/* Nav */
.nav {
  position: fixed;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 0.75rem 1.5rem;
  width: min(900px, 94vw);
  border-radius: 999px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.nav::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(124, 92, 255, 0.4), rgba(0, 212, 170, 0.2), transparent);
  -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;
  pointer-events: none;
}

.nav__logo {
  font-weight: 800;
  font-size: 1.25rem;
  letter-spacing: -0.03em;
  display: inline-block;
  transition: transform 0.85s cubic-bezier(0.34, 1.2, 0.64, 1);
  transform-origin: center center;
}

.nav__logo:hover {
  transform: rotate(360deg);
}

@media (prefers-reduced-motion: reduce) {
  .nav__logo:hover {
    transform: none;
  }
}

.nav__dot {
  color: var(--accent-2);
}

.nav__links {
  display: flex;
  gap: 1.5rem;
  margin-left: auto;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-shrink: 0;
}

.nav__links a {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

.nav__links a:hover {
  color: var(--text);
}

@media (max-width: 640px) {
  .nav__links {
    display: none;
  }

  .nav {
    justify-content: space-between;
    padding: 0.65rem 1rem;
  }

  .nav__logo {
    font-size: 1.1rem;
  }
}

/* Hero */
.hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-height) + 1rem);
  padding-bottom: 3rem;
  overflow: hidden;
}

.hero__grid {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 4vw;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  position: relative;
  z-index: 1;
}

@media (max-width: 900px) {
  .hero__grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
}

.hero__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-2);
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}

.hero__title {
  font-size: clamp(2.4rem, 6.5vw, 4.25rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.04em;
  margin-bottom: 1rem;
}

.hero__title .neon-text {
  display: inline;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 2rem;
}

@media (max-width: 900px) {
  .hero__subtitle {
    margin-inline: auto;
  }
}

.hero__subtitle em {
  color: var(--accent);
  font-style: normal;
  font-weight: 600;
}

main {
  position: relative;
  z-index: 1;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
  min-height: 52px;
}

@media (max-width: 900px) {
  .hero__actions {
    justify-content: center;
  }
}

.hero__stats {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

@media (max-width: 900px) {
  .hero__stats {
    justify-content: center;
  }
}

.stat-card {
  padding: 1rem 1.25rem;
  text-align: center;
  min-width: 110px;
}

.stat-card__num {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-card__label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.globe-hint {
  text-align: center;
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.about {
  background: linear-gradient(180deg, transparent, rgba(124, 92, 255, 0.03) 50%, transparent);
}

.projects {
  background: var(--bg-elevated);
  border-block: 1px solid var(--border);
}

.skills {
  background: linear-gradient(180deg, transparent, rgba(0, 212, 170, 0.03) 50%, transparent);
}

.contact {
  padding-bottom: calc(var(--section-gap) + 2rem);
}

.about__grid {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 4vw;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3rem;
  align-items: center;
}

@media (max-width: 768px) {
  .about__grid {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }
}

.about__photo-wrap {
  position: relative;
  width: 240px;
  height: 260px;
}

.about__photo {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: linear-gradient(135deg, var(--accent), var(--accent-3));
}

.about__avatar {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  font-weight: 800;
  color: white;
  text-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.about__content {
  padding: 2.5rem;
}

.about__content p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.about__content p strong {
  color: var(--text);
}

.about__highlights {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.about__highlights li {
  font-size: 0.9rem;
  padding: 0.5rem 0.75rem;
  background: var(--surface);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

@media (max-width: 768px) {
  .about__highlights {
    grid-template-columns: 1fr;
  }
}

/* #16 Bento grid + #17 Container queries */
.bento-grid {
  max-width: var(--container);
  margin: 0 auto 3rem;
  padding: 0 4vw;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: auto auto;
  grid-template-areas:
    "wide wide card2 card3"
    "wide wide tall tall";
  gap: 1.25rem;
}

.bento-card--wide { grid-area: wide; }
.bento-card:nth-child(2) { grid-area: card2; }
.bento-card:nth-child(3) { grid-area: card3; }
.bento-card--tall { grid-area: tall; }

.bento-grid--6 {
  grid-template-areas:
    "wide wide card2 card3"
    "card4 card5 wide2 wide2";
}

.bento-grid--6 .bento-card:nth-child(1) { grid-area: wide; }
.bento-grid--6 .bento-card:nth-child(2) { grid-area: card2; }
.bento-grid--6 .bento-card:nth-child(3) { grid-area: card3; }
.bento-grid--6 .bento-card:nth-child(4) { grid-area: card4; }
.bento-grid--6 .bento-card:nth-child(5) { grid-area: card5; }
.bento-grid--6 .bento-card:nth-child(6) { grid-area: wide2; }

.bento-grid--6 .bento-card--wide2 .flip-card {
  min-height: 240px;
}

@media (max-width: 900px) {
  .bento-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-areas:
      "wide wide"
      "card2 card3"
      "tall tall";
  }

