:root {
  --ink: #203539;
  --muted: #7a8888;
  --accent: #d77741;
  --accent-dark: #b75a2b;
  --line: #e4e8e6;
  --cream: #f7f8f5;
  --navy: #20383c;
  --green: #719889;
  font-family: Inter, 'Segoe UI', Arial, sans-serif;
  color: var(--ink);
  font-size: 13px;
  background: #f4f6f4;
}
* {
  box-sizing: border-box;
}
body {
  margin: 0;
}
button,
input,
select {
  font: inherit;
}
button {
  cursor: pointer;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  border-radius: 7px;
  padding: 8px 12px;
  transition:
    background 0.15s,
    border-color 0.15s;
}
button:hover {
  background: #edf2ef;
  border-color: #bdccc6;
}
button:disabled {
  opacity: 0.35;
  cursor: default;
}
button:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}
.topbar {
  height: 83px;
  background: var(--navy);
  color: #fff;
  display: flex;
  align-items: center;
  padding: 0 25px;
  gap: 36px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  color: #f6f5ec;
  text-decoration: none;
  font-size: 22px;
  font-weight: 650;
  letter-spacing: -0.6px;
  min-width: 194px;
}
.brand-mark {
  font-size: 45px;
  color: #e7a779;
  font-weight: 400;
  line-height: 1;
}
.brand small {
  display: block;
  font-size: 8px;
  letter-spacing: 2px;
  margin-top: 5px;
  color: #adbfbc;
  font-weight: 500;
}
.document-title {
  padding-left: 25px;
  border-left: 1px solid #486064;
  flex: 1;
}
.document-title input {
  color: #f0f5ef;
  border: 0;
  background: transparent;
  font-size: 14px;
  width: 100%;
  max-width: 280px;
  padding: 2px 0;
}
.document-title span {
  display: block;
  font-size: 10px;
  color: #a6b9b6;
  margin-top: 5px;
}
.file-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.file-actions button {
  background: transparent;
  color: #e5eeea;
  border-color: transparent;
  font-size: 12px;
  padding: 9px 12px;
}
.file-actions button:hover {
  background: #354e51;
}
.file-actions #save-btn {
  border: 1px solid #627774;
}
.primary,
.file-actions .primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}
.primary:hover,
.file-actions .primary:hover {
  background: var(--accent-dark);
}
.primary span {
  margin-left: 15px;
}
.file-actions .help-button {
  border: 1px solid #617571;
  border-radius: 50%;
  padding: 0;
  width: 25px;
  height: 25px;
  margin-left: 7px;
}
.workspace {
  display: grid;
  grid-template-columns: 184px minmax(400px, 1fr) 270px;
  height: calc(100dvh - 83px);
  min-height: 600px;
}
.toolbox {
  background: var(--cream);
  border-right: 1px solid var(--line);
  padding: 25px 13px 15px;
  display: flex;
  flex-direction: column;
  overflow: auto;
}
.rail-heading {
  font-size: 9px;
  font-weight: 650;
  letter-spacing: 1.3px;
  color: #8a9792;
  display: flex;
  justify-content: space-between;
  padding: 0 8px 18px;
}
.rail-heading span {
  font-weight: 400;
  font-size: 8px;
  letter-spacing: 0;
}
.tools {
  display: grid;
  gap: 4px;
}
.tool {
  display: flex;
  align-items: center;
  text-align: left;
  gap: 11px;
  border: 1px solid transparent;
  background: transparent;
  padding: 10px 10px;
  font-size: 12px;
  position: relative;
  touch-action: none;
}
.tool svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}
.tool .tool-shortcut {
  margin-left: auto;
  color: #8e9995;
  font-size: 9px;
}
.tool.active {
  background: #e8eeea;
  border-color: #d2ddd6;
  font-weight: 600;
}
.tool.active:before {
  content: '';
  position: absolute;
  left: -14px;
  top: 9px;
  bottom: 9px;
  width: 3px;
  background: var(--green);
  border-radius: 3px;
}
.tool.active svg {
  color: #497867;
}
.tool-divider {
  height: 1px;
  background: var(--line);
  margin: 9px 7px;
}
.rail-note {
