:root {
  --bg: #0a0a0a;
  --fg: #fafafa;
  --muted: #1a1a1a;
  --muted-fg: #737373;
  --accent: #ff3d00;
  --accent-fg: #0a0a0a;
  --border: #262626;
  --input: #1a1a1a;
  --card: #0f0f0f;
  --ring: #ff3d00;

  --font-sans: 'Inter Tight', 'Inter', system-ui, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  --ease: cubic-bezier(0.25, 0, 0, 1);
}
[data-theme='light'] {
  --bg: #fafafa;
  --fg: #0a0a0a;
  --muted: #f0f0f0;
  --muted-fg: #525252;
  --accent: #ff3d00;
  --accent-fg: #fafafa;
  --border: #d4d4d4;
  --input: #f5f5f5;
  --card: #ffffff;
  --ring: #ff3d00;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  letter-spacing: -0.01em;
  transition:
    background 0.25s var(--ease),
    color 0.25s var(--ease);
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.018;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
@media (min-width: 768px) {
  .container {
    padding: 0 48px;
  }
}
@media (min-width: 1024px) {
  .container {
    padding: 0 64px;
  }
}

.display {
  font-size: clamp(3.5rem, 10vw, 10rem);
  font-weight: 800;
  letter-spacing: -0.06em;
  line-height: 1;
}
.h1 {
  font-size: clamp(2.5rem, 6vw, 6rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 1;
}
.h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
}
.h3 {
  font-size: clamp(1.25rem, 2.5vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
}
.lead {
  font-size: clamp(1rem, 1.5vw, 1.25rem);
  line-height: 1.6;
  color: var(--muted-fg);
  letter-spacing: -0.01em;
}
.label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted-fg);
}
.accent-text {
  color: var(--accent);
}
.serif-text {
  font-family: var(--font-serif);
  font-style: italic;
}
.mono {
  font-family: var(--font-mono);
}

hr {
  border: none;
  border-top: 1px solid var(--border);
}

#nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  transition: background 0.25s var(--ease);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}
.nav-logo {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg);
  text-decoration: none;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
  list-style: none;
}
@media (max-width: 767px) {
  .nav-links {
    display: none;
  }
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted-fg);
  text-decoration: none;
  position: relative;
  transition: color 150ms var(--ease);
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 150ms var(--ease);
}
.nav-links a:hover {
  color: var(--fg);
}
.nav-links a:hover::after {
  transform: scaleX(1);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.theme-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--muted-fg);
  cursor: pointer;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 6px 12px;
  transition: all 150ms var(--ease);
}
.theme-btn:hover {
  border-color: var(--fg);
  color: var(--fg);
}

.hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-direction: column;
  gap: 5px;
}
@media (max-width: 767px) {
  .hamburger {
    display: flex;
  }
}
.hamburger span {
  display: block;
  width: 22px;
  height: 1px;
  background: var(--fg);
  transition: all 0.25s;
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 60px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg);
  z-index: 99;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 0 40px;
  gap: 32px;
  border-top: 1px solid var(--border);
}
.mobile-nav.open {
  display: flex;
}
.mobile-nav a {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--fg);
  text-decoration: none;
  transition: color 150ms;
}
.mobile-nav a:hover {
  color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  border: none;
  background: none;
  transition: all 150ms var(--ease);
  white-space: nowrap;
  position: relative;
  padding: 8px 0;
}
.btn:active {
  transform: translateY(1px);
}
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.btn:disabled {
  pointer-events: none;
  opacity: 0.5;
}

.btn-primary {
  color: var(--accent);
}
.btn-primary::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(1);
  transform-origin: left;
  transition: transform 150ms var(--ease);
}
.btn-primary:hover::after {
  transform: scaleX(1.08);
}

.btn-secondary {
  color: var(--fg);
  border: 1px solid var(--fg);
  padding: 10px 24px;
  transition:
    background 150ms var(--ease),
    color 150ms var(--ease);
}
.btn-secondary:hover {
  background: var(--fg);
  color: var(--bg);
}

.btn-ghost {
  color: var(--muted-fg);
  padding: 8px 16px;
}
.btn-ghost::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: var(--fg);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 150ms var(--ease);
}
.btn-ghost:hover {
  color: var(--fg);
}
.btn-ghost:hover::after {
  transform: scaleX(1);
}

#hero {
  padding: 160px 0 120px;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 40px;
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  animation: pulse-dot 2s infinite;
}
@keyframes pulse-dot {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(0.8);
  }
}

