:root {
  color-scheme: dark;
  --bg: #0d1418;
  --bg-2: #111c22;
  --panel: rgba(12, 18, 22, 0.82);
  --panel-strong: rgba(18, 26, 31, 0.96);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.18);
  --text: #f8f1e2;
  --muted: rgba(248, 241, 226, 0.68);
  --amber: #f3b464;
  --teal: #76d7c4;
  --rose: #ff8976;
  --blue: #96b5ff;
  --shadow: 0 32px 80px rgba(0, 0, 0, 0.42);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --scroll-track: rgba(255, 255, 255, 0.05);
  --scroll-thumb: rgba(243, 180, 100, 0.42);
  --scroll-thumb-strong: rgba(118, 215, 196, 0.48);
  --sidebar-width: 340px;
  --details-width: 320px;
  --terminal-height: 280px;
  --resizer-size: 12px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(243, 180, 100, 0.18), transparent 30%),
    radial-gradient(circle at right, rgba(118, 215, 196, 0.12), transparent 28%),
    linear-gradient(180deg, var(--bg) 0%, #090d11 100%);
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
}

body {
  min-height: 100vh;
  overflow: auto;
}

body.is-resizing {
  user-select: none;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

a {
  color: var(--amber);
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--scroll-thumb) var(--scroll-track);
}

*::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

*::-webkit-scrollbar-track {
  background: var(--scroll-track);
  border-radius: 999px;
}

*::-webkit-scrollbar-thumb {
  border: 3px solid transparent;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--scroll-thumb), var(--scroll-thumb-strong));
  background-clip: padding-box;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.ambient {
  position: fixed;
  inset: auto;
  width: 34vw;
  height: 34vw;
  border-radius: 999px;
  filter: blur(70px);
  opacity: 0.45;
  pointer-events: none;
}

.ambient-one {
  top: -12vw;
  left: -10vw;
  background: rgba(243, 180, 100, 0.22);
}

.ambient-two {
  right: -12vw;
  bottom: -12vw;
  background: rgba(118, 215, 196, 0.16);
}

.shell {
  position: relative;
  display: grid;
  grid-template-columns: minmax(250px, var(--sidebar-width)) var(--resizer-size) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  min-height: 100vh;
  padding: 18px;
}

.shell.is-sidebar-collapsed {
  grid-template-columns: minmax(0, 1fr);
}

.card,
.workspace-main,
.activity-pane,
.terminal-pane {
  border: 1px solid var(--line);
  background: var(--panel);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.sidebar {
  display: grid;
  grid-template-rows: auto auto minmax(250px, 1fr) minmax(220px, 1fr);
  gap: 16px;
  min-height: 0;
  max-height: calc(100vh - 36px);
  padding-right: 6px;
  position: sticky;
  top: 18px;
  overflow: auto;
}

.sidebar.is-collapsed,
.activity-pane.is-collapsed,
.terminal-pane.is-collapsed {
  display: none;
}

.card,
.workspace-main,
.activity-pane,
.terminal-pane {
  border-radius: var(--radius-xl);
}

.brand-card,
.auth-card,
.sidebar-section,
.info-card,
.login-card-side,
.activity-card {
  padding: 18px;
}

.sidebar .card,
.activity-pane .card {
  box-shadow: none;
  background: rgba(255, 255, 255, 0.025);
}

.brand-card h2,
.panel-head h3,
.login-card h1 {
  margin: 0;
  font-size: clamp(1.7rem, 2.4vw, 2.6rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
}

.lede,
.muted-copy,
.empty-card,
.thread-card p,
.message-label,
.activity-item p,
.meta-grid dt {
  color: var(--muted);
}

.lede,
.muted-copy {
  line-height: 1.6;
}

.section-head,
.button-row,
.button-pair,
.thread-card-top,
.thread-card-meta,
.terminal-head,
.topbar,
.topbar-utility {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.button-row,
.button-pair {
  flex-wrap: wrap;
}

.primary-button,
.ghost-button,
.thread-card,
.prompt-chip,
.tab-button,
.tree-row,
.connection-pill,
.status-pill {
  border: 1px solid var(--line-strong);
  color: var(--text);
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease, opacity 160ms ease;
}

