:root {
  color-scheme: light;
  --bg: #f3f6fb;
  --panel: #ffffff;
  --ink: #1f2937;
  --muted: #6b7280;
  --accent: #0f766e;
  --accent-strong: #115e59;
  --border: #d1d5db;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "IBM Plex Sans", "Segoe UI", sans-serif;
  background: radial-gradient(circle at top right, #dbeafe, var(--bg));
  color: var(--ink);
}

.app {
  max-width: 760px;
  margin: 2rem auto;
  padding: 0 1rem 2rem;
}

.brand {
  margin-bottom: 1.25rem;
  padding: 1.25rem;
  border-radius: 14px;
  background:
    linear-gradient(120deg, rgba(15, 118, 110, 0.14), rgba(2, 132, 199, 0.16)),
    #ffffff;
  border: 1px solid #bfdbfe;
}

.brand-kicker {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  /*text-transform: uppercase;*/
  color: #0369a1;
  font-weight: 700;
}

.brand-name {
  margin: 0.25rem 0 0;
  font-size: clamp(2rem, 5vw, 2.8rem);
  line-height: 1;
  letter-spacing: -0.03em;
  color: #0f172a;
}

.subtitle {
  color: #334155;
  margin: 0.55rem 0 0;
}

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

label {
  display: block;
  margin-top: 0.75rem;
  margin-bottom: 0.35rem;
  font-weight: 600;
}

input[type="file"],
input[type="text"],
select {
  width: 100%;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 500;
}

.checkbox input[type="checkbox"] {
  width: auto;
}

.file-list {
  margin: 0.5rem 0 0.25rem 1.1rem;
  color: var(--muted);
}

button {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border: 0;
  border-radius: 10px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  background: var(--accent-strong);
}

button:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

pre {
  white-space: pre-wrap;
  background: #f8fafc;
  border: 1px solid var(--border);
  border-radius: 8px;
  min-height: 80px;
  padding: 0.75rem;
  margin: 0;
}

.download {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.6rem 0.9rem;
  border-radius: 8px;
  background: #111827;
  color: #fff;
  text-decoration: none;
}

.download.disabled {
  pointer-events: none;
  opacity: 0.5;
}

.info p {
  margin: 0.6rem 0 0;
  color: #334155;
}

.info a {
  color: #0369a1;
  font-weight: 600;
}

@media (max-width: 640px) {
  .app {
    margin-top: 1rem;
  }
}