:root{--ink:#17191d;--paper:#f3f0e9;--bronze:#a98252;--muted:#6b6f76;--white:#fff;--line:rgba(23,25,29,.14)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,Arial,sans-serif;background:var(--paper);color:var(--ink)}a{color:inherit;text-decoration:none}img{display:block;width:100%}
.container{width:min(1180px,calc(100% - 48px));margin:auto}.header{position:fixed;z-index:20;top:0;left:0;right:0;display:flex;align-items:center;justify-content:space-between;padding:20px 28px;color:white;background:linear-gradient(to bottom,rgba(0,0,0,.38),transparent)}.brand{display:flex;gap:12px;align-items:center;font-weight:700;letter-spacing:.08em}.mark{border:1px solid rgba(255,255,255,.7);padding:10px 9px}.nav{display:flex;gap:26px;font-size:.78rem;text-transform:uppercase;letter-spacing:.12em}.nav a{opacity:.82}.nav a:hover{opacity:1;color:#d9b27c}
.hero{min-height:100vh;position:relative;display:grid;align-items:end;color:#fff;background:url('../images/hero/hero-cathedrale-tournai.jpg') center/cover no-repeat}.hero:after{content:'';position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,7,10,.76) 0%,rgba(5,7,10,.24) 58%,rgba(5,7,10,.3) 100%),linear-gradient(0deg,rgba(5,7,10,.64),transparent 50%)}.hero-inner{position:relative;z-index:1;padding:150px 0 84px}.eyebrow{text-transform:uppercase;letter-spacing:.19em;font-size:.75rem;color:#d9b27c}.hero h1{font-family:Georgia,serif;font-weight:400;font-size:clamp(3rem,7.5vw,7.2rem);line-height:.91;max-width:980px;margin:22px 0 28px}.hero p{max-width:580px;font-size:1.18rem;line-height:1.7;color:rgba(255,255,255,.83)}.button{display:inline-block;margin-top:22px;padding:14px 20px;border:1px solid currentColor;text-transform:uppercase;letter-spacing:.12em;font-size:.72rem;transition:.25s}.button:hover{background:var(--bronze);border-color:var(--bronze);color:white}
.section{padding:110px 0}.section.white{background:#fff}.section.dark{background:#17191d;color:#fff}.kicker{color:var(--bronze);text-transform:uppercase;letter-spacing:.18em;font-size:.72rem}.section h2{font-family:Georgia,serif;font-weight:400;font-size:clamp(2.4rem,5vw,5.3rem);line-height:1.02;margin:16px 0 24px}.lead{max-width:720px;color:var(--muted);font-size:1.1rem;line-height:1.75}.dark .lead{color:rgba(255,255,255,.65)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);margin-top:60px}.stat{padding:32px 24px 20px 0;border-right:1px solid var(--line)}.stat:last-child{border-right:0}.stat strong{font-family:Georgia,serif;font-size:3.2rem;font-weight:400;display:block}.stat span{color:var(--muted);font-size:.86rem}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin:35px 0}.filter{border:1px solid var(--line);background:transparent;padding:10px 15px;cursor:pointer}.filter.active,.filter:hover{background:var(--ink);color:#fff}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.card{background:#fff;overflow:hidden;border:1px solid var(--line);transition:.3s}.card:hover{transform:translateY(-5px);box-shadow:0 18px 45px rgba(20,22,25,.12)}.card-media{aspect-ratio:8/5;overflow:hidden;background:#ddd}.card img{height:100%;object-fit:cover;transition:.55s}.card:hover img{transform:scale(1.04)}.card-body{padding:22px}.meta{font-size:.72rem;text-transform:uppercase;letter-spacing:.11em;color:var(--bronze)}.card h3{font-family:Georgia,serif;font-size:1.65rem;font-weight:400;margin:10px 0}.card p{color:var(--muted);line-height:1.55;font-size:.92rem}.explore{display:inline-block;margin-top:8px;font-size:.78rem;text-transform:uppercase;letter-spacing:.1em}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:rgba(255,255,255,.12);margin-top:55px}.step{background:#17191d;padding:34px}.step b{color:#d9b27c}.step h3{font-family:Georgia,serif;font-weight:400;font-size:1.65rem}.step p{color:rgba(255,255,255,.6);line-height:1.6}
.cta{display:flex;justify-content:space-between;gap:30px;align-items:end}.footer{padding:34px 0;border-top:1px solid var(--line);font-size:.82rem;color:var(--muted)}
.project-hero{min-height:68vh;padding-top:120px;display:flex;align-items:end;color:#fff;background-position:center;background-size:cover;position:relative}.project-hero:after{content:'';position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.75),rgba(0,0,0,.08))}.project-hero .container{position:relative;z-index:1;padding-bottom:60px}.project-hero h1{font-family:Georgia,serif;font-size:clamp(3rem,7vw,6.8rem);font-weight:400;margin:10px 0}.project-copy{display:grid;grid-template-columns:1fr 1fr;gap:70px}.project-copy p{line-height:1.8;color:var(--muted)}.back{display:inline-block;margin-bottom:25px;color:var(--bronze)}
