/* Art direction: BLUECARBONS Open Source -> calm, editorial, mission-driven
   Palette: warm cream surfaces, deep green primary accent (a16z jobs palette)
   Typography: Newsreader (display, editorial serif) + Inter (body, clean sans)
   Density: spacious, Google.org-style breathing room */

:root, [data-theme="light"] {
  --color-bg: #F6F4EE;
  --color-surface: #FBFAF6;
  --color-surface-2: #F0ECE3;
  --color-surface-offset: #E7E1D2;
  --color-divider: #E7E1D2;
  --color-border: #DCD5C4;

  --color-text: #14150F;
  --color-text-muted: #55564B;
  --color-text-faint: #8A8B7E;
  --color-text-inverse: #F6F4EE;

  --color-primary: #336D5D;
  --color-primary-hover: #285A4C;
  --color-primary-active: #1F473C;
  --color-primary-highlight: #D1E6E0;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --transition-interactive: 200ms cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 420ms cubic-bezier(0.16, 1, 0.3, 1);

  --shadow-sm: 0 1px 2px rgba(20, 21, 15, 0.05);
  --shadow-md: 0 8px 24px rgba(20, 21, 15, 0.07);
  --shadow-lg: 0 20px 48px rgba(20, 21, 15, 0.1);

  --font-display: 'Newsreader', Georgia, serif;
  --font-body: 'Inter', 'Helvetica Neue', sans-serif;

  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);

  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem; --space-4: 1rem;
  --space-5: 1.25rem; --space-6: 1.5rem; --space-8: 2rem; --space-10: 2.5rem;
  --space-12: 3rem; --space-16: 4rem; --space-20: 5rem; --space-24: 6rem; --space-32: 8rem;

  --rail-width: 232px;
  --rail-width-collapsed: 72px;
  --topbar-height: 64px;
}

[data-theme="dark"] {
  --color-bg: #14150F;
  --color-surface: #191A13;
  --color-surface-2: #1F2018;
  --color-surface-offset: #262719;
  --color-divider: #2C2D1E;
  --color-border: #33341F;
  --color-text: #F2F1E8;
  --color-text-muted: #A8A996;
  --color-text-faint: #6E6F5C;
  --color-text-inverse: #14150F;
  --color-primary: #6FAE99;
  --color-primary-hover: #85BFAB;
  --color-primary-active: #9BCFBD;
  --color-primary-highlight: #24352E;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.35);
  --shadow-lg: 0 20px 48px rgba(0,0,0,0.45);
}

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

html {
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: var(--space-16);
}

body {
  min-height: 100dvh;
  line-height: 1.6;
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition-slow), color var(--transition-slow);
}

img, picture, video, canvas, svg { display: block; max-width: 100%; height: auto; }
ul[role="list"] { list-style: none; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 { font-family: var(--font-display); text-wrap: balance; line-height: 1.12; letter-spacing: -0.01em; }
p { text-wrap: pretty; }

.skip-link {
  position: absolute; left: -9999px; top: var(--space-2);
  background: var(--color-primary); color: var(--color-text-inverse);
  padding: var(--space-2) var(--space-4); border-radius: var(--radius-sm); z-index: 200;
}
.skip-link:focus { left: var(--space-2); }

:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* Topbar */
.topbar {
  position: fixed; top: 0; left: 0; right: 0; height: var(--topbar-height);
  display: flex; align-items: center; gap: var(--space-4);
  padding-inline: var(--space-4);
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-divider);
  z-index: 100;
}
.rail-toggle, .theme-toggle {
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: var(--radius-md);
  color: var(--color-text); background: transparent;
  transition: background var(--transition-interactive), transform var(--transition-interactive);
}
.rail-toggle:hover, .theme-toggle:hover { background: var(--color-surface-2); }
.rail-toggle:active, .theme-toggle:active { transform: scale(0.92); }

.brand { display: flex; align-items: center; gap: var(--space-2); font-weight: 600; font-size: var(--text-sm); white-space: nowrap; }
.brand img { border-radius: var(--radius-sm); }
.brand em { font-style: normal; color: var(--color-text-muted); font-weight: 500; margin-left: var(--space-1); }

.topbar-spacer { flex: 1; }
.topbar-icons { display: flex; align-items: center; gap: var(--space-1); }
.icon-link {
  display: flex; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: var(--radius-md); color: var(--color-text-muted);
  transition: background var(--transition-interactive), color var(--transition-interactive);
}
.icon-link:hover { background: var(--color-surface-2); color: var(--color-text); }

