/* تنسيقات صفحة تفاصيل الدورة */
    
    /* 1. قسم الهيرو الخاص بالدورة */
    .course-hero {
        background-color: var(--dark-green);
        color: var(--light-bg);
        padding: 100px 5% 60px 5%;
        text-align: right;
        border-bottom: 8px solid var(--gold-accent);
        background-image: radial-gradient(circle at 10% 50%, rgba(177, 125, 43, 0.1) 0%, transparent 50%);
    }

    .course-badge {
        display: inline-block;
        background-color: rgba(177, 125, 43, 0.2);
        color: var(--gold-accent);
        padding: 5px 15px;
        border-radius: 20px;
        font-weight: bold;
        font-size: 14px;
        margin-bottom: 15px;
        border: 1px solid var(--gold-accent);
    }

    .course-title {
        font-size: 42px;
        margin-bottom: 20px;
        font-family: 'Changa', sans-serif;
    }

    .course-meta {
        display: flex;
        gap: 30px;
        font-size: 16px;
        opacity: 0.9;
        flex-wrap: wrap;
    }

    .course-meta span i {
        margin-left: 8px;
        color: var(--gold-accent);
    }

    /* 2. التقسيم الشبكي (المحتوى + الشريط الجانبي) */
    .course-container {
        padding: 60px 5%;
        display: grid;
        grid-template-columns: 2fr 1fr;
        gap: 40px;
        background-color: var(--light-bg);
    }

    /* 3. نظام التبويبات (Tabs) */
    .tabs-header {
        display: flex;
        border-bottom: 2px solid var(--overlay);
        margin-bottom: 30px;
        overflow-x: auto;
    }

    .tab-btn {
        padding: 15px 25px;
        font-size: 18px;
        font-weight: 700;
        font-family: 'Changa', sans-serif;
        color: var(--text-on-light);
        cursor: pointer;
        border-bottom: 3px solid transparent;
        transition: 0.3s;
        white-space: nowrap;
    }

    .tab-btn.active {
        color: var(--dark-green);
        border-bottom-color: var(--dark-green);
    }

    .tab-btn:hover:not(.active) {
        color: var(--gold-accent);
    }

    .tab-content {
        display: none;
        animation: fadeIn 0.4s ease;
        line-height: 1.8;
        font-size: 16px;
        color: var(--dark-green);
    }

    .tab-content.active {
        display: block;
    }

    .content-box {
        background-color: #fff;
        padding: 30px;
        border-radius: 12px;
        box-shadow: 0 4px 15px rgba(0,0,0,0.03);
        margin-bottom: 20px;
    }

    .content-title {
        font-size: 22px;
        color: var(--dark-green);
        margin-bottom: 15px;
        font-family: 'Changa', sans-serif;
        display: flex;
        align-items: center;
        gap: 10px;
    }

    .content-title i { color: var(--gold-accent); }

    /* 4. الشريط الجانبي (Sidebar) */
    .course-sidebar {
        background-color: #fff;
        padding: 30px;
        border-radius: 12px;
        box-shadow: 0 4px 15px rgba(0,0,0,0.05);
        height: fit-content;
        position: sticky;
        top: 100px;
        border-top: 5px solid var(--dark-green);
    }

    .sidebar-price {
        font-size: 32px;
        font-weight: bold;
        color: var(--dark-green);
        text-align: center;
        margin-bottom: 20px;
        font-family: 'Changa', sans-serif;
    }

    .btn-enroll {
        display: block;
        width: 100%;
        text-align: center;
        background-color: var(--gold-accent);
        color: #fff;
        padding: 15px;
        font-size: 18px;
        font-weight: bold;
        border-radius: 8px;
        text-decoration: none;
        transition: 0.3s;
        margin-bottom: 20px;
    }

    .btn-enroll:hover {
        background-color: var(--dark-green);
        box-shadow: 0 5px 15px rgba(177, 125, 43, 0.3);
    }

    .sidebar-list {
        list-style: none;
        padding: 0;
        margin: 0;
    }

    .sidebar-list li {
        display: flex;
        justify-content: space-between;
        padding: 15px 0;
        border-bottom: 1px solid var(--overlay);
        color: var(--dark-green);
        font-weight: 600;
    }

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

    @keyframes fadeIn {
        from { opacity: 0; transform: translateY(10px); }
        to { opacity: 1; transform: translateY(0); }
    }

    @media (max-width: 992px) {
        .course-container { grid-template-columns: 1fr; }
        .course-sidebar { position: static; margin-top: 30px; }
    }