/* =================================================================
   RESPONSIVE MEGA MENU  -  mobile first

   Written mobile-first on purpose. Every desktop rule lives inside
   @media (min-width:1025px), so nothing from the desktop mega panel
   can leak into the mobile drawer.

     base       < 768   phone   drawer, single column
     >= 768     tablet          drawer, cards two-up
     >= 1025    laptop          horizontal bar, mega panel
     >= 1200    desktop         1140px panel
     >= 1600    big LCD         1440px panel, larger type
   ================================================================= */

.mega-nav{
  --accent:#2EDAF1;
  --panel-bg:#01141D;
  --card-bg:rgba(0,225,255,.09);
  --text:#FFFFFF;
  --text-dim:rgba(255,255,255,.78);
  --hairline:rgba(255,255,255,.14);
  --font-display:'Orbitron',sans-serif;
  --font-body:'Poppins',sans-serif;

  --maxw:1140px;
  --link-size:16px;
  --link-pad-x:14px;
  --caret-gap:10px;
  --caret-size:7px;
  --col-min:210px;
  --panel-gap:20px;

  position:relative;
  font-family:var(--font-body);
}
.mega-nav *,.mega-nav *::before,.mega-nav *::after{box-sizing:border-box}
.mega-nav ul{margin:0;padding:0;list-style:none}
.mega-nav li{position:relative}
.mega-nav a{
  display:block;text-decoration:none;color:var(--text);
  font-size:var(--link-size);font-weight:600;
  transition:color .18s ease,background-color .16s ease;
}
.mega-nav a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}

/* ---------- burger ---------- */
.mega-nav__toggle{
  display:flex;align-items:center;justify-content:center;
  width:44px;height:44px;padding:0;margin:0;
  background:none;border:0;cursor:pointer;
}
.mega-nav__bars{position:relative}
.mega-nav__bars,
.mega-nav__bars::before,
.mega-nav__bars::after{
  display:block;width:24px;height:2px;background:var(--accent);
  transition:transform .25s ease,top .25s ease,background .2s ease;
}
.mega-nav__bars::before,.mega-nav__bars::after{content:"";position:absolute;left:0}
.mega-nav__bars::before{top:-8px}
.mega-nav__bars::after{top:8px}
.mega-nav__toggle[aria-expanded="true"] .mega-nav__bars{background:transparent}
.mega-nav__toggle[aria-expanded="true"] .mega-nav__bars::before{top:0;transform:rotate(45deg)}
.mega-nav__toggle[aria-expanded="true"] .mega-nav__bars::after{top:0;transform:rotate(-45deg)}
.mega-nav__toggle:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px}

/* ---------- drawer ---------- */
.mega-nav__panel{
  position:fixed;inset:0;z-index:9999;
  background:var(--panel-bg);
  padding:72px 20px calc(56px + env(safe-area-inset-bottom));
  overflow-y:auto;overscroll-behavior:contain;-webkit-overflow-scrolling:touch;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s;
}
.mega-nav__panel.is-open{opacity:1;visibility:visible;transform:translateY(0)}

.mega-nav__close{
  position:absolute;top:16px;right:16px;
  display:flex;align-items:center;justify-content:center;
  width:44px;height:44px;background:none;border:0;cursor:pointer;
}
.mega-nav__close::before,.mega-nav__close::after{
  content:"";position:absolute;width:22px;height:2px;background:var(--accent);
}
.mega-nav__close::before{transform:rotate(45deg)}
.mega-nav__close::after{transform:rotate(-45deg)}
.mega-nav__close:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:8px}

/* ---------- level 1 rows ---------- */
.mega-nav__list{
  display:flex;flex-direction:column;
  width:100%;max-width:620px;margin:0 auto;
}
.mega-nav__list > li > a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  min-height:54px;padding:14px 2px;font-size:18px;
  border-bottom:1px solid var(--hairline);
}
.mega-nav__list > li.current-menu-item > a,
.mega-nav__list > li.current-menu-ancestor > a{color:var(--accent)}

.mega-nav__list > li.menu-item-has-children > a::after{
  content:"";flex:0 0 auto;
  width:var(--caret-size);height:var(--caret-size);
  border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  border-radius:0 0 2px 0;
  transform:translateY(-25%) rotate(45deg);
  transition:transform .22s ease;
}
.mega-nav__list > li.is-open > a{color:var(--accent)}
.mega-nav__list > li.is-open > a::after{transform:translateY(25%) rotate(-135deg)}

/* ---------- accordion body ----------
   max-height is set to the measured height by the script, so tall submenus
   can never be clipped. The 2400px fallback only applies without JS. */
.mega-nav__list > li > .sub-menu{
  display:block;
  max-height:0;overflow:hidden;
  transition:max-height .3s ease;
}
.mega-nav__list > li.is-open > .sub-menu{max-height:2400px}

