:root {
  color-scheme: dark;
  --ink: #fff8fb;
  --muted: rgba(255, 238, 247, 0.64);
  --rose: #ff6f9f;
  --rose-bright: #ff9abe;
  --violet: #9a70ff;
  --card-border: rgba(255, 255, 255, 0.13);
  --pointer-x: 50vw;
  --pointer-y: 50vh;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
}

html {
  background: #160b20;
}

body {
  min-height: 100svh;
  overflow: hidden;
  color: var(--ink);
  font-family: "DM Sans", sans-serif;
  -webkit-font-smoothing: antialiased;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  color: inherit;
}

.experience {
  position: relative;
  display: grid;
  width: 100%;
  min-height: 100svh;
  place-items: center;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(circle at 75% 8%, rgba(255, 176, 158, 0.22), transparent 29%),
    radial-gradient(circle at 50% 38%, rgba(157, 66, 126, 0.26), transparent 33%),
    radial-gradient(circle at 8% 100%, rgba(92, 59, 156, 0.24), transparent 34%),
    linear-gradient(155deg, #301229 0%, #170d24 48%, #0b0a1a 100%);
  perspective: 1100px;
}

#universe,
.grain,
.pointer-glow,
.aurora {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

#universe {
  z-index: -5;
  width: 100%;
  height: 100%;
}

.aurora {
  z-index: -4;
  inset: auto;
  width: min(58vw, 820px);
  aspect-ratio: 1;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.22;
  will-change: transform;
}

.aurora--rose {
  top: -28%;
  right: -12%;
  background: #ed7c83;
}

.aurora--violet {
  bottom: -36%;
  left: -17%;
  background: #7047bd;
}

.pointer-glow {
  z-index: -3;
  background: radial-gradient(
    340px circle at var(--pointer-x) var(--pointer-y),
    rgba(255, 108, 162, 0.12),
    transparent 72%
  );
  mix-blend-mode: screen;
}

.grain {
  z-index: 8;
  opacity: 0.055;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.8'/%3E%3C/svg%3E");
}

.love-card {
  position: relative;
  z-index: 2;
  width: min(92vw, 630px);
  max-height: calc(100svh - 48px);
  padding: clamp(24px, 4vh, 44px) clamp(24px, 6vw, 62px) clamp(20px, 3.6vh, 38px);
  overflow: hidden;
  border: 1px solid var(--card-border);
  border-radius: 38px;
  background:
    linear-gradient(140deg, rgba(255, 255, 255, 0.09), transparent 35%),
    rgba(16, 10, 24, 0.48);
  box-shadow:
    0 40px 100px rgba(0, 0, 0, 0.44),
    inset 0 1px 0 rgba(255, 255, 255, 0.11),
    0 0 80px rgba(213, 67, 127, 0.06);
  text-align: center;
  backdrop-filter: blur(20px) saturate(125%);
  -webkit-backdrop-filter: blur(20px) saturate(125%);
  transform-style: preserve-3d;
  will-change: transform;
}

.love-card::before,
.love-card::after {
  position: absolute;
  content: "";
  pointer-events: none;
}

.love-card::before {
  inset: 9px;
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: 30px;
}

.love-card::after {
  right: -55px;
  bottom: -72px;
  width: 210px;
  height: 210px;
  border-radius: 50%;
  background: rgba(239, 77, 139, 0.1);
  filter: blur(52px);
}

.card-shine {
  position: absolute;
  z-index: -1;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
    400px circle at var(--shine-x, 50%) var(--shine-y, 20%),
    rgba(255, 255, 255, 0.12),
    transparent 55%
  );
  opacity: 0.7;
}

.love-card.heart-gate {
  width: min(94vw, 480px);
  max-height: none;
  padding: 0;
  overflow: visible;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.love-card.heart-gate::before,
.love-card.heart-gate::after,
.love-card.heart-gate .card-shine {
  display: none;
}

.love-card.heart-gate .heart-stage {
  width: min(90vw, 430px);
  margin: 0 auto;
}

