/**
 * SwiftPress Navigation CSS — v3 (overflow-fixed)
 *
 * Root cause of the right-overflow bug:
 *   `will-change: transform` on .sp-site-header creates a new stacking
 *   context, which makes `position:fixed` children position relative to
 *   THAT element, not the viewport. The drawer hangs off-screen to the
 *   right and the browser expands the scroll width to accommodate it.
 *
 * Fix: The drawer is a sibling of the header (in footer.php / header.php),
 *   NOT a child. `will-change` is removed from the header.
 *   The body gets `overflow-x: hidden` only when the menu is open (via JS).
 *   Smooth transition uses cubic-bezier for a natural feel.
 */

/* ─── Site Logo ──────────────────────────────────────────────────── */
.sp-site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
  text-decoration: none;
}

.sp-site-logo img {
  height: 36px;
  width: auto;
}

.sp-site-title {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-bold);
  color: var(--color-text);
  white-space: nowrap;
  line-height: 1;
  text-decoration: none;
  display: block;
}

.sp-site-title:hover { color: var(--color-primary); }

/* ─── Mobile toggle — hidden on desktop ─────────────────────────── */
.sp-menu-toggle {
  display: none;
}

/* ─── Primary Nav wrapper — desktop ────────────────────────────────
   On desktop: simple inline flex.
   On mobile: off-canvas drawer (see @media below).
   CRITICAL: no position:fixed here — that only applies at mobile.
──────────────────────────────────────────────────────────────────── */
.sp-primary-nav {
  display: flex;
  align-items: center;
}

/* ─── Nav Menu list — desktop ───────────────────────────────────── */
.sp-nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
  padding: 0;
  margin: 0;
}

.sp-nav-menu > .menu-item > a {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
}

.sp-nav-menu > .menu-item > a:hover,
.sp-nav-menu > .menu-item.current-menu-item > a,
.sp-nav-menu > .menu-item.current-menu-ancestor > a {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}

/* ─── Dropdown Submenu — desktop ─────────────────────────────────── */
.menu-item-has-children {
  position: relative;
}

.menu-item-has-children > a::after {
  content: '';
  display: inline-block;
  width: 0.4em;
  height: 0.4em;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-0.1em) rotate(45deg);
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.menu-item-has-children:hover > a::after,
.menu-item-has-children.is-open > a::after {
  transform: translateY(0.1em) rotate(225deg);
}

.sub-menu {
  position: absolute;
  top: calc(100% + var(--space-2));
  left: 0;
  min-width: 200px;
  background: var(--color-surface);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  list-style: none;
  padding: var(--space-2) 0;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition:
    opacity var(--transition-fast),
    visibility var(--transition-fast),
    transform var(--transition-fast);
  z-index: 200;
}

.menu-item:last-child .sub-menu {
  left: auto;
  right: 0;
}

.menu-item-has-children:hover > .sub-menu,
.menu-item-has-children:focus-within > .sub-menu,
.menu-item-has-children.is-open > .sub-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.sub-menu .menu-item a {
  display: block;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text);
  text-decoration: none;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.sub-menu .menu-item a:hover {
  background: var(--color-bg-alt);
  color: var(--color-primary);
}

/* Overlay hidden on desktop */
.sp-nav-overlay {
  display: none;
}

/* ─── MOBILE ≤768px ──────────────────────────────────────────────── */
@media (max-width: 991px) {

  /* ── Hamburger button ── */
  .sp-menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: none;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--color-text);
    padding: var(--space-2);
    flex-shrink: 0;
    /* Sit above content but below drawer */
    position: relative;
    z-index: 102;
  }

  .sp-menu-toggle:hover {
    background: var(--color-bg-alt);
    border-color: var(--color-primary);
  }

  /* ── Hamburger icon bars ── */
  .sp-menu-toggle-icon {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    width: 18px;
    height: 13px;
    pointer-events: none;
  }

  .sp-menu-toggle-icon span {
    display: block;
    width: 100%;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    /* Each bar transitions independently */
    transition:
      transform 280ms cubic-bezier(0.4, 0, 0.2, 1),
      opacity   180ms ease,
      width     280ms cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center center;
    will-change: transform;
  }

