/* ===== Calteon — industrial engineering, charcoal + terracotta ===== */
*{box-sizing:border-box}
:root{
  --bg:#343A40; --bg-deep:#2B3035; --panel:#3D444B; --panel-2:#454C53;
  --ink:#F0F0F0; --ink-soft:#C4C9CE; --ink-mute:#9AA1A8;
  --accent:#E07A5F; --accent-soft:rgba(224,122,95,.14); --accent-line:rgba(224,122,95,.45);
  --line:rgba(240,240,240,.12); --line-2:rgba(240,240,240,.07);
  --head:"Archivo",system-ui,sans-serif; --body:"IBM Plex Sans",system-ui,sans-serif;
  --wrap:1140px;
}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--body);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block;height:auto}
h1,h2,h3{font-family:var(--head);line-height:1.08;margin:0;font-weight:800;letter-spacing:-.01em}
p{margin:0}
a{color:inherit;text-decoration:none}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px}
.accent{color:var(--accent)}
.skip-link{position:absolute;left:-999px;top:0;background:var(--accent);color:#1a1a1a;padding:10px 16px;z-index:200;border-radius:0 0 8px 0}
.skip-link:focus{left:0}

/* Header */
.site-header{position:sticky;top:0;z-index:100;background:rgba(43,48,53,.72);backdrop-filter:blur(10px);border-bottom:1px solid var(--line-2);transition:background .3s,border-color .3s}
.site-header.scrolled{background:rgba(43,48,53,.96);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px}
.brand{display:flex;align-items:center;gap:12px}
.brand img{border-radius:8px;border:1px solid var(--line)}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text strong{font-family:var(--head);font-size:18px;font-weight:700;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-mute)}
.nav{display:flex;align-items:center;gap:28px}
.nav a{font-size:15px;color:var(--ink-soft);transition:color .2s}
.nav a:hover{color:var(--ink)}
.nav-cta{border:1px solid var(--accent-line);color:var(--accent)!important;padding:8px 16px;border-radius:999px}
.nav-toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.nav-toggle span{width:24px;height:2px;background:var(--ink);transition:.25s}

/* Hero */
.hero{position:relative;padding:92px 0 76px;overflow:hidden;background:linear-gradient(180deg,#2B3035,#343A40)}
.grid-bg{position:absolute;inset:0;background-image:linear-gradient(var(--line-2) 1px,transparent 1px),linear-gradient(90deg,var(--line-2) 1px,transparent 1px);background-size:46px 46px;mask-image:radial-gradient(circle at 70% 40%,#000,transparent 72%);opacity:.8}
.hero-grid{position:relative;display:grid;grid-template-columns:1.25fr .9fr;gap:48px;align-items:center}
.eyebrow{font-family:var(--head);font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-weight:600;margin-bottom:18px}
.hero h1{font-size:clamp(2.6rem,6.5vw,4.6rem);margin-bottom:22px}
.lede{font-size:1.18rem;color:var(--ink-soft);max-width:34ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.btn{display:inline-block;font-family:var(--head);font-weight:600;font-size:15px;padding:13px 24px;border-radius:8px;transition:transform .2s,background .2s,border-color .2s,color .2s;cursor:pointer}
.btn-primary{background:var(--accent);color:#231713;border:1px solid var(--accent)}
.btn-ghost{border:1px solid var(--line);color:var(--ink)}
.hero-stats{display:flex;gap:40px;margin:36px 0 0;flex-wrap:wrap}
.hero-stats dt{font-family:var(--head);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-mute);margin:0 0 4px}
.hero-stats dd{margin:0;font-size:15px;color:var(--ink-soft)}
.hero-art{display:flex;justify-content:center}
.hex-art{width:min(100%,340px);height:auto}
.hex{fill:none;stroke:var(--accent);stroke-width:2;transform-origin:120px 100px}
.hex.h1{stroke:var(--accent-line);animation:hspin 26s linear infinite}
.hex.h2{stroke:var(--accent);opacity:.8;animation:hspin 20s linear infinite reverse}
.hex.h3{fill:var(--accent-soft);stroke:var(--accent);animation:hpulse 4.5s ease-in-out infinite}
.hex-dots circle{fill:var(--accent);animation:hpulse 4.5s ease-in-out infinite}
@keyframes hspin{to{transform:rotate(360deg)}}
@keyframes hpulse{0%,100%{opacity:.45}50%{opacity:1}}

/* Ticker */
.ticker{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-deep);overflow:hidden;padding:14px 0}
.ticker-track{display:flex;gap:26px;align-items:center;white-space:nowrap;width:max-content;animation:scrollx 28s linear infinite;font-family:var(--head);font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-mute)}
.ticker .dot{color:var(--accent)}
@keyframes scrollx{to{transform:translateX(-50%)}}

/* Sections */
.section{padding:84px 0}
.section-head{max-width:620px;margin-bottom:44px}
.kicker{font-family:var(--head);font-size:12.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent);font-weight:600;margin-bottom:14px}
.kicker.on-dark{color:var(--accent)}
.section-head h2{font-size:clamp(1.9rem,4vw,2.9rem)}
.section-head .lead{margin-top:16px;color:var(--ink-soft);font-size:1.08rem}
.lead.on-dark{color:var(--ink-soft)}

