@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+TC:wght@400;700&display=swap');

* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
html,body {
    overflow-x: hidden;
}
body {
    min-height: 100svh;
    font-family: "Noto Sans JP", Helvetica, Arial, serif;
    background-color: #f3efea;
    background:url('https://lndatatech.github.io/data-xmas-quiz/assets/bg_h.jpg');
    background-size:contain;
    background-position: center;
    background-repeat: repeat-x;
}

#snowfall-canvas,
.snowflakes {
    position: absolute; /*  設定 .snowflakes 為絕對定位 */
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden; /*  隱藏超出容器的雪花 */
    z-index: 10; /*  確保雪花在背景圖層上方 */
    pointer-events: none; /*  讓雪花不會影響滑鼠事件 */
  }
  
  .snowflake {
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: white;
    border-radius: 50%;
    opacity: 0.8;
    animation: snowfall 10s linear infinite; /*  套用 snowfall 動畫 */
  }
  
  @keyframes snowfall {
    0% {
      transform: translate(0, -10%);
    }
    100% {
      transform: translate(50%, 100%);
    }
  }

.wrap {
    background:url('https://lndatatech.github.io/data-xmas-quiz/assets/bg_h.jpg');
    background-size:cover;
    background-color: #f3efea;
    background-position: center;
    height: 100%;
    width: 100%;
    max-width: 100vw;
    z-index: 12;
}

.wrap h2 {
    font-size: 24px;
    margin: 1rem 1.5rem !important;
}

.wrap hr {
    width: 80%;
    margin: 0 auto;
}

h1 {
    font-size: 36px;
}

section {
    position: absolute;
    height: 100%;
    width: 100%;
    transition: opacity 1s;
}

.items {
    display: flex;
    height: 100%;
    max-height: 100%;
    width: 100%;
    overflow-x: hidden;
    overflow-y: hidden;
}

.items div {
    width: 100%;
    height: 100%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: start;
    margin-top: 10%;
    flex-direction: column;
    font-size: 1.5em;
    scroll-snap-align: center;
    padding: 1rem;
    color: #fff;
}

.items div button.selected {
    background: #b04147;
    color: #fff;
}

#test .arrow {
    position: absolute;
    top: 50%;
    left: 1em;
    transform: translate(-50%, -50%);
    outline: transparent;
    border: none;
    background: transparent;
    font-size: 3em;
    transition: transform 0.3s;
    cursor: pointer;
}

#test .arrow:last-child {
    left: unset;
    right: 1em;
}

#test .arrow:last-child:hover {
    transform: translate(-20%, -50%);
}

#test .arrow:first-child:hover {
    transform: translate(-80%, -50%);
}

#test,
#today {
    opacity: 0;
    pointer-events: none;
}

#start {
    display: flex;
    justify-content: center;
    text-align: center;
    align-items: center;
    flex-direction: column;
    gap: 1.5rem;
}

#start button {
    padding: .4em 2em;
    border: none;
    outline: none;
    background: #fffef971;
    font-size: 2rem;
    font-weight: 900;
    cursor: pointer;
    margin-top: 0;
    transition: all 0.5s ease-in-out;
    -webkit-backdrop-filter: blur(2px);
    backdrop-filter: blur(2px);
    border-radius: 1em;
    box-shadow: 0 0 12px #00000030;
    display: block;
    color: #b04147;
    text-decoration: none;
    text-align: center;
    font-family: "Noto Sans JP", Helvetica, Arial, serif;
    max-width: 100%;
}

.items div button,
input[type="text"],
#download-button {
    padding: .4em 2em;
    border: none;
    outline: none;
    background: #fffef971;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    -webkit-backdrop-filter: blur(2px);
    backdrop-filter: blur(2px);
    margin-top: 1em;
    transition: all 0.5s ease-in-out;
    border-radius: 1em;
    box-shadow: 0 0 10px #00000023;
    display: block;
    color: #b04147;
    text-decoration: none;
    text-align: center;
    font-family: "Noto Sans JP", Helvetica, Arial, serif;
    max-width: 100%;
}

button.gift {
    padding: .4em 2em;
    border: none;
    outline: none;
    background:#4caf50;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    margin: 1em auto !important;
    transition: all 0.5s ease-in-out;
    border-radius: 1em;
    box-shadow: 0 0 10px #00000023;
    display: block;
    align-self: center;
    align-content: center;
    align-items: center;
    color: #fff;
    text-decoration: none;
    text-align: center;
    font-family: "Noto Sans JP", Helvetica, Arial, serif;
    width: 90%;
    max-width: 400px !important;
}

button.gift a {
    color: #fff;
    text-decoration: none;
}

#start button:hover {
    transform: scale(120%);
    color: #fefefe;
    background-color: #4caf50;
}

.items div button:hover,
#download-button:hover {
    transform: translateY(3px);
    background-color: #ffffffb8;
}

#start .title {
    position: relative;
}



#start .title img {
    width: 20em;
}

#start img {
    width: 23em;
}

.too+section#today,
.started~section#test {
    opacity: 1;
    pointer-events: all;
    display: block;
    background: url('https://lndatatech.github.io/data-xmas-quiz/assets/bg_c_h.jpg');
    background-size: contain;
    background-repeat: repeat-x;
    background-position: center;
    max-width: 100vw;
}

