/* ==========================================================================
   Everything layout/spacing/color-related lives as Tailwind utility classes
   in index.html. This file only holds what Tailwind utilities genuinely
   can't express: @keyframes definitions, a 3D flip that depends on a
   parent/child relationship, and a couple of masked/sequenced effects.
   ========================================================================== */

* {
  -webkit-tap-highlight-color: transparent;
  box-sizing: border-box;
}
html,
body {
  overscroll-behavior-y: none;
  -webkit-text-size-adjust: 100%;
}
button {
  touch-action: manipulation;
}

.no-scrollbar::-webkit-scrollbar {
  display: none;
}
.no-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* ---------- Keyframes (referenced via Tailwind's animate-[name_...] syntax) ---------- */

@keyframes twinkle {
  0%,
  100% {
    opacity: 0.25;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.3);
  }
}

@keyframes floatUp {
  0% {
    transform: translateY(0) translateX(0) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 0.95;
  }
  90% {
    opacity: 0.7;
  }
  100% {
    transform: translateY(-620px) translateX(var(--drift, 20px)) rotate(20deg);
    opacity: 0;
  }
}

@keyframes popOut {
  0% {
    transform: scale(1) translateY(0);
    opacity: 1;
  }
  100% {
    transform: scale(1.6) translateY(-40px);
    opacity: 0;
  }
}

@keyframes confettiFall {
  to {
    transform: translateY(110vh) rotate(600deg);
    opacity: 0.9;
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes glowShimmer {
  0%,
  100% {
    text-shadow:
      0 0 18px rgba(255, 158, 201, 0.55),
      0 0 34px rgba(195, 178, 255, 0.4);
  }
  50% {
    text-shadow:
      0 0 26px rgba(255, 255, 255, 0.9),
      0 0 46px rgba(255, 158, 201, 0.6);
  }
}

@keyframes cloudFloat {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-10px) rotate(-3deg);
  }
}

@keyframes glowPulse {
  0%,
  100% {
    opacity: 0.55;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 0.95;
    transform: translate(-50%, -50%) scale(1.12);
  }
}

@keyframes badgeFloat {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-5px);
  }
}

@keyframes badgeDot {
  0%,
  100% {
    opacity: 0.5;
    transform: scale(0.85);
  }
  50% {
    opacity: 1;
    transform: scale(1.15);
  }
}

@keyframes ringPulse {
  0% {
    opacity: 0.8;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(1.4);
  }
}

@keyframes btnBreathe {
  0%,
  100% {
    box-shadow:
      0 10px 28px rgba(242, 103, 159, 0.4),
      inset 0 1px 0 rgba(255, 255, 255, 0.7);
  }
  50% {
    box-shadow:
      0 14px 34px rgba(242, 103, 159, 0.55),
      inset 0 1px 0 rgba(255, 255, 255, 0.7);
  }
}

@keyframes shineSweep {
  0% {
    left: -60%;
  }
  45%,
  100% {
    left: 130%;
  }
}

@keyframes heartWiggle {
  0%,
  100% {
    transform: scale(1) rotate(0deg);
  }
  25% {
    transform: scale(1.15) rotate(-8deg);
  }
  50% {
    transform: scale(1) rotate(0deg);
  }
  75% {
    transform: scale(1.15) rotate(8deg);
  }
}

@keyframes arrowSlide {
  0%,
  100% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(4px);
  }
}

@keyframes spinSlow {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes navBounceRight {
  0%,
  100% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(4px);
  }
}

@keyframes navBounceLeft {
  0%,
  100% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(-4px);
  }
}

@keyframes stampDown {
  0% {
    transform: rotate(-18deg) scale(2.4);
    opacity: 0;
  }
  70% {
    transform: rotate(-12deg) scale(0.92);
    opacity: 1;
  }
  85% {
    transform: rotate(-12deg) scale(1.08);
  }
  100% {
    transform: rotate(-12deg) scale(1);
    opacity: 1;
  }
}

@keyframes stampGlowPop {
  0% {
    opacity: 0;
    transform: scale(0.4);
  }
  40% {
    opacity: 0.9;
    transform: scale(1.15);
  }
  100% {
    opacity: 0;
    transform: scale(1.5);
  }
}

