:root {
  --ink: #23303a;
  --ink-soft: #55636e;
  --line: #d7dee4;
  --bg: #f4f6f8;
  --card: #ffffff;
  --accent: #2f6f4f;      /* grounded green */
  --accent-ink: #ffffff;
  --warn-bg: #fdf6e3;
  --warn-line: #e6d3a3;
  --err: #b23b3b;
  --ok: #2f6f4f;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); line-height: 1.55; }

header.site {
  background: var(--card);
  border-bottom: 1px solid var(--line);
  padding: 0.85rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 1rem;
}
header.site .wordmark { font-weight: 700; color: var(--ink); text-decoration: none; letter-spacing: .01em; }
header.site .tagline { color: var(--ink-soft); font-size: .85rem; font-style: italic; }
header.site nav { margin-left: auto; display: flex; align-items: baseline; gap: 1rem; }
header.site nav a { color: var(--accent); text-decoration: none; }

.nudge {
  background: var(--warn-bg);
  border-bottom: 1px solid var(--warn-line);
  padding: .6rem 1.25rem;
  font-size: .9rem;
}
.nudge a { color: var(--accent); }

main { max-width: 40rem; margin: 2rem auto; padding: 0 1.25rem; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

h1 { font-size: 1.4rem; margin: 0 0 1rem; }
h2 { font-size: 1.1rem; margin: 1.4rem 0 .5rem; }

label { display: block; font-weight: 600; margin: .9rem 0 .3rem; font-size: .9rem; }
input[type=text], input[type=email], input[type=password], input[type=date], textarea, select {
  width: 100%; padding: .55rem .7rem; border: 1px solid var(--line);
  border-radius: 8px; font: inherit;
}
input:focus, textarea:focus, select:focus { outline: 2px solid var(--accent); border-color: var(--accent); }

button, .btn {
  display: inline-block; margin-top: 1rem; padding: .55rem 1.1rem;
  background: var(--accent); color: var(--accent-ink); border: none;
  border-radius: 8px; font: inherit; font-weight: 600; cursor: pointer; text-decoration: none;
}
button.secondary, .btn.secondary { background: transparent; color: var(--accent); border: 1px solid var(--line); }
button.danger, .btn.danger { background: var(--err); }
button.linklike {
  margin: 0; padding: 0; background: none; border: none; color: var(--accent);
  font: inherit; cursor: pointer;
}
form.inline { display: inline; }

.flash { padding: .7rem .9rem; border-radius: 8px; margin-bottom: 1rem; font-size: .92rem; }
.flash.err { background: #fdeaea; color: var(--err); border: 1px solid #e7b3b3; }
.flash.ok  { background: #e9f4ee; color: var(--ok); border: 1px solid #a9d3bd; }

.muted { color: var(--ink-soft); }
.codes { font-family: ui-monospace, Menlo, monospace; font-size: 1.05rem; }
.codes li { margin: .2rem 0; }
.qr { display: block; margin: 1rem auto; width: 220px; height: 220px; }
.secret { font-family: ui-monospace, Menlo, monospace; background: #eef2f4; padding: .3rem .5rem; border-radius: 6px; word-break: break-all; }

table { width: 100%; border-collapse: collapse; font-size: .92rem; }
th, td { text-align: left; padding: .5rem .4rem; border-bottom: 1px solid var(--line); }

.disclosure {
  background: #eef2f4; border: 1px solid var(--line); border-radius: 8px;
  padding: 1rem; font-size: .92rem; color: var(--ink-soft);
}

footer.site {
  max-width: 40rem; margin: 2rem auto 3rem; padding: 1rem 1.25rem 0;
  border-top: 1px solid var(--line); color: var(--ink-soft); font-size: .82rem;
}