/* ==========================================================================
   LogoCraft Studio — dark collaborative LOGO workspace
   Design tokens follow ux/.../vector_creative_code_studio/DESIGN.md
   ========================================================================== */

:root {
  --surface: #0b1326;
  --surface-dim: #0b1326;
  --surface-container-lowest: #060e20;
  --surface-container-low: #131b2e;
  --surface-container: #171f33;
  --surface-container-high: #222a3d;
  --surface-container-highest: #2d3449;
  --surface-bright: #31394d;

  --on-surface: #dae2fd;
  --on-surface-variant: #bbcabf;
  --outline: #86948a;
  --outline-variant: #3c4a42;

  --primary: #4edea3;
  --on-primary: #003824;
  --primary-container: #10b981;
  --on-primary-container: #00422b;
  --primary-fixed: #6ffbbe;
  --primary-fixed-dim: #4edea3;

  --secondary: #4cd7f6;
  --tertiary: #d0bcff;
  --tertiary-container: #b090ff;

  --error: #ffb4ab;
  --error-container: #93000a;
  --on-error-container: #ffdad6;
  --warning: #fbbf24;

  --font-ui: 'Geist', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, 'Cascadia Code', Consolas, monospace;

  --radius: 4px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --topbar-height: 56px;
  --sidebar-width: 256px;
}

* { box-sizing: border-box; }

html, body, #root { height: 100%; margin: 0; }

body {
  font-family: var(--font-ui);
  font-size: 13px;
  color: var(--on-surface);
  background: var(--surface);
  overscroll-behavior: none;
  -webkit-font-smoothing: antialiased;
}

button, input, select { font: inherit; }

button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .45; }

::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface-container-highest); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: var(--bright, #3b4664); }

:focus-visible { outline: 1px solid var(--primary); outline-offset: 2px; }

.ms {
  font-family: 'Material Symbols Outlined';
  font-weight: normal;
  font-style: normal;
  font-size: 18px;
  line-height: 1;
  letter-spacing: normal;
  text-transform: none;
  display: inline-block;
  white-space: nowrap;
  word-wrap: normal;
  direction: ltr;
  font-feature-settings: 'liga';
  -webkit-font-smoothing: antialiased;
  font-variation-settings: 'FILL' 0, 'wght' 400, 'GRAD' 0, 'opsz' 24;
}

.is-hidden { display: none !important; }

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */

.app {
  height: 100%;
  background: var(--surface);
}

.shell {
  margin-left: var(--sidebar-width);
  padding-top: var(--topbar-height);
  height: 100%;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.content {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  background: var(--surface-container-lowest);
}

/* --------------------------------------------------------------------------
   Top bar
   -------------------------------------------------------------------------- */

.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--topbar-height);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 14px;
  background: rgba(19, 27, 46, .92);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, .06);
}

.topbar-left,
.topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.topbar-divider,
.subheader-divider {
  width: 1px;
  height: 20px;
  background: rgba(255, 255, 255, .1);
  flex: 0 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.brand-mark {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  color: #03251a;
  font-weight: 800;
  font-size: 14px;
}

.brand-name {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -.01em;
}

.room-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 6px 4px 8px;
  border-radius: var(--radius);
  background: var(--surface-container);
  border: 1px solid rgba(255, 255, 255, .04);
  min-width: 0;
}

.room-chip .ms { color: var(--secondary); font-size: 15px; }

.room-id {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--on-surface);
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 220px;
  white-space: nowrap;
}

.presence-pills {
  display: flex;
  align-items: center;
  gap: 4px;
}

.presence-pill {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 2px 7px;
  border-radius: 999px;
  background: rgba(34, 42, 61, .8);
  border: 1px solid var(--outline-variant);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--on-surface);
  white-space: nowrap;
}

.presence-more {
  padding: 2px 7px;
  border-radius: 999px;
  background: var(--surface-container-highest);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--on-surface-variant);
  white-space: nowrap;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--outline);
  display: inline-block;
  flex: 0 0 auto;
}

.status-dot.ok { background: var(--primary); box-shadow: 0 0 8px rgba(78, 222, 163, .6); }
.status-dot.wait { background: var(--warning); }
.status-dot.bad { background: var(--error); }

.avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--primary);
  color: var(--on-primary);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  flex: 0 0 auto;
}

/* --------------------------------------------------------------------------
   Buttons, menus, badges
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: .02em;
  white-space: nowrap;
  transition: background .15s ease, color .15s ease, border-color .15s ease, transform .1s ease;
}

.btn:active { transform: scale(.98); }
.btn .ms { font-size: 16px; }

.btn-sm { padding: 5px 10px; }
.btn-xs { padding: 3px 8px; font-size: 10px; }
.btn-xs .ms { font-size: 14px; }

.btn-primary {
  background: var(--primary-container);
  color: #03251a;
  box-shadow: 0 0 16px rgba(16, 185, 129, .22);
}

.btn-primary:hover { background: var(--primary); }

.btn-ghost {
  background: rgba(255, 255, 255, .05);
  color: var(--on-surface-variant);
  border-color: rgba(255, 255, 255, .08);
}

.btn-ghost:hover {
  background: var(--surface-container-high);
  color: var(--on-surface);
}

.btn-ghost.danger { color: var(--error); }
.btn-ghost.danger:hover { background: rgba(239, 68, 68, .12); color: #ffd1cb; }
.btn-ghost.active {
  background: rgba(78, 222, 163, .12);
  color: var(--primary);
  border-color: rgba(78, 222, 163, .3);
}

.ghost-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 8px;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  color: var(--on-surface-variant);
  font-family: var(--font-ui);
  font-size: 12px;
  white-space: nowrap;
}

.ghost-btn:hover { background: var(--surface-container); color: var(--on-surface); }
.ghost-btn.tiny { padding: 3px 6px; font-family: var(--font-mono); font-size: 10px; }
.ghost-btn.tiny .ms { font-size: 15px; }
.ghost-btn.active { color: var(--primary); background: rgba(78, 222, 163, .1); }
.ghost-btn.primary { color: var(--primary); }

.icon-btn {
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  color: var(--on-surface-variant);
  flex: 0 0 auto;
}

.icon-btn:hover { background: var(--surface-container-high); color: var(--on-surface); }
.icon-btn.tiny { width: 24px; height: 24px; }
.icon-btn.tiny .ms { font-size: 15px; }
.icon-btn .ms { font-size: 18px; }

.mobile-menu { display: none; }

.menu-wrap { position: relative; }

.menu-backdrop {
  position: fixed;
  inset: 0;
  z-index: 55;
  background: transparent;
}

.dropdown {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  z-index: 60;
  min-width: 220px;
  max-height: 70vh;
  overflow: auto;
  padding: 4px;
  border-radius: var(--radius-lg);
  background: var(--surface-container-highest);
  border: 1px solid rgba(255, 255, 255, .12);
  box-shadow: 0 18px 40px rgba(0, 0, 0, .45);
}

.dropdown-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 8px;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  color: var(--on-surface-variant);
  font-size: 12px;
  text-align: left;
}

.dropdown-item:hover { background: var(--surface-container); color: var(--on-surface); }
.dropdown-item.danger { color: var(--error); }
.dropdown-item .ms { font-size: 16px; color: var(--outline); }
.dropdown-item.danger .ms { color: var(--error); }

.dropdown-sep { height: 1px; margin: 4px 6px; background: rgba(255, 255, 255, .08); }

.dropdown-label {
  padding: 6px 8px 2px;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--outline);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 6px;
  border-radius: var(--radius);
  background: var(--surface-container-high);
  color: var(--outline);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .04em;
  white-space: nowrap;
}

.badge.primary { background: rgba(78, 222, 163, .14); color: var(--primary); }
.badge.step { background: rgba(251, 191, 36, .14); color: #fde68a; }

/* --------------------------------------------------------------------------
   Sidebar
   -------------------------------------------------------------------------- */

.sidebar {
  position: fixed;
  top: var(--topbar-height);
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  z-index: 40;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background: var(--surface-container-lowest);
  border-right: 1px solid rgba(255, 255, 255, .06);
}

.sidebar-scroll {
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}

.sidebar-label {
  padding: 10px 8px 6px;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--outline);
}

