/* ============================================
   RetroForge Supply - Core Stylesheet
   Industrial B2B Dark Theme
   ============================================ */

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--bg-dark);color:var(--text-primary);line-height:1.6;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{cursor:pointer;font-family:inherit;border:none;background:none}

/* ---------- Variables ---------- */
:root{
  --bg-dark:#0a0a0a;
  --bg-card:#141414;
  --bg-elevated:#1e1e1e;
  --border:#2a2a2a;
  --border-light:#3a3a3a;
  --text-primary:#f0f0f0;
  --text-secondary:#a0a0a0;
  --text-muted:#6a6a6a;
  --accent:#3ddc84;
  --accent-hover:#2ecf73;
  --accent-dim:rgba(61,220,132,0.15);
  --steel:#5b9fcb;
  --steel-dim:rgba(91,159,203,0.15);
  --success:#3a8d5f;
  --danger:#c44d4d;
  --radius:8px;
  --radius-lg:16px;
  --container:1200px;
  --header-h:64px;
}

/* ---------- Layout ---------- */
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-sm{padding:48px 0}
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-auto{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}

@media(max-width:768px){
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .section{padding:48px 0}
}

/* ---------- Header ---------- */
.header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(10,10,10,0.95);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  height:var(--header-h);
  display:flex;align-items:center;
}
.header__inner{
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  width:100%;
}
.header__logo{
  display:flex;align-items:center;gap:10px;
  font-weight:700;font-size:18px;
  letter-spacing:-0.02em;
}
.header__logo svg{width:32px;height:32px}
.header__nav{display:flex;gap:28px;align-items:center}
.header__nav a{font-size:14px;color:var(--text-secondary);transition:color .2s}
.header__nav a:hover{color:var(--accent)}
.header__cta{display:flex;gap:12px;align-items:center}

@media(max-width:920px){
  .header__nav{display:none}
  .header__mobile-toggle{display:flex}
}
@media(min-width:921px){
  .header__mobile-toggle{display:none}
}

/* Mobile menu toggle */
.header__mobile-toggle{
  flex-direction:column;
  gap:5px;
  padding:8px;
}
.header__mobile-toggle span{
  width:24px;height:2px;
  background:var(--text-primary);
  transition:.3s;
}

/* Mobile menu dropdown */
.mobile-menu{
  display:none;
  position:fixed;top:var(--header-h);left:0;right:0;
  background:var(--bg-dark);
  border-bottom:1px solid var(--border);
  padding:24px;
  z-index:999;
  flex-direction:column;
  gap:16px;
}
.mobile-menu.open{display:flex}
.mobile-menu a{padding:8px 0;font-size:16px;color:var(--text-secondary)}
.mobile-menu a:hover{color:var(--accent)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:10px 24px;
  border-radius:var(--radius);
  font-size:14px;font-weight:600;
  letter-spacing:0.02em;
  transition:all .2s ease;
  white-space:nowrap;
}
.btn--primary{
  background:var(--accent);
  color:#0a0a0a;
}
.btn--primary:hover{
  background:var(--accent-hover);
  transform:translateY(-1px);
}
.btn--ghost{
  background:transparent;
  color:var(--text-primary);
  border:1px solid var(--border-light);
}
.btn--ghost:hover{
  border-color:var(--accent);
  color:var(--accent);
}
.btn--whatsapp{
  background:#25d366;
  color:#fff;
}
.btn--whatsapp:hover{
  background:#1da855;
}
.btn--lg{padding:14px 32px;font-size:16px}
.btn--block{display:flex;width:100%}

/* ---------- Hero ---------- */
.hero{
  min-height:100vh;
  display:flex;align-items:center;
  position:relative;
  background:linear-gradient(135deg,#0a0a0a 0%,#131313 50%,#0a0a0a 100%);
  overflow:hidden;
}
.hero::before{
  content:'';
  position:absolute;inset:0;
  background-image:
    radial-gradient(circle at 20% 50%,rgba(61,220,132,0.08) 0%,transparent 50%),
    radial-gradient(circle at 80% 20%,rgba(91,159,203,0.06) 0%,transparent 50%);
  pointer-events:none;
}
.hero__content{position:relative;z-index:2;padding-top:var(--header-h)}
.hero__tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  background:var(--accent-dim);
  border:1px solid rgba(61,220,132,0.3);
  border-radius:100px;
  font-size:13px;color:var(--accent);
  font-weight:500;
  margin-bottom:24px;
}
.hero__title{
  font-size:clamp(32px,5vw,56px);
  font-weight:800;
  line-height:1.1;
  letter-spacing:-0.03em;
  margin-bottom:24px;
}
.hero__title span{color:var(--accent)}
.hero__desc{
  font-size:18px;
  color:var(--text-secondary);
  max-width:640px;
  margin-bottom:40px;
  line-height:1.7;
}
.hero__actions{display:flex;gap:16px;flex-wrap:wrap}