.primary-button:hover,
.ghost-button:hover,
.thread-card:hover,
.prompt-chip:hover,
.tab-button:hover,
.tree-row:hover {
  transform: translateY(-1px);
}

.primary-button,
.ghost-button,
.connection-pill,
.status-pill {
  border-radius: 999px;
  padding: 11px 16px;
}

.compact-button {
  padding: 9px 14px;
}

.primary-button {
  background: linear-gradient(135deg, rgba(243, 180, 100, 0.26), rgba(118, 215, 196, 0.2));
}

.ghost-button,
.tab-button,
.tree-row,
.thread-card,
.prompt-chip {
  background: rgba(255, 255, 255, 0.03);
}

.topbar {
  padding: 16px 18px;
}

.topbar-actions {
  display: grid;
  justify-items: end;
  gap: 10px;
}

.layout-controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.layout-button.is-active {
  border-color: rgba(118, 215, 196, 0.44);
  background: rgba(118, 215, 196, 0.12);
}

.topbar-copy strong {
  display: block;
  margin-bottom: 4px;
  font-size: 1.15rem;
}

.topbar-copy .muted-copy {
  margin: 0;
  max-width: 52ch;
}

.connection-pill,
.status-pill {
  font-size: 0.82rem;
}

.connection-pill.is-live {
  border-color: rgba(118, 215, 196, 0.5);
  background: rgba(118, 215, 196, 0.12);
}

.mainstage {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) var(--resizer-size) minmax(180px, var(--terminal-height));
  gap: 16px;
  min-height: calc(100vh - 36px);
}

.mainstage.is-terminal-collapsed {
  grid-template-rows: auto minmax(0, 1fr);
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) var(--resizer-size) minmax(260px, var(--details-width));
  gap: 16px;
  min-height: 0;
}

.workspace.is-details-collapsed {
  grid-template-columns: minmax(0, 1fr);
}

.workspace-main {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  overflow: hidden;
  min-width: 0;
}

.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.tabbar {
  display: flex;
  gap: 10px;
  padding: 16px 16px 0;
}

.tab-button {
  border-radius: 999px;
  padding: 10px 16px;
}

.tab-button.is-active {
  border-color: rgba(243, 180, 100, 0.45);
  background: rgba(243, 180, 100, 0.12);
}

.panel {
  display: none;
  gap: 14px;
  min-height: 0;
  padding: 18px;
  overflow: hidden;
}

.panel.is-active {
  display: grid;
}

#chatPanel {
  grid-template-rows: auto auto minmax(0, 1fr) auto;
}

#editorPanel {
  grid-template-rows: auto minmax(0, 1fr);
}

.editor-head {
  align-items: start;
}

.prompt-strip {
  display: grid;
  gap: 12px;
  min-height: 0;
}

.prompt-copy {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.prompt-copy .eyebrow,
.prompt-copy .muted-copy {
  margin: 0;
}

.prompt-copy .muted-copy {
  font-size: 0.92rem;
}

.prompt-row {
  display: flex;
  gap: 10px;
  overflow: auto;
  padding-bottom: 4px;
  scroll-snap-type: x proximity;
}

.prompt-chip {
  flex: 0 0 min(320px, 82%);
  border-radius: var(--radius-md);
  padding: 14px;
  text-align: left;
  line-height: 1.45;
  scroll-snap-align: start;
}

.chat-log,
.thread-list,
.activity-list,
.tree-root {
  display: grid;
  gap: 10px;
  min-height: 0;
  overflow: auto;
  padding-right: 6px;
  overscroll-behavior: contain;
}

.thread-card {
  border-radius: var(--radius-lg);
  padding: 14px;
  text-align: left;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: start;
}

.thread-card.is-active {
  border-color: rgba(243, 180, 100, 0.45);
  background: linear-gradient(135deg, rgba(243, 180, 100, 0.15), rgba(118, 215, 196, 0.1));
}

.thread-card-button {
  width: 100%;
  min-width: 0;
  padding: 0;
  border: 0;
  background: transparent;
  color: inherit;
  text-align: left;
}

.thread-card p {
  margin: 10px 0 0;
  line-height: 1.45;
  display: -webkit-box;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
}

.thread-card strong,
.activity-item strong {
  font-size: 0.95rem;
}

.thread-card-actions,
.panel-head-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.thread-card span,
.thread-card-meta,
.activity-meta {
  font-size: 0.8rem;
}

