/* Polices hébergées localement (Inter, Orbitron — SIL OFL) */
@font-face{font-family:'Inter';font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/inter-latin-ext-400-normal.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Inter';font-style:normal;font-weight:400;font-display:swap;src:url(/assets/fonts/inter-latin-400-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Inter';font-style:normal;font-weight:500;font-display:swap;src:url(/assets/fonts/inter-latin-ext-500-normal.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Inter';font-style:normal;font-weight:500;font-display:swap;src:url(/assets/fonts/inter-latin-500-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Inter';font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/inter-latin-ext-600-normal.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Inter';font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/inter-latin-600-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Inter';font-style:normal;font-weight:700;font-display:swap;src:url(/assets/fonts/inter-latin-ext-700-normal.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Inter';font-style:normal;font-weight:700;font-display:swap;src:url(/assets/fonts/inter-latin-700-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Inter';font-style:normal;font-weight:800;font-display:swap;src:url(/assets/fonts/inter-latin-ext-800-normal.woff2) format('woff2');unicode-range:U+0100-02BA,U+02BD-02C5,U+02C7-02CC,U+02CE-02D7,U+02DD-02FF,U+0304,U+0308,U+0329,U+1D00-1DBF,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF}
@font-face{font-family:'Inter';font-style:normal;font-weight:800;font-display:swap;src:url(/assets/fonts/inter-latin-800-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Orbitron';font-style:normal;font-weight:600;font-display:swap;src:url(/assets/fonts/orbitron-latin-600-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Orbitron';font-style:normal;font-weight:700;font-display:swap;src:url(/assets/fonts/orbitron-latin-700-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Orbitron';font-style:normal;font-weight:800;font-display:swap;src:url(/assets/fonts/orbitron-latin-800-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:'Orbitron';font-style:normal;font-weight:900;font-display:swap;src:url(/assets/fonts/orbitron-latin-900-normal.woff2) format('woff2');unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
/* 2048 DELUXE — ULTIM8 Games by Oceanide */
:root{
  --bg:#04060b;
  --bg-2:#070b14;
  --panel:#0b1220;
  --panel-2:#0f1830;
  --line:rgba(120,170,255,.16);
  --line-2:rgba(120,170,255,.32);
  --text:#e8f0ff;
  --muted:#9db0d3;
  --dim:#6a7da3;
  --blue:#0789ff;
  --cyan:#39caff;
  --orange:#ff9a1f;
  --gold:#ffb53e;
  --silver:#cfd8e6;
  --grad:linear-gradient(100deg,#0789ff 0%,#39caff 45%,#ffb53e 100%);
  --radius:22px;
  --maxw:1200px;
  --display:"Orbitron",system-ui,sans-serif;
  --body:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--body);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--cyan);text-decoration:none}
a:hover{color:#fff}
::selection{background:rgba(57,202,255,.35)}

/* ambient background */
.bg-fx{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:
   radial-gradient(900px 600px at 12% -10%,rgba(7,137,255,.22),transparent 60%),
   radial-gradient(800px 600px at 100% 10%,rgba(255,154,31,.13),transparent 60%),
   radial-gradient(1000px 700px at 50% 120%,rgba(57,202,255,.10),transparent 60%),
   var(--bg)}
.bg-fx::after{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(120,170,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,255,.05) 1px,transparent 1px);
  background-size:56px 56px;mask-image:radial-gradient(ellipse at 50% 0%,#000 20%,transparent 75%)}

.wrap{width:min(100% - 32px,var(--maxw));margin-inline:auto}

/* header */
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);background:rgba(4,6,11,.72);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:70px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);font-family:var(--display);font-weight:800;letter-spacing:.06em;font-size:18px}
.brand-mark{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;font-size:12px;font-weight:900;color:#04060b;background:var(--grad);box-shadow:0 0 22px rgba(57,202,255,.45)}
.brand small{display:block;font-family:var(--body);font-weight:600;font-size:10px;letter-spacing:.24em;color:var(--dim)}
.nav{display:flex;align-items:center;gap:6px}
.nav a{color:var(--muted);font-weight:600;font-size:15px;padding:8px 14px;border-radius:999px}
.nav a:hover,.nav a[aria-current="page"]{color:#fff;background:rgba(120,170,255,.08)}
.nav-toggle{display:none;background:none;border:1px solid var(--line-2);color:var(--text);border-radius:10px;width:42px;height:42px;font-size:20px;cursor:pointer}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:15px 28px;border-radius:999px;font-weight:800;font-size:16px;letter-spacing:.02em;border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s;white-space:nowrap}
.btn-play{color:#04060b;background:var(--grad);box-shadow:0 10px 40px rgba(7,137,255,.35),0 0 0 1px rgba(255,255,255,.12) inset}
.btn-play:hover{color:#04060b;transform:translateY(-2px);box-shadow:0 16px 50px rgba(57,202,255,.45),0 0 30px rgba(255,181,62,.35)}
.btn-ghost{color:var(--text);border-color:var(--line-2);background:rgba(15,24,48,.5)}
.btn-ghost:hover{border-color:var(--cyan);color:#fff}
.btn-sm{padding:10px 18px;font-size:14px}
.btn svg{width:20px;height:20px}