/* ---------- Stats Bar ---------- */
.stats-bar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--border);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.stat{
  background:var(--bg-dark);
  padding:32px 24px;
  text-align:center;
}
.stat__num{
  font-size:36px;
  font-weight:800;
  color:var(--accent);
  letter-spacing:-0.02em;
}
.stat__label{
  font-size:13px;
  color:var(--text-muted);
  text-transform:uppercase;
  letter-spacing:0.1em;
  margin-top:4px;
}
@media(max-width:768px){
  .stats-bar{grid-template-columns:repeat(2,1fr)}
  .stat{padding:24px 16px}
  .stat__num{font-size:28px}
}

/* ---------- Section Headers ---------- */
.section-header{text-align:center;margin-bottom:56px}
.section-header__tag{
  display:inline-block;
  font-size:13px;
  color:var(--accent);
  text-transform:uppercase;
  letter-spacing:0.15em;
  font-weight:600;
  margin-bottom:12px;
}
.section-header__title{
  font-size:clamp(28px,4vw,40px);
  font-weight:800;
  letter-spacing:-0.02em;
  margin-bottom:16px;
}
.section-header__desc{
  font-size:17px;
  color:var(--text-secondary);
  max-width:640px;
  margin:0 auto;
}

/* ---------- Cards ---------- */
.card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:32px;
  transition:all .3s ease;
}
.card:hover{
  border-color:var(--border-light);
  transform:translateY(-2px);
  box-shadow:0 12px 40px rgba(0,0,0,0.4);
}
.card__icon{
  width:56px;height:56px;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--accent-dim);
  margin-bottom:20px;
}
.card__icon svg{width:28px;height:28px;color:var(--accent)}
.card__title{
  font-size:20px;
  font-weight:700;
  margin-bottom:12px;
}
.card__desc{
  font-size:15px;
  color:var(--text-secondary);
  line-height:1.6;
  margin-bottom:16px;
}
.card__link{
  font-size:14px;
  font-weight:600;
  color:var(--accent);
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:gap .2s;
}
.card__link:hover{gap:10px}

/* ---------- Platform Grid ---------- */
.platform-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(160px,1fr));
  gap:16px;
}
.platform-tile{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:24px 16px;
  text-align:center;
  transition:all .2s;
}
.platform-tile:hover{
  border-color:var(--accent);
  background:var(--bg-elevated);
}
.platform-tile__name{
  font-weight:700;
  font-size:16px;
  margin-bottom:4px;
}
.platform-tile__desc{
  font-size:12px;
  color:var(--text-muted);
}

/* ---------- Process Steps ---------- */
.process{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  position:relative;
}
.process-step{
  text-align:center;
  position:relative;
}
.process-step__num{
  width:48px;height:48px;
  border-radius:50%;
  background:var(--bg-elevated);
  border:2px solid var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-weight:800;
  font-size:18px;
  color:var(--accent);
  margin:0 auto 16px;
  position:relative;
  z-index:2;
}
.process-step__title{
  font-weight:700;
  font-size:16px;
  margin-bottom:8px;
}
.process-step__desc{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.5;
}
@media(max-width:768px){
  .process{grid-template-columns:1fr;gap:32px}
}

/* ---------- CTA Section ---------- */
.cta-section{
  background:linear-gradient(135deg,var(--bg-elevated) 0%,#101010 100%);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.cta-section__inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.cta-section__title{
  font-size:clamp(24px,3vw,32px);
  font-weight:800;
  letter-spacing:-0.02em;
  margin-bottom:8px;
}
.cta-section__desc{
  color:var(--text-secondary);
  font-size:16px;
}