.started,
.too {
    opacity: 0;
    pointer-events: none;
}

footer {
    position: absolute;
    bottom: 2em;
    left: 0;
    width: 100%;
    text-align: center;
    font-size: 1.5rem;
}

footer a,
#download-text {
    color: #535353;
    transition: all 0.6s ease-in;
}

footer {
    font-weight: 400;
    font-size: 12px;
}

footer a:hover {
    color: #34b7af;
}

a.credit {
    font-size: 12px;
    margin-top: 2em;
    border-top: #00000023 solid 1px;
    width: 100%;
    text-align: center;
    color: #535353;
    text-decoration: none;
    display: block;
}

#download-text {
    font-size: 2rem;
}

#download-text.small {
    font-size: 1rem;
}

#download-text {
    text-align: center;
    margin-top: 1em;
}

.mobile {
    display: none;
}

.items .title  {
    position: absolute;
    z-index: 11;
    background-color: #4caf50;
    height: 4.5rem;
    top: 0;
    left: 0;
    width: 100%;
    text-align: center;
    font-size: .5rem;
}
.current{
    position: fixed;
    bottom: 1.5rem;
    left: 0;
    width: 100%;
    text-align: center;
    font-size: 1rem;
    height: unset;
}
.items .title h2 {
    font-size: 1.6rem;
    color: #ab3d43;
    width: 80%;
    height: 1rem;
    margin:1rem auto;
}

.items .title span {
    position: relative;
    top: 0.5rem;
    width: 45%;
    z-index: 11;
    height: 0.5rem;
    line-height: 0.5rem;
}

.items .title img {
    height: 2rem;
}

.items h4 {
    text-align: center;
    max-width: 600px;
}


#test .arrow[disabled=""] {
    color: #00000023;
    cursor: not-allowed;
}

#result {
    display: none; /*  初始狀態為隱藏 */
    flex-direction: column; /*  垂直排列 */
    align-items: center; /*  水平置中 */
    justify-content: center; /*  垂直置中 */
}

/*  音樂控制按鈕樣式 */
#music-toggle-button {
    position: absolute; /*  設定按鈕為絕對定位 */
    transition: all 0.4s ease-in;
    color: #fefefea2;
    top: 12px; /*  調整按鈕的垂直位置 */
    right: 12px; /*  調整按鈕的水平位置 */
    background-color: transparent; /*  設定背景為透明 */
    border: none; /*  移除邊框 */
    font-size: 20px; /*  調整 icon 大小 */
    cursor: pointer; /*  設定滑鼠游標樣式 */
  }

  #music-toggle-button:hover {
    color: #fefefe;
  }

@keyframes shine {
    0% {
        opacity: 1;
    }

    100% {
        opacity: .5;
    }
}

#image {
    max-height: 100%;
    width: auto;
    max-width: 100vw;
    margin: 0 auto 1rem;
    display: block;
}


.container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 0 0 1rem;
    background-size: cover;
    display: none;
}

h2 {
    font-size: 2rem;
    margin: 1.5em;
    color: #fefefe;
}

#feedback {
    border: none;
    outline: transparent;
    background: transparent;
    font-family: "Noto Sans JP", Helvetica, Arial, serif;
    font-size: 1.5rem;
    color: #000;
    cursor: pointer;
    text-decoration: none;
}

#feedback:hover {
    text-decoration: underline;
}

#output {
    display: block;
    margin: .8em 0 .5em;
}

/********** Range Input Styles **********/
/*Range Reset*/
input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    background: transparent;
    cursor: pointer;
    width: 25rem;
    display: block;
}

/* Removes default focus */
input[type="range"]:focus {
    outline: none;
}

/***** Chrome, Safari, Opera and Edge Chromium styles *****/
/* slider track */
input[type="range"]::-webkit-slider-runnable-track {
    background-color: #404040;
    height: 0.25rem;
}

/* slider thumb */
input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    /* Override default look */
    appearance: none;
    margin-top: -12px;
    /* Centers thumb on the track */
    height: 2rem;
    width: 1rem;
}

input[type="range"]:focus::-webkit-slider-thumb {
    border: 1px solid #404040;
    outline: 3px solid #404040;
    outline-offset: 0.125rem;
}

/******** Firefox styles ********/
/* slider track */
input[type="range"]::-moz-range-track {
    background-color: #404040;
    height: 0.25rem;
}

/* slider thumb */
input[type="range"]::-moz-range-thumb {
    border: none;
    /*Removes extra border that FF applies*/
    border-radius: 0;
    /*Removes default border-radius that FF applies*/

    /*custom styles*/
    background-color: #000000;
    height: 2rem;
    width: .25rem;
}

input[type="range"]:focus::-moz-range-thumb {
    outline: 3px solid #404040;
    outline-offset: 0.125rem;
}

#today {
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.too+section#today {
    display: flex;
}

