body {
    font-family: 'Inter', sans-serif;
    color: #333;
    background-color: #f4f7f6;
}

.main-content-section {
    margin-top: 120px;
    padding-bottom: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

.catalog-container {
    width: 90%;
    max-width: 900px;
    padding: 30px;
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(224, 224, 224, 0.5);
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.catalog-header {
    width: 100%;
    background-color: transparent;
    padding: 18px 30px;
    border-bottom: 1px solid rgba(224, 230, 236, 0.7);
    text-align: center;
    border-radius: 12px 12px 0 0;
    box-shadow: none;
    margin-top: -30px;
    margin-left: -30px;
    margin-right: -30px;
    margin-bottom: 25px;
}

.catalog-header h2 {
    font-size: 1.6em;
    font-weight: 600;
    color: #000000;
    margin: 0;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    font-family: 'Inter', sans-serif;
}

.catalog-header p {
    font-size: 1.1em;
    color: #555;
    margin-top: 10px;
    margin-bottom: 0;
}

.catalog-images-wrapper {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 40px;
    padding: 0 20px;
    width: 100%;
    box-sizing: border-box;
}

.catalog-row {
    display: flex;
    justify-content: center;
    gap: 30px;
    width: 100%;
    box-sizing: border-box;
}

.catalog-item {
    width: calc(33.333% - 20px);
    flex-shrink: 0;
    background-color: transparent;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
    padding-bottom: 15px;
    box-sizing: border-box;
}

.catalog-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 25px rgba(0, 0, 0, 0.2);
}

.catalog-item .catalog-image-link {
    display: block;
    text-decoration: none;
    color: inherit;
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 10px;
}

.catalog-item img {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: 8px;
    display: block;
    aspect-ratio: 2 / 3;
}

.catalog-caption {
    font-size: 1em;
    font-weight: 500;
    color: #4a5568;
    margin-top: 15px;
    margin-bottom: 0;
}

.download-pdf-button {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background-color: rgba(255, 255, 255, 0.3);
    color: #555;
    padding: 5px 10px;
    border-radius: 20px;
    text-decoration: none;
    font-size: 0.6em;
    font-weight: 500;
    margin-top: 15px;
    border: none;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1),
                0 -1px 2px rgba(255, 255, 255, 0.7) inset;
}

.download-pdf-button:hover {
    background-color: rgba(137, 207, 240, 0.1);
    color: #444;
    transform: translateY(-2px);
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.15),
                0 -1px 2px rgba(255, 255, 255, 0.8) inset;
    border-color: transparent;
}

.download-pdf-button:active {
    transform: translateY(0);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

.download-pdf-button i {
    font-size: 1em;
}

@media (max-width: 992px) {
    .catalog-row {
        gap: 20px;
    }
    .catalog-item {
        width: calc(32% - 15px);
    }
    .catalog-item img {
        height: auto;
    }
    .catalog-caption {
        font-size: 0.95em;
    }
    .download-pdf-button {
        font-size: 0.6em;
        padding: 5px 10px;
    }
    .catalog-text-area {
        font-size: 1em;
    }
}

@media (max-width: 768px) {
    .main-content-section {
        margin-top: 110px;
        padding-bottom: 40px;
    }
    .catalog-container {
        padding: 20px;
        width: 95%;
    }
    .catalog-header {
        margin-top: -20px;
        margin-left: -20px;
        margin-right: -20px;
        padding: 15px 20px;
    }
    .catalog-header h2 {
        font-size: 1.3em;
    }
    .catalog-header p {
        font-size: 1em;
    }
    .catalog-images-wrapper {
        gap: 15px;
    }
    .catalog-row {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }
    .catalog-item {
        width: 60%;
        max-width: 250px;
    }
    .catalog-item img {
        height: auto;
    }
    .download-pdf-button {
        margin-top: 10px;
        font-size: 0.6em;
        padding: 5px 10px;
    }
    .catalog-text-area {
        font-size: 0.95em;
    }
}

@media (max-width: 480px) {
    .catalog-header h2 {
        font-size: 1.2em;
    }
    .catalog-header p {
        font-size: 0.9em;
    }
    .catalog-item {
        width: 80%;
        max-width: 215px;
    }
    .catalog-item img {
        height: auto;
    }
    .catalog-text-area {
        font-size: 0.85em;
    }
}