/* =================================================================
   Sundae Websites — shared sticky nav + hamburger menu
   Used by both the home page and the Services page so the mobile
   menu is identical everywhere. Reuses tokens from colors_and_type.css
   and the shared .btn component from home.css.
   ================================================================= */

/* ============== STICKY NAV ============== */
.snav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--d-base) var(--ease-out),
              background var(--d-base) var(--ease-out);
}
.snav.is-scrolled {
  border-bottom-color: var(--ink-10);
  background: rgba(255, 255, 255, 0.92);
}
.snav__inner {
  max-width: 1320px;
  margin: 0 auto;
  height: 84px;
  padding: 0 56px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.snav__logo {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-decoration: none;
  flex-shrink: 0;
  transition: opacity var(--d-fast) var(--ease-out);
}
.snav__logo:hover { opacity: 0.78; }
.snav__logo img { display: block; width: 124px; height: auto; }
.snav__logo-sub {
  font-family: var(--font-ui);
  font-weight: 800;
  font-size: 11px;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--ink);
  width: 124px;
  text-align: center;
}
.snav__links {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-left: 18px;
}
.snav__link {
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 15px;
  color: var(--ink-70);
  transition: color var(--d-fast) var(--ease-out);
}
.snav__link:hover { color: var(--blue-deep); }
.snav__link.is-current { color: var(--ink); font-weight: 800; }

/* ===== Services dropdown — a clean tile that drops below the bar ===== */
.snav__item { display: inline-flex; align-items: center; }
.snav__item--has-menu { position: relative; }

.snav__dropdown {
  position: absolute;
  top: calc(100% + 30px);
  left: 50%;
  min-width: 212px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--paper);
  border: 1px solid var(--ink-10);
  border-radius: var(--r-4);
  box-shadow: var(--shadow-lg);
  z-index: 60;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translate(-50%, 6px);
  transition: opacity var(--d-base) var(--ease-out),
              transform var(--d-base) var(--ease-out),
              visibility var(--d-base) var(--ease-out);
}
/* Invisible bridge so the pointer can travel from the link into the tile. */
.snav__dropdown::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -32px;
  height: 32px;
}
.snav__item--has-menu:hover .snav__dropdown,
.snav__item--has-menu:focus-within .snav__dropdown {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translate(-50%, 0);
}

.snav__dropdown-link {
  display: block;
  padding: 9px 14px;
  border-radius: var(--r-2);
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 15px;
  color: var(--ink-70);
  white-space: nowrap;
  transition: color var(--d-fast) var(--ease-out),
              background var(--d-fast) var(--ease-out);
}
.snav__dropdown-link:hover {
  color: var(--blue-deep);
  background: var(--ink-06);
}
.snav__spacer { flex: 1; }
.snav__phone {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 15px;
  color: var(--ink);
  white-space: nowrap;
  transition: color var(--d-fast) var(--ease-out);
}
.snav__phone svg { color: var(--blue); flex-shrink: 0; }
.snav__phone:hover { color: var(--blue-deep); }
.snav__phone:hover svg { color: var(--blue-deep); }
/* Hamburger (mobile) — sits inside a solid blue brand diamond. */
.snav__burger {
  display: none;
  position: relative;
  width: 46px;
  height: 46px;
  flex: none;
  margin-left: 4px;
  padding: 0;
  border: 0;
  background: none;
  cursor: pointer;
  place-items: center;
}
.snav__burger-diamond {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 38px;
  height: 38px;
  background: var(--blue-light);
  border-radius: 9px;
  transform: rotate(45deg);
  transition: background var(--d-fast) var(--ease-out), transform var(--d-base) var(--ease-out);
}
.snav__burger-lines {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.snav__burger-lines i {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: #fff;
  transition: width var(--d-fast) var(--ease-out),
              transform var(--d-fast) var(--ease-out),
              opacity var(--d-fast) var(--ease-out);
}
.snav__burger-lines i:nth-child(1) { width: 14px; }
.snav__burger-lines i:nth-child(2) { width: 18px; }
.snav__burger-lines i:nth-child(3) { width: 14px; }
/* Open → diamond turns, lines morph into an X */
.snav__burger[aria-expanded="true"] .snav__burger-diamond { transform: rotate(135deg); }
/* Closed = light blue, open = dark blue. No other colors, no hover change. */
.snav__burger[aria-expanded="true"] .snav__burger-diamond { background: var(--ink); }
.snav__burger[aria-expanded="true"] .snav__burger-lines i:nth-child(1) { width: 18px; transform: translateY(6px) rotate(45deg); }
.snav__burger[aria-expanded="true"] .snav__burger-lines i:nth-child(2) { opacity: 0; }
.snav__burger[aria-expanded="true"] .snav__burger-lines i:nth-child(3) { width: 18px; transform: translateY(-6px) rotate(-45deg); }