/* hero */
.hero{padding:88px 0 70px;position:relative}
.hero .wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:.26em;text-transform:uppercase;color:var(--cyan);padding:8px 14px;border:1px solid var(--line-2);border-radius:999px;background:rgba(7,137,255,.08)}
.eyebrow::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold)}
h1,h2,h3{font-family:var(--display);line-height:1.12;letter-spacing:.01em;margin:0}
.hero h1{font-size:clamp(44px,7vw,92px);font-weight:900;margin:22px 0 10px}
.metal{background:linear-gradient(180deg,#ffffff 0%,#cfd8e6 45%,#8a96aa 55%,#e9eef6 100%);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 2px 0 rgba(0,0,0,.4))}
.fire{background:linear-gradient(100deg,#39caff 0%,#0789ff 30%,#ffb53e 75%,#ff7a00 100%);-webkit-background-clip:text;background-clip:text;color:transparent;filter:drop-shadow(0 0 24px rgba(57,202,255,.35))}
.lead{font-size:clamp(17px,1.6vw,20px);color:var(--muted);max-width:560px;margin:18px 0 32px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.device-hint{display:block;margin-top:22px;font-size:14px;color:var(--dim)}
.device-hint b{color:var(--silver)}
.stats{display:flex;gap:34px;margin-top:40px;flex-wrap:wrap}
.stats div{font-family:var(--display);font-size:30px;font-weight:800}
.stats span{display:block;font-family:var(--body);font-size:12px;font-weight:600;letter-spacing:.18em;text-transform:uppercase;color:var(--dim)}

/* board */
.board-stage{perspective:1400px;display:grid;place-items:center}
.board{--gap:10px;width:min(100%,500px);aspect-ratio:1;padding:var(--gap);display:grid;grid-template-columns:repeat(5,1fr);gap:var(--gap);border-radius:26px;
  background:linear-gradient(160deg,#121c33,#070b14);border:1px solid var(--line-2);
  box-shadow:0 40px 90px rgba(0,0,0,.65),0 0 0 1px rgba(255,255,255,.04) inset,0 0 80px rgba(7,137,255,.18);
  transform:rotateX(14deg) rotateY(-14deg) rotateZ(2deg);transition:transform .6s ease;position:relative}
.board:hover{transform:rotateX(6deg) rotateY(-6deg)}
.board::after{content:"";position:absolute;inset:-2px;border-radius:28px;padding:2px;background:var(--grad);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:.55;pointer-events:none}
.cell{border-radius:12px;background:rgba(120,170,255,.06);box-shadow:inset 0 2px 6px rgba(0,0,0,.5)}
.tile{border-radius:12px;display:grid;place-items:center;font-family:var(--display);font-weight:900;font-size:clamp(14px,2.4vw,26px);color:#fff;text-shadow:0 2px 6px rgba(0,0,0,.45);transition:transform .18s ease,background .3s}
.tile.pop{animation:pop .35s ease}
@keyframes pop{0%{transform:scale(.6)}60%{transform:scale(1.12)}100%{transform:scale(1)}}
.t2{background:linear-gradient(160deg,#1d2c4f,#14203c);color:#cfe0ff}
.t4{background:linear-gradient(160deg,#173f7a,#0f2c59)}
.t8{background:linear-gradient(160deg,#0f5fc4,#0a4592)}
.t16{background:linear-gradient(160deg,#0789ff,#0563c4);box-shadow:0 0 18px rgba(7,137,255,.45)}
.t32{background:linear-gradient(160deg,#39caff,#109ad6);box-shadow:0 0 20px rgba(57,202,255,.5)}
.t64{background:linear-gradient(160deg,#7fe0ff,#2bb4e8);color:#04223a;text-shadow:none}
.t128{background:linear-gradient(160deg,#dfe6f1,#9aa6ba);color:#1b2333;text-shadow:none}
.t256{background:linear-gradient(160deg,#ffd27a,#e59b2a);color:#2a1600;text-shadow:none}
.t512{background:linear-gradient(160deg,#ffb53e,#ff8a00);box-shadow:0 0 22px rgba(255,154,31,.55);color:#2a1100;text-shadow:none}
.t1024{background:linear-gradient(160deg,#ff9a1f,#ff5e00);box-shadow:0 0 26px rgba(255,122,0,.6);font-size:clamp(12px,2vw,20px)}
.t2048{background:linear-gradient(130deg,#0789ff,#39caff 40%,#ffb53e 75%,#ff7a00);box-shadow:0 0 34px rgba(255,181,62,.7),0 0 20px rgba(57,202,255,.6);font-size:clamp(12px,2vw,20px)}

/* sections */
section{padding:90px 0}
.section-head{max-width:720px;margin-bottom:46px}
.section-head.center{margin-inline:auto;text-align:center}
.kicker{font-size:12px;font-weight:800;letter-spacing:.3em;text-transform:uppercase;color:var(--gold);margin-bottom:14px}
.section-head h2{font-size:clamp(30px,4vw,48px);font-weight:800}
.section-head p{color:var(--muted);font-size:18px;margin:16px 0 0}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line-2),transparent);border:0;margin:0}

