/* Shared sticky header + hamburger menu (all pages) */

body.menu-open {
  overflow: hidden;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-h, 68px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0 1.25rem;
  background: rgba(247, 248, 250, 0.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.header-left {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
  flex-shrink: 0;
}

.menu-toggle {
  flex-shrink: 0;
  width: 42px;
  height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease);
}

.menu-toggle:hover {
  background: var(--bg-soft);
}

.menu-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.hamburger {
  width: 18px;
  height: 12px;
  position: relative;
  display: block;
}

.hamburger span {
  position: absolute;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.35s var(--ease), opacity 0.25s var(--ease), top 0.35s var(--ease);
}

.hamburger span:nth-child(1) { top: 0; }
.hamburger span:nth-child(2) { top: 5px; }
.hamburger span:nth-child(3) { top: 10px; }

.menu-toggle[aria-expanded="true"] .hamburger span:nth-child(1) {
  top: 5px;
  transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .hamburger span:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .hamburger span:nth-child(3) {
  top: 5px;
  transform: rotate(-45deg);
}

.logo {
  display: inline-flex;
  align-items: center;
  min-width: 0;
}

.logo-text {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.35rem;
  line-height: 28px;
  height: 28px;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: min(280px, 42vw);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-left: auto;
  min-width: 0;
}

.social-links {
  display: flex;
  align-items: center;
  gap: 0.2rem;
  flex-wrap: nowrap;
  max-width: min(100%, 280px);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: 0.15rem 0;
}

.social-links::-webkit-scrollbar {
  display: none;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  flex-shrink: 0;
  transition: background 0.25s var(--ease), transform 0.25s var(--ease), opacity 0.25s var(--ease);
  opacity: 0.9;
}

.social-links a:hover {
  background: var(--bg-soft);
  opacity: 1;
  transform: translateY(-1px);
}

.social-links a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.social-links img {
  width: 18px;
  height: 18px;
  object-fit: contain;
}

.store-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.35rem;
  border-radius: var(--radius-pill, 999px);
  background: var(--store, #14151a);
  color: #fff;
  font-weight: 600;
  font-size: 0.925rem;
  letter-spacing: 0.01em;
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
  white-space: nowrap;
  flex-shrink: 0;
}

.store-btn:hover {
  background: var(--store-hover, #2a2c35);
  transform: translateY(-1px);
}

.store-btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(20, 21, 26, 0.28);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s var(--ease), visibility 0.35s var(--ease);
  z-index: 998;
}

.nav-backdrop.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-nav {
  position: fixed;
  top: var(--header-h, 68px);
  left: 0;
  width: min(320px, 88vw);
  height: calc(100vh - var(--header-h, 68px));
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 1.5rem 1.25rem;
  transform: translateX(-105%);
  transition: transform 0.4s var(--ease), visibility 0s linear 0.4s;
  z-index: 999;
  box-shadow: var(--shadow-soft, 0 10px 30px rgba(20, 21, 26, 0.06));
  visibility: hidden;
  pointer-events: none;
  font-family: var(--font-display);
}

.mobile-nav.is-open {
  transform: translateX(0);
  visibility: visible;
  pointer-events: auto;
  transition: transform 0.4s var(--ease), visibility 0s;
}

.mobile-nav ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
}

.mobile-nav a {
  display: block;
  padding: 0.9rem 1rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1.05rem;
  transition: background 0.25s var(--ease), color 0.25s var(--ease);
}

.mobile-nav a:hover {
  background: var(--bg);
  color: var(--accent);
}

.mobile-nav a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav-dropdown {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.nav-dropdown-header {
  display: flex;
  align-items: stretch;
  gap: 0.35rem;
}

.nav-dropdown-header .nav-home-link,
.nav-dropdown-header .nav-dropdown-label {
  flex: 1;
  min-width: 0;
}

.nav-dropdown-header .nav-dropdown-label {
  display: block;
  padding: 0.9rem 1rem;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1.05rem;
  font-family: inherit;
  color: inherit;
  background: transparent;
  border: none;
  text-align: left;
  cursor: default;
}

.nav-dropdown-toggle {
  flex: 0 0 32px;
  width: 32px;
  height: 32px;
  align-self: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  transition: background 0.25s var(--ease), transform 0.25s var(--ease);
}

.nav-dropdown-toggle:hover {
  background: var(--bg-soft);
}

.nav-dropdown-toggle:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav-dropdown-toggle .chevron {
  position: relative;
  left: -2%;
  width: 8.55px;
  height: 8.55px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  transition: transform 0.3s var(--ease), left 0.3s var(--ease);
}

.nav-dropdown-toggle[aria-expanded="true"] .chevron {
  transform: rotate(225deg) translateY(-1px);
}

.nav-submenu {
  list-style: none;
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.35s var(--ease);
  padding-left: 0.5rem;
  margin: 0;
  gap: 0.2rem;
}

.nav-submenu.is-open {
  grid-template-rows: 1fr;
}

.nav-submenu-inner {
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  min-height: 0;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-submenu a {
  font-size: 0.98rem;
  font-weight: 500;
  padding: 0.75rem 1rem;
  color: var(--ink-muted);
}

.nav-submenu a:hover {
  color: var(--accent);
}

@media (max-width: 900px) {
  .logo-text {
    font-size: 1.1rem;
    line-height: 22px;
    height: 22px;
    max-width: min(200px, 36vw);
  }

  .header-right .social-links {
    max-width: min(42vw, 200px);
  }

  .header-right .social-links a {
    width: 28px;
    height: 28px;
  }

  .header-right .social-links img {
    width: 16px;
    height: 16px;
  }
}

@media (max-width: 520px) {
  .site-header {
    padding: 0 0.75rem;
    gap: 0.45rem;
  }

  .header-right {
    gap: 0.4rem;
  }

  .header-right .social-links {
    max-width: 38vw;
    gap: 0;
  }

  .store-btn {
    padding: 0.55rem 1rem;
    font-size: 0.85rem;
  }
}