body {
    background-color: #f6f8fb;
}

/* Navbar */
.navbar {
    background: linear-gradient(90deg, #1f2937, #111827);
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

/* Tagline bar */
.tagline-bar {
    background: #eef2ff;
    color: #4f46e5;
    font-weight: 500;
}

/* Course cards */
.course-card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 6px 18px rgba(0,0,0,0.08);
    transition: all 0.2s ease;
}

    .course-card:hover {
        transform: translateY(-3px);
        box-shadow: 0 12px 28px rgba(0,0,0,0.12);
    }

/* Buttons */
.btn-success {
    background: linear-gradient(135deg, #16a34a, #22c55e);
    border-radius: 8px;
    font-weight: 500;
}

    .btn-success:hover {
        background: linear-gradient(135deg, #15803d, #16a34a);
    }

/* Page title */
.page-title {
    font-weight: 700;
    color: #1f2937;
}

.spinner {
    width: 1rem;
    height: 1rem;
    border: 2px solid #fff;
    border-top: 2px solid transparent;
    border-radius: 50%;
    display: inline-block;
    animation: spin 0.7s linear infinite;
    margin-right: 6px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}


/*html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

html {
  position: relative;
  min-height: 100%;
}

body {
  margin-bottom: 60px;
}*/