:root {
  --ink: #fff2f6;
  --ink-dim: rgba(255, 231, 239, 0.68);
  --ink-faint: rgba(255, 231, 239, 0.42);
  --rose: #ff5c8a;
  --rose-soft: #ff9ec4;
  --gold: #ffd9a0;
  --line: rgba(255, 158, 196, 0.18);
  --card: rgba(255, 255, 255, 0.045);
  --serif: "Songti SC", "STSong", "SimSun", "Noto Serif CJK SC", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB",
          "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  --display: "Helvetica Neue", "Arial Black", Arial, var(--sans);
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  min-height: 100%;
  background: #150620;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.75;
  overflow-x: hidden;
}

/* ---------- background ---------- */

.sky {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(1100px 700px at 12% -8%, #6d1544 0%, transparent 62%),
    radial-gradient(900px 620px at 92% 8%, #3a1160 0%, transparent 60%),
    radial-gradient(1200px 900px at 50% 108%, #8c1f47 0%, transparent 58%),
    linear-gradient(178deg, #1b0726 0%, #2a0a2c 42%, #3d0d33 100%);
}

.sky::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.6px 1.6px at 18% 24%, rgba(255,255,255,.75), transparent),
    radial-gradient(1.3px 1.3px at 74% 16%, rgba(255,214,230,.65), transparent),
    radial-gradient(1.8px 1.8px at 42% 68%, rgba(255,255,255,.5), transparent),
    radial-gradient(1.2px 1.2px at 88% 78%, rgba(255,217,160,.6), transparent),
    radial-gradient(1.5px 1.5px at 8% 82%, rgba(255,255,255,.55), transparent),
    radial-gradient(1.2px 1.2px at 62% 44%, rgba(255,255,255,.45), transparent);
  animation: twinkle 6.5s ease-in-out infinite;
}

@keyframes twinkle {
  0%, 100% { opacity: .55; }
  50% { opacity: 1; }
}

#hearts {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}

/* ---------- layout ---------- */

main {
  position: relative;
  z-index: 2;
  max-width: 62rem;
  margin: 0 auto;
  padding: clamp(2.5rem, 8vw, 6rem) clamp(1.25rem, 5vw, 2.5rem) 2rem;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 10;
  padding: .7rem 1.1rem;
  background: var(--rose);
  color: #2a0413;
  border-radius: 0 0 .6rem 0;
  font-weight: 600;
  text-decoration: none;
}
.skip:focus { left: 0; }

/* ---------- hero ---------- */

.hero {
  text-align: center;
  padding-bottom: clamp(3rem, 9vw, 5.5rem);
}

.kicker {
  margin: 0 0 clamp(1.4rem, 4vw, 2.2rem);
  font-size: .82rem;
  letter-spacing: .34em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

.mark {
  display: flex;
  justify-content: center;
  gap: clamp(.15rem, 1.4vw, .6rem);
  font-family: var(--display);
  font-size: clamp(5.4rem, 26vw, 13rem);
  font-weight: 800;
  line-height: .86;
  letter-spacing: -.03em;
}

.mark span {
  background: linear-gradient(168deg, #fff 4%, var(--gold) 30%, var(--rose) 62%, #b3245c 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 .18em .55em rgba(255, 92, 138, .34));
  display: inline-block;
  animation: rise 1s cubic-bezier(.2, .8, .3, 1) backwards;
}
.mark span:nth-child(1) { animation-delay: .05s; }
.mark span:nth-child(2) { animation-delay: .18s; }
.mark span:nth-child(3) { animation-delay: .31s; }

@keyframes rise {
  from { opacity: 0; transform: translateY(.4em) scale(.9); }
  to { opacity: 1; transform: none; }
}

.vow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(.6rem, 2vw, 1.1rem);
  margin-top: clamp(.6rem, 2vw, 1.2rem);
}

