@import url("https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;700&family=JetBrains+Mono:wght@400;600&display=swap");

:root {
  --bg: #0a0f15;
  --bg-panel: #101a26;
  --bg-panel-alt: #131f2e;
  --bg-header: linear-gradient(90deg, #0e1724 0%, #102133 45%, #163149 100%);
  --text: #d5dfeb;
  --text-dim: #8ca1b8;
  --accent: #39b4ff;
  --accent-warm: #ffb347;
  --danger: #ff5d5d;
  --line: #21374d;
  --line-soft: #1a2c3f;
  --shadow: 0 10px 24px rgba(0, 0, 0, 0.35);
  --menu-surface: color-mix(in srgb, var(--bg-panel) 86%, var(--bg) 14%);
  --menu-border: color-mix(in srgb, var(--line) 82%, var(--accent) 18%);
  --menu-hover-bg: color-mix(in srgb, var(--bg-panel-alt) 72%, var(--accent) 28%);
  --menu-hover-border: color-mix(in srgb, var(--line) 48%, var(--accent) 52%);
  --menu-checked-bg: color-mix(in srgb, var(--bg-panel-alt) 46%, var(--accent) 54%);
  --menu-checked-border: color-mix(in srgb, var(--accent) 78%, var(--text) 22%);
  --button-border: color-mix(in srgb, var(--line) 78%, var(--accent) 22%);
  --button-border-hover: color-mix(in srgb, var(--line) 48%, var(--accent) 52%);
  --button-bg: linear-gradient(180deg, color-mix(in srgb, var(--bg-panel-alt) 88%, var(--bg) 12%) 0%, color-mix(in srgb, var(--bg-panel) 88%, var(--bg) 12%) 100%);
  --button-bg-hover: linear-gradient(180deg, color-mix(in srgb, var(--bg-panel-alt) 72%, var(--accent) 28%) 0%, color-mix(in srgb, var(--bg-panel) 72%, var(--accent) 28%) 100%);
  --button-bg-active: linear-gradient(180deg, color-mix(in srgb, var(--accent) 42%, var(--bg-panel-alt) 58%) 0%, color-mix(in srgb, var(--accent) 56%, var(--bg-panel) 44%) 100%);
  --button-active-border: color-mix(in srgb, var(--accent) 78%, var(--text) 22%);
  --button-muted-text: color-mix(in srgb, var(--text-dim) 88%, var(--text) 12%);
  --field-bg: color-mix(in srgb, var(--bg) 54%, var(--bg-panel-alt) 46%);
  --field-border: color-mix(in srgb, var(--line) 74%, var(--accent) 26%);
  --card-border: color-mix(in srgb, var(--line) 78%, var(--accent) 22%);
  --card-bg: color-mix(in srgb, var(--bg-panel) 78%, var(--bg) 22%);
  --card-bg-strong: color-mix(in srgb, var(--bg-panel-alt) 68%, var(--accent) 32%);
  --panel-header-bg: color-mix(in srgb, var(--bg-panel-alt) 88%, var(--accent) 12%);
  --modal-bg: linear-gradient(180deg, color-mix(in srgb, var(--bg-panel-alt) 94%, var(--bg) 6%) 0%, color-mix(in srgb, var(--bg-panel) 90%, var(--bg) 10%) 100%);
  --modal-border: color-mix(in srgb, var(--line) 68%, var(--accent) 32%);
  --status-bg: color-mix(in srgb, var(--bg) 82%, black 18%);
  --context-surface: color-mix(in srgb, var(--bg-panel) 86%, var(--bg) 14%);
  --context-border: color-mix(in srgb, var(--line) 72%, var(--accent) 28%);
  --context-separator: color-mix(in srgb, var(--line-soft) 82%, var(--accent) 18%);
  --badge-bg: color-mix(in srgb, var(--accent) 18%, var(--bg-panel-alt) 82%);
  --badge-border: color-mix(in srgb, var(--accent) 34%, var(--line) 66%);
  --badge-text: color-mix(in srgb, var(--text) 92%, white 8%);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: radial-gradient(circle at 10% 20%, color-mix(in srgb, var(--accent) 22%, var(--bg)) 0%, var(--bg) 52%, color-mix(in srgb, var(--bg) 74%, #000) 100%);
  color: var(--text);
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
}

button,
input,
select {
  font: inherit;
}

code {
  font-family: "JetBrains Mono", monospace;
  color: #afd8ff;
}

.app-shell {
  display: grid;
  grid-template-columns: 280px 1fr 330px;
  grid-template-rows: 90px 1fr 28px;
  grid-template-areas:
    "header header header"
    "outliner viewport inspector"
    "status status status";
  width: 100%;
  height: 100%;
}

.app-shell.is-left-collapsed {
  grid-template-columns: 0 1fr 330px;
}

.app-shell.is-right-collapsed {
  grid-template-columns: 280px 1fr 0;
}

.app-shell.is-left-collapsed.is-right-collapsed {
  grid-template-columns: 0 1fr 0;
}

.headerbar {
  grid-area: header;
  background: var(--bg-header);
  border-bottom: 1px solid var(--line);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.menubar {
  display: flex;
  align-items: stretch;
  gap: 2px;
  min-height: 34px;
  padding: 3px 8px;
  border-bottom: 1px solid rgba(42, 74, 102, 0.6);
  position: relative;
  z-index: 50;
}

.menu-group {
  position: relative;
}

.menu-trigger {
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  padding: 5px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}

.menu-group.is-open .menu-trigger,
.menu-trigger:hover {
  border-color: var(--menu-hover-border);
  background: var(--menu-hover-bg);
}

.menu-dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 240px;
  max-height: none;
  overflow: visible;
  background: var(--menu-surface);
  border: 1px solid var(--menu-border);
  border-radius: 10px;
  box-shadow: 0 16px 28px rgba(0, 0, 0, 0.45);
  padding: 6px;
  display: none;
}

