/* ============================================================
   ROOT & RESET
   ============================================================ */
:root {
  --bg:          #0b0c0f;
  --surface:     #13151a;
  --surface-2:   #1a1d24;
  --border:      rgba(255,255,255,0.07);
  --accent:      #5bffd3;
  --accent-dim:  rgba(91,255,211,0.12);
  --accent-2:    #7b8cff;
  --accent-3:    #ffcb5b;
  --text-primary: #f0f0ee;
  --text-secondary: #9a9fa8;
  --text-muted:  #5c616b;
  --font-display: 'DM Serif Display', Georgia, serif;
  --font-body:   'Sora', sans-serif;
  --font-mono:   'DM Mono', monospace;
  --radius:      14px;
  --max-w:       960px;
  --nav-h:       60px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.7;
  font-size: 1rem;
  opacity: 0;
  transition: opacity 0.6s ease;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body.loaded { opacity: 1; }

img, video { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
a, button {
  -webkit-tap-highlight-color: transparent;
}
em { font-family: var(--font-display); font-style: italic; }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky;
  top: 0; left: 0; right: 0;
  bottom: auto;
  z-index: 1000;
  width: 100%;
  height: var(--nav-h);
  background: rgba(11,12,15,0.92);
  border-bottom: 1px solid var(--border);
  transition: background-color 0.3s;
  transform: none;
}

.nav.scrolled {
  background: rgba(11,12,15,0.98);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 32px;
  padding: 0 24px;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 24px;
  flex: 1;
}

.nav-links a {
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--text-secondary);
  letter-spacing: 0.03em;
  transition: color 0.2s;
}


.nav-links a:hover { color: var(--text-primary); }
.nav-links a.active {
  color: var(--text-primary);
}

.nav-cta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  padding: 7px 16px;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
  flex-shrink: 0;
}

.nav-cta:hover {
  background: var(--accent);
  color: var(--bg);
}

.menu-button {
  display: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--text-primary);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: calc(100vh - var(--nav-h));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 60px 24px 80px;
}

@supports (height: 100svh) {
  .hero {
    min-height: calc(100svh - var(--nav-h));
  }
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.18;
}

.blob-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent), transparent 70%);
  top: -100px;
  right: -150px;
}

.blob-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-2), transparent 70%);
  bottom: -100px;
  left: -100px;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, black 30%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  border: 1px solid rgba(91,255,211,0.3);
  padding: 5px 14px;
  border-radius: 100px;
  letter-spacing: 0.04em;
  animation: fadeSlideUp 0.8s ease both;
}

.dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}

.hero-name {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 10vw, 7rem);
  line-height: 1;
  letter-spacing: -0.02em;
  animation: fadeSlideUp 0.8s 0.1s ease both;
}

.hero-name em {
  color: var(--accent);
  display: block;
}

.hero-role {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  animation: fadeSlideUp 0.8s 0.2s ease both;
}

.hero-tagline {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 520px;
  animation: fadeSlideUp 0.8s 0.3s ease both;
}

@media (max-width: 720px) {
  .hero-tagline {
    max-width: 100%;
    font-size: 0.95rem;
  }
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-top: 12px;
  flex-wrap: wrap;
  justify-content: center;
  animation: fadeSlideUp 0.8s 0.4s ease both;
}

.hero-photo-frame {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid rgba(91,255,211,0.4);
  flex-shrink: 0;
}

.hero-photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-contacts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.contact-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 8px 15px;
  border-radius: 100px;
  border: 1px solid var(--border);
  color: var(--text-secondary);
  background: var(--surface);
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.contact-pill:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.hero-scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  animation: bounce 2s ease infinite;
}

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

/* ============================================================
   SECTION BASE
   ============================================================ */
.section {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 100px 24px;
  border-bottom: 1px solid var(--border);
}

.section:last-of-type { border-bottom: none; }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin-bottom: 48px;
}

/* reveal animation */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-layout {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 60px;
  align-items: start;
}

.about-body {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.about-body p {
  color: var(--text-secondary);
  font-size: 0.97rem;
}

.about-body em {
  color: var(--text-primary);
  font-style: italic;
}

.edu-strip {
  grid-column: 1 / -1;
  margin-top: 60px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.edu-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.edu-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: var(--accent-dim);
  border: 1px solid rgba(91,255,211,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 0.85rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.edu-item strong {
  display: block;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.edu-item span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.edu-item em {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-style: italic;
  margin-top: 4px;
}

/* ============================================================
   PROJECTS
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  width: 100%;
}

.project-card.featured {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  align-items: center;
}

.project-card.featured .card-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  height: 100%;
  min-width: 0; /* prevent flex/grid item blowout */
}

/* Alternating layout: even featured cards put media on left */
.project-card.featured:nth-child(even) .card-body { order: 2; }
.project-card.featured:nth-child(even) > video,
.project-card.featured:nth-child(even) > img,
.project-card.featured:nth-child(even) > .project-images,
.project-card.featured:nth-child(even) > .project-media-placeholder { order: 1; }

