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

html, body {
  height: 100%;
}

body {
  background-color: #fbfbfb;
  color: #111111;
  font-family: 'Courier New', Courier, monospace;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a {
  color: #111111;
  text-decoration: none;
}

/* Header */
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  border-bottom: 1px solid #111111;
}

.site-header .logo-text {
  font-weight: bold;
  letter-spacing: 0.1em;
}

.site-header .nav-link {
  font-weight: bold;
  letter-spacing: 0.05em;
  border: 1px solid #111111;
  padding: 0.5rem 1rem;
  white-space: nowrap;
}

.site-header .nav-link:hover {
  background-color: #111111;
  color: #fbfbfb;
}

/* Split screen */
.split-content {
  display: flex;
  flex: 1;
  width: 100%;
}

.split-column {
  width: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 2rem;
}

.record-column {
  border-right: 1px solid #111111;
}

.spinning-record {
  width: min(320px, 60vw);
  height: min(320px, 60vw);
  animation: spin 6s linear infinite;
}

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.text-column p {
  font-size: 1.1rem;
  line-height: 1.8;
  max-width: 32ch;
}

.text-column p + p {
  margin-top: 1rem;
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 1.5rem 1rem;
  font-size: 0.75rem;
  color: #777777;
  border-top: 1px solid #e0e0e0;
}

/* Submission page */
.doc-content {
  flex: 1;
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.doc-content h1 {
  font-size: 1.4rem;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid #111111;
  padding-bottom: 0.75rem;
}

.doc-content h2 {
  font-size: 1rem;
  letter-spacing: 0.05em;
  margin: 2.5rem 0 1rem;
}

#step2 {
  margin-top: 3rem;
}

.lede {
  margin-bottom: 2rem;
  line-height: 1.6;
}

.step-note,
.step-copy {
  margin-bottom: 1.2rem;
  line-height: 1.6;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.field label {
  font-size: 0.85rem;
  letter-spacing: 0.03em;
}

input,
select,
textarea,
button {
  font-family: 'Courier New', Courier, monospace;
  font-size: 1rem;
  background-color: #fbfbfb;
  color: #111111;
  border: 1px solid #111111;
  padding: 0.6rem 0.7rem;
  border-radius: 0;
  width: 100%;
}

textarea {
  resize: vertical;
  min-height: 120px;
}

input:focus,
select:focus,
textarea:focus,
button:focus {
  outline: 2px solid #111111;
  outline-offset: 1px;
}

.submit-btn {
  font-weight: bold;
  letter-spacing: 0.05em;
  cursor: pointer;
  width: auto;
  align-self: flex-start;
  padding: 0.7rem 1.4rem;
}

.submit-btn:hover {
  background-color: #111111;
  color: #fbfbfb;
}

.success-text {
  margin-top: 0.75rem;
  font-weight: bold;
  letter-spacing: 0.03em;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.success-text.visible {
  opacity: 1;
}

.error-box {
  margin-top: 1rem;
  padding: 1rem 1.2rem;
  font-weight: bold;
  letter-spacing: 0.03em;
  line-height: 1.5;
  background-color: #fbfbfb;
  color: #111111;
  border: 1px solid #111111;
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.error-box.visible {
  opacity: 1;
  transform: translateY(0);
}

.dropbox-btn {
  display: block;
  text-align: center;
  font-weight: bold;
  letter-spacing: 0.05em;
  border: 1px solid #111111;
  background-color: #111111;
  color: #fbfbfb;
  padding: 1rem;
  margin-top: 1rem;
}

.dropbox-btn:hover {
  background-color: #fbfbfb;
  color: #111111;
}

/* Responsive */
@media (max-width: 768px) {
  .split-content {
    flex-direction: column;
  }

  .split-column {
    width: 100%;
    padding: 2.5rem 1.5rem;
  }

  .record-column {
    border-right: none;
    border-bottom: 1px solid #111111;
  }

  .site-header {
    padding: 1.25rem 1.25rem;
  }

  .spinning-record {
    width: 50vw;
    height: 50vw;
  }
}