/* category card */
.mega-nav__list > li > .sub-menu > li{
  margin:10px 0;padding:14px 16px 16px;
  border-radius:12px;
  background:var(--card-bg);border:1px solid var(--hairline);
}
.mega-nav__list > li > .sub-menu > li.menu-item-has-children::before{
  counter-increment:megacol;
  content:counter(megacol,decimal-leading-zero);
  display:block;margin-bottom:2px;
  font-family:var(--font-display);font-size:13px;font-weight:600;
  letter-spacing:1px;color:var(--accent);
}
.mega-nav__list > li > .sub-menu{counter-reset:megacol}
.mega-nav__list > li > .sub-menu > li > a{
  padding:0 0 8px;
  font-family:var(--font-display);font-size:16px;font-weight:600;letter-spacing:.4px;
}

/* level 3 links */
.mega-nav .sub-menu .sub-menu{display:flex;flex-direction:column;gap:2px}
.mega-nav .sub-menu .sub-menu a{
  display:flex;align-items:center;min-height:44px;
  padding:9px 10px;margin-left:-10px;border-radius:8px;
  font-size:15px;font-weight:400;color:var(--text-dim);
}
.mega-nav .sub-menu .sub-menu a:active{background:rgba(46,218,241,.16);color:var(--accent)}

/* single-level parents render as a plain indented list, no card */
.mega-nav__list > li.is-simple > .sub-menu > li{
  margin:0;padding:0;background:none;border:0;border-radius:0;
}
.mega-nav__list > li.is-simple > .sub-menu > li > a{
  display:flex;align-items:center;min-height:46px;
  padding:10px 10px 10px 16px;margin:2px 0;border-radius:8px;
  font-family:var(--font-body);font-size:16px;font-weight:400;
  letter-spacing:0;color:var(--text-dim);
}
.mega-nav__list > li.is-simple > .sub-menu{padding:6px 0 10px}

/* small phones */
@media (max-width:400px){
  .mega-nav__panel{padding:66px 14px 48px}
  .mega-nav__list > li > a{font-size:17px}
  .mega-nav__list > li > .sub-menu > li{padding:12px 13px 14px}
}

/* =================================================================
   TABLET  -  same drawer, cards two-up
   ================================================================= */
@media (min-width:768px) and (max-width:1024px){
  .mega-nav__panel{padding:84px 32px 64px}
  .mega-nav__list{max-width:860px}
  .mega-nav__list > li > a{font-size:20px;min-height:60px}

  .mega-nav__list > li:not(.is-simple) > .sub-menu{
    display:grid;grid-template-columns:1fr 1fr;
    gap:14px;align-items:stretch;padding:6px 0 12px;
  }
  .mega-nav__list > li:not(.is-simple) > .sub-menu > li{margin:0}
}

/* =================================================================
   LAPTOP AND UP  -  horizontal bar + absolute mega panel
   Everything below is desktop-only and cannot affect the drawer.
   ================================================================= */
@media (min-width:1025px){

  .mega-nav__toggle,
  .mega-nav__close{display:none}

  .mega-nav__panel{
    position:static;inset:auto;z-index:auto;
    background:none;padding:0;overflow:visible;
    opacity:1;visibility:visible;transform:none;transition:none;
  }

  .mega-nav__list{
    flex-direction:row;align-items:center;
    gap:2px;max-width:none;margin:0;width:auto;
  }

  .mega-nav__list > li > a{
    display:block;min-height:0;white-space:nowrap;
    padding:10px var(--link-pad-x);
    font-size:var(--link-size);border-bottom:0;
    background-image:linear-gradient(var(--accent),var(--accent));
    background-repeat:no-repeat;
    background-position:center bottom 2px;
    background-size:0 2px;
    transition:color .18s ease,background-size .22s ease;
  }
  .mega-nav__list > li > a:hover,
  .mega-nav__list > li.current-menu-item > a,
  .mega-nav__list > li.current-menu-ancestor > a{
    color:var(--accent);
    background-size:calc(100% - (var(--link-pad-x) * 2)) 2px;
  }

  .mega-nav__list > li.menu-item-has-children > a::after{
    display:inline-block;vertical-align:middle;
    margin-left:var(--caret-gap);
  }
  .mega-nav__list > li.menu-item-has-children:hover > a::after{
    transform:rotate(-135deg) translate(-2px,-2px);
  }
  .mega-nav__list > li.menu-item-has-children:hover > a{color:var(--accent)}

