/* ============ HEADER ============ */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h-mobile);
  z-index: var(--z-header);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--t), background var(--t);
}
.site-header.is-scrolled {
  border-bottom-color: var(--border);
  background: color-mix(in srgb, var(--bg) 96%, transparent);
}
.site-header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 18px;
  max-width: var(--container);
  margin: 0 auto;
}
@media (min-width: 768px) {
  .site-header { height: var(--header-h); }
  .site-header__inner { padding: 0 40px; }
}

/* Brand */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text);
  flex-shrink: 0;
}
.brand-mark {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 14%, var(--bg));
  border-radius: 50%;
  padding: 6px;
  flex-shrink: 0;
}
.brand-mark svg { width: 100%; height: 100%; display: block; }
.brand-text { display: flex; flex-direction: column; line-height: 1.05; }
.brand-name {
  font-family: var(--ff-display);
  font-weight: 500;
  font-size: 1.06rem;
  color: var(--text);
}
.brand-name em { font-style: italic; color: var(--accent); font-weight: 500; }
.brand-tag {
  font-family: var(--ff-body);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: .62rem;
  color: var(--text-mute);
  margin-top: 3px;
}
@media (max-width: 460px) { .brand-tag { display: none; } }

/* Nav desktop */
.nav-desktop { display: none; }
@media (min-width: 900px) {
  .nav-desktop {
    display: flex;
    align-items: center;
    gap: 28px;
  }
  .nav-desktop a {
    font-family: var(--ff-body);
    font-size: .95rem;
    color: var(--text);
    padding: 8px 0;
    position: relative;
  }
  .nav-desktop a:not(.header-cta)::after {
    content: "";
    position: absolute;
    left: 0; right: 100%;
    bottom: 4px;
    height: 1px;
    background: var(--accent);
    transition: right var(--t);
  }
  .nav-desktop a:not(.header-cta):hover::after { right: 0; }
}

.header-cta {
  display: none;
}
@media (min-width: 900px) {
  .header-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border-radius: 999px;
    background: var(--accent);
    color: #fff !important;
    font-weight: 500;
    transition: background var(--t-fast);
  }
  .header-cta:hover { background: color-mix(in srgb, var(--accent) 84%, #000); color: #fff; }
}

/* Burger */
.burger {
  position: fixed;
  top: calc((var(--header-h-mobile) - 44px) / 2);
  right: 16px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  z-index: var(--z-burger);
  background: transparent;
}
.burger span,
.burger span::before,
.burger span::after {
  content: "";
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform var(--t), opacity var(--t-fast), top var(--t), background var(--t-fast);
  position: relative;
}
.burger span::before { position: absolute; top: -7px; left: 0; }
.burger span::after { position: absolute; top: 7px; left: 0; }
.burger.is-open span { background: transparent; }
.burger.is-open span::before { top: 0; transform: rotate(45deg); background: var(--text); }
.burger.is-open span::after { top: 0; transform: rotate(-45deg); background: var(--text); }
@media (min-width: 900px) {
  .burger { display: none; }
}

/* Menu mobile */
.menu-mobile {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  height: 100dvh;
  background: var(--bg);
  z-index: var(--z-menu);
  padding: calc(var(--header-h-mobile) + 28px) 24px 40px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transform: translateY(-100%);
  opacity: 0;
  visibility: hidden;
  transition: transform .35s ease, opacity .35s ease, visibility 0s linear .35s;
}
.menu-mobile.is-open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  transition: transform .35s ease, opacity .35s ease;
}
.menu-mobile a {
  font-family: var(--ff-display);
  font-size: 1.5rem;
  color: var(--text);
  padding: 14px 4px;
  border-bottom: 1px solid var(--border);
}
.menu-mobile a:last-of-type { border-bottom: 0; }
.menu-mobile .menu-actions {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.menu-mobile .menu-actions .btn { width: 100%; justify-content: center; }
.menu-mobile .menu-actions .btn.btn-primary { background: var(--accent); color: #fff; }
.menu-mobile .menu-actions .btn.btn-wa { background: var(--wa-green); color: #fff; }
@media (min-width: 900px) {
  .menu-mobile { display: none !important; }
}

/* Padding-top body to clear fixed header */
main { padding-top: var(--header-h-mobile); }
@media (min-width: 768px) {
  main { padding-top: var(--header-h); }
}

/* ============ FOOTER ============ */
.site-footer {
  background: var(--surface-deep);
  color: var(--text-on-dark);
  padding: 56px 0 28px;
  margin-top: 0;
}
.site-footer a { color: var(--text-on-dark); }
.site-footer a:hover { color: var(--accent-on-dark); }
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 1.2fr 1fr 1fr; gap: 48px; }
}
.footer-col h4 {
  font-family: var(--ff-display);
  font-size: 1.1rem;
  color: var(--accent-on-dark);
  margin-bottom: 14px;
}
.footer-col ul li { margin-bottom: 8px; font-size: .95rem; }
.footer-col .brand .brand-name { color: var(--text-on-dark); }
.footer-col .brand .brand-name em { color: var(--accent-on-dark); }
.footer-col .brand .brand-tag { color: rgba(237, 231, 218, .6); }
.footer-col .brand-mark {
  background: color-mix(in srgb, var(--accent-on-dark) 18%, transparent);
  color: var(--accent-on-dark);
}
.footer-tag {
  margin-top: 14px;
  color: rgba(237, 231, 218, .72);
  font-size: .95rem;
  line-height: 1.55;
}
.footer-bottom {
  margin-top: 36px;
  padding-top: 22px;
  border-top: 1px solid var(--border-on-dark);
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: space-between;
  font-size: .82rem;
  color: rgba(237, 231, 218, .68);
}
.footer-bottom button {
  background: transparent;
  color: rgba(237, 231, 218, .82);
  text-decoration: underline;
  text-underline-offset: 4px;
  font-size: .82rem;
}

/* ============ FAB ============ */
.fab-call {
  position: fixed;
  right: 18px;
  bottom: 18px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: grid;
  place-items: center;
  z-index: var(--z-fab);
  box-shadow: 0 8px 22px color-mix(in srgb, var(--accent) 38%, transparent);
  transform: translateY(120%);
  opacity: 0;
  transition: transform .3s ease, opacity .3s ease;
}
.fab-call.is-visible {
  transform: translateY(0);
  opacity: 1;
}
.fab-call svg { width: 26px; height: 26px; }
@media (min-width: 900px) {
  .fab-call { display: none; }
}