.love-card__header,
.promise,
.love-card__footer {
  display: flex;
  align-items: center;
  justify-content: center;
}

.love-card__header {
  gap: 13px;
  color: rgba(255, 232, 242, 0.58);
}

.love-card__header p {
  margin: 0;
  font-size: 0.64rem;
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
}

.ornament-line {
  width: 38px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 181, 208, 0.65));
}

.ornament-line:last-child {
  transform: rotate(180deg);
}

.anniversary {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 9px;
  margin: clamp(14px, 2.4vh, 24px) 0 0;
  color: var(--muted);
}

.anniversary span {
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.anniversary strong {
  color: #ffe1ed;
  font-family: "Italiana", serif;
  font-size: clamp(1.1rem, 2.2vw, 1.35rem);
  font-weight: 400;
  letter-spacing: 0.12em;
}

.couple-name {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(12px, 3vw, 25px);
  margin: 5px 0 0;
  color: #fff9fc;
  font-family: "Italiana", serif;
  font-size: clamp(3.2rem, 9vw, 5.25rem);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: 0.035em;
  text-shadow: 0 8px 34px rgba(255, 97, 154, 0.16);
}

.couple-name em {
  position: relative;
  top: -2px;
  color: var(--rose-bright);
  font-size: 0.43em;
  font-style: italic;
  text-shadow: 0 0 20px rgba(255, 93, 151, 0.5);
}

.love-note {
  margin: 12px auto 0;
  color: var(--muted);
  font-family: "Italiana", serif;
  font-size: clamp(0.96rem, 2.6vw, 1.12rem);
  letter-spacing: 0.045em;
}

.heart-stage {
  position: relative;
  display: block;
  width: min(72vw, 335px);
  aspect-ratio: 1.17;
  margin: clamp(5px, 1vh, 11px) auto 0;
  padding: 0;
  border: 0;
  outline: 0;
  background: transparent;
  cursor: pointer;
  isolation: isolate;
  -webkit-tap-highlight-color: transparent;
  transform-style: preserve-3d;
}

.heart-stage:focus-visible {
  border-radius: 50%;
  outline: 2px solid rgba(255, 166, 200, 0.88);
  outline-offset: 5px;
}

#pinkboard {
  position: absolute;
  z-index: 2;
  inset: 0;
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 14px rgba(255, 69, 138, 0.22));
}

.heart-core {
  position: absolute;
  z-index: 1;
  top: 48%;
  left: 50%;
  width: 79px;
  height: 79px;
  border-radius: 20px 8px 20px 8px;
  background: linear-gradient(140deg, #ff7eaa 5%, #ff3f80 48%, #bd2e74 100%);
  box-shadow:
    0 0 20px rgba(255, 84, 143, 0.54),
    0 0 52px rgba(255, 62, 130, 0.3),
    inset 7px 7px 17px rgba(255, 255, 255, 0.14);
  transform: translate(-50%, -42%) rotate(45deg);
  animation: core-beat 2.1s ease-in-out infinite;
}

.heart-core::before,
.heart-core::after {
  position: absolute;
  width: 79px;
  height: 79px;
  border-radius: 50%;
  background: inherit;
  content: "";
}

.heart-core::before {
  top: -39px;
  left: 0;
}

.heart-core::after {
  top: 0;
  left: -39px;
}

.heart-stage__hint {
  position: absolute;
  z-index: 5;
  right: 0;
  bottom: 18px;
  left: 0;
  color: rgba(255, 221, 234, 0.46);
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(5px);
  transition: opacity 300ms ease, transform 300ms ease;
}

.heart-progress {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin: -23px auto 0;
  color: rgba(255, 230, 240, 0.48);
  text-transform: uppercase;
}

.heart-progress__hint {
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.14em;
}

.heart-progress__count {
  min-width: 42px;
  color: rgba(255, 170, 205, 0.76);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.1em;
}

.heart-stage:hover .heart-stage__hint,
.heart-stage:focus-visible .heart-stage__hint {
  opacity: 1;
  transform: translateY(0);
}

