:root {
  --bg: #efe8dd;
  --panel: rgba(255, 251, 244, 0.92);
  --panel-strong: #fffaf2;
  --ink: #1f2533;
  --muted: #5f6878;
  --accent: #1967d2;
  --accent-strong: #0f4ca3;
  --accent-soft: rgba(25, 103, 210, 0.16);
  --warn: #e56b2f;
  --border: rgba(31, 37, 51, 0.16);
  --divider: rgba(31, 37, 51, 0.08);
  --grid-minor: rgba(31, 37, 51, 0.08);
  --grid-major: rgba(31, 37, 51, 0.18);
  --shadow: 0 18px 48px rgba(40, 46, 63, 0.16);
  --toolbar-bg: rgba(255, 250, 242, 0.88);
  --body-glow-one: rgba(25, 103, 210, 0.12);
  --body-glow-two: rgba(229, 107, 47, 0.12);
  --body-base-from: #f6f0e6;
  --body-base-to: #efe8dd;
  --workspace-overlay-from: rgba(255, 255, 255, 0.7);
  --workspace-overlay-to: rgba(251, 246, 237, 0.9);
  --pill-bg: rgba(255, 251, 244, 0.88);
  --pill-shadow: 0 8px 22px rgba(40, 46, 63, 0.08);
  --stage-bg: #fff;
  --stage-border: rgba(31, 37, 51, 0.15);
  --stage-inset: inset 0 1px 0 rgba(255, 255, 255, 0.9);
  --rect-title: rgba(18, 24, 35, 0.88);
  --handle-ring: rgba(31, 37, 51, 0.18);
  --tooltip-bg: rgba(18, 24, 35, 0.92);
  --tooltip-ink: #fff;
  --tooltip-shadow: 0 12px 24px rgba(18, 24, 35, 0.28);
  --switch-track: rgba(31, 37, 51, 0.16);
  --switch-track-active: #1967d2;
  --switch-thumb: #fff;
  --lock-active: #ffaa00;
}

html[data-theme="dark"] {
  --bg: #141311;
  --panel: rgba(28, 27, 24, 0.92);
  --panel-strong: #211f1b;
  --ink: #f3efe7;
  --muted: #b7afa1;
  --accent: #8a9aa4;
  --accent-strong: #a8b6be;
  --accent-soft: rgba(138, 154, 164, 0.22);
  --warn: #ff9a5c;
  --border: rgba(243, 239, 231, 0.14);
  --divider: rgba(243, 239, 231, 0.08);
  --grid-minor: rgba(243, 239, 231, 0.07);
  --grid-major: rgba(243, 239, 231, 0.16);
  --shadow: 0 24px 56px rgba(0, 0, 0, 0.42);
  --toolbar-bg: rgba(16, 15, 13, 0.9);
  --body-glow-one: rgba(196, 171, 136, 0.08);
  --body-glow-two: rgba(128, 112, 92, 0.12);
  --body-base-from: #1a1815;
  --body-base-to: #0d0c0a;
  --workspace-overlay-from: rgba(33, 31, 27, 0.88);
  --workspace-overlay-to: rgba(17, 15, 13, 0.96);
  --pill-bg: rgba(28, 27, 24, 0.92);
  --pill-shadow: 0 12px 24px rgba(0, 0, 0, 0.24);
  --stage-bg: #171512;
  --stage-border: rgba(243, 239, 231, 0.12);
  --stage-inset: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  --rect-title: rgba(243, 239, 231, 0.92);
  --handle-ring: rgba(243, 239, 231, 0.2);
  --tooltip-bg: rgba(243, 239, 231, 0.94);
  --tooltip-ink: #171512;
  --tooltip-shadow: 0 12px 24px rgba(0, 0, 0, 0.28);
  --switch-track: rgba(243, 239, 231, 0.2);
  --switch-track-active: #8a9aa4;
  --switch-thumb: #fff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(circle at top left, var(--body-glow-one), transparent 28%),
    radial-gradient(circle at bottom right, var(--body-glow-two), transparent 26%),
    linear-gradient(180deg, var(--body-base-from) 0%, var(--body-base-to) 100%);
  color: var(--ink);
  font-family: "Open Sans", "Segoe UI", "Helvetica Neue", sans-serif;
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.toolbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--toolbar-bg);
  backdrop-filter: blur(14px);
}

.toolbar__row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 18px 24px;
  align-items: center;
}

.toolbar__row--top {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(180px, auto);
  column-gap: 5px;
  align-items: center;
}

.toolbar__row--bottom {
  align-items: end;
}

.toolbar__slot {
  display: flex;
  min-width: 0;
}

.toolbar__slot--logo {
  align-items: center;
  justify-content: flex-end;
  flex: 0 0 auto;
}

