:root {
  --bg: #0b0f14;
  --panel: #121926;
  --muted: #95a3b8;
  --text: #e8eef8;
  --accent: #5b8cff;
  --border: rgba(255, 255, 255, 0.08);
  --danger: #ff5b6e;
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
  background: var(--bg);
  color: var(--text);
}

.app {
  height: 100%;
  display: grid;
  grid-template-rows: auto 1fr;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: rgba(18, 25, 38, 0.6);
  backdrop-filter: blur(6px);
}

.title {
  font-weight: 700;
  letter-spacing: 0.2px;
}

.statusText {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 6px;
}

.metrics {
  display: flex;
  gap: 10px;
  align-items: center;
}

.metric {
  font-size: 12px;
  color: var(--muted);
}

.metric.load-low { color: #4ade80; }
.metric.load-med { color: #fbbf24; }
.metric.load-high { color: #ff5b6e; }

.define-term {
  text-decoration: underline dotted var(--accent);
  cursor: pointer;
  transition: color 0.15s;
}
.define-term:hover {
  color: var(--accent);
}

.debugToggle {
  font-size: 12px;
  padding: 6px 10px;
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
}

.main {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 12px;
  padding: 12px;
  min-height: 0;     /* allow grid row to constrain height */
  overflow: hidden;
}

.chat {
  display: flex;
  flex-direction: column;
  min-height: 0;
  height: 100%;      /* fill the grid column */
}

.side {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
  height: 100%;      /* fill grid cell so overflow-y can scroll */
  overflow-y: auto;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.panelTitle {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
}

.panelBody {
  padding: 12px;
  color: var(--text);
  font-size: 13px;
  line-height: 1.45;
}

.debugText {
  margin: 0;
  padding: 12px;
  color: var(--muted);
  font-size: 12px;
  overflow: auto;
  max-height: 240px;
}

.authPanel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  width: min(520px, 100%);
}

.authTitle {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 10px;
}

.authForm {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

.authInput {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.2);
  color: var(--text);
}

.authButton {
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--accent);
  color: #08101f;
  font-weight: 700;
  cursor: pointer;
}

.authError {
  margin-top: 10px;
  color: var(--danger);
  font-size: 12px;
}

/* ─── Gate screen ─────────────────────────────────────────────────────────── */

/* Auth mode: only the gate screen is shown; header and main are hidden */
.app.auth-mode > .header { display: none; }
.app.auth-mode > .main   { display: none; }
.app.auth-mode {
  display: flex;
  flex-direction: column;
}
.app.auth-mode > .gateScreen {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Chat mode: gate screen is hidden */
.app:not(.auth-mode) > .gateScreen { display: none; }

.chatPanel {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-height: 0;
}

.messages {
  flex: 1;
  min-height: 0;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(18, 25, 38, 0.35);
  overflow-y: auto;
  overflow-x: hidden;
  overscroll-behavior: contain;
  touch-action: pan-y;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.18) transparent;
}

.messages::-webkit-scrollbar { width: 4px; }
.messages::-webkit-scrollbar-track { background: transparent; }
.messages::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.18);
  border-radius: 2px;
}
.messages::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.35);
}

.msg {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  margin-bottom: 10px;
}

.msg.user {
  background: rgba(91, 140, 255, 0.10);
}

.msg.assistant {
  background: rgba(255, 255, 255, 0.03);
}

.msg .role {
  font-size: 11px;
  color: var(--muted);
  margin-bottom: 6px;
}

.msg .content {
  font-size: 14px;
  line-height: 1.45;
}

.msg .content pre {
  white-space: pre-wrap;
  word-break: break-word;
  background: rgba(0, 0, 0, 0.25);
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  overflow: auto;
}

.msg .content code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, Liberation Mono, monospace;
  font-size: 0.95em;
}

.composer {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  padding: 12px 0 0;
}

.userInput {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.2);
  color: var(--text);
}

button.primary, button.secondary {
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  cursor: pointer;
  font-weight: 700;
}

button.primary {
  background: var(--accent);
  color: #08101f;
}

button.secondary {
  background: transparent;
  color: var(--muted);
}

.waiting {
  display: flex;
  justify-content: center;
  padding: 12px;
}

.dots {
  display: inline-flex;
  gap: 6px;
  align-items: center;
}

.dots span {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: rgba(232, 238, 248, 0.35);
  animation: blink 1.2s infinite ease-in-out;
}

.dots span:nth-child(2) { animation-delay: 0.15s; }
.dots span:nth-child(3) { animation-delay: 0.30s; }

@keyframes blink {
  0%, 80%, 100% { opacity: 0.25; transform: translateY(0); }
  40% { opacity: 1; transform: translateY(-2px); }
}

.qb-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.qb-form label {
  font-size: 12px;
  color: var(--muted);
}

.qb-form select,
.qb-form input[type="text"] {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.2);
  color: var(--text);
  font-size: 13px;
}

.qb-form button {
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--accent);
  color: #08101f;
  font-weight: 700;
  cursor: pointer;
  font-size: 13px;
}

/* ── Collapsible panel (profile) ───────────────────────────────────────── */

.collapsible .panelTitle {
  cursor: pointer;
  user-select: none;
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-wrap: wrap;
}

.chevron {
  font-size: 10px;
  transition: transform 0.15s;
}

.panelHint {
  flex: 1 1 100%;
  font-size: 11px;
  color: var(--muted);
  opacity: 0.7;
  margin-top: 2px;
}

/* Profile form layout */
#profileForm {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

#profileForm label {
  font-size: 12px;
  color: var(--muted);
}

#profileForm input[type="text"],
#profileForm select,
#profileForm textarea {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(0, 0, 0, 0.2);
  color: var(--text);
  font-size: 13px;
  font-family: inherit;
  resize: vertical;
}

.sliderRow {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sliderRow input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
}

.sliderTick {
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
}

.profileActions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 4px;
}

.profileActions button {
  padding: 8px 14px;
  font-size: 13px;
}

.profileStatus {
  font-size: 12px;
  color: #4ade80;
}

/* ── Right-click context menu ───────────────────────────────────────────── */

.ctx-menu {
  position: fixed;
  z-index: 9999;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 4px 0;
  min-width: 160px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.ctx-menu-item {
  padding: 8px 14px;
  font-size: 13px;
  cursor: pointer;
  color: var(--text);
}

.ctx-menu-item:hover {
  background: rgba(255, 255, 255, 0.06);
}

@media (max-width: 980px) {
  .main { grid-template-columns: 1fr; }
}