.menu-group.is-open .menu-dropdown {
  display: block;
}

.menu-separator {
  height: 1px;
  background: var(--context-separator);
  margin: 6px 4px;
}

.menu-item {
  width: 100%;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  border-radius: 8px;
  padding: 7px 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  text-align: left;
  cursor: pointer;
  font-size: 13px;
}

.menu-item:hover {
  background: var(--menu-hover-bg);
  border-color: var(--menu-hover-border);
}

.menu-submenu-wrap.is-open > .menu-submenu-trigger {
  background: var(--menu-hover-bg);
  border-color: var(--menu-hover-border);
}

.menu-item.is-checked {
  border-color: var(--menu-checked-border);
  background: var(--menu-checked-bg);
}

.menu-item.is-disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.menu-item-shortcut {
  color: var(--text-dim);
  font-size: 11px;
}

.menu-submenu-wrap {
  position: relative;
}

.menu-submenu-wrap.is-open {
  z-index: 2;
}

.menu-submenu-panel {
  position: absolute;
  left: calc(100% + 10px);
  top: -6px;
  min-width: 240px;
  background: var(--menu-surface);
  border: 1px solid var(--menu-border);
  border-radius: 10px;
  box-shadow: 0 16px 28px rgba(0, 0, 0, 0.45);
  padding: 6px;
  display: none;
}

.menu-submenu-wrap.is-open > .menu-submenu-panel {
  display: block;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  overflow-x: auto;
  min-height: 54px;
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 6px;
  padding-right: 10px;
  margin-right: 4px;
  border-right: 1px solid var(--line-soft);
}

.toolbar-group:last-child {
  border-right: none;
}

.toolbar button,
.toolbar select {
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--text);
  padding: 6px 9px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 12px;
  white-space: nowrap;
  transition: 120ms ease;
}

.toolbar button:hover,
.toolbar select:hover {
  border-color: var(--button-border-hover);
  background: var(--button-bg-hover);
}

.toolbar button.is-active {
  background: var(--button-bg-active);
  border-color: var(--button-active-border);
}

.toolbar button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.toolbar-frames {
  gap: 4px;
}

.toolbar-frame-label {
  font-size: 11px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.toolbar-frames select {
  min-width: 140px;
}

.toolbar-toggle {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0 4px;
  font-size: 12px;
  color: var(--text-dim);
}

.panel {
  background: linear-gradient(180deg, var(--bg-panel) 0%, var(--bg-panel-alt) 100%);
  border-right: 1px solid var(--line);
  border-left: 1px solid var(--line);
  overflow: hidden;
}

.app-shell.is-left-collapsed .panel-left {
  width: 0;
  min-width: 0;
  border: none;
}

.app-shell.is-right-collapsed .panel-right {
  width: 0;
  min-width: 0;
  border: none;
}

.panel-left {
  grid-area: outliner;
  border-left: none;
}

.panel-right {
  grid-area: inspector;
  border-right: none;
}

.viewport-wrap {
  grid-area: viewport;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 75% 15%, rgba(63, 128, 193, 0.15) 0%, rgba(11, 17, 25, 0) 40%),
    linear-gradient(180deg, #0c131d 0%, #0b121a 100%);
}

.panel-expand {
  position: absolute;
  top: 114px;
  z-index: 35;
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--text);
  border-radius: 8px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  display: none;
}

.panel-expand.left {
  left: 10px;
}

.panel-expand.right {
  right: 10px;
}

.app-shell.is-left-collapsed .panel-expand.left {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.app-shell.is-right-collapsed .panel-expand.right {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.viewport {
  width: 100%;
  height: 100%;
}

.viewport canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.panel-header {
  padding: 10px 12px;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--text-dim);
  border-bottom: 1px solid var(--line);
  background: var(--panel-header-bg);
}

.panel-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.panel-collapse-btn {
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--button-muted-text);
  border-radius: 7px;
  padding: 3px 8px;
  font-size: 11px;
  cursor: pointer;
}

.outliner-scroll,
.inspector-scroll {
  overflow: auto;
  height: calc(100% - 41px);
}

.outliner-empty,
.inspector-empty {
  padding: 16px;
  color: var(--text-dim);
}

.outliner-subhead {
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 8px 12px 4px;
}

.outliner-list {
  list-style: none;
  margin: 0;
  padding: 0 0 0 12px;
}

.outliner-item {
  margin: 2px 0;
}

.outliner-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 6px;
  cursor: pointer;
}

.outliner-row-folder {
  background: color-mix(in srgb, var(--accent-warm) 10%, transparent);
}

.outliner-row-group {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
}

.outliner-row:hover {
  background: var(--menu-hover-bg);
}

.outliner-row.is-selected {
  border-color: var(--button-active-border);
  background: var(--button-bg-active);
}

.outliner-row.is-drop-target {
  border-color: var(--accent-warm);
}

.outliner-row-frame {
  background: color-mix(in srgb, var(--accent) 18%, transparent);
}

.outliner-row-function {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}

.outliner-list-frames,
.outliner-list-functions {
  padding-left: 18px;
}

.outliner-icon {
  min-width: 28px;
  color: color-mix(in srgb, var(--accent) 72%, var(--text) 28%);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.outliner-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}

.outliner-actions {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-left: auto;
}

.outliner-action-btn {
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--button-muted-text);
  border-radius: 6px;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 10px;
  line-height: 1;
  padding: 0;
}

.outliner-toggle-btn {
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--button-muted-text);
  border-radius: 6px;
  width: 20px;
  height: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 11px;
  line-height: 1;
  padding: 0;
  flex: 0 0 auto;
}

