* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    font-size:1.2em;
	line-height: 1.6;
    color: #333333;
    background: #f5f5f5;
}

header {
    background: #2c3e50;
    color: white;
    padding: 2rem 1rem;
    text-align: center;
}

header h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

header .version {
    font-size: 0.9rem;
    opacity: 0.8;
}

.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.hero {
    background: white;
    padding: 2rem;
    margin-bottom: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.hero h2 {
    color:#000000;
    margin-bottom: 1rem;
}

.hero p {
    margin-bottom: 1rem;
}

.hero .core-definition {
    background: #ecf0f1;
    padding: 1.5rem;
    border-left: 4px solid rgb(36 116 214);
    margin: 1.5rem 0;
    font-style: italic;
}

.download-buttons {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: rgb(36 116 214);
    color: white;
    text-decoration: none;
    border-radius: 4px;
	border:none;
    font-weight: 500;
	font-size:1em;
    transition: background 0.3s;
}

.btn:hover {
    background: #2980b9;
}

.btn-secondary {
    background: #95a5a6;
}

.btn-secondary:hover {
    background: #7f8c8d;
}

.section {
    background: white;
    padding: 2rem;
    margin-bottom: 2rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.section h2 {
    color:#000000;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid rgb(36 116 214);
}

.section h3 {
    color:#000000;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.test-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
}

.test-category {
    background: #ecf0f1;
    padding: 1rem;
    border-radius: 4px;
}

.test-category h4 {
    color:#000000;
    margin-bottom: 0.5rem;  
}

.test-category ul {
    list-style: none;    
}

.test-category li {
    padding: 0.25rem 0;
}

.resources-list {
    list-style: none;
}

.resources-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid #ecf0f1;
}

.resources-list li:last-child {
    border-bottom: none;
}

.resources-list a {
    color: rgb(36 116 214);
    text-decoration: none;
}

.resources-list a:hover {
    text-decoration: underline;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: #e74c3c;
    color: white;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: bold;
    margin-left: 0.5rem;
}

footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 1.5rem;
    margin-top: 2rem;
}

a {
    color:rgb(36 116 214);
}

footer a{
	color:#FFFFFF;
}

[role="tablist"] {
  min-width: 100%;
}

[role="tab"],
[role="tab"]:focus,
[role="tab"]:hover {
  display: inline-block;
  position: relative;
  z-index: 2;
  top: 2px;
  margin: 0;
  margin-top: 4px;
  padding: 3px 1em 4px;
  border: 1px solid hsl(219deg 1% 72%);
  border-bottom: 2px solid hsl(219deg 1% 72%);
  border-radius: 5px 5px 0 0;
  background: hsl(220deg 20% 94%);
  outline: none;
  font-weight: bold;
  font-size:0.9em;
  overflow: hidden;
  text-align: left;
  cursor: pointer;
  height:3em
}

[role="tab"][aria-selected="true"] {
  padding: 2px 1em 4px;
  margin-top: 0;
  border-width: 2px;
  border-top-width: 6px;
  border-top-color: rgb(36 116 214);
  border-bottom-color: hsl(220deg 43% 99%);
  background: hsl(220deg 43% 99%);
}

[role="tab"][aria-selected="false"] {
  border-bottom: 1px solid hsl(219deg 1% 72%);
  opacity:0.55
}


[role="tabpanel"] {
  border-top:1px solid hsl(220deg 43% 99%);
  min-height: 10em;
  overflow: auto;
}

[role="tabpanel"].is-hidden {
  display: none;
}

[role="tabpanel"] p {
  margin: 0;
}

[role="tabpanel"] li {
	margin-bottom:0.5em
}

@media (max-width:1200px){	
    body{
		font-size:1.1em;
	}
}	

@media (max-width: 768px) {
    body{
		font-size:1em;
	}
	
	header h1 {
		font-size: 1.5rem;
    }

    .download-buttons {
		flex-direction: column;
    }

    .test-grid {
		grid-template-columns: 1fr;
    }
}