:root,
[data-theme="light"] {
  /* Catppuccin Latte — soft, warm-neutral coding palette */
  color-scheme: light;
  --bg: #e6e9ef;
  --rail: #eff1f5;
  --ink: #4c4f69;
  --muted: #6c6f85;
  --line: #ccd0da;
  --line-strong: #acb0be;
  --canvas: #1e2030;
  --canvas-2: #2a2d42;
  --panel: #ffffff;
  --accent: #0e7c86;
  --accent-2: #1899a0;
  --logic: #8839ef;
  --output: #e64553;
  --warn: #df8e1d;
  --danger: #d20f39;
  --good: #40a02b;
  --chip: #e6e9ef;
  --surface-raised: #ffffff;
  --surface-soft: #eceef4;
  --surface-hover: #f4f5f8;
  --input-bg: #ffffff;
  --topbar-bg: rgba(239, 241, 245, 0.9);
  --on-accent: #ffffff;
  --code-bg: #1e2030;
  --code-ink: #cad3f5;
  --node-bg: #ffffff;
  --toolbar-bg: #232634;
  --toolbar-ink: #e6e9ef;
  --note-bg: rgba(14, 124, 134, 0.07);
  --warning-bg: #faf0dc;
  --warning-ink: #8a5a0a;
  --warning-line: #df8e1d;
  --good-bg: rgba(64, 160, 43, 0.1);
  --good-line: rgba(64, 160, 43, 0.32);
  --danger-bg: rgba(210, 15, 57, 0.08);
  --danger-line: rgba(210, 15, 57, 0.28);
  --canvas-grid: rgba(255, 255, 255, 0.05);
  --canvas-glow: rgba(24, 153, 160, 0.14);
  --canvas-hint-bg: rgba(30, 32, 48, 0.8);
  --matrix-bg: #1e2030;
  --matrix-cell: #2a2d42;
  --matrix-line: #494d64;
  --modal-backdrop: rgba(30, 32, 48, 0.42);
  --focus-ring: rgba(14, 124, 134, 0.36);
  --hairline-shadow: 0 1px 0 rgba(76, 79, 105, 0.05);
  --shadow: 0 14px 34px rgba(76, 79, 105, 0.12);
  --mono: "JetBrains Mono", "D2Coding", Consolas, ui-monospace, monospace;
  --sans: "Pretendard", "Noto Sans KR", Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
}

body,
.topbar,
.left-rail,
.panel-section,
.node,
input,
select,
button {
  transition: background-color 0.18s ease, border-color 0.18s ease, color 0.18s ease, box-shadow 0.18s ease;
}

::selection {
  background: var(--accent);
  color: var(--on-accent);
}

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.studio-shell {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  grid-template-rows: 78px minmax(0, 1fr);
  height: 100vh;
}

.topbar {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 11px 18px;
  border-bottom: 1px solid var(--line);
  background: var(--topbar-bg);
  box-shadow: var(--hairline-shadow);
  backdrop-filter: blur(16px) saturate(1.15);
  z-index: 10;
}

.brand-block,
.top-actions,
.section-head,
.canvas-toolbar,
.control-grid,
.button-stack {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-block {
  min-width: 0;
  gap: 16px;
}

.back-link {
  flex: 0 0 auto;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 850;
  background: var(--surface-raised);
}

.back-link:hover {
  border-color: var(--accent);
  background: var(--surface-hover);
}

.eyebrow {
  margin: 0 0 2px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 23px;
  line-height: 1.1;
  letter-spacing: -0.025em;
}

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

.top-actions {
  justify-content: flex-end;
  flex-wrap: wrap;
}

.theme-picker {
  display: grid;
  grid-template-columns: 12px auto minmax(86px, auto);
  align-items: center;
  gap: 6px;
  min-height: 38px;
  padding: 4px 5px 4px 9px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-raised);
  color: var(--muted);
  font-size: 11px;
  font-weight: 850;
}

