:root {
  --bg: #f7f9fb;
  --card: #ffffff;
  --accent: #1a73e8;
  --muted: #6b7280;
  --shadow: 0 6px 18px rgba(23, 31, 58, 0.06);
  --radius: 12px;
}
body {
  margin: 0;
  font-family: Inter, system-ui, Segoe UI, Arial;
  background: var(--bg);
  color: #0f172a;
}
.container {
  max-width: 840px;
  margin: 36px auto;
  padding: 18px;
}
header h1 {
  margin: 0;
  font-size: 22px;
  color: var(--accent);
}
.muted {
  color: var(--muted);
  font-size: 13px;
  margin-top: 6px;
}
.card {
  background: var(--card);
  padding: 16px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-top: 16px;
}
label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
}
input[type="text"],
input[type="file"],
input {
  width: 100%;
  padding: 10px;
  margin-top: 6px;
  border-radius: 8px;
  border: 1px solid #e6eef8;
  box-sizing: border-box;
}
.row {
  display: flex;
  gap: 10px;
  margin-top: 8px;
}
button {
  padding: 10px 14px;
  border-radius: 8px;
  border: 0;
  cursor: pointer;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
}
button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}
.status {
  margin-top: 12px;
  font-weight: 600;
}
pre {
  background: #f3f6fb;
  padding: 12px;
  border-radius: 8px;
  overflow: auto;
}
footer {
  margin-top: 26px;
  font-size: 13px;
  text-align: center;
}
#tokenBox {
  background: #f9fafb;
  padding: 10px;
  border-radius: 8px;
}