body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  background: #f4f4f4;
  color: #222;
}

header {
  background: linear-gradient(120deg, #2980b9 60%, #e67e22 100%);
  color: #fff;
  padding: 40px 0 20px 0;
  text-align: center;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px;
}

.subtitle {
  font-size: 1.2rem;
  margin-bottom: 16px;
  color: #ffd6a0;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 18px;
}

nav a {
  color: #fff;
  text-decoration: none;
  margin: 0 18px;
  font-size: 1.1rem;
  transition: color 0.2s;
}

nav a:hover {
  color: #ffd6a0;
}

h2 {
  color: #2980b9;
  margin-bottom: 18px;
  font-size: 1.5rem;
}

.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.skills-list li {
  background: #e67e22;
  color: #fff;
  padding: 8px 18px;
  border-radius: 18px;
  font-size: 1rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}

.project-card {
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 6px 24px rgba(44, 62, 80, 0.1);
  padding: 24px;
  text-align: left;
  transition: transform 0.2s, box-shadow 0.2s;
  position: relative;
}

.project-card:hover {
  transform: translateY(-6px) scale(1.03);
  box-shadow: 0 12px 32px rgba(44, 62, 80, 0.14);
}

.project-card h3 {
  margin: 8px 0 4px 0;
  color: #e67e22;
}

.project-card p {
  font-size: 1rem;
  color: #636e72;
  margin-bottom: 8px;
}

.project-card a {
  color: #2980b9;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.2s;
}

.project-card a:hover {
  color: #e67e22;
}

.toggle-project {
  display: none;
}

.toggle-btn {
  display: inline-block;
  background: #2980b9;
  color: #fff;
  padding: 8px 22px;
  border-radius: 24px;
  font-size: 1rem;
  cursor: pointer;
  margin-top: 12px;
  margin-bottom: 8px;
  transition: background 0.2s;
  text-align: center;
  border: none;
  outline: none;
}

.toggle-btn:hover {
  background: #e67e22;
}

.project-link {
  display: none;
  margin-top: 10px;
}

.toggle-project:checked ~ .project-link {
  display: block;
}

.project-link a {
  color: #2980b9;
  background: #f4f4f4;
  padding: 8px 18px;
  border-radius: 18px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.2s, color 0.2s;
  display: inline-block;
}

.project-link a:hover {
  background: #e67e22;
  color: #fff;
}

form {
  max-width: 400px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

input,
textarea {
  padding: 10px;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 1rem;
}

button[type="submit"] {
  background: #2980b9;
  color: #fff;
  border: none;
  border-radius: 6px;
  padding: 12px;
  font-size: 1rem;
  cursor: pointer;
  transition: background 0.2s;
}

button[type="submit"]:hover {
  background: #e67e22;
}

footer {
  background: #2d3436;
  color: #fff;
  text-align: center;
  padding: 18px 0;
  margin-top: 40px;
  font-size: 1rem;
}

.contact-links {
  margin: 24px 0 16px 0;
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  justify-content: center;
}
.contact-links a {
  color: #2980b9;
  background: #fff;
  padding: 8px 18px;
  border-radius: 18px;
  text-decoration: none;
  font-weight: bold;
  transition: background 0.2s, color 0.2s;
  border: 1px solid #e67e22;
}
.contact-links a:hover,
.contact-links .btn:hover {
  background: #e67e22;
  color: #fff;
}
.contact-links i {
  margin-right: 8px;
  font-size: 1.2rem;
  vertical-align: middle;
}
.certifications {
  margin-top: 32px;
  text-align: left;
}
.certifications h3 {
  color: #636e72;
  margin-bottom: 12px;
}
.certifications ul {
  list-style: disc inside;
  color: #636e72;
  margin: 0;
  padding-left: 18px;
}
.certifications li {
  margin-bottom: 8px;
  font-size: 1rem;
  list-style: none;
}
.certifications i {
  margin-right: 8px;
  font-size: 1.2rem;
  vertical-align: middle;
}

.skills-icons {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  justify-content: center;
  margin-top: 34px;
  margin-bottom: 24px;
}
.skills-icons div {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-size: 1rem;
}
.skills-icons i {
  font-size: 2.2rem;
  margin-bottom: 8px;
  color: #2980b9;
  transition: color 0.2s;
}
.skills-icons i:hover {
  color: #e67e22;
}
.skills-icons span {
  font-size: 1rem;
}

