:root {
  color-scheme: light;
  --bg: #050911;
  --panel: #101b2d;
  --panel-2: #0b1423;
  --panel-3: #17243a;
  --line: #26344b;
  --line-soft: #1b293f;
  --text: #d7e0ef;
  --muted: #aab8cd;
  --soft: #8495ad;
  --purple: #00aeff;
  --purple-strong: #49c2ff;
  --green: #61d6a3;
  --amber: #e4b666;
  --red: #f37b88;
  --shadow: rgba(0, 0, 0, 0.35);
  --font: "Inter", sans-serif;
  --mono: "DM Mono", sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
}
body { overflow: hidden; }
button, input, textarea {
  font: inherit;
  color: inherit;
}
button { cursor: pointer; }
input, textarea {
  font-family: var(--mono);
}
textarea { resize: none; }
.app-shell {
  display: grid;
  grid-template-columns: 56px 220px minmax(360px, 1fr) 300px;
  height: 100vh;
  min-height: 620px;
  background: var(--bg);
}
.activity-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: #0e0f12;
  border-right: 1px solid var(--line);
  padding: 15px 0 12px;
  gap: 12px;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: linear-gradient(135deg, #c7b7ff, #9d7dfa);
  color: #191720;
  font-weight: 800;
  box-shadow: 0 10px 28px rgba(161, 139, 249, 0.32);
}
.activity-button, .mini-btn, .top-button, .mini-action {
  border: 0;
  background: transparent;
  color: #8d8e96;
  transition: background .15s ease, color .15s ease;
}
.activity-button {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  font-size: 18px;
}
.activity-button.active,
.activity-button:hover,
.top-button:hover,
.mini-btn:hover,
.mini-action:hover {
  background: #1d1e25;
  color: var(--purple-strong);
}
.activity-button.active {
  position: relative;
}
.activity-button.active::before {
  content: "";
  position: absolute;
  left: -8px;
  top: 8px;
  width: 2px;
  height: 22px;
  background: var(--purple);
  border-radius: 999px;
}
.spacer { flex: 1; }
.avatar {
  display: grid;
  place-items: center;
  width: 29px;
  height: 29px;
  border-radius: 9px;
  background: linear-gradient(135deg, #2d2d36, #17181d);
  border: 1px solid #4a4560;
  color: #e0d8ff;
  font-size: 12px;
  font-weight: 700;
}
.sidebar {
  display: flex;
  flex-direction: column;
  background: #141518;
  border-right: 1px solid var(--line);
  padding: 0 11px;
}
.workspace-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 58px;
  padding: 0 4px 0 8px;
}
.workspace-name {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 10px;
  letter-spacing: 0.14em;
  color: #d1d3d8;
  font-weight: 700;
}
.brand-mini { color: var(--purple); }
.mini-btn {
  width: 29px;
  height: 29px;
  border-radius: 6px;
  font-size: 18px;
}
.sidebar-label, .section-title {
  padding: 12px 8px 8px;
  font-size: 9px;
  letter-spacing: .12em;
  color: #71747d;
  font-family: var(--mono);
}
.side-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 9px;
  border: 0;
  background: transparent;
  padding: 8px 8px;
  border-radius: 6px;
  color: #b5b7bd;
  text-align: left;
  font-size: 12px;
}
.side-item span:first-child { color: var(--purple); }
.side-item.selected,
.side-item:hover {
  background: rgba(255,255,255,.04);
  color: #f0ebff;
}
.pill {
  margin-left: auto;
  background: rgba(255,255,255,.06);
  color: #a5a3ad;
  border-radius: 999px;
  padding: 2px 6px;
  font-family: var(--mono);
  font-size: 9px;
}
.history-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow: auto;
  margin-bottom: 8px;
}
.history-item {
  width: 100%;
  display: block;
  border: 0;
  background: transparent;
  color: #777d88;
  text-align: left;
  padding: 7px 8px;
  border-radius: 5px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.history-item:hover {
  background: rgba(255,255,255,.04);
  color: #dfe2f0;
}
.sidebar-bottom {
  margin-top: auto;
  padding-bottom: 10px;
}
.status-card {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 10px 8px;
  margin-bottom: 10px;
  border-radius: 8px;
  border: 1px solid rgba(122, 103, 181, .35);
  background: linear-gradient(135deg, rgba(40, 32, 52, 0.8), rgba(18,18,20,0.7));
}
.status-card strong,
.status-card small {
  display: block;
}
.status-card strong {
  font-size: 9px;
  letter-spacing: .08em;
  color: #d2c8ff;
  font-family: var(--mono);
}
.status-card small {
  margin-top: 3px;
  color: #8b8995;
  font-size: 9px;
}
.arrow { margin-left: auto; color: #b0a0e2; }
.user-row {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 0;
  background: transparent;
  padding: 5px 6px;
  border-radius: 6px;
