:root {
  --bg: #111214;
  --panel: #17181b;
  --panel-2: #1e2024;
  --panel-3: #26292e;
  --text: #f4f4f5;
  --muted: #a3a7ae;
  --muted-2: #747982;
  --border: rgba(255,255,255,.10);
  --border-strong: rgba(255,255,255,.16);
  --accent: #ffffff;
  --accent-contrast: #111214;
  --danger: #ff6b6b;
  --success: #67d391;
  --warning: #ffcc66;
  --shadow: 0 20px 60px rgba(0,0,0,.35);
  --sidebar-w: 274px;
  --drawer-w: 404px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --font: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji", sans-serif;
}

:root[data-theme="light"] {
  --bg: #ffffff;
  --panel: #f7f7f8;
  --panel-2: #f0f1f2;
  --panel-3: #e7e8ea;
  --text: #17181a;
  --muted: #61656d;
  --muted-2: #8a8f97;
  --border: rgba(17,18,20,.10);
  --border-strong: rgba(17,18,20,.16);
  --accent: #17181a;
  --accent-contrast: #ffffff;
  --shadow: 0 20px 60px rgba(0,0,0,.12);
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
}
button, input, textarea, select { font: inherit; }
button { color: inherit; }

.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) minmax(0, 1fr);
  width: 100%;
  height: var(--app-height, 100dvh);
  background: var(--bg);
}

.sidebar {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--panel);
  border-right: 1px solid var(--border);
  overflow: hidden;
}

.sidebar-top, .sidebar-bottom { padding: 12px; }
.sidebar-top { display: flex; gap: 8px; }
.primary-action {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: transparent;
  cursor: pointer;
}
.primary-action:hover, .sidebar-link:hover, .icon-btn:hover, .secondary-btn:hover, .text-btn:hover { background: var(--panel-2); }
.icon { font-size: 20px; line-height: 1; }

.search-wrap { padding: 0 12px 8px; }
.search-wrap input {
  width: 100%;
  border: 1px solid transparent;
  border-radius: 10px;
  background: var(--panel-2);
  color: var(--text);
  padding: 9px 11px;
  outline: none;
}
.search-wrap input:focus { border-color: var(--border-strong); }

.chat-list {
  flex: 1;
  overflow: auto;
  padding: 4px 8px 12px;
}
.chat-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 4px;
  align-items: center;
  border-radius: 10px;
  padding: 9px 8px;
  margin: 2px 0;
  cursor: pointer;
  color: var(--muted);
}
.chat-item:hover, .chat-item.active { background: var(--panel-2); color: var(--text); }
.chat-item-title { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; font-size: 14px; }
.chat-item-meta { font-size: 11px; color: var(--muted-2); }
.chat-item-delete {
  opacity: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  border-radius: 7px;
  padding: 3px 6px;
}
.chat-item:hover .chat-item-delete { opacity: 1; }
.chat-item-delete:hover { color: var(--danger); background: rgba(255,107,107,.10); }

.sidebar-bottom { border-top: 1px solid var(--border); }
.sidebar-link, .file-label {
  display: block;
  width: 100%;
  border: 0;
  background: transparent;
  border-radius: 9px;
  padding: 9px 10px;
  text-align: left;
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
}

.main-pane {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  min-width: 0;
  min-height: 0;
  position: relative;
}

.topbar {
  height: 62px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 18px;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(16px);
  z-index: 5;
}
.topbar-left, .topbar-right, .topbar-center { display: flex; align-items: center; gap: 10px; }
.topbar-right { justify-content: flex-end; }
.brand { font-weight: 650; letter-spacing: -.01em; }
.connection-badge { margin-top: 2px; font-size: 11px; color: var(--muted); }
.connection-badge.online { color: var(--success); }
.connection-badge.error { color: var(--danger); }
.compact-control {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 12px;
}
.compact-control select {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  border-radius: 9px;
  padding: 6px 28px 6px 9px;
  max-width: 220px;
}

