:root{
  --bg:#0f1724;
  --card:#0b1220;
  --accent:#06b6d4;
  --muted:#94a3b8;
  --text:#e6eef6;
}
*{box-sizing:border-box;font-family:Inter,system-ui,Arial,Helvetica,sans-serif}
body{
  margin:0;background:linear-gradient(180deg,#071226 0%, #0f1724 100%);color:var(--text);
  min-height:100vh;display:flex;align-items:center;justify-content:center;
}
.container{width:100%;max-width:420px;padding:24px;text-align:center}
h1{margin:0 0 18px;font-size:28px;letter-spacing:0.4px}
.card{background:var(--card);padding:20px;border-radius:12px;box-shadow:0 8px 30px rgba(2,6,23,0.6)}
.tabs{display:flex;gap:8px;justify-content:center;margin-bottom:12px}
.tabs button{padding:8px 14px;border-radius:8px;border:1px solid transparent;background:transparent;color:var(--muted);cursor:pointer}
.tabs button.active{background:linear-gradient(90deg, rgba(6,182,212,0.12), rgba(6,182,212,0.06));color:var(--accent);border-color:rgba(6,182,212,0.12)}

.form{display:flex;flex-direction:column;gap:10px}
.form input{padding:10px;border-radius:8px;border:1px solid rgba(255,255,255,0.06);background:transparent;color:var(--text)}
.form button{padding:10px;border-radius:8px;border:0;background:linear-gradient(90deg,var(--accent),#0284c7);color:#022;cursor:pointer;font-weight:600}

.separator{text-align:center;margin:12px 0;color:var(--muted)}
.google-btn{width:100%;padding:10px;border-radius:8px;border:1px solid rgba(255,255,255,0.06);background:transparent;color:var(--text);cursor:pointer}

.hidden{display:none}
.message{margin-top:10px;color:#ffd;min-height:20px}
footer{margin-top:14px;color:var(--muted);font-size:13px}
code{background:rgba(255,255,255,0.03);padding:3px 6px;border-radius:6px;color:var(--muted)}