:root {
  --bg: #0b1020;
  --bg-soft: #121936;
  --surface: #1a2347;
  --text: #eaf0ff;
  --muted: #a8b2d6;
  --primary: #7c9cff;
  --primary-strong: #5e81ff;
  --border: #2b376d;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  background: radial-gradient(circle at top, #182458 0%, var(--bg) 40%);
  color: var(--text);
  line-height: 1.6;
}

a:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 10px;
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding-bottom: 2rem;
}

.hero-layout {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 2rem;
  align-items: center;
  margin: auto;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 0;
}

.logo {
  font-weight: 800;
  letter-spacing: 0.3px;
}

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

.nav-links {
  display: flex;
  list-style: none;
  gap: 1.2rem;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--text);
}

.hero-content {
  max-width: 720px;
}

.hero-image-wrap {
  display: flex;
  justify-content: center;
}

.hero-image {
  width: min(340px, 100%);
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: linear-gradient(180deg, #182453, var(--surface));
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
}

.tag {
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 0.7rem;
}

h1 {
  font-size: clamp(2.2rem, 6vw, 4.2rem);
  line-height: 1.15;
  margin-bottom: 0.7rem;
}

.subtitle {
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--muted);
  margin-bottom: 1rem;
}

.summary {
  color: #c8d1f0;
  margin-bottom: 1.5rem;
}

.hero-actions {
  display: flex;
  gap: 0.85rem;
  flex-wrap: wrap;
}

.btn {
  text-decoration: none;
  padding: 0.72rem 1.1rem;
  border-radius: 10px;
  font-weight: 600;
  transition: transform 0.15s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn.primary {
  background: var(--primary);
  color: #0b1020;
}

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

.btn.ghost {
  border: 1px solid var(--border);
  color: var(--text);
}

.section {
  padding: 4rem 0;
}

h2 {
  font-size: 1.9rem;
  margin-bottom: 1rem;
}

.section p {
  max-width: 760px;
  color: #c8d1f0;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1rem;
}

.chips span {
  border: 1px solid var(--border);
  background: var(--bg-soft);
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  color: #d8e1ff;
  font-size: 0.92rem;
}

.project-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin-top: 1.15rem;
}

.card {
  background: linear-gradient(180deg, #182453, var(--surface));
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: #4a5ea8;
}

.card h3 {
  margin-bottom: 0.5rem;
  font-size: 1.08rem;
}

.card p {
  color: #c8d1f0;
  font-size: 0.95rem;
}

.contact-list {
  margin-top: 0.8rem;
  list-style: none;
}

.contact-list li {
  margin-bottom: 0.45rem;
  color: #d6dfff;
}

.contact-list a {
  color: var(--primary);
  text-decoration: none;
  word-break: break-word;
}

.contact-list a:hover {
  text-decoration: underline;
}

footer {
  border-top: 1px solid var(--border);
  color: var(--muted);
  text-align: center;
  padding: 1.2rem 0;
  margin-top: 1.5rem;
}

@media (max-width: 720px) {
  .hero {
    min-height: auto;
    padding-bottom: 1.2rem;
  }

  .hero-layout {
    grid-template-columns: 1fr;
    gap: 1.2rem;
    margin-top: 1.4rem;
  }

  .nav {
    flex-direction: column;
    gap: 0.8rem;
  }

  .nav-links {
    gap: 0.8rem;
    flex-wrap: wrap;
    justify-content: center;
  }

  .hero-content {
    margin-top: 0;
  }

  .hero-image {
    width: min(260px, 100%);
  }

  .section {
    padding: 3rem 0;
  }

  h2 {
    font-size: 1.6rem;
  }

  .btn {
    width: 100%;
    text-align: center;
  }
}