:root {
  --bg: #f4ecde;
  --bg-strong: #fffaf2;
  --panel: rgba(255, 251, 245, 0.88);
  --panel-strong: rgba(255, 255, 255, 0.96);
  --ink: #18202a;
  --muted: #697485;
  --line: rgba(24, 32, 42, 0.1);
  --line-strong: rgba(24, 32, 42, 0.16);
  --teal: #155e63;
  --teal-soft: rgba(21, 94, 99, 0.1);
  --teal-strong: #0f4c51;
  --sand: #f1c06a;
  --orange: #c7642f;
  --shadow: 0 24px 60px rgba(18, 31, 43, 0.12);
  --shadow-soft: 0 10px 24px rgba(18, 31, 43, 0.08);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(21, 94, 99, 0.12), transparent 28%),
    radial-gradient(circle at bottom left, rgba(241, 192, 106, 0.16), transparent 32%),
    linear-gradient(180deg, #f8f2e7 0%, var(--bg) 100%);
  font-family: "Segoe UI Variable Text", "Segoe UI", Tahoma, sans-serif;
  line-height: 1.55;
}

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

.page-shell {
  width: min(1440px, calc(100vw - 28px));
  margin: 18px auto 28px;
}

.topbar,
.card,
.chat-card {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.topbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 18px;
  align-items: center;
  padding: 22px 24px;
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-mark {
  width: 68px;
  height: 68px;
  display: grid;
  place-items: center;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--teal), #20384a);
  color: #fff9f1;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 2.4rem;
  box-shadow: 0 16px 38px rgba(21, 94, 99, 0.22);
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1.08;
}

h1 {
  font-size: clamp(2rem, 3.2vw, 3.2rem);
}

h2 {
  font-size: 1.42rem;
}

.brand-copy,
.soft-copy {
  margin: 8px 0 0;
  color: var(--muted);
}

.topbar-meta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.mini-stat {
  min-width: 110px;
  padding: 10px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(24, 32, 42, 0.08);
  text-align: center;
}

.mini-label {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
  margin-bottom: 2px;
}

.topbar-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.workspace {
  margin-top: 18px;
  display: grid;
  grid-template-columns: minmax(320px, 360px) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.sidebar {
  display: grid;
  gap: 16px;
}

.card,
.chat-card {
  padding: 18px;
}

.chat-card {
  min-height: calc(100vh - 150px);
  display: flex;
  flex-direction: column;
}

.card-head,
.chat-head,
.status-row,
.form-actions,
.composer-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.status-list {
  margin-top: 12px;
  display: grid;
}

.status-row {
  padding: 10px 0;
  border-bottom: 1px solid var(--line);
}

.status-row:last-child {
  border-bottom: 0;
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 78px;
  padding: 7px 11px;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 700;
  background: rgba(24, 32, 42, 0.08);
}

.pill[data-tone='good'] {
  background: rgba(21, 94, 99, 0.12);
  color: var(--teal);
}

.pill[data-tone='warn'] {
  background: rgba(199, 100, 47, 0.12);
  color: var(--orange);
}

.button {
  border: 0;
  border-radius: 999px;
  padding: 11px 16px;
  cursor: pointer;
  transition:
    transform 140ms ease,
    opacity 140ms ease,
    box-shadow 140ms ease,
    background-color 140ms ease;
}

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

.button:disabled {
  opacity: 0.66;
  cursor: not-allowed;
  transform: none;
}

.button.primary {
  background: linear-gradient(135deg, var(--teal), var(--teal-strong));
  color: #fff8f1;
  box-shadow: 0 14px 34px rgba(21, 94, 99, 0.2);
}

.button.ghost {
  background: rgba(255, 255, 255, 0.68);
  color: var(--ink);
  border: 1px solid rgba(24, 32, 42, 0.08);
}

.button.small {
  padding: 8px 12px;
  font-size: 0.92rem;
}

.memory-list {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.memory-item,
.memory-empty,
.empty-state,
.message {
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: var(--panel-strong);
  box-shadow: var(--shadow-soft);
}

