:root{--navy:#0f2a4a;--navy2:#16365e;--teal:#5b8a93;--teal-l:#e8f0f2;--ink:#1c2733;--mut:#5d6b7a;--line:#dde3ea;--paper:#fff;--soft:#f5f7fa;--serif:"Source Serif 4",Georgia,serif;--sans:"Inter",system-ui,sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;font:400 1rem/1.65 var(--sans);color:var(--ink);background:var(--paper)}
img{max-width:100%;height:auto}a{color:var(--navy2)}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px}
h1,h2,h3{font-family:var(--serif);color:var(--navy);line-height:1.15;margin:0 0 .5em}
h1{font-size:clamp(2.2rem,5vw,3.5rem);font-weight:700;letter-spacing:-.02em}
h2{font-size:clamp(1.7rem,3.4vw,2.4rem);font-weight:700}h3{font-size:1.25rem;font-weight:600}
.eyebrow{font:600 .78rem/1 var(--sans);letter-spacing:.14em;text-transform:uppercase;color:var(--teal);margin:0 0 18px}
.lede{font-size:1.12rem;color:var(--mut);max-width:680px}
/* nav */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
.nav img{height:48px;width:auto;display:block}
.links{display:flex;gap:30px;align-items:center}
.links a{text-decoration:none;color:var(--ink);font-weight:500;font-size:.95rem}.links a:hover{color:var(--teal)}
.links a.btn{color:#fff}
.burger{display:none;background:none;border:0;font-size:1.6rem;color:var(--navy);cursor:pointer}
/* buttons */
.btn{display:inline-block;padding:13px 24px;border-radius:4px;background:var(--navy);color:#fff;text-decoration:none;font-weight:600;font-size:.95rem;border:2px solid var(--navy);transition:.2s;cursor:pointer;font-family:var(--sans)}
.btn:hover{background:var(--navy2)}.btn.ghost{background:transparent;color:var(--navy)}.btn.ghost:hover{background:var(--teal-l)}
.btn.sm{padding:9px 18px}
/* hero */
.hero{padding:84px 0 72px;background:linear-gradient(180deg,var(--soft),#fff)}
.hero-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:56px;align-items:center}
.hero p.lede{margin:0 0 30px}.cta{display:flex;gap:14px;flex-wrap:wrap}
.panel{background:#fff;border:1px solid var(--line);border-top:4px solid var(--teal);border-radius:6px;padding:26px 28px;box-shadow:0 12px 36px rgba(15,42,74,.07)}
.panel h3{font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;font-family:var(--sans);color:var(--teal);margin-bottom:14px}
.panel dl{margin:0}.panel div{display:grid;grid-template-columns:120px 1fr;gap:12px;padding:10px 0;border-bottom:1px solid var(--line);font-size:.92rem}
.panel div:last-child{border:0}.panel dt{color:var(--mut)}.panel dd{margin:0;font-weight:500}
/* sections */
section.s{padding:84px 0}section.alt{background:var(--soft)}
.s-head{margin-bottom:44px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:6px;padding:30px}
.card ul,.list{padding-left:18px;margin:14px 0 0;color:var(--mut)}.card li,.list li{margin-bottom:6px}
.card p{color:var(--mut);margin:0}
.diff{display:grid;grid-template-columns:repeat(3,1fr);gap:36px 30px}
.diff h3{padding-top:14px;border-top:3px solid var(--teal)}.diff p{color:var(--mut);margin:0}
.note{font-size:.9rem;color:var(--mut);margin-top:24px}
.exp{background:#fff;border:1px solid var(--line);border-radius:6px;padding:30px;margin-bottom:22px}
.exp .meta{font-size:.8rem;color:var(--teal);font-weight:600;letter-spacing:.08em;margin-bottom:6px}
.exp p{color:var(--mut);margin:0}
.cs{display:flex;flex-direction:column}.cs .tag{font:600 .75rem/1 var(--sans);letter-spacing:.12em;text-transform:uppercase;color:var(--teal);margin-bottom:12px}
.cs a.more{margin-top:auto;padding-top:18px;font-weight:600;text-decoration:none}.cs a.more:hover{text-decoration:underline}
.feat{display:flex;gap:12px;flex-wrap:wrap;margin:22px 0 30px}
.feat span{background:var(--teal-l);color:var(--navy);padding:8px 16px;border-radius:30px;font-weight:600;font-size:.9rem}
.about-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin-top:20px}
.about-cols p{color:var(--mut);margin:0}
.contact{background:var(--navy);color:#dbe4ee}.contact h2,.contact h3{color:#fff}.contact .eyebrow{color:#9fc3cb}
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.contact a{color:#fff}.contact dl{margin:0}.contact dl div{padding:10px 0;border-bottom:1px solid rgba(255,255,255,.15);display:grid;grid-template-columns:100px 1fr}
.contact dt{color:#9fc3cb}.contact dd{margin:0}.contact a.btn{background:#fff;color:var(--navy);border-color:#fff;margin-top:26px}
.list.cols{columns:3;column-gap:30px;padding-left:20px}
@media(max-width:860px){.list.cols{columns:1}}
/* footer */
footer{padding:36px 0;border-top:1px solid var(--line)}footer .wrap{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
footer img{height:44px}footer p{margin:0;color:var(--mut);font-size:.88rem}
.cookie{position:fixed;left:16px;right:16px;bottom:16px;max-width:760px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:8px;box-shadow:0 10px 40px rgba(0,0,0,.18);padding:18px 22px;display:flex;gap:14px;align-items:center;flex-wrap:wrap;z-index:100;font-size:.88rem;color:var(--mut)}
.cookie p{margin:0;flex:1 1 280px}.cookie[hidden]{display:none}
/* case study page */
.article{padding:64px 24px 90px;max-width:808px}.article h1{font-size:clamp(2rem,4vw,2.8rem)}
.article h2{font-size:1.5rem;margin-top:2em}.article p{color:#3a4755}
.back{display:inline-block;margin-bottom:26px;text-decoration:none;font-weight:600}
@media(max-width:860px){
 .hero-grid,.grid2,.grid3,.diff,.about-cols,.contact-grid{grid-template-columns:1fr}
 .burger{display:block}.links{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start;padding:20px 24px;gap:18px}
 .links.open{display:flex}.hero{padding:56px 0}section.s{padding:60px 0}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}