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

body, html {
    width: 100%;
    height: 100%;
    overflow: hidden;
    background-color: transparent;
}

/* VIDEO */
#bg-video {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    object-fit: cover;
    z-index: -2;
    background-color: black;
    filter: brightness(0.5);
}

/* CANVAS */
#canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    background: transparent !important;
}

/* MESAJ */
#message-container {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 100;
    color: white;
    font-family: 'Georgia', serif;
    font-size: 2rem;
    text-align: center;
    pointer-events: none;
    opacity: 0;
    transition: opacity 1s ease;
    text-shadow: 0 0 15px white;
    width: 80%;
}

/* OVERLAY */
#overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 999;
    background: radial-gradient(circle, #000428 0%, #000 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    transition: opacity 1s;
}

button {
    padding: 15px 40px;
    font-size: 1.2rem;
    cursor: pointer;
    background: transparent;
    color: white;
    border: 2px solid white;
    border-radius: 50px;
    backdrop-filter: blur(5px);
}

/* ALT ORTA BUTON */
#bottom-button {
    position: fixed;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 500;
    opacity: 0;
    transition: opacity 1s ease;
}

/* 🔥 DÜZELTİLMİŞ BUTON */
#bottom-button a {

    display: inline-block;

    padding: 14px 28px;
    font-size: clamp(14px, 4vw, 18px);

    text-align: center;
    white-space: nowrap;

    max-width: 90vw;
    width: fit-content;

    text-decoration: none;
    color: white;
    border: 2px solid white;
    border-radius: 50px;

    backdrop-filter: blur(10px);
    background: rgba(255,255,255,0.05);

    transition: all 0.3s ease;
}

#bottom-button a:hover {
    background: white;
    color: black;
    transform: scale(1.05);
}

/* 🔥 MOBİL OPTİMİZASYON */
@media (max-width: 600px){

    #bottom-button{
        bottom: 60px;
    }

    #bottom-button a{
        padding: 12px 22px;
        font-size: 15px;
        max-width: 85vw;
        white-space: normal; /* taşarsa alt satıra geçsin */
    }

}