:root {
  color-scheme: light;
  --ink: #1e211d;
  --muted: #6b7067;
  --paper: #f4f1e8;
  --panel: #fffcf2;
  --line: #d9d1c0;
  --accent: #e6512f;
  --accent-2: #1f8f7a;
  --field: #ece5d7;
  --shadow: 0 18px 55px rgba(54, 45, 31, 0.16);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background:
    linear-gradient(90deg, rgba(31, 143, 122, 0.08), transparent 36%),
    repeating-linear-gradient(0deg, rgba(30, 33, 29, 0.035) 0 1px, transparent 1px 28px),
    var(--paper);
  color: var(--ink);
  font-family: "Segoe UI", "Malgun Gothic", sans-serif;
  overflow: hidden;
}

button,
input,
select {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

.shell {
  display: grid;
  grid-template-columns: minmax(330px, 390px) minmax(0, 1fr);
  height: 100%;
}

.panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 24px 20px;
  border-right: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel), white 12%);
  overflow: auto;
}

.version-badge {
  margin-top: auto;
  padding-top: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 56px;
}

.mark {
  width: 42px;
  height: 42px;
  background:
    linear-gradient(45deg, transparent 0 42%, var(--accent) 42% 58%, transparent 58%),
    linear-gradient(135deg, #151515 0 45%, #f6f1e6 45% 56%, #f59b31 56%);
  border: 1px solid #1e211d;
  transform: rotate(-8deg);
}

h1,
h2,
p {
  margin: 0;
}

.brand h1 {
  font-size: 25px;
  line-height: 1;
  letter-spacing: 0;
}

.brand p,
#modelKicker,
.notes span {
  color: var(--muted);
  font-size: 13px;
}

.dropzone {
  display: grid;
  gap: 7px;
  padding: 16px;
  border: 1px dashed color-mix(in srgb, var(--accent), black 18%);
  background: color-mix(in srgb, var(--accent), white 91%);
}

.dropzone input {
  display: none;
}

.dropzone span {
  color: var(--accent);
  font-weight: 700;
}

.dropzone strong {
  font-size: 14px;
  overflow-wrap: anywhere;
}

.actions {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  margin-top: 10px;
}

.primary,
.ghost,
.download,
.view-tools button {
  min-height: 38px;
  padding: 0 13px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--panel);
  transition: transform 140ms ease, background 140ms ease;
}

.primary:hover,
.download:hover,
.view-tools button:hover {
  transform: translateY(-1px);
  background: #30362f;
}

.ghost {
  background: transparent;
  color: var(--ink);
}

.status-strip {
  min-height: 34px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  border-left: 4px solid var(--accent-2);
  background: color-mix(in srgb, var(--accent-2), white 88%);
  color: #0e5145;
  font-size: 13px;
  font-weight: 700;
}

.status-strip.error {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent), white 88%);
  color: #7a1f10;
}

.metrics {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  border: 1px solid var(--line);
}

.metric {
  padding: 12px;
  min-width: 0;
}

.metric:nth-child(odd) {
  border-right: 1px solid var(--line);
}

.metric:nth-child(n + 3) {
  border-top: 1px solid var(--line);
}

.metric strong {
  display: block;
  font-size: 21px;
}

.metric span {
  color: var(--muted);
  font-size: 12px;
}

.controls,
.settings {
  display: grid;
  gap: 10px;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

h2 {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0;
}

.text-button {
  background: transparent;
  color: var(--accent-2);
  font-weight: 700;
}

.color-list,
.component-list {
  display: grid;
  gap: 7px;
}

.component-list {
  max-height: 275px;
  overflow: auto;
  padding-right: 2px;
}

.color-row,
.component-row {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  align-items: center;
  min-height: 42px;
  padding: 9px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.34);
}

.color-row.readonly {
  cursor: default;
}

.color-row.active,
.component-row.active {
  border-color: var(--ink);
  background: #fff8df;
}

.swatch {
  width: 22px;
  height: 22px;
  border: 1px solid rgba(0, 0, 0, 0.25);
}

.row-main {
  min-width: 0;
}

.row-main strong {
  display: block;
  font-size: 13px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.row-main span,
.row-count {
  color: var(--muted);
  font-size: 12px;
}