.thread-card-meta {
  margin-top: 10px;
  font-family: "IBM Plex Mono", monospace;
}

.message-bubble,
.empty-card {
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.03);
}

.message-bubble.user {
  background: rgba(150, 181, 255, 0.1);
}

.message-bubble.assistant {
  background: rgba(118, 215, 196, 0.08);
}

.message-bubble.system {
  background: rgba(243, 180, 100, 0.1);
}

.message-label,
.activity-meta,
.meta-grid dt {
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.message-label,
.activity-meta {
  font-size: 0.74rem;
}

.message-body,
.editor-surface,
.terminal-output,
.code-badge,
.meta-grid dd {
  margin: 0;
  font-family: "IBM Plex Mono", monospace;
  white-space: pre-wrap;
  word-break: break-word;
}

.message-body {
  line-height: 1.6;
}

.composer,
.terminal-form {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
}

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

.grow {
  min-width: 0;
}

.field input,
.field textarea,
.editor-surface,
.terminal-field {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  padding: 14px 16px;
  outline: 0;
}

.field textarea {
  min-height: 64px;
  max-height: 220px;
  resize: none;
}

.editor-surface {
  min-height: 0;
  resize: none;
  overflow: auto;
}

.activity-pane {
  display: grid;
  grid-template-rows: auto auto minmax(0, 1fr);
  gap: 16px;
  min-height: 0;
  padding: 14px;
  overflow: auto;
  align-content: start;
  min-width: 0;
}

.sidebar-section,
.activity-card {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  min-height: 0;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
}

.meta-grid .wide {
  grid-column: 1 / -1;
}

.meta-grid dt {
  margin-bottom: 6px;
  font-size: 0.72rem;
}

.meta-grid dd {
  font-size: 0.82rem;
  overflow-wrap: anywhere;
}

.activity-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.03);
}

.activity-item p {
  margin: 8px 0 0;
  line-height: 1.45;
}

.tree-root {
  align-content: start;
}

.tree-row {
  display: flex;
  align-items: center;
  gap: 10px;
  border-radius: 14px;
  padding: 10px 12px;
  padding-left: calc(12px + (var(--depth, 0) * 18px));
  text-align: left;
}

.tree-row.is-active {
  border-color: rgba(118, 215, 196, 0.45);
  background: rgba(118, 215, 196, 0.1);
}

.delete-button {
  border-color: rgba(255, 137, 118, 0.34);
  color: #ffd3cb;
}

.delete-button:hover {
  background: rgba(255, 137, 118, 0.12);
}

.tree-marker {
  display: inline-grid;
  width: 14px;
  place-items: center;
  color: var(--muted);
}

.resizer {
  position: relative;
  border: 0;
  background: transparent;
  border-radius: 999px;
  touch-action: none;
  align-self: stretch;
  justify-self: stretch;
}

.resizer::before {
  content: "";
  position: absolute;
  inset: 0;
  margin: auto;
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(243, 180, 100, 0.32), rgba(118, 215, 196, 0.36));
  opacity: 0.42;
  transition: opacity 160ms ease, transform 160ms ease, box-shadow 160ms ease;
}

.resizer:hover::before,
.resizer.is-active::before {
  opacity: 1;
  box-shadow: 0 0 0 1px rgba(243, 180, 100, 0.22), 0 0 24px rgba(118, 215, 196, 0.14);
}

.resizer-x {
  cursor: col-resize;
  min-height: 0;
}

.resizer-x::before {
  width: 4px;
  height: 100%;
}

.resizer-y {
  cursor: row-resize;
}

.resizer-y::before {
  width: 100%;
  height: 4px;
}

.shell.is-sidebar-collapsed .resizer[data-resizer="sidebar"],
.workspace.is-details-collapsed .resizer[data-resizer="activity"],
.mainstage.is-terminal-collapsed .resizer[data-resizer="terminal"] {
  display: none;
}

.terminal-pane {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 14px;
  padding: 16px 18px 18px;
  min-height: 0;
}

.terminal-output {
  min-height: 0;
  overflow: auto;
  border: 1px solid rgba(118, 215, 196, 0.16);
  border-radius: 18px;
  padding: 16px;
  background: linear-gradient(180deg, rgba(8, 12, 15, 0.92), rgba(9, 15, 19, 0.96));
  color: #bdf7e5;
  line-height: 1.55;
}

