*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg-base: #080808;
  --bg-panel: #0f0f0f;
  --bg-card: #161616;
  --bg-input: #1a1a1a;
  --border: #222222;
  --border-hover: #333333;
  --accent: #00ff88;
  --accent2: #0088ff;
  --accent-dim: rgba(0,255,136,0.12);
  --danger: #ff4444;
  --text-pri: #eeeeee;
  --text-sec: #666666;
  --text-dim: #3a3a3a;
  --font-mono: 'JetBrains Mono', 'Space Mono', monospace;
  --sidebar-w: 240px;
  --middle-w: 280px;
  --radius: 4px;
  --transition: 0.15s ease;
}

html, body { height: 100%; overflow: hidden; background: var(--bg-base); }

body {
  font-family: var(--font-mono);
  color: var(--text-pri);
  font-size: 11px;
  -webkit-font-smoothing: antialiased;
}

#app {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

aside#sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

#sidebar-header {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

#home-link {
  display: flex;
  align-items: center;
  gap: 9px;
  text-decoration: none;
  padding: 6px 8px;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s;
  cursor: pointer;
}
#home-link:hover {
  background: rgba(61,232,160,0.07);
  border-color: rgba(61,232,160,0.25);
}

.home-mark {
  width: 30px;
  height: 30px;
  background: var(--accent);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  font-weight: 700;
  color: #080910;
  font-family: var(--font-mono, monospace);
  flex-shrink: 0;
}

.home-label {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.home-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.03em;
  line-height: 1;
}

.home-sub {
  font-size: 9px;
  color: var(--text-sec);
  letter-spacing: 0.05em;
  font-weight: 400;
  opacity: 0.7;
  transition: opacity 0.15s;
}
#home-link:hover .home-sub { opacity: 1; color: var(--accent); }

.logo-oled { display: none; }
.logo-sub  { display: none; }

.sidebar-scroll {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 6px 0 16px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.sidebar-scroll::-webkit-scrollbar { width: 4px; }
.sidebar-scroll::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.panel-section {
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.section-label {
  font-size: 9px;
  letter-spacing: 2.5px;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 4px;
  padding-bottom: 4px;
  border-bottom: 1px solid var(--accent-dim);
}

.btn {
  display: block;
  width: 100%;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  color: var(--text-pri);
  font-family: var(--font-mono);
  font-size: 11px;
  cursor: pointer;
  text-align: left;
  transition: border-color var(--transition), background var(--transition);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn:hover { border-color: var(--border-hover); background: #1e1e1e; }
.btn:active { transform: translateY(1px); }

.btn-primary {
  border-color: var(--accent2);
  color: var(--accent2);
}
.btn-primary:hover { background: rgba(0,136,255,0.1); border-color: #33aaff; }

.btn-accent {
  border-color: var(--accent);
  color: #000;
  background: var(--accent);
  font-weight: 700;
}
.btn-accent:hover { background: #33ffaa; border-color: #33ffaa; }

.btn-ghost { color: var(--text-sec); }
.btn-danger:hover { border-color: var(--danger); color: var(--danger); }

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

.dim-row label {
  display: flex;
  align-items: center;
  gap: 4px;
  color: var(--text-sec);
  font-size: 11px;
}

.dim-input {
  width: 70px;
  padding: 5px 7px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-pri);
  font-family: var(--font-mono);
  font-size: 12px;
}

.dim-input:focus { outline: none; border-color: var(--accent); }

.preset-row {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.preset-label { color: var(--text-sec); font-size: 10px; }

.btn-preset {
  padding: 4px 7px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-sec);
  font-family: var(--font-mono);
  font-size: 9px;
  cursor: pointer;
  transition: all var(--transition);
}
.btn-preset:hover { border-color: var(--accent); color: var(--accent); }

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  color: var(--text-sec);
  user-select: none;
}
.checkbox-row input[type="checkbox"] { accent-color: var(--accent); }
.checkbox-row.small { font-size: 10px; }

.slider-group { display: flex; flex-direction: column; gap: 8px; }

.slider-row {
  display: grid;
  grid-template-columns: 72px 1fr 38px;
  align-items: center;
  gap: 6px;
}

.slider-row span:first-child { color: var(--text-sec); font-size: 10px; }

.slider-row input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}
.slider-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
}
.slider-row input[type="range"]::-moz-range-thumb {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
}

.sl-val {
  color: var(--text-pri);
  font-size: 10px;
  text-align: right;
}

.field-label { color: var(--text-sec); font-size: 10px; margin-top: 4px; }

.select-input {
  width: 100%;
  padding: 6px 8px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-pri);
  font-family: var(--font-mono);
  font-size: 11px;
  cursor: pointer;
}
.select-input:focus { outline: none; border-color: var(--accent); }

