:root {
  --bg: #0a0912;
  --bg-soft: #12101f;
  --panel: #171427;
  --panel-2: #1d1931;
  --line: #2a2445;
  --gold: #d4af37;
  --gold-soft: #f0d98c;
  --text: #ece9f7;
  --muted: #9a93b8;
  --user-bubble: #2b2550;
  --ok: #4ade80;
  --bad: #f87171;
  --radius: 16px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body { height: 100%; }

body {
  font-family: "Georgia", "Iowan Old Style", "Palatino Linotype", serif;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
}

.app {
  display: grid;
  grid-template-columns: 300px 1fr;
  height: 100vh;
}

/* ---------- Sidebar ---------- */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 20px 16px;
  background:
    radial-gradient(1200px 500px at -10% -10%, rgba(212, 175, 55, 0.07), transparent 60%),
    var(--bg-soft);
  border-right: 1px solid var(--line);
  overflow-y: auto;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--gold), #8a6d1f);
  color: #1a1405;
  font-size: 20px;
  font-weight: bold;
  box-shadow: 0 4px 18px rgba(212, 175, 55, 0.35);
}
.brand-name { font-size: 17px; font-weight: bold; letter-spacing: 0.4px; }
.brand-sub { font-size: 12px; color: var(--muted); font-style: italic; }

.new-chat {
  padding: 11px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  color: var(--gold-soft);
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: 0.2s;
}
.new-chat:hover { background: var(--panel-2); border-color: var(--gold); }

.side-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 13px;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--muted);
}
.side-card-title {
  color: var(--gold-soft);
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  margin-bottom: 8px;
}
.cfg-line { display: flex; justify-content: space-between; gap: 8px; padding: 2px 0; }
.cfg-line span { color: var(--muted); }
.cfg-line b { color: var(--text); font-weight: 600; font-size: 12px; max-width: 160px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cfg-line b.ok { color: var(--ok); }
.cfg-line b.bad { color: var(--bad); }
.cfg-hint { margin-top: 8px; font-size: 11px; color: #6f6890; font-style: italic; }

.conv-list { display: flex; flex-direction: column; gap: 6px; max-height: 260px; overflow-y: auto; }
.conv-list .empty { color: #6f6890; font-style: italic; font-size: 12px; }
.conv-item {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel-2);
  cursor: pointer;
  transition: 0.15s;
  text-align: left;
  font-family: inherit;
  color: var(--text);
}
.conv-item:hover { border-color: var(--gold); }
.conv-item.active { border-color: var(--gold); background: rgba(212, 175, 55, 0.08); }
.conv-item .conv-info { flex: 1; min-width: 0; }
.conv-item .conv-title { font-size: 12.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.conv-item .conv-meta { font-size: 10.5px; color: var(--muted); }
.conv-item .conv-del { background: none; border: none; color: #6f6890; cursor: pointer; font-size: 13px; padding: 2px 4px; border-radius: 6px; }
.conv-item .conv-del:hover { color: var(--bad); }

.side-input {
  width: 100%;
  padding: 9px 11px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  outline: none;
}
.side-input:focus { border-color: var(--gold); }

.side-foot {
  margin-top: auto;
  font-size: 11px;
  color: #6f6890;
  font-style: italic;
  line-height: 1.5;
}

/* ---------- Main ---------- */
.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background:
    radial-gradient(900px 400px at 80% -10%, rgba(90, 60, 200, 0.10), transparent 60%),
    radial-gradient(700px 400px at 10% 110%, rgba(212, 175, 55, 0.05), transparent 60%),
    var(--bg);
}

.topbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  background: rgba(10, 9, 18, 0.75);
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 5;
}
.domain-tabs { display: flex; gap: 6px; overflow-x: auto; scrollbar-width: none; }
.domain-tabs::-webkit-scrollbar { display: none; }
.domain-tab {
  padding: 7px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--muted);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  white-space: nowrap;
  transition: 0.15s;
}
.domain-tab:hover { color: var(--text); border-color: #3a3263; }
.domain-tab.active {
  background: linear-gradient(135deg, rgba(212, 175, 55, 0.18), rgba(212, 175, 55, 0.05));
  color: var(--gold-soft);
  border-color: var(--gold);
}

