:root{
  --bg:#09090b;
  --bg-2:#0e0e11;
  --line:#1f1f24;
  --line-2:#2a2a31;
  --fg:#e7e7ea;
  --fg-2:#a1a1aa;
  --fg-3:#71717a;
  --accent:#00e5a0;
  --max:1240px;
  --pad: clamp(20px, 4vw, 56px);
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: 'IBM Plex Sans', system-ui, -apple-system, sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{background:var(--bg);color:var(--fg);font-family:var(--sans);font-weight:300;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.55}
html{scroll-behavior:smooth}
body{overflow-x:hidden;min-height:100vh}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img,svg{display:block;max-width:100%}

::selection{background:var(--accent);color:#000}

#grid{position:fixed;inset:0;width:100%;height:100%;z-index:-1;opacity:.55;pointer-events:none}

/* NAV */
.nav{
  position:sticky;top:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding: 18px var(--pad);
  background:rgba(9,9,11,0);
  backdrop-filter:blur(0px);
  transition:background .25s ease, backdrop-filter .25s ease, border-color .25s ease;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(9,9,11,.72);
  backdrop-filter:blur(14px);
  border-bottom-color:var(--line);
}
.brand{
  font-family:var(--mono);font-weight:500;letter-spacing:.18em;font-size:13px;
}
.links{display:flex;gap:28px}
.links a{font-size:13px;color:var(--fg-2);transition:color .15s ease;font-weight:400}
.links a:hover{color:var(--fg)}
.lang{
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;
  color:var(--fg-2);
  border:1px solid var(--line);padding:6px 10px;border-radius:2px;
  display:inline-flex;gap:6px;align-items:center;
}
.lang:hover{border-color:var(--line-2);color:var(--fg)}
.lang .lang-sep{color:var(--fg-3)}
.lang [data-active="true"]{color:var(--accent)}

@media (max-width:760px){
  .links{display:none}
}

/* HERO */
.hero{
  min-height: calc(100vh - 64px);
  padding: clamp(60px, 10vh, 140px) var(--pad) 80px;
  display:flex;flex-direction:column;justify-content:center;
  position:relative;
  border-bottom:1px solid var(--line);
  max-width:var(--max);margin:0 auto;width:100%;
}
.hero-meta{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;color:var(--fg-2);
  margin-bottom:48px;letter-spacing:.05em;
}
.dot{
  width:7px;height:7px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 0 rgba(0,229,160,.5);
  animation:pulse 2.4s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(0,229,160,.5)}
  70%{box-shadow:0 0 0 10px rgba(0,229,160,0)}
  100%{box-shadow:0 0 0 0 rgba(0,229,160,0)}
}
.hero-title{
  font-size: clamp(40px, 7.2vw, 96px);
  line-height:1.02;
  letter-spacing:-.025em;
  font-weight:500;
  max-width:14ch;
}
.hero-title .line{display:block;opacity:0;transform:translateY(14px);animation:rise .9s cubic-bezier(.2,.7,.2,1) forwards}
.hero-title .line:nth-child(1){animation-delay:.15s}
.hero-title .line:nth-child(2){animation-delay:.32s;color:var(--fg-2)}
@keyframes rise{to{opacity:1;transform:none}}

.hero-sub{
  margin-top:32px;
  max-width:58ch;
  color:var(--fg-2);
  font-size: clamp(16px, 1.6vw, 19px);
  font-weight:300;
  opacity:0;animation:rise .9s cubic-bezier(.2,.7,.2,1) .55s forwards;
}
.hero-cta{
  margin-top:48px;display:flex;gap:18px;flex-wrap:wrap;
  opacity:0;animation:rise .9s cubic-bezier(.2,.7,.2,1) .75s forwards;
}
.btn{
  background:var(--accent);color:#000;
  padding:14px 22px;border-radius:2px;font-weight:500;font-size:14px;
  display:inline-flex;align-items:center;gap:10px;
  transition:transform .15s ease, background .15s ease;
}
.btn:hover{background:#1aedaa;transform:translateY(-1px)}
.btn-ghost{
  padding:14px 0;color:var(--fg-2);font-size:14px;font-family:var(--mono);
  border-bottom:1px solid var(--line-2);
  transition:color .15s ease, border-color .15s ease;
}
.btn-ghost:hover{color:var(--fg);border-color:var(--fg)}