.hero-name {
  font-size: clamp(4rem, 12vw, 10rem);
  font-weight: 900;
  letter-spacing: -0.06em;
  color: #d4d6d8;
  line-height: 0.9;
  margin-bottom: 48px;
  background: radial-gradient(
    circle 50rem at var(--x, -100px) var(--y, -100px),
    var(--accent) 0%,
    var(--muted-fg) 50%,
    transparent 100%
  );
  background-clip: text;
  -webkit-background-clip: text;

  transition: color 0.3s ease;
  position: relative;
}
.hero-name:hover {
  color: transparent;
}
.hero-name .line-accent {
  color: var(--accent);
}

.hero-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: end;
  border-top: 1px solid var(--border);
  padding-top: 40px;
  margin-top: 0;
}
@media (max-width: 640px) {
  .hero-meta {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

.hero-desc {
  max-width: 440px;
}
.hero-actions {
  display: flex;
  gap: 24px;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
}
@media (max-width: 640px) {
  .hero-actions {
    justify-content: flex-start;
  }
}

.hero-bg-text {
  position: absolute;
  bottom: -20px;
  right: -20px;
  font-size: clamp(120px, 20vw, 200px);
  font-weight: 900;
  letter-spacing: -0.08em;
  color: var(--fg);
  opacity: 0.025;
  line-height: 1;
  pointer-events: none;
  user-select: none;
}
@media (max-width: 640px) {
  .hero-bg-text {
    display: none;
  }
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 80px;
  flex-wrap: wrap;
}

#about {
  padding: 120px 0;
  border-bottom: 1px solid var(--border);
}
.about-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 80px;
  align-items: start;
}
@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

.about-body p {
  font-size: 1.125rem;
  line-height: 1.75;
  color: var(--muted-fg);
  margin-bottom: 20px;
  letter-spacing: -0.01em;
}
.about-body p strong {
  color: var(--fg);
  font-weight: 600;
}
.about-body p:last-child {
  margin-bottom: 0;
}

.about-sidebar {
  display: flex;
  flex-direction: column;
  gap: 32px;
  border-top: 2px solid var(--accent);
  padding-top: 32px;
}
.about-fact-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted-fg);
  margin-bottom: 6px;
}
.about-fact-value {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--fg);
}

#skills {
  padding: 120px 0;
  background: var(--muted);
  border-bottom: 1px solid var(--border);
}
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0;
  border: 1px solid var(--border);
}
.skill-group {
  padding: 32px;
  border-right: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  transition: background 150ms var(--ease);
}
.skill-group:hover {
  background: var(--card);
}
.skill-group-title {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.skill-group-title::before {
  content: '';
  display: inline-block;
  width: 16px;
  height: 1px;
  background: var(--accent);
}
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.skill-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 4px 10px;
  border: 1px solid var(--border);
  color: var(--muted-fg);
  transition: all 150ms var(--ease);
  cursor: default;
}
.skill-tag:hover {
  border-color: var(--fg);
  color: var(--fg);
}
#experience {
  padding: 120px 0;
  border-bottom: 1px solid var(--border);
}

.exp-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 64px;
  padding: 80px 0;
  border-bottom: 1px solid var(--border);
  align-items: start;
  position: relative;
}

@media (max-width: 768px) {
  .exp-item {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 48px 0;
  }
}

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

.exp-meta {
  position: -webkit-sticky;
  position: sticky;
  top: 100px;
  z-index: 10;
  align-self: start;
}

@media (max-width: 768px) {
  .exp-meta {
    position: static;
  }
}

.exp-date {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted-fg);
  margin-bottom: 8px;
}

.exp-badge {
  display: inline-block;
  background: var(--accent);
  color: var(--accent-fg);
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 3px 8px;
  margin-top: 8px;
}

.exp-content {
}

.exp-company {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 4px;
}

.exp-role {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
}

.exp-stack {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--muted-fg);
  margin-bottom: 20px;
  padding: 8px 12px;
  border-left: 2px solid var(--accent);
  background: var(--muted);
}

.exp-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 0;
}

.exp-list li {
  font-size: 0.95rem;
  color: var(--muted-fg);
  display: flex;
  gap: 12px;
  align-items: flex-start;
  line-height: 1.6;
}

.exp-list li::before {
  content: '—';
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 1px;
}

#projects {
  padding: 120px 0;
  background: var(--muted);
  border-bottom: 1px solid var(--border);
}

.projects-marquee-wrapper {
  width: 100%;
  overflow: hidden;
  position: relative;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);

  mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, #000 8%, #000 92%, transparent);
}

