:root {
  --bg: #05070b;
  --panel: rgba(11, 16, 26, 0.78);
  --panel-strong: rgba(15, 22, 36, 0.92);
  --panel-soft: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.13);
  --border-strong: rgba(255, 255, 255, 0.22);
  --text: #f5f7fb;
  --muted: #aab4c2;
  --faint: #687386;
  --accent: #52d6c9;
  --danger: #fb7185;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.42);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  width: 100vw;
  height: 100vh;
  min-height: 100vh;
  overflow: hidden;
  font-family: "Inter", Arial, sans-serif;
  background:
    radial-gradient(circle at 20% 16%, rgba(82, 214, 201, 0.13), transparent 26rem),
    radial-gradient(circle at 68% 64%, rgba(139, 92, 246, 0.12), transparent 28rem),
    var(--bg);
  color: var(--text);
}

body.focus-mode .app-shell {
  padding: 0;
  gap: 6px;
}

body.focus-mode .topbar {
  min-height: 58px;
  padding: 7px 12px;
}

body.focus-mode .brand-block {
  max-width: max-content;
}

body.focus-mode h1 {
  font-size: clamp(1.5rem, 2vw, 2.1rem);
}

body.focus-mode .topbar-actions {
  gap: 7px;
}

body.focus-mode .control-btn,
body.focus-mode .primary-btn,
body.focus-mode .danger-btn,
body.focus-mode .icon-btn {
  min-height: 30px;
  padding-block: 5px;
}

body.focus-mode .topbar,
body.focus-mode .layer-rail,
body.focus-mode .inspector,
body.focus-mode .field-status,
body.focus-mode .field-stage {
  border-radius: 0;
}

body.focus-mode .inspector {
  gap: 6px;
  padding: 8px;
}

body.focus-mode .panel-section {
  padding: 7px;
}

body.focus-mode .mapping-form,
body.focus-mode .form-grid,
body.focus-mode .mapping-actions,
body.focus-mode .inspector-utility,
body.focus-mode .mapped-panel,
body.focus-mode .facet-dock {
  gap: 6px;
}

body.focus-mode select,
body.focus-mode input {
  min-height: 30px;
  padding-block: 5px;
}

body.focus-mode textarea {
  min-height: 44px;
  max-height: 50px;
}

body.focus-mode .mapping-actions,
body.focus-mode .data-actions {
  gap: 6px;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

.app-shell {
  position: relative;
  z-index: 1;
  height: 100dvh;
  overflow: hidden;
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr) minmax(330px, 430px);
  grid-template-rows: auto minmax(0, 1fr) minmax(48px, 58px);
  gap: 12px;
  padding: 10px 14px;
  pointer-events: none;
}

.topbar,
.layer-rail,
.field-status,
.inspector {
  pointer-events: auto;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.topbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  min-height: 58px;
  padding: 10px 14px;
  background: linear-gradient(135deg, rgba(9, 14, 24, 0.9), rgba(20, 27, 41, 0.72));
  border-radius: 8px;
}

.brand-block {
  max-width: min(760px, 54vw);
  min-width: 0;
}

.source-note,
.status-label,
label span,
.rail-title {
  margin: 0;
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: clamp(1.55rem, 2.4vw, 2.55rem);
  line-height: 1;
}

h2 {
  margin-top: 3px;
  font-size: clamp(1rem, 1.45vw, 1.18rem);
  line-height: 1.12;
}

.topbar-actions {
  display: flex;
  align-items: end;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.select-label,
.nav-control,
.list-tools label,
.mapping-form label {
  display: grid;
  gap: 7px;
}

select,
input,
textarea {
  width: 100%;
  min-height: 34px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 7px 9px;
  outline: none;
}

textarea {
  min-height: 54px;
  max-height: 72px;
  resize: vertical;
  line-height: 1.32;
}

select:focus,
input:focus,
textarea:focus {
  border-color: rgba(82, 214, 201, 0.72);
  box-shadow: 0 0 0 3px rgba(82, 214, 201, 0.12);
}

option {
  color: #111827;
}

.control-btn,
.primary-btn,
.danger-btn,
.icon-btn {
  min-height: 34px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: 7px 11px;
  font-weight: 700;
  transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.control-btn:hover,
.primary-btn:hover,
.danger-btn:hover,
.icon-btn:hover {
  transform: translateY(-1px);
  border-color: var(--border-strong);
  background: rgba(255, 255, 255, 0.13);
}

