:root {
  color-scheme: dark;
  --bg: #000000;
  --panel: #0b0b0b;
  --panel-2: #111111;
  --text: #f5f5f5;
  --muted: #a7a7a7;
  --accent: #ffffff;
  --accent-2: #d0d0d0;
  --line: #2b2b2b;
  --danger: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
textarea,
input,
select {
  font: inherit;
}

button {
  border: 0;
  background: var(--accent);
  color: #000000;
  font-weight: 700;
  cursor: pointer;
  min-height: 40px;
  border-radius: 6px;
  padding: 0 16px;
}

button:disabled {
  cursor: wait;
  opacity: 0.65;
}

textarea {
  width: 100%;
  resize: vertical;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel-2);
  color: var(--text);
  padding: 12px;
  outline: none;
}

select,
input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel-2);
  color: var(--text);
  padding: 10px 12px;
  outline: none;
}

textarea:focus {
  border-color: var(--accent);
}

.app-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 16px;
  height: 100vh;
  padding: 16px;
}

.chat-panel,
.side-panel,
.tool {
  min-width: 0;
}

.chat-panel {
  display: grid;
  grid-template-rows: auto 1fr auto;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  padding: 16px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  color: var(--accent);
  font-size: 28px;
}

h2 {
  font-size: 16px;
}

.topbar p,
label,
.status {
  color: var(--muted);
}

.status {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 10px;
  white-space: nowrap;
}

.messages {
  overflow: auto;
  padding: 16px;
}

.message {
  display: grid;
  gap: 6px;
  margin-bottom: 16px;
}

.speaker {
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.message.user .speaker {
  color: var(--accent-2);
}

.message.ai .speaker {
  color: var(--accent);
}

.bubble {
  width: fit-content;
  max-width: min(860px, 100%);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-2);
  padding: 12px;
  line-height: 1.45;
}

.bubble p {
  margin: 0;
}

.bubble p + p,
.bubble p + .code-block,
.bubble .code-block + p {
  margin-top: 10px;
}

.bubble h3,
.bubble h4,
.bubble h5 {
  margin: 0 0 8px;
}

.bubble ul {
  margin: 8px 0;
  padding-left: 22px;
}

.inline-code {
  border: 1px solid var(--line);
  border-radius: 4px;
  background: #000000;
  color: var(--accent);
  padding: 1px 4px;
}

.code-block {
  position: relative;
  overflow: auto;
  margin: 10px 0 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #000000;
}

.copy-code {
  position: absolute;
  top: 6px;
  right: 6px;
  min-height: 28px;
  border: 1px solid var(--line);
  background: #111111;
  color: var(--text);
  font-size: 12px;
  padding: 0 8px;
}

.code-block code {
  display: block;
  white-space: pre;
  padding: 12px;
  color: #e8eef4;
}

.code-lang {
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 12px;
  padding: 6px 10px;
  text-transform: uppercase;
}

.message.user .bubble {
  white-space: pre-wrap;
}

.message.user .bubble {
  margin-left: auto;
}

.source-link {
  min-height: 0;
  border-radius: 0;
  background: transparent;
  color: var(--accent);
  padding: 0;
  text-decoration: underline;
}

.composer {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding: 12px;
}

.upload-row {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

#image-upload {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  pointer-events: none;
}

.upload-button {
  display: inline-grid;
  min-height: 34px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
  padding: 0 12px;
}

.upload-preview {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-width: 0;
}

.upload-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  max-width: 260px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel-2);
  padding: 4px 8px 4px 4px;
  color: var(--muted);
  font-size: 12px;
}

.upload-chip img {
  width: 28px;
  height: 28px;
  border-radius: 999px;
  object-fit: cover;
}

.upload-chip span {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.side-panel {
  display: grid;
  align-content: start;
  gap: 16px;
  overflow: auto;
}

.tool {
  display: grid;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 14px;
}

.row {
  display: flex;
  align-items: center;
  gap: 12px;
}

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

.image-output {
  display: grid;
  min-height: 180px;
  place-items: center;
  overflow: hidden;
  border: 1px dashed var(--line);
  border-radius: 8px;
  background: var(--panel-2);
}

.generated-image {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 6px;
}

.image-bubble {
  display: grid;
  gap: 10px;
}

.image-caption {
  color: var(--muted);
  font-size: 13px;
}

.loading,
.error {
  color: var(--muted);
  padding: 16px;
  text-align: center;
}

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

dialog {
  width: min(720px, calc(100vw - 32px));
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--text);
  padding: 0;
}

dialog::backdrop {
  background: rgb(0 0 0 / 0.6);
}

dialog header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  padding: 12px 14px;
}

#close-sources {
  min-height: 32px;
  width: 32px;
  padding: 0;
}

#sources-list {
  display: grid;
  gap: 10px;
  max-height: 60vh;
  overflow: auto;
  padding: 14px;
}

.source-item {
  display: grid;
  gap: 4px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--text);
  padding: 10px;
  text-decoration: none;
}

.source-item span {
  color: var(--muted);
}

@media (max-width: 920px) {
  .app-shell {
    grid-template-columns: 1fr;
    height: auto;
    min-height: 100vh;
  }

  .chat-panel {
    min-height: 70vh;
  }
}

@media (max-width: 620px) {
  .app-shell {
    padding: 8px;
  }

  .topbar,
  .composer {
    grid-template-columns: 1fr;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .composer {
    display: grid;
  }
}