  text-align: left;
}
.user-row:hover { background: rgba(255,255,255,.04); }
.avatar.small {
  width: 24px;
  height: 24px;
  font-size: 10px;
}
.user-row strong,
.user-row small {
  display: block;
}
.user-row strong { font-size: 10px; color: #dfe1e8; }
.user-row small { color: #7d7d85; font-size: 8px; margin-top: 3px; }
.more { margin-left: auto; color: #7f8190; }

.main-pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--bg);
}
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  padding: 0 22px;
  border-bottom: 1px solid var(--line-soft);
}
.crumbs {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #7d7f86;
  font-size: 10px;
  font-family: var(--mono);
  letter-spacing: .03em;
}
.crumbs strong { color: #dfe1eb; }
.slash { color: #4d4f58; }
.top-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.connection-status {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  white-space: nowrap;
  color: #7e8086;
  font-size: 10px;
}
.connection-status.connected { color: #d7f6e3; }
.dot {
  width: 6px;
  height: 6px;
  display: inline-block;
  border-radius: 50%;
}
.dot.green { background: var(--green); box-shadow: 0 0 10px rgba(121,215,167,.7); }
.dot.amber { background: var(--amber); }
.top-button {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  font-size: 15px;
}

.conversation {
  flex: 1;
  min-height: 0;
  overflow: auto;
  padding: 24px 30px 8px;
}
.welcome-panel {
  max-width: 710px;
  margin: 10px auto 18px;
}
.welcome-tag {
  color: #9186b9;
  font-size: 10px;
  letter-spacing: .09em;
  font-family: var(--mono);
}
.welcome-tag span { color: var(--purple); }
h1 {
  margin: 20px 0 12px;
  font-size: clamp(38px, 5vw, 60px);
  line-height: 1.05;
  letter-spacing: -0.06em;
  font-weight: 800;
}
h1 span { color: #b9a7ff; }
.welcome-panel p {
  margin: 0;
  max-width: 540px;
  color: #9fa2ab;
  font-size: 13px;
  line-height: 1.7;
}
.spark-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 28px;
}
.spark-card {
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 10px;
  background: rgba(255,255,255,.015);
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 12px 11px;
  text-align: left;
  transition: transform .1s ease, border-color .1s ease;
}
.spark-card:hover {
  transform: translateY(-1px);
  border-color: rgba(176,156,255,.45);
}
.icon {
  width: 30px;
  height: 30px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-size: 12px;
  font-family: var(--mono);
}
.icon.violet { background: rgba(161,139,249,.13); color: #cabdff; }
.icon.green { background: rgba(121,215,167,.12); color: #9be1bd; }
.icon.amber { background: rgba(211,170,104,.12); color: #e1c27a; }
.icon.blue { background: rgba(149,190,255,.12); color: #c1d9ff; }
.spark-card strong,
.spark-card small { display: block; }
.spark-card strong {
  color: #e7e5ec;
  font-size: 11px;
  font-weight: 600;
}
.spark-card small {
  margin-top: 3px;
  color: #7a7c84;
  font-size: 9px;
}
.welcome-note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  color: #7a7d84;
  font-size: 10px;
  font-family: var(--mono);
}

.messages {
  max-width: 720px;
  margin: 0 auto;
  padding-bottom: 10px;
}
.message {
  display: grid;
  grid-template-columns: 28px minmax(0,1fr);
  gap: 12px;
  margin: 18px 0;
}
.message-avatar {
  width: 27px;
  height: 27px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  font-size: 11px;
  font-weight: 700;
}
.message.user .message-avatar {
  background: rgba(165,139,249,.18);
  color: #d7c9ff;
  border: 1px solid rgba(165,139,249,.32);
}
.message.assistant .message-avatar {
  background: linear-gradient(135deg, #bfaeff, #8a7ee2);
  color: #1c1b22;
}
.message-content {
  min-width: 0;
  color: #e4e4eb;
  line-height: 1.7;
  font-size: 12px;
}
.message-meta {
  color: #7d7f88;
  margin-bottom: 6px;
  font-size: 9px;
  font-family: var(--mono);
}
.message-body {
  overflow-wrap: anywhere;
}
.message-body p { margin: 0 0 10px; }
.message-body p:last-child { margin-bottom: 0; }
.message-body strong { color: #f3efff; }
.message-body a { color: #b8aaff; }
.message-body ul,
.message-body ol { margin: 8px 0; padding-left: 18px; }
.message-body li { margin: 4px 0; }
.message-body blockquote {
  margin: 9px 0;
  padding-left: 12px;
  border-left: 2px solid rgba(165,139,249,.7);
  color: #b5bac5;
}
.message-body code:not(pre code) {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  padding: 2px 5px;
  border-radius: 5px;
