--line)}

/* marquee */
.mq{border-block:1px solid var(--line);background:var(--bg2);overflow:hidden;padding:18px 0;display:flex;white-space:nowrap;transform:rotate(-1deg) scale(1.02);margin:0 -10px}
.mq-t{display:inline-flex;gap:40px;animation:mq 28s linear infinite;padding-right:40px}
.mq span{font-family:var(--c);font-size:1.4rem;text-transform:uppercase;color:var(--faint);display:inline-flex;align-items:center;gap:40px}
.mq span::after{content:"";width:10px;height:10px;background:var(--amber);clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%)}
@keyframes mq{to{transform:translateX(-50%)}}

/* sections */
.sec{padding:100px 0}
.eyebrow{font-size:.74rem;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--amber);display:flex;align-items:center;gap:12px;margin-bottom:18px}
.eyebrow::before{content:"";width:30px;height:2px;background:var(--amber)}
.h2{font-family:var(--c);font-size:clamp(2rem,4.5vw,3.2rem);text-transform:uppercase;line-height:1;letter-spacing:-.01em;margin-bottom:18px}
.sub{color:var(--muted);max-width:54ch;font-size:1.05rem}
.head{margin-bottom:54px;max-width:760px}

/* service cards */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.svc{position:relative;padding:34px 30px;background:var(--panel);border:1px solid var(--line);border-radius:3px;overflow:hidden;transition:transform .5s var(--ease),border-color .5s}
.svc::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--amber),var(--amber2));transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease)}
.svc:hover{transform:translateY(-8px);border-color:var(--line2)}
.svc:hover::before{transform:scaleX(1)}
.svc .ic{width:54px;height:54px;display:grid;place-items:center;border:1px solid var(--line2);border-radius:3px;color:var(--amber);margin-bottom:22px}
.svc h3{font-family:var(--c);font-size:1.3rem;text-transform:uppercase;margin-bottom:10px}
.svc p{color:var(--muted);font-size:.95rem}
.svc .no{position:absolute;top:24px;right:26px;font-family:var(--c);font-size:2.4rem;color:var(--line2);line-height:1}

/* stats band */
.band{background:linear-gradient(135deg,var(--amber),var(--amber2));color:#0d0f12;padding:64px 0;clip-path:polygon(0 8%,100% 0,100% 92%,0 100%)}
.band .grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.band .n{font-family:var(--c);font-size:clamp(2.4rem,5vw,3.6rem);line-height:1}
.band .l{font-weight:700;letter-spacing:.08em;text-transform:uppercase;font-size:.82rem;margin-top:6px}

/* process */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:3px;overflow:hidden}
.step{padding:34px 26px;border-right:1px solid var(--line);background:var(--panel);transition:background .4s}
.step:last-child{border-right:none}
.step:hover{background:var(--bg2)}
.step .k{font-family:var(--c);font-size:1.1rem;color:var(--amber);margin-bottom:14px}
.step h4{font-family:var(--c);font-size:1.1rem;text-transform:uppercase;margin-bottom:8px}
.step p{color:var(--muted);font-size:.9rem}

/* estimator */
.estbox{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line2);border-radius:4px;overflow:hidden;background:var(--panel)}
.estL{padding:44px;border-right:1px solid var(--line)}
.estR{padding:44px;background:linear-gradient(180deg,var(--bg2),var(--panel));display:flex;flex-direction:column;justify-content:center}
.fgroup{margin-bottom:26px}
.fgroup label{display:block;font-size:.74rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.opts{display:flex;gap:10px;flex-wrap:wrap}
.opt{padding:12px 18px;border:1px solid var(--line2);border-radius:2px;font-size:.86rem;font-weight:600;cursor:pointer;color:var(--muted);transition:all .25s;background:var(--bg)}
.opt:hover{border-color:var(--amber)}
.opt.sel{background:var(--amber);color:#0d0f12;border-color:var(--amber)}
.slider{width:100%;accent-color:var(--amber);margin-top:6px}
.sliderval{font-family:var(--c);color:var(--amber);font-size:1.1rem}
.estR .lab{font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--faint)}
.estR .price{font-family:var(--c);font-size:clamp(2.6rem,6vw,4rem);color:var(--text);line-height:1;margin:10px 0}
.estR .price span{color:var(--amber)}
.estR .fine{color:var(--muted);font-size:.86rem;margin-bottom:24px}

