:root {
  --bg: #f4f5f7;
  --card: #ffffff;
  --text: #1d2330;
  --muted: #6b7385;
  --border: #d9dde5;
  --accent: #1f6feb;
  --accent-text: #ffffff;
  --danger: #c62828;
  --ok-bg: #e7f6ec;
  --ok-text: #1b5e20;
  --err-bg: #fdecea;
  --err-text: #8e1c1c;
  --warn: #b26a00;
  --chat-bg: #11141a;
  --chat-text: #9be26c;
  --radius: 8px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14171d;
    --card: #1d2129;
    --text: #e6e8ee;
    --muted: #9aa2b2;
    --border: #333a47;
    --accent: #4c8dff;
    --ok-bg: #173323;
    --ok-text: #9be2ae;
    --err-bg: #3a1b1b;
    --err-text: #ffb4ab;
    --warn: #f0b04a;
    --chat-bg: #0a0c10;
  }
}

* { 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: 1.5rem; margin: 0 0 1rem; }
h2 { font-size: 1.1rem; margin: 0 0 .75rem; }
code { font-family: ui-monospace, Consolas, monospace; font-size: .9em; }

.wrap { max-width: 1200px; margin: 0 auto; padding: 0 16px; }
main.wrap { padding-top: 1.25rem; padding-bottom: 3rem; }

.topbar { background: var(--card); border-bottom: 1px solid var(--border); }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; min-height: 56px; }
.brand { font-weight: 700; text-decoration: none; color: var(--text); }
.nav { display: flex; align-items: center; gap: .25rem 1rem; flex-wrap: wrap; }
.nav a { text-decoration: none; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1.25rem; margin-bottom: 1rem; }
.card.narrow { max-width: 420px; margin: 2rem auto; }
.stack { display: flex; flex-direction: column; gap: .9rem; }
.row { display: flex; gap: .75rem; align-items: flex-end; flex-wrap: wrap; }
.grow { flex: 1 1 220px; }
.narrow-form { max-width: 420px; }
form.inline { display: inline; }
.page-head { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; margin-bottom: 1rem; }
.page-head h1 { margin: 0; }

label { display: flex; flex-direction: column; gap: .3rem; font-weight: 600; font-size: .9rem; }
input, select {
  font: inherit; color: var(--text); background: var(--bg);
  border: 1px solid var(--border); border-radius: 6px; padding: .5rem .6rem; width: 100%;
}
input:focus, select:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.btn {
  display: inline-block; font: inherit; font-weight: 600; text-decoration: none; cursor: pointer;
  padding: .5rem .9rem; border-radius: 6px; border: 1px solid var(--border);
  background: var(--card); color: var(--text); line-height: 1.2;
}
.btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
.btn.danger { color: var(--danger); border-color: var(--danger); }
.btn.small { padding: .3rem .6rem; font-size: .85rem; }
button.link { background: none; border: 0; padding: 0; font: inherit; color: var(--accent); cursor: pointer; }

.flash { padding: .7rem 1rem; border-radius: 6px; margin-bottom: 1rem; }
.flash-ok { background: var(--ok-bg); color: var(--ok-text); }
.flash-error { background: var(--err-bg); color: var(--err-text); }
.muted { color: var(--muted); }
.hint { color: var(--muted); font-size: .85rem; margin: 0; }
.field-error { color: var(--danger); font-size: .85rem; font-weight: 500; min-height: 0; }
.has-error input { border-color: var(--danger); }

.filters { display: flex; gap: .5rem; flex-wrap: wrap; margin-bottom: 1rem; }
.filters a { padding: .3rem .8rem; border-radius: 999px; border: 1px solid var(--border); text-decoration: none; color: var(--text); background: var(--card); }
.filters a.active { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }

.table-wrap { overflow-x: auto; }
table.list { width: 100%; border-collapse: collapse; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); }
table.list th, table.list td { text-align: left; padding: .6rem .75rem; border-bottom: 1px solid var(--border); vertical-align: top; }
table.list th { font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; color: var(--muted); }
table.list td.actions { white-space: nowrap; text-align: right; }
table.list tr.inactive td { opacity: .55; }
.badge { display: inline-block; padding: .1rem .5rem; border-radius: 999px; font-size: .8rem; font-weight: 600; }
.badge-draft { background: #e3e6ec; color: #3a4252; }
.badge-ready { background: #dbe9ff; color: #0b4bbd; }
.badge-sent { background: #dff3e4; color: #1b5e20; }

.editor { display: grid; grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); gap: 1rem; align-items: start; }
.editor aside { position: sticky; top: 1rem; }
.line-field label { font-size: .85rem; }
.line-input { display: flex; align-items: center; gap: .4rem; }
.line-input .prefix { font-family: ui-monospace, Consolas, monospace; color: var(--muted); font-size: .85rem; }
.line-input input { flex: 1; min-width: 0; }
.counter { font-family: ui-monospace, Consolas, monospace; font-size: .8rem; color: var(--muted); min-width: 4.5em; text-align: right; }
.counter.near { color: var(--warn); }
.counter.over { color: var(--danger); font-weight: 700; }

.chat-preview {
  list-style: none; margin: 0 0 .75rem; padding: .75rem; min-height: 6rem;
  background: var(--chat-bg); color: var(--chat-text); border-radius: 6px;
  font: 600 13px/1.45 "Arial", sans-serif; text-shadow: 1px 1px 0 #000;
  overflow-wrap: anywhere;
}
.chat-preview li.bad { color: #ff8a80; }

.key-box { display: flex; gap: .5rem; align-items: center; flex-wrap: wrap; margin-bottom: 1rem; }
.key-box code { padding: .5rem .7rem; background: var(--bg); border: 1px dashed var(--border); border-radius: 6px; overflow-wrap: anywhere; user-select: all; }
.danger-zone { margin-top: 1rem; }
.inline-details { display: inline-block; }
.inline-details summary { list-style: none; }
.inline-details summary::-webkit-details-marker { display: none; }
.inline-details[open] form { margin-top: .4rem; }

@media (max-width: 860px) {
  .editor { grid-template-columns: 1fr; }
  .editor aside { position: static; }
}
@media (max-width: 640px) {
  table.list thead { display: none; }
  table.list, table.list tbody, table.list tr, table.list td { display: block; width: 100%; }
  table.list tr { border-bottom: 1px solid var(--border); padding: .4rem 0; }
  table.list td { border: 0; padding: .2rem .75rem; }
  table.list td[data-label]::before { content: attr(data-label) ": "; color: var(--muted); font-size: .8rem; }
  table.list td.actions { text-align: left; white-space: normal; }
  .line-input .prefix { display: none; }
}