/* Lessons-specific styles - MOBILE FIRST */

/* ===== MOBILE BASE STYLES ===== */
.lessons-container {
    width: 100%;
    margin: 0 auto;
    padding: 1rem;
}

@media (min-width: 768px) {
    .lessons-container {
        max-width: 1200px;
        padding: 2rem;
    }
}

.lessons-header {
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .lessons-header {
        margin-bottom: 2rem;
    }
}

.lessons-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .lessons-list {
        gap: 1rem;
        margin-bottom: 2rem;
    }
}

.lesson-card {
    display: flex;
    flex-direction: column;
    padding: 1rem;
    background: white;
    border: 2px solid #dee2e6;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    gap: 0.75rem;
}

@media (min-width: 576px) {
    .lesson-card {
        flex-direction: row;
        align-items: center;
        padding: 1.25rem;
        gap: 1rem;
    }
}

@media (min-width: 768px) {
    .lesson-card {
        padding: 1.5rem;
        gap: 1.5rem;
    }
}

.lesson-card:hover {
    border-color: #0d6efd;
    box-shadow: 0 2px 8px rgba(13, 110, 253, 0.15);
    transform: translateY(-2px);
}

.lesson-card.completed {
    border-color: #198754;
    background-color: #f8f9fa;
}

.lesson-card.completed:hover {
    border-color: #157347;
}

.lesson-number {
    font-size: 1rem;
    font-weight: bold;
    color: #6c757d;
    min-width: 60px;
    text-align: center;
}

@media (min-width: 576px) {
    .lesson-number {
        font-size: 1.1rem;
        min-width: 70px;
    }
}

@media (min-width: 768px) {
    .lesson-number {
        font-size: 1.25rem;
        min-width: 80px;
    }
}

.lesson-card.completed .lesson-number {
    color: #198754;
}

.lesson-content {
    flex: 1;
}

.lesson-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 0.5rem 0;
    color: #212529;
}

@media (min-width: 768px) {
    .lesson-title {
        font-size: 1.25rem;
    }
}

.lesson-preview {
    margin: 0;
    color: #6c757d;
    font-size: 0.85rem;
}

@media (min-width: 768px) {
    .lesson-preview {
        font-size: 0.95rem;
    }
}

.completed-badge {
    display: inline-block;
    margin-left: 0.5rem;
    padding: 0.2rem 0.6rem;
    background-color: #198754;
    color: white;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

@media (min-width: 768px) {
    .completed-badge {
        margin-left: 0.75rem;
        padding: 0.25rem 0.75rem;
        font-size: 0.85rem;
    }
}

.lesson-action {
    color: #0d6efd;
    font-weight: 500;
    font-size: 0.9rem;
    text-align: center;
}

@media (min-width: 576px) {
    .lesson-action {
        text-align: right;
        font-size: 1rem;
    }
}

.lessons-footer {
    margin-top: 1.5rem;
    text-align: center;
}

@media (min-width: 768px) {
    .lessons-footer {
        margin-top: 2rem;
    }
}

.no-lessons {
    text-align: center;
    padding: 2rem 1rem;
    background: #f8f9fa;
    border-radius: 8px;
}

@media (min-width: 768px) {
    .no-lessons {
        padding: 3rem;
    }
}

.no-lessons h2 {
    color: #6c757d;
    margin-bottom: 0.75rem;
    font-size: 1.5rem;
}

@media (min-width: 768px) {
    .no-lessons h2 {
        margin-bottom: 1rem;
        font-size: 2rem;
    }
}

.no-lessons p {
    color: #6c757d;
    margin-bottom: 1rem;
}

@media (min-width: 768px) {
    .no-lessons p {
        margin-bottom: 1.5rem;
    }
}