:root {
  color-scheme: light;
  --bg: #0c0f14;
  --panel: #171b23;
  --panel-2: #1f2530;
  --accent: #ff4d6d;
  --accent-2: #7dd3fc;
  --text: #f7f5f0;
  --muted: #a7b0be;
  --grid: rgba(255, 255, 255, 0.08);
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "IBM Plex Mono", "Menlo", "Consolas", "Courier New", monospace;
  background: radial-gradient(circle at 10% 20%, #2e3b52 0%, transparent 60%),
    radial-gradient(circle at 90% 10%, #293648 0%, transparent 55%),
    var(--bg);
  color: var(--text);
  padding: 24px;
  overflow-x: hidden;
}

.bg-orb {
  position: fixed;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.45;
  z-index: 0;
}

.orb-a {
  top: -120px;
  left: -80px;
  background: radial-gradient(circle, #f97316 0%, transparent 70%);
}

.orb-b {
  bottom: -140px;
  right: -120px;
  background: radial-gradient(circle, #22d3ee 0%, transparent 70%);
}

.topbar {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.brand {
  font-size: 32px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

.sub {
  margin-top: 6px;
  color: var(--muted);
  font-size: 14px;
}

.badge {
  padding: 8px 14px;
  border-radius: 999px;
  background: linear-gradient(120deg, #1f2937, #0f172a);
  border: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.workspace {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 240px 1fr 240px;
  gap: 20px;
  align-items: start;
}

.side-stack {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-image {
  width: 100%;
  display: block;
  border-radius: 12px;
  margin-bottom: 12px;
}

.about-text {
  margin: 0;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}

.panel {
  background: linear-gradient(160deg, var(--panel) 0%, var(--panel-2) 100%);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 16px;
  box-shadow: var(--shadow);
  animation: slideUp 0.6s ease both;
}

.panel.tools {
  max-height: calc(100vh - 24px - 16px);
  overflow-y: auto;
  padding-right: 12px;
}

.panel.tools::-webkit-scrollbar {
  width: 6px;
}

.panel.tools::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 999px;
}

.panel.tools::-webkit-scrollbar-track {
  background: transparent;
}

.panel h2 {
  margin: 0 0 14px;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 13px;
  color: var(--muted);
}

.divider {
  height: 1px;
  background: rgba(255, 255, 255, 0.08);
  margin: 18px 0;
}

.field label {
  color: var(--text);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.palette {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
}

.palette button {
  border: none;
  height: 22px;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.palette button.active {
  outline: 2px solid var(--accent-2);
  outline-offset: 2px;
}

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

.segmented button,
button {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #0f141c;
  color: var(--text);
  border-radius: 10px;
  padding: 8px 10px;
  cursor: pointer;
  transition: transform 0.2s ease, border 0.2s ease;
  font-size: 12px;
  font-family: "IBM Plex Mono", "Menlo", "Consolas", "Courier New", monospace;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.segmented button.active {
  border-color: var(--accent);
  transform: translateY(-1px);
}

button:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 255, 255, 0.3);
}

.row {
  display: flex;
  gap: 8px;
}

select,
input[type="range"],
input[type="file"],
input[type="color"] {
  background: #0f141c;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text);
  border-radius: 10px;
  padding: 6px 8px;
  font-size: 12px;
  font-family: "IBM Plex Mono", "Menlo", "Consolas", "Courier New", monospace;
}

input[type="color"] {
  padding: 0;
  height: 36px;
  width: 100%;
}

input[type="file"]::file-selector-button {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #0f141c;
  color: var(--text);
  border-radius: 8px;
  padding: 6px 10px;
  margin-right: 10px;
  cursor: pointer;
  font-size: 12px;
  font-family: "IBM Plex Mono", "Menlo", "Consolas", "Courier New", monospace;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
}

.canvas-wrap {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  justify-content: center;
  animation: floatIn 0.7s ease both;
}

.canvas-frame {
  padding: 14px;
  border-radius: 18px;
  background: rgba(12, 15, 20, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: var(--shadow);
}

.canvas-stack {
  position: relative;
}

#pixel-canvas {
  display: block;
  image-rendering: pixelated;
  background: #0a0c10;
  border-radius: 12px;
  touch-action: none;
}

#layer-canvas {
  position: absolute;
  inset: 0;
  border-radius: 12px;
  pointer-events: none;
  image-rendering: pixelated;
  touch-action: none;
}

.status {
  display: flex;
  gap: 16px;
  font-size: 11px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.preview {
  margin-top: 10px;
  padding: 12px;
  border-radius: 14px;
  background: rgba(8, 12, 18, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

#mini-preview {
  display: block;
  background: #0a0c10;
  border-radius: 8px;
  image-rendering: pixelated;
}

.footer {
  margin-top: 24px;
  text-align: center;
  color: var(--muted);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.export-tip {
  margin: 0 0 12px;
}

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

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes floatIn {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (max-width: 1100px) {
  .workspace {
    grid-template-columns: 1fr;
  }

  .canvas-wrap {
    order: -1;
  }
}

@media (max-width: 1024px) {
  body {
    padding: 20px;
  }

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

  .panel.tools {
    max-height: none;
  }

  .status {
    flex-wrap: wrap;
    justify-content: center;
    text-align: center;
  }
}

@media (max-width: 700px) {
  body {
    padding: 20px;
  }

  .topbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .brand {
    font-size: 24px;
  }

  .row {
    flex-direction: column;
  }
}