:root {
  color-scheme: dark;
  --bg: #121212;
  --surface: #1e1e1e;
  --surface-2: #252525;
  --surface-3: #2d2d2d;
  --line: #343434;
  --line-strong: #454545;
  --text: #e0e0e0;
  --muted: #a0a0a0;
  --faint: #747474;
  --accent: #00adb5;
  --accent-strong: #28d7df;
  --accent-soft: rgba(0, 173, 181, 0.16);
  --danger: #ff8a80;
  --warn: #f6c177;
  --ok: #43d17a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, "Malgun Gothic", sans-serif;
}

.app {
  display: grid;
  grid-template-columns: 260px minmax(480px, 1fr) minmax(360px, 38vw);
  min-height: 100vh;
}

.sidebar,
.workspace,
.preview {
  padding: 18px;
  border-right: 1px solid var(--line);
}

.sidebar,
.preview {
  background: var(--surface);
}

.preview {
  display: grid;
  grid-template-rows: minmax(260px, 52vh) minmax(240px, 1fr);
  gap: 14px;
  height: 100vh;
  overflow: hidden;
}

.workspace {
  background: var(--bg);
  min-height: 100vh;
  overflow: auto;
}

.brand {
  display: flex;
  align-items: center;
  margin-bottom: 18px;
}

.logout-button {
  width: 100%;
  margin: 0 0 14px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 19px;
}

h2 {
  font-size: 16px;
}

.brand p,
.panel-head span,
.preview-head span,
.health {
  color: var(--muted);
  font-size: 13px;
}

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
  margin-bottom: 18px;
  padding: 4px;
  background: var(--surface-2);
  border: 1px solid var(--line);
}

.sidebar-control {
  margin-bottom: 18px;
  padding: 12px;
  background: var(--surface-2);
  border: 1px solid var(--line);
}

.tab-button,
button {
  border: 1px solid transparent;
  background: var(--accent);
  color: #061314;
  padding: 10px 12px;
  font-weight: 700;
  cursor: pointer;
}

.tab-button {
  background: transparent;
  color: var(--muted);
  text-align: center;
  padding: 8px 10px;
}

.tab-button.active {
  background: var(--accent-soft);
  border-color: rgba(0, 173, 181, 0.42);
  color: var(--accent-strong);
}

button:hover {
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 3px rgba(0, 173, 181, 0.12);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.control-panel {
  display: grid;
  gap: 12px;
  padding: 14px;
  background: var(--surface);
  border: 1px solid var(--line);
}

label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: var(--muted);
}

textarea,
input,
select {
  width: 100%;
  border: 1px solid var(--line-strong);
  background: #171717;
  color: var(--text);
  padding: 10px 11px;
  font: inherit;
  outline: none;
}

textarea:focus,
input:focus,
select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(0, 173, 181, 0.1);
}

textarea {
  resize: vertical;
  line-height: 1.45;
}

.prompt-details {
  border: 1px solid var(--line);
  background: var(--surface-2);
  padding: 0;
}

.prompt-details summary {
  cursor: pointer;
  color: var(--text);
  font-size: 13px;
  font-weight: 700;
  padding: 10px 12px;
}

.prompt-details label {
  padding: 0 12px 12px;
}

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

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

.check input {
  width: auto;
}

.button-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.secondary {
  background: var(--surface-3);
  color: var(--text);
  border-color: var(--line-strong);
}

.danger-button {
  background: #4a1f1f;
  color: #ffd7d2;
  border-color: rgba(255, 138, 128, 0.42);
}

.danger-button:hover {
  border-color: var(--danger);
  box-shadow: 0 0 0 3px rgba(255, 138, 128, 0.12);
}

.source-management {
  margin-top: 12px;
}

.ghost-button {
  background: transparent;
  color: var(--accent-strong);
  border: 1px solid rgba(0, 173, 181, 0.32);
  padding: 7px 10px;
  font-size: 12px;
}

.health {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  line-height: 1.45;
}

.status-row {
  display: grid;
  grid-template-columns: 10px 62px 1fr;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

.status-row strong {
  color: var(--text);
  font-size: 12px;
  font-weight: 600;
  overflow-wrap: anywhere;
}

.status-led {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--faint);
  box-shadow: 0 0 0 3px rgba(116, 116, 116, 0.12);
}

.status-led.ok {
  background: var(--ok);
  box-shadow: 0 0 0 3px rgba(67, 209, 122, 0.12);
}

.status-led.fail {
  background: var(--danger);
  box-shadow: 0 0 0 3px rgba(255, 138, 128, 0.12);
}

.status-detail {
  color: var(--faint);
  font-size: 12px;
  overflow-wrap: anywhere;
  margin-top: 5px;
}

.panel-head,
.preview-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: baseline;
  margin-bottom: 12px;
}

.status-box,
.chat-answer {
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 14px;
  margin-top: 14px;
  margin-bottom: 16px;
  line-height: 1.5;
  font-size: 14px;
}