@keyframes cardShake {
  0% {
    transform: translate(0, 0);
  }
  25% {
    transform: translate(-2px, 1px);
  }
  50% {
    transform: translate(2px, -1px);
  }
  75% {
    transform: translate(-1px, 1px);
  }
  100% {
    transform: translate(0, 0);
  }
}

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

/* ---------- Envelope 3D flip (needs a real parent/child relationship + perspective) ---------- */

.envelope-wrap {
  perspective: 1200px;
}

.envelope {
  position: relative;
  cursor: pointer;
}

.envelope .flap {
  transform-origin: top center;
  transition: transform 0.7s cubic-bezier(0.68, -0.4, 0.27, 1.4);
  z-index: 30;
}
.envelope[data-open="true"] .flap {
  transform: rotateX(180deg);
  z-index: 5;
}

.envelope .letter-paper {
  opacity: 0;
  transform: scale(0.85);
  transition:
    top 0.6s cubic-bezier(0.2, 0.8, 0.2, 1),
    transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1),
    opacity 0.4s ease;
  pointer-events: none;
}
.envelope[data-open="true"] .letter-paper {
  top: -78%;
  z-index: 40;
  opacity: 1;
  transform: scale(1);
  transition-delay: 0.35s;
  pointer-events: auto;
}

.envelope .wax-seal {
  transition:
    opacity 0.4s ease,
    transform 0.4s ease;
}
.envelope[data-open="true"] .wax-seal {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.5);
}

/* ---------- Hanging photo cards (draggable clothesline gallery) ---------- */

#hang-stage {
  min-height: 260px;
}

.hang-card {
  position: absolute;
  width: 26vw;
  max-width: 96px;
  min-width: 78px;
  transform: translateX(-50%) rotate(var(--rot, 0deg));
  transform-origin: center top;
  cursor: grab;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
  -webkit-user-drag: none;
  animation: hangSway 4.6s ease-in-out infinite;
  animation-delay: calc(var(--rot, 0deg) * -0.08s);
  transition:
    left 0.45s cubic-bezier(0.2, 0.8, 0.2, 1),
    top 0.45s cubic-bezier(0.2, 0.8, 0.2, 1);
  z-index: 10;
}
.hang-card.dragging {
  animation-play-state: paused;
  transition: none;
  cursor: grabbing;
  z-index: 50;
}
.hang-card:active {
  cursor: grabbing;
}

.hang-clip {
  display: block;
  text-align: center;
  font-size: 20px;
  line-height: 1;
  margin-bottom: -8px;
  filter: drop-shadow(0 2px 3px rgba(107, 76, 122, 0.35));
  pointer-events: none;
}

.hang-photo {
  background: #fffdfb;
  border-radius: 10px;
  padding: 5px 5px 12px 5px;
  box-shadow:
    0 10px 22px -8px rgba(242, 103, 159, 0.35),
    0 2px 8px rgba(158, 133, 245, 0.16);
  pointer-events: none;
}
.hang-photo img {
  display: block;
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: 6px;
  pointer-events: none;
}

@keyframes hangSway {
  0%,
  100% {
    transform: translateX(-50%) rotate(calc(var(--rot, 0deg) - 3deg));
  }
  50% {
    transform: translateX(-50%) rotate(calc(var(--rot, 0deg) + 3deg));
  }
}

/* ---------- Certificate stamp sequence (timed reveal, depends on load) ---------- */

.stamp-anim {
  opacity: 0;
  animation: stampDown 0.55s 0.9s cubic-bezier(0.2, 0.9, 0.3, 1.2) forwards;
}
.stamp-glow-anim {
  opacity: 0;
  animation: stampGlowPop 0.5s 1.28s ease-out forwards;
}
.cert-card[data-shake="true"] {
  animation: cardShake 0.4s 0.1s ease-out;
}

/* ---------- Typewriter signature cursor ---------- */

#signature::after {
  content: "|";
  animation: blinkCursor 0.8s step-start infinite;
}
#signature.done::after {
  display: none;
}

/* ---------- Pages track (dynamic transform set from JS, must be real CSS) ---------- */

.pages-track {
  transition: transform 0.5s cubic-bezier(0.3, 0.8, 0.3, 1);
}
.page-slide::-webkit-scrollbar {
  display: none;
}
.page-slide {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.nav-hidden {
  opacity: 0 !important;
  pointer-events: none !important;
}