/* Rail */
.rail {
  position: fixed; top: var(--topbar-height); left: 0; bottom: 0;
  width: var(--rail-width); background: var(--color-surface);
  border-right: 1px solid var(--color-divider);
  transition: width var(--transition-slow);
  overflow: hidden; z-index: 90;
}
.rail.collapsed { width: var(--rail-width-collapsed); }
.rail nav { padding: var(--space-4) var(--space-3); }
.rail-item {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3); border-radius: var(--radius-md);
  color: var(--color-text-muted); font-size: var(--text-sm); font-weight: 500;
  margin-bottom: var(--space-1); white-space: nowrap;
  transition: background var(--transition-interactive), color var(--transition-interactive), transform var(--transition-interactive);
}
.rail-item:hover { background: var(--color-surface-2); color: var(--color-text); transform: translateX(2px); }
.rail-item.active { background: var(--color-primary-highlight); color: var(--color-primary); }
.rail-item svg { flex-shrink: 0; }
.rail.collapsed .rail-item span { opacity: 0; width: 0; }
.rail.collapsed .rail-item { justify-content: center; }

/* Content */
.content {
  margin-left: var(--rail-width);
  margin-top: var(--topbar-height);
  transition: margin-left var(--transition-slow);
  min-height: calc(100dvh - var(--topbar-height));
}
.rail.collapsed ~ .content { margin-left: var(--rail-width-collapsed); }

/* Hero */
.hero {
  max-width: 920px;
  padding: clamp(var(--space-16), 10vw, var(--space-32)) var(--space-8) var(--space-16);
  animation: fadeUp 700ms cubic-bezier(0.16,1,0.3,1) both;
}
.hero-eyebrow {
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.08em;
  color: var(--color-primary); text-transform: uppercase; margin-bottom: var(--space-4);
}
.hero-title { font-size: var(--text-3xl); font-weight: 500; margin-bottom: var(--space-6); }
.hero-sub { font-size: var(--text-lg); color: var(--color-text-muted); max-width: 62ch; margin-bottom: var(--space-8); }
.hero-actions { display: flex; gap: var(--space-3); flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: var(--space-3) var(--space-6); border-radius: var(--radius-full);
  font-size: var(--text-sm); font-weight: 600;
  transition: background var(--transition-interactive), color var(--transition-interactive), transform var(--transition-interactive), box-shadow var(--transition-interactive);
}
.btn-primary { background: var(--color-primary); color: var(--color-text-inverse); }
.btn-primary:hover { background: var(--color-primary-hover); box-shadow: var(--shadow-md); transform: translateY(-1px); }
.btn-primary:active { transform: translateY(0) scale(0.98); }
.btn-ghost { border: 1px solid var(--color-border); color: var(--color-text); }
.btn-ghost:hover { background: var(--color-surface-2); }

/* Projects */
.projects { padding: 0 var(--space-8) var(--space-32); max-width: 1200px; }
.section-head { margin-bottom: var(--space-8); animation: fadeUp 700ms cubic-bezier(0.16,1,0.3,1) both; }
.section-head h2 { font-size: var(--text-xl); font-weight: 500; margin-bottom: var(--space-2); }
.section-head p { color: var(--color-text-muted); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr));
  gap: var(--space-6);
}
.project-card {
  display: block; border-radius: var(--radius-lg);
  background: var(--color-surface); border: 1px solid var(--color-divider);
  overflow: hidden;
  transition: transform var(--transition-interactive), box-shadow var(--transition-interactive), border-color var(--transition-interactive);
  animation: fadeUp 700ms cubic-bezier(0.16,1,0.3,1) both;
  animation-delay: calc(var(--stagger, 0) * 90ms + 150ms);
}
.project-card.featured:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--color-primary); }
.card-media { aspect-ratio: 16/9; background: var(--color-surface-2); overflow: hidden; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform 600ms cubic-bezier(0.16,1,0.3,1); }
.project-card.featured:hover .card-media img { transform: scale(1.04); }
.card-media.placeholder { background: repeating-linear-gradient(135deg, var(--color-surface-2) 0 12px, var(--color-surface-offset) 12px 24px); }
.card-body { padding: var(--space-5); }
.card-tag { font-size: var(--text-xs); font-weight: 600; color: var(--color-primary); text-transform: uppercase; letter-spacing: 0.04em; }
.card-body h3 { font-size: var(--text-lg); font-weight: 500; margin: var(--space-2) 0 var(--space-2); }
.card-body p { color: var(--color-text-muted); font-size: var(--text-sm); }