  margin: 25px 8px 20px;
  padding-top: 18px;
  border-top: 1px solid #dce4dd;
  line-height: 1.6;
  color: #72837b;
  font-size: 11px;
}
.note-symbol {
  display: block;
  color: var(--accent);
  font-size: 27px;
  line-height: 1;
}
.rail-note strong {
  display: block;
  color: #496258;
  font-size: 11px;
  margin-top: 6px;
}
.rail-note p {
  margin: 6px 0;
}
.rail-note button {
  border: 0;
  background: none;
  color: #4d7968;
  padding: 6px 0;
  font-size: 10px;
  text-align: left;
}
.rail-note button span {
  margin-left: 6px;
}
.templates button {
  display: block;
  padding: 3px 0;
}
.rail-footer {
  margin-top: auto;
  padding: 10px 8px 0;
  color: #6e8378;
  font-size: 10px;
}
.status-dot {
  display: inline-block;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #799f88;
  margin-right: 6px;
}
.rail-footer small {
  display: block;
  font-size: 9px;
  color: #97a29b;
  margin: 4px 0 0 12px;
}
.drawing-area {
  display: flex;
  flex-direction: column;
  min-width: 0;
  overflow: hidden;
}
.canvas-toolbar {
  height: 54px;
  flex-shrink: 0;
  background: #fff;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  gap: 8px;
}
.history-controls,
.view-controls {
  display: flex;
  align-items: center;
  gap: 5px;
}
.history-controls button {
  font-size: 22px;
  line-height: 20px;
  padding: 4px 7px;
  border: 0;
  background: none;
}
.view-controls button {
  border: 0;
  font-size: 11px;
  padding: 6px;
}
.divider {
  height: 20px;
  width: 1px;
  background: var(--line);
  margin: 0 6px;
}
.switch-label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  white-space: nowrap;
}
input[type='checkbox'] {
  accent-color: #678875;
  width: 13px;
  height: 13px;
}
.canvas-container {
  position: relative;
  flex: 1;
  min-height: 0;
  overflow: hidden;
  background: #edf1ef;
}
.canvas-badge {
  position: absolute;
  left: 22px;
  top: 18px;
  z-index: 1;
  background: #f7f9f6e8;
  padding: 8px 11px;
  border: 1px solid #dde5df;
  border-radius: 5px;
  font-size: 8px;
  letter-spacing: 1.3px;
  pointer-events: none;
  color: #648075;
}
.canvas-container svg#canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  user-select: none;
  outline: none;
}
.paper {
  filter: drop-shadow(0 2px 6px #1e393c15);
}
.hit-line {
  stroke: transparent;
  fill: none;
  pointer-events: stroke;
  cursor: move;
  vector-effect: non-scaling-stroke;
}
@media (pointer: coarse) {
  .hit-line {
    stroke-width: 32;
  }
}
.ray-anim {
  pointer-events: none;
  animation: ray-flow 0.3s linear infinite;
}
@keyframes ray-flow {
  from {
    stroke-dashoffset: var(--o);
  }
  to {
    stroke-dashoffset: calc(var(--o) - 60px);
  }
}
.diagram-object {
  cursor: move;
}
.selected-outline {
  fill: none;
  stroke: #538f83;
  stroke-width: 1;
  stroke-dasharray: 5 4;
  pointer-events: none;
}
.handle {
  fill: white;
  stroke: #538f83;
  stroke-width: 1.8;
  cursor: crosshair;
}
.rotate-handle {
  fill: #538f83;
  stroke: white;
  stroke-width: 2;
  cursor: grab;
}
.junction {
  fill: #f2b477;
  stroke: #fff;
  stroke-width: 2;
}
.canvas-bottom {
  position: absolute;
  bottom: 20px;
  left: 22px;
  right: 22px;
  display: flex;
  justify-content: space-between;
  pointer-events: none;
}
.scale-pill,
.zoom-pill {
  background: #fffffff0;
  border: 1px solid #dce4df;
  box-shadow: 0 3px 8px #173b2910;
  display: flex;
  align-items: center;
  border-radius: 7px;
  color: #596e66;
  pointer-events: auto;
}
.scale-pill {
  font-size: 10px;
  padding: 10px 12px;
  gap: 9px;
}
.scale-icon {
  font-size: 18px;
  color: #879f93;
}
.zoom-pill button {
  border: 0;
  background: none;
  padding: 8px 10px;
  font-size: 16px;
}
.zoom-pill #zoom-reset {