/* ---------- Domain panel ---------- */
.domain-panel {
  padding: 16px 20px 4px;
  border-bottom: 1px solid var(--line);
  background: rgba(18, 16, 31, 0.55);
  display: none;
  max-height: 46vh;
  overflow-y: auto;
}
.domain-panel.visible { display: block; }

.dp-guide { display: flex; gap: 16px; flex-wrap: wrap; align-items: flex-start; margin-bottom: 12px; }
.dp-guide-main { flex: 1 1 360px; min-width: 260px; }
.dp-title { font-size: 17px; color: var(--gold-soft); margin-bottom: 4px; }
.dp-title .tag { font-size: 11px; color: var(--muted); font-style: italic; font-weight: normal; margin-left: 8px; }
.dp-desc { font-size: 13px; color: var(--muted); line-height: 1.6; margin-bottom: 8px; }
.dp-inputs-hint { font-size: 12px; color: #6f6890; font-style: italic; }
.dp-inputs-hint b { color: var(--muted); font-style: normal; }

.dp-form {
  flex: 1 1 340px;
  min-width: 260px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.dp-form-row { display: flex; gap: 8px; align-items: flex-end; flex-wrap: wrap; }
.dp-field { display: flex; flex-direction: column; gap: 4px; flex: 1 1 140px; }
.dp-field.wide { flex-basis: 100%; }
.dp-field label { font-size: 11px; letter-spacing: 0.8px; text-transform: uppercase; color: var(--muted); }
.dp-field label .req { color: var(--bad); }
.dp-field input, .dp-field select, .dp-field textarea {
  padding: 9px 11px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  outline: none;
  width: 100%;
}
.dp-field textarea { min-height: 64px; resize: vertical; }
.dp-field input:focus, .dp-field select:focus, .dp-field textarea:focus { border-color: var(--gold); }
.dp-field .geo-ok { color: var(--ok); font-size: 11px; }
.dp-field .geo-err { color: var(--bad); font-size: 11px; }

.person-block { border: 1px dashed var(--line); border-radius: 10px; padding: 10px; display: flex; flex-direction: column; gap: 8px; }
.person-block .pb-title { font-size: 11px; color: var(--gold-soft); letter-spacing: 1px; text-transform: uppercase; }

.dp-actions { display: flex; gap: 8px; flex-wrap: wrap; }
.btn {
  padding: 10px 16px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--gold-soft);
  font-family: inherit;
  font-size: 13.5px;
  cursor: pointer;
  transition: 0.15s;
}
.btn:hover { border-color: var(--gold); background: var(--panel-2); }
.btn.primary { background: linear-gradient(135deg, var(--gold), #8a6d1f); color: #1a1405; border: none; font-weight: bold; }
.btn.primary:hover { box-shadow: 0 4px 18px rgba(212, 175, 55, 0.35); }
.btn.small { padding: 6px 11px; font-size: 12px; border-radius: 9px; }

.dp-primary-ep { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 10px; }
.ep-pill {
  font-family: "Menlo", "SF Mono", monospace;
  font-size: 11px;
  padding: 5px 10px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--muted);
}

