:root {
  color-scheme: dark;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #080b14;
  color: #eef2ff;
  line-height: 1.6;
  font-size: 16px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top, rgba(99, 102, 241, 0.22), transparent 30%),
    linear-gradient(180deg, #05070f 0%, #0d1321 100%);
}

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

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

button,
input {
  font: inherit;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 2rem;
  position: sticky;
  top: 0;
  backdrop-filter: blur(16px);
  background: rgba(6, 10, 23, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.brand-mark {
  width: 52px;
  height: 52px;
  border-radius: 18px;
  display: block;
  background: linear-gradient(135deg, #6366f1, #22c55e);
  color: white;
  font-weight: 700;
  object-fit: cover;
  border: 2px solid rgba(255, 255, 255, 0.1);
}

.brand strong {
  display: block;
  font-size: 1rem;
}

.brand p {
  margin: 0.2rem 0 0;
  color: #a5b4fc;
  font-size: 0.95rem;
}

.header-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

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

.nav-links a {
  color: #c7d2fe;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: white;
}

.lang-switcher {
  display: flex;
  align-items: center;
}

.lang-select {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.04);
  color: #e2e8f0;
  border-radius: 999px;
  padding: 0.5rem 0.9rem;
  cursor: pointer;
  min-width: 110px;
}

.lang-select option {
  color: #0f172a;
}

main {
  width: min(1200px, calc(100% - 2rem));
  margin: 0 auto;
}

.section-card a {
  color: rgb(145, 145, 245);
  text-decoration: none;
}

.section-card a:hover {
  text-decoration: underline;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) 0.8fr;
  gap: 2rem;
  align-items: center;
  padding: 2.5rem 0 3rem;
}

.hero-copy {
  max-width: 620px;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.24em;
  color: #818cf8;
  font-size: 0.8rem;
  margin-bottom: 1rem;
}

.hero h1 {
  font-size: clamp(2.8rem, 4vw, 4.4rem);
  margin: 0;
  line-height: 1.02;
}

.hero p {
  color: #dbeafe;
  max-width: 42rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.5rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

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

.button-primary {
  background: linear-gradient(135deg, #6366f1, #22c55e);
  color: white;
}

.button-secondary {
  background: rgba(255, 255, 255, 0.06);
  color: #e2e8f0;
  border-color: rgba(255, 255, 255, 0.12);
}

.hero-panel {
  display: flex;
  justify-content: end;
}

.card,
.section-card {
  background: rgba(12, 18, 35, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 28px;
  padding: 2rem;
  box-shadow: 0 30px 90px rgba(1, 4, 18, 0.25);
}

.overview-card {
  width: 100%;
  max-width: 500px;
}

.languages-chart {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  margin-top: 1.5rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.stats-grid div {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 18px;
  padding: 1rem;
  text-align: center;
}

.stats-grid strong {
  display: block;
  font-size: 1.5rem;
  margin-bottom: 0.25rem;
}

.language-item {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.language-label {
  min-width: 80px;
  font-size: 0.9rem;
  color: #dbeafe;
  font-weight: 500;
}

.language-bar-container {
  flex: 1;
  height: 32px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.language-bar {
  height: 100%;
  background: linear-gradient(90deg, #6366f1, #22c55e);
  border-radius: 999px;
  transition: filter 0.2s ease;
}

.language-bar:hover {
  filter: brightness(1.15);
}

.language-percentage {
  min-width: 50px;
  text-align: right;
  font-size: 0.75rem;
  color: #a5b4fc;
  font-weight: 600;
  transition: color 0.2s ease;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.project-section .eyebrow,
.about-section h2,
.contact-section h2 {
  margin: 0;
}

#project-search {
  width: 100%;
  min-width: 280px;
  max-width: 420px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 999px;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  color: #eef2ff;
}

#project-search::placeholder {
  color: #94a3b8;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.filter-button {
  padding: 0.85rem 1.2rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: #dbeafe;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.filter-button.active,
.filter-button:hover {
  background: rgba(99, 102, 241, 0.18);
  border-color: rgba(99, 102, 241, 0.5);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.project-card {
  border-radius: 28px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: rgba(99, 102, 241, 0.45);
}

.project-card img {
  aspect-ratio: 16 / 10;
  object-fit: contain;
  background: rgba(255, 255, 255, 0.03);
}

.project-content {
  padding: 1.6rem;
}

.project-meta {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  color: #a5b4fc;
  font-size: 0.92rem;
  margin-bottom: 1rem;
}

.project-title {
  margin: 0 0 0.85rem;
  font-size: 1.3rem;
}

.project-description {
  margin: 0 0 1.25rem;
  color: #cbd5e1;
}

.language-list,
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.language-chip,
.tag {
  border-radius: 999px;
  padding: 0.5rem 0.85rem;
  font-size: 0.82rem;
}

.language-chip {
  background: rgba(99, 102, 241, 0.14);
  border: 1px solid rgba(99, 102, 241, 0.28);
  color: #dbeafe;
}

.tag {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.project-action {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #eef2ff;
  font-weight: 600;
  border-radius: 999px;
  padding: 0.85rem 1.1rem;
  background: rgba(99, 102, 241, 0.15);
}

.section-card {
  margin-bottom: 1.5rem;
}

.section-card h2 {
  margin-top: 0;
}

.section-card p,
.section-card ul {
  margin: 0.9rem 0 0;
  color: #dbeafe;
}

.section-card ul {
  padding-left: 1.3rem;
}

.section-card li {
  margin-bottom: 0.5rem;
}

.gradient-card {
  background: linear-gradient(180deg, rgba(79, 70, 229, 0.16), rgba(6, 10, 23, 0.92));
}

.about-section {
  padding: 2.5rem 0;
}

.contact-section {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
  margin: 2.5rem 0 3rem;
}

.no-results {
  opacity: 0;
  color: #f8fafc;
  text-align: center;
  margin-top: 1rem;
  transition: opacity 0.2s ease;
}

.footer {
  padding: 2rem 0 3rem;
  text-align: center;
  color: #94a3b8;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-panel {
    justify-content: center;
  }

  .contact-section {
    grid-template-columns: 1fr;
  }
  
  .overview-content {
    flex-direction: column;
    gap: 1.5rem;
  }
}

@media (max-width: 680px) {
  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-links {
    justify-content: center;
  }

  .section-head {
    flex-direction: column;
    align-items: stretch;
  }
}