.outliner-toggle-btn.is-empty {
  opacity: 0;
  pointer-events: none;
}

.outliner-action-btn:hover {
  border-color: var(--button-border-hover);
  background: var(--button-bg-hover);
  color: var(--text);
}

.outliner-action-btn-danger:hover {
  border-color: color-mix(in srgb, var(--danger) 72%, var(--line) 28%);
  color: var(--danger);
}

.inspector-section {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line-soft);
}

.inspector-section h3 {
  margin: 0 0 8px;
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.inspector-section label {
  display: block;
  font-size: 13px;
  margin-bottom: 8px;
}

.inspector-section input[type="text"],
.inspector-section input[type="number"],
.inspector-section select {
  width: 100%;
  margin-top: 4px;
  padding: 6px 8px;
  border-radius: 8px;
  border: 1px solid var(--field-border);
  background: var(--field-bg);
  color: var(--text);
}

.inspector-section input[type="color"] {
  width: 100%;
  margin-top: 4px;
  height: 34px;
  padding: 2px;
  border-radius: 8px;
  border: 1px solid var(--field-border);
  background: var(--field-bg);
}

.inspector-section input[type="checkbox"] {
  transform: translateY(1px);
  margin-right: 6px;
}

.prop-line {
  font-size: 12px;
  margin-bottom: 8px;
  color: var(--text-dim);
}

.vec-row {
  display: grid;
  grid-template-columns: 64px repeat(3, minmax(0, 1fr));
  gap: 6px;
  align-items: center;
  margin-bottom: 8px;
}

.vec-row > span {
  font-size: 12px;
  color: var(--text-dim);
}

.vec-row-fn {
  grid-template-columns: 64px repeat(3, minmax(0, 1fr));
}

.inspector-inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}

.inspector-inline-actions button,
.inspector-inline-actions select {
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--text);
  border-radius: 7px;
  padding: 5px 8px;
  font-size: 12px;
}

.inspector-list {
  display: grid;
  gap: 6px;
}

.inspector-list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  padding: 6px;
  font-size: 12px;
}

.inspector-list-item > div {
  display: flex;
  gap: 4px;
}

.inspector-list-item button {
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--text);
  border-radius: 7px;
  padding: 4px 6px;
  font-size: 11px;
}

.inspector-empty-mini {
  color: var(--text-dim);
  font-size: 12px;
  padding: 6px 2px;
}

.function-card {
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 8px;
  margin-bottom: 8px;
  background: var(--card-bg);
}

.function-card.is-active {
  border-color: var(--button-active-border);
  background: var(--card-bg-strong);
}

.function-card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.function-card-head > div {
  display: flex;
  gap: 4px;
}

.function-card-head button {
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--text);
  border-radius: 7px;
  padding: 3px 6px;
  font-size: 11px;
}

.statusbar {
  grid-area: status;
  display: flex;
  align-items: center;
  padding: 0 12px;
  font-size: 12px;
  color: var(--text-dim);
  border-top: 1px solid var(--line);
  background: var(--status-bg);
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(7, 10, 15, 0.72);
  backdrop-filter: blur(3px);
  z-index: 90;
  align-items: center;
  justify-content: center;
}

.modal-shell {
  width: min(520px, calc(100vw - 40px));
  max-height: min(80vh, 740px);
  background: var(--modal-bg);
  border: 1px solid var(--modal-border);
  border-radius: 14px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.modal-header,
.modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px;
  border-bottom: 1px solid var(--field-border);
}

.modal-footer {
  border-top: 1px solid var(--field-border);
  border-bottom: none;
}

.modal-header h2 {
  margin: 0;
  font-size: 16px;
}

.modal-header button,
.modal-footer button {
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
}

.modal-body {
  padding: 14px 12px;
  overflow: auto;
  display: grid;
  gap: 10px;
}

.help-modal-shell {
  width: min(760px, calc(100vw - 40px));
  max-height: min(84vh, 860px);
}

.help-backdrop {
  z-index: 100;
}

.help-modal-subtitle {
  margin-top: 4px;
  font-size: 12px;
  color: var(--text-dim);
}

.help-modal-body {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  align-content: start;
}

.modal-body label {
  display: grid;
  gap: 4px;
  font-size: 13px;
}

.modal-body input[type="number"] {
  border: 1px solid var(--field-border);
  background: var(--field-bg);
  color: var(--text);
  border-radius: 8px;
  padding: 7px 8px;
}

.modal-body input[type="color"] {
  width: 100%;
  min-height: 38px;
  border: 1px solid var(--field-border);
  background: var(--field-bg);
  border-radius: 8px;
  padding: 4px;
}

.modal-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.world-modal-shell {
  width: min(760px, calc(100vw - 40px));
  max-height: min(84vh, 860px);
}

.world-modal-body {
  align-content: start;
}

.world-modal-section {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--field-border);
  border-radius: 12px;
  background: var(--card-bg);
}

.world-modal-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.world-modal-section-head h3 {
  margin: 0;
  font-size: 14px;
}

.world-modal-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
}

.world-modal-inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.world-modal-inline-actions button {
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
}

.world-modal-file-label {
  margin: 0;
  font-size: 12px;
  color: var(--text-dim);
}

.shortcut-section {
  border: 1px solid color-mix(in srgb, var(--card-border) 82%, var(--accent) 18%);
  background:
    linear-gradient(
      180deg,
      color-mix(in srgb, var(--bg-panel-alt) 82%, var(--accent) 18%) 0%,
      color-mix(in srgb, var(--card-bg) 90%, var(--bg) 10%) 100%
    );
  border-radius: 14px;
  padding: 12px;
  display: grid;
  gap: 10px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.shortcut-section-title {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.shortcut-list {
  display: grid;
  gap: 8px;
}

