:root {
  --bg-color: #050505;
  --surface-color: #111111;
  --surface-color-light: #1a1a1a;
  --accent-color: #0b4a2b; /* Dark Green */
  --accent-glow: rgba(11, 74, 43, 0.4);
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  
  --glass-bg: rgba(17, 17, 17, 0.6);
  --glass-border: rgba(255, 255, 255, 0.08);
  
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-display: 'Outfit', var(--font-main);
  
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 2rem;
  --spacing-xl: 4rem;
  --spacing-xxl: 8rem;
  
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-main);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: clamp(3rem, 8vw, 6rem);
}

h2 {
  font-size: clamp(2rem, 5vw, 4rem);
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
}

p {
  color: var(--text-secondary);
  font-size: 1.125rem;
  margin-bottom: var(--spacing-lg);
  max-width: 65ch;
}

a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: var(--radius-md);
}

/* Glassmorphism Utilities */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
}

.glass-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(5, 5, 5, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-xxl) 0;
}

/* Navigation */
.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-leaf {
  color: var(--accent-color);
  font-size: 1.8rem;
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
}

.btn-primary {
  background-color: var(--text-primary);
  color: var(--bg-color);
}

.btn-primary:hover {
  transform: scale(1.02);
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.2);
}

.btn-accent {
  background: linear-gradient(135deg, #106a3e 0%, var(--accent-color) 100%);
  color: white;
  box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-accent:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 25px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
}

.btn-outline:hover {
  background: var(--surface-color);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px; /* Offset for nav */
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: -2;
  opacity: 0.6;
}

.hero-gradient {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom, rgba(5,5,5,0.1) 0%, rgba(5,5,5,1) 100%);
  z-index: -1;
}

.hero-content {
  max-width: 900px;
  text-align: left;
}

.hero-badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: var(--spacing-lg);
  color: var(--text-secondary);
}

.hero-badge span {
  color: #4ade80; /* Brighter green for badge text */
}

.hero-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Feature Cards */
.feature-card {
  padding: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  transition: transform var(--transition-slow);
}

.feature-card:hover {
  transform: translateY(-10px);
  background: var(--surface-color-light);
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--surface-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-color);
  font-size: 1.5rem;
  border: 1px solid var(--glass-border);
}

.feature-card h3 {
  font-size: 1.5rem;
  margin-bottom: 0;
}

.feature-card p {
  font-size: 1rem;
  margin-bottom: 0;
}

/* Split Section (Image / Text) */
.split-section {
  display: flex;
  align-items: center;
  gap: var(--spacing-xl);
}

.split-content, .split-image {
  flex: 1;
}

.split-image img {
  border-radius: var(--radius-lg);
  box-shadow: 0 20px 40px rgba(0,0,0,0.5);
}

/* Blog Cards */
.article-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform var(--transition-slow);
}

.article-card:hover {
  transform: translateY(-5px);
}

.article-image {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.article-content {
  padding: var(--spacing-lg);
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.article-meta {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
  display: flex;
  gap: var(--spacing-md);
}

.article-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
}
.article-title a {
  color: var(--text-primary);
}
.article-title a:hover {
  color: #4ade80;
}

.article-excerpt {
  font-size: 1rem;
  margin-bottom: var(--spacing-md);
  flex-grow: 1;
}

.article-read-more {
  font-weight: 600;
  color: var(--text-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}
.article-read-more:hover {
  color: #4ade80;
}

/* Article Template (Long form) */
.article-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: var(--spacing-xl);
  align-items: start;
}

.article-hero {
  margin-top: 80px;
  position: relative;
  height: 60vh;
  min-height: 400px;
  display: flex;
  align-items: flex-end;
  padding-bottom: var(--spacing-xl);
}
.article-hero-bg {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  object-fit: cover;
  z-index: -2;
}
.article-hero-gradient {
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: linear-gradient(to top, var(--bg-color) 0%, transparent 100%);
  z-index: -1;
}

.article-body {
  font-size: 1.125rem;
}
.article-body h2 {
  margin-top: var(--spacing-xl);
}
.article-body img {
  margin: var(--spacing-lg) 0;
  border-radius: var(--radius-lg);
}

.toc-sidebar {
  position: sticky;
  top: 100px;
}
.toc-sidebar h4 {
  margin-bottom: var(--spacing-md);
  font-size: 1.125rem;
}
.toc-sidebar ul {
  list-style: none;
}
.toc-sidebar li {
  margin-bottom: var(--spacing-sm);
}
.toc-sidebar a {
  color: var(--text-secondary);
  font-size: 0.95rem;
}
.toc-sidebar a:hover {
  color: var(--text-primary);
}

/* FAQ */
.faq-item {
  border-bottom: 1px solid var(--glass-border);
  padding: var(--spacing-md) 0;
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-size: 1.25rem;
  font-weight: 600;
  font-family: var(--font-display);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-fast);
  color: var(--text-secondary);
  padding-right: 2rem;
}
.faq-item.active .faq-answer {
  max-height: 500px;
  margin-top: var(--spacing-md);
}
.faq-icon {
  transition: transform var(--transition-fast);
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
}

/* Footer */
footer {
  border-top: 1px solid var(--glass-border);
  padding: var(--spacing-xl) 0 var(--spacing-md);
  background: var(--surface-color);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-brand p {
  font-size: 0.95rem;
  margin-top: var(--spacing-md);
}

.footer-col h4 {
  font-size: 1.125rem;
  margin-bottom: var(--spacing-md);
}
.footer-col ul {
  list-style: none;
}
.footer-col li {
  margin-bottom: var(--spacing-sm);
}
.footer-col a {
  color: var(--text-secondary);
  font-size: 0.95rem;
}
.footer-col a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  border-top: 1px solid var(--glass-border);
  padding-top: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Animations */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .article-layout {
    grid-template-columns: 1fr;
  }
  .toc-sidebar {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .nav-links {
    display: none;
    position: absolute;
    top: 80px;
    left: 0;
    width: 100%;
    background: var(--surface-color);
    flex-direction: column;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--glass-border);
  }
  .nav-links.active {
    display: flex;
  }
  .menu-toggle {
    display: block;
  }
  .split-section {
    flex-direction: column;
  }
  .hero-actions {
    flex-direction: column;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

.logo-img { width: 32px; height: 32px; object-fit: contain; }