.project-card.featured > video {
  width: 100%;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--border);
  display: block;
}

.project-card.featured > img {
  width: 100%;
  height: auto;
  border-radius: 10px;
  border: 1px solid var(--border);
  display: block;
}

.project-card.featured > .project-images {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.project-card.featured > .project-images img {
  max-width: 100%;
  width: 100%;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color 0.25s, transform 0.25s;
  min-width: 0; /* prevent grid blowout */
  overflow: hidden;
}

.project-card:hover {
  border-color: rgba(91,255,211,0.25);
  transform: translateY(-3px);
}

.project-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.05em;
}

.project-year {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.project-card h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 400;
  line-height: 1.3;
  color: var(--text-primary);
}

.project-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  flex: 1;
}


.project-card img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--border);
}

.project-card video {
  width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--border);
  display: block;
}

.project-images {
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
}

.project-images img {
  max-width: 48%;
}

.project-footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 4px;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tech-tags span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-muted);
}

.project-links {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
}

.project-links a {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 5px;
  transition: opacity 0.2s;
}

.project-links a:hover { opacity: 0.7; }

.more-card {
  border-style: dashed;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 12px;
  color: var(--text-muted);
}

.more-icon {
  font-size: 2rem;
  color: var(--text-muted);
}

.more-card h3 {
  font-size: 1rem;
  font-family: var(--font-body);
  color: var(--text-secondary);
}

.more-card p {
  font-size: 0.85rem;
}

.more-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap 0.2s;
}

.more-link:hover { gap: 10px; }

/* ============================================================
   SKILLS
   ============================================================ */
.skills-layout {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: start;
}

.skill-group {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 2px solid var(--accent);
  border-radius: var(--radius);
  padding: 24px;
}

.skill-group--ml  { border-top-color: var(--accent-2); }
.skill-group--xai { border-top-color: var(--accent-3); }

.skill-group-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

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

.skills-grid span {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  padding: 6px 15px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-secondary);
  transition: border-color 0.2s, color 0.2s;
}

.skills-grid span:hover {
  border-color: rgba(91,255,211,0.35);
  color: var(--accent);
}

/* ============================================================
   EXPERIENCE / TIMELINE
   ============================================================ */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 28px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: 48px;
  padding-left: 28px;
}

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

.timeline-dot {
  position: absolute;
  left: -21px;
  top: 8px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--accent);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}

.timeline-body h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 400;
  margin-bottom: 4px;
}

.timeline-org {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  display: block;
  margin-bottom: 12px;
}

.timeline-body p {
  font-size: 0.93rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
}

.inline-link {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 5px;
  transition: gap 0.2s;
}

.inline-link:hover { gap: 9px; }

/* ============================================================
   PUBLICATIONS
   ============================================================ */
.pub-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.pub-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 32px;
  padding: 36px 0;
  border-bottom: 1px solid var(--border);
}

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

.pub-year {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  padding-top: 4px;
}

.pub-venue {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.05em;
  display: block;
  margin-bottom: 8px;
}

.pub-body h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 400;
  margin-bottom: 12px;
  line-height: 1.35;
}

.pub-body p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 14px;
}

/* ============================================================
   RECOMMENDATIONS
   ============================================================ */
.recs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.rec-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 32px 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
  overflow: hidden;
  justify-content: space-between;
  transition: transform 0.25s;
}

.rec-card:hover { transform: translateY(-3px); }

.rec-quote-mark {
  font-family: var(--font-display);
  font-size: 6rem;
  line-height: 0.6;
  color: var(--accent);
  opacity: 0.15;
  position: absolute;
  top: 20px;
  left: 20px;
  pointer-events: none;
}

.rec-card blockquote {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.75;
  font-style: italic;
  position: relative;
  z-index: 1;
}

.rec-author {
  display: flex;
  flex-direction: column;
  gap: 3px;
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.rec-author strong {
  color: var(--text-primary);
  font-weight: 600;
}

.rec-author span {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.rec-author a { margin-top: 8px; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  border-top: 1px solid var(--border);
  padding: 32px 24px;
}

.footer-inner {
  max-width: var(--max-w);
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--text-primary);
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 1.1rem;
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--accent); }

