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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  background: #000;
  color: #fff;
  overflow-x: hidden;
}

/* Starry Background */
.stars {
  position: fixed;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
  z-index: 0;
}

.star {
  position: absolute;
  background: #808080;
  border-radius: 50%;
  animation: twinkle 3s infinite;
}

@keyframes twinkle {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.8; }
}

/* Main Container */
.container {
  position: relative;
  z-index: 10;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

/* Profile Header */
.profile-header {
  display: flex;
  gap: 2rem;
  margin-bottom: 2rem;
  align-items: center;
  flex-direction: column;
}

.profile-info {
  flex: 1;
  width: 100%;
  text-align: center;
}

.profile-details {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  max-width: 42rem;
  margin: 0 auto;
}

.detail-item {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

/* Navigation */
.nav-wrapper {
  position: relative;
  transition: all 0.3s;
}

.nav-wrapper.sticky {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.95);
  backdrop-filter: blur(8px);
  z-index: 50;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.nav-tabs {
  display: flex;
  gap: 1rem;
  border-bottom: 1px solid #1f2937;
  overflow-x: auto;
  scroll-behavior: smooth;
}

.nav-tab {
  padding: 1rem 0.5rem;
  position: relative;
  transition: color 0.3s;
  color: #6b7280;
  cursor: pointer;
  border: none;
  background: none;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}

.nav-tab:hover {
  color: #d1d5db;
}

.nav-tab.active {
  color: #fff;
}

.nav-tab.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: #fff;
}

/* Content Sections */
.content {
  margin-top: 2rem;
}

.content.sticky-active {
  margin-top: 5rem;
}

.section {
  background: rgba(17, 24, 39, 0.5);
  backdrop-filter: blur(8px);
  border: 1px solid #1f2937;
  border-radius: 0.5rem;
  padding: 1.5rem;
  margin-bottom: 3rem;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.section-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

/* Grids */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

/* Hidden states */
.hidden-item,
.hidden {
  display: none !important;
}

/* Responsive */
@media (min-width: 768px) {
  .profile-header {
    flex-direction: row;
    align-items: flex-start;
  }

  .profile-info {
    text-align: left;
  }

  .profile-meta {
    justify-content: flex-start !important;
  }

  .profile-details {
    margin: 0;
  }

  .detail-item {
    justify-content: flex-start;
  }

  .nav-tabs {
    gap: 2rem;
  }

  .about-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .media-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}