body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  margin: 0;
  padding: 0;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  color: #333;
}

.container {
  background: white;
  padding: 2.5rem;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  text-align: center;
  width: 90%;
  max-width: 480px;
  animation: fadeInUp 0.6s ease-out;
  position: relative;
  overflow: hidden;
}

.container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 2rem;
  color: #2d3748;
  letter-spacing: 0.5px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Voice samples */
.voice-samples {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  text-align: left;
}

.voice-card {
  padding: 1rem 1.25rem;
  background: linear-gradient(135deg, #f6f8fb 0%, #ffffff 100%);
  border-radius: 12px;
  border: 2px solid transparent;
  transition: all 0.3s ease;
}

.voice-card:hover {
  border-color: #667eea;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.15);
}

.voice-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: #2d3748;
  margin: 0 0 0.6rem;
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: unset;
  background-clip: unset;
}

audio {
  width: 100%;
  height: 36px;
  border-radius: 8px;
  outline: none;
}

audio::-webkit-media-controls-panel {
  background: linear-gradient(135deg, #f6f8fb 0%, #ffffff 100%);
  border-radius: 8px;
}

.message {
  font-size: 0.95rem;
  color: #718096;
  margin-top: 2rem;
  line-height: 1.6;
}

.note {
  font-size: 0.85rem;
  color: #a0aec0;
  margin-top: 2rem;
  line-height: 1.6;
  padding: 1rem;
  background: rgba(102, 126, 234, 0.05);
  border-radius: 10px;
  border-left: 3px solid #667eea;
}

.back-link {
  margin-top: 2rem;
  font-size: 0.9rem;
}

.back-link a {
  color: #667eea;
  text-decoration: none;
  font-weight: 500;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.back-link a:hover {
  color: #764ba2;
  transform: translateX(-4px);
}

/* Navigation */
.site-nav {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin: -0.5rem -0.5rem 1.5rem;
  padding: 0.75rem 0;
  border-bottom: 1px solid #e2e8f0;
}

.nav-link {
  padding: 0.4rem 1rem;
  border-radius: 8px;
  text-decoration: none;
  color: #667eea;
  font-weight: 500;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

.nav-link:hover {
  background: rgba(102, 126, 234, 0.1);
}

.nav-link.active {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
}

/* Portfolio */
.container-wide {
  max-width: 640px;
}

.portfolio-grid {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.portfolio-card {
  background: linear-gradient(135deg, #f6f8fb 0%, #ffffff 100%);
  border-radius: 12px;
  overflow: hidden;
  border: 2px solid transparent;
  transition: all 0.3s ease;
}

.portfolio-card:hover {
  border-color: #667eea;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(102, 126, 234, 0.3);
}

.video-wrapper {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  overflow: hidden;
}

.video-wrapper iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.portfolio-info {
  padding: 1rem 1.25rem;
  text-align: left;
}

.portfolio-title {
  font-size: 1rem;
  font-weight: 600;
  color: #2d3748;
  margin: 0 0 0.4rem;
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: unset;
  background-clip: unset;
}

.portfolio-description {
  font-size: 0.85rem;
  color: #718096;
  margin: 0;
  line-height: 1.5;
}