.orbit {
  position: absolute;
  z-index: 3;
  top: 48%;
  left: 50%;
  width: 72%;
  height: 43%;
  border: 1px solid rgba(255, 167, 203, 0.16);
  border-radius: 50%;
  pointer-events: none;
}

.orbit i {
  position: absolute;
  top: 50%;
  left: -3px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #ffd5e5;
  box-shadow: 0 0 10px #ff8eb7, 0 0 20px rgba(255, 103, 158, 0.8);
}

.orbit--one {
  transform: translate(-50%, -50%) rotate(-10deg);
  animation: orbit-one 8s linear infinite;
}

.orbit--two {
  width: 63%;
  height: 37%;
  transform: translate(-50%, -50%) rotate(22deg);
  animation: orbit-two 6s linear infinite reverse;
}

.promise {
  gap: 10px;
  margin-top: -4px;
  color: rgba(255, 237, 245, 0.77);
}

.promise p {
  margin: 0;
  font-family: "Italiana", serif;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
}

.promise__spark {
  color: var(--rose-bright);
  font-size: 0.58rem;
  animation: twinkle 2s ease-in-out infinite alternate;
}

.promise__spark:last-child {
  animation-delay: -1s;
}

.love-card__footer {
  gap: 10px;
  margin-top: clamp(15px, 2.5vh, 25px);
  color: rgba(255, 232, 241, 0.3);
  font-size: 0.55rem;
  font-weight: 500;
  letter-spacing: 0.17em;
  text-transform: uppercase;
}

.message-ending .promise {
  margin-top: -4px;
}

.mini-heart {
  color: var(--rose);
  font-size: 0.65rem;
  text-shadow: 0 0 9px rgba(255, 90, 151, 0.7);
}

.motion-hint {
  position: absolute;
  z-index: 4;
  right: 28px;
  bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  color: rgba(255, 255, 255, 0.27);
  font-size: 0.58rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.motion-hint span {
  width: 21px;
  height: 32px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
}

.motion-hint span::after {
  display: block;
  width: 2px;
  height: 5px;
  margin: 6px auto 0;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.5);
  content: "";
  animation: mouse-dot 1.8s ease-in-out infinite;
}

.letter-modal[hidden] {
  display: none;
}

.letter-modal {
  position: fixed;
  z-index: 40;
  inset: 0;
  display: grid;
  padding: 22px;
  overflow: hidden;
  place-items: center;
}

.letter-modal__backdrop {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  padding: 0;
  border: 0;
  background:
    radial-gradient(circle at 50% 42%, rgba(167, 53, 111, 0.2), transparent 38%),
    rgba(5, 3, 10, 0.76);
  opacity: 0;
  cursor: default;
  backdrop-filter: blur(13px);
  -webkit-backdrop-filter: blur(13px);
  transition: opacity 500ms ease;
}

.letter-modal.is-open .letter-modal__backdrop {
  opacity: 1;
}

.letter-shell {
  position: relative;
  width: min(92vw, 540px);
  height: min(78svh, 640px);
  perspective: 1300px;
  transform: translateY(26px) scale(0.94);
  opacity: 0;
  transition:
    opacity 500ms ease,
    transform 700ms cubic-bezier(0.22, 1, 0.36, 1);
}

.letter-modal.is-open .letter-shell {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.pink-envelope {
  position: absolute;
  z-index: 1;
  right: 3%;
  bottom: 0;
  left: 3%;
  height: 245px;
  filter: drop-shadow(0 30px 45px rgba(28, 3, 18, 0.44));
  transform: translateY(22px) scale(0.94);
  transform-origin: bottom;
  transform-style: preserve-3d;
  opacity: 0;
}

.letter-modal.is-open .pink-envelope {
  animation: envelope-arrive 650ms 120ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.pink-envelope__back,
.pink-envelope__front,
.pink-envelope__flap {
  position: absolute;
  inset: 0;
  border-radius: 18px;
}

.pink-envelope__back {
  border: 1px solid rgba(255, 255, 255, 0.32);
  background: linear-gradient(145deg, #ef88af, #c94d82);
}