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 720px) {
  .about-layout { grid-template-columns: 1fr; gap: 32px; }
  .projects-grid { grid-template-columns: 1fr; }
  .project-card.featured {
    display: flex;
    flex-direction: column;
    grid-column: span 1;
    gap: 14px;
    align-items: stretch;
  }
  .project-card.featured .card-body {
    display: contents;
  }
  .project-card.featured .project-meta { order: 1; }
  .project-card.featured h3 { order: 2; }
  .project-card.featured .card-body > p { order: 3; }
  .project-card.featured > video,
  .project-card.featured > img,
  .project-card.featured > .project-images,
  .project-card.featured > .project-media-placeholder { order: 4; }
  .project-card.featured .project-footer { order: 5; }
  .project-card.featured:nth-child(even) .card-body { order: 0; }
  .project-card.featured:nth-child(even) > video,
  .project-card.featured:nth-child(even) > img,
  .project-card.featured:nth-child(even) > .project-images,
  .project-card.featured:nth-child(even) > .project-media-placeholder { order: 4; }
  .skills-layout { grid-template-columns: 1fr; }
  .lightbox.active { backdrop-filter: none; }

  .menu-button {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    gap: 16px;
    padding: 24px 0;
    border-bottom: 1px solid var(--border);
    display: none;
    z-index: 999;
  }

  .nav-links.active {
    display: flex;
  }

  .hero-blob {
    filter: blur(60px);
  }

  .pub-item { grid-template-columns: 1fr; gap: 8px; }
  .pub-year { padding-top: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* Back to top ------------------------------------------------- */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 99;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--accent);
  font-size: 0.9rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.3s ease, transform 0.3s ease, background 0.2s;
  pointer-events: none;
  -webkit-tap-highlight-color: transparent; /* already good practice */
  touch-action: manipulation;               /* prevents 300ms delay + stuck states */
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-to-top:hover {
  background: var(--accent-dim);
  border-color: var(--accent);
}

@media (hover: none), (pointer: coarse) {
  .nav-links a:hover {
    color: var(--text-secondary);
  }

  .nav-links a.active:hover {
    color: var(--text-primary);
  }

  .nav-cta:hover {
    background: transparent;
    color: var(--accent);
  }

  .contact-pill:hover {
    border-color: var(--border);
    color: var(--text-secondary);
    background: var(--surface);
  }

  .project-card:hover,
  .rec-card:hover {
    border-color: var(--border);
    transform: none;
  }

  .project-links a:hover {
    opacity: 1;
  }

  .more-link:hover {
    gap: 6px;
  }

  .skills-grid span:hover {
    border-color: var(--border);
    color: var(--text-secondary);
  }

  .inline-link:hover {
    gap: 5px;
  }

  .footer-links a:hover {
    color: var(--text-muted);
  }

  .back-to-top:hover {
    background: var(--surface);
    border-color: var(--border);
  }
}

.is-touch .nav-links a:hover {
  color: var(--text-secondary);
}

.is-touch .nav-links a.active:hover {
  color: var(--text-primary);
}

.is-touch .nav-cta:hover {
  background: transparent;
  color: var(--accent);
}

.is-touch .contact-pill:hover {
  border-color: var(--border);
  color: var(--text-secondary);
  background: var(--surface);
}

.is-touch .project-card:hover,
.is-touch .rec-card:hover {
  border-color: var(--border);
  transform: none;
}

.is-touch .project-links a:hover {
  opacity: 1;
}

.is-touch .more-link:hover {
  gap: 6px;
}

.is-touch .skills-grid span:hover {
  border-color: var(--border);
  color: var(--text-secondary);
}

.is-touch .inline-link:hover {
  gap: 5px;
}

.is-touch .footer-links a:hover {
  color: var(--text-muted);
}

.is-touch .back-to-top:hover,
.is-touch .back-to-top:active,
.is-touch .back-to-top:focus {
  background: var(--surface);
  border-color: var(--border);
}

/* Accessibility focus styles */
a:focus:not(:focus-visible),
button:focus:not(:focus-visible) {
  outline: none;
}

.is-touch a:focus,
.is-touch button:focus {
  outline: none;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ============================================================
   LIGHTBOX
   ============================================================ */
.project-card img,
.project-card video { cursor: zoom-in; }

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: rgba(0, 0, 0, 0.88);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  /* delay visibility so it hides only after the opacity fade-out completes */
  transition: opacity 0.25s ease, visibility 0s 0.25s;
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  backdrop-filter: blur(6px);
  transition: opacity 0.25s ease, visibility 0s 0s;
}

.lightbox-inner {
  position: relative;
  max-width: min(90vw, 1100px);
  max-height: 90vh;
}

.lightbox-content img,
.lightbox-content video {
  display: block;
  max-width: 100%;
  max-height: 88vh;
  border-radius: 10px;
  box-shadow: 0 32px 100px rgba(0, 0, 0, 0.6);
}

.lightbox-close {
  position: absolute;
  top: -44px;
  right: 0;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.lightbox-close:hover { background: rgba(255, 255, 255, 0.2); }

@media (hover: none), (pointer: coarse) {
  .lightbox-close:hover { background: rgba(255, 255, 255, 0.08); }
}

.is-touch .lightbox-close:hover,
.is-touch .lightbox-close:active,
.is-touch .lightbox-close:focus {
  background: rgba(255, 255, 255, 0.08);
}