/* ===================================
   Portfolio motion layer (adamu.tech)
   Respects prefers-reduced-motion
   =================================== */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  width: 0%;
  z-index: 1101;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3));
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 50%, transparent);
  pointer-events: none;
  transition: width 80ms linear;
}

.nav-links-group {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-indicator {
  position: absolute;
  left: 0;
  top: 50%;
  height: calc(100% - 4px);
  width: 0;
  min-width: 48px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent-soft), color-mix(in srgb, var(--accent-2) 18%, transparent));
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  box-shadow: 0 4px 14px color-mix(in srgb, var(--accent) 22%, transparent);
  transform: translateY(-50%);
  transition: left 280ms cubic-bezier(0.22, 1, 0.36, 1), width 280ms cubic-bezier(0.22, 1, 0.36, 1);
  z-index: 0;
  pointer-events: none;
}

.nav-links-group .nav-link {
  position: relative;
  z-index: 1;
}

.nav-link[aria-current="page"]::after {
  display: none;
}

.theme-toggle.is-spinning svg {
  animation: theme-spin 420ms ease;
}

@keyframes theme-spin {
  from { transform: rotate(-40deg) scale(0.85); opacity: 0.5; }
  to { transform: rotate(0deg) scale(1); opacity: 1; }
}

.hero-title__typed .highlight {
  background: linear-gradient(120deg, var(--accent) 0%, var(--accent-2) 55%, var(--accent-3) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-title__cursor {
  display: inline-block;
  width: 3px;
  height: 0.9em;
  margin-left: 2px;
  vertical-align: -0.08em;
  background: var(--accent);
  animation: cursor-blink 900ms step-end infinite;
}

.hero-title__cursor.is-done {
  opacity: 0;
  animation: none;
}

@keyframes cursor-blink {
  50% { opacity: 0; }
}

.nlp-signal {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  height: 2rem;
  margin-bottom: 0.75rem;
}

.nlp-signal__bar {
  flex: 1;
  max-width: 10px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--accent-2), var(--accent));
  transform-origin: bottom;
  animation: nlp-bar 1.2s ease-in-out infinite;
}

.nlp-signal__bar:nth-child(1) { animation-delay: 0s; height: 35%; }
.nlp-signal__bar:nth-child(2) { animation-delay: 0.1s; height: 65%; }
.nlp-signal__bar:nth-child(3) { animation-delay: 0.2s; height: 45%; }
.nlp-signal__bar:nth-child(4) { animation-delay: 0.15s; height: 80%; }
.nlp-signal__bar:nth-child(5) { animation-delay: 0.25s; height: 55%; }
.nlp-signal__bar:nth-child(6) { animation-delay: 0.05s; height: 70%; }
.nlp-signal__bar:nth-child(7) { animation-delay: 0.18s; height: 40%; }
.nlp-signal__bar:nth-child(8) { animation-delay: 0.28s; height: 90%; }

@keyframes nlp-bar {
  0%, 100% { transform: scaleY(0.55); opacity: 0.65; }
  50% { transform: scaleY(1); opacity: 1; }
}

.code-snippet-fade {
  display: block;
  min-height: 7.5rem;
  transition: opacity 320ms ease;
}

.code-snippet-fade.is-fading {
  opacity: 0.15;
}

.hero-visual,
.hero-copy,
.hero-orb,
.hero-gradient,
.hero-grid {
  will-change: transform;
}

.project-grid .project-card {
  transform-style: preserve-3d;
}

.project-card--featured {
  position: relative;
  isolation: isolate;
}

.project-card--featured::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: conic-gradient(from var(--spotlight-angle, 0deg), var(--accent), var(--accent-2), var(--accent-3), var(--accent));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 320ms ease;
  pointer-events: none;
  z-index: -1;
}

.project-card--featured:hover,
.project-card--featured.is-spotlight {
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 35%, transparent), var(--shadow-lg);
}

.project-card--featured:hover::before,
.project-card--featured.is-spotlight::before {
  opacity: 1;
  animation: spotlight-spin 4s linear infinite;
}

@keyframes spotlight-spin {
  to { --spotlight-angle: 360deg; }
}

@property --spotlight-angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}

.journey-timeline {
  list-style: none;
  margin: 1.5rem 0;
  padding: 0 0 0 1.25rem;
  border-left: 2px solid color-mix(in srgb, var(--accent) 35%, var(--border));
}

.journey-timeline__item {
  position: relative;
  padding: 0 0 1.35rem 1.25rem;
  opacity: 0;
  transform: translateX(-12px);
  transition: opacity 520ms ease, transform 520ms ease;
}

.journey-timeline.is-visible .journey-timeline__item {
  opacity: 1;
  transform: translateX(0);
}

.journey-timeline.is-visible .journey-timeline__item:nth-child(1) { transition-delay: 80ms; }
.journey-timeline.is-visible .journey-timeline__item:nth-child(2) { transition-delay: 200ms; }
.journey-timeline.is-visible .journey-timeline__item:nth-child(3) { transition-delay: 320ms; }
.journey-timeline.is-visible .journey-timeline__item:nth-child(4) { transition-delay: 440ms; }

.journey-timeline__dot {
  position: absolute;
  left: -1.58rem;
  top: 0.35rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-soft);
}

.journey-timeline__year {
  display: block;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.25rem;
}

.journey-timeline__content p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.africa-map-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 1rem;
  color: var(--accent);
  opacity: 0.85;
}

.africa-map {
  width: min(140px, 40vw);
  height: auto;
}

.africa-map__path {
  stroke-dasharray: 520;
  stroke-dashoffset: 520;
  transition: stroke-dashoffset 2.2s ease;
}

.africa-map.is-drawn .africa-map__path {
  stroke-dashoffset: 0;
}

.project-grid .project-card[data-animate].animated:nth-child(1) { transition-delay: 0ms; }
.project-grid .project-card[data-animate].animated:nth-child(2) { transition-delay: 70ms; }
.project-grid .project-card[data-animate].animated:nth-child(3) { transition-delay: 140ms; }
.project-grid .project-card[data-animate].animated:nth-child(4) { transition-delay: 210ms; }
.project-grid .project-card[data-animate].animated:nth-child(5) { transition-delay: 280ms; }
.project-grid .project-card[data-animate].animated:nth-child(6) { transition-delay: 350ms; }
.project-grid .project-card[data-animate].animated:nth-child(7) { transition-delay: 420ms; }
.project-grid .project-card[data-animate].animated:nth-child(8) { transition-delay: 490ms; }

[data-animate][data-delay="50"].animated { transition-delay: 50ms; }
[data-animate][data-delay="60"].animated { transition-delay: 60ms; }
[data-animate][data-delay="75"].animated { transition-delay: 75ms; }
[data-animate][data-delay="100"].animated { transition-delay: 100ms; }
[data-animate][data-delay="120"].animated { transition-delay: 120ms; }
[data-animate][data-delay="150"].animated { transition-delay: 150ms; }
[data-animate][data-delay="180"].animated { transition-delay: 180ms; }
[data-animate][data-delay="200"].animated { transition-delay: 200ms; }

@media (prefers-reduced-motion: reduce) {
  .project-card--featured::before {
    animation: none !important;
  }

  .hero-title__cursor {
    display: none;
  }
}

html.reduce-motion .project-card--featured::before {
  animation: none !important;
}

@media (max-width: 840px) {
  .nav-indicator { display: none; }
}

@media (pointer: coarse) {
  .project-card { transform: none !important; }
}