@import url('https://fonts.googleapis.com/css2?family=Coiny&family=Titan+One&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Nerko+One&family=Sriracha&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Dancing+Script:wght@700&display=swap');
*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}
:root{
    --color-pink: #feecea;
    --color-white: #fff;
    --color-black: #333;
    --color-text-pink: #ff7882;
    --color-heart: #F61F1F;
    --color-bg-letter: #fff8e4;
    --color-border: #DACCBF;
}
html{
    height: 100%;
}
body {
    position: relative;
    font-size: 16px;
    margin: 0;
    padding: 0;
    height: 100%;
    background-image:linear-gradient(var(--color-pink), var(--color-pink));
}
#wrapper{
    position: relative;
    background-color: transparent;
    background-image: linear-gradient(0deg, transparent 24%, rgba(255, 255, 255, 1) 25%, rgba(255, 255, 255, 1) 26%, transparent 27%, transparent 74%, rgba(255, 255, 255, 1) 75%, rgba(255, 255, 255, 1) 76%, transparent 77%, transparent), linear-gradient(90deg, transparent 24%, rgba(255, 255, 255, 1) 25%, rgba(255, 255, 255,1) 26%, transparent 27%, transparent 74%, rgba(255, 255, 255, 1) 75%, rgba(255, 255, 255, 1) 76%, transparent 77%, transparent);
    height:100%;
    background-size:80px 80px;
    overflow: hidden;
    z-index: 1;
}
.flag__birthday{
    display: flex;
    justify-content: space-between;
    transform: translateY(-200px);
    animation: translateYFlag 1.5s 2s forwards;
}
@keyframes translateYFlag{
    to{
        transform: translateY(-10px);
    }
}
.flag__birthday .flag__left{
    transform: rotate(-10deg) translate(-20px,30px);
}
.flag__birthday .flag__right{
    transform: rotate(10deg) translate(20px,30px) scaleX(-1);
}
.content{
    width: 100%;
    position: relative;
    display: flex;
    padding-top: 3rem;
}
.content .left, .content .right{
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.content .left{
    width: 40%;
}
.content .right{
    width: 60%;
}
.left .btn{
    transform: scale(0);
    animation: scaleCricle 2s 16s forwards ease-in-out;
}
#btn__letter{
    position: relative;
    margin-top: 30px;
    background-color: var(--color-text-pink);
    outline: none;
    padding: 5px 15px;
    font-size: 1rem;
    border-radius: 50px;
    border: 3px solid var(--color-black);
    font-family: "Sriracha", cursive;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 2;
    transform: scale(1);
    transition: all .5s ease-in-out;
}
#btn__letter:active{
    transform: scale(0.7);
}
#btn__letter i{
    margin-left: 5px;
}
#btn__letter:hover{
    border-color: var(--color-heart);
    background-color: var(--color-heart);
    color: #fff;
    box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;
}

#btn__letter:hover i{
    animation: rotateHeart 1s infinite linear;
}
@keyframes rotateHeart{
    0%,50%, 100%{
        transform: rotate(0deg);
    }
    25%{
        transform: rotate(12deg);
    }
    75%{
        transform: rotate(-12deg);
    }
}
.title{
    position: relative;
    width: 100%;
    display: flex;
    justify-content: center;
    font-family: "Titan One", sans-serif;
    font-size: 3rem;
    flex-direction: column;
    perspective: 1000px;
}
.title .happy, .title .birthday{
    position: relative;
    text-shadow: 4px 4px var(--color-black), 
                -4px 4px var(--color-black), 
                4px -4px var(--color-black), 
                -4px -4px var(--color-black), 
                4px 8px 0 var(--color-black);
    font-weight: bold;
    display: flex;
    justify-content: center;
}
.title .happy{
    color: var(--color-white);
}
.title .happy span, .title .birthday span{
    transform: translateY(50px);
    opacity: 0;
    visibility: hidden;
    animation: txtTranslateY .5s var(--t) forwards;
}
@keyframes txtTranslateY{
    100%{
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
}
.title .birthday{
    color: var(--color-text-pink);
}

