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

:root {
    --cybatek-dark: #08111d;
    --cybatek-panel: rgba(255, 255, 255, 0.08);
    --cybatek-panel-border: rgba(255, 255, 255, 0.14);
    --cybatek-blue: #1c75ff;
    --cybatek-light-blue: #55c7ff;
    --cybatek-accent: #00e0ff;
    --cybatek-white: #f4f7fa;
    --cybatek-muted: #c9d6e2;
}

body { 
    font-family: Arial, Helvetica, sans-serif;

    background:
        linear-gradient(
            rgba(8, 15, 25, 0.65),
            rgba(8, 15, 25, 0.65)
        ),
        url("../img/pcb_background.jpg");

    background-size: cover;
    background-position: center;
    background-attachment: fixed;

    color: var(--cybatek-white);
    line-height: 1.6;
}

/* Header / Navbar */

.site-header {
    background: rgba(8, 17, 29, 0.88);
    color: white;
    padding: 15px 0;

    border-bottom: 1px solid rgba(85, 199, 255, 0.25);
    box-shadow: 0 2px 18px rgba(0, 0, 0, 0.45);

    backdrop-filter: blur(10px);
}

.site-container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.site-logo a {
    color: white;
    text-decoration: none;

    font-size: 30px;
    font-weight: bold;
    letter-spacing: 3px;

    text-shadow:
        0 0 8px rgba(0, 224, 255, 0.65),
        0 0 18px rgba(28, 117, 255, 0.35);
}

.site-nav a {
    color: white;
    text-decoration: none;

    margin-left: 25px;

    font-weight: 600;
}

.site-nav a:hover,
.site-nav a.active {
    color: var(--cybatek-light-blue);
}

/* Hero */

.hero {
    text-align: center;

    padding: 95px 20px;

    background:
        linear-gradient(
            135deg,
            rgba(8, 17, 29, 0.15),
            rgba(28, 117, 255, 0.12)
        );

    color: white;
}

.hero h1 {
    font-size: 44px;
    margin-bottom: 20px;

    text-shadow: 0 3px 16px rgba(0, 0, 0, 0.65);
}

.hero p {
    font-size: 20px;

    max-width: 820px;
    margin: auto;

    color: var(--cybatek-muted);
}

/* Main Content */

.content {
    max-width: 1200px;

    margin: 40px auto;

    padding: 20px;
}

.content h1,
.content h2 {
    margin-bottom: 20px;

    color: white;
}

.content p {
    color: var(--cybatek-muted);
    margin-bottom: 16px;
}

/* Cards */

.card {
    background: var(--cybatek-panel);

    border: 1px solid var(--cybatek-panel-border);
    border-radius: 15px;

    padding: 25px;

    margin-top: 20px;

    box-shadow: 0 8px 28px rgba(0, 0, 0, 0.32);

    backdrop-filter: blur(12px);
}

.card h2,
.card h3 {
    color: white;
    margin-bottom: 12px;
}

.card p {
    color: var(--cybatek-muted);
}

/* Buttons */

.button {
    display: inline-block;

    margin-top: 15px;

    padding: 10px 22px;

    background: var(--cybatek-blue);

    color: white;

    text-decoration: none;

    border-radius: 7px;

    font-weight: 700;

    box-shadow: 0 0 14px rgba(28, 117, 255, 0.4);
}

.button:hover {
    background: #3a8dff;

    box-shadow: 0 0 18px rgba(85, 199, 255, 0.65);
}

/* Product Images */

.product-image,
.card img {
    max-width: 100%;
    height: auto;

    border-radius: 12px;

    margin-bottom: 15px;

    border: 1px solid rgba(255, 255, 255, 0.18);
}

/* Footer */

.site-footer {
    margin-top: 60px;

    background: rgba(8, 17, 29, 0.92);

    color: var(--cybatek-muted);

    text-align: center;

    padding: 22px;

    border-top: 1px solid rgba(85, 199, 255, 0.25);

    backdrop-filter: blur(10px);
}

/* Legacy compatibility */

header {
    background: rgba(8, 17, 29, 0.88);
    color: white;
}

footer {
    background: rgba(8, 17, 29, 0.92);
    color: var(--cybatek-muted);
}

/* Responsive */

@media (max-width: 760px) {

    .nav-container {
        flex-direction: column;
        gap: 15px;
    }

    .site-nav a {
        margin: 0 10px;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero p {
        font-size: 17px;
    }
}