  font-size: 10px;
  width: 51px;
  padding: 8px 2px;
}
.canvas-status {
  height: 33px;
  background: #fff;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 0 16px;
  color: #87968e;
  font-size: 9px;
  flex-shrink: 0;
}
.canvas-status #tool-hint {
  flex: 1;
  color: #698477;
}
.canvas-status #coordinates {
  min-width: 72px;
  text-align: right;
  font-variant-numeric: tabular-nums;
}
.inspector {
  background: #fff;
  border-left: 1px solid var(--line);
  overflow: auto;
  padding: 0 20px 20px;
}
.inspector-tabs {
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
  font-weight: 600;
  font-size: 12px;
}
.tiny-tag {
  font-size: 8px;
  letter-spacing: 1.3px;
  font-weight: 500;
  background: #eff3ef;
  padding: 4px 7px;
  color: #719082;
  border-radius: 4px;
}
.inspector h3 {
  font-size: 11px;
  font-weight: 650;
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.inspector p {
  font-size: 10px;
  color: #8b9890;
  line-height: 1.7;
  margin: 8px 0 16px;
}
.grid-settings {
  border-top: 1px solid var(--line);
  padding: 21px 0 16px;
}
.grid-settings h3 span {
  font-weight: 400;
  color: #90a197;
}
.form-row {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}
.form-row > * {
  flex: 1;
  min-width: 0;
}
.form-row .unit-field {
  flex: 0.65;
}
label.field,
.form-row label {
  display: block;
  color: #7a8b82;
  font-size: 10px;
  line-height: 1.5;
}
input:not([type='checkbox']):not([type='color']),
textarea,
select {
  height: 32px;
  border: 1px solid #dde5df;
  background: #fcfdfb;
  border-radius: 5px;
  padding: 6px 8px;
  color: #3d554a;
  min-width: 0;
}
label.field input,
label.field textarea,
label.field select,
.form-row input,
.form-row select {
  display: block;
  width: 100%;
  margin-top: 5px;
}
label.field textarea {
  height: auto;
  min-height: 88px;
  resize: vertical;
  font: inherit;
}
input[type='color'] {
  width: 100%;
  height: 32px;
  padding: 3px;
  border: 1px solid #dde5df;
  background: #fff;
  border-radius: 5px;
  margin-top: 5px;
}
label.field {
  margin-bottom: 11px;
}
.check-row {
  display: flex;
  gap: 7px;
  align-items: center;
  font-size: 10px;
  color: #647c6c;
  margin: 10px 0;
}
.layers-section {
  border-top: 1px solid var(--line);
  padding-top: 20px;
}
.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.section-heading > span {
  font-size: 9px;
  color: #85998b;
}
.layer {
  width: 100%;
  border: 0;
  background: none;
  display: flex;
  align-items: center;
  gap: 8px;
  text-align: left;
  padding: 9px 7px;
  border-radius: 4px;
  font-size: 10px;
  margin: 3px 0;
}
.layer.selected {
  background: #edf3ee;
}
.layer svg {
  width: 17px;
  height: 17px;
  color: #7c9384;
}
.layer-name {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.layer small {
  font-size: 8px;
  color: #96a498;
}
.layer-actions {
  display: flex;
  gap: 5px;
  margin-top: 8px;
}
.layer-actions button {
  flex: 1;
  font-size: 9px;
  padding: 7px 4px;
}
.empty-properties {
  padding: 27px 0 20px;
}
.empty-icon {
  width: 46px;
  height: 46px;
  border: 1px solid #dfe8df;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: #f5f8f3;
  color: #93a78f;
  margin-bottom: 15px;
}
.empty-icon svg {
  width: 24px;
  height: 24px;
}
.empty-properties h3 {
  font-size: 14px;
  font-weight: 500;
}
.empty-properties p {
  margin-bottom: 10px;
}
.selected-properties {
  padding: 18px 0;
}
.selected-properties h3 {
  margin-bottom: 16px;
  font-size: 13px;
}
.property-section {
  margin-top: 15px;
  border-top: 1px solid #edf0eb;
  padding-top: 13px;
}
.property-section h4 {
  margin: 0 0 11px;
  font-size: 10px;
  color: #567261;
}
.property-section details {
  margin: 9px 0;
