/* ==========================================================
   A3 Engineering — theme styles
   Breakpoints: 480 / 768 / 1024 / 1280
   ========================================================== */
:root{
  --a3-accent:#f0611a;
  --a3-accent-dark:#c74a0d;
  --a3-ink:#0e1216;
  --a3-ink-2:#1a2027;
  --a3-ink-3:#2a333d;
  --a3-body:#3c464f;
  --a3-muted:#6b7681;
  --a3-line:#e2e6ea;
  --a3-bg:#ffffff;
  --a3-bg-alt:#f5f7f8;
  --a3-wa:#25d366;
  --a3-radius:6px;
  --a3-shadow:0 2px 10px rgba(14,18,22,.07);
  --a3-shadow-lg:0 14px 40px rgba(14,18,22,.14);
  --a3-container:1200px;
  --a3-font:"Helvetica Neue",Helvetica,Arial,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:var(--a3-font);font-size:16px;line-height:1.65;color:var(--a3-body);background:var(--a3-bg);overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:var(--a3-accent);text-decoration:none}
a:hover{color:var(--a3-accent-dark)}
h1,h2,h3,h4,h5{margin:0 0 .6em;color:var(--a3-ink);line-height:1.2;font-weight:800;letter-spacing:-.01em}
h1{font-size:2.4rem}h2{font-size:1.9rem}h3{font-size:1.25rem}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.1em;padding-left:1.2em}
.container{width:100%;max-width:var(--a3-container);margin:0 auto;padding:0 20px}
.section{padding:72px 0}
.section--alt{background:var(--a3-bg-alt)}
.section--dark{background:var(--a3-ink);color:#c9d1d9}
.section--dark h2,.section--dark h3{color:#fff}
.section__title{font-size:2.1rem;margin-bottom:36px;max-width:820px}
.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:.75rem;font-weight:700;color:var(--a3-accent);margin:0 0 8px}
.text-center{text-align:center}
.display-1{font-size:5rem;color:var(--a3-accent);margin-bottom:0}
.screen-reader-text{position:absolute!important;width:1px;height:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);white-space:nowrap}
.skip-link{position:absolute;left:-9999px;z-index:999}
.skip-link:focus{left:12px;top:12px;background:#fff;padding:10px 16px;border-radius:var(--a3-radius)}

/* Buttons */
.btn{white-space:nowrap;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 22px;border-radius:var(--a3-radius);font-weight:700;font-size:.95rem;line-height:1;border:2px solid transparent;cursor:pointer;transition:.18s ease;text-align:center}
.btn-primary{background:var(--a3-accent);color:#fff}
.btn-primary:hover{background:var(--a3-accent-dark);color:#fff}
.btn-whatsapp{background:var(--a3-wa);color:#08341a}
.btn-whatsapp:hover{background:#1fb857;color:#08341a}
.btn-outline{border-color:var(--a3-line);color:var(--a3-ink);background:#fff}
.btn-outline:hover{border-color:var(--a3-accent);color:var(--a3-accent)}
.btn-sm{padding:10px 15px;font-size:.85rem}
.btn-lg{padding:16px 30px;font-size:1rem}
.btn-block{display:flex;width:100%;margin-bottom:10px}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;justify-content:center}
.link-more{font-weight:700;display:inline-flex;align-items:center;gap:6px}
.link-more::after{content:"→"}

/* Topbar */
.topbar{background:var(--a3-ink);color:#95a1ac;font-size:.82rem}
.topbar__inner{display:flex;justify-content:space-between;align-items:center;min-height:38px;gap:16px;flex-wrap:wrap}
.topbar__item{color:#95a1ac;margin-left:18px}
.topbar__left .topbar__item{margin:0}
.topbar__item:hover{color:#fff}