  font-family: var(--mono);
  font-size: 10.5px;
}
.code-block {
  margin: 10px 0;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 8px;
  background: #121317;
}
.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 10px;
  background: rgba(255,255,255,.02);
  border-bottom: 1px solid rgba(255,255,255,.06);
  color: #888d97;
  font-size: 9px;
  font-family: var(--mono);
}
.code-actions { display: flex; gap: 10px; }
.code-action {
  border: 0;
  background: transparent;
  color: #b5a5f5;
  font-size: 9px;
  font-family: var(--mono);
}
.code-action:hover { color: #d9d1ff; }
.code-block pre {
  margin: 0;
  padding: 11px 12px;
  overflow: auto;
  color: #dfe6f5;
  font-size: 10px;
  line-height: 1.65;
  font-family: var(--mono);
}
.thinking {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #a0a4ad;
  font-family: var(--mono);
  font-size: 11px;
}
.thinking::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--purple);
  animation: pulse 1s ease-in-out infinite alternate;
}
@keyframes pulse {
  from { opacity: .2; transform: scale(.9); }
  to { opacity: 1; transform: scale(1.2); }
}

.composer-wrap {
  max-width: 800px;
  margin: 0 auto 10px;
  width: calc(100% - 70px);
}
.composer {
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 12px;
  background: rgba(35,37,42,.92);
  box-shadow: 0 18px 35px rgba(0,0,0,.18);
}
.composer:focus-within { border-color: rgba(165,139,249,.7); }
#message-input {
  width: 100%;
  min-height: 58px;
  max-height: 180px;
  background: transparent;
  border: 0;
  outline: none;
  display: block;
  padding: 16px 16px 8px;
  color: #e9e9ee;
  font-size: 12px;
  line-height: 1.55;
}
#message-input::placeholder { color: #757a86; }
.composer-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 40px;
  padding: 0 10px 9px;
  gap: 10px;
}
.bar-left, .bar-right { display: flex; align-items: center; gap: 10px; }
.select-wrap { position: relative; }
.model-select {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 7px;
  background: rgba(255,255,255,.02);
  padding: 7px 8px;
  max-width: 260px;
  text-align: left;
  font-size: 10px;
}
.model-icon { color: var(--purple); }
.chev { color: #8c8f99; }
.model-menu {
  position: absolute;
  left: 0;
  bottom: calc(100% + 8px);
  width: 310px;
  max-height: 390px;
  display: flex;
  flex-direction: column;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 10px;
  background: rgba(18,19,22,.98);
  box-shadow: 0 20px 60px rgba(0,0,0,.45);
  overflow: hidden;
}
.model-menu[hidden] { display: none; }
.menu-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 11px 7px;
  color: #9497a0;
  font-size: 8px;
  letter-spacing: .1em;
  font-family: var(--mono);
}
.live-tag { color: #90e0b0; }
.live-tag i {
  display: inline-block;
  width: 5px;
  height: 5px;
  margin-right: 4px;
  border-radius: 50%;
  background: var(--green);
  vertical-align: middle;
}
.search-box {
  display: flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 6px;
  background: rgba(255,255,255,.02);
  margin: 0 10px 7px;
  padding: 0 8px;
}
.search-box span { color: #8d8f98; }
.search-box input {
  width: 100%;
  background: transparent;
  border: 0;
  outline: 0;
  padding: 8px 0;
  color: #eceaf2;
  font-size: 10px;
}
.menu-options {
  overflow: auto;
  padding: 2px 6px 8px;
}
.model-option {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  padding: 8px;
  text-align: left;
}
.model-option:hover,
.model-option.selected {
  background: rgba(255,255,255,.04);
}
.model-option-mark { color: #b59cff; }
.model-option-copy { min-width: 0; flex: 1; }
.model-option-copy strong,
.model-option-copy small { display: block; }
.model-option-copy strong {
  color: #edf0f5;
  font-size: 10px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.model-option-copy small {
  margin-top: 4px;
  color: #7f838d;
  font-size: 8px;
  font-family: var(--mono);
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.zero-badge {
  color: #7fe1b5;
  font-family: var(--mono);
  font-size: 8px;
}
.menu-foot {
  padding: 8px 11px;
  border-top: 1px solid rgba(255,255,255,.06);
  color: #70757f;
  font-size: 8px;
  font-family: var(--mono);
}
.tool-chip {
  border: 0;
  border-radius: 7px;
  background: transparent;
  color: #a1a5af;
  padding: 6px 8px;
  font-size: 10px;
}
.tool-chip:hover { background: rgba(255,255,255,.04); }
.tool-chip span { color: var(--purple); }
