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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 50%, #f093fb 100%);
    min-height: 100vh;
    color: #1e293b;
    line-height: 1.6;
    overflow-x: hidden;
}

header {
    text-align: center;
    padding: 40px 20px 20px;
    position: relative;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: rgba(255, 255, 255, 0.3);
}

header h2 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto 60px;
    padding: 0 20px;
}

.card {
    display: block;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 32px 28px;
    text-decoration: none;
    color: inherit;
    box-shadow: 
        0 20px 40px rgba(0, 0, 0, 0.1),
        0 0 0 1px rgba(255, 255, 255, 0.2);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #a78bfa, #3b82f6, #10b981, #f59e0b);
    border-radius: 24px 24px 0 0;
}

.card:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 
        0 32px 64px rgba(0, 0, 0, 0.15),
        0 0 0 1px rgba(255, 255, 255, 0.3);
}

.card:active {
    transform: translateY(-8px) scale(1.01);
}

.icon {
    font-size: 3.5rem;
    display: block;
    margin-bottom: 20px;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: #1e293b;
}

.card p {
    color: #64748b;
    font-size: 0.95rem;
    margin-bottom: 24px;
    line-height: 1.6;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4);
}

.footer {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding: 40px 20px;
    text-align: center;
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
}

.brand {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.tagline {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
    margin-bottom: 24px;
    font-weight: 500;
}

.links {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 24px;
    flex-wrap: wrap;
}

.links a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.links a:hover {
    color: white;
    transform: translateY(-2px);
}

.copyright {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.85rem;
}

/* Animations */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.card:nth-child(1) { animation: float 6s ease-in-out infinite; }
.card:nth-child(2) { animation: float 6s ease-in-out infinite 1s; }
.card:nth-child(3) { animation: float 6s ease-in-out infinite 2s; }
.card:nth-child(4) { animation: float 6s ease-in-out infinite 3s; }

/* Responsive */
@media (max-width: 768px) {
    .grid {
        grid-template-columns: 1fr;
        gap: 20px;
        padding: 0 16px;
    }
    
    header {
        padding: 32px 16px 16px;
    }
    
    .icon {
        font-size: 3rem;
    }
    
    .links {
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .card {
        padding: 28px 24px;
    }
    
    header h2 {
        font-size: 2.25rem;
    }
}