.theme-swatch {
  width: 10px;
  height: 10px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  background: var(--logic);
  box-shadow: 5px 0 0 -2px var(--output);
}

.theme-picker select {
  width: auto;
  min-height: 28px;
  border: 0;
  background: var(--surface-soft);
  padding: 4px 24px 4px 8px;
  font-size: 11px;
  font-weight: 850;
}

.status-pill {
  min-width: 98px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 10px;
  background: var(--chip);
  color: var(--muted);
  font-size: 12px;
  font-weight: 850;
  text-align: center;
}

.status-pill.on {
  border-color: var(--good-line);
  background: var(--good-bg);
  color: var(--good);
}

.tool-btn,
.mini-btn {
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: var(--surface-raised);
  color: var(--ink);
  font-weight: 850;
  transition: transform 0.14s ease, border-color 0.14s ease, background 0.14s ease;
}

.tool-btn {
  min-height: 38px;
  padding: 8px 12px;
}

.mini-btn {
  min-height: 30px;
  padding: 5px 9px;
  font-size: 12px;
}

.mini-btn.square {
  width: 32px;
  padding: 0;
}

.tool-btn:hover,
.mini-btn:hover {
  border-color: var(--accent);
  background: var(--surface-hover);
  transform: translateY(-1px);
}

.tool-btn:disabled,
.mini-btn:disabled {
  cursor: not-allowed;
  opacity: 0.48;
  transform: none;
}

.tool-btn.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--on-accent);
}

.tool-btn.danger {
  border-color: var(--danger-line);
  background: var(--danger-bg);
  color: var(--danger);
}

.left-rail {
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  overflow: hidden;
  border-right: 1px solid var(--line);
  background: var(--rail);
  padding: 14px;
}

.tab-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 4px;
  margin-bottom: 10px;
  padding: 4px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--surface-soft);
}

.tab-button {
  min-width: 0;
  min-height: 34px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
}

.tab-button:hover {
  border-color: var(--line-strong);
  background: var(--surface-hover);
}

.tab-button.active {
  border-color: var(--line);
  background: var(--surface-raised);
  color: var(--ink);
  box-shadow: var(--hairline-shadow);
}

.tab-panels {
  min-height: 0;
  overflow: auto;
}

.tab-panel {
  display: grid;
  gap: 12px;
}

.tab-panel[hidden] {
  display: none;
}

.panel-section {
  display: grid;
  gap: 10px;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: var(--hairline-shadow);
}

.panel-section + .panel-section,
.tab-panel > .panel-section + .panel-section {
  margin-top: 12px;
}

[data-theme="dark"] {
  /* Catppuccin Mocha — luminous accents on deep indigo */
  color-scheme: dark;
  --bg: #181825;
  --rail: #1e1e2e;
  --ink: #cdd6f4;
  --muted: #a6adc8;
  --line: #313244;
  --line-strong: #585b70;
  --canvas: #11111b;
  --canvas-2: #1e1e2e;
  --panel: #1e1e2e;
  --accent: #94e2d5;
  --accent-2: #89dceb;
  --logic: #cba6f7;
  --output: #f38ba8;
  --warn: #f9e2af;
  --danger: #f38ba8;
  --good: #a6e3a1;
  --chip: #282a3d;
  --surface-raised: #282a3d;
  --surface-soft: #181825;
  --surface-hover: #313244;
  --input-bg: #181825;
  --topbar-bg: rgba(24, 24, 37, 0.92);
  --on-accent: #11131e;
  --code-bg: #11111b;
  --code-ink: #cad3f5;
  --node-bg: #232336;
  --toolbar-bg: #181825;
  --toolbar-ink: #cdd6f4;
  --note-bg: rgba(148, 226, 213, 0.1);
  --warning-bg: rgba(249, 226, 175, 0.12);
  --warning-ink: #f9e2af;
  --warning-line: #d9b967;
  --good-bg: rgba(166, 227, 161, 0.1);
  --good-line: rgba(166, 227, 161, 0.34);
  --danger-bg: rgba(243, 139, 168, 0.1);
  --danger-line: rgba(243, 139, 168, 0.34);
  --canvas-grid: rgba(255, 255, 255, 0.06);
  --canvas-glow: rgba(148, 226, 213, 0.14);
  --canvas-hint-bg: rgba(17, 17, 27, 0.86);
  --matrix-bg: #11111b;
  --matrix-cell: #262838;
  --matrix-line: #494d64;
  --modal-backdrop: rgba(0, 0, 0, 0.68);
  --focus-ring: rgba(148, 226, 213, 0.42);
  --hairline-shadow: 0 1px 0 rgba(0, 0, 0, 0.32);
  --shadow: 0 18px 42px rgba(0, 0, 0, 0.42);
}

