/* AgentGrow Blog — Dark Theme */
/* Design tokens from agentgrow.io tailwind.config */

:root {
  --obsidian: #050505;
  --white: #ffffff;
  --zinc-300: #d4d4d8;
  --zinc-400: #a1a1aa;
  --zinc-500: #71717a;
  --zinc-600: #52525b;
  --lime: #ADFA1D;
  --sky: #38BDF8;
  --purple: #c084fc;
  --amber: #fbbf24;
  --glass-bg: rgba(255,255,255,0.03);
  --glass-border: rgba(255,255,255,0.05);
  --border-subtle: rgba(255,255,255,0.1);
}

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

html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background: var(--obsidian);
  color: var(--zinc-400);
  line-height: 1.6;
  min-height: 100vh;
}

a { color: var(--sky); text-decoration: none; transition: color 0.2s; }
a:hover { color: var(--white); }

img { max-width: 100%; height: auto; }

/* ── Layout ──────────────────────────────────────────── */

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

.container-narrow {
  max-width: 768px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* ── Site Header ─────────────────────────────────────── */

.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border-subtle);
  background: rgba(5,5,5,0.8);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.site-header .inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.site-header .logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--white);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.125rem;
}

.site-header .logo-icon {
  width: 32px; height: 32px;
  background: var(--lime);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-header .logo-icon svg { width: 20px; height: 20px; color: var(--obsidian); }

.site-header nav { display: flex; align-items: center; gap: 2rem; }
.site-header nav a { color: var(--zinc-400); font-size: 0.875rem; }
.site-header nav a:hover { color: var(--white); }

.site-header .cta-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.375rem 1rem;
  background: var(--lime);
  color: var(--obsidian);
  font-weight: 700;
  font-size: 0.875rem;
  border-radius: 6px;
  text-decoration: none;
  transition: opacity 0.2s;
}

.site-header .cta-btn:hover { opacity: 0.9; color: var(--obsidian); }

/* ── Site Footer ─────────────────────────────────────── */

.site-footer {
  border-top: 1px solid var(--border-subtle);
  background: var(--obsidian);
  padding: 3rem 0;
}

.site-footer .inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
}

.site-footer .brand p { font-size: 0.875rem; color: var(--zinc-400); max-width: 280px; line-height: 1.6; }
.site-footer .brand .addr { font-size: 0.75rem; color: var(--zinc-500); margin-top: 1rem; }
.site-footer .brand .copy { font-size: 0.75rem; color: var(--zinc-600); margin-top: 0.5rem; }

.site-footer h3 { font-size: 0.875rem; font-weight: 600; color: var(--white); margin-bottom: 0.75rem; }
.site-footer ul { list-style: none; }
.site-footer ul li { margin-bottom: 0.5rem; }
.site-footer ul a { font-size: 0.875rem; color: var(--zinc-400); }
.site-footer ul a:hover { color: var(--white); }

@media (max-width: 768px) {
  .site-footer .inner { grid-template-columns: 1fr; }
}

/* ── Hero ────────────────────────────────────────────── */

.hero {
  border-bottom: 1px solid var(--glass-border);
  padding: 7rem 1rem 3rem;
  text-align: center;
}

.hero .tag {
  color: var(--lime);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 1rem;
}

.hero .subtitle {
  color: var(--zinc-400);
  font-size: 1.125rem;
  max-width: 560px;
  margin: 0 auto;
}

/* ── Category Badges ─────────────────────────────────── */

.badge {
  display: inline-block;
  padding: 0.125rem 0.625rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid;
}

.badge-platform    { color: var(--lime);   border-color: rgba(173,250,29,0.3);  background: rgba(173,250,29,0.08); }
.badge-getting-started { color: var(--sky);  border-color: rgba(56,189,248,0.3); background: rgba(56,189,248,0.08); }
.badge-how-to      { color: var(--purple); border-color: rgba(192,132,252,0.3); background: rgba(192,132,252,0.08); }
.badge-strategy    { color: var(--amber);  border-color: rgba(251,191,36,0.3);  background: rgba(251,191,36,0.08); }

/* ── Card Grid ───────────────────────────────────────── */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 1.5rem;
  padding: 3rem 0;
}

.card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  padding: 1.5rem;
  transition: border-color 0.3s, transform 0.2s;
  display: flex;
  flex-direction: column;
}

.card:hover {
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-2px);
}

.card .card-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: auto;
  padding-top: 1rem;
  font-size: 0.75rem;
  color: var(--zinc-500);
}

.card h2 {
  color: var(--white);
  font-size: 1.125rem;
  font-weight: 600;
  margin: 0.75rem 0 0.5rem;
  line-height: 1.4;
}

.card h2 a { color: var(--white); }
.card h2 a:hover { color: var(--lime); }

.card .excerpt {
  color: var(--zinc-400);
  font-size: 0.875rem;
  line-height: 1.6;
  flex: 1;
}

/* ── Filter Buttons ──────────────────────────────────── */

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  padding: 2rem 0 0;
}

.filter-btn {
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  font-size: 0.8125rem;
  font-weight: 500;
  border: 1px solid var(--glass-border);
  background: transparent;
  color: var(--zinc-400);
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn:hover { border-color: rgba(255,255,255,0.15); color: var(--white); }

.filter-btn.active {
  background: var(--lime);
  color: var(--obsidian);
  border-color: var(--lime);
  font-weight: 700;
}

/* ── CTA Section ─────────────────────────────────────── */

.cta-section {
  border-top: 1px solid var(--glass-border);
  padding: 5rem 1rem;
  text-align: center;
}

