@font-face {
  font-family: 'TH Christmas Wishes';
  src: url('./font/TH Christmas Wishes.otf') format('opentype');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

body {
  margin: 0;
  overflow: hidden;
  background: linear-gradient(180deg, #ce1e2a 0%, #790116 50%, #420014 100%);
  height: 100vh;
  position: fixed;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Trang trí background trên cùng - định vị theo viewport */
.decor-top-left,
.decor-top-right,
.decor-light-left,
.decor-light-right {
    position: fixed;
    z-index: 6;
    pointer-events: none;
    opacity: 0;
}

.decor-top-left {
    top: -120px;
    left: 0;
    right: auto;
    animation: float-down-left 0.9s ease-out 0.1s forwards;
}

.decor-top-right {
    top: -120px;
    right: 0;
    left: auto;
    text-align: right; /* Căn ảnh về bên phải */
    animation: float-down-right 0.9s ease-out 0.18s forwards;
}

.decor-light-left {
    top: 10%;
    left: 0;
    right: auto;
    animation: float-down-left 0.9s ease-out 0.26s forwards;
}

.decor-light-right {
    top: 10%;
    right: 0;
    left: auto;
    text-align: right; /* Căn ảnh về bên phải */
    animation: float-down-right 0.9s ease-out 0.34s forwards;
}

.decor-top-left img,
.decor-top-right img{
    max-width: 50%;
    height: auto;
    display: block;
}
.decor-light-left img,
.decor-light-right img {
    max-width: 34%;
    height: auto;
    display: block;
}

/* Đảm bảo ảnh bên phải bám sát góc phải */
.decor-top-right img,
.decor-light-right img {
    margin-left: auto; /* Đẩy ảnh về bên phải */
    margin-right: 0; /* Bám sát góc phải */
}

/* Intro animations cho trang trí trên cùng */
@keyframes float-down-left {
    from {
        opacity: 0;
        transform: translate(-40px, -30px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translate(0, 0) scale(1);
    }
}

@keyframes float-down-right {
    from {
        opacity: 0;
        transform: translate(40px, -30px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translate(0, 0) scale(1);
    }
}

/* Loading Screen */
.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* background: linear-gradient(135deg, #000000 0%, #0d0e10 100%); */
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    transition: opacity 0.5s ease-out;
}

.loading-container {
    text-align: center;
    color: white;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top: 4px solid #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.loading-text {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 10px;
    font-family: 'Dancing Script', cursive;
    animation: fadeInOut 2s ease-in-out infinite;
}

.loading-subtitle {
    font-size: 16px;
    opacity: 0.8;
    font-family: Arial, sans-serif;
    animation: fadeInOut 2s ease-in-out infinite 0.5s;
}

@keyframes fadeInOut {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Error Screen */
.error-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f9d1d1 0%, #3e3636 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
}

.error-container {
    text-align: center;
    color: white;
    max-width: 400px;
    padding: 20px;
}

.error-icon {
    font-size: 80px;
    margin-bottom: 20px;
}

.error-title {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 15px;
    font-family: 'Dancing Script', cursive;
}

.error-message {
    font-size: 16px;
    margin-bottom: 30px;
    line-height: 1.5;
    opacity: 0.9;
    font-family: Arial, sans-serif;
}

.error-button {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid white;
    color: white;
    padding: 12px 30px;
    border-radius: 25px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: Arial, sans-serif;
}

.error-button:hover {
    background: white;
    color: #ff6b6b;
    transform: translateY(-2px);
}

html {
  overflow: hidden;
  height: 100%;
  width: 100%;
}

canvas {
    display: block;
}

/* Background stars */
.stars {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

svg{
  width: 90%;
  height: 90%;
  visibility: hidden;
} 

.canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
}

/* Book Overlay */
.hidden {
  display: none !important;
  pointer-events: none !important;
}

#guideInfo {
  position: fixed;
  inset: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  background: rgba(0, 0, 0, 0.6);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
  z-index: 3000;
  pointer-events: auto;
}

#guideInfo.hidden {
  pointer-events: none !important;
}

#guideInfo.show {
  opacity: 1;
  visibility: visible;
}

.card {
  color: #013243;
  position: relative;
  width: 30vw;
  height: 45vh;
  letter-spacing: 1px;
  background: #dc2626;
  transform-style: preserve-3d;
  font-family: "Times New Roman", Times, serif;
  transform: perspective(2000px);
  box-shadow: inset 30vw 0 50px rgba(0, 0, 0, 0.5),
    20px 0 60px rgba(0, 0, 0, 0.5);
  transition: 1s;
}

