/*
 * Tohfa — Whole Website Gift (Boyfriend Day family).
 * Candy Scrapbook design system: pale-blue/white candy stripes, slate ink,
 * raspberry script, dusty-pink stars, white polaroids with pink washi tape,
 * a blush final letter and the kawaii bunny throughout.
 * Fonts (Pacifico, Caveat, Inter) are linked from the page head.
 * Design media: /assets/bfday-gift/ (decoded at boot from assets/bfday-gift/).
 */
:root {
  --stripes: #CFE6F6;
  --paper: #FFFFFF;
  --ink: #5A6B7A;
  --ink-deep: #44515E;
  --raspberry: #D63D6C;
  --star: #E08A9B;
  --blush: #F9DFE4;
  --blush-deep: #F3C9D2;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background-color: var(--stripes);
  background-image: url('/assets/bfday-gift/stripe-tile.png');
  background-repeat: repeat;
  background-size: 192px 96px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; }

/* ================= SCENE 1 · THE COVER ================= */
.cover {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--stripes);
  background-image: url('/assets/bfday-gift/stripe-tile.png');
  background-repeat: repeat;
  background-size: 192px 96px;
  transition: transform .75s var(--ease), opacity .75s var(--ease), visibility 0s .75s;
  overflow: hidden;
}

.cover.away {
  transform: translateY(-102%);
  opacity: .35;
  visibility: hidden;
  pointer-events: none;
}

.cover-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 28px 20px 40px;
  max-width: 560px;
}

.cover-headline {
  font-family: 'Pacifico', cursive;
  font-weight: 400;
  font-size: clamp(2.3rem, 9vw, 4rem);
  line-height: 1.25;
  color: var(--raspberry);
  text-shadow: 0 2px 0 rgba(255, 255, 255, .75);
  margin-bottom: 10px;
  text-wrap: balance;
}

.cover-name {
  font-family: 'Caveat', cursive;
  font-size: clamp(1.4rem, 5.5vw, 1.9rem);
  color: var(--ink-deep);
  margin-bottom: 26px;
}

.cover-name strong { color: var(--raspberry); font-weight: 700; }

.cover-stars {
  position: absolute;
  width: min(46vw, 300px);
  opacity: .55;
  pointer-events: none;
  z-index: 1;
}
/* the scatter is denser at its top — keep the top-left cluster quieter so
   the two corners read balanced */
.cover-stars.s1 { top: -30px; left: -40px; opacity: .3; }
.cover-stars.s2 { bottom: -40px; right: -50px; transform: scaleX(-1); }

.bunny-btn {
  position: relative;
  display: inline-block;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 18px;
  min-width: 96px;
  min-height: 96px;
  -webkit-tap-highlight-color: transparent;
  animation: bunny-bob 2.6s ease-in-out infinite;
}

.bunny-btn img { width: clamp(150px, 42vw, 230px); display: block; filter: drop-shadow(0 10px 18px rgba(90, 107, 122, .25)); }

@keyframes bunny-bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}

.click-tag {
  position: absolute;
  top: 6px;
  right: -14px;
  font-family: 'Caveat', cursive;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--paper);
  background: var(--raspberry);
  padding: 4px 14px 6px;
  border-radius: 999px 999px 999px 4px;
  transform: rotate(6deg);
  box-shadow: 0 4px 10px rgba(214, 61, 108, .35);
  animation: tag-pulse 1.8s ease-in-out infinite;
}

@keyframes tag-pulse {
  0%, 100% { transform: rotate(6deg) scale(1); }
  50% { transform: rotate(6deg) scale(1.08); }
}

.cover-hint {
  margin-top: 22px;
  font-size: .95rem;
  letter-spacing: .04em;
  color: var(--ink-deep);
  opacity: .8;
}

/* ======================== the gift itself ======================== */
.gift { display: none; }
.gift.open { display: block; }

.scene {
  padding: 72px 20px;
  max-width: 640px;
  margin: 0 auto;
  position: relative;
}

.scene-head {
  font-family: 'Pacifico', cursive;
  font-weight: 400;
  font-size: clamp(1.7rem, 6.5vw, 2.4rem);
  color: var(--raspberry);
  text-align: center;
  margin-bottom: 12px;
  text-shadow: 0 2px 0 rgba(255, 255, 255, .7);
}

.scene-head.caps { letter-spacing: .02em; }

.scene-sub {
  text-align: center;
  font-family: 'Caveat', cursive;
  font-size: 1.2rem;
  color: var(--ink-deep);
  opacity: .85;
  margin-bottom: 26px;
}

/* ================= SCENE 2 · THE WORD LIST ================= */
.words-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
  margin-top: 26px;
}

.polaroid {
  position: relative;
  background: var(--paper);
  padding: 14px 14px 20px;
  border-radius: 6px;
  box-shadow: 0 12px 28px rgba(90, 107, 122, .22);
  transform: rotate(-3deg);
  width: min(300px, 78vw);
}

.polaroid img:not(.tape) {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 3px;
  background: var(--blush);
}

