/* Dark Arbor Labs: shared styles (tokens, shell, nav, products menu, footer).
   Page-specific styles stay in each page's own <style> block. */

:root {
  --bg:       #1a1a1a;
  --bg-card:  #222222;
  --ink:      #f4f4f4;
  --muted:    #8f8f8f;
  --rule:     #2a2a2a;
  --accent:   #c8c8c8;
  --mono:     ui-monospace, "SF Mono", "Roboto Mono", Menlo, monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background:
    radial-gradient(ellipse 900px 500px at 50% -10%, rgba(255,255,255,0.04), transparent),
    radial-gradient(circle at 1px 1px, rgba(255,255,255,0.045) 1px, transparent 0) 0 0/28px 28px,
    var(--bg);
  color: var(--ink);
  font-family: -apple-system, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
}

/* ── Layout shell ── */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

section {
  padding: 3.5rem 0;
  border-top: 1px solid var(--rule);
  scroll-margin-top: 60px;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-up { animation: fadeUp 0.7s ease both; }

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

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 200;
  background: var(--ink);
  color: var(--bg);
  padding: 0.5rem 1rem;
  border-radius: 4px;
  font-size: 0.85rem;
  text-decoration: none;
}
.skip-link:focus { top: 0.75rem; }

/* ── Nav ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(26, 26, 26, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--rule);
}

.nav-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 54px;
}

.nav-brand {
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
  white-space: nowrap;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-links a,
.nav-caret {
  position: relative;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
  padding-bottom: 4px;
}

.nav-links > li > a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.nav-links > li > a:hover,
.nav-links > li > a[aria-current] { color: var(--ink); }
.nav-links > li > a:hover::after,
.nav-links > li > a[aria-current]::after { transform: scaleX(1); transform-origin: left; }

/* Products: a real link (works without JS) plus a caret button that opens the menu. */
.nav-links li { display: flex; align-items: center; }
.nav-products { position: relative; }

.nav-caret {
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  padding: 0 0 4px 0.45rem;
  display: none;
  line-height: 1;
}
.js .nav-caret { display: inline-flex; align-items: center; }
.nav-caret svg { width: 10px; height: 10px; transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1); }
.nav-caret:hover,
.nav-products.open .nav-caret { color: var(--ink); }
.nav-products.open .nav-caret svg { transform: rotate(180deg); }

.products-menu {
  position: absolute;
  top: calc(100% + 16px);
  right: -1rem;
  width: min(420px, calc(100vw - 2rem));
  background: #202020;
  border: 1px solid #333;
  border-radius: 10px;
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.55);
  padding: 0.5rem;
  max-height: calc(100vh - 90px);
  overflow-y: auto;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.18s ease, transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), visibility 0s linear 0.25s;
}

/* Invisible bridge so the pointer can travel from the link to the panel without closing it. */
.products-menu::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -18px;
  height: 18px;
}

.nav-products.open .products-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition-delay: 0s;
}

.menu-group-label {
  font-size: 0.64rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #666;
  padding: 0.7rem 0.75rem 0.3rem;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  color: var(--ink);
  text-decoration: none;
  transition: background 0.18s;
}
.menu-item:hover,
.menu-item:focus-visible { background: #2a2a2a; }

.menu-item img {
  width: 40px;
  height: 40px;
  border-radius: 9px;
  flex-shrink: 0;
  object-fit: cover;
  background: #333;
}

.menu-item-text { min-width: 0; flex: 1; }

.menu-item-name {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-transform: none;
}

.menu-item-desc {
  display: block;
  font-size: 0.8rem;
  line-height: 1.4;
  color: var(--muted);
  text-transform: none;
  letter-spacing: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.menu-all {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.35rem;
  padding: 0.75rem 0.75rem 0.55rem;
  border-top: 1px solid var(--rule);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s;
}
.menu-all:hover,
.menu-all:focus-visible { color: var(--ink); }

/* Small status / platform tags, shared by the menu and the catalog */
.tag {
  display: inline-block;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  line-height: 1;
  padding: 0.3em 0.6em;
  border-radius: 100px;
  border: 1px solid #3a3a3a;
  color: var(--accent);
  white-space: nowrap;
}
.tag.soon { color: #7fd99a; border-color: rgba(127, 217, 154, 0.35); }

/* ── Section headings ── */
.section-label {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.section-label::before {
  content: attr(data-index);
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0;
  color: #555;
}

.section-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--rule);
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  margin-bottom: 2.5rem;
}

/* ── Capabilities ── */
.cap-group { margin-bottom: 2.25rem; }
.cap-group:last-child { margin-bottom: 0; }

.cap-group-label {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 1rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 6px;
  padding: 2rem 1.75rem;
  overflow: hidden;
  transition: transform 0.25s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.25s ease;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--ink);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.card:hover {
  transform: translateY(-3px);
  border-color: #3a3a3a;
}

.card:hover::before {
  transform: scaleX(1);
}

.card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: 0.01em;
}

.card p {
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.65;
}

@media (max-width: 640px) {
  .grid-2 { grid-template-columns: 1fr; }
}

/* ── Status badge ── */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  background: var(--bg-card);
  border: 1px solid var(--rule);
  border-radius: 100px;
  padding: 0.3em 0.9em 0.3em 0.7em;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.status-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #7fd99a;
  box-shadow: 0 0 0 0 rgba(127, 217, 154, 0.6);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(127, 217, 154, 0.5); }
  70%  { box-shadow: 0 0 0 6px rgba(127, 217, 154, 0); }
  100% { box-shadow: 0 0 0 0 rgba(127, 217, 154, 0); }
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--rule);
  padding: 2.5rem 0;
  text-align: center;
}

.legal-notice {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.copyright {
  font-size: 0.78rem;
  color: #666;
  letter-spacing: 0.05em;
}

.trademarks {
  font-size: 0.72rem;
  color: #666;
  line-height: 1.6;
  margin-bottom: 1rem;
}

@media (max-width: 600px) {
  section { padding: 2.5rem 0; }
  .nav-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 0.85rem 1.5rem;
    row-gap: 0.6rem;
  }
  .nav-brand { flex: 1 1 100%; }
  .nav-links { gap: 0.45rem 1rem; flex-wrap: wrap; }
  .nav-links a, .nav-caret { font-size: 0.68rem; letter-spacing: 0.08em; }
  /* Menu spans the nav width on phones instead of hanging off the Products link. */
  .nav-products { position: static; }
  .products-menu {
    top: 100%;
    left: 0.75rem;
    right: 0.75rem;
    width: auto;
  }
  .products-menu::before { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fade-up { animation: none; }
  .products-menu, .nav-caret svg { transition: none; }
}