/* ── Design tokens ── */
:root {
  --color-bg: #080a0c;
  --color-bg-elevated: #0e1216;
  --color-surface: #141a20;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-text: #f5f7fa;
  --color-text-muted: #94a3b8;
  --color-accent: #10b981;
  --color-accent-hover: #34d399;
  --color-accent-glow: rgba(16, 185, 129, 0.28);
  --color-racing: #e10600;
  --color-racing-glow: rgba(225, 6, 0, 0.35);
  --color-photo: #f59e0b;
  --color-photo-glow: rgba(245, 158, 11, 0.25);

  --font-sans: "Inter", system-ui, -apple-system, sans-serif;
  --font-display: "Syne", var(--font-sans);

  --container-max: 72rem;
  --navbar-height: 4.5rem;
  --radius: 0.5rem;
  --transition: 220ms ease;
  --transition-slow: 420ms cubic-bezier(0.22, 1, 0.36, 1);
}

/* ── Reset & base ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

.grain {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grain-shift 8s steps(10) infinite;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

/* ── Layout ── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

main {
  flex: 1;
}

/* ── Navbar ── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--navbar-height);
  background: rgba(8, 10, 12, 0.72);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition:
    background var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}

.navbar--scrolled {
  background: rgba(8, 10, 12, 0.92);
  border-bottom-color: var(--color-border);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.navbar__brand {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-weight: 600;
  font-size: 1.125rem;
  letter-spacing: -0.02em;
  transition: opacity var(--transition);
}

.navbar__brand:hover {
  opacity: 0.85;
}

.navbar__brand-mark {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
  background: var(--color-racing);
  box-shadow:
    0 0 12px var(--color-racing-glow),
    0 0 20px var(--color-accent-glow);
  animation: brand-pulse 2.4s ease-in-out infinite;
}

.navbar__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.25rem;
  height: 2.25rem;
  padding: 0.375rem;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color var(--transition);
}

.navbar__toggle:hover {
  border-color: rgba(16, 185, 129, 0.4);
}

.navbar__toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: transform var(--transition), opacity var(--transition);
}

.navbar__toggle[aria-expanded="true"] .navbar__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.navbar__toggle[aria-expanded="true"] .navbar__toggle-bar:nth-child(2) {
  opacity: 0;
}

.navbar__toggle[aria-expanded="true"] .navbar__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.navbar__list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.navbar__link {
  display: block;
  padding: 0.5rem 1rem;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius);
  transition: color var(--transition), background var(--transition);
}

.navbar__link:hover {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.05);
}

.navbar__link--active {
  color: var(--color-accent);
}

.navbar__link--active:hover {
  color: var(--color-accent-hover);
  background: rgba(16, 185, 129, 0.08);
}

/* ── Hero ── */
.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: calc(100dvh - var(--navbar-height));
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 50% at 20% 40%, rgba(225, 6, 0, 0.06), transparent 55%),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(245, 158, 11, 0.05), transparent 50%),
    var(--color-bg);
}

.hero__layout {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr minmax(16rem, 22rem);
  gap: 3rem;
  align-items: center;
  padding-block: 3rem 5rem;
}

.hero__content {
  max-width: 38rem;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-bottom: 1.25rem;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.03);
}

.hero__badge--f1 {
  color: #ff6b6b;
  border-color: rgba(225, 6, 0, 0.35);
  background: rgba(225, 6, 0, 0.08);
}

.hero__badge--photo {
  color: var(--color-photo);
  border-color: rgba(245, 158, 11, 0.35);
  background: rgba(245, 158, 11, 0.08);
}

.hero__badge-dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--color-racing);
  box-shadow: 0 0 8px var(--color-racing-glow);
  animation: brand-pulse 1.8s ease-in-out infinite;
}

