:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --secondary: #8b5cf6;
  --success: #10b981;
  --dark: #1f2937;
  --gray: #6b7280;
  --light-gray: #f3f4f6;
  --white: #ffffff;
  --border: #e5e7eb;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background-color: var(--light-gray);
  color: var(--dark);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 100vh;
}
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 20px;
}
header {
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  padding: 2rem 0;
  box-shadow: var(--shadow);
  margin-bottom: 2rem;
}
h1 {
  font-size: 2.5rem;
  text-align: center;
  margin-bottom: 0.5rem;
}
.subtitle {
  text-align: center;
  opacity: 0.9;
  font-size: 1.1rem;
}
.tabs {
  display: flex;
  gap: 10px;
  margin-bottom: 2rem;
  border-bottom: 2px solid var(--border);
  overflow-x: auto;
  overflow-y: hidden;
}
.tab {
  padding: 12px 24px;
  background: none;
  border: none;
  font-size: 1rem;
  font-weight: 500;
  color: var(--gray);
  cursor: pointer;
  position: relative;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.tab:hover {
  color: var(--primary);
}
.tab.active {
  color: var(--primary);
}
.tab.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
}
.tab-content {
  display: none;
  animation: fadeIn 0.3s ease;
}
.tab-content.active {
  display: block;
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.generator-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}
.controls-panel,
.preview-panel {
  background: var(--white);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
}
.panel-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--dark);
}
.control-group {
  margin-bottom: 1.5rem;
}
.control-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--gray);
}
.control-row {
  display: flex;
  align-items: center;
  gap: 1rem;
}
input[type="range"] {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: var(--border);
  outline: none;
  -webkit-appearance: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  transition: all 0.2s ease;
}
input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}
input[type="number"],
input[type="text"],
select {
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}
input[type="number"]:focus,
input[type="text"]:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}
input[type="color"] {
  width: 50px;
  height: 40px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}
.preview-area {
  min-height: 300px;
  background: var(--light-gray);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  position: relative;
  overflow: hidden;
}
.code-panel {
  background: var(--dark);
  color: var(--white);
  border-radius: 8px;
  padding: 1.5rem;
  position: relative;
  max-height: 400px;
  overflow-y: auto;
}
.code-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}
.code-title {
  font-size: 0.9rem;
  opacity: 0.7;
}
.copy-btn {
  background: var(--primary);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9rem;
  transition: all 0.2s ease;
}
.copy-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}
.copy-btn.copied {
  background: var(--success);
}
pre {
  margin: 0;
  font-family: 'Courier New', monospace;
  font-size: 0.9rem;
  line-height: 1.5;
  white-space: pre-wrap;
}
/* Syntax highlighting */
.tag {
  color: #f472b6;
}
.attr {
  color: #60a5fa;
}
.value {
  color: #86efac;
}
.selector {
  color: #fbbf24;
}
.property {
  color: #a78bfa;
}
.comment {
  color: #6b7280;
  font-style: italic;
}
.color-stops {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}
.color-stop {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.75rem;
  background: var(--light-gray);
  border-radius: 8px;
}
.remove-stop {
  background: #ef4444;
  color: white;
  border: none;
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  cursor: pointer;
  font-size: 0.85rem;
}
.add-stop {
  background: var(--success);
  color: white;
  border: none;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  margin-top: 1rem;
  transition: all 0.2s ease;
}
.add-stop:hover {
  transform: translateY(-2px);
}
.shape-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.shape-option {
  padding: 1rem;
  background: var(--light-gray);
  border: 2px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  text-align: center;
  transition: all 0.2s ease;
}
.shape-option:hover {
  border-color: var(--primary);
}
.shape-option.selected {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
}
.text-preview {
  font-size: 3rem;
  font-weight: bold;
  text-align: center;
  padding: 2rem;
}
@media (max-width: 968px) {
  .generator-container {
    grid-template-columns: 1fr;
  }
  h1 {
    font-size: 2rem;
  }
  .tabs {
    flex-wrap: wrap;
  }
}
.notification {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--success);
  color: white;
