/* styles.css */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --black: #000000;
  --white: #ffffff;
  --red: #ff0000;
  --blue: #0000ff;
  --yellow: #ffff00;
}

body {
  font-family: 'Work Sans', sans-serif;
  background: var(--white);
  color: var(--black);
  line-height: 1.4;
  overflow-x: hidden;
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--white);
  border-bottom: 3px solid var(--black);
  padding: 1.5rem 3rem;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-family: 'Archivo Black', sans-serif;
  font-size: 1.5rem;
  letter-spacing: -1px;
  cursor: pointer;
}

.nav-menu {
  display: flex;
  gap: 3rem;
  list-style: none;
}

.nav-menu a {
  color: var(--black);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  transition: all 0.3s;
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--red);
  transition: width 0.3s;
}

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

.resume-btn {
  padding: 0.8rem 1.5rem;
  background: var(--blue);
  color: var(--white);
  text-decoration: none;
  font-weight: 900;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  transition: all 0.3s;
}

.resume-btn:hover { background: var(--red); }

/* Hero */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  position: relative;
  padding-top: 6rem;
}

.hero-left {
  padding: 4rem 3rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-label {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 2rem;
}

.hero-title {
  font-family: 'Archivo Black', sans-serif;
  font-size: clamp(4rem, 12vw, 10rem);
  line-height: 0.9;
  letter-spacing: -4px;
  margin-bottom: 2rem;
}

.hero-title .first-name { display: block; }
.hero-title .last-name { display: block; color: var(--red); }

.hero-description {
  font-size: 1.3rem;
  font-weight: 300;
  max-width: 500px;
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero-tags {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
  flex-wrap: wrap;
}

.tag {
  padding: 0.8rem 1.5rem;
  border: 2px solid var(--black);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hero-cta {
  display: flex;
  gap: 1.5rem;
}

.btn {
  padding: 1.2rem 3rem;
  font-family: 'Work Sans', sans-serif;
  font-weight: 900;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
}

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

.btn-primary:hover { background: var(--red); }

.btn-secondary {
  background: transparent;
  color: var(--black);
  border: 3px solid var(--black);
}

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

.hero-right {
  position: relative;
  background: var(--yellow);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Geometric shapes */
.shape { position: absolute; }

.circle {
  width: 300px;
  height: 300px;
  border: 15px solid var(--red);
  border-radius: 50%;
  top: 10%;
  right: 10%;
  animation: rotate 20s linear infinite;
}

.square {
  width: 200px;
  height: 200px;
  background: var(--blue);
  bottom: 15%;
  left: 15%;
  animation: float 6s ease-in-out infinite;
}

.triangle {
  width: 0;
  height: 0;
  border-left: 100px solid transparent;
  border-right: 100px solid transparent;
  border-bottom: 173px solid var(--black);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

@keyframes rotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-30px); }
}

/* Sections */
section { padding: 8rem 3rem; }

.section-title {
  font-family: 'Archivo Black', sans-serif;
  font-size: clamp(3rem, 10vw, 8rem);
  line-height: 0.9;
  letter-spacing: -3px;
  margin-bottom: 4rem;
}

.section-subtitle {
  font-size: 1.2rem;
  font-weight: 300;
  margin-bottom: 3rem;
  max-width: 700px;
}

/* Grid Layouts */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}

/* Cards */
.card {
  border: 3px solid var(--black);
  padding: 2rem;
  transition: all 0.3s;
  background: var(--white);
}

.card:hover {
  transform: translate(-10px, -10px);
  box-shadow: 10px 10px 0 var(--black);
}

.card-title {
  font-family: 'Archivo Black', sans-serif;
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
  line-height: 1.2;
}

.card-subtitle {
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 1.5rem;
}

.card-desc {
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.8;
  margin-bottom: 1.5rem;
}

/* About Section */
.interest-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.interest-card {
  border: 3px solid var(--black);
  padding: 2rem;
  transition: all 0.3s;
}

.interest-card:nth-child(1) { background: var(--yellow); }
.interest-card:nth-child(2) { background: var(--white); }
.interest-card:nth-child(3) { background: var(--red); color: var(--white); }
.interest-card:nth-child(4) { background: var(--blue); color: var(--white); }

.interest-card:hover {
  transform: translate(-5px, -5px);
  box-shadow: 5px 5px 0 var(--black);
}

.interest-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.interest-title {
  font-family: 'Archivo Black', sans-serif;
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

/* Research */
.research-card {
  border: 3px solid var(--black);
  padding: 2.5rem;
  margin-bottom: 2rem;
  position: relative;
}

.research-card::before {
  content: '';
  position: absolute;
  top: -3px;
  left: -3px;
  right: -3px;
  bottom: -3px;
  border: 3px solid var(--red);
  transform: translate(10px, 10px);
  z-index: -1;
}

.status-badge {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--black);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}

.status-badge.past { background: #666; }

.tag-container {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.skill-tag {
  background: var(--black);
  color: var(--white);
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Experience */
.experience-list {
  display: grid;
  gap: 2rem;
}

.experience-card {
  border: 3px solid var(--black);
  padding: 0;
  transition: all 0.3s;
}

.experience-card:hover {
  transform: translate(-5px, -5px);
  box-shadow: 5px 5px 0 var(--black);
}

