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

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, sans-serif;
  background: #0f172a;
  color: #e5e7eb;
  line-height: 1.6;
}

.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(15, 23, 42, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.nav {
  max-width: 1100px;
  margin: auto;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-size: 24px;
  font-weight: 800;
  color: #fff;
}

.logo span {
  color: #38bdf8;
}

.nav-links {
  display: flex;
  gap: 25px;
  list-style: none;
}

.nav-links a {
  color: #e5e7eb;
  text-decoration: none;
  font-weight: 600;
}

.nav-links a:hover {
  color: #38bdf8;
}

.menu-btn {
  display: none;
  font-size: 26px;
  background: none;
  color: white;
  border: none;
  cursor: pointer;
}

.hero {
  max-width: 1100px;
  margin: auto;
  padding: 95px 20px;
  min-height: 85vh;
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 35px;
  align-items: center;
}

.tagline {
  color: #38bdf8;
  font-weight: 700;
  margin-bottom: 10px;
}

.hero h1 {
  font-size: clamp(38px, 6vw, 68px);
  line-height: 1.1;
  color: #fff;
}

.hero h1 span {
  color: #38bdf8;
}

.hero h2 {
  margin-top: 15px;
  font-size: clamp(22px, 3vw, 32px);
  color: #cbd5e1;
}

.hero-text {
  max-width: 650px;
  margin: 22px 0;
  color: #cbd5e1;
  font-size: 18px;
}

.buttons {
  display: flex;
  gap: 15px;
  flex-wrap: wrap;
}

.btn {
  padding: 13px 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
}

.primary {
  background: #38bdf8;
  color: #020617;
}

.secondary {
  border: 1px solid #38bdf8;
  color: #38bdf8;
}

.hero-card {
  background: linear-gradient(145deg, #111827, #1e293b);
  border: 1px solid rgba(56,189,248,0.25);
  border-radius: 28px;
  padding: 35px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}

.rn {
  width: 140px;
  height: 140px;
  margin: 0 auto 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: #38bdf8;
  color: #020617;
  font-size: 48px;
  font-weight: 900;
}

.hero-card h3 {
  font-size: 28px;
  color: #fff;
}

.section {
  max-width: 1100px;
  margin: auto;
  padding: 70px 20px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.section h2 {
  font-size: 34px;
  color: #fff;
  margin-bottom: 15px;
}

.section p {
  color: #cbd5e1;
  max-width: 800px;
  font-size: 18px;
}

.skills {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 25px;
}

.skills span {
  padding: 12px 18px;
  background: #1e293b;
  border: 1px solid rgba(56,189,248,0.25);
  border-radius: 12px;
  color: #e5e7eb;
  font-weight: 700;
}

.contact .email {
  display: inline-block;
  margin-top: 18px;
  color: #38bdf8;
  font-size: 22px;
  font-weight: 800;
  text-decoration: none;
}

.small {
  margin-top: 12px;
  font-size: 15px !important;
}

footer {
  text-align: center;
  padding: 30px 20px;
  background: #020617;
  color: #94a3b8;
}

@media (max-width: 768px) {
  .menu-btn {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 67px;
    left: 0;
    right: 0;
    background: #0f172a;
    padding: 20px;
    flex-direction: column;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.08);
  }

  .nav-links.show {
    display: flex;
  }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 65px;
    text-align: center;
  }

  .hero-text {
    margin-left: auto;
    margin-right: auto;
  }

  .buttons {
    justify-content: center;
  }
}