@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;600&family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@500;600;700&display=swap');

:root {
  color-scheme: light;
  --bg: #FAF8F5;
  --bg-subtle: #F2EDE4;
  --bg-header: rgba(250, 248, 245, 0.92);
  --bg-card: #FFFFFF;
  --bg-card-hover: #F6F2EA;
  --fg: #1F1E1B;
  --fg-muted: #59554E;
  --fg-dim: #827E74;
  --border: #E8E2D7;
  --border-hover: rgba(217, 119, 87, 0.45);
  
  --accent-primary: #D97757;
  --accent-primary-hover: #C86545;
  --accent-primary-glow: rgba(217, 119, 87, 0.12);
  --accent-secondary: #0284C7;
  --accent-secondary-glow: rgba(2, 132, 199, 0.08);
  --accent-success: #059669;
  --accent-warning: #D97706;
  --accent-purple: #7C3AED;
  --accent-cyan: #0284C7;
  
  --code-bg: #F2EDE4;
  --code-border: #E2DCD0;
  --code-text: #B91C1C;
  
  --shadow-sm: 0 1px 3px rgba(31, 30, 27, 0.06);
  --shadow-md: 0 4px 14px rgba(31, 30, 27, 0.09);
  --shadow-lg: 0 8px 24px rgba(31, 30, 27, 0.12);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;
  
  --font-display: 'Space Grotesk', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Fira Code', ui-monospace, SFMono-Regular, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #171615;
    --bg-subtle: #1F1D1B;
    --bg-header: rgba(23, 22, 21, 0.92);
    --bg-card: #211F1D;
    --bg-card-hover: #2B2825;
    --fg: #F5F4F0;
    --fg-muted: #A8A49C;
    --fg-dim: #736F67;
    --border: rgba(255, 255, 255, 0.09);
    --border-hover: rgba(217, 119, 87, 0.45);
    
    --accent-primary: #D97757;
    --accent-primary-hover: #E2886A;
    --accent-primary-glow: rgba(217, 119, 87, 0.16);
    --accent-secondary: #38BDF8;
    --accent-secondary-glow: rgba(56, 189, 248, 0.1);
    --accent-success: #10B981;
    --accent-warning: #F59E0B;
    --accent-purple: #A78BFA;
    --accent-cyan: #38BDF8;
    
    --code-bg: #1C1A18;
    --code-border: rgba(255, 255, 255, 0.08);
    --code-text: #F87171;
    
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.6);
  }
}

html[data-theme="dark"] {
  color-scheme: dark;
  --bg: #171615 !important;
  --bg-subtle: #1F1D1B !important;
  --bg-header: rgba(23, 22, 21, 0.92) !important;
  --bg-card: #211F1D !important;
  --bg-card-hover: #2B2825 !important;
  --fg: #F5F4F0 !important;
  --fg-muted: #A8A49C !important;
  --fg-dim: #736F67 !important;
  --border: rgba(255, 255, 255, 0.09) !important;
  --border-hover: rgba(217, 119, 87, 0.45) !important;
  
  --accent-primary: #D97757 !important;
  --accent-primary-hover: #E2886A !important;
  --accent-primary-glow: rgba(217, 119, 87, 0.16) !important;
  --accent-secondary: #38BDF8 !important;
  --accent-secondary-glow: rgba(56, 189, 248, 0.1) !important;
  --accent-success: #10B981 !important;
  --accent-warning: #F59E0B !important;
  --accent-purple: #A78BFA !important;
  --accent-cyan: #38BDF8 !important;
  
  --code-bg: #1C1A18 !important;
  --code-border: rgba(255, 255, 255, 0.08) !important;
  --code-text: #F87171 !important;
  
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4) !important;
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.5) !important;
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.6) !important;
}

html[data-theme="light"] {
  color-scheme: light;
  --bg: #FAF8F5 !important;
  --bg-subtle: #F2EDE4 !important;
  --bg-header: rgba(250, 248, 245, 0.92) !important;
  --bg-card: #FFFFFF !important;
  --bg-card-hover: #F6F2EA !important;
  --fg: #1F1E1B !important;
  --fg-muted: #59554E !important;
  --fg-dim: #827E74 !important;
  --border: #E8E2D7 !important;
  --border-hover: rgba(217, 119, 87, 0.45) !important;
  
