/* Becoming Earthians — Styling */
/* Orientation before explanation. Compression without reduction. */

/* ============================================
   LOCAL FONTS
   ============================================ */

/* Cormorant - Headings */
@font-face {
  font-family: 'Cormorant';
  src: url('../fonts/cormorant-v24-latin-regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Cormorant';
  src: url('../fonts/cormorant-v24-latin-italic.woff2') format('woff2');
  font-weight: 400;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'Cormorant';
  src: url('../fonts/cormorant-v24-latin-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Cormorant';
  src: url('../fonts/cormorant-v24-latin-600.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Cormorant';
  src: url('../fonts/cormorant-v24-latin-700.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* Nunito - Body */
@font-face {
  font-family: 'Nunito';
  src: url('../fonts/nunito-v32-latin-regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Nunito';
  src: url('../fonts/nunito-v32-latin-500.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Nunito';
  src: url('../fonts/nunito-v32-latin-600.woff2') format('woff2');
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

/* ============================================
   CSS VARIABLES
   ============================================ */

:root {
  /* Earth palette - inspired by Collective Futurecrafting */
  --color-terracotta: #D68A59;
  --color-charcoal: #423D33;
  --color-olive: #7B9361;
  --color-sun-gold: #E3B646;
  --color-sky-blue: #A7D8F0;

  /* Functional colors */
  --color-text: var(--color-charcoal);
  --color-text-muted: #6b6358;
  --color-bg: #faf9f7;
  --color-bg-warm: #f5f0e8;
  --color-border: #e0dbd3;
  --color-accent: var(--color-terracotta);
  --color-link: var(--color-charcoal);
  --color-link-hover: var(--color-terracotta);

  /* Typography */
  --font-heading: 'Cormorant', Georgia, serif;
  --font-body: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'SF Mono', Consolas, monospace;

  /* Layout */
  --max-width: 900px;
  --max-width-wide: 1100px;
  --spacing: 1.5rem;
  --spacing-lg: 3rem;
}

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

html {
  font-size: 18px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-weight: 400;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.7;
}

::selection {
  background-color: var(--color-sun-gold);
  color: var(--color-charcoal);
}

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing);
}

main .container {
  padding-top: var(--spacing);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */

.site-header {
  background: var(--color-charcoal);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 1rem;
  max-width: var(--max-width-wide);
}

.site-title {
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-sun-gold);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.site-title:hover {
  color: #fff;
}

.site-nav ul {
  display: flex;
  list-style: none;
  gap: 0.25rem;
  flex-wrap: wrap;
}

.site-nav a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: 0.9rem;
  padding: 0.2rem 0.8rem 0.4rem;
  border-radius: 4px;
  transition: all 0.2s ease;
}

.site-nav a:hover {
  color: var(--color-sun-gold);
  background: rgba(255, 255, 255, 0.08);
}

.site-nav a[aria-current="page"] {
  color: var(--color-sun-gold);
  background: rgba(255, 255, 255, 0.1);
}

/* Nav toggle (hamburger) */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  margin-right: -0.5rem;
}

.nav-toggle-icon,
.nav-toggle-icon::before,
.nav-toggle-icon::after {
  display: block;
  width: 24px;
  height: 2px;
  background: rgba(255, 255, 255, 0.85);
  transition: all 0.2s ease;
}

.nav-toggle-icon {
  position: relative;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: '';
  position: absolute;
  left: 0;
}

.nav-toggle-icon::before {
  top: -7px;
}

.nav-toggle-icon::after {
  top: 7px;
}

/* Hamburger to X animation */
.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-charcoal);
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing);
}

h1 {
  font-size: 2.2rem;
  font-weight: 700;
}

h2 {
  font-size: 1.6rem;
  position: relative;
  padding-bottom: 0.75rem;
}

h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 3px;
  background: var(--color-terracotta);
}

h3 {
  font-size: 1.25rem;
}

h1:first-child,
h2:first-child,
.page-header h1,
.section-header h1 {
  margin-top: 0;
}

p {
  margin-bottom: var(--spacing);
}

a {
  color: var(--color-link);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-link-hover);
}

blockquote {
  border-left: 3px solid var(--color-terracotta);
  padding: var(--spacing);
  margin: var(--spacing-lg) 0;
  background: var(--color-bg-warm);
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--color-text);
}