[data-theme="ocean"] {
  /* Nord — cool frost accents on snow-storm light */
  color-scheme: light;
  --bg: #e5e9f0;
  --rail: #eceff4;
  --ink: #2e3440;
  --muted: #4c566a;
  --line: #d8dee9;
  --line-strong: #aeb8c8;
  --canvas: #2e3440;
  --canvas-2: #3b4252;
  --panel: #ffffff;
  --accent: #4c6f9c;
  --accent-2: #5b9aad;
  --logic: #9d7cad;
  --output: #b0555f;
  --warn: #b57636;
  --danger: #b0434e;
  --good: #5c8a4a;
  --chip: #dbe1ea;
  --surface-raised: #ffffff;
  --surface-soft: #e4e9f1;
  --surface-hover: #f0f3f8;
  --input-bg: #ffffff;
  --topbar-bg: rgba(236, 239, 244, 0.92);
  --on-accent: #ffffff;
  --code-bg: #2e3440;
  --code-ink: #e5e9f0;
  --node-bg: #ffffff;
  --toolbar-bg: #2e3440;
  --toolbar-ink: #e5e9f0;
  --note-bg: rgba(76, 111, 156, 0.08);
  --warning-bg: #f6ecd7;
  --warning-ink: #6d4d17;
  --warning-line: #c08b3a;
  --good-bg: rgba(92, 138, 74, 0.12);
  --good-line: rgba(92, 138, 74, 0.32);
  --danger-bg: rgba(176, 67, 78, 0.08);
  --danger-line: rgba(176, 67, 78, 0.28);
  --canvas-grid: rgba(216, 222, 233, 0.08);
  --canvas-glow: rgba(91, 154, 173, 0.16);
  --canvas-hint-bg: rgba(46, 52, 64, 0.82);
  --matrix-bg: #2e3440;
  --matrix-cell: #3b4252;
  --matrix-line: #4c566a;
  --modal-backdrop: rgba(46, 52, 64, 0.46);
  --focus-ring: rgba(76, 111, 156, 0.36);
  --hairline-shadow: 0 1px 0 rgba(46, 52, 64, 0.07);
  --shadow: 0 16px 38px rgba(46, 52, 64, 0.16);
}