.grid{display:grid;gap:22px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

.card{position:relative;padding:30px;border-radius:var(--radius);background:linear-gradient(170deg,rgba(18,28,51,.85),rgba(8,12,22,.85));border:1px solid var(--line);overflow:hidden;transition:transform .25s,border-color .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:0 20px 50px rgba(0,0,0,.45),0 0 40px rgba(7,137,255,.12)}
.card h3{font-size:20px;margin:18px 0 10px}
.card p{color:var(--muted);margin:0;font-size:16px}
.icon{width:54px;height:54px;border-radius:16px;display:grid;place-items:center;font-family:var(--display);font-weight:900;font-size:16px;color:#fff;background:rgba(7,137,255,.14);border:1px solid var(--line-2)}
.icon svg{width:26px;height:26px}
.icon.o{background:rgba(255,154,31,.14);border-color:rgba(255,154,31,.35)}

/* gadgets */
.gadget{display:flex;gap:18px;align-items:flex-start;padding:24px;border-radius:18px;background:rgba(11,18,32,.7);border:1px solid var(--line)}
.gadget .icon{flex:none}
.gadget h3{font-size:17px;margin:2px 0 6px}
.gadget p{margin:0;color:var(--muted);font-size:15px}

/* levels */
.levels{display:flex;align-items:center;gap:6px;margin-top:10px}
.levels i{flex:1;height:12px;border-radius:999px;background:linear-gradient(90deg,#0789ff,#39caff)}
.levels i:nth-child(n+6){background:linear-gradient(90deg,#ffb53e,#ff7a00)}
.levels-legend{display:flex;justify-content:space-between;margin-top:10px;font-size:13px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--dim)}

/* split feature */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.list-check{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:14px}
.list-check li{display:flex;gap:12px;color:var(--muted)}
.list-check li::before{content:"";flex:none;width:22px;height:22px;margin-top:3px;border-radius:7px;background:var(--grad);-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M9 16.2 4.8 12l-1.4 1.4L9 19 21 7l-1.4-1.4z'/%3E%3C/svg%3E") center/18px no-repeat,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;border:1px solid var(--line-2)}
.list-check b{color:var(--text)}

.studio{border-radius:26px;overflow:hidden;border:1px solid var(--line-2);box-shadow:0 30px 80px rgba(0,0,0,.6),0 0 60px rgba(7,137,255,.15)}

/* platforms */
.platform{display:flex;flex-direction:column;gap:14px;padding:34px;border-radius:24px;background:linear-gradient(170deg,rgba(18,28,51,.9),rgba(8,12,22,.9));border:1px solid var(--line)}
.platform.active{border-color:var(--cyan);box-shadow:0 0 0 1px var(--cyan) inset,0 0 50px rgba(57,202,255,.2)}
.platform .tag{align-self:flex-start;font-size:11px;font-weight:800;letter-spacing:.2em;text-transform:uppercase;padding:6px 10px;border-radius:999px;background:rgba(57,202,255,.12);color:var(--cyan);visibility:hidden}
.platform.active .tag{visibility:visible}
.platform h3{font-size:24px}
.platform p{margin:0;color:var(--muted)}
.platform .btn{align-self:flex-start;margin-top:8px}

/* steps */
.steps{counter-reset:s}
.step{padding:28px;border-radius:20px;border:1px solid var(--line);background:rgba(11,18,32,.6)}
.step::before{counter-increment:s;content:"0" counter(s);display:block;font-family:var(--display);font-size:38px;font-weight:900;margin-bottom:8px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.step h3{font-size:18px;margin-bottom:8px}
.step p{margin:0;color:var(--muted);font-size:15px}

/* article cards */
.post-card{display:flex;flex-direction:column;border-radius:var(--radius);overflow:hidden;background:linear-gradient(170deg,rgba(18,28,51,.9),rgba(8,12,22,.9));border:1px solid var(--line);color:var(--text);transition:transform .25s,border-color .25s,box-shadow .25s}
.post-card:hover{color:var(--text);transform:translateY(-5px);border-color:var(--line-2);box-shadow:0 22px 60px rgba(0,0,0,.5),0 0 40px rgba(7,137,255,.14)}
.post-cover{aspect-ratio:16/9;position:relative;overflow:hidden;display:grid;place-items:center}
.post-cover .num{font-family:var(--display);font-weight:900;font-size:64px;position:relative;z-index:1}
.post-body{padding:24px 26px 28px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-meta{font-size:12px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--gold)}
.post-body h3{font-size:19px;line-height:1.3}
.post-body p{margin:0;color:var(--muted);font-size:15px}
.post-body .more{margin-top:auto;padding-top:10px;font-weight:700;color:var(--cyan);font-size:14px}
.post-card.featured{grid-column:1/-1;display:grid;grid-template-columns:1.1fr 1fr}
.post-card.featured .post-cover{aspect-ratio:auto;min-height:320px}
.post-card.featured h3{font-size:clamp(22px,2.6vw,32px)}