.key-tip { color: #757b84; font-size: 9px; font-family: var(--mono); }
.send-button {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 0;
  border-radius: 8px;
  background: linear-gradient(135deg, #b9a4ff, #8a7ae6);
  color: #1a1822;
  font-size: 17px;
  font-weight: 700;
}
.send-button:disabled { opacity: .52; cursor: wait; }
.composer-caption {
  padding-top: 8px;
  text-align: center;
  color: #6f7480;
  font-size: 9px;
  font-family: var(--mono);
}
.statusbar {
  display: flex;
  align-items: center;
  gap: 15px;
  min-height: 23px;
  background: #b4a1ff;
  color: #1a1820;
  padding: 0 12px;
  font-size: 9px;
  font-family: var(--mono);
}
.statusbar span { white-space: nowrap; }
.bar-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(0,0,0,.55);
  margin-right: 6px;
}
.grow { flex: 1; }

.preview-pane {
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--line);
  background: #141518;
}
.preview-pane.is-hidden { display: none; }
.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 52px;
  padding: 0 12px;
  border-bottom: 1px solid var(--line-soft);
}
.preview-label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #a6a6ad;
  font-size: 9px;
  letter-spacing: .08em;
  font-family: var(--mono);
}
.preview-actions { display: flex; gap: 4px; }
.mini-action {
  width: 24px;
  height: 24px;
  border-radius: 5px;
  font-size: 14px;
}
.preview-tabs {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 36px;
  padding: 0 12px;
  border-bottom: 1px solid var(--line-soft);
}
.tab {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  color: #c4c8d2;
  font-size: 10px;
}
.tab::before {
  content: "";
  width: 6px;
  height: 6px;
  background: #f1ae83;
  border-radius: 50%;
}
.preview-body {
  flex: 1;
  min-height: 0;
  background: #101114;
  overflow: hidden;
}
.preview-empty {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  text-align: center;
  padding: 22px;
}
.empty-window {
  position: relative;
  width: min(210px, 70%);
  height: 145px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 8px;
  background: rgba(255,255,255,.02);
  margin-bottom: 18px;
}
.empty-window > span {
  display: inline-block;
  width: 5px;
  height: 5px;
  margin: 10px 2px 0 0;
  border-radius: 50%;
  background: #4d4d55;
}
.empty-window > span:first-child { margin-left: 11px; background: #d67e7e; }
.empty-window > span:nth-child(2) { background: #d2a25d; }
.empty-art {
  position: absolute;
  inset: 26px 12px 12px;
  display: grid;
  place-items: center;
  background: radial-gradient(circle at center, rgba(161,139,249,.25), rgba(18,19,22,1) 58%);
  border-radius: 6px;
  font-size: 34px;
  color: #a699e5;
}
.preview-empty strong {
  font-size: 12px;
  color: #edf0f5;
}
.preview-empty p {
  margin: 10px 0 14px;
  color: #7d818b;
  font-size: 10px;
  line-height: 1.6;
}
.preview-example {
  border: 1px solid rgba(255,255,255,.07);
  border-radius: 6px;
  background: rgba(255,255,255,.03);
  color: #b7aef1;
  padding: 7px 9px;
  font-size: 9px;
  font-family: var(--mono);
}
#preview-frame {
  width: 100%;
  height: 100%;
  border: 0;
  background: #fff;
}
.preview-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 24px;
  border-top: 1px solid var(--line-soft);
  padding: 0 10px;
  color: #7d7f89;
  font-size: 8px;
  font-family: var(--mono);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(0,0,0,.6);
  backdrop-filter: blur(4px);
  z-index: 30;
}
.modal-backdrop[hidden] { display: none; }
.settings-modal {
  width: min(430px, calc(100vw - 30px));
  background: #1a1b20;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 28px 80px rgba(0,0,0,.45);
}
.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}
.modal-tag {
  color: #a295d1;
  font-size: 9px;
  letter-spacing: .1em;
  font-family: var(--mono);
}
.settings-modal h2 {
  margin: 10px 0 0;
  font-size: 26px;
  letter-spacing: -0.05em;
}
.close-btn {
  border: 0;
  background: transparent;
  color: #8a8d99;
  font-size: 26px;
}
.modal-copy {
  margin: 14px 0 20px;
  color: #9ea2ad;
  font-size: 11px;
  line-height: 1.75;
}
.input-label {
  display: block;
  margin-bottom: 8px;
  color: #8b8f9a;
  font-size: 9px;
  letter-spacing: .08em;
  font-family: var(--mono);
}
.key-row {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 7px;
  background: rgba(0,0,0,.13);
}
.key-row input {
  width: 100%;
  background: transparent;
  border: 0;
  outline: none;
  height: 40px;
  color: #eff2f9;
