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

*::-webkit-scrollbar {
  display: none;
}


:root {
  --primary-black: #0a0a0a;
  --secondary-black: #1a1a1a;
  --dark-gray: #2a2a2a;
  --mid-gray: #4a4a4a;
  --light-gray: #9a9a9a;
  --off-white: #f5f5f5;
  --pure-white: #ffffff;
  --accent-gold: #d4af37;
  --accent-blue: #2c5f7c;

  --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-display: 'Georgia', serif;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;

  --transition-fast: 0.2s ease;
  --transition-med: 0.4s ease;
  --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  font-size: 16px;
  overflow: hidden;
	max-height: fit-content;
}

body {
  font-family: var(--font-primary);
  color: var(--primary-black);
  background-color: var(--pure-white);
  line-height: 1.6;
  overflow: hidden;
  height: 100vh;
}

section {
  height: 100%;
  width: 100%;
  padding: var(--spacing-xl) 0;
  position: fixed;
  top: 0;
  left: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.6s ease, visibility 0.6s ease;
  overflow-y: auto;
}

section.active {
  opacity: 1;
  visibility: visible;
}

.section-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.section-container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.main-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.1);
  transition: var(--transition-med);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: var(--spacing-sm) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.logo-text {
  color: var(--primary-black);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-md);
}

.nav-menu a {
  color: var(--mid-gray);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: var(--transition-fast);
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-black);
  transition: var(--transition-fast);
}

.nav-menu a:hover {
  color: var(--primary-black);
}

.nav-menu a:hover::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--primary-black);
  transition: var(--transition-fast);
}

.section-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  padding-top: 20px;
  background: linear-gradient(135deg, var(--off-white) 0%, var(--pure-white) 100%);
}

.hero-container {
  max-width: 1400px;
  width: 100%;
  padding: 0 var(--spacing-md);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

.hero-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--mid-gray);
  margin-bottom: var(--spacing-sm);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 300;
  line-height: 1.1;
  margin-bottom: var(--spacing-md);
  color: var(--primary-black);
}

.hero-title .line {
  display: block;
  overflow: hidden;
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  color: var(--mid-gray);
  margin-bottom: var(--spacing-lg);
  max-width: 600px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.stat-item {
  border-left: 2px solid var(--primary-black);
  padding-left: var(--spacing-sm);
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-black);
  line-height: 1;
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--mid-gray);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-sm);
}

.btn-primary,
.btn-secondary {
  padding: 1rem 2rem;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition-med);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-primary {
  background-color: var(--primary-black);
  color: var(--pure-white);
}

.btn-primary:hover {
  background-color: var(--secondary-black);
  transform: translateY(-2px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--primary-black);
  border: 2px solid var(--primary-black);
}

.btn-secondary:hover {
  background-color: var(--primary-black);
  color: var(--pure-white);
}

.hero-visual {
  position: relative;
  height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.geometric-shape {
  position: absolute;
  background-color: var(--primary-black);
  opacity: 0.05;
}

.shape-1 {
  width: 400px;
  height: 400px;
  top: 10%;
  right: 10%;
  transform: rotate(45deg);
}

.shape-2 {
  width: 250px;
  height: 250px;
  bottom: 20%;
  right: 30%;
  border: 2px solid var(--primary-black);
  background-color: transparent;
  opacity: 0.2;
}

.shape-3 {
  width: 150px;
  height: 150px;
  top: 40%;
  left: 10%;
  border-radius: 50%;
}

.scroll-indicator {
  position: absolute;
  bottom: var(--spacing-lg);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--mid-gray);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background-color: var(--primary-black);
  animation: scrollPulse 2s infinite;
}

@keyframes scrollPulse {
  0%, 100% { transform: scaleY(1); opacity: 0.3; }
  50% { transform: scaleY(1.5); opacity: 1; }
}

.section-header {
  display: flex;
  align-items: baseline;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-xl);
}

.section-number {
  font-size: 1rem;
  font-weight: 700;
  color: var(--light-gray);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 300;
  color: var(--primary-black);
}

.section-about {
  background-color: var(--off-white);
}

.about-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--spacing-xl);
}

.about-intro {
  margin-bottom: var(--spacing-md);
}

.lead-text {
  font-size: 1.4rem;
  line-height: 1.6;
  color: var(--primary-black);
  font-weight: 300;
}

.about-description p {
  margin-bottom: var(--spacing-sm);
  color: var(--mid-gray);
  font-size: 1.05rem;
}

.about-qualities {
  margin-top: var(--spacing-lg);
}

.about-qualities h3 {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.qualities-grid {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
}

.quality-tag {
  padding: 0.5rem 1rem;
  background-color: var(--pure-white);
  border: 1px solid var(--dark-gray);
  font-size: 0.9rem;
  color: var(--primary-black);
  transition: var(--transition-fast);
}

.quality-tag:hover {
  background-color: var(--primary-black);
  color: var(--pure-white);
}

.info-card {
  background-color: var(--pure-white);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.info-card h3 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.info-item {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

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

.info-label {
  font-size: 0.9rem;
  color: var(--mid-gray);
  font-weight: 500;
}

.info-value {
  font-size: 0.95rem;
  color: var(--primary-black);
  text-align: right;
}

.section-skills {
  background-color: var(--pure-white);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-lg);
}

.skill-category h3 {
  font-size: 1.3rem;
  margin-bottom: var(--spacing-md);
  font-weight: 600;
  border-bottom: 2px solid var(--primary-black);
  padding-bottom: var(--spacing-sm);
}

.skill-list {
  list-style: none;
}

.skill-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.skill-name {
  font-size: 1rem;
  color: var(--primary-black);
}

