:root {
  --bg: #f4f6f8;
  --card: #ffffff;
  --ink: #1f2a33;
  --muted: #5b6b78;
  --accent: #1e7a3f;
  --accent2: #1565c0;
  --danger: #c0392b;
  --border: #dde4ea;
}

* { box-sizing: border-box; }

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

header, main, footer {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 16px;
}

header { padding-top: 28px; }
h1 { margin: 0 0 6px; font-size: 1.6rem; }
.sub { margin: 0 0 4px; color: var(--muted); }
.privacy { margin: 0 0 18px; font-size: 0.92rem; color: var(--accent); }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
  box-shadow: 0 1px 3px rgba(20, 40, 60, 0.06);
}

.drop {
  border: 2px dashed var(--border);
  border-radius: 10px;
  padding: 22px;
  text-align: center;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.drop:hover, .drop:focus, .drop.over {
  border-color: var(--accent2);
  background: #f0f6fd;
  outline: none;
}
.drop-small { padding: 12px; margin-top: 10px; }
.drop-icon { font-size: 2rem; }
.hint { color: var(--muted); font-size: 0.88rem; }
.picked { margin-top: 6px; font-weight: 600; color: var(--accent2); }

details { margin-top: 14px; }
summary { cursor: pointer; font-weight: 600; }

button {
  margin-top: 16px;
  width: 100%;
  padding: 13px;
  font-size: 1.05rem;
  font-weight: 700;
  color: #fff;
  background: var(--accent);
  border: 0;
  border-radius: 10px;
  cursor: pointer;
}
button:hover:not(:disabled) { filter: brightness(1.08); }
button:disabled { background: #9bb3a4; cursor: not-allowed; }

.status { margin-top: 10px; color: var(--muted); font-size: 0.92rem; min-height: 1.3em; }
.status.ready { color: var(--accent); }
.status.busy::before { content: "⏳ "; }

.error {
  margin-top: 12px;
  padding: 12px;
  border-radius: 8px;
  background: #fdf0ee;
  border: 1px solid #f0c4bd;
  color: var(--danger);
  white-space: pre-wrap;
}

.warn {
  margin-top: 12px;
  padding: 12px;
  border-radius: 8px;
  background: #fff8e6;
  border: 1px solid #f0dfae;
  color: #7a5c00;
  white-space: pre-wrap;
}

.downloads { display: flex; flex-wrap: wrap; gap: 10px; margin: 10px 0 4px; }
.downloads a {
  display: inline-block;
  padding: 9px 14px;
  border-radius: 8px;
  background: var(--accent2);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
}
.downloads a.alt { background: var(--accent); }
.downloads a.ghost { background: #eef2f6; color: var(--ink); border: 1px solid var(--border); }

img { max-width: 100%; border: 1px solid var(--border); border-radius: 8px; margin-top: 8px; }

table { border-collapse: collapse; width: 100%; margin-top: 8px; font-size: 0.9rem; }
td, th { border: 1px solid var(--border); padding: 5px 8px; text-align: left; }
td.ok { color: var(--accent); font-weight: 700; }
td.fail { color: var(--danger); font-weight: 700; }

pre {
  background: #f6f8fa;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px;
  overflow-x: auto;
  font-size: 0.85rem;
}

footer { color: var(--muted); font-size: 0.85rem; padding-bottom: 30px; }
code { background: #eef2f6; padding: 1px 5px; border-radius: 4px; }