/* =========================================================
   JEYCB Construcciones — Design tokens
   Concept: "Structural Precision" — steel-inspired display type,
   safety-amber accent, and a recurring slat/line motif drawn
   from the company's own ironwork (herrería) photography.
   ========================================================= */
:root{
  --ink:#12141a;
  --ink-2:#1b1e26;
  --ink-3:#262a35;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);

  --paper:#F6F4EF;
  --paper-2:#FFFFFF;
  --stone:#EDEAE2;
  --charcoal:#1A1B1E;
  --slate:#5B5D63;
  --steel:#8B8D93;

  --amber:#D97B29;
  --amber-light:#EA9A4D;
  --amber-dim:rgba(217,123,41,.12);

  --radius:4px;
  --radius-lg:10px;
  --container:1200px;

  --ease-out:cubic-bezier(.16,1,.3,1);
  --ease-spring:cubic-bezier(.34,1.56,.64,1);
  --dur-s:180ms;
  --dur-m:320ms;
  --dur-l:600ms;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;overflow-x:hidden}
body{
  font-family:'Inter',-apple-system,sans-serif;
  color:var(--charcoal);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit}
ul{list-style:none}
button{font:inherit;cursor:pointer}
input,select,textarea{font:inherit}
h1,h2,h3,h4{font-family:'Big Shoulders Display',sans-serif;font-weight:700;letter-spacing:-.01em}

.skip-link{position:absolute;left:-999px;top:0;background:var(--amber);color:#fff;padding:12px 20px;z-index:1000;font-weight:600}
.skip-link:focus{left:12px;top:12px}

:focus-visible{outline:2.5px solid var(--amber);outline-offset:3px}

/* ---------- shared section chrome ---------- */
.sec-kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-family:'IBM Plex Mono',monospace;font-size:.72rem;font-weight:500;
  letter-spacing:.12em;text-transform:uppercase;color:var(--amber);margin-bottom:16px;
}
.sec-kicker::before{content:'';width:22px;height:2px;background:var(--amber)}
.sec-kicker--light{color:var(--amber-light)}
.sec-kicker--center{display:flex;justify-content:center;width:fit-content;margin:0 auto 16px}
.sec-kicker--center::before{display:none}
.sec-title{font-size:clamp(1.9rem,3.4vw,2.7rem);line-height:1.08;margin-bottom:18px;text-transform:uppercase}
.sec-title--light{color:#fff}
.sec-title--center{text-align:center}
.sec-desc{color:var(--slate);max-width:540px;font-size:1rem;line-height:1.7}
.sec-desc--center{margin:0 auto;text-align:center}

/* ---------- reveal-on-scroll ---------- */
@media(prefers-reduced-motion:no-preference){
  .reveal{opacity:0;transform:translateY(24px);transition:opacity var(--dur-l) var(--ease-out),transform var(--dur-l) var(--ease-out)}
  .reveal.is-visible{opacity:1;transform:translateY(0)}
  [style*="--i"].reveal{transition-delay:calc(var(--i,0) * 60ms)}
}

/* ============ NAV ============ */
.site-nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(246,244,239,.85);backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(0,0,0,.06);
  transition:background var(--dur-m);
}
.nav-inner{max-width:var(--container);margin:0 auto;padding:0 24px;height:76px;display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--charcoal)}
.brand-mark{width:34px;height:34px;color:var(--amber);flex-shrink:0}
.brand-mark svg{width:100%;height:100%}
.brand-word{font-family:'Big Shoulders Display',sans-serif;font-weight:700;font-size:1.15rem;letter-spacing:-.01em;text-transform:uppercase;line-height:1}
.brand-word em{display:block;font-style:normal;font-size:.55rem;letter-spacing:.16em;color:var(--slate);font-weight:500;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-links a{text-decoration:none;color:var(--slate);font-size:.88rem;font-weight:600;transition:color var(--dur-s)}
.nav-links a:hover{color:var(--charcoal)}
.nav-cta{background:var(--charcoal);color:#fff!important;padding:11px 22px!important;border-radius:var(--radius)}
.nav-cta:hover{background:var(--amber)!important}
.hamburger{display:none;flex-direction:column;gap:5px;background:none;border:none;padding:6px}
.hamburger span{display:block;width:22px;height:2px;background:var(--charcoal);transition:transform var(--dur-s),opacity var(--dur-s)}