}
.property-section summary {
  font-size: 10px;
  cursor: pointer;
  color: #607e69;
  margin-bottom: 9px;
}
.small-actions {
  display: flex;
  gap: 6px;
  margin: 10px 0;
}
.small-actions button {
  font-size: 9px;
  flex: 1;
  padding: 7px 4px;
}
.properties-note {
  font-size: 9px !important;
  color: #829485 !important;
  margin: 10px 0 0 !important;
}
.inspector .field-hint {
  font-size: 8px;
  color: #92a194;
}
dialog {
  border: 1px solid #d9e1d9;
  border-radius: 14px;
  box-shadow: 0 20px 100px #152b3850;
  padding: 30px;
  color: var(--ink);
  max-width: min(580px, 92vw);
  width: 580px;
}
dialog::backdrop {
  background: #1d333963;
  backdrop-filter: blur(3px);
}
dialog p {
  font-size: 12px;
  line-height: 1.7;
  color: #7a8982;
  margin: 12px 0 22px;
}
dialog h2 {
  font-size: 23px;
  font-weight: 550;
  letter-spacing: -0.6px;
  margin: 8px 0;
}
.eyebrow {
  font-size: 8px;
  letter-spacing: 1.7px;
  color: #77917e;
  font-weight: 600;
}
.dialog-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}
.icon-close {
  border: 0;
  background: none;
  font-size: 24px;
  padding: 0 4px;
  color: #84978c;
}
.export-formats {
  display: flex;
  gap: 10px;
  margin: 25px 0 18px;
}
.export-formats button {
  flex: 1;
  text-align: left;
  padding: 19px 12px;
  background: #f9fbf7;
}
.export-formats strong {
  display: block;
  font-size: 22px;
  color: #375b48;
  margin-bottom: 12px;
  font-weight: 500;
}
.export-formats span {
  font-size: 10px;
  display: block;
}
.export-formats small {
  font-size: 8px;
  color: #93a18f;
  display: block;
  margin-top: 7px;
}
.print-action {
  width: 100%;
  background: #fff;
}
.dialog-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  margin-top: 20px;
}
#export-status {
  font-size: 11px;
  color: #668873;
  margin-top: 10px;
}
.help-copy p {
  margin: 12px 0;
  font-size: 11px;
}
.help-copy b {
  color: #436454;
}
.shortcut-list {
  display: grid;
  grid-template-columns: 1fr auto;
  font-size: 10px;
  line-height: 2.5;
  border-top: 1px solid #ddd;
  padding-top: 12px;
}
.shortcut-list dd {
  font-family: monospace;
  color: #718b78;
}
#toast {
  position: fixed;
  bottom: 48px;
  left: 50%;
  transform: translateX(-50%) translateY(15px);
  padding: 12px 20px;
  background: #233b34;
  color: white;
  border-radius: 8px;
  box-shadow: 0 4px 20px #0002;
  opacity: 0;
  pointer-events: none;
  transition: 0.2s;
  z-index: 20;
  font-size: 12px;
}
#toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
@media (min-width: 1600px) {
  .workspace {
    grid-template-columns: 210px minmax(400px, 1fr) 300px;
  }
  .toolbox {
    padding-left: 20px;
    padding-right: 20px;
  }
  .tool {
    padding: 12px;
  }
  .inspector {
    padding-left: 24px;
    padding-right: 24px;
  }
}
@media (max-width: 1100px) {
  .workspace {
    grid-template-columns: 65px minmax(350px, 1fr) 242px;
  }
  .toolbox {
    padding: 20px 8px;
  }
  .rail-heading,
  .tool span,
  .rail-note,
  .rail-footer {
    display: none;
  }
  .tool {
    padding: 10px 12px;
  }
  .tool.active:before {
    left: -9px;
  }
  .topbar {
    gap: 18px;
    padding: 0 16px;
  }
  .brand {
    min-width: 165px;
  }
  .document-title {
    padding-left: 16px;
  }
  .file-actions {
    gap: 2px;
  }
  .file-actions button {
    padding: 8px;
  }
  .view-controls {
    gap: 2px;
  }
  .canvas-toolbar {
    padding: 0 7px;
  }
  .switch-label {
    font-size: 9px;
  }
  .view-controls .divider {
    display: none;
  }
}
@media (max-width: 780px) {
  .workspace {
    grid-template-columns: 54px minmax(270px, 1fr);
    height: calc(100dvh - 109px);
    min-height: 450px;
  }
  .inspector {
    grid-column: 1/-1;