.shortcut-row {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: center;
}

.shortcut-key {
  min-width: 66px;
  border: 1px solid var(--button-border);
  border-bottom-width: 2px;
  border-radius: 10px;
  padding: 6px 9px;
  background: var(--button-bg);
  color: var(--text);
  font-family: "JetBrains Mono", monospace;
  font-size: 12px;
  text-align: center;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.shortcut-description {
  font-size: 13px;
  color: color-mix(in srgb, var(--text) 90%, var(--text-dim) 10%);
  line-height: 1.35;
}

.startup-backdrop {
  position: fixed;
  inset: 0;
  z-index: 99;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 22px;
  background:
    radial-gradient(circle at 18% 20%, color-mix(in srgb, var(--accent) 14%, transparent) 0%, transparent 34%),
    radial-gradient(circle at 80% 14%, color-mix(in srgb, var(--accent-warm) 12%, transparent) 0%, transparent 30%),
    rgba(5, 9, 14, 0.82);
  backdrop-filter: blur(8px);
}

.startup-shell {
  position: relative;
  width: min(1160px, calc(100vw - 44px));
  max-height: min(88vh, 920px);
  overflow: auto;
  border: 1px solid var(--modal-border);
  border-radius: 28px;
  padding: 28px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--bg-panel-alt) 94%, var(--bg) 6%) 0%, color-mix(in srgb, var(--bg-panel) 92%, var(--bg) 8%) 54%, color-mix(in srgb, var(--bg) 82%, black 18%) 100%);
  box-shadow: 0 28px 60px rgba(0, 0, 0, 0.56);
  animation: startup-enter 180ms ease-out;
}

.startup-shell.is-loading {
  overflow: hidden;
}

.startup-loading-panel {
  position: absolute;
  inset: 18px;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  border: 1px solid color-mix(in srgb, var(--button-active-border) 70%, transparent);
  border-radius: 24px;
  background:
    radial-gradient(circle at 18% 16%, color-mix(in srgb, var(--accent) 16%, transparent) 0%, transparent 34%),
    linear-gradient(180deg, rgba(7, 13, 21, 0.9) 0%, rgba(6, 10, 17, 0.95) 100%);
  backdrop-filter: blur(10px);
}

.startup-loading-panel[hidden] {
  display: none;
}

.startup-loading-spinner {
  width: 58px;
  height: 58px;
  border-radius: 50%;
  border: 3px solid rgba(140, 206, 164, 0.16);
  border-top-color: color-mix(in srgb, var(--accent) 78%, white 22%);
  border-right-color: color-mix(in srgb, var(--accent-warm) 42%, white 58%);
  animation: startup-loading-spin 780ms linear infinite;
}

.startup-loading-copy {
  display: grid;
  gap: 6px;
}

.startup-loading-copy strong {
  color: var(--text);
  font-size: 18px;
  line-height: 1.2;
}

.startup-loading-copy span {
  color: var(--text-dim);
  font-size: 13px;
}

.startup-headerbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  padding: 10px 12px;
  border: 1px solid var(--menu-border);
  border-radius: 16px;
  background: color-mix(in srgb, var(--bg-panel) 86%, var(--bg) 14%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.startup-menubar {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.startup-menu-group {
  position: relative;
}

.startup-menu-item,
.startup-menu-link {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 10px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  text-decoration: none;
  cursor: pointer;
  font-size: 13px;
  transition: border-color 120ms ease, background 120ms ease, transform 120ms ease;
}

.startup-menu-item:hover,
.startup-menu-link:hover,
.startup-menu-item.is-open {
  border-color: var(--menu-hover-border);
  background: var(--menu-hover-bg);
}

.startup-menu-item.is-active {
  border-color: var(--menu-checked-border);
  background: var(--menu-checked-bg);
  cursor: default;
}

.startup-menu-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 220px;
  padding: 8px;
  border: 1px solid var(--menu-border);
  border-radius: 14px;
  background: var(--menu-surface);
  box-shadow: 0 18px 34px rgba(0, 0, 0, 0.42);
  display: grid;
  gap: 6px;
  z-index: 3;
}

.startup-menu-dropdown[hidden] {
  display: none;
}

.startup-menu-link {
  width: 100%;
  justify-content: flex-start;
  border-color: var(--button-border);
  background: var(--button-bg);
}

.startup-header-meta {
  color: var(--text-dim);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.startup-brand {
  margin-bottom: 22px;
  padding: 0 0 18px;
  border-bottom: 1px solid var(--field-border);
}

.startup-kicker {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.startup-brand h1 {
  margin: 10px 0 6px;
  font-size: clamp(40px, 7vw, 76px);
  line-height: 0.96;
  letter-spacing: -0.04em;
  color: var(--text);
}

.startup-version {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  background: var(--button-bg);
  border: 1px solid var(--button-border);
  color: var(--text);
  font-size: 14px;
}

.startup-copy {
  max-width: 760px;
  margin: 14px 0 0;
  color: var(--text-dim);
  font-size: 15px;
  line-height: 1.55;
}

.startup-grid {
  display: grid;
  grid-template-columns: minmax(280px, 360px) minmax(0, 1fr);
  gap: 18px;
}

.startup-side-stack {
  display: grid;
  gap: 18px;
  align-content: start;
}

.startup-panel {
  border: 1px solid var(--card-border);
  border-radius: 22px;
  background: var(--card-bg);
  padding: 18px;
}

.startup-panel-title {
  margin-bottom: 14px;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.startup-panel-actions {
  display: grid;
  align-content: start;
  gap: 12px;
}

.startup-action,
.startup-link-button {
  width: 100%;
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--text);
  border-radius: 20px;
  padding: 16px 18px;
  text-align: left;
  cursor: pointer;
  transition: transform 120ms ease, border-color 120ms ease, background 120ms ease;
}

.startup-action:hover,
.startup-link-button:hover {
  transform: translateY(-1px);
  border-color: var(--button-border-hover);
  background: var(--button-bg-hover);
}

