:root {
  color-scheme: light;
  --ink: #1c2830;
  --muted: #5c6b76;
  --line: #d5dee5;
  --paper: #f3f6f8;
  --card: #ffffff;
  --accent: #0f4c5c;
  --accent-ink: #ffffff;
  --ok: #1d6b45;
  --ok-bg: #e5f4ec;
  --bad: #8c2f2f;
  --bad-bg: #f8e8e8;
  --warn: #8a5a00;
  --warn-bg: #f8f1e3;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", system-ui, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.45;
}

.top, main {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
}

.top { padding: 36px 0 8px; }

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 { margin: 0 0 8px; font-size: 1.8rem; font-weight: 650; }

.lede { margin: 0; max-width: 62ch; color: var(--muted); }

main { padding: 20px 0 48px; display: grid; gap: 16px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 20px;
}

label {
  display: block;
  margin: 14px 0 6px;
  font-weight: 650;
}

label:first-child { margin-top: 0; }

select, input[type="file"], button {
  font: inherit;
}

select {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}

.file-picker {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.file-picker input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.file-button {
  margin: 0;
  padding: 6px 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  font-weight: 650;
  cursor: pointer;
}

#file-name {
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.note { margin: 8px 0 0; color: var(--muted); font-size: 0.92rem; }

button {
  margin-top: 18px;
  border: 0;
  border-radius: 8px;
  padding: 10px 16px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 650;
  cursor: pointer;
}

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

.actions button { margin-top: 0; }

button:focus-visible, select:focus-visible, input:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.result-head, .actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

h2 { margin: 0; font-size: 1.25rem; }
h3 { margin: 22px 0 8px; font-size: 0.95rem; }

.filename {
  margin: 4px 0 0;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.95rem;
}

.badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
}

.badge.ok { color: var(--ok); background: var(--ok-bg); }
.badge.bad { color: var(--bad); background: var(--bad-bg); }

.facts {
  display: grid;
  grid-template-columns: minmax(140px, 240px) 1fr;
  gap: 4px 12px;
  margin: 0;
}

.facts dt { color: var(--muted); }
.facts dd { margin: 0; }

.issues { margin: 0; padding-left: 1.1rem; }
.issues li { margin: 4px 0; }
.issues .erro { color: var(--bad); }
.issues .aviso { color: var(--warn); }
.issues .quiet { color: var(--muted); list-style: none; margin-left: -1.1rem; }

.message.error { color: var(--bad); }

pre {
  margin: 0;
  max-height: 420px;
  overflow: auto;
  padding: 12px;
  border-radius: 8px;
  background: #102027;
  color: #e7eef2;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.82rem;
  line-height: 1.4;
}

@media (max-width: 640px) {
  .result-head, .actions { flex-direction: column; align-items: flex-start; }
  .facts { grid-template-columns: 1fr; }
}