:root {
  --paper: #f4f1ec;
  --paper-2: #ebe6de;
  --ink: #171614;
  --muted: #6b665e;
  --line: rgba(23, 22, 20, .14);
  --clay: #a4552f;
  --serif: 'Fraunces', Georgia, serif;
  --sans: Manrope, system-ui, sans-serif;
  --pad: clamp(1rem, 5vw, 5rem);
}
* { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; }
body { background: var(--paper); color: var(--ink); font: 400 16px/1.65 var(--sans); overflow-x: hidden; -webkit-font-smoothing: antialiased; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--clay); outline-offset: 3px; }
::selection { background: var(--ink); color: var(--paper); }
h1, h2, h3 { text-wrap: balance; font-family: var(--serif); font-weight: 300; letter-spacing: -.02em; line-height: 1.02; }
em { font-style: italic; color: var(--clay); }
.eyebrow { font-size: .75rem; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); margin-bottom: 1.4rem; }

.progress { position: fixed; inset: 0 0 auto; z-index: 60; height: 2px; background: var(--ink); transform-origin: left; scale: var(--progress, 0) 1; }

/* Buttons and links */
.btn {
  display: inline-flex; align-items: center; gap: .7rem; padding: .8rem 1.4rem; border: 1px solid var(--ink); border-radius: 999px;
  font-size: .9rem; font-weight: 500; position: relative; overflow: hidden; isolation: isolate;
}
.btn::before { content: ''; position: absolute; inset: 0; z-index: -1; background: var(--ink); translate: 0 101%; transition: translate .5s var(--ease); }
.btn:hover { color: var(--paper); }
.btn:hover::before { translate: 0 0; }
.btn-dark { background: var(--ink); color: var(--paper); }
.btn-dark::before { background: var(--clay); }
.arrow { display: inline-block; transition: translate .4s var(--ease); }
.btn:hover .arrow { translate: 4px 0; }
.text-link { position: relative; font-size: .92rem; font-weight: 500; }
.text-link::after { content: ''; position: absolute; left: 0; right: 0; bottom: -3px; height: 1px; background: currentColor; transform-origin: right; scale: 0 1; transition: scale .5s var(--ease); }
.text-link:hover::after { transform-origin: left; scale: 1 1; }

/* Nav */
.nav {
  position: fixed; inset: 0 0 auto; z-index: 50; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 1.3rem var(--pad); transition: background .4s, padding .4s var(--ease), border-color .4s; border-bottom: 1px solid transparent;
}
.nav.scrolled { background: var(--paper); padding-block: .8rem; border-color: var(--line); }
.logo { font-family: var(--serif); font-size: 1.35rem; letter-spacing: -.02em; }
.logo span { font-style: italic; margin-left: .25rem; color: var(--clay); }
.nav nav { display: flex; gap: 2.2rem; font-size: .9rem; }
.nav nav a { position: relative; }
.nav nav a::after { content: ''; position: absolute; left: 0; right: 0; bottom: -3px; height: 1px; background: currentColor; transform-origin: right; scale: 0 1; transition: scale .5s var(--ease); }
.nav nav a:hover::after { transform-origin: left; scale: 1 1; }

/* Hero */
.hero { display: grid; grid-template-columns: 1fr 1.1fr; gap: 3rem 4rem; align-items: center; min-height: 100vh; padding: 8rem var(--pad) 3rem; }
.hero h1 { font-size: clamp(3.4rem, 9vw, 8rem); margin-bottom: 1.8rem; }
.lead { max-width: 30rem; font-size: 1.1rem; color: var(--muted); margin-bottom: 2.4rem; }
.hero-cta { display: flex; align-items: center; gap: 2rem; flex-wrap: wrap; }
.hero-art { position: relative; aspect-ratio: 4 / 3; background: var(--paper-2); border-radius: 4px; overflow: hidden; }
.hero-art svg { width: 100%; height: 100%; }
.hero-art figcaption { position: absolute; left: 1.2rem; bottom: 1rem; font-size: .78rem; color: var(--muted); }
.facts { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); list-style: none; padding: 2rem 0 0; border-top: 1px solid var(--line); font-size: .88rem; color: var(--muted); }
.facts b { display: block; font-family: var(--serif); font-weight: 300; font-size: 2.2rem; color: var(--ink); line-height: 1.1; }

