:root {
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --bg-main: #0f172a;
  --bg-card: #1e293b;
  --bg-input: #0f172a;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border: #334155;
  --accent-cyan: #06b6d4;
  --accent-purple: #a855f7;
  --glass: rgba(30, 41, 59, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --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: var(--font-sans);
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Background Gradients */
.bg-blobs {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: -1;
  overflow: hidden;
}

.blob {
  position: absolute;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.15;
  animation: float 20s infinite alternate;
}

.blob-1 {
  background: var(--primary);
  top: -100px;
  right: -100px;
}

.blob-2 {
  background: var(--accent-purple);
  bottom: -100px;
  left: -100px;
  animation-delay: -5s;
}

@keyframes float {
  from { transform: translate(0, 0) scale(1); }
  to { transform: translate(100px, 50px) scale(1.1); }
}

header {
  padding: 2rem 1rem;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

h1 {
  font-size: 3rem;
  font-weight: 800;
  background: linear-gradient(to right, #fff, var(--primary), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
  letter-spacing: -0.025em;
}

header p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 1rem 4rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

@media (max-width: 1024px) {
  main {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 1.5rem;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.card-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.03);
}

.card-header h2 {
  font-size: 1.1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-body {
  padding: 1.5rem;
  flex-grow: 1;
}

textarea, .code-display {
  width: 100%;
  height: 500px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  color: #e2e8f0;
  font-family: 'Fira Code', 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  padding: 1.25rem;
  resize: none;
  outline: none;
  transition: border-color 0.2s;
}

textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.code-display {
  overflow-y: auto;
  white-space: pre;
  position: relative;
}

.controls {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.setting-group {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  border: 1px solid var(--glass-border);
}

.switch {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 20px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #475569;
  transition: .4s;
  border-radius: 34px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 14px;
  width: 14px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .4s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--primary);
}

input:checked + .slider:before {
  transform: translateX(16px);
}

.btn {
  padding: 0.6rem 1.25rem;
  border-radius: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.btn-primary {
  background: var(--primary);
  color: white;
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.05);
  color: white;
}

.badge {
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
}

.badge-ts { background: #3178c6; color: white; }
.badge-zod { background: #3068b7; color: white; }

.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.tab {
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  cursor: pointer;
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: all 0.2s;
}

.tab.active {
  background: rgba(99, 102, 241, 0.1);
  color: var(--primary);
  font-weight: 600;
}

.copy-toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: white;
  padding: 0.75rem 2rem;
  border-radius: 2rem;
  font-weight: 600;
  box-shadow: 0 10px 25px rgba(0,0,0,0.3);
  display: none;
  z-index: 1000;
}

.syntax-keyword { color: #c678dd; }
.syntax-string { color: #98c379; }
.syntax-type { color: #e5c07b; }
.syntax-fn { color: #61afef; }
.syntax-comment { color: #5c6370; font-style: italic; }

footer {
  text-align: center;
  padding: 4rem 2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}