src/style.css

:root {
  color-scheme: dark;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  background: #10100f;
  color: #f4f0e8;
  line-height: 1.4;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(57, 69, 58, 0.22), transparent 360px),
    #10100f;
}

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

button {
  border: 0;
}

.app {
  width: min(1180px, calc(100vw - 32px));
  margin: 0 auto;
  padding: 24px 0 36px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

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

.mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  border: 1px solid rgba(244, 240, 232, 0.16);
  border-radius: 8px;
  background: #d7ff7a;
  color: #15170f;
  font-weight: 800;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: 19px;
  font-weight: 720;
  letter-spacing: 0;
}

.subtle {
  color: #a7a093;
  font-size: 13px;
}

.actions {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
}

.icon-button,
.button {
  display: inline-flex;
  min-height: 38px;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 8px;
  padding: 0 14px;
  border: 1px solid rgba(244, 240, 232, 0.12);
  background: #24231f;
  color: #f4f0e8;
  cursor: pointer;
}

.icon-button {
  width: 38px;
  padding: 0;
}

.icon-button svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

.settings-popover {
  position: absolute;
  z-index: 10;
  top: 46px;
  right: 0;
  width: min(430px, calc(100vw - 32px));
  padding: 16px;
  box-shadow: 0 18px 42px rgba(0, 0, 0, 0.38);
}

.settings-popover h2 {
  margin-bottom: 8px;
  font-size: 15px;
  font-weight: 720;
}

.button.primary {
  background: #d7ff7a;
  border-color: #d7ff7a;
  color: #15170f;
  font-weight: 740;
}

.button.danger {
  background: #3a2525;
  border-color: #6e3737;
  color: #ffd9d9;
}

.button:disabled,
.icon-button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

.shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 18px;
}

.panel {
  border: 1px solid rgba(244, 240, 232, 0.12);
  border-radius: 8px;
  background: rgba(26, 25, 22, 0.94);
}

.chat-panel {
  min-height: 690px;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
}

.status-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  border-bottom: 1px solid rgba(244, 240, 232, 0.1);
  background: rgba(244, 240, 232, 0.08);
}

.metric {
  min-width: 0;
  padding: 12px 14px;
  background: #1a1916;
}

.metric span {
  display: block;
  color: #a7a093;
  font-size: 11px;
  text-transform: uppercase;
}

.metric strong {
  display: block;
  overflow: hidden;
  margin-top: 2px;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 14px;
  font-weight: 680;
}

.messages {
  overflow: auto;
  padding: 18px;
}

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

.message {
  max-width: 86%;
  padding: 13px 14px;
  border: 1px solid rgba(244, 240, 232, 0.1);
  border-radius: 8px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.message.user {
  align-self: flex-end;
  background: #243124;
}

.message.assistant {
  align-self: flex-start;
  background: #22211d;
}

.message.thinking-message {
  padding: 8px;
}

.answer-text {
  white-space: pre-wrap;
}

.thinking-block {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  gap: 6px;
  margin: 0 0 8px;
}

.thinking-message .thinking-block {
  margin-bottom: 0;
}

.thinking-toggle {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  gap: 7px;
  border-radius: 6px;
  padding: 0 7px;
  background: #171714;
  color: #c9c1b2;
  cursor: pointer;
  font-size: 12px;
}

.thinking-arrow {
  display: inline-flex;
  width: 14px;
  height: 14px;
  align-items: center;
  justify-content: center;
  color: #d7ff7a;
}

.thinking-arrow svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2.2;
}

.thinking-content {
  max-height: 240px;
  overflow: auto;
  border-radius: 6px;
  padding: 8px;
  background: #141411;
  color: #a7a093;
  font-size: 12px;
  white-space: pre-wrap;
}

.empty {
  display: grid;
  min-height: 340px;
  place-items: center;
  color: #a7a093;
  text-align: center;
}

.composer {
  display: grid;
  gap: 10px;
  padding: 14px;
  border-top: 1px solid rgba(244, 240, 232, 0.1);
}

textarea,
input,
select {
  width: 100%;
  border: 1px solid rgba(244, 240, 232, 0.12);
  border-radius: 8px;
  background: #121210;
  color: #f4f0e8;
  outline: none;
}

textarea:focus,
input:focus,
select:focus {
  border-color: rgba(215, 255, 122, 0.8);
  box-shadow: 0 0 0 3px rgba(215, 255, 122, 0.12);
}

textarea {
  min-height: 96px;
  resize: vertical;
  padding: 12px;
}

input,
select {
  min-height: 38px;
  padding: 0 10px;
}

.composer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.file-chip {
  display: flex;
  min-width: 0;
  flex: 1;
  align-items: center;
  gap: 8px;
  color: #a7a093;
  font-size: 13px;
}

.file-chip input {
  display: none;
}

.chip-button {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  gap: 7px;
  border-radius: 8px;
  padding: 0 10px;
  background: #24231f;
  color: #f4f0e8;
  cursor: pointer;
}

.file-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

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

.card {
  padding: 16px;
}

.card h2 {
  margin-bottom: 10px;
  font-size: 15px;
  font-weight: 720;
}

.field {
  display: grid;
  gap: 6px;
  margin-top: 12px;
}

.field label {
  color: #c9c1b2;
  font-size: 12px;
  font-weight: 650;
}

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

.progress {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: #11110f;
}

.bar {
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: #d7ff7a;
  transition: width 180ms ease;
}

.indeterminate .bar {
  background: linear-gradient(90deg, rgba(215, 255, 122, 0.35), #d7ff7a, rgba(215, 255, 122, 0.35));
  background-size: 200% 100%;
  animation: load-sweep 1.1s linear infinite;
}

@keyframes load-sweep {
  from {
    background-position: 200% 0;
  }
  to {
    background-position: 0 0;
  }
}

.log {
  min-height: 106px;
  max-height: 190px;
  overflow: auto;
  padding: 10px;
  border-radius: 8px;
  background: #11110f;
  color: #c9c1b2;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  white-space: pre-wrap;
}

.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.pill {
  border: 1px solid rgba(244, 240, 232, 0.12);
  border-radius: 999px;
  padding: 5px 9px;
  color: #c9c1b2;
  font-size: 12px;
}

.source {
  overflow-wrap: anywhere;
}

@media (max-width: 900px) {
  .app {
    width: min(100vw - 20px, 720px);
    padding-top: 14px;
  }

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

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

  .message {
    max-width: 94%;
  }

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

  .actions {
    align-self: stretch;
    justify-content: flex-end;
  }
}