/* Header */
.site-header{background:var(--a3-ink-2);position:sticky;top:0;z-index:60;box-shadow:0 1px 0 rgba(255,255,255,.06)}
.site-header__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:84px}
.site-branding{flex:0 0 auto;max-width:52%;display:flex;align-items:center}
.site-branding img,.custom-logo{max-height:var(--a3-logo-h,56px);width:auto;height:auto;display:block}
.site-branding--pill,.site-branding--panel{background:#fff;padding:8px 14px;border-radius:100px}
.site-branding--panel{border-radius:var(--a3-radius);padding:10px 16px}
.site-branding--pill .a3-wordmark__text strong,.site-branding--panel .a3-wordmark__text strong{color:var(--a3-ink)}
.site-branding--pill .a3-wordmark__text em,.site-branding--panel .a3-wordmark__text em{color:var(--a3-ink-3)}
.site-branding--invert img,.site-branding--invert .custom-logo{filter:invert(1) brightness(2)}
.site-branding--invert.site-branding--pill,.site-branding--invert.site-branding--panel{background:transparent;padding:0}
.site-branding--invert.site-branding--pill .a3-wordmark__text strong,.site-branding--invert.site-branding--panel .a3-wordmark__text strong{color:#fff}
.a3-wordmark{display:flex;align-items:center;gap:12px}
.a3-wordmark__mark{background:var(--a3-accent);color:#fff;font-weight:900;font-size:calc(1.15rem * var(--a3-title-scale,1.25));padding:9px 12px;border-radius:var(--a3-radius);letter-spacing:-.02em;line-height:1}
.a3-wordmark__text{display:flex;flex-direction:column;line-height:1.15}
.a3-wordmark__text strong{color:#fff;font-size:calc(.82rem * var(--a3-title-scale,1.25));text-transform:uppercase;letter-spacing:.02em;max-width:none}
.a3-wordmark__text em{color:#8f9aa5;font-style:normal;font-size:calc(.62rem * var(--a3-title-scale,1.25))}

/* Nav */
.nav-toggle{display:none;background:transparent;border:0;padding:10px;cursor:pointer}
.nav-toggle__bars{display:block;width:26px}
.nav-toggle__bars span{display:block;height:2px;background:#fff;margin:5px 0;transition:.2s}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.main-nav{display:flex;align-items:center;gap:22px}
.a3-menu{display:flex;list-style:none;margin:0;padding:0;gap:2px;align-items:center}
.a3-menu li{position:relative}
.a3-menu > li > a{display:block;padding:26px 11px;color:#e6eaee;font-weight:600;font-size:.9rem;white-space:nowrap}
.a3-menu > li > a:hover,.a3-menu > li.current-menu-item > a,.a3-menu > li.current-menu-parent > a,.a3-menu > li.current-page-ancestor > a{color:var(--a3-accent)}
.a3-menu .submenu-toggle{background:transparent;border:0;padding:0 8px 0 0;cursor:pointer;position:absolute;right:0;top:26px}
.a3-menu > li > .submenu-toggle{display:none}
.a3-menu .chev{display:inline-block;width:7px;height:7px;border-right:2px solid #e6eaee;border-bottom:2px solid #e6eaee;transform:rotate(45deg);margin-bottom:3px}
.a3-menu .menu-item-has-children > a{padding-right:24px}
.a3-menu .menu-item-has-children > a::after{content:"";display:inline-block;width:6px;height:6px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);margin-left:8px;vertical-align:2px}
.a3-menu .sub-menu{position:absolute;top:100%;left:0;min-width:280px;background:#fff;list-style:none;margin:0;padding:10px 0;box-shadow:var(--a3-shadow-lg);border-top:3px solid var(--a3-accent);border-radius:0 0 var(--a3-radius) var(--a3-radius);opacity:0;visibility:hidden;transform:translateY(8px);transition:.16s ease;z-index:70}
.a3-menu li:hover > .sub-menu,.a3-menu li:focus-within > .sub-menu,.a3-menu li.is-open > .sub-menu{opacity:1;visibility:visible;transform:none}
.a3-menu .sub-menu a{display:block;padding:11px 20px;color:var(--a3-ink-2);font-size:.9rem;font-weight:600}
.a3-menu .sub-menu a:hover{background:var(--a3-bg-alt);color:var(--a3-accent)}
.main-nav__actions{display:flex;gap:8px;align-items:center}
.nav-backdrop{position:fixed;inset:0;background:rgba(14,18,22,.55);z-index:55}

/* Hero */
.hero{background:linear-gradient(135deg,#0e1216 0%,#1f2b33 60%,#2b3a44 100%);color:#dfe5ea;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.03) 0 2px,transparent 2px 22px);pointer-events:none}
.hero__inner{position:relative;z-index:1;padding:96px 20px 88px;max-width:900px}
.hero__eyebrow{color:var(--a3-accent);text-transform:uppercase;letter-spacing:.2em;font-size:.78rem;font-weight:700;margin-bottom:14px}
.hero__title{color:#fff;font-size:3.4rem;line-height:1.05;text-transform:uppercase;margin-bottom:16px}
.hero__sub{font-size:1.2rem;color:#b9c3cb;margin-bottom:32px}
.hero__actions{display:flex;gap:12px;flex-wrap:wrap}
.hero__stats{list-style:none;display:flex;gap:40px;padding:0;margin:56px 0 0;flex-wrap:wrap}
.hero__stats li{display:flex;flex-direction:column;border-left:3px solid var(--a3-accent);padding-left:14px}
.hero__stats strong{color:#fff;font-size:1.3rem}
.hero__stats span{color:#98a4ae;font-size:.85rem}

