* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background-color: #0b1220;
  color: #e5e7eb;
  line-height: 1.6;
}

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

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(11, 18, 32, 0.95);
  border-bottom: 1px solid #1f2937;
  backdrop-filter: blur(8px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}

.logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: #ffffff;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.25rem;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: #cbd5e1;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: #ffffff;
}

.hero {
  padding: 6rem 0 5rem;
  background:
    linear-gradient(rgba(11, 18, 32, 0.80), rgba(11, 18, 32, 0.96)),
    radial-gradient(circle at top left, #1d4ed8 0%, transparent 35%);
}

.hero-content {
  max-width: 760px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 1rem;
  color: #93c5fd;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.85rem;
}

.hero h1 {
  margin: 0 0 1rem;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.15;
  color: #ffffff;
}

.hero-text {
  max-width: 680px;
  font-size: 1.08rem;
  color: #cbd5e1;
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.85rem 1.25rem;
  border-radius: 8px;
  font-weight: 700;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  opacity: 0.95;
}

.btn-primary {
  background-color: #2563eb;
  color: #ffffff;
}

.btn-secondary {
  background-color: transparent;
  color: #ffffff;
  border: 1px solid #334155;
}

.section {
  padding: 4.5rem 0;
}

.section-alt {
  background-color: #111827;
}

.section h2 {
  margin-top: 0;
  margin-bottom: 0.75rem;
  font-size: 2rem;
  color: #ffffff;
}

.section-intro {
  max-width: 750px;
  color: #cbd5e1;
  margin-bottom: 2rem;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.card {
  background-color: #0f172a;
  border: 1px solid #1f2937;
  border-radius: 12px;
  padding: 1.4rem;
}

.card h3 {
  margin-top: 0;
  color: #ffffff;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.25rem;
}

.skill-box {
  background-color: #0f172a;
  border: 1px solid #1f2937;
  border-radius: 12px;
  padding: 1.4rem;
}

.skill-box h3 {
  margin-top: 0;
  color: #ffffff;
}

.skill-box ul {
  margin: 0;
  padding-left: 1.1rem;
  color: #cbd5e1;
}

.project-stack {
  margin-top: 1rem;
  color: #93c5fd;
}

.contact-card {
  background-color: #0f172a;
  border: 1px solid #1f2937;
  border-radius: 12px;
  padding: 1.4rem;
  max-width: 700px;
}

.site-footer {
  border-top: 1px solid #1f2937;
  padding: 1.5rem 0;
  color: #94a3b8;
  text-align: center;
  background-color: #0b1220;
}

@media (max-width: 760px) {
  .nav {
    flex-direction: column;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem 0;
  }

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

  .hero {
    padding: 4.5rem 0 4rem;
  }
}