@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=IBM+Plex+Sans:wght@300;400;500;600;700&display=swap');

:root {
  --font-display: 'Space Mono', monospace;
  --font-body: 'IBM Plex Sans', sans-serif;
  --bg: #0a0a0a;
  --bg-card: #141414;
  --bg-hover: #1a1a1a;
  --text: #e8e8e8;
  --text-muted: #888;
  --border: #222;
  --radius: 6px;
  --accent: #8B5CF6;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: var(--font-body); background: var(--bg); color: var(--text); line-height: 1.6; }
h1, h2, h3 { font-family: var(--font-display); }

/* Nav */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--border);
  max-width: 1200px;
  margin: 0 auto;
}
nav .brand {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
}
nav .nav-links { display: flex; gap: 1.5rem; list-style: none; }
nav .nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}
nav .nav-links a:hover { color: var(--text); }

/* Hero */
.hero {
  text-align: center;
  padding: 2rem 2rem 1rem;
  max-width: 800px;
  margin: 0 auto;
}
.hero h1 { font-size: 2rem; margin-bottom: 0.5rem; }
.hero p { color: var(--text-muted); font-size: 1.1rem; }

/* Playground Layout */
.playground {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  max-width: 1200px;
  margin: 1.5rem auto;
  padding: 0 2rem;
}
.panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.panel h2 {
  font-size: 0.95rem;
  font-family: var(--font-display);
  margin-bottom: 1rem;
  color: var(--accent);
}

/* Form Controls */
.form-group { margin-bottom: 1rem; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.3rem;
}
.form-group select,
.form-group input[type="text"],
.form-group input[type="password"],
.form-group textarea {
  width: 100%;
  padding: 0.55rem 0.7rem;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
}
.form-group select:focus,
.form-group input:focus,
.form-group textarea:focus { border-color: var(--accent); }
.form-group textarea { min-height: 80px; resize: vertical; font-family: var(--font-display); font-size: 0.85rem; }
.form-group .slider-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.form-group input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
}
.form-group .slider-value {
  font-family: var(--font-display);
  font-size: 0.85rem;
  min-width: 35px;
  text-align: right;
}

/* Buttons */
.btn {
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
  font-size: 0.85rem;
  font-family: var(--font-body);
  transition: all 0.2s;
}
.btn:hover { border-color: var(--accent); }
.btn-accent {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  font-weight: 600;
}
.btn-accent:hover { opacity: 0.9; }
.btn-sm { padding: 0.3rem 0.6rem; font-size: 0.8rem; }

/* Tabs */
.tab-bar {
  display: flex;
  gap: 0;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}
.tab {
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
  background: none;
  border-top: none;
  border-left: none;
  border-right: none;
  font-family: var(--font-body);
}
.tab:hover { color: var(--text); }
.tab.active { color: var(--accent); border-bottom-color: var(--accent); }

/* Code Block */
.code-block-wrapper {
  position: relative;
  margin-bottom: 0.5rem;
}
.code-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  line-height: 1.6;
  overflow-x: auto;
  white-space: pre-wrap;
  word-break: break-all;
  max-height: 400px;
  overflow-y: auto;
}
.code-block .kw { color: #c084fc; }
.code-block .str { color: #86efac; }
.code-block .num { color: #fbbf24; }
.code-block .comment { color: #555; }
.code-block .func { color: #67e8f9; }
.code-block .prop { color: #f9a8d4; }
.copy-btn {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  z-index: 2;
}

/* Try It Section */
.try-section {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}
.try-section h3 {
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  color: var(--accent);
}
.response-area {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  font-family: var(--font-display);
  font-size: 0.8rem;
  line-height: 1.6;
  max-height: 300px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-word;
  display: none;
}
.response-area.visible { display: block; }
.status-msg {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}
.status-msg.error { color: #ef4444; }

/* Preset dropdown */
.preset-row {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  align-items: center;
}
.preset-row label { font-size: 0.85rem; color: var(--text-muted); white-space: nowrap; }
.preset-row select { flex: 1; }

/* Footer */
footer {
  max-width: 1200px;
  margin: 3rem auto 0;
  padding: 2rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}
footer a { color: var(--accent); text-decoration: none; }
footer a:hover { text-decoration: underline; }

/* Blog / Pages */
.page-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem;
}
.page-content h1 { font-size: 1.8rem; margin-bottom: 1rem; }
.page-content h2 { font-size: 1.3rem; margin: 2rem 0 0.75rem; }
.page-content p { margin-bottom: 1rem; }
.page-content a { color: var(--accent); text-decoration: none; }
.page-content a:hover { text-decoration: underline; }
.page-content ul, .page-content ol { margin: 0 0 1rem 1.5rem; }
.page-content li { margin-bottom: 0.5rem; }
.page-content code {
  background: var(--bg-card);
  padding: 0.15rem 0.4rem;
  border-radius: 3px;
  font-family: var(--font-display);
  font-size: 0.85rem;
}
.page-content pre {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  overflow-x: auto;
  margin-bottom: 1rem;
}
.page-content pre code { background: none; padding: 0; }
.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1rem;
  transition: border-color 0.2s;
}
.blog-card:hover { border-color: var(--accent); }
.blog-card h2 { margin: 0 0 0.5rem; font-size: 1.2rem; }
.blog-card h2 a { color: var(--text); text-decoration: none; }
.blog-card h2 a:hover { color: var(--accent); }
.blog-card .meta { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 0.5rem; }
.blog-card .excerpt { color: var(--text-muted); font-size: 0.95rem; }

/* Pricing Estimator */
.pricing-section {
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}
.pricing-header, .monthly-header {
  font-family: var(--font-display);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}
.monthly-header { margin-top: 1rem; }
.pricing-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  margin-bottom: 0.5rem;
}
.pricing-table th {
  text-align: left;
  padding: 0.4rem 0.5rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 500;
  border-bottom: 1px solid var(--border);
}
.pricing-table td {
  padding: 0.4rem 0.5rem;
  border-bottom: 1px solid rgba(34,34,34,0.5);
}
.cost-val {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--accent);
}
.daily-slider-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.75rem;
}
.daily-slider-row label {
  font-size: 0.85rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.daily-slider-row input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
}

/* FAQ Section */
.faq-section {
  max-width: 900px;
  margin: 3rem auto 0;
  padding: 0 2rem;
}
.faq-section h2 {
  font-size: 1.3rem;
  margin-bottom: 1.5rem;
  text-align: center;
}
.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
}
.faq-item:first-of-type { border-top: 1px solid var(--border); }
.faq-q {
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-q::after { content: '+'; color: var(--accent); font-size: 1.2rem; }
.faq-item.open .faq-q::after { content: '\2212'; }
.faq-a {
  display: none;
  color: var(--text-muted);
  font-size: 0.95rem;
  padding-top: 0.5rem;
  line-height: 1.6;
}
.faq-item.open .faq-a { display: block; }

/* Responsive */
@media (max-width: 768px) {
  .playground {
    grid-template-columns: 1fr;
    padding: 0 1rem;
  }
  nav { padding: 1rem; }
  .hero { padding: 1.5rem 1rem 0.75rem; }
  .hero h1 { font-size: 1.5rem; }
  .page-content { padding: 1.5rem 1rem; }
}