[data-theme="sunset"] {
  /* Rosé Pine Dawn — muted rose and iris on warm parchment */
  color-scheme: light;
  --bg: #f4ede4;
  --rail: #faf4ed;
  --ink: #575279;
  --muted: #797593;
  --line: #e5ddd2;
  --line-strong: #cabfb3;
  --canvas: #2e2433;
  --canvas-2: #473850;
  --panel: #fffaf3;
  --accent: #b4637a;
  --accent-2: #ca7a6e;
  --logic: #907aa9;
  --output: #c1506a;
  --warn: #c4841f;
  --danger: #b4293f;
  --good: #4a8189;
  --chip: #f0e6da;
  --surface-raised: #fffaf3;
  --surface-soft: #f2e7db;
  --surface-hover: #fdf6ee;
  --input-bg: #fffdfb;
  --topbar-bg: rgba(250, 244, 237, 0.92);
  --on-accent: #ffffff;
  --code-bg: #2e2433;
  --code-ink: #f2e9e1;
  --node-bg: #fffaf3;
  --toolbar-bg: #3a2b39;
  --toolbar-ink: #f4e9e0;
  --note-bg: rgba(180, 99, 122, 0.09);
  --warning-bg: #f7ecd3;
  --warning-ink: #6f4a0d;
  --warning-line: #c4841f;
  --good-bg: rgba(74, 129, 137, 0.12);
  --good-line: rgba(74, 129, 137, 0.32);
  --danger-bg: rgba(180, 41, 63, 0.08);
  --danger-line: rgba(180, 41, 63, 0.28);
  --canvas-grid: rgba(242, 233, 225, 0.07);
  --canvas-glow: rgba(202, 122, 110, 0.16);
  --canvas-hint-bg: rgba(46, 36, 51, 0.84);
  --matrix-bg: #2e2433;
  --matrix-cell: #473850;
  --matrix-line: #7d6a86;
  --modal-backdrop: rgba(46, 36, 51, 0.5);
  --focus-ring: rgba(180, 99, 122, 0.36);
  --hairline-shadow: 0 1px 0 rgba(87, 82, 121, 0.06);
  --shadow: 0 16px 38px rgba(87, 82, 121, 0.16);
}

.panel-note {
  margin: 0;
  padding: 9px 11px;
  border: 1px solid var(--line);
  border-color: color-mix(in srgb, var(--accent) 18%, var(--line));
  border-radius: 10px;
  background: var(--note-bg);
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
}

.panel-note.warning {
  border-color: color-mix(in srgb, var(--warning-line) 40%, var(--line));
  background: var(--warning-bg);
  color: var(--warning-ink);
}

.panel-note code {
  font-family: var(--mono);
  font-size: 0.95em;
}

.section-head {
  justify-content: space-between;
}

.section-head strong {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 12px;
}

.camera-stage {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--code-bg);
}

#cam,
#overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

#cam.mirror,
#overlay.mirror {
  transform: scaleX(-1);
}

.stage-empty {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: #dbe5e8;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px) 0 0 / 18px 18px,
    linear-gradient(0deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px) 0 0 / 18px 18px,
    var(--code-bg);
  font-weight: 850;
  pointer-events: none;
}

.stage-empty.hidden {
  display: none;
}

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

.control-grid .full-row {
  grid-column: 1 / -1;
}

label {
  display: grid;
  gap: 5px;
  min-width: 0;
}

label span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 850;
}

input,
select {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--ink);
  padding: 8px 9px;
}

.wide-select {
  width: 100%;
}

.switch-row {
  display: inline-flex;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 8px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
}

.switch-row input {
  width: 16px;
  height: 16px;
  accent-color: var(--accent);
}

.switch-row.compact {
  min-height: 30px;
}

.mini-log,
.board-log,
.code-view {
  margin: 0;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--code-bg);
  color: var(--code-ink);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.55;
}

.mini-log {
  height: 82px;
  padding: 8px;
}

.palette {
  display: grid;
  gap: 10px;
}

.palette-group {
  display: grid;
  gap: 7px;
}

.palette-title {
  color: var(--muted);
  font-size: 11px;
  font-weight: 900;
}

.palette-buttons {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 6px;
}

.palette-button {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-raised);
  color: var(--ink);
  font-size: 12px;
  font-weight: 850;
  text-align: left;
  padding: 7px 9px;
}

.palette-button::before {
  content: "";
  flex: 0 0 auto;
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: var(--group, var(--muted));
}

