/* ====================================================
   Site Header + Footer (header.css)
   Pairs with site.css design tokens
   ==================================================== */

/* Skip link for accessibility */
.skip-link{position:absolute;left:-9999px;z-index:9999;padding:10px 16px;background:var(--blue);color:#fff;border-radius:6px;text-decoration:none}
.skip-link:focus{left:50%;top:8px;transform:translateX(-50%)}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(7,11,20,0.95);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--b);
}
.hdr-inner{
  display:flex;align-items:center;gap:18px;
  max-width:1400px;margin:0 auto;
  padding:0 24px;height:66px;
}

/* Logo */
.hdr-logo{display:flex;align-items:center;gap:11px;text-decoration:none;flex-shrink:0}
.hdr-logo-mark{
  width:38px;height:38px;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;
  box-shadow:0 0 18px rgba(37,99,235,0.4);
}
.hdr-logo-text{display:flex;flex-direction:column;line-height:1.1}
.hdr-logo-name{font-size:15.5px;font-weight:900;color:var(--white)}
.hdr-logo-url{font-size:10px;color:var(--cyan);letter-spacing:.4px;margin-top:2px}

/* Nav */
.hdr-nav{display:flex;align-items:center;gap:4px;margin-right:auto}
.hdr-link{
  display:inline-flex;align-items:center;gap:5px;
  padding:8px 14px;
  border-radius:8px;
  color:var(--muted2);
  font-size:14px;font-weight:700;
  text-decoration:none;
  background:transparent;border:none;cursor:pointer;
  font-family:'Cairo',sans-serif;
  transition:all .18s;
}
.hdr-link:hover{color:var(--white);background:rgba(99,179,255,0.08)}
.hdr-link.active{color:var(--blue3);background:rgba(37,99,235,0.13)}
.hdr-link .caret{font-size:10px;opacity:.7;transition:transform .2s}
.hdr-dropdown.open .hdr-dropdown-btn .caret{transform:rotate(180deg)}

/* Dropdown */
.hdr-dropdown{position:relative}
.hdr-dropdown-menu{
  position:absolute;top:calc(100% + 10px);right:0;
  min-width:640px;
  background:var(--card);
  border:1px solid var(--b2);
  border-radius:14px;
  padding:20px;
  box-shadow:0 16px 48px rgba(0,0,0,0.45);
  opacity:0;visibility:hidden;
  transform:translateY(-8px);
  transition:opacity .2s,transform .2s,visibility .2s;
  z-index:300;
}
.hdr-dropdown.open .hdr-dropdown-menu,
.hdr-dropdown:hover .hdr-dropdown-menu{
  opacity:1;visibility:visible;transform:translateY(0);
}
/* Bridge to prevent menu closing when moving mouse from button to menu */
.hdr-dropdown::after{
  content:'';position:absolute;top:100%;left:0;right:0;height:14px;
}
.hdr-dd-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.hdr-dd-col h4{
  font-size:11px;font-weight:800;
  color:var(--cyan);
  text-transform:uppercase;letter-spacing:.5px;
  margin-bottom:10px;padding-bottom:8px;
  border-bottom:1px solid var(--b);
}
.hdr-dd-col a{
  display:flex;align-items:center;gap:9px;
  padding:8px 10px;
  border-radius:7px;
  color:var(--text);
  font-size:13px;font-weight:600;
  text-decoration:none;
  transition:all .15s;
}
.hdr-dd-col a:hover{background:rgba(37,99,235,0.1);color:var(--white);transform:translateX(-3px)}
.dd-icon{font-size:16px;width:22px;text-align:center;flex-shrink:0}
.hdr-dd-all{
  display:block;margin-top:14px;padding:10px 14px;
  background:rgba(37,99,235,0.13);
  border:1px solid rgba(37,99,235,0.28);
  border-radius:8px;
  text-align:center;
  color:var(--blue3);
  font-size:13px;font-weight:800;
  text-decoration:none;
  transition:all .2s;
}
.hdr-dd-all:hover{background:var(--blue);color:#fff}

/* Search */
.hdr-search{position:relative;width:200px;flex-shrink:0}
.hdr-search input{
  width:100%;
  padding:9px 13px;
  background:var(--card);
  border:1px solid var(--b);
  border-radius:9px;
  color:var(--white);
  font-size:13px;font-family:'Cairo',sans-serif;
  outline:none;transition:border .2s;
}
.hdr-search input:focus{border-color:var(--blue2)}
.hdr-search input::placeholder{color:var(--muted)}