.toolbar__slot--controls {
  flex: 1 1 720px;
  flex-wrap: wrap;
  align-items: end;
  gap: 12px;
  justify-content: flex-end;
}

.toolbar__slot--title {
  justify-content: flex-start;
  align-items: center;
  min-width: 0;
}

.toolbar__logo {
  width: 192px;
  height: auto;
  display: block;
  object-fit: contain;
  flex: 0 0 auto;
  padding-top: 10px;
}

.brandline {
  display: inline-flex;
  align-items: baseline;
  gap: 0.02em;
  font-family: "Montserrat", "Open Sans", sans-serif;
  color: var(--ink);
  white-space: nowrap;
}

.brandline__cap {
  font-size: clamp(2.15rem, 3.8vw, 2.9rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 0.9;
}

.brandline__text {
  font-size: clamp(1.45rem, 2.6vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 0.95;
}

.toolbar__group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: end;
}

.toolbar__group--utility {
  flex: 0 1 auto;
}

.toolbar__button-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
  align-items: center;
  margin-left: auto;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 110px;
  color: var(--muted);
  font-size: 0.85rem;
}

.field span {
  white-space: nowrap;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.field input,
.field select,
.toolbar button {
  min-height: 40px;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0 12px;
  background: var(--panel-strong);
  color: var(--ink);
}

.field--checkbox {
  display: inline-grid;
  grid-auto-flow: column;
  justify-content: start;
  align-items: center;
  align-content: end;
  gap: 8px;
  min-width: auto;
  min-height: 64px;
  padding: 0 6px 0 0;
}

.field--checkbox input {
  width: 18px;
  height: 18px;
  margin: 0;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 40px;
  color: var(--ink);
  cursor: pointer;
  user-select: none;
}

.theme-toggle__text {
  font-size: 0.9rem;
  font-weight: 600;
  white-space: nowrap;
}

.theme-toggle__switch {
  position: relative;
  display: inline-flex;
  width: 50px;
  height: 28px;
}

.theme-toggle__switch input {
  position: absolute;
  inset: 0;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}

.theme-toggle__slider {
  position: absolute;
  inset: 0;
  border-radius: 999px;
  background: var(--switch-track);
  box-shadow: inset 0 0 0 1px var(--border);
  transition: background-color 140ms ease;
}

.theme-toggle__slider::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: var(--switch-thumb);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  transition: transform 140ms ease;
}

.theme-toggle__switch input:checked + .theme-toggle__slider {
  background: var(--switch-track-active);
}

.theme-toggle__switch input:checked + .theme-toggle__slider::after {
  transform: translateX(22px);
}

.theme-toggle__switch input:focus-visible + .theme-toggle__slider {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.toolbar button {
  cursor: pointer;
  font-weight: 600;
  transition: transform 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
}

.toolbar button:disabled {
  cursor: not-allowed;
  opacity: 0.58;
  box-shadow: none;
}

.toolbar button.is-active,
.toolbar button.is-active:hover,
.toolbar button.is-active:focus-visible {
  background: var(--lock-active);
  border-color: var(--lock-active);
  color: #1f2533;
  box-shadow: 0 10px 18px rgba(255, 170, 0, 0.18);
}

.toolbar button:hover,
.toolbar button:focus-visible {
  transform: translateY(-1px);
  box-shadow: 0 10px 18px rgba(31, 37, 51, 0.12);
  border-color: rgba(25, 103, 210, 0.3);
}

.statusbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  padding: 12px 18px;
  border-bottom: 1px solid var(--divider);
}

.statusbar__metrics {
  display: flex;
  flex: 0 1 auto;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.statusbar__hint {
  flex: 1 1 320px;
  text-align: right;
  color: var(--muted);
  font-size: 0.95rem;
}

.status-pill,
.distance-box {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 0 12px;
  border: 1px solid var(--border);
  background: var(--pill-bg);
  box-shadow: var(--pill-shadow);
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.88rem;
}

.status-pill {
  border-radius: 10px;
}

.distance-box {
  border-radius: 14px;
}

.status-pill--rect {
  color: var(--ink);
  border-color: var(--rect-info-border, var(--border));
  box-shadow:
    inset 0 0 0 1px var(--rect-info-border, transparent),
    var(--pill-shadow);
}

#distanceLabel {
  color: var(--warn);
  font-weight: 700;
}

.workspace {
  flex: 1;
  min-height: 0;
  padding: 18px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 18px;
  align-items: start;
}

.workspace__canvas {
  min-width: 0;
  min-height: 0;
  display: flex;
}

.workspace-scroll {
  flex: 1 1 auto;
  height: 100%;
  min-height: 0;
  overflow: auto;
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, var(--workspace-overlay-from), var(--workspace-overlay-to)),
    var(--panel);
  box-shadow: var(--shadow);
  padding: 18px;
}

