/* ============================================================
   NAVION 3D — footer & policies (Apple system)
   ============================================================ */

/* ---------------- Footer — parchment band ---------------- */
.footer {
  margin-top: var(--section);
  background: var(--soft);
  padding-block: 64px var(--xl);
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) 1fr 1fr 1fr;
  gap: var(--xxl);
}
.footer-brand { display: grid; gap: var(--lg); align-content: start; }
.footer-logo { display: inline-flex; align-items: center; gap: var(--md); }
.footer-logo img {
  width: 64px; height: 64px;
  object-fit: contain;
}
.footer-logo .fl-text { display: grid; gap: 2px; }
.footer-logo .fl-name {
  font-size: var(--title-md);
  font-weight: var(--w-heavy);
  letter-spacing: -0.224px;
  color: var(--ink);
}
.footer-logo .fl-sub {
  font-size: var(--caption);
  letter-spacing: -0.12px;
  color: var(--muted);
}
.footer-blurb { color: var(--body-c); max-width: 340px; font-size: var(--body-sm); }
.footer-social { display: flex; gap: var(--sm); }
.footer-social a {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--strong);
  color: var(--ink);
  transition: background .15s ease, color .15s ease;
}
.footer-social a:hover { background: var(--primary); color: var(--on-primary); }
.footer-col h4 {
  font-size: var(--body-sm);
  font-weight: var(--w-heavy);
  letter-spacing: -0.224px;
  color: var(--ink);
  margin-bottom: var(--md);
}
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col a, .footer-col li {
  color: var(--body-c);
  font-size: var(--body-md);
  font-weight: var(--w-regular);
  line-height: 2.2;               /* dense-link leading */
  letter-spacing: -0.224px;
  transition: color .15s ease;
}
.footer-col a:hover { color: var(--primary); }
.footer-bottom {
  margin-top: var(--xxl);
  padding-top: var(--lg);
  border-top: 1px solid var(--hairline);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--md);
  flex-wrap: wrap;
  color: var(--muted-soft);
  font-size: var(--caption);
  letter-spacing: -0.12px;
}
.footer-bottom nav { display: flex; gap: var(--lg); }
.footer-bottom a { color: inherit; transition: color .15s ease; }
.footer-bottom a:hover { color: var(--primary); }

/* ---------------- Policy accordions ---------------- */
.policy-group { display: grid; gap: var(--sm); max-width: 920px; }
details.policy {
  background: rgba(217, 217, 217, .58);
  border: 1px solid #fff;
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  box-shadow: 12px 17px 51px rgba(0, 0, 0, .22);
  border-radius: 17px;
  transition: all .5s;
}
details.policy:hover { border: 1px solid var(--ink); transform: scale(1.05); }
details.policy:active { transform: scale(0.95) rotateZ(1.7deg); }
details.policy summary {
  list-style: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--md);
  padding: var(--lg) var(--xl);
  font-size: var(--tagline);
  font-weight: var(--w-heavy);
  letter-spacing: var(--ls-tagline);
  color: var(--ink);
  border-radius: inherit;
}
details.policy summary::-webkit-details-marker { display: none; }
details.policy summary .chev { flex: none; color: var(--muted); transition: transform .25s var(--ease-out); }
details.policy[open] summary .chev { transform: rotate(180deg); }
details.policy[open] summary { border-bottom: 1px solid var(--divider); }
.policy-body {
  padding: var(--lg) var(--xl) var(--xl);
  color: var(--body-c);
  font-size: var(--body-sm);
  line-height: 1.6;
}
.policy-body h3 {
  font-size: var(--title-md);
  font-weight: var(--w-heavy);
  letter-spacing: -0.224px;
  color: var(--ink);
  margin: var(--md) 0 var(--xs);
}
.policy-body ul { margin: var(--xs) 0; padding-left: 20px; display: grid; gap: var(--xxs); }
.policy-body strong { color: var(--ink); font-weight: var(--w-heavy); }

/* Redesign layer overrides loaded after the main stylesheet. */
.footer {
  margin-top: 0;
  background:
    linear-gradient(180deg, rgba(238, 243, 248, .72), #eaf0f7);
  padding-block: 72px 30px;
  border-top: 1px solid var(--hairline);
}

.footer-logo img {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: #fff;
  padding: 6px;
}

.footer-social a {
  background: #fff;
  border: 1px solid var(--hairline);
}

.footer-col a,
.footer-col li {
  line-height: 1.9;
}

details.policy {
  border: 1px solid var(--hairline);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .86);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: none;
}

details.policy:hover {
  border-color: rgba(10, 132, 255, .42);
  box-shadow: 0 18px 50px rgba(7, 17, 31, .1);
  transform: translateY(-4px);
}

details.policy:active {
  transform: translateY(-1px) scale(.99);
}