/* Nodo Ecosystem - Shared Design System
   Aesthetic that underlays all sites — barely perceptible, ideally imperceptible
   but consistent enough to feel like one family.
*/

:root {
  /* Shared palette - warm neutral with deep blue-green accents */
  --nodo-ink: #1a1d24;
  --nodo-paper: #fafaf7;
  --nodo-bone: #f4f1ea;
  --nodo-stone: #d6d3c8;
  --nodo-cord: #8a8579;
  --nodo-accent: #2d5a4f;
  --nodo-accent-soft: #5a8a7e;
  --nodo-warm: #c4663a;
  --nodo-shadow: rgba(26, 29, 36, 0.08);
  --nodo-line: rgba(26, 29, 36, 0.12);

  --font-display: 'Cormorant Garamond', 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Menlo', monospace;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  color: var(--nodo-ink);
  background: var(--nodo-paper);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--nodo-accent); text-decoration: none; transition: color .2s ease; }
a:hover { color: var(--nodo-warm); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--nodo-ink);
}
h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.6rem); margin-bottom: 1rem; }
h3 { font-size: 1.4rem; margin-bottom: 0.6rem; }

p { margin-bottom: 1rem; }

/* The shared horizontal tab nav (used by all sites in the ecosystem) */
.eco-tabs {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  top: auto;
  width: 100%;
  background: rgba(250, 250, 247, 0.92);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--nodo-line);
  border-bottom: 0;
  z-index: 100;
}

.eco-tabs .eco-nav-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: nowrap;
  min-width: 0;
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}
.eco-tabs .eco-nav-row--compact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}
.eco-tabs .eco-nav-links {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex-wrap: nowrap;
  min-width: 0;
  overflow: hidden;
}
.eco-tabs .eco-brand {
  font: Helvetica;
  font-size: 0.82rem;
  font-weight: 400;
  color: var(--nodo-ink);
  letter-spacing: 0.03em;
  padding-right: 0.5rem;
  border-right: 0.5px solid var(--nodo-line);
  flex-shrink: 0;
}
.eco-tabs a {
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--nodo-cord);
  padding: 0.2rem 0.2rem;
  border-radius: 1px;
  flex-shrink: 0;
}
.eco-tabs a:hover { color: var(--nodo-ink); background: rgba(0,0,0,0.03); }
.eco-tabs a.active { color: var(--nodo-accent); }
.eco-tabs .eco-nav-row--dropdown {
  width: fit-content;
  position: relative;
  align-self: flex-start;
}
.eco-tabs .eco-nav-dropdown {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.eco-tabs .eco-nav-dropdown-toggle {
  cursor: pointer;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
  color: var(--nodo-cord);
  padding: 0.2rem 0.3rem;
  border-radius: 1px;
  background: transparent;
  border: 0;
  font: inherit;
}
.eco-tabs .eco-nav-dropdown-toggle:hover { color: var(--nodo-ink); background: rgba(0,0,0,0.03); }
.eco-tabs .eco-nav-dropdown-menu {
  position: absolute;
  bottom: calc(100% + 0.35rem);
  left: 0;
  display: none;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 220px;
  background: rgba(250, 250, 247, 0.98);
  border: 1px solid var(--nodo-line);
  box-shadow: 0 8px 24px var(--nodo-shadow);
  padding: 0.6rem;
  z-index: 200;
}
.eco-tabs .eco-nav-dropdown.is-open .eco-nav-dropdown-menu {
  display: flex;
}
.eco-tabs .eco-nav-dropdown-menu .eco-nav-links {
  display: grid;
  gap: 0.2rem;
}
.eco-tabs .eco-nav-dropdown-menu a {
  display: block;
  padding: 0.25rem 0;
  width: 100%;
}
.eco-tabs.eco-tabs-compact {
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.eco-tabs.eco-tabs-compact .eco-nav-row {
  width: auto;
}
.eco-tabs .eco-meta {
  margin-left: auto;
  font-size: 0.7rem;
  color: var(--nodo-cord);
  letter-spacing: 0.06em;
  flex-shrink: 0;
}