.workspace-legend {
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, var(--workspace-overlay-from), var(--workspace-overlay-to)),
    var(--panel);
  box-shadow: var(--shadow);
}

.workspace-legend__header {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.workspace-legend__eyebrow {
  margin: 0;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.workspace-legend__title {
  margin: 0;
  color: var(--ink);
  font-family: "Montserrat", "Open Sans", sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
}

.workspace-legend__group {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 14px;
  border-top: 1px solid var(--divider);
}

.workspace-legend__group:first-of-type {
  padding-top: 0;
  border-top: 0;
}

.workspace-legend__item {
  display: grid;
  grid-template-columns: minmax(106px, 132px) minmax(0, 1fr);
  gap: 10px 12px;
  align-items: start;
}

.workspace-legend__key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 0 8px;
  border: 1px solid var(--border);
  background: var(--pill-bg);
  box-shadow: var(--pill-shadow);
  color: var(--ink);
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.66rem;
  font-weight: 700;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
}

.workspace-legend__text {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.45;
}

#stageViewport {
  position: relative;
  width: 1280px;
  height: 720px;
}

#stage {
  position: absolute;
  inset: 0 auto auto 0;
  width: 1280px;
  height: 720px;
  border: 1px solid var(--stage-border);
  background-color: var(--stage-bg);
  background-image:
    linear-gradient(to right, var(--grid-major) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-major) 1px, transparent 1px),
    linear-gradient(to right, var(--grid-minor) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid-minor) 1px, transparent 1px);
  background-size: 50px 50px, 50px 50px, 10px 10px, 10px 10px;
  box-shadow: var(--stage-inset);
  transform-origin: top left;
  user-select: none;
  overflow: visible;
}

#rectLayer {
  position: absolute;
  inset: 0;
}

.rect {
  position: absolute;
  border: 2px solid var(--rect-border, var(--accent));
  background: var(--rect-fill, var(--accent-soft));
  cursor: move;
  box-shadow:
    0 0 0 1px var(--rect-glow-soft, transparent),
    0 0 18px var(--rect-glow, transparent),
    0 8px 18px rgba(31, 37, 51, 0.12);
  transition: box-shadow 120ms ease, border-color 120ms ease;
}

.rect:hover {
  box-shadow:
    0 0 0 1px var(--rect-glow-soft, transparent),
    0 0 22px var(--rect-glow-strong, transparent),
    0 10px 20px rgba(31, 37, 51, 0.16);
}

.rect.is-locked {
  cursor: default;
}

.rect.is-selected {
  border-color: var(--warn);
  box-shadow:
    0 0 0 2px rgba(229, 107, 47, 0.18),
    0 12px 28px rgba(31, 37, 51, 0.18);
}

.rect__title {
  position: absolute;
  top: 6px;
  left: 8px;
  max-width: calc(100% - 16px);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--rect-title);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  pointer-events: none;
}

.rect__title-text {
  overflow: hidden;
  text-overflow: ellipsis;
}

.rect__lock-icon {
  position: relative;
  flex: 0 0 auto;
  width: 0.56rem;
  height: 0.4rem;
  margin-left: 0.08rem;
  border: 1.5px solid currentColor;
  border-radius: 0.12rem;
  box-sizing: border-box;
}

.rect__lock-icon::before {
  content: "";
  position: absolute;
  left: 50%;
  bottom: calc(100% - 0.04rem);
  width: 0.34rem;
  height: 0.3rem;
  border: 1.5px solid currentColor;
  border-bottom: 0;
  border-radius: 0.3rem 0.3rem 0 0;
  box-sizing: border-box;
  transform: translateX(-50%);
}

.handle {
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  border: 2px solid var(--switch-thumb);
  background: var(--warn);
  box-shadow: 0 0 0 1px var(--handle-ring);
}

.handle--nw {
  top: -5px;
  left: -5px;
  cursor: nwse-resize;
}

.handle--n {
  top: -5px;
  left: calc(50% - 5px);
  cursor: ns-resize;
}

.handle--ne {
  top: -5px;
  right: -5px;
  cursor: nesw-resize;
}

.handle--e {
  top: calc(50% - 5px);
  right: -5px;
  cursor: ew-resize;
}

.handle--se {
  right: -5px;
  bottom: -5px;
  cursor: nwse-resize;
}

.handle--s {
  bottom: -5px;
  left: calc(50% - 5px);
  cursor: ns-resize;
}

.handle--sw {
  left: -5px;
  bottom: -5px;
  cursor: nesw-resize;
}

.handle--w {
  top: calc(50% - 5px);
  left: -5px;
  cursor: ew-resize;
}

.draw-preview {
  position: absolute;
  border: 2px dashed rgba(25, 103, 210, 0.9);
  background: rgba(25, 103, 210, 0.12);
  pointer-events: none;
}

