body {
  margin: 0;
  font-family: Georgia, serif;
  background: #f8f5f1;
  color: #2f2a26;
}

/* Background */
.bg {
  position: fixed;
  inset: 0;
  background-image: url("assets/botanical-bg.jpg");
  background-size: 135%;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0.7;
}
.bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at center,
    transparent 0%,
    #faf7f2 75%
  );
}
/* Center layout */
.center {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  text-align: center;
}

/* Card */
.card {
  background: rgba(255,255,255,0.88);
  padding: 42px;
  border-radius: 22px;
  box-shadow: 0 25px 60px rgba(0,0,0,0.12);
  max-width: 650px;
  width: 100%;
  transform: translateY(0);
  opacity: 1;
  transition: all 0.8s ease;
}

/* Fade states */
.fade-out {
  opacity: 0;
  transform: translateY(-10px);
}

.fade-in {
  animation: fadeIn 0.9s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Typography */
h1 {
  font-size: 48px;
  margin: 0;
  color: #a88a63;
}

.subtitle {
  margin-top: 12px;
  color: #7c6a55;
}

/* Button */
button {
  margin-top: 26px;
  padding: 12px 26px;
  border-radius: 999px;
  border: none;
  background: #7c6a55;
  color: white;
  font-size: 14px;
  letter-spacing: 2px;
  cursor: pointer;
}

button:hover {
  opacity: 0.9;
}

/* iframe PDF */
iframe {
  display: block;
  width: 100%;
  height: 85vh;
  border-radius: 14px;
  border: none;
  margin-top: 20px;
  background: transparent;
}
/* =========================
   FLOATING PETALS
========================= */

.petals {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.petal {
  position: absolute;
  top: -10%;
  width: 10px;
  height: 6px;
  background: rgba(160, 190, 170, 0.55);
  border-radius: 50%;
  filter: blur(0.4px);
  animation: fall linear infinite;
}

/* falling animation */
@keyframes fall {
  0% {
    transform: translateY(-10vh) translateX(0) rotate(0deg);
    opacity: 0;
  }
  10% {
    opacity: 1;
  }
  100% {
    transform: translateY(110vh) translateX(40px) rotate(360deg);
    opacity: 0;
  }
}