/* style.css */

body {
    margin: 0;
    font-family: 'Segoe UI', sans-serif;
    background: radial-gradient(ellipse at center, #0a0a2a, #000000);
    color: white;
    text-align: center;
}

header {
    background-color: #0d0d35;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Cosmo4U title animation */
header h1 {
    color: #00d4ff;
    margin: 0;
    animation: cosmic-header-glow 2.5s infinite alternate;
}

@keyframes cosmic-header-glow {
    0% {
        text-shadow: 0 0 10px rgba(0, 212, 255, 0.7);
    }

    100% {
        text-shadow: 0 0 20px rgba(0, 212, 255, 1), 0 0 30px rgba(100, 200, 255, 0.8);
    }
}


nav a {
    margin-left: 20px;
    color: white;
    text-decoration: none;
    font-weight: bold;
}

nav a:hover {
    color: #00d4ff;
}

.intro {
    margin-top: 2rem;
}

.install,
.guide {
    margin: 2rem auto;
    max-width: 800px;
    background: #ffffff10;
    padding: 1.5rem;
    border-radius: 10px;
    backdrop-filter: blur(10px);
}

/* Animation for Installation Guide Titles */
.install h3,
.guide h3 {
    animation: text-pop-glow 1.5s infinite alternate;
    margin-bottom: 1.5rem;
}

@keyframes text-pop-glow {
    0% {
        transform: scale(1);
        color: #e0e0e0;
        text-shadow: 0 0 5px rgba(0, 255, 255, 0.5);
    }

    100% {
        transform: scale(1.03);
        color: #00ffff;
        text-shadow: 0 0 15px rgba(0, 255, 255, 0.9), 0 0 25px rgba(0, 200, 255, 0.7);
    }
}


code {
    background-color: #111;
    padding: 0.5rem;
    display: block;
    overflow-x: auto;
    white-space: pre-wrap;
    border-radius: 5px;
    margin-top: 0.5rem;
    color: #0ff;
}

button {
    background-color: #00d4ff;
    color: #000;
    border: none;
    padding: 0.5rem 1rem;
    margin-top: 1rem;
    font-weight: bold;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s ease;
}

button:hover {
    background-color: #00aacc;
}

select {
    margin: 1rem;
    padding: 0.5rem;
    border-radius: 6px;
    border: none;
}

/* Styles for more stars (newly added/modified) */
/* Individual star properties for global stars - adjust for density and paths */
/* Using `--drift-duration` and `--twinkle-delay`, `--drift-delay` */
.global-star:nth-child(1) {
    top: 5%;
    left: 8%;
    width: 2px;
    height: 2px;
    --drift-duration: 20s;
    --twinkle-delay: 0.1s;
    --drift-delay: 0s;
}

.global-star:nth-child(2) {
    top: 15%;
    left: 20%;
    width: 3px;
    height: 3px;
    --drift-duration: 25s;
    --twinkle-delay: 0.5s;
    --drift-delay: 2s;
}

.global-star:nth-child(3) {
    top: 25%;
    left: 32%;
    width: 1.5px;
    height: 1.5px;
    --drift-duration: 18s;
    --twinkle-delay: 0.9s;
    --drift-delay: 4s;
}

.global-star:nth-child(4) {
    top: 35%;
    left: 45%;
    width: 2.5px;
    height: 2.5px;
    --drift-duration: 22s;
    --twinkle-delay: 1.3s;
    --drift-delay: 6s;
}

.global-star:nth-child(5) {
    top: 45%;
    left: 58%;
    width: 3.5px;
    height: 3.5px;
    --drift-duration: 28s;
    --twinkle-delay: 1.7s;
    --drift-delay: 8s;
}

.global-star:nth-child(6) {
    top: 55%;
    left: 70%;
    width: 2px;
    height: 2px;
    --drift-duration: 21s;
    --twinkle-delay: 0.2s;
    --drift-delay: 10s;
}

.global-star:nth-child(7) {
    top: 65%;
    left: 82%;
    width: 3px;
    height: 3px;
    --drift-duration: 26s;
    --twinkle-delay: 0.6s;
    --drift-delay: 12s;
}

.global-star:nth-child(8) {
    top: 75%;
    left: 95%;
    width: 1.8px;
    height: 1.8px;
    --drift-duration: 19s;
    --twinkle-delay: 1s;
    --drift-delay: 14s;
}