.startup-action:disabled {
  opacity: 0.48;
  cursor: not-allowed;
  transform: none;
}

.startup-action.primary {
  border-color: var(--button-active-border);
  background:
    radial-gradient(circle at 92% 18%, color-mix(in srgb, var(--accent-warm) 16%, transparent) 0%, transparent 30%),
    var(--button-bg-active);
}

.startup-action span {
  display: block;
  font-size: 24px;
  line-height: 1.05;
  color: var(--text);
}

.startup-action small {
  display: block;
  margin-top: 8px;
  color: var(--button-muted-text);
  font-size: 13px;
  line-height: 1.45;
}

.startup-link-button {
  padding: 12px 16px;
  text-align: center;
  font-size: 13px;
}

.startup-storage-state {
  min-height: 18px;
  margin: -4px 2px 0;
  color: var(--text-dim);
  font-size: 12px;
}

.startup-storage-state.is-ready {
  color: color-mix(in srgb, var(--accent) 58%, #bff3cf 42%);
}

.startup-panel-projects {
  display: grid;
  gap: 12px;
}

.startup-project-list {
  display: grid;
  gap: 10px;
}

.startup-project-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
  align-items: center;
  border: 1px solid var(--card-border);
  border-radius: 18px;
  padding: 14px 16px;
  background: var(--card-bg);
}

.startup-project-card.is-active {
  border-color: var(--button-active-border);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 18%, transparent);
}

.startup-project-main {
  min-width: 0;
}

.startup-project-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.startup-project-name {
  font-size: 18px;
  color: var(--text);
  line-height: 1.2;
  word-break: break-word;
}

.startup-project-badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  color: var(--badge-text);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.startup-project-time {
  margin-top: 6px;
  color: var(--text-dim);
  font-size: 12px;
}

.startup-project-actions {
  display: flex;
  gap: 8px;
}

.startup-project-open,
.startup-project-delete {
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--text);
  border-radius: 999px;
  padding: 10px 14px;
  cursor: pointer;
}

.startup-project-delete {
  border-color: color-mix(in srgb, var(--danger) 72%, var(--line) 28%);
  color: color-mix(in srgb, var(--danger) 28%, white 72%);
  background: linear-gradient(180deg, color-mix(in srgb, var(--danger) 24%, var(--bg-panel-alt) 76%) 0%, color-mix(in srgb, var(--danger) 16%, var(--bg-panel) 84%) 100%);
}

.startup-project-open:hover,
.startup-project-delete:hover {
  transform: translateY(-1px);
}

.startup-project-empty {
  border: 1px dashed var(--field-border);
  border-radius: 18px;
  padding: 18px;
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.5;
  background: var(--card-bg);
}

.startup-panel-shortcuts {
  overflow: hidden;
}

.startup-shortcuts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}

@keyframes startup-enter {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.985);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes startup-loading-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

.paint-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 96;
  background: rgba(8, 14, 22, 0.72);
  backdrop-filter: blur(3px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 18px;
}

.paint-modal-shell {
  width: min(980px, calc(100vw - 36px));
  height: min(700px, calc(100vh - 36px));
  background: var(--modal-bg);
  border: 1px solid var(--modal-border);
  border-radius: 14px;
  box-shadow: 0 22px 42px rgba(0, 0, 0, 0.52);
  display: grid;
  grid-template-rows: auto auto 1fr;
  overflow: hidden;
}

.paint-modal-shell-wide {
  width: min(1120px, calc(100vw - 36px));
  height: min(780px, calc(100vh - 36px));
  grid-template-rows: auto auto auto 1fr;
}

.paint-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--field-border);
  padding: 12px;
}

.paint-modal-header h2 {
  margin: 0;
  font-size: 17px;
}

.paint-modal-header-note {
  margin-top: 4px;
  font-size: 12px;
  color: var(--text-dim);
}

.paint-modal-header button,
.paint-modal-toolbar button {
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
}

.paint-modal-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--field-border);
  background: var(--card-bg);
}

.paint-modal-toolbar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  align-items: end;
}

.paint-modal-toolbar label {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  font-size: 13px;
  color: var(--text-dim);
}

.paint-modal-toolbar input[type="number"],
.paint-modal-toolbar select {
  width: 100%;
  border: 1px solid var(--field-border);
  background: var(--field-bg);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 8px;
}

.paint-modal-toolbar label.paint-inline-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 42px;
  flex-direction: row;
}

.paint-modal-toolbar label.paint-inline-checkbox input {
  margin: 0;
}

.paint-modal-subbar {
  display: grid;
  grid-template-columns: minmax(220px, 1fr) minmax(260px, 1.3fr);
  gap: 12px;
  padding: 8px 12px 10px;
  border-bottom: 1px solid var(--field-border);
  background: var(--card-bg);
}

.paint-modal-status,
.paint-modal-hint {
  font-size: 12px;
  color: var(--text-dim);
}

.paint-canvas-wrap {
  padding: 12px;
  overflow: auto;
}

.paint-canvas-wrap canvas {
  display: block;
  width: min(100%, 980px);
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--field-border);
  background: #f4f6fa;
  cursor: crosshair;
  box-shadow: inset 0 0 0 1px rgba(19, 35, 52, 0.2);
}

.paint-modal-toolbar button:disabled {
  opacity: 0.45;
  cursor: default;
}

@media (max-width: 900px) {
  .paint-modal-shell-wide {
    width: calc(100vw - 20px);
    height: calc(100vh - 20px);
  }

  .paint-modal-subbar {
    grid-template-columns: 1fr;
  }
}

.surface-modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 97;
  background: rgba(8, 14, 22, 0.72);
  backdrop-filter: blur(3px);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 18px;
}

