* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: "General Sans";
}

body,
html {
    height: 100%;
    width: 100%;
}

#intro-screen {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    background: linear-gradient(135deg, #50ac05, #014118);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 10;
    transition: opacity 0.5s ease;
}

#intro-screen h1 {
    font-size: 5rem;
    font-family: Arial, Helvetica, sans-serif;
    text-transform: uppercase;
    margin-bottom: 1rem;
    color: rgb(8, 8, 180);
    animation: fadeIn 1s ease-in-out;
}

#intro-screen p {
    font-size: 1rem;
    font-weight: 900;
    font-family: 'Courier New', Courier, monospace;
    margin-top: 1rem;
    margin-bottom: 1rem;
    color: #023615;
    animation: fadeIn 1s ease-in-out;
}

#st-btn {
    background: #016d28;
    color: #000;
    text-transform: capitalize;
    border: none;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 900;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 10px;
    box-shadow: 0 5px 15px rgba(4, 163, 62, 0.3);
}

#st-btn:hover {
    background: #038431;
    color: #fff;
    transform: scale(1.05);
}

#level-screen {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    /* background-color: #08fa89; */
    background: linear-gradient(135deg, #6ae406, #04a33e);
    color: rgb(2, 54, 14);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9;
    transition: opacity 0.5s ease;
}

#level-screen h2 {
    font-size: 3rem;
    font-family: Arial, Helvetica, sans-serif;
    margin-bottom: 1rem;
    color: rgb(4, 4, 150);
    animation: fadeIn 1s ease-in-out;
}

.level {
    background: #04a33e;
    color: #000;
    border: none;
    padding: 1rem 2rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 10px;
    box-shadow: 0 5px 15px rgba(4, 163, 62, 0.3);
}

.level:hover {
    background: #038431;
    color: #fff;
    transform: scale(1.05);
}

.level-btns {
    display: flex;
    flex-direction: row;
    gap: 20px;
}

#fullscreen {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    width: 100%;

    background: linear-gradient(155deg, #05c575, #02a03c);
    /* background-color: rgb(90, 180, 90); */

}

#panel {
    height: 80%;
    width: 80%;

    background: linear-gradient(185deg, #fff, #04a33e);
    border-radius: 10px;
    overflow: hidden;

}

#panel-top {
    padding: 0 30%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
    width: 100%;
    background: linear-gradient(185deg, #012b10, #02742c);
    display: flex;
    color: #fff;
}

.elem {
    display: flex;
    align-items: center;
    gap: 18px;
}

#box {
    padding: 8px 20px;
    background-color: #fff;
    border-radius: 5px;
    color: rgb(2, 54, 2);
    font-size: 12px;
    font-weight: 700;
}

#pbtm {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    width: 100%;
    /* background-color: red; */
    height: 100%;
    padding: 20px;
    gap: 10px;

}

.bubble {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgb(5, 77, 5);
    color: #fff;
    border-radius: 50%;
    font-weight: 500;
    animation: float 4s ease-in-out infinite;
    box-shadow: inset 0 0 20px rgba(255, 255, 255, 0.2);
    transition: transform 0.2s ease;
}

.bubble:hover {
    cursor: pointer;
    background-color: red;
    transform: scale(1.1);
}

.game-over-screen {
    text-align: center;
    padding: 20px;
}

.game-over-screen h1 {
    font-size: 3rem;
    font-weight: 500;
    margin-bottom: 10px;
    color: red;
}

.game-over-screen p {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: black;
}

#restart-btn,
#quit-btn {
    background: #04a33e;
    color: white;
    border: none;
    padding: 10px 20px;
    font-size: 1rem;
    margin: 10px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
}

#restart-btn:hover,
#quit-btn:hover {
    background-color: #038431;
}