:root {
  color-scheme: dark;
  --bg-0: #000000;
  --bg-1: #000000;
  --card-bg: rgba(255, 255, 255, 0.04);
  --card-border: rgba(255, 255, 255, 0.08);
  --text-primary: #f5f5f7;
  --text-secondary: #a1a1aa;
}

* {
  box-sizing: border-box;
}

html, body {
  height: 100%;
}

body {
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg-0);
  color: var(--text-primary);
  overflow-x: hidden;
  padding: 24px;
}

.background {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: var(--bg-1);
}

.card {
  width: 100%;
  max-width: 420px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 48px 36px;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  text-align: center;
  animation: fadeIn 0.6s ease-out;
}

.name {
  font-size: 1.7rem;
  font-weight: 600;
  margin: 0 0 32px;
  letter-spacing: -0.01em;
}

.email-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 12px 12px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

.icon svg {
  width: 100%;
  height: 100%;
}

.email-text {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  text-align: left;
}

.copy-btn {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  padding: 0;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-secondary);
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

.copy-btn:hover,
.copy-btn:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-primary);
}

.copy-btn .copy-icon,
.copy-btn .check-icon {
  position: absolute;
  width: 17px;
  height: 17px;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.copy-btn .check-icon {
  opacity: 0;
  transform: scale(0.6);
  color: #4ade80;
}

.copy-btn.copied .copy-icon {
  opacity: 0;
  transform: scale(0.6);
}

.copy-btn.copied .check-icon {
  opacity: 1;
  transform: scale(1);
}

.social-row {
  display: flex;
  justify-content: center;
  gap: 14px;
}

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  text-decoration: none;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.15s ease;
}

.icon-btn svg {
  width: 22px;
  height: 22px;
}

.icon-btn:hover,
.icon-btn:focus-visible {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.16);
  color: var(--text-primary);
  transform: translateY(-2px);
}

.icon-btn:active {
  transform: translateY(0);
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 480px) {
  .card {
    padding: 36px 24px;
  }
}