.card:hover {
  transform: perspective(2000px) rotate(15deg) scale(1.08) translateX(200px);
  box-shadow: inset 20px 0 50px rgba(0, 0, 0, 0.5),
    0 10px 100px rgba(0, 0, 0, 0.5);
}

.card.book-opened {
  transform: perspective(2000px) rotate(15deg) scale(1.08) translateX(200px);
  box-shadow: inset 20px 0 50px rgba(0, 0, 0, 0.5),
    0 10px 100px rgba(0, 0, 0, 0.5);
}

.card:before {
  content: "";
  position: absolute;
  top: -5px;
  left: 0;
  width: 100%;
  height: 5px;
  background: #b91c1c; /* đỉnh sách đỏ đậm để đồng bộ với nền */
  transform-origin: bottom;
  transform: skewX(-45deg);
}

.card:after {
  content: "";
  position: absolute;
  top: 0;
  right: -5px;
  width: 5px;
  height: 100%;
  background: #7f1d1d; /* gáy sách đỏ sẫm hơn để tạo chiều sâu */
  transform-origin: left;
  transform: skewY(-45deg);
}

.card .imgBox {
  width: 100%;
  height: 100%;
  position: relative;
  transform-origin: left;
  transition: 0.7s;
  overflow: hidden;
}

.card .bark {
  position: absolute;
  background: #e0e1dc;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: 0.7s;
}

.card .imgBox img {
  min-width: 250px;
  max-height: 400px;
}

.card-cover {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cover-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #B91E24 0%, #8B1519 100%);
  z-index: 1;
}

.moon-container {
  position: relative;
  top: -50px;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  overflow: hidden;
  z-index: 2;
}

.cover-moon {
  position: absolute;
  inset: 0;
  margin: auto;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background-color: #ffffff;
  box-shadow: 0 0 40px rgba(255, 255, 255, 0.7);
  opacity: 0;
}

.cover-star {
  position: absolute;
  top: -40px;
  left: 0;
  width: 60%;
  height: 60%;
  object-fit: contain;
  object-position: center top;
  z-index: 3;
  opacity: 0;
}

.cover-pinetree {
  position: absolute;
  bottom: -40px;
  left: 45%;
  transform: translateX(-50%);
  width: 80%;
  height: 75%;
  object-fit: contain;
  object-position: center bottom;
  z-index: 4;
  opacity: 0;
}

.cover-reindeer {
  position: absolute;
  top: 5%;
  left: 60%;
  transform: translateX(-50%);
  width: 35%;
  max-width: 350px;
  height: auto;
  z-index: 5;
  opacity: 0;
}

.cover-merrytext {
  position: absolute;
  bottom: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: 20%;
  height: auto;
  z-index: 6;
  filter: brightness(1.2);
  opacity: 0;
}

.cover-christmastext {
  position: absolute;
  bottom: -39%;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: auto;
  z-index: 6;
  filter: brightness(1.2);
  opacity: 0;
}

.card:hover .imgBox,
.card.book-opened .imgBox {
  transform: rotateY(-135deg);
}

.card:hover .bark,
.card.book-opened .bark {
  opacity: 1;
  transition: 0.6s;
  box-shadow: 500px 200px 100px rgba(0, 0, 0, 0.4) inset;
}

.card .details {
  position: absolute;
  top: 0;
  left: 0;
  box-sizing: border-box;
  padding: 10px;
  z-index: -1;
  margin-top: 30px;
  width: 100%;
  height: 75%;
  overflow-y: auto;
  overflow-x: hidden;
  scroll-behavior: smooth;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.card .details::-webkit-scrollbar {
  display: none;
}

.card .details p {
  font-size: 16px;
  line-height: 26px;
  padding: 5px 50px 5px 50px;
  color: #ffffff;
  margin: 0;
  word-wrap: break-word;
  white-space: normal;
  font-family: 'Dancing Script', 'Brush Script MT', 'Lucida Handwriting', cursive;
  font-weight: 500;
  letter-spacing: 0.5px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.card .details p .word-wrapper {
  display: inline-block;
  white-space: nowrap;
}

.card .details p .char {
  display: inline-block;
  will-change: transform, opacity;
}

.card .details p .char-space {
  display: inline-block;
  white-space: pre;
}

.card .details p .word {
  display: inline-block;
  will-change: transform, opacity;
}