.empty-selection {
  min-height: 68px;
  display: flex;
  align-items: center;
  padding: 12px;
  border: 1px dashed var(--line);
  color: var(--muted);
  font-size: 13px;
}

.settings label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.setting-field {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}

.settings input,
.settings select,
.toggle-button {
  width: 100%;
  min-height: 38px;
  border: 1px solid var(--line);
  background: var(--field);
  color: var(--ink);
  padding: 0 10px;
}

.toggle-button {
  background: color-mix(in srgb, var(--accent-2), white 84%);
  border-color: color-mix(in srgb, var(--accent-2), black 10%);
  color: #0d4e43;
  font-weight: 800;
  text-align: left;
}

.toggle-button[aria-pressed="true"] {
  background: color-mix(in srgb, var(--accent), white 84%);
  border-color: color-mix(in srgb, var(--accent), black 14%);
  color: #7a1f10;
}

.cut-toolbox {
  padding-top: 2px;
}

.cut-tabs,
.axis-buttons,
.sketch-actions {
  display: grid;
  gap: 7px;
}

.cut-tabs {
  grid-template-columns: repeat(2, 1fr);
}

.axis-buttons {
  grid-template-columns: repeat(3, 1fr);
}

.cut-tab,
.axis-buttons button {
  min-height: 34px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.42);
  color: var(--ink);
  font-weight: 800;
}

.cut-tab.active,
.axis-buttons button.active {
  border-color: var(--ink);
  background: color-mix(in srgb, var(--accent-2), white 82%);
  color: #0d4e43;
}

.cut-panel {
  display: none;
  gap: 10px;
}

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

#cutOffsetValue {
  float: right;
  color: var(--accent);
  font-weight: 800;
}

.sketch-pad {
  width: 100%;
  aspect-ratio: 1.47 / 1;
  border: 1px solid var(--ink);
  background:
    linear-gradient(90deg, rgba(30, 33, 29, 0.05) 1px, transparent 1px),
    linear-gradient(0deg, rgba(30, 33, 29, 0.05) 1px, transparent 1px),
    #fffdf5;
  background-size: 24px 24px;
  cursor: crosshair;
}

.sketch-actions {
  grid-template-columns: auto auto 1fr;
}

.readout {
  display: grid;
  gap: 4px;
  padding: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.34);
}

.readout strong {
  font-size: 13px;
}

.readout span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.45;
}

.download-pair {
  display: grid;
  gap: 8px;
}

.download {
  width: 100%;
  margin-top: 4px;
  background: var(--accent);
  border-color: #a9351d;
}

.download.secondary {
  background: var(--ink);
  border-color: var(--ink);
}

.download:disabled,
.text-button:disabled {
  opacity: 0.42;
  cursor: not-allowed;
}

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

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  padding: 22px 28px 16px;
  border-bottom: 1px solid var(--line);
}

#modelTitle {
  margin-top: 3px;
  font-size: clamp(24px, 3vw, 40px);
  letter-spacing: 0;
  overflow-wrap: anywhere;
}

.view-tools {
  display: flex;
  gap: 8px;
  align-items: center;
}

.model-tabs {
  flex: 1;
  min-width: 180px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
  padding-top: 4px;
}

.model-tab {
  min-height: 34px;
  padding: 0 12px;
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel), white 8%);
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
  transition: transform 140ms ease, border-color 140ms ease, background 140ms ease;
}

.model-tab:hover {
  transform: translateY(-1px);
  border-color: var(--ink);
}

.model-tab.active {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent), white 86%);
  color: #7a1f10;
}

.view-tools button {
  min-width: 58px;
  background: transparent;
  color: var(--ink);
}

.viewer {
  position: relative;
  min-width: 0;
  min-height: 0;
}

.viewer.can-pick canvas {
  cursor: pointer;
}

.viewer canvas {
  display: block;
}

.hover-badge {
  position: absolute;
  z-index: 3;
  max-width: min(280px, calc(100% - 28px));
  padding: 8px 10px;
  border: 1px solid var(--ink);
  background: color-mix(in srgb, var(--panel), white 8%);
  color: var(--ink);
  box-shadow: var(--shadow);
  font-size: 12px;
  font-weight: 700;
  pointer-events: none;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 120ms ease, transform 120ms ease;
}