.title .hat{
    position: absolute;
    right: -80px;
    top: -350px;
    transform: rotate(-40deg);
    z-index: -1;
    animation: topHat 4s 7s forwards ease;
}
@keyframes topHat{
    20%, 30%{
        top: -30px;
        transform-origin: left;
        transform: rotate(-40deg);
    }
    35%, 100%{
        top: -30px;
        transform: rotate(0deg);
    }
}
.date__of__birth, .name{
    display: flex;
    justify-content:space-around;
    align-items: center;
    background-color: var(--color-text-pink);
    border-radius: 50px;
    margin-top: 20px;
    font-family: "Sriracha", cursive;
    
}
.date__of__birth{
    border: 3px solid var(--color-black);
    position: relative;
    transform: translateY(-100px);
    z-index: -1;
    opacity: 0;
    visibility: hidden;
    width: 0px;
    animation: dateOfBirth 5s 9s forwards;
}
@keyframes dateOfBirth{
    20%,40%{
        width: 0px;
        height: 0;
        transform: translateY(0px);
        opacity: 1;
        visibility: visible;
    }
    45%{
        transform: translateY(0px);
        opacity: 1;
        visibility: visible;
        width: 300px;
        height: 0px;
    }
    50%,100%{
        transform: translateY(0px);
        opacity: 1;
        visibility: visible;
        width: 300px;
        height: 50px;
    }
}
.name {
    /* Các thuộc tính hiện có */
    position: absolute;
    padding: 0px 40px;
    bottom: -20px;
    border: 3px solid var(--color-black);
    background-color: var(--color-text-pink); /* Thêm màu nền để dễ nhìn */
    
    /* Các thuộc tính mới để căn giữa và giữ tên trên một hàng */
    display: flex; /* Sử dụng Flexbox để sắp xếp các thành phần */
    align-items: center; /* Căn giữa các thành phần theo chiều dọc */
    justify-content: center; /* Căn giữa các thành phần theo chiều ngang */
    white-space: nowrap; /* Ngăn không cho văn bản bị xuống dòng */
    width: fit-content; /* Chiều rộng vừa với nội dung */
    left: 50%; /* Dịch chuyển từ lề trái 50% */
    transform: translateX(-50%); /* Dịch lại 50% chiều rộng của chính nó để căn chính giữa */
}

/* Thêm hoặc chỉnh sửa class này để căn giữa văn bản và tạo khoảng cách giữa các thành phần */
.name span {
    text-align: center;
    font-size: 1.7rem;
    font-weight: bold;
    margin: 0 10px; /* Thêm khoảng cách giữa tên và các ngôi sao */
}

/* Điều chỉnh vị trí của các ngôi sao trong .name */
.name .fa-star {
    font-size: 1rem;
    color: var(--color-black);
}
.date__of__birth span, .name span{
    font-weight: bold;
    margin: 0px 40px;
}
.date__of__birth span{
    font-size: 1.2rem;
}
.name span{
    font-size: 1.7rem;
}
.right .box__account{
    position: relative;
    transform: translateY(700px);
    animation: topBoxImage 8s 7s forwards ease-in;
}
@keyframes topBoxImage{
    to{
        transform: translateY(0);
    }
}
.content .right .image{
    position: relative;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    overflow: hidden;
    display: flex;
    align-items: center;
    border: 6px solid var(--color-black);
}
.content .right .image img{
    width: 100%;
    object-fit: cover;

}
.cricle{
    position: absolute;
    top: 20px;
    right: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    transform: scale(0);
    animation: scaleCricle 3s 15s forwards ease-in-out;
}
@keyframes scaleCricle {
    0%{
        transform: scale(0);
    }
    10%{
        transform: scale(1.3);
    }
    20%{
        transform: scale(0.7);
    }
    30%,100%{
        transform: scale(1);
    }