.card .details p .word-space {
  display: inline-block;
}

.card .details p .typing-cursor {
  display: inline-block;
  color: #ffffff;
  font-weight: bold;
  margin-left: 1px;
  animation: blink 0.8s infinite;
  vertical-align: baseline;
}

@keyframes blink {
  0%, 50% { opacity: 1; }
  51%, 100% { opacity: 0; }
}

/* Hiệu ứng xuất hiện cho mặt trăng, sao, cây thông, tuần lộc */
@keyframes moonFadeIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes starDrop {
  from {
    opacity: 0;
    transform: translateY(-60px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes treeUp {
  from {
    opacity: 0;
    transform: translate(-50%, 60px);
  }
  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

@keyframes reindeerRun {
  from {
    opacity: 0;
    transform: translateX(-200%);
  }
  to {
    opacity: 1;
    transform: translateX(-50%);
  }
}

@keyframes merryFadeUp {
  from {
    opacity: 0;
    transform: translate(-50%, 20px);
  }
  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

@keyframes christmasFadeUp {
  from {
    opacity: 0;
    transform: translate(-50%, 40px);
  }
  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

/* Kích hoạt hiệu ứng khi overlay sách được mở */
#guideInfo.show .cover-moon {
  animation: moonFadeIn 1s ease-out forwards;
}

#guideInfo.show .cover-star {
  animation: starDrop 1s ease-out forwards;
  animation-delay: 1s;
}

#guideInfo.show .cover-pinetree {
  animation: treeUp 1s ease-out forwards;
  animation-delay: 1.5s;
}

#guideInfo.show .cover-reindeer {
  animation: reindeerRun 3s ease-in-out forwards;
  animation-delay: 2s;
}

#guideInfo.show .cover-merrytext {
  animation: merryFadeUp 1s ease-out forwards;
  animation-delay: 2.5s;
}

#guideInfo.show .cover-christmastext {
  animation: christmasFadeUp 1.2s ease-out forwards;
  animation-delay: 3s;
}

.card .details #messageContent p {
  color: #ffffff;
}

.text-right {
  text-align: right;
}


.star {
    position: absolute;
    background: #ffd700;
    border-radius: 50%;
    animation: twinkle 3s infinite;
}

@keyframes twinkle {

    0%,
    100% {
        opacity: 0.3;
        transform: scale(1);
    }

    50% {
        opacity: 1;
        transform: scale(1.2);
    }
}



/* Flying rabbit with ribbons - Middle left */
.flying-rabbit-section {
    position: fixed;
    bottom: 0;
    left: -50px;
    z-index: 8;
    opacity: 0;
    animation: rise-in-left 1s ease-out 0.2s forwards;
}

.flying-rabbit {
    width: 400px;
    height: 420px;
    animation: fly-around 6s ease-in-out infinite;
}
/* 
@keyframes fly-around {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    25% {
        transform: translate(20px, -20px) rotate(5deg);
    }

    50% {
        transform: translate(-10px, -30px) rotate(-5deg);
    }

    75% {
        transform: translate(-20px, -10px) rotate(3deg);
    }
} */

/* Traditional woman - Bottom right */
.woman-section {
    position: fixed;
    bottom:1%;
    right: -1%;
    z-index: 7;
    opacity: 0;
    animation: rise-in-right 1s ease-out 0.35s forwards;
}

.woman {
    width: 350px;
    height: auto;
    animation: gentle-sway 4s ease-in-out infinite;
}
/* 
@keyframes gentle-sway {

    0%,
    100% {
        transform: rotate(-1deg);
    }

    50% {
        transform: rotate(1deg);
    }
} */

.mountain-section {
    position: fixed;
    bottom: -10%;
    z-index: 8;
    left: -70px;
    
}

.mountain {
    width: 110vw;
    height: 110%;
    /* height: 100%; */
}


.flying-rabbit-section,
.woman-section,
.mountain-section {
    pointer-events: none;
}

/* Intro animations cho nhân vật và background dưới */
@keyframes rise-in-left {
    from {
        opacity: 0;
        transform: translate(-60px, 40px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translate(0, 0) scale(1);
    }
}

@keyframes rise-in-right {
    from {
        opacity: 0;
        transform: translate(60px, 40px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translate(0, 0) scale(1);
    }
}
@keyframes fade-in-up {
  from {
      opacity: 0;
      transform: translateY(30px);
  }
  to {
      opacity: 1;
      transform: translateY(0);
  }
}
/* Mobile Responsive */
@media (max-width: 768px) {

