@import url('https://fonts.googleapis.com/css2?family=Newsreader:ital,opsz,wght@0,6..72,300..700;1,6..72,300..700&family=Plus+Jakarta+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* Organic Human Atlas Palette */
  --color-linen: #F6F3EC;
  --color-linen-light: #FAF8F4;
  --color-linen-deep: #EDE8DC;
  --color-ink: #111E26;
  --color-ink-muted: #3D4F5C;
  --color-ink-light: #6C7D8A;
  --color-pine: #1B3E35;
  --color-pine-dark: #122B25;
  --color-pine-light: #28594C;
  --color-mustard: #C58E3A;
  --color-mustard-hover: #A97629;
  --color-sage: #E3ECE4;
  --color-sage-soft: #EEF4EF;
  --color-white: #FFFFFF;
  --color-border: #DCD5C5;
  --color-border-subtle: #E8E3D7;

  /* Typography */
  --font-editorial: 'Newsreader', Georgia, serif;
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* Radii & Effects */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-pill: 9999px;
  --shadow-editorial: 0 4px 20px rgba(17, 30, 38, 0.05);
  --shadow-hover: 0 10px 30px rgba(17, 30, 38, 0.09);
}

/* Base Reset & Typography */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background-color: var(--color-linen);
  color: var(--color-ink);
}

body {
  font-family: var(--font-sans);
  background-color: var(--color-linen);
  color: var(--color-ink);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, .font-editorial {
  font-family: var(--font-editorial);
  color: var(--color-ink);
  font-feature-settings: "kern", "liga", "clig";
  letter-spacing: -0.02em;
}

.font-sans {
  font-family: var(--font-sans);
}

.font-mono {
  font-family: var(--font-mono);
}

/* Atmospheric Editorial Elements */
.bg-linen { background-color: var(--color-linen); }
.bg-linen-light { background-color: var(--color-linen-light); }
.bg-linen-deep { background-color: var(--color-linen-deep); }
.bg-ink { background-color: var(--color-ink); color: #fff; }
.bg-pine { background-color: var(--color-pine); color: #fff; }
.bg-mustard { background-color: var(--color-mustard); color: #fff; }
.bg-sage { background-color: var(--color-sage); }
.bg-sage-soft { background-color: var(--color-sage-soft); }

.text-ink { color: var(--color-ink); }
.text-ink-muted { color: var(--color-ink-muted); }
.text-ink-light { color: var(--color-ink-light); }
.text-pine { color: var(--color-pine); }
.text-mustard { color: var(--color-mustard); }

.border-atlas { border-color: var(--color-border); }
.border-subtle { border-color: var(--color-border-subtle); }

/* Editorial Components */
.atlas-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  background-color: var(--color-sage);
  color: var(--color-pine);
  font-family: var(--font-sans);
}

.atlas-number {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  color: var(--color-mustard);
  font-weight: 500;
}

.btn-pine {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--color-pine);
  color: #FFFFFF !important;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  text-decoration: none;
  letter-spacing: 0.02em;
  border: 1px solid var(--color-pine);
}

.btn-pine:hover {
  background-color: var(--color-pine-light);
  transform: translateY(-1px);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: transparent;
  color: var(--color-ink) !important;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn-outline:hover {
  background-color: var(--color-linen-deep);
  border-color: var(--color-ink-muted);
}

.editorial-card {
  background-color: var(--color-white);
  border: 1px solid var(--color-border-subtle);
  border-radius: var(--radius-md);
  transition: all 0.25s ease;
}

.editorial-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--color-border);
}

/* Nav & Header */
.atlas-header {
  background-color: rgba(246, 243, 236, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.nav-link {
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--color-ink-muted);
  transition: color 0.15s ease;
  position: relative;
  padding: 0.4rem 0.2rem;
}

.nav-link:hover, .nav-link.active {
  color: var(--color-pine);
}

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

/* Timeline & Diagram Nodes */
.timeline-stem {
  position: relative;
}

.timeline-stem::before {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 1.5rem;
  width: 2px;
  background-color: var(--color-border);
}

/* Scientific Diagram Box */
.diagram-circle {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  border: 2px dashed var(--color-border);
  background: var(--color-linen-light);
}

/* Pull Quotes */
.atlas-quote {
  font-family: var(--font-editorial);
  font-style: italic;
  font-size: 1.35rem;
  line-height: 1.5;
  color: var(--color-ink);
  border-left: 3px solid var(--color-mustard);
  padding-left: 1.25rem;
  margin: 1.5rem 0;
}

/* Cookie Banner Styling */
.atlas-cookie-banner {
  position: fixed;
  bottom: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  max-width: 650px;
  margin: 0 auto;
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  box-shadow: 0 12px 35px rgba(17, 30, 38, 0.14);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  z-index: 9999;
}

/* Responsive Table */
.atlas-table {
  width: 100%;
  border-collapse: collapse;
}

.atlas-table th {
  text-align: left;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
  padding: 0.8rem 1rem;
  background-color: var(--color-sage-soft);
  border-bottom: 1px solid var(--color-border);
}

.atlas-table td {
  padding: 0.9rem 1rem;
  font-size: 0.9rem;
  border-bottom: 1px solid var(--color-border-subtle);
  color: var(--color-ink);
}

/* Custom Accordion */
details.atlas-accordion {
  border-bottom: 1px solid var(--color-border);
  padding: 1.25rem 0;
  transition: all 0.2s ease;
}

details.atlas-accordion summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--color-ink);
}

details.atlas-accordion summary::-webkit-details-marker {
  display: none;
}

details.atlas-accordion[open] summary {
  color: var(--color-pine);
}

details.atlas-accordion .accordion-content {
  padding-top: 1rem;
  color: var(--color-ink-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}