@import url("https://fonts.googleapis.com/css2?family=Dancing+Script:wght@400..700&display=swap");

:root {
  --envelope-x: 300px;
  --envelope-y: 200px;
  --envelope-bg: Moccasin;
  --envelope-shadow: Peru;
  --letter-x: 250px;
  --letter-y: calc(250px - 1rem - 10px);
  --letter-bg: AntiqueWhite;
  --letter-shadow: BurlyWood;
  --letter-text: #180d07;
  --letter-font: "Dancing Script", serif;
  --letter-button-text: darkred;
  --heart-bg: darkred;
  --heart-text: white;
}

@media (min-width: 650px) {
  :root {
    --envelope-x: 600px;
    --envelope-y: 400px;
    --letter-x: 500px;
    --letter-y: calc(400px - 1rem - 10px);
  }
}
html {
  font-size: 20px;
}
body {
  background-color: darkred;
}

/* Mobile Warning */
.mobile-warning {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: darkred;
  z-index: 999999;
  align-items: center;
  justify-content: center;
}

.mobile-warning-content {
  text-align: center;
  color: white;
  padding: 2rem;
  font-family: "Dancing Script", serif;
}

.mobile-warning-content h1 {
  font-size: 5rem;
  margin-bottom: 1rem;
}

.mobile-warning-content h2 {
  font-size: 2rem;
  line-height: 1.5;
}

@media (max-width: 768px) {
  .mobile-warning {
    display: flex;
  }
  
  .cssletter {
    display: none !important;
  }
}

.cssletter {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  -webkit-user-select: none;
  margin: 24dvh 0;
}

.envelope {
  position: relative;
  width: var(--envelope-x);
  height: var(--envelope-y);
  background: var(--envelope-bg);
  box-shadow: inset 0 0 30px -5px var(--envelope-shadow), 0 0 50vw 0 #540000;
}

/* Ali */
.wing {
  background: white;
  border-radius: 12px 20px 60px 20px;
  width: 60px;
  height: 25px;
  position: absolute;
  top: 40%;
  z-index: 5;
}

@media (min-width: 650px) {
  .wing {
    width: 120px;
    height: 50px;
  }
}

/* Ala destra */
.right {
  right: -40px;
  animation: flap1 1s infinite;
  border-bottom: 3px solid rgba(0,0,0,.08);
  border-radius: 12px 20px 60px 20px;
  transform: rotate(-10deg);
}

@media (min-width: 650px) {
  .right {
    right: -80px;
  }
}

@keyframes flap1 {
  0% {
    transform: rotate(-10deg);
  }
  50% {
    transform: rotate(-5deg);
  }
}

.right:before {
  position: absolute;
  content: '';
  background: white;
  width: 70%;
  height: 70%;
  border-bottom: 3px solid rgba(0,0,0,.08);
  border-radius: 20px 20px 60px 20px;
  transform: rotate(20deg) translate(-1px,0);
  margin-top: 19px;
}

@media (min-width: 650px) {
  .right:before {
    margin-top: 38px;
  }
}

.right:after {
  position: absolute;
  content: '';
  background: white;
  width: 40%;
  transform: rotate(29deg) translate(-8px,0);
  height: 30%;
  border-bottom: 3px solid rgba(0,0,0,.08);
  border-radius: 0px 0px 60px 70px;
  margin-top: 33px;
}

@media (min-width: 650px) {
  .right:after {
    margin-top: 66px;
  }
}

/* Ala sinistra */
.left {
  border-radius: 12px 20px 20px 60px;
  left: -40px;
  animation: flap2 1s infinite;
  border-bottom: 3px solid rgba(0,0,0,.08);
  transform: rotate(10deg);
}

@media (min-width: 650px) {
  .left {
    left: -80px;
  }
}

@keyframes flap2 {
  0% {
    transform: rotate(10deg);
  }
  50% {
    transform: rotate(5deg);
  }
}

.left:before {
  position: absolute;
  content: '';
  background: white;
  width: 70%;
  border-bottom: 3px solid rgba(0,0,0,.08);
  transform: translate(46%,0) rotate(-20deg);
  height: 60%;
  border-radius: 12px 20px 70px 70px;
  margin-top: 20px;
}

@media (min-width: 650px) {
  .left:before {
    margin-top: 40px;
  }
}

.left:after {
  position: absolute;
  content: '';
  background: white;
  width: 40%;
  border-bottom: 3px solid rgba(0,0,0,.08);
  height: 30%;
  transform: translate(164%,0) rotate(-34deg);
  border-radius: 0px 0px 70px 60px;
  margin-top: 29px;
}

