/* ============ NAV ============ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4) var(--gutter);
  transition: background var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out), backdrop-filter var(--dur) var(--ease-out);
  border-bottom: 1px solid transparent;
}
.nav--scrolled {
  background: rgba(10, 10, 11, 0.72);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom-color: var(--color-border);
}
.nav__brand {
  font-weight: 700;
  font-size: var(--text-base);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text);
}
.nav__brand:hover { color: var(--color-text); }
.nav__links {
  display: flex;
  gap: var(--space-6);
  list-style: none;
  padding: 0;
}
.nav__link {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: 500;
  transition: color var(--dur-fast) var(--ease-out);
  position: relative;
}
.nav__link::after {
  content: '';
  display: block;
  width: 0;
  height: 1px;
  background: var(--color-accent);
  transition: width var(--dur-fast) var(--ease-out);
}
.nav__link:hover::after { width: 100%; }
.nav__link:hover { color: var(--color-text); }
.nav__link--active { color: var(--color-text); }
.nav__link--active::after { width: 100%; }
.nav__brand-short { display: none; }
@media (max-width: 640px) {
  .nav__links { gap: var(--space-4); }
  .nav__link { font-size: var(--text-xs); }
}
@media (max-width: 540px) {
  .nav { padding-inline: var(--space-4); }
  .nav__brand { font-size: var(--text-sm); }
  .nav__brand-full { display: none; }
  .nav__brand-short { display: inline; }
  .nav__links { gap: var(--space-3); }
}

/* ============ FOOTER ============ */
.footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-8);
  margin-top: var(--space-9);
}
.footer__inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-6);
  align-items: end;
}
.footer__contact {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.footer__email {
  font-size: var(--text-2xl);
  font-weight: 600;
  letter-spacing: var(--tracking-tight);
  color: var(--color-text);
}
.footer__email:hover { color: var(--color-accent); }
.footer__phone { color: var(--color-text-muted); font-family: var(--font-mono); font-size: var(--text-sm); }
.footer__socials {
  display: flex;
  gap: var(--space-5);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
}
.footer__bottom {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-dim);
  letter-spacing: var(--tracking-wide);
}
@media (max-width: 720px) {
  .footer__inner { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: var(--space-2); }
}

/* ============ BUTTONS ============ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0;
  transition: background var(--dur-fast) var(--ease-out), border-color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
  border: 1px solid var(--color-border-strong);
  color: var(--color-text);
  background: transparent;
}
.btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-1px) scale(1.02);
}
.btn--primary {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #0A0A0B;
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: #0A0A0B;
}
.btn__arrow { transition: transform var(--dur-fast) var(--ease-out); }
.btn:hover .btn__arrow { transform: translateX(3px); }

.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-pill);
  background: var(--color-accent-dim);
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  font-weight: 500;
}
.pill__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 8px var(--color-accent);
  animation: pulse 2.4s var(--ease-in-out) infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

/* ============ STATS STRIP ============ */
.stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-4);
  padding-block: var(--space-6);
  border-block: 1px solid var(--color-border);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.stats__item { white-space: nowrap; }
.stats__sep {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-accent);
  opacity: 0.7;
}
@media (max-width: 720px) {
  .stats { font-size: 0.75rem; gap: var(--space-3); }
}

/* ============ PROJECT CARD ============ */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-6);
}
.cards--featured {
  grid-template-columns: 1fr;
  gap: var(--space-7);
}
@media (min-width: 900px) {
  .cards--featured { grid-template-columns: repeat(3, 1fr); }
}

.card {
  display: block;
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  color: var(--color-text);
  transition: transform var(--dur) var(--ease-out), border-color var(--dur) var(--ease-out), box-shadow var(--dur) var(--ease-out);
  isolation: isolate;
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(74, 138, 232, 0.25);
  box-shadow: var(--shadow-lift), 0 8px 32px rgba(74, 138, 232, 0.08);
  color: var(--color-text);
}
.card__media {
  position: relative;
  aspect-ratio: 16 / 10;
  background: var(--color-surface-2);
  overflow: hidden;
}
.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out), opacity var(--dur) var(--ease-out);
}
.card:hover .card__media img { transform: scale(1.03); }
.card__placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-dim);
  background: repeating-linear-gradient(135deg, rgba(255,255,255,0.02) 0 8px, transparent 8px 16px);
  text-align: center;
  padding: var(--space-4);
  letter-spacing: var(--tracking-wide);
}
.card__body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text-muted);
}
.card__meta .accent { color: var(--color-accent); }
.card__title {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: var(--tracking-tight);
  color: var(--color-text);
}
.card__impact {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}
.card__tools {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-2);
}
.tool-chip {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 2px var(--space-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  letter-spacing: 0.04em;
}

.card__arrow {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(10, 10, 11, 0.6);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  transition: background var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
  z-index: 2;
}
.card:hover .card__arrow {
  background: var(--color-accent);
  border-color: var(--color-accent);
  transform: rotate(-45deg);
  color: #0A0A0B;
}