.pink-envelope__flap {
  z-index: 3;
  height: 62%;
  border-radius: 18px 18px 8px 8px;
  background: linear-gradient(165deg, #ffb0ca 0%, #e36b9b 75%);
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  transform-origin: top;
  backface-visibility: hidden;
  transition: transform 820ms 430ms cubic-bezier(0.22, 1, 0.36, 1);
}

.letter-modal.is-open .pink-envelope__flap {
  transform: rotateX(178deg);
}

.pink-envelope__front {
  z-index: 4;
  background:
    linear-gradient(32deg, #d9558a 49%, transparent 50%) left / 51% 100% no-repeat,
    linear-gradient(-32deg, #c7447a 49%, transparent 50%) right / 51% 100% no-repeat;
  pointer-events: none;
}

.pink-envelope__seal {
  position: absolute;
  z-index: 6;
  top: 48%;
  left: 50%;
  display: grid;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.48);
  border-radius: 50%;
  color: #fff0f6;
  background: linear-gradient(145deg, #e85d94, #b93470);
  box-shadow:
    0 8px 20px rgba(94, 14, 53, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.3);
  place-items: center;
  transform: translate(-50%, -50%) scale(1);
  transition:
    opacity 260ms 480ms ease,
    transform 420ms 420ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

.letter-modal.is-open .pink-envelope__seal {
  opacity: 0;
  transform: translate(-50%, -50%) scale(1.5) rotate(18deg);
}

.night-letter {
  position: absolute;
  z-index: 2;
  top: 6%;
  left: 5%;
  width: 90%;
  min-height: 82%;
  max-height: 88%;
  padding: clamp(32px, 6vw, 50px) clamp(25px, 6vw, 50px) 32px;
  overflow: auto;
  border: 1px solid rgba(255, 255, 255, 0.74);
  border-radius: 28px;
  color: #6d2946;
  background:
    linear-gradient(140deg, rgba(255, 255, 255, 0.62), transparent 36%),
    radial-gradient(circle at 90% 12%, rgba(255, 136, 176, 0.34), transparent 28%),
    linear-gradient(155deg, #fff4f8 0%, #ffdce8 54%, #ffc1d7 100%);
  box-shadow:
    0 35px 80px rgba(38, 3, 22, 0.42),
    inset 0 1px 0 rgba(255, 255, 255, 0.9);
  text-align: center;
  transform: translateY(33%) scale(0.84) rotateX(-10deg);
  transform-origin: bottom;
  opacity: 0;
  backface-visibility: hidden;
  will-change: transform, opacity, clip-path;
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.night-letter::-webkit-scrollbar {
  display: none;
}

.night-letter::before,
.night-letter::after {
  position: absolute;
  color: rgba(195, 63, 114, 0.18);
  font-family: "Italiana", serif;
  font-size: 4.5rem;
  line-height: 1;
  content: "♥";
}

.night-letter::before {
  top: 16px;
  left: 18px;
  transform: rotate(-18deg);
}

.night-letter::after {
  right: 16px;
  bottom: 8px;
  transform: rotate(16deg);
}

.letter-modal.is-open .night-letter {
  animation: letter-rise 1s 650ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.night-letter__content {
  opacity: 0;
  transform: translateY(10px);
}

.letter-modal.is-open .night-letter__content {
  animation: letter-content-in 480ms 1.58s ease forwards;
}

.letter-close {
  position: absolute;
  z-index: 5;
  top: 13px;
  right: 15px;
  display: grid;
  width: 34px;
  height: 34px;
  padding: 0 0 3px;
  border: 1px solid rgba(121, 36, 72, 0.13);
  border-radius: 50%;
  color: rgba(106, 32, 64, 0.58);
  background: rgba(255, 255, 255, 0.42);
  font-size: 1.35rem;
  line-height: 1;
  place-items: center;
  cursor: pointer;
  opacity: 0;
  transition: color 200ms ease, background 200ms ease, transform 200ms ease;
}

.letter-modal.is-open .letter-close {
  animation: letter-content-in 350ms 1.55s ease forwards;
}