.palette-button[data-group="input"] {
  --group: var(--accent-2);
}

.palette-button[data-group="sensor"] {
  --group: var(--warn);
}

.palette-button[data-group="logic"] {
  --group: var(--logic);
}

.palette-button[data-group="output"] {
  --group: var(--output);
}

.palette-button:hover {
  border-color: color-mix(in srgb, var(--group, var(--accent)) 55%, var(--line));
  background: var(--surface-hover);
}

.canvas-area {
  position: relative;
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: 44px minmax(0, 1fr);
  background: var(--canvas);
}

.canvas-toolbar {
  justify-content: flex-start;
  padding: 7px 10px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--toolbar-bg);
  color: var(--toolbar-ink);
}

.canvas-toolbar .mini-btn {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: var(--toolbar-ink);
}

#editor-canvas {
  position: relative;
  min-width: 0;
  min-height: 0;
  overflow: hidden;
  background:
    linear-gradient(90deg, var(--canvas-grid) 1px, transparent 1px) 0 0 / 32px 32px,
    linear-gradient(0deg, var(--canvas-grid) 1px, transparent 1px) 0 0 / 32px 32px,
    radial-gradient(circle at 50% 50%, var(--canvas-glow), transparent 42%),
    var(--canvas);
  touch-action: none;
}

#viewport {
  position: absolute;
  inset: 0;
  transform-origin: 0 0;
}

#wire-layer,
#node-layer {
  position: absolute;
  inset: 0;
  width: 3600px;
  height: 2200px;
}

#wire-layer {
  z-index: 1;
  overflow: visible;
  pointer-events: none;
}

#node-layer {
  z-index: 2;
}

.canvas-hint {
  position: absolute;
  left: 50%;
  top: 50%;
  z-index: 3;
  transform: translate(-50%, -50%);
  border: 1px dashed rgba(255, 255, 255, 0.28);
  border-radius: 8px;
  padding: 14px 18px;
  color: var(--toolbar-ink);
  background: var(--canvas-hint-bg);
  pointer-events: none;
}

.canvas-hint.hidden {
  display: none;
}

.canvas-controls {
  position: absolute;
  right: 14px;
  bottom: 14px;
  z-index: 5;
  display: flex;
  gap: 6px;
}

.canvas-controls .mini-btn {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(16, 19, 21, 0.72);
  color: var(--toolbar-ink);
}

.node {
  position: absolute;
  width: 252px;
  min-height: 118px;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--node-bg);
  box-shadow: var(--shadow);
  user-select: none;
}

.node[data-group="input"] {
  --group: var(--accent-2);
}

.node[data-group="sensor"] {
  --group: var(--warn);
}

.node[data-group="logic"] {
  --group: var(--logic);
}

.node[data-group="output"] {
  --group: var(--output);
}

.node[data-group] {
  border-color: color-mix(in srgb, var(--group) 26%, var(--line-strong));
}

.node[data-node-type="neopixel-square"] {
  width: 340px;
}

.node.selected {
  outline: 3px solid var(--focus-ring);
}

.node.dragging {
  opacity: 0.92;
  z-index: 4;
}

.node-header {
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 38px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line);
  cursor: grab;
}

.node-header::before {
  content: "";
  flex: 0 0 auto;
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--group, var(--muted));
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--group, var(--muted)) 16%, transparent);
}

.node[data-group] .node-header {
  border-bottom-color: color-mix(in srgb, var(--group) 22%, var(--line));
  background: color-mix(in srgb, var(--group) 7%, transparent);
}

.node-header:active {
  cursor: grabbing;
}

.node-title {
  flex: 1;
  min-width: 0;
  overflow: hidden;
  color: var(--ink);
  font-size: 13px;
  font-weight: 900;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.node-help,
.node-delete {
  width: 24px;
  height: 24px;
  border: 0;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
  font-size: 14px;
  font-weight: 900;
}

.node-delete {
  font-size: 18px;
}

.node-help:hover {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
}

.node-delete:hover {
  background: color-mix(in srgb, var(--danger) 12%, transparent);
  color: var(--danger);
}

