:root {
  --paper: #FAF8F5;
  --paper-edge: #ECE6DC;
  --paper-shade: #DDD5C7;
  --lining: #EED7B5;
  --lining-deep: #DFC092;
  --flap-h: 53%;
  --pocket-poly: polygon(0 0, 50% var(--flap-h), 100% 0, 100% 100%, 0 100%);
  --serif: "Cormorant Garamond", Georgia, serif;
  --cinzel: "Cinzel", Georgia, serif;
}

body.locked-scroll {
  overflow: hidden !important;
  height: 100dvh !important;
}

/* ---------- Fullscreen Overlay Backdrop ---------- */
.envelope-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: radial-gradient(circle at center, #260a32 0%, #0d0113 100%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  overflow: hidden;
  box-sizing: border-box;
}

/* Atmospheric subtle gold dust background */
.envelope-overlay::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1.5px 1.5px at 30px 40px, rgba(212, 175, 55, 0.4), transparent),
    radial-gradient(1.5px 1.5px at 120px 200px, rgba(255, 255, 255, 0.35), transparent),
    radial-gradient(2px 2px at 280px 140px, rgba(212, 175, 55, 0.45), transparent),
    radial-gradient(1.5px 1.5px at 220px 320px, rgba(230, 190, 255, 0.3), transparent);
  background-size: 360px 360px;
  opacity: 0.6;
  pointer-events: none;
}

/* ---------- Centered Realistic Physical Envelope ---------- */
.envelope-stage {
  position: relative;
  width: min(560px, 92vw);
  height: min(380px, 58vh);
  aspect-ratio: 1.48;
  border-radius: 8px;
  perspective: 1400px;
  transform-origin: 50% 50%;
  will-change: transform;
  filter: drop-shadow(0 25px 60px rgba(0, 0, 0, 0.6)) drop-shadow(0 8px 18px rgba(0, 0, 0, 0.4));
  box-sizing: border-box;
}

.envelope-stage > * {
  position: absolute;
}

/* Peach/gold inside of the envelope (revealed when flap opens) */
.env-lining {
  inset: 0;
  border-radius: 8px;
  background: linear-gradient(180deg, var(--lining-deep), var(--lining) 45%);
}

/* Letter peeking out of the pocket */
.env-letter {
  left: 6%;
  right: 6%;
  top: 15%;
  height: 75%;
  background: #FFFDF9;
  border-radius: 6px;
  box-shadow: 0 -4px 18px rgba(0, 0, 0, 0.12);
  transform: translateY(14%);
  will-change: transform;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  box-sizing: border-box;
}

.letter-inner-border {
  width: 100%;
  height: 100%;
  border: 1px solid rgba(212, 175, 55, 0.55);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  padding-top: 1rem;
  text-align: center;
  box-sizing: border-box;
}

.letter-pretitle {
  font-family: var(--cinzel);
  font-size: clamp(0.55rem, 1.4vw, 0.7rem);
  letter-spacing: 0.22em;
  color: #927527;
  text-transform: uppercase;
}

.letter-names {
  font-family: var(--serif);
  font-size: clamp(1.2rem, 3.2vw, 1.7rem);
  font-weight: 400;
  font-style: italic;
  color: #380e46;
  margin: 0.25rem 0 0.2rem;
  line-height: 1.1;
}

.letter-date {
  font-family: var(--cinzel);
  font-size: clamp(0.55rem, 1.3vw, 0.65rem);
  letter-spacing: 0.18em;
  color: #554433;
  text-transform: uppercase;
}

/* Front of the envelope (everything below the V) */
.env-pocket-edge,
.env-pocket {
  inset: 0;
  border-radius: 8px;
  clip-path: var(--pocket-poly);
}

.env-pocket-edge {
  background: var(--paper-shade);
  transform: translateY(2px);
}

.env-pocket {
  background:
    linear-gradient(to bottom right, rgba(255, 255, 255, 0.9) 0%, rgba(250, 248, 245, 0.95) 50%, #ECE6DC 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

/* Flap */
.env-flap {
  left: 0;
  top: 0;
  width: 100%;
  height: var(--flap-h);
  transform-origin: 50% 0;
  transform-style: preserve-3d;
  will-change: transform;
}

.flap-face {
  position: absolute;
  inset: 0;
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

.flap-front {
  background:
    linear-gradient(165deg, #FFFFFF 0%, #FAF8F5 40%, #EFE8DC 100%);
  border-top-left-radius: 8px;
  border-top-right-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.flap-text {
  position: absolute;
  top: 14%;
  left: 0;
  right: 0;
  text-align: center;
  pointer-events: none;
  color: #5e4e3e;
}

.flap-heading {
  display: block;
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(0.9rem, 2.2vw, 1.25rem);
  letter-spacing: 0.04em;
  color: #4a3828;
}

.flap-date {
  display: block;
  font-family: var(--serif);
  font-size: clamp(0.72rem, 1.6vw, 0.88rem);
  letter-spacing: 0.14em;
  margin-top: 2px;
  color: #7a6652;
}

.flap-back {
  background: linear-gradient(180deg, var(--lining-deep), var(--lining));
  transform: rotateX(180deg);
}

/* Wax seal anchor & button (TOP VIEW 3D) */
.wax-seal-anchor {
  position: absolute;
  left: 50%;
  top: var(--flap-h);
  transform: translate(-50%, -50%);
  width: clamp(100px, 20vw, 116px);
  height: clamp(100px, 20vw, 116px);
  z-index: 10;
  pointer-events: none;
}

.wax-seal-btn {
  width: 100%;
  height: 100%;
  border: 0;
  background: transparent;
  padding: 0;
  display: grid;
  place-items: center;
  cursor: pointer;
  pointer-events: auto;
  border-radius: 50%;
  will-change: transform, opacity;
  filter: drop-shadow(0 14px 22px rgba(0, 0, 0, 0.45)) drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
  -webkit-tap-highlight-color: transparent;
  outline: none;
  transition: filter 0.25s ease;
}

.wax-seal-btn:hover {
  filter: drop-shadow(0 20px 28px rgba(0, 0, 0, 0.55)) drop-shadow(0 6px 12px rgba(0, 0, 0, 0.35));
}

.wax-seal-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  pointer-events: none;
  border-radius: 50%;
}

/* Subtle glow pulse around the seal */
.wax-seal-btn::after {
  content: '';
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.35) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.8;
}

.tap-hint {
  margin-top: 2rem;
  text-align: center;
  z-index: 5;
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  letter-spacing: 0.1em;
  color: #dfd0bb;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
  pointer-events: none;
  animation: hintPulse 2.4s ease-in-out infinite;
}

@media (max-width: 600px) {
  .flap-heading,
  .tap-hint {
    font-size: 1rem;
  }

  .tap-hint {
    letter-spacing: 0.06em;
  }
}

@keyframes hintPulse {
  0%, 100% {
    opacity: 0.75;
    transform: translateY(0);
  }
  50% {
    opacity: 1;
    transform: translateY(-4px);
  }
}

/* ---------- White wash ---------- */
.white-wash {
  position: fixed;
  inset: 0;
  z-index: 10001;
  background: #fff;
  opacity: 0;
  pointer-events: none;
}

/* ---------- Hero Reveal Items ---------- */
.hero-item {
  opacity: 0;
  transform: translateY(28px);
  will-change: opacity, transform;
}

@media (prefers-reduced-motion: reduce) {
  .hero-backdrop-crisp,
  .hero-bg {
    transform: none;
  }
  .hero-item {
    opacity: 1 !important;
    transform: none !important;
  }
}