/* cta */
.ctaband{text-align:center;padding:110px 0}
.ctaband h2{font-family:var(--c);font-size:clamp(2.2rem,5vw,3.6rem);text-transform:uppercase;line-height:1;margin-bottom:18px}
.ctaband p{color:var(--muted);max-width:48ch;margin:0 auto 30px;font-size:1.08rem}

/* footer */
.ft{border-top:1px solid var(--line);padding:60px 0 34px;background:var(--bg2)}
.ft-top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;margin-bottom:40px}
.ft p{color:var(--muted);max-width:40ch;margin-top:14px;font-size:.95rem}
.ft-cols{display:flex;gap:60px}
.ft-col h5{font-size:.74rem;letter-spacing:.12em;text-transform:uppercase;color:var(--faint);margin-bottom:14px}
.ft-col a{display:block;color:var(--muted);font-size:.92rem;margin-bottom:9px;transition:color .25s}
.ft-col a:hover{color:var(--amber)}
.ft-bot{border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;color:var(--faint);font-size:.82rem}

/* concept ribbon */
.concept{position:fixed;right:-1px;bottom:22px;z-index:60;display:inline-flex;align-items:center;gap:9px;
  background:rgba(13,15,18,.85);backdrop-filter:blur(10px);border:1px solid var(--line2);border-right:none;
  padding:11px 16px;border-radius:8px 0 0 8px;font-size:.78rem;color:var(--muted);transition:transform .3s var(--ease)}
.concept:hover{transform:translateX(-4px);color:var(--text)}
.concept b{color:var(--amber)}

/* reveal */
.rv{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.rv.in{opacity:1;transform:none}

/* page hero (inner) */
.phero{padding:150px 0 60px;border-bottom:1px solid var(--line)}
.phero .crumb{font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--faint);margin-bottom:18px}
.phero .crumb a{color:var(--amber)}
.phero h1{font-family:var(--c);font-size:clamp(2.4rem,6vw,4.4rem);text-transform:uppercase;line-height:.96}

/* contact form */
.cgrid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.field{margin-bottom:20px}
.field label{display:block;font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:9px}
.input{width:100%;background:var(--bg);border:1px solid var(--line2);border-radius:2px;padding:14px 16px;color:var(--text);font-family:var(--d);font-size:.95rem;transition:border-color .25s}
.input:focus{outline:none;border-color:var(--amber)}
textarea.input{resize:vertical;min-height:120px}

@media(max-width:980px){
  .hero .wrap{grid-template-columns:1fr;gap:36px}.hero-art{max-width:420px}
  .grid3{grid-template-columns:1fr}.steps{grid-template-columns:1fr 1fr}
  .band .grid4{grid-template-columns:1fr 1fr}.estbox{grid-template-columns:1fr}.estL{border-right:none;border-bottom:1px solid var(--line)}
  .cgrid{grid-template-columns:1fr}
  .nav{display:none}.menu-btn{display:block}
  .nav.open{display:flex;position:absolute;top:74px;left:0;right:0;flex-direction:column;background:var(--bg2);padding:24px 28px;border-bottom:1px solid var(--line);gap:18px}
}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.rv{opacity:1;transform:none}}

/* ---- mobile refinement ---- */
@media(max-width:600px){
  .wrap{padding:0 18px}
  input,select,textarea,.input{font-size:16px!important}
  .hdr .wrap{height:64px}
  .hero{padding:96px 0 50px;min-height:auto}
  .hero h1{font-size:clamp(2.2rem,12vw,3rem)}
  .hero p{font-size:1rem}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn{width:100%;justify-content:center}
  .hero-stats{gap:18px;flex-wrap:wrap}
  .hero-stats .n{font-size:1.5rem}
  .sec{padding:64px 0}
  .h2{font-size:clamp(1.8rem,8vw,2.4rem)}
  .band{padding:48px 0;clip-path:polygon(0 3%,100% 0,100% 97%,0 100%)}
  .band .grid4{grid-template-columns:1fr 1fr;gap:18px}
  .step{padding:24px 20px}
  .estL,.estR{padding:28px 22px}
  .opt{flex:1;text-align:center;min-height:46px;display:flex;align-items:center;justify-content:center}
  .btn{min-height:50px}
  .mq span{font-size:1.1rem}
  .ctaband{padding:72px 0}
  .concept{bottom:16px;padding:9px 13px;font-size:.72rem}
}
@media(max-width:380px){ .hero h1{font-size:2rem} .hero-stats .n{font-size:1.3rem} }