/* ── Navigation ──────────────────────────────────────────────── */

.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  background: rgba(243,238,230,.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t-base), box-shadow var(--t-base);
}

.nav.is-scrolled {
  border-color: var(--c-border);
  box-shadow: var(--shadow-sm);
}

.nav__inner {
  display: flex;
  align-items: center;
  gap: var(--sp-8);
  padding-block: var(--sp-4);
}

/* Legal/feedback pages: just the wordmark, centered — no links, no CTA. */
.nav__inner--center {
  justify-content: center;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-display);
  font-size: var(--sz-lg);
  font-weight: 700;
  color: var(--c-ink);
  flex-shrink: 0;
}

.brand-mark {
  display: inline-block;
  width: 1.35em;
  height: 1.35em;
  object-fit: contain;
  flex-shrink: 0;
}

/* Wraps .nav__links + .nav__cta. `display: contents` makes it invisible to
   layout on desktop — both children stay direct flex items of .nav__inner.
   The mobile media query below turns it into the actual dropdown panel. */
.nav__panel {
  display: contents;
}

.nav__links {
  display: flex;
  gap: 0;
  list-style: none;
}

.nav__links a {
  display: block;
  font-size: var(--sz-sm);
  font-weight: 500;
  color: var(--c-muted);
  padding: var(--sp-2) var(--sp-3);
  border-radius: 0;
  transition: color var(--t-fast), background var(--t-fast);
}

.nav__links a:hover {
  color: var(--c-ink);
  background: var(--c-violet-pale);
}

.nav__cta {
  margin-left: auto;
  flex-shrink: 0;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--sp-2);
  background: none;
  border: none;
  cursor: pointer;
  margin-left: auto;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--c-ink);
  border-radius: 0;
  transition: transform var(--t-base), opacity var(--t-base);
}

/* mobile nav */
@media (max-width: 768px) {
  /* On desktop, .nav__panel is `display: contents` (see base rule below) so
     it has zero effect on layout — .nav__links and .nav__cta stay direct
     flex children of .nav__inner. Below 768px it becomes the actual
     dropdown: a single flex column sized to whatever content it holds, so
     nothing needs a hardcoded height that breaks when a link is added. */
  .nav__panel { display: none; }
  .nav__toggle { display: flex; }

  .nav.is-open .nav__panel {
    display: flex;
    flex-direction: column;
    gap: var(--sp-3);
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--c-surface);
    border-bottom: 1px solid var(--c-border);
    box-shadow: var(--shadow-md);
    padding: var(--sp-3) var(--gutter) var(--sp-4);
  }

  .nav.is-open .nav__links {
    display: flex;
    flex-direction: column;
  }

  .nav.is-open .nav__links a {
    padding: var(--sp-3);
    border-radius: 0;
  }

  .nav.is-open .nav__cta {
    width: 100%;
    text-align: center;
    justify-content: center;
  }
}

/* ── Buttons ─────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: .625rem 1.25rem;
  font-family: var(--font-body);
  font-size: var(--sz-sm);
  font-weight: 600;
  line-height: 1;
  border-radius: 0;
  border: none;
  cursor: pointer;
  white-space: nowrap;
  text-decoration: none;
  transition: background var(--t-fast), border-color var(--t-fast);
}

.btn--primary {
  background: var(--c-violet);
  color: #fff;
}

.btn--primary:hover {
  background: var(--c-violet-hover);
}

.btn--lg {
  padding: .875rem 1.875rem;
  font-size: var(--sz-base);
}

.btn--secondary {
  background: transparent;
  color: var(--c-ink);
  border: 1px solid var(--c-border);
}

.btn--secondary:hover {
  background: var(--c-ground);
}