/* Extra patterns, aurora, scroll progress */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; width: 0;
  z-index: 200; background: var(--gradient-brand);
  box-shadow: 0 0 12px var(--accent-glow);
  transition: width 0.08s linear;
}

.bg-aurora {
  position: fixed; inset: 0; z-index: -2; pointer-events: none; overflow: hidden;
  opacity: 0.55;
}
.bg-aurora span {
  position: absolute; border-radius: 50%; filter: blur(80px);
  animation: auroraMove 14s ease-in-out infinite alternate;
}
.bg-aurora span:nth-child(1) {
  width: 55vw; height: 55vw; top: -20%; left: -10%;
  background: rgba(59, 130, 246, 0.22);
}
.bg-aurora span:nth-child(2) {
  width: 45vw; height: 45vw; top: 30%; right: -15%;
  background: rgba(124, 58, 237, 0.18);
  animation-delay: -4s; animation-duration: 18s;
}
.bg-aurora span:nth-child(3) {
  width: 40vw; height: 40vw; bottom: -15%; left: 25%;
  background: rgba(13, 148, 136, 0.16);
  animation-delay: -7s; animation-duration: 16s;
}

.bg-pattern-cross {
  position: fixed; inset: 0; z-index: -2; pointer-events: none; opacity: 0.04;
  background-image:
    linear-gradient(rgba(29, 78, 216, 0.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(29, 78, 216, 0.5) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black, transparent);
}

.bg-pattern-waves {
  position: fixed; inset: 0; z-index: -2; pointer-events: none; opacity: 0.035;
  background: url("data:image/svg+xml,%3Csvg width='100' height='20' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 10 Q25 0 50 10 T100 10' fill='none' stroke='%231d4ed8' stroke-width='1'/%3E%3C/svg%3E") repeat;
  animation: waveScroll 40s linear infinite;
}

.bg-particles {
  position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden;
}
.bg-particles i {
  position: absolute; width: 4px; height: 4px; border-radius: 50%;
  background: var(--accent); opacity: 0.25;
  animation: particleFloat 12s ease-in-out infinite;
}
.bg-particles i:nth-child(1) { left: 8%; top: 20%; animation-delay: 0s; }
.bg-particles i:nth-child(2) { left: 22%; top: 65%; animation-delay: -2s; width: 3px; height: 3px; }
.bg-particles i:nth-child(3) { left: 45%; top: 35%; animation-delay: -4s; }
.bg-particles i:nth-child(4) { left: 68%; top: 75%; animation-delay: -1s; }
.bg-particles i:nth-child(5) { left: 82%; top: 25%; animation-delay: -3s; width: 5px; height: 5px; }
.bg-particles i:nth-child(6) { left: 92%; top: 55%; animation-delay: -5s; }

@keyframes auroraMove {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(5%, 8%) scale(1.08); }
}
@keyframes waveScroll {
  0% { background-position: 0 0; }
  100% { background-position: 200px 0; }
}
@keyframes particleFloat {
  0%, 100% { transform: translateY(0) translateX(0); opacity: 0.2; }
  50% { transform: translateY(-30px) translateX(12px); opacity: 0.45; }
}

.reveal-right {
  opacity: 0;
  transform: translateX(32px);
  filter: blur(4px);
  transition: opacity 0.75s cubic-bezier(0.22, 1, 0.36, 1), transform 0.75s cubic-bezier(0.22, 1, 0.36, 1), filter 0.75s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal-right.visible { opacity: 1; transform: translateX(0); filter: blur(0); }

.reveal-fade {
  opacity: 0;
  transition: opacity 0.9s ease;
}
.reveal-fade.visible { opacity: 1; }

/* Education block with logo */
.education-logo {
  width: 72px; height: 72px; flex-shrink: 0;
  border-radius: 14px; object-fit: contain;
  background: var(--surface); border: 1px solid var(--border);
  padding: 6px; box-shadow: var(--shadow-sm);
}
.education-badge {
  display: inline-flex; align-items: center; gap: 0.35rem;
  font-size: 0.6875rem; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--success);
  padding: 0.25rem 0.6rem; background: var(--success-bg);
  border-radius: 999px; margin-bottom: 0.5rem;
}

.about-highlights {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin-top: 2rem;
}
.about-highlight {
  padding: 1.25rem; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm); text-align: center;
}
.about-highlight strong {
  display: block; font-size: 1.375rem; font-weight: 700;
  color: var(--accent); margin-bottom: 0.25rem;
}
.about-highlight span { font-size: 0.75rem; color: var(--text-muted); }

.skills-detail-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; margin-bottom: 3rem;
}
.skills-detail-card {
  padding: 1.5rem; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}
.skills-detail-card h3 {
  font-size: 0.9375rem; font-weight: 700; margin-bottom: 0.75rem;
  display: flex; align-items: center; gap: 0.5rem;
}
.skills-detail-card ul {
  list-style: none; font-size: 0.8125rem; color: var(--text-muted); line-height: 1.8;
}
.skills-detail-card li::before {
  content: "▸"; color: var(--accent); margin-right: 0.4rem;
}

.marquee-section { padding: 1.5rem 0; overflow: hidden; }
.marquee-section .marquee-track span {
  background: var(--surface); color: var(--text-secondary);
  border-color: var(--border);
}

@media (max-width: 960px) {
  .about-highlights, .skills-detail-grid { grid-template-columns: 1fr; }
}
@media (max-width: 640px) {
  .about-highlights { grid-template-columns: 1fr 1fr; }
  .skills-detail-grid { grid-template-columns: 1fr; }
}