.hero-foot{
  position:absolute;left:var(--pad);right:var(--pad);bottom:32px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  font-family:var(--mono);font-size:11px;color:var(--fg-3);letter-spacing:.08em;
  border-top:1px solid var(--line);padding-top:18px;
  opacity:0;animation:rise .9s cubic-bezier(.2,.7,.2,1) 1s forwards;
}
.hero-foot .k{color:var(--fg-2);margin-right:8px}
@media (max-width:640px){.hero-foot{grid-template-columns:repeat(2,1fr);gap:10px 16px}}

/* SECTIONS */
.section{
  padding: clamp(80px, 12vh, 140px) var(--pad);
  max-width:var(--max);margin:0 auto;
  border-bottom:1px solid var(--line);
}
.section-head{margin-bottom:64px;max-width:60ch}
.eyebrow{
  display:inline-block;font-family:var(--mono);font-size:11px;color:var(--accent);
  letter-spacing:.18em;margin-bottom:18px;
}
.section h2{
  font-size: clamp(32px, 4.6vw, 56px);
  font-weight:500;letter-spacing:-.02em;line-height:1.05;
}
.section-lede{margin-top:18px;color:var(--fg-2);max-width:54ch;font-size:17px}

/* GRID 4 */
.grid-4{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}
@media (max-width:1024px){.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:560px){.grid-4{grid-template-columns:1fr}}

.card{
  background:var(--bg);
  padding:36px 30px 32px;
  position:relative;
  transition:background .2s ease;
  display:flex;flex-direction:column;
}
.card:hover{background:var(--bg-2)}
.card-num{
  position:absolute;top:18px;right:22px;
  font-family:var(--mono);font-size:11px;color:var(--fg-3);letter-spacing:.1em;
}
.ico{width:32px;height:32px;color:var(--accent);margin-bottom:32px}
.card h3{font-size:18px;font-weight:500;margin-bottom:12px;letter-spacing:-.01em}
.card p{color:var(--fg-2);font-size:14.5px;line-height:1.6}
.tags{margin-top:24px;display:flex;flex-wrap:wrap;gap:6px}
.tags span{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;
  padding:4px 8px;border:1px solid var(--line-2);color:var(--fg-3);border-radius:2px;
}

/* POSTS */
.posts{display:flex;flex-direction:column}
.post{
  display:grid;
  grid-template-columns: 220px 1fr auto;
  gap:48px;align-items:center;
  padding:32px 0;
  border-top:1px solid var(--line);
  transition:padding-left .25s ease;
}
.posts .post:last-child{border-bottom:1px solid var(--line)}
.post:hover{padding-left:12px}
.post:hover h3{color:var(--accent)}
.post-meta{
  display:flex;flex-direction:column;gap:6px;
  font-family:var(--mono);font-size:11.5px;color:var(--fg-3);letter-spacing:.08em;
}
.post .tag{color:var(--fg-2)}
.post h3{
  font-size: clamp(20px, 2.2vw, 26px);
  font-weight:400;letter-spacing:-.015em;line-height:1.25;color:var(--fg);
  transition:color .2s ease;
}
.post p{color:var(--fg-2);margin-top:8px;font-size:14.5px;max-width:64ch}
.post-cta{font-family:var(--mono);font-size:12px;color:var(--fg-2);letter-spacing:.05em;white-space:nowrap}
@media (max-width:820px){
  .post{grid-template-columns:1fr;gap:14px;padding:28px 0}
  .post-cta{justify-self:start}
}

/* ABOUT */
.about-grid{
  display:grid;grid-template-columns:1.5fr 1fr;gap:80px;align-items:start;
}
.about-text{
  font-size: clamp(18px, 2.1vw, 24px);
  line-height:1.5;color:var(--fg);font-weight:300;letter-spacing:-.005em;
  max-width:48ch;
}
.facts{list-style:none;display:flex;flex-direction:column;gap:14px;border-left:1px solid var(--line);padding-left:24px}
.facts li{display:flex;align-items:center;gap:14px;font-family:var(--mono);font-size:13px;color:var(--fg-2)}
.facts .k{color:var(--fg-3);font-size:11px;letter-spacing:.12em;width:36px}
@media (max-width:820px){.about-grid{grid-template-columns:1fr;gap:48px}}

