/* ================= هدر دوره ================= */
.course-hero {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
    color: #fff;
    padding: 50px 0 60px;
    position: relative;
    overflow: hidden;
}

.course-hero::before {
    content: '';
    position: absolute;
    top: -100px;
    left: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(0, 180, 216, 0.25) 0%, transparent 70%);
    border-radius: 50%;
}

.breadcrumb-light {
    display: flex;
    gap: 10px;
    font-size: 14px;
    opacity: 0.85;
    margin-bottom: 30px;
    position: relative;
    z-index: 1;
}

.breadcrumb-light a:hover {
    color: var(--primary-light);
}

.course-hero-inner {
    display: grid;
    grid-template-columns: 1.5fr 1fr;
    gap: 50px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.course-hero-cat {
    display: inline-block;
    background: rgba(255, 255, 255, 0.15);
    padding: 6px 18px;
    border-radius: 50px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 18px;
}

.course-hero-title {
    font-size: 40px;
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.3;
}

.course-hero-desc {
    font-size: 17px;
    opacity: 0.9;
    margin-bottom: 26px;
    line-height: 1.9;
}

.course-hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    margin-bottom: 30px;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
}

.meta-item i {
    color: var(--primary-light);
}

.course-hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}

.course-hero-actions .btn-outline {
    color: #fff;
    border-color: rgba(255, 255, 255, 0.5);
}

.course-hero-actions .btn-outline:hover {
    background: #fff;
    color: var(--dark);
}

.course-hero-icon {
    display: flex;
    justify-content: center;
    align-items: center;
}

.course-hero-icon i {
    font-size: 200px;
    color: rgba(255, 255, 255, 0.1);
}

/* ================= بدنه دوره ================= */
.course-body-section {
    padding: 60px 0;
    background: var(--bg);
}

.course-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 40px;
    align-items: start;
}

.course-block {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 30px;
    margin-bottom: 24px;
}

.block-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 22px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.block-title i {
    color: var(--primary);
}

/* آکاردئون */
.accordion-item {
    border-bottom: 1px solid var(--border);
}

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

.accordion-header {
    width: 100%;
    background: none;
    border: none;
    padding: 16px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: inherit;
    font-size: 16px;
    font-weight: 600;
    color: var(--dark);
    cursor: pointer;
    text-align: right;
    transition: var(--transition);
}

.accordion-header:hover {
    color: var(--primary);
}

.accordion-header i {
    transition: var(--transition);
    color: var(--primary);
}

.accordion-item.open .accordion-header i {
    transform: rotate(180deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-item.open .accordion-content {
    max-height: 500px;
}

.accordion-content ul,
.accordion-content p {
    padding-bottom: 16px;
    color: var(--text-light);
    line-height: 2;
}

.accordion-content ul li {
    padding-right: 20px;
    position: relative;
}

.accordion-content ul li::before {
    content: '•';
    position: absolute;
    right: 0;
    color: var(--primary);
    font-weight: bold;
}

/* لیست ویژگی‌ها */
.feature-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    font-size: 15px;
}

.feature-list i {
    color: var(--primary);
    font-size: 16px;
}

/* امکانات */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.feature-box {
    background: var(--bg-light);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
}

.feature-box i {
    font-size: 28px;
    color: var(--primary);
    margin-bottom: 10px;
}

.feature-box h4 {
    font-size: 15px;
    color: var(--dark);
    margin-bottom: 4px;
}

.feature-box p {
    font-size: 13px;
    color: var(--text-light);
}

/* ================= ستون کناری ================= */
.sidebar-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 26px;
    position: sticky;
    top: 100px;
    box-shadow: var(--shadow);
}

.sidebar-card h3 {
    font-size: 19px;
    color: var(--dark);
    margin-bottom: 20px;
    text-align: center;
}

.sidebar-info {
    margin-bottom: 22px;
}

.sidebar-info li {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 0;
    border-bottom: 1px dashed var(--border);
    font-size: 14px;
    color: var(--text);
}

.sidebar-info li:last-child {
    border-bottom: none;
}

.sidebar-info i {
    color: var(--primary);
    width: 20px;
}

.sidebar-card .btn {
    margin-bottom: 10px;
}

.sidebar-note {
    font-size: 12px;
    color: var(--text-light);
    text-align: center;
    margin-top: 12px;
}

/* ================= ریسپانسیو ================= */
@media (max-width: 992px) {
    .course-layout {
        grid-template-columns: 1fr;
    }
    
    .course-hero-inner {
        grid-template-columns: 1fr;
    }
    
    .course-hero-icon {
        display: none;
    }
    
    .sidebar-card {
        position: static;
    }
}

@media (max-width: 768px) {
    .course-hero-title {
        font-size: 28px;
    }
    
    .course-block {
        padding: 22px;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}