/* Mobile menu panel that drops below the bar. */
.snav__menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  display: none;
  flex-direction: column;
  gap: 2px;
  padding: 10px clamp(24px, 6vw, 56px) 22px;
  background: var(--paper);
  border-bottom: 1px solid var(--ink-10);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--d-base) var(--ease-out),
              transform var(--d-base) var(--ease-out),
              visibility var(--d-base) var(--ease-out);
}
.snav.is-menu-open .snav__menu {
  opacity: 1;
  visibility: visible;
  transform: none;
}
.snav__menu a:not(.btn) {
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 48px;
  padding: 6px 2px;
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 17px;
  color: var(--ink);
  border-bottom: 1px solid var(--ink-06);
  transition: color var(--d-fast) var(--ease-out);
}
.snav__menu a:not(.btn):hover { color: var(--blue-deep); }
.snav__menu a.is-current { font-weight: 800; }
.snav__menu-phone svg { color: var(--blue); flex: none; }
.snav__menu .btn { justify-content: center; width: 100%; }
.snav__menu-phone { margin-top: 16px; }
.snav__menu .btn--primary { margin-top: 10px; }

/* Services sub-items inside the mobile menu — a collapsible accordion under the
   Services toggle so the dropdown's options are reachable on phones too. */
/* Services row: the text links straight to the Services page; the chevron
   button is a separate tap target that only toggles the sub-items. */
.snav__submenu-row {
  display: flex;
  align-items: center;
  border-bottom: 1px solid var(--ink-06);
}
.snav__menu a.snav__submenu-link {
  flex: 1 1 auto;
  border-bottom: 0;
}
.snav__submenu-toggle {
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  min-height: 48px;
  margin-left: 4px;
  padding: 0;
  background: none;
  border: 0;
  color: var(--ink);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.snav__chevron {
  flex: none;
  color: var(--ink-40);
  transition: transform var(--d-base) var(--ease-out), color var(--d-fast) var(--ease-out);
}
.snav__submenu-toggle[aria-expanded="true"] .snav__chevron { transform: rotate(180deg); color: var(--blue); }
.snav__submenu {
  display: flex;
  flex-direction: column;
  padding-left: 16px;
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height var(--d-base) var(--ease-out), opacity var(--d-base) var(--ease-out);
}
.snav__submenu.is-open {
  max-height: 360px;
  opacity: 1;
}
.snav__menu .snav__submenu a:not(.btn) {
  min-height: 44px;
  font-size: 15px;
  font-weight: 500;
  color: var(--ink-60);
}
.snav__menu .snav__submenu a:not(.btn):hover { color: var(--blue-deep); }

/* Tablet range — keep the full desktop header, just tighten spacing so the
   logo, links, phone, and button all fit comfortably. */
@media (max-width: 1080px) and (min-width: 761px) {
  .snav__inner { padding: 0 32px; gap: 20px; }
  .snav__links { gap: 22px; margin-left: 12px; }
  .snav__link { font-size: 14px; }
  .snav__phone { font-size: 14px; }
}

/* Phone only — collapse to the hamburger menu. */
@media (max-width: 760px) {
  .snav__links { display: none; }
  .snav__phone { display: none; }
  .snav__burger { display: grid; }
  .snav__inner > .btn--primary { display: none; }
  .snav__menu { display: flex; }
}
@media (max-width: 560px) {
  .snav__inner { padding: 0 28px; height: 72px; }
}