  padding: 0 10px;
  font-size: 10px;
}
.toggle-key {
  background: transparent;
  border: 0;
  color: #b9a7ff;
  padding: 0 10px;
  font-size: 10px;
}
.key-note {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  color: #c7a772;
  font-size: 9px;
  line-height: 1.6;
}
.key-note span { color: #e0c37d; }
.modal-actions {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-top: 22px;
}
.button {
  min-height: 34px;
  border-radius: 7px;
  padding: 0 12px;
  border: 1px solid rgba(255,255,255,.08);
  font-size: 10px;
}
.button.secondary { background: transparent; color: #aeafbc; }
.button.primary {
  background: linear-gradient(135deg, #bdaaff, #8a79de);
  color: #1e1b2a;
  border-color: rgba(176,156,255,.7);
  font-weight: 700;
}
.settings-foot {
  margin-top: 18px;
  border-top: 1px solid rgba(255,255,255,.06);
  padding-top: 12px;
  color: #717581;
  font-size: 9px;
}
.toast {
  position: fixed;
  right: 18px;
  bottom: 22px;
  min-width: 180px;
  max-width: min(360px, calc(100vw - 30px));
  border-radius: 8px;
  background: rgba(25,27,32,.96);
  border: 1px solid rgba(255,255,255,.08);
  color: #eff1f7;
  padding: 10px 12px;
  font-size: 11px;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity .18s ease, transform .18s ease;
  pointer-events: none;
  z-index: 50;
}
.toast.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1050px) {
  .app-shell { grid-template-columns: 56px 210px minmax(300px,1fr); }
  .preview-pane { display: none; }
  .preview-pane.open {
    display: flex;
    position: fixed;
    z-index: 10;
    top: 0;
    right: 0;
    bottom: 0;
    width: min(360px, 82vw);
    box-shadow: -16px 0 42px rgba(0,0,0,.5);
  }
}
@media (max-width: 760px) {
  .app-shell { grid-template-columns: 52px 1fr; }
  .sidebar { display: none; }
  .composer-wrap { width: calc(100% - 18px); }
  .spark-grid { grid-template-columns: 1fr; }
  .topbar { padding: 0 12px; }
  .connection-status { max-width: 120px; overflow: hidden; }
  .conversation { padding: 20px 14px 8px; }
  .statusbar { gap: 8px; padding: 0 8px; font-size: 8px; }
}

/* Light workspace palette */
html, body, .app-shell, .main-pane { background: var(--bg); color: var(--text); }
.activity-bar { background: #eeecf4; border-color: var(--line); }
.sidebar, .preview-pane { background: #fbfaff; border-color: var(--line); }
.activity-button, .mini-btn, .top-button, .mini-action { color: #777383; }
.activity-button.active, .activity-button:hover, .top-button:hover, .mini-btn:hover, .mini-action:hover {
  background: #e6e1f2;
  color: #6148b0;
}
.avatar { background: linear-gradient(135deg, #eee9ff, #dcd3f6); border-color: #c6b9e9; color: #564392; }
.workspace-name, .side-item, .side-item.selected, .side-item:hover,
.user-row strong { color: #34313d; }
.sidebar-label, .section-title { color: #817d8b; }
.side-item.selected, .side-item:hover, .history-item:hover, .user-row:hover { background: #eeebf4; }
.history-item, .user-row small, .more { color: #777582; }
.pill { background: #edeaf3; color: #625d70; }
.status-card { border-color: #ded6f0; background: linear-gradient(135deg, #f1edfb, #faf9fc); }
.status-card strong { color: #59458f; }
.status-card small { color: #777283; }
.arrow { color: #7461ad; }
.crumbs { color: #777582; }
.crumbs strong { color: #393542; }
.slash { color: #aaa6b2; }
.connection-status { color: #76727e; }
.connection-status.connected { color: #216b4a; }
.welcome-tag { color: #746893; }
h1 { color: #26222e; }
h1 span { color: #795fc9; }
.welcome-panel p { color: #666371; }
.spark-card { background: #fff; border-color: #e8e5ed; box-shadow: 0 4px 12px rgba(40,31,65,.035); }
.spark-card:hover { background: #fbfaff; border-color: #c8bce8; }
.spark-card strong { color: #393542; }
.spark-card small, .welcome-note { color: #777482; }
.icon.violet { background: #eee9fb; color: #6d56b1; }
.icon.green { background: #e7f5ed; color: #28784e; }
.icon.amber { background: #fbf1e1; color: #966114; }
.icon.blue { background: #e8f2fa; color: #366f97; }
.message-content { color: #36333e; }
.message.user .message-content { color: #302b3d; }
.message-meta { color: #777482; }
.message-body strong { color: #282431; }
.message-body a { color: #684db2; }
.message-body blockquote { color: #60586d; }
.message-body code:not(pre code) { background: #f2eff8; border-color: #e3deed; color: #55438e; }
.code-block { background: #f6f5f8; border-color: #e3e0e9; }