/* CONTACT */
.contact{text-align:left}
.mail{
  display:inline-block;
  font-size: clamp(28px, 5vw, 56px);
  font-weight:500;letter-spacing:-.02em;
  border-bottom:1px solid var(--line-2);padding-bottom:8px;margin-top:32px;
  transition:color .2s ease, border-color .2s ease;
}
.mail:hover{color:var(--accent);border-color:var(--accent)}
.contact-foot{margin-top:24px;font-family:var(--mono);font-size:12px;color:var(--fg-3);letter-spacing:.08em}

/* FOOTER */
.footer{
  padding:32px var(--pad);
  max-width:var(--max);margin:0 auto;
}
.footer-row{
  display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap;
  font-family:var(--mono);font-size:11.5px;color:var(--fg-3);letter-spacing:.05em;
}
.footer-links{display:flex;gap:24px}
.footer-links a:hover{color:var(--fg)}

/* REVEAL */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .8s ease, transform .8s ease}
.reveal.in{opacity:1;transform:none}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
  .reveal{opacity:1;transform:none}
}

/* ===== ARTICLE PAGE ===== */
html[lang="en"] .lang-fr,
html[lang="fr"] .lang-en { display:none !important; }

.article{
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(40px, 8vh, 80px) var(--pad) 120px;
}
.article .back{
  display:inline-block;font-family:var(--mono);font-size:12px;
  color:var(--fg-2);letter-spacing:.08em;margin-bottom:56px;
  transition:color .15s ease;
}
.article .back:hover{color:var(--accent)}

.article-head{margin-bottom:56px;padding-bottom:40px;border-bottom:1px solid var(--line)}
.article-meta{
  display:flex;gap:18px;align-items:center;
  font-family:var(--mono);font-size:11.5px;color:var(--fg-3);
  letter-spacing:.08em;margin-bottom:28px;
}
.article-meta .tag{color:var(--accent)}
.article-meta .sep{color:var(--line-2)}
.article h1{
  font-size: clamp(32px, 4.4vw, 52px);
  font-weight:500;letter-spacing:-.02em;line-height:1.1;
  margin-bottom:22px;
}
.article .lede{
  color:var(--fg-2);font-size: clamp(18px, 2vw, 21px);
  line-height:1.55;max-width:56ch;
}

.article-body{font-size:17px;line-height:1.75;color:var(--fg)}
.article-body > *+*{margin-top:1.4em}
.article-body h2{
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight:500;letter-spacing:-.01em;line-height:1.3;
  margin-top:2.6em;margin-bottom:.2em;
}
.article-body h3{
  font-size:18px;font-weight:500;letter-spacing:-.005em;
  margin-top:1.8em;color:var(--fg);
}
.article-body p{color:var(--fg)}
.article-body p.muted{color:var(--fg-2)}
.article-body strong{color:var(--fg);font-weight:500}
.article-body em{color:var(--accent);font-style:normal;font-family:var(--mono);font-size:.92em}
.article-body ul,.article-body ol{padding-left:22px;color:var(--fg)}
.article-body li{margin-top:.4em}
.article-body li::marker{color:var(--fg-3)}
.article-body blockquote{
  border-left:2px solid var(--accent);padding:6px 0 6px 24px;
  color:var(--fg-2);font-style:italic;
}
.article-body code{
  font-family:var(--mono);font-size:.9em;
  background:var(--bg-2);border:1px solid var(--line);
  padding:1px 6px;border-radius:2px;color:var(--fg);
}
.article-body hr{
  border:0;border-top:1px solid var(--line);
  margin:3em 0;
}
.article-body .callout{
  border:1px solid var(--line);padding:20px 22px;
  background:var(--bg-2);
  font-family:var(--mono);font-size:13px;color:var(--fg-2);line-height:1.65;
}
.article-body .callout .k{color:var(--accent);font-size:11px;letter-spacing:.12em;display:block;margin-bottom:6px}

.article-nav{
  margin-top:80px;padding-top:40px;border-top:1px solid var(--line);
  display:grid;grid-template-columns:1fr 1fr;gap:24px;
}
.article-nav a{
  display:block;padding:20px 22px;border:1px solid var(--line);
  transition:border-color .2s ease, background .2s ease;
}
.article-nav a:hover{border-color:var(--line-2);background:var(--bg-2)}
.article-nav .dir{font-family:var(--mono);font-size:11px;color:var(--fg-3);letter-spacing:.1em;margin-bottom:8px;display:block}
.article-nav .t{font-size:15px;color:var(--fg);line-height:1.4}
.article-nav .next{text-align:right}
@media (max-width:640px){.article-nav{grid-template-columns:1fr}.article-nav .next{text-align:left}}