:root {
  color-scheme: dark;
  --bg: #101316;
  --panel: #171c20;
  --panel-2: #20272d;
  --line: #34404a;
  --text: #eef3f5;
  --muted: #9fafb9;
  --aqua: #35d0c2;
  --pink: #f16aa2;
  --amber: #f2b84b;
  --blue: #75a7ff;
  --green: #73d17c;
  --red: #ff6b6b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px 1fr 380px;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  transition: grid-template-columns 0.2s ease;
}

body.inspector-collapsed {
  grid-template-columns: 280px 1fr 28px;
}

.update-nudge {
  position: fixed;
  top: 50%;
  right: 18px;
  transform: translate(140%, -50%);
  z-index: 2000;
  width: min(360px, calc(100vw - 32px));
  display: grid;
  gap: 14px;
  padding: 18px 18px 16px;
  border: 1px solid rgba(53, 208, 194, 0.45);
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(13, 17, 20, 0.98), rgba(20, 34, 38, 0.98)),
    linear-gradient(90deg, rgba(53, 208, 194, 0.15), rgba(117, 167, 255, 0.1));
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  transition: transform 0.35s ease, opacity 0.35s ease;
  opacity: 0;
}

.update-nudge.is-visible {
  transform: translate(0, -50%);
  opacity: 1;
}

.update-nudge::before {
  content: "";
  position: absolute;
  inset: 12px auto 12px -8px;
  width: 4px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--aqua), var(--pink));
}

.update-nudge__content {
  display: grid;
  gap: 6px;
}

.update-nudge__content strong {
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--aqua);
}

.update-nudge__content span {
  font-size: 13px;
  line-height: 1.45;
  color: var(--text);
}

.update-nudge__actions {
  display: flex;
  gap: 8px;
}

.primary-button {
  background: linear-gradient(135deg, rgba(53, 208, 194, 0.3), rgba(53, 208, 194, 0.15));
  border-color: rgba(53, 208, 194, 0.55);
}

.secondary-button {
  background: rgba(255, 255, 255, 0.04);
}

button,
.file-button {
  border: 1px solid var(--line);
  background: var(--panel-2);
  color: var(--text);
  min-height: 38px;
  padding: 0 12px;
  border-radius: 6px;
  font: inherit;
  cursor: pointer;
  transition: all 0.2s;
}

button:hover,
.file-button:hover {
  border-color: var(--aqua);
  background: var(--line);
}

input[type="number"],
input[type="text"],
textarea {
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 6px;
  padding: 8px 10px;
  font: inherit;
  width: 100%;
}

.sidebar, .inspector {
  background: linear-gradient(180deg, #12171b 0%, #0d1114 100%);
  border-right: 1px solid var(--line);
  overflow-y: auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px;
  margin-bottom: 8px;
  position: relative;
}

.refresh-btn {
  position: absolute;
  right: 12px;
  top: 18px;
  width: 28px;
  height: 28px;
  min-height: 28px;
  padding: 0;
  border-radius: 50%;
  background: transparent;
  border: 1px solid var(--line);
  color: var(--muted);
  font-size: 16px;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all 0.2s;
}

.refresh-btn:hover {
  border-color: var(--aqua);
  color: var(--aqua);
  transform: rotate(180deg);
}

.brand-logo {
  width: 42px;
  height: 42px;
  object-fit: contain;
  filter: drop-shadow(0 0 8px rgba(53, 208, 194, 0.4));
}

.brand-text span {
  color: var(--aqua);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.brand-text strong {
  display: block;
  font-size: 18px;
  letter-spacing: -0.02em;
}

/* Accordion */
.accordion-group {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--line);
}

.panel.accordion {
  background: #12171b;
}

.accordion-header {
  padding: 12px 18px;
  background: var(--panel);
  cursor: pointer;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.accordion-header:hover {
  color: var(--text);
}

.accordion-header::after {
  content: "▼";
  font-size: 10px;
  transition: transform 0.2s;
}