.nav { display: flex; flex-direction: column; gap: 2px; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  color: var(--on-surface-variant);
  font-family: var(--font-ui);
  font-size: 12px;
  text-align: left;
}

.nav-item:hover { background: var(--surface-container-high); color: var(--on-surface); }

.nav-item.active {
  background: var(--surface-container);
  color: var(--primary);
  font-weight: 600;
}

.nav-item .ms { font-size: 18px; }

.sidebar-footer {
  padding: 8px;
  background: rgba(19, 27, 46, .6);
  border-top: 1px solid rgba(255, 255, 255, .05);
}

.status-card {
  padding: 10px;
  border-radius: var(--radius);
  background: var(--surface-container);
}

.status-card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--on-surface-variant);
}

.status-card-value {
  margin-top: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--primary-fixed);
}

.status-card-meta {
  margin-top: 4px;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--outline);
}

/* --------------------------------------------------------------------------
   Subheader
   -------------------------------------------------------------------------- */

.subheader {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  padding: 8px 14px;
  background: var(--surface-container-low);
  border-bottom: 1px solid rgba(255, 255, 255, .06);
}

.subheader-left,
.subheader-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  min-width: 0;
}

.room-block { display: flex; align-items: center; gap: 8px; }
.room-block > .status-dot { width: 8px; height: 8px; }
.room-line { display: flex; align-items: baseline; gap: 6px; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--outline);
}

.room-name { font-size: 15px; font-weight: 600; letter-spacing: -.01em; }

.room-meta {
  display: flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--outline);
}

.status { font-family: var(--font-mono); font-size: 9px; }
.status.ok { color: var(--primary); }
.status.wait { color: var(--warning); }
.status.bad { color: var(--error); }

.quick-actions { display: flex; align-items: center; gap: 2px; }

.avatar-stack {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 2px 6px;
  border-radius: 999px;
  background: var(--surface-container);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, .2);
}

.peer {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 2px 7px 2px 2px;
  border-radius: 999px;
  background: var(--surface-container-high);
  border: 1px solid var(--outline-variant);
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--on-surface);
  white-space: nowrap;
}

.peer-initial {
  width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-size: 8px;
  font-weight: 700;
}

.peer-you { color: var(--primary); }

.peer-empty {
  padding: 0 6px;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--outline);
}

.avatar-more {
  width: 20px;
  height: 20px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--surface-container-highest);
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--on-surface-variant);
}

.run-cluster { display: flex; align-items: center; gap: 4px; }

/* --------------------------------------------------------------------------
   Workspace: editor + canvas
   -------------------------------------------------------------------------- */

.workspace {
  height: 100%;
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  min-height: 0;
}

.editor-pane {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: var(--surface-container-low);
  border-right: 1px solid rgba(255, 255, 255, .06);
}

.editor-tabs {
  flex: 0 0 auto;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px;
  background: var(--surface-container);
  border-bottom: 1px solid rgba(255, 255, 255, .06);
}

.tab-list { display: flex; align-items: stretch; gap: 2px; height: 100%; }

.tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 12px;
  border: 0;
  border-top: 1px solid transparent;
  border-radius: var(--radius) var(--radius) 0 0;
  background: transparent;
  color: var(--on-surface-variant);
  font-family: var(--font-mono);
  font-size: 10px;
  white-space: nowrap;
}

.tab:hover { color: var(--on-surface); background: var(--surface-container-high); }

.tab.active {
  background: var(--surface-container-low);
  color: var(--primary);
  border-top-color: var(--primary);
}

.tab .ms { font-size: 15px; }

.tab-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  margin-left: 2px;
}

.tab-meta { display: flex; align-items: center; gap: 6px; }

.editors {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
}

.editor-host,
.notes-host {
  height: 100%;
  min-height: 0;
  background: var(--surface-container-low);
}

.editor-host .cm-editor,
.notes-host .cm-editor,
.editor-host .cm-scroller,
.notes-host .cm-scroller { height: 100%; }

.cm-editor.cm-focused { outline: none; }
.cm-tooltip { z-index: 70; }

.cm-breakpoint-gutter {
  width: 16px;
  cursor: pointer;
}

.cm-breakpoint-gutter .cm-gutterElement {
  display: flex;
  align-items: center;
  justify-content: center;
}

