/* ==========================================================================
   Christopher Somoye Portfolio - Layout & Responsive Structure
   ========================================================================== */

/* --------------------------------------------------------------------------
   Floating Navigation Bar
   -------------------------------------------------------------------------- */
.navbar {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 20px;
  pointer-events: none; /* Container passes clicks */
}

.nav-container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(11, 15, 25, 0.78);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.45);
  pointer-events: auto; /* Re-enable for nav items */
  transition: all var(--transition-normal);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-avatar-mini {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 2px solid var(--mobile-primary);
  object-fit: cover;
}

.nav-title {
  display: flex;
  flex-direction: column;
}

.nav-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.2px;
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  color: var(--geo-primary);
  font-family: 'JetBrains Mono', monospace;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--geo-primary);
  box-shadow: 0 0 10px var(--geo-primary);
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.4;
    transform: scale(0.85);
  }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
}

.nav-link {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  padding: 8px 14px;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.08);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-toggle-btn {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  color: var(--text-primary);
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
  position: relative;
  min-height: 94vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 130px 0 80px;
  overflow: hidden;
}

.hero-content {
  text-align: center;
  max-width: 920px;
  margin: 0 auto;
}

/* Profile Image Frame */
.hero-profile-wrapper {
  position: relative;
  width: 140px;
  height: 140px;
  margin: 0 auto 28px;
}

.hero-profile-glow {
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--mobile-primary), var(--geo-primary));
  opacity: 0.75;
  filter: blur(14px);
  animation: glow-pulse 4s ease-in-out infinite alternate;
}

@keyframes glow-pulse {
  from {
    transform: scale(0.96);
    opacity: 0.6;
  }
  to {
    transform: scale(1.05);
    opacity: 0.9;
  }
}

.hero-profile-img {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--bg-surface);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-family: 'JetBrains Mono', monospace;
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 4.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 22px;
}

.hero-subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-secondary);
  max-width: 740px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 50px;
}

/* Metrics Ribbon */
.metrics-ribbon {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 900px;
  margin: 0 auto;
  padding: 24px;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.metric-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 12px;
  border-right: 1px solid rgba(255, 255, 255, 0.06);
}

.metric-item:last-child {
  border-right: none;
}

.metric-value {
  font-size: clamp(1.75rem, 3.5vw, 2.3rem);
  font-weight: 800;
  line-height: 1.1;
  font-family: 'JetBrains Mono', monospace;
  margin-bottom: 4px;
}

.metric-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Sections & Layout Commons
   -------------------------------------------------------------------------- */
.section {
  padding: 100px 0;
  position: relative;
  z-index: 1;
}

.section-header-center {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 54px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 14px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-family: 'JetBrains Mono', monospace;
  margin-bottom: 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  color: var(--mobile-primary);
}

.section-title {
  font-size: clamp(2rem, 3.8vw, 2.9rem);
  font-weight: 800;
  letter-spacing: -0.8px;
  line-height: 1.2;
  margin-bottom: 14px;
}

.section-description {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   Dual-Specialty Cards (Expertise Section)
   -------------------------------------------------------------------------- */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  margin-bottom: 20px;
}

.expertise-card {
  position: relative;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 38px;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.expertise-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
}

.expertise-card.mobile-domain::before {
  background: var(--mobile-gradient);
}

.expertise-card.geo-domain::before {
  background: var(--geo-gradient);
}

.expertise-card:hover {
  transform: translateY(-6px);
  border-color: var(--glass-border-focus);
  box-shadow: var(--shadow-lg);
}

.expertise-icon-wrap {
  width: 58px;
  height: 58px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  margin-bottom: 22px;
}

.mobile-domain .expertise-icon-wrap {
  background: var(--mobile-bg-tint);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--mobile-primary);
}

.geo-domain .expertise-icon-wrap {
  background: var(--geo-bg-tint);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: var(--geo-primary);
}

.expertise-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.3px;
}

.expertise-summary {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.65;
  margin-bottom: 24px;
  flex: 1;
}

.expertise-highlights {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.expertise-highlights li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.expertise-highlights li svg {
  flex-shrink: 0;
  margin-top: 3px;
}

/* --------------------------------------------------------------------------
   Filterable Projects Matrix
   -------------------------------------------------------------------------- */
.projects-filter-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
}

.filter-btn {
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--glass-border);
  transition: all var(--transition-fast);
}

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

.filter-btn.active {
  color: #ffffff;
  background: var(--bg-surface-elevated);
  border-color: var(--mobile-primary);
  box-shadow: 0 0 16px rgba(56, 189, 248, 0.25);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 30px;
}

