/* Ultra-Modern, Premium Design - Sleek & Classy */

/* Import Google Fonts for Premium Typography */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

/* CSS Variables for Consistent Theming */
:root {
  --color-primary: #10b981;
  --color-primary-dark: #059669;
  --color-primary-light: #34d399;
  --color-background: #0a0a0a;
  --color-surface: #151515;
  --color-surface-elevated: #1e1e1e;
  --color-border: #2a2a2a;
  --color-text-primary: #ffffff;
  --color-text-secondary: #a1a1a1;
  --color-accent: #3b82f6;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.6), 0 10px 10px -5px rgba(0, 0, 0, 0.3);
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Body and Base Styling */
body {
  background: linear-gradient(180deg, #0a0a0a 0%, #000000 100%);
  color: var(--color-text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.65;
  font-size: 16px;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  width: 100%;
  box-sizing: border-box;
}

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

/* Animated Background Gradient */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 50% 50%, rgba(16, 185, 129, 0.03) 0%, transparent 50%);
  animation: rotate 30s linear infinite;
  pointer-events: none;
  z-index: -1;
}

@keyframes rotate {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* Full Width Container - Balanced Layout */
.container-fluid,
.distill-site-header,
d-article,
.container,
.d-contents,
.d-article,
body > div,
#main,
.main-content {
  max-width: 1600px !important;
  width: 100% !important;
  padding-left: 3rem;
  padding-right: 3rem;
  margin-left: auto !important;
  margin-right: auto !important;
  box-sizing: border-box;
}

/* Article Content */
d-article .article-content,
.article-content,
d-title,
d-byline,
d-article > *,
.l-body,
.l-page,
.l-gutter,
.l-text,
.l-middle,
.l-screen,
.l-screen-inset,
.l-body-outset {
  max-width: 100% !important;
  margin: 0 auto;
  padding-left: 0;
  padding-right: 0;
  grid-column: 1 / -1 !important;
  box-sizing: border-box;
  overflow-x: hidden;
}

/* Premium Card-like Content Sections */
d-article {
  background: var(--color-surface);
  border-radius: 16px;
  padding: 3rem;
  margin: 2rem auto;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl);
  position: relative;
  overflow: hidden;
}

/* Subtle gradient overlay on articles */
d-article::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
  opacity: 0.5;
}

/* Headings - Ultra-Modern Typography */
h1 {
  color: var(--color-text-primary);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 800;
  letter-spacing: -2px;
  margin-bottom: 1.5rem;
  margin-top: 0;
  line-height: 1.1;
  background: linear-gradient(135deg, var(--color-text-primary) 0%, var(--color-primary-light) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
  padding-bottom: 1.5rem;
}

h1::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 80px;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  border-radius: 2px;
}

h2 {
  color: var(--color-text-primary);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  margin-top: 4rem;
  margin-bottom: 1.5rem;
  letter-spacing: -1px;
  position: relative;
  padding-left: 1.5rem;
  line-height: 1.2;
}

h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-primary-dark));
  border-radius: 2px;
}

h3 {
  color: var(--color-text-primary);
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: 600;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  letter-spacing: -0.5px;
}

h4, h5, h6 {
  color: var(--color-text-primary);
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

/* Links - Premium Interaction */
a {
  color: var(--color-primary);
  text-decoration: none;
  position: relative;
  transition: color var(--transition-base);
  font-weight: 500;
}

a::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 1px;
  bottom: -2px;
  left: 0;
  background: linear-gradient(90deg, var(--color-primary), var(--color-primary-light));
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-base);
}

a:hover {
  color: var(--color-primary-light);
}

a:hover::before {
  transform: scaleX(1);
  transform-origin: left;
}

/* Horizontal Rules - Elegant Divider */
hr {
  border: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
  margin: 4rem 0;
  position: relative;
}

hr::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  width: 8px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 50%;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.5);
}

/* Lists - Clean & Spacious */
ul, ol {
  line-height: 1.8;
  color: var(--color-text-primary);
  padding-left: 1.5rem;
  margin: 1.5rem 0;
}

li {
  margin-bottom: 0.75rem;
  color: var(--color-text-primary);
  position: relative;
}

ul li::marker {
  color: var(--color-primary);
}

/* Strong/Bold - Accent with Gradient */
strong {
  color: var(--color-primary-light);
  font-weight: 600;
}

/* Code Blocks - Developer-Grade Styling */
code {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-primary-light);
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  font-family: 'JetBrains Mono', 'Courier New', monospace;
  font-size: 0.9em;
  border: 1px solid rgba(16, 185, 129, 0.2);
  font-weight: 500;
}

pre {
  background: #000000;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  padding: 1.5rem;
  overflow-x: auto;
  color: var(--color-text-primary);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  margin: 2rem 0;
}

pre code {
  background: transparent;
  border: none;
  padding: 0;
  color: var(--color-text-primary);
}