/* Process strip */
.process-strip{background:var(--a3-accent)}
.process{list-style:none;display:flex;margin:0;padding:0;flex-wrap:wrap}
.process li{flex:1 1 20%;color:#fff;font-weight:800;text-transform:uppercase;letter-spacing:.06em;padding:20px 10px;display:flex;align-items:center;gap:10px;justify-content:center;font-size:.95rem;border-right:1px solid rgba(255,255,255,.2)}
.process li:last-child{border-right:0}
.process span{opacity:.55;font-size:.8rem}

/* Page hero */
.page-hero{background:var(--a3-ink-2);padding:56px 0;border-bottom:4px solid var(--a3-accent)}
.page-hero__title{color:#fff;margin:0;font-size:2.3rem}
.breadcrumbs{margin-top:10px;font-size:.85rem;color:#8f9aa5;display:flex;gap:8px;flex-wrap:wrap}
.breadcrumbs a{color:#b9c3cb}
.breadcrumbs .current{color:var(--a3-accent)}

/* About grid */
.about-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:56px;align-items:start}
.checklist{list-style:none;padding:0;margin:0;background:var(--a3-bg-alt);border-left:4px solid var(--a3-accent);border-radius:var(--a3-radius)}
.checklist li{padding:12px 18px 12px 44px;position:relative;border-bottom:1px solid #e7ebee;font-size:.94rem}
.checklist li:last-child{border-bottom:0}
.checklist li::before{content:"";position:absolute;left:18px;top:18px;width:6px;height:11px;border-right:2px solid var(--a3-accent);border-bottom:2px solid var(--a3-accent);transform:rotate(45deg)}

/* Cards */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card-grid--4{grid-template-columns:repeat(4,1fr)}
.card{background:#fff;border:1px solid var(--a3-line);border-radius:var(--a3-radius);padding:28px;position:relative;transition:.18s ease}
.card:hover{box-shadow:var(--a3-shadow-lg);transform:translateY(-3px);border-color:#d3dade}
.card__num{position:absolute;top:18px;right:20px;font-weight:900;font-size:1.6rem;color:#eef1f3}
.card__title{font-size:1.15rem;margin-bottom:10px}
.card__title a{color:var(--a3-ink)}
.card__title a:hover{color:var(--a3-accent)}
.card p{font-size:.93rem}
.card--post{padding:0;overflow:hidden}
.card--post .card__body{padding:22px}
.tag-list{list-style:none;padding:0;margin:0 0 14px;display:flex;flex-wrap:wrap;gap:6px}
.tag-list li{background:var(--a3-bg-alt);border:1px solid var(--a3-line);border-radius:100px;font-size:.75rem;padding:4px 11px;color:var(--a3-muted)}
.dot-list{list-style:none;padding:0;margin:0 0 14px}
.dot-list li{padding-left:16px;position:relative;font-size:.9rem;padding-bottom:5px}
.dot-list li::before{content:"";position:absolute;left:0;top:10px;width:5px;height:5px;background:var(--a3-accent);border-radius:50%}

/* Vendor CTA */
.vendor-cta{display:grid;grid-template-columns:2fr 1fr;gap:40px;align-items:center}

/* CTA strip */
.cta-strip{background:var(--a3-ink-2);color:#c9d1d9;padding:52px 0}
.cta-strip h2{color:#fff;font-size:1.7rem;margin-bottom:6px}
.cta-strip p{margin:0}
.cta-strip__inner{display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.cta-strip__actions{display:flex;gap:12px;flex-wrap:wrap}

/* Entry */
.entry__content{max-width:860px}
.entry__content--intro{margin-bottom:40px}
.entry__content h2{margin-top:1.6em;font-size:1.5rem}
.entry__content ul{padding-left:0;list-style:none}
.entry__content ul li{position:relative;padding-left:18px;margin-bottom:7px}
.entry__content ul li::before{content:"";position:absolute;left:0;top:10px;width:5px;height:5px;background:var(--a3-accent);border-radius:50%}
.entry__thumb{margin-bottom:26px}
.entry__meta{color:var(--a3-muted);font-size:.85rem}
.layout-with-sidebar{display:grid;grid-template-columns:1fr 300px;gap:48px;align-items:start}
.no-sidebar .layout-with-sidebar{grid-template-columns:1fr}
.post-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}

