:root {
  --accent: #52D34E;
  --accent-hover: #45b842;
  --bg-primary: #000000;
  --bg-secondary: #0a0a0a;
  --bg-card: #111111;
  --bg-card-hover: #1a1a1a;
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --border-color: #2a2a2a;
  --material-shadow: 0 2px 4px rgba(0, 0, 0, 0.2), 0 4px 8px rgba(0, 0, 0, 0.1);
  --material-shadow-hover: 0 4px 8px rgba(0, 0, 0, 0.3), 0 8px 16px rgba(0, 0, 0, 0.2);
}

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

body {
  font-family: 'JetBrainsMono Nerd Font', 'JetBrains Mono', monospace;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
}

/* Navigation */
.navbar {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--material-shadow);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: left;
  align-items: center;
  height: 70px;
  gap: 4rem;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: -0.5px;
}

.logo span {
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}

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

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -24px;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--accent);
}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu {
  display: none;
  position: absolute;
  top: 70px;
  left: 0;
  right: 0;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem;
}

.mobile-menu.active {
  display: block;
}

.mobile-menu a {
  display: block;
  padding: 0.75rem 0;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  border-bottom: 1px solid var(--border-color);
}

.mobile-menu a:last-child {
  border-bottom: none;
}

.mobile-menu a:hover,
.mobile-menu a.active {
  color: var(--accent);
}

/* Hero Section */
.hero {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem 1.5rem;
  background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.hero-content {
  max-width: 800px;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero h1 .accent {
  color: var(--accent);
}

.hero p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
  text-align: justify;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

.btn-primary {
  background-color: var(--accent);
  color: var(--bg-primary);
  box-shadow: var(--material-shadow);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  box-shadow: var(--material-shadow-hover);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}

.btn-secondary:hover {
  background-color: rgba(82, 211, 78, 0.1);
  transform: translateY(-2px);
}

/* Cards */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  transition: all 0.2s ease;
  box-shadow: var(--material-shadow);
}

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

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--accent);
}

.card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  text-align: justify;
}

/* Section */
.section {
  padding: 2rem 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-header h2 .accent {
  color: var(--accent);
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 600px;
  margin: 0 auto;
  text-align: justify;
}

/* Grid */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.grid-4 {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
}

/* Project Cards */
.project-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  transition: all 0.2s ease;
  box-shadow: var(--material-shadow);
}

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

.project-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--accent);
}

.project-card p {
  color: var(--text-secondary);
  font-size: 0.8rem;
  margin-bottom: 1rem;
}

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

.project-card .tag {
  background-color: rgba(82, 211, 78, 0.1);
  color: var(--accent);
  padding: 0.25rem 0.625rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 500;
}

/* Project List */
.project-list-item {
  padding: 1.5rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  transition: all 0.2s ease;
}

.project-list-item:hover {
  border-color: var(--accent);
}

.project-list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.project-list-header h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--accent);
  margin: 0;
}

.project-link {
  color: var(--accent);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  transition: opacity 0.2s ease;
}

.project-link:hover {
  opacity: 0.8;
}

.project-list-item p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.6;
  margin: 0;
  text-align: justify;
}

/* Link Banner */
.link-banner {
  background-color: var(--bg-card);
  border: 1px solid var(--accent);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  margin-bottom: 3rem;
  box-shadow: var(--material-shadow);
}

.link-banner p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  text-align: justify;
}

.link-banner a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

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

/* Guides */
.guide-section {
  margin-bottom: 2rem;
}

.guide-section h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--accent);
}

.guide-section p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  text-align: justify;
}

.guide-subsection {
  margin-bottom: 1.5rem;
  padding-left: 1.5rem;
  border-left: 2px solid var(--border-color);
}

.guide-subsection h4 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.guide-subsection p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  text-align: justify;
}

.guide-list {
  list-style: none;
  padding: 0;
  margin-top: 0.75rem;
}

.guide-list li {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 0.5rem;
  padding-left: 1.5rem;
  position: relative;
}

.guide-list li::before {
  content: '>';
  color: var(--accent);
  font-weight: 700;
  position: absolute;
  left: 0;
}

/* Principles */
.principle-card {
  text-align: center;
  overflow: hidden;
  cursor: pointer;
  min-height: auto;
  transform: none !important;
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  padding: 12px 16px;
  width: fit-content;
  margin: 0 auto;
}

.principle-card:hover {
  transform: none !important;
}

.principle-card .icon,
.principle-card .card-icon {
  font-size: 2rem;
  margin-bottom: 0.5rem;
  color: var(--accent);
  transition: margin-bottom 0.3s ease;
}

.principle-card h3 {
  font-size: 0.9rem;
}

.principle-card:hover .icon,
.principle-card:hover .card-icon {
  margin-bottom: 0.5rem;
}

.principle-card .card-desc {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.8s ease, opacity 0.6s ease, margin-top 0.6s ease;
  opacity: 0;
  text-align: justify;
}

.principle-card:hover .card-desc {
  max-height: 200px;
  opacity: 1;
  margin-top: 0.75rem;
  transition: max-height 1.5s ease, opacity 1.2s ease, margin-top 1.2s ease;
}

/* Core Principles Page */
.principle-item {
  padding: 2rem 0;
  border-bottom: 1px solid var(--border-color);
}

.principle-item:last-child {
  border-bottom: none;
}

.principle-item-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.principle-item-icon {
  font-size: 2rem;
  color: var(--accent);
}

.principle-item h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
}

.principle-item p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0;
  padding-left: 3.5rem;
  text-align: justify;
}

/* About */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--accent);
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 0.9rem;
  text-align: justify;
}

.values-list {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.values-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.values-list li::before {
  content: '>';
  color: var(--accent);
  font-weight: 700;
}

/* Contact Form */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.contact-info h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: var(--accent);
}

.contact-info p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 0.9rem;
  text-align: justify;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.contact-item .icon {
  color: var(--accent);
  font-size: 1.25rem;
}

.contact-form {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: var(--material-shadow);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.875rem;
  transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

/* Footer */
.footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 3rem 1.5rem 1.5rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-brand h3 {
  color: var(--accent);
  font-size: 1.125rem;
  margin-bottom: 1rem;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.8rem;
  text-align: justify;
}

.footer-links h4 {
  color: var(--text-primary);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.footer-links a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.8rem;
  margin-bottom: 0.5rem;
  transition: color 0.2s ease;
}

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

.footer-bottom {
  max-width: 1200px;
  margin: 0 auto;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  text-align: center;
  color: var(--text-secondary);
  font-size: 0.75rem;
}

/* Responsive */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .footer-content {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .mobile-menu-btn {
    display: block;
  }
  
  .hero h1 {
    font-size: 2rem;
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  
  .about-content,
  .contact-grid {
    grid-template-columns: 1fr;
  }
  
  .values-list {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}