/* ===== NAVBAR ===== */
.isuit-navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  transition: box-shadow 0.25s ease;
}
  
.isuit-navbar.scrolled {
  box-shadow: 0 4px 24px rgba(59, 6, 94, 0.10);
} 
   
.isuit-navbar__container {
  max-width: 1200px; 
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo */
.isuit-navbar__brand {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.isuit-navbar__logo {
  width: 110px;
  height: auto;
  display: block;
}

/* Desktop nav */
.isuit-navbar__nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.isuit-nav-link {
  color: #4a4a5a;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  transition: color 0.2s, background 0.2s;
}

.isuit-nav-link:hover {
  color: #3b065e;
  background: rgba(59, 6, 94, 0.06);
}

/* Buttons */
.isuit-nav-btn {
  display: inline-flex;
  align-items: center;
  font-size: 14px;
  font-weight: 600;
  padding: 9px 20px;
  border-radius: 50px;
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.isuit-nav-btn--ghost {
  color: #3b065e;
  border: 1.5px solid #3b065e;
  background: transparent;
}

.isuit-nav-btn--ghost:hover {
  background: #3b065e;
  color: #fff;
}

.isuit-nav-btn--primary {
  background: linear-gradient(135deg, #3b065e, #6a1fa0);
  color: #fff;
  border: 1.5px solid transparent;
}

.isuit-nav-btn--primary:hover {
  background: linear-gradient(135deg, #4e0a7e, #7d28b8);
  color: #fff;
  box-shadow: 0 4px 16px rgba(59, 6, 94, 0.35);
  transform: translateY(-1px);
}

/* Hamburger button */
.isuit-navbar__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  padding: 4px;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: 8px;
  transition: background 0.2s;
}

.isuit-navbar__hamburger:hover {
  background: rgba(59, 6, 94, 0.07);
}

.isuit-navbar__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: #3b065e;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.3s ease;
  transform-origin: center;
}

/* Hamburger → X animation */
.isuit-navbar__hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.isuit-navbar__hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.isuit-navbar__hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ===== MOBILE ===== */
@media (max-width: 768px) {
  .isuit-navbar__hamburger {
    display: flex;
  }

  .isuit-navbar__nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 16px 24px 20px;
    gap: 8px;
    box-shadow: 0 8px 32px rgba(59, 6, 94, 0.12);
    border-top: 1px solid rgba(0,0,0,0.06);
    animation: slideDown 0.25s ease;
  }

  .isuit-navbar__nav.active {
    display: flex;
  }

  .isuit-nav-link {
    padding: 12px 16px;
  }

  .isuit-nav-btn {
    justify-content: center;
    padding: 12px 20px;
    border-radius: 12px;
  }

  @keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
  }
}