body, html {
    margin: 0;
    padding: 0;
    font-family: 'Helvetica', sans-serif;
    background: linear-gradient(135deg, #0F1D36, #1A2C4E);
    color: #FFFFFF;
    overflow-x: hidden;
    min-height: 100vh;
}

header {
    background: radial-gradient(circle, rgba(15, 29, 54, 0.9), transparent);
    text-align: center;
    padding: 40px 20px;
}

header h1 {
    font-size: 36px;
    font-weight: bold;
    text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
}

.container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    padding: 20px;
}

.card {
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 15px;
    box-shadow: 4px 4px 10px rgba(0, 0, 0, 0.2);
    margin: 20px;
    padding: 20px;
    width: calc(33% - 40px);
    transition: transform 0.3s ease;
    position: relative;
}

.card:hover {
    transform: scale(1.05);
}

.card img {
    width: 100%;
    height: auto;
    border-radius: 10px;
}

@media (max-width: 1024px) {
    .card {
        width: calc(50% - 40px);
    }
}

@media (max-width: 768px) {
    .card {
        width: 100%;
    }
}

button {
    background: linear-gradient(to bottom, #008CBA, #005F73);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 2px 2px 5px rgba(0, 0, 0, 0.3);
}

button:hover {
    transform: scale(1.1);
}

pre {
    background-color: rgba(0, 0, 0, 0.5);
    color: #FFD700;
    padding: 15px;
    border-radius: 5px;
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background-color: rgba(0, 0, 0, 0.3);
}

th, td {
    padding: 10px;
    text-align: left;
    border: 1px solid #ddd;
}

th {
    background-color: #005F73;
}

.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 5px;
    height: 5px;
    background-color: rgba(255, 255, 255, 0.5);
    animation: particles 5s infinite;
}

@keyframes particles {
    0% { transform: translate(0, 0); }
    100% { transform: translate(100px, -100px); }
}

.notification {
    background-color: #FFD700;
    color: #0F1D36;
    padding: 10px;
    border-radius: 5px;
    text-align: center;
    margin: 20px;
    display: none;
}

@keyframes aurora-move {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}

.aurora {
    background: linear-gradient(270deg, #0F1D36, #1A2C4E, #0F1D36);
    background-size: 600% 600%;
    animation: aurora-move 15s ease infinite;
    padding: 20px;
}