/* RFQ */
.rfq-layout{display:grid;grid-template-columns:1.6fr 1fr;gap:48px;align-items:start}
.panel{background:#fff;border:1px solid var(--a3-line);border-radius:var(--a3-radius);padding:26px;margin-bottom:22px;box-shadow:var(--a3-shadow)}
.panel--muted{background:var(--a3-bg-alt);box-shadow:none}
.panel h3{font-size:1.05rem}
.notice-box{background:#fff8ef;border:1px solid #f5d9bd;border-left:4px solid var(--a3-accent);padding:20px 24px;border-radius:var(--a3-radius)}

/* Forms (incl. Contact Form 7) */
.wpcf7 label,.rfq-main label{display:block;font-weight:700;font-size:.86rem;color:var(--a3-ink-2);margin-bottom:16px}
.wpcf7 input[type=text],.wpcf7 input[type=email],.wpcf7 input[type=tel],.wpcf7 input[type=url],.wpcf7 input[type=number],.wpcf7 input[type=date],.wpcf7 select,.wpcf7 textarea,.search-field,input[type=text],input[type=email],input[type=tel],input[type=url],input[type=number],input[type=date],select,textarea{
  width:100%;padding:12px 14px;border:1px solid #cfd6db;border-radius:var(--a3-radius);font:inherit;font-size:.95rem;color:var(--a3-ink);background:#fff;margin-top:6px;font-weight:400}
.wpcf7 textarea,textarea{min-height:140px;resize:vertical}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--a3-accent);box-shadow:0 0 0 3px rgba(240,97,26,.14)}
.wpcf7 input[type=file]{width:100%;padding:14px;border:2px dashed #cfd6db;border-radius:var(--a3-radius);background:var(--a3-bg-alt);margin-top:6px;font-size:.88rem}
.wpcf7 input[type=submit],.wpcf7 button[type=submit]{background:var(--a3-accent);color:#fff;border:0;padding:15px 32px;border-radius:var(--a3-radius);font-weight:700;font-size:1rem;cursor:pointer;width:auto}
.wpcf7 input[type=submit]:hover{background:var(--a3-accent-dark)}
.wpcf7-not-valid-tip{color:#c0392b;font-weight:600;font-size:.82rem}
.wpcf7 form .wpcf7-response-output{border-radius:var(--a3-radius);padding:14px 18px;margin:20px 0 0}
.a3-form-row{display:grid;grid-template-columns:1fr 1fr;gap:0 20px}
.codedropz-upload-handler{border-radius:var(--a3-radius)!important;border-color:#cfd6db!important}
.search-form{display:flex;gap:8px}

/* Footer */
.site-footer{background:var(--a3-ink);color:#98a4ae;padding-top:64px;font-size:.92rem}
.site-footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr;gap:44px;padding-bottom:48px}
.site-footer h3{color:#fff;font-size:1rem;text-transform:uppercase;letter-spacing:.08em;margin-bottom:16px}
.site-footer a{color:#b9c3cb}
.site-footer a:hover{color:var(--a3-accent)}
.site-footer .a3-wordmark{margin-bottom:16px}
.footer-menu,.footer-contact{list-style:none;padding:0;margin:0}
.footer-menu li,.footer-contact li{padding:5px 0}
.footer-cta{margin-top:18px;display:flex;flex-direction:column;gap:0}
.site-footer__social{display:flex;gap:14px;margin-top:12px}
.site-footer__bottom{border-top:1px solid rgba(255,255,255,.09);padding:18px 0;font-size:.83rem}
.site-footer__bottom p{margin:0}
.widget{margin-bottom:28px}
.widget-title{font-size:1.05rem}

/* Floating WhatsApp */
.a3-wa-float{position:fixed;right:18px;bottom:18px;z-index:80;background:var(--a3-wa);color:#08341a;display:flex;align-items:center;gap:8px;padding:13px 18px;border-radius:100px;font-weight:800;font-size:.9rem;box-shadow:0 8px 24px rgba(37,211,102,.4)}
.a3-wa-float:hover{background:#1fb857;color:#08341a;transform:translateY(-2px)}
.a3-wa-float .wa-icon{width:22px;height:22px}