.status-box {
  min-height: 150px;
}

.failed-chunks {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.failed-chunks strong {
  color: var(--warn);
  font-size: 13px;
}

.failed-chunk {
  display: grid;
  gap: 4px;
  padding: 8px;
  border: 1px solid rgba(255, 193, 7, 0.28);
  background: rgba(255, 193, 7, 0.06);
  color: var(--muted);
  font-size: 12px;
}

.progress-wrap {
  width: 100%;
  height: 12px;
  background: #171717;
  border: 1px solid var(--line);
  margin-top: 14px;
  overflow: hidden;
}

.progress-bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-strong));
  transition: width 180ms ease;
}

.chat-toolbar {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin: 12px 0 0;
}

.chat-answer {
  display: grid;
  gap: 12px;
  min-height: 180px;
}

.message {
  display: grid;
  gap: 6px;
  max-width: 94%;
}

.message.user {
  justify-self: end;
}

.message.assistant {
  justify-self: start;
}

.message-label {
  color: var(--faint);
  font-size: 12px;
  font-weight: 700;
}

.message-body {
  border: 1px solid var(--line);
  background: var(--surface-2);
  padding: 12px;
  white-space: pre-wrap;
}

.message.user .message-body {
  background: var(--accent-soft);
  border-color: rgba(0, 173, 181, 0.36);
}

.message.pending .message-body {
  color: var(--muted);
}

.chat-answer p,
.chat-answer ul {
  margin: 0 0 10px;
}

.chat-answer ul {
  padding-left: 22px;
}

.chat-answer li {
  margin-bottom: 8px;
}

.chat-answer code {
  background: #111;
  border: 1px solid var(--line);
  padding: 1px 4px;
}

.table-scroll {
  width: 100%;
  overflow: auto;
  border: 1px solid var(--line);
  background: #151515;
  margin: 8px 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th,
td {
  border: 1px solid var(--line);
  padding: 7px 8px;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--surface-3);
  color: var(--text);
  font-weight: 700;
}

td {
  color: var(--text);
}

.MathJax,
.mjx-container {
  color: var(--text) !important;
}

.chat-status {
  color: var(--warn);
  font-size: 13px;
  line-height: 1.4;
  min-height: 18px;
  margin: 12px 0 8px;
}

.sources-head {
  margin-bottom: 10px;
}

.result-list {
  display: grid;
  gap: 10px;
  align-content: start;
}

.result {
  border: 1px solid var(--line);
  padding: 12px;
  background: var(--surface);
  cursor: pointer;
}

.result:hover,
.result.active {
  border-color: var(--accent);
  box-shadow: inset 3px 0 0 var(--accent);
}

.result-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 12px;
}

.pill {
  border: 1px solid var(--line);
  padding: 2px 6px;
  background: var(--surface-2);
  color: var(--muted);
}

.result-text {
  line-height: 1.45;
  font-size: 14px;
  white-space: pre-wrap;
  display: -webkit-box;
  -webkit-line-clamp: 5;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.table-preview {
  margin-top: 8px;
}

.thumb-button {
  width: 100%;
  max-height: 150px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #161616;
  padding: 0;
  margin: 0 0 10px;
  display: block;
}

.thumb-button img {
  width: 100%;
  display: block;
}

.preview-pane,
.sources-pane {
  min-height: 0;
}

.preview-pane {
  display: grid;
  grid-template-rows: auto 1fr;
}

.sources-pane {
  display: grid;
  grid-template-rows: auto 1fr;
  border-top: 1px solid var(--line);
  padding-top: 14px;
  min-height: 0;
}

.sources-pane .result-list {
  overflow: auto;
  padding-right: 4px;
}

.preview-body {
  min-height: 0;
  display: grid;
  place-items: center;
  color: var(--muted);
  background: #161616;
  border: 1px solid var(--line);
  overflow: auto;
}

.preview-body img {
  width: 100%;
  height: auto;
  display: block;
  background: #fff;
}

.preview-body pre {
  width: 100%;
  align-self: start;
  margin: 0;
  padding: 14px;
  white-space: pre-wrap;
  color: var(--text);
}

.error {
  color: var(--danger);
}

.login-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.login-shell {
  width: min(420px, calc(100vw - 32px));
}

.login-panel {
  display: grid;
  gap: 16px;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
}

.login-panel p {
  color: var(--muted);
  margin-top: 6px;
  line-height: 1.4;
}

@media (max-width: 1100px) {
  .app {
    grid-template-columns: 260px 1fr;
  }

  .preview {
    grid-column: 1 / -1;
    border-top: 1px solid var(--line);
    height: auto;
    min-height: 85vh;
  }
}

@media (max-width: 720px) {
  .app {
    grid-template-columns: 1fr;
  }

  .sidebar,
  .workspace,
  .preview {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    height: auto;
    overflow: visible;
  }

  .grid,
  .button-row {
    grid-template-columns: 1fr;
  }
}