:root {
  --bg: #f5f6f8; --panel: #ffffff; --ink: #1c2333; --muted: #67708a;
  --line: #e3e6ee; --accent: #2456d6; --accent-ink: #ffffff;
  --danger: #b42318; --ok: #067647; --warn: #b54708;
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 15px/1.5 -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar { display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; padding: .65rem 1.25rem; background: var(--panel);
  border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 5; }
.brand { font-size: 1.15rem; font-weight: 700; color: var(--ink); letter-spacing: -.02em; }
.brand span { color: var(--accent); }
.topbar nav { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.inline-form { display: inline; }
.linklike { background: none; border: 0; color: var(--muted); cursor: pointer;
  font: inherit; padding: 0; }
.linklike:hover { color: var(--ink); }

main { max-width: 1080px; margin: 1.25rem auto 4rem; padding: 0 1rem; }

.flash { padding: .6rem .9rem; border-radius: 8px; margin-bottom: .75rem;
  border: 1px solid var(--line); background: var(--panel); }
.flash-success { border-color: #abefc6; background: #ecfdf3; color: var(--ok); }
.flash-error { border-color: #fecdca; background: #fef3f2; color: var(--danger); }
.flash-warning { border-color: #fedf89; background: #fffaeb; color: var(--warn); }
.flash-info { border-color: #b2ccff; background: #eff4ff; color: var(--accent); }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: 12px;
  padding: 1.1rem 1.25rem; margin-bottom: 1rem; }
.panel h2, .panel h3 { margin-top: 0; }
.page-head { display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap; margin-bottom: .75rem; }
.page-head h1 { margin: 0; font-size: 1.35rem; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }

.btn { display: inline-block; padding: .45rem .9rem; border-radius: 8px;
  border: 1px solid var(--line); background: var(--panel); color: var(--ink);
  cursor: pointer; font: inherit; font-weight: 600; }
.btn:hover { border-color: var(--accent); text-decoration: none; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-danger { background: var(--danger); border-color: var(--danger); color: #fff; }
.btn-send { background: var(--ok); border-color: var(--ok); color: #fff; font-size: 1.05rem;
  padding: .6rem 1.2rem; }
.btn-sm { padding: .3rem .7rem; font-size: .85rem; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }
.actions { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }

table.list { width: 100%; border-collapse: collapse; background: var(--panel);
  border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
table.list th, table.list td { text-align: left; padding: .55rem .8rem;
  border-bottom: 1px solid var(--line); vertical-align: top; }
table.list th { background: #fafbfc; font-size: .8rem; text-transform: uppercase;
  letter-spacing: .04em; color: var(--muted); }
table.list tr:last-child td { border-bottom: 0; }
.table-wrap { overflow-x: auto; }

.badge { display: inline-block; padding: .15rem .55rem; border-radius: 999px;
  font-size: .78rem; font-weight: 600; background: #eef1f6; color: var(--muted);
  white-space: nowrap; }
.badge-draft { background: #eef1f6; color: var(--muted); }
.badge-queued { background: #f4f0ff; color: #6941c6; }
.badge-retrieving_listing, .badge-generating, .badge-sending { background: #eff4ff; color: var(--accent); }
.badge-generated { background: #ecfdf3; color: var(--ok); }
.badge-sent, .badge-accepted { background: #d1fadf; color: var(--ok); }
.badge-generation_failed, .badge-send_failed, .badge-rejected { background: #fef3f2; color: var(--danger); }
.badge-countered, .badge-expired, .badge-withdrawn { background: #fffaeb; color: var(--warn); }
.badge-outdated { background: #fffaeb; color: var(--warn); }

form.stacked p, form.stacked .field { margin: 0 0 .8rem; }
form.stacked label { display: block; font-weight: 600; font-size: .85rem;
  margin-bottom: .2rem; }
form.stacked input[type=text], form.stacked input[type=number],
form.stacked input[type=email], form.stacked input[type=password],
form.stacked select, form.stacked textarea {
  width: 100%; padding: .5rem .65rem; border: 1px solid var(--line);
  border-radius: 8px; font: inherit; background: #fff; }
form.stacked input:focus, form.stacked select:focus, form.stacked textarea:focus {
  outline: 2px solid #b2ccff; border-color: var(--accent); }
form.stacked .helptext { display: block; color: var(--muted); font-size: .8rem; }
form.stacked .errorlist { color: var(--danger); margin: .1rem 0 .3rem; padding-left: 1rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 1.25rem; }
.form-grid .span2 { grid-column: 1 / -1; }
@media (max-width: 720px) { .form-grid { grid-template-columns: 1fr; } }

dl.kv { display: grid; grid-template-columns: 220px 1fr; gap: .25rem .75rem; margin: 0; }
dl.kv dt { color: var(--muted); font-size: .85rem; }
dl.kv dd { margin: 0; }
@media (max-width: 620px) { dl.kv { grid-template-columns: 1fr; } dl.kv dt { margin-top: .4rem; } }

.timeline { list-style: none; margin: 0; padding: 0; }
.timeline li { padding: .5rem 0 .5rem 1.1rem; border-left: 2px solid var(--line);
  position: relative; }
.timeline li::before { content: ''; position: absolute; left: -5px; top: 1rem;
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.filterbar { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center;
  margin-bottom: .75rem; }
.filterbar input[type=text], .filterbar select { padding: .4rem .6rem;
  border: 1px solid var(--line); border-radius: 8px; font: inherit; }
.opnote { background: #fbfbfd; border: 1px dashed var(--line); border-radius: 8px;
  padding: .6rem .8rem; font-family: ui-monospace, monospace; font-size: .8rem;
  overflow-x: auto; white-space: pre; }
.pdf-frame { width: 100%; height: 75vh; border: 1px solid var(--line); border-radius: 8px; }
.login-card { max-width: 380px; margin: 8vh auto; }