/* Explorer */
.explorer { margin-top: 14px; border-top: 1px solid var(--line); padding-top: 12px; }
.ep-toggle { cursor: pointer; color: var(--gold-soft); font-size: 13px; letter-spacing: 0.6px; user-select: none; }
.ep-toggle:hover { color: var(--gold); }
.ep-row { margin-top: 8px; border: 1px solid var(--line); border-radius: 10px; background: var(--panel); padding: 8px 10px; }
.ep-head { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.ep-head code { font-family: "Menlo", "SF Mono", monospace; font-size: 11.5px; color: var(--gold-soft); }
.ep-head .ep-label { font-size: 11px; color: var(--muted); font-style: italic; }
.ep-head .spacer { flex: 1; }
.ep-head .mini {
  padding: 4px 9px; border-radius: 8px; border: 1px solid var(--line);
  background: var(--panel-2); color: var(--gold-soft); font-family: inherit; font-size: 11.5px; cursor: pointer;
}
.ep-head .mini:hover { border-color: var(--gold); }
.ep-body { margin-top: 8px; display: none; }
.ep-body.open { display: block; }
.ep-body textarea {
  width: 100%; min-height: 90px;
  border-radius: 10px; border: 1px solid var(--line);
  background: #0d0b18; color: #b8f0c0;
  font-family: "Menlo", "SF Mono", monospace; font-size: 11.5px;
  padding: 10px; resize: vertical; outline: none;
}
.ep-result { margin-top: 8px; }
.ep-result .res-status { font-size: 11px; font-weight: bold; margin-bottom: 4px; }
.ep-result .res-status.ok { color: var(--ok); }
.ep-result .res-status.bad { color: var(--bad); }
.ep-result pre {
  background: #0d0b18; border: 1px solid var(--line); border-radius: 10px;
  padding: 10px; font-family: "Menlo", "SF Mono", monospace; font-size: 11px;
  max-height: 320px; overflow: auto; color: #c9e6ff; white-space: pre-wrap; word-break: break-word;
}

/* ---------- Messages ---------- */
.messages {
  flex: 1;
  overflow-y: auto;
  padding: 18px 24px 8px;
  scroll-behavior: smooth;
}

.msg { display: flex; flex-direction: column; margin-bottom: 18px; max-width: 82%; }
.msg.user { align-self: flex-end; align-items: flex-end; margin-left: auto; }
.msg.guru { align-self: flex-start; align-items: flex-start; margin-right: auto; }

.who { font-size: 11px; color: var(--gold); letter-spacing: 1px; text-transform: uppercase; margin-bottom: 5px; }
.msg.user .who { display: none; }

.bubble {
  padding: 12px 16px;
  border-radius: var(--radius);
  line-height: 1.6;
  font-size: 14.5px;
  white-space: pre-wrap;
  word-break: break-word;
  max-width: 100%;
}
.msg.user .bubble {
  background: var(--user-bubble);
  border-bottom-right-radius: 5px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.25);
}
.msg.guru .bubble {
  background: var(--panel);
  border: 1px solid var(--line);
  border-bottom-left-radius: 5px;
  box-shadow: 0 2px 12px rgba(0,0,0,0.2);
}

/* computed data panel inside guru messages */
.computed { width: 100%; margin-top: 8px; display: flex; flex-direction: column; gap: 6px; }
.res {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(13, 11, 24, 0.8);
  padding: 7px 10px;
}
.res summary { cursor: pointer; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-size: 12px; user-select: none; }
.res summary code { font-family: "Menlo", "SF Mono", monospace; font-size: 11px; color: var(--gold-soft); }
.badge { font-size: 10px; font-weight: bold; padding: 2px 7px; border-radius: 999px; }
.badge.ok { background: rgba(74, 222, 128, 0.15); color: var(--ok); }
.badge.bad { background: rgba(248, 113, 113, 0.15); color: var(--bad); }
.res .res-err { color: var(--bad); font-size: 11px; }
.res pre {
  margin-top: 8px;
  background: #0d0b18; border: 1px solid var(--line); border-radius: 8px;
  padding: 9px; font-family: "Menlo", "SF Mono", monospace; font-size: 10.5px;
  max-height: 300px; overflow: auto; color: #c9e6ff; white-space: pre-wrap; word-break: break-word;
}

