:root {
  --bg-color: #0b0f19;
  --bg-card: #111827;
  --bg-card-hover: #1f293d;
  --border-color: #1f293d;
  --border-highlight: #374151;
  --primary-color: #6366f1;
  --primary-hover: #4f46e5;
  --accent-color: #38bdf8;
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --container-max-width: 1120px;
}

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

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

a {
  color: inherit;
  text-decoration: none;
}

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header & Navbar */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(11, 15, 25, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.025em;
}

.brand-icon {
  font-size: 1.5rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.nav-links a:hover {
  color: var(--text-main);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.25rem;
  border-radius: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s ease;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--primary-color);
  color: #fff;
  border: 1px solid transparent;
}

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

.btn-secondary {
  background-color: var(--bg-card);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: var(--bg-card-hover);
  border-color: var(--border-highlight);
}

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

.btn-outline:hover {
  background-color: var(--bg-card);
  border-color: var(--border-highlight);
}

.nav-btn {
  padding: 0.4rem 0.9rem;
  font-size: 0.875rem;
}

/* Hero Section */
.hero {
  padding: 5rem 0 4rem;
  text-align: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 800px;
}

.badge {
  display: inline-block;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
  background-color: rgba(99, 102, 241, 0.15);
  color: #818cf8;
  border: 1px solid rgba(99, 102, 241, 0.3);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, #ffffff 30%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  max-width: 680px;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.command-box {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 0.75rem 1.25rem;
  border-radius: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.command-prompt {
  color: #6366f1;
  font-weight: 700;
}

.copy-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  opacity: 0.7;
  transition: opacity 0.2s;
  color: var(--text-muted);
}

.copy-btn:hover {
  opacity: 1;
}

/* Sections Common */
.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

/* Features Section */
.features-section {
  padding: 5rem 0;
  border-top: 1px solid var(--border-color);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.75rem;
  border-radius: 0.75rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-highlight);
  background-color: var(--bg-card-hover);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.feature-card-link {
  display: block;
  cursor: pointer;
}

.feature-more {
  color: var(--accent-color);
  font-weight: 600;
  white-space: nowrap;
}

/* Quick Start Section */
.quickstart-section {
  padding: 5rem 0;
  border-top: 1px solid var(--border-color);
  background-color: rgba(17, 24, 39, 0.4);
}

.code-steps {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 800px;
  margin: 0 auto;
}

.step-item {
  display: flex;
  gap: 1.25rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: 0.75rem;
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  background-color: rgba(99, 102, 241, 0.2);
  color: #818cf8;
  font-weight: 700;
  flex-shrink: 0;
}

.step-body {
  flex-grow: 1;
}

.step-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.step-body p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

pre {
  background-color: #070a12;
  border: 1px solid var(--border-color);
  padding: 1rem;
  border-radius: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  overflow-x: auto;
  color: #e2e8f0;
}

pre .cmd { color: #38bdf8; }
pre .key { color: #f472b6; }
pre .comment { color: #64748b; font-style: italic; }

/* Companion Skills Section */
.skills-section {
  padding: 5rem 0;
  border-top: 1px solid var(--border-color);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.skill-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.75rem;
  border-radius: 0.75rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.skill-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-highlight);
  background-color: var(--bg-card-hover);
}

.skill-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.skill-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.skill-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.skills-actions {
  display: flex;
  justify-content: center;
  margin-top: 1.5rem;
}

.skills-section .command-box {
  max-width: 640px;
  margin: 0 auto;
}

/* Docs Section */
.docs-section {
  padding: 5rem 0;
  border-top: 1px solid var(--border-color);
}

.docs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.doc-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 1.5rem;
  border-radius: 0.75rem;
  transition: all 0.2s ease;
  display: block;
}

.doc-card:hover {
  border-color: var(--primary-color);
  background-color: var(--bg-card-hover);
  transform: translateY(-2px);
}

.doc-title {
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.doc-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Contributors Section */
.contributors-section {
  padding: 5rem 0;
  border-top: 1px solid var(--border-color);
}

.contributors-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.75rem;
}

.contributor-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0.9rem 0.4rem 0.4rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 9999px;
  font-size: 0.9rem;
  font-weight: 500;
  transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.contributor-badge:hover {
  transform: translateY(-2px);
  border-color: var(--border-highlight);
  background-color: var(--bg-card-hover);
}

.contributor-badge img {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 3rem 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-left p {
  margin-top: 0.5rem;
  font-size: 0.875rem;
}

.footer-right a {
  color: var(--text-main);
  text-decoration: underline;
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.25rem;
  }
  .nav-links {
    gap: 1rem;
  }
  .footer-content {
    flex-direction: column;
    align-items: flex-start;
  }
}


/* Prismarine Subpage Theme (emerald/teal gem palette) */
.theme-prismarine {
  --primary-color: #10b981;
  --primary-hover: #059669;
  --accent-color: #2dd4bf;
}

.theme-prismarine .badge {
  background-color: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border-color: rgba(16, 185, 129, 0.3);
}

.theme-prismarine .command-prompt {
  color: #10b981;
}

.theme-prismarine .step-number {
  background-color: rgba(16, 185, 129, 0.2);
  color: #34d399;
}

.theme-prismarine pre .cmd { color: #2dd4bf; }
.theme-prismarine pre .key { color: #34d399; }

.theme-prismarine .doc-card:hover {
  border-color: var(--primary-color);
}

.theme-prismarine .contributor-badge:hover {
  border-color: var(--primary-color);
}

.theme-prismarine .footer-left p a,
.theme-prismarine .integration-card a {
  color: #34d399;
  text-decoration: underline;
}

/* EasySAM Integration Highlight */
.integration-section {
  padding: 5rem 0;
  border-top: 1px solid var(--border-color);
  background-color: rgba(17, 24, 39, 0.4);
}

.integration-card {
  max-width: 800px;
  margin: 0 auto;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 2rem;
  border-radius: 0.75rem;
}

.integration-card > p {
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 1.5rem;
}

.integration-actions {
  display: flex;
  justify-content: flex-start;
  margin-top: 1.5rem;
}