blockquote p:last-child {
  margin-bottom: 0;
}

code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--color-bg-warm);
  padding: 0.15em 0.4em;
  border-radius: 3px;
}

pre {
  background: var(--color-charcoal);
  color: #f0ede8;
  padding: var(--spacing);
  overflow-x: auto;
  margin: var(--spacing) 0;
  border-radius: 6px;
  font-size: 0.9rem;
}

pre code {
  background: none;
  padding: 0;
  color: inherit;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--spacing) 0;
  font-size: 0.95rem;
}

th, td {
  text-align: left;
  padding: 0.75rem;
  border-bottom: 1px solid var(--color-border);
}

th {
  font-weight: 600;
  background: var(--color-bg-warm);
}

/* Lists */
ul, ol {
  margin-bottom: var(--spacing);
  padding-left: 1.5rem;
}

li {
  margin-bottom: 0.5rem;
}

li::marker {
  color: var(--color-terracotta);
}

/* ============================================
   MAIN CONTENT AREA
   ============================================ */

main {
  padding: 4rem 0 var(--spacing-lg);
  min-height: 60vh;
}

/* ============================================
   HOME PAGE
   ============================================ */

/* Hero section */
.hero {
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  padding: var(--spacing-lg) 0;
  margin-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.hero-image {
  flex-shrink: 0;
  width: 200px;
  height: 200px;
}

.hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.hero-content h1 {
  font-size: 2.5rem;
  margin: 0 0 0.5rem 0;
}

.subtitle {
  font-family: var(--font-heading);
  color: var(--color-text-muted);
  font-size: 1.2rem;
  font-style: italic;
  margin: 0;
}

.home-intro {
  margin-bottom: var(--spacing-lg);
}

.home-intro blockquote {
  font-size: 1.1rem;
}

.home-entry-points h2 {
  font-size: 1.1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-weight: 600;
  margin-bottom: var(--spacing);
}

.home-entry-points h2::after {
  display: none;
}

.entry-category {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin: 1.5rem 0 0.5rem 0;
}

.entry-category:first-of-type {
  margin-top: 0;
}

.entry-points {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 0.75rem;
}

.entry-points li a {
  display: block;
  padding: 1.25rem;
  background: var(--color-bg-warm);
  border-radius: 6px;
  text-decoration: none;
  border-left: 3px solid transparent;
  transition: all 0.2s ease;
}

.entry-points li a:hover {
  border-left-color: var(--color-terracotta);
  background: #efe9de;
}

.entry-points strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}

.entry-points span {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ============================================
   PAGE LAYOUTS
   ============================================ */

.page-header,
.question-header,
.method-header,
.project-header,
.section-header {
  margin-bottom: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  padding-bottom: var(--spacing);
  border-bottom: 1px solid var(--color-border);
}

.label {
  display: inline-block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-terracotta);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.summary {
  font-family: var(--font-heading);
  color: var(--color-text-muted);
  font-size: 1.15rem;
  font-style: italic;
  margin-top: 0.5rem;
}

.scale {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.75rem;
  padding: 0.35rem 0.75rem;
  background: var(--color-bg-warm);
  border-radius: 4px;
}

.scale i {
  color: var(--color-terracotta);
  font-size: 1rem;
}

/* Engage links (About page) */
.engage-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: var(--spacing);
}

.engage-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  background: var(--color-bg-warm);
  border-radius: 4px;
  text-decoration: none;
  color: var(--color-text);
  transition: all 0.2s ease;
}

.engage-link:hover {
  background: var(--color-charcoal);
  color: var(--color-sun-gold);
}

.engage-link i {
  font-size: 1.1rem;
  color: var(--color-terracotta);
}

.engage-link:hover i {
  color: var(--color-sun-gold);
}

/* Related section */
.related {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing);
  border-top: 1px solid var(--color-border);
}

.related h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  font-family: var(--font-body);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.related h3::after {
  display: none;
}

.related ul {
  list-style: none;
  padding: 0;
}

.related li {
  margin-bottom: 0.4rem;
}

/* Project links */
.project-links {
  margin-top: var(--spacing);
}

.repo-link {
  display: inline-block;
  padding: 0.6rem 1.2rem;
  background: var(--color-charcoal);
  color: var(--color-sun-gold);
  text-decoration: none;
  border-radius: 4px;
  font-size: 0.9rem;
  transition: background 0.2s ease;
}

