/* Global Styles */
:root {
  --primary-color: #1e40af; /* IIDM Blue */
  --primary-dark: #1e3a8a;
  --primary-light: #3b82f6;
  --secondary-color: #f59e0b; /* IIDM Gold */
  --secondary-dark: #d97706;
  --secondary-light: #fbbf24;
  --text-dark: #1f2937;
  --text-light: #6b7280;
  --white: #ffffff;
  --light-bg: #f9fafb;
  --border-color: #e5e7eb;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --info: #3b82f6;
}

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

body {
  font-family: "Inter", sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: var(--primary-color);
  transition: all 0.3s ease;
}

a:hover {
  color: var(--primary-dark);
}

.btn {
  font-weight: 500;
  padding: 0.5rem 1.5rem;
  border-radius: 0.375rem;
  transition: all 0.3s ease;
}

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

.btn-primary:hover {
  background-color: var(--primary-dark);
  border-color: var(--primary-dark);
}

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

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

.btn-secondary {
  background-color: var(--secondary-color);
  border-color: var(--secondary-color);
  color: var(--white);
}

.btn-secondary:hover {
  background-color: var(--secondary-dark);
  border-color: var(--secondary-dark);
}

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

.btn-outline-light:hover {
  background-color: var(--white);
  color: var(--primary-color);
}

.section-header {
  margin-bottom: 3rem;
}

.section-tag {
  display: inline-block;
  background-color: rgba(59, 130, 246, 0.1);
  color: var(--primary-color);
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-dark);
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-light);
  max-width: 800px;
  margin: 0 auto;
}

/* Navbar Styles */
.navbar-container {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar {
  padding: 1rem 0;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
}

.navbar-nav .nav-item {
  margin: 0 0.5rem;
}

.navbar-nav .nav-link {
  color: var(--text-dark);
  font-weight: 500;
  padding: 0.5rem 0.75rem;
  transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--primary-color);
}

/* Footer Styles */
.footer {
  background-color: var(--primary-color);
  color: var(--white);
  padding: 4rem 0 0;
}

.footer-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--white);
}

.footer-about p {
  margin-bottom: 1.5rem;
  opacity: 0.8;
}

.social-links {
  display: flex;
  gap: 1rem;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--white);
  border-radius: 50%;
  transition: all 0.3s ease;
}

.social-links a:hover {
  background-color: var(--secondary-color);
  color: var(--white);
}

.footer-links ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  transition: all 0.3s ease;
}

.footer-links a:hover {
  color: var(--white);
  padding-left: 5px;
}

.footer-contact p {
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  opacity: 0.8;
}

.footer-contact i {
  margin-right: 0.75rem;
  width: 16px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.5rem 0;
  margin-top: 3rem;
}

.copyright {
  margin-bottom: 0;
  opacity: 0.8;
}

.footer-bottom-links {
  display: flex;
  justify-content: flex-end;
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-bottom-links li {
  margin-left: 1.5rem;
}

.footer-bottom-links a {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.875rem;
}

.footer-bottom-links a:hover {
  color: var(--white);
}

/* Back to Top Button */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 40px;
  height: 40px;
  background-color: var(--primary-color);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  z-index: 999;
}

.back-to-top.active {
  opacity: 1;
  visibility: visible;
}

.back-to-top:hover {
  background-color: var(--primary-dark);
  color: var(--white);
}

/* Responsive Styles */
@media (max-width: 991.98px) {
  .navbar-nav {
    margin-top: 1rem;
  }

  .navbar-nav .nav-item {
    margin: 0;
  }

  .navbar-nav .nav-link {
    padding: 0.5rem 0;
  }

  .footer-bottom-links {
    justify-content: flex-start;
    margin-top: 1rem;
  }

  .footer-bottom-links li {
    margin-left: 0;
    margin-right: 1.5rem;
  }
}

@media (max-width: 767.98px) {
  .section-title {
    font-size: 1.75rem;
  }

  .section-subtitle {
    font-size: 1rem;
  }
}