/* cover art variants */
.cv{background:radial-gradient(circle at 30% 30%,rgba(57,202,255,.35),transparent 55%),radial-gradient(circle at 80% 80%,rgba(255,154,31,.3),transparent 55%),#070b14}
.cv::before{content:"";position:absolute;inset:-20%;background-image:linear-gradient(rgba(120,170,255,.12) 2px,transparent 2px),linear-gradient(90deg,rgba(120,170,255,.12) 2px,transparent 2px);background-size:46px 46px;transform:rotate(-12deg)}
.cv1{background:radial-gradient(circle at 25% 25%,rgba(7,137,255,.55),transparent 55%),radial-gradient(circle at 85% 85%,rgba(255,181,62,.35),transparent 50%),#060a14}
.cv2{background:radial-gradient(circle at 70% 30%,rgba(255,154,31,.45),transparent 55%),radial-gradient(circle at 15% 85%,rgba(57,202,255,.35),transparent 55%),#090a12}
.cv3{background:conic-gradient(from 210deg at 50% 50%,rgba(7,137,255,.45),rgba(57,202,255,.2),rgba(255,181,62,.35),rgba(7,137,255,.45));}
.cv4{background:radial-gradient(circle at 50% 50%,rgba(57,202,255,.4),transparent 60%),#05080f}
.cv5{background:linear-gradient(130deg,rgba(7,137,255,.55),rgba(57,202,255,.25) 40%,rgba(255,181,62,.45) 75%,rgba(255,122,0,.5)),#05080f}
.cover-tiles{position:relative;z-index:1;display:grid;grid-template-columns:repeat(3,54px);gap:8px;transform:rotate(-8deg)}
.cover-tiles span{height:54px;border-radius:10px;display:grid;place-items:center;font-family:var(--display);font-weight:900;font-size:14px}

/* CTA band */
.cta-band{position:relative;padding:64px;border-radius:30px;overflow:hidden;text-align:center;border:1px solid var(--line-2);background:radial-gradient(600px 300px at 20% 0%,rgba(7,137,255,.35),transparent 70%),radial-gradient(600px 300px at 80% 100%,rgba(255,154,31,.3),transparent 70%),#070b14}
.cta-band h2{font-size:clamp(30px,4.6vw,56px);font-weight:900;margin-bottom:14px}
.cta-band p{color:var(--muted);max-width:620px;margin:0 auto 30px;font-size:18px}

/* footer */
.site-footer{border-top:1px solid var(--line);padding:56px 0 40px;margin-top:40px;background:rgba(4,6,11,.6)}
.site-footer .wrap{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px}
.site-footer h4{font-family:var(--display);font-size:13px;letter-spacing:.2em;text-transform:uppercase;color:var(--silver);margin:0 0 14px}
.site-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.site-footer a{color:var(--muted);font-size:15px}
.site-footer a:hover{color:#fff}
.site-footer p{color:var(--dim);font-size:14px;margin:12px 0 0;max-width:360px}
.copyright{grid-column:1/-1;border-top:1px solid var(--line);padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:var(--dim);font-size:13px}

/* ARTICLE */
.article-hero{padding:70px 0 40px}
.crumbs{font-size:13px;color:var(--dim);margin-bottom:24px}
.crumbs a{color:var(--muted)}
.article-hero h1{font-size:clamp(32px,5vw,58px);font-weight:900;max-width:960px}
.article-hero .lead{max-width:780px;margin-top:22px}
.byline{display:flex;flex-wrap:wrap;gap:18px;align-items:center;margin-top:26px;font-size:14px;color:var(--dim)}
.byline span{display:flex;align-items:center;gap:8px}
.byline span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan)}
.article-banner{height:260px;border-radius:26px;border:1px solid var(--line-2);position:relative;overflow:hidden;display:grid;place-items:center;margin-bottom:56px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:60px;align-items:start}
.prose{font-size:18.5px;line-height:1.8;color:#d3def3;max-width:760px}
.prose>p:first-of-type::first-letter{float:left;font-family:var(--display);font-size:72px;line-height:.9;font-weight:900;padding:6px 12px 0 0;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.prose h2{font-size:clamp(24px,2.6vw,32px);margin:58px 0 18px;color:#fff;scroll-margin-top:90px}
.prose h3{font-size:20px;margin:38px 0 12px;color:var(--silver)}
.prose p{margin:0 0 22px}
.prose strong{color:#fff}
.prose ul,.prose ol{margin:0 0 24px;padding-left:22px}
.prose li{margin-bottom:10px}
.prose li::marker{color:var(--cyan)}
.prose blockquote{margin:34px 0;padding:26px 30px;border-radius:18px;border-left:3px solid var(--gold);background:rgba(255,154,31,.07);font-size:20px;font-style:italic;color:#fff}
.prose .callout{margin:34px 0;padding:24px 28px;border-radius:18px;border:1px solid var(--line-2);background:rgba(7,137,255,.08)}
.prose .callout b{display:block;font-family:var(--display);font-size:13px;letter-spacing:.2em;text-transform:uppercase;color:var(--cyan);margin-bottom:8px}
.prose table{width:100%;border-collapse:collapse;margin:26px 0 30px;font-size:16px}
.prose th,.prose td{text-align:left;padding:12px 14px;border-bottom:1px solid var(--line)}
.prose th{color:var(--silver);font-family:var(--display);font-size:12px;letter-spacing:.14em;text-transform:uppercase}
.table-scroll{overflow-x:auto}
.toc{position:sticky;top:100px;padding:26px;border-radius:20px;border:1px solid var(--line);background:rgba(11,18,32,.7)}
.toc h4{font-family:var(--display);font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);margin:0 0 14px}
.toc ol{margin:0;padding-left:18px;display:grid;gap:8px;font-size:14px}
.toc a{color:var(--muted)}
.toc a:hover{color:#fff}
.toc .btn{width:100%;margin-top:22px}
.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:70px}
.article-nav a{padding:22px 24px;border-radius:18px;border:1px solid var(--line);background:rgba(11,18,32,.6);color:var(--text)}
.article-nav a:hover{border-color:var(--line-2)}
.article-nav small{display:block;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);margin-bottom:6px}
.article-nav .next{text-align:right}
.progress-bar{position:fixed;top:0;left:0;height:3px;width:0;background:var(--grad);z-index:60;box-shadow:0 0 12px rgba(57,202,255,.7)}