.hero__role {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 1rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.hero__role::before {
  content: "";
  width: 1.75rem;
  height: 2px;
  background: linear-gradient(90deg, var(--color-racing), var(--color-accent));
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2.75rem, 6vw, 4.25rem);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.04em;
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, #fff 30%, #cbd5e1 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__tagline {
  font-size: clamp(1.0625rem, 2.5vw, 1.2rem);
  line-height: 1.7;
  color: var(--color-text-muted);
  max-width: 34rem;
  margin-bottom: 2rem;
}

.hero__telemetry {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-border);
}

.hero__telemetry span {
  padding: 0.25rem 0.625rem;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: 0.25rem;
  background: rgba(255, 255, 255, 0.02);
  font-variant-numeric: tabular-nums;
}

.hero__visual {
  position: relative;
  justify-self: end;
  width: 100%;
  max-width: 22rem;
}

.hero__photo-frame {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: calc(var(--radius) * 2);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: var(--color-surface);
  box-shadow:
    0 0 0 1px rgba(16, 185, 129, 0.08),
    0 24px 64px rgba(0, 0, 0, 0.45),
    0 0 80px rgba(16, 185, 129, 0.06);
  animation: hero-photo-float 6s ease-in-out infinite;
}

.hero__photo-ring {
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  border: 2px solid transparent;
  background:
    linear-gradient(var(--color-bg), var(--color-bg)) padding-box,
    linear-gradient(135deg, var(--color-racing), var(--color-accent), var(--color-photo)) border-box;
  opacity: 0.65;
  z-index: 2;
  pointer-events: none;
  animation: ring-rotate 8s linear infinite;
}

.hero__photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: contrast(1.04) saturate(1.05);
  transition: transform var(--transition-slow);
}

.hero__photo-frame:hover .hero__photo {
  transform: scale(1.04);
}

.hero__exif {
  position: absolute;
  bottom: 1rem;
  left: 1rem;
  right: 1rem;
  z-index: 3;
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.85);
  background: rgba(8, 10, 12, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-variant-numeric: tabular-nums;
}

.hero__racing-stripe {
  position: absolute;
  top: 0;
  left: 0;
  width: 5px;
  height: 100%;
  z-index: 3;
  background: linear-gradient(
    180deg,
    var(--color-racing) 0%,
    var(--color-racing) 33%,
    #fff 33%,
    #fff 66%,
    var(--color-racing) 66%,
    var(--color-racing) 100%
  );
}

.hero__marquee {
  position: relative;
  z-index: 1;
  margin-top: auto;
  padding-block: 1rem;
  border-top: 1px solid var(--color-border);
  background: rgba(8, 10, 12, 0.6);
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}

.hero__marquee-track {
  display: flex;
  width: max-content;
  animation: marquee 28s linear infinite;
}

.hero__marquee-item {
  flex-shrink: 0;
  padding-inline: 2rem;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  white-space: nowrap;
}

.hero__marquee-item::after {
  content: "◆";
  margin-left: 2rem;
  font-size: 0.5rem;
  color: var(--color-racing);
  vertical-align: middle;
}

.hero__scroll {
  position: absolute;
  bottom: 5.5rem;
  left: 50%;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.625rem;
  transform: translateX(-50%);
  color: var(--color-text-muted);
  transition: color var(--transition);
}

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

.hero__scroll-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero__scroll-lights {
  display: flex;
  gap: 0.375rem;
}

.hero__scroll-lights span {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.15);
  animation: f1-lights 3.5s ease-in-out infinite;
}

.hero__scroll-lights span:nth-child(1) { animation-delay: 0s; }
.hero__scroll-lights span:nth-child(2) { animation-delay: 0.15s; }
.hero__scroll-lights span:nth-child(3) { animation-delay: 0.3s; }
.hero__scroll-lights span:nth-child(4) { animation-delay: 0.45s; }
.hero__scroll-lights span:nth-child(5) { animation-delay: 0.6s; }

.viewfinder {
  position: absolute;
  width: 1.25rem;
  height: 1.25rem;
  z-index: 4;
  pointer-events: none;
  border-color: rgba(255, 255, 255, 0.55);
  border-style: solid;
  opacity: 0.85;
}

