/* Modal styles */
.modal {
    display: none; /* Hidden by default */
    position: fixed; /* Stay in place */
    z-index: 1050; /* Sit on top, above header nav-toggle */
    left: 0;
    top: 0;
    width: 100%; /* Full width */
    height: 100%; /* Full height */
    overflow: auto; /* Enable scroll if needed */
    background-color: rgba(0,0,0,0.8); /* Black w/ opacity */
    /* padding-top: 60px; -- Replaced by flexbox for centering */
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.modal-content { /* This is the <img> tag */
    /* margin: auto; -- Replaced by flexbox for centering */
    display: block;
    max-width: 90vw; /* Max width relative to viewport width */
    max-height: 80vh; /* Max height relative to viewport height */
    width: auto; /* Maintain aspect ratio */
    height: auto; /* Maintain aspect ratio */
    border-radius: 16px; /* Increased border-radius */
    border: 2px solid #ddd; /* Subtle border around the image */
    background-color: #111; /* Fallback if image is transparent/fails to load */
}

#modalCaption {
    margin: 20px auto 10px auto; /* Increased top margin */
    display: block;
    width: 80%;
    max-width: 700px; /* Keep caption width manageable */
    text-align: center;
    color: #ddd; /* Slightly brighter caption color */
    padding: 10px 0;
    font-size: 1.15em; /* Slightly larger caption font */
    line-height: 1.4;
}

/* Close Button */
.close-modal-btn {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
}

.close-modal-btn:hover,
.close-modal-btn:focus {
    color: #e87722; /* Accent color on hover/focus */
    text-decoration: none;
    cursor: pointer;
}

/* Animations */
.modal.modal-opening {
    animation: fadeInOverlay 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.modal.modal-closing {
    animation: fadeOutOverlay 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.modal.modal-opening .modal-content,
.modal.modal-opening #modalCaption {
    animation: zoomInContent 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

.modal.modal-closing .modal-content,
.modal.modal-closing #modalCaption {
    animation: zoomOutContent 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
}

@keyframes fadeInOverlay {
    from { background-color: rgba(0,0,0,0); }
    to { background-color: rgba(0,0,0,0.8); }
}

@keyframes fadeOutOverlay {
    from { background-color: rgba(0,0,0,0.8); }
    to { background-color: rgba(0,0,0,0); }
}

@keyframes zoomInContent {
    from { transform: scale(0.85); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

@keyframes zoomOutContent {
    from { transform: scale(1); opacity: 1; }
    to { transform: scale(0.85); opacity: 0; }
}

/* Modal Navigation Buttons */
.modal-nav-btn {
    cursor: pointer;
    position: absolute;
    top: 50%;
    width: auto;
    padding: 16px;
    margin-top: -30px; /* Adjust to vertically center with padding */
    color: white;
    font-weight: bold;
    font-size: 24px;
    transition: 0.4s ease;
    border-radius: 0 3px 3px 0;
    user-select: none;
    background-color: rgba(0,0,0,0.3); /* Semi-transparent background */
}

.prev-modal-btn {
    left: 0;
    border-radius: 3px 0 0 3px; /* Adjust for left side */
}

.next-modal-btn {
    right: 0;
    border-radius: 0 3px 3px 0; /* Default is fine */
}

.modal-nav-btn:hover {
    background-color: rgba(0,0,0,0.6); /* Darker on hover */
    color: #e87722; /* Accent color on hover */
}

.modal-nav-btn.hidden { /* Class to hide buttons */
    display: none;
}


/* Responsive adjustments */
@media (max-width: 700px) {
    .modal-content {
        /* max-width and max-height from above should handle responsiveness well */
        /* If specific overrides are needed for small screens, they go here */
    }
    #modalCaption {
        width: 90%; /* Allow caption to use more width on small screens */
        font-size: 1em;
    }
    .close-modal-btn {
        top: 10px;
        right: 25px;
        font-size: 30px;
    }
    .modal-nav-btn {
        font-size: 18px;
        padding: 12px;
        margin-top: -25px;
    }
}