.panel.accordion.open .accordion-header::after {
  transform: rotate(180deg);
}

.accordion-content {
  display: none;
  padding: 16px;
  background: rgba(0,0,0,0.15);
}

.panel.accordion.open .accordion-content {
  display: block;
}

.landmark-help {
  margin: 0 0 12px;
  font-size: 12px;
  line-height: 1.45;
  color: var(--muted);
}

.landmark-group {
  display: grid;
  gap: 8px;
  margin-bottom: 14px;
}

.landmark-group__head {
  display: grid;
  gap: 2px;
}

.landmark-group__head strong {
  font-size: 12px;
  color: var(--text);
  letter-spacing: 0.02em;
}

.landmark-group__head span {
  font-size: 11px;
  color: var(--muted);
  line-height: 1.35;
}

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

.landmark {
  width: 100%;
  display: grid;
  grid-template-columns: 14px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.03);
  font-size: 12px;
  text-align: left;
}

.landmark .dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
}

.landmark .count {
  min-width: 18px;
  text-align: right;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.landmark.active {
  border-color: rgba(53, 208, 194, 0.65);
  background: linear-gradient(135deg, rgba(53, 208, 194, 0.12), rgba(255,255,255,0.03));
}

/* Workspace */
.workspace {
  min-width: 0;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 14px;
  padding: 18px;
}

/* Workspace Premium Overhaul */
.workspace {
  min-width: 0;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: 14px;
  padding: 18px;
  overflow: hidden;
}

.topbar {
  background: var(--bg);
  padding: 12px 20px;
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 12px;
  border-radius: 12px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.header-main {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
}

/* Mode Selector condensed */
.mode-control {
  display: flex;
  align-items: center;
  gap: 12px;
}

.mode-selector {
  background: var(--panel-2);
  padding: 4px;
  border-radius: 10px;
  display: flex;
  border: 1px solid var(--line);
}

.mode-btn {
  padding: 6px 14px;
  font-size: 11px;
  font-weight: 800;
  border-radius: 7px;
  border: none;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s;
  min-height: 28px;
}

.mode-btn.active {
  background: var(--line);
  color: var(--text);
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

.mode-label {
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
}

.info-icon {
  display: inline-grid;
  place-items: center;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--line);
  color: var(--muted);
  font-style: normal;
  font-size: 10px;
  cursor: help;
  margin-left: 4px;
}

/* Action Bar condensed */
.action-bar {
  background: var(--panel-2);
  padding: 6px 12px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  gap: 16px;
  border: 1px solid var(--line);
  box-shadow: none;
}

.action-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.group-label {
  font-size: 8px;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 800;
  letter-spacing: 0.05em;
}

.layer-toggles {
  display: flex;
  gap: 6px;
}

.toggle-btn {
  font-size: 10px;
  width: 24px;
  height: 24px;
  display: grid;
  place-items: center;
  border-radius: 6px;
  background: rgba(255,255,255,0.03);
  cursor: pointer;
  border: 1px solid var(--line);
  transition: all 0.2s;
}

.toggle-btn input { display: none; }
.toggle-btn:has(input:checked) {
  background: rgba(53, 208, 194, 0.15);
  color: var(--aqua);
  border-color: rgba(53, 208, 194, 0.4);
}

.v-line {
  width: 1px;
  height: 28px;
  background: var(--line);
  align-self: center;
  margin-bottom: 0;
}

.command-btns {
  display: flex;
  gap: 4px;
  align-items: center;
}

.command-btns button {
  min-height: 30px;
  font-size: 11px;
  padding: 0 10px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* Scrolling Lists Premium */
.cases-list, .landmark-list, .sample-list {
  max-height: 260px;
  overflow-y: auto;
  padding-right: 6px;
  margin-bottom: 8px;
}

.cases-list::-webkit-scrollbar, .landmark-list::-webkit-scrollbar, .sample-list::-webkit-scrollbar {
  width: 4px;
}

