:root {
    --primary: #00f2ff;
    --secondary: #bc00ff;
    --bg-dark: #0a0a0c;
    --card-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-main: #e0e0e0;
    --text-dim: #a0a0a0;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
    min-height: 100vh;
}

h1, h2, h3, .tagline {
    font-family: 'Orbitron', sans-serif;
}

#app {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem;
    min-height: 100vh;
}

.circuit-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 50% 50%, rgba(188, 0, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(0, 242, 255, 0.1) 0%, transparent 40%);
    z-index: -1;
    overflow: hidden;
}

.circuit-bg::after {
    content: "";
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background-image: url('https://www.transparenttextures.com/patterns/carbon-fibre.png');
    opacity: 0.1;
    animation: move-bg 60s linear infinite;
}

@keyframes move-bg {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

header {
    text-align: center;
    margin-bottom: 4rem;
    animation: fadeInDown 1s ease-out;
}

.logo-container {
    perspective: 1000px;
}

#main-logo {
    max-width: 400px;
    height: auto;
    filter: drop-shadow(0 0 20px var(--primary));
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

#main-logo:hover {
    transform: scale(1.05) rotateX(5deg) rotateY(5deg);
}

.tagline {
    margin-top: 1rem;
    font-size: 1.2rem;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    text-shadow: 0 0 10px var(--primary);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    width: 100%;
    max-width: 1200px;
    padding: 0 1rem;
}

.card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 2.5rem 2rem;
    text-decoration: none;
    color: inherit;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: "";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.05),
        transparent
    );
    transition: 0.5s;
}

.card:hover::before {
    left: 100%;
}

.card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 10px 30px rgba(0, 242, 255, 0.1);
}

.card-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    transition: transform 0.3s ease;
}

.card:hover .card-icon {
    transform: scale(1.2);
}

.card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.8rem;
    color: var(--primary);
}

.card p {
    color: var(--text-dim);
    line-height: 1.6;
}

footer {
    margin-top: auto;
    padding: 4rem 2rem 2rem;
    color: var(--text-dim);
    font-size: 0.9rem;
    text-align: center;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@media (max-width: 768px) {
    #main-logo {
        max-width: 300px;
    }
    .tagline {
        font-size: 1rem;
    }
}