.memory-item {
  padding: 12px 13px;
}

.memory-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.82rem;
}

.memory-category {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--teal-soft);
  color: var(--teal);
}

.memory-text {
  margin: 0;
  color: var(--ink);
}

.memory-empty,
.empty-state {
  padding: 18px;
  color: var(--muted);
  text-align: center;
}

.form-stack {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  font-weight: 700;
}

.text-input,
textarea {
  width: 100%;
  border-radius: var(--radius-md);
  border: 1px solid var(--line);
  background: var(--panel-strong);
  color: var(--ink);
  padding: 12px 14px;
  outline: none;
}

textarea {
  resize: vertical;
  min-height: 88px;
}

.text-input:focus,
textarea:focus {
  border-color: rgba(21, 94, 99, 0.34);
  box-shadow: 0 0 0 4px rgba(21, 94, 99, 0.1);
}

.details-card summary {
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

.details-card summary::-webkit-details-marker {
  display: none;
}

.advanced-block {
  margin-top: 14px;
}

.models-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 14px 0 10px;
}

.model-chip,
.prompt-chip {
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.76);
  color: var(--ink);
  cursor: pointer;
  transition:
    transform 140ms ease,
    border-color 140ms ease,
    background-color 140ms ease;
}

.model-chip,
.prompt-chip {
  padding: 9px 13px;
}

.model-chip:hover,
.prompt-chip:hover {
  transform: translateY(-1px);
  border-color: rgba(21, 94, 99, 0.24);
}

.model-chip[data-selected='true'] {
  background: linear-gradient(135deg, rgba(21, 94, 99, 0.16), rgba(241, 192, 106, 0.18));
  border-color: rgba(21, 94, 99, 0.3);
}

.command-list {
  display: grid;
  gap: 10px;
  margin: 14px 0;
}

.command-list code {
  display: block;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.74);
  overflow: auto;
  font-family: Consolas, "SFMono-Regular", monospace;
}

.workspace-path {
  word-break: break-word;
}

.prompt-strip {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 16px 0;
}

.messages {
  flex: 1;
  min-height: 420px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  overflow: auto;
  padding-inline-end: 6px;
}

.message {
  padding: 16px 18px;
}

.message-user {
  align-self: flex-end;
  width: min(86%, 760px);
  color: #fff8f1;
  background: linear-gradient(135deg, var(--teal), #234351);
  border-color: rgba(21, 94, 99, 0.18);
}

.message-assistant {
  align-self: flex-start;
  width: min(92%, 860px);
}

.message-system {
  align-self: center;
  width: 100%;
  background: rgba(241, 192, 106, 0.18);
}

.message-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 9px;
  color: var(--muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.message-user .message-meta {
  color: rgba(255, 248, 241, 0.74);
}

.message-body {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: Consolas, "SFMono-Regular", monospace;
  font-size: 0.96rem;
}

.message-refs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.message-ref {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--teal-soft);
  color: var(--teal);
  border: 1px solid rgba(21, 94, 99, 0.14);
  font-size: 0.82rem;
  font-family: Consolas, "SFMono-Regular", monospace;
}

.message[data-streaming='true'] .message-body::after {
  content: '';
  display: inline-block;
  width: 0.62ch;
  height: 1.06em;
  margin-right: 4px;
  vertical-align: -0.1em;
  background: rgba(21, 94, 99, 0.75);
  animation: blink 900ms steps(1) infinite;
}

.message-user[data-streaming='true'] .message-body::after {
  background: rgba(255, 248, 241, 0.82);
}

.composer {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.composer-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 700;
}

@keyframes blink {
  0%,
  49% {
    opacity: 1;
  }

  50%,
  100% {
    opacity: 0;
  }
}

@media (max-width: 1120px) {
  .workspace {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 820px) {
  .page-shell {
    width: min(100vw - 16px, 100%);
  }

  .topbar,
  .topbar-actions,
  .topbar-meta,
  .card-head,
  .chat-head,
  .form-actions,
  .composer-footer {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: stretch;
  }

  .brand-block {
    align-items: flex-start;
  }

  .message-user,
  .message-assistant {
    width: 100%;
  }
}