webapp/src/style.css

:root {
  color-scheme: dark;
  font-family: system-ui, sans-serif;
  line-height: 1.5;
  font-weight: 400;
  color: #e5e7eb;
  background: #0f172a;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background:
    radial-gradient(circle at top, rgba(59, 130, 246, 0.18), transparent 35%),
    #0f172a;
}

button,
textarea {
  font: inherit;
}

#app {
  min-height: 100vh;
}

.app-shell {
  display: grid;
  place-items: center;
  min-height: 100vh;
  padding: 32px 16px;
}

.panel {
  width: min(840px, 100%);
  background: rgba(15, 23, 42, 0.88);
  border: 1px solid rgba(148, 163, 184, 0.2);
  border-radius: 20px;
  padding: 24px;
  box-shadow: 0 24px 80px rgba(15, 23, 42, 0.45);
}

h1 {
  margin: 0 0 12px;
  font-size: clamp(2rem, 4vw, 3rem);
}

.intro,
.muted {
  color: #94a3b8;
}

.field {
  display: grid;
  gap: 8px;
  margin: 20px 0;
}

.field span,
.status-box strong {
  color: #cbd5e1;
}

textarea {
  width: 100%;
  min-height: 160px;
  resize: vertical;
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.3);
  background: rgba(15, 23, 42, 0.7);
  color: #f8fafc;
  padding: 14px 16px;
}

.actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

button {
  border: 0;
  border-radius: 999px;
  padding: 12px 20px;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  color: #fff;
  cursor: pointer;
}

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

.status-box {
  display: grid;
  gap: 10px;
  margin-top: 16px;
  padding: 16px;
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(148, 163, 184, 0.16);
}

pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  color: #e2e8f0;
}

audio {
  width: 100%;
}