/* reveal */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .8s ease,transform .8s ease}
.reveal.in{opacity:1;transform:none}

/* responsive */
@media (max-width:1000px){
  .hero .wrap,.split{grid-template-columns:1fr}
  .hero{padding-top:56px}
  .board{transform:none;max-width:420px}
  .g3,.g4{grid-template-columns:1fr 1fr}
  .post-card.featured{grid-template-columns:1fr}
  .post-card.featured .post-cover{min-height:220px}
  .article-layout{grid-template-columns:1fr}
  .toc{position:static}
  .site-footer .wrap{grid-template-columns:1fr 1fr}
}
@media (max-width:720px){
  body{font-size:16px}
  section{padding:64px 0}
  .nav{position:fixed;top:70px;left:0;right:0;flex-direction:column;align-items:stretch;padding:14px 16px 20px;background:rgba(4,6,11,.97);border-bottom:1px solid var(--line);display:none}
  .nav.open{display:flex}
  .nav a{padding:12px 14px}
  .nav-toggle{display:block}
  .g2,.g3,.g4{grid-template-columns:1fr}
  .stats{gap:22px}
  .stats div{font-size:24px}
  .board{--gap:7px}
  .cta-band{padding:40px 22px}
  .prose{font-size:17px}
  .article-banner{height:180px}
  .article-nav{grid-template-columns:1fr}
  .site-footer .wrap{grid-template-columns:1fr}
  .hero-cta .btn{flex:1}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}.reveal{opacity:1;transform:none}}
.nav .btn-play,.nav .btn-play:hover{color:#04060b;background:var(--grad);padding:10px 18px}
.brand-mark{font-size:10px;letter-spacing:0}

.btn.btn-play,.btn.btn-play:hover,.btn.btn-play:focus,.toc .btn.btn-play,.nav .btn.btn-play{color:#04060b;text-shadow:none}
.btn.btn-play svg{fill:#04060b}

/* En bref (articles) */
.prose .bref{margin:0 0 40px;padding:24px 28px;border-radius:18px;border:1px solid rgba(255,181,62,.35);background:linear-gradient(160deg,rgba(255,154,31,.08),rgba(7,137,255,.06))}
.prose .bref b{display:block;font-family:var(--display);font-size:13px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:10px}
.prose .bref ul{margin:0;padding-left:20px}
.prose .bref li{margin-bottom:8px;font-size:17px;line-height:1.6;color:#e8f0ff}
.prose .bref + p::first-letter{float:left;font-family:var(--display);font-size:72px;line-height:.9;font-weight:900;padding:6px 12px 0 0;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}

/* FAQ */
.faq-wrap{max-width:880px}
.faq-wrap>h2{font-size:clamp(22px,2.6vw,30px);margin:46px 0 18px}
.faq-list{display:grid;gap:12px}
.faq{border:1px solid var(--line);border-radius:16px;background:rgba(11,18,32,.7);transition:border-color .2s}
.faq[open]{border-color:var(--line-2)}
.faq summary{list-style:none;cursor:pointer;padding:20px 56px 20px 24px;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:22px;top:50%;transform:translateY(-50%);font-family:var(--display);font-size:22px;color:var(--cyan)}
.faq[open] summary::after{content:"−"}
.faq h3{font-family:var(--body);font-size:18px;font-weight:700;margin:0;line-height:1.4}
.faq p{margin:0;padding:0 24px 22px;color:var(--muted);font-size:16.5px}
.faq p strong{color:#fff}

/* Sources + légal */
.prose .sources{margin-top:56px;padding-top:26px;border-top:1px solid var(--line)}
.prose .sources h2{font-size:15px;letter-spacing:.2em;text-transform:uppercase;color:var(--dim);margin:0 0 12px}
.prose .sources ul{font-size:15px;line-height:1.6;margin:0}
.prose .sources a{color:var(--muted)}
.prose .sources a:hover{color:#fff}
.legal{margin:0 auto 40px}
.legal>p:first-of-type::first-letter{float:none;font:inherit;padding:0;background:none;-webkit-background-clip:border-box;background-clip:border-box;color:inherit}
.copyright a{color:var(--muted)}
.studio img{width:100%;height:auto}