    max-height: 450px;
    border-top: 1px solid var(--line);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }
  .inspector-tabs {
    grid-column: 1/-1;
  }
  .layers-section {
    grid-column: 1/-1;
  }
  .topbar {
    height: 109px;
    flex-wrap: wrap;
    gap: 5px 20px;
    padding: 11px 13px;
  }
  .brand {
    font-size: 19px;
    min-width: 145px;
  }
  .brand-mark {
    font-size: 35px;
  }
  .brand small {
    font-size: 6px;
  }
  .document-title {
    flex: 1;
  }
  .document-title input {
    font-size: 12px;
  }
  .file-actions {
    width: 100%;
    justify-content: flex-end;
  }
  .toolbox {
    padding: 12px 3px;
  }
  .tool {
    padding: 10px 11px;
  }
  .canvas-toolbar {
    height: 72px;
    flex-wrap: wrap;
    justify-content: center;
    padding: 5px;
  }
  .canvas-status {
    font-size: 8px;
    padding: 0 8px;
    gap: 5px;
    height: 39px;
  }
  .canvas-status #coordinates {
    display: none;
  }
  .canvas-bottom {
    left: 10px;
    right: 10px;
    bottom: 12px;
  }
  .canvas-badge {
    left: 10px;
    top: 10px;
  }
  .scale-pill {
    font-size: 8px;
    padding: 8px;
  }
  .export-formats {
    flex-direction: column;
  }
  .export-formats button {
    padding: 12px;
  }
  .export-formats strong {
    margin: 0 0 5px;
    font-size: 17px;
  }
  .tool svg {
    width: 19px;
    height: 19px;
  }
  .brand {
    pointer-events: none;
  }
}
.topbar .document-title input {
  background: transparent;
  border-color: transparent;
  color: #f0f5ef;
  padding-left: 0;
  font-size: 14px;
}
.topbar .document-title input:hover,
.topbar .document-title input:focus {
  background: #30494c;
  border-color: #526b67;
  padding-left: 8px;
}
.topbar .document-title input:focus {
  outline: 1px solid #8aa394;
  outline-offset: 1px;
}
@media print {
  body > * {
    display: none !important;
  }
  body > svg.print-sheet {
    display: block !important;
    width: 100%;
    height: auto;
  }
  body > .print-header {
    display: block !important;
    font-family: Georgia, 'Times New Roman', serif;
    color: #263b3e;
    margin: 0 0 6mm;
  }
  body > .print-header h1 {
    font-size: 16pt;
    font-weight: normal;
    margin: 0 0 3mm;
  }
  body > .print-header p {
    display: flex;
    gap: 8mm;
    margin: 0;
    font-size: 11pt;
  }
  body > .print-header span {
    flex: 1;
  }
  body > .print-header span::after {
    content: '';
    display: inline-block;
    width: calc(100% - 14mm);
    margin-left: 3mm;
    border-bottom: 0.4pt solid #263b3e;
  }
  @page {
    size: landscape;
    margin: 10mm;
  }
}

.attached-label {
  cursor: move;
  pointer-events: bounding-box;
}
.attached-label:hover text {
  fill: #b75a2b;
}
.inspector [hidden] {
  display: none !important;
}
.inspector:not(.editing) .grid-settings {
  border-top: 0;
}
#properties-home {
  border: 0;
  background: transparent;
  padding: 6px 0;
  font-size: 10px;
  color: #567c69;
}
.inspector-tabs {
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 2;
}
.history-controls #clear-all-btn {
  font-size: 10px;
  line-height: 20px;
  padding: 4px 8px;
  color: #92644e;
  white-space: nowrap;
}
.inspector.editing .inspector-tabs > span:not(.tiny-tag) {
  margin-left: 8px;
  margin-right: auto;
}
.inspector.editing > .layer-actions {
  margin: 0 0 20px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}
@media (max-width: 780px) {
  .inspector.editing #properties,
  .inspector.editing > .layer-actions,
  .inspector:not(.editing) .grid-settings {
    grid-column: 1/-1;
  }
}
@media (prefers-reduced-motion: reduce) {
  .ray-anim {
    display: none;
  }
  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }
}