.surface-modal-shell {
  width: min(1120px, calc(100vw - 36px));
  height: min(780px, calc(100vh - 36px));
  background: var(--modal-bg);
  border: 1px solid var(--modal-border);
  border-radius: 14px;
  box-shadow: 0 22px 42px rgba(0, 0, 0, 0.52);
  display: grid;
  grid-template-rows: auto 1fr;
  overflow: hidden;
}

.surface-modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--field-border);
  padding: 12px;
}

.surface-modal-header h2 {
  margin: 0;
  font-size: 17px;
}

.surface-modal-info {
  margin-top: 4px;
  color: var(--text-dim);
  font-size: 12px;
}

.surface-modal-header button,
.surface-image-toolbar button,
.surface-preset-header button,
.surface-library-header button,
.surface-library-group-head button,
.surface-actions button,
.surface-tabs button {
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
}

.surface-tabs {
  display: flex;
  gap: 6px;
}

.surface-tabs button {
  padding: 6px 12px;
  opacity: 0.75;
}

.surface-tabs button.is-active {
  opacity: 1;
  border-color: var(--button-active-border);
  background: var(--button-bg-active);
}

.surface-modal-body {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 12px;
  padding: 12px;
  overflow: hidden;
}

.surface-modal-left,
.surface-modal-right {
  overflow: auto;
  display: grid;
  gap: 10px;
  align-content: start;
}

.surface-section {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: var(--card-bg);
  padding: 10px;
  display: grid;
  gap: 8px;
}

.surface-section h3 {
  margin: 0;
  font-size: 13px;
  color: var(--text-dim);
  letter-spacing: 0.2px;
}

.surface-section label {
  display: grid;
  gap: 6px;
  font-size: 13px;
}

.surface-section input[type="number"],
.surface-section input[type="color"] {
  border: 1px solid var(--field-border);
  background: var(--field-bg);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 8px;
}

.surface-section label.surface-inline-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
}

.surface-section label.surface-inline-checkbox input {
  margin: 0;
}

.surface-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.surface-image-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.surface-image-toolbar button.is-active {
  border-color: var(--button-active-border);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 18%, transparent);
}

.surface-library-panel[hidden] {
  display: none;
}

.surface-library-panel {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: var(--card-bg);
  padding: 10px;
  display: grid;
  gap: 10px;
}

.surface-library-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.surface-library-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
}

.surface-library-group {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: var(--card-bg);
  padding: 10px;
  display: grid;
  gap: 8px;
}

.surface-library-group-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  color: var(--text-dim);
}

.surface-preset-panel {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: var(--card-bg);
  padding: 10px;
  display: grid;
  gap: 8px;
}

.surface-preset-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  color: var(--text-dim);
}

.surface-preset-path,
.surface-preset-status,
.surface-library-path,
.surface-library-status,
.surface-library-note {
  font-size: 12px;
  color: var(--text-dim);
}

.surface-preset-status.is-loading,
.surface-library-status.is-loading {
  color: var(--text);
}

.surface-preset-grid,
.surface-library-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 8px;
}

.curve-designer-backdrop {
  position: fixed;
  inset: 0;
  z-index: 98;
  display: none;
  pointer-events: none;
}

.curve-designer-shell {
  position: absolute;
  top: 84px;
  right: 18px;
  width: min(460px, calc(100vw - 24px));
  max-height: calc(100vh - 102px);
  display: grid;
  grid-template-rows: auto 1fr auto;
  border: 1px solid var(--modal-border);
  border-radius: 16px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--bg-panel-alt) 97%, #071018 3%) 0%, color-mix(in srgb, var(--bg-panel) 92%, #071018 8%) 100%);
  box-shadow: 0 22px 46px rgba(0, 0, 0, 0.5);
  overflow: hidden;
  pointer-events: auto;
}

.curve-designer-header,
.curve-designer-footer {
  padding: 12px 14px;
  border-bottom: 1px solid var(--field-border);
}

.curve-designer-footer {
  border-top: 1px solid var(--field-border);
  border-bottom: none;
  display: grid;
  gap: 10px;
}

.curve-designer-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.curve-designer-header h2 {
  margin: 0;
  font-size: 17px;
}

.curve-designer-subtitle,
.curve-designer-hint,
.curve-designer-current,
.curve-designer-surface-card div {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.4;
}

.curve-designer-header button,
.curve-designer-inline-actions button,
.curve-designer-surface-card button,
.curve-designer-footer button {
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
}

.curve-designer-footer .primary {
  border-color: var(--button-active-border);
  background: var(--button-bg-active);
}

.curve-designer-body {
  display: grid;
  gap: 10px;
  padding: 12px 14px;
  overflow: auto;
}

.curve-designer-section {
  display: grid;
  gap: 8px;
  padding: 10px;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: color-mix(in srgb, var(--card-bg) 92%, #081018 8%);
}

.curve-designer-section h3 {
  margin: 0;
  font-size: 13px;
  color: var(--text-dim);
}

.curve-designer-surface-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.curve-designer-surface-card {
  display: grid;
  gap: 6px;
  padding: 10px;
  border-radius: 10px;
  border: 1px solid var(--card-border);
  background: rgba(6, 13, 20, 0.35);
}

.curve-designer-inline-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.curve-designer-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.curve-designer-form-grid label {
  display: grid;
  gap: 6px;
  font-size: 13px;
}

.curve-designer-form-grid input[type="number"] {
  border: 1px solid var(--field-border);
  background: var(--field-bg);
  color: var(--text);
  border-radius: 8px;
  padding: 6px 8px;
}

.curve-designer-checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
}

.curve-designer-checkbox input {
  margin: 0;
}

.curve-designer-section canvas {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  border: 1px solid var(--field-border);
  background: #081018;
  cursor: pointer;
}

@media (max-width: 720px) {
  .curve-designer-shell {
    top: 72px;
    right: 10px;
    left: 10px;
    width: auto;
    max-height: calc(100vh - 86px);
  }