.skill-level {
  font-size: 0.75rem;
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
}

.skill-level.expert {
  background-color: var(--primary-black);
  color: var(--pure-white);
}

.skill-level.advanced {
  background-color: var(--dark-gray);
  color: var(--pure-white);
}

.section-experience {
  background-color: var(--secondary-black);
  color: var(--pure-white);
}

.section-experience .section-number {
  color: var(--mid-gray);
}

.section-experience .section-title {
  color: var(--pure-white);
}

.timeline {
  position: relative;
  padding-left: var(--spacing-xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--dark-gray);
}

.timeline-item {
  position: relative;
  margin-bottom: var(--spacing-xl);
  padding-left: var(--spacing-md);
}

.timeline-marker {
  position: absolute;
  left: -43px;
  top: 8px;
  width: 12px;
  height: 12px;
  background-color: var(--pure-white);
  border: 3px solid var(--primary-black);
  border-radius: 50%;
}

.timeline-period {
  font-size: 0.9rem;
  color: var(--light-gray);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--spacing-xs);
}

.timeline-role {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
  color: var(--pure-white);
}

.timeline-company {
  font-size: 1.1rem;
  color: var(--accent-gold);
  font-weight: 400;
  margin-bottom: var(--spacing-sm);
}

.timeline-description p {
  color: var(--light-gray);
  line-height: 1.7;
  margin-bottom: var(--spacing-sm);
}

.timeline-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
}

.highlight-item {
  padding: 0.5rem 1rem;
  background-color: var(--dark-gray);
  color: var(--pure-white);
  font-size: 0.85rem;
  border-left: 2px solid var(--accent-gold);
}

.section-portfolio {
  background-color: var(--off-white);
}

.portfolio-filter {
  display: flex;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
  flex-wrap: wrap;
}

.filter-btn {
  padding: 0.75rem 1.5rem;
  background-color: var(--pure-white);
  border: 1px solid var(--dark-gray);
  color: var(--primary-black);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.filter-btn.active,
.filter-btn:hover {
  background-color: var(--primary-black);
  color: var(--pure-white);
  border-color: var(--primary-black);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(400px, 1fr));
  gap: var(--spacing-md);
}

.portfolio-item {
  position: relative;
  overflow: hidden;
  background-color: var(--pure-white);
  cursor: pointer;
  transition: var(--transition-med);
}

.portfolio-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.portfolio-image {
  width: 100%;
  height: 350px;
  overflow: hidden;
}

.portfolio-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--transition-slow);
}

.portfolio-item:hover .portfolio-image img {
  transform: scale(1.05);
}

.portfolio-info {
  padding: var(--spacing-md);
}

.portfolio-info h3 {
  font-size: 1.3rem;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
}

.portfolio-info p {
  color: var(--mid-gray);
  margin-bottom: var(--spacing-sm);
}

.project-count {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  background-color: var(--primary-black);
  color: var(--pure-white);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.section-education {
  background-color: var(--pure-white);
}

.education-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

.education-item {
  padding: var(--spacing-md);
  border-left: 3px solid var(--primary-black);
}

.edu-year {
  font-size: 0.9rem;
  color: var(--mid-gray);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.education-item h3 {
  font-size: 1.4rem;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
}

.edu-institution {
  color: var(--mid-gray);
  font-size: 1rem;
}

.section-contact {
  background-color: var(--secondary-black);
  color: var(--pure-white);
}

.section-contact .section-number {
  color: var(--mid-gray);
}

.section-contact .section-title {
  color: var(--pure-white);
}

.section-contact .lead-text {
  color: var(--light-gray);
  margin-bottom: var(--spacing-lg);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md);
}

.contact-card {
  background-color: var(--dark-gray);
  padding: var(--spacing-lg);
  text-align: center;
  transition: var(--transition-med);
}

.contact-card:hover {
  background-color: var(--mid-gray);
  transform: translateY(-4px);
}

.contact-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-sm);
  color: var(--accent-gold);
}

.contact-icon svg {
  width: 100%;
  height: 100%;
}

.contact-card h3 {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
}

.contact-card a {
  color: var(--accent-gold);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition-fast);
}

.contact-card a:hover {
  color: var(--pure-white);
}

.contact-card p {
  color: var(--light-gray);
  line-height: 1.6;
}

.site-footer {
		background-color: var(--primary-black);
		color: var(--light-gray);
		padding: var(--spacing-lg) 0;
		position: absolute;
		min-width: 100%;
		bottom: -150px;
		opacity: 0;
		visibility: hidden;
		pointer-events: none;
		transition: bottom 2s ease-out, opacity 1s ease-out;
}
html:has(#contact.active) .site-footer {
		bottom: 0;
		opacity: 1;
		visibility: visible;
		pointer-events: auto;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

.footer-brand h3 {
  color: var(--pure-white);
  margin-bottom: var(--spacing-xs);
}

.footer-info {
  text-align: right;
}

.footer-info p {
  font-size: 0.9rem;
  margin-bottom: 0.25rem;
}

@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
  }

  .hero-visual {
    height: 400px;
  }

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

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

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

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

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

@media (max-width: 768px) {
  .nav-menu {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background-color: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: var(--spacing-md);
    gap: var(--spacing-sm);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    z-index: 999;
  }

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

  .nav-toggle {
    display: flex;
  }

  .section-hero {
    padding-top: 8rem;
    align-items: flex-start;
  }

  .hero-stats {
    grid-template-columns: 1fr;
  }

  .hero-cta {
    flex-direction: column;
  }

  .hero-cta button {
    width: 100%;
  }

  .footer-content {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }

  .footer-info {
    text-align: center;
  }
}