@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: #D97706;
}

* { 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: 3rem 2rem 1.5rem;
  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; }

/* Search + Filters */
.toolbar {
  max-width: 900px;
  margin: 1.5rem auto;
  padding: 0 2rem;
}
.search-box {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-size: 1rem;
  font-family: var(--font-body);
  outline: none;
  transition: border-color 0.2s;
}
.search-box:focus { border-color: var(--accent); }
.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
}
.chip {
  padding: 0.35rem 0.85rem;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
  user-select: none;
}
.chip:hover { border-color: var(--accent); color: var(--text); }
.chip.active {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
  font-weight: 600;
}

/* Prompt Grid */
.prompt-grid {
  max-width: 900px;
  margin: 1.5rem auto;
  padding: 0 2rem;
  display: grid;
  gap: 1rem;
}
.prompt-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  position: relative;
}
.prompt-card:hover { border-color: var(--accent); background: var(--bg-hover); }
.prompt-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}
.prompt-card-header h3 {
  font-size: 1rem;
  font-weight: 600;
  font-family: var(--font-body);
}
.prompt-card .category-tag {
  font-size: 0.75rem;
  padding: 0.2rem 0.5rem;
  background: rgba(217,119,6,0.15);
  color: var(--accent);
  border-radius: 4px;
  font-weight: 500;
}
.prompt-card .description {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}
.prompt-card .prompt-text {
  display: none;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  font-family: var(--font-display);
  font-size: 0.85rem;
  line-height: 1.5;
  white-space: pre-wrap;
  margin-bottom: 0.75rem;
  max-height: 300px;
  overflow-y: auto;
}
.prompt-card.expanded .prompt-text { display: block; }
.prompt-actions {
  display: none;
  gap: 0.5rem;
  align-items: center;
}
.prompt-card.expanded .prompt-actions { display: flex; }
.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: #000;
  border-color: var(--accent);
  font-weight: 600;
}
.btn-accent:hover { opacity: 0.9; }
.star-btn {
  background: none;
  border: none;
  font-size: 1.2rem;
  cursor: pointer;
  color: var(--text-muted);
  padding: 0.25rem;
  transition: color 0.2s;
}
.star-btn.favorited { color: var(--accent); }
.copied-feedback {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 500;
  opacity: 0;
  transition: opacity 0.3s;
}
.copied-feedback.show { opacity: 1; }

/* Footer */
footer {
  max-width: 1200px;
  margin: 4rem 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 */
.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; color: var(--text); }
.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;
  color: var(--text);
}
.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; }

/* Token Counter + Model Recommender */
.token-panel {
  display: none;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  margin-bottom: 0.75rem;
}
.prompt-card.expanded .token-panel { display: block; }
.token-header {
  font-family: var(--font-display);
  font-size: 0.75rem;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}
.token-stats {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.75rem;
}
.token-badge {
  font-size: 0.8rem;
  padding: 0.2rem 0.6rem;
  background: rgba(217,119,6,0.12);
  color: var(--accent);
  border-radius: 4px;
  font-weight: 500;
}
.model-rec {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.model-option {
  flex: 1;
  min-width: 140px;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.85rem;
  position: relative;
}
.model-option.recommended {
  border-color: var(--accent);
  background: rgba(217,119,6,0.08);
}
.model-option strong {
  display: block;
  font-size: 0.8rem;
  margin-bottom: 0.2rem;
}
.model-cost {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--text-muted);
}
.rec-badge {
  position: absolute;
  top: -8px;
  right: 8px;
  font-size: 0.65rem;
  padding: 0.1rem 0.4rem;
  background: var(--accent);
  color: #000;
  border-radius: 3px;
  font-weight: 600;
}
.rec-reason {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
}

/* 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;
  color: var(--text);
  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: 640px) {
  nav { padding: 1rem; }
  .hero { padding: 2rem 1rem 1rem; }
  .hero h1 { font-size: 1.5rem; }
  .toolbar, .prompt-grid { padding: 0 1rem; }
  .page-content { padding: 1.5rem 1rem; }
}