.icon-btn, .secondary-btn, .primary-small, .text-btn, .send-btn {
  border: 1px solid var(--border);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
}
.icon-btn { min-width: 36px; height: 36px; padding: 0 10px; }
.wide-btn { min-width: 60px; }
.primary-small, .send-btn {
  background: var(--accent);
  color: var(--accent-contrast);
  border-color: var(--accent);
}
.primary-small { padding: 9px 14px; }
.secondary-btn { padding: 9px 12px; }
.text-btn { border: 0; color: var(--muted); padding: 6px 8px; font-size: 12px; }

.chat-viewport {
  overflow-y: auto;
  overscroll-behavior: contain;
  scroll-behavior: smooth;
}
.welcome {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 22px 160px;
  text-align: center;
}
.welcome-mark {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border-strong);
  border-radius: 18px;
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 18px;
}
.welcome h1 { margin: 0; font-size: clamp(28px, 4vw, 42px); letter-spacing: -.04em; }
.welcome p { color: var(--muted); margin: 12px 0 24px; max-width: 560px; }
.welcome-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; max-width: 760px; }
.suggestion {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  border-radius: 14px;
  padding: 11px 14px;
  cursor: pointer;
}
.suggestion:hover { background: var(--panel-2); }

.messages { width: min(900px, 100%); margin: 0 auto; padding: 26px 24px 180px; }
.message {
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 14px;
  padding: 18px 0;
}
.message-avatar {
  width: 30px;
  height: 30px;
  border: 1px solid var(--border);
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 12px;
  color: var(--muted);
}
.message.user .message-avatar { background: var(--panel-2); }
.message.assistant .message-avatar { background: var(--accent); color: var(--accent-contrast); }
.message-head { min-height: 28px; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.message-role { font-size: 13px; }
.message-actions { display: flex; gap: 6px; opacity: 0; transition: opacity .15s ease; }
.message:hover .message-actions { opacity: 1; }
.mini-action {
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  border-radius: 7px;
  padding: 4px 7px;
  font-size: 12px;
}
.mini-action:hover { background: var(--panel-2); color: var(--text); }
.message-content, .reasoning-content {
  font-size: 15px;
  line-height: 1.72;
  overflow-wrap: anywhere;
}
.message-content p { margin: .55em 0; }
.message-content pre, .reasoning-content pre {
  background: #0b0c0e;
  color: #e8e9eb;
  border: 1px solid rgba(255,255,255,.09);
  padding: 14px;
  border-radius: 12px;
  overflow: auto;
  line-height: 1.55;
  font-size: 13px;
}
:root[data-theme="light"] .message-content pre, :root[data-theme="light"] .reasoning-content pre { background: #202226; color: #f7f7f8; }
.message-content code:not(pre code), .reasoning-content code:not(pre code) {
  background: var(--panel-2);
  border: 1px solid var(--border);
  padding: 1px 5px;
  border-radius: 6px;
  font-size: .92em;
}
.message-content a { color: inherit; text-decoration-color: var(--muted-2); text-underline-offset: 3px; }
.message-content ul, .message-content ol { padding-left: 1.5em; }
.message-content blockquote { margin: .8em 0; padding-left: 14px; border-left: 3px solid var(--border-strong); color: var(--muted); }
.reasoning-block {
  margin: 8px 0 12px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--panel);
}
.reasoning-block summary { color: var(--muted); cursor: pointer; font-size: 13px; user-select: none; }
.reasoning-content { color: var(--muted); margin-top: 10px; font-size: 13px; }
.message-metrics { margin-top: 10px; color: var(--muted-2); font-size: 11px; }
.streaming-caret::after { content: "▍"; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }

.composer-shell {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 18px 22px 10px;
  background: linear-gradient(to bottom, transparent, var(--bg) 34%, var(--bg));
  pointer-events: none;
}
.composer {
  width: min(820px, 100%);
  margin: 0 auto;
  border: 1px solid var(--border-strong);
  border-radius: 24px;
  background: var(--panel);
  box-shadow: var(--shadow);
  pointer-events: auto;
}
.composer textarea {
  width: 100%;
  max-height: 220px;
  resize: none;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--text);
  padding: 16px 17px 8px;
  line-height: 1.5;
}
.composer-footer { display: flex; align-items: center; justify-content: space-between; padding: 6px 8px 8px 14px; }
.composer-meta { color: var(--muted-2); font-size: 11px; }
.send-btn { width: 36px; height: 36px; border-radius: 50%; font-size: 18px; font-weight: 700; }
.send-btn:disabled { opacity: .45; cursor: not-allowed; }
.disclaimer { pointer-events: none; text-align: center; color: var(--muted-2); font-size: 10px; margin-top: 7px; }