.code-header { background: #eeecf3; border-color: #e3e0e9; color: #686473; }
.code-block pre { color: #35313e; }
.code-action { color: #654eb0; }
.code-action:hover { color: #49328e; }
.thinking { color: #676270; }
.composer { background: #fff; border-color: #dedbe6; box-shadow: 0 12px 28px rgba(40,31,65,.09); }
.composer:focus-within { border-color: #9c88d7; }
#message-input { color: #292632; }
#message-input::placeholder { color: #898592; }
.model-select { background: #f8f6fb; border-color: #e3dfeb; color: #3c3747; }
.model-select:hover { background: #f0ecf8; border-color: #c9bde6; }
.model-menu { background: #fff; border-color: #e2dee9; box-shadow: 0 18px 45px rgba(35,27,53,.18); }
.menu-head { color: #686473; }
.search-box { background: #faf9fc; border-color: #e4e1e9; }
.search-box input { color: #302d37; }
.search-box input::placeholder { color: #8a8692; }
.model-option:hover, .model-option.selected { background: #f0edf7; }
.model-option-copy strong { color: #383441; }
.model-option-copy small { color: #787481; }
.model-option-mark { color: #765dc2; }
.menu-foot { color: #76727f; border-color: #ece9f0; }
.tool-chip { color: #706d7a; }
.tool-chip:hover { background: #f0edf6; color: #393542; }
.key-tip, .composer-caption { color: #777482; }
.send-button { background: linear-gradient(135deg, #846bd2, #7057bd); color: #fff; }
.statusbar { background: #7761bf; color: #fff; }
.bar-dot { background: #fff; }
.preview-header, .preview-tabs, .preview-footer { border-color: #e9e6ee; }
.preview-label, .tab { color: #55515e; }
.preview-body { background: #f3f2f6; }
.empty-window { background: #fff; border-color: #e4e0eb; box-shadow: 0 9px 24px rgba(45,35,70,.07); }
.empty-art { background: radial-gradient(circle at center, #e8e1f7, #faf9fc 70%); color: #7762bd; }
.preview-empty strong { color: #383441; }
.preview-empty p, .preview-footer { color: #777482; }
.preview-example { background: #f5f2fb; border-color: #e4def1; color: #624da0; }
.modal-backdrop { background: rgba(44,38,59,.3); }
.settings-modal { background: #fff; border-color: #e3dfea; box-shadow: 0 24px 70px rgba(35,27,53,.22); }
.settings-modal h2 { color: #292632; }
.modal-copy { color: #666371; }
.input-label { color: #6e6a78; }
.key-row { background: #faf9fc; border-color: #e3dfea; }
.key-row input { color: #302d37; }
.toggle-key { color: #684fb0; }
.key-note { color: #805d23; }
.modal-actions .button.secondary { border-color: #e3dfea; color: #666371; }
.settings-foot { color: #777482; border-color: #ebe8f0; }
.toast { background: #fff; border-color: #ded9e8; color: #302d37; box-shadow: 0 8px 28px rgba(35,27,53,.16); }

/* Compact, luminous holographic workspace */
.app-shell { grid-template-columns: 54px 205px minmax(360px, 1fr) 285px; }
.activity-bar { padding-top: 11px; gap: 8px; }
.workspace-header, .topbar, .preview-header { min-height: 46px; height: 46px; }
.sidebar { padding-left: 9px; padding-right: 9px; }
.sidebar-label, .section-title { padding-top: 9px; padding-bottom: 6px; }
.side-item { padding-top: 6px; padding-bottom: 6px; }
.section-title.recent-heading { display: flex; align-items: center; justify-content: space-between; }
.history-search-toggle { border: 0; background: transparent; color: #60718a; border-radius: 5px; }
.history-search-toggle:hover { background: #e5edf5; color: #087eb9; }
.history-search { width: 100%; padding: 6px 8px; margin: 0 0 6px; border: 1px solid #d4dce6; border-radius: 6px; background: #fff; color: #283447; font-size: 10px; }
.history-search[hidden] { display: none; }
.history-item { padding: 6px 8px; font-size: 10px; }
.history-item.active { background: #e5eff6; color: #1f5576; }
.history-empty { padding: 8px; color: #657187; font-size: 10px; }
.model-cards-title { display: flex; justify-content: space-between; align-items: center; }
.live-dot { width: 6px; height: 6px; border-radius: 50%; background: #169acb; box-shadow: 0 0 8px #55cfff; }
.sidebar-model-cards { display: grid; gap: 4px; max-height: 180px; overflow: auto; padding: 0 1px 5px; }
.sidebar-model-card { min-width: 0; width: 100%; display: flex; align-items: center; gap: 7px; padding: 6px; border: 1px solid transparent; border-radius: 7px; background: transparent; text-align: left; }
.sidebar-model-card:hover { background: #edf3f7; }
.sidebar-model-card.selected { border-color: #c7deea; background: linear-gradient(110deg,#e8f3f8,#f4f6fa); box-shadow: inset 2px 0 #168fbe; }