.polaroid img.ph-bunny { object-fit: contain; padding: 18px; }

.tape {
  position: absolute;
  width: 118px;
  top: -22px;
  left: 50%;
  transform: translateX(-50%) rotate(-4deg);
  opacity: .95;
  pointer-events: none;
}

.word-list {
  list-style: none;
  text-align: center;
  /* the lines set the height — never clip, never a fixed min-height that
     cuts the tail of a long list */
  height: auto;
  overflow: visible;
}

.word-line {
  font-family: 'Caveat', cursive;
  font-size: clamp(1.6rem, 6.5vw, 2.2rem);
  font-weight: 500;
  color: var(--ink-deep);
  line-height: 1.55;
  opacity: 0;
  min-height: 1.55em;
}

.word-line.typing, .word-line.typed { opacity: 1; }
.word-line.typing::after {
  content: '▌';
  color: var(--raspberry);
  animation: caret 1s steps(1) infinite;
}
.word-line.typed::after { content: ''; }

@keyframes caret { 50% { opacity: 0; } }

/* ================= SCENE 3 · THE GALLERY ================= */
.carousel {
  display: flex;
  gap: 22px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 34px 24px 26px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.carousel::-webkit-scrollbar { display: none; }

.flip { flex: 0 0 min(260px, 72vw); scroll-snap-align: center; perspective: 900px; }

.flip-btn {
  display: block;
  width: 100%;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  min-height: 320px;
  transform: rotate(var(--tilt, 0deg));
  transition: transform .35s var(--ease);
}
.flip-btn:active { transform: rotate(var(--tilt, 0deg)) scale(.985); }

.flip-inner {
  position: relative;
  display: block;
  width: 100%;
  transform-style: preserve-3d;
  transition: transform .6s var(--ease);
}

.flip.flipped .flip-inner { transform: rotateY(180deg); }

.face {
  display: block;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  background: var(--paper);
  border-radius: 6px;
  box-shadow: 0 12px 26px rgba(90, 107, 122, .22);
}

.face.front { position: relative; padding: 12px 12px 16px; }

.face.front img:not(.tape) {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 3px;
}

.face.front .ph {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 3px;
  background:
    radial-gradient(120% 120% at 30% 20%, var(--blush) 0%, var(--blush-deep) 70%);
  display: flex;
  align-items: center;
  justify-content: center;
}

.ph-heart { font-size: 3rem; color: var(--raspberry); opacity: .7; }

.face.front .cap {
  display: block;
  font-family: 'Caveat', cursive;
  font-size: 1.25rem;
  color: var(--ink-deep);
  text-align: center;
  margin-top: 12px;
  min-height: 1.6em;
}

.face.back {
  position: absolute;
  inset: 0;
  transform: rotateY(180deg);
  padding: 26px 20px;
  background: var(--blush);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
}

.back-note {
  font-family: 'Caveat', cursive;
  font-size: 1.45rem;
  line-height: 1.45;
  color: var(--ink-deep);
  text-align: center;
}

.back-star { color: var(--star); font-size: 1.2rem; }

.dots { display: flex; justify-content: center; gap: 9px; margin-top: 4px; }
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--star); opacity: .35; transition: opacity .25s, transform .25s; }
.dot.on { opacity: 1; transform: scale(1.25); }

/* ================= SCENE 4 · THE SONG ================= */
.yt-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 14px 30px rgba(90, 107, 122, .25);
  margin-bottom: 22px;
  background: #0e1520;
}
.yt-wrap iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }

.song-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--paper);
  border-radius: 18px;
  padding: 18px 16px;
  box-shadow: 0 14px 30px rgba(90, 107, 122, .22);
  border: 2px solid var(--blush-deep);
}

.disc {
  flex: 0 0 62px;
  width: 62px;
  height: 62px;
  border-radius: 50%;
  background: conic-gradient(var(--raspberry), var(--star), var(--raspberry));
  display: flex;
  align-items: center;
  justify-content: center;
  animation: spin 4.5s linear infinite;
}

.disc-heart {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: var(--paper);
  color: var(--raspberry);
  display: flex; align-items: center; justify-content: center;
  font-size: .85rem;
}

@keyframes spin { to { transform: rotate(360deg); } }

.song-meta { flex: 1 1 auto; min-width: 0; }
.song-title { font-family: 'Caveat', cursive; font-size: 1.5rem; font-weight: 700; color: var(--ink-deep); line-height: 1.15; }
.song-artist { font-size: .85rem; color: var(--ink); opacity: .85; margin: 2px 0 10px; }

.bar {
  height: 8px;
  border-radius: 99px;
  background: var(--blush);
  overflow: hidden;
}
.bar-fill {
  display: block;
  height: 100%;
  width: 0;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--star), var(--raspberry));
}
.bar-times {
  display: flex; justify-content: space-between;
  font-size: .72rem; color: var(--ink); opacity: .7;
  margin-top: 5px;
  font-variant-numeric: tabular-nums;
}