  --accent-primary: #D97757 !important;
  --accent-primary-hover: #C86545 !important;
  --accent-primary-glow: rgba(217, 119, 87, 0.12) !important;
  --accent-secondary: #0284C7 !important;
  --accent-secondary-glow: rgba(2, 132, 199, 0.08) !important;
  --accent-success: #059669 !important;
  --accent-warning: #D97706 !important;
  --accent-purple: #7C3AED !important;
  --accent-cyan: #0284C7 !important;
  
  --code-bg: #F2EDE4 !important;
  --code-border: #E2DCD0 !important;
  --code-text: #B91C1C !important;
  
  --shadow-sm: 0 1px 3px rgba(31, 30, 27, 0.06) !important;
  --shadow-md: 0 4px 14px rgba(31, 30, 27, 0.09) !important;
  --shadow-lg: 0 8px 24px rgba(31, 30, 27, 0.12) !important;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.65 var(--font-sans);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Header Nav - Anthropic Glassmorphism */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-header);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: all 0.2s ease;
}

.header-container {
  max-width: 68rem;
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--fg);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  border-bottom: none;
  transition: transform 0.2s ease;
}

.brand-logo:hover {
  border-bottom: none;
  transform: translateY(-1px);
}

.brand-logo .logo-stream {
  color: var(--accent-primary);
}

.brand-icon {
  width: 32px;
  height: 32px;
  background: var(--accent-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFF;
  font-size: 1.1rem;
}

.brand-badge {
  font-size: 0.7rem;
  padding: 0.2rem 0.6rem;
  background: rgba(255, 122, 69, 0.12);
  color: var(--accent-primary);
  border-radius: var(--radius-full);
  font-family: var(--font-mono);
  font-weight: 600;
  border: 1px solid rgba(255, 122, 69, 0.25);
  letter-spacing: 0.05em;
  text-transform: lowercase;
}

nav.nav-links {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex-wrap: wrap;
}

nav.nav-links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--fg-muted);
  text-decoration: none;
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius-sm);
  border: none;
  transition: all 0.15s ease;
}

nav.nav-links a:hover {
  color: var(--fg);
  background: var(--bg-card-hover);
  border-bottom: none;
}

nav.nav-links a.active {
  color: var(--accent-primary);
  background: var(--accent-primary-glow);
  border: 1px solid rgba(255, 122, 69, 0.25);
  border-bottom: none;
}

nav.nav-links a.nav-ext {
  color: var(--accent-secondary);
  border: 1px solid rgba(0, 229, 255, 0.25);
  background: rgba(0, 229, 255, 0.06);
  margin-right: 0.4rem;
}

nav.nav-links a.nav-ext:hover {
  background: rgba(2, 132, 199, 0.15);
  color: var(--fg);
  border-color: rgba(2, 132, 199, 0.45);
}

/* Theme Toggle Button - Fixed Top Right Corner */
.theme-toggle-btn {
  position: fixed;
  top: 1rem;
  right: 1.25rem;
  z-index: 1000;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--fg);
  width: 42px;
  height: 42px;
  padding: 0;
  border-radius: var(--radius-full);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.theme-toggle-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent-primary);
  color: var(--accent-primary);
  transform: scale(1.1);
  box-shadow: 0 4px 18px rgba(217, 119, 87, 0.3);
}

.theme-toggle-btn:active {
  transform: scale(0.95);
}

.theme-toggle-btn .sun-icon {
  display: none;
  width: 20px;
  height: 20px;
}

.theme-toggle-btn .moon-icon {
  display: inline-block;
  width: 20px;
  height: 20px;
}

html[data-theme="dark"] .theme-toggle-btn .sun-icon {
  display: inline-block;
}

html[data-theme="dark"] .theme-toggle-btn .moon-icon {
  display: none;
}

/* Hide theme toggle on mobile devices */
@media (max-width: 768px) {
  .theme-toggle-btn {
    display: none !important;
  }
}

/* Claude Directory / Folder Badge Accent Colors */
.folder-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.6rem;
}

.folder-amber {
  background: rgba(217, 119, 6, 0.12);
  color: var(--accent-warning);
  border: 1px solid rgba(217, 119, 6, 0.25);
}

.folder-purple {
  background: rgba(124, 58, 237, 0.12);
  color: var(--accent-purple);
  border: 1px solid rgba(124, 58, 237, 0.25);
}

.folder-emerald {
  background: rgba(5, 150, 105, 0.12);
  color: var(--accent-success);
  border: 1px solid rgba(5, 150, 105, 0.25);
}