.project-card.muted { cursor: default; opacity: 0.55; }
.project-card.muted .card-tag { color: var(--color-text-faint); }
.project-card.muted:hover { transform: none; box-shadow: none; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-divider);
  padding: var(--space-8);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-4);
  color: var(--color-text-faint); font-size: var(--text-xs);
}
.footer-links { display: flex; gap: var(--space-5); }
.footer-links a { transition: color var(--transition-interactive); }
.footer-links a:hover { color: var(--color-primary); }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Mobile */
@media (max-width: 900px) {
  .rail { transform: translateX(-100%); width: min(280px, 84vw); transition: transform var(--transition-slow); }
  .rail.mobile-open { transform: translateX(0); }
  .rail.collapsed { width: min(280px, 84vw); }
  .content, .rail.collapsed ~ .content { margin-left: 0; }
  .hero { padding-inline: var(--space-5); }
  .projects { padding-inline: var(--space-5); }
  .brand span { display: none; }
}


/* Hero stats */
.hero-stats {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: var(--space-6); margin-top: var(--space-12);
  padding-top: var(--space-8); border-top: 1px solid var(--color-divider);
}
.hero-stats dt { font-size: var(--text-sm); font-weight: 600; color: var(--color-primary); margin-bottom: var(--space-1); }
.hero-stats dd { font-size: var(--text-sm); color: var(--color-text-muted); }

/* Card cta + code styling */
.card-cta { display: inline-block; margin-top: var(--space-3); font-size: var(--text-xs); font-weight: 600; color: var(--color-primary); }
.card-body code { background: var(--color-surface-2); padding: 0.1em 0.4em; border-radius: var(--radius-sm); font-size: 0.9em; }

/* Principles section */
.principles { padding: var(--space-16) var(--space-8) var(--space-32); max-width: 1200px; }
.principle-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: var(--space-10); }
.principle {
  animation: fadeUp 700ms cubic-bezier(0.16,1,0.3,1) both;
  animation-delay: calc(var(--stagger, 0) * 90ms + 150ms);
  border-top: 1px solid var(--color-divider); padding-top: var(--space-5);
}
.principle-index { font-family: var(--font-display); font-size: var(--text-lg); color: var(--color-text-faint); }
.principle h3 { font-size: var(--text-lg); font-weight: 500; margin: var(--space-3) 0 var(--space-2); }
.principle p { color: var(--color-text-muted); font-size: var(--text-sm); max-width: 40ch; }

/* polish.css — Step 4 final polish: micro-interactions, smoothness, delightful details */

/* Enhanced hover & active states */
.card-media:not(.placeholder) a:hover .card-media img,
.project-card.featured:hover .card-media img {
  transform: scale(1.05);
  filter: brightness(1.02);
}

餅::selection {
  background: oklch(from var(--color-primary) l c h / 0.3);
  color: var(--color-text);
}

/* Button micro-interactions */
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px color-mix(in oklab, var(--color-primary) 30%, transparent);
}
.btn-primary:active {
  transform: translateY(0) scale(0.98);
}
.btn-ghost:hover {
  transform: translateY(-1px);
  background: var(--color-surface-2);
}

/* Card hover lift with subtle shadow */
.project-card.featured:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px color-mix(in oklab, var(--color-primary) 15%, transparent);
  border-color: var(--color-primary);
}

/* Breadcrumb hover */
.breadcrumb a:hover {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

/* Progress indicator for section scroll */
.charter-content {
  scroll-padding-top: var(--space-16);
  scroll-behavior: smooth;
}

/* Smooth scroll for anchor links */
html {
  scroll-behavior: smooth;
}

/* Enhanced focus states */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 4px;
  border-radius: var(--radius-md);
  box-shadow: 0 0 0 6px color-mix(in oklab, var(--color-primary) 10%, transparent);
}

/* Animated underline for section headings */
.charter-section h2, .project-section h2 {
  position: relative;
}
.charter-section h2::after, .project-section h2::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 40px;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition-slow);
}
.charter-section:hover h2::after, .project-section:hover h2::after {
  width: 100px;
}

/* Fade-in for principles */
.principle:nth-child(1) { animation-delay: 0.2s; }
.principle:nth-child(2) { animation-delay: 0.4s; }
.principle:nth-child(3) { animation-delay: 0.6s; }

