/* ---- Site Nav ---- */

.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-bg) 85%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: background-color var(--transition-base);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 3.5rem;
}

.site-nav__logo {
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--color-text);
}

.site-nav__logo:hover {
  color: var(--color-accent);
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.site-nav__link {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 500;
  transition: color var(--transition-fast);
}

.site-nav__link:hover {
  color: var(--color-accent);
}

.site-nav__toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  cursor: pointer;
  padding: var(--space-sm);
}

@media (max-width: 48rem) {
  .site-nav__toggle {
    display: block;
  }

  .site-nav__links {
    display: none;
    position: absolute;
    top: 3.5rem;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md);
    gap: var(--space-md);
  }

  .site-nav__links.is-open {
    display: flex;
  }
}

/* ---- Theme Toggle ---- */

.theme-toggle {
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text);
  cursor: pointer;
  padding: var(--space-xs) var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.theme-toggle:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.theme-toggle svg {
  width: 1.125rem;
  height: 1.125rem;
}

.theme-toggle .icon-moon { display: none; }

[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

/* ---- Game of Life Backdrop ---- */

.gol-backdrop {
  position: relative;
  padding-bottom: 1.25rem;
}

.gol-backdrop__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  mask-image: linear-gradient(to bottom, black 100dvh, rgba(0,0,0,0.25) 100dvh);
  -webkit-mask-image: linear-gradient(to bottom, black 100dvh, rgba(0,0,0,0.25) 100dvh);
}

/* ---- Hero ---- */

.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 100dvh;
  overflow: hidden;
  padding-top: 3.5rem;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: var(--content-width);
}

.hero__greeting {
  font-size: var(--text-lg);
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.hero__name {
  font-size: clamp(var(--text-4xl), 5vw, var(--text-5xl));
  margin-bottom: var(--space-md);
}

.hero__tagline {
  font-size: var(--text-xl);
  color: var(--color-text-muted);
  margin-bottom: var(--space-lg);
  max-width: 36rem;
}

.hero__links {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero__social-icons {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-left: var(--space-xs);
}

.hero__social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text-muted);
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.hero__social-icon:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.hero__social-icon svg {
  width: 1.125rem;
  height: 1.125rem;
}

.hero__scroll-hint {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ---- Skills Typewriter ---- */

.skills-typewriter {
  display: inline-block;
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  text-decoration: none;
  margin-bottom: var(--space-lg);
  transition: color var(--transition-fast);
}

.skills-typewriter:hover {
  color: var(--color-text);
}

.skills-typewriter__word {
  font-weight: 600;
  color: var(--color-text);
}

.skills-typewriter__cursor {
  font-weight: 300;
  color: var(--color-text-muted);
  animation: blink 0.8s step-end infinite;
}

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

/* ---- About Brief (landing page) ---- */

.about-brief {
  position: relative;
  z-index: 1;
  border-bottom: 1px solid var(--color-border);
}

.about-brief__heading {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-md);
}

.about-brief__text {
  font-size: var(--text-lg);
  line-height: 1.7;
  color: var(--color-text-muted);
  max-width: var(--content-width);
  margin-bottom: var(--space-md);
}

/* ---- Experience Slider (landing page) ---- */

.exp-slider-header {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
}

.exp-slider-header__title {
  font-size: var(--text-2xl);
}

.exp-slider {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 1px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--color-border) transparent;
  background: var(--color-border);
}

.exp-slider::-webkit-scrollbar {
  height: 4px;
}

.exp-slider::-webkit-scrollbar-track {
  background: transparent;
}

.exp-slider::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: 2px;
}

.exp-slide {
  flex: 1 0 15rem;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding: var(--space-lg) var(--space-xl);
  background: var(--color-bg);
  color: var(--color-text);
  text-decoration: none;
  transition: background-color var(--transition-fast);
}

.exp-slide:hover {
  background: var(--color-surface);
  color: var(--color-text);
}

.exp-slide__date {
  font-size: var(--text-xs);
  font-variant-numeric: tabular-nums;
  color: var(--color-text-muted);
  letter-spacing: 0.02em;
}

.exp-slide__title {
  font-size: var(--text-base);
  font-weight: 600;
}

.exp-slide__company {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ---- Inline Link ---- */

.inline-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: var(--color-border);
  transition: color var(--transition-fast), text-decoration-color var(--transition-fast);
}

.inline-link:hover {
  color: var(--color-text);
  text-decoration-color: var(--color-text);
}

/* ---- Buttons ---- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  border-radius: var(--radius);
  font-size: var(--text-sm);
  font-weight: 600;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
}

.btn--primary {
  background: var(--color-text);
  color: var(--color-bg);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  color: var(--color-bg);
}

.btn--outline {
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn--outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ---- Footer ---- */

.site-footer {
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-2xl);
  padding-block: var(--space-md);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.site-footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.site-footer__links {
  display: flex;
  gap: var(--space-md);
}

.site-footer__link {
  color: var(--color-text-muted);
}

.site-footer__link:hover {
  color: var(--color-accent);
}

/* ---- Prose (for markdown content) ---- */

.prose {
  max-width: var(--content-width);
}

.prose h2 {
  font-size: var(--text-2xl);
  margin-top: var(--space-2xl);
  margin-bottom: var(--space-md);
}

.prose h3 {
  font-size: var(--text-xl);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

.prose p {
  margin-bottom: var(--space-md);
}

.prose ul,
.prose ol {
  margin-bottom: var(--space-md);
  padding-left: var(--space-xl);
}

.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }

.prose li + li {
  margin-top: var(--space-xs);
}

.prose code {
  background: var(--color-bg-alt);
  padding: 0.15em 0.4em;
  border-radius: 0.25rem;
  font-size: 0.9em;
}

.prose pre {
  background: var(--color-bg-alt);
  padding: var(--space-lg);
  border-radius: var(--radius);
  overflow-x: auto;
  margin-bottom: var(--space-md);
}

.prose pre code {
  background: none;
  padding: 0;
}

.prose img {
  border-radius: var(--radius);
  margin-block: var(--space-md);
}

/* ---- Experience Entry ---- */

.timeline-entry {
  padding-left: var(--space-xl);
  border-left: 2px solid var(--color-border);
  padding-bottom: var(--space-2xl);
  position: relative;
}

.timeline-entry::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 0.4em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
}

.timeline-entry:last-child {
  padding-bottom: 0;
}

.timeline-entry__date {
  font-size: var(--text-sm);
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.timeline-entry__title {
  font-size: var(--text-xl);
  margin-bottom: var(--space-xs);
}

.timeline-entry__company {
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

/* ---- Publication Entry ---- */

.pub-entry {
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-md);
}

.pub-entry:last-child {
  border-bottom: none;
}

.pub-entry__title {
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.pub-entry__meta {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.pub-year-group {
  margin-bottom: var(--space-2xl);
}

.pub-year-group__heading {
  font-size: var(--text-2xl);
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
}

/* ---- Tags ---- */

.tag {
  display: inline-block;
  font-size: var(--text-xs);
  padding: 0.15em 0.6em;
  border-radius: 999px;
  background: var(--color-bg-alt);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
}

/* ---- Scroll fade-in ---- */

.fade-in {
  opacity: 0;
  transform: translateY(1.5rem);
  transition: opacity 0.8s ease, transform 0.8s ease;
  transition-delay: calc(var(--fade-order, 0) * 0.15s);
}

.fade-in--visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .fade-in {
    opacity: 1;
    transform: none;
    transition: none;
  }
}