/* =========================
   Base Containers
   ========================= */

.cpp-container,
.cpp-narrow-container,
.cpp-very-narrow-container,
.cpp-three-by-six-container {
    display: grid;
    gap: 10px;
    background-color: white;
    padding: 5px;
}

.cpp-container {
    border: 2px solid #FFFFFF;
    border-radius: 15px;
}

/* =========================
   Grid Items
   ========================= */

.cpp-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 10px;
    min-height: 170px; /* allows space for label */
    text-align: center;
}

.cpp-image {
    max-width: 100%;
    max-height: 130px;
    cursor: pointer;
    transition: transform 0.2s ease-in-out;
}

.cpp-image:hover {
    transform: scale(1.05);
}

/* =========================
   Label Styling
   ========================= */

.cpp-label {
    margin-top: 6px;
    font-size: 10px;
    color: #666;
    line-height: 1.3;
    letter-spacing: 0.02em;
}

/* =========================
   Desktop Layout
   ========================= */

@media (min-width: 768px) {
    .cpp-container {
        grid-template-columns: repeat(5, 1fr);
        grid-auto-rows: auto;
    }

    .cpp-narrow-container {
        grid-template-columns: repeat(4, 1fr);
        grid-auto-rows: auto;
    }

    .cpp-very-narrow-container {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: auto;
    }

    .cpp-three-by-six-container {
        grid-template-columns: repeat(3, 1fr);
        grid-auto-rows: auto;
    }
}

/* =========================
   Mobile Layout
   ========================= */

@media (max-width: 767px) {
    .cpp-container,
    .cpp-narrow-container,
    .cpp-very-narrow-container,
    .cpp-three-by-six-container {
        grid-template-columns: repeat(2, 1fr);
        grid-auto-rows: auto;
        gap: 5px;
    }

    .cpp-item {
        padding: 6px;
        min-height: 150px;
    }

    .cpp-image {
        max-width: 80%;
        height: auto;
    }

    .cpp-label {
        font-size: 10px;
    }
}

/* =========================
   Dropdown Styling
   ========================= */

#cpp-chapter-select {
    margin: 10px 0;
    padding: 5px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 4px;
    background-color: #f9f9f9;
    display: block;
}

/* =========================
   Loader
   ========================= */

.cpp-loader {
    text-align: center;
    font-size: 16px;
    color: gray;
    padding: 20px;
}