body {
    font-family: 'Roboto', Arial, sans-serif;
    background: linear-gradient(120deg, #0f2027, #203a43, #2c5364);
    color: #f0f0f0;
    margin: 0;
    padding: 0;
}
header {
    background: #1a2634;
    padding: 1.5rem 0 1rem 0;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
header h1 {
    font-family: 'Orbitron', Arial, sans-serif;
    font-size: 2.5rem;
    margin: 0.5rem 0;
    letter-spacing: 2px;
}
.highlight {
    color: #ffcc00;
    text-shadow: 0 0 8px #ffcc00;
}
nav {
    margin: 1rem 0;
}
nav a {
    color: #ffcc00;
    text-decoration: none;
    margin: 0 1.2rem;
    font-weight: bold;
    transition: color 0.2s;
}
nav a:hover {
    color: #00eaff;
}
main {
    max-width: 800px;
    margin: 2rem auto;
    padding: 1.5rem;
    background: rgba(20, 30, 48, 0.85);
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(0,0,0,0.3);
}
.space-img {
    width: 100%;
    max-width: 400px;
    display: block;
    margin: 1.5rem auto;
    border-radius: 12px;
    box-shadow: 0 2px 16px #000a;
}
ul {
    margin: 1.2rem 0;
    padding-left: 1.5rem;
}
ul li {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
    list-style-type: square;
}
.para1 {
    background: rgba(255, 204, 0, 0.12);
    border-left: 6px solid #ffcc00;
    padding: 1rem;
    border-radius: 8px;
    font-size: 1.15rem;
    margin-bottom: 1.5rem;
}
.para2 {
    background: rgba(0, 234, 255, 0.10);
    border-left: 6px solid #00eaff;
    padding: 1rem;
    border-radius: 8px;
    font-size: 1.13rem;
    margin-bottom: 1.5rem;
    font-style: italic;
}
.para3 {
    background: rgba(255, 0, 128, 0.10);
    border-left: 6px solid #ff0080;
    padding: 1rem;
    border-radius: 8px;
    font-size: 1.12rem;
    margin-bottom: 1.5rem;
    font-family: 'Orbitron', Arial, sans-serif;
}
.special-text {
    color: #00eaff;
    font-weight: bold;
    text-decoration: underline wavy #ffcc00;
}
.bookmark-link {
    display: inline-block;
    margin-top: 1rem;
    color: #ffcc00;
    background: #203a43;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    text-decoration: none;
    transition: background 0.2s, color 0.2s;
}
.bookmark-link:hover {
    background: #ffcc00;
    color: #203a43;
}
button {
    background: #ffcc00;
    color: #203a43;
    border: none;
    padding: 0.7rem 1.5rem;
    border-radius: 8px;
    font-size: 1.1rem;
    font-family: 'Orbitron', Arial, sans-serif;
    cursor: pointer;
    margin: 1rem 0;
    transition: background 0.2s, color 0.2s, transform 0.2s;
}
button:hover {
    background: #00eaff;
    color: #203a43;
    transform: scale(1.05);
}
a {
    color: #00eaff;
    text-decoration: underline;
    transition: color 0.2s;
}
a:hover {
    color: #ffcc00;
}
audio {
    width: 100%;
    margin-top: 1rem;
    filter: drop-shadow(0 2px 8px #00eaff88);
}
footer {
    background: #1a2634;
    color: #ffcc00;
    text-align: center;
    padding: 1rem 0;
    margin-top: 2rem;
    border-top: 2px solid #203a43;
    font-family: 'Orbitron', Arial, sans-serif;
    font-size: 1rem;
    letter-spacing: 1px;
}