:root {
  --bg: #10120f;
  --panel: #171a16;
  --panel-2: #1d211b;
  --line: #2a2e26;
  --text: #e9e6dd;
  --muted: #8b8f83;
  --amber: #d99a3d;
  --amber-dim: #8a6526;
  --error: #d16a5a;
  --ok: #7fb069;
  --radius: 3px;
  --mono: "JetBrains Mono", "Fira Code", ui-monospace, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 14px;
}

.hidden { display: none !important; }

a { color: var(--amber); }

/* ---------- кнопки и поля ---------- */
button, input, textarea, select { font: inherit; color: inherit; }

.btn {
  background: none;
  border: 1px solid var(--line);
  color: var(--muted);
  padding: 6px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 12px;
}
.btn:hover:not(:disabled) { border-color: var(--amber-dim); color: var(--text); }
.btn:disabled { opacity: 0.4; cursor: default; }
.btn.primary {
  background: var(--amber);
  border-color: var(--amber);
  color: #1a1300;
  font-weight: 600;
  font-size: 14px;
  padding: 10px 16px;
}
.btn.primary:hover:not(:disabled) { filter: brightness(1.08); color: #1a1300; }
.btn.danger:hover:not(:disabled) { border-color: var(--error); color: var(--error); }

input[type="text"], input[type="password"], textarea, select {
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 9px 11px;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--amber-dim); }

label { display: block; font-size: 12px; color: var(--muted); margin: 14px 0 5px; }
label.inline { display: inline-flex; align-items: center; gap: 8px; margin: 0; cursor: pointer; }
label.inline input { width: auto; }

.form-error { color: var(--error); font-size: 12px; min-height: 18px; margin: 12px 0 0; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.spaced { margin-top: 28px; }
.flush { margin-top: 0; }
a.btn { display: inline-block; text-decoration: none; }

/* ---------- экраны входа и смены пароля ---------- */
.center {
  min-height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  width: 100%;
  max-width: 380px;
}
.card h1 { margin: 0 0 4px; font-size: 16px; }
.card p.lead { margin: 0 0 8px; color: var(--muted); font-size: 12px; line-height: 1.5; }
.card .btn.primary { width: 100%; margin-top: 18px; }
.card .btn.secondary { width: 100%; margin-top: 8px; }

.brand { display: flex; align-items: baseline; gap: 10px; }
.brand .dot { width: 8px; height: 8px; background: var(--amber); border-radius: 50%; display: inline-block; }

/* ---------- приложение: боковая панель и чат ---------- */
.app {
  display: grid;
  grid-template-columns: 270px 1fr;
  height: 100vh;
  height: 100dvh;
}

aside#sidebar {
  background: var(--panel);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  min-height: 0;
}
aside .side-top { padding: 14px; border-bottom: 1px solid var(--line); }
aside .side-top .btn { width: 100%; }
ul#chatList { list-style: none; margin: 0; padding: 8px; flex: 1; overflow-y: auto; }
ul#chatList li { display: flex; align-items: center; border-radius: var(--radius); }
ul#chatList li:hover, ul#chatList li.active { background: var(--panel-2); }
ul#chatList li.active { box-shadow: inset 2px 0 0 var(--amber); }
.chat-item {
  flex: 1;
  min-width: 0;
  text-align: left;
  background: none;
  border: none;
  padding: 9px 10px;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-size: 13px;
}
.chat-del {
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  padding: 6px 10px;
  font-size: 16px;
  visibility: hidden;
}
ul#chatList li:hover .chat-del, ul#chatList li.active .chat-del { visibility: visible; }
.chat-del:hover { color: var(--error); }
.side-empty { color: var(--muted); font-size: 12px; padding: 10px; }

.side-foot { border-top: 1px solid var(--line); padding: 12px 14px; font-size: 12px; }
.side-foot .who-am-i { color: var(--muted); margin-bottom: 8px; word-break: break-all; }
.side-foot .row-btns { display: flex; gap: 6px; flex-wrap: wrap; }
.side-foot a.btn { text-decoration: none; }

section.chat { display: flex; flex-direction: column; min-width: 0; min-height: 0; }

.chat-header {
  border-bottom: 1px solid var(--line);
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.chat-header .title { flex: 1; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--muted); font-size: 12px; }
.chat-header select { width: auto; padding: 5px 8px; font-size: 12px; }
#sidebarToggle { display: none; }

#log {
  flex: 1;
  overflow-y: auto;
  padding: 24px 20px 12px;
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
}
.empty-state { color: var(--muted); text-align: center; margin-top: 18vh; line-height: 1.7; }

.row { margin-bottom: 20px; }
.who { font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin-bottom: 4px; }
.row.user .who { color: var(--amber); }
.bubble { line-height: 1.6; overflow-wrap: anywhere; }
.bubble .text { white-space: pre-wrap; }
.bubble .text + .codeblock, .bubble .codeblock + .text, .bubble .codeblock + .codeblock { margin-top: 10px; }
.row.system .bubble { color: var(--muted); font-style: italic; }
.row.error .bubble { color: var(--error); }
.note { color: var(--muted); font-size: 12px; margin-top: 6px; }

.codeblock { border: 1px solid var(--line); border-radius: var(--radius); background: var(--panel); overflow: hidden; }
.codeblock .code-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 10px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 11px;
}
.codeblock .code-head button { background: none; border: none; color: var(--muted); cursor: pointer; font-size: 11px; }
.codeblock .code-head button:hover { color: var(--amber); }
.codeblock pre { margin: 0; padding: 10px 12px; overflow-x: auto; font-size: 13px; line-height: 1.5; }