/* Card stagger timing */
.project-card:nth-child(1) { animation-delay: 0.15s; }
.project-card:nth-child(2) { animation-delay: 0.25s; }
.project-card:nth-child(3) { animation-delay: 0.35s; }
.project-card:nth-child(4) { animation-delay: 0.45s; }

/* Enhanced hover for nav items */
.rail-item:hover svg {
  transform: scale(1.1);
}
.rail-item.active svg {
  color: var(--color-primary);
}

/* Theme toggle micro-interaction */
.theme-toggle:hover svg {
  transform: rotate(20deg);
}
.theme-toggle:active svg {
  transform: rotate(-20deg) scale(0.9);
}

/* Testimonial quote styling (if added later) */
.quote {
  font-family: var(--font-display);
  font-style: italic;
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  position: relative;
  padding-left: var(--space-6);
}
.quote::before {
  content: '"';
  position: absolute;
  left: 0;
  top: -0.5em;
  font-size: 3em;
  color: var(--color-primary-highlight);
  line-height: 0;
}

/* Loading shimmer for skeleton states */
@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.skeleton {
  background: linear-gradient(90deg,
    var(--color-surface-offset) 25%,
    var(--color-surface-dynamic) 50%,
    var(--color-surface-offset) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
}

/* Reduced motion respected */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .project-card.featured:hover {
    transform: none;
  }
  .btn-primary:hover, .btn-ghost:hover {
    transform: none;
  }
}


/* === page.css merged === */
/* page.css — shared subpage styles for projects.html + charter.html */

.charter-detail, .projects-page { max-width: 900px; padding-inline: var(--space-8); padding-bottom: var(--space-32); }

.page-hero { padding-block: var(--space-16); margin-bottom: var(--space-16); animation: fadeUp 700ms cubic-bezier(0.16,1,0.3,1) both; }
.page-eyebrow { font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.08em; color: var(--color-primary); text-transform: uppercase; margin-bottom: var(--space-4); }
.page-title { font-size: var(--text-2xl); font-weight: 500; margin-bottom: var(--space-4); }
.page-lede { font-size: var(--text-lg); color: var(--color-text-muted); max-width: 68ch; }

.projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(min(320px, 100%), 1fr)); gap: var(--space-6); }
.projects-grid .project-card { animation: fadeUp 700ms cubic-bezier(0.16,1,0.3,1) both; animation-delay: calc(var(--stagger, 0) * 90ms + 150ms); }

.charter-content { padding-block: var(--space-10); border-top: 1px solid var(--color-divider); }
.charter-section { padding-bottom: var(--space-10); border-bottom: 1px dashed var(--color-divider); }
.charter-section:last-child { border-bottom: none; padding-bottom: 0; }
.charter-section h2 { font-size: var(--text-xl); font-weight: 500; margin-bottom: var(--space-4); }
.charter-section p { color: var(--color-text-muted); max-width: 70ch; margin-bottom: var(--space-3); }
.charter-section code { background: var(--color-surface-2); padding: 0.1em 0.4em; border-radius: var(--radius-sm); font-size: 0.9em; }

.principles-block { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--space-8); margin-top: var(--space-6); }
.principle { animation: fadeUp 700ms cubic-bezier(0.16,1,0.3,1) both; border-top: 2px solid var(--color-primary); padding-top: var(--space-4); }
.principle-index { font-family: var(--font-display); font-size: var(--text-lg); color: var(--color-text-faint); }
.principle h3 { font-size: var(--text-lg); font-weight: 500; margin: var(--space-3) 0 var(--space-2); }
.principle p { font-size: var(--text-sm); margin-bottom: 0; }

.commitment-list { list-style: none; display: flex; flex-direction: column; gap: var(--space-3); margin-top: var(--space-4); }
.commitment-list li { color: var(--color-text-muted); padding-left: var(--space-5); position: relative; }
.commitment-list li::before {
  content: ''; position: absolute; left: 0; top: 0.6em;
  width: 6px; height: 6px; border-radius: var(--radius-full); background: var(--color-primary);
}
.commitment-list li strong { color: var(--color-text); }


/* Additional polish for page.css */
.charter-section:hover {
  background: color-mix(in oklab, var(--color-surface) 95%, transparent);
}
.principle:hover {
  border-top-color: var(--color-primary-hover);
}
.principle:hover h3 {
  color: var(--color-primary);
}
.commitment-list li:hover {
  color: var(--color-text);
}
.commitment-list li:hover::before {
  background: var(--color-primary-hover);
  transform: scale(1.2);
}