.node-body {
  display: grid;
  gap: 8px;
  padding: 9px 10px 10px;
}

.node-camera-preview {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: 7px;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.06) 1px, transparent 1px) 0 0 / 14px 14px,
    var(--code-bg);
}

.neo-animation-editor {
  display: grid;
  gap: 8px;
  padding: 9px;
  border: 1px solid var(--danger-line);
  border-radius: 10px;
  background: var(--surface-soft);
}

.neo-preset-row,
.neo-frame-row,
.neo-brush-row {
  display: grid;
  align-items: center;
  gap: 6px;
}

.neo-preset-row {
  grid-template-columns: minmax(0, 1fr) auto;
}

.neo-frame-row {
  grid-template-columns: 28px minmax(74px, 1fr) 28px 28px auto auto;
}

.neo-frame-row strong {
  color: var(--ink);
  font-size: 11px;
  text-align: center;
}

.neo-preset-row button,
.neo-frame-row button {
  min-height: 28px;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  background: var(--input-bg);
  color: var(--ink);
  font-size: 11px;
  font-weight: 850;
  padding: 4px 7px;
}

.neo-preset-row button:hover,
.neo-frame-row button:hover {
  border-color: var(--output);
  color: var(--output);
}

.neo-matrix {
  display: grid;
  grid-template-columns: repeat(var(--neo-columns, 6), minmax(0, 1fr));
  gap: 4px;
  padding: 8px;
  border-radius: 8px;
  background: var(--matrix-bg);
}

.neo-pixel {
  min-width: 0;
  aspect-ratio: 1;
  border: 1px solid var(--matrix-line);
  border-radius: 5px;
  background: var(--matrix-cell);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.04);
  padding: 0;
}

.neo-pixel.on {
  border-color: var(--pixel-color, #fff);
  background: var(--pixel-color, #fff);
  opacity: var(--pixel-alpha, 1);
  box-shadow: 0 0 8px var(--pixel-color, #fff);
}

.neo-pixel.selected {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.neo-pixel:focus-visible {
  outline: 3px solid var(--warn);
  outline-offset: 2px;
}

.neo-brush-row {
  grid-template-columns: 92px minmax(0, 1fr);
}

.neo-brush-row label {
  align-content: start;
}

.neo-brush-row input[type="color"] {
  height: 34px;
  padding: 3px;
}

.neo-brush-row input[type="range"] {
  padding: 0;
  accent-color: var(--output);
}

.neo-brush-row output {
  color: var(--muted);
  font-size: 10px;
  font-weight: 850;
}

.neo-duration {
  grid-template-columns: minmax(0, 1fr) 92px;
  align-items: center;
}

.neo-duration input {
  padding-block: 6px;
}

.node-param {
  display: grid;
  gap: 4px;
}

.node-param label {
  color: var(--muted);
  font-size: 11px;
  font-weight: 850;
}

.node-param input,
.node-param select {
  padding: 6px 7px;
  font-size: 12px;
}

.port-row {
  display: flex;
  align-items: center;
  min-height: 23px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 750;
}

.port-row.out {
  justify-content: flex-end;
}

.port {
  width: 14px;
  height: 14px;
  border: 2px solid #8a98a4;
  border-radius: 999px;
  background: var(--surface-raised);
  cursor: crosshair;
  transition: transform 0.14s ease, background 0.14s ease;
}

.port:hover {
  transform: scale(1.22);
  background: var(--surface-hover);
}

.port-in {
  margin-right: 8px;
}

.port-out {
  margin-left: 8px;
}

.port[data-kind="number"] {
  border-color: var(--accent);
}

.port[data-kind="bool"] {
  border-color: var(--logic);
}

.port[data-kind="string"] {
  border-color: var(--warn);
}

.port[data-kind="any"] {
  border-color: #8a98a4;
}

.node-readout {
  min-height: 28px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 5px 7px;
  background: var(--surface-soft);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.node.live .node-readout {
  border-color: var(--good-line);
  background: var(--good-bg);
  color: var(--good);
}