.typing span {
  display: inline-block;
  width: 5px; height: 5px;
  margin-right: 3px;
  background: var(--muted);
  border-radius: 50%;
  animation: blink 1.2s infinite ease-in-out;
}
.typing span:nth-child(2) { animation-delay: 0.15s; }
.typing span:nth-child(3) { animation-delay: 0.3s; }
@keyframes blink { 0%, 80%, 100% { opacity: 0.2; } 40% { opacity: 1; } }

form#composer { border-top: 1px solid var(--line); padding: 14px 20px 18px; }
.composer-inner { max-width: 760px; margin: 0 auto; display: flex; gap: 10px; align-items: flex-end; }
.composer-inner textarea { flex: 1; resize: none; max-height: 160px; }
.composer-inner .btn.primary { padding: 10px 16px; }
.hint { max-width: 760px; margin: 6px auto 0; color: var(--muted); font-size: 11px; min-height: 14px; }

/* ---------- квота пользователя ---------- */
.quota { display: grid; gap: 9px; margin-bottom: 12px; }
.quota-label { display: flex; justify-content: space-between; gap: 8px; color: var(--muted); font-size: 11px; margin-bottom: 4px; }
progress {
  display: block;
  width: 100%;
  height: 5px;
  border: none;
  border-radius: 3px;
  overflow: hidden;
  appearance: none;
  -webkit-appearance: none;
  background: var(--line);
}
progress::-webkit-progress-bar { background: var(--line); }
progress::-webkit-progress-value { background: var(--ok); }
progress::-moz-progress-bar { background: var(--ok); }
progress.warn::-webkit-progress-value { background: var(--amber); }
progress.warn::-moz-progress-bar { background: var(--amber); }
progress.full::-webkit-progress-value { background: var(--error); }
progress.full::-moz-progress-bar { background: var(--error); }

/* ---------- админка ---------- */
.page { max-width: 1280px; margin: 0 auto; padding: 22px 20px 60px; }
.page header.top { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 26px; }
.page h2 { font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); margin: 32px 0 12px; font-weight: 600; }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }

.create-row { display: flex; gap: 14px; align-items: flex-end; flex-wrap: wrap; }
.create-row .field { flex: 1; min-width: 180px; }
.create-row label { margin-top: 0; }
.create-row label.inline { height: 38px; }
#pageError:empty { display: none; }

.notice { border: 1px solid var(--amber-dim); background: var(--panel-2); border-radius: var(--radius); padding: 14px 16px; margin-top: 14px; }
.notice .secret { display: flex; gap: 10px; align-items: center; margin: 8px 0; flex-wrap: wrap; }
.notice code { background: var(--bg); padding: 6px 10px; border-radius: var(--radius); border: 1px solid var(--line); user-select: all; }
.notice .muted { font-size: 12px; }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: var(--radius); }
table.tbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.tbl th, .tbl td { padding: 9px 10px; text-align: left; border-bottom: 1px solid var(--line); white-space: nowrap; }
.tbl th { color: var(--muted); font-weight: 500; font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; background: var(--panel); }
.tbl tr:last-child td { border-bottom: none; }
.tbl td.num, .tbl th.num { text-align: right; }
.tbl td.act { white-space: normal; min-width: 230px; }
.tbl .actions { display: flex; gap: 6px; flex-wrap: wrap; }
.tbl .actions .btn { padding: 4px 9px; }
.tag { display: inline-block; padding: 1px 7px; border: 1px solid var(--line); border-radius: 99px; font-size: 11px; color: var(--muted); }
.tag.admin { color: var(--amber); border-color: var(--amber-dim); }
.tag.off { color: var(--error); border-color: var(--error); }
.tag.ok { color: var(--ok); border-color: #3f5a35; }

.toolbar { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.toolbar select { width: auto; padding: 5px 8px; font-size: 12px; }

/* ---------- мобильная версия ---------- */
@media (max-width: 760px) {
  .app { grid-template-columns: 1fr; }
  aside#sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(300px, 86vw);
    z-index: 10;
    transform: translateX(-100%);
    transition: transform 0.18s ease;
  }
  aside#sidebar.open { transform: translateX(0); box-shadow: 0 0 0 100vmax rgba(0, 0, 0, 0.55); }
  #sidebarToggle { display: inline-block; }
  form#composer { padding: 10px 12px 14px; }
}

@media (prefers-reduced-motion: reduce) {
  .typing span { animation: none; opacity: 0.6; }
  aside#sidebar { transition: none; }
}

/* ---------- лимиты в админке ---------- */
.form-ok { color: var(--ok); font-size: 12px; min-height: 18px; margin: 12px 0 0; }
.tag.warn { color: var(--amber); border-color: var(--amber-dim); }
.tag + .tag { margin-left: 4px; }

dialog {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  width: min(440px, 92vw);
  font-family: var(--mono);
}
dialog::backdrop { background: rgba(0, 0, 0, 0.6); }
dialog h2 { margin: 0 0 6px; font-size: 15px; letter-spacing: 0; text-transform: none; color: var(--text); }
dialog p.lead { margin: 0 0 4px; color: var(--muted); font-size: 12px; line-height: 1.5; }
dialog label { margin-top: 16px; }
dialog .field-hint { margin: 5px 0 0; color: var(--muted); font-size: 11px; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 20px; }
.dialog-actions .btn.primary { width: auto; margin: 0; font-size: 13px; padding: 8px 16px; }

/* В формах админки пустые строки сообщений не занимают место. */
.panel .form-error:empty, .panel .form-ok:empty { display: none; }