.global-star:nth-child(9) {
    top: 85%;
    left: 10%;
    width: 2.8px;
    height: 2.8px;
    --drift-duration: 24s;
    --twinkle-delay: 1.4s;
    --drift-delay: 16s;
}

.global-star:nth-child(10) {
    top: 95%;
    left: 23%;
    width: 4px;
    height: 4px;
    --drift-duration: 30s;
    --twinkle-delay: 1.8s;
    --drift-delay: 18s;
}

/* Additional 50 stars for 3x more effect */
.global-star:nth-child(11) {
    top: 2%;
    left: 50%;
    width: 2.2px;
    height: 2.2px;
    --drift-duration: 23s;
    --twinkle-delay: 0.3s;
    --drift-delay: 1s;
}

.global-star:nth-child(12) {
    top: 12%;
    left: 65%;
    width: 3.2px;
    height: 3.2px;
    --drift-duration: 27s;
    --twinkle-delay: 0.7s;
    --drift-delay: 3s;
}

.global-star:nth-child(13) {
    top: 22%;
    left: 5%;
    width: 1.7px;
    height: 1.7px;
    --drift-duration: 20s;
    --twinkle-delay: 1.1s;
    --drift-delay: 5s;
}

.global-star:nth-child(14) {
    top: 32%;
    left: 15%;
    width: 2.7px;
    height: 2.7px;
    --drift-duration: 24s;
    --twinkle-delay: 1.5s;
    --drift-delay: 7s;
}

.global-star:nth-child(15) {
    top: 42%;
    left: 25%;
    width: 3.7px;
    height: 3.7px;
    --drift-duration: 29s;
    --twinkle-delay: 1.9s;
    --drift-delay: 9s;
}

.global-star:nth-child(16) {
    top: 52%;
    left: 35%;
    width: 2.3px;
    height: 2.3px;
    --drift-duration: 21.5s;
    --twinkle-delay: 0.4s;
    --drift-delay: 11s;
}

.global-star:nth-child(17) {
    top: 62%;
    left: 45%;
    width: 3.3px;
    height: 3.3px;
    --drift-duration: 26.5s;
    --twinkle-delay: 0.8s;
    --drift-delay: 13s;
}

.global-star:nth-child(18) {
    top: 72%;
    left: 55%;
    width: 1.9px;
    height: 1.9px;
    --drift-duration: 19.5s;
    --twinkle-delay: 1.2s;
    --drift-delay: 15s;
}

.global-star:nth-child(19) {
    top: 82%;
    left: 65%;
    width: 2.9px;
    height: 2.9px;
    --drift-duration: 25.5s;
    --twinkle-delay: 1.6s;
    --drift-delay: 17s;
}

.global-star:nth-child(20) {
    top: 92%;
    left: 75%;
    width: 4.5px;
    height: 4.5px;
    --drift-duration: 31s;
    --twinkle-delay: 2s;
    --drift-delay: 19s;
}

.global-star:nth-child(21) {
    top: 8%;
    left: 90%;
    width: 2.1px;
    height: 2.1px;
    --drift-duration: 22s;
    --twinkle-delay: 0.25s;
    --drift-delay: 0.5s;
}

.global-star:nth-child(22) {
    top: 18%;
    left: 3%;
    width: 3.1px;
    height: 3.1px;
    --drift-duration: 27s;
    --twinkle-delay: 0.65s;
    --drift-delay: 2.5s;
}

.global-star:nth-child(23) {
    top: 28%;
    left: 75%;
    width: 1.6px;
    height: 1.6px;
    --drift-duration: 19s;
    --twinkle-delay: 1.05s;
    --drift-delay: 4.5s;
}

.global-star:nth-child(24) {
    top: 38%;
    left: 88%;
    width: 2.6px;
    height: 2.6px;
    --drift-duration: 23s;
    --twinkle-delay: 1.45s;
    --drift-delay: 6.5s;
}

.global-star:nth-child(25) {
    top: 48%;
    left: 12%;
    width: 3.6px;
    height: 3.6px;
    --drift-duration: 29s;
    --twinkle-delay: 1.85s;
    --drift-delay: 8.5s;
}

