:root {
  --bg: #fafaf7;
  --card: #ffffff;
  --ink: #14161a;
  --muted: #6b7280;
  --line: #e5e7eb;
  --accent: #2563eb;
  --accent-ink: #ffffff;
  --error-bg: #fef2f2;
  --error-ink: #991b1b;
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--ink);
}
header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--line);
  background: var(--card);
}
.brand {
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  color: var(--ink);
}
.user { margin-left: auto; color: var(--muted); }
.inline { display: inline; margin: 0; }
button.link {
  background: none; border: 0; padding: 0;
  color: var(--accent); cursor: pointer; font: inherit;
  text-decoration: underline;
}
main { max-width: 640px; margin: 2rem auto; padding: 0 1.5rem; }
.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.75rem 1.5rem;
}
h1 { margin: 0 0 0.5rem; }
.muted { color: var(--muted); }
.muted.small { font-size: 0.9rem; }
.or {
  text-align: center;
  color: var(--muted);
  margin: 0.75rem 0;
}
label {
  display: block;
  margin: 0.75rem 0;
  font-weight: 500;
}
input[type="text"], input[type="password"], input[type="url"], input[type="file"] {
  display: block;
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 8px;
  font: inherit;
  background: var(--card);
}
input[type="text"]:focus, input[type="password"]:focus, input[type="url"]:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}
fieldset.lang {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.5rem 0.9rem 0.65rem;
  margin: 0.75rem 0;
}
fieldset.lang legend { padding: 0 0.4rem; color: var(--muted); font-size: 0.9rem; }
.radio {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin: 0 1rem 0 0;
  font-weight: 400;
}
button[type="submit"], .btn {
  display: inline-block;
  margin-top: 0.75rem;
  padding: 0.6rem 1.1rem;
  background: var(--accent);
  color: var(--accent-ink);
  border: 0;
  border-radius: 8px;
  font: 600 1rem inherit;
  cursor: pointer;
  text-decoration: none;
}
.btn.secondary {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
  font-weight: 500;
}
.downloads {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin: 1rem 0 0.5rem;
}
.error {
  background: var(--error-bg);
  color: var(--error-ink);
  padding: 0.75rem 1rem;
  border-radius: 8px;
  margin: 0.75rem 0;
}
footer {
  text-align: center;
  color: var(--muted);
  padding: 2rem 1rem 3rem;
  font-size: 0.9rem;
}
footer a { color: inherit; }
code { background: #f1f5f9; padding: 0.1rem 0.35rem; border-radius: 4px; font-size: 0.92em; }