:root{
  --ink:#0b0b10; --body:#5b6170; --mut:#9aa1ad; --line:#e9e9f0; --soft:#f7f7fa;
  --blue:#4f6bf5; --green:#16a34a; --red:#ef4444;
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:auto}
body{font-family:var(--font);background:#fff;color:var(--ink);-webkit-font-smoothing:antialiased;min-height:100vh}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:6px}

.nav{position:fixed;top:18px;left:50%;transform:translateX(-50%);z-index:100;display:flex;align-items:center;gap:22px;
  background:rgba(255,255,255,.82);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);border-radius:999px;padding:9px 10px 9px 20px;box-shadow:0 4px 20px rgba(16,16,40,.06)}
.nav-logo{display:flex;align-items:center;gap:9px;font-weight:700;font-size:17px;letter-spacing:-.02em}
.nav-links{display:flex;align-items:center;gap:24px;font-size:14px;font-weight:500;color:#3d4150}
.nav-links a:hover{color:var(--ink)}
.nav-login{font-size:14px;font-weight:600;color:#3d4150;padding:8px 4px;background:none;border:none;cursor:pointer}
.nav-login:hover{color:var(--ink)}
.nav-cta{background:var(--ink);color:#fff;font-size:14px;font-weight:600;padding:10px 20px;border-radius:999px;border:none;cursor:pointer;transition:transform .2s,background .2s}
.nav-cta:hover{background:#23232c;transform:translateY(-1px)}

.auth{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:110px 24px 64px}
.auth-card{width:100%;max-width:440px;background:#fff;border:1px solid var(--line);border-radius:28px;padding:40px 36px;box-shadow:0 1px 2px rgba(16,16,40,.04),0 8px 24px rgba(16,16,40,.06)}
.auth-card h1{font-size:32px;font-weight:800;letter-spacing:-.03em;margin:10px 0 8px}
.auth-card .lead{font-size:15px;line-height:1.55;color:var(--body);margin-bottom:28px}
.badge{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:500;color:#3d4150;
  border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 14px}
.badge .dot{width:6px;height:6px;border-radius:50%;background:var(--blue)}

.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}
.field label{font-size:13px;font-weight:600}
.field input{height:48px;border:1.5px solid var(--line);border-radius:14px;padding:0 14px;font-size:15px;background:#fff;color:var(--ink)}
.field input:focus{outline:none;border-color:#c9d2ff;box-shadow:0 0 0 4px rgba(79,107,245,.12)}
.auth-error{background:#fff1f2;color:#be123c;border:1px solid #fecdd3;border-radius:12px;padding:11px 14px;font-size:13.5px;font-weight:500;margin-bottom:16px}
.auth-submit{width:100%;height:50px;border:none;border-radius:999px;background:var(--ink);color:#fff;font-size:15px;font-weight:600;cursor:pointer;margin-top:6px}
.auth-submit:hover{background:#23232c}
.auth-submit:disabled{opacity:.6;cursor:not-allowed}
.auth-switch{text-align:center;margin-top:20px;font-size:14px;color:var(--body)}
.auth-switch a{color:var(--ink);font-weight:700}

.account-grid{display:grid;gap:12px;margin:8px 0 28px}
.account-row{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14.5px}
.account-row span{color:var(--mut);font-weight:500}
.account-row b{font-weight:600;text-align:right}
.account-actions{display:flex;flex-direction:column;gap:10px}
.btn-outline{display:flex;align-items:center;justify-content:center;height:48px;border:1.5px solid var(--line);border-radius:999px;font-weight:600;font-size:14.5px;background:#fff}
.btn-outline:hover{border-color:var(--ink)}

@media(max-width:900px){
  .nav-links{display:none}
  .nav{gap:12px;padding-left:14px}
}
@media(max-width:560px){
  .auth-card{padding:32px 22px;border-radius:22px}
  .auth-card h1{font-size:26px}
}