}
.text__cricle{
    width: 100px;
    height: 100px;
    background-color: var(--color-text-pink);
    border-radius: 50%;
    border: 5px solid var(--color-black);
    display: flex;
    justify-content: center;
    align-items: center;
    animation: rotateCricle 5s linear infinite;
}
@keyframes rotateCricle{
    to{
        transform: rotate(360deg);
    }
}
.text__cricle span{
    top: 0%;
    left: 50%;
    position: absolute;
    color: var(--color-black);
    transform: rotate(calc(var(--i) * 24deg));
    transform-origin: 0 45px;
    font-family: "Sriracha", cursive;
    text-transform: uppercase;
    font-size: 0.7rem;
}
.fa-heart{
    color: var(--color-heart);
    filter: drop-shadow(0 0 3px var(--color-heart));
    animation: scaleHeart 1s infinite linear;
}
.cricle .fa-heart{
    position: absolute;
    transform: scale(0.85);
}
@keyframes scaleHeart{
    50%{
        transform: scale(1.2);
    }
}
.right .balloon_one{
    position: absolute;
    top: -70px;
    left: -70px;
    animation: balloon1 2s infinite linear;
}
@keyframes balloon1{
    0%, 50%,100%{
        transform-origin: bottom right;
        transform: rotate(0deg);
    }
    25%{
        transform-origin: bottom right;
        transform: rotate(3deg);
    }
    75%{
        transform-origin: bottom right;
        transform: rotate(-3deg);
    }
}
.right .balloon_two{
    position: absolute;
    top: 170px;
    right: -65px;
    z-index: -1;
    transform: rotate(10deg);
    animation: balloon2 2s infinite linear;
}
@keyframes balloon2 {
    0%,50%,100%{
        transform-origin: bottom left;
        transform: rotate(10deg);
    }
    25%{
        transform-origin: bottom left;
        transform: rotate(7deg);
    }
    75%{
        transform-origin: bottom left;
        transform: rotate(13deg);
    }
}

.decorate_star{
    position: absolute;
    transform: scale(0);
    background-color: var(--color-black);
    clip-path: polygon(0 50%, 35% 35%, 50% 0, 65% 35%, 100% 50%, 65% 65%, 50% 100%, 35% 65%);
    animation: scaleCricle 3s var(--t) forwards, 
            scaleStar 2s 16s infinite ease-in-out;
}
.decorate_star.star1{
    width: 20px;
    height: 20px;
    top: 75px;
    left: 300px;
}
.decorate_star.star2{
    width: 15px;
    height: 20px;
    top: 35px;
    right: 360px;
}
.decorate_star.star3{
    width: 14px;
    height: 14px;
    top: 290px;
    left: 630px;
}
.decorate_star.star4{
    width: 18px;
    height: 18px;
    bottom: 60px;
    left: 35px;
}
.decorate_star.star5{
    width: 16px;
    height: 18px;
    bottom: 140px;
    left: 500px;
}
@keyframes scaleStar {
    25%{
        transform: scale(0.8);
    }
    50%{
        transform: scale(1.1);
    }
}
.decorate_bottom{
    position: absolute;
    right: 0;
    bottom: -10px;
}
.decorate_flower--one{
    position: absolute;
    top: 250px;
    left: 50px;
    transform: scale(0);
    animation: scaleCricle 3s var(--t) forwards ease-in-out;
}
.decorate_flower--two{
    position: absolute;
    top: 225px;
    left: 540px;
    transform: scale(0);
    animation: scaleCricle 3s var(--t) forwards ease-in-out;
}
.decorate_flower--three{
    position: absolute;
    top: 150px;
    right: 235px;
    transform: scale(0);
    animation: scaleCricle 3s var(--t) forwards ease-in-out;
}
.smiley__icon{
    position: absolute;
    bottom: 180px;
    left: 555px;
    transform: scale(0);
    animation: scaleCricle 3s 15s forwards ease-in-out;
}