@media (min-width: 650px) {
  .left:after {
    margin-top: 58px;
  }
}

.envelope::before {
  content: "˚ʚ❤︎ɞ˚";
  font-size: 5rem;
  color: white;
  position: absolute;
  left: 50%;
  top: 30%;
  transform: translate(-50%, -50%);
  mix-blend-mode: soft-light;
}

.envelope-flap {
  width: 100%;
  height: 71%;
  position: absolute;
  top: 0;
  z-index: 3;
  overflow: hidden;
  transition: 0.6s linear all;
  transform-origin: top;
  pointer-events: all;
}

.envelope-folds {
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 2;
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}

.envelope-flap::before,
.envelope-left::before,
.envelope-right::before,
.envelope-bottom::before {
  content: "";
  transform: rotate(45deg);
  background: var(--envelope-bg);
  box-shadow: 0 0 30px -5px var(--envelope-shadow);
  width: 100%;
  aspect-ratio: 1;
  display: block;
  position: absolute;
  top: 60%;
}

.envelope-flap::before {
  border-radius: 5rem;
  bottom: 30px;
  border-radius: 5rem;
  top: auto;
}

@media (min-width: 650px) {
  .envelope-flap::before {
    bottom: 100px;
  }
}

.envelope-left::before {
  top: 10%;
  left: -65%;
}

.envelope-right::before {
  top: 10%;
  right: -65%;
}

.envelope-bottom::before {
  top: 60%;
  border-radius: 5rem;
}

.heart {
  z-index: 4;
  position: relative;
  box-shadow: none;
  border: none;
  width: 70px;
  aspect-ratio: 1;
  background: radial-gradient(circle at 60% 65%, var(--heart-bg) 64%, #0000 65%)
      top left/50% 50%,
    radial-gradient(circle at 40% 65%, var(--heart-bg) 64%, #0000 65%) top
      right/50% 50%,
    conic-gradient(from -45deg at 50% 85.5%, var(--heart-bg) 90deg, #0000 0)
      bottom/100% 50%;
  background-repeat: no-repeat;
  left: 50%;
  top: 70%;
  transform: translate(-50%, -50%);
  cursor: pointer;
  animation: heartbeat 1s infinite;
}

@keyframes heartbeat {
  0% {
    transform: translate(-50%, -50%) scale(0.8);
  }
  50% {
    transform: translate(-50%, -50%) scale(0.92);
  }
  100% {
    transform: translate(-50%, -50%) scale(0.8);
  }
}

@media (min-width: 650px) {
  .heart {
    width: 150px;
  }
}

.heart::before {
  content: "";
  display: block;
  position: absolute;
  width: 70px;
  aspect-ratio: 1;
  background: radial-gradient(circle at 60% 65%, #ffffff26 64%, #0000 65%) top
      left/50% 50%,
    radial-gradient(circle at 40% 65%, #ffffff26 64%, #0000 65%) top right/50%
      50%,
    conic-gradient(from -45deg at 50% 85.5%, #ffffff26 90deg, #0000 0)
      bottom/100% 50%;
  background-repeat: no-repeat;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) scale(0);
  transition: 0.3s ease all;
  z-index: -1;
}

@media (min-width: 650px) {
  .heart::before {
    width: 150px;
  }
}

.heart:hover,
.heart:active,
.heart:focus {
  background-color: transparent;
  color: var(--heart-text);
}

.heart:hover::before,
.heart:active::before,
.heart:focus::before {
  transform: translate(-50%, -50%) scale(0.8);
}

.heart-text {
  transform: translateY(-10px);
  display: block;
  color: var(--heart-text);
  font-size: 1.5rem;
  font-family: var(--letter-font);
}

.envelope.active * {
  pointer-events: none;
}

.envelope.active .envelope-flap {
  transform: rotateX(-180deg) translateY(0);
  perspective: 10px;
}

.envelope.active .envelope-flap::before {
  box-shadow: inset 0 0 30px -5px var(--envelope-shadow);
}

.envelope.active .heart {
  display: none;
}

.letter {
  box-sizing: border-box;
  font-family: var(--letter-font);
  font-size: 1rem;
  line-height: 1.1;
  background-color: var(--letter-bg);
  color: var(--letter-text);
  width: var(--letter-x);
  height: var(--letter-y);
  user-select: none;
  box-shadow: inset 0 0 20px -5px var(--letter-shadow);
  padding: 3rem 1rem 1rem;
  margin: 0;
  cursor: grab;
  position: absolute;
  top: 1rem;
  overflow: hidden;
  text-align: center;
  border: 0;
}

