* {
box-sizing: border-box;
}

body {
margin: 0;
font-family: Arial, Helvetica, sans-serif;
background: #001a0a;
color: #e6ffe6;
line-height: 1.6;
overflow-x: hidden;
}

#cyber-canvas {
position: fixed;
top: 0;
left: 0;
width: 100vw;
height: 100vh;
z-index: -1;
background: #001a0a;
}

header {
padding: 90px 20px 80px;
text-align: center;
background: rgba(0, 20, 8, 0.72);
backdrop-filter: blur(2px);
}

header h1 {
font-size: 3.5rem;
margin: 0;
color: #00ff66;
letter-spacing: 2px;
text-shadow: 0 0 18px rgba(0, 255, 102, 0.55);
}

header p {
max-width: 850px;
margin: 20px auto 0;
font-size: 1.15rem;
color: #c8ffd8;
}

nav {
text-align: center;
padding: 16px;
background: rgba(0, 28, 12, 0.92);
border-top: 1px solid #0f5f2a;
border-bottom: 1px solid #0f5f2a;
position: sticky;
top: 0;
z-index: 10;
backdrop-filter: blur(8px);
}

nav a {
color: #00ff66;
text-decoration: none;
margin: 0 12px;
font-weight: bold;
}

nav a:hover {
color: #b6ffb6;
}

section {
max-width: 1050px;
margin: auto;
padding: 55px 20px;
background: rgba(0, 16, 7, 0.76);
}

h2 {
color: #00ff66;
border-bottom: 1px solid #0f5f2a;
padding-bottom: 8px;
}

.cards {
display: grid;
grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
gap: 20px;
margin-top: 25px;
}

.card {
background: rgba(0, 28, 12, 0.92);
border: 1px solid #0f5f2a;
border-radius: 12px;
padding: 22px;
transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
transform: translateY(-5px);
border-color: #00ff66;
box-shadow: 0 0 22px rgba(0, 255, 102, 0.22);
}

.card h3 {
margin-top: 0;
color: #ffffff;
}

.card a {
color: #00ff66;
font-weight: bold;
text-decoration: none;
}

.card a:hover {
text-decoration: underline;
}

.tags {
margin-top: 20px;
}

.tag {
display: inline-block;
background: rgba(0, 34, 14, 0.95);
border: 1px solid #0f5f2a;
padding: 6px 12px;
border-radius: 20px;
margin: 5px;
font-size: 0.9rem;
}

.button {
display: inline-block;
margin-top: 25px;
padding: 12px 20px;
background: #008f3a;
color: #ffffff;
border-radius: 8px;
text-decoration: none;
font-weight: bold;
box-shadow: 0 0 18px rgba(0, 255, 102, 0.25);
}

.button:hover {
background: #00b84a;
}

footer {
text-align: center;
padding: 30px;
color: #9fc9a8;
border-top: 1px solid #0f5f2a;
background: rgba(0, 12, 5, 0.95);
}

@media (max-width: 700px) {
header h1 {
    font-size: 2.4rem;
}

nav a {
    display: inline-block;
    margin: 6px 8px;
}
}