/* Chiffres */
.chiffres{max-width:900px;margin:0 auto 40px}
.prose table.facts th[scope=row]{width:36%;font-family:var(--body);font-size:15px;letter-spacing:0;text-transform:none;color:var(--silver);font-weight:700;vertical-align:top}
.prose table.facts td{color:#e8f0ff}
.prose table .src{width:70px;text-align:right;font-size:13px;white-space:nowrap}
.prose table .src a{color:var(--dim)}
.prose table .src a:hover{color:var(--cyan)}

/* Figures & captures */
.prose figure{margin:30px 0 34px}
.prose figure img{border-radius:16px;border:1px solid var(--line-2);margin:0 auto;box-shadow:0 18px 50px rgba(0,0,0,.45)}
.prose figcaption,.shots-mini figcaption{margin-top:12px;font-size:14px;color:var(--dim);text-align:center}
.prose figure.duo{display:flex;flex-wrap:wrap;justify-content:center;gap:18px}
.prose figure.duo img{width:180px;margin:0}
.prose figure.duo figcaption{flex-basis:100%}
.shot{margin:0 0 26px}
.shot img{width:100%;height:auto;border-radius:24px;border:1px solid var(--line-2);box-shadow:0 40px 90px rgba(0,0,0,.6),0 0 70px rgba(7,137,255,.18)}
.shots-mini figure{margin:0;padding:18px;border-radius:20px;border:1px solid var(--line);background:rgba(11,18,32,.7);display:flex;flex-direction:column;align-items:center;justify-content:space-between}
.shots-mini img{max-height:300px;width:auto;border-radius:12px}

/* fix : proportions des images (pas de déformation) */
img{height:auto}
.prose figure img{height:auto;max-width:100%}
.prose figure.duo img{width:180px;height:auto;object-fit:contain}
.shots-mini img{height:auto;max-height:300px;width:auto;max-width:100%;object-fit:contain}