/* === project.css merged === */
/* project.css — detail subpage styles, extends styles.css tokens */

.project-detail { max-width: 900px; padding-inline: var(--space-8); padding-bottom: var(--space-32); }

.breadcrumb {
  display: flex; gap: var(--space-2); align-items: center;
  font-size: var(--text-xs); color: var(--color-text-faint);
  padding-top: var(--space-8); margin-bottom: var(--space-8);
}
.breadcrumb a { color: var(--color-text-muted); transition: color var(--transition-interactive); }
.breadcrumb a:hover { color: var(--color-primary); }

.project-hero {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: var(--space-10);
  align-items: center; margin-bottom: var(--space-16);
  animation: fadeUp 700ms cubic-bezier(0.16,1,0.3,1) both;
}
.badge-row { display: flex; gap: var(--space-2); flex-wrap: wrap; margin-bottom: var(--space-4); }
.badge {
  font-size: var(--text-xs); font-weight: 600; padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full); background: var(--color-primary-highlight); color: var(--color-primary);
}
.project-hero h1 { font-size: var(--text-2xl); font-weight: 500; margin-bottom: var(--space-4); }
.project-lede { font-size: var(--text-lg); color: var(--color-text-muted); margin-bottom: var(--space-6); }
.project-lede code { background: var(--color-surface-2); padding: 0.1em 0.4em; border-radius: var(--radius-sm); font-size: 0.85em; }
.project-hero-media img { border-radius: var(--radius-lg); border: 1px solid var(--color-divider); }

.project-section {
  padding-block: var(--space-10);
  border-top: 1px solid var(--color-divider);
  animation: fadeUp 700ms cubic-bezier(0.16,1,0.3,1) both;
}
.project-section h2 { font-size: var(--text-xl); font-weight: 500; margin-bottom: var(--space-4); }
.project-section p { color: var(--color-text-muted); max-width: 70ch; margin-bottom: var(--space-3); }
.project-section code { background: var(--color-surface-2); padding: 0.1em 0.4em; border-radius: var(--radius-sm); font-size: 0.9em; }

.code-block {
  background: var(--color-surface-2); border: 1px solid var(--color-divider);
  border-radius: var(--radius-md); padding: var(--space-4) var(--space-5);
  overflow-x: auto; margin-bottom: var(--space-4);
  font-family: 'JetBrains Mono', 'Menlo', monospace; font-size: var(--text-sm);
}
.code-block code { background: none; padding: 0; font-size: inherit; }

.feature-list, .plain-list { list-style: none; display: flex; flex-direction: column; gap: var(--space-3); }
.feature-list li, .plain-list li { color: var(--color-text-muted); padding-left: var(--space-5); position: relative; }
.feature-list li::before, .plain-list li::before {
  content: ''; position: absolute; left: 0; top: 0.6em;
  width: 6px; height: 6px; border-radius: var(--radius-full); background: var(--color-primary);
}
.feature-list li strong { color: var(--color-text); }

.security-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: var(--space-6); margin-top: var(--space-6); }
.security-item { border-left: none; border-top: 2px solid var(--color-primary); padding-top: var(--space-3); }
.security-item h3 { font-size: var(--text-sm); font-weight: 600; margin-bottom: var(--space-2); }
.security-item p { font-size: var(--text-sm); margin-bottom: 0; }

.cta-section { border-bottom: none; }

@media (max-width: 800px) {
  .project-hero { grid-template-columns: 1fr; }
  .project-hero-media { order: -1; }
}


/* === close.css merged === */
/* close.css — GitHub Pages config + final polish helpers */

/* _config.yml for GitHub Pages (be a text file, not actual yaml) */
/*
title: BLUECARBONS Open Source
description: Open, auditable, agent-ready software built in public.
baseurl: ""
url: "https://opensource.bluecarbons.com"
theme: minima
*/

/* Add to styles.css for final polish */
.breadcrumb {
  display: flex; gap: var(--space-2); align-items: center;
  font-size: var(--text-xs); color: var(--color-text-faint);
  padding-top: var(--space-8); margin-bottom: var(--space-8);
}
.breadcrumb a { color: var(--color-text-muted); transition: color var(--transition-interactive); }
.breadcrumb a:hover { color: var(--color-primary); }