/* ============================================
   LOVE LETTER / ENVELOPE
   ============================================ */

.love-letter-section {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
  background: radial-gradient(ellipse at 30% 50%, rgba(107, 63, 160, 0.25), transparent 60%);
}

.envelope-wrapper {
  perspective: 1000px;
  cursor: pointer;
  position: relative;
}

.envelope {
  width: min(500px, 90vw);
  height: 320px;
  position: relative;
  transition: transform 0.6s ease;
}

.envelope:hover {
  transform: translateY(-5px);
}

.envelope-body {
  width: 100%;
  height: 100%;
  background: linear-gradient(145deg, var(--purple-dark), #5c30a0);
  border-radius: 12px;
  box-shadow:
    0 20px 60px rgba(0, 0, 0, 0.4),
    0 0 80px rgba(217, 160, 255, 0.08);
  position: relative;
  overflow: hidden;
}

.envelope-body::before {
  content: '';
  position: absolute;
  inset: 2px;
  border: 1px solid var(--border-glow);
  border-radius: 10px;
}

.envelope-flap {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 160px;
  background: linear-gradient(145deg, #5c30a0, var(--purple-dark));
  clip-path: polygon(0 0, 50% 100%, 100% 0);
  transform-origin: top center;
  transition: transform 0.8s ease;
  z-index: 3;
}

.envelope.open .envelope-flap {
  transform: rotateX(180deg);
  opacity: 0;
}

.envelope-seal {
  position: absolute;
  top: 85px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 60px;
  background: radial-gradient(circle, var(--rose-accent), #c0345a);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  z-index: 4;
  box-shadow: 0 4px 15px rgba(255, 77, 109, 0.4);
  transition: transform 0.5s ease, opacity 0.5s ease;
}

.envelope.open .envelope-seal {
  transform: translateX(-50%) scale(0);
  opacity: 0;
}

.envelope-hint {
  font-family: 'Dancing Script', cursive;
  position: absolute;
  bottom: 20px;
  width: 100%;
  text-align: center;
  color: var(--purple-light);
  font-size: 1rem;
  animation: fadeInOut 2s ease-in-out infinite;
}

.envelope.open .envelope-hint {
  display: none;
}

/* ---------- Letter ---------- */
.letter {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 40px);
  background: linear-gradient(to bottom, var(--purple-pale), #fff);
  border-radius: 8px;
  padding: 2rem;
  color: var(--purple-deep);
  z-index: 2;
  transition: transform 0.8s ease 0.3s;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  max-height: 280px;
  overflow-y: auto;
}

.envelope.open .letter {
  transform: translateX(-50%) translateY(-200px);
  max-height: none;
  overflow-y: visible;
}

.letter h3 {
  font-family: 'Dancing Script', cursive;
  font-size: 1.5rem;
  color: var(--purple-dark);
  margin-bottom: 1rem;
}

.letter p {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.05rem;
  line-height: 1.8;
  color: #4a2880;
}

.letter .signature {
  font-family: 'Dancing Script', cursive;
  font-size: 1.3rem;
  color: var(--rose-accent);
  text-align: right;
  margin-top: 1rem;
}

@media (max-width: 768px) {
  .envelope { height: 280px; }
  .letter   { padding: 1.5rem; }
}