:root {
  --blue: #28589c;
  --blue-hover: #1f4578;
  --gray: #444444;
  --gray-muted: #5c6570;
  --bg: #ffffff;
  --surface: #ffffff;
  --border: rgba(0, 0, 0, 0.12);
  --text: #1a1f26;
  --danger: #c62828;
}

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Source Sans 3", system-ui, -apple-system, Segoe UI, sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 600px at 50% -15%, rgba(40, 88, 156, 0.06), transparent 50%),
    var(--bg);
  line-height: 1.5;
}

.page {
  max-width: 520px;
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 2.5rem) 1.25rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.header {
  display: flex;
  justify-content: center;
}

.logo-link {
  display: inline-flex;
  line-height: 0;
  text-decoration: none;
  border-radius: 10px;
}

.logo-link:focus-visible {
  outline: 2px solid var(--blue);
  outline-offset: 4px;
}

.logo {
  width: min(100%, 440px);
  height: auto;
  display: block;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: clamp(1.25rem, 3vw, 2rem);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.06);
}

.title {
  margin: 0 0 0.75rem;
  font-family: "Libre Baskerville", Georgia, serif;
  font-weight: 700;
  font-size: clamp(1.35rem, 4vw, 1.65rem);
  letter-spacing: 0.02em;
  color: var(--blue);
  text-align: center;
}

.lede {
  margin: 0 0 1.5rem;
  color: var(--gray-muted);
  font-size: 0.95rem;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.fields {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

@media (min-width: 480px) {
  .fields {
    flex-direction: row;
    gap: 1rem;
  }

  .field {
    flex: 1;
  }
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray-muted);
}

input[type="text"] {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #fafafa;
  color: var(--text);
  font: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

input[type="text"]::placeholder {
  color: rgba(26, 31, 38, 0.38);
}

input[type="text"]:focus {
  outline: none;
  border-color: rgba(40, 88, 156, 0.65);
  box-shadow: 0 0 0 3px rgba(40, 88, 156, 0.18);
}

.message {
  margin: 0;
  min-height: 1.25rem;
  font-size: 0.9rem;
}

.message[data-tone="error"] {
  color: var(--danger);
}

.message[data-tone="success"] {
  color: #2e7d32;
}

.submit {
  appearance: none;
  border: none;
  border-radius: 10px;
  padding: 0.85rem 1.25rem;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  background: var(--blue);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: background 0.15s ease, transform 0.08s ease;
}

.submit:hover:not(:disabled) {
  background: var(--blue-hover);
}

.submit:active:not(:disabled) {
  transform: translateY(1px);
}

.submit:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.submit-spinner {
  width: 1.1rem;
  height: 1.1rem;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.submit-spinner[hidden] {
  display: none;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.footer {
  text-align: center;
}

.footer p {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gray);
}