/* =============================================
   SDE GROUP — HEADER STYLESHEET
   ============================================= */

/* ---- NAVBAR ---- */
.sde-navbar { 
  position: fixed; top: 20px; left: 50%; transform: translateX(-50%); width: 96%; max-width: 1600px; z-index: 1000; padding: 0.5rem 1.5rem; 
  background: #ffffff; 
  border: 1px solid rgba(0, 0, 0, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 50px;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1); 
}
.sde-navbar.scrolled { 
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: 96%;
  max-width: 1600px;
  border-radius: 50px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(15px);
  padding: 0.4rem 1.5rem; 
  box-shadow: 0 15px 40px rgba(0,0,0,0.15); 
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.navbar-brand {
  display: flex;
  align-items: center;
  transition: all 0.3s ease;
}

.navbar-logo { height: 75px; width: auto; object-fit: contain; transition: height 0.3s ease, transform 0.3s ease; }
.sde-navbar.scrolled .navbar-logo { height: 60px; }
.navbar-logo:hover { transform: scale(1.05); }

.sde-navbar .nav-link { color: var(--navy-dark) !important; font-size: 1.0625rem; font-weight: 600; padding: 0.5rem 1rem; position: relative; margin: 0 0.25rem; transition: color 0.3s ease; }
.sde-navbar .nav-link::after { content: ''; position: absolute; bottom: 0; left: 0.75rem; right: 0.75rem; height: 2px; background: var(--gold); transform: scaleX(0); transform-origin: left; transition: transform 0.3s ease; }
.sde-navbar .nav-link:hover, .sde-navbar .nav-link.active { color: var(--gold) !important; }
.sde-navbar .nav-link:hover::after, .sde-navbar .nav-link.active::after { transform: scaleX(1); }

/* Dropdown specific styles */
.sde-navbar .dropdown-menu { border: none; box-shadow: 0 10px 30px rgba(0,0,0,0.08); border-radius: 12px; padding: 1rem 0; margin-top: 0; }
.sde-navbar .dropdown-item { font-weight: 600; color: var(--navy-dark); padding: 0.6rem 1.5rem; font-size: 0.9rem; transition: all 0.2s ease; }
.sde-navbar .dropdown-item:hover { color: var(--gold); background-color: rgba(212, 175, 55, 0.05); padding-left: 1.75rem; }
.sde-navbar .dropdown:hover .dropdown-menu { display: block; }

/* Dropdown specific styles */
.sde-navbar .dropdown-menu { border: none; box-shadow: 0 10px 30px rgba(0,0,0,0.08); border-radius: 12px; padding: 1rem 0; margin-top: 0; }
.sde-navbar .dropdown-item { font-weight: 600; color: var(--navy-dark); padding: 0.6rem 1.5rem; font-size: 0.9rem; transition: all 0.2s ease; }
.sde-navbar .dropdown-item:hover { color: var(--gold); background-color: rgba(212, 175, 55, 0.05); padding-left: 1.75rem; }
.sde-navbar .dropdown:hover .dropdown-menu { display: block; }

.navbar-toggler { border: none; padding: 0; }
.navbar-toggler:focus { box-shadow: none; outline: none; }
.hamburger-lines {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
}
.hamburger-lines .icon-bar {
  display: block;
  height: 2px;
  width: 100%;
  border-radius: 4px;
  background: var(--navy-dark);
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
  transform-origin: center;
}

/* Animation for the "X" when menu is open */
.navbar-toggler[aria-expanded="true"] .hamburger-lines .top-bar {
  transform: translateY(9px) rotate(45deg);
}
.navbar-toggler[aria-expanded="true"] .hamburger-lines .middle-bar {
  opacity: 0;
}
.navbar-toggler[aria-expanded="true"] .hamburger-lines .bottom-bar {
  transform: translateY(-9px) rotate(-45deg);
}

/* ---- HEADER RESPONSIVE ---- */
@media (max-width: 991.98px) {
  .sde-navbar, .sde-navbar.scrolled { 
    position: fixed !important;
    top: 0px !important;
    left: 0px !important;
    right: 0px !important;
    bottom: auto !important;
    transform: translate3d(0, 0, 0) !important;
    width: 100% !important;
    max-width: 100% !important;
    height: auto !important;
    min-height: 70px !important;
    border-radius: 0 !important;
    border-top: none !important;
    border-left: none !important;
    border-right: none !important;
    background: #ffffff !important; 
    border-bottom: 1px solid rgba(0, 0, 0, 0.05) !important;
    padding: 0.75rem 1.5rem !important; 
    margin: 0 !important;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08) !important;
    transition: none !important;
    z-index: 9999 !important;
  }
  .navbar-logo { height: 45px !important; margin: 0; }
  .sde-navbar.scrolled .navbar-logo { height: 45px !important; }
  .navbar-brand { margin: 0; padding: 0; }
  .navbar-toggler { border: none !important; outline: none !important; box-shadow: none !important; padding: 0; margin: 0; }
  .sde-navbar .nav-link { color: var(--navy) !important; padding: 0.75rem 1rem; border-bottom: 1px solid rgba(0,0,0,0.05); }
  .sde-navbar .dropdown-menu { background-color: rgba(255, 255, 255, 0.95); backdrop-filter: blur(10px); border-radius: 12px; box-shadow: 0 10px 30px rgba(0,0,0,0.1); padding: 0.5rem; margin-top: 1rem; border: 1px solid rgba(0,0,0,0.05); }
}