.hover-badge.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.split-action {
  position: absolute;
  right: 22px;
  bottom: 22px;
  z-index: 4;
  min-width: 118px;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid #a9351d;
  background: var(--accent);
  color: var(--panel);
  font-weight: 800;
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 150ms ease, transform 150ms ease;
}

.split-action.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.split-action:hover {
  transform: translateY(-1px);
  background: #d94627;
}

.notes {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 18px;
  padding: 14px 28px 20px;
  border-top: 1px solid var(--line);
}

.notes div {
  display: grid;
  gap: 3px;
  min-width: 0;
}

.notes strong {
  font-size: 12px;
  text-transform: uppercase;
}

@media (max-width: 900px) {
  body {
    overflow: auto;
  }

  .shell {
    grid-template-columns: 1fr;
    height: auto;
    min-height: 100%;
  }

  .panel {
    border-right: 0;
    border-bottom: 1px solid var(--line);
    max-height: none;
  }

  .stage {
    min-height: 72vh;
  }

  .topbar,
  .notes {
    padding-inline: 18px;
  }

  .topbar {
    flex-wrap: wrap;
  }

  .model-tabs {
    order: 3;
    flex-basis: 100%;
    justify-content: flex-start;
  }

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

/* Model List Styles */
.model-list-section {
  margin-top: 14px;
}

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

.empty-list {
  padding: 16px;
  border: 1px dashed var(--line);
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}

.model-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.02);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  animation: fadeInSlide 0.26s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.model-index {
  --model-accent: var(--accent-2);
  width: 28px;
  height: 28px;
  flex: 0 0 28px;
  display: grid;
  place-items: center;
  border: 1px solid color-mix(in srgb, var(--model-accent), black 18%);
  background: color-mix(in srgb, var(--model-accent), white 82%);
  color: color-mix(in srgb, var(--model-accent), black 42%);
  font-size: 12px;
  font-weight: 800;
}

@keyframes fadeInSlide {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.model-item:hover {
  transform: translateY(-1.5px);
  border-color: var(--ink);
  box-shadow: 0 6px 16px rgba(54, 45, 31, 0.08);
}

.model-item.active {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent), white 91%);
  box-shadow: inset 3px 0 0 var(--accent);
}

.model-item:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.model-item.base-model {
  border: 1.5px solid var(--ink);
  background: #fffdf5;
}

.model-item.base-model.active {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent-2), white 88%);
}

.model-item.base-model:hover {
  background: #fffaea;
}

.model-item.base-model.active:hover {
  background: color-mix(in srgb, var(--accent-2), white 84%);
}

.model-item-info {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.model-item-info strong {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.model-item-info span {
  font-size: 11px;
  color: var(--muted);
}

.model-item-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.model-item-actions button {
  min-height: 28px;
  padding: 0 10px;
  font-size: 12px;
  font-weight: 700;
  border: 1px solid var(--ink);
  border-radius: 2px;
  transition: all 120ms ease;
}

.btn-download {
  background: var(--ink);
  color: var(--panel);
}

.btn-download:hover {
  background: #363d35;
}

.btn-download:disabled,
.btn-download:disabled:hover {
  cursor: not-allowed;
  transform: none;
  border-color: var(--line);
  background: #c9c2b4;
  color: #777064;
}

.model-item.base-model .btn-download {
  background: var(--accent-2);
  border-color: color-mix(in srgb, var(--accent-2), black 10%);
  color: var(--panel);
}

.model-item.base-model .btn-download:hover {
  background: color-mix(in srgb, var(--accent-2), black 15%);
}

.model-item.base-model .btn-download:disabled,
.model-item.base-model .btn-download:disabled:hover {
  border-color: var(--line);
  background: #c9c2b4;
  color: #777064;
}

.btn-revert {
  background: transparent;
  color: var(--accent);
  border-color: var(--line) !important;
}

.btn-revert:hover {
  background: color-mix(in srgb, var(--accent), white 90%);
  border-color: var(--accent) !important;
}