:root {
  --bg-dark: #020617;
  --bg-card: #0f172a;
  --accent-blue: #38bdf8;
  --accent-glow: rgba(56, 189, 248, 0.2);
  --text-main: #f8fafc;
  --text-dim: #94a3b8;
  --border: #1e293b;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: 'Inter', system-ui, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
}

header {
  padding: 4rem 2rem 3rem;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.badge-pagination {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 6px 14px;
  background: var(--accent-glow);
  border: 1px solid var(--accent-blue);
  color: var(--accent-blue);
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: 50px;
  margin-bottom: 1.5rem;
}

h1 {
  font-size: 3.5rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  margin-bottom: 0.75rem;
  background: linear-gradient(to right, #fff, var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

p.subtitle {
  color: var(--text-dim);
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto;
}

main {
  max-width: 1300px;
  margin: 0 auto;
  padding: 0 1rem 5rem;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 2rem;
}

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

.config-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2rem;
  height: fit-content;
  position: sticky;
  top: 2rem;
}

.section-title {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 1.25rem;
  letter-spacing: 0.1em;
}

.type-selector {
  display: grid;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.type-btn {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  color: var(--text-main);
  padding: 0.75rem 1rem;
  border-radius: 12px;
  text-align: left;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.type-btn:hover {
  border-color: var(--accent-blue);
  background: rgba(56, 189, 248, 0.05);
}

.type-btn.active {
  background: var(--accent-blue);
  color: #000;
  border-color: var(--accent-blue);
  font-weight: 700;
}

.input-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
}

input, select {
  width: 100%;
  background: #020617;
  border: 1px solid var(--border);
  color: white;
  padding: 0.75rem;
  border-radius: 10px;
  outline: none;
  font-size: 0.9rem;
}

input:focus, select:focus {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 2px var(--accent-glow);
}

.output-container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.code-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.card-header {
  padding: 1rem 1.5rem;
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-header h3 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-blue);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.code-area {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: #e2e8f0;
  white-space: pre;
  overflow-x: auto;
  line-height: 1.7;
}

.btn-copy {
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  color: var(--text-dim);
  padding: 0.4rem 0.8rem;
  border-radius: 8px;
  font-size: 0.7rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-copy:hover {
  background: var(--accent-blue);
  color: #000;
  border-color: var(--accent-blue);
}

/* Syntax Highlighting */
.hl-key { color: #f472b6; }
.hl-type { color: #38bdf8; }
.hl-string { color: #4ade80; }
.hl-keyword { color: #c084fc; }
.hl-comment { color: #64748b; font-style: italic; }

.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--accent-blue);
  color: #000;
  padding: 0.75rem 1.5rem;
  border-radius: 12px;
  font-weight: 700;
  display: none;
  z-index: 1000;
  box-shadow: 0 10px 25px rgba(0,0,0,0.4);
}