/* Eye Candy Web — Styles */
:root {
  --bg-darkest: #1a1a2e;
  --bg-dark: #16213e;
  --bg-panel: #0f3460;
  --bg-panel-light: #1a4a7a;
  --accent: #e94560;
  --accent-glow: rgba(233, 69, 96, 0.4);
  --text: #eee;
  --text-dim: #999;
  --border: #2a3a5e;
  --radius: 8px;
}

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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg-darkest);
  color: var(--text);
  overflow: hidden;
  height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Top bar */
.topbar {
  display: flex;
  align-items: center;
  padding: 8px 16px;
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border);
  gap: 16px;
  flex-shrink: 0;
  z-index: 100;
}
.topbar .logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  text-shadow: 0 0 20px var(--accent-glow);
  white-space: nowrap;
}
.topbar .logo span { color: var(--text-dim); font-weight: 400; font-size: 12px; }
.input-group {
  display: flex;
  align-items: center;
  gap: 8px;
}
.input-group label { font-size: 12px; color: var(--text-dim); white-space: nowrap; }
.text-input {
  background: var(--bg-darkest);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 14px;
  width: 200px;
  outline: none;
}
.text-input:focus { border-color: var(--accent); box-shadow: 0 0 0 2px var(--accent-glow); }
.color-input {
  width: 36px; height: 32px;
  border: 1px solid var(--border);
  border-radius: 6px;
  cursor: pointer;
  background: none;
  padding: 2px;
}
select.text-input { width: 100px; cursor: pointer; }

.btn {
  background: var(--accent);
  color: white;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  transition: all 0.15s;
}
.btn:hover { filter: brightness(1.15); box-shadow: 0 0 12px var(--accent-glow); }
.btn-secondary { background: var(--bg-panel-light); }
.btn-secondary:hover { background: #2a5a8a; }
.btn-icon {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 16px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
}
.btn-icon:hover { color: var(--text); background: rgba(255,255,255,0.1); }

/* Main layout */
.main {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* Left panel — effect categories */
.left-panel {
  width: 220px;
  background: var(--bg-dark);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  flex-shrink: 0;
}
.left-panel h3 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
  padding: 12px 16px 8px;
}
.effect-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 0 8px 16px;
}
.effect-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 4px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.15s;
  border: 1px solid transparent;
  background: none;
  color: var(--text-dim);
}
.effect-btn:hover {
  background: var(--bg-panel);
  color: var(--text);
}
.effect-btn.active {
  background: var(--bg-panel-light);
  border-color: var(--accent);
  color: white;
}
.effect-btn canvas {
  width: 48px;
  height: 48px;
  border-radius: 6px;
  margin-bottom: 4px;
  background: #111;
  border: 1px solid var(--border);
}
.effect-btn span { font-size: 10px; text-align: center; line-height: 1.2; }

/* Center — canvas */
.canvas-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  background: var(--bg-darkest);
  position: relative;
  overflow: hidden;
}
.canvas-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 16px;
  background: var(--bg-dark);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.canvas-toolbar .left, .canvas-toolbar .right { display: flex; gap: 8px; align-items: center; }
.bg-btn {
  width: 28px; height: 28px;
  border-radius: 4px;
  border: 1px solid var(--border);
  cursor: pointer;
}
.bg-btn.active { border-color: var(--accent); box-shadow: 0 0 8px var(--accent-glow); }
.canvas-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  padding: 20px;
  position: relative;
}
#mainCanvas {
  max-width: 100%;
  max-height: 100%;
  border-radius: 4px;
  box-shadow: 0 4px 30px rgba(0,0,0,0.5);
}
.checkerboard-bg {
  background-image:
    linear-gradient(45deg, #333 25%, transparent 25%),
    linear-gradient(-45deg, #333 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #333 75%),
    linear-gradient(-45deg, transparent 75%, #333 75%);
  background-size: 20px 20px;
  background-position: 0 0, 0 10px, 10px -10px, -10px 0;
}

/* Right panel — presets + controls */
.right-panel {
  width: 280px;
  background: var(--bg-dark);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
}
.right-panel h3 {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-dim);
  padding: 12px 16px 6px;
  flex-shrink: 0;
}
.preset-list {
  max-height: 260px;
  overflow-y: auto;
  padding: 0 8px 8px;
  flex-shrink: 0;
}
.preset-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.1s;
}
.preset-item:hover { background: var(--bg-panel); }
.preset-item.active { background: var(--bg-panel-light); border-left: 3px solid var(--accent); }
.preset-item canvas {
  width: 44px; height: 44px;
  border-radius: 4px;
  border: 1px solid var(--border);
  flex-shrink: 0;
}
.preset-item span { font-size: 12px; }

.controls {
  flex: 1;
  overflow-y: auto;
  padding: 0 16px 16px;
}
.control-group {
  margin-bottom: 12px;
}
.control-group label {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 4px;
}
.control-group label .val { color: var(--accent); font-weight: 600; }

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: var(--border);
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 0 6px var(--accent-glow);
}

/* Mini preview tooltip */
.preview-tooltip {
  position: fixed;
  z-index: 9999;
  pointer-events: none;
  display: none;
}
.preview-tooltip canvas {
  border-radius: 8px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.6);
  border: 1px solid var(--border);
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #3a4a6e; }

/* Toast */
.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-panel);
  color: white;
  padding: 10px 20px;
  border-radius: var(--radius);
  border: 1px solid var(--accent);
  font-size: 13px;
  z-index: 9999;
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}
.toast.show { opacity: 1; }

/* Status bar */
.statusbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 16px;
  background: var(--bg-dark);
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-dim);
  flex-shrink: 0;
}