.cm-breakpoint-gutter .cm-gutterElement:hover { background: rgba(248, 113, 113, .08); }

.cm-breakpoint-dot {
  display: block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #f87171;
  box-shadow: 0 0 6px rgba(248, 113, 113, .7);
}

.cm-breakpoint-spacer {
  display: block;
  width: 8px;
  height: 8px;
}

/* Always show collaborator names at remote cursors (y-codemirror hides them until hover). */
.cm-editor .cm-ySelectionInfo {
  opacity: 1 !important;
  top: -1.35em;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .02em;
  line-height: 1.4;
  padding: 1px 5px;
  border-radius: 3px 3px 3px 0;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, .4);
  box-shadow: 0 2px 6px rgba(0, 0, 0, .3);
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   REPL
   -------------------------------------------------------------------------- */

.repl {
  flex: 0 0 230px;
  min-height: 170px;
  display: flex;
  flex-direction: column;
  background: var(--surface-container-lowest);
  border-top: 1px solid rgba(255, 255, 255, .07);
}

.repl-header {
  flex: 0 0 30px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 10px;
  background: var(--surface-container);
  border-bottom: 1px solid rgba(255, 255, 255, .05);
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--on-surface);
}

.repl-header .ms { font-size: 15px; color: var(--primary); }
.repl-title { white-space: nowrap; }
.spacer { flex: 1; }

.program-status {
  flex: 0 0 auto;
  max-height: 70px;
  overflow: auto;
  padding: 4px 10px;
  border-bottom: 1px solid rgba(255, 255, 255, .04);
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--on-surface-variant);
}

.console-stats { color: var(--outline); margin-right: 10px; }
.console-out { display: block; white-space: pre-wrap; }
.console-err { color: #fca5a5; white-space: pre-wrap; margin-top: 2px; }

.repl-log {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 4px 10px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-family: var(--font-mono);
  font-size: 10px;
}

.repl-line { display: flex; gap: 6px; color: var(--on-surface-variant); }
.repl-time { color: var(--outline); flex: 0 0 auto; }
.repl-sender { flex: 0 0 auto; font-weight: 600; }
.repl-text { white-space: pre-wrap; word-break: break-word; }

.repl-line.command .repl-sender { color: var(--secondary); }
.repl-line.output .repl-sender { color: var(--primary-fixed); }
.repl-line.error .repl-sender,
.repl-line.error .repl-text { color: #fca5a5; }
.repl-line.system .repl-sender { color: var(--tertiary); }
.repl-line.system .repl-text { color: var(--outline); }

.repl-input-row {
  flex: 0 0 38px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  background: var(--surface-container-low);
  border-top: 1px solid rgba(255, 255, 255, .05);
}

.repl-input-row:focus-within { box-shadow: inset 0 -1px 0 rgba(6, 182, 212, .5); }

.repl-prompt {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 700;
  color: var(--secondary);
  padding-left: 2px;
}

.repl-input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: none;
  background: transparent;
  color: var(--on-surface);
  font-family: var(--font-mono);
  font-size: 12px;
}

.repl-input::placeholder { color: rgba(134, 148, 138, .55); }

/* --------------------------------------------------------------------------
   Canvas
   -------------------------------------------------------------------------- */

.canvas-pane { min-width: 0; min-height: 0; background: var(--surface); }

.canvas-surface {
  position: relative;
  height: 100%;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 45%, rgba(16, 185, 129, .045), transparent 55%),
    var(--surface-container-lowest);
}

.canvas-surface.view-3d {
  cursor: grab;
  touch-action: none;
  user-select: none;
}

.canvas-surface.view-3d.dragging { cursor: grabbing; }

.canvas { display: block; width: 100%; height: 100%; }
.turtle-paths { filter: drop-shadow(0 0 3px rgba(78, 222, 163, .2)); }

.hud {
  display: flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  background: rgba(23, 31, 51, .9);
  border: 1px solid rgba(255, 255, 255, .09);
  backdrop-filter: blur(12px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, .25);
  color: var(--on-surface);
}

.hud-top {
  position: absolute;
  top: 12px;
  left: 12px;
  right: 12px;
  z-index: 20;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  background: transparent;
  border: 0;
  box-shadow: none;
  backdrop-filter: none;
  pointer-events: none;
}