.cases-list::-webkit-scrollbar-thumb, .landmark-list::-webkit-scrollbar-thumb, .sample-list::-webkit-scrollbar-thumb {
  background: var(--line);
  border-radius: 10px;
}

.sample-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  margin: 10px 0;
}

.sample-list button {
  text-align: left;
  padding: 8px 12px;
  font-size: 11px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,0.02);
  color: var(--muted);
  transition: all 0.2s;
}

.sample-list button:hover {
  background: rgba(255,255,255,0.05);
  color: var(--text);
  border-color: var(--muted);
}

.premium-btn {
  background: linear-gradient(135deg, var(--aqua), var(--blue));
  color: #101316 !important;
  font-weight: 800;
  border: none !important;
  box-shadow: 0 4px 12px rgba(53, 208, 194, 0.3);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.premium-btn:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.status {
  color: var(--aqua);
  font-size: 11px;
  font-weight: 700;
  margin: 0;
}

.v-line {
  width: 1px;
  height: 36px;
  background: var(--line);
  align-self: flex-end;
  margin-bottom: 4px;
}

.command-btns {
  display: flex;
  gap: 6px;
  align-items: center;
}

.command-btns button {
  min-height: 32px;
  padding: 0 10px;
  font-size: 12px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 6px;
}

.ai-button {
  background: linear-gradient(135deg, rgba(53, 208, 194, 0.25), rgba(117, 167, 255, 0.15));
  border-color: rgba(53, 208, 194, 0.4);
  color: var(--aqua) !important;
}

.ai-button:hover {
  background: linear-gradient(135deg, rgba(53, 208, 194, 0.4), rgba(117, 167, 255, 0.25));
  border-color: var(--aqua);
}

.success-btn {
  background: rgba(115, 209, 124, 0.15);
  border-color: rgba(115, 209, 124, 0.4);
  color: var(--green) !important;
}

.success-btn:hover {
  background: rgba(115, 209, 124, 0.25);
  border-color: var(--green);
}

.danger-ghost {
  background: transparent;
  color: var(--red);
  border-color: transparent;
}

.danger-ghost:hover {
  background: rgba(255, 107, 107, 0.1);
  border-color: var(--red);
}

.command-btns button:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  filter: grayscale(1);
}

.status {
  color: var(--aqua);
  font-size: 13px;
  font-weight: 600;
}

/* Canvas Area */
.canvas-shell {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0b0e11;
  display: grid;
  place-items: center;
  overflow: hidden;
  min-height: 560px;
  padding: 14px;
}

.editor-container {
  position: relative;
  width: 100%;
  height: min(72vh, 760px);
  min-height: 520px;
  max-width: 100%;
}

canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

svg#meshLayer {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 999;
}

.mesh-contour {
  fill: rgba(53, 208, 194, 0.1);
  stroke: var(--aqua);
  stroke-width: 3;
  filter: drop-shadow(0 0 4px rgba(53, 208, 194, 0.4));
}

.mesh-path {
  fill: none;
  stroke: rgba(255,255,255,0.3);
  stroke-width: 1.5;
  stroke-dasharray: 4 4;
}

/* Inspector Dividido */
.inspector {
  border-left: 1px solid var(--line);
}

.inspector-split {
  height: 100vh;
  display: flex;
  flex-direction: column;
}

.inspector-data, .inspector-ai {
  flex: 1;
  overflow-y: auto;
  padding: 16px 20px;
}

.inspector-data {
  border-bottom: 1px solid var(--line);
  background: rgba(255,255,255,0.02);
}

.inspector-ai {
  background: rgba(53, 208, 194, 0.02);
}

.inspector-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  color: var(--muted);
}

.inspector-section h3 {
  font-size: 11px;
  text-transform: uppercase;
  color: var(--aqua);
  margin-bottom: 12px;
}

.real-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.field {
  display: grid;
  gap: 4px;
  font-size: 11px;
  color: var(--muted);
}