@media(max-width:900px){.nav{display:none}.grid{grid-template-columns:1fr 1fr}.stats,.steps{grid-template-columns:1fr 1fr}.project-copy{grid-template-columns:1fr}.hero h1{font-size:clamp(3rem,13vw,5rem)}}
@media(max-width:600px){.container{width:min(100% - 28px,1180px)}.header{padding:15px}.grid{grid-template-columns:1fr}.stats,.steps{grid-template-columns:1fr}.stat{border-right:0;border-bottom:1px solid var(--line)}.section{padding:75px 0}.cta{display:block}}

/* Sprint Premium */
body{overflow-x:hidden}.header{transition:background .35s ease,color .35s ease,padding .35s ease,box-shadow .35s ease}.header.is-scrolled{padding:14px 28px;background:rgba(243,240,233,.94);color:var(--ink);box-shadow:0 10px 35px rgba(15,18,22,.1);backdrop-filter:blur(14px)}.header.is-scrolled .mark{border-color:rgba(23,25,29,.35)}.header.is-scrolled .nav a:hover{color:var(--bronze)}
.nav a{position:relative}.nav a:after{content:"";position:absolute;left:0;right:100%;bottom:-7px;height:1px;background:var(--bronze);transition:right .28s ease}.nav a:hover:after{right:0}
.hero{overflow:hidden}.hero:before{content:"";position:absolute;inset:-3%;background:url('../images/hero/hero-cathedrale-tournai.jpg') center/cover no-repeat;animation:heroDrift 18s ease-in-out infinite alternate;will-change:transform}.hero{background:none}.hero:after{z-index:0}.hero-inner>*{opacity:0;transform:translateY(24px);animation:heroReveal .8s cubic-bezier(.2,.7,.2,1) forwards}.hero-inner .eyebrow{animation-delay:.15s}.hero-inner h1{animation-delay:.3s}.hero-inner p{animation-delay:.46s}.hero-inner .button{animation-delay:.62s}
@keyframes heroDrift{from{transform:scale(1.02) translate3d(0,0,0)}to{transform:scale(1.09) translate3d(-1.2%,.8%,0)}}@keyframes heroReveal{to{opacity:1;transform:none}}
.button{position:relative;overflow:hidden}.button:before{content:"";position:absolute;inset:0;background:var(--bronze);transform:translateX(-102%);transition:transform .35s ease;z-index:-1}.button:hover:before{transform:none}.button:hover{background:transparent}
.scroll-cue{position:absolute;z-index:2;right:32px;bottom:28px;display:flex;align-items:center;gap:13px;color:rgba(255,255,255,.72);font-size:.67rem;letter-spacing:.17em;text-transform:uppercase}.scroll-cue i{display:block;width:1px;height:48px;background:rgba(255,255,255,.25);position:relative;overflow:hidden}.scroll-cue i:after{content:"";position:absolute;left:0;top:-20px;width:1px;height:20px;background:#fff;animation:scrollLine 1.8s ease-in-out infinite}@keyframes scrollLine{to{transform:translateY(70px)}}
.reveal{opacity:0;transform:translateY(45px);transition:opacity .9s ease,transform .9s cubic-bezier(.2,.7,.2,1)}.reveal.is-visible{opacity:1;transform:none}.card{opacity:0;transform:translateY(28px)}.reveal.is-visible .card{animation:cardIn .65s ease forwards}.reveal.is-visible .card:nth-child(2){animation-delay:.06s}.reveal.is-visible .card:nth-child(3){animation-delay:.12s}.reveal.is-visible .card:nth-child(4){animation-delay:.18s}.reveal.is-visible .card:nth-child(5){animation-delay:.24s}.reveal.is-visible .card:nth-child(6){animation-delay:.3s}@keyframes cardIn{to{opacity:1;transform:none}}
.card{border:0;box-shadow:0 0 0 1px var(--line)}.card-body{transition:background .3s ease}.card:hover .card-body{background:#fbfaf7}.card:hover h3{color:#7e5c35}.explore{position:relative}.explore:after{content:"";position:absolute;left:0;right:100%;bottom:-5px;height:1px;background:var(--bronze);transition:right .3s ease}.card:hover .explore:after{right:0}
.menu-toggle{display:none;border:0;background:transparent;width:42px;height:42px;padding:10px;cursor:pointer}.menu-toggle span{display:block;height:1px;background:currentColor;margin:7px 0;transition:.3s}.menu-toggle.is-open span:first-child{transform:translateY(4px) rotate(45deg)}.menu-toggle.is-open span:last-child{transform:translateY(-4px) rotate(-45deg)}
@media(max-width:900px){.menu-toggle{display:block;color:inherit}.nav{display:flex;position:fixed;inset:72px 18px auto 18px;flex-direction:column;gap:0;padding:18px;background:rgba(243,240,233,.98);color:var(--ink);box-shadow:0 18px 55px rgba(15,18,22,.18);opacity:0;transform:translateY(-12px);pointer-events:none;transition:.25s}.nav.is-open{opacity:1;transform:none;pointer-events:auto}.nav a{padding:14px 8px;border-bottom:1px solid var(--line)}.scroll-cue{display:none}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition:none!important;scroll-behavior:auto!important}.reveal,.card,.hero-inner>*{opacity:1;transform:none}}