/* Reset & Base */
body {
  margin: 0;
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: #333;
}

/* Navigation */
nav {
  background: #222;
  padding: 0.5em 1em;
}
.nav-menu {
  list-style: none;
  display: flex;
  gap: 1em;
  margin: 0;
}
.nav-menu a {
  color: #fff;
  text-decoration: none;
}

/* Hero */
.hero {
  text-align: center;
  padding: 4em 1em;
  background: #f4f4f4;
}
.hero-img {
  width: 120px;
  height: 120px;
  border-radius: 50%;
}

/* Portfolio */
.portfolio {
  padding: 2em 1em;
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1em;
}
.card {
  background: #fff;
  border: 1px solid #ddd;
  padding: 1em;
  text-align: center;
}
.card img {
  max-width: 100%;
  height: auto;
}
button {
  padding: 0.5em 1em;
  cursor: pointer;
}

/* Modal */
.modal {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.8);
  justify-content: center;
  align-items: center;
}
.modal-content {
  background: #fff;
  padding: 2em;
  max-width: 600px;
  position: relative;
}
.close {
  position: absolute;
  top: 0.5em; right: 0.5em;
  font-size: 1.5em;
  cursor: pointer;
}

/* Skills Grid */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
  justify-items: center;
}
.skill-item {
  text-align: center;
}
.skill-item img {
  width: 100%;
  max-width: 60px;
  display: block;
  margin: 0 auto 0.5rem;
}
.skill-item h6 {
  font-size: 0.9rem;
  margin: 0;
  font-weight: 600;
}

/* Certifications Grid */
.certifications-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}
.cert-item {
  text-align: center;
}
.cert-item img {
  width:100%;
  max-width: 320px;
  display: block;
  margin: 0 auto 1rem;
}
.cert-item h6 {
  font-size: 0.9rem;
  margin: 0;
  font-weight: 600;
}

/* About & Contact */
.about, .contact {
  padding: 2em 1em;
  background: #fafafa;
}
form {
  display: flex;
  flex-direction: column;
  gap: 0.5em;
  max-width: 400px;
  margin: auto;
}
input, textarea {
  padding: 0.5em;
  border: 1px solid #ccc;
  width: 100%;
}
button[type="submit"] {
  background: #222;
  color: #fff;
  border: none;
}

/* Footer */
footer {
  text-align: center;
  padding: 1em;
  background: #222;
  color: #fff;
}