:root {
  --bg: #050816;
  --bg-2: #020617;
  --card: #0f172a;
  --fg: #f8fafc;
  --muted: #94a3b8;
  --text: #cbd5e1;
  --brand: #38bdf8;
  --brand-2: #6366f1;
  --line: rgba(255, 255, 255, 0.10);
  --maxw: 72rem;
  --space: clamp(1rem, 3vw, 2rem);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font: 16px / 1.6 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, sans-serif;
  color: var(--fg);
  background:
    radial-gradient(circle at 10% 10%, rgba(56, 189, 248, 0.18), transparent 28%),
    radial-gradient(circle at 90% 20%, rgba(99, 102, 241, 0.18), transparent 28%),
    var(--bg);
}

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

a {
  color: var(--brand);
  text-decoration: none;
}

.container {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--space);
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: var(--space);
  top: var(--space);
  background: white;
  color: black;
  padding: 0.4rem 0.7rem;
  z-index: 999;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(5, 8, 22, 0.82);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem var(--space);
}

.brand {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: white;
  font-weight: 900;
}

.navlist {
  display: flex;
  gap: 1.2rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.navlist a {
  color: var(--text);
  font-weight: 600;
}

.navlist a:hover {
  color: var(--brand);
}

.hero {
  min-height: 90vh;
  display: grid;
  align-items: center;
  padding-block: clamp(4rem, 10vw, 7rem);
}

.hero-grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}

.tag,
.section-label {
  color: var(--brand);
  text-transform: uppercase;
  letter-spacing: 3px;
  font-size: 0.82rem;
  font-weight: 800;
}

.hero h1 {
  font-size: clamp(2.7rem, 7vw, 5.8rem);
  line-height: 1;
  margin: 0.4rem 0 1.2rem;
}

.hero p {
  max-width: 48rem;
  color: var(--text);
  font-size: 1.18rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1.8rem;
}

.btn {
  display: inline-block;
  border: 0;
  cursor: pointer;
  padding: 0.85rem 1.35rem;
  border-radius: 999px;
  font-weight: 800;
  transition: 0.25s ease;
}

.btn:hover {
  transform: translateY(-4px);
}

.btn-primary {
  background: var(--brand);
  color: #020617;
}

.btn-outline {
  border: 1px solid var(--brand);
  color: var(--brand);
}

.portrait-card {
  padding: 1rem;
  background: rgba(15, 23, 42, 0.82);
  border: 1px solid var(--line);
  border-radius: 2rem;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  animation: float 4s ease-in-out infinite;
}

.portrait {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 1.5rem;
}

.portrait-info {
  padding: 1rem 0.4rem 0.2rem;
}

.portrait-info h2 {
  margin: 0;
}

.portrait-info p {
  color: var(--muted);
  margin: 0.2rem 0 0;
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-14px);
  }
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--bg-2);
  border-block: 1px solid var(--line);
}

.stats div {
  text-align: center;
  padding: 2rem 1rem;
}

.stats strong {
  display: block;
  color: var(--brand);
  font-size: 1.6rem;
}

.stats span {
  color: var(--muted);
}

.section {
  padding-block: clamp(4rem, 8vw, 6rem);
}

.section h2 {
  font-size: clamp(2rem, 5vw, 3.7rem);
  line-height: 1.1;
  margin: 0.4rem 0 1.5rem;
}

.dark {
  background: var(--bg-2);
}

.big-text {
  color: var(--text);
  font-size: 1.25rem;
  line-height: 1.8;
  max-width: 62rem;
}

.projects-grid {
  display: grid;
  gap: 2rem;
  margin-top: 2.4rem;
}

.project-card {
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid var(--line);
  border-radius: 1.5rem;
  overflow: hidden;
  transition: 0.25s ease;
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: var(--brand);
  box-shadow: 0 24px 60px rgba(56, 189, 248, 0.12);
}

.project-image {
  width: 100%;
  height: 230px;
  object-fit: cover;
}

.project-content {
  padding: 1.6rem;
}

.project-content.no-image {
  min-height: 310px;
}

.project-content h3 {
  margin: 0 0 0.6rem;
  font-size: 1.45rem;
}

.project-content p {
  color: var(--text);
  margin: 0 0 1.1rem;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-block: 1rem;
}

.project-tech span,
.tech-tag {
  background: rgba(56, 189, 248, 0.12);
  color: var(--brand);
  border: 1px solid rgba(56, 189, 248, 0.25);
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 700;
}

.skills {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  display: grid;
  gap: 1.2rem;
}

.skills li {
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid var(--line);
  border-radius: 1rem;
  padding: 1rem;
}

.skills li > span {
  display: block;
  font-weight: 800;
  margin-bottom: 0.45rem;
}

.skills small {
  color: var(--muted);
}

.bar {
  height: 0.8rem;
  background: rgba(255, 255, 255, 0.10);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 0.35rem;
}

.bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
  border-radius: 999px;
}

.cv {
  display: grid;
  gap: 1rem;
  margin-top: 2rem;
}

.cv .row {
  display: grid;
  grid-template-columns: 14ch 1fr;
  gap: 1rem;
  padding: 1.2rem;
  border: 1px solid var(--line);
  border-radius: 1.1rem;
  background: rgba(15, 23, 42, 0.9);
}

.cv .year {
  color: var(--brand);
  font-weight: 800;
}

.cv .detail h3 {
  margin: 0 0 0.25rem;
}

.cv .detail p {
  margin: 0;
  color: var(--text);
}

.cta {
  text-align: center;
  padding-block: clamp(4rem, 8vw, 6rem);
  background:
    radial-gradient(circle at center, rgba(56, 189, 248, 0.16), transparent 45%),
    var(--bg);
}

.cta h2 {
  font-size: clamp(2rem, 5vw, 3.8rem);
  margin-bottom: 1rem;
}

.cta p {
  max-width: 46rem;
  margin: 0 auto 2rem;
  color: var(--text);
  font-size: 1.15rem;
}

.contact-content {
  display: grid;
  gap: 2rem;
  margin-top: 2rem;
}

.contact-info,
.contact-form {
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid var(--line);
  border-radius: 1.4rem;
  padding: 1.6rem;
}

.contact-info p,
.contact-details p {
  color: var(--text);
}

.form-group {
  margin-bottom: 1.1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 800;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.85rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  background: #020617;
  color: white;
  font: inherit;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: 2px solid var(--brand);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.5rem 0;
  text-align: center;
  color: var(--muted);
  background: var(--bg-2);
}

@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: 1.3fr 0.7fr;
  }

  .projects-grid {
    grid-template-columns: repeat(2, minmax(280px, 1fr));
  }

  .contact-content {
    grid-template-columns: 1fr 1.4fr;
  }
}

@media (min-width: 1024px) {
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 760px) {
  .site-nav {
    flex-direction: column;
  }

  .navlist {
    flex-wrap: wrap;
    justify-content: center;
  }

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

  .cv .row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .stats {
    grid-template-columns: 1fr;
  }
}