.draw-preview--marquee {
  border-color: rgba(255, 170, 0, 0.95);
  background: rgba(255, 170, 0, 0.14);
}

.tooltip {
  position: fixed;
  z-index: 40;
  padding: 8px 10px;
  border-radius: 10px;
  background: var(--tooltip-bg);
  color: var(--tooltip-ink);
  box-shadow: var(--tooltip-shadow);
  font-family: "IBM Plex Mono", "SFMono-Regular", Consolas, monospace;
  font-size: 0.8rem;
  pointer-events: none;
  white-space: nowrap;
}

.color-menu {
  position: fixed;
  z-index: 45;
  min-width: 280px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--panel-strong);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.22);
}

.color-menu__title {
  margin: 0 0 10px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.color-menu__rename-row {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.color-menu__field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 8px;
  margin-bottom: 12px;
}

.color-menu__field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.color-menu__field-label {
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.color-menu__input {
  flex: 1 1 auto;
  min-width: 0;
  min-height: 40px;
  padding: 0 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--input-bg);
  color: var(--ink);
  font: inherit;
  font-size: 0.92rem;
}

.color-menu__input--number {
  width: 100%;
}

.color-menu__input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--focus-ring);
}

.duplicate-menu .color-menu__input {
  margin-bottom: 12px;
}

.color-menu__subtitle {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.color-menu__grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 12px;
}

.color-menu__button {
  width: 100%;
  aspect-ratio: 1;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--swatch-color, var(--accent));
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.12),
    0 0 16px var(--swatch-glow, transparent);
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
}

.color-menu__button:hover,
.color-menu__button:focus-visible {
  transform: translateY(-1px);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.18),
    0 0 20px var(--swatch-glow-strong, transparent);
  border-color: var(--ink);
}

.color-menu__button.is-active {
  border-color: var(--ink);
  box-shadow:
    0 0 0 2px var(--border),
    inset 0 0 0 1px rgba(255, 255, 255, 0.18),
    0 0 22px var(--swatch-glow-strong, transparent);
}

.color-menu.is-locked {
  opacity: 0.9;
}

.color-menu.is-locked .color-menu__input:disabled,
.color-menu.is-locked .color-menu__button:disabled,
.color-menu.is-locked .duplicate-menu__button:disabled {
  cursor: not-allowed;
  opacity: 0.6;
}

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

.duplicate-menu__button {
  min-height: 40px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--pill-bg);
  color: var(--ink);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
}

.duplicate-menu__button:hover,
.duplicate-menu__button:focus-visible {
  transform: translateY(-1px);
  border-color: var(--accent);
  box-shadow: 0 10px 18px rgba(31, 37, 51, 0.12);
}

.color-menu__lock-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 36px;
  color: var(--ink);
  font-size: 0.9rem;
  font-weight: 600;
}

.color-menu__lock-toggle input {
  width: 18px;
  height: 18px;
  margin: 0;
}

.color-menu__sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.is-hidden {
  display: none;
}

@media (max-width: 900px) {
  .toolbar {
    gap: 14px;
  }

  .toolbar__row--top,
  .toolbar__row--bottom {
    gap: 16px;
  }

  .toolbar__row--top {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  .toolbar__slot--controls {
    justify-content: flex-start;
    flex-basis: 100%;
  }

  .toolbar__logo {
    width: 154px;
  }

  .brandline__cap {
    font-size: 1.75rem;
  }

  .brandline__text {
    font-size: 1.3rem;
  }

  .toolbar__button-group {
    margin-left: 0;
    justify-content: flex-start;
  }

  .theme-toggle {
    min-height: 36px;
  }

  .workspace {
    grid-template-columns: 1fr;
    padding: 12px;
  }

  .workspace-scroll {
    padding: 12px;
  }

  .workspace-legend {
    padding: 16px;
  }

  .toolbar,
  .statusbar {
    padding-left: 12px;
    padding-right: 12px;
  }

  .statusbar__hint {
    text-align: left;
  }
}

@media (max-width: 1710px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .workspace-legend {
    order: 2;
  }
}

@media (max-width: 620px) {
  .toolbar__row--top {
    column-gap: 12px;
  }

  .toolbar__logo {
    width: 122px;
  }

  .brandline {
    flex-wrap: nowrap;
    gap: 0.01em;
  }

  .brandline__cap {
    font-size: 1.35rem;
  }

  .brandline__text {
    font-size: 1rem;
  }

  .toolbar__group--utility,
  .toolbar__button-group {
    width: 100%;
  }

  .toolbar__group--utility,
  .toolbar__button-group {
    justify-content: flex-start;
  }

  .field {
    min-width: 100%;
  }

  .field--checkbox {
    min-width: 100%;
    min-height: auto;
  }

  .theme-toggle {
    justify-content: space-between;
  }

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

  .workspace-legend__key {
    justify-content: flex-start;
  }
}