client/src/index.css

@tailwind base;
@tailwind components;
@tailwind utilities;

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

  body {
    font-family: 'Inter', system-ui, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  ::-webkit-scrollbar {
    width: 6px;
    height: 6px;
  }

  ::-webkit-scrollbar-track {
    background: transparent;
  }

  ::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.3);
    border-radius: 3px;
  }

  ::-webkit-scrollbar-thumb:hover {
    background: rgba(148, 163, 184, 0.5);
  }
}

@layer components {
  .btn {
    @apply inline-flex items-center justify-center gap-2 px-4 py-2 rounded-lg font-medium text-sm
      transition-all duration-200 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-offset-surface-900
      disabled:opacity-50 disabled:cursor-not-allowed;
  }

  .btn-primary {
    @apply btn bg-primary-600 hover:bg-primary-500 text-white focus:ring-primary-500;
  }

  .btn-secondary {
    @apply btn bg-surface-700 hover:bg-surface-600 text-surface-100 focus:ring-surface-500;
  }

  .btn-ghost {
    @apply btn bg-transparent hover:bg-surface-800 text-surface-300 hover:text-white;
  }

  .btn-danger {
    @apply btn bg-red-600 hover:bg-red-500 text-white focus:ring-red-500;
  }

  .input {
    @apply w-full px-3 py-2 bg-surface-800 border border-surface-700 rounded-lg text-white text-sm
      placeholder:text-surface-400 focus:outline-none focus:ring-2 focus:ring-primary-500 focus:border-transparent
      transition-all duration-200;
  }

  .card {
    @apply bg-surface-800 border border-surface-700 rounded-xl p-6;
  }

  .panel {
    @apply bg-surface-900 border-r border-surface-700;
  }

  .badge {
    @apply inline-flex items-center px-2 py-0.5 rounded-full text-xs font-medium;
  }

  .badge-web { @apply badge bg-blue-500/20 text-blue-300; }
  .badge-electron { @apply badge bg-cyan-500/20 text-cyan-300; }
  .badge-maui { @apply badge bg-purple-500/20 text-purple-300; }
  .badge-nodejs { @apply badge bg-green-500/20 text-green-300; }
}

@layer utilities {
  .text-gradient {
    @apply bg-clip-text text-transparent bg-gradient-to-r from-primary-400 to-purple-400;
  }

  .glass {
    @apply bg-surface-800/80 backdrop-blur-sm;
  }
}

/* Block node styles */
.block-node {
  position: relative;
  min-width: 160px;
  max-width: 260px;
  display: flex;
  flex-direction: column;
  cursor: pointer;
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 12px;
  font-weight: 500;
  color: #fff;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.25);
  user-select: none;
}

.block-node:hover {
  filter: brightness(1.08);
}

.block-selected {
  filter: brightness(1.15) drop-shadow(0 0 8px rgba(255, 255, 255, 0.5));
}

/* Hat block: rounded top with bump, flat-ish bottom */
.block-shape-hat {
  border-top-left-radius: 14px;
  border-top-right-radius: 14px;
  border-bottom-left-radius: 4px;
  border-bottom-right-radius: 4px;
  padding: 4px 0 8px 0;
}

.block-shape-hat::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 8px;
  background: var(--block-color, #6366f1);
  border-radius: 6px 6px 0 0;
  z-index: 0;
}

/* Stack block: notch on top, bump on bottom */
.block-shape-stack {
  border-radius: 4px;
  padding: 0;
  margin: 4px 0;
}

.block-shape-stack::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 4px;
  background: #0a0f1a;
  border-radius: 0 0 4px 4px;
  z-index: 2;
}

.block-shape-stack::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 4px;
  background: var(--block-color, #6366f1);
  border-radius: 0 0 4px 4px;
  z-index: 2;
}

/* Boolean block: hexagon/diamond shape */
.block-shape-boolean {
  clip-path: polygon(8px 0%, calc(100% - 8px) 0%, 100% 50%, calc(100% - 8px) 100%, 8px 100%, 0% 50%);
  padding: 4px 18px;
  min-width: 100px;
  max-width: 200px;
}