.hud-top > * { pointer-events: auto; }

.telemetry { padding: 6px 12px; flex-wrap: wrap; }

.telemetry-item { display: flex; align-items: center; gap: 4px; }

.telemetry-label {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--outline);
}

.telemetry-value {
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  color: var(--on-surface);
  font-variant-numeric: tabular-nums;
}

.telemetry-value.primary { color: var(--primary); }
.telemetry-value.secondary { color: var(--secondary); }
.telemetry-value.tertiary { color: var(--tertiary); }
.telemetry-value.muted { color: var(--on-surface-variant); }

.telemetry-sep { color: var(--outline-variant); font-size: 9px; }

.canvas-tools {
  padding: 3px 4px;
  border-radius: var(--radius-lg);
  gap: 2px;
}

.zoom-value {
  min-width: 38px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--on-surface);
}

.tool-sep {
  width: 1px;
  height: 16px;
  margin: 0 3px;
  background: rgba(255, 255, 255, .1);
}

.hud-sep {
  width: 1px;
  height: 16px;
  margin: 0 2px;
  background: rgba(255, 255, 255, .1);
}

.hud-bottom {
  position: absolute;
  bottom: 12px;
  left: 12px;
  z-index: 20;
  padding: 6px 12px;
  flex-wrap: wrap;
  max-width: calc(100% - 24px);
}

.hud-bottom .ms { font-size: 15px; color: var(--tertiary); }

.hud-label {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--outline);
  white-space: nowrap;
}

.hud-value {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--primary-fixed);
  font-variant-numeric: tabular-nums;
}

.slider {
  width: 96px;
  height: 3px;
  accent-color: var(--primary);
  cursor: pointer;
}

.canvas-watermark {
  position: absolute;
  right: 14px;
  bottom: 15px;
  z-index: 10;
  max-width: 45%;
  padding: 3px 7px;
  border-radius: var(--radius);
  background: var(--surface-container-high);
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--outline);
  opacity: .65;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
}

.canvas-watermark.playing {
  color: var(--primary);
  opacity: 1;
  border: 1px solid rgba(78, 222, 163, .28);
  box-shadow: 0 0 16px rgba(16, 185, 129, .18);
}

/* --------------------------------------------------------------------------
   Panel views
   -------------------------------------------------------------------------- */

.panel-view {
  height: 100%;
  overflow: auto;
  padding: 24px;
  background: var(--surface-container-lowest);
}

.panel-header { margin-bottom: 16px; }

.panel-title {
  margin: 0;
  font-size: 24px;
  font-weight: 600;
  letter-spacing: -.02em;
}

.panel-subtitle {
  margin: 4px 0 0;
  color: var(--on-surface-variant);
  font-size: 12px;
  line-height: 1.5;
}

.panel-card {
  padding: 14px;
  margin-bottom: 14px;
  border-radius: var(--radius-lg);
  background: var(--surface-container-low);
  border: 1px solid rgba(255, 255, 255, .06);
}

.panel-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}

.panel-note {
  margin: 0;
  color: var(--outline);
  font-size: 11px;
  line-height: 1.65;
}

.room-list { display: flex; flex-direction: column; gap: 4px; }

.room-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  border-radius: var(--radius);
  background: var(--surface-container);
  border-left: 2px solid transparent;
}

.room-row.active { border-left-color: var(--primary); background: var(--surface-container-high); }
.room-row-main { display: flex; align-items: center; gap: 8px; min-width: 0; }
.room-row-main .ms { font-size: 15px; color: var(--outline); }
.room-row-id { font-family: var(--font-mono); font-size: 11px; overflow: hidden; text-overflow: ellipsis; }
.room-row-actions { display: flex; align-items: center; gap: 4px; flex: 0 0 auto; }

.info-block {
  padding: 10px;
  margin-bottom: 10px;
  border-radius: 6px;
  background: var(--surface-container);
}