.repo-link:hover {
  background: #35312a;
  color: #fff;
}

.repo-coming-soon {
  display: inline-block;
  padding: 0.6rem 0;
  color: var(--color-charcoal);
  opacity: 0.5;
  font-style: italic;
  font-size: 0.9rem;
}

/* ============================================
   COLLECTION LISTS (Questions, Methods, Projects)
   ============================================ */

.collection-list {
  list-style: none;
  padding: 0;
}

.collection-item {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border);
}

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

.collection-item a {
  text-decoration: none;
  display: block;
}

.collection-item h2 {
  font-size: 1.3rem;
  margin: 0 0 0.5rem 0;
  color: var(--color-text);
  padding-bottom: 0;
}

.collection-item h2::after {
  display: none;
}

.collection-item:hover h2 {
  color: var(--color-terracotta);
}

.collection-item p {
  color: var(--color-text-muted);
  margin: 0;
  font-size: 0.95rem;
}

.project-meta {
  margin-top: 0.75rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.project-meta .status,
.project-meta .scale {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--color-bg-warm);
  color: var(--color-text-muted);
  padding: 0.25em 0.6em;
  border-radius: 3px;
}

.project-meta .status {
  background: rgba(123, 147, 97, 0.15);
  color: var(--color-olive);
}

/* ============================================
   CARDS
   ============================================ */

.card {
  background: var(--color-bg-warm);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1rem;
}

.card-header {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
}

.card-icon {
  font-size: 1.5rem;
  color: var(--color-terracotta);
  flex-shrink: 0;
  line-height: 1;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin: 0;
  line-height: 1.3;
}

.card-title::after {
  display: none;
}

.card-subtitle {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

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

.card-body p:last-child {
  margin-bottom: 0;
}

.card-footer {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.9rem;
}

.status-badge {
  display: inline-block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(123, 147, 97, 0.15);
  color: var(--color-olive);
  padding: 0.25em 0.6em;
  border-radius: 3px;
}

/* Card variants */
.card--outline {
  background: transparent;
  border: 1px solid var(--color-border);
}

.card--accent {
  border-left: 3px solid var(--color-terracotta);
}

.card--clickable {
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  display: block;
  color: inherit;
}

.card--clickable:hover {
  background: #efe9de;
  border-color: var(--color-terracotta);
}

.card--clickable:hover .card-title {
  color: var(--color-terracotta);
}

/* Central/featured card */
.central-question {
  margin-bottom: 1rem;
}

/* Card grid */
.card-grid {
  display: grid;
  gap: 1rem;
}

.card-grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card-grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

/* ============================================
   FOOTER
   ============================================ */

.site-footer {
  background: var(--color-bg-warm);
  padding: var(--spacing-lg) 0;
  margin-top: var(--spacing-lg);
  text-align: center;
  border-top: 1px solid var(--color-border);
}

.footer-text {
  font-family: var(--font-heading);
  color: var(--color-text-muted);
  font-size: 1rem;
  font-style: italic;
  margin-bottom: 0.5rem;
}

.footer-contact {
  font-size: 0.9rem;
}

.footer-contact a {
  color: var(--color-text-muted);
}

.footer-contact a:hover {
  color: var(--color-terracotta);
}

/* ============================================
   LINEAGE GRAPH
   ============================================ */

#lineage-graph {
  width: 100%;
  height: 500px;
  background: var(--color-bg-warm);
  border-radius: 8px;
  margin: var(--spacing) 0;
}

.node-detail {
  opacity: 0;
  transform: translateY(10px);
  transition: all 0.2s ease;
  padding: var(--spacing);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  margin-top: var(--spacing);
}

.node-detail.visible {
  opacity: 1;
  transform: translateY(0);
}

.node-detail strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.node-detail p {
  margin: 0;
  color: var(--color-text-muted);
}

.node-category {
  display: inline-block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: white;
  padding: 0.2rem 0.5rem;
  border-radius: 3px;
  margin-bottom: 0.5rem;
}

/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 640px) {
  html {
    font-size: 16px;
  }

  .site-header .container {
    flex-wrap: wrap;
    align-items: center;
  }

  .nav-toggle {
    display: block;
    order: 2;
    margin-left: auto;
  }

  .site-nav {
    display: none;
    width: 100%;
    order: 3;
    padding-top: 1rem;
  }

