:root {
  color-scheme: light;
  --bg: #f4efe4;
  --bg-accent: #e9ddc7;
  --panel: rgba(255, 251, 244, 0.88);
  --panel-border: rgba(67, 50, 30, 0.14);
  --text: #24180d;
  --muted: #6c5841;
  --accent: #b14827;
  --accent-strong: #7f2d1a;
  --success: #275d34;
  --pending: #8f6a15;
  --user-bubble: #fffaf0;
  --assistant-bubble: #f5ead8;
  --system-bubble: #efe3d2;
  --shadow: 0 18px 40px rgba(48, 33, 16, 0.08);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.75), transparent 30%),
    linear-gradient(135deg, var(--bg), var(--bg-accent));
}

.app-shell {
  width: min(980px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 40px 0 56px;
}

.hero {
  margin-bottom: 24px;
}

.eyebrow {
  margin: 0 0 8px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  font-size: 0.8rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  line-height: 0.95;
}

.hero-copy {
  max-width: 680px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.status-card,
.summary-card,
.composer-card,
.timeline-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.status-card {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  padding: 20px 22px;
  margin-bottom: 18px;
}

.summary-card {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding: 16px 22px;
  margin-bottom: 18px;
}

.summary-block {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.summary-label {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.summary-value {
  font-size: 1rem;
  font-weight: 700;
  overflow-wrap: anywhere;
}

.diagnostics-panel {
  margin-bottom: 18px;
  padding: 14px 18px;
  background: rgba(255, 251, 244, 0.68);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-md);
}

.diagnostics-panel summary {
  cursor: pointer;
  color: var(--muted);
  font-weight: 700;
}

.diagnostics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 14px 0 0;
}

.diagnostics-grid div {
  min-width: 0;
}

.diagnostics-grid dt {
  color: var(--muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.diagnostics-grid dd {
  margin: 4px 0 0;
  overflow-wrap: anywhere;
  font-size: 0.92rem;
  font-weight: 700;
}

.status-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.status-label {
  color: var(--muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  min-height: 32px;
  padding: 0 12px;
  border-radius: 999px;
  font-weight: 600;
  background: rgba(108, 88, 65, 0.1);
}

.status-pill.is-pending {
  color: var(--pending);
  background: rgba(143, 106, 21, 0.12);
}

.status-pill.is-ready {
  color: var(--success);
  background: rgba(39, 93, 52, 0.12);
}

.status-detail {
  font-size: 1rem;
}

.composer-card {
  padding: 22px;
  margin-bottom: 18px;
}

.composer-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.bot-switcher-panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.bot-select {
  min-height: 48px;
  font-weight: 700;
}

.control-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.composer-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.composer-label,
.timeline-header h2 {
  font-size: 1rem;
  font-weight: 700;
}

textarea,
select,
input {
  width: 100%;
  border: 1px solid rgba(67, 50, 30, 0.12);
  border-radius: var(--radius-md);
  padding: 16px;
  font: inherit;
  background: rgba(255, 255, 255, 0.72);
  color: var(--text);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

textarea:focus,
select:focus,
input:focus {
  outline: 2px solid rgba(177, 72, 39, 0.2);
  border-color: rgba(177, 72, 39, 0.34);
}

.composer-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.auth-card {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  padding: 22px;
  margin-bottom: 18px;
}

.auth-card.is-hidden {
  display: none;
}

.login-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) auto auto;
  gap: 14px;
  align-items: end;
}

.remember-device {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  font-weight: 700;
  white-space: nowrap;
}

.remember-device input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

.auth-message {
  min-height: 1.3em;
  margin: 12px 0 0;
  color: var(--muted);
}

.auth-message.is-error {
  color: var(--accent-strong);
}

button {
  appearance: none;
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  transition: transform 140ms ease, opacity 140ms ease, background 140ms ease;
}

button:hover {
  transform: translateY(-1px);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
  transform: none;
}

.primary-button {
  color: #fffdf9;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
}

.secondary-button {
  color: var(--text);
  background: rgba(67, 50, 30, 0.08);
}

.secondary-button.is-active-stop {
  color: #fffdf9;
  background: linear-gradient(135deg, #8d1f1f, var(--accent-strong));
}

.timeline-card {
  padding: 22px;
}

.timeline-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.timeline-header h2 {
  margin: 0;
}

.timeline-hint {
  color: var(--muted);
  font-size: 0.95rem;
}

.timeline {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.interaction-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 14px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(67, 50, 30, 0.1);
  background: rgba(255, 255, 255, 0.38);
}