.info-label {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--outline);
}

.info-value { margin-top: 4px; font-size: 13px; }

.invite-row { display: flex; align-items: center; gap: 8px; margin-top: 6px; }

.invite-link {
  flex: 1;
  min-width: 0;
  padding: 6px 8px;
  border-radius: var(--radius);
  background: var(--surface-container-high);
  color: var(--secondary);
  font-family: var(--font-mono);
  font-size: 11px;
  overflow: auto;
  white-space: nowrap;
}

.participant-list { display: flex; flex-direction: column; gap: 6px; margin-top: 8px; }

.participant {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 7px 9px;
  border-radius: var(--radius);
  background: var(--surface-container);
}

.participant-initial {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  flex: 0 0 auto;
}

.participant-name { font-size: 12px; }
.participant-meta { margin-top: 1px; font-family: var(--font-mono); font-size: 9px; color: var(--outline); }

.reference-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 12px;
}

.reference-card {
  padding: 12px;
  border-radius: var(--radius-lg);
  background: var(--surface-container-low);
  border: 1px solid rgba(255, 255, 255, .06);
}

.reference-title {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--primary);
}

.reference-code {
  display: block;
  padding: 2px 0;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--on-surface-variant);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 14px;
}

.stat-card {
  padding: 12px;
  border-radius: var(--radius-lg);
  background: var(--surface-container-low);
  border: 1px solid rgba(255, 255, 255, .06);
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--outline);
}

.stat-value {
  margin-top: 6px;
  font-size: 20px;
  font-weight: 600;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
}

/* --------------------------------------------------------------------------
   Settings modal
   -------------------------------------------------------------------------- */

.overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(6, 14, 32, .72);
  backdrop-filter: blur(8px);
}

.modal {
  width: min(760px, 100%);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: var(--radius-xl);
  background: var(--surface-container-low);
  border: 1px solid rgba(255, 255, 255, .12);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .55);
}

.modal.name-modal { width: min(520px, 100%); }

.text-input {
  flex: 1;
  min-width: 0;
  padding: 7px 9px;
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, .12);
  background: var(--surface-container-high);
  color: var(--on-surface);
  font-family: var(--font-ui);
  font-size: 12px;
}

.text-input:focus {
  outline: none;
  border-color: rgba(6, 182, 212, .5);
  box-shadow: 0 0 0 1px rgba(6, 182, 212, .25);
}

.text-input::placeholder { color: rgba(134, 148, 138, .6); }

.name-warning {
  margin-top: 8px;
  padding: 7px 9px;
  border-radius: var(--radius);
  background: rgba(251, 191, 36, .1);
  border: 1px solid rgba(251, 191, 36, .25);
  color: #fde68a;
  font-size: 11px;
  line-height: 1.45;
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  background: var(--surface-container);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.modal-title-row { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.modal-title-row .ms { color: var(--primary); font-size: 20px; }
.modal-title { margin: 0; font-size: 16px; font-weight: 600; }

.modal-subtitle {
  margin: 3px 0 0;
  color: var(--on-surface-variant);
  font-size: 11px;
  line-height: 1.5;
}

.modal-tabs {
  display: flex;
  align-items: stretch;
  padding: 0 12px;
  background: var(--surface-container-lowest);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  overflow-x: auto;
}

.modal-tab {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 12px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  color: var(--on-surface-variant);
  font-family: var(--font-mono);
  font-size: 10px;
  white-space: nowrap;
}

.modal-tab:hover { color: var(--on-surface); }
.modal-tab.active { color: var(--primary); border-bottom-color: var(--primary); }
.modal-tab .ms { font-size: 16px; }

.modal-body { flex: 1; min-height: 0; overflow: auto; padding: 16px; }

.modal-section-title {
  margin: 16px 0 8px;
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--outline);
}

.modal-section-title:first-child { margin-top: 0; }

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .05);
  cursor: pointer;
}

.toggle-label { font-size: 12px; }
.toggle-desc { margin-top: 2px; font-size: 10px; color: var(--outline); line-height: 1.4; }

.switch {
  width: 34px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
  flex: 0 0 auto;
}

.inline-control { display: flex; align-items: center; gap: 8px; flex: 0 0 auto; }

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-top: 1px solid rgba(255, 255, 255, .08);
  background: var(--surface-container-lowest);
}

.modal-footer-note {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--outline);
}

/* --------------------------------------------------------------------------
   About dialog
   -------------------------------------------------------------------------- */