  .site-nav.is-open {
    display: block;
  }

  .site-nav ul {
    flex-direction: column;
    gap: 0;
  }

  .site-nav a {
    display: block;
    padding: 0.75rem 0;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .site-nav li:last-child a {
    border-bottom: none;
  }

  .hero {
    flex-direction: column;
    text-align: center;
  }

  .hero-image {
    width: 150px;
    height: 150px;
  }

  .hero-content h1 {
    font-size: 2rem;
  }

  h1 {
    font-size: 1.8rem;
  }

  h2 {
    font-size: 1.4rem;
  }
}

/* ============================================
   SCALE PROGRESSION (Why it matters sections)
   ============================================ */

.scale-progression {
  position: relative;
  margin: var(--spacing-lg) 0;
  padding-left: 2rem;
}

/* Vertical connecting line */
.scale-progression::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 0.5rem;
  bottom: 0.5rem;
  width: 2px;
  background: linear-gradient(
    to bottom,
    var(--color-terracotta) 0%,
    var(--color-olive) 50%,
    var(--color-sky-blue) 100%
  );
  border-radius: 1px;
}

.scale-item {
  position: relative;
  margin-bottom: 1.5rem;
  padding-bottom: 0.5rem;
}

.scale-item:last-child {
  margin-bottom: 0;
}

/* Node marker on the line */
.scale-item::before {
  content: '';
  position: absolute;
  left: -2rem;
  top: 0.35rem;
  width: 14px;
  height: 14px;
  background: var(--color-bg);
  border: 3px solid var(--color-terracotta);
  border-radius: 50%;
  z-index: 1;
}

/* Gradient the node colors based on position */
.scale-item:nth-child(1)::before { border-color: var(--color-terracotta); }
.scale-item:nth-child(2)::before { border-color: #c4854e; }
.scale-item:nth-child(3)::before { border-color: #a68952; }
.scale-item:nth-child(4)::before { border-color: var(--color-olive); }
.scale-item:nth-child(5)::before { border-color: #7fa37a; }
.scale-item:nth-child(6)::before { border-color: var(--color-sky-blue); }

/* Scale label badge */
.scale-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-bg);
  background: var(--color-terracotta);
  padding: 0.2rem 0.6rem;
  border-radius: 3px;
  margin-bottom: 0.5rem;
}

/* Match label color to node */
.scale-item:nth-child(1) .scale-label { background: var(--color-terracotta); }
.scale-item:nth-child(2) .scale-label { background: #c4854e; }
.scale-item:nth-child(3) .scale-label { background: #a68952; }
.scale-item:nth-child(4) .scale-label { background: var(--color-olive); }
.scale-item:nth-child(5) .scale-label { background: #7fa37a; }
.scale-item:nth-child(6) .scale-label { background: #6baed6; color: var(--color-charcoal); }

.scale-content {
  color: var(--color-text);
  line-height: 1.65;
}

.scale-content p {
  margin: 0;
}

/* Responsive */
@media (max-width: 640px) {
  .scale-progression {
    padding-left: 1.5rem;
  }

  .scale-item::before {
    left: -1.5rem;
    width: 12px;
    height: 12px;
  }

  .scale-progression::before {
    left: 5px;
  }
}

/* ============================================
   DIAGRAMS
   ============================================ */

.ecosystem-overview {
  margin-bottom: var(--spacing-lg);
}

.ecosystem-overview h2 {
  margin-bottom: 0.5rem;
}

.ecosystem-overview > p {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing);
}

figure.diagram {
  margin: var(--spacing-lg) 0;
  padding: 0;
}

figure.diagram img {
  width: 100%;
  max-width: 800px;
  height: auto;
  display: block;
  margin: 0 auto;
}

figure.diagram figcaption {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.75rem;
  font-style: italic;
}

/* Responsive */
@media (max-width: 640px) {
  figure.diagram {
    margin: var(--spacing) 0;
  }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }

  html {
    scroll-behavior: auto;
  }
}

a:focus {
  outline: 2px solid var(--color-terracotta);
  outline-offset: 2px;
}

a:focus:not(:focus-visible) {
  outline: none;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0;
  background: var(--color-charcoal);
  color: var(--color-sun-gold);
  padding: 0.5rem 1rem;
  z-index: 1000;
}

.skip-link:focus {
  top: 0;
}