.control-btn.strong,
.primary-btn {
  border-color: rgba(82, 214, 201, 0.45);
  background: rgba(82, 214, 201, 0.16);
  color: #d9fffb;
}

.nav-control {
  min-width: 0;
}

.segmented-control {
  display: flex;
  align-items: center;
  gap: 3px;
  min-height: 34px;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.07);
}

.segment-btn {
  min-height: 26px;
  border: 0;
  border-radius: 5px;
  background: transparent;
  color: var(--muted);
  padding: 4px 8px;
  font-size: 0.75rem;
  font-weight: 800;
  white-space: nowrap;
  transition: background 160ms ease, color 160ms ease;
}

.segment-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text);
}

.segment-btn.active {
  background: rgba(82, 214, 201, 0.18);
  color: #d9fffb;
}

.danger-btn {
  border-color: rgba(251, 113, 133, 0.38);
  background: rgba(251, 113, 133, 0.12);
  color: #ffd7de;
}

.danger-btn.subtle {
  background: rgba(255, 255, 255, 0.06);
}

.danger-btn.armed {
  border-color: rgba(251, 113, 133, 0.78);
  background: rgba(251, 113, 133, 0.28);
  color: #fff1f3;
}

.layer-rail {
  grid-row: 2 / 4;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  align-self: stretch;
  min-height: 0;
  padding: 10px 8px;
  background: var(--panel);
  border-radius: 8px;
}

.layer-buttons {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 8px;
}

.layer-btn {
  width: clamp(38px, 5.4vh, 50px);
  height: clamp(38px, 5.4vh, 50px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  background: var(--layer-color);
  color: #fff;
  font-weight: 800;
  box-shadow: 0 0 24px color-mix(in srgb, var(--layer-color) 38%, transparent);
}

.layer-btn.active {
  outline: 3px solid #fff;
  outline-offset: 4px;
}

.workspace {
  grid-column: 2;
  grid-row: 2;
  position: relative;
  display: grid;
  grid-template-rows: max-content minmax(0, 1fr);
  align-content: stretch;
  gap: 10px;
  min-width: 0;
  min-height: 0;
  pointer-events: none;
}

.field-status {
  grid-row: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(130px, 1fr));
  gap: 8px;
  padding: 10px;
  background: rgba(7, 11, 18, 0.62);
  border-radius: 8px;
  z-index: 2;
}

.field-status div {
  min-width: 0;
  padding: 8px 9px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.05);
}

.field-status strong {
  display: block;
  margin-top: 3px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.field-stage {
  grid-row: 2;
  position: relative;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  background: rgba(3, 7, 12, 0.2);
  pointer-events: auto;
}

#canvas-container {
  position: absolute;
  inset: 0;
  z-index: 0;
}

#canvas-container canvas {
  display: block;
  width: 100%;
  height: 100%;
  cursor: crosshair;
}

.inspector {
  grid-column: 3;
  grid-row: 2 / 4;
  align-self: stretch;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: hidden;
  gap: 8px;
  padding: 10px;
  background: var(--panel-strong);
  border-radius: 8px;
}

.panel-section {
  min-width: 0;
  min-height: 0;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.045);
  padding: 9px;
}

.inspector-header h2 {
  overflow-wrap: anywhere;
}

.inspector-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px;
}

.mapping-actions {
  display: flex;
  flex: 0 0 auto;
  flex-wrap: nowrap;
  justify-content: flex-end;
  gap: 6px;
  min-width: 0;
}

.mapping-actions .primary-btn,
.mapping-actions .danger-btn,
.mapping-actions .icon-btn {
  min-width: 54px;
  padding-inline: 9px;
}