.stats-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(var(--drawer-w), 92vw);
  height: 100dvh;
  background: var(--panel);
  border-left: 1px solid var(--border);
  box-shadow: var(--shadow);
  transform: translateX(102%);
  transition: transform .22s ease;
  z-index: 20;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}
.stats-drawer.open { transform: translateX(0); }
.drawer-header { display: flex; align-items: center; justify-content: space-between; padding: 17px; border-bottom: 1px solid var(--border); }
.drawer-title { font-weight: 650; }
.drawer-subtitle { color: var(--muted); font-size: 11px; margin-top: 3px; }
.stats-scroll { overflow-y: auto; padding: 14px; }
.metric-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 9px; }
.metric-card { background: var(--panel-2); border: 1px solid var(--border); border-radius: 14px; padding: 12px; min-height: 102px; }
.metric-card span, .metric-card small { display: block; color: var(--muted); font-size: 11px; }
.metric-card strong { display: block; margin: 8px 0 5px; font-size: 21px; letter-spacing: -.03em; }
.stats-section { margin-top: 18px; border-top: 1px solid var(--border); padding-top: 14px; }
.section-title { font-size: 12px; font-weight: 650; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.section-head-row { display: flex; align-items: center; justify-content: space-between; }
.stat-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 0; font-size: 13px; }
.stat-row span { color: var(--muted); }
.sparkline { height: 100px; margin-top: 10px; border-radius: 12px; background: var(--panel-2); overflow: hidden; }
.sparkline svg { width: 100%; height: 100%; display: block; }

.token-flow-section { overflow: hidden; }
.token-flow-subtitle { margin-top: 4px; color: var(--muted-2); font-size: 11px; }
.token-flow-mode {
  flex: 0 0 auto;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px 8px;
  color: var(--muted);
  background: var(--panel-2);
  font-size: 10px;
  white-space: nowrap;
}
.token-flow { display: grid; gap: 10px; margin-top: 12px; }
.token-flow-row {
  display: grid;
  grid-template-columns: 62px minmax(0, 1fr) 68px;
  align-items: center;
  gap: 9px;
}
.token-flow-label { display: grid; gap: 1px; min-width: 0; }
.token-flow-label strong { font-size: 11px; letter-spacing: .06em; }
.token-flow-label span { color: var(--muted-2); font-size: 9px; overflow: hidden; text-overflow: ellipsis; }
.token-flow-track {
  position: relative;
  height: 18px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel-2);
}
.token-flow-track::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(90deg, transparent 0, transparent calc(25% - 1px), var(--border) calc(25% - 1px), var(--border) 25%);
  opacity: .45;
  pointer-events: none;
}
.token-flow-fill {
  position: relative;
  height: 100%;
  min-width: 0;
  border-radius: 5px;
  background: var(--text);
  opacity: .72;
  transition: width .16s linear;
}
.token-flow-row[data-field="sys"] .token-flow-fill { opacity: .34; }
.token-flow-row[data-field="user"] .token-flow-fill { opacity: .50; }
.token-flow-row[data-field="cot"] .token-flow-fill { opacity: .66; }
.token-flow-row[data-field="ans"] .token-flow-fill { opacity: .88; }
.token-flow-row.streaming .token-flow-fill::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(127,127,127,.40), transparent);
  transform: translateX(-100%);
  animation: token-flow-sweep 1.1s linear infinite;
}
.token-flow-count { text-align: right; color: var(--muted); font-variant-numeric: tabular-nums; font-size: 11px; white-space: nowrap; }
.token-flow-note { margin-top: 10px; color: var(--muted-2); font-size: 10px; line-height: 1.55; }
.token-flow-note code { font-size: .95em; }
@keyframes token-flow-sweep { to { transform: translateX(100%); } }
.request-history { display: grid; gap: 8px; margin-top: 10px; }
.request-card { border: 1px solid var(--border); border-radius: 12px; padding: 10px; font-size: 12px; }
.request-card-top { display: flex; justify-content: space-between; gap: 10px; }
.request-card .ok { color: var(--success); }
.request-card .err { color: var(--danger); }
.request-card-meta { color: var(--muted); margin-top: 6px; line-height: 1.55; }

