/* PA LW-inspired foundation — Part 1 (Header/Footer + base tokens)
   Naming convention: pa-*
*/
:root{
  --pa-purple-900:#2a0a5e;
  --pa-purple-700:#4b18a8;
  --pa-purple-500:#6b3df0;
  --pa-lav-100:#f2ecff;
  --pa-gray-900:#17121f;
  --pa-gray-700:#3b3347;
  --pa-gray-600:#5b526a;
  --pa-white:#ffffff;
  --pa-radius:16px;
  --pa-shadow:0 14px 36px rgba(23,18,31,.12);
  --pa-maxw:1160px;
  --pa-pad:clamp(16px,2.2vw,28px);
  --pa-font:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Arial,"Noto Sans","Helvetica Neue",sans-serif;
}

body{
  margin:0;
  font-family:var(--pa-font);
  color:var(--pa-gray-900);
  background:
    radial-gradient(900px 420px at 10% -10%, rgba(107,61,240,.18), transparent 60%),
    radial-gradient(850px 460px at 95% 0%, rgba(75,24,168,.14), transparent 55%),
    linear-gradient(180deg, var(--pa-lav-100), #fff 60%);
}

.pa-container{max-width:var(--pa-maxw);margin:0 auto;padding:0 var(--pa-pad);}
.pa-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:12px 16px;border-radius:999px;font-weight:800;font-size:14px;
  border:1px solid transparent;text-decoration:none;cursor:pointer;
  transition:transform .12s ease, box-shadow .12s ease, background .12s ease;
}
.pa-btn:active{transform:translateY(1px)}
.pa-btn--primary{
  color:#fff;
  background:linear-gradient(135deg,var(--pa-purple-900),var(--pa-purple-500));
  box-shadow:0 10px 22px rgba(75,24,168,.22);
}
.pa-btn--ghost{
  background:rgba(255,255,255,.75);
  border-color:rgba(75,24,168,.20);
  color:var(--pa-purple-900);
}
.pa-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 12px;border-radius:999px;
  border:1px solid rgba(75,24,168,.18);
  background:rgba(255,255,255,.7);
  font-weight:800;font-size:13px;color:var(--pa-purple-900);
}

/* Header */
.pa-header{
  position:sticky;top:0;z-index:999;
  backdrop-filter:blur(10px);
  background:rgba(242,236,255,.70);
  border-bottom:1px solid rgba(90,60,200,.14);
}
.pa-nav{
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;padding:12px 0;
}
.pa-brand{display:flex;align-items:center;gap:12px;min-width:240px;text-decoration:none;}
.pa-logo{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(135deg,var(--pa-purple-900),var(--pa-purple-500));
  box-shadow:0 10px 18px rgba(75,24,168,.22);
}
.pa-brand-name{font-weight:900;letter-spacing:-.02em;color:var(--pa-gray-900);}
.pa-brand-tag{font-size:12px;color:var(--pa-gray-600);margin-top:1px;}

.pa-menu{display:flex;align-items:center;gap:10px;justify-content:center;flex:1;}
.pa-menu a{
  padding:10px 10px;border-radius:999px;
  font-weight:800;font-size:14px;color:var(--pa-gray-700);text-decoration:none;
}
.pa-menu a:hover{background:rgba(255,255,255,.65)}
.pa-menu a.is-active{color:var(--pa-purple-900);background:rgba(107,61,240,.10)}

.pa-right{display:flex;align-items:center;gap:10px;justify-content:flex-end;min-width:280px;}
.pa-lang{
  display:flex;align-items:center;gap:6px;
  padding:6px 8px;border-radius:999px;
  border:1px solid rgba(90,60,200,.16);
  background:rgba(255,255,255,.7);
}
.pa-lang a{font-weight:900;font-size:12px;padding:6px 8px;border-radius:999px;color:var(--pa-gray-700);text-decoration:none;}
.pa-lang a.is-active{background:linear-gradient(135deg,var(--pa-purple-900),var(--pa-purple-500));color:#fff;}
.pa-lang span{color:rgba(90,60,200,.34);font-weight:900}

/* Dropdown */
.pa-dd{position:relative;}
.pa-dd > a{display:inline-flex;align-items:center;gap:8px;}
.pa-caret{width:0;height:0;border-left:5px solid transparent;border-right:5px solid transparent;border-top:6px solid rgba(23,18,31,.55);margin-top:2px;}
.pa-dd-menu{
  position:absolute;left:0;top:calc(100% + 10px);
  min-width:260px;background:rgba(255,255,255,.96);
  border:1px solid rgba(90,60,200,.18);
  border-radius:14px;box-shadow:var(--pa-shadow);
  padding:8px;display:none;
}
.pa-dd:hover .pa-dd-menu{display:block;}
.pa-dd-menu a{display:block;padding:10px 12px;border-radius:12px;color:var(--pa-gray-700);}
.pa-dd-menu a:hover{background:rgba(107,61,240,.10);color:var(--pa-purple-900);}

/* Mobile */
.pa-toggle{display:none;}
.pa-burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(90,60,200,.18);
  background:rgba(255,255,255,.75);
  align-items:center;justify-content:center;
}
.pa-burger span{width:18px;height:2px;background:var(--pa-purple-900);position:relative;display:block;border-radius:99px;}
.pa-burger span::before,.pa-burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--pa-purple-900);border-radius:99px;
}
.pa-burger span::before{top:-6px}
.pa-burger span::after{top:6px}

@media (max-width:980px){
  .pa-right{min-width:auto}
  .pa-burger{display:flex}
  .pa-menu{
    position:absolute;left:var(--pa-pad);right:var(--pa-pad);top:66px;
    background:rgba(255,255,255,.98);
    border:1px solid rgba(90,60,200,.18);
    border-radius:16px;box-shadow:var(--pa-shadow);
    padding:10px;display:none;flex-direction:column;align-items:stretch;
  }
  .pa-dd-menu{position:static;display:none;box-shadow:none;border:none;padding:0 0 6px;background:transparent;}
  .pa-dd.is-open .pa-dd-menu{display:block;}
  .pa-toggle:checked ~ .pa-menu{display:flex;}
}

/* Footer */
.pa-footer{
  border-top:1px solid rgba(90,60,200,.14);
  background:rgba(255,255,255,.75);
  padding:28px 0;margin-top:32px;
}
.pa-footer-grid{
  display:grid;gap:18px;
  grid-template-columns:1.3fr .9fr .9fr;
}
@media (max-width:920px){.pa-footer-grid{grid-template-columns:1fr;}}
.pa-ft-title{font-weight:900;margin:0 0 8px;}
.pa-ft a{display:block;padding:6px 0;color:var(--pa-gray-700);font-weight:800;font-size:14px;text-decoration:none;}
.pa-note{color:var(--pa-gray-600);font-size:12px;line-height:1.6;}