/* ============ HERO ============ */
.hero{position:relative;min-height:100vh;display:flex;flex-direction:column;background:var(--ink);color:#fff;overflow:hidden}
.hero-media{position:absolute;inset:0;z-index:0}
.hero-media img{width:100%;height:100%;object-fit:cover;object-position:center 30%}
.hero-scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,20,26,.55) 0%,rgba(18,20,26,.78) 55%,rgba(18,20,26,.96) 100%)}
.hero-lines{position:absolute;inset:0;z-index:1;width:100%;height:100%;pointer-events:none}
.hero-lines line{stroke:rgba(255,255,255,.12);stroke-width:.15}
@media(prefers-reduced-motion:no-preference){
  .hero-lines .line-draw{stroke-dasharray:100;stroke-dashoffset:100;animation:drawLine 1.4s var(--ease-out) forwards;animation-delay:calc(var(--d) * 140ms + .2s)}
}
@keyframes drawLine{to{stroke-dashoffset:0}}

.hero-inner{position:relative;z-index:2;max-width:var(--container);width:100%;margin:0 auto;padding:150px 24px 90px;flex:1;display:flex;flex-direction:column;justify-content:center}
.eyebrow{display:inline-flex;align-items:center;gap:9px;width:fit-content;font-family:'IBM Plex Mono',monospace;font-size:.75rem;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.72);border:1px solid rgba(255,255,255,.22);padding:8px 16px;border-radius:2px;margin-bottom:30px}
.eyebrow-dot{width:6px;height:6px;background:var(--amber);border-radius:50%}
.hero h1{font-size:clamp(2.7rem,6.4vw,5.2rem);line-height:.98;text-transform:uppercase;max-width:760px;margin-bottom:26px}
.hero h1 em{font-style:normal;color:var(--amber-light)}
.hero-desc{font-size:1.1rem;color:rgba(255,255,255,.65);max-width:520px;line-height:1.75;margin-bottom:40px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:74px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:16px 30px;border-radius:var(--radius);font-weight:600;font-size:.92rem;text-decoration:none;border:1.5px solid transparent;transition:transform var(--dur-s) var(--ease-out),box-shadow var(--dur-s),background var(--dur-s),border-color var(--dur-s)}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--amber);color:#fff}
.btn-primary:hover{background:var(--amber-light);box-shadow:0 10px 28px rgba(217,123,41,.35);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
.btn-ghost:hover{border-color:rgba(255,255,255,.55);background:rgba(255,255,255,.06);transform:translateY(-2px)}
.btn-block{width:100%}

.hero-stats{display:grid;grid-template-columns:repeat(4,auto);gap:44px}
.hero-stats dt{font-family:'IBM Plex Mono',monospace;font-size:2.1rem;font-weight:500;color:var(--amber-light);line-height:1}
.hero-stats dd{font-size:.76rem;color:rgba(255,255,255,.5);margin-top:6px;letter-spacing:.02em}

.scroll-cue{position:relative;z-index:2;align-self:center;margin-bottom:28px;width:26px;height:42px;border:1.5px solid rgba(255,255,255,.35);border-radius:14px;display:flex;justify-content:center;padding-top:8px}
.scroll-cue span{width:3px;height:8px;background:var(--amber-light);border-radius:2px}
@media(prefers-reduced-motion:no-preference){.scroll-cue span{animation:cueDrop 1.8s ease-in-out infinite}}
@keyframes cueDrop{0%{opacity:0;transform:translateY(0)}30%{opacity:1}100%{opacity:0;transform:translateY(14px)}}