.about-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
.about-body p{color:var(--ink-soft);margin-bottom:16px}
.about-body p:last-child{margin-bottom:0}

.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cap-card{background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:28px 24px;transition:transform .25s,border-color .25s,background .25s}
.cap-no{font-family:var(--head);font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--accent);display:block;margin-bottom:14px}
.cap-card h3{font-size:1.25rem;margin-bottom:10px}
.cap-card p{color:var(--ink-soft);font-size:.98rem}

/* Specs band (dark) */
.specs{background:var(--bg-deep);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.spec-rows{display:flex;flex-direction:column;gap:14px}
.spec-row{display:grid;grid-template-columns:120px 1fr auto;gap:24px;align-items:center;background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:10px;padding:22px 26px;transition:transform .25s,background .25s}
.spec-label{font-family:var(--head);font-weight:700;font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
.spec-main h3{font-size:1.2rem;margin-bottom:6px}
.spec-main p{color:var(--ink-soft);font-size:.98rem}
.spec-tag{font-family:var(--head);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-mute);border:1px solid var(--line);padding:6px 12px;border-radius:999px;white-space:nowrap}

/* Outcomes */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{text-align:center;padding:30px 18px;background:var(--panel);border:1px solid var(--line);border-radius:12px;transition:transform .25s,border-color .25s}
.stat strong{display:block;font-family:var(--head);font-size:2.6rem;font-weight:800;color:var(--accent);line-height:1}
.stat span{display:block;margin-top:10px;color:var(--ink-soft);font-size:.95rem}

/* Quote */
.quote-band{background:linear-gradient(120deg,#E07A5F,#c25f45);color:#2a140d;padding:76px 0}
.quote-inner{max-width:820px;text-align:center}
.quote-band blockquote{font-family:var(--head);font-weight:700;font-size:clamp(1.5rem,3.4vw,2.3rem);line-height:1.25;margin:0}
.quote-attr{margin-top:20px;font-family:var(--head);font-size:13px;letter-spacing:.16em;text-transform:uppercase;font-weight:600}

/* FAQ */
.faq-wrap{max-width:820px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:none;border:0;color:var(--ink);font-family:var(--head);font-weight:600;font-size:1.06rem;text-align:left;padding:20px 22px;cursor:pointer}
.faq-ico{position:relative;width:16px;height:16px;flex:none}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;background:var(--accent);transition:transform .25s}
.faq-ico::before{top:7px;left:0;width:16px;height:2px}
.faq-ico::after{left:7px;top:0;width:2px;height:16px}
.faq-item.open .faq-ico::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:320px}
.faq-a p{padding:0 22px 22px;color:var(--ink-soft);font-size:1rem}

/* Contact */
.contact{background:var(--bg-deep);border-top:1px solid var(--line)}
.contact-inner{max-width:680px;text-align:center}
.contact-inner h2{font-size:clamp(1.9rem,4vw,2.8rem);margin-bottom:16px}
.contact-inner p{color:var(--ink-soft);margin-bottom:28px}

/* Footer */
.site-footer{background:#23272B;border-top:1px solid var(--line)}
.footer-inner{display:flex;justify-content:space-between;gap:30px;padding-top:48px;padding-bottom:28px;flex-wrap:wrap}
.footer-tag{color:var(--ink-mute);margin-top:14px;font-size:.95rem}
.footer-nav{display:flex;gap:24px;flex-wrap:wrap;align-items:center}
.footer-nav a{color:var(--ink-soft);font-size:15px;transition:color .2s}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:20px;padding-bottom:30px;border-top:1px solid var(--line-2);color:var(--ink-mute);font-size:14px}

/* Reveal */
.js .reveal{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* Hover (after reveal rule) */
@media (hover:hover) and (pointer:fine){
  .cap-card:hover{transform:translateY(-6px);border-color:var(--accent-line);background:var(--panel-2)}
  .spec-row:hover{transform:translateX(6px);background:var(--panel-2)}
  .stat:hover{transform:translateY(-6px);border-color:var(--accent-line)}
  .btn-primary:hover{transform:translateY(-3px);background:#ea8a71}
  .btn-ghost:hover{transform:translateY(-3px);border-color:var(--accent-line);color:var(--accent)}
  .footer-nav a:hover{color:var(--accent)}
}

/* Responsive */
@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-art{order:-1}
  .hex-art{width:min(70%,260px)}
  .about-grid{grid-template-columns:1fr;gap:28px}
  .cap-grid{grid-template-columns:repeat(2,1fr)}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:620px){
  .nav{position:fixed;inset:72px 0 auto 0;flex-direction:column;background:var(--bg-deep);gap:0;padding:8px 0;border-bottom:1px solid var(--line);transform:translateY(-130%);transition:transform .3s;max-height:calc(100vh - 72px);overflow:auto}
  .nav.open{transform:translateY(0)}
  .nav a{padding:15px 24px;width:100%;border-bottom:1px solid var(--line-2)}
  .nav-cta{margin:12px 24px;text-align:center}
  .nav-toggle{display:flex}
  .cap-grid,.stat-grid{grid-template-columns:1fr}
  .spec-row{grid-template-columns:1fr;gap:10px;text-align:left}
  .spec-tag{justify-self:start}
  .hero{padding:64px 0 56px}
  .section{padding:62px 0}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;scroll-behavior:auto!important}
  .js .reveal{opacity:1;transform:none}
}