.letter-close:hover,
.letter-close:focus-visible {
  color: #8f2d58;
  background: rgba(255, 255, 255, 0.78);
  transform: rotate(6deg) scale(1.05);
}

.letter-close:focus-visible {
  outline: 2px solid rgba(171, 54, 106, 0.42);
  outline-offset: 2px;
}

.night-letter__eyebrow {
  margin: 0 0 8px;
  color: rgba(128, 44, 78, 0.56);
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

.night-letter h2 {
  margin: 0;
  color: #9e3564;
  font-family: "Italiana", serif;
  font-size: clamp(2.6rem, 9vw, 4.1rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.02em;
  text-shadow: 0 8px 25px rgba(181, 57, 108, 0.13);
}

.night-letter__ornament {
  display: block;
  width: 74%;
  margin: 16px auto 18px;
  color: #d9558a;
  font-size: 0.72rem;
}

.night-letter__ornament::before,
.night-letter__ornament::after {
  display: inline-block;
  width: calc(50% - 20px);
  height: 1px;
  margin: 0 8px 3px;
  background: linear-gradient(90deg, transparent, rgba(188, 67, 115, 0.35));
  content: "";
}

.night-letter__ornament::after {
  transform: rotate(180deg);
}

.night-letter__message {
  min-height: 200px;
  margin: 0;
  color: #6e304a;
  font-family: "DM Sans", sans-serif;
  font-size: clamp(0.88rem, 2.8vw, 1rem);
  font-weight: 400;
  line-height: 1.82;
  letter-spacing: 0.018em;
  text-align: left;
}

.typing-caret {
  display: inline-block;
  width: 1px;
  height: 1.05em;
  margin-left: 2px;
  background: #bd4778;
  vertical-align: -2px;
  animation: caret-blink 700ms steps(1) infinite;
}

.typing-caret.is-done {
  display: none;
}

.night-letter__signature {
  position: relative;
  z-index: 1;
  margin: 19px 0 0;
  color: rgba(112, 40, 70, 0.65);
  font-family: "Italiana", serif;
  font-size: 0.88rem;
  font-style: italic;
  letter-spacing: 0.04em;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 500ms ease, transform 500ms ease;
}

.letter-modal.is-message-complete .night-letter__signature {
  opacity: 1;
  transform: translateY(0);
}

.night-letter__signature span {
  margin-left: 4px;
  color: #d84d85;
}

.night-letter__signature strong {
  display: block;
  margin-top: 7px;
  color: #a33c68;
  font-family: "DM Sans", sans-serif;
  font-size: 0.65rem;
  font-style: normal;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.cursor-heart {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  pointer-events: none;
  color: var(--rose-bright);
  font-family: serif;
  font-size: 11px;
  line-height: 1;
  text-shadow: 0 0 8px rgba(255, 97, 158, 0.85);
  transform: translate(-50%, -50%);
  will-change: transform, opacity;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@keyframes core-beat {
  0%,
  100% { transform: translate(-50%, -42%) rotate(45deg) scale(0.94); }
  12% { transform: translate(-50%, -42%) rotate(45deg) scale(1.02); }
  22% { transform: translate(-50%, -42%) rotate(45deg) scale(0.96); }
  34% { transform: translate(-50%, -42%) rotate(45deg) scale(1.06); }
  48% { transform: translate(-50%, -42%) rotate(45deg) scale(0.94); }
}

@keyframes orbit-one {
  to { transform: translate(-50%, -50%) rotate(350deg); }
}

@keyframes orbit-two {
  to { transform: translate(-50%, -50%) rotate(382deg); }
}

@keyframes twinkle {
  from { opacity: 0.35; transform: scale(0.75) rotate(0); }
  to { opacity: 1; transform: scale(1.2) rotate(90deg); }
}

@keyframes mouse-dot {
  0% { opacity: 0; transform: translateY(0); }
  35% { opacity: 0.8; }
  100% { opacity: 0; transform: translateY(11px); }
}

