* {
  margin: 0;
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  display: grid;
  place-items: center;
  background: #0b0d11;
  color: #e7e7ea;
  font-family:
    system-ui,
    -apple-system,
    "Segoe UI",
    Roboto,
    sans-serif;
  -webkit-font-smoothing: antialiased;
}

.card {
  width: min(24rem, calc(100vw - 3rem));
  padding: 2.5rem 2rem;
  background: #14161b;
  border: 1px solid #26292f;
  border-radius: 14px;
  text-align: center;
}

.logo {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  margin-bottom: 1rem;
}

h1 {
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.sub {
  margin-top: 0.4rem;
  color: #9a9aa3;
  font-size: 0.9rem;
}

form {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 1.75rem;
}

input {
  padding: 0.65rem 0.8rem;
  background: #0b0d11;
  border: 1px solid #2e3239;
  border-radius: 8px;
  color: inherit;
  font-size: 0.95rem;
  outline: none;
}

input:focus {
  border-color: #f4693a;
}

button {
  padding: 0.65rem 0.8rem;
  background: #f4693a;
  border: none;
  border-radius: 8px;
  color: #fff;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
}

button:disabled {
  opacity: 0.6;
  cursor: default;
}

.err {
  margin-top: 0.9rem;
  color: #ef6b6b;
  font-size: 0.85rem;
}

.hint {
  margin-top: 1.5rem;
  color: #6d6d76;
  font-size: 0.78rem;
  line-height: 1.5;
}