.wire {
  fill: none;
  stroke: rgba(238, 242, 244, 0.52);
  stroke-width: 3;
  pointer-events: stroke;
  cursor: pointer;
}

.wire:hover,
.wire.selected {
  stroke: #e0f6ef;
  stroke-width: 5;
}

.wire.live {
  stroke: #51d6ba;
  stroke-dasharray: 9 7;
  animation: wireFlow 0.85s linear infinite;
}

.wire.temp {
  stroke: rgba(255, 255, 255, 0.44);
  stroke-dasharray: 6 6;
}

@keyframes wireFlow {
  to {
    stroke-dashoffset: -32;
  }
}

.button-stack {
  display: grid;
  grid-template-columns: 1fr;
}

.device-summary {
  display: grid;
  gap: 6px;
}

.device-chip {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 8px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--line-strong);
}

.status-dot.on {
  background: var(--good);
}

.file-drop {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 58px;
  border: 1px dashed var(--line-strong);
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--muted);
  font-weight: 850;
}

.file-drop input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

progress {
  width: 100%;
  height: 10px;
  accent-color: var(--accent);
}

.code-section {
  min-height: 260px;
}

.code-view {
  height: 310px;
  padding: 10px;
  white-space: pre;
}

.log-section {
  min-height: 190px;
}

.board-log {
  height: 190px;
  padding: 10px;
  white-space: pre-wrap;
}

.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: grid;
  place-items: center;
  padding: 24px;
  background: var(--modal-backdrop);
  backdrop-filter: blur(8px);
}

.modal-backdrop[hidden] {
  display: none;
}

.modal-dialog {
  width: min(520px, 100%);
  max-height: min(680px, calc(100vh - 48px));
  overflow: auto;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.modal-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 18px 12px;
  border-bottom: 1px solid var(--line);
}

.modal-head h2 {
  font-size: 20px;
}

.modal-close {
  width: 34px;
  height: 34px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface-soft);
  color: var(--muted);
  font-size: 22px;
  line-height: 1;
}

.modal-close:hover {
  border-color: var(--danger);
  color: var(--danger);
}

.modal-body {
  display: grid;
  gap: 12px;
  padding: 16px 18px 18px;
  color: var(--ink);
  line-height: 1.65;
}

.modal-body p {
  color: var(--ink);
}

.modal-body dl {
  display: grid;
  gap: 8px;
  margin: 0;
}

.modal-body div {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr);
  gap: 10px;
  padding: 8px 0;
  border-top: 1px solid var(--line);
}

.modal-body dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
}

.modal-body dd {
  margin: 0;
}

#toast-root {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 100;
  display: grid;
  gap: 8px;
}

.toast {
  max-width: 360px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  padding: 10px 12px;
  background: var(--surface-raised);
  box-shadow: var(--shadow);
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
}

.toast.good {
  border-color: var(--good-line);
  color: var(--good);
}

.toast.err {
  border-color: var(--danger-line);
  color: var(--danger);
}

@media (max-width: 1180px) {
  body {
    overflow: auto;
  }

  .studio-shell {
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: auto auto 72vh;
    min-height: 100vh;
    height: auto;
  }

  .topbar,
  .left-rail,
  .canvas-area {
    grid-column: 1;
  }

  .topbar,
  .brand-block,
  .top-actions {
    align-items: flex-start;
    flex-direction: column;
  }

  .left-rail {
    display: block;
    overflow: visible;
    border: 0;
  }

  .palette-buttons {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .palette-buttons,
  .control-grid {
    grid-template-columns: 1fr;
  }

  .canvas-toolbar {
    overflow-x: auto;
  }

  .node {
    width: 232px;
  }

  .node[data-node-type="neopixel-square"] {
    width: min(340px, calc(100vw - 24px));
  }
}