:root{
  --sdu-blue:#0a2a6b;
  --sdu-blue-dark:#061a46;
  --sdu-yellow:#f2b100;
  --sdu-yellow-dark:#d89a00;
  --sdu-white:#ffffff;
  --sdu-border:#dbe4f0;
  --sdu-text:#1c2533;
  --sdu-text-light:#69758a;
  --sdu-container:1280px;
  --sdu-transition:all .3s ease;
}

*{
  margin:0;
  padding:0;
  box-sizing:border-box;
}

body{
  font-family:"Poppins",sans-serif;
  overflow-x:hidden;
}

a{
  text-decoration:none;
  color:inherit;
}

img{
  display:block;
  max-width:100%;
}

.sdu-container{
  width:min(100% - 32px, var(--sdu-container));
  margin:0 auto;
}

.sdu-header{
  position:sticky;
  top:0;
  z-index:9999;
  background:#fff;
  border-bottom:1px solid rgba(10,42,107,.08);
  box-shadow:0 2px 10px rgba(0,0,0,.04);
}

.sdu-header-inner{
  min-height:82px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:22px;
}

.sdu-logo{
  display:flex;
  align-items:center;
  flex-shrink:0;
  max-width:290px;
}

.sdu-logo img{
  max-width:220px;
  height:70px;
  width:auto;
}

/* desktop nav */
.sdu-nav{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:28px;
  flex:1;
}

.sdu-nav > a,
.sdu-nav-item > a{
  color:var(--sdu-blue-dark);
  font-size:15px;
  font-weight:600;
  line-height:1;
  padding:30px 0;
  display:inline-flex;
  align-items:center;
  white-space:nowrap;
  position:relative;
  transition:var(--sdu-transition);
}

.sdu-nav-item{
  position:relative;
  display:flex;
  align-items:center;
}

.sdu-nav > a:hover,
.sdu-nav-item > a:hover{
  color:var(--sdu-blue);
}

.sdu-mega-menu{
  position:absolute;
  top:100%;
  left:50%;
  transform:translateX(-50%) translateY(12px);
  width:780px;
  background:#fff;
  border:1px solid var(--sdu-border);
  border-radius:20px;
  box-shadow:0 20px 50px rgba(15,4,76,.14);
  padding:24px;
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:24px;
  opacity:0;
  visibility:hidden;
  pointer-events:none;
  transition:.25s ease;
  z-index:9999;
}

.sdu-nav-item.sdu-has-mega:hover > .sdu-mega-menu{
  opacity:1;
  visibility:visible;
  pointer-events:auto;
  transform:translateX(-50%) translateY(0);
}

.sdu-mega-col h4{
  font-size:15px;
  font-weight:700;
  color:var(--sdu-blue-dark);
  margin:0 0 10px;
  padding-bottom:8px;
  border-bottom:2px solid rgba(242,177,0,.45);
}

.sdu-mega-col a{
  display:block;
  color:var(--sdu-text-light);
  font-size:13px;
  line-height:1.5;
  padding:6px 0;
  transition:var(--sdu-transition);
}

.sdu-mega-col a:hover{
  color:var(--sdu-blue-dark);
  padding-left:4px;
}

/* buttons */
.sdu-header-right{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}

.sdu-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:0 18px;
  border-radius:14px;
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:var(--sdu-transition);
}

.sdu-btn-outline{
  background:#fff;
  color:var(--sdu-blue-dark);
  border:1px solid var(--sdu-border);
}

.sdu-btn-primary{
  background:linear-gradient(135deg,var(--sdu-yellow),#ffcb2e);
  color:var(--sdu-blue-dark);
  box-shadow:0 10px 24px rgba(242,177,0,.25);
}

.sdu-menu-btn{
  display:none;
  width:44px;
  height:44px;
  border:none;
  border-radius:12px;
  background:var(--sdu-blue);
  color:#fff;
  font-size:22px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
}

/* mobile panel default hidden */
.sdu-mobile-panel{
  display:none;
}

.sdu-mobile-nav{
  display:flex;
  flex-direction:column;
}

.sdu-mobile-nav > a,
.sdu-mobile-toggle{
  width:100%;
  padding:15px 4px;
  border:none;
  border-bottom:1px solid #eef2f7;
  background:none;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:#061a46;
  font-family:"Poppins",sans-serif;
  display:flex;
  align-items:center;
  justify-content:space-between;
  cursor:pointer;
}

.sdu-mobile-toggle span{
  font-size:20px;
  line-height:1;
  color:#0a2a6b;
  transition:.3s ease;
}

.sdu-mobile-item.active .sdu-mobile-toggle span{
  transform:rotate(45deg);
}

.sdu-mobile-dropdown{
  display:none;
  padding:8px 0 10px 14px;
  background:#f8fbff;
  border-bottom:1px solid #eef2f7;
}

.sdu-mobile-item.active .sdu-mobile-dropdown{
  display:block;
}

.sdu-mobile-dropdown a{
  display:block;
  padding:10px 0;
  font-size:14px;
  font-weight:500;
  color:#69758a;
}

.sdu-mobile-btns{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-top:14px;
}

/* 1199 */
@media (max-width:1199px){
  .sdu-nav{
    gap:18px;
  }

  .sdu-nav > a,
  .sdu-nav-item > a{
    font-size:14px;
  }

  .sdu-logo img{
    max-width:190px;
    height:64px;
  }
}

/* 991 */
@media (max-width:991px){
  .sdu-header-inner{
    min-height:74px;
  }

  .sdu-logo img{
    max-width:160px;
    height:auto;
  }

  .sdu-nav{
    display:none;
  }

  .sdu-header-right .sdu-btn{
    display:none;
  }

  .sdu-menu-btn{
    display:inline-flex;
  }

  .sdu-mobile-panel.active{
    display:block;
    background:#fff;
    border-top:1px solid var(--sdu-border);
    padding:12px 16px 18px;
    box-shadow:0 14px 30px rgba(0,0,0,.08);
  }
}

/* 767 */
@media (max-width:767px){
  .sdu-container{
    width:min(100% - 24px, var(--sdu-container));
  }

  .sdu-logo img{
    max-width:145px;
  }
}
.sdu-whatsapp-float{
  position: fixed;
  right: 18px;
  bottom: 22px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 24px rgba(0,0,0,.18);
  z-index: 9999;
  transition: transform .25s ease, box-shadow .25s ease;
}

.sdu-whatsapp-float:hover{
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 14px 30px rgba(0,0,0,.24);
}

.sdu-whatsapp-float svg{
  width: 28px;
  height: 28px;
}

/* Mobile fix */
@media (max-width: 767px){
  .sdu-whatsapp-float{
    width: 50px;
    height: 50px;
    right: 12px;
    bottom: 70px; /* upar le aayega */
  }

  .sdu-whatsapp-float svg{
    width: 24px;
    height: 24px;
  }
}