@keyframes letter-rise {
  0% {
    opacity: 0;
    transform: translateY(33%) scale(0.84) rotateX(-10deg);
  }
  55% { opacity: 1; }
  100% {
    opacity: 1;
    transform: translateY(-5%) scale(1) rotateX(0);
  }
}

@keyframes envelope-arrive {
  0% {
    opacity: 0;
    transform: translateY(28px) scale(0.9);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes letter-content-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes letter-rise-mobile {
  0% {
    clip-path: inset(72% 0 0 round 23px);
    opacity: 0.28;
    transform: translateY(31%) scale(0.9) rotateX(-7deg);
  }
  46% {
    clip-path: inset(28% 0 0 round 23px);
    opacity: 1;
    transform: translateY(12%) scale(0.96) rotateX(-2deg);
  }
  78% {
    clip-path: inset(0 round 23px);
    transform: translateY(-7%) scale(1.012) rotateX(0);
  }
  100% {
    clip-path: inset(0 round 23px);
    opacity: 1;
    transform: translateY(-4%) scale(1) rotateX(0);
  }
}

@keyframes caret-blink {
  0%, 48% { opacity: 1; }
  49%, 100% { opacity: 0; }
}

@media (max-width: 700px) {
  .love-card {
    width: min(92vw, 500px);
    border-radius: 30px;
  }

  .love-card::before {
    border-radius: 23px;
  }

  .motion-hint {
    display: none;
  }

  .heart-stage {
    width: min(74vw, 310px);
  }

  .letter-modal {
    padding: 10px;
  }

  .letter-shell {
    width: 96vw;
    height: min(84svh, 650px);
  }

  .pink-envelope {
    right: 1%;
    bottom: 2%;
    left: 1%;
    height: 190px;
  }

  .pink-envelope__flap {
    height: 64%;
  }

  .pink-envelope__seal {
    top: 50%;
    width: 38px;
    height: 38px;
    font-size: 0.82rem;
  }

  .night-letter {
    top: 3%;
    left: 2.5%;
    width: 95%;
    min-height: 88%;
    max-height: 94%;
    padding: 34px 25px 25px;
    border-radius: 23px;
  }

  .night-letter__message {
    min-height: 245px;
    line-height: 1.72;
  }

  .letter-modal.is-open .night-letter {
    animation: letter-rise-mobile 1.15s 720ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
  }

  .letter-modal.is-open .night-letter__content {
    animation-delay: 1.72s;
  }

  .letter-modal.is-open .letter-close {
    animation-delay: 1.7s;
  }
}

@media (max-height: 760px) {
  .love-card {
    padding-top: 21px;
    padding-bottom: 18px;
  }

  .love-note {
    margin-top: 7px;
  }

  .heart-stage {
    width: min(61vh, 300px);
  }

  .love-card__footer {
    margin-top: 9px;
  }
}

@media (max-height: 610px) {
  .love-card__header,
  .love-card__footer,
  .heart-stage__hint {
    display: none;
  }

  .anniversary {
    margin-top: 0;
  }

  .heart-stage {
    width: min(53vh, 265px);
  }

  .letter-shell {
    height: 94svh;
  }

  .night-letter {
    top: 1%;
    min-height: 94%;
    max-height: 98%;
    padding-top: 28px;
  }

  .night-letter h2 {
    font-size: 2.35rem;
  }

  .night-letter__ornament {
    margin: 9px auto 11px;
  }

  .night-letter__message {
    min-height: 150px;
    font-size: 0.82rem;
    line-height: 1.55;
  }
}

@media (hover: none), (pointer: coarse) {
  .heart-stage__hint {
    opacity: 0.6;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .motion-hint {
    display: none;
  }

  .letter-modal.is-open .night-letter {
    animation: none;
    opacity: 1;
    transform: translateY(-5%) scale(1) rotateX(0);
  }

  .letter-modal.is-open .pink-envelope__flap {
    transform: rotateX(178deg);
  }

  .letter-modal.is-open .pink-envelope {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .night-letter__content,
  .letter-modal.is-open .letter-close {
    animation: none;
    opacity: 1;
    transform: none;
  }
}