/* Copyright HollowSpaceDev */

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

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background: linear-gradient(rgb(1,1,1), rgb(16, 9, 61));
    color: #fff;
    padding: 2rem 1rem 1rem 1rem;
    text-align: center;
    box-shadow: 0 2px 8px rgba(56, 142, 60, 0.1);
}

    header h1 {
        font-size: 2.5rem;
        margin-bottom: 0.5rem;
        letter-spacing: 1px;
        color: #fff;
        background: linear-gradient(0deg, #fff 0%, #fff 40%, rgb(16, 9, 61) 90%, rgb(16, 9, 61) 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        color: transparent;
    }

main {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    position: relative;
    background: radial-gradient(circle at 50% 50%, #000 0%, #0a0a0a 80%, #111 100%);
  
}

    main h2 {
        font-size: 3rem;
        margin-bottom: 2.5rem; /* More space below heading */
        color: #fff;
        text-align: center;
        text-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
    }

    main a {
        margin-top: 2.5rem; /* Let h2's margin-bottom handle spacing */
        padding: 0.5rem 1.5rem;
        font-size: 2rem;
        color: #fff;
        background: linear-gradient(45deg, #6a82fb, #fc5c7d);
        border-radius: 25px;
        text-decoration: none;
        box-shadow: 0 4px 15px rgba(111, 66, 193, 0.3);
        transition: background 0.3s ease, box-shadow 0.3s ease;
        text-align: center;
        display: inline-block;
    }
.center-column {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

footer {
    background: linear-gradient(rgb(16, 9, 61), rgb(1,1,1));
    color: #fff;
    text-align: center;
    padding: 1rem 0;
    font-size: 1rem;
    letter-spacing: 0.5px;
    animation: footerFontColorCycle 10s linear infinite;
}

.planet-btn {
    position: absolute;
    background: none;
    border: none;
    padding: 0;
    border-radius: 50%;
    cursor: pointer;
    outline: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: min(8vw, 8vh);
    height: min(8vw, 8vh);
    z-index: 2;
}

    .planet-btn canvas {
        width: 100%;
        height: 100%;
        display: block;
        border-radius: 50%;
        background: transparent;
    }

#planetButton1 {
    left: 23%;
    top: 23%;
    transform: translate(-50%, -50%);
    animation: planetFloat1 10s ease-in-out infinite;
    box-shadow: 0 0 40px 10px #6a82fb88; /* blue glow (current) */
}

#planetButton2 {
    left: 70%;
    top: 33%;
    transform: translate(-50%, -50%);
    animation: planetFloat2 10s ease-in-out infinite;
    box-shadow: 0 0 40px 10px #4caf5088;
}

#planetButton3 {
    left: 50%;
    top: 80%;
    transform: translate(-50%, -50%);
    animation: planetFloat3 10s ease-in-out infinite;
    box-shadow: 0 0 40px 10px #e5393588;
}

/* -----------------Responsive Design------------------- */
@media (max-width: 900px) {
    header {
        padding: 1rem 0.5rem 0.5rem 0.5rem;
    }
    header h1 {
        font-size: 1.5rem;
    }
    footer {
        padding: 0.75rem 0;
        font-size: 0.75rem;
    }
    main h2 {
        font-size: 1.3rem;
        margin-bottom: 1rem;
    }

    main a {
        font-size: 1rem;
        padding: 0.4rem 1rem;
    }
    .planet-btn {
        width: min(8vw, 8vh);
        height: min(8vw, 8vh);
    }
}
@media (max-width: 600px) and (orientation: landscape) {
    header {
        padding: 0.25rem 0.25rem 0.25rem 0.25rem;
    }
    header h1 {
        font-size: 1.0rem;
    }
    footer {
        padding: 0.25rem 0;
        font-size: 0.5rem;
    }
    main h2 {
        font-size: 0.9rem;
        margin-bottom: 0.75rem;
    }

    main a {
        font-size: 0.8rem;
        padding: 0.3rem 0.75rem;
    }
    .planet-btn {
        width: min(8vw, 8vh);
        height: min(8vw, 8vh);
    }
}


/* --------------- Starfield --------------------- */
.starfield {
    pointer-events: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.star {
    position: absolute;
    left: 50%;
    top: 50%;
    width: 1px;
    height: 1px;
    background: white;
    border-radius: 50%;
    opacity: 0.8;
    box-shadow: 0 0 3px 1px #fff, 0 0 6px 2px #b2fefa;
    transform: translate(-50%, -50%) scale(0.3);
    /* Animation will be set inline for each star */
}

/*  -----------------------keyframes*-------------------------  */
@keyframes twinkle {
    0%, 100% {
        filter: brightness(1);
    }

    50% {
        filter: brightness(2.5);
    }
}

@keyframes footerFontColorCycle {
    0% {
        color: rgb(206, 202, 230);
    }

    50% {
        color: rgb(116, 107, 174);
    }

    100% {
        color: rgb(206, 202, 230);
    }
}

@keyframes planetFloat1 {
    0% {
        left: 23%;
        top: 23%;
        transform: translate(-50%, -50%) scale(1.5);
    }

    50% {
        left: 40%;
        top: 40%;
        transform: translate(-50%, -50%) scale(0.9);
    }

    100% {
        left: 23%;
        top: 23%;
        transform: translate(-50%, -50%) scale(1.5);
    }
}

@keyframes planetFloat2 {
    0% {
        left: 60%;
        top: 44%;
        transform: translate(-50%, -50%) scale(0.8);
    }

    50% {
        left: 70%;
        top: 33%;
        transform: translate(-50%, -50%) scale(1.4);
    }

    100% {
        left: 60%;
        top: 44%;
        transform: translate(-50%, -50%) scale(0.8);
    }
}

@keyframes planetFloat3 {
    0% {
        left: 50%;
        top: 70%;
        transform: translate(-50%, -50%) scale(1.0);
    }

    25% {
        left: 50%;
        top: 80%;
        transform: translate(-50%, -50%) scale(1.3);
    }

    50% {
        left: 50%;
        top: 60%;
        transform: translate(-50%, -50%) scale(0.65);
    }

    75% {
        left: 50%;
        top: 80%;
        transform: translate(-50%, -50%) scale(1.3);
    }

    100% {
        left: 50%;
        top: 70%;
        transform: translate(-50%, -50%) scale(1.0);
    }
}