.settings-dialog {
  width: min(720px, calc(100vw - 28px));
  max-height: min(820px, calc(100dvh - 28px));
  border: 1px solid var(--border-strong);
  border-radius: 22px;
  background: var(--panel);
  color: var(--text);
  padding: 0;
  box-shadow: var(--shadow);
}
.settings-dialog::backdrop { background: rgba(0,0,0,.55); backdrop-filter: blur(3px); }
.settings-dialog form { display: flex; flex-direction: column; max-height: inherit; }
.modal-header, .modal-footer { display: flex; align-items: center; gap: 12px; padding: 18px; }
.modal-header { justify-content: space-between; border-bottom: 1px solid var(--border); }
.modal-header h2 { margin: 0 0 5px; font-size: 19px; }
.modal-header p { margin: 0; color: var(--muted); font-size: 12px; }
.settings-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; padding: 18px; overflow-y: auto; }
.field { display: grid; gap: 7px; }
.field-wide { grid-column: 1 / -1; }
.field > span { font-size: 12px; color: var(--muted); }
.field input, .field textarea, .field select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  padding: 10px 11px;
  outline: none;
}
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--border-strong); }
.field small, .toggle-row small { color: var(--muted-2); font-size: 11px; }
.password-row { display: grid; grid-template-columns: minmax(0,1fr) auto; gap: 8px; }
.toggle-row { display: flex; align-items: flex-start; gap: 10px; padding: 12px; background: var(--panel-2); border-radius: 12px; border: 1px solid var(--border); }
.toggle-row input { margin-top: 2px; }
.toggle-row span { display: grid; gap: 4px; }
.test-result { min-height: 20px; padding: 0 18px; color: var(--muted); font-size: 12px; }
.test-result.success { color: var(--success); }
.test-result.error { color: var(--danger); }
.modal-footer { border-top: 1px solid var(--border); }
.footer-spacer { flex: 1; }

.scrim { position: fixed; inset: 0; background: rgba(0,0,0,.45); z-index: 29; }
.mobile-only { display: none; }

.empty-list { color: var(--muted-2); font-size: 12px; padding: 16px 10px; }
.error-banner { border: 1px solid rgba(255,107,107,.28); background: rgba(255,107,107,.09); color: var(--danger); border-radius: 12px; padding: 10px 12px; margin: 8px 0; font-size: 13px; }

@media (max-width: 900px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar {
    position: fixed;
    left: 0; top: 0; bottom: 0;
    width: min(var(--sidebar-w), 88vw);
    z-index: 30;
    transform: translateX(-102%);
    transition: transform .22s ease;
    box-shadow: var(--shadow);
  }
  .sidebar.open { transform: translateX(0); }
  .mobile-only { display: inline-grid; place-items: center; }
  .topbar { grid-template-columns: 1fr auto; padding: 0 10px; }
  .topbar-center { display: none; }
  .topbar-right { justify-content: flex-end; }
  .messages { padding-inline: 15px; }
  .composer-shell { padding-inline: 12px; }
}

@media (max-width: 560px) {
  .message { grid-template-columns: 28px minmax(0, 1fr); gap: 10px; }
  .message-avatar { width: 26px; height: 26px; border-radius: 8px; }
  .message-content { font-size: 14px; }
  .welcome-actions { display: grid; width: 100%; }
  .suggestion { text-align: left; }
  .settings-grid { grid-template-columns: 1fr; }
  .field-wide { grid-column: auto; }
  .modal-footer { flex-wrap: wrap; }
  .modal-footer .footer-spacer { display: none; }
  #testConnectionBtn { width: 100%; }
}