.beat {
  width: clamp(1.5rem, 4.4vw, 2.4rem);
  height: auto;
  fill: var(--rose);
  filter: drop-shadow(0 0 .7rem rgba(255, 92, 138, .75));
  animation: beat 1.5s ease-in-out infinite;
  transform-origin: center;
}

@keyframes beat {
  0%, 100% { transform: scale(1); }
  14% { transform: scale(1.18); }
  28% { transform: scale(.98); }
  42% { transform: scale(1.12); }
  60% { transform: scale(1); }
}

.hero h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(2.4rem, 10.5vw, 5rem);
  font-weight: 600;
  letter-spacing: .16em;
  text-indent: .16em;
  color: #fff;
  text-shadow: 0 0 2.4rem rgba(255, 92, 138, .45);
}

.lede {
  max-width: 34rem;
  margin: clamp(1.4rem, 4vw, 2rem) auto 0;
  font-size: clamp(1rem, 3.6vw, 1.14rem);
  color: var(--ink-dim);
}

.hint {
  margin: clamp(1.8rem, 5vw, 2.6rem) auto 0;
  font-size: .86rem;
  color: var(--ink-faint);
  animation: fade 3.6s ease-in-out infinite;
}

@keyframes fade {
  0%, 100% { opacity: .45; }
  50% { opacity: 1; }
}

/* ---------- panels ---------- */

.panel {
  margin-top: clamp(3rem, 8vw, 5rem);
  padding: clamp(1.6rem, 4.5vw, 2.8rem);
  border: 1px solid var(--line);
  border-radius: 1.4rem;
  background:
    linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.015)),
    var(--card);
  backdrop-filter: blur(9px);
}

.panel h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.4rem, 4.6vw, 1.9rem);
  font-weight: 600;
  letter-spacing: .1em;
  text-align: center;
}

.panel-sub {
  margin: .55rem 0 0;
  font-size: .93rem;
  color: var(--ink-faint);
  text-align: center;
}

/* ---------- letters ---------- */

.letters {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 15rem), 1fr));
  gap: 1rem;
  margin-top: clamp(1.6rem, 4vw, 2.2rem);
}

.letter {
  padding: 1.5rem 1.3rem;
  border-left: 2px solid rgba(255, 92, 138, .45);
  border-radius: .5rem;
  background: rgba(20, 6, 30, .38);
  transition: transform .35s ease, border-color .35s ease, background .35s ease;
}

.letter:hover,
.letter:focus-within {
  transform: translateY(-5px);
  border-left-color: var(--rose-soft);
  background: rgba(38, 10, 44, .55);
}

.letter .line {
  margin: 0;
  font-family: var(--serif);
  font-size: 1.06rem;
  line-height: 2.05;
  color: var(--ink-dim);
}

.letter .line:first-child { color: #fff; }
.letter .line:last-child { color: var(--ink-faint); font-size: .95rem; }

/* ---------- love quotes ---------- */

.quote {
  max-width: 36rem;
  min-height: 8.5rem;
  margin: clamp(1.6rem, 4vw, 2.2rem) auto 0;
  text-align: center;
}

.quote blockquote {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.2rem, 4.6vw, 1.6rem);
  line-height: 1.9;
  color: #fff;
  text-shadow: 0 0 1.4rem rgba(255, 92, 138, .35);
}

.quote figcaption {
  margin-top: .8rem;
  font-size: .9rem;
  color: var(--ink-faint);
}

.quote.pop { animation: pop .6s cubic-bezier(.2, .9, .3, 1); }

.quote-actions {
  display: flex;
  justify-content: center;
  margin-top: 1.2rem;
}

.ghost {
  padding: .7rem 1.5rem;
  border: 1px solid rgba(255, 158, 196, .45);
  border-radius: .8rem;
  background: transparent;
  color: var(--rose-soft);
  font-family: inherit;
  font-size: .95rem;
  letter-spacing: .06em;
  cursor: pointer;
  transition: background .2s ease, color .2s ease;
}

