:root{
  --ink:#0E1B2C; --paper:#FFFFFF; --slate:#4A5566; --rule:#D8DDE4; --tint:#F2F4F7; --accent:#1C5D8C;
  --maxw:1080px;
}
@media (prefers-color-scheme: dark){
  :root{ --ink:#E8ECF2; --paper:#0F1722; --slate:#A3ADBB; --rule:#2A3545; --tint:#152030; --accent:#6FA8D6; }
}
*{box-sizing:border-box}
html{color-scheme:light dark}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:var(--accent)}
a:focus-visible,button:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 1.5rem}

/* header */
.site-header{border-bottom:1px solid var(--rule)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;min-height:72px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:.6rem;text-decoration:none;color:var(--ink);font-weight:600;font-size:1.1rem;letter-spacing:-.01em}
.brand svg{flex:none}
.nav{display:flex;align-items:center;gap:1.75rem;flex-wrap:wrap}
.nav ul{list-style:none;display:flex;gap:1.5rem;margin:0;padding:0;flex-wrap:wrap}
.nav ul a{color:var(--slate);text-decoration:none;font-size:.95rem;padding:.25rem 0;border-bottom:2px solid transparent}
.nav ul a:hover{color:var(--ink)}
.nav ul a[aria-current="page"]{color:var(--ink);border-bottom-color:var(--accent)}
.lang{font-size:.85rem;color:var(--slate);border:1px solid var(--rule);border-radius:4px;padding:.2rem .55rem;text-decoration:none}
.lang:hover{color:var(--ink);border-color:var(--slate)}

/* hero */
.hero{border-bottom:1px solid var(--rule)}
.hero .wrap{display:grid;grid-template-columns:1.1fr 1fr;gap:3rem;align-items:center;padding-top:5rem;padding-bottom:5rem}
.hero h1{font-size:clamp(2.2rem,4.6vw,3.4rem);line-height:1.1;letter-spacing:-.025em;font-weight:600;margin:0 0 1.25rem;max-width:16ch}
.hero p{font-size:1.15rem;color:var(--slate);margin:0 0 2rem;max-width:42ch}
.btn{display:inline-block;background:var(--accent);color:#fff;text-decoration:none;font-weight:500;padding:.8rem 1.4rem;border-radius:4px}
.btn:hover{filter:brightness(1.08)}
@media (prefers-color-scheme: dark){ .btn{color:#0F1722} }
.chart{width:100%;height:auto;color:var(--accent)}
.chart .grid line{stroke:var(--rule);stroke-width:1}
.chart .line{fill:none;stroke:currentColor;stroke-width:2.5;stroke-linecap:round;stroke-linejoin:round;stroke-dasharray:900;stroke-dashoffset:900;animation:draw 1.6s ease-out .2s forwards}
.chart .area{fill:currentColor;opacity:.08}
.chart .dot{fill:currentColor;opacity:0;animation:appear .3s ease-out 1.7s forwards}
@keyframes draw{to{stroke-dashoffset:0}}
@keyframes appear{to{opacity:1}}
@media (prefers-reduced-motion: reduce){ .chart .line{animation:none;stroke-dashoffset:0} .chart .dot{animation:none;opacity:1} }

/* sections */
.section{padding:4.5rem 0}
.section h2{font-size:1.75rem;letter-spacing:-.015em;font-weight:600;margin:0 0 .5rem}
.section .intro{color:var(--slate);margin:0 0 2.5rem;max-width:56ch}
.services{border-top:1px solid var(--ink)}
.service{display:grid;grid-template-columns:1fr 2fr;gap:2rem;padding:1.75rem 0;border-bottom:1px solid var(--rule)}
.service h3{margin:0;font-size:1.2rem;font-weight:600}
.service p{margin:0;color:var(--slate);max-width:60ch}

.page-head{border-bottom:1px solid var(--rule);background:var(--tint)}
.page-head .wrap{padding-top:3.5rem;padding-bottom:3rem}
.page-head h1{font-size:clamp(2rem,4vw,2.8rem);letter-spacing:-.02em;font-weight:600;margin:0 0 .5rem}
.page-head p{color:var(--slate);margin:0;max-width:56ch;font-size:1.1rem}

.contact-row{display:grid;grid-template-columns:1fr 2fr;gap:2rem;padding:1.5rem 0;border-top:1px solid var(--ink);border-bottom:1px solid var(--rule)}
.contact-row dt{font-weight:600}
.contact-row dd{margin:0;font-size:1.25rem}
.note{border-left:3px solid var(--rule);padding:.25rem 0 .25rem 1rem;color:var(--slate);max-width:60ch}

.cta-band{background:var(--tint);border-top:1px solid var(--rule)}
.cta-band .wrap{display:flex;justify-content:space-between;align-items:center;gap:2rem;flex-wrap:wrap;padding-top:3rem;padding-bottom:3rem}
.cta-band p{margin:0;font-size:1.3rem;font-weight:500;max-width:36ch}

.site-footer{border-top:1px solid var(--rule)}
.site-footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:1rem;padding-top:1.75rem;padding-bottom:2.5rem;color:var(--slate);font-size:.9rem}

@media (max-width:760px){
  .hero .wrap{grid-template-columns:1fr;padding-top:3rem;padding-bottom:3rem;gap:2rem}
  .service,.contact-row{grid-template-columns:1fr;gap:.5rem}
}