/* Course Hero Section */
.course-hero {
    background: linear-gradient(to bottom, var(--primary-color-dark), var(--primary-color));
    color: #fff;
    padding: 60px 20px;
    text-align: center;
}

.course-header-content .course-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--accent-color);
}

.course-header-content h1 {
    font-size: 2.8rem;
    margin-bottom: 0.5rem;
}

.course-header-content p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto;
    opacity: 0.9;
}

/* Course Content Section */
.course-content {
    padding: 50px 0;
}

/* Accordion Styles */
.accordion {
    max-width: 900px;
    margin: 0 auto;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}

.accordion-item {
    border-bottom: 1px solid #e0e0e0;
}

.accordion-item:last-child {
    border-bottom: none;
}

.accordion-header {
    display: block;
    width: 100%;
    padding: 20px;
    background-color: #f9f9f9;
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color-dark);
    text-align: right;
    position: relative;
    transition: background-color 0.3s;
}

.accordion-header::before {
    content: '\f078'; /* FontAwesome down arrow */
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%) rotate(0deg);
    transition: transform 0.3s;
}

.accordion-item[open] > .accordion-header::before {
    transform: translateY(-50%) rotate(-180deg);
}

.accordion-header:hover {
    background-color: #f0f0f0;
}

.accordion-content {
    padding: 20px;
    background-color: #fff;
    border-top: 1px solid #e0e0e0;
}

.accordion-content p {
    line-height: 1.8;
    margin-bottom: 15px;
}

.accordion-content .btn-secondary {
    display: inline-block;
    background-color: var(--accent-color);
    color: #fff;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    font-weight: 600;
    transition: background-color 0.3s;
    margin-bottom: 20px;
}

.accordion-content .btn-secondary:hover {
    background-color: #00695c;
}

.accordion-content .btn-secondary i {
    margin-right: 8px;
}

/* Q&A Section */
.qa-section {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px dashed #ccc;
}

.qa-section h5 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-color-dark);
    margin-bottom: 15px;
}

.qa-item {
    margin-bottom: 15px;
}

.qa-item strong {
    display: block;
    margin-bottom: 5px;
    color: #333;
}

.qa-item p {
    margin: 0;
    padding-right: 15px;
    border-right: 3px solid var(--accent-color);
}

.accordion-placeholder {
    padding: 20px;
    text-align: center;
    background-color: #fafafa;
    color: #777;
}