.box__letter{
    position: fixed;
    top: 0;
    left: 0;
    background-color: rgba(0,0,0,.5);
    width: 100%;
    height: 100%;
    z-index: 10;
    display: none;
}
.box__letter .letter__border{
    position: absolute;
    width: 55vw;
    height: 450px;
    background-color: var(--color-white);
    border-radius: 27px;
    padding: 17px;
    box-shadow: rgba(0, 0, 0, 0.24) 0px 3px 8px;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    display: none;
}
.letter__border .close{
    position: absolute;
    right: -10px;
    top: -10px;
    width: 30px;
    height: 30px;
    background-color: var(--color-white);
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: rgba(99, 99, 99, 0.2) 0px 2px 8px 0px;
    cursor: pointer;
}
.letter__border .letter{
    width: 100%;
    height: 100%;
    background-color: var(--color-bg-letter);
    border-radius: 10px;
    padding-top: 15px;
}
.letter__border .letter .title__letter{
    text-align: center;
    font-family: 'Dancing Script', cursive;
    font-weight: bold;
    font-size: 2.4rem;
}
.title__letter .fa-solid{
    margin-left: 5px;
    font-size: 1.3rem;
}
.letter__border .letter .content__letter{
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    padding-top: 1.5rem;
    padding-bottom: 70px;
}
.letter__border .letter .content__letter .left{
    position: relative;
    width: 50%;
    height: 100%;
    padding: 1.7rem;
    border-right: 3px solid var(--color-border);
}
.content__letter .left #heart__letter{
    opacity: 0;
    width: 100%;
}
#heart__letter.animationOp{
    animation: opacityHeart 1s 1s forwards;
}
@keyframes opacityHeart{
    to{
        opacity: 1;
    }
}
.content__letter .left .heart{
    position: absolute;
    opacity: 0;
}
.content__letter .left .heart.animation{
    animation: scaleHeartLetter 1s var(--t) infinite ease-in-out;
}
@keyframes scaleHeartLetter{
    0%{
        opacity: 1;
        transform: scale(0);
    }
    10%{
        opacity: 1;
        transform: scale(1.3);
    }
    20%{
        opacity: 1;
        transform: scale(0.7);
    }
    30%,100%{
        opacity: 1;
        transform: scale(1);
    }
    
}
.content__letter .left .heart_1{
    top: 90px;
    left: 30px;
}
.content__letter .left .heart_2{
    top: 20px;
    right: 70px;
}
.content__letter .left .heart_3{
    bottom: 50px;
    left: 145px;
}
.content__letter .left .heart_4{
    top: 140px;
    right: 35px;
}
.content__letter .right{
    position: relative;
    width: 50%;
}
.content__letter .right .love__img{
    opacity: 0;
    position: absolute;
    right: 20px;
    top: -50px;
}
.love__img.animationOp{
    animation: opacityHeart 1s 1s forwards;
}
.content__letter .right .text__letter{
    margin-top: 60px;
    padding: 20px 15px 10px 15px;
    font-family: 'Dancing Script', cursive;
    font-size: 1.3rem;
}
.content__letter .right #mewmew{
    position: absolute;
    bottom: 0;
    right: 0;
    opacity: 0;
}
#mewmew.animationOp{
    animation: opacityHeart 1s 1s forwards;
}

.content .right .day, .content .right .month{
    font-family: "Titan One", sans-serif;
    color: var(--color-white);
    text-shadow: 2px 4px 0 var(--color-black);
    font-weight: bold;
    font-size: 2.5rem;
    position: absolute;
    -webkit-text-stroke: 0.5px var(--color-black);
    display: none;
}
.content .right .day{
    left: 30px;
}
.content .right .month{
    right: 30px;
}

