* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: #fff;
  overflow: hidden;
}

.background {
  position: fixed;
  inset: 0;
  background: url("background.png") center/cover no-repeat;
  filter: brightness(0.45);
  z-index: -1;
}

.card {
  background: rgba(20, 20, 25, 0.75);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 24px;
  padding: 2.5rem 2rem;
  text-align: center;
  max-width: 380px;
  width: 90%;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.avatar {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid rgba(255, 255, 255, 0.2);
  margin-bottom: 1.2rem;
}

.name {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.bio {
  font-size: 0.95rem;
  opacity: 0.8;
  margin-bottom: 1.8rem;
  line-height: 1.4;
}

.payments {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.pay-btn {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  padding: 0;
}

.pay-btn:hover {
  background: rgba(255, 255, 255, 0.18);
  transform: translateY(-3px);
}

.pay-btn:active {
  transform: scale(0.95);
}

.pay-btn img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  background: #22c55e;
  color: white;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
  z-index: 100;
}

.toast.show {
  opacity: 1;
}

.hidden {
  display: none;
}

/* Intro screen */
.intro {
  position: fixed;
  inset: 0;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  cursor: pointer;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.intro p {
  font-size: 1.4rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  opacity: 0.85;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.intro.fade-out {
  opacity: 0;
  visibility: hidden;
}

/* Hide main content until intro is clicked */
.card.hidden,
.music-btn.hidden {
  opacity: 0;
  pointer-events: none;
  transform: scale(0.95);
}

.card,
.music-btn {
  transition: opacity 0.6s ease, transform 0.6s ease;
}