.viewfinder--tl {
  top: 0.875rem;
  left: 0.875rem;
  border-width: 2px 0 0 2px;
}

.viewfinder--tr {
  top: 0.875rem;
  right: 0.875rem;
  border-width: 2px 2px 0 0;
}

.viewfinder--bl {
  bottom: 0.875rem;
  left: 0.875rem;
  border-width: 0 0 2px 2px;
}

.viewfinder--br {
  bottom: 0.875rem;
  right: 0.875rem;
  border-width: 0 2px 2px 0;
}

.hero__speedlines {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    -12deg,
    transparent,
    transparent 80px,
    rgba(255, 255, 255, 0.012) 80px,
    rgba(255, 255, 255, 0.012) 81px
  );
  animation: speedlines 20s linear infinite;
  mask-image: linear-gradient(90deg, transparent, black 30%, black 70%, transparent);
}

.hero__checkered {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 12rem;
  height: 12rem;
  opacity: 0.04;
  background-image:
    linear-gradient(45deg, #fff 25%, transparent 25%),
    linear-gradient(-45deg, #fff 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #fff 75%),
    linear-gradient(-45deg, transparent 75%, #fff 75%);
  background-size: 1.25rem 1.25rem;
  background-position:
    0 0,
    0 0.625rem,
    0.625rem -0.625rem,
    -0.625rem 0;
  mask-image: radial-gradient(circle at 100% 100%, black, transparent 70%);
}

.hero__orb--4 {
  width: 20rem;
  height: 20rem;
  top: 10%;
  right: 15%;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.2) 0%, transparent 70%);
  animation: hero-float-2 26s ease-in-out infinite reverse;
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.45;
  will-change: transform;
}

.hero__orb--1 {
  width: 28rem;
  height: 28rem;
  top: -8rem;
  left: -6rem;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.55) 0%, transparent 70%);
  animation: hero-float-1 18s ease-in-out infinite;
}

.hero__orb--2 {
  width: 22rem;
  height: 22rem;
  bottom: -4rem;
  right: -4rem;
  background: radial-gradient(circle, rgba(52, 211, 153, 0.35) 0%, transparent 70%);
  animation: hero-float-2 22s ease-in-out infinite;
}

.hero__orb--3 {
  width: 16rem;
  height: 16rem;
  top: 40%;
  left: 55%;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.25) 0%, transparent 70%);
  animation: hero-float-3 14s ease-in-out infinite;
}

.hero__grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 4rem 4rem;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 20%, transparent 75%);
  animation: hero-grid-drift 30s linear infinite;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 1.5rem;
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    background var(--transition),
    color var(--transition),
    border-color var(--transition),
    box-shadow var(--transition),
    transform var(--transition);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-accent), #059669);
  color: #052e1f;
  box-shadow: 0 0 24px var(--color-accent-glow);
}

.btn--primary:hover {
  background: linear-gradient(135deg, var(--color-accent-hover), var(--color-accent));
  box-shadow: 0 0 36px rgba(16, 185, 129, 0.4);
}

.btn--secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--secondary:hover {
  border-color: rgba(16, 185, 129, 0.45);
  background: rgba(16, 185, 129, 0.06);
  color: var(--color-accent-hover);
}

@keyframes hero-float-1 {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(3rem, 2rem) scale(1.08);
  }
}

@keyframes hero-float-2 {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  50% {
    transform: translate(-2.5rem, -1.5rem) scale(1.05);
  }
}

@keyframes hero-float-3 {
  0%,
  100% {
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    transform: translate(calc(-50% + 2rem), calc(-50% - 1.5rem)) scale(1.12);
  }
}

@keyframes hero-grid-drift {
  from {
    background-position: 0 0;
  }
  to {
    background-position: 4rem 4rem;
  }
}

@keyframes brand-pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.65;
    transform: scale(0.88);
  }
}

