:root{
  --bg:#f7f7fb; --ink:#1d2333; --muted:#5b6378;
  --accent:#4f46e5; --accent2:#7c3aed;
  --card:#ffffff; --line:#e8eaf2; --radius:14px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:"Segoe UI",system-ui,-apple-system,Roboto,"Helvetica Neue",Arial,sans-serif;
  line-height:1.65}
.wrap{max-width:960px;margin:0 auto;padding:0 20px}

/* language toggle */
.t,.ti{display:none!important}
body.lang-fr .t.fr{display:block!important}
body.lang-pl .t.pl{display:block!important}
body.lang-en .t.en{display:block!important}
body.lang-fr .ti.fr{display:inline!important}
body.lang-pl .ti.pl{display:inline!important}
body.lang-en .ti.en{display:inline!important}

/* header */
.site-header{background:#fff;border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:50}
.header-in{display:flex;align-items:center;gap:18px;padding:12px 20px}
.logo{font-weight:800;font-size:22px;color:var(--ink);text-decoration:none;
  letter-spacing:.5px}
.logo::after{content:" · 3L";color:var(--accent);font-size:13px;font-weight:600}
.main-nav{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}
.main-nav a{color:var(--muted);text-decoration:none;padding:8px 12px;
  border-radius:9px;font-size:15px}
.main-nav a:hover{background:#f0f1f8;color:var(--ink)}
.main-nav a.on{background:#eef0ff;color:var(--accent);font-weight:600}
.langsw{display:flex;border:1px solid var(--line);border-radius:999px;
  overflow:hidden}
.langsw button{border:0;background:#fff;padding:8px 13px;cursor:pointer;
  font-size:13px;font-weight:700;color:var(--muted)}
.langsw button.on{background:var(--accent);color:#fff}

/* hero */
.hero{background:linear-gradient(135deg,#312e81,#4f46e5 55%,#7c3aed);
  color:#fff;padding:72px 0 64px}
.hero h1{margin:0 0 12px;font-size:clamp(30px,5vw,46px);line-height:1.2}
.lede{margin:0 0 28px;font-size:18px;opacity:.92;max-width:640px}
.cta{display:flex;gap:12px;flex-wrap:wrap}
.btn{display:inline-block;background:#fff;color:var(--accent);font-weight:700;
  padding:12px 24px;border-radius:999px;text-decoration:none}
.btn.ghost{background:transparent;color:#fff;border:2px solid rgba(255,255,255,.55)}

/* sections & cards */
.section{padding:48px 0}
.sec-title{font-size:26px;margin:0 0 6px}
.sec-sub{color:var(--muted);margin:0 0 26px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;text-decoration:none;color:inherit;display:block;
  transition:transform .15s,box-shadow .15s}
a.card:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgba(79,70,229,.12)}
.card h3{margin:0 0 8px;font-size:19px}
.card p{margin:0;color:var(--muted);font-size:15px}
.card .go{display:inline-block;margin-top:14px;color:var(--accent);font-weight:700}

/* proverbs */
.prov{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;margin-bottom:14px}
.prov p{margin:7px 0;font-size:16.5px}
.lbl{display:inline-block;min-width:30px;font-size:12px;font-weight:800;
  color:#fff;background:var(--accent);border-radius:6px;padding:2px 7px;
  margin-right:10px;vertical-align:2px}
.p-fr .lbl{background:#2563eb}.p-pl .lbl{background:#dc2626}.p-en .lbl{background:#0d9488}

/* phrases */
.ph-group{margin-bottom:34px}
.ph-group h3{font-size:20px;margin:0 0 12px}
.ph-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;
  background:var(--card);border:1px solid var(--line);border-radius:10px;
  padding:13px 16px;margin-bottom:8px;font-size:15.5px}

/* about / contact */
.prose{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:30px}
.prose p{margin:0 0 14px}
.prose ul{margin:0;padding-left:20px;color:var(--muted)}
.mailbtn{display:inline-block;margin-top:10px;background:var(--accent);color:#fff;
  font-weight:700;padding:14px 30px;border-radius:999px;text-decoration:none;
  font-size:17px}

/* footer */
.site-footer{border-top:1px solid var(--line);margin-top:20px;
  padding:26px 0;color:var(--muted);font-size:14px;text-align:center}
.site-footer p{margin:4px 0}

/* quiz */
.opt{display:block;padding:7px 2px;cursor:pointer;font-size:16px}
.opt input{margin-right:9px}
.q.ok{border-color:#16a34a;background:#f0fdf4}
.q.ko{border-color:#dc2626;background:#fef2f2}

@media(max-width:720px){
  .grid3{grid-template-columns:1fr}
  .ph-row{grid-template-columns:1fr}
  .header-in{flex-wrap:wrap}
  .main-nav{order:3;width:100%}
}