/* 内容 */
#main{
    /* 大小 */
    width: 1100px;/*1062px*/
    height: 435px;

    /* 定位 */
    position: fixed;

    /* 位置 */
    top: 44%;
    margin-top: -197px;
    left: 50%;
    margin-left: -550px;

    /* 颜色 */
    background-color: transparent;

    /* 透明度 */
    opacity: 1;  

    /* flex布局（父元素） */
    display: flex;
    flex-direction: row;
}

#footer{
    width: 100%;
    position: fixed;
    left: 0px;
    bottom: 10px;
    text-align: center;
    font-size: 13px;
    color: #7a7a7a;
    letter-spacing: 0.5px;
    z-index: 5;
    user-select: none;
    pointer-events: none;
}

#logo,
#navigationBar,
#topMenu,
#footer,
#timerApp{
    transition: opacity 0.3s ease, transform 0.3s ease;
}

#timerApp{
    transform-origin: center center;
}

body.focus-mode #logo,
body.focus-mode #navigationBar,
body.focus-mode #topMenu,
body.focus-mode #footer{
    opacity: 0;
    pointer-events: none;
    transform: translateY(-6px);
}

body.focus-mode #logo,
body.focus-mode #navigationBar{
    display: none;
}

body.focus-mode #main{
    width: 100%;
    left: 0;
    margin-left: 0;
    top: 50%;
    margin-top: 0;
    justify-content: center;
    transform: translateY(-50%);
}

body.focus-mode #timerApp{
    transform: scale(1.75);
    box-shadow: 0px 12px 30px 0px rgba(0, 0, 0, 0.25);
}

#quitModal{
    position: fixed;
    inset: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

#quitModal.is-visible{
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

#quitModal .overlay{
    position: absolute;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.35);
}

#quitModal .panel{
    position: relative;
    width: min(360px, 90vw);
    border-radius: 16px;
    padding: 20px 22px;
    background-color: #ffffff;
    box-shadow: 0px 16px 40px rgba(0, 0, 0, 0.25);
    color: #3f3f3f;
}

#quitModal .title{
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 6px;
}

#quitModal .message{
    font-size: 14px;
    color: #6b6b6b;
    margin-bottom: 16px;
    line-height: 1.5;
}

#quitModal .buttons{
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

#quitModal .buttons button{
    border: none;
    border-radius: 10px;
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}

#quitModal .buttons .cancelButton{
    background-color: #efefef;
    color: #4a4a4a;
}

#quitModal .buttons .confirmButton{
    background-color: #ffcd2f;
    color: #4a463c;
}