.hero-banner {
  background: linear-gradient(120deg, #2980b9 60%, #e67e22 100%);
  color: #fff;
  padding: 60px 0 40px 0;
  text-align: center;
  box-shadow: 0 8px 32px rgba(44, 62, 80, 0.1);
}
.hero-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
}
.profile-img {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: 50%;
  box-shadow: 0 4px 16px rgba(44, 62, 80, 0.18);
  margin-bottom: 12px;
  border: 4px solid #fff;
}
.hero-title {
  font-size: 1.6rem;
  margin: 10px 0 18px 0;
  letter-spacing: 1px;
  font-weight: 600;
}
.highlight {
  color: #ffd6a0;
  font-weight: bold;
  background: #222;
  padding: 2px 8px;
  border-radius: 8px;
}
.tagline {
  font-size: 1.2rem;
  margin-bottom: 18px;
  color: #fff;
}
.hero-words {
  display: block;
  font-size: 1.1rem;
  color: #222;
  background: #ffd6a0;
  padding: 10px 18px;
  border-radius: 18px;
  margin-top: 10px;
  font-weight: 500;
  letter-spacing: 1px;
  box-shadow: 0 2px 8px rgba(44, 62, 80, 0.08);
}
.hero-cta {
  margin-top: 18px;
  display: flex;
  gap: 18px;
  justify-content: center;
}
.hero-cta .btn {
  background: #fff;
  color: #2980b9;
  border: none;
  font-weight: bold;
  box-shadow: 0 2px 8px rgba(44, 62, 80, 0.12);
  transition: background 0.2s, color 0.2s;
}
.hero-cta .btn:hover {
  background: #e67e22;
  color: #fff;
}

.nav-btn {
  display: inline-block;
  background: #2980b9;
  color: #fff;
  padding: 6px 16px;
  margin: 0 4px 8px 4px;
  border-radius: 18px;
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  box-shadow: 0 2px 8px rgba(44, 62, 80, 0.1);
  transition: background 0.2s, color 0.2s, transform 0.2s;
  border: none;
  outline: none;
  text-align: center;
  min-width: 80px;
}
.nav-btn:hover,
.nav-btn:focus {
  background: #e67e22;
  color: #fff;
  transform: translateY(-2px) scale(1.05);
}

/* Show the toggle button on desktop */
.nav-toggle {
  display: inline-block;
  background: none;
  border: none;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
  margin-right: 12px;
  vertical-align: middle;
}

/* Hide nav links by default and show toggle only on mobile */
@media (max-width: 700px) {
  .nav-toggle {
    display: inline-block;
  }
  nav .nav-btn {
    display: none;
  }
  nav .nav-btn.nav-visible {
    display: inline-block;
  }
}

/* On desktop, always show nav links and hide toggle */
@media (min-width: 701px) {
  .nav-toggle {
    display: none;
  }
  nav .nav-btn {
    display: inline-block;
  }
}

/*
  Main site styles for layout, color, and responsiveness
  ----------------------------------------------------
  - No animation is used in this stylesheet.
  - Only smooth hover transitions for buttons and nav links are present.
*/

/* Responsive Styles */
@media (max-width: 700px) {
  .container {
    padding: 12px;
  }
  h2 {
    font-size: 1.1rem;
  }
  .skills-list li {
    font-size: 0.95rem;
    padding: 6px 12px;
  }
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .hero-content {
    gap: 14px;
  }
  .profile-img {
    width: 80px;
    height: 80px;
  }
  .hero-title {
    font-size: 1.1rem;
  }
  .tagline {
    font-size: 1rem;
  }
  .hero-words {
    font-size: 0.95rem;
    padding: 6px 10px;
  }
  nav {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    margin-top: 18px;
  }
  .nav-btn {
    width: 100%;
    min-width: unset;
    font-size: 1rem;
    margin: 0 0 8px 0;
    padding: 10px 0;
  }
}

@media (max-width: 600px) {
  nav {
    flex-direction: column;
    align-items: center;
    gap: 10px;
  }
  .nav-btn {
    width: 90vw;
    min-width: unset;
    font-size: 1.05rem;
    margin: 0 0 10px 0;
    padding: 12px 0;
  }
}

/*
  Button and nav link hover effect
  -------------------------------
  Provides a smooth scale effect on hover for interactive feedback.
*/
.toggle-btn,
button[type="submit"],
.nav-btn {
  transition: background 0.2s, color 0.2s, transform 0.2s;
}
.toggle-btn:hover,
button[type="submit"]:hover,
.nav-btn:hover {
  transform: scale(1.07);
}

/* Fade-in animation for sections and project cards on page load (CSS only) */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
main section,
.projects-grid .project-card {
  opacity: 0;
  animation: fadeInUp 0.8s ease forwards;
}
main section:nth-child(1) { animation-delay: 0.1s; }
main section:nth-child(2) { animation-delay: 0.3s; }
main section:nth-child(3) { animation-delay: 0.5s; }
main section:nth-child(4) { animation-delay: 0.7s; }

.projects-grid .project-card:nth-child(1) { animation-delay: 0.2s; }
.projects-grid .project-card:nth-child(2) { animation-delay: 0.4s; }
.projects-grid .project-card:nth-child(3) { animation-delay: 0.6s; }
.projects-grid .project-card:nth-child(4) { animation-delay: 0.8s; }
.projects-grid .project-card:nth-child(5) { animation-delay: 1.0s; }
.projects-grid .project-card:nth-child(6) { animation-delay: 1.2s; }
.projects-grid .project-card:nth-child(7) { animation-delay: 1.4s; }
.projects-grid .project-card:nth-child(8) { animation-delay: 1.6s; }
.projects-grid .project-card:nth-child(9) { animation-delay: 1.8s; }