/* Blockquotes - Elegant & Impactful */
blockquote {
  border-left: 4px solid var(--color-primary);
  padding: 1.5rem 2rem;
  margin: 2.5rem 0;
  color: var(--color-text-primary);
  font-style: italic;
  font-size: 1.1rem;
  background: var(--color-surface-elevated);
  border-radius: 0 12px 12px 0;
  box-shadow: var(--shadow-sm);
  position: relative;
}

blockquote::before {
  content: '"';
  position: absolute;
  top: -10px;
  left: 10px;
  font-size: 4rem;
  color: var(--color-primary);
  opacity: 0.2;
  font-family: Georgia, serif;
}

/* Tables - Data Visualization Excellence */
table {
  background: var(--color-surface);
  color: var(--color-text-primary);
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  margin: 2.5rem 0;
  border: 1px solid var(--color-border);
}

th {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: var(--color-text-primary);
  padding: 1.25rem 1.5rem;
  text-align: left;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.85rem;
}

td {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-primary);
  transition: background-color var(--transition-fast);
}

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

tbody tr:hover {
  background: var(--color-surface-elevated);
}

tbody tr {
  transition: all var(--transition-fast);
}

/* Emphasis - Subtle Highlight */
em {
  color: var(--color-primary-light);
  font-style: italic;
}

/* Navigation - Premium Header */
.distill-site-header {
  background: rgba(10, 10, 10, 0.8) !important;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: all var(--transition-base);
}

.distill-site-nav {
  font-weight: 500;
}

.distill-site-nav a {
  color: var(--color-text-secondary) !important;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  transition: all var(--transition-base);
  font-size: 0.95rem;
  letter-spacing: 0.3px;
}

.distill-site-nav a:hover {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-primary-light) !important;
  transform: translateY(-1px);
}

/* Dropdown Menu - Glass Morphism */
.distill-site-nav .dropdown-menu {
  background: rgba(21, 21, 21, 0.95) !important;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--color-border) !important;
  box-shadow: var(--shadow-xl);
  border-radius: 12px;
  padding: 0.75rem;
  margin-top: 0.5rem;
}

.distill-site-nav .dropdown-menu a,
.distill-site-nav .dropdown-item {
  color: var(--color-text-secondary) !important;
  background-color: transparent !important;
  padding: 0.75rem 1.25rem !important;
  display: block;
  transition: all var(--transition-base);
  border-radius: 8px;
  margin: 0.25rem 0;
}

.distill-site-nav .dropdown-menu a:hover,
.distill-site-nav .dropdown-item:hover {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary)) !important;
  color: var(--color-text-primary) !important;
  transform: translateX(4px);
}

/* Paragraphs - Optimal Readability */
p {
  color: var(--color-text-primary);
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
  line-height: 1.75;
  max-width: 100%;
}

/* Buttons - Premium Interactive Elements */
button, .btn {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--color-text-primary);
  border: none;
  padding: 1rem 2rem;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-base);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.9rem;
  box-shadow: var(--shadow-md);
  position: relative;
  overflow: hidden;
}

button::before, .btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left var(--transition-slow);
}

button:hover::before, .btn:hover::before {
  left: 100%;
}

button:hover, .btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

button:active, .btn:active {
  transform: translateY(0);
}

/* Smooth Scrolling */
html {
  scroll-behavior: smooth;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

::-webkit-scrollbar-track {
  background: var(--color-background);
}

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 6px;
  border: 3px solid var(--color-background);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}

/* Selection Highlight */
::selection {
  background: var(--color-primary);
  color: var(--color-text-primary);
}

::-moz-selection {
  background: var(--color-primary);
  color: var(--color-text-primary);
}

/* Focus Styles - Accessibility */
*:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Logo Size - More Specific Selectors */
.distill-site-header .navbar-brand img,
.distill-site-header img,
.navbar-brand img,
.distill-site-nav .navbar-brand img,
nav img,
.distill-site-header .logo img {
  height: 66px !important;
  width: auto !important;
  max-height: 66px !important;
  margin-right: 10px !important;
  vertical-align: middle !important;
  display: inline-block !important;
}

/* Hide title text, show only logo */
.distill-site-header .title,
.navbar-header .navbar-brand-text,
.distill-site-nav .title,
.distill-site-header a.title,
.navbar .title {
  display: none !important;
  visibility: hidden !important;
  font-size: 0 !important;
  width: 0 !important;
  height: 0 !important;
  overflow: hidden !important;
  position: absolute !important;
}

/* Premium Panels */
.panel, .card {
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 2rem;
  margin: 1.5rem 0;
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
}

.panel:hover, .card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

/* Loading Animation for Interactive Elements */
@keyframes shimmer {
  0% { background-position: -1000px 0; }
  100% { background-position: 1000px 0; }
}

/* Responsive Design */
@media (max-width: 768px) {
  h1 {
    font-size: 2.5rem;
    letter-spacing: -1px;
  }
  
  h2 {
    font-size: 1.75rem;
  }
  
  d-article {
    padding: 2rem 1.5rem;
    border-radius: 12px;
  }
  
  .container-fluid,
  .distill-site-header,
  d-article,
  .container {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
  
  table {
    font-size: 0.9rem;
  }
  
  th, td {
    padding: 0.75rem 1rem;
  }
}

/* Print Styles */
@media print {
  body {
    background: white;
    color: black;
  }
  
  .distill-site-header,
  button,
  .btn {
    display: none;
  }
}