/* Enhanced llama.cpp telemetry */
.compact-value { font-size: 12px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.context-bar {
  display: flex;
  width: 100%;
  height: 18px;
  margin-top: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: var(--panel-2);
}
.context-seg { height: 100%; width: 0; transition: width .18s linear; }
.context-seg.cache { background: var(--muted-2); opacity: .55; }
.context-seg.prompt { background: var(--muted); opacity: .72; }
.context-seg.generated { background: var(--text); opacity: .92; }
.context-legend {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px 12px;
  margin-top: 10px;
  color: var(--muted);
  font-size: 10px;
}
.context-legend span { display: flex; align-items: center; min-width: 0; gap: 5px; }
.context-legend strong { margin-left: auto; color: var(--text); font-variant-numeric: tabular-nums; white-space: nowrap; }
.legend-dot { width: 7px; height: 7px; border-radius: 2px; flex: 0 0 auto; background: var(--muted-2); }
.legend-dot.prompt { background: var(--muted); }
.legend-dot.generated { background: var(--text); }
.mini-kpi-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 7px; margin-top: 11px; }
.mini-kpi-grid > div { min-width: 0; padding: 9px; border: 1px solid var(--border); border-radius: 10px; background: var(--panel-2); }
.mini-kpi-grid span { display: block; color: var(--muted-2); font-size: 9px; text-transform: uppercase; letter-spacing: .05em; }
.mini-kpi-grid strong { display: block; margin-top: 5px; font-size: 14px; font-variant-numeric: tabular-nums; }
.live-chart { height: 84px; }

/* Relay lanes share one cumulative token axis. */
.token-flow-track { position: relative; }
.token-flow-fill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  height: auto;
  transition: left .16s linear, width .16s linear;
}
.token-flow-axis {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  padding: 6px 77px 0 71px;
  color: var(--muted-2);
  font-size: 9px;
  font-variant-numeric: tabular-nums;
}
.token-flow-axis span { text-align: center; }
.token-flow-axis span:first-child { text-align: left; }
.token-flow-axis span:last-child { text-align: right; }

@media (max-width: 560px) {
  .token-flow-row { grid-template-columns: 52px minmax(0, 1fr) 58px; gap: 6px; }
  .token-flow-axis { padding-left: 58px; padding-right: 64px; }
  .context-legend { grid-template-columns: 1fr; }
}

/* Full-conversation four-lane relay + TTFT prefill diagnostics */
:root {
  --flow-sys: #4f8cff;
  --flow-user: #35b979;
  --flow-cot: #e3a43b;
  --flow-ans: #9a78f0;
}
:root[data-theme="light"] {
  --flow-sys: #2563d9;
  --flow-user: #178956;
  --flow-cot: #b87509;
  --flow-ans: #7550cf;
}
.token-flow-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 13px;
  margin-top: 10px;
  color: var(--muted);
  font-size: 10px;
}
.token-flow-legend span { display: inline-flex; align-items: center; gap: 5px; }
.flow-swatch { width: 9px; height: 9px; border-radius: 3px; display: inline-block; }
.flow-swatch.sys { background: var(--flow-sys); }
.flow-swatch.user { background: var(--flow-user); }
.flow-swatch.cot { background: var(--flow-cot); }
.flow-swatch.ans { background: var(--flow-ans); }
.token-flow-track { min-width: 0; }
.token-flow-fill {
  position: absolute;
  top: 2px;
  bottom: 2px;
  height: auto;
  min-width: 1px;
  border-radius: 3px;
  opacity: .96 !important;
  transition: left .16s linear, width .16s linear;
}
.token-flow-row[data-field="sys"] .token-flow-fill { background: var(--flow-sys); }
.token-flow-row[data-field="user"] .token-flow-fill { background: var(--flow-user); }
.token-flow-row[data-field="cot"] .token-flow-fill { background: var(--flow-cot); }
.token-flow-row[data-field="ans"] .token-flow-fill { background: var(--flow-ans); }
.token-flow-fill.streaming::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.42), transparent);
  transform: translateX(-100%);
  animation: token-flow-sweep 1.05s linear infinite;
}

