.error {
  color: #dc3545;
  font-size: 0.875em;
  margin-top: 0.25rem;
}

.success {
  color: #28a745;
  font-weight: 600;
  margin-bottom: 1rem;
}

body {
  background: #f9fafb;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 1rem;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

/* ‣ Sticky Header */
#header.sticky-top {
  top: 0;
  z-index: 1030;
}

/* ‣ Navbar separator style */
.navbar-nav .separator {
  opacity: 0.3;
  pointer-events: none;
  user-select: none;
}

/* ‣ Navbar links */
.navbar-nav .nav-link {
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.5px;
  text-transform: capitalize;
  color: #333 !important;
  transition: color 0.3s ease, background-color 0.3s ease;
  padding: 0.5rem 0.75rem;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus {
  color: #0d6efd !important;
  background-color: rgba(13, 110, 253, 0.05);
  border-radius: 4px;
}

.navbar-nav .nav-link.active {
  color: #0d6efd !important;
  font-weight: 700;
  border-bottom: 2px solid #0d6efd;
}

/* ‣ Buttons */
button.btn-primary {
  font-weight: 600;
  padding: 0.75rem;
  border-radius: 50px;
  box-shadow: 0 4px 15px rgb(13 110 253 / 0.3);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

button.btn-primary:hover {
  background-color: #0b5ed7;
  box-shadow: 0 6px 20px rgb(11 94 215 / 0.5);
}

/* ‣ Banner (Slider) */
.carousel-item {
  height: 480px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  position: relative;
}

.carousel-gradient {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.4),
    rgba(0, 0, 0, 0.8)
  );
  z-index: 1;
}

.carousel-caption {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  text-align: center;
  bottom: auto !important;
  padding: 0 1rem;
}

.banner-caption-bg {
  background-color: rgba(0, 0, 0, 0.6);
  padding: 1rem;
  border-radius: 0.5rem;
  max-width: 90%;
  width: 800px;
  margin: 0 auto;
}

.carousel-indicators [data-bs-target] {
  background-color: #0d6efd;
}

/* ‣ Responsive Styles */
@media (max-width: 768px) {
  #banner .carousel-item {
    height: 45vh;
  }

  .carousel-caption {
    top: 25% !important;
    padding: 0 10px;
  }

  .carousel-caption h1 {
    font-size: 1.5rem;
    line-height: 1.2;
  }

  .carousel-caption p {
    font-size: 1rem;
  }

  .banner-caption-bg {
    padding: 8px 14px;
    border-radius: 6px;
  }

  .carousel-control-prev-icon,
  .carousel-control-next-icon {
    width: 30px;
    height: 30px;
  }

  .carousel-indicators {
    bottom: 10px;
  }
}

/* ‣ About Section */
section#about {
  background: #fff;
  width: 100%;
  padding: 2.5rem 2rem 3rem;
  border-radius: 1rem;
  box-shadow: 0 8px 24px rgb(0 0 0 / 0.1);
}

#about a:hover {
  color: #ff9900 !important;
  text-decoration: underline;
}

/* ‣ Feature Section */
section#feature {
  background: #fff;
  width: 100%;
  padding: 2.5rem 2rem 3rem;
  border-radius: 1rem;
  box-shadow: 0 8px 24px rgb(0 0 0 / 0.1);
}

.feature-card {
  padding: 24px;
  border-radius: 8px;
  cursor: pointer;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.1);
  height: 100%;
  /* ‣ No fixed height */
}

.feature-card:hover {
  box-shadow: 0 0 15px rgba(0, 123, 255, 0.5);
  transform: translateY(-5px) scale(1.05);
}

/* ‣ Contact Section */
section#contact {
  background: #fff;
  width: 100%;
  padding: 2.5rem 4rem 3rem;
  border-radius: 1rem;
  box-shadow: 0 8px 24px rgb(0 0 0 / 0.1);
}

section#contact h2 {
  font-weight: 700;
  color: #0d6efd;
  margin-bottom: 2rem;
  text-align: center;
}

/* ‣ Input Focus Style */
.form-control:focus {
  border-color: #0d6efd;
  box-shadow: 0 0 0 0.25rem rgb(13 110 253 / 0.25);
}

/* ‣ Alerts */
.alert {
  margin-bottom: 1.5rem;
  border-radius: 0.75rem;
  font-weight: 600;
  font-size: 1rem;
}