.heart-btn {
  flex: 0 0 52px;
  width: 52px; height: 52px;
  border-radius: 50%;
  border: 2px solid var(--blush-deep);
  background: var(--paper);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  -webkit-tap-highlight-color: transparent;
  transition: transform .2s var(--ease);
}
.heart-btn svg { width: 26px; height: 24px; fill: none; stroke: var(--raspberry); stroke-width: 2.4; transition: fill .25s; }
.heart-btn.loved svg { fill: var(--raspberry); }
.heart-btn.burst { animation: burst .45s var(--ease); }
@keyframes burst { 35% { transform: scale(1.25); } }

/* ================= SCENE 5 · THE BOUQUETS ================= */
.bouquets {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: clamp(8px, 3vw, 22px);
  margin-top: 30px;
}

.bqt {
  flex: 1 1 0;
  max-width: 170px;
  border: 0;
  background: transparent;
  cursor: pointer;
  padding: 12px 6px;
  -webkit-tap-highlight-color: transparent;
  transition: transform .3s var(--ease);
}
.bqt img { display: block; width: 100%; filter: drop-shadow(0 10px 16px rgba(90, 107, 122, .22)); }
.bqt:active { transform: scale(.96); }
.bqt-label {
  display: block;
  font-family: 'Caveat', cursive;
  font-size: 1.1rem;
  color: var(--ink-deep);
  margin-top: 8px;
  text-align: center;
}

.bnotes { position: relative; margin-top: 26px; }

.bnote {
  position: relative;
  background: var(--paper);
  border-radius: 14px;
  border: 2px dashed var(--star);
  padding: 26px 22px 20px;
  box-shadow: 0 14px 30px rgba(214, 61, 108, .18);
  max-width: 420px;
  margin: 0 auto;
}
.bnote.pop { animation: pop .4s var(--ease); }
@keyframes pop { 0% { transform: scale(.7); opacity: 0; } 100% { transform: scale(1); opacity: 1; } }

.bnote-text {
  font-family: 'Caveat', cursive;
  font-size: 1.5rem;
  line-height: 1.5;
  color: var(--ink-deep);
  text-align: center;
}
.bnote-from {
  font-size: .8rem;
  color: var(--ink);
  opacity: .75;
  text-align: center;
  margin-top: 10px;
}
.bnote-close {
  position: absolute;
  top: 6px; right: 10px;
  width: 40px; height: 40px;
  border: 0;
  background: transparent;
  font-size: 1.5rem;
  color: var(--raspberry);
  cursor: pointer;
}

/* ================= SCENE 6 · THE FINAL LETTER ================= */
.letter-scene {
  background: var(--blush);
  border-radius: 34px 34px 0 0;
  max-width: none;
  margin-top: 46px;
  padding: 64px 20px 40px;
  overflow: hidden;
  position: relative;
}

.letter-scene > * { max-width: 560px; margin-left: auto; margin-right: auto; }

.pair {
  display: block;
  width: min(320px, 74vw);
  margin: 0 auto 26px;
  filter: drop-shadow(0 10px 18px rgba(214, 61, 108, .18));
}

.letter-card {
  position: relative;
  background: var(--paper);
  border-radius: 8px;
  padding: 40px 26px 30px;
  box-shadow: 0 16px 34px rgba(214, 61, 108, .16);
  transform: rotate(-1.2deg);
}

.letter-card .tape { top: -20px; transform: translateX(-50%) rotate(3deg); }

.letter-text {
  font-family: 'Caveat', cursive;
  font-size: clamp(1.35rem, 5vw, 1.6rem);
  line-height: 1.6;
  color: var(--ink-deep);
}

.letter-sign {
  font-family: 'Pacifico', cursive;
  font-size: 1.35rem;
  color: var(--raspberry);
  text-align: right;
  margin-top: 18px;
}

.letter-date {
  font-size: .85rem;
  color: var(--ink);
  opacity: .75;
  text-align: right;
  margin-top: 4px;
}

.float-hearts { position: absolute; inset: 0; pointer-events: none; overflow: hidden; }

.fh {
  position: absolute;
  bottom: -30px;
  color: var(--raspberry);
  opacity: 0;
  font-size: var(--size, 16px);
  animation: float-up var(--dur, 9s) linear infinite;
  animation-delay: var(--delay, 0s);
}

@keyframes float-up {
  0% { transform: translateY(0) rotate(-8deg); opacity: 0; }
  12% { opacity: .55; }
  85% { opacity: .4; }
  100% { transform: translateY(-104vh) rotate(10deg); opacity: 0; }
}

.end-card {
  margin-top: 46px;
  text-align: center;
  font-size: .9rem;
  letter-spacing: .12em;
  color: var(--ink-deep);
  text-transform: lowercase;
}
.end-card a { color: var(--raspberry); text-decoration: none; border-bottom: 1px dotted var(--raspberry); }

/* ======================== reduced motion ======================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cover { transition: none; }
  .bunny-btn, .click-tag, .disc, .fh { animation: none; }
  .flip-inner { transition: none; }
  .word-line { opacity: 1; }
  .word-line.typing::after { content: ''; }
}

/* ======================== small screens ======================== */
@media (min-width: 560px) {
  .words-wrap { flex-direction: row; justify-content: center; }
  .word-list { text-align: left; }
}