*{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#F0EEF8;--surface:#fff;--text:#0D0B1E;--text2:#5A5478;
  --border:#D8D4F0;--primary:#6C63FF;--accent:#FF6584;
  --primary-rgb:108,99,255;--radius:24px;
  --err:#FF4D6D;--ok:#43E97B;
}
[data-theme=dark]{
  --bg:#0D0B1E;--surface:#1A1730;--text:#F0EEF8;--text2:#9B96C0;--border:#2D2850;
}
html{scroll-behavior:smooth}
body{
  font-family:'Plus Jakarta Sans',sans-serif;
  background:var(--bg);color:var(--text);min-height:100vh;overflow-x:hidden;
  font-size:15px;
}
.auth-bg{position:fixed;inset:0;overflow:hidden;z-index:0;pointer-events:none}
.blob{position:absolute;border-radius:50%;filter:blur(80px);opacity:.25;animation:float 9s ease-in-out infinite}
.b1{width:500px;height:500px;background:var(--primary);top:-150px;left:-100px}
.b2{width:400px;height:400px;background:var(--accent);bottom:-100px;right:-80px;animation-delay:4s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-25px)}}

.auth-wrap{position:relative;z-index:1;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:40px 20px}
.auth-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  padding:44px 40px;width:100%;max-width:440px;
  box-shadow:0 20px 60px rgba(0,0,0,.08);animation:slideUp .45s ease;
}
@keyframes slideUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
.logo{
  font-family:'Plus Jakarta Sans',sans-serif;font-size:1.4rem;font-weight:800;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  text-decoration:none;display:block;margin-bottom:24px;
}
h2{font-family:'Plus Jakarta Sans',sans-serif;font-size:1.65rem;font-weight:800;margin-bottom:5px;letter-spacing:-.02em}
.sub{color:var(--text2);font-size:.93rem;margin-bottom:26px;font-weight:400}
.alert{padding:11px 15px;border-radius:11px;font-size:.86rem;margin-bottom:18px;font-weight:500}
.alert-err{background:rgba(255,77,109,.1);color:var(--err);border:1px solid rgba(255,77,109,.2)}
.alert-ok{background:rgba(67,233,123,.1);color:#1aaf5d;border:1px solid rgba(67,233,123,.2)}
.field{margin-bottom:16px}
.field label{display:block;font-size:.76rem;font-weight:700;color:var(--text2);margin-bottom:6px;letter-spacing:.05em;text-transform:uppercase}
.field input,.field select,.field textarea{
  width:100%;padding:12px 15px;border:1.5px solid var(--border);border-radius:13px;
  background:var(--bg);color:var(--text);font-size:.92rem;font-family:'Plus Jakarta Sans',sans-serif;
  transition:all .22s;outline:none;
}
.field input:focus,.field select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(var(--primary-rgb),.1)}
.forgot{display:block;font-size:.78rem;color:var(--primary);text-decoration:none;margin-top:5px;text-align:right;font-weight:600}
.btn-auth{
  width:100%;padding:13px;border-radius:50px;border:none;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  color:#fff;font-size:.97rem;font-weight:700;
  font-family:'Plus Jakarta Sans',sans-serif;cursor:pointer;
  transition:all .28s;margin-top:4px;letter-spacing:.01em;
}
.btn-auth:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(var(--primary-rgb),.35)}
.switch{text-align:center;font-size:.87rem;color:var(--text2);margin-top:20px}
.switch a{color:var(--primary);font-weight:700;text-decoration:none}
.theme-btn{
  position:fixed;bottom:18px;right:18px;width:42px;height:42px;border-radius:50%;
  border:1px solid var(--border);background:var(--surface);cursor:pointer;font-size:1rem;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 14px rgba(0,0,0,.1);z-index:99;transition:all .2s;
}
.theme-btn:hover{border-color:var(--primary)}
hr.divider{border:none;border-top:1px solid var(--border);margin:20px 0}

/* Language switcher */
.lang-switch{
  position:fixed;top:16px;right:16px;z-index:999;
  display:flex;gap:4px;background:var(--surface);
  padding:4px;border-radius:50px;border:1px solid var(--border);
  box-shadow:0 2px 12px rgba(0,0,0,.08);
}
.lang-btn{
  padding:5px 12px;border-radius:50px;font-size:.75rem;font-weight:700;
  color:var(--text2);text-decoration:none;transition:all .2s;letter-spacing:.03em;
  font-family:'Plus Jakarta Sans',sans-serif;
}
.lang-btn:hover{color:var(--primary)}
.lang-btn.active{background:var(--primary);color:#fff}

@media(max-width:480px){
  .auth-card{padding:28px 20px}
  .lang-switch{top:10px;right:10px}
}