* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  background: #0a0a0a; color: #fff;
  min-height: 100vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  font-family: 'Rubik', sans-serif;
  padding: 40px 20px;
}
.card {
  width: 100%; max-width: 420px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1);
  padding: 36px 32px;
}
h2 {
  font-size: 1.3rem; font-weight: 600;
  letter-spacing: .04em; margin-bottom: 28px;
}
label {
  display: block;
  font-size: .72rem; letter-spacing: .1em;
  color: rgba(255,255,255,.45);
  margin-bottom: 6px; margin-top: 18px;
  text-transform: uppercase;
}
label:first-of-type { margin-top: 0; }
input {
  width: 100%;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  color: #fff;
  padding: 10px 12px;
  font-family: 'Rubik', sans-serif;
  font-size: .88rem;
  outline: none;
  transition: border-color .2s;
}
input:focus { border-color: rgba(255,255,255,.4); }
textarea {
  width: 100%;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  color: #fff;
  padding: 10px 12px;
  font-family: 'Rubik', sans-serif;
  font-size: .88rem;
  outline: none;
  resize: vertical;
  min-height: 70px;
  transition: border-color .2s;
}
textarea:focus { border-color: rgba(255,255,255,.4); }
button[type=submit] {
  margin-top: 26px;
  width: 100%;
  background: #fff; color: #000;
  border: none; cursor: pointer;
  padding: 11px;
  font-family: 'Rubik', sans-serif;
  font-weight: 600; font-size: .88rem;
  letter-spacing: .06em;
  transition: background .2s;
}
button[type=submit]:hover { background: rgba(255,255,255,.85); }
.error {
  background: rgba(255,60,60,.12);
  border: 1px solid rgba(255,60,60,.3);
  color: rgba(255,130,130,.9);
  padding: 10px 14px;
  font-size: .8rem;
  letter-spacing: .03em;
  margin-bottom: 20px;
}
.success {
  background: rgba(60,255,130,.1);
  border: 1px solid rgba(60,255,130,.25);
  color: rgba(130,255,180,.9);
  padding: 10px 14px;
  font-size: .8rem;
  letter-spacing: .03em;
  margin-bottom: 20px;
}
.footer-link {
  margin-top: 18px;
  font-size: .75rem;
  color: rgba(255,255,255,.3);
  letter-spacing: .04em;
}
.footer-link a { color: rgba(255,255,255,.55); text-decoration: none; }
.footer-link a:hover { color: #fff; }
.hint {
  font-size: .72rem;
  color: rgba(255,255,255,.28);
  margin-top: 5px;
  letter-spacing: .03em;
}