.experience-header {
  padding: 2rem;
  border-bottom: 3px solid var(--black);
}

.experience-card:nth-child(1) .experience-header { background: var(--yellow); }
.experience-card:nth-child(2) .experience-header { background: var(--red); color: var(--white); }
.experience-card:nth-child(3) .experience-header { background: var(--blue); color: var(--white); }
.experience-card:nth-child(4) .experience-header { background: var(--white); }
.experience-card:nth-child(5) .experience-header { background: var(--yellow); }
.experience-card:nth-child(6) .experience-header { background: var(--red); color: var(--white); }
.experience-card:nth-child(7) .experience-header { background: var(--blue); color: var(--white); }
.experience-card:nth-child(8) .experience-header { background: var(--white); }
.experience-card:nth-child(9) .experience-header { background: var(--yellow); }
.experience-card:nth-child(10) .experience-header { background: var(--red); color: var(--white); }
.experience-card:nth-child(11) .experience-header { background: var(--blue); color: var(--white); }
.experience-card:nth-child(12) .experience-header { background: var(--white); }
.experience-card:nth-child(13) .experience-header { background: var(--yellow); }

.experience-body { padding: 2rem; }

.experience-title {
  font-family: 'Archivo Black', sans-serif;
  font-size: 1.6rem;
  margin-bottom: 0.5rem;
}

.experience-company {
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.experience-date {
  font-size: 0.9rem;
  opacity: 0.8;
  margin-bottom: 0;
}

.show-all-btn {
  display: block;
  margin: 3rem auto 0;
  padding: 1rem 2rem;
  background: var(--black);
  color: var(--white);
  border: none;
  font-family: 'Work Sans', sans-serif;
  font-weight: 900;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  cursor: pointer;
  transition: all 0.3s;
}

.show-all-btn:hover { background: var(--red); }

.hidden { display: none; }

/* Projects */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 2rem;
}

.project-card {
  border: 3px solid var(--black);
  padding: 0;
  transition: all 0.3s;
}

.project-card:hover {
  transform: translate(-5px, -5px);
  box-shadow: 5px 5px 0 var(--black);
}

.project-header {
  padding: 2rem;
  text-align: center;
  font-size: 3rem;
  font-family: 'Archivo Black', sans-serif;
  border-bottom: 3px solid var(--black);
}

.project-card:nth-child(3n+1) .project-header { background: var(--red); color: var(--white); }
.project-card:nth-child(3n+2) .project-header { background: var(--blue); color: var(--white); }
.project-card:nth-child(3n) .project-header { background: var(--yellow); }

.project-body { padding: 2rem; }

.project-links {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.project-link {
  color: var(--black);
  text-decoration: none;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.85rem;
  border-bottom: 2px solid var(--black);
  transition: all 0.3s;
}

.project-link:hover {
  color: var(--red);
  border-color: var(--red);
}

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.skill-category {
  border: 3px solid var(--black);
  padding: 2rem;
  transition: all 0.3s;
}

.skill-category:hover {
  transform: translate(-5px, -5px);
  box-shadow: 5px 5px 0 var(--black);
}

.skill-category:nth-child(4n+1) { background: var(--yellow); }
.skill-category:nth-child(4n+2) { background: var(--white); }
.skill-category:nth-child(4n+3) { background: var(--red); color: var(--white); }
.skill-category:nth-child(4n) { background: var(--blue); color: var(--white); }

.skill-category h3 {
  font-family: 'Archivo Black', sans-serif;
  font-size: 1.3rem;
  margin-bottom: 1.5rem;
}

.skill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-item {
  padding: 0.5rem 1rem;
  background: var(--black);
  color: var(--white);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

/* Contact */
.contact {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--blue);
  color: var(--white);
  text-align: center;
}

.contact h2 {
  font-family: 'Archivo Black', sans-serif;
  font-size: clamp(3rem, 10vw, 8rem);
  line-height: 0.9;
  letter-spacing: -3px;
  margin-bottom: 2rem;
}

.contact p {
  font-size: 1.5rem;
  font-weight: 300;
  margin-bottom: 3rem;
  line-height: 1.8;
}

.contact-subtext {
  max-width: 800px;
  margin: 0 auto 3rem;
}

.btn-contact {
  background: var(--yellow);
  color: var(--black);
}

.social-links {
  display: flex;
  gap: 2rem;
  justify-content: center;
  margin-top: 3rem;
  flex-wrap: wrap;
}

.social-link {
  width: 80px;
  height: 80px;
  background: var(--yellow);
  color: var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-family: 'Archivo Black', sans-serif;
  font-size: 1.2rem;
  transition: all 0.3s;
  border: 3px solid var(--black);
}

.social-link i {
  font-size: 2rem;
}

.social-link:hover {
  background: var(--yellow);
  transform: scale(1.1);
}

/* Footer */
footer {
  background: var(--black);
  color: var(--white);
  text-align: center;
  padding: 3rem;
  font-weight: 300;
}

/* Mobile */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; }
  .hero-right { min-height: 400px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .interest-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  nav { padding: 1.5rem; }
  .nav-menu { display: none; }
  .social-links { flex-wrap: wrap; }
  section { padding: 4rem 1.5rem; }
}