/* Solveur 2048 */
.sv{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:34px;align-items:start;padding:28px;border-radius:28px;border:1px solid var(--line-2);background:linear-gradient(170deg,rgba(18,28,51,.85),rgba(8,12,22,.9));box-shadow:0 30px 80px rgba(0,0,0,.5)}
.sv-toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:16px}
.sv-seg{display:inline-flex;padding:4px;border-radius:999px;border:1px solid var(--line-2);background:rgba(4,6,11,.6)}
.sv-seg button{border:0;background:none;color:var(--muted);font:700 15px var(--body);padding:9px 18px;border-radius:999px;cursor:pointer}
.sv-seg button.on{background:var(--grad);color:#04060b}
.sv-tools{display:flex;gap:8px}
.sv-tools .btn{padding:9px 14px}
.sv-grid{--n:4;--gap:10px;display:grid;grid-template-columns:repeat(var(--n),1fr);gap:var(--gap);padding:var(--gap);aspect-ratio:1;border-radius:22px;background:linear-gradient(160deg,#121c33,#070b14);border:1px solid var(--line-2);max-width:520px;margin:0 auto}
.sv-cell{border:0;border-radius:12px;background:rgba(120,170,255,.07);box-shadow:inset 0 2px 6px rgba(0,0,0,.5);cursor:pointer;font-family:var(--display);font-weight:900;font-size:clamp(14px,3.2vw,26px);color:#fff;padding:0;min-width:0;transition:transform .12s}
.sv-cell:hover{outline:2px solid rgba(57,202,255,.6);outline-offset:-2px}
.sv-cell:focus-visible{outline:2px solid var(--gold);outline-offset:-2px}
.sv-cell.tile{box-shadow:none}
.sv-grid[style*="--n: 5"] .sv-cell,.sv-grid[style*="--n:5"] .sv-cell{font-size:clamp(12px,2.6vw,21px)}
.sv-cell.small,.sv-pal.small{font-size:clamp(11px,2.2vw,18px)}
.sv-cell.xs,.sv-pal.xs{font-size:clamp(9px,1.6vw,14px)}
.sv-help{font-size:14px;color:var(--dim);margin:16px 0 12px;text-align:center}
.sv-help b{color:var(--gold)}
.sv-palette{display:grid;grid-template-columns:repeat(9,1fr);gap:6px}
.sv-pal{border:0;border-radius:9px;aspect-ratio:1;font-family:var(--display);font-weight:800;font-size:12px;color:#fff;cursor:pointer;padding:0;min-width:0;opacity:.75;transition:transform .12s,opacity .12s}
.sv-pal.small,.sv-pal.xs{font-size:9px}
.sv-pal:hover{opacity:1}
.sv-pal.on{opacity:1;outline:2px solid #fff;outline-offset:2px;transform:scale(1.06)}
.sv-erase{background:rgba(120,170,255,.08);color:var(--muted);border:1px dashed var(--line-2)}
.sv-go{width:100%;font-size:17px;padding:18px}
.sv.busy .sv-go{opacity:.6;pointer-events:none}
.sv-status{min-height:1.5em;color:var(--muted);font-size:15px;margin:14px 0 0}
.sv.busy .sv-status::after{content:"";display:inline-block;width:14px;height:14px;margin-left:8px;border-radius:50%;border:2px solid var(--cyan);border-top-color:transparent;animation:svspin .8s linear infinite;vertical-align:-2px}
@keyframes svspin{to{transform:rotate(360deg)}}
.sv-result{margin-top:6px}
.sv-best{display:flex;align-items:center;gap:18px;padding:18px 20px;border-radius:18px;background:linear-gradient(120deg,rgba(7,137,255,.18),rgba(255,181,62,.14));border:1px solid rgba(255,181,62,.4)}
.sv-arrow{width:72px;height:72px;flex:none;border-radius:18px;display:grid;place-items:center;font-size:44px;font-weight:900;color:#04060b;background:var(--grad);box-shadow:0 0 30px rgba(57,202,255,.45)}
.sv-best small{display:block;font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);font-weight:800}
.sv-best strong{font-family:var(--display);font-size:32px}
.sv-why{margin:18px 0;padding-left:20px;color:#d3def3;font-size:15.5px;line-height:1.6}
.sv-why li{margin-bottom:6px}
.sv-why strong{color:#fff}
.sv-bars{display:grid;gap:8px}
.sv-bar{display:grid;grid-template-columns:96px 1fr 128px;align-items:center;gap:10px;font-size:14px;color:var(--muted)}
.sv-bar i{display:block;height:10px;border-radius:999px;background:linear-gradient(90deg,#173f7a,#39caff)}
.sv-bar.best i{background:var(--grad)}
.sv-bar.best span,.sv-bar.best em{color:#fff;font-weight:700}
.sv-bar.off{opacity:.45}
.sv-bar em{font-style:normal;text-align:right}
.sv-actions{margin-top:18px}
.sv-note{font-size:13px;color:var(--dim);margin:14px 0 0}
.solver-band{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:32px 36px;border-radius:26px;border:1px solid var(--line-2);background:radial-gradient(500px 240px at 0% 0%,rgba(7,137,255,.3),transparent 70%),radial-gradient(500px 240px at 100% 100%,rgba(255,154,31,.22),transparent 70%),#070b14}
.solver-band h2{font-size:clamp(24px,3vw,34px);margin-bottom:8px}
.solver-band p{margin:0;color:var(--muted)}
@media (max-width:900px){.sv{grid-template-columns:1fr;padding:18px}.sv-palette{grid-template-columns:repeat(6,1fr)}.solver-band{flex-direction:column;align-items:flex-start;padding:26px 22px}}
@media (max-width:420px){.sv-grid{--gap:7px}.sv-bar{grid-template-columns:80px 1fr 110px;font-size:13px}}
.sv-bar.bad i{background:linear-gradient(90deg,#5a1d1d,#c0392b)}
.sv-cell:not(.tile){background:rgba(0,0,0,.4);box-shadow:inset 0 2px 8px rgba(0,0,0,.6),inset 0 0 0 1px rgba(120,170,255,.08)}

/* Mini-partie (accueil) */
.mini{width:min(100%,500px);margin:0 auto}
.mini-bar{display:flex;align-items:center;gap:10px;margin-bottom:22px}
.mini-stat{flex:1;padding:8px 14px;border-radius:14px;border:1px solid var(--line);background:rgba(11,18,32,.75);font-size:11px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--dim)}
.mini-stat b{display:block;font-family:var(--display);font-size:20px;letter-spacing:0;color:#fff;line-height:1.2}
.mini-bar .btn{padding:12px 16px}
.mini .board{width:100%;outline:none}
.mini .board.playing{transform:none;touch-action:none;cursor:grab}
.mini .board:focus-visible{box-shadow:0 40px 90px rgba(0,0,0,.65),0 0 0 3px var(--cyan)}
.mini .tile.big{font-size:clamp(12px,2vw,19px)}
.mini-overlay{position:absolute;inset:0;z-index:2;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;border-radius:26px;background:rgba(4,6,11,.55);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px);text-align:center;padding:20px}
.mini-overlay[hidden]{display:none}
.mini-overlay strong{font-family:var(--display);font-size:28px}
.mini-overlay span{color:var(--gold);font-weight:700}
.mini-overlay small{color:var(--muted);font-size:13px;max-width:280px}
.mini-btns{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-top:6px}
.mini-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin-top:22px;font-size:13px;color:var(--dim)}
.mini-full{font-weight:700;color:var(--cyan)}
@media (max-width:1000px){.mini .board{transform:none}}