/* --------------------------------------------------------------------------
   Experience & Education Timeline Layout
   -------------------------------------------------------------------------- */
.timeline-container {
  max-width: 880px;
  margin: 0 auto;
  position: relative;
  padding-left: 36px;
}

.timeline-container::before {
  content: '';
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 10px;
  width: 2px;
  background: linear-gradient(
    to bottom,
    var(--mobile-primary) 0%,
    var(--geo-primary) 50%,
    rgba(255, 255, 255, 0.08) 100%
  );
}

.timeline-item {
  position: relative;
  margin-bottom: 40px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-node {
  position: absolute;
  left: -36px;
  top: 8px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--bg-surface);
  border: 3px solid var(--mobile-primary);
  box-shadow: 0 0 12px var(--mobile-glow);
  z-index: 2;
  transition: all var(--transition-fast);
}

.timeline-item.geo-node .timeline-node {
  border-color: var(--geo-primary);
  box-shadow: 0 0 12px var(--geo-glow);
}

.timeline-content {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 26px 30px;
  transition: all var(--transition-normal);
}

.timeline-content:hover {
  border-color: var(--glass-border-focus);
  transform: translateX(4px);
}

.timeline-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
}

.timeline-role {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.timeline-company {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 600;
  display: block;
}

.timeline-badge {
  font-size: 0.78rem;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-family: 'JetBrains Mono', monospace;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
}

.timeline-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.timeline-bullets li {
  position: relative;
  padding-left: 18px;
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.timeline-bullets li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--mobile-primary);
  font-size: 0.85rem;
}

.timeline-item.geo-node .timeline-bullets li::before {
  color: var(--geo-primary);
}

/* --------------------------------------------------------------------------
   Technical Skills Cloud / Matrix
   -------------------------------------------------------------------------- */
.skills-categories-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.skill-category-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  padding: 28px;
  transition: all var(--transition-normal);
}

.skill-category-card:hover {
  border-color: var(--glass-border-focus);
  transform: translateY(-4px);
}

.skill-category-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.skill-category-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.skill-category-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.skills-pills-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

/* --------------------------------------------------------------------------
   Contact & Interactive Connect Block
   -------------------------------------------------------------------------- */
.contact-card-box {
  background: linear-gradient(135deg, rgba(17, 24, 39, 0.85) 0%, rgba(11, 15, 25, 0.95) 100%);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.contact-card-box::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--accent-dual-gradient);
}

.contact-channels {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 18px;
  margin: 36px 0;
}

.copy-contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.copy-contact-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--mobile-primary);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  padding: 40px 0 60px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  position: relative;
  z-index: 1;
}

.footer-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-text {
  font-size: 0.88rem;
  color: var(--text-muted);
}

.footer-socials {
  display: flex;
  align-items: center;
  gap: 16px;
}

.back-to-top {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.back-to-top:hover {
  color: #fff;
  border-color: var(--mobile-primary);
  background: rgba(56, 189, 248, 0.1);
  transform: translateY(-3px);
}

/* --------------------------------------------------------------------------
   Responsive Media Queries
   -------------------------------------------------------------------------- */
@media (max-width: 992px) {
  .expertise-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .metrics-ribbon {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 24px;
  }

  .metric-item:nth-child(2) {
    border-right: none;
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 70px;
    left: 20px;
    right: 20px;
    flex-direction: column;
    background: rgba(11, 15, 25, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 20px;
    box-shadow: 0 16px 40px rgba(0, 0, 0, 0.7);
  }

  .nav-links.mobile-open {
    display: flex;
  }

  .nav-link {
    width: 100%;
    padding: 12px 16px;
    text-align: center;
    font-size: 1rem;
  }

  .nav-toggle-btn {
    display: flex;
  }

  .hero-section {
    padding: 120px 0 60px;
    min-height: auto;
  }

  .hero-ctas {
    flex-direction: column;
    width: 100%;
  }

  .hero-ctas .btn {
    width: 100%;
    justify-content: center;
  }

  .metrics-ribbon {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 20px;
  }

  .metric-item {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding-bottom: 14px;
  }

  .metric-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .projects-grid {
    grid-template-columns: 1fr;
  }

  .timeline-container {
    padding-left: 26px;
  }

  .timeline-node {
    left: -26px;
    width: 16px;
    height: 16px;
  }

  .timeline-content {
    padding: 20px;
  }

  .contact-card-box {
    padding: 40px 20px;
  }

  .contact-channels {
    flex-direction: column;
    width: 100%;
  }

  .copy-contact-btn {
    width: 100%;
    justify-content: center;
  }

  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}