/* ---------- Responsive ---------- */
@media (max-width:1500px){
  .main-nav__actions .btn-primary{display:none}
  .a3-wordmark__text em{display:none}
  .site-branding{max-width:34%}
  .a3-menu > li > a{padding:26px 9px;font-size:.86rem}
}
@media (max-width:1280px){
  .a3-menu > li > a{padding:26px 8px;font-size:.85rem}
  .main-nav{gap:12px}
  .a3-wordmark__text em{display:none}
}
@media (max-width:1200px){
  .hero__title{font-size:2.9rem}
  .card-grid--4{grid-template-columns:repeat(2,1fr)}
  .site-branding{max-width:70%}
  .nav-toggle{display:block;order:3}
  .main-nav{position:fixed;top:0;right:0;width:min(380px,88vw);height:100%;background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:84px 0 40px;overflow-y:auto;transform:translateX(100%);transition:transform .25s ease;z-index:65;box-shadow:var(--a3-shadow-lg)}
  .main-nav.is-open{transform:none}
  .a3-menu{flex-direction:column;align-items:stretch;gap:0;width:100%}
  .a3-menu > li{border-bottom:1px solid var(--a3-line)}
  .a3-menu > li > a{padding:16px 22px;color:var(--a3-ink)}
  .a3-menu .menu-item-has-children > a::after{display:none}
  .a3-menu > li > .submenu-toggle,.a3-menu .submenu-toggle{display:block;position:absolute;right:0;top:0;width:56px;height:54px;padding:0}
  .a3-menu .chev{border-color:var(--a3-ink-3);transform:rotate(45deg);transition:transform .2s}
  .a3-menu li.is-open > .submenu-toggle .chev{transform:rotate(-135deg)}
  .a3-menu .sub-menu{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border-top:0;background:var(--a3-bg-alt);padding:0;max-height:0;overflow:hidden;transition:max-height .25s ease;min-width:0}
  .a3-menu li.is-open > .sub-menu{max-height:900px}
  .a3-menu .sub-menu a{padding:13px 34px;border-bottom:1px solid #e7ebee}
  .main-nav__actions{padding:22px;flex-direction:column;align-items:stretch}
  .main-nav__actions .btn-primary{display:flex}
  .main-nav__actions .btn{width:100%}
  .about-grid,.rfq-layout,.layout-with-sidebar,.vendor-cta{grid-template-columns:1fr;gap:36px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .hero__inner{padding:72px 20px}
  .site-footer__grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:768px){
  h1{font-size:1.9rem}h2{font-size:1.55rem}
  .section{padding:52px 0}
  .section__title{font-size:1.7rem}
  .hero__title{font-size:2.1rem}
  .hero__sub{font-size:1.02rem}
  .hero__stats{gap:20px;margin-top:36px}
  .hero__stats li{flex:1 1 100%}
  .process li{flex:1 1 50%;border-bottom:1px solid rgba(255,255,255,.2);font-size:.85rem}
  .post-grid{grid-template-columns:1fr}
  .cta-strip__inner{flex-direction:column;align-items:flex-start}
  .a3-form-row{grid-template-columns:1fr}
  .topbar__inner{justify-content:center;font-size:.75rem}
  .topbar__left{display:none}
}
@media (max-width:640px){
  .card-grid,.card-grid--4{grid-template-columns:1fr}
  .site-footer__grid{grid-template-columns:1fr}
}
@media (max-width:480px){
  body{font-size:15px}
  .container{padding:0 16px}
  .hero__title{font-size:1.75rem}
  .hero__actions .btn{width:100%}
  .page-hero__title{font-size:1.6rem}
  .display-1{font-size:3.4rem}
  .a3-wa-float__label{display:none}
  .a3-wa-float{padding:15px;border-radius:50%}
  .btn-row .btn{width:100%}
}
@media print{.site-header,.topbar,.a3-wa-float,.cta-strip,.site-footer{display:none}}
@media (max-width:768px){
  .site-header__inner{min-height:70px}
  .site-branding{max-width:74%}
  .site-branding img,.custom-logo{max-height:calc(var(--a3-logo-h,56px) - 8px)}
  .a3-wordmark__text strong{font-size:calc(.72rem * var(--a3-title-scale,1.25))}
  .a3-wordmark__mark{font-size:calc(1rem * var(--a3-title-scale,1.25));padding:8px 10px}
  .site-branding--pill,.site-branding--panel{padding:6px 12px}
}