.span-2 { grid-column: span 2; }

/* Metrics & Analysis */
.analysis-cards { display: grid; gap: 8px; }
.analysis-card {
  background: var(--panel);
  border-left: 4px solid var(--aqua);
  padding: 10px;
  border-radius: 4px;
  font-size: 12px;
}

.measurements {
  display: grid;
  gap: 8px;
}

.measurement-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,0.03);
  font-size: 12px;
}

.measurement-row strong {
  color: var(--text);
}

.measurement-row span {
  color: var(--aqua);
  text-align: right;
}

.audit {
  display: grid;
  gap: 8px;
  font-size: 12px;
}

.audit-card {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255,255,255,0.03);
}

.audit-card strong {
  display: block;
  margin-bottom: 4px;
  color: var(--text);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.session-gallery {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: linear-gradient(180deg, rgba(18, 23, 27, 0.95), rgba(13, 17, 20, 0.92));
}

.gallery-header {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  color: var(--muted);
}

.gallery-header strong {
  color: var(--text);
  font-size: 13px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.session-gallery__track {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 4px;
}

.session-thumb {
  width: 96px;
  min-width: 96px;
  height: 96px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #0b0e11;
  cursor: pointer;
}

.session-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.session-thumb.active {
  border-color: var(--aqua);
  box-shadow: 0 0 0 1px rgba(53, 208, 194, 0.4);
}

.metrics div {
  background: var(--panel);
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--line);
}

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

.case-folder {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255,255,255,0.03);
}

.case-folder.open {
  border-color: rgba(53, 208, 194, 0.45);
}

.case-header {
  font-size: 13px;
  font-weight: 700;
  color: var(--text);
  cursor: pointer;
}

.case-folder .case-thumb {
  grid-column: 2;
  grid-row: 1 / span 2;
}

.case-meta {
  font-size: 11px;
  color: var(--muted);
  margin-top: 4px;
}

.case-thumb {
  width: 54px;
  height: 54px;
  min-width: 54px;
  min-height: 54px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: #0b0e11;
  object-fit: cover;
  display: block;
}

.case-session-list {
  grid-column: 1 / -1;
  display: none;
  gap: 6px;
  margin-top: 8px;
}

.case-folder.open .case-session-list {
  display: grid;
}

.case-session-row {
  display: flex;
  align-items: center;
  gap: 6px;
  width: 100%;
}

.case-session-item {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(0,0,0,0.15);
  text-align: left;
  min-height: auto;
}

.case-session-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow: hidden;
}

.session-name {
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
  white-space: nowrap;
  text-overflow: ellipsis;
  overflow: hidden;
}

.session-date {
  font-size: 9px;
  color: var(--muted);
}

.delete-btn {
  width: 24px;
  height: 24px;
  min-height: 24px;
  padding: 0;
  display: grid;
  place-items: center;
  border-radius: 6px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  font-size: 18px;
  transition: all 0.2s;
}

.delete-btn:hover {
  background: rgba(255, 107, 107, 0.15);
  color: var(--red);
  border-color: rgba(255, 107, 107, 0.3);
}

.inspector-toggle {
  position: absolute;
  top: 14px; left: -11px;
  z-index: 1000;
  width: 22px; height: 22px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--muted);
  border-radius: 50%;
  cursor: pointer;
}

@media (max-width: 1200px) {
  body { grid-template-columns: 240px 1fr 300px; }
}

@media (max-width: 880px) {
  body {
    grid-template-columns: 1fr;
  }

  .sidebar,
  .inspector {
    display: none;
  }

  .workspace {
    padding: 14px;
  }

  .editor-container {
    width: 100%;
    height: min(72vw, 760px);
  }

  .action-bar,
  .metrics,
  .mode-switcher {
    grid-template-columns: 1fr;
  }

  .update-nudge {
    left: 16px;
    right: 16px;
    width: auto;
  }
}