/* Understated sibling-sites footer (client-facing version) */
.eco-siblings-quiet {
  border-top: 1px solid var(--nodo-line);
  padding: 2rem 1.2rem;
  margin-top: 4rem;
  font-size: 0.75rem;
  color: var(--nodo-cord);
  text-align: center;
}
.eco-siblings-quiet a {
  color: var(--nodo-cord);
  margin: 0 0.4rem;
  letter-spacing: 0.04em;
}

/* Capital-facing version of sibling links (more prominent, used by Ast/RE/Enki etc.) */
.eco-siblings {
  background: var(--nodo-bone);
  border-top: 1px solid var(--nodo-line);
  padding: 4rem 1.2rem 3rem;
}
.eco-siblings .eco-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.4rem;
  max-width: 1400px;
  margin: 0 auto;
}
.eco-siblings .eco-card {
  background: var(--nodo-paper);
  border: 1px solid var(--nodo-line);
  padding: 1.2rem;
  border-radius: 4px;
  transition: all .25s ease;
}
.eco-siblings .eco-card:hover {
  border-color: var(--nodo-accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px var(--nodo-shadow);
}
.eco-siblings .eco-card h4 {
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--nodo-accent);
  margin-bottom: 0.4rem;
}
.eco-siblings .eco-card p {
  font-size: 0.85rem;
  color: var(--nodo-cord);
  margin: 0;
}
.eco-siblings .eco-head {
  text-align: center;
  margin-bottom: 2rem;
}
.eco-siblings .eco-head small {
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--nodo-cord);
}

/* Hero / parallax shared */
.eco-hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  background: linear-gradient(180deg, var(--nodo-bone), var(--nodo-paper));
}
.eco-hero h1 { margin-bottom: 0.6rem; }
.eco-hero p { color: var(--nodo-cord); font-size: 1.15rem; max-width: 680px; margin: 0 auto; }

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

/* Tab content vertical scroll */
.eco-section { padding: 4rem 0; border-bottom: 1px solid var(--nodo-line); }
.eco-section:last-of-type { border-bottom: 0; }

/* Cards grid */
.eco-card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.4rem;
  margin-top: 2rem;
}
.eco-card-grid .eco-card {
  background: var(--nodo-paper);
  border: 1px solid var(--nodo-line);
  padding: 1.5rem;
  border-radius: 4px;
}
.eco-card-grid .eco-card h3 { color: var(--nodo-accent); margin-bottom: 0.5rem; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.85rem 1.6rem;
  background: var(--nodo-ink);
  color: var(--nodo-paper);
  border: 1px solid var(--nodo-ink);
  border-radius: 2px;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all .2s ease;
}
.btn:hover { background: var(--nodo-accent); border-color: var(--nodo-accent); color: var(--nodo-paper); }
.btn-ghost { background: transparent; color: var(--nodo-ink); }
.btn-ghost:hover { background: var(--nodo-ink); color: var(--nodo-paper); }

/* Forms */
input[type=text], input[type=email], input[type=tel], input[type=date], input[type=time], select, textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--nodo-line);
  border-radius: 2px;
  background: var(--nodo-paper);
  font-family: inherit;
  font-size: 0.95rem;
  margin-bottom: 0.7rem;
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--nodo-accent); }

/* Responsive */
@media (max-width: 720px) {
  .eco-tabs { padding: 0.5rem; gap: 0.4rem; }
  .eco-tabs a { padding: 0.3rem 0.4rem; font-size: 0.7rem; }
  .eco-tabs .eco-brand { font-size: 1rem; padding-right: 0.5rem; }
  .eco-tabs .eco-meta { display: none; }
}

/* Utility */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.mt-4 { margin-top: 4rem; }
.mb-2 { margin-bottom: 2rem; }
.muted { color: var(--nodo-cord); }