.msg-foot { width: 100%; display: flex; align-items: center; gap: 10px; margin-top: 6px; flex-wrap: wrap; }
.think-note { font-size: 10.5px; color: #6f6890; font-style: italic; }
.fb { display: flex; gap: 6px; align-items: center; }
.fb-btn {
  padding: 4px 10px; border-radius: 8px; border: 1px solid var(--line);
  background: var(--panel-2); color: var(--muted); font-family: inherit; font-size: 12px; cursor: pointer;
}
.fb-btn:hover { color: var(--text); border-color: var(--gold); }
.fb-btn.on { color: var(--ok); border-color: var(--ok); }
.fb-btn.bad-on { color: var(--bad); border-color: var(--bad); }
.fb-note {
  padding: 5px 9px; border-radius: 8px; border: 1px solid var(--line);
  background: var(--panel-2); color: var(--text); font-family: inherit; font-size: 12px;
  width: 220px; outline: none;
}
.fb-note:focus { border-color: var(--gold); }

.typing-dots { display: inline-flex; gap: 4px; padding: 4px 2px; }
.typing-dots span { width: 7px; height: 7px; border-radius: 50%; background: var(--gold); animation: blink 1.2s infinite; }
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes blink { 0%, 80%, 100% { opacity: 0.2; transform: translateY(0); } 40% { opacity: 1; transform: translateY(-3px); } }
.thinking-text { color: var(--muted); font-style: italic; font-size: 13px; }

/* ---------- Composer ---------- */
.composer { padding: 10px 24px 14px; background: linear-gradient(transparent, var(--bg) 40%); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 10px; }
.chip {
  padding: 7px 13px;
  font-family: inherit;
  font-size: 12.5px;
  color: var(--gold-soft);
  background: transparent;
  border: 1px solid rgba(212, 175, 55, 0.45);
  border-radius: 999px;
  cursor: pointer;
  transition: 0.2s;
  white-space: nowrap;
}
.chip:hover { background: rgba(212, 175, 55, 0.12); border-color: var(--gold); }

.input-row { display: flex; gap: 10px; align-items: center; }
.reasoning {
  padding: 13px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--gold-soft);
  font-family: inherit;
  font-size: 13px;
  outline: none;
  cursor: pointer;
  flex-shrink: 0;
}
.reasoning:focus { border-color: var(--gold); }
#input {
  flex: 1;
  padding: 15px 18px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--panel);
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
  outline: none;
  transition: 0.2s;
}
#input::placeholder { color: #6f6890; font-style: italic; }
#input:focus { border-color: var(--gold); box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.12); }

.send {
  width: 50px; height: 50px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--gold), #8a6d1f);
  color: #1a1405;
  font-size: 18px;
  cursor: pointer;
  transition: 0.2s;
  flex-shrink: 0;
}
.send:hover { transform: scale(1.06); box-shadow: 0 4px 18px rgba(212, 175, 55, 0.4); }
.send:active { transform: scale(0.96); }
.send:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.disclaimer { margin-top: 10px; text-align: center; font-size: 11px; color: #6f6890; font-style: italic; }

/* ---------- Scrollbar ---------- */
.messages::-webkit-scrollbar, .sidebar::-webkit-scrollbar, .domain-panel::-webkit-scrollbar { width: 8px; }
.messages::-webkit-scrollbar-thumb, .sidebar::-webkit-scrollbar-thumb, .domain-panel::-webkit-scrollbar-thumb { background: var(--line); border-radius: 8px; }
.messages::-webkit-scrollbar-thumb:hover, .sidebar::-webkit-scrollbar-thumb:hover, .domain-panel::-webkit-scrollbar-thumb:hover { background: #3a3263; }

/* ---------- Mobile ---------- */
@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .msg { max-width: 95%; }
  .messages { padding: 14px 12px 6px; }
  .composer { padding: 8px 12px 12px; }
  .domain-panel { max-height: 40vh; padding: 12px 12px 4px; }
  .reasoning { padding: 11px 10px; font-size: 12px; }
  .fb-note { width: 140px; }
}