.ttft-breakdown,
.prefill-progress {
  display: flex;
  width: 100%;
  height: 16px;
  margin-top: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--panel-2);
}
.ttft-seg,
.prefill-seg { height: 100%; width: 0; transition: width .18s linear; }
.ttft-seg.queue { background: var(--muted-2); opacity: .72; }
.ttft-seg.prefill { background: var(--flow-sys); opacity: .82; }
.ttft-seg.decode { background: var(--flow-ans); opacity: .9; }
.ttft-legend {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  margin-top: 8px;
  color: var(--muted-2);
  font-size: 9px;
}
.ttft-legend span { min-width: 0; }
.ttft-legend strong { display: block; margin-top: 2px; color: var(--text); font-size: 10px; font-variant-numeric: tabular-nums; }
.prefill-progress-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 14px;
  color: var(--muted);
  font-size: 10px;
}
.prefill-progress-head strong { color: var(--text); font-variant-numeric: tabular-nums; }
.prefill-progress { margin-top: 6px; height: 18px; }
.prefill-seg.cache { background: var(--muted-2); opacity: .62; }
.prefill-seg.done { background: var(--flow-user); opacity: .88; }

@media (max-width: 560px) {
  .ttft-legend { grid-template-columns: 1fr; }
}


/* Model Forensics */
.fingerprint-head { gap: 10px; align-items: flex-start; }
.compact-btn { min-height: 32px; padding: 6px 11px; border-radius: 9px; white-space: nowrap; }
.fingerprint-hero {
  display: flex; align-items: center; justify-content: space-between; gap: 14px;
  margin-top: 12px; padding: 13px; border: 1px solid var(--border); border-radius: 13px; background: var(--panel-2);
}
.fingerprint-hero > div:first-child { min-width: 0; }
.fingerprint-hero span, .fingerprint-hero small { display: block; color: var(--muted-2); font-size: 10px; }
.fingerprint-hero strong { display: block; margin: 4px 0 2px; font-size: 19px; overflow: hidden; text-overflow: ellipsis; }
.fingerprint-score-wrap { flex: 0 0 auto; text-align: right; }
.fingerprint-score-wrap > strong { font-size: 18px; font-variant-numeric: tabular-nums; }
.fingerprint-confidence.ok { border-color: rgba(103,211,145,.38); color: var(--success); }
.fingerprint-confidence.warn { border-color: rgba(255,204,102,.35); color: var(--warning); }
.fingerprint-confidence.neutral { color: var(--muted); }
.mono-value { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 11px; letter-spacing: .02em; }
.fingerprint-candidates { display: grid; gap: 9px; margin-top: 11px; }
.fp-candidate-label { display: grid; grid-template-columns: auto minmax(0,1fr) auto; gap: 7px; align-items: baseline; font-size: 11px; }
.fp-candidate-label span { font-weight: 650; }
.fp-candidate-label small { color: var(--muted-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.fp-candidate-label strong { font-variant-numeric: tabular-nums; color: var(--muted); }
.fp-candidate-track { height: 5px; background: var(--panel-3); border-radius: 999px; overflow: hidden; }
.fp-candidate-track i { display: block; height: 100%; border-radius: inherit; background: var(--text); opacity: .7; }
.fingerprint-subhead { margin-top: 14px; color: var(--muted); font-size: 10px; text-transform: uppercase; letter-spacing: .06em; }
.fingerprint-evidence { display: grid; gap: 0; margin-top: 5px; }
.fp-evidence-row { display: grid; grid-template-columns: 90px minmax(0,1fr); gap: 10px; padding: 7px 0; border-bottom: 1px solid var(--border); font-size: 11px; }
.fp-evidence-row:last-child { border-bottom: 0; }
.fp-evidence-row span { color: var(--muted-2); }
.fp-evidence-row strong { min-width: 0; overflow-wrap: anywhere; text-align: right; font-weight: 550; }
.fingerprint-actions { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 10px; }
.fingerprint-actions .text-btn { border: 1px solid var(--border); border-radius: 8px; padding: 6px 8px; }
.fingerprint-actions .text-btn:disabled { opacity: .42; cursor: not-allowed; }
.fingerprint-dialog { width: min(840px, calc(100vw - 28px)); }
.fingerprint-dialog-body { padding: 14px 18px; overflow: auto; max-height: 62dvh; }
.fingerprint-raw { margin: 0; padding: 13px; border: 1px solid var(--border); border-radius: 12px; background: var(--panel-2); color: var(--text); font: 11px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; white-space: pre-wrap; overflow-wrap: anywhere; }
@media (max-width: 560px) {
  .fingerprint-hero { align-items: flex-start; }
  .fp-evidence-row { grid-template-columns: 72px minmax(0,1fr); }
}

