:root{
  --bats-black:#0a0a0a; --bats-ink:#111214; --bats-ink-2:#15161a; --bats-ink-3:#1b1d22;
  --bats-border:rgba(255,255,255,.08); --bats-border-strong:rgba(255,255,255,.14);
  --bats-text:#f1f3f5; --bats-muted:#c9ced6; --bats-dim:#a9b0bb; --echo-red:#cc0a2f; --focus:#88c0ff;
}
*{box-sizing:border-box}
html,body{height:100%}
html{scroll-behavior:smooth}
body{margin:0;font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  font-size:16px;line-height:1.55;color:var(--bats-text);background:var(--bats-black);
  -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}
a{text-decoration:none;color:inherit}a:hover{text-decoration:underline}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}

/* Layout */
.container-wide{max-width:1320px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:1120px;margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.hstack{display:flex;align-items:center;gap:12px}

/* Navbar */
.navbar{position:sticky;top:0;z-index:1000;backdrop-filter:saturate(140%) blur(8px);background:rgba(8,8,10,.6);border-bottom:1px solid var(--bats-border)}
.navbar-inner{height:64px}
.navbar .btn{padding:6px 10px;border-radius:8px;font-size:16px}
.navbar .btn-outline{border-width:1px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--bats-text)}
.brand .logo{height:48px;width:auto;display:block}
.brand .sep{opacity:.45;font-weight:800;letter-spacing:.04em}
.brand .title{font-weight:800;letter-spacing:.01em}

/* Buttons */
.btn{appearance:none;border:0;cursor:pointer;padding:12px 20px;border-radius:12px;font-weight:800;letter-spacing:.01em}
.btn-primary{background:var(--echo-red);color:white;box-shadow:0 10px 30px rgba(204,10,47,.35)}
.btn-primary:hover{filter:brightness(1.02)}
.btn-primary:disabled{opacity:.6;cursor:default;filter:none}
.btn-outline{background:transparent;color:#f5f7fa;border:2px solid #f5f7fa}

/* Signup hero */
.signup-hero{position:relative;min-height:calc(100vh - 64px);display:flex;align-items:center;overflow:hidden;
  background:radial-gradient(120% 80% at 82% 12%, rgba(204,10,47,.13), transparent 60%), var(--bats-black)}
.signup-hero::after{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;
  background:radial-gradient(70% 60% at 16% 32%, rgba(204,10,47,.20), transparent 62%)}
.signup-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;padding:64px 24px}
@media (max-width:900px){.signup-grid{grid-template-columns:1fr;gap:28px;padding:40px 24px}}

.eyebrow{display:inline-block;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#ffd7df;background:rgba(204,10,47,.16);border:1px solid rgba(204,10,47,.36);border-radius:8px;padding:6px 10px;margin-bottom:14px}
.signup-copy h1{font-size:46px;line-height:1.08;margin:0 0 14px}
@media (max-width:900px){.signup-copy h1{font-size:34px}}
.signup-copy .lead{font-size:18px;color:var(--bats-muted);margin:0 0 22px}
.signup-points{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.signup-points li{color:var(--bats-dim);padding-left:24px;position:relative}
.signup-points li::before{content:"";position:absolute;left:0;top:7px;width:10px;height:10px;border-radius:50%;background:var(--echo-red)}
.signup-points strong{color:var(--bats-text)}

/* Signup form card */
.signup-card-wrap{width:100%}
.form-card{background:linear-gradient(180deg, var(--bats-ink), var(--bats-ink-2));border:1px solid var(--bats-border-strong);border-radius:16px;padding:26px;box-shadow:0 20px 60px rgba(0,0,0,.45)}
.form-card-title{margin:0 0 16px;font-size:22px}
.form-field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.form-field label{font-weight:700}
.input{height:48px;border-radius:10px;border:1px solid rgba(255,255,255,.2);background:rgba(0,0,0,.35);color:white;padding:0 12px;outline:none;width:100%}
.input:focus{border-color:var(--focus);box-shadow:0 0 0 3px rgba(136,192,255,.3)}
.validation{font-size:13px;color:#ff9b9b;display:none}
.invalid .validation{display:block}
.invalid .input{border-color:#ff6b6b}

/* Footer */
.footer{border-top:1px solid var(--bats-border);color:#aeb3bb;padding:22px 0}
.small{font-size:13px}
@media (max-width:720px){
  .footer .hstack{flex-direction:column;gap:8px;align-items:flex-start}
}

/* Legal pages (privacy.html supplies its own .legal block) */