* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: #222;
  background: #f7f7f8;
}

.navbar {
  background: #222;
  color: #fff;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar .brand {
  font-weight: bold;
  font-size: 1.1em;
}

.nav-links a {
  color: #ddd;
  text-decoration: none;
  margin-left: 18px;
  font-size: 0.95em;
}
.nav-links a:hover { color: #fff; }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 30px 20px 60px;
}

h1 { font-size: 1.6em; margin-bottom: 20px; }
h2 { font-size: 1.15em; margin: 0 0 12px; }

.lookup-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.lookup-row label { font-size: 1em; min-width: 110px; }

.lookup-row input {
  padding: 8px 10px;
  font-size: 1em;
  border: 1px solid #ccc;
  border-radius: 4px;
  min-width: 240px;
}

.lookup-row button,
button {
  padding: 8px 16px;
  font-size: 1em;
  background: #1155cc;
  color: #fff;
  border: none;
  border-radius: 4px;
  cursor: pointer;
}
.lookup-row button:hover, button:hover { background: #0d3f99; }

.btn-link {
  display: inline-block;
  margin-bottom: 16px;
  color: #1155cc;
  text-decoration: none;
  font-weight: bold;
}
.btn-link:hover { text-decoration: underline; }

.panel {
  background: #fff;
  border: 1px solid #e2e2e2;
  border-radius: 6px;
  padding: 18px;
  margin-bottom: 24px;
}

.certificate-img {
  width: 100%;
  max-width: 700px;
  display: block;
  border-radius: 4px;
}

.image-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 14px;
}

.image-grid .thumb {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid #ddd;
  transition: transform 0.15s ease;
}
.image-grid .thumb:hover { transform: scale(1.03); }

.gallery-card { text-align: center; }
.gallery-label {
  margin-top: 6px;
  font-size: 0.8em;
  color: #555;
  word-break: break-all;
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.video-wrap {
  position: relative;
  padding-top: 56.25%;
  border: 1px solid #ddd;
  border-radius: 4px;
  overflow: hidden;
}
.video-wrap iframe {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  border: 0;
}

.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  align-items: center;
  justify-content: center;
  z-index: 999;
  cursor: zoom-out;
}
.lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: 4px;
}