.cta-section h2 { color: var(--white); font-size: 1.5rem; font-weight: 700; margin-bottom: 0.75rem; }
.cta-section p { color: var(--zinc-400); max-width: 28rem; margin: 0 auto 2rem; }

.btn-lime {
  display: inline-block;
  padding: 0.75rem 2rem;
  background: var(--lime);
  color: var(--obsidian);
  font-weight: 700;
  border-radius: 8px;
  text-decoration: none;
  transition: opacity 0.2s;
}

.btn-lime:hover { opacity: 0.9; color: var(--obsidian); }

.btn-outline {
  display: inline-block;
  padding: 0.75rem 2rem;
  border: 1px solid rgba(173,250,29,0.3);
  color: var(--lime);
  border-radius: 8px;
  text-decoration: none;
  transition: border-color 0.2s;
}

.btn-outline:hover { border-color: rgba(173,250,29,0.6); color: var(--lime); }

/* ── Article Layout ──────────────────────────────────── */

.article-header {
  border-bottom: 1px solid var(--glass-border);
  padding: 7rem 1rem 3rem;
}

.article-header .breadcrumb {
  font-size: 0.875rem;
  color: var(--zinc-500);
  margin-bottom: 1.5rem;
}

.article-header .breadcrumb a { color: var(--zinc-400); }
.article-header .breadcrumb a:hover { color: var(--white); }

.article-header h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.75rem;
  line-height: 1.3;
}

.article-header .excerpt-text {
  color: var(--zinc-400);
  font-size: 1.125rem;
  max-width: 640px;
  line-height: 1.6;
  margin-bottom: 1rem;
}

.article-header .meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.8125rem;
  color: var(--zinc-500);
}

/* ── Article Body ────────────────────────────────────── */

.article-body {
  padding: 3rem 1rem;
}

.article-body h2 {
  color: var(--white);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 2.5rem 0 1rem;
}

.article-body h3 {
  color: var(--white);
  font-size: 1.25rem;
  font-weight: 600;
  margin: 2rem 0 0.75rem;
}

.article-body p {
  color: var(--zinc-300);
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.article-body ul {
  list-style: none;
  margin-bottom: 1.25rem;
}

.article-body ul li {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
  color: var(--zinc-400);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.article-body ul li::before {
  content: '▸';
  color: var(--lime);
  opacity: 0.7;
  flex-shrink: 0;
  margin-top: 0.1em;
}

.article-body .callout {
  background: rgba(173,250,29,0.05);
  border-left: 3px solid var(--lime);
  border-radius: 0 0.5rem 0.5rem 0;
  padding: 1rem 1.25rem;
  margin-bottom: 1.25rem;
  color: var(--zinc-300);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.25rem;
  font-size: 0.875rem;
}

.article-body thead th {
  text-align: left;
  padding: 0.75rem 1rem;
  color: var(--zinc-400);
  font-weight: 600;
  border-bottom: 1px solid var(--border-subtle);
}

.article-body tbody td {
  padding: 0.75rem 1rem;
  color: var(--zinc-300);
  border-bottom: 1px solid var(--glass-border);
}

.article-body tbody tr:nth-child(even) td {
  background: var(--glass-bg);
}

/* ── Related Posts ────────────────────────────────────── */

.related-posts {
  border-top: 1px solid var(--glass-border);
  padding: 3rem 0;
}

.related-posts h2 {
  color: var(--white);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

/* ── Guide Steps ─────────────────────────────────────── */

.step-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  padding: 1.5rem 2rem;
  margin-bottom: 1.5rem;
}

.step-card .step-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.step-num {
  width: 40px; height: 40px;
  border-radius: 12px;
  background: rgba(173,250,29,0.1);
  border: 1px solid rgba(173,250,29,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--lime);
  font-size: 0.75rem;
  font-weight: 700;
  font-family: monospace;
}

.step-card h2 {
  color: var(--white);
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.step-card .step-content {
  color: var(--zinc-300);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.step-card ul {
  list-style: none;
  margin-bottom: 1rem;
}

.step-card ul li {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
  color: var(--zinc-400);
  font-size: 0.875rem;
  line-height: 1.6;
}

.step-card ul li::before {
  content: '▸';
  color: var(--lime);
  opacity: 0.7;
  flex-shrink: 0;
}

.tip-box {
  background: rgba(173,250,29,0.05);
  border: 1px solid rgba(173,250,29,0.2);
  border-radius: 8px;
  padding: 0.625rem 1rem;
  display: flex;
  gap: 0.5rem;
}

.tip-box .tip-label {
  color: var(--lime);
  font-size: 0.75rem;
  font-weight: 600;
  flex-shrink: 0;
  margin-top: 0.125rem;
}

.tip-box p {
  color: var(--zinc-300);
  font-size: 0.875rem;
  line-height: 1.6;
  margin: 0;
}

.step-link {
  margin-top: 1rem;
}

.step-link a {
  color: var(--lime);
  font-size: 0.875rem;
  font-weight: 500;
}

.step-link a:hover { text-decoration: underline; }

/* ── FAQ ─────────────────────────────────────────────── */

.faq-section {
  border-top: 1px solid var(--glass-border);
  padding: 4rem 0;
}

.faq-section h2 {
  color: var(--white);
  font-size: 1.5rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 2rem;
}

.faq-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1rem;
}

.faq-item .faq-q {
  color: var(--white);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.faq-item .faq-a {
  color: var(--zinc-400);
  font-size: 0.875rem;
  line-height: 1.6;
}

/* ── Structured Data (hidden) ────────────────────────── */

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border-width: 0;
}