.global-star:nth-child(26) {
    top: 58%;
    left: 27%;
    width: 2.4px;
    height: 2.4px;
    --drift-duration: 20.5s;
    --twinkle-delay: 0.45s;
    --drift-delay: 10.5s;
}

.global-star:nth-child(27) {
    top: 68%;
    left: 42%;
    width: 3.4px;
    height: 3.4px;
    --drift-duration: 25.5s;
    --twinkle-delay: 0.85s;
    --drift-delay: 12.5s;
}

.global-star:nth-child(28) {
    top: 78%;
    left: 57%;
    width: 1.75px;
    height: 1.75px;
    --drift-duration: 18.5s;
    --twinkle-delay: 1.15s;
    --drift-delay: 14.5s;
}

.global-star:nth-child(29) {
    top: 88%;
    left: 72%;
    width: 2.75px;
    height: 2.75px;
    --drift-duration: 24.5s;
    --twinkle-delay: 1.55s;
    --drift-delay: 16.5s;
}

.global-star:nth-child(30) {
    top: 98%;
    left: 85%;
    width: 4.2px;
    height: 4.2px;
    --drift-duration: 30.5s;
    --twinkle-delay: 1.95s;
    --drift-delay: 18.5s;
}

.global-star:nth-child(31) {
    top: 10%;
    left: 55%;
    width: 2.3px;
    height: 2.3px;
    --drift-duration: 21s;
    --twinkle-delay: 0.15s;
    --drift-delay: 1s;
}

.global-star:nth-child(32) {
    top: 20%;
    left: 70%;
    width: 3.3px;
    height: 3.3px;
    --drift-duration: 26s;
    --twinkle-delay: 0.55s;
    --drift-delay: 3s;
}

.global-star:nth-child(33) {
    top: 30%;
    left: 20%;
    width: 1.8px;
    height: 1.8px;
    --drift-duration: 19s;
    --twinkle-delay: 0.95s;
    --drift-delay: 5s;
}

.global-star:nth-child(34) {
    top: 40%;
    left: 5%;
    width: 2.8px;
    height: 2.8px;
    --drift-duration: 23s;
    --twinkle-delay: 1.35s;
    --drift-delay: 7s;
}

.global-star:nth-child(35) {
    top: 50%;
    left: 80%;
    width: 3.8px;
    height: 3.8px;
    --drift-duration: 28s;
    --twinkle-delay: 1.75s;
    --drift-delay: 9s;
}

.global-star:nth-child(36) {
    top: 60%;
    left: 95%;
    width: 2.15px;
    height: 2.15px;
    --drift-duration: 21.5s;
    --twinkle-delay: 0.35s;
    --drift-delay: 11s;
}

.global-star:nth-child(37) {
    top: 70%;
    left: 15%;
    width: 3.15px;
    height: 3.15px;
    --drift-duration: 26.5s;
    --twinkle-delay: 0.75s;
    --drift-delay: 13s;
}

.global-star:nth-child(38) {
    top: 80%;
    left: 30%;
    width: 1.95px;
    height: 1.95px;
    --drift-duration: 19.5s;
    --twinkle-delay: 1.15s;
    --drift-delay: 15s;
}

.global-star:nth-child(39) {
    top: 90%;
    left: 45%;
    width: 2.95px;
    height: 2.95px;
    --drift-duration: 25.5s;
    --twinkle-delay: 1.55s;
    --drift-delay: 17s;
}

.global-star:nth-child(40) {
    top: 5%;
    left: 75%;
    width: 4.1px;
    height: 4.1px;
    --drift-duration: 31s;
    --twinkle-delay: 1.9s;
    --drift-delay: 19s;
}

.global-star:nth-child(41) {
    top: 15%;
    left: 35%;
    width: 2.5px;
    height: 2.5px;
    --drift-duration: 20s;
    --twinkle-delay: 0.2s;
    --drift-delay: 0s;
}

.global-star:nth-child(42) {
    top: 25%;
    left: 85%;
    width: 3.5px;
    height: 3.5px;
    --drift-duration: 25s;
    --twinkle-delay: 0.6s;
    --drift-delay: 2s;
}

.global-star:nth-child(43) {
    top: 35%;
    left: 10%;
    width: 1.6px;
    height: 1.6px;
    --drift-duration: 18s;
    --twinkle-delay: 1s;
    --drift-delay: 4s;
}

