body {
    margin: 0;
    min-height: 100vh;
    background: linear-gradient(180deg, #191970 0%, #050515 100%);
    color: white;
    font-family: 'Source Code Pro', monospace;
    display: flex;
}

/* Star Background */
#stars, #stars2, #stars3 {
    position: fixed;
    top: 0;
    left: 0;
    width: 1px;
    height: 1px;
    background: transparent;
    z-index: -1;
}
#stars { box-shadow: 200px 300px #FFF, 800px 100px #FFF, 1400px 600px #FFF; animation: twinkle 4s infinite; }
#stars2 { width: 2px; height: 2px; box-shadow: 400px 500px #FFF, 1200px 100px #FFF; animation: twinkle 6s infinite; }
@keyframes twinkle { 0%, 100% { opacity: 1; } 50% { opacity: 0.3; } }

/* Sidebar */
.sidebar {
    width: 250px;
    height: 100vh;
    position: fixed;
    background: rgba(0, 0, 0, 0.85);
    border-right: 2px solid #ff7e5f;
    padding: 20px;
    box-sizing: border-box;
    z-index: 100;
}
.sidebar h2 { color: #ff7e5f; border-bottom: 1px solid #333; padding-bottom: 10px; }
.sidebar a {
    display: block;
    color: white;
    text-decoration: none;
    padding: 15px 10px;
    transition: 0.3s;
}
.sidebar a:hover { background: rgba(255, 126, 95, 0.2); color: #ff7e5f; padding-left: 20px; }

/* Content Positioning */
.main-content {
    margin-left: 250px;
    width: calc(100% - 250px);
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
}

/* Info Sections */
.info-section {
    display: none;
    background: rgba(0, 0, 0, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 40px;
    border-radius: 15px;
    width: 100%;
    max-width: 700px;
    backdrop-filter: blur(10px);
    text-align: center;
}

.info-section:target { display: block; }
#default { display: block; }
:target ~ #default, .main-content:has(:target:not(#default)) #default { display: none; }

/* Video Styling */
.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
    margin-top: 20px;
    border: 1px solid #ff7e5f;
    border-radius: 8px;
}
.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

h1 { color: #ff7e5f; }