/* Reporter block: pill/oval shape */
.block-shape-reporter {
  border-radius: 999px;
  padding: 3px 4px;
  min-width: 80px;
  max-width: 200px;
  display: inline-flex;
  flex-direction: row;
  align-items: center;
}

/* C-block: stack shape with inner cavity */
.block-shape-cblock {
  border-radius: 4px 4px 4px 4px;
  padding: 0;
  margin: 4px 0;
}

.block-shape-cblock::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 4px;
  background: #0a0f1a;
  border-radius: 0 0 4px 4px;
  z-index: 2;
}

.block-shape-cblock::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 4px;
  background: var(--block-color, #6366f1);
  border-radius: 0 0 4px 4px;
  z-index: 2;
}

/* Cap block: flat top, rounded bottom */
.block-shape-cap {
  border-top-left-radius: 2px;
  border-top-right-radius: 2px;
  border-bottom-left-radius: 8px;
  border-bottom-right-radius: 8px;
  padding: 4px 0 2px 0;
}

.block-shape-cap::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 16px;
  height: 4px;
  background: var(--block-color, #6366f1);
  border-radius: 0 0 4px 4px;
  z-index: 2;
}

/* Block body (main content area) */
.block-body {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  align-items: center;
  gap: 3px;
  padding: 5px 8px;
  position: relative;
  z-index: 1;
}

.block-shape-hat .block-body {
  padding: 6px 10px 4px 10px;
}

.block-shape-cblock > .block-body {
  padding: 5px 8px 6px 8px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.15);
}

.block-shape-cap .block-body {
  padding: 4px 10px 3px 10px;
}

.block-shape-reporter .block-body {
  padding: 3px 6px;
  gap: 4px;
}

/* Block label text */
.block-label {
  font-weight: 500;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.95);
  white-space: nowrap;
}

/* Block icon */
.block-icon {
  font-size: 12px;
  margin-right: 2px;
  opacity: 0.9;
}

/* Input slot - default style (text input pill) */
.block-input {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  min-height: 18px;
  min-width: 28px;
  background: rgba(255, 255, 255, 0.95);
  color: #1e293b;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 600;
  text-shadow: none;
  border: 1px solid rgba(0, 0, 0, 0.15);
  box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.08);
  white-space: nowrap;
  cursor: text;
}

.block-input.text-input {
  min-width: 36px;
}

.block-input.number-input {
  min-width: 22px;
  border-radius: 50%;
  padding: 0 4px;
  font-size: 10px;
}

.block-input.select-input {
  background: rgba(255, 255, 255, 0.95);
  color: #1e293b;
  position: relative;
  padding-right: 16px;
}

.block-input.select-input::after {
  content: '▼';
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 7px;
  color: #1e293b;
}

.block-input.boolean-input {
  background: rgba(255, 255, 255, 0.95);
  color: #1e293b;
  border-radius: 4px;
  min-width: 32px;
}

.block-input.color-input {
  padding: 0;
  width: 16px;
  height: 16px;
  min-width: 16px;
  border-radius: 50%;
  border: 1px solid rgba(0, 0, 0, 0.2);
}

.block-input.empty {
  background: rgba(255, 255, 255, 0.3);
  color: rgba(255, 255, 255, 0.6);
  border: 1px dashed rgba(255, 255, 255, 0.5);
  text-shadow: none;
  font-style: italic;
  font-weight: 400;
}

.block-input.boolean-slot {
  background: transparent;
  border: 1px dashed rgba(255, 255, 255, 0.7);
  color: rgba(255, 255, 255, 0.7);
  border-radius: 4px;
  text-shadow: none;
  font-style: italic;
  font-weight: 400;
}

.block-input.reporter-slot {
  background: transparent;
  border: 1px dashed rgba(255, 255, 255, 0.7);
  color: rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  text-shadow: none;
  font-style: italic;
  font-weight: 400;
}

/* C-block inner cavity */
.block-cavity {
  min-height: 36px;
  margin: 0 8px 8px 8px;
  padding: 4px;
  background: rgba(0, 0, 0, 0.18);
  border-radius: 3px;
  position: relative;
  z-index: 1;
  border: 1px dashed rgba(255, 255, 255, 0.2);
}