.interaction-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 8px;
  border-bottom: 1px dashed rgba(67, 50, 30, 0.14);
}

.interaction-title {
  font-weight: 700;
}

.interaction-meta {
  color: var(--muted);
  font-size: 0.88rem;
}

.interaction-messages {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.timeline-empty {
  display: none;
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px dashed rgba(67, 50, 30, 0.16);
  color: var(--muted);
  background: rgba(255, 255, 255, 0.45);
  margin-bottom: 12px;
}

.timeline-empty.is-visible {
  display: block;
}

.message {
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(67, 50, 30, 0.08);
  background: var(--system-bubble);
  position: relative;
}

.message[data-kind="user"] {
  background: var(--user-bubble);
}

.message[data-kind="assistant"] {
  background: var(--assistant-bubble);
}

.message[data-active-stream="true"] {
  border-color: rgba(177, 72, 39, 0.42);
  box-shadow: inset 3px 0 0 var(--accent);
}

.message-meta {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 10px;
  font-size: 0.9rem;
  color: var(--muted);
}

.message-author {
  font-weight: 700;
  color: var(--text);
}

.message-state {
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(67, 50, 30, 0.08);
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.message[data-status="streaming"] .message-state,
.message[data-status="tool:started"] .message-state,
.message[data-status="tool:waiting_tool"] .message-state {
  color: var(--pending);
  background: rgba(143, 106, 21, 0.12);
}

.message[data-status="completed"] .message-state,
.message[data-status="tool:completed"] .message-state {
  color: var(--success);
  background: rgba(39, 93, 52, 0.12);
}

.message[data-status="failed"] .message-state,
.message[data-status="tool:failed"] .message-state {
  color: #8d1f1f;
  background: rgba(141, 31, 31, 0.12);
}

.message[data-status="cancelled"] .message-state,
.message[data-status="aborted"] .message-state {
  color: #6b455d;
  background: rgba(107, 69, 93, 0.12);
}

.message-content {
  min-height: 1.4em;
  margin: 0;
  word-break: break-word;
  font: inherit;
  line-height: 1.45;
}

.message-content.is-plain {
  white-space: pre-wrap;
}

.message-content.is-markdown p,
.message-content.is-markdown ul,
.message-content.is-markdown pre {
  margin: 0 0 10px;
}

.message-content.is-markdown p:last-child,
.message-content.is-markdown ul:last-child,
.message-content.is-markdown pre:last-child {
  margin-bottom: 0;
}

.message-content.is-markdown ul {
  padding-left: 22px;
}

.message-content.is-markdown li + li {
  margin-top: 4px;
}

.message-content.is-markdown code {
  padding: 2px 5px;
  border-radius: 6px;
  background: rgba(67, 50, 30, 0.1);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.92em;
}

.message-content.is-markdown pre {
  overflow-x: auto;
  padding: 12px;
  border-radius: var(--radius-sm);
  background: rgba(36, 24, 13, 0.08);
  white-space: pre;
}

.message-content.is-markdown pre code {
  padding: 0;
  background: transparent;
}

.message-content.is-markdown a {
  color: var(--accent-strong);
  font-weight: 700;
  text-decoration-thickness: 2px;
}

.typing-indicator {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  min-width: 34px;
  min-height: 1.4em;
  vertical-align: middle;
}

.typing-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.35;
  animation: typing-pulse 1.1s ease-in-out infinite;
}

.typing-dot:nth-child(2) {
  animation-delay: 0.16s;
}

.typing-dot:nth-child(3) {
  animation-delay: 0.32s;
}

@keyframes typing-pulse {
  0%,
  80%,
  100% {
    transform: translateY(0);
    opacity: 0.35;
  }

  40% {
    transform: translateY(-3px);
    opacity: 0.95;
  }
}

@media (max-width: 760px) {
  .app-shell {
    width: min(100vw, calc(100vw - 20px));
    padding-top: 24px;
    padding-bottom: 28px;
  }

  .status-card {
    grid-template-columns: 1fr;
  }

  .summary-card {
    grid-template-columns: 1fr;
  }

  .diagnostics-grid {
    grid-template-columns: 1fr;
  }

  .control-grid {
    grid-template-columns: 1fr;
  }

  .login-form {
    grid-template-columns: 1fr;
  }

  .composer-actions,
  .timeline-header {
    flex-direction: column;
    align-items: stretch;
  }
}