.modal.about-modal { width: min(620px, 100%); }

.about-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  min-width: 0;
}

.about-mark {
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--primary), var(--primary-container));
  color: #03251a;
  font-family: var(--font-mono);
  font-size: 17px;
  font-weight: 800;
}

.about-note {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, .1);
  background: var(--surface-container);
  line-height: 1.55;
}

.about-note:first-child { margin-top: 0; }

.about-note .ms {
  flex: 0 0 auto;
  font-size: 17px;
  color: var(--secondary);
}

.about-note-title { font-size: 11px; font-weight: 600; color: var(--on-surface); }
.about-note-text { margin-top: 2px; font-size: 11px; color: var(--on-surface-variant); }

.about-note.warning {
  border-color: rgba(251, 191, 36, .28);
  background: rgba(251, 191, 36, .08);
}

.about-note.warning .ms { color: var(--warning); }
.about-note.warning .about-note-title { color: #fde68a; }
.about-note.warning .about-note-text { color: #fde68a; }

.about-rows { display: grid; gap: 6px; }

.about-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 11px;
}

.about-row-label {
  flex: 0 0 86px;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--outline);
}

.about-row-value { color: var(--on-surface); }

.about-link { color: var(--secondary); text-decoration: none; }
.about-link:hover { text-decoration: underline; }

.about-license-details { margin-top: 12px; }

.about-license-details summary {
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--on-surface-variant);
}

.about-license-details summary:hover { color: var(--on-surface); }

.about-license {
  margin: 8px 0 0;
  max-height: 160px;
  overflow: auto;
  padding: 10px 12px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, .07);
  background: var(--surface-container-lowest);
  color: var(--on-surface-variant);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.5;
  white-space: pre-wrap;
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 1400px) {
  .presence-pills { display: none; }
}

@media (max-width: 1024px) {
  .shell { margin-left: 0; }
  .mobile-menu { display: inline-flex; }
  .sidebar {
    transform: translateX(-100%);
    transition: transform .2s ease;
    z-index: 55;
    box-shadow: 18px 0 40px rgba(0, 0, 0, .4);
  }
  .sidebar.open { transform: translateX(0); }
  .topbar-divider { display: none; }
}

@media (max-width: 900px) {
  .content { overflow: auto; }
  .workspace {
    height: auto;
    grid-template-columns: 1fr;
  }
  .editor-pane { min-height: 70vh; border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, .06); }
  .canvas-pane { min-height: 60vh; }
  .canvas-surface { min-height: 60vh; }
  .repl { flex-basis: 210px; }
  .subheader { align-items: flex-start; }
}

@media (max-width: 720px) {
  .brand-name { display: none; }
  .room-id { max-width: 110px; }
  .quick-actions .ghost-btn span:last-child { display: none; }
  .run-cluster .btn-ghost span { display: none; }
  .canvas-tools .ghost-btn > span:not(.ms) { display: none; }
  .hud-bottom .hud-label { display: none; }
  .hud-bottom .slider { width: 64px; }
  .telemetry { gap: 6px; }
  .canvas-watermark { display: none; }
  .tab { padding: 0 9px; }
  .tab span:not(.ms):not(.tab-dot) { font-size: 9px; }
  .panel-view { padding: 16px; }
  .modal { max-height: 94vh; }
}

@media (max-width: 520px) {
  .topbar { padding: 0 8px; gap: 6px; }
  .topbar-right { gap: 4px; }
  .topbar-right .btn-ghost { display: none; }
  .topbar-right .ghost-btn > span { display: none; }
  .topbar-right .ghost-btn { padding: 5px 4px; }
  .avatar { display: none; }
  .subheader { padding: 8px 10px; }
  .subheader-left .quick-actions { display: none; }
  .avatar-stack { max-width: 100%; overflow-x: auto; }
  .editor-tabs { padding: 0 4px; }
  .tab-meta { display: none; }
  .hud-top { left: 8px; right: 8px; top: 8px; }
  .telemetry { padding: 5px 8px; }
  .telemetry-item:nth-child(n+7) { display: none; }
  .hud-bottom { left: 8px; bottom: 8px; padding: 5px 10px; }
  .slider { width: 70px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}