/* Header dan navigasi standar SPMI Universitas Presiden */
header {
  background-color: #203E77;
  color: white;
  padding: 0;
  border-bottom: 5px solid #ffcc00;
  overflow: visible;
  position: relative;
  z-index: 9999;
}

.header-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  justify-content: space-between;
  align-items: stretch;
  height: 80px;
}

.logo { display: flex; align-items: center; }
.logo h1 { margin: 0; font-size: 24px; color: white; }
.logo small { font-size: 14px; opacity: 0.8; }

nav { height: 100%; }
nav > ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  align-items: center;
  height: 100%;
}

nav > ul > li {
  position: relative;
  height: 100%;
  display: flex;
  align-items: center;
}

nav > ul > li > a {
  color: white;
  font-weight: 500;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
}

nav > ul > li > a:hover { background-color: rgba(255, 255, 255, 0.1); }

nav ul ul {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  position: absolute;
  top: 100%;
  left: 0;
  height: auto;
  max-height: none;
  background-color: #14335e;
  min-width: 220px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
  z-index: 10000;
  border-top: 3px solid #ffcc00;
  border-radius: 0 0 6px 6px;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

nav ul ul li {
  position: static;
  height: auto;
  width: 100%;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

nav ul ul li:last-child { border-bottom: none; }
nav ul ul li a {
  padding: 12px 20px;
  display: block;
  width: 100%;
  font-size: 14px;
  color: #fff;
  transition: background-color 0.2s ease, padding-left 0.2s ease;
}

nav ul ul li a:hover {
  background-color: #0c284d;
  padding-left: 25px;
  color: #ffcc00;
}

nav > ul > li:hover > ul,
nav ul ul:hover {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.arrow-down { font-size: 10px; margin-left: 5px; vertical-align: middle; }

@media (max-width: 768px) {
  .header-container { height: auto; flex-direction: column; padding: 20px; }
  nav > ul { flex-direction: column; width: 100%; margin-top: 15px; }
  nav > ul > li { width: 100%; justify-content: center; flex-direction: column; }
  nav ul ul {
    position: static;
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    display: none;
    width: 100%;
    border-top: none;
    border-radius: 0;
    box-shadow: none;
  }
  nav > ul > li:hover > ul { display: flex; }
}