/* KASU Menu (index) - clean, institutional */
:root {
  --kasu-accent: #8e1f63;
  --kasu-text: #14161a;
  --kasu-muted: #5f6b7a;
  --kasu-border: #e6e9ee;
  --kasu-header-height: 72px;
  --kasu-shadow: 0 3px 10px rgba(15, 23, 42, 0.08);
}

.kasu-ui .header-area {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #fff;
  border-bottom: 1px solid var(--kasu-border);
  box-shadow: var(--kasu-shadow);
}

.kasu-ui .header-area .main-nav {
  display: flex;
  align-items: center;
  gap: 24px;
  height: var(--kasu-header-height);
  padding: 0 16px;
}

.kasu-ui .header-area .logo {
  display: inline-flex;
  align-items: center;
  height: 100%;
}

.kasu-ui .header-area .logo img {
  height: 42px;
  width: auto;
  display: block;
}

.kasu-ui .header-area .nav {
  display: flex;
  align-items: stretch;
  gap: 22px;
  margin: 0 0 0 auto;
  padding: 0;
  list-style: none;
  height: var(--kasu-header-height);
  background: transparent;
  box-shadow: none;
  border-radius: 0;
}

.kasu-ui .header-area .nav li {
  display: flex;
  align-items: stretch;
  height: 100%;
  margin: 0;
  padding: 0;
}

.kasu-ui .header-area .nav li.nav-cta {
  margin-left: auto;
}

.kasu-ui .header-area .nav li.nav-secondary {
  position: relative;
  padding-left: 18px;
}

.kasu-ui .header-area .nav li.nav-secondary::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 24px;
  background: var(--kasu-border);
}

.kasu-ui .header-area .nav li a {
  display: inline-flex;
  align-items: center;
  height: 100%;
  padding: 0 2px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--kasu-text);
  text-decoration: none;
  position: relative;
  background: transparent;
  border-radius: 0;
  box-shadow: none;
  transition: color 0.2s ease;
}

.kasu-ui .header-area .nav li a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: transparent;
  transition: background 0.2s ease;
}

.kasu-ui .header-area .nav li a:hover,
.kasu-ui .header-area .nav li a:focus,
.kasu-ui .header-area .nav li a.active {
  color: var(--kasu-accent);
}

.kasu-ui .header-area .nav li a:hover::after,
.kasu-ui .header-area .nav li a:focus::after,
.kasu-ui .header-area .nav li a.active::after {
  background: var(--kasu-accent);
}

.kasu-ui .header-area .nav li.nav-cta a,
.kasu-ui .header-area .nav li.nav-secondary a {
  color: var(--kasu-accent);
}

.kasu-ui .menu-trigger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--kasu-border);
  background: #fff;
  border-radius: 6px;
  padding: 0;
}

.kasu-ui .menu-trigger span,
.kasu-ui .menu-trigger span::before,
.kasu-ui .menu-trigger span::after {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--kasu-text);
  position: absolute;
  content: "";
}

.kasu-ui .menu-trigger span {
  position: relative;
}

.kasu-ui .menu-trigger span::before {
  top: -6px;
}

.kasu-ui .menu-trigger span::after {
  top: 6px;
}

@media (max-width: 991px) {
  .kasu-ui .header-area .main-nav {
    justify-content: space-between;
  }

  .kasu-ui .menu-trigger {
    display: inline-flex;
  }

  .kasu-ui .header-area .nav {
    position: absolute;
    top: var(--kasu-header-height);
    left: 0;
    right: 0;
    height: auto;
    flex-direction: column;
    background: #fff;
    border-bottom: 1px solid var(--kasu-border);
    display: none;
  }

  .kasu-ui .header-area .nav li {
    height: auto;
    border-top: 1px solid #f1f3f6;
  }

  .kasu-ui .header-area .nav li a {
    height: 52px;
    padding: 0 24px;
  }

  .kasu-ui .header-area .nav li a::after {
    display: none;
  }

  .kasu-ui .header-area .nav li.nav-cta {
    margin-left: 0;
  }

  .kasu-ui .header-area .nav li.nav-secondary {
    padding-left: 0;
  }

  .kasu-ui .header-area .nav li.nav-secondary::before {
    display: none;
  }
}