:root {
  --bg: #0f1419;
  --card: #1a2332;
  --text: #e7ecf3;
  --muted: #8b9bb4;
  --accent: #3d8bfd;
  --accent-hover: #5ca0ff;
  --border: #2a3a52;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Pretendard", "Apple SD Gothic Neo", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem 3rem;
}

header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.75rem;
}

.subtitle {
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

label {
  display: block;
  font-size: 0.875rem;
  color: var(--muted);
  margin-bottom: 0.35rem;
}

textarea,
input,
select {
  width: 100%;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0d1218;
  color: var(--text);
  font-size: 1rem;
}

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

.row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1rem;
}

@media (max-width: 600px) {
  .row {
    grid-template-columns: 1fr;
  }
}

.field {
  margin-bottom: 1rem;
}

button {
  width: 100%;
  padding: 0.85rem;
  border: none;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

button:hover:not(:disabled) {
  background: var(--accent-hover);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.status {
  margin-top: 0.75rem;
  font-size: 0.9rem;
  color: var(--muted);
  min-height: 1.25rem;
}

footer {
  font-size: 0.8rem;
  color: var(--muted);
}

#resultSection h2 {
  margin-top: 0;
  font-size: 1.1rem;
}

audio {
  width: 100%;
  margin-bottom: 0.5rem;
}

a {
  color: var(--accent);
}