/* Course Container */
.fceu-course-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Course Header */
.fceu-course-header {
    background: white;
    padding: 30px 40px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 30px;
}

.fceu-back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    margin-bottom: 15px;
}

.fceu-back-link:hover {
    text-decoration: underline;
}

.fceu-course-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--dark-color);
    margin: 0 0 15px 0;
    line-height: 1.2;
}

.fceu-course-meta-info {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.fceu-meta-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--gray-100);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
}

/* Progress Circle */
.fceu-course-progress-summary {
    flex-shrink: 0;
}

.fceu-progress-circle {
    width: 120px;
    height: 120px;
}

.fceu-circular-chart {
    display: block;
    margin: 0 auto;
    max-width: 100%;
    max-height: 100%;
}

.fceu-circle-bg {
    fill: none;
    stroke: var(--gray-200);
    stroke-width: 3;
}

.fceu-circle {
    fill: none;
    stroke: var(--primary-color);
    stroke-width: 3;
    stroke-linecap: round;
    animation: progress 1s ease-out forwards;
}

.fceu-percentage {
    fill: var(--dark-color);
    font-size: 0.5em;
    font-weight: 700;
    text-anchor: middle;
}

/* Course Layout */
.fceu-course-layout {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 30px;
}

/* Sidebar */
.fceu-course-sidebar {
    position: relative;
}

.fceu-sidebar-sticky {
    position: sticky;
    top: 20px;
    background: white;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.fceu-sidebar-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--dark-color);
    margin: 0 0 20px 0;
}

.fceu-section-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.fceu-section-nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--gray-700);
    transition: all 0.2s;
    border: 2px solid transparent;
}

.fceu-section-nav-item:hover {
    background: var(--gray-100);
}

.fceu-section-nav-item.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.fceu-section-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--gray-200);
    color: var(--gray-700);
    border-radius: 50%;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
}

.fceu-section-nav-item.active .fceu-section-number {
    background: white;
    color: var(--primary-color);
}

.fceu-section-nav-title {
    flex: 1;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.3;
}

.fceu-section-status {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid var(--gray-300);
}

.fceu-section-nav-item.completed .fceu-section-status {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
}

.fceu-section-nav-item.completed .fceu-section-status::after {
    content: '✓';
    color: white;
    font-size: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Main Content */
.fceu-course-main {
    min-width: 0;
}

.fceu-course-content {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.fceu-course-section {
    margin-bottom: 50px;
    padding-bottom: 30px;
    border-bottom: 2px solid var(--gray-200);
}

.fceu-course-section:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
    border-bottom: none;
}

.fceu-section-header {
    margin-bottom: 24px;
}

.fceu-section-title {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 28px;
    font-weight: 700;
    color: var(--dark-color);
    margin: 0;
}

.fceu-section-number-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--primary-color);
    color: white;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 700;
}

.fceu-section-content {
    font-size: 16px;
    line-height: 1.8;
    color: var(--gray-700);
}

.fceu-section-content h3,
.fceu-section-content h4 {
    margin-top: 30px;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.fceu-section-content p {
    margin-bottom: 20px;
}

.fceu-section-content ul,
.fceu-section-content ol {
    margin-bottom: 20px;
    padding-left: 30px;
}

.fceu-section-content li {
    margin-bottom: 10px;
}

.fceu-section-footer {
    margin-top: 30px;
    display: flex;
    justify-content: flex-end;
}

.fceu-btn-outline {
    background: white;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.fceu-btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

/* Course Completion */
.fceu-course-completion {
    margin-top: 40px;
}

.fceu-completion-card {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #059669 100%);
    color: white;
    padding: 50px;
    border-radius: 12px;
    text-align: center;
}

.fceu-completion-icon {
    font-size: 80px;
    margin-bottom: 20px;
}

.fceu-completion-card h3 {
    font-size: 32px;
    margin: 0 0 15px 0;
}

.fceu-completion-card p {
    font-size: 18px;
    margin: 0 0 30px 0;
    opacity: 0.9;
}

.fceu-btn-lg {
    padding: 16px 32px;
    font-size: 16px;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .fceu-course-layout {
        grid-template-columns: 250px 1fr;
    }

    .fceu-course-content {
        padding: 30px;
    }
}

@media (max-width: 768px) {
    .fceu-course-header {
        flex-direction: column;
        align-items: flex-start;
        padding: 20px;
    }

    .fceu-course-title {
        font-size: 24px;
    }

    .fceu-course-layout {
        grid-template-columns: 1fr;
    }

    .fceu-sidebar-sticky {
        position: static;
    }

    .fceu-course-content {
        padding: 20px;
    }

    .fceu-section-title {
        font-size: 22px;
        flex-direction: column;
        align-items: flex-start;
    }

    .fceu-completion-card {
        padding: 30px 20px;
    }

    .fceu-completion-card h3 {
        font-size: 24px;
    }
}


/* Completed button styles */
.fceu-mark-complete-btn.completed {
    background:  var(--secondary-color);
    border-color: var(--secondary-color);
    color: white;
    cursor: default;
}

.fceu-mark-complete-btn.completed:hover {
    background: var(--secondary-color);
    border-color: var(--secondary-color);
    color: white;
}