.projects-marquee-content {
  display: flex;
  align-items: stretch;
  width: max-content;
  animation: scrollMarquee 15s linear infinite;
}

.projects-track {
  display: flex;
  align-items: stretch;
}

.project-card {
  width: 380px;
  flex-shrink: 0;
  padding: 40px;
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  transition: background 150ms var(--ease);
  overflow: hidden;
}

.project-card:hover {
  background: var(--card);
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 40px;
  width: 32px;
  height: 2px;
  background: var(--accent);
}

.projects-marquee-wrapper:hover .projects-marquee-content {
  animation-play-state: paused;
}

.loop-checkpoint {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0 50px;
  background: transparent;
  border-right: 1px solid var(--border);
  flex-shrink: 0;
  user-select: none;
}

.checkpoint-line {
  width: 1px;
  height: 80px;
  background: linear-gradient(to bottom, transparent, var(--border), transparent);
}

.checkpoint-badge {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 8px 16px;
  text-transform: uppercase;
  background: var(--muted);
  white-space: nowrap;
  margin: 16px 0;
}

.project-type {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted-fg);
  margin-bottom: 24px;
  padding-top: 20px;
}
.project-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 16px;
  color: var(--fg);
}
.project-desc {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--muted-fg);
  margin-bottom: 24px;
  flex: 1;
}
.project-achievement {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  margin-bottom: 24px;
  letter-spacing: 0.05em;
}
.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 32px;
}
.stack-tag {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  padding: 2px 8px;
  border: 1px solid var(--border);
  color: var(--muted-fg);
  letter-spacing: 0.05em;
}
.project-links {
  display: flex;
  gap: 20px;
  align-items: center;
  border-top: 1px solid var(--border);
  padding-top: 24px;
}

@keyframes scrollMarquee {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

#achievements {
  padding: 120px 0;
  border-bottom: 1px solid var(--border);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border: 1px solid var(--border);
}
@media (max-width: 640px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.stat-card {
  padding: 48px 32px;
  border-right: 1px solid var(--border);
  text-align: center;
  position: relative;
  transition: background 150ms var(--ease);
}
.stat-card:hover {
  background: var(--muted);
}
.stat-card:last-child {
  border-right: none;
}

.stat-num {
  font-size: clamp(3rem, 6vw, 6rem);
  font-weight: 900;
  letter-spacing: -0.06em;
  line-height: 1;
  color: var(--accent);
  display: block;
  margin-bottom: 8px;
}
.stat-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted-fg);
  line-height: 1.4;
}

#contact {
  padding: 160px 0;
}
.contact-grid {
  display: grid;
  grid-template-columns: 5fr 4fr;
  gap: 80px;
  align-items: start;
  border-top: 1px solid var(--border);
  padding-top: 80px;
}
@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

.contact-headline {
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 0.95;
  margin-bottom: 40px;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.contact-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: var(--muted-fg);
  transition: color 150ms var(--ease);
  gap: 16px;
}
.contact-link:hover {
  color: var(--fg);
}
.contact-link:hover .cl-arrow {
  transform: translate(4px, -4px);
}
.cl-name {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.cl-value {
  font-size: 0.9rem;
  font-weight: 500;
}
.cl-arrow {
  width: 20px;
  height: 20px;
  transition: transform 150ms var(--ease);
  flex-shrink: 0;
}
.cl-arrow::before,
.cl-arrow::after {
  content: none;
}

.arrow-icon {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
  transition: transform 150ms var(--ease);
  flex-shrink: 0;
}
.contact-link:hover .arrow-icon {
  transform: translate(3px, -3px);
}

.form-group {
  margin-bottom: 24px;
}
.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted-fg);
  margin-bottom: 8px;
}
.form-input,
.form-textarea {
  width: 100%;
  background: var(--input);
  border: 1px solid var(--border);
  border-radius: 0;
  height: 48px;
  padding: 0 16px;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--fg);
  outline: none;
  transition: border-color 150ms var(--ease);
  -webkit-appearance: none;
}
.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--muted-fg);
}
.form-input:focus,
.form-textarea:focus {
  border-color: var(--accent);
}
.form-textarea {
  height: auto;
  min-height: 120px;
  padding: 16px;
  resize: vertical;
}
.form-feedback {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  min-height: 20px;
  margin-top: 12px;
}

footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-mono {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted-fg);
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 0.5s var(--ease),
    transform 0.5s var(--ease);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.text-accent {
  color: var(--accent);
}
.text-muted {
  color: var(--muted-fg);
}

.nav-links a.active {
  color: var(--fg);
}
.nav-links a.active::after {
  transform: scaleX(1);
}