  .curve-designer-surface-grid,
  .curve-designer-form-grid {
    grid-template-columns: 1fr;
  }
}

.surface-preset-card,
.surface-library-card {
  border: 1px solid var(--card-border);
  background: var(--button-bg);
  color: var(--text);
  border-radius: 10px;
  padding: 6px;
  display: grid;
  gap: 6px;
  text-align: left;
  cursor: pointer;
}

.surface-preset-card:hover,
.surface-library-card:hover {
  border-color: var(--button-border-hover);
  background: var(--button-bg-hover);
}

.surface-preset-card img,
.surface-library-card img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 8px;
  background: color-mix(in srgb, var(--bg) 78%, black 22%);
  border: 1px solid color-mix(in srgb, var(--line) 62%, var(--accent) 38%);
}

.surface-preset-card span,
.surface-library-card span {
  font-size: 11px;
  line-height: 1.35;
  color: var(--text);
  word-break: break-word;
}

.surface-preset-card.is-active,
.surface-library-card.is-active {
  border-color: var(--button-active-border);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 18%, transparent);
}

.surface-canvas-wrap {
  overflow: auto;
}

.surface-canvas-wrap canvas {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid var(--field-border);
  background: color-mix(in srgb, var(--bg) 82%, black 18%);
  cursor: crosshair;
}

.surface-preview-wrap canvas {
  aspect-ratio: 14 / 11;
  cursor: default;
}

.surface-preview-wrap canvas.is-disabled {
  opacity: 0.7;
}

.surface-actions {
  display: flex;
  gap: 8px;
}

.surface-actions button.primary {
  border-color: var(--button-active-border);
  background: var(--button-bg-active);
}

.surface-actions button.danger {
  border-color: color-mix(in srgb, var(--danger) 72%, var(--line) 28%);
  color: var(--danger);
}

.surface-hint {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.35;
}

.viewport-context-menu {
  position: fixed;
  z-index: 95;
  width: 192px;
  background: var(--context-surface);
  border: 1px solid var(--context-border);
  border-radius: 10px;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.5);
  padding: 4px;
}

.viewport-context-menu > button,
.ctx-submenu > button,
.ctx-submenu-wrap > button {
  width: 100%;
  text-align: left;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text);
  border-radius: 8px;
  padding: 6px 8px;
  cursor: pointer;
  font-size: 13px;
  line-height: 1.3;
  white-space: nowrap;
}

.viewport-context-menu button:hover {
  background: var(--menu-hover-bg);
  border-color: var(--menu-hover-border);
}

.viewport-context-menu button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.ctx-separator {
  height: 1px;
  background: var(--context-separator);
  margin: 4px 2px;
}

.ctx-submenu-wrap {
  position: relative;
}

.ctx-submenu {
  position: absolute;
  left: calc(100% + 4px);
  top: 0;
  display: none;
  width: 140px;
  background: var(--context-surface);
  border: 1px solid var(--context-border);
  border-radius: 10px;
  padding: 4px;
}

.ctx-submenu-wrap:hover .ctx-submenu {
  display: block;
}

.viewcube-widget {
  position: absolute;
  left: 10px;
  top: 10px;
  z-index: 36;
  width: 96px;
  height: 96px;
  border-radius: 10px;
  background: var(--context-surface);
  border: 1px solid var(--context-border);
  overflow: hidden;
  backdrop-filter: blur(3px);
}

.viewcube-widget canvas {
  width: 96px;
  height: 96px;
  display: block;
}

.metric-widget {
  position: absolute;
  right: 10px;
  top: 10px;
  z-index: 36;
  width: 170px;
  padding: 10px;
  border-radius: 10px;
  background: var(--context-surface);
  border: 1px solid var(--context-border);
  overflow: hidden;
  backdrop-filter: blur(3px);
}

.metric-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.metric-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4px;
  margin-bottom: 8px;
}

.metric-row label {
  font-size: 12px;
  color: var(--text-dim);
}

.metric-row select {
  width: 100%;
  padding: 6px 8px;
  border-radius: 8px;
  border: 1px solid var(--field-border);
  background: var(--field-bg);
  color: var(--text);
}

.measure-overlay {
  position: absolute;
  inset: 0;
  z-index: 37;
  pointer-events: none;
}

.measure-line {
  position: absolute;
  height: 2px;
  background: rgba(255, 255, 255, 0.85);
  transform-origin: 0 50%;
}

.measure-line::before,
.measure-line::after {
  content: "";
  position: absolute;
  top: 50%;
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  transform: translateY(-50%);
}

.measure-line::before {
  left: -1px;
  border-right: 10px solid rgba(255, 255, 255, 0.9);
}

.measure-line::after {
  right: -1px;
  border-left: 10px solid rgba(255, 255, 255, 0.9);
}

.measure-label {
  position: absolute;
  transform: translate(-50%, -50%);
  padding: 8px 10px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.92);
  color: #10131a;
  border: 1px solid rgba(12, 18, 26, 0.14);
  box-shadow: 0 10px 18px rgba(0, 0, 0, 0.25);
  font-size: 13px;
  line-height: 1.2;
  white-space: pre;
}

.viewcube-hotspot {
  position: absolute;
  border: 1px solid var(--button-border);
  background: var(--button-bg);
  color: var(--text);
  border-radius: 999px;
  font-size: 9px;
  min-width: 20px;
  height: 20px;
  line-height: 18px;
  text-align: center;
  padding: 0 4px;
  cursor: pointer;
}

