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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 100%);
    color: white;
    min-height: 100vh;
}

.header {
    background: rgba(0, 0, 0, 0.8);
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.logo {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid #3b82f6;
}

.header h1 {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(45deg, #3b82f6, #60a5fa);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.card {
    background: rgba(0, 0, 0, 0.7);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6, #1e40af);
}

.card:hover {
    transform: translateY(-10px);
    border-color: #3b82f6;
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.3);
}

.card-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: #3b82f6;
}

.card h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: #f8fafc;
}

.card p {
    color: #cbd5e1;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.card-button {
    background: linear-gradient(45deg, #3b82f6, #1e40af);
    color: white;
    border: none;
    padding: 0.8rem 2rem;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-button:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.4);
}

.footer {
    text-align: center;
    padding: 2rem;
    color: #94a3b8;
    margin-top: 3rem;
}

@media (max-width: 768px) {
    .header {
        padding: 1rem;
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .header h1 {
        font-size: 1.5rem;
    }

    .container {
        padding: 0 1rem;
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .card {
        padding: 1.5rem;
    }
}