@keyframes hero-photo-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes ring-rotate {
  from {
    filter: hue-rotate(0deg);
  }
  to {
    filter: hue-rotate(360deg);
  }
}

@keyframes marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

@keyframes f1-lights {
  0%,
  15%,
  100% {
    background: rgba(255, 255, 255, 0.1);
    box-shadow: none;
  }
  20%,
  80% {
    background: var(--color-racing);
    box-shadow: 0 0 12px var(--color-racing-glow);
  }
}

@keyframes speedlines {
  from {
    transform: translateX(-4%);
  }
  to {
    transform: translateX(4%);
  }
}

@keyframes grain-shift {
  0%,
  100% {
    transform: translate(0, 0);
  }
  10% {
    transform: translate(-2%, -3%);
  }
  30% {
    transform: translate(1%, 2%);
  }
  50% {
    transform: translate(-1%, 1%);
  }
  70% {
    transform: translate(2%, -1%);
  }
  90% {
    transform: translate(-2%, 2%);
  }
}

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity var(--transition-slow),
    transform var(--transition-slow);
  transition-delay: var(--reveal-delay, 0ms);
}

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

.reveal--delay-1 {
  --reveal-delay: 120ms;
}

.reveal--delay-2 {
  --reveal-delay: 240ms;
}

@media (prefers-reduced-motion: reduce) {
  .hero__orb,
  .hero__grid,
  .hero__speedlines,
  .hero__marquee-track,
  .hero__photo-frame,
  .hero__photo-ring,
  .grain,
  .navbar__brand-mark,
  .hero__badge-dot,
  .hero__scroll-lights span {
    animation: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn:hover {
    transform: none;
  }
}

/* ── Section shared ── */
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 2.5rem;
}

.section-title::after {
  content: "";
  display: block;
  width: 3rem;
  height: 3px;
  margin-top: 0.75rem;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--color-racing), var(--color-accent));
}

/* ── About ── */
.about {
  padding-block: 5rem;
  background:
    radial-gradient(ellipse 50% 40% at 100% 0%, rgba(225, 6, 0, 0.04), transparent 55%),
    var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
}

.about__grid {
  display: grid;
  grid-template-columns: minmax(0, 16rem) 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 3rem;
}

.about__photo-wrap {
  position: relative;
  aspect-ratio: 1;
  border-radius: calc(var(--radius) * 2);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow:
    0 0 40px rgba(16, 185, 129, 0.08),
    0 20px 48px rgba(0, 0, 0, 0.3);
  transition:
    transform var(--transition-slow),
    box-shadow var(--transition);
}

.about__photo-wrap:hover {
  transform: translateY(-4px) rotate(-1deg);
  box-shadow:
    0 0 48px rgba(245, 158, 11, 0.12),
    0 24px 56px rgba(0, 0, 0, 0.35);
}

.about__photo-wrap::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.45), rgba(16, 185, 129, 0.35), transparent 70%);
  mask:
    linear-gradient(#fff 0 0) content-box,
    linear-gradient(#fff 0 0);
  mask-composite: exclude;
  pointer-events: none;
  z-index: 2;
}

.about__photo-tag {
  position: absolute;
  top: 0.875rem;
  right: 0.875rem;
  z-index: 3;
  padding: 0.25rem 0.5rem;
  font-size: 0.625rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--color-racing);
  background: rgba(8, 10, 12, 0.8);
  border: 1px solid rgba(225, 6, 0, 0.4);
  border-radius: 0.25rem;
}

.about__photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform var(--transition-slow);
}

.about__photo-wrap:hover .about__photo {
  transform: scale(1.06);
}

.about__bio {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--color-text-muted);
}

.about__passions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-top: 1.5rem;
}

.about__passion {
  padding: 0.4375rem 0.875rem;
  font-size: 0.8125rem;
  font-weight: 600;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.03);
  transition:
    transform var(--transition),
    border-color var(--transition),
    background var(--transition);
}

