:root {
  --ink: #111;
  --paper: #fff;
  --muted: #666;
  --line: #ddd;
  --accent: #111;
  --ok-bg: #eef6ee;
  --ok-ink: #1d5d1d;
  --err-bg: #fbecec;
  --err-ink: #8c1d1d;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: #f5f5f4;
  line-height: 1.5;
}

a { color: var(--ink); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.9rem 1.4rem;
  background: var(--ink);
  color: var(--paper);
}
.topbar a { color: var(--paper); }
.brand a { font-weight: 700; letter-spacing: 0.18em; }
.brand .sub { margin-left: 0.7rem; color: #bbb; font-size: 0.85rem; letter-spacing: 0.05em; }
.topbar nav { display: flex; align-items: center; gap: 1.1rem; }
.topbar nav a { font-size: 0.92rem; }

main { max-width: 980px; margin: 1.6rem auto; padding: 0 1.2rem; }

.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 1.3rem 1.5rem;
  margin-bottom: 1.3rem;
}
.card.narrow { max-width: 420px; margin-left: auto; margin-right: auto; }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.3rem; }
@media (max-width: 760px) { .grid2 { grid-template-columns: 1fr; } }

h1 { font-size: 1.3rem; margin: 0 0 0.9rem; }
h2 { font-size: 1.05rem; margin: 1.2rem 0 0.6rem; }

label { display: block; margin: 0.7rem 0; font-size: 0.9rem; color: var(--muted); }
input[type=email], input[type=password], input[type=text], select {
  display: block;
  width: 100%;
  margin-top: 0.3rem;
  padding: 0.55rem 0.6rem;
  font-size: 1rem;
  border: 1px solid var(--line);
  border-radius: 3px;
  color: var(--ink);
  background: var(--paper);
}

button { font-family: inherit; cursor: pointer; }
.primary {
  margin-top: 0.5rem;
  padding: 0.6rem 1.2rem;
  font-size: 0.95rem;
  color: var(--paper);
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 3px;
}
.primary:hover { background: #000; }
button.link {
  background: none; border: none; color: inherit; padding: 0;
  font-size: 0.92rem; text-decoration: underline;
}
.btn {
  display: inline-block;
  padding: 0.5rem 0.9rem;
  margin: 0.3rem 0.4rem 0.3rem 0;
  border: 1px solid var(--ink);
  border-radius: 3px;
  background: var(--ink);
  color: var(--paper);
  font-size: 0.9rem;
}
.btn:hover { background: #000; text-decoration: none; }
.btn.ghost { background: var(--paper); color: var(--ink); }
.btn.ghost:hover { background: #f0f0ef; }
.mini { font-size: 0.8rem; color: var(--muted); margin-left: 0.5rem; }

.drop {
  display: block;
  border: 2px dashed var(--line);
  border-radius: 4px;
  padding: 1.6rem;
  text-align: center;
  color: var(--muted);
  cursor: pointer;
}
.drop.over { border-color: var(--ink); background: #fafafa; color: var(--ink); }
.drop input[type=file] { display: block; margin: 0 auto 0.7rem; }

.muted { color: var(--muted); font-size: 0.88rem; }
.error { background: var(--err-bg); color: var(--err-ink); padding: 0.6rem 0.8rem; border-radius: 3px; }
.ok { background: var(--ok-bg); color: var(--ok-ink); padding: 0.6rem 0.8rem; border-radius: 3px; }
.inline { display: inline; }
.row { display: flex; gap: 0.6rem; flex-wrap: wrap; align-items: center; }
.row input[type=email] { width: auto; flex: 1 1 220px; margin-top: 0; }
.row select { width: auto; }

ul.stats { list-style: none; padding: 0; }
ul.stats li { padding: 0.25rem 0; border-bottom: 1px solid #f0f0ef; }
ul.tree { list-style: none; padding: 0; }
ul.tree li { padding: 0.3rem 0; border-bottom: 1px solid #f4f4f3; }

table.list { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
table.list th, table.list td { text-align: left; padding: 0.35rem 0.5rem; border-bottom: 1px solid #f0f0ef; vertical-align: top; }
table.list th { color: var(--muted); font-weight: 600; }
table.list.small { font-size: 0.8rem; }

.crumbs { margin-bottom: 0.8rem; font-size: 0.92rem; }
.crumbs .sep { color: var(--muted); }
pre.md {
  background: #fafafa;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 1rem;
  overflow-x: auto;
  white-space: pre-wrap;
  word-wrap: break-word;
  font-size: 0.85rem;
}
code.break { word-break: break-all; }
.foot { max-width: 980px; margin: 2rem auto; padding: 0 1.2rem; color: var(--muted); font-size: 0.82rem; }