.icon-btn {
  min-width: 54px;
}

.mapping-form {
  flex: 0 0 auto;
  display: grid;
  gap: 8px;
}

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

.full-span {
  grid-column: 1 / -1;
}

.inspector-utility {
  display: grid;
  gap: 8px;
  margin-top: auto;
}

.facet-dock {
  grid-column: 2;
  grid-row: 3;
  min-width: 0;
  min-height: 0;
  pointer-events: auto;
}

.data-actions {
  display: flex;
  gap: 7px;
  flex: 0 0 auto;
  flex-wrap: wrap;
  align-items: center;
  align-content: center;
  justify-content: flex-start;
}

.mapped-panel {
  display: grid;
  grid-template-columns: max-content minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  min-height: 0;
  overflow: hidden;
  padding-block: 6px;
}

.section-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section-title strong {
  min-width: 26px;
  min-height: 22px;
  display: inline-grid;
  place-items: center;
  border-radius: 999px;
  background: rgba(82, 214, 201, 0.14);
  color: #d9fffb;
}

.list-tools {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
}

.mapping-list {
  display: flex;
  align-items: stretch;
  gap: 8px;
  min-height: 0;
  overflow-x: auto;
  overflow-y: hidden;
  padding-bottom: 1px;
  scrollbar-width: thin;
  scrollbar-color: rgba(203, 213, 225, 0.58) transparent;
  scroll-snap-type: x proximity;
}

.mapping-list::-webkit-scrollbar {
  height: 5px;
}

.mapping-list::-webkit-scrollbar-track {
  background: transparent;
}

.mapping-list::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(203, 213, 225, 0.58);
}

.mapping-card {
  flex: 0 0 clamp(210px, 17vw, 280px);
  display: grid;
  gap: 3px;
  align-content: start;
  padding: 6px 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-left: 3px solid var(--item-color);
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.06);
  text-align: left;
  color: var(--text);
}

.mapping-card:hover,
.mapping-card.active {
  border-color: rgba(255, 255, 255, 0.24);
  background: rgba(255, 255, 255, 0.1);
}

.mapping-card-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 800;
}

.mapping-card-title span:first-child {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mapping-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 700;
}

.empty-state {
  flex: 1 0 100%;
  display: grid;
  place-items: center;
  min-height: 100%;
  color: var(--muted);
  border: 1px dashed rgba(255, 255, 255, 0.18);
  border-radius: 7px;
  text-align: center;
  padding: 18px;
}

@media (max-width: 1120px) {
  body {
    overflow: auto;
  }

  .app-shell {
    grid-template-columns: 78px minmax(0, 1fr);
    grid-template-rows: auto auto auto auto;
    height: auto;
    min-height: 100vh;
    overflow: visible;
  }

  .topbar {
    align-items: start;
    flex-direction: column;
  }

  .layer-rail {
    grid-row: 2;
  }

  .workspace {
    grid-column: 2;
  }

  .field-status {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .inspector {
    grid-column: 1 / -1;
    grid-row: 3;
  }

  .facet-dock {
    grid-column: 1 / -1;
    grid-row: 4;
    grid-template-columns: 1fr;
  }

  .mapped-panel {
    grid-template-columns: 1fr;
  }

  .data-actions {
    justify-content: flex-start;
    flex-wrap: wrap;
  }
}

@media (max-width: 720px) {
  .app-shell {
    grid-template-columns: 1fr;
    padding: 12px;
  }

  .layer-rail {
    grid-column: 1;
    min-height: auto;
    align-items: stretch;
  }

  .layer-buttons {
    grid-template-columns: repeat(7, minmax(0, 1fr));
  }

  .layer-btn {
    width: 44px;
    height: 44px;
    justify-self: center;
  }

  .workspace {
    grid-column: 1;
    min-height: 460px;
  }

  .facet-dock {
    grid-column: 1;
  }

  .field-status,
  .form-grid,
  .list-tools {
    grid-template-columns: 1fr;
  }
}