/* ============ SKILLS STRIP ============ */
.skills {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
@media (max-width: 720px) {
  .skills { grid-template-columns: repeat(2, 1fr); }
}
.skill {
  padding: var(--space-5) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  text-align: center;
  transition: border-color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.skill:hover {
  border-color: var(--color-border-strong);
  background: var(--color-surface);
}
.skill__icon {
  width: 28px;
  height: 28px;
  margin: 0 auto var(--space-2);
  opacity: 0.7;
  filter: invert(1);
  transition: opacity var(--dur-fast) var(--ease-out), filter var(--dur-fast) var(--ease-out);
}
.skill:hover .skill__icon {
  opacity: 1;
  filter: invert(1) sepia(1) saturate(5) hue-rotate(195deg) brightness(1.1);
}
.skill__name {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-text);
}
.skill__cat {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-dim);
  margin-top: var(--space-2);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

/* ============ SECTION HEADERS ============ */
.section-header {
  display: flex;
  align-items: end;
  justify-content: space-between;
  margin-bottom: var(--space-7);
  gap: var(--space-5);
  flex-wrap: wrap;
}
.section-header__title {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: var(--tracking-display);
}
.section-header__link {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

/* ============ SECTION LABELS & BREAKS ============ */
.section-label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--color-accent);
  padding: var(--space-5) 0 var(--space-3);
}
.section-break {
  padding: var(--space-7) 0 var(--space-3);
}
.section-break__line {
  height: 1px;
  background: var(--color-accent);
  opacity: 0.3;
  margin-bottom: var(--space-5);
}

/* ============ WORK PAGE GRID ============ */
.work-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}
.work-grid--2col {
  grid-template-columns: repeat(2, 1fr);
}
@media (max-width: 1023px) {
  .work-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 719px) {
  .work-grid,
  .work-grid--2col { grid-template-columns: 1fr; }
}

.work-tile {
  position: relative;
  aspect-ratio: 16 / 10;
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: block;
  color: var(--color-text);
  isolation: isolate;
  transition: transform 350ms cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 350ms cubic-bezier(0.16, 1, 0.3, 1);
}
.work-tile__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 500ms cubic-bezier(0.16, 1, 0.3, 1);
}
.work-tile__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.75) 0%, rgba(0,0,0,0.2) 50%, transparent 100%);
  z-index: 1;
  transition: background 350ms cubic-bezier(0.16, 1, 0.3, 1);
}
.work-tile__name {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-4) var(--space-5);
  z-index: 2;
  font-size: var(--text-lg);
  font-weight: 600;
  letter-spacing: var(--tracking-tight);
  opacity: 0.85;
  transition: opacity 300ms cubic-bezier(0.16, 1, 0.3, 1),
              transform 300ms cubic-bezier(0.16, 1, 0.3, 1);
}
.work-tile__badge {
  position: absolute;
  top: var(--space-3);
  right: var(--space-3);
  z-index: 2;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-accent);
  background: rgba(10, 10, 11, 0.8);
  border: 1px solid var(--color-accent);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
}

/* Hover */
.work-tile:hover {
  transform: scale(1.06);
  z-index: 10;
  box-shadow: 0 16px 48px rgba(0,0,0,0.4);
}
.work-tile:hover .work-tile__img {
  transform: scale(1.05);
}
.work-tile:hover .work-tile__overlay {
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.3) 50%, transparent 100%);
}
.work-tile:hover .work-tile__name {
  opacity: 1;
  transform: translateY(-2px);
}

/* Focus (keyboard) */
.work-tile:focus-visible {
  transform: scale(1.06);
  z-index: 10;
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.4);
}
.work-tile:focus-visible .work-tile__img { transform: scale(1.05); }
.work-tile:focus-visible .work-tile__overlay {
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.3) 50%, transparent 100%);
}
.work-tile:focus-visible .work-tile__name { opacity: 1; transform: translateY(-2px); }

/* Upcoming */
.work-tile--upcoming {
  filter: grayscale(100%);
  opacity: 0.55;
}
.work-tile--upcoming:hover {
  opacity: 0.65;
  filter: grayscale(100%);
}

/* Mobile tap feedback */
.work-tile:active { transform: scale(0.98); }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .work-tile,
  .work-tile__img,
  .work-tile__overlay,
  .work-tile__name { transition: none; }
}

/* ============ UPCOMING CARDS ============ */
.card--upcoming { opacity: 0.55; }
.card--upcoming:hover { transform: none; box-shadow: none; border-color: var(--color-border); }
.card--upcoming .card__media img { filter: grayscale(0.5); }
.card--upcoming:hover .card__media img { transform: none; }
.card--upcoming:hover .card__arrow { background: rgba(10,10,11,0.6); border-color: var(--color-border-strong); transform: none; color: var(--color-text); }
.card__badge {
  position: absolute;
  top: var(--space-3);
  left: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  color: var(--color-accent);
  background: var(--color-bg);
  border: 1px solid var(--color-accent);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-sm);
  z-index: 2;
}

/* Section accent line removed in V2.5 — headings provide sufficient hierarchy */

/* ============ MOTION ENTRY ============ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 800ms var(--ease-out), transform 800ms var(--ease-out);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ HOBBY STRIP ============ */
.hobbies {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
  padding-block: var(--space-6);
  border-block: 1px solid var(--color-border);
}
@media (max-width: 720px) {
  .hobbies { grid-template-columns: repeat(2, 1fr); }
}
.hobby {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  transition: color var(--dur-fast) var(--ease-out);
}
.hobby:hover { color: var(--color-accent); }
.hobby svg {
  width: 24px;
  height: 24px;
  stroke: currentColor;
  stroke-width: 1.5;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.hobby__label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}