* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Poppins', sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  transition: background 0.3s, color 0.3s;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

:root {
  --bg-color: #0d0d0d;
  --card-color: #1a1a1a;
  --text-color: #f1f1f1;
  --muted-color: #aaa;
  --accent-color: #00b4d8;
  --secondary-accent: #00ff99;
}
body.light-mode {
  --bg-color: #ffffff;
  --card-color: #f4f4f4;
  --text-color: #333333;
  --muted-color: #555;
  --accent-color: #0077cc;
  --secondary-accent: #008c5a;
}

/* Navbar */
header {
  background: var(--bg-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  position: sticky;
  top: 0;
  z-index: 100;
}
header h1 { font-size: 1.5rem; color: var(--text-color); }
nav ul { display: flex; gap: 25px; }
nav ul li a {
  color: var(--muted-color); font-weight: 500; transition: 0.3s;
}
nav ul li a:hover { color: var(--accent-color); }
.hire-btn {
  background: var(--accent-color); padding: 8px 16px; border-radius: 20px;
  color: #fff; font-weight: 600;
}
.theme-toggle {
  background: none;
  border: 2px solid var(--accent-color);
  border-radius: 50%;
  color: var(--accent-color);
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  margin-left: 15px;
}
.nav-actions { display: flex; align-items: center; gap: 10px; }

/* Hero */
.hero {
  display: grid; grid-template-columns: 1fr 2fr;
  gap: 40px; padding: 80px 40px; align-items: center;
}
.hero-card {
  background: var(--card-color); border-radius: 12px; padding: 30px; text-align: center;
}
.hero-card img {
  width: 150px; border-radius: 50%; border: 4px solid var(--accent-color); margin-bottom: 20px;
}
.hero-card h2 { font-size: 1.5rem; margin-bottom: 10px; }
.hero-card p { font-size: 0.95rem; color: var(--muted-color); }
.hero-card .socials { margin-top: 15px; }
.hero-card .socials a { margin: 0 8px; font-size: 1.2rem; color: var(--accent-color); }

.hero-content {
  background: var(--card-color); border-radius: 12px; padding: 40px;
}
.hero-content h3 { color: var(--muted-color); margin-bottom: 10px; }
.hero-content h1 { font-size: 2rem; margin-bottom: 20px; }
.hero-content p { margin-bottom: 20px; }
.hero-content .status { color: var(--secondary-accent); font-weight: bold; margin-bottom: 20px; }
.hero-content .btn {
  background: var(--accent-color); padding: 12px 24px; border-radius: 8px; color: #fff;
  font-weight: bold; transition: 0.3s;
}
.hero-content .btn:hover { filter: brightness(0.9); }

/* Footer */
footer { background: var(--bg-color); text-align: center; padding: 20px; color: var(--muted-color); }

/* Animations */
[data-animate] { opacity: 0; transform: translateY(30px); transition: 0.8s ease; }
[data-animate].active { opacity: 1; transform: translateY(0); }

/* Responsive */
@media (max-width: 768px) {
  .hero { grid-template-columns: 1fr; text-align: center; }
}

/* About Page */
.about-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 25px;
  margin-top: 30px;
}

.about-card {
  background: var(--card-color);
  padding: 25px;
  border-radius: 12px;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
}

.about-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.about-card i {
  font-size: 2rem;
  color: var(--accent-color);
  margin-bottom: 15px;
}

.about-card h3 {
  color: var(--accent-color);
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.about-card p {
  font-size: 0.95rem;
  color: var(--muted-color);
  line-height: 1.5;
}

.about-card ul {
  list-style: disc;
  text-align: left;
  margin-top: 10px;
  padding-left: 20px;
}

.about-card ul li {
  margin-bottom: 8px;
  color: var(--text-color);
}
/* Contact page layout */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
  max-width: 1000px;
  margin: auto;
}

.contact-info ul {
  list-style: none;
  margin-top: 20px;
}

.contact-info li {
  margin-bottom: 12px;
  font-size: 1rem;
}

.contact-info i {
  margin-right: 8px;
  color: var(--accent-color);
}

.contact-form form {
  background: var(--card-color);
  padding: 20px;
  border-radius: 10px;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

@media (max-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}
/* Projects Page */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.project-card {
  background: var(--card-color);
  padding: 20px;
  border-radius: 12px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.project-card:hover {
  transform: translateY(-5px);
  box-shadow: 0px 4px 10px rgba(0,0,0,0.3);
}

.project-card h3 {
  color: var(--accent-color);
  margin-bottom: 10px;
}

.project-card p {
  font-size: 0.95rem;
  color: var(--muted-color);
}

.project-card a {
  display: inline-block;
  margin-top: 10px;
  color: var(--accent-color);
  font-weight: 600;
}

/* Skills Page */
.skills-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
}

.skill {
  background: var(--card-color);
  padding: 15px 20px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: transform 0.3s, box-shadow 0.3s;
}

.skill:hover {
  transform: translateY(-4px);
  box-shadow: 0px 4px 12px rgba(0,0,0,0.25);
}

.skill i {
  font-size: 1.5rem;
  color: var(--accent-color);
}

.skill span {
  font-weight: 500;
}

/* Certifications Page */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 20px;
  margin-top: 30px;
}

.cert-card {
  background: var(--card-color);
  padding: 20px;
  border-radius: 12px;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
}

.cert-card:hover {
  transform: translateY(-5px);
  box-shadow: 0px 4px 10px rgba(0,0,0,0.3);
}

.cert-card img {
  width: 80px;
  height: auto;
  margin-bottom: 15px;
  background: #fff;
  padding: 10px;
  border-radius: 8px;
}

.cert-card h3 {
  color: var(--accent-color);
  font-size: 1.1rem;
  margin-bottom: 10px;
}

.cert-card p {
  font-size: 0.9rem;
  color: var(--muted-color);
}

.cert-card a {
  display: inline-block;
  margin-top: 10px;
  padding: 8px 14px;
  background: var(--accent-color);
  color: #fff;
  border-radius: 6px;
  font-weight: 600;
  transition: background 0.3s;
}

.cert-card a:hover {
  background: var(--secondary-accent);
}

/* Extra Mobile Tweaks */
@media (max-width: 600px) {
  header {
    flex-direction: column;
    align-items: flex-start;
    padding: 15px 20px;
  }

  nav ul {
    display: none; /* hide default nav */
    flex-direction: column;
    gap: 15px;
    margin-top: 10px;
  }

  nav.active ul {
    display: flex; /* show when active */
  }

  .menu-toggle {
    display: block;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--accent-color);
    margin-left: auto;
  }

  .hero {
    grid-template-columns: 1fr;
    padding: 40px 20px;
    text-align: center;
  }

  .skills-grid {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 15px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    padding: 20px;
  }

  input, textarea, button {
    font-size: 1rem;
  }
}
/* Hide hamburger by default */
.menu-toggle {
  display: none;
}

/* Show hamburger only on mobile */
@media (max-width: 768px) {
  .menu-toggle {
    display: block;
    font-size: 1.8rem;
    cursor: pointer;
    color: var(--accent-color);
    margin-left: auto;
  }

  nav ul {
    display: none;
    flex-direction: column;
    gap: 15px;
    margin-top: 10px;
    background: var(--card-color);
    padding: 15px;
    border-radius: 8px;
  }

  nav.active ul {
    display: flex;
  }
}