:root {
  --bg: #0b1628;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --teal: #2dd4bf;
  --border: rgba(148, 163, 184, 0.22);
  --danger: #fca5a5;
  --success: #6ee7b7;
  --font: "IBM Plex Sans", system-ui, sans-serif;
  --serif: "IBM Plex Serif", Georgia, serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.5rem;
  font-family: var(--font);
  color: var(--text);
  background:
    radial-gradient(700px 360px at 70% 0%, rgba(45, 212, 191, 0.08), transparent 55%),
    var(--bg);
  -webkit-font-smoothing: antialiased;
}

.sheet {
  width: min(100%, 32rem);
  text-align: left;
}

.wordmark {
  margin: 0 0 1.75rem;
  font-family: var(--serif);
  font-size: clamp(2.25rem, 6vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--text);
}

h1 {
  margin: 0 0 1.75rem;
  font-family: var(--serif);
  font-size: clamp(1.55rem, 4vw, 1.9rem);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.form {
  margin: 0;
}

.row {
  display: grid;
  gap: 0.6rem;
}

input {
  width: 100%;
  min-height: 2.75rem;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  font: inherit;
}

input::placeholder {
  color: #64748b;
}

input:focus {
  outline: none;
  border-color: rgba(45, 212, 191, 0.55);
  box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.12);
}

button {
  min-height: 2.75rem;
  padding: 0.7rem 1.2rem;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(180deg, #2dd4bf, #14b8a6);
  color: #042f2e;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  filter: brightness(1.05);
}

button:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

button:focus-visible,
input:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

.status {
  min-height: 1.35rem;
  margin: 0.75rem 0 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.status.is-error {
  color: var(--danger);
}

.status.is-success {
  color: var(--success);
}

.foot {
  margin: 2.25rem 0 0;
  color: #64748b;
  font-size: 0.8rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (min-width: 520px) {
  .row {
    grid-template-columns: 1fr auto;
  }
}