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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    background: #0a0a0a;
}

.background-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.02) 0%, transparent 50%),
                #0a0a0a;
    z-index: -1;
}

header {
    text-align: center;
    padding: 3rem 2rem;
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

header h1 {
    font-size: 3.5rem;
    font-weight: 300;
    color: #ffffff;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.card {
    position: relative;
    display: block;
    text-decoration: none;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    overflow: hidden;
    transform-style: preserve-3d;
    will-change: transform;
}

.card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(
        circle at var(--mouse-x, 50%) var(--mouse-y, 50%), 
        rgba(255, 255, 255, 0.15) 0%, 
        rgba(255, 255, 255, 0.05) 30%,
        transparent 70%
    );
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(255, 255, 255, 0.05) 0%,
        transparent 100%
    );
    opacity: 0;
    transition: opacity 0.4s ease;
    pointer-events: none;
}

.card:hover::before {
    opacity: 1;
}

.card:hover::after {
    opacity: 1;
}

.card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.6),
        0 0 0 1px rgba(255, 255, 255, 0.1) inset;
}

.card:active {
    transform: perspective(1000px) scale(0.98) !important;
}

.card-content {
    position: relative;
    z-index: 1;
}

.card h3 {
    font-size: 1.5rem;
    color: #ffffff;
    margin-bottom: 0.5rem;
    font-weight: 400;
    transform: translateZ(20px);
}

.card p {
    font-size: 0.95rem;
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.6;
    font-weight: 300;
    transform: translateZ(10px);
}

footer {
    text-align: center;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    margin-top: 2rem;
}

footer p {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    font-weight: 300;
    letter-spacing: 0.05em;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2.5rem;
    }
    
    .grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .container {
        padding: 2rem 1rem;
    }
    
    .card:hover {
        transform: perspective(1000px) translateY(-4px) scale(1.02) !important;
    }
}