*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: #0a0a0a;
  color: #fff;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-image: radial-gradient(ellipse at top, #1a1040 0%, #0a0a0a 70%);
}
.auth-wrap { width: 100%; max-width: 420px; padding: 24px 16px; }
.logo {
  font-size: 24px; font-weight: 800; letter-spacing: -1px; color: #fff;
  text-decoration: none; display: block; text-align: center; margin-bottom: 32px;
}
.logo span { color: #6366f1; }
.auth-card {
  background: #111; border: 1px solid #1a1a1a; border-radius: 16px; padding: 36px 32px;
}
.auth-card h1 { font-size: 22px; font-weight: 700; letter-spacing: -0.5px; margin-bottom: 6px; }
.auth-card p.sub { color: #999; font-size: 14px; margin-bottom: 28px; }
.flash { padding: 12px 16px; border-radius: 8px; font-size: 14px; margin-bottom: 20px; }
.flash-error { background: rgba(239,68,68,0.12); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; }
.flash-success { background: rgba(74,222,128,0.1); border: 1px solid rgba(74,222,128,0.25); color: #86efac; }
.form-group { margin-bottom: 16px; }
label { display: block; font-size: 13px; font-weight: 500; color: #ccc; margin-bottom: 6px; }
input[type="text"], input[type="email"], input[type="password"], input[type="tel"] {
  width: 100%; background: #1a1a1a; border: 1px solid #2a2a2a; border-radius: 8px;
  color: #fff; font-size: 15px; padding: 12px 14px; outline: none;
  transition: border-color 0.2s; font-family: inherit;
}
input:focus { border-color: #6366f1; }
input::placeholder { color: #555; }
.btn {
  width: 100%; background: #6366f1; color: #fff; border: none; border-radius: 8px;
  font-size: 15px; font-weight: 600; padding: 13px 24px; cursor: pointer;
  margin-top: 8px; transition: background 0.2s; font-family: inherit;
}
.btn:hover { background: #5558e8; }
.auth-footer { text-align: center; margin-top: 24px; font-size: 14px; color: #666; }
.auth-footer a { color: #a5b4fc; text-decoration: none; }
.auth-footer a:hover { color: #6366f1; }
.divider { border: none; border-top: 1px solid #1a1a1a; margin: 16px 0; }
.opt { color: #555; font-size: 12px; }