/* === Shared Layout (menu.css) === */

/* ─────────────────────────────────────────────── */
/* Desktop: layout and dividers */
@media (min-width: 1050px) {
  nav#menu {
    border-top: 1px solid var(--divider-color);
    border-bottom: 1px solid var(--divider-color);
    margin-top: 1.5rem;
  }

  ul.headers {
    margin-top: 1rem;
    height: 2rem;
    align-items: stretch;
  }

  li.heads,
  li.headst {
    display: flex;
    align-items: stretch;
  }
}

/* ─────────────────────────────────────────────── */
/* Base structure for menu */
ul.headers {
  list-style: none;
  margin: 0;
  padding: 0;
  background-color: var(--main-menu-bg);
  width: 100%;
  display: flex;
  z-index: 2;
  position: relative;
  flex-direction: row;
}

li.heads,
li.headst {
  margin: 0;
}

li.headst {
  margin-left: auto;
}

a.headlink,
a.login,
a.logout {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  color: var(--main-text-color);
  text-decoration: none;
  font-weight: 300;
  font-size: 1rem;
  gap: 0.4rem;
  padding: 0 0.5rem;
  height: 2rem;
  line-height: 1;
  position: relative;
  background-color: transparent;
  border-radius: 0;
  box-shadow: none;
}

/* Underline effect on hover */
a.headlink::after,
a.login::after,
a.logout::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0;
  height: 2px;
  background-color: var(--main-text-color);
  transition: width var(--transition-medium) ease;
}

a.headlink:hover:not(.active)::after,
a.login:hover:not(.active)::after,
a.logout:hover:not(.active)::after {
  width: 100%;
}

/* Active styling */
a.headlink.active,
a.login.active,
a.logout.active {
  font-weight: 600;
  background-color: transparent;
}



/* ─────────────────────────────────────────────── */
/* Mobile styles */
@media (max-width: 1049px) {
  #menu {
    position: relative;
  }

  #menu-toggle {
    display: block;
    background: none;
    border: none;
    cursor: pointer;
    padding: 1rem;
    position: absolute;
    top: 0;
    right: 1rem;
    z-index: 15;
  }

  #menu-toggle::before {
    transform-origin: center;
    display: inline-block;
    transition: transform 0.3s ease;
  }

  #menu-toggle.open::before {
    transform: rotate(90deg);
  }

  #mobile-menu-wrapper {
    background-color: var(--sidebar-bg);
    position: fixed;
    top: 0;
    right: -280px;
    width: 280px;
    height: 100vh;
    opacity: 1;
    pointer-events: none;
    visibility: hidden;
    transition: right 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
    z-index: 11;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding-top: var(--menu-top-padding, 1rem); /* dynamically overridden in JS */
  }

  #mobile-menu-wrapper.open {
    right: 0;
    opacity: 1;
    pointer-events: auto;
    visibility: visible;
  }

  #mobile-menu-wrapper.open::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    backdrop-filter: blur(4px);
    background: rgba(0, 0, 0, 0.1);
    z-index: -1;
  }

  #menu-overlay-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 10;
    background: transparent;
  }

  #menu-overlay-backdrop.open {
    display: block;
  }

  ul.headers {
    flex-direction: column;
    align-items: stretch;
    margin: 0;
    padding: 0;
    position: relative;
  }

  li.heads,
  li.headst {
    width: 100%;
  }

  a.headlink,
  a.login,
  a.logout {
    width: 100%;
    padding: 2rem 1.5rem;
    font-size: 1.1rem;
    line-height: 1.4;
    color: var(--inverted-text-color);
    background-color: transparent;
    border: none;
    text-align: left;
  }

  a.headlink::after,
  a.login::after,
  a.logout::after {
    background-color: var(--inverted-text-color);
  }

  a.headlink + a.headlink,
  a.login + a.login,
  a.logout + a.logout {
    margin-top: 0.5rem;
  }

  .bracket {
    opacity: 0;
    pointer-events: none;
    font-weight: 600;
    margin: 0 0.3ch;
    transition: opacity var(--transition-medium) ease;
  }

  a.headlink.active .bracket,
  a.login.active .bracket,
  a.logout.active .bracket {
    opacity: 1;
  }
}