#main-content {
  flex: 1;
  display: flex;
  overflow: hidden;
  gap: 0;
}

#middle-panel {
  width: var(--middle-w);
  min-width: var(--middle-w);
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 10px 8px;
  gap: 6px;
  overflow: hidden;
}

.panel-title {
  font-size: 9px;
  letter-spacing: 2.5px;
  color: var(--accent);
  font-weight: 700;
}

#source-wrap {
  flex: 1;
  background: #080808;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  min-height: 100px;
}

#canvas-source {
  display: block;
  width: 100%;
  height: 100%;
}

#crop-hint {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0,0,0,0.8);
  color: var(--accent);
  padding: 6px 12px;
  border-radius: var(--radius);
  font-size: 10px;
  pointer-events: none;
  border: 1px solid var(--accent);
}

#preview-wrap {
  height: 120px;
  background: #080808;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  flex-shrink: 0;
}

#canvas-preview { image-rendering: pixelated; display: block; }

#info-bar {
  font-size: 9px;
  color: var(--text-sec);
  letter-spacing: 0.5px;
  padding: 4px 2px;
  flex-shrink: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

#editor-panel {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--bg-base);
}

#editor-topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
  flex-shrink: 0;
}

.dim-label {
  color: var(--text-sec);
  font-size: 10px;
}

.topbar-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.zoom-ctrl {
  display: flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2px;
}

.zoom-ctrl button {
  width: 22px; height: 22px;
  background: transparent;
  border: none;
  color: var(--text-sec);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  display: flex; align-items: center; justify-content: center;
  border-radius: 3px;
  transition: all var(--transition);
}
.zoom-ctrl button:hover { color: var(--accent); background: var(--accent-dim); }

#lbl-zoom { font-size: 10px; color: var(--text-sec); min-width: 28px; text-align: center; }

.btn-icon {
  width: 30px; height: 30px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-sec);
  font-size: 16px;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: all var(--transition);
}
.btn-icon:hover { border-color: var(--border-hover); color: var(--text-pri); }
.btn-icon:active { transform: translateY(1px); }

#editor-body {
  flex: 1;
  display: flex;
  overflow: hidden;
}

#canvas-editor-wrap {
  flex: 1;
  overflow: auto;
  background: #060606;
  position: relative;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}
#canvas-editor-wrap::-webkit-scrollbar { width: 8px; height: 8px; }
#canvas-editor-wrap::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }
#canvas-editor-wrap::-webkit-scrollbar-corner { background: transparent; }

#canvas-editor {
  display: block;
  image-rendering: pixelated;
  cursor: crosshair;
}

#tool-panel {
  width: 130px;
  min-width: 130px;
  background: var(--bg-panel);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  padding: 10px 8px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.tool-section-label {
  font-size: 8px;
  letter-spacing: 2px;
  color: var(--accent);
  font-weight: 700;
  margin-bottom: 2px;
  padding-bottom: 3px;
  border-bottom: 1px solid var(--accent-dim);
}

.tool-list { display: flex; flex-direction: column; gap: 2px; }

.tool-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px 7px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--transition);
  color: var(--text-sec);
  font-size: 10px;
  user-select: none;
}
.tool-btn input[type="radio"] { display: none; }
.tool-btn:hover { background: var(--bg-card); color: var(--text-pri); }
.tool-btn:has(input:checked) {
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(0,255,136,0.3);
}

.color-btn {
  width: 100%;
  padding: 6px 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-pri);
  font-family: var(--font-mono);
  font-size: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  transition: border-color var(--transition);
}
.color-btn:hover { border-color: var(--border-hover); }

.color-swatch {
  width: 14px; height: 14px;
  border-radius: 2px;
  border: 1px solid rgba(255,255,255,0.15);
  flex-shrink: 0;
}

.btn-small {
  width: 100%;
  padding: 5px 7px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-sec);
  font-family: var(--font-mono);
  font-size: 9px;
  cursor: pointer;
  text-align: left;
  transition: all var(--transition);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.btn-small:hover { border-color: var(--border-hover); color: var(--text-pri); background: var(--bg-card); }
.btn-small:active { transform: translateY(1px); }

.cursor-pos {
  margin-top: auto;
  padding-top: 12px;
  color: var(--text-dim);
  font-size: 9px;
  letter-spacing: 0.5px;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-pri);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 10px 18px;
  z-index: 9999;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s, transform 0.2s;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.toast.hidden { display: none; }
.toast.accent { border-color: var(--accent); color: var(--accent); }

.hidden { display: none !important; }

input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button { opacity: 0.4; }

@media (max-width: 1100px) {
  :root { --sidebar-w: 200px; --middle-w: 220px; }
}