/* KidSafePC site: sticky header and footer. Tokens live in base.css. */

/* ---------- header ---------- */
.top {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  border-bottom: 1px solid var(--line);
}

.top-row {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 66px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.3125rem;
  text-decoration: none;
}

.brand img {
  width: 34px;
  height: 34px;
}

.top-nav {
  display: none;
  gap: 2px;
  margin-inline: auto;
}

.top-nav a {
  padding: 8px 12px;
  border-radius: 10px;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-2);
  text-decoration: none;
  white-space: nowrap;
  transition: background-color var(--dur), color var(--dur);
}

.top-nav a:hover {
  background: var(--surface-2);
  color: var(--text);
}

.top-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.seg {
  display: inline-flex;
  padding: 3px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--surface);
}

.seg button {
  min-width: 44px;
  min-height: 36px;
  padding: 0 10px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--text-2);
  cursor: pointer;
  transition: background-color var(--dur), color var(--dur);
}

.seg button[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-ink);
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: var(--surface);
  cursor: pointer;
  transition: border-color var(--dur), transform var(--dur) var(--ease-out);
}

.icon-btn:hover {
  border-color: var(--text-3);
  transform: translateY(-1px);
}

.icon-btn .icon {
  width: 19px;
  height: 19px;
}

html[data-theme="dark"] .icon-btn .sun,
html:not([data-theme="dark"]) .icon-btn .moon {
  display: none;
}

.top .btn-primary {
  display: none;
}

@media (min-width: 720px) {
  .top .btn-primary {
    display: inline-flex;
    min-height: 42px;
    padding-inline: 16px;
  }
}

@media (min-width: 1080px) {
  .top-nav {
    display: flex;
  }
}

/* ---------- footer ---------- */
.foot {
  padding-block: 36px;
  font-size: 0.9375rem;
  color: var(--text-3);
  border-top: 1px solid var(--line);
}

.foot .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 24px;
}

.foot nav {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
  margin-left: auto;
}

.foot a {
  display: inline-block;
  padding-block: 6px;
  color: var(--text-2);
}

.foot-note {
  width: 100%;
}