/* Persistent storage + export center */
.data-dialog { width: min(900px, calc(100vw - 28px)); }
.data-dialog-body { padding: 0 18px 18px; max-height: 68dvh; overflow: auto; }
.data-section { padding: 16px 0; border-bottom: 1px solid var(--border); }
.data-section:last-child { border-bottom: 0; }
.storage-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 8px; margin-top: 12px; }
.storage-grid > div { min-width: 0; padding: 10px; border: 1px solid var(--border); border-radius: 10px; background: var(--panel-2); }
.storage-grid span { display: block; color: var(--muted-2); font-size: 9px; }
.storage-grid strong { display: block; margin-top: 4px; font-size: 12px; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.storage-actions, .export-toolbar { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.storage-settings-grid { margin-top: 10px; }
.export-session-list { display: grid; gap: 6px; margin-top: 10px; max-height: 250px; overflow: auto; padding-right: 2px; }
.export-session-row { display: grid; grid-template-columns: auto minmax(0,1fr) auto; align-items: center; gap: 9px; min-height: 40px; padding: 7px 9px; border: 1px solid var(--border); border-radius: 10px; background: var(--panel-2); }
.export-session-row input { width: 16px; height: 16px; }
.export-session-main { min-width: 0; }
.export-session-main strong, .export-session-main small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.export-session-main strong { font-size: 11px; }
.export-session-main small { margin-top: 2px; color: var(--muted-2); font-size: 9px; }
.export-session-pin { color: var(--muted-2); font-size: 12px; }
.export-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 8px; margin-top: 12px; }
.chat-item-pin { border: 0; background: transparent; color: var(--muted-2); cursor: pointer; width: 28px; height: 28px; border-radius: 7px; }
.chat-item-pin:hover { background: var(--panel-3); color: var(--text); }
.chat-item-pin.pinned { color: var(--warning); }
@media (max-width: 620px) {
  .storage-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .export-grid { grid-template-columns: 1fr; }
}


/* Provider profiles + data audit + mobile-first refinements */
.profile-manager { border: 1px solid var(--border); border-radius: 14px; background: var(--panel-2); padding: 12px; }
.profile-manager-head { display:flex; align-items:flex-start; justify-content:space-between; gap:12px; }
.profile-manager-head > div:first-child { min-width:0; }
.profile-manager-head strong { display:block; font-size:13px; }
.profile-manager-head small { display:block; margin-top:4px; color:var(--muted-2); font-size:10px; line-height:1.45; }
.profile-actions { display:flex; flex-wrap:wrap; justify-content:flex-end; gap:6px; }
.profile-manager-grid { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin-top:12px; }
.danger-btn { color:var(--danger); }
.mobile-quickbar { display:none; }
.audit-grid { display:grid; grid-template-columns:repeat(4,minmax(0,1fr)); gap:8px; margin-top:12px; }
.audit-grid > div { min-width:0; padding:10px; border:1px solid var(--border); border-radius:10px; background:var(--panel-2); }
.audit-grid span { display:block; color:var(--muted-2); font-size:9px; text-transform:uppercase; letter-spacing:.05em; }
.audit-grid strong { display:block; margin-top:4px; font-size:12px; font-variant-numeric:tabular-nums; overflow-wrap:anywhere; }
.audit-findings { display:grid; gap:6px; margin-top:10px; max-height:220px; overflow:auto; }
.audit-finding { display:grid; grid-template-columns:54px minmax(0,1fr); gap:8px; padding:8px 9px; border:1px solid var(--border); border-radius:9px; background:var(--panel-2); font-size:10px; line-height:1.45; }
.audit-finding strong { font-size:9px; letter-spacing:.04em; }
.audit-finding.error strong { color:var(--danger); }
.audit-finding.warn strong { color:var(--warning); }
.audit-finding.info strong { color:var(--muted); }