.about__passion:hover {
  transform: translateY(-2px);
}

.about__passion--f1 {
  color: #ff7b7b;
  border-color: rgba(225, 6, 0, 0.35);
  background: rgba(225, 6, 0, 0.08);
}

.about__passion--photo {
  color: var(--color-photo);
  border-color: rgba(245, 158, 11, 0.35);
  background: rgba(245, 158, 11, 0.08);
}

.about__passion--chess {
  color: #a5b4fc;
  border-color: rgba(165, 180, 252, 0.3);
  background: rgba(165, 180, 252, 0.08);
}

.about__passion--travel {
  color: var(--color-accent-hover);
  border-color: rgba(16, 185, 129, 0.35);
  background: rgba(16, 185, 129, 0.08);
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.about__stat {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  padding: 1.5rem;
  border-radius: calc(var(--radius) * 2);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  text-align: center;
  transition:
    border-color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}

.about__stat::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 3px;
  background: linear-gradient(180deg, var(--color-racing), var(--color-accent));
  opacity: 0;
  transition: opacity var(--transition);
}

.about__stat:hover {
  border-color: rgba(16, 185, 129, 0.35);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

.about__stat:hover::before {
  opacity: 1;
}

.about__stat-value {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-accent);
}

.about__stat-label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
}

/* ── Skills ── */
.skills {
  padding-block: 5rem;
  background: var(--color-bg-elevated);
  border-top: 1px solid var(--color-border);
}

.skills__categories {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.skills__group {
  display: flex;
  align-items: flex-start;
  gap: 2.5rem;
  padding-block: 2rem;
  border-bottom: 1px solid var(--color-border);
}

.skills__group:first-child {
  padding-top: 0;
}

.skills__group:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.skills__group-title {
  flex: 0 0 11rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0;
  padding-top: 0.875rem;
}

.skills__grid {
  flex: 1;
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
}

.skill-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.625rem;
  min-width: 6.5rem;
  padding: 1.125rem 0.875rem;
  border-radius: calc(var(--radius) * 2);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  text-align: center;
  transition:
    border-color var(--transition),
    background var(--transition),
    transform var(--transition);
}

.skill-card:hover {
  border-color: rgba(16, 185, 129, 0.35);
  background: rgba(16, 185, 129, 0.04);
  transform: translateY(-2px);
}

.skill-card__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius);
  color: var(--color-accent);
  background: rgba(16, 185, 129, 0.1);
}

.skill-card__icon svg {
  width: 1.375rem;
  height: 1.375rem;
}

.skill-card__name {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.3;
}

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

/* ── Contact ── */
.contact {
  padding-block: 5rem;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.contact__inner {
  max-width: 32rem;
  margin-inline: auto;
  text-align: center;
}

.contact .section-title::after {
  margin-inline: auto;
}

.contact__subtitle {
  margin-top: -1.5rem;
  margin-bottom: 2.5rem;
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text-muted);
}

.contact__details {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
  margin: 0;
  padding: 0;
  text-align: left;
}

.contact__detail {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition:
    border-color var(--transition),
    background var(--transition),
    transform var(--transition);
}

.contact__detail:hover {
  border-color: rgba(16, 185, 129, 0.4);
  background: rgba(16, 185, 129, 0.04);
  transform: translateX(6px);
}

.contact__detail-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: var(--radius);
  color: var(--color-accent);
  background: rgba(16, 185, 129, 0.08);
}

.contact__detail-icon svg {
  width: 1.25rem;
  height: 1.25rem;
}

.contact__detail-body {
  display: flex;
  flex-direction: column;
  gap: 0.125rem;
  min-width: 0;
}

.contact__detail-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.contact__detail-value {
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--color-text);
  word-break: break-word;
}

.contact__detail-value a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

.contact__detail-value a:hover {
  color: var(--color-accent);
}

.contact__detail-separator {
  color: var(--color-text-muted);
}

/* ── Projects ── */
.projects {
  padding-block: 5rem;
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
}

.projects__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin-bottom: 2.5rem;
}