  /* --- mega panel ---
     The panel breaks out of the narrow <li> to span the viewport.
     --panel-x and --panel-w are written by the script from the item's real
     position, because left:50% resolves against the <li>, not the viewport,
     and 100vw wrongly includes the scrollbar. Defaults keep it usable if the
     script never runs. */
  .mega-nav__list > li > .sub-menu{
    position:absolute;top:100%;
    left:var(--panel-x,0);
    width:var(--panel-w,100vw);max-width:none;
    transform:translateY(-8px);
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(var(--col-min),1fr));
    gap:var(--panel-gap);
    padding:32px var(--panel-pad,24px) 40px;
    background:var(--panel-bg);
    border-top:1px solid var(--hairline);
    border-bottom:1px solid var(--hairline);
    max-height:min(2400px,calc(100vh - 130px));
    overflow-y:auto;overscroll-behavior:contain;
    opacity:0;visibility:hidden;pointer-events:none;
    transition:opacity .2s ease,transform .2s ease,visibility .2s;
  }
  .mega-nav__list > li:hover > .sub-menu,
  .mega-nav__list > li:focus-within > .sub-menu,
  .mega-nav__list > li.is-open > .sub-menu{
    opacity:1;visibility:visible;pointer-events:auto;
    transform:translateY(0);
  }

  .mega-nav__list > li > .sub-menu > li{
    margin:0;padding:18px 18px 20px;border-radius:14px;
    background:var(--card-bg);border:1px solid var(--hairline);
  }
  .mega-nav__list > li > .sub-menu > li.menu-item-has-children::before{
    font-size:14px;margin-bottom:4px;
  }
  .mega-nav__list > li > .sub-menu > li > a{padding:0 0 12px;font-size:18px}
  .mega-nav__list > li > .sub-menu > li > a:hover{color:var(--accent)}

  .mega-nav .sub-menu .sub-menu a{
    min-height:0;padding:7px 10px;font-size:15px;
  }
  .mega-nav .sub-menu .sub-menu a:hover{background:rgba(46,218,241,.14);color:var(--accent)}

  /* --- one level of children: narrow dropdown, not a full panel --- */
  .mega-nav__list > li.is-simple > .sub-menu{
    left:0;right:auto;transform:translateY(-8px);
    width:max-content;min-width:220px;max-width:280px;
    display:block;padding:10px;
    border:1px solid var(--hairline);border-radius:12px;
    max-height:none;overflow:visible;
  }
  .mega-nav__list > li.is-simple:hover > .sub-menu,
  .mega-nav__list > li.is-simple:focus-within > .sub-menu,
  .mega-nav__list > li.is-simple.is-open > .sub-menu{transform:translateY(0)}
  .mega-nav__list > li.is-simple.is-flipped > .sub-menu{left:auto;right:0}
  .mega-nav__list > li.is-simple > .sub-menu > li > a{
    min-height:0;padding:9px 12px;margin:0;font-size:15px;
  }
  .mega-nav__list > li.is-simple > .sub-menu > li > a:hover{
    background:rgba(46,218,241,.14);color:var(--accent);
  }
}

/* =================================================================
   DESKTOP  /  BIG LCD sizing
   ================================================================= */
@media (min-width:1025px) and (max-width:1199px){
  .mega-nav{--link-size:15px;--link-pad-x:10px;--caret-gap:8px;--col-min:180px;--panel-gap:14px}
  .mega-nav__list > li > .sub-menu{padding-left:24px;padding-right:24px}
  .mega-nav__list > li > .sub-menu > li{padding:14px 14px 16px}
  .mega-nav__list > li > .sub-menu > li > a{font-size:16px}
  .mega-nav .sub-menu .sub-menu a{font-size:14px;padding:6px 9px}
}
@media (min-width:1600px){
  .mega-nav{--maxw:1440px;--link-size:17px;--link-pad-x:18px;--col-min:250px;--panel-gap:30px}
  .mega-nav__list > li > .sub-menu{padding-top:42px;padding-bottom:50px}
  .mega-nav__list > li > .sub-menu > li{padding:22px 22px 24px}
  .mega-nav__list > li > .sub-menu > li > a{font-size:20px}
  .mega-nav .sub-menu .sub-menu a{font-size:16px}
}

/* =================================================================
   TOUCH + MOTION
   ================================================================= */
@media (hover:none){
  .mega-nav__list > li:hover > .sub-menu{opacity:0;visibility:hidden;pointer-events:none}
  .mega-nav__list > li.is-open > .sub-menu{opacity:1;visibility:visible;pointer-events:auto}
}
@media (prefers-reduced-motion:reduce){
  .mega-nav *{transition-duration:.01ms !important}
}