/* General Typography */
body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f9fafb;
  color: #333;
  scroll-behavior: smooth;
}

/* Navbar Custom Styles */
.navbar-custom {
  background: linear-gradient(90deg, #0d6efd 0%, #198754 100%);
  box-shadow: 0 2px 8px rgba(13, 110, 253, 0.3);
}
.navbar-custom .navbar-brand {
  font-weight: 700;
  font-size: 1.8rem;
}
.nav-links .nav-link {
  font-weight: 600;
  font-size: 1.1rem;
  transition: color 0.3s ease;
}
.nav-links .nav-link:hover,
.nav-links .nav-link.active {
  color: #ffc107 !important;
}

/* Hero Section */
.hero-section {
  height: 100vh;
  background: url('https://images.unsplash.com/photo-1524504388940-b1c1722653e1?auto=format&fit=crop&w=1350&q=80') no-repeat center center / cover;
  position: relative;
  padding-top: 100px;
  text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.7);
}
.hero-section .btn-primary {
  background-color: #ffc107;
  border: none;
  color: #212529;
  font-weight: 700;
  padding: 12px 30px;
  box-shadow: 0 4px 8px rgb(255 193 7 / 0.5);
  transition: background-color 0.3s ease;
}
.hero-section .btn-primary:hover {
  background-color: #e0a800;
  color: #fff;
}

/* Volunteer Form */
.volunteer-form {
  max-width: 700px;
  margin: 0 auto;
  border: 1px solid #dee2e6;
}
.volunteer-form label {
  font-size: 1rem;
  color: #495057;
}
.volunteer-form input,
.volunteer-form select,
.volunteer-form textarea {
  border-radius: 8px;
  border: 1.5px solid #ced4da;
  padding: 0.7rem 1rem;
  font-size: 1rem;
  transition: border-color 0.3s ease;
}
.volunteer-form input:focus,
.volunteer-form select:focus,
.volunteer-form textarea:focus {
  border-color: #0d6efd;
  box-shadow: 0 0 5px #0d6efd88;
  outline: none;
}
.btn-submit {
  font-size: 1.2rem;
  padding: 0.75rem 2.5rem;
  border-radius: 50px;
  transition: transform 0.2s ease;
}
.btn-submit:hover {
  transform: scale(1.05);
  box-shadow: 0 8px 15px rgba(25, 135, 84, 0.4);
}

/* About Section */
.about-section {
  background: linear-gradient(135deg, #e0f7fa, #b2ebf2);
}
.about-text {
  font-size: 1.2rem;
  max-width: 900px;
  margin-bottom: 2rem;
}
.about-card {
  background: white;
  border-left: 6px solid #0d6efd;
  transition: box-shadow 0.3s ease;
  cursor: default;
}
.about-card:hover {
  box-shadow: 0 8px 20px rgba(13, 110, 253, 0.3);
}
.about-card h4 {
  font-weight: 700;
  color: #0d6efd;
}
.about-card p {
  color: #555;
}

/* Footer */
.footer-custom {
  background-color: #212529;
  color: #adb5bd;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
  padding: 1rem 0;
}

/* Responsive spacing & font sizes */
@media (max-width: 767.98px) {
  .hero-section .display-3 {
    font-size: 2.5rem;
  }
  .volunteer-form {
    padding: 20px !important;
    border: none !important;
    box-shadow: none !important;
  }
  .about-card {
    border-left: none;
  }
}

/* Error Message Styling */
.error-message {
  font-style: italic;
  color: #dc3545;
  margin-top: 0.25rem;
}