* {
  box-sizing: border-box;
}

:root {
  --bg: #fafafa;
  --bg-secondary: #ffffff;
  --text: #171717;
  --text-secondary: #737373;
  --border: #e5e5e5;
  --primary: #000000;
  --accent: #2563eb;
  --danger: #dc2626;
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  --radius: 6px;
  --header-height: 56px;
  --transition: all 0.15s ease;
}

body {
  margin: 0;
  padding: 0;
  width: 100vw;
  height: 100vh;
  font-family: "Inter", sans-serif;
  -webkit-font-smoothing: antialiased;
  background-color: var(--bg);
  color: var(--text);
  overflow: hidden;
}

/* Header */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 1rem;
  z-index: 100;
}

.header-left,
.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
}

.logo:hover {
  color: var(--primary);
}

/* Buttons */
button {
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 0.875rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background-color: var(--bg-secondary);
  color: var(--text);
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

button:hover {
  background-color: var(--bg);
}

button:active {
  transform: scale(0.98);
}

.btn-secondary {
  background-color: transparent;
}

.btn-danger {
  color: var(--danger);
}

.btn-danger:hover {
  background-color: var(--danger);
  color: white;
  border-color: var(--danger);
}

/* Container */
.container {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
}

/* Canvas */
#canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg-secondary);
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 20px 20px;
}

/* Layers Panel */
.layers {
  position: absolute;
  top: 1rem;
  left: 1rem;
  width: 240px;
  max-height: calc(100% - 2rem);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.panel-header {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border);
}

.panel-header h3 {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.layers-content {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem;
}

.layers ul {
  list-style: none;
  padding-left: 1rem;
  margin: 0;
}

.layers ul:first-child {
  padding-left: 0;
}

.layer-item {
  cursor: pointer;
  padding: 0.4rem 0.6rem;
  border-radius: 4px;
  transition: var(--transition);
  user-select: none;
  display: block;
  margin: 2px 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.layer-item:hover {
  background-color: var(--bg);
  color: var(--text);
}

.layer-item.selected {
  background-color: var(--primary);
  color: white;
}

.layer-item.hovered {
  background-color: rgba(37, 99, 235, 0.12);
  color: var(--text);
}

.layer-item.selected.hovered {
  background-color: var(--primary);
  color: white;
}

/* Tools Section */
.tools-section {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 1rem;
  z-index: 50;
}

.tools-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.divider {
  width: 1px;
  height: 20px;
  background-color: var(--border);
  margin: 0 0.25rem;
}

/* Tool Select */
.tool-select {
  font-family: inherit;
  font-size: 0.875rem;
  padding: 0.5rem 2rem 0.5rem 0.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background-color: var(--bg-secondary);
  color: var(--text);
  cursor: pointer;
  transition: var(--transition);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='12' viewBox='0 0 12 12' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M3 4.5L6 7.5L9 4.5' stroke='%23737373' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.5rem center;
  min-width: 130px;
}

.tool-select:hover {
  background-color: var(--bg);
}

.tool-select:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Color Picker */
.color-picker-wrapper {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.color-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.color-input {
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  padding: 3px;
}

.color-input:hover {
  border-color: var(--text-secondary);
}

.color-input::-webkit-color-swatch-wrapper {
  padding: 0;
}

.color-input::-webkit-color-swatch {
  border: none;
  border-radius: 3px;
}

/* Scrollbar */
.layers-content::-webkit-scrollbar {
  width: 6px;
}

.layers-content::-webkit-scrollbar-track {
  background: transparent;
}

.layers-content::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

.layers-content::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
  .logo span {
    display: none;
  }

  .layers {
    width: 200px;
  }
}

/* Color Palette Panel */
.color-palette-panel {
  position: fixed;
  right: 1rem;
  top: calc(var(--header-height) + 1rem);
  z-index: 50;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.5rem 0.625rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  min-width: 160px;
}

.cp-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.cp-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.cp-swatches {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}

.cp-swatch {
  width: 20px;
  height: 20px;
  min-width: 20px;
  border-radius: 3px;
  border: 1px solid rgba(0, 0, 0, 0.12);
  background-color: var(--swatch-color);
  cursor: pointer;
  padding: 0;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.cp-swatch:hover {
  transform: scale(1.25);
  box-shadow: 0 0 0 2px var(--accent);
  background-color: var(--swatch-color);
}

.cp-swatch:active {
  transform: scale(1.1);
}

/* Made with Bob */