:root {
  --bg: #f5f6f8; --surface: #ffffff; --text: #16181d; --muted: #646b78; --border: #dde1e7;
  --accent: #2f5bd3; --accent-text: #ffffff; --danger: #c0392b; --ok: #1e7f4f; --warn: #b26a00;
  --msg-ok: #e7f5ed; --msg-err: #fdecea; --msg-warn: #fff4e0; --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111317; --surface: #1a1d23; --text: #e8eaee; --muted: #9aa1ad; --border: #2c3139;
    --accent: #6d8ff0; --accent-text: #0d1220; --danger: #ef6b5e; --ok: #4cc38a; --warn: #f0a83c;
    --msg-ok: #15301f; --msg-err: #3a1715; --msg-warn: #352611;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--bg); color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
a { color: var(--accent); }
h1 { font-size: 1.4rem; margin: 0 0 1rem; } h2 { font-size: 1.1rem; margin: 0 0 .8rem; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .9em; }
.muted { color: var(--muted); } .small { font-size: .85em; }
.ok { color: var(--ok); font-weight: 600; } .warn { color: var(--warn); font-weight: 600; }

.topbar { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1.25rem; padding: .75rem 16px;
  background: var(--surface); border-bottom: 1px solid var(--border); }
.brand { font-weight: 700; color: var(--text); text-decoration: none; }
.topbar nav { display: flex; flex-wrap: wrap; gap: .25rem .9rem; flex: 1; }
.topbar nav a { color: var(--text); text-decoration: none; }
.topbar nav a:hover { color: var(--accent); }
.who { display: flex; align-items: center; gap: .75rem; font-size: .9em; }
.who a { color: var(--muted); text-decoration: none; }
@media (max-width: 720px) {
  .topbar nav { order: 3; flex-basis: 100%; overflow-x: auto; white-space: nowrap; flex-wrap: nowrap; padding-bottom: .25rem; }
  .who { margin-left: auto; }
}

.page { max-width: 1200px; margin: 0 auto; padding: 1.25rem 16px 3rem; }
.auth { min-height: 100vh; display: flex; flex-direction: column; justify-content: center; padding: 1rem 16px; }
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.25rem; margin-bottom: 1rem; min-width: 0; }
.narrow { max-width: 420px; width: 100%; margin: 0 auto 1rem; }
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 420px), 1fr)); gap: 1rem; }
.head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: .75rem; margin-bottom: 1rem; }
.head h1 { margin: 0; }
.row { display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; margin-bottom: .75rem; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1rem; margin-bottom: 1rem; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; }
.stat span { display: block; color: var(--muted); font-size: .85em; }
.stat strong { display: block; font-size: 1.5rem; font-variant-numeric: tabular-nums; }
.stat small { color: var(--muted); }

.field { display: block; margin-bottom: .9rem; }
.field > span { display: block; font-weight: 600; margin-bottom: .3rem; font-size: .92em; }
.field small { display: block; color: var(--muted); margin-top: .25rem; }
.field em { display: block; color: var(--danger); font-style: normal; font-size: .9em; margin-top: .25rem; }
.has-error input, .has-error textarea, .has-error select { border-color: var(--danger); }
input, select, textarea { width: 100%; padding: .55rem .7rem; font: inherit; color: var(--text);
  background: var(--bg); border: 1px solid var(--border); border-radius: 8px; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.monthpick { display: flex; gap: .5rem; } .monthpick input { width: auto; }
.row select { width: auto; }

button, .button { display: inline-block; padding: .55rem 1rem; font: inherit; font-weight: 600; cursor: pointer;
  border-radius: 8px; border: 1px solid var(--border); background: var(--surface); color: var(--text); text-decoration: none; }
button:hover, .button:hover { border-color: var(--accent); }
.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.danger { color: var(--danger); border-color: var(--danger); background: transparent; }
button.small { padding: .25rem .6rem; font-size: .85em; }
.wide { width: 100%; }
button.link { background: none; border: 0; padding: 0; color: var(--muted); font-weight: 400; }
form + form { margin-top: .6rem; }

.tablewrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .92em; }
th, td { text-align: left; padding: .5rem .6rem; border-bottom: 1px solid var(--border); vertical-align: middle; white-space: nowrap; }
th { color: var(--muted); font-weight: 600; font-size: .85em; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }
td form { margin: 0; }

.msg { padding: .7rem 1rem; border-radius: 8px; margin-bottom: 1rem; background: var(--msg-ok); }
.msg.error { background: var(--msg-err); } .msg.warning { background: var(--msg-warn); }
.steps { padding-left: 1.2rem; } .steps li { margin-bottom: .3rem; }
.qr { background: #fff; padding: 12px; border-radius: 8px; width: fit-content; margin: 1rem auto; }
.qr svg { display: block; width: 220px; height: 220px; }
.secret { display: block; word-break: break-all; padding: .5rem; background: var(--bg); border-radius: 6px; margin: .5rem 0 1rem; }
details { margin-bottom: 1rem; }
.codes { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: .5rem; }
.codes code { display: block; padding: .4rem; text-align: center; background: var(--bg); border-radius: 6px; font-size: 1.05em; }
.pager { display: flex; gap: 1rem; justify-content: center; margin-top: 1rem; }
.tag { display: inline-block; padding: .1rem .45rem; border-radius: 6px; font-size: .8em; font-weight: 700; background: var(--bg); border: 1px solid var(--border); }
.monthpick select { width: auto; }
.exports { margin: 0; }