:root {
  --bg-canvas: #eef7f2;
  --bg-surface: rgba(220, 238, 226, 0.78);
  --bg-surface-solid: #dceee2;
  --bg-surface-hover: rgba(202, 230, 212, 0.92);
  --text-primary: #1f2937;
  --text-muted: #374151;
  --accent-primary: #14532d;
  --accent-secondary: #166534;
  --border-subtle: rgba(20, 83, 45, 0.25);
  --ease-kinetic: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-elevation: 0 12px 32px -4px rgba(20, 83, 45, 0.12);
  --glow-accent: 0 0 24px -4px rgba(20, 83, 45, 0.25);
  --glass-backdrop: blur(16px) saturate(160%);
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
}

*, *::before, *::after {
  box-sizing: border-box;
  border-radius: 0 !important;
}

html, body {
  margin: 0;
  padding: 0;
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.65;
  overflow-wrap: anywhere;
  hyphens: auto;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border: 1px solid var(--border-subtle);
}

a {
  color: var(--accent-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease, background-color 0.2s ease;
}

a:hover {
  color: var(--accent-secondary);
}

.tagline-bar {
  background-color: var(--accent-primary);
  color: #eef7f2;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.45rem 1.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.tagline-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.site-header {
  position: relative;
  background: var(--bg-surface-solid);
  border-bottom: 1px solid var(--border-subtle);
  padding: 1rem 1.5rem;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.brand-link {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--accent-primary);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 24px;
  height: 24px;
  border: 2px solid var(--accent-primary);
  display: inline-grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  padding: 2px;
}

.brand-mark span {
  background-color: var(--accent-primary);
}

.brand-mark span:nth-child(2) {
  background-color: transparent;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.main-nav a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  text-decoration: none;
  color: var(--text-primary);
  padding: 0.35rem 0.5rem;
  border: 1px solid transparent;
}

.main-nav a:hover, .main-nav a[aria-current="page"] {
  border-color: var(--accent-primary);
  background-color: var(--bg-canvas);
  color: var(--accent-primary);
}

.mobile-menu-btn {
  display: none;
  background: transparent;
  border: 1px solid var(--accent-primary);
  color: var(--accent-primary);
  font-size: 1.25rem;
  line-height: 1;
  padding: 0.35rem 0.65rem;
  cursor: pointer;
  font-family: var(--font-mono);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.planning-grid-bg {
  background-image: 
    linear-gradient(to right, rgba(20, 83, 45, 0.07) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(20, 83, 45, 0.07) 1px, transparent 1px);
  background-size: 32px 32px;
}

.hero-section {
  padding: 4rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 3rem;
  align-items: center;
}

.mono-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-primary);
  display: inline-block;
  margin-bottom: 0.75rem;
  padding: 0.2rem 0.55rem;
  background-color: var(--bg-surface-solid);
  border: 1px solid var(--border-subtle);
}

h1, h2, h3, h4 {
  color: var(--text-primary);
  line-height: 1.2;
  margin-top: 0;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.1rem);
  margin-bottom: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 2.8vw, 2.15rem);
  margin-bottom: 1rem;
}

h3 {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  margin-bottom: 0.65rem;
  color: var(--accent-primary);
}

.lead {
  font-size: 1.125rem;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
  max-width: 65ch;
}

.btn-outline {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-primary);
  background-color: var(--bg-canvas);
  border: 2px solid var(--accent-primary);
  padding: 0.8rem 1.5rem;
  text-decoration: none;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.25s var(--ease-kinetic), box-shadow 0.25s var(--ease-kinetic), background-color 0.2s ease, color 0.2s ease;
}

.btn-outline:hover {
  background-color: var(--accent-primary);
  color: #eef7f2;
  transform: translateY(-3px);
  box-shadow: var(--shadow-elevation);
}

.hero-collage {
  position: relative;
  min-height: 440px;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-template-rows: repeat(12, 36px);
}

.collage-item {
  position: relative;
  box-shadow: var(--shadow-elevation);
  background: var(--bg-surface-solid);
  padding: 0.4rem;
  border: 1px solid var(--accent-primary);
}

.collage-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.collage-1 {
  grid-column: 1 / 8;
  grid-row: 1 / 8;
  z-index: 2;
}