.ghost:hover { background: rgba(255, 92, 138, .14); color: #fff; }
.ghost:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

/* ---------- countdown ---------- */

.clock {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: clamp(.25rem, 1.2vw, .6rem);
  margin-top: clamp(1.6rem, 4vw, 2.2rem);
}

.unit {
  min-width: clamp(3.6rem, 15vw, 6.4rem);
  padding: .85rem .4rem .65rem;
  border: 1px solid var(--line);
  border-radius: .9rem;
  background: rgba(18, 5, 26, .5);
  text-align: center;
}

.num {
  display: block;
  font-family: var(--display);
  font-size: clamp(1.5rem, 6.6vw, 2.9rem);
  font-weight: 700;
  line-height: 1.1;
  font-variant-numeric: tabular-nums;
  color: #fff;
}

.lab {
  display: block;
  margin-top: .25rem;
  font-size: .78rem;
  letter-spacing: .16em;
  color: var(--ink-faint);
}

.sep {
  font-family: var(--display);
  font-size: clamp(1.1rem, 4vw, 2rem);
  color: rgba(255, 92, 138, .5);
  padding-bottom: 1rem;
}

.target {
  margin: 1.3rem 0 0;
  text-align: center;
  font-size: .9rem;
  color: var(--ink-faint);
}

/* ---------- say ---------- */

.say {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  justify-content: center;
  margin-top: clamp(1.6rem, 4vw, 2.2rem);
}

.say input {
  flex: 1 1 14rem;
  max-width: 20rem;
  padding: .85rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: .8rem;
  background: rgba(12, 3, 20, .6);
  color: var(--ink);
  font-family: inherit;
  font-size: 1rem;
}

.say input::placeholder { color: var(--ink-faint); }

.say input:focus {
  outline: 2px solid var(--rose);
  outline-offset: 2px;
  border-color: transparent;
}

.say button {
  padding: .85rem 1.7rem;
  border: 0;
  border-radius: .8rem;
  background: linear-gradient(135deg, var(--rose) 0%, #d62a68 100%);
  color: #fff;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .06em;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
}

.say button:hover { filter: brightness(1.08); transform: translateY(-2px); box-shadow: 0 .7rem 1.6rem rgba(255, 92, 138, .32); }
.say button:active { transform: translateY(0); }
.say button:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

.spoken {
  margin: clamp(1.8rem, 5vw, 2.6rem) 0 0;
  text-align: center;
  font-family: var(--serif);
  font-size: clamp(1.5rem, 6.4vw, 2.5rem);
  font-weight: 600;
  letter-spacing: .05em;
  color: #fff;
  text-shadow: 0 0 1.8rem rgba(255, 92, 138, .5);
  overflow-wrap: anywhere;
}

.spoken .to { color: var(--rose-soft); }
.spoken .words { margin-left: -.05em; }

.spoken.pop { animation: pop .6s cubic-bezier(.2, .9, .3, 1); }

@keyframes pop {
  0% { opacity: 0; transform: scale(.86); }
  60% { opacity: 1; transform: scale(1.04); }
  100% { transform: scale(1); }
}

/* ---------- footer ---------- */

.foot {
  position: relative;
  z-index: 2;
  padding: clamp(2.5rem, 7vw, 4rem) 1.25rem clamp(2rem, 6vw, 3rem);
  text-align: center;
  border-top: 1px solid var(--line);
  margin-top: clamp(3rem, 8vw, 5rem);
}

.foot p { margin: 0; }

.foot p:first-child {
  font-family: var(--serif);
  font-size: 1.05rem;
  letter-spacing: .3em;
  text-indent: .3em;
  color: var(--rose-soft);
}

.small {
  margin-top: .6rem !important;
  font-size: .86rem;
  color: var(--ink-faint);
}

.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;
}

@media (max-width: 30rem) {
  .sep { display: none; }
  .clock { gap: .5rem; }
  .unit { min-width: calc(50% - .3rem); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  #hearts { display: none; }
}