.viewcube-hotspot.hs-n {
  top: 2px;
  left: 38px;
}
.viewcube-hotspot.hs-ne {
  top: 8px;
  right: 0;
}
.viewcube-hotspot.hs-e {
  top: 38px;
  right: 0;
}
.viewcube-hotspot.hs-se {
  bottom: 8px;
  right: 0;
}
.viewcube-hotspot.hs-s {
  bottom: 2px;
  left: 38px;
}
.viewcube-hotspot.hs-sw {
  bottom: 8px;
  left: 0;
}
.viewcube-hotspot.hs-w {
  top: 38px;
  left: 0;
}
.viewcube-hotspot.hs-nw {
  top: 8px;
  left: 0;
}

.freeform-backdrop {
  position: fixed;
  inset: 0;
  z-index: 70;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  background: rgba(4, 8, 14, 0.72);
  backdrop-filter: blur(10px);
}

.freeform-shell {
  width: min(1400px, 100%);
  height: min(860px, calc(100vh - 3rem));
  display: grid;
  grid-template-rows: auto 1fr;
  background:
    radial-gradient(circle at top left, rgba(79, 161, 255, 0.16), transparent 34%),
    linear-gradient(160deg, #0b131b, #111c28 56%, #0b141d);
  border: 1px solid rgba(140, 180, 214, 0.16);
  border-radius: 1.25rem;
  overflow: hidden;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.38);
}

.freeform-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 1.3rem;
  border-bottom: 1px solid rgba(140, 180, 214, 0.12);
}

.freeform-header h2 {
  margin: 0;
}

.freeform-subtitle {
  margin-top: 0.25rem;
  color: rgba(213, 228, 242, 0.72);
  font-size: 0.93rem;
}

.freeform-header-actions {
  display: flex;
  gap: 0.7rem;
}

.freeform-body {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
}

.freeform-stage {
  position: relative;
  min-height: 0;
  background:
    radial-gradient(circle at 20% 0%, rgba(65, 116, 153, 0.2), transparent 28%),
    linear-gradient(180deg, rgba(7, 12, 18, 0.92), rgba(10, 17, 25, 0.98));
}

.freeform-viewport {
  position: absolute;
  inset: 0;
}

.freeform-viewport canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.freeform-stage-hud {
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 1rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid rgba(140, 180, 214, 0.14);
  border-radius: 0.9rem;
  background: rgba(7, 13, 20, 0.74);
  color: rgba(215, 231, 245, 0.8);
  font-size: 0.9rem;
  pointer-events: none;
}

.freeform-context-menu {
  position: fixed;
  z-index: 71;
  display: grid;
  gap: 0.3rem;
  min-width: 190px;
  padding: 0.4rem;
  background: rgba(8, 14, 20, 0.95);
  border: 1px solid rgba(140, 180, 214, 0.18);
  border-radius: 0.8rem;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.42);
}

.freeform-context-menu button {
  width: 100%;
  justify-content: flex-start;
  text-align: left;
}

.freeform-sidebar {
  overflow: auto;
  padding: 1rem;
  border-left: 1px solid rgba(140, 180, 214, 0.12);
  background: linear-gradient(180deg, rgba(10, 17, 24, 0.94), rgba(13, 20, 29, 0.98));
}

.freeform-panel {
  padding: 0.9rem;
  margin-bottom: 0.9rem;
  border: 1px solid rgba(140, 180, 214, 0.12);
  border-radius: 0.95rem;
  background: rgba(8, 14, 20, 0.62);
}

.freeform-panel h3 {
  margin: 0 0 0.8rem;
}

.freeform-panel p {
  margin: 0.45rem 0;
  color: rgba(213, 228, 242, 0.8);
  font-size: 0.92rem;
}

.freeform-panel label {
  display: grid;
  gap: 0.3rem;
  margin-bottom: 0.7rem;
  color: rgba(226, 236, 244, 0.88);
}

.freeform-panel label span {
  color: rgba(140, 204, 255, 0.92);
  font-size: 0.9rem;
}

.freeform-kv {
  display: grid;
  gap: 0.22rem;
  margin-bottom: 0.75rem;
}

.freeform-kv span {
  color: rgba(213, 228, 242, 0.66);
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.freeform-kv strong {
  color: #f4fbff;
  font-size: 0.96rem;
  word-break: break-word;
}

.freeform-segmented,
.freeform-inline-actions {
  display: flex;
  gap: 0.55rem;
  margin-bottom: 0.75rem;
}

.freeform-segmented button,
.freeform-inline-actions button {
  flex: 1;
}

.freeform-segmented .is-active {
  border-color: rgba(118, 208, 255, 0.9);
  box-shadow: inset 0 0 0 1px rgba(118, 208, 255, 0.3);
}

@media (max-width: 1100px) {
  .app-shell {
    grid-template-columns: 240px 1fr;
    grid-template-rows: 90px 1fr 260px 28px;
    grid-template-areas:
      "header header"
      "viewport viewport"
      "outliner inspector"
      "status status";
  }

  .panel-left,
  .panel-right {
    border-top: 1px solid var(--line);
  }

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

  .freeform-backdrop {
    padding: 0.75rem;
  }

  .freeform-shell {
    height: calc(100vh - 1.5rem);
  }

  .freeform-body {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(320px, 1fr) auto;
  }

  .freeform-sidebar {
    border-left: 0;
    border-top: 1px solid rgba(140, 180, 214, 0.12);
  }
}

@media (max-width: 720px) {
  .startup-shell {
    padding: 18px;
    border-radius: 22px;
  }

  .startup-headerbar {
    align-items: stretch;
    flex-direction: column;
  }

  .startup-header-meta {
    display: none;
  }

  .startup-action span {
    font-size: 20px;
  }

  .startup-project-card {
    grid-template-columns: 1fr;
  }

  .startup-project-actions {
    width: 100%;
  }

  .startup-project-open,
  .startup-project-delete {
    flex: 1 1 0;
  }

  .startup-shortcuts,
  .help-modal-body {
    grid-template-columns: 1fr;
  }
}