.folder-sky {
  background: rgba(2, 132, 199, 0.12);
  color: var(--accent-cyan);
  border: 1px solid rgba(2, 132, 199, 0.25);
}

.folder-terracotta {
  background: var(--accent-primary-glow);
  color: var(--accent-primary);
  border: 1px solid rgba(217, 119, 87, 0.25);
}

/* Page Container */
main {
  max-width: 58rem;
  margin: 0 auto;
  padding: 3rem 1.5rem 6rem;
}

header.page-header {
  padding: 1.5rem 0 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem;
  position: relative;
}

.kicker {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-primary);
  font-weight: 600;
  margin: 0 0 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.25rem 0.75rem;
  background: var(--accent-primary-glow);
  border: 1px solid rgba(255, 122, 69, 0.2);
  border-radius: var(--radius-full);
}

.kicker::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--accent-primary);
  border-radius: 50%;
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(2.3rem, 5.5vw, 3.5rem);
  line-height: 1.1;
  margin: 0 0 1rem;
  letter-spacing: -0.03em;
  font-weight: 700;
  color: #F1F5F9;
}

h2 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  margin: 3.5rem 0 1.25rem;
  letter-spacing: -0.02em;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  color: var(--fg);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

h2::before {
  content: "//";
  color: var(--accent-primary);
  font-family: var(--font-mono);
  font-size: 0.9em;
  font-weight: 600;
}

h3 {
  font-family: var(--font-display);
  font-size: 1.22rem;
  font-weight: 600;
  margin: 2.2rem 0 0.85rem;
  color: var(--fg);
}

.lead {
  font-size: 1.2rem;
  color: var(--fg-muted);
  line-height: 1.6;
  margin: 0;
  font-weight: 400;
  max-width: 48ch;
}

p, ul, ol {
  margin: 0 0 1.35rem;
  color: var(--fg);
}

li {
  margin-bottom: 0.55rem;
}

a {
  color: var(--accent-primary);
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 122, 69, 0.4);
  transition: all 0.15s ease;
}

a:hover {
  color: var(--accent-primary-hover);
  border-bottom-style: solid;
  border-bottom-color: var(--accent-primary);
}

/* Command Palette Bar (Signature Interactive Element) */
.command-palette {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.2rem 1.4rem;
  margin: 2rem 0 2.5rem;
  box-shadow: var(--shadow-sm);
}

.command-palette-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-dim);
  margin-bottom: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.command-tags {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.cmd-btn {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 0.4rem 0.75rem;
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  color: var(--accent-secondary);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
  user-select: none;
}

.cmd-btn:hover, .cmd-btn.active {
  background: rgba(0, 229, 255, 0.12);
  border-color: rgba(0, 229, 255, 0.35);
  box-shadow: 0 0 10px rgba(0, 229, 255, 0.2);
  transform: translateY(-1px);
}

/* Cards Grid */
.cards {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(auto-fill, minmax(16.5rem, 1fr));
  margin: 2.2rem 0;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.4rem 1.5rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  opacity: 0;
  transition: opacity 0.2s ease;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.card:hover::before {
  opacity: 1;
}

.card h3 {
  margin: 0 0 0.6rem;
  font-size: 1.1rem;
  line-height: 1.4;
}

.card h3 a {
  color: var(--fg);
  border: none;
}

.card:hover h3 a {
  color: var(--accent-primary);
}

.card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--fg-muted);
  line-height: 1.6;
}

/* Code Snippets & Terminal Windows */
code {
  background: var(--code-bg);
  color: #F87171;
  padding: 0.2em 0.45em;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.86em;
  border: 1px solid var(--code-border);
}

pre {
  background: var(--code-bg);
  border: 1px solid var(--code-border);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  line-height: 1.6;
  box-shadow: var(--shadow-sm);
  position: relative;
}

pre code {
  background: none;
  padding: 0;
  border: none;
  color: #E2E8F0;
  font-size: 1em;
}

/* Callout Banners */
.note, .warn, .tip {
  border-left: 4px solid var(--accent-primary);
  background: var(--bg-card);
  padding: 1.1rem 1.3rem;
  margin: 1.8rem 0;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 0.96rem;
  box-shadow: var(--shadow-sm);
  border-top: 1px solid var(--border);
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.warn {
  border-left-color: var(--accent-warning);
  background: rgba(245, 158, 11, 0.08);
}

.tip {
  border-left-color: var(--accent-secondary);
  background: var(--accent-secondary-glow);
}