  /* Hamburger → X (applied directly on the button via JS aria-expanded) */
  .sp-menu-toggle[aria-expanded="true"] .sp-menu-toggle-icon span:nth-child(1) {
    transform: translateY(5.5px) rotate(45deg);
  }
  .sp-menu-toggle[aria-expanded="true"] .sp-menu-toggle-icon span:nth-child(2) {
    opacity: 0;
    width: 0;
  }
  .sp-menu-toggle[aria-expanded="true"] .sp-menu-toggle-icon span:nth-child(3) {
    transform: translateY(-5.5px) rotate(-45deg);
  }

  /* ── Off-canvas drawer ──────────────────────────────────────────
     KEY FIXES:
     1. position:fixed on the DRAWER (not a child of header)
     2. NO will-change on parent header — that was creating new
        stacking context and making fixed children escape viewport
     3. translateX(100%) hides it right, NOT left:-9999px or display:none
     4. The body clips the overflow via .menu-is-open class (JS-toggled)
     5. cubic-bezier gives a natural ease-out-cubic feel, no jerk
  ────────────────────────────────────────────────────────────────── */
  .sp-primary-nav {
    /* Override desktop flex */
    display: none;
    /* Fixed to viewport — NOT relative to any parent */
    position: fixed;
    top: 110px;
    right: 0;
    bottom: 0;
    left: auto;
    /* Width: comfortable on all phones */
    width: min(280px, 78vw);
    /* Visible surface */
    background: var(--color-bg);
    border-left: 1px solid var(--color-border);
    box-shadow: -4px 0 24px rgb(0 0 0 / 0.12);
    /* Internal padding & scroll */
    padding: 0px;
    overflow-y: auto;
    overscroll-behavior-y: contain;
    /* Layer order */
    z-index: 101;
    /* Smooth: ease-out-cubic feels natural, no jerk on open/close */
    /*transition: transform 300ms cubic-bezier(0.4, 0, 0.2, 1);*/
    /* NO will-change here — only add it while animating (JS handles) */
  }

  /* Drawer open state */
  .sp-primary-nav.is-open {
      padding: 10px;
    transform: translateX(0);
    display: block !important;
  }

  /* ── Overlay backdrop ── */
  .sp-nav-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background: rgb(0 0 0 / 0);
    z-index: 100;
    /* Hidden: pointer-events off, invisible */
    pointer-events: none;
    visibility: hidden;
    /* Fade in/out */
    transition:
      background 300ms cubic-bezier(0.4, 0, 0.2, 1),
      visibility 300ms;
  }

  .sp-nav-overlay.is-visible {
    background: rgb(0 0 0 / 0.45);
    pointer-events: all;
    visibility: visible;
  }

  /* ── Menu list — vertical stack ── */
  .sp-nav-menu {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
  }

  .sp-nav-menu > .menu-item {
    border-bottom: 1px solid var(--color-border);
  }

  .sp-nav-menu > .menu-item:first-child {
    border-top: 1px solid var(--color-border);
  }

  .sp-nav-menu > .menu-item > a {
    display: flex;
    align-items: center;
    width: 100%;
    padding: var(--space-3) var(--space-1);
    font-size: var(--text-base);
    border-radius: 0;
  }

  .sp-nav-menu > .menu-item > a:hover {
    background: var(--color-bg-alt);
    padding-left: var(--space-3);
    transition: padding var(--transition-fast), background var(--transition-fast);
  }

  /* Caret pushes to right edge */
  .menu-item-has-children > a::after {
    margin-left: auto;
  }

  /* ── Mobile submenus: inline accordion, NOT absolute ── */
  .sub-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    border-radius: 0;
    background: var(--color-bg-alt);
    padding: var(--space-2) 0 var(--space-2) var(--space-5);
    /* Collapsed */
    display: none;
    transition: none;
  }

  .menu-item-has-children.is-open > .sub-menu {
    display: block;
  }

  /* Disable desktop :hover-open on mobile */
  .menu-item-has-children:hover > .sub-menu {
    display: none;
  }
  .menu-item-has-children.is-open > .sub-menu {
    display: block !important;
  }
}