  .bento-grid--6 {
    grid-template-areas:
      "wide wide"
      "card2 card3"
      "card4 card5"
      "wide2 wide2";
  }
}

@media (max-width: 540px) {
  .bento-grid {
    grid-template-columns: 1fr;
    grid-template-areas: "wide" "card2" "card3" "tall";
  }

  .bento-grid--6 {
    grid-template-areas: "wide" "card2" "card3" "card4" "card5" "wide2";
  }
}

.bento-card {
  container-type: inline-size;
  padding: 0;
  overflow: hidden;
}

.bento-card .flip-card {
  min-height: 260px;
}

.bento-card--wide .flip-card {
  min-height: 300px;
}

.bento-card--tall .flip-card {
  min-height: 280px;
}

@container (max-width: 280px) {
  .flip-card__front h3,
  .flip-card__back h3 {
    font-size: 1rem;
  }

  .flip-card__front p,
  .flip-card__back p {
    font-size: 0.8rem;
  }

  .project-card__icon {
    font-size: 1.5rem !important;
  }
}

@container (min-width: 400px) {
  .flip-card__front,
  .flip-card__back {
    padding: 2rem;
  }

  .flip-card__front h3 {
    font-size: 1.5rem;
  }
}

.project-card__icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.flip-card__front h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.flip-card__front p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.flip-card__front .project-card__teaser {
  margin-bottom: 0.75rem;
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: auto;
}

.project-card__tag {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  padding: 0.2rem 0.55rem;
  background: rgba(124, 92, 255, 0.12);
  border: 1px solid rgba(124, 92, 255, 0.25);
  border-radius: 999px;
  color: var(--accent-2);
  letter-spacing: 0.02em;
}

.flip-card__back {
  justify-content: flex-start;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) transparent;
}

.flip-card__back-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-2);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

.flip-card__back h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.flip-card__back .project-card__desc {
  font-size: 0.82rem;
  line-height: 1.55;
  color: var(--text-muted);
  flex: 1;
  margin-bottom: 0.75rem;
}

.flip-card__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
  padding-top: 0.5rem;
}

.flip-card__actions .btn--ghost-sm {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 0.4rem 0.85rem;
  font-size: 0.78rem;
  border-radius: var(--radius-sm);
  transition: border-color 0.2s, color 0.2s;
}

.flip-card__actions .btn--ghost-sm:hover {
  border-color: var(--accent);
  color: var(--text);
}

/* #18 Snap gallery */
.snap-gallery-wrap {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 4vw;
}

.snap-gallery__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.snap-gallery {
  display: flex;
  gap: 1.25rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-padding: 4vw;
  padding-bottom: 1rem;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) transparent;
  cursor: grab;
  touch-action: pan-y pinch-zoom;
}

.snap-gallery.is-dragging {
  cursor: grabbing;
  scroll-snap-type: none;
  user-select: none;
}

.snap-gallery.is-dragging .snap-card {
  pointer-events: none;
}

.snap-gallery::-webkit-scrollbar {
  height: 6px;
}

.snap-gallery::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 999px;
}

.snap-card {
  flex: 0 0 min(280px, 80vw);
  scroll-snap-align: start;
  padding: 2rem;
  min-height: 180px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.snap-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px var(--glow);
}

.snap-card span {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  opacity: 0.5;
  margin-bottom: auto;
}

.snap-card h4 {
  font-size: 1.25rem;
  font-weight: 700;
}

.snap-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.35rem;
}

/* Skills */
.skills__bars {
  max-width: 640px;
  margin: 0 auto 3rem;
  padding: 0 4vw;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.skill-bar__header {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
}

.skill-bar__header span:last-child {
  font-family: var(--font-mono);
  color: var(--accent-2);
}

.skill-bar__track {
  height: 8px;
  background: var(--surface);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.skill-bar__fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 999px;
  box-shadow: 0 0 12px var(--glow);
  transition: width 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

.skill-bar.is-visible .skill-bar__fill {
  width: calc(var(--level, 0) * 1%);
}

.skills__tags {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 4vw;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.skill-tag {
  padding: 0.5rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.skill-tag:hover {
  border-color: var(--accent);
  box-shadow: 0 0 16px var(--glow);
}

/* Contact */
.contact__box {
  max-width: 640px;
  margin: 0 auto;
  padding: 3rem;
  text-align: center;
}

.contact__lead {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.contact__actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  position: relative;
  min-height: 200px;
  width: 100%;
}

.runaway-btn {
  position: relative;
  transition: left 0.35s cubic-bezier(0.34, 1.56, 0.64, 1),
              top 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.contact__links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
}

.contact-link {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: color 0.2s;
}

.contact-link:hover {
  color: var(--accent-2);
}

@media (max-width: 540px) {
  .contact__box {
    padding: 2rem 1.5rem;
  }
}