/* Dessins */
.drawing, .frame svg { fill: none; stroke: var(--ink); stroke-width: 1.2; stroke-linecap: round; stroke-linejoin: round; }
.plane { fill: var(--clay); stroke: none; opacity: 0; transition: opacity 1.4s var(--ease) 1.2s; }
.plane.soft { fill: var(--ink); }
.glass { fill: #fff; stroke: none; opacity: 0; transition: opacity 1.4s var(--ease) 1.4s; }
.in .plane { opacity: .16; }
.in .plane.soft { opacity: .06; }
.in .glass { opacity: .7; }

/* Bandeau */
.marquee { overflow: hidden; border-block: 1px solid var(--line); padding: 1.3rem 0; }
.track { display: flex; width: max-content; animation: scroll 40s linear infinite; }
.track span { font-family: var(--serif); font-size: clamp(1.6rem, 3.5vw, 2.6rem); font-weight: 300; padding-right: 3rem; white-space: nowrap; }
.track span::after { content: '✳'; margin-left: 3rem; font-size: .6em; color: var(--clay); vertical-align: middle; }
@keyframes scroll { to { transform: translateX(-50%); } }

/* Sections */
.section { padding: 8rem var(--pad); }
.head { max-width: 900px; margin-bottom: 4rem; }
.head h2 { font-size: clamp(2.4rem, 6vw, 5rem); }

/* Projets */
.projects { display: grid; grid-template-columns: repeat(12, 1fr); gap: 4rem 2rem; }
.project { grid-column: span 5; display: block; }
.project.p-wide { grid-column: span 7; }
.project:nth-child(4n + 2), .project:nth-child(4n + 3) { margin-top: 5rem; }
.frame { position: relative; overflow: hidden; aspect-ratio: 4 / 3; background: var(--tone, var(--paper-2)); border-radius: 4px; }
.frame svg, .frame img { width: 100%; height: 100%; object-fit: cover; transition: scale 1.2s var(--ease); }
.project:hover .frame svg, .project:hover .frame img { scale: 1.05; }
.view {
  position: absolute; left: 50%; top: 50%; translate: -50% -50%; scale: .6; opacity: 0; display: grid; place-items: center;
  width: 104px; height: 104px; border-radius: 50%; background: var(--ink); color: var(--paper); font-size: .78rem; font-weight: 500; text-align: center;
  transition: scale .5s var(--ease), opacity .4s;
}
.project:hover .view { scale: 1; opacity: 1; }
.meta { display: grid; grid-template-columns: 1fr auto; align-items: baseline; padding-top: 1rem; }
.meta h3 { font-size: 1.6rem; }
.meta p { grid-column: 1; color: var(--muted); font-size: .88rem; }
.meta span { grid-row: 1; grid-column: 2; font-size: .85rem; color: var(--muted); }

/* Studio */
.studio { background: var(--ink); color: var(--paper); }
.studio .eyebrow { color: #a29c92; }
.manifesto { font-family: var(--serif); font-weight: 300; font-size: clamp(1.8rem, 4vw, 3.4rem); line-height: 1.2; letter-spacing: -.02em; max-width: 1100px; }
.manifesto span { opacity: .18; transition: opacity .4s; }
.manifesto span.lit { opacity: 1; }
.studio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; margin-top: 6rem; padding-top: 2.5rem; border-top: 1px solid rgba(244, 241, 236, .15); }
.studio-grid strong { display: block; font-family: var(--serif); font-weight: 300; font-size: clamp(3rem, 6vw, 5rem); line-height: 1; }
.studio-grid span { color: #a29c92; font-size: .9rem; }