/* ---------- Footer ---------- */
.footer{
  background:#060606;
  border-top:1px solid var(--border);
  padding:64px 0 32px;
}
.footer__grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.5fr;
  gap:48px;
  margin-bottom:48px;
}
.footer__brand-name{
  font-size:20px;font-weight:800;
  margin-bottom:8px;
}
.footer__brand-desc{
  font-size:14px;
  color:var(--text-muted);
  margin-bottom:16px;
  line-height:1.6;
}
.footer__col-title{
  font-size:13px;
  font-weight:700;
  color:var(--text-muted);
  text-transform:uppercase;
  letter-spacing:0.1em;
  margin-bottom:16px;
}
.footer__links li{margin-bottom:8px}
.footer__links a{
  font-size:14px;
  color:var(--text-secondary);
  transition:color .2s;
}
.footer__links a:hover{color:var(--accent)}
.footer__contact p{
  font-size:14px;
  color:var(--text-secondary);
  margin-bottom:6px;
}
.footer__bottom{
  border-top:1px solid var(--border);
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:16px;
}
.footer__bottom p{
  font-size:13px;
  color:var(--text-muted);
}
.footer__legal-links{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}
.footer__legal-links a{
  font-size:13px;
  color:var(--text-muted);
}
.footer__legal-links a:hover{color:var(--accent)}

@media(max-width:768px){
  .footer__grid{grid-template-columns:1fr;gap:32px}
  .footer__bottom{flex-direction:column;text-align:center}
}

/* ---------- Page Header (inner pages) ---------- */
.page-header{
  padding:calc(var(--header-h) + 64px) 0 48px;
  background:linear-gradient(135deg,#0a0a0a 0%,#131313 100%);
  border-bottom:1px solid var(--border);
}
.page-header__tag{
  display:inline-block;
  font-size:13px;
  color:var(--accent);
  text-transform:uppercase;
  letter-spacing:0.15em;
  font-weight:600;
  margin-bottom:12px;
}
.page-header__title{
  font-size:clamp(28px,4vw,44px);
  font-weight:800;
  letter-spacing:-0.02em;
  margin-bottom:16px;
}
.page-header__desc{
  font-size:17px;
  color:var(--text-secondary);
  max-width:640px;
}

/* ---------- Content blocks ---------- */
.content-block{
  max-width:760px;
  margin:0 auto;
}
.content-block h2{
  font-size:clamp(22px,3vw,28px);
  font-weight:700;
  margin:40px 0 16px;
}
.content-block h3{
  font-size:20px;
  font-weight:600;
  margin:32px 0 12px;
}
.content-block p{
  font-size:16px;
  color:var(--text-secondary);
  margin-bottom:16px;
  line-height:1.8;
}
.content-block ul{margin:16px 0 16px 20px}
.content-block ul li{
  color:var(--text-secondary);
  margin-bottom:8px;
  list-style:disc;
  line-height:1.6;
}
.content-block img{border-radius:var(--radius);margin:24px 0}

/* ---------- FAQ ---------- */
.faq-item{
  border-bottom:1px solid var(--border);
  padding:20px 0;
}
.faq-item__q{
  font-weight:600;
  font-size:16px;
  margin-bottom:8px;
  display:flex;
  align-items:start;
  gap:8px;
}
.faq-item__q::before{
  content:'Q';
  color:var(--accent);
  font-weight:800;
  flex-shrink:0;
}
.faq-item__a{
  color:var(--text-secondary);
  font-size:15px;
  padding-left:22px;
  line-height:1.6;
}

/* ---------- Gallery ---------- */
.gallery{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(200px,1fr));
  gap:12px;
}
.gallery img{
  border-radius:var(--radius);
  border:1px solid var(--border);
  transition:transform .2s;
}
.gallery img:hover{transform:scale(1.03)}

/* ---------- Utility ---------- */
.text-center{text-align:center}
.text-accent{color:var(--accent)}
.text-muted{color:var(--text-muted)}
.mt-0{margin-top:0}
.mb-0{margin-bottom:0}
.hidden{display:none}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;
  gap:8px;
  font-size:13px;
  color:var(--text-muted);
  margin-bottom:24px;
}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb span{color:var(--text-muted)}


/* ---------- WhatsApp Float Button ---------- */
.wa-float{
  position:fixed;
  right:22px;
  bottom:22px;
  z-index:9999;
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
}
.wa-float__icon{
  width:58px;height:58px;
  border-radius:50%;
  background:#25D366;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 6px 20px rgba(37,211,102,.45);
  transition:transform .2s,box-shadow .2s;
  position:relative;
}
.wa-float__icon svg{width:30px;height:30px;fill:#fff}
.wa-float:hover .wa-float__icon{
  transform:scale(1.08);
  box-shadow:0 8px 28px rgba(37,211,102,.6);
}
.wa-float__icon::after{
  content:'';
  position:absolute;
  inset:-4px;
  border-radius:50%;
  border:2px solid rgba(37,211,102,.5);
  animation:waPulse 2.2s ease-out infinite;
}
@keyframes waPulse{
  0%{transform:scale(1);opacity:1}
  70%{transform:scale(1.35);opacity:0}
  100%{transform:scale(1.35);opacity:0}
}
.wa-float__label{
  background:#1b232b;
  color:#e8eef4;
  font-size:13px;
  font-weight:600;
  padding:8px 14px;
  border-radius:8px;
  border:1px solid var(--border);
  white-space:nowrap;
  opacity:0;
  transform:translateX(8px);
  transition:opacity .2s,transform .2s;
  pointer-events:none;
  box-shadow:0 4px 14px rgba(0,0,0,.4);
}
.wa-float:hover .wa-float__label{
  opacity:1;
  transform:translateX(0);
}
@media(max-width:768px){
  .wa-float{right:16px;bottom:16px}
  .wa-float__icon{width:52px;height:52px}
  .wa-float__icon svg{width:27px;height:27px}
  .wa-float__label{display:none}
}