    /* Book / card trên mobile */
    .card {
        width: 80vw;
        height: 70vh;
        transform: perspective(1600px);
        box-shadow: inset 60vw 0 50px rgba(0, 0, 0, 0.5),
        10px 0 40px rgba(0, 0, 0, 0.5);
    }

    /* Trên mobile, khi mở sách không dịch sang phải như laptop */
    .card.book-opened {
        transform: perspective(1600px) rotate(8deg) scale(1.03) translateX(0);
    }

    /* Hover trên mobile (ít khi dùng) vẫn giữ hiệu ứng nhẹ */
    .card:hover {
        transform: perspective(1600px) rotate(10deg) scale(1.03) translateX(10px);
    }

    .card .details {
        margin-top: 40px;
        padding: 0 16px 16px 20px;
        height: 72%;
    }

    .card .details p {
        font-size: 18px;
        line-height: 26px;
        padding: 4px 8px 4px 8px;
    }

    .moon-container {
        top: -20%;
        width: 260px;
        height: 260px;
    }

    .cover-pinetree {
        width: 65%;
    }

    .cover-star {
        width: 90%;
    }

    .cover-reindeer {
        width: 30%;
        top: 8%;
        left: 70%;
    }

    .cover-merrytext {
        width: 80%;
        bottom: 13%;
    }

    .cover-christmastext {
        width: 100%;
        bottom: -20%;
    }

    /* Flying rabbit - thu nhỏ và điều chỉnh */
    .flying-rabbit-section {
        position: fixed;
       left: -8%;
    }

    .flying-rabbit {
        width: 200px;
        height: 230px;
    }

    /* Woman section - thu nhỏ và điều chỉnh vị trí */
    .woman-section {
        position: fixed;
        bottom: 1%;
        right: -10%;
    }

    .woman {
        width: 180px;
        height: auto;
    }

    /* Mountain - thu nhỏ và điều chỉnh */
    .mountain-section {
        position: fixed;
        bottom: -10px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 8;
    }

    .mountain {
        width: 125vw;
        height: auto;
        max-height: 50vh; /* Giới hạn chiều cao để không bị quá lớn trên màn hình ngắn */
        object-fit: cover;
        object-position: bottom;
    }
    .decor-top-left,
    .decor-top-right{
        top: -20px;
    }
    
    .decor-top-left img,
    .decor-top-right img{
        max-width: 65%;
    }
    .decor-light-left img,
.decor-light-right img {
    max-width: 56%;
}


.decor-light-left,
.decor-light-right {
    top: 6%;
}

    /* SVG Tree - đẩy lên cao hơn trên mobile */
    .mainSVG {
        transform: translateY(-7%);
        margin-top: -10vh;
    }

}


/* Tablet Responsive */
@media (max-width: 1024px) and (min-width: 769px) {
    /* Book / card trên tablet */
      /* Mountain - thu nhỏ và điều chỉnh */
      .mountain-section {
        position: fixed;
        bottom: -15px;
        left: 50%;
        transform: translateX(-50%);
        z-index: 8;
    }

    .mountain {
        width: 125vw;
        height: auto;
        max-height: 50vh; /* Giới hạn chiều cao để không bị quá lớn trên màn hình ngắn */
        object-fit: cover;
        object-position: bottom;
    }
    .decor-top-left,
    .decor-top-right{
        top: -35px;
    }
   /* Trên mobile, khi mở sách không dịch sang phải như laptop */
   .card.book-opened {
    transform: perspective(1600px) rotate(8deg) scale(1.03) translateX(50px);
}

 .card {
        width: 60vw;
        height: 65vh;
        transform: perspective(1600px);
        box-shadow: inset 60vw 0 50px rgba(0, 0, 0, 0.5),
        10px 0 40px rgba(0, 0, 0, 0.5);
    }



    .card .details {
        margin-top: 40px;
        padding: 0 16px 16px 20px;
        height: 72%;
    }

    .card .details p {
        font-size: 18px;
        line-height: 26px;
        padding: 4px 8px 4px 8px;
    }
     .moon-container {
        top: -20%;
        width: 260px;
        height: 260px;
    }

    .cover-pinetree {
        width: 65%;
    }

    .cover-star {
        width: 90%;
    }

    .cover-reindeer {
        width: 30%;
        top: 8%;
        left: 70%;
    }

    .cover-merrytext {
        width: 80%;
        bottom: 18%;
    }

    .cover-christmastext {
        width: 100%;
        bottom: -20%;
    }
}