/* Process */
.process { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.process li { padding: 2rem 1.6rem 2.4rem; border: 1px solid var(--line); border-radius: 4px; transition: background .5s var(--ease), color .5s, translate .5s var(--ease); }
.process li:hover { background: var(--ink); color: var(--paper); translate: 0 -6px; }
.process li:hover p { color: #bdb6ab; }
.process span { font-size: .8rem; color: var(--clay); }
.process h3 { font-size: 2rem; margin: 2.5rem 0 .8rem; }
.process p { color: var(--muted); font-size: .93rem; transition: color .5s; }

/* Services */
.head.left { margin-bottom: 2rem; }
.service-list { list-style: none; padding: 0; border-top: 1px solid var(--line); }
.service-list li { border-bottom: 1px solid var(--line); }
.service-list a {
  position: relative; display: grid; grid-template-columns: 4rem 1.2fr 1fr 3rem; align-items: center; gap: 1rem; padding: 2rem 0; overflow: hidden; isolation: isolate;
  transition: color .5s, padding .5s var(--ease);
}
.service-list a::before { content: ''; position: absolute; inset: 0; z-index: -1; background: var(--clay); transform-origin: bottom; scale: 1 0; transition: scale .5s var(--ease); }
.service-list a:hover { color: var(--paper); padding-inline: 1.5rem; }
.service-list a:hover::before { scale: 1 1; }
.service-list .n { font-size: .8rem; }
.service-list .t { font-family: var(--serif); font-weight: 300; font-size: clamp(1.8rem, 4vw, 3rem); line-height: 1; }
.service-list .d { color: var(--muted); font-size: .93rem; transition: color .5s; }
.service-list a:hover .d { color: rgba(244, 241, 236, .85); }
.service-list .arrow { justify-self: end; font-size: 1.4rem; transition: rotate .5s var(--ease); rotate: -45deg; }
.service-list a:hover .arrow { rotate: 0deg; }

/* Testimonial */
.testimonial { text-align: center; }
.testimonial blockquote { font-family: var(--serif); font-weight: 300; font-size: clamp(1.8rem, 4.2vw, 3.4rem); line-height: 1.2; max-width: 1000px; margin: 0 auto 2rem; }
.testimonial p { color: var(--muted); font-size: .9rem; }
.testimonial b { color: var(--ink); font-weight: 600; }

/* Contact */
.contact { padding: 8rem var(--pad) 6rem; background: var(--paper-2); }
.contact h2 { font-size: clamp(3rem, 9vw, 8rem); margin-bottom: 3rem; }
.big-mail { position: relative; display: inline-block; font-family: var(--serif); font-size: clamp(1.4rem, 3.5vw, 2.6rem); font-weight: 300; }
.big-mail::after { content: ''; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: var(--ink); transform-origin: right; transition: scale .6s var(--ease); }
.big-mail:hover::after { transform-origin: left; animation: redraw .8s var(--ease); }
@keyframes redraw { 0% { scale: 1 1; transform-origin: right; } 49% { scale: 0 1; transform-origin: right; } 50% { transform-origin: left; } 100% { scale: 1 1; transform-origin: left; } }
.offices { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; margin-top: 5rem; padding-top: 2rem; border-top: 1px solid var(--line); }
.offices h3 { font-size: 1.4rem; margin-bottom: .6rem; }
.offices p { color: var(--muted); font-size: .92rem; }
.offices a:hover { color: var(--ink); }

.footer { display: flex; justify-content: space-between; padding: 2rem var(--pad); font-size: .85rem; color: var(--muted); border-top: 1px solid var(--line); background: var(--paper-2); }

@media (max-width: 900px) {
  .nav nav { display: none; }
  .hero { grid-template-columns: 1fr; padding-top: 7rem; }
  .projects { grid-template-columns: 1fr; gap: 3rem; }
  .project, .project.p-wide { grid-column: auto; margin-top: 0 !important; }
  .process, .studio-grid, .offices { grid-template-columns: 1fr 1fr; }
  .service-list a { grid-template-columns: 2.5rem 1fr 2rem; }
  .service-list .d { display: none; }
}
@media (max-width: 560px) {
  .nav .btn { display: none; }
  .facts, .process, .studio-grid, .offices { grid-template-columns: 1fr; }
}