.letter:active {
  cursor: grabbing;
}

.letter.center {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
}

.letter cite {
  font-size: 1.25rem;
  color: var(--letter-text);
  margin-top: 1rem;
  display: block;
}

.letter cite.signature {
  text-align: right !important;
  font-style: italic;
  margin-top: 2rem;
  padding-right: 1rem;
  width: 100%;
}

.letter cite::before {
  content: none;
}

.letter-image {
  width: calc(100% - 2rem);
  height: calc(100% - 4rem);
  object-fit: cover;
  border-radius: 5px;
  position: absolute;
  top: 3rem;
  left: 1rem;
  z-index: 1;
  pointer-events: none;
  user-select: none;
  -webkit-user-drag: none;
  -webkit-user-select: none;
}

@media (max-width: 768px) {
  .letter-image {
    width: calc(100% - 1rem);
    height: calc(100% - 3rem);
    top: 2.5rem;
    left: 0.5rem;
  }
}

.letter:nth-child(even) {
  transform: skew(-2deg) translateY(-4px);
}

.letter:nth-child(odd) {
  transform: skew(2deg) translateY(4px);
}

@media (min-width: 650px) {
  .letter {
    font-size: 1.3rem;
  }
}

.closeLetter {
  font-size: 0 !important;
  position: absolute;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  background: none;
  box-shadow: none;
  padding: 0;
  border: 0;
  z-index: 2;
  cursor: pointer;
}

@media (max-width: 768px) {
  .closeLetter {
    top: 0.5rem;
  }
}

.closeLetter::before {
  content: "˚ʚ❤︎ɞ˚";
  font-size: 1.5rem !important;
  font-family: var(--letter-font);
  color: var(--letter-button-text);
  text-align: center;
}

.closeLetter:hover,
.closeLetter:active,
.closeLetter:focus {
  background-color: transparent;
  color: var(--letter-text);
  transform: translateX(-50%);
  padding: 0;
  margin: 0;
}

.closeLetter:hover::before,
.closeLetter:active::before,
.closeLetter:focus::before {
  content: "xXx";
}

/* Contenuto lettere con testo */
.letter-content {
  width: 100%;
  padding: 1rem;
}

.letter-content h1 {
  color: darkred;
  font-size: 1.5rem;
  margin-bottom: 2rem;
  line-height: 1.5;
}

@media (min-width: 650px) {
  .letter-content h1 {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .letter-content h1 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
  }
}

/* Bottoni */
.buttons {
  display: flex;
  gap: 20px;
  margin-top: 20px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  min-height: 150px;
  width: 100%;
}

.btn {
  padding: 6px 50px;
  font-size: 1.1rem;
  border: none;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  font-weight: bold;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  font-family: var(--letter-font);
  z-index: 3;
  position: relative;
  transform-origin: center;
  max-height: 45px;
  line-height: 1.2;
}

@media (max-width: 480px) {
  .btn {
    padding: 5px 40px;
    font-size: 1rem;
    max-height: 38px;
  }
}

.btn-yes {
  background: linear-gradient(135deg, #ff6b9d 0%, #ff8fab 100%);
  color: white;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-yes:hover,
.btn-yes:focus {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(255, 107, 157, 0.4);
}

.btn-no {
  background: linear-gradient(135deg, #6c757d 0%, #868e96 100%);
  color: white;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn-no:hover,
.btn-no:focus {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(108, 117, 125, 0.4);
}

/* Messaggio finale */
.message {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0);
  background: white;
  padding: 50px;
  border-radius: 20px;
  box-shadow: 0 10px 50px rgba(0, 0, 0, 0.3);
  text-align: center;
  z-index: 100000;
  opacity: 0;
  transition: all 0.5s ease;
  font-family: var(--letter-font);
}

.message.show {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
}

.message h2 {
  font-size: 2rem;
  color: #ff6b9d;
  margin-bottom: 20px;
}

.message p {
  font-size: 1.2rem;
  color: #333;
}

/* Animazioni per la cascata di cuori */
@keyframes heartFall {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 1;
  }
  100% {
    transform: translateY(100vh) rotate(360deg);
    opacity: 0;
  }
}

/* Animazioni fade per la GIF */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
  }
}

/* Attribution */
@import url("https://frills.dev/css/abstracts/_variables.css");
@import url("https://frills.dev/css/components/_logo.css");

:root {
  --bodybg: darkred;
}

footer {
  position: fixed;
  bottom: 1rem;
  right: 1rem;
  z-index: 10000000;
}

footer svg {
  width: 100px;
}