.sidebar-model-icon { width: 23px; height: 23px; flex: 0 0 23px; display: grid; place-items: center; border: 1px solid #d5e0e9; border-radius: 7px; background: linear-gradient(145deg,#fff,#e6edf3); color: #285078; font: 600 10px var(--mono); }
.sidebar-model-copy { min-width: 0; flex: 1; }
.sidebar-model-copy strong, .sidebar-model-copy small { display: block; overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.sidebar-model-copy strong { color: #293649; font-size: 9px; font-weight: 600; }
.sidebar-model-copy small { margin-top: 2px; color: #718096; font: 8px var(--mono); }
.sidebar-model-free { color: #28784e; font: 7px var(--mono); }
.sidebar-model-cards:empty::after { content: "Loading free picks…"; padding: 6px; color: #657187; font-size: 9px; }
.conversation { padding-top: 18px; }
.welcome-panel { margin-top: 3vh; }
h1 { margin-top: 14px; font-size: clamp(34px, 4vw, 50px); }
.spark-grid { gap: 8px; margin-top: 20px; }
.spark-card { padding: 9px; border-radius: 8px; }
.composer-wrap { margin-bottom: 7px; }
.composer { border-radius: 10px; }
#message-input { min-height: 50px; padding-top: 12px; }
.statusbar { min-height: 21px; }
.preview-empty p { margin: 7px 0 10px; }
.brand-mark { filter: drop-shadow(0 0 7px rgba(0,174,255,.14)); }
.spark-card, .status-card, .composer, .model-menu, .settings-modal {
  backdrop-filter: blur(12px);
}
.spark-card:hover { box-shadow: 0 7px 18px rgba(0,125,187,.09), inset 0 0 0 1px rgba(0,174,255,.08); }
.send-button { box-shadow: 0 0 12px rgba(0,174,255,.25); }
@media (max-width: 1050px) {
  .app-shell { grid-template-columns: 52px 195px minmax(300px,1fr); }
}
@media (max-width: 760px) {
  .app-shell { grid-template-columns: 48px minmax(0,1fr); }
}

/* Premium silver, iron, and navy accents */
.brand-mark {
  background: linear-gradient(145deg, #ffffff 5%, #d7d9dd 48%, #aeb2b9 100%);
  border: 1px solid #c4c7cc;
  color: #203657;
  box-shadow: 0 7px 18px rgba(34, 54, 84, .14);
}
.activity-button.active::before { background: #263d64; }
.activity-button.active, .activity-button:hover, .top-button:hover,
.mini-btn:hover, .mini-action:hover { color: #263d64; }
.brand-mini, .side-item span:first-child, .model-icon,
.welcome-tag span, .preview-label > span { color: #263d64; }
.status-card { border-color: #c9d0dc; background: linear-gradient(135deg, #f5f6f8, #e8eaee); }
.status-card strong { color: #263d64; }
.status-card small { color: #686b72; }
.arrow { color: #304a75; }
.welcome-tag { color: #6d6467; }
h1 span { color: #304a75; }
.spark-card:hover { border-color: #bdc9d9; }
.icon.violet { background: #e8edf4; color: #304a75; }
.message.user .message-avatar { background: #e9edf4; border-color: #cad3e0; color: #263d64; }
.message.assistant .message-avatar { background: linear-gradient(145deg, #f3f3f4, #c9cbd0); color: #263d64; border: 1px solid #d1d3d7; }
.message-body a, .code-action, .toggle-key { color: #304a75; }
.model-select:hover { border-color: #bdc9d9; }
.composer:focus-within { border-color: #8799b5; }
.model-option:hover, .model-option.selected { background: #edf0f5; }
.model-option-mark { color: #304a75; }
.send-button { background: linear-gradient(145deg, #405b86, #263d64); color: #fff; }
.send-button:hover { background: linear-gradient(145deg, #4c6894, #304a75); }
.statusbar { background: linear-gradient(90deg, #23395f, #344d77 55%, #203557); }
.empty-art { background: radial-gradient(circle at center, #e6ebf3, #fafafa 70%); color: #304a75; }
.preview-example { background: #eef1f6; border-color: #d9e0ea; color: #304a75; }
.button.primary { background: linear-gradient(145deg, #405b86, #263d64); border-color: #304a75; color: #fff; }
.button.primary:hover { background: linear-gradient(145deg, #4c6894, #304a75); }
.modal-tag { color: #304a75; }
.toast { border-color: #d1d8e3; }
.activity-bar { background: linear-gradient(180deg, #f0f1f3, #e8e9ec); }
.sidebar, .preview-pane { background: #fbfbfc; }

/* Light silver workspace with logo-matched electric-blue accents */
html, body, .app-shell, .main-pane { background: #f1f3f6; color: #202a38; }
.activity-bar { background: #e5e9ef; border-color: #d3d9e2; }
.sidebar, .preview-pane { background: #f8f9fb; border-color: #d7dce4; }
.brand-mark {
  width: 38px;
  height: 38px;
  object-fit: cover;
  border-radius: 10px;
  border: 1px solid #c8d1dc;
  box-shadow: 0 4px 14px rgba(30,55,90,.14);
}
.workspace-name, .side-item, .side-item.selected, .side-item:hover,