.collage-2 {
  grid-column: 6 / 13;
  grid-row: 3 / 10;
  z-index: 3;
}

.collage-3 {
  grid-column: 2 / 9;
  grid-row: 7 / 13;
  z-index: 4;
}

.collage-caption {
  position: absolute;
  bottom: 0.4rem;
  left: 0.4rem;
  background: rgba(238, 247, 242, 0.92);
  backdrop-filter: var(--glass-backdrop);
  padding: 0.2rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-primary);
  border: 1px solid var(--border-subtle);
}

.pathway-stream {
  position: relative;
  padding: 3rem 0;
}

.pathway-stream::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 24px;
  width: 1px;
  background-color: var(--accent-primary);
}

.pathway-node {
  position: relative;
  padding-left: 4rem;
  padding-top: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-subtle);
}

.node-junction {
  position: absolute;
  left: 8px;
  top: 2.75rem;
  width: 33px;
  height: 33px;
  background-color: var(--bg-canvas);
  border: 2px solid var(--accent-primary);
  color: var(--accent-primary);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.glass-panel {
  background: var(--bg-surface);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--border-subtle);
  padding: 1.75rem;
  transition: transform 0.3s var(--ease-kinetic), box-shadow 0.3s var(--ease-kinetic);
}

.glass-panel:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-elevation);
}

.grid-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.split-card {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: 2rem;
  align-items: center;
  margin-top: 1.5rem;
}

.annotated-figure {
  margin: 1.5rem 0;
  border: 1px solid var(--accent-primary);
  background: var(--bg-surface-solid);
  padding: 1rem;
}

.annotated-figure figcaption {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.75rem;
  padding-top: 0.5rem;
  border-top: 1px dashed var(--border-subtle);
}

.table-wrapper {
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid var(--border-subtle);
  background: var(--bg-surface);
  backdrop-filter: var(--glass-backdrop);
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.92rem;
}

th, td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-subtle);
}

th {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  background-color: rgba(20, 83, 45, 0.08);
  color: var(--accent-primary);
}

details.design-note, details.faq-item {
  background: var(--bg-surface);
  backdrop-filter: var(--glass-backdrop);
  border: 1px solid var(--border-subtle);
  margin-bottom: 0.85rem;
  padding: 1rem 1.25rem;
}

details summary {
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--accent-primary);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

details summary::-webkit-details-marker {
  display: none;
}

details summary::after {
  content: "[+]";
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

details[open] summary::after {
  content: "[-]";
}

details .note-body {
  margin-top: 0.85rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

.prose-block {
  max-width: 70ch;
}

.prose-centered {
  max-width: 70ch;
  margin: 0 auto;
}

.composer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 1.5rem;
}

.form-group {
  margin-bottom: 1.15rem;
}

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
  color: var(--accent-primary);
}

.form-control {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--accent-primary);
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

.form-control:focus {
  outline: 2px solid var(--accent-primary);
  outline-offset: 1px;
}

.composer-output {
  background-color: var(--bg-canvas);
  border: 1px solid var(--accent-primary);
  padding: 1rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  white-space: pre-wrap;
  min-height: 220px;
  margin-bottom: 1rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.status-msg {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-primary);
  margin-top: 0.5rem;
  min-height: 1.2rem;
}

.site-footer {
  background-color: var(--bg-surface-solid);
  border-top: 2px solid var(--accent-primary);
  padding: 3.5rem 1.5rem 2.5rem;
  margin-top: 4rem;
  font-size: 0.9rem;
}

.footer-grid {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-subtle);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-bottom {
  max-width: 1200px;
  margin: 1.5rem auto 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.reveal-item {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s var(--ease-kinetic), transform 0.6s var(--ease-kinetic);
}

.js-enabled .reveal-item {
  opacity: 0;
  transform: translateY(18px);
}

.js-enabled .reveal-item.reveal-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .hero-grid, .split-card, .composer-grid {
    grid-template-columns: 1fr;
  }
  .hero-collage {
    min-height: 360px;
  }
}

@media (max-width: 768px) {
  .mobile-menu-btn {
    display: inline-block;
  }
  .main-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--bg-surface-solid);
    border-bottom: 2px solid var(--accent-primary);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.5rem;
    z-index: 50;
  }
  .main-nav.nav-open {
    display: flex;
  }
  .pathway-stream::before {
    left: 16px;
  }
  .node-junction {
    left: 0;
  }
  .pathway-node {
    padding-left: 3rem;
  }
}

@media (prefers-reduced-motion: reduce){*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}