.items>div button:last-child {
    margin-top: 1em;
}

/*  警語樣式 */
.disclaimer {
    font-size: 0.8em;
    text-align: center;
    color: #777;
    margin: 10px 10%;
}

/*  按鈕樣式 */
.buttons {
    margin: 15px 10% 10px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
}

.buttons button {
    margin: 0 8px;
    padding: 6px 12px;
    font-size: 1em;
    max-width: 130px;
    cursor: pointer;
    transition: all 0.2s ease-in !important;
}

.buttons button:hover {
    background-color: #535353;
    color: #fff;
    transition: all 0.2s ease-in;
}

/*  關於我們區塊樣式 */
.about-us {
    margin: 20px 10%;
    text-align: center;
}

.lndatalogo {
    width: 30%;
    max-width: 160px;
    min-width: 96px;
    margin: 1rem auto;
}

.about-us p,
.buttons p {
    font-size: 12px;
    text-align: left;
    color: #3e3a39;
    transition: all 0.5s ease-in;
    width: 90%;
    max-width: 800px;
    margin: 0 auto;
}

.about-us h4,
.about-us a,
.recommended-reading a {
    font-size: 14px;
    color: #3e3a39;
    transition: all 0.5s ease-in;
}

.recommended-reading h3,
.recommended-reading ul {
    width: 90%;
    max-width: 800px;
    margin: 0 auto;
}

.about-us a:hover,
.recommended-reading a:hover {
    color: #34b7af;
    transition: all 0.5s ease-in;
}

/*  推薦閱讀區塊樣式 */
.recommended-reading {
    margin: 20px 10%;
    padding-bottom: 40px;
}

.recommended-reading ul {
    list-style: none;
    padding: 0;
}

.recommended-reading li {
    margin-bottom: 10px;
}

/*  社群分享彈出視窗樣式 */
.modal {
    display: none; /*  預設隱藏 */
    position: fixed; /*  固定位置 */
    z-index: 1; /*  置於頂層 */
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto; /*  啟用滾動條 */
    background-color: rgba(0, 0, 0, 0.4); /*  半透明黑色背景 */
}

.modal-content {
    background-color: #fefefe;
    box-shadow:0 0 18px #00000085;
    margin: 15% auto; /*  上下置中 */
    padding: 20px;
    border: 1px solid #888;
    width: 80%;
    max-width: 400px;
}

.modal-content button {
    margin: 1rem 0 !important;
    font-size: 0.8em;
}

.close-button {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.4s ease;
    transform: translateY(-15%);
}

.close-button:hover {
    color: #404040;
}

.social-share-button {
    display: block;
    margin: 10px 0;
    padding: 10px 20px;
    background-color: #4caf50;
    color: white;
    text-decoration: none;
    transition: all 0.5s ease-in-out;
}

.social-share-button:hover {
    display: block;
    margin: 10px 0;
    padding: 10px 20px;
    background-color: #ea0404;
    color: white;
    text-decoration: none;
    transition: all 0.5s ease-in-out;
}

/*  icon 樣式 */
.buttons i, .social-share-button i {
    margin-right: 5px; /*  調整 icon 和文字的間距 */
}


@keyframes rotateLeft {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(-45deg);
    }
}

@keyframes rotateRight {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(45deg);
    }
}

@keyframes hue-rotate {
    0% {
        filter: hue-rotate(0deg);
    }

    100% {
        filter: hue-rotate(360deg);
    }
}

@keyframes scale {
    from {
        transform: scaleY(1);
    }

    to {
        transform: scaleY(2);
    }
}

@keyframes horizontal {
    from {
        transform: translateX(0);
    }

    to {
        transform: translateX(calc(100vw - 100%));
    }
}

@keyframes vertical {
    from {
        transform: translateY(0);
    }

    to {
        transform: translateY(calc(100vh - 100%));
    }
}

@media (max-aspect-ratio: 4/3) {
    .arrow {
        display: none;
    }
    .mobile {
        display:inline;
    }

    body {
        background-color: #f3efea;
        background:url('https://lndatatech.github.io/data-xmas-quiz/assets/bg.jpg');
        background-size:cover;
        background-position: center;
        background-repeat:space;
    }
    
    .wrap {
        background:url('https://lndatatech.github.io/data-xmas-quiz/assets/bg_c.jpg');
        background-size: cover;
        max-height: 100%;
        width: 100%;
        background-repeat: space;
        z-index: 12;
    }

    #image {
        max-width: 90%;
    }

    .too+section#today,
    .started~section#test {
        background: url('https://lndatatech.github.io/data-xmas-quiz/assets/bg_c.jpg');
        background-size: cover;
        background-position: center;
    }

    .items div button,
    input[type="text"],
    #download-button {
        padding: .6em 2em;
        font-size: 0.8rem;
    }
    #start button {
        padding: .6em 2em;
        font-size: 1.2rem;
    }

    .items div{
        margin-top: 20%;
        font-size: 1.3em;
    }

    .current{
        font-size: 0.8rem;
    }
}

/* @media height less than 500px */

@media (max-height: 500px) {
    body{
        font-size: 0.5rem;
    }
}