/* Tables */
.tablewrap {
  overflow-x: auto;
  margin: 1.8rem 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  background: var(--bg-card);
}

table {
  border-collapse: collapse;
  width: 100%;
  font-size: 0.92rem;
  min-width: 32rem;
}

th, td {
  text-align: left;
  padding: 0.85rem 1.1rem;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

tr:last-child td {
  border-bottom: none;
}

th {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
  background: var(--bg-subtle);
}

tr:hover td {
  background: var(--bg-card-hover);
}

/* Breadcrumb Navigation */
nav.crumbs, nav.breadcrumbs {
  font-size: 0.88rem;
  color: var(--fg-dim);
  margin-bottom: 1.75rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
}

nav.crumbs a, nav.breadcrumbs a {
  border: none;
  color: var(--fg-muted);
}

nav.crumbs a:hover, nav.breadcrumbs a:hover {
  color: var(--accent-primary);
}

/* Footer Studio Style */
footer.site-footer {
  border-top: 1px solid var(--border);
  background: var(--bg-subtle);
  padding: 4rem 1.5rem 4rem;
  margin-top: 6rem;
  position: relative;
}

.footer-container {
  max-width: 68rem;
  margin: 0 auto;
  display: grid;
  gap: 2.5rem;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  grid-column: span 2;
}

@media (max-width: 768px) {
  .footer-brand {
    grid-column: span 1;
  }
}

.footer-desc {
  font-size: 0.9rem;
  color: var(--fg-muted);
  line-height: 1.6;
  margin: 0;
  max-width: 32ch;
}

.footer-group h4 {
  font-family: var(--font-display);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-primary);
  margin: 0 0 1.1rem;
}

.footer-group ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-group li {
  margin-bottom: 0.6rem;
}

.footer-group a {
  font-size: 0.88rem;
  color: var(--fg-muted);
  border: none;
}

.footer-group a:hover {
  color: var(--fg);
}

.footer-bottom {
  max-width: 68rem;
  margin: 3rem auto 0;
  padding-top: 1.75rem;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--fg-dim);
  font-family: var(--font-mono);
}

.footer-bottom a {
  color: var(--fg-muted);
  border: none;
}

.footer-bottom a:hover {
  color: var(--accent-primary);
}

.footer-ext-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent-secondary);
  text-decoration: none;
  border: none;
  margin-top: 0.3rem;
  transition: color 0.15s ease;
}

.footer-ext-link:hover {
  color: #FFF;
  text-decoration: underline;
}

/* Mobile Responsive Adjustments for Header & Footer */
@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    align-items: stretch;
    gap: 0.65rem;
    padding: 0.75rem 1rem;
  }

  .brand-logo {
    font-size: 1.05rem;
    justify-content: space-between;
    width: 100%;
  }

  .brand-badge {
    display: none;
  }

  nav.nav-links {
    width: 100%;
    display: flex;
    overflow-x: auto;
    white-space: nowrap;
    gap: 0.3rem;
    padding-bottom: 0.35rem;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  nav.nav-links::-webkit-scrollbar {
    display: none;
  }

  nav.nav-links a {
    font-size: 0.82rem;
    padding: 0.35rem 0.65rem;
    flex-shrink: 0;
  }

  nav.nav-links a.nav-ext {
    margin-right: 0.2rem;
  }

  footer.site-footer {
    padding: 2.5rem 1rem 3rem;
    margin-top: 3.5rem;
  }

  .footer-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-brand {
    grid-column: span 1;
  }

  .footer-desc {
    max-width: 100%;
    font-size: 0.88rem;
  }

  .footer-bottom {
    margin-top: 2rem;
    padding-top: 1.25rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
}

/* SVG Icons Utility Styling */
.svg-icon {
  display: inline-block;
  vertical-align: -0.15em;
  width: 1.1em;
  height: 1.1em;
  fill: currentColor;
  flex-shrink: 0;
}

.svg-stroke {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.brand-icon-svg {
  width: 18px;
  height: 18px;
  display: block;
}

.tool-title-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.tool-logo-img {
  width: 28px;
  height: 28px;
  object-fit: contain;
  border-radius: var(--radius-sm);
  vertical-align: middle;
  transition: transform 0.2s ease;
}

.card:hover .tool-logo-img {
  transform: scale(1.08);
}

.icon-check {
  color: var(--accent-success);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.icon-cross {
  color: #F87171;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}