.block-cavity-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  font-size: 10px;
  font-style: italic;
  color: rgba(255, 255, 255, 0.5);
  text-shadow: none;
  font-weight: 400;
}

/* React Flow overrides - hide default node chrome */
.react-flow__node-blockNode {
  padding: 0;
  border: none;
  background: transparent;
  width: auto;
  font-size: 0;
}

.react-flow__node-blockNode.selected {
  box-shadow: none;
}

.react-flow__handle {
  width: 0 !important;
  height: 0 !important;
  min-width: 0 !important;
  min-height: 0 !important;
  border: none !important;
  background: transparent !important;
  opacity: 0 !important;
  pointer-events: none;
}

/* Snap highlight when dragging a block near another */
.block-snap-highlight {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% + 8px);
  height: 6px;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 3px;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.8);
  pointer-events: none;
  z-index: 100;
}

.block-snap-highlight.top {
  top: -10px;
}

.block-snap-highlight.bottom {
  bottom: -10px;
}

/* Palette tab styles (Scratch-style colored circles) */
.palette-tabs {
  display: flex;
  flex-direction: column;
  width: 56px;
  flex-shrink: 0;
  background: #0f172a;
  border-right: 1px solid rgba(148, 163, 184, 0.15);
  overflow-y: auto;
  padding: 6px 0;
  align-items: center;
}

.palette-tab {
  width: 44px;
  height: 44px;
  margin: 2px 0;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 18px;
  transition: all 0.15s ease;
  border: 2px solid transparent;
  position: relative;
  color: #fff;
}

.palette-tab:hover {
  transform: scale(1.08);
}

.palette-tab-active {
  border-color: #fff;
  box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.3), 0 4px 12px rgba(0, 0, 0, 0.4);
}

.palette-tab-label {
  display: none;
  position: absolute;
  left: 56px;
  top: 50%;
  transform: translateY(-50%);
  background: #1e293b;
  color: #f1f5f9;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 11px;
  white-space: nowrap;
  z-index: 50;
  border: 1px solid rgba(148, 163, 184, 0.2);
  pointer-events: none;
  font-weight: 500;
}

.palette-tab:hover .palette-tab-label {
  display: block;
}

.palette-block-list {
  width: 220px;
  flex-shrink: 0;
  background: #1a1f2e;
  border-right: 1px solid rgba(148, 163, 184, 0.15);
  overflow-y: auto;
  padding: 8px 6px;
}

.palette-category-header {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 6px 4px 4px;
  margin-bottom: 4px;
}

.palette-block-item {
  display: block;
  margin: 4px 0;
  cursor: grab;
  transition: transform 0.1s ease, filter 0.1s ease;
}

.palette-block-item:hover {
  transform: translateX(2px);
  filter: brightness(1.1);
}

.palette-block-item:active {
  cursor: grabbing;
  transform: scale(0.97);
}

/* Compact palette block - smaller version of full block */
.palette-block-compact {
  position: relative;
  background: var(--block-color, #6366f1);
  color: #fff;
  font-size: 10px;
  font-weight: 500;
  padding: 4px 8px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.25);
  box-shadow: 0 2px 0 rgba(0, 0, 0, 0.2);
  white-space: nowrap;
  overflow: hidden;
}

.palette-block-compact.reporter {
  border-radius: 999px;
  padding: 3px 8px;
}

.palette-block-compact.boolean {
  clip-path: polygon(6px 0%, calc(100% - 6px) 0%, 100% 50%, calc(100% - 6px) 100%, 6px 100%, 0% 50%);
  padding: 3px 14px;
  text-align: center;
}

.palette-block-compact.hat {
  border-radius: 12px 12px 4px 4px;
  padding: 4px 8px 3px;
}

.palette-block-compact.cap {
  border-radius: 2px 2px 8px 8px;
  padding: 4px 8px 3px;
}

.palette-block-compact .palette-input {
  background: rgba(255, 255, 255, 0.95);
  color: #1e293b;
  border-radius: 999px;
  padding: 1px 6px;
  font-size: 9px;
  font-weight: 600;
  text-shadow: none;
  white-space: nowrap;
  max-width: 80px;
  overflow: hidden;
  text-overflow: ellipsis;
}