/* 404 */
.e404-hero{min-height:calc(100svh - 70px);display:flex;align-items:center}
.e404-links{list-style:none;padding:0;margin:30px 0 0;display:flex;flex-wrap:wrap;gap:8px}
.e404-links a{display:inline-block;padding:8px 14px;border-radius:999px;border:1px solid var(--line);color:var(--muted);font-size:14px}
.e404-links a:hover{color:#fff;border-color:var(--line-2)}
.e404-board{transform:rotateX(18deg) rotateY(-18deg) rotateZ(-6deg)}
.e404-board .e404{font-size:clamp(20px,3.4vw,34px);animation:e404 2.4s ease-in-out infinite}
.e404-board .e404:nth-child(13){animation-delay:.3s}
.e404-board .e404:nth-child(11){animation-delay:.6s}
@keyframes e404{0%,100%{transform:translate(0,0) rotate(0)}20%{transform:translate(-3px,1px) rotate(-4deg)}40%{transform:translate(3px,-2px) rotate(3deg)}60%{transform:translate(-2px,2px) rotate(-2deg)}80%{transform:translate(2px,0) rotate(2deg)}}

/* fix : rangées de hauteur égale (grille parfaitement carrée) */
.board{grid-template-rows:repeat(5,minmax(0,1fr));grid-template-columns:repeat(5,minmax(0,1fr))}
.board>.cell,.board>.tile{min-height:0;min-width:0}
.sv-grid{grid-template-rows:repeat(var(--n),minmax(0,1fr));grid-template-columns:repeat(var(--n),minmax(0,1fr))}

/* Glossaire */
.gl-wrap{max-width:960px}
.gl-tools{position:sticky;top:70px;z-index:5;padding:16px 0 14px;background:linear-gradient(var(--bg) 80%,transparent);display:grid;gap:12px}
#gl-search{width:100%;padding:15px 20px;border-radius:16px;border:1px solid var(--line-2);background:rgba(11,18,32,.95);color:var(--text);font:500 16px var(--body);outline:none}
#gl-search:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(57,202,255,.2)}
.gl-chips{display:flex;flex-wrap:wrap;gap:8px}
.gl-chips button{border:1px solid var(--line-2);background:rgba(11,18,32,.8);color:var(--muted);font:600 14px var(--body);padding:7px 14px;border-radius:999px;cursor:pointer}
.gl-chips button.on{background:var(--grad);color:#04060b;border-color:transparent}
.gl-az{display:flex;flex-wrap:wrap;gap:4px}
.gl-az a{min-width:30px;text-align:center;padding:4px 6px;border-radius:8px;font-family:var(--display);font-weight:800;font-size:13px;color:var(--muted)}
.gl-az a:hover{background:rgba(120,170,255,.1);color:#fff}
.gl-letter{font-size:34px;margin:40px 0 14px;scroll-margin-top:230px;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;width:max-content}
.gl-list{display:grid;gap:12px;margin:0}
.gl-term{padding:20px 24px;border-radius:18px;border:1px solid var(--line);background:rgba(11,18,32,.7);scroll-margin-top:230px}
.gl-term:target{border-color:var(--gold);box-shadow:0 0 0 1px var(--gold),0 0 30px rgba(255,181,62,.2)}
.gl-term dt{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:6px}
.gl-term dfn{font-style:normal;font-family:var(--display);font-weight:800;font-size:19px;color:#fff}
.gl-cat{font-size:11px;font-weight:800;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);padding:3px 9px;border-radius:999px;border:1px solid rgba(255,181,62,.35)}
.gl-term dd{margin:0;color:#c9d6ee;font-size:16.5px;line-height:1.65}
.gl-more{font-weight:700;font-size:14px;white-space:nowrap}
.gl-empty{color:var(--muted);text-align:center;margin-top:30px}
@media (max-width:720px){.gl-tools{top:70px}.gl-letter,.gl-term{scroll-margin-top:260px}}
@media (max-width:720px){.gl-tools{position:static;background:none}.gl-letter,.gl-term{scroll-margin-top:90px}}

/* Sélecteur de langue (drapeaux) */
.lang-switch{display:inline-flex;align-items:center;gap:2px;padding:3px;margin-left:6px;border-radius:999px;border:1px solid var(--line-2);background:rgba(11,18,32,.7)}
.nav .lang-switch a{display:inline-flex;align-items:center;gap:6px;padding:5px 9px;border-radius:999px;font-size:12px;font-weight:800;letter-spacing:.06em;color:var(--dim);opacity:.75}
.nav .lang-switch a:hover{opacity:1;color:#fff;background:rgba(120,170,255,.1)}
.nav .lang-switch a[aria-current]{opacity:1;color:#fff;background:rgba(120,170,255,.16)}
.lang-switch svg{width:20px;height:14px;border-radius:3px;box-shadow:0 0 0 1px rgba(255,255,255,.25);flex:none}
@media (max-width:720px){.lang-switch{margin:8px 0 0;align-self:flex-start}.nav .lang-switch a{padding:8px 12px;font-size:13px}}
.e404-en{margin:22px 0 0;color:var(--muted);font-size:15px}
@media (max-width:900px){
  .nav{position:fixed;top:70px;left:0;right:0;flex-direction:column;align-items:stretch;padding:14px 16px 20px;background:rgba(4,6,11,.97);border-bottom:1px solid var(--line);display:none}
  .nav.open{display:flex}
  .nav a{padding:12px 14px}
  .nav-toggle{display:block}
  .lang-switch{margin:8px 0 0;align-self:flex-start}
}