.user-row strong { color: #283447; }
.sidebar-label, .section-title, .history-item, .user-row small { color: #657187; }
.side-item.selected, .side-item:hover, .history-item:hover, .user-row:hover { background: #e9edf3; }
.pill { background: #e7ebf1; color: #515e72; }
.status-card { border-color: #d5dce6; background: linear-gradient(135deg, #f5f7fa, #e9edf3); }
.status-card strong { color: #285078; }
.status-card small, .crumbs, .connection-status, .welcome-note, .spark-card small,
.message-meta, .composer-caption, .key-tip { color: #5d6878; }
.arrow, .brand-mini, .side-item span:first-child, .model-icon,
.welcome-tag span, .preview-label > span { color: #007dbb; }
.crumbs strong { color: #283447; }
.slash { color: #8e99a8; }
.welcome-tag { color: #4f6680; }
h1 { color: #202a38; }
h1 span { color: #007dbb; text-shadow: none; }
.welcome-panel p { color: #4c596b; }
.spark-card { background: #fff; border-color: #d9dee6; box-shadow: 0 4px 14px rgba(28,42,63,.06); }
.spark-card:hover { background: #fff; border-color: #82b9d4; }
.spark-card strong { color: #293649; }
.icon.violet { background: #e6f2f8; color: #17658f; }
.icon.green { background: #e6f4ec; color: #28784e; }
.icon.amber { background: #fbf1e1; color: #966114; }
.icon.blue { background: #e8f2fa; color: #366f97; }
.message-content { color: #273345; }
.message-body strong { color: #1e2938; }
.message-body a, .code-action, .toggle-key { color: #006ca6; }
.message-body blockquote { color: #4e5b6e; }
.message-body code:not(pre code) { background: #e8edf3; border-color: #d6dde6; color: #214d6c; }
.code-block { background: #f7f8fa; border-color: #d7dce4; }
.code-header { background: #eceff3; border-color: #d7dce4; color: #4f5d70; }
.code-block pre { color: #283447; }
.composer { background: #fff; border-color: #cfd6e0; box-shadow: 0 12px 28px rgba(28,42,63,.1); }
.composer:focus-within { border-color: #2999c9; box-shadow: 0 0 0 2px rgba(0,125,187,.12), 0 12px 28px rgba(28,42,63,.1); }
#message-input { color: #202a38; }
#message-input::placeholder { color: #69778a; }
.model-select { background: #f3f5f8; border-color: #d4dbe4; color: #293649; }
.model-select:hover { background: #eaf2f7; border-color: #a7c7d8; }
.model-menu { background: #fff; border-color: #d7dce4; box-shadow: 0 20px 50px rgba(22,35,54,.2); }
.menu-head { color: #4d5a6c; }
.search-box { background: #f7f8fa; border-color: #d7dce4; }
.search-box input { color: #202a38; }
.search-box input::placeholder { color: #738094; }
.model-option:hover, .model-option.selected { background: #edf3f7; }
.model-option-copy strong { color: #293649; }
.model-option-copy small { color: #5d6b7e; }
.model-option-mark { color: #007dbb; }
.menu-foot { color: #5f6d80; border-color: #e0e4ea; }
.tool-chip { color: #526074; }
.tool-chip:hover { background: #e9edf3; color: #283447; }
.send-button { background: linear-gradient(135deg, #0aaef0, #087eb9); color: #fff; box-shadow: 0 3px 10px rgba(0,125,187,.22); }
.send-button:hover { background: linear-gradient(135deg, #31bdf5, #0789c7); }
.statusbar { background: linear-gradient(90deg, #e3e8ee, #d8e0e9 55%, #e3e8ee); color: #33445b; border-top: 1px solid #cdd5df; }
.bar-dot { background: #007dbb; box-shadow: 0 0 6px rgba(0,125,187,.5); }
.preview-header, .preview-tabs, .preview-footer { border-color: #d7dce4; }
.preview-label, .tab { color: #3d4b5f; }
.preview-body { background: #f0f2f5; }
.empty-window { background: #fff; border-color: #d7dce4; box-shadow: 0 10px 25px rgba(28,42,63,.08); }
.empty-art { background: radial-gradient(circle at center, #e6f2f8, #fff 70%); color: #007dbb; }
.preview-empty strong { color: #293649; }
.preview-empty p, .preview-footer { color: #5d6b7e; }
.preview-example { background: #eaf2f7; border-color: #d0e0e9; color: #205878; }
.modal-backdrop { background: rgba(24,35,51,.35); }
.settings-modal { background: #fff; border-color: #d7dce4; box-shadow: 0 28px 70px rgba(22,35,54,.24); }
.settings-modal h2 { color: #202a38; }
.modal-copy { color: #4f5d70; }
.input-label { color: #526074; }
.key-row { background: #f7f8fa; border-color: #d7dce4; }
.key-row input { color: #283447; }
.key-note { color: #795823; }
.modal-actions .button.secondary { border-color: #d7dce4; color: #4f5d70; }
.settings-foot { color: #5d6b7e; border-color: #e0e4ea; }
.toast { background: #fff; border-color: #d7dce4; color: #283447; box-shadow: 0 8px 28px rgba(22,35,54,.18); }