  padding: 1rem 1.5rem;
  border-radius: 8px;
  box-shadow: var(--shadow-lg);
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 1000;
}
.notification.show {
  transform: translateY(0);
  opacity: 1;
}
footer {
  text-align: center;
  padding: 1.5rem 0;
  color: var(--gray);
  font-size: 0.9rem;
}
/* Filter Generator Styles */
.filter-demo-box {
  width: 200px;
  height: 200px;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  background: var(--white);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.filter-demo-gradient {
  width: 100%;
  height: 120px;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
}
.filter-demo-box span {
  font-weight: 600;
  color: var(--dark);
}
.reset-btn {
  width: 100%;
  background: var(--gray);
  color: white;
  border: none;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  margin-top: 0.5rem;
}
.reset-btn:hover {
  background: var(--dark);
  transform: translateY(-2px);
}
/* Animation Generator Styles */
.animation-selector {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.75rem;
  margin-bottom: 1rem;
}
.animation-option {
  padding: 0.75rem 0.5rem;
  background: var(--light-gray);
  border: 2px solid transparent;
  border-radius: 8px;
  cursor: pointer;
  text-align: center;
  font-size: 0.9rem;
  transition: all 0.2s ease;
}
.animation-option:hover {
  border-color: var(--primary);
}
.animation-option.selected {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
}
.animation-demo-box {
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  box-shadow: var(--shadow-lg);
}
.play-btn {
  width: 100%;
  background: var(--primary);
  color: white;
  border: none;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  transition: all 0.2s ease;
  margin-top: 1rem;
}
.play-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
}
/* Animation Keyframes */
@keyframes fade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
@keyframes slideIn {
  from {
    transform: translateX(-100px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-30px);
  }
  60% {
    transform: translateY(-15px);
  }
}
@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}
@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-10px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(10px);
  }
}
@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}
@keyframes scale {
  0% {
    transform: scale(0);
  }
  100% {
    transform: scale(1);
  }
}
@keyframes flip {
  from {
    transform: perspective(400px) rotateY(0);
  }
  to {
    transform: perspective(400px) rotateY(360deg);
  }
}
@media (max-width: 768px) {
  .animation-selector {
    grid-template-columns: repeat(2, 1fr);
  }
}
/* Border Radius Generator Styles */
.radius-demo-box {
  width: 200px;
  height: 200px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 20px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: all 0.3s ease;
}
.corner-indicator {
  position: absolute;
  font-size: 0.7rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
  padding: 4px 6px;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 4px;
}
.corner-indicator.tl {
  top: 8px;
  left: 8px;
}
.corner-indicator.tr {
  top: 8px;
  right: 8px;
}
.corner-indicator.br {
  bottom: 8px;
  right: 8px;
}
.corner-indicator.bl {
  bottom: 8px;
  left: 8px;
}
.radius-presets {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}
.preset-btn {
  padding: 0.6rem 0.5rem;
  background: var(--light-gray);
  border: 2px solid transparent;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all 0.2s ease;
}
.preset-btn:hover {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.1);
}
.preset-btn.active {
  border-color: var(--primary);
  background: rgba(99, 102, 241, 0.15);
}
@media (max-width: 768px) {
  .radius-presets {
    grid-template-columns: repeat(2, 1fr);
  }
}
/* Flexbox Generator Styles */
.flex-container {
  display: flex;
  flex-direction: row;
  justify-content: flex-start;
  align-items: stretch;
  flex-wrap: nowrap;
  gap: 10px;
  width: 100%;
  min-height: 200px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 12px;
  border: 2px dashed var(--border);
}
.flex-item {
  min-width: 50px;
  min-height: 50px;
  padding: 15px 20px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: white;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  box-shadow: var(--shadow);
}
/* CSS Grid Generator Styles */
.grid-container {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, 1fr);
  gap: 10px;
  width: 100%;
  min-height: 200px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.5);
  border-radius: 12px;
  border: 2px dashed var(--border);
}
.grid-item {
  min-height: 60px;
  padding: 15px;
  background: linear-gradient(135deg, #10b981, #059669);
  color: white;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  box-shadow: var(--shadow);
}