.terminal-field {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 12px;
}

.terminal-prompt {
  font-family: "IBM Plex Mono", monospace;
  color: var(--amber);
}

.terminal-field input {
  border: 0;
  background: transparent;
  padding: 0;
}

.terminal-field input:focus {
  outline: 0;
}

.code-badge {
  display: inline-block;
  margin: 10px 0;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(243, 180, 100, 0.45);
  background: rgba(243, 180, 100, 0.14);
  letter-spacing: 0.12em;
}

.hidden {
  display: none !important;
}

.login-overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(5, 8, 10, 0.7);
  backdrop-filter: blur(18px);
  z-index: 10;
}

.login-overlay.hidden {
  display: none;
}

.login-card {
  width: min(460px, 100%);
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(10, 16, 20, 0.9);
  box-shadow: var(--shadow);
  padding: 28px;
}

.interactive-overlay {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  background: rgba(5, 8, 10, 0.78);
  backdrop-filter: blur(18px);
  z-index: 12;
}

.interactive-card {
  width: min(640px, 100%);
  border: 1px solid var(--line);
  border-radius: 28px;
  background: rgba(10, 16, 20, 0.96);
  box-shadow: var(--shadow);
  padding: 28px;
}

.interactive-subtitle,
.interactive-question-copy,
.interactive-option-copy span,
.interactive-detail code {
  color: var(--muted);
}

.interactive-subtitle {
  margin: 12px 0 0;
  line-height: 1.6;
}

.interactive-details,
.interactive-questions {
  display: grid;
  gap: 14px;
  margin-top: 20px;
}

.interactive-detail,
.interactive-question,
.interactive-option {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.03);
}

.interactive-detail,
.interactive-question {
  padding: 14px 16px;
}

.interactive-detail strong,
.interactive-option-copy strong {
  display: block;
  margin-bottom: 6px;
}

.interactive-detail code {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.84rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.interactive-question {
  display: grid;
  gap: 14px;
}

.interactive-question-head .eyebrow {
  margin-bottom: 6px;
}

.interactive-question-copy {
  margin: 0;
  line-height: 1.55;
}

.interactive-options {
  display: grid;
  gap: 12px;
}

.interactive-option {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 14px 16px;
}

.interactive-option input[type="radio"] {
  margin-top: 4px;
}

.interactive-option-copy {
  display: grid;
  gap: 4px;
  min-width: 0;
}

.interactive-input {
  width: 100%;
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  padding: 12px 14px;
  outline: 0;
}

.interactive-inline-input {
  grid-column: 2;
  margin-top: 8px;
}

.interactive-actions {
  justify-content: flex-end;
  margin-top: 22px;
}

.login-copy {
  color: var(--muted);
  line-height: 1.6;
  margin: 14px 0 18px;
}

.error-text {
  min-height: 1.4em;
  color: var(--rose);
  margin: 10px 0 0;
}

@media (max-width: 1200px) {
  .shell {
    grid-template-columns: 1fr;
  }

  .resizer {
    display: none !important;
  }

  .sidebar {
    position: static;
    max-height: none;
    padding-right: 0;
    grid-template-rows: auto auto minmax(220px, 1fr) minmax(220px, 1fr);
  }

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

  .activity-pane {
    grid-template-rows: auto auto auto;
  }

  .mainstage {
    min-height: auto;
    grid-template-rows: auto minmax(700px, auto) 280px;
  }
}

@media (max-width: 720px) {
  .shell {
    padding: 12px;
    gap: 14px;
  }

  .meta-grid,
  .composer,
  .terminal-form {
    grid-template-columns: 1fr;
  }

  .topbar,
  .section-head,
  .terminal-head,
  .prompt-copy,
  .panel-head {
    align-items: flex-start;
    flex-direction: column;
  }

  .brand-card,
  .auth-card,
  .sidebar-section,
  .panel,
  .info-card,
  .interactive-card,
  .login-card-side,
  .activity-card,
  .terminal-pane {
    padding: 16px;
  }

  .card,
  .workspace-main,
  .activity-pane,
  .terminal-pane {
    border-radius: 22px;
  }
}