/* responsive */
@media screen and (max-width:768px) {
    .flag__birthday{
        animation-delay: 0.2s;
    }
    .flag__birthday .flag__left,
    .flag__birthday .flag__right{
        width: 160px;
    }
    .flag__left{
        transform: rotate(-10deg) translate(-20px,20px)!important;
    }
    .flag__right{
        transform: rotate(10deg) translate(20px, 20px) scaleX(-1)!important;
    }
    #wrapper .content{
        flex-direction: column;
    }
    #wrapper .content .left{
        position: unset;
    }
    #wrapper .content .left,#wrapper .content .right{
        width: 100%!important;
    }
    #wrapper .content .left .title{
        font-size: 2rem;
    }
    .happy span:nth-child(1){
        animation-delay: 1s;
    }
    .happy span:nth-child(2){
        animation-delay: 1.2s;
    }
    .happy span:nth-child(3){
        animation-delay: 1.4s;
    }
    .happy span:nth-child(4){
        animation-delay: 1.6s;
    }
    .happy span:nth-child(5){
        animation-delay: 1.8s;
    }
    .birthday span:nth-child(1){
        animation-delay: 2s;
    }
    .birthday span:nth-child(2){
        animation-delay: 2.2s;
    }
    .birthday span:nth-child(3){
        animation-delay: 2.4s;
    }
    .birthday span:nth-child(4){
        animation-delay: 2.6s;
    }
    .birthday span:nth-child(5){
        animation-delay: 2.8s;
    }
    .birthday span:nth-child(6){
        animation-delay: 3s;
    }
    .birthday span:nth-child(7){
        animation-delay: 3.2s;
    }
    .birthday span:nth-child(8){
        animation-delay: 3.4s;
    }
    .title .hat{
        animation-delay: 3.5s;
        right: -50px;
    }
    .title .hat img{
        width: 85px;
    }
    .date__of__birth, .balloon_one, .balloon_two{
        display: none;
    }
    .btn{
        position: absolute;
        bottom: -100px;
    }
    #wrapper .content .right{
        margin-top: 40px;
    }
    .right .box__account{
        display: flex;
        justify-content: center;
        width: 100%;
        transform: translateY(0);
        animation: none!important;
    }
    .right .box__account .image{
        width: 200px;
        height: 200px;
        transform: scale(0);
        animation: scaleHeartLetter 2s 4s forwards!important;
    }
    .right .box__account .name{
        padding: 0 20px;
        transform: scale(0);
        animation: scaleHeartLetter 2s 5s forwards!important;
    }
    .right .box__account .name span{
        font-size: 1rem;
        margin: 0 20px;
    }
    .cricle{
        top: -20px;
        right: 20px;
        animation-delay: 6s;
    }
    .text__cricle{
        width: 65px;
        height: 65px;
        border-width: 2px;
    }
    .text__cricle span{
        transform-origin: 0 30px;
        font-size: 0.5rem;
    }
    .content .right .day, .content .right .month{
        display: block;
        /* transform: scale(0); */
        outline: none;
    }
    .decorate_star.star1 {
        top: 125px;
        left: 375px;
        animation-delay: 5.2s;
    }
    .decorate_star.star2 {
        top: 80px;
        right: 360px;
        animation-delay: 5.2s;
    }
    .decorate_star.star3 {
        top: 255px;
        left: 300px;
        animation-delay: 5.2s;
    }
    .decorate_star.star4{
        animation-delay: 5.2s;
    }
    .decorate_star.star5 {
        bottom: 140px;
        left: 350px;
        animation-delay: 5.2s;
    }
    .decorate_flower--one{
        animation-delay: 5.2s;
    }
    .decorate_flower--two{
        display: none;
    }
    .decorate_flower--three{
        top: 45px;
        animation-delay: 5.2s;
    }
    .left .btn{
        animation-delay: 6s;
    }
    .smiley__icon{
        display: none;
    }
    .box__letter .letter__border{
        width: 95%;
    }
    .letter__border .letter .title__letter{
        font-size: 2rem;
    }
    .content__letter .left{
        display: flex;
        justify-content: center;
        align-items: center;
    }
    .content__letter .left .heart_2{
        top: 50px;
    }
    .content__letter .left .heart_3 {
        bottom: 60px;
        left: 75px;
    }
    .content__letter .left .heart_4 {
        top: 140px;
        right: 15px;
    }
    .content__letter .right .love__img.animationOp img{
        width: 110px;
    }
    .text__letter{
        margin-top: 0px!important;
        font-size: 1rem!important;
    }
}