.projects__filter {
  padding: 0.5rem 1rem;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  cursor: pointer;
  transition:
    color var(--transition),
    background var(--transition),
    border-color var(--transition);
}

.projects__filter:hover {
  color: var(--color-text);
  border-color: rgba(16, 185, 129, 0.35);
}

.projects__filter.is-active {
  color: #052e1f;
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.projects__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.project-card {
  display: flex;
  flex-direction: column;
  border-radius: calc(var(--radius) * 2);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition:
    border-color var(--transition),
    transform var(--transition-slow),
    opacity var(--transition),
    box-shadow var(--transition);
  transition-delay: var(--card-delay, 0ms);
}

.project-card:hover {
  border-color: rgba(16, 185, 129, 0.4);
  transform: translateY(-6px);
  box-shadow:
    0 16px 40px rgba(0, 0, 0, 0.28),
    0 0 0 1px rgba(16, 185, 129, 0.08);
}

.project-card.is-hidden {
  display: none;
}

.project-card__image-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-bg-elevated);
}

.project-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 300ms ease;
}

.project-card:hover .project-card__image {
  transform: scale(1.03);
}

.project-card__category {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-accent-hover);
  background: rgba(11, 15, 14, 0.85);
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 999px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.project-card__body {
  display: flex;
  flex-direction: column;
  flex: 1;
  gap: 0.75rem;
  padding: 1.25rem;
}

.project-card__title {
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.project-card__desc {
  flex: 1;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.btn--sm {
  align-self: flex-start;
  padding: 0.625rem 1.125rem;
  font-size: 0.875rem;
}

.projects__empty {
  margin-top: 2rem;
  text-align: center;
  font-size: 0.9375rem;
  color: var(--color-text-muted);
}

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

  .project-card:hover .project-card__image {
    transform: none;
  }
}

/* ── Footer ── */
.footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-elevated);
  padding-block: 2rem;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
  text-align: center;
}

.footer__copy {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

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

.footer__link {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}

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

/* ── Responsive ── */
@media (max-width: 768px) {
  .navbar__toggle {
    display: flex;
  }

  .navbar__nav {
    position: absolute;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    background: rgba(11, 15, 14, 0.97);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    padding: 1rem 1.5rem 1.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-0.5rem);
    transition:
      opacity var(--transition),
      visibility var(--transition),
      transform var(--transition);
  }

  .navbar__nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .navbar__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
  }

  .navbar__link {
    padding: 0.75rem 1rem;
  }

  .hero__layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
    padding-block: 2.5rem 6rem;
    text-align: center;
  }

  .hero__content {
    max-width: none;
  }

  .hero__role {
    justify-content: center;
  }

  .hero__badges {
    justify-content: center;
  }

  .hero__telemetry {
    justify-content: center;
  }

  .hero__visual {
    justify-self: center;
    max-width: 16rem;
  }

  .hero__scroll {
    bottom: 5rem;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .about {
    padding-block: 3.5rem;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
    justify-items: center;
    text-align: center;
  }

  .about__photo-wrap {
    max-width: 14rem;
    width: 100%;
  }

  .about .section-title::after {
    margin-inline: auto;
  }

  .about__stats {
    grid-template-columns: 1fr;
  }

  .skills {
    padding-block: 3.5rem;
  }

  .skills__group {
    flex-direction: column;
    gap: 1.25rem;
    padding-block: 1.75rem;
  }

  .skills__group-title {
    flex: none;
    padding-top: 0;
    text-align: center;
    width: 100%;
  }

  .skills__grid {
    justify-content: center;
  }

  .projects {
    padding-block: 3.5rem;
  }

  .projects__grid {
    grid-template-columns: 1fr;
  }

  .projects__filters {
    gap: 0.5rem;
  }

  .contact {
    padding-block: 3.5rem;
  }
}

@media (min-width: 640px) and (max-width: 1024px) {
  .projects__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 640px) and (max-width: 768px) {
  .about__stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 640px) {
  .footer__inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}