/* General Colors */
:root {
  --primary-color: #40e0d0;
  --secondary-color: #008080;
  --background-light: #f5fffa;
  --background-dark: #005f5f;
  --accent-color: #ff7f50;
}

/* Body and Background */
body {
  font-family: "Lato", sans-serif;
  background-color: var(--background-light);
  color: var(--secondary-color);
}

/* Navbar */
.navbar {
  background-color: var(--background-light);
  border-bottom: 2px solid var(--primary-color);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); /* Add subtle shadow */
}

.navbar-brand {
  color: var(--secondary-color);
  font-size: 1.5rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.nav-link {
  color: var(--secondary-color);
  font-weight: bold;
  transition: color 0.3s ease;
}

.nav-link:hover {
  color: var(--accent-color); /* Coral for hover */
}

.btn-outline-primary {
  color: var(--primary-color);
  border-color: var(--primary-color);
}

.btn-outline-primary:hover {
  background-color: var(--primary-color);
  color: #fff;
}

/* Hero Section */
.hero {
  min-height: 90vh;
  background: linear-gradient(
    135deg,
    var(--primary-color),
    var(--secondary-color)
  );
  color: #fff;
  padding: 2rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2); /* Add text shadow for contrast */
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.hero p {
  font-size: 1.5rem;
  margin-top: 1rem;
}

.hero .btn-primary {
  background-color: var(--accent-color);
  border-color: var(--accent-color);
  font-size: 1.2rem;
  padding: 0.75rem 1.5rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hero .btn-primary:hover {
  background-color: var(--secondary-color);
  border-color: var(--secondary-color);
  transform: translateY(-3px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2); /* Add hover effect */
}

section {
  padding: 4rem 0;
}

/* Ensure anchor targets are not hidden behind the navbar.
   This also helps with AOS animations, which can shift section headings. */
section[id] {
  scroll-margin-top: 80px; /* Adjust to match your navbar height */
}

/* About Section */
#about {
  background-color: var(--background-light);
}

#about img {
  /* Removed the border property */
  border-radius: 50%; /* Keep the image circular */
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2); /* Add shadow for depth */
}

#about p {
  font-size: 1.2rem;
  line-height: 1.8;
}

h2 {
  font-size: 2.5rem; /* Consistent font size */
  font-weight: bold; /* Uniform weight */
  text-transform: uppercase; /* All headings in uppercase */
  letter-spacing: 1.5px; /* Consistent letter spacing */
  margin-bottom: 2rem; /* Uniform spacing below headings */
  text-align: center; /* Center-align all headings */
}

/* Projects Section */
#projects {
  background-color: var(--background-dark);
  color: #fff;
}

.card {
  background-color: var(--background-light);
  border: none;
  border-radius: 0.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1); /* Add shadow for depth */
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 12px rgba(0, 0, 0, 0.2); /* Add hover effect */
}

.card-title {
  font-weight: bold;
  color: var(--secondary-color);
  font-size: 1.5rem;
}

/* Skills Section */
#skills {
  background-color: var(--background-light);
}

#skills .row {
  justify-content: center; /* Center-align the skill cards */
}

.skill-card {
  background-color: var(--primary-color); /* Turquoise */
  color: #fff;
  font-size: 1.2rem;
  font-weight: bold;
  text-align: center;
  padding: 1.5rem;
  border-radius: 0.5rem;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  margin: 0 auto; /* Center the card within its column */
}

.skill-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 12px rgba(0, 0, 0, 0.2);
  background-color: var(--accent-color); /* Coral on hover */
}

.skill-card span {
  display: block;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Contact Section */
#contact {
  background-color: var(--background-dark);
  color: #fff;
}

#contact p {
  font-size: 1.2rem;
  line-height: 1.8;
}

#contact .btn-outline-primary {
  color: var(--accent-color);
  border-color: var(--accent-color);
  font-weight: bold;
  padding: 0.75rem 1.5rem;
  font-size: 1.2rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

#contact .btn-outline-primary:hover {
  background-color: var(--accent-color);
  color: #fff;
  border-color: var(--accent-color);
  transform: translateY(-3px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2); /* Add hover effect */
}

/* Footer */
footer.footer {
  background-color: var(--secondary-color);
  color: #fff;
  padding: 2rem 0;
  text-align: center;
  font-size: 0.95rem;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-top: 2px solid var(--primary-color);
}

.footer-icon-link {
  color: #fff;
  font-size: 1.6rem;
  transition: color 0.2s;
  vertical-align: middle;
  text-decoration: none; /* Remove underline */
  outline: none;
}

.footer-icon-link:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

.footer-icon-link:hover {
  color: var(--primary-color);
  text-decoration: none;
}

.footer-backtotop {
  color: #fff;
  font-size: 1.1rem;
  text-transform: none;
  letter-spacing: 0.5px;
  transition: color 0.2s;
}

.footer-backtotop:hover {
  color: var(--primary-color);
  text-decoration: none;
}

.footer-backtotop i {
  vertical-align: middle;
  margin-right: 0.3em;
}

/* Tech Stack Section */
#techstack {
  background-color: var(--background-light);
}

#techstack h2 {
  /* Inherit global h2 styles */
}

#techstack img {
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.08));
  transition: transform 0.2s;
}

#techstack img:hover {
  transform: scale(1.15) rotate(-5deg);
}

#techstack .mt-2 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--secondary-color);
  margin-top: 0.5rem;
  letter-spacing: 1px;
}

/* Dark Mode Styles */
body.dark-mode {
  background-color: #181c1f;
  color: #e6e6e6;
}

body.dark-mode .navbar,
body.dark-mode .navbar-light,
body.dark-mode .bg-light {
  background-color: #23272b !important;
  border-bottom-color: var(--primary-color);
}

body.dark-mode .navbar-brand,
body.dark-mode .nav-link,
body.dark-mode .navbar .btn-outline-secondary {
  color: #e6e6e6 !important;
}

body.dark-mode .navbar .btn-outline-secondary {
  border-color: #444;
  background: #23272b;
}

body.dark-mode .navbar .btn-outline-secondary:hover {
  background: #444;
  color: #fff !important;
}

body.dark-mode section,
body.dark-mode #about,
body.dark-mode #skills,
body.dark-mode #techstack {
  background-color: #23272b !important;
  color: #e6e6e6;
}

body.dark-mode .card {
  background-color: #23272b;
  color: #e6e6e6;
  border: none;
}

body.dark-mode .card-title {
  color: var(--primary-color);
}

body.dark-mode .skill-card {
  background-color: #2d3a3f;
  color: #fff;
}

body.dark-mode .skill-card:hover {
  background-color: var(--accent-color);
  color: #fff;
}

body.dark-mode #techstack img {
  filter: brightness(0.85) drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

body.dark-mode #techstack .mt-2 {
  color: #e6e6e6;
}

body.dark-mode footer {
  background-color: #23272b !important;
  color: #e6e6e6;
  border-top-color: var(--primary-color);
}

body.dark-mode h2 {
  color: #fff;
}

body.dark-mode #about h2,
body.dark-mode #skills h2,
body.dark-mode #techstack h2 {
  color: #fff;
}