@media (max-width: 900px) {
  .main-pane { grid-template-rows:auto auto minmax(0,1fr) auto; }
  .mobile-quickbar {
    display:grid;
    grid-template-columns:1.05fr 1.25fr .82fr;
    gap:7px;
    padding:7px 10px;
    border-bottom:1px solid var(--border);
    background:var(--bg);
    z-index:4;
  }
  .mobile-quickbar label { min-width:0; display:grid; gap:3px; color:var(--muted-2); font-size:9px; }
  .mobile-quickbar select { min-width:0; width:100%; height:36px; border:1px solid var(--border); border-radius:9px; background:var(--panel); color:var(--text); padding:0 7px; font-size:12px; }
  .stats-drawer { width:min(var(--drawer-w),100vw); }
  .message-actions { opacity:1; }
}

@media (max-width: 620px) {
  html, body, .app-shell { min-height:100%; }
  body { overscroll-behavior:none; }
  .topbar { height:56px; padding-left:max(8px, env(safe-area-inset-left)); padding-right:max(8px, env(safe-area-inset-right)); }
  .brand { font-size:14px; }
  .connection-badge { max-width:170px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap; }
  .wide-btn { min-width:54px; height:40px; }
  .mobile-quickbar { padding-left:max(8px, env(safe-area-inset-left)); padding-right:max(8px, env(safe-area-inset-right)); }
  .chat-viewport { scroll-padding-bottom:180px; }
  .messages { padding:14px 12px calc(190px + env(safe-area-inset-bottom, 0px)); }
  .welcome { padding:24px 16px calc(180px + env(safe-area-inset-bottom, 0px)); }
  .welcome h1 { font-size:30px; }
  .composer-shell { padding:10px 8px calc(7px + env(safe-area-inset-bottom, 0px)); background:linear-gradient(to bottom, transparent, var(--bg) 24%, var(--bg)); }
  .composer { border-radius:19px; }
  .composer textarea { min-height:52px; max-height:36dvh; padding:13px 14px 6px; font-size:16px; }
  .composer-footer { padding:5px 7px 7px 12px; }
  .composer-meta { font-size:10px; }
  .send-btn { width:42px; height:42px; }
  .disclaimer { margin-top:5px; font-size:9px; }
  .sidebar { width:min(90vw,330px); padding-top:env(safe-area-inset-top, 0px); padding-bottom:env(safe-area-inset-bottom, 0px); }
  .stats-drawer { width:100vw; border-left:0; padding-top:env(safe-area-inset-top, 0px); padding-bottom:env(safe-area-inset-bottom, 0px); }
  .drawer-header { padding:12px 14px; }
  .stats-scroll { padding:10px; }
  .metric-card { min-height:88px; padding:10px; }
  .metric-card strong { font-size:18px; }
  .settings-dialog, .data-dialog, .fingerprint-dialog {
    width:100vw;
    max-width:none;
    max-height:94dvh;
    margin:auto 0 0 0;
    border-radius:20px 20px 0 0;
    border-left:0; border-right:0; border-bottom:0;
  }
  .settings-dialog form { max-height:94dvh; }
  .modal-header { padding:14px 14px 12px; padding-left:max(14px, env(safe-area-inset-left)); padding-right:max(14px, env(safe-area-inset-right)); }
  .settings-grid { padding:12px 14px; gap:11px; }
  .modal-footer { padding:10px 14px calc(10px + env(safe-area-inset-bottom, 0px)); }
  .data-dialog-body, .fingerprint-dialog-body { max-height:none; padding:0 14px 14px; }
  .profile-manager-grid { grid-template-columns:1fr; }
  .profile-manager-head { display:grid; }
  .profile-actions { justify-content:flex-start; }
  .profile-actions .secondary-btn { min-height:40px; }
  .audit-grid { grid-template-columns:repeat(2,minmax(0,1fr)); }
  .storage-actions .secondary-btn, .export-grid .secondary-btn, .export-toolbar .text-btn { min-height:42px; }
  .export-session-row { min-height:46px; }
  input, select, textarea { font-size:16px; }
}

@media (max-width: 390px) {
  .mobile-quickbar { grid-template-columns:1fr 1fr; }
  .mobile-quickbar label:first-child { grid-column:1 / -1; }
  .metric-grid { grid-template-columns:1fr 1fr; gap:7px; }
  .audit-grid, .storage-grid { grid-template-columns:1fr 1fr; }
}