.global-star:nth-child(44) {
    top: 45%;
    left: 60%;
    width: 2.6px;
    height: 2.6px;
    --drift-duration: 22s;
    --twinkle-delay: 1.4s;
    --drift-delay: 6s;
}

.global-star:nth-child(45) {
    top: 55%;
    left: 5%;
    width: 3.6px;
    height: 3.6px;
    --drift-duration: 28s;
    --twinkle-delay: 1.8s;
    --drift-delay: 8s;
}

.global-star:nth-child(46) {
    top: 65%;
    left: 70%;
    width: 2.2px;
    height: 2.2px;
    --drift-duration: 21s;
    --twinkle-delay: 0.3s;
    --drift-delay: 10s;
}

.global-star:nth-child(47) {
    top: 75%;
    left: 40%;
    width: 3.2px;
    height: 3.2px;
    --drift-duration: 26s;
    --twinkle-delay: 0.7s;
    --drift-delay: 12s;
}

.global-star:nth-child(48) {
    top: 85%;
    left: 90%;
    width: 1.7px;
    height: 1.7px;
    --drift-duration: 19s;
    --twinkle-delay: 1.1s;
    --drift-delay: 14s;
}

.global-star:nth-child(49) {
    top: 95%;
    left: 15%;
    width: 2.7px;
    height: 2.7px;
    --drift-duration: 24s;
    --twinkle-delay: 1.5s;
    --drift-delay: 16s;
}

.global-star:nth-child(50) {
    top: 2%;
    left: 25%;
    width: 4.3px;
    height: 4.3px;
    --drift-duration: 30s;
    --twinkle-delay: 1.9s;
    --drift-delay: 18s;
}

.global-star:nth-child(51) {
    top: 12%;
    left: 40%;
    width: 2.0px;
    height: 2.0px;
    --drift-duration: 20.5s;
    --twinkle-delay: 0.25s;
    --drift-delay: 0.5s;
}

.global-star:nth-child(52) {
    top: 22%;
    left: 55%;
    width: 3.0px;
    height: 3.0px;
    --drift-duration: 25.5s;
    --twinkle-delay: 0.65s;
    --drift-delay: 2.5s;
}

.global-star:nth-child(53) {
    top: 32%;
    left: 70%;
    width: 1.9px;
    height: 1.9px;
    --drift-duration: 18.5s;
    --twinkle-delay: 1.05s;
    --drift-delay: 4.5s;
}

.global-star:nth-child(54) {
    top: 42%;
    left: 85%;
    width: 2.9px;
    height: 2.9px;
    --drift-duration: 23.5s;
    --twinkle-delay: 1.45s;
    --drift-delay: 6.5s;
}

.global-star:nth-child(55) {
    top: 52%;
    left: 0%;
    width: 3.9px;
    height: 3.9px;
    --drift-duration: 29.5s;
    --twinkle-delay: 1.85s;
    --drift-delay: 8.5s;
}

.global-star:nth-child(56) {
    top: 62%;
    left: 10%;
    width: 2.45px;
    height: 2.45px;
    --drift-duration: 21.7s;
    --twinkle-delay: 0.45s;
    --drift-delay: 10.5s;
}

.global-star:nth-child(57) {
    top: 72%;
    left: 25%;
    width: 3.45px;
    height: 3.45px;
    --drift-duration: 26.7s;
    --twinkle-delay: 0.85s;
    --drift-delay: 12.5s;
}

.global-star:nth-child(58) {
    top: 82%;
    left: 40%;
    width: 1.85px;
    height: 1.85px;
    --drift-duration: 19.7s;
    --twinkle-delay: 1.25s;
    --drift-delay: 14.5s;
}

.global-star:nth-child(59) {
    top: 92%;
    left: 55%;
    width: 2.85px;
    height: 2.85px;
    --drift-duration: 24.7s;
    --twinkle-delay: 1.65s;
    --drift-delay: 16.5s;
}

.global-star:nth-child(60) {
    top: 98%;
    left: 65%;
    width: 4.6px;
    height: 4.6px;
    --drift-duration: 31.5s;
    --twinkle-delay: 2.05s;
    --drift-delay: 18.5s;
}