@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@400;600&display=swap');

/* Body */
html, body {
  margin: 0;
  padding: 0;
  height: 100vh;
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(135deg, #5a2d0c, #8b3e15, #c56b2d, #e89c3f); /* Autumn warm tones */
  color: white;
  overflow: hidden;
}

/* Falling Leaves */
.falling-leaves-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.falling-leaves-layer img {
  position: absolute;
  width: calc(5vw + 5vw * var(--scale));
  opacity: 0.85;
}

.layer1 img { animation: animate1 10s linear infinite; }
.layer2 img { animation: animate2 8s linear infinite; }
.layer3 img { animation: animate3 6s linear infinite; }

@keyframes animate1 {
  0% { top: -20%; left: calc(100% * var(--random-x)); transform: rotate(0); opacity: 0; }
  10% { opacity: 1; }
  100% { top: 120%; transform: rotate(90deg); opacity: 0; }
}
@keyframes animate2 {
  0% { top: -20%; left: calc(100% * var(--random-x)); transform: rotate(0); opacity: 0; }
  10% { opacity: 1; }
  100% { top: 120%; transform: rotate(180deg); opacity: 0; }
}
@keyframes animate3 {
  0% { top: -20%; left: calc(100% * var(--random-x)); transform: rotate(0); opacity: 0; }
  10% { opacity: 1; }
  100% { top: 120%; transform: rotate(270deg); opacity: 0; }
}

/* Back Button */
.back-button {
  position: fixed;
  top: 15px;
  left: 15px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 10px;
  padding: 12px 20px;
  font-size: 18px;
  font-weight: 600;
  color: white;
  cursor: pointer;
  z-index: 5;
  transition: transform 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}
.back-button:hover {
  background: rgba(255,200,150,0.35);
  transform: scale(1.1) translateY(-2px);
  box-shadow: 0 0 15px rgba(255,200,150,0.6);
}

/* Iframe Container */
.iframe-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  max-width: 1000px;
  height: 70vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 2;
}

.iframe-container iframe {
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 16px;
  background: rgba(0,0,0,0.3);
  backdrop-filter: blur(5px);
}

/* Button Bar */
.button-bar {
  margin-top: 12px;
  display: flex;
  gap: 12px;
  z-index: 3;
}

.button-bar button {
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 8px;
  padding: 10px;
  cursor: pointer;
  transition: transform 0.25s, background 0.3s, box-shadow 0.3s;
}
.button-bar button:hover {
  background: rgba(255,140,0,0.25);
  transform: scale(1.15);
  box-shadow: 0 0 12px rgba(255,140,0,0.6);
}

.button-bar button img {
  width: 22px;
  height: 22px;
  filter: brightness(0) invert(1); /* make icons white */
  transition: filter 0.3s;
}
.button-bar button:hover img {
  filter: drop-shadow(0 0 6px orange);
}