/* ============ ABOUT ============ */
.about{padding:130px 24px;background:var(--paper)}
.about-grid{max-width:var(--container);margin:0 auto;display:grid;grid-template-columns:.95fr 1.05fr;gap:80px;align-items:center}
.about-media{position:relative}
.about-media-main{width:100%;aspect-ratio:4/5;border-radius:var(--radius-lg);overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.14)}
.about-media-main img{width:100%;height:100%;object-fit:cover}
.about-media-float{position:absolute;bottom:-36px;right:-36px;width:56%;aspect-ratio:4/3;border-radius:var(--radius-lg);overflow:hidden;border:6px solid var(--paper);box-shadow:0 16px 40px rgba(0,0,0,.16)}
.about-media-float img{width:100%;height:100%;object-fit:cover}
.about-frame{position:absolute;top:-18px;left:-18px;width:64px;height:64px;border-left:3px solid var(--amber);border-top:3px solid var(--amber)}
.about-copy p{color:var(--slate);font-size:1rem;line-height:1.8;margin-bottom:16px}
.pillars{display:grid;grid-template-columns:1fr 1fr;gap:2px;margin-top:30px;background:rgba(0,0,0,.08);border-radius:var(--radius-lg);overflow:hidden}
.pillar{background:var(--paper-2);padding:22px;transition:background var(--dur-s)}
.pillar:hover{background:var(--amber-dim)}
.pillar-n{font-family:'IBM Plex Mono',monospace;font-size:.72rem;color:var(--amber);display:block;margin-bottom:8px}
.pillar h3{font-size:.95rem;text-transform:uppercase;margin-bottom:4px}
.pillar p{font-size:.8rem;color:var(--steel);line-height:1.5}

/* ============ SERVICES ============ */
.services{position:relative;padding:130px 24px;background:var(--ink);overflow:hidden}
.services-bg{position:absolute;inset:0;width:100%;height:100%;opacity:.5}
.services-bg line{stroke:var(--line);stroke-width:.1}
.services-inner{position:relative;max-width:var(--container);margin:0 auto}
.services-header{margin-bottom:60px;max-width:640px}
.services-header .sec-desc{color:rgba(255,255,255,.55)}
.services-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line)}
.svc{background:var(--ink);padding:34px 28px;transition:background var(--dur-m)}
.svc:hover{background:var(--ink-2)}
.svc-icon{width:38px;height:38px;color:var(--amber-light);margin-bottom:22px}
.svc h3{color:#fff;font-size:1.15rem;text-transform:uppercase;margin-bottom:10px;letter-spacing:.01em}
.svc>p{color:rgba(255,255,255,.5);font-size:.88rem;line-height:1.6;margin-bottom:16px}
.svc ul li{font-size:.82rem;color:rgba(255,255,255,.62);padding:5px 0 5px 18px;position:relative;font-family:'IBM Plex Mono',monospace}
.svc ul li::before{content:'';position:absolute;left:0;top:12px;width:9px;height:1.5px;background:var(--amber)}

/* ============ PROJECTS ============ */
.projects{padding:130px 24px;background:var(--paper)}
.projects-header{max-width:var(--container);margin:0 auto 56px}
.gallery{max-width:var(--container);margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:230px;gap:12px}
.gal{position:relative;border-radius:var(--radius);overflow:hidden;cursor:default}
.gal img{width:100%;height:100%;object-fit:cover;transition:transform .7s var(--ease-out)}
.gal:hover img{transform:scale(1.06)}
.gal--wide{grid-column:span 2}
.gal--tall{grid-row:span 2}
.gal figcaption{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:22px;background:linear-gradient(0deg,rgba(18,20,26,.88) 0%,transparent 60%);color:#fff;font-weight:600;font-size:.95rem;opacity:0;transition:opacity var(--dur-m)}
.gal:hover figcaption{opacity:1}
.gal figcaption span{display:block;font-family:'IBM Plex Mono',monospace;font-weight:500;font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;color:var(--amber-light);margin-bottom:4px}