/* ================= V3 IDENTITY ================= */
/* Display typeface: industrial condensed */
h1,h2,h3,h4,.page-header__title,.section-header__title,.footer__col-title,.footer__brand-name{
  font-family:'Oswald','Inter',sans-serif;
  font-weight:600;
  letter-spacing:.4px;
}
.header__logo,.header__nav a,.btn,.stats-bar__value,.footer__legal-links a,.wa-float__label{
  font-family:'Oswald','Inter',sans-serif;
}
.header__logo{letter-spacing:.8px;font-weight:600}
.header__nav a{text-transform:uppercase;font-size:12.5px;letter-spacing:1px;font-weight:500}
.btn{text-transform:uppercase;letter-spacing:1px;font-weight:600;font-size:13px}
.page-header__title,.section-header__title{text-transform:uppercase;letter-spacing:1.2px}
.page-header__tag,.section-header__tag{text-transform:uppercase;letter-spacing:2px;font-family:'Oswald','Inter',sans-serif;font-weight:500}
.stats-bar__value{font-weight:700}
.hero__tag{text-transform:uppercase;letter-spacing:2px;font-family:'Oswald','Inter',sans-serif}

/* Blueprint grid hero */
.hero{
  background-image:
    linear-gradient(rgba(61,220,132,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(61,220,132,.05) 1px,transparent 1px),
    radial-gradient(ellipse 55% 60% at 75% 25%,rgba(61,220,132,.10),transparent 70%);
  background-size:44px 44px,44px 44px,100% 100%;
}
/* Section tag bracket style */
.page-header__tag,.section-header__tag{
  display:inline-flex;align-items:center;gap:8px;
}
.page-header__tag::before,.section-header__tag::before{content:'[';color:var(--accent);font-weight:700}
.page-header__tag::after,.section-header__tag::after{content:']';color:var(--accent);font-weight:700}

/* Card hover: green top rule */
.card:hover,.platform-card:hover{border-top:2px solid var(--accent)}

/* Video embeds */
.video-embed iframe{display:block;width:100%;aspect-ratio:16/9;border:1px solid var(--border);border-radius:var(--radius);background:#000}
.video-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px;margin:24px 0}
.factory-media{display:grid;grid-template-columns:1.25fr 1fr;gap:20px;align-items:start}
@media(max-width:860px){.factory-media{grid-template-columns:1fr}}
.gallery img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}

/* MOQ Badge */
.moq-badge{display:inline-block;background:rgba(61,220,132,.12);border:1px solid rgba(61,220,132,.4);color:#3ddc84;font-family:'Oswald',sans-serif;font-weight:600;font-size:14px;letter-spacing:1px;text-transform:uppercase;padding:6px 16px;border-radius:4px}

/* Email Capture */
.email-capture{background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);padding:32px;margin:48px 0;text-align:center}
.email-capture h3{font-family:'Oswald',sans-serif;text-transform:uppercase;letter-spacing:1px;margin-bottom:8px;color:var(--text-primary)}
.email-capture p{color:var(--text-secondary);margin-bottom:20px}
.email-capture__form{display:flex;gap:8px;max-width:480px;margin:0 auto;flex-wrap:wrap}
.email-capture__form input[type="email"]{flex:1;min-width:200px;padding:10px 16px;background:var(--bg-dark);border:1px solid var(--border);border-radius:4px;color:var(--text-primary);font-family:inherit;font-size:14px}
.email-capture__form input[type="email"]:focus{outline:none;border-color:var(--accent)}
.email-capture__form button{padding:10px 24px;background:var(--accent);color:var(--bg-dark);border:none;border-radius:4px;font-family:'Oswald',sans-serif;font-weight:600;text-transform:uppercase;letter-spacing:1px;font-size:13px;cursor:pointer;white-space:nowrap}
.email-capture__form button:hover{opacity:.9}