/* Burger menu (mobile) */
.hdr-burger{
  display:none;
  background:transparent;border:none;cursor:pointer;
  width:36px;height:36px;
  flex-direction:column;justify-content:center;align-items:center;gap:5px;
  padding:0;
}
.hdr-burger span{
  display:block;width:22px;height:2.5px;
  background:var(--white);border-radius:2px;
  transition:all .25s;
}
.hdr-burger.active span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.hdr-burger.active span:nth-child(2){opacity:0}
.hdr-burger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Mobile menu panel */
.hdr-mobile{
  display:none;
  position:absolute;top:100%;left:0;right:0;
  background:var(--card);
  border-top:1px solid var(--b);
  max-height:calc(100vh - 66px);overflow-y:auto;
  padding:16px;
}
.hdr-mobile.open{display:block}
.hdr-mobile > a,
.hdr-mobile details > summary{
  display:block;padding:13px 16px;
  color:var(--text);text-decoration:none;
  font-size:14.5px;font-weight:700;
  border-radius:9px;
  cursor:pointer;list-style:none;
  border:1px solid transparent;
}
.hdr-mobile > a:hover,
.hdr-mobile details > summary:hover{background:rgba(99,179,255,0.08);border-color:var(--b)}
.hdr-mobile > a.active{color:var(--blue3);background:rgba(37,99,235,0.13)}
.hdr-mobile details > summary::-webkit-details-marker{display:none}
.hdr-mobile details > summary::after{content:'▾';float:left;transition:transform .2s;font-size:11px}
.hdr-mobile details[open] > summary::after{transform:rotate(180deg)}
.hdr-mob-sub{padding:6px 12px 10px;display:flex;flex-direction:column;gap:2px}
.hdr-mob-sub a{
  padding:9px 14px;font-size:13.5px;color:var(--muted2);
  text-decoration:none;border-radius:7px;
}
.hdr-mob-sub a:hover{background:rgba(99,179,255,0.06);color:var(--white)}
.hdr-mob-all{color:var(--blue3)!important;font-weight:800!important;border-top:1px solid var(--b);margin-top:6px;padding-top:11px!important}

/* Responsive */
@media(max-width:1100px){
  .hdr-search{width:160px}
  .hdr-dropdown-menu{min-width:540px}
}
@media(max-width:900px){
  .hdr-nav,.hdr-search{display:none}
  .hdr-burger{display:flex}
  .hdr-logo-url{display:none}
  .hdr-inner{padding:0 16px;gap:10px}
  .hdr-logo-text{display:none}
  .hdr-logo-name{display:none}
}
@media(min-width:901px){
  .hdr-mobile{display:none!important}
}

/* ============ FOOTER ============ */
.site-footer{
  position:relative;z-index:1;
  border-top:1px solid var(--b);
  background:rgba(7,11,20,0.7);
  padding:48px 24px 28px;
  margin-top:60px;
}
.ft-inner{max-width:1400px;margin:0 auto}
.ft-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr 1fr;
  gap:36px;
  margin-bottom:32px;
}
.ft-col h4{
  font-size:14px;font-weight:800;
  color:var(--white);
  margin-bottom:14px;
}
.ft-col ul{list-style:none;padding:0;margin:0}
.ft-col li{margin-bottom:9px}
.ft-col a{
  color:var(--muted2);
  font-size:13px;
  text-decoration:none;
  transition:color .15s;
}
.ft-col a:hover{color:var(--blue3)}
.ft-brand p{
  font-size:13px;color:var(--muted2);
  line-height:1.85;margin:14px 0 16px;
}
.ft-logo{
  display:inline-flex;align-items:center;gap:10px;
  text-decoration:none;color:var(--white);
  margin-bottom:8px;
}
.ft-logo-mark{
  width:34px;height:34px;
  background:linear-gradient(135deg,var(--blue),var(--cyan));
  border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;
}
.ft-logo strong{font-size:16px;font-weight:900}
.ft-social{display:flex;gap:10px;margin-top:6px}
.ft-social a{
  width:36px;height:36px;
  background:rgba(99,179,255,0.08);
  border:1px solid var(--b);
  border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;text-decoration:none;
  transition:all .2s;
}
.ft-social a:hover{background:rgba(37,99,235,0.2);border-color:var(--b2);transform:translateY(-2px)}

.ft-bottom{
  padding-top:22px;
  border-top:1px solid var(--b);
  text-align:center;
  color:var(--muted);font-size:12.5px;line-height:1.9;
}
.ft-bottom a{color:var(--blue3);text-decoration:none}
.ft-bottom strong{color:var(--white)}

@media(max-width:900px){
  .ft-grid{grid-template-columns:1fr 1fr;gap:24px}
  .ft-brand{grid-column:1/-1}
}
@media(max-width:500px){
  .ft-grid{grid-template-columns:1fr}
  .ft-brand{grid-column:auto}
}