/* ============ CLIENTS ============ */
.clients{padding:110px 24px;background:var(--paper-2)}
.clients-header{max-width:640px;margin:0 auto 50px}
.clients-grid{max-width:var(--container);margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(0,0,0,.08);border-radius:var(--radius-lg);overflow:hidden}
.clients-grid li{background:var(--paper-2);padding:26px 20px;text-align:center;transition:background var(--dur-s)}
.clients-grid li:hover{background:var(--amber-dim)}
.clients-grid h3{font-family:'Inter',sans-serif;font-weight:600;font-size:.88rem;line-height:1.35;text-transform:none;margin-bottom:6px}
.clients-grid span{font-family:'IBM Plex Mono',monospace;font-size:.66rem;color:var(--steel);text-transform:uppercase;letter-spacing:.08em}

/* ============ CTA BANNER ============ */
.cta-banner{position:relative;padding:110px 24px;background:var(--charcoal);overflow:hidden}
.cta-bg{position:absolute;inset:0;width:100%;height:100%;opacity:.4}
.cta-bg line{stroke:var(--line);stroke-width:.15}
.cta-inner{position:relative;max-width:660px;margin:0 auto;text-align:center}
.cta-inner h2{font-size:clamp(2rem,4vw,2.9rem);color:#fff;text-transform:uppercase;line-height:1.08;margin-bottom:18px}
.cta-inner h2 em{font-style:normal;color:var(--amber-light)}
.cta-inner p{color:rgba(255,255,255,.6);font-size:1.05rem;margin-bottom:34px;line-height:1.7}

/* ============ CONTACT ============ */
.contact{padding:130px 24px;background:var(--paper)}
.contact-grid{max-width:var(--container);margin:0 auto;display:grid;grid-template-columns:1fr 1.25fr;gap:60px;align-items:start}
.contact-list{margin-top:32px}
.contact-list li{display:flex;gap:16px;align-items:flex-start;margin-bottom:24px}
.contact-list svg{width:22px;height:22px;flex-shrink:0;color:var(--amber);margin-top:2px}
.contact-list strong{display:block;font-size:.85rem;font-weight:700;margin-bottom:2px}
.contact-list a,.contact-list span{display:block;color:var(--slate);font-size:.92rem;text-decoration:none;transition:color var(--dur-s)}
.contact-list a:hover{color:var(--amber)}

.quote-form{background:var(--paper-2);padding:44px;border-radius:var(--radius-lg);border:1px solid rgba(0,0,0,.07);box-shadow:0 20px 50px rgba(0,0,0,.06)}
.quote-form h3{font-size:1.5rem;text-transform:uppercase;margin-bottom:4px}
.form-sub{color:var(--steel);font-size:.85rem;margin-bottom:26px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{margin-bottom:16px}
.field label{display:block;font-size:.78rem;font-weight:700;margin-bottom:6px;color:var(--charcoal)}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border:1.5px solid rgba(0,0,0,.12);border-radius:var(--radius);
  background:var(--paper);color:var(--charcoal);font-size:.92rem;transition:border-color var(--dur-s),background var(--dur-s);
}
.field input::placeholder,.field textarea::placeholder{color:var(--steel)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--amber);background:var(--paper-2)}
.field select{cursor:pointer}
.field textarea{min-height:96px;resize:vertical}

.field-error{display:block;min-height:0;font-size:.78rem;color:#B4482A;font-weight:600;margin-top:6px}
.field.has-error input,.field.has-error select{border-color:#D9483C;background:#FBEAE5}

.field-honeypot{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

.form-error{background:#FBEAE5;color:#B4482A;font-size:.85rem;padding:12px 14px;border-radius:var(--radius);margin-bottom:16px;font-weight:600}

.quote-form .btn{margin-top:8px;position:relative}
.btn-spinner{display:none;width:16px;height:16px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%}
.quote-form.is-loading .btn-label{opacity:0}
.quote-form.is-loading .btn-spinner{display:block;position:absolute;left:50%;top:50%;margin:-8px 0 0 -8px}
@media(prefers-reduced-motion:no-preference){.btn-spinner{animation:spin .7s linear infinite}}
@keyframes spin{to{transform:rotate(360deg)}}

.form-success{text-align:center;padding:40px 10px}
.success-check{display:flex;align-items:center;justify-content:center;width:60px;height:60px;background:var(--amber-dim);color:var(--amber);border-radius:50%;margin:0 auto 18px}
.success-check svg{width:26px;height:26px}
.form-success h4{font-size:1.35rem;text-transform:uppercase;margin-bottom:8px}
.form-success p{color:var(--slate);font-size:.92rem;max-width:360px;margin:0 auto;line-height:1.6}

/* ============ FOOTER ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.5);padding:70px 24px 30px}
.footer-inner{max-width:var(--container);margin:0 auto;display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:44px}
.footer-brand .brand-mark{color:var(--amber)}
.footer-brand .brand-word{color:#fff}
.footer-brand p{font-size:.85rem;max-width:300px;margin-top:16px;line-height:1.7}
.footer-col h5{color:rgba(255,255,255,.75);font-family:'IBM Plex Mono',monospace;font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:18px}
.footer-col a,.footer-col span{display:block;color:rgba(255,255,255,.45);text-decoration:none;font-size:.86rem;margin-bottom:11px;transition:color var(--dur-s)}
.footer-col a:hover{color:var(--amber-light)}
.footer-bottom{max-width:var(--container);margin:48px auto 0;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);font-size:.75rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}

/* ============ WHATSAPP FLOAT ============ */
.whatsapp-btn{
  position:fixed;right:22px;bottom:22px;z-index:90;
  width:56px;height:56px;border-radius:50%;background:#25D366;color:#fff;
  display:flex;align-items:center;justify-content:center;box-shadow:0 10px 26px rgba(37,211,102,.4);
  transition:transform var(--dur-s) var(--ease-spring);
}
.whatsapp-btn svg{width:28px;height:28px}
.whatsapp-btn:hover{transform:scale(1.08)}
@media(prefers-reduced-motion:no-preference){
  .whatsapp-btn::after{
    content:'';position:absolute;inset:0;border-radius:50%;background:#25D366;
    animation:pulse 2.4s ease-out infinite;z-index:-1;
  }
}
@keyframes pulse{0%{opacity:.5;transform:scale(1)}100%{opacity:0;transform:scale(1.6)}}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media(max-width:1024px){
  .about-grid{grid-template-columns:1fr;gap:60px}
  .about-media{max-width:480px;margin:0 auto}
  .services-grid{grid-template-columns:repeat(2,1fr)}
  .clients-grid{grid-template-columns:repeat(3,1fr)}
  .contact-grid{grid-template-columns:1fr;gap:50px}
  .gallery{grid-template-columns:repeat(3,1fr)}
  .gal--wide{grid-column:span 3}
}

@media(max-width:768px){
  .nav-links{
    position:absolute;top:76px;left:0;right:0;background:var(--paper);
    flex-direction:column;align-items:stretch;gap:0;padding:8px 24px 20px;
    border-bottom:1px solid rgba(0,0,0,.07);
    display:none;
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:14px 4px;border-bottom:1px solid rgba(0,0,0,.05)}
  .nav-cta{margin-top:10px;text-align:center}
  .hamburger{display:flex}
  .hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .hamburger.is-open span:nth-child(2){opacity:0}
  .hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

  .hero-inner{padding:120px 20px 60px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:28px}
  .about,.services,.projects,.clients,.contact,.cta-banner{padding-top:88px;padding-bottom:88px}
  .about-media-float{width:62%}
  .services-grid{grid-template-columns:1fr}
  .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:190px}
  .gal--wide{grid-column:span 2}
  .gal--tall{grid-row:span 1}
  .clients-grid{grid-template-columns:repeat(2,1fr)}
  .form-row{grid-template-columns:1fr}
  .quote-form{padding:28px 20px}
  .footer-inner{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;text-align:center}
  .whatsapp-btn{right:16px;bottom:16px;width:52px;height:52px}
}

@media(max-width:420px){
  .hero-stats{grid-template-columns:repeat(2,1fr)}
  .hero-actions .btn{flex:1 1 auto;justify-content:center}
}