/* --- CSS Variables --- */
:root {
    /* Light Mode Colors */
    --bg-color: #f0f0f0;
    --text-color: #333;
    --panel-bg-color: #fff;
    --border-color: #ccc;
    --button-bg-color: #e9e9e9;
    --button-hover-bg-color: #dcdcdc;
    --button-active-bg-color: #c8c8c8; /* Added for active toggle state */
    --button-primary-bg-color: #007bff;
    --button-primary-text-color: #fff;
    --button-secondary-bg-color: #6c757d;
    --button-secondary-text-color: #fff;
    --button-danger-bg-color: #dc3545;
    --button-danger-text-color: #fff;
    --input-bg-color: #fff;
    --input-border-color: #ccc;
    --input-text-color: var(--text-color); /* Added for input field */
    --disabled-opacity: 0.6;
    --highlight-color: #c00;
    --status-error-color: #c00;
    --status-success-color: #08873d;
    --link-color: #007bff;
    --modal-overlay-bg: rgba(0, 0, 0, 0.6); /* Slightly darker overlay */
    --modal-bg-color: #fff;
    --modal-border-color: #aaa;
    --modal-text-color: #333;
    --hr-color: #ddd;

    /* Flag Editor Specifics */
    --fe-shadow: 0 2px 4px -1px rgba(0, 0, 0, 0.08), 0 1px 2px -1px rgba(0, 0, 0, 0.05);
    --fe-shadow-lg: 0 5px 10px -3px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
    --fe-fixed-radius: 8px;
    --fe-frame-thickness: 10px; /* User settable via CSS, read by JS */
    --fe-corner-radius: 8px;  /* User settable via CSS, read by JS */
    --fe-content-light-bg: #f8f9fa;
    --fe-text-secondary: #6c757d;
    --fe-text-muted: #adb5bd;
    --fe-preview-bg: #e9ecef;
    --fe-progress-bar-bg: #e9ecef;
    --fe-upload-border-dashed: #adb5bd;
    --fe-upload-border-active: var(--link-color);
    --fe-scrollbar-thumb: #adb5bd;
    --fe-scrollbar-track: #e9ecef;
    --fe-thumbnail-bg: var(--fe-preview-bg);
    --fe-cropper-outline: var(--link-color);
    --fe-cropper-face-bg: rgba(0, 123, 255, 0.1);
    --fe-cropper-point-bg: var(--link-color);
    --fe-cropper-line-bg: var(--link-color);
}

body.dark-mode {
    /* Dark Mode Colors */
    --bg-color: #2c2c2c;
    --text-color: #e0e0e0;
    --panel-bg-color: #3a3a3a;
    --border-color: #555;
    --button-bg-color: #505050;
    --button-hover-bg-color: #666666;
    --button-active-bg-color: #777777; /* Added for active toggle state */
    --button-primary-bg-color: #58a6ff;
    --button-primary-text-color: #1c1c1c;
    --button-secondary-bg-color: #8b949e;
    --button-secondary-text-color: #e0e0e0;
    --button-danger-bg-color: #f85149;
    --button-danger-text-color: #fff;
    --input-bg-color: #444;
    --input-border-color: #666;
    --input-text-color: var(--text-color); /* Added for input field */
    --highlight-color: #ff6666;
    --status-error-color: #ff8a8a;
    --status-success-color: #58d68d;
    --link-color: #58a6ff;
    --modal-overlay-bg: rgba(0, 0, 0, 0.75); /* Slightly darker overlay */
    --modal-bg-color: #3a3a3a;
    --modal-border-color: #666;
    --modal-text-color: #e0e0e0;
    --hr-color: #555;

     /* Flag Editor Specifics (Dark) */
    --fe-content-light-bg: #495057;
    --fe-text-secondary: #adb5bd;
    --fe-text-muted: #6c757d;
    --fe-preview-bg: #495057;
    --fe-progress-bar-bg: #495057;
    --fe-upload-border-dashed: #6c757d;
    --fe-upload-border-active: var(--link-color);
    --fe-scrollbar-thumb: #6c757d;
    --fe-scrollbar-track: #495057;
    --fe-thumbnail-bg: var(--fe-preview-bg);
    --fe-cropper-face-bg: rgba(88, 166, 255, 0.15);
    --fe-cropper-outline: var(--link-color);
    --fe-cropper-point-bg: var(--link-color);
    --fe-cropper-line-bg: var(--link-color);
}

/* --- Base & General Styles --- */
* { margin: 0; padding: 0; box-sizing: border-box; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol"; }
html {
    font-size: 80%; /* Set base font size to 80% for zoom-out effect */
}
html, body { height: 100%; margin: 0; padding: 0; }
body { background-color: var(--bg-color); color: var(--text-color); line-height: 1.6; transition: background-color 0.3s, color 0.3s; }
.container {
    max-width: 1100px;
    margin: 2rem auto;
    padding: 1rem; /* Reset padding */
    position: relative; /* Needed for help button positioning */
}

/* --- Header --- */
header {
    text-align: center;
    margin-bottom: 2rem;
    position: relative; /* Keep relative for potential future absolute elements inside */
    padding-top: 0.5rem; /* Minimal top padding */
}
h1 { font-size: 2.25rem; margin-bottom: 0.5rem; font-weight: 700; color: var(--link-color); }
.subheading { color: var(--text-color); opacity: 0.8; font-size: 1rem; max-width: 700px; margin: 0 auto 1.5rem auto; }

/* --- Search Panel --- */
.search-panel {
    position: fixed; /* Position relative to viewport */
    top: 1.25rem;    /* Match help button top */
    left: 10px;      /* <<< CLOSE TO THE EDGE */
    width: 280px;    /* Adjust width as needed */
    z-index: 998;    /* Below help button but high */
}

#searchInput {
    width: 100%;
    padding: 0.6rem 0.8rem;
    font-size: 0.95rem;
    border: 1px solid var(--border-color);
    border-radius: var(--fe-fixed-radius);
    background-color: var(--input-bg-color);
    color: var(--input-text-color);
    box-shadow: var(--fe-shadow);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

#searchInput:focus {
    outline: none;
    border-color: var(--link-color);
    box-shadow: 0 0 0 2px var(--link-color);
}

.search-results {
    display: none; /* Hidden by default */
    position: absolute;
    top: calc(100% + 5px); /* Position below the input */
    left: 0;
    right: 0;
    background-color: var(--panel-bg-color);
    border: 1px solid var(--border-color);
    border-radius: var(--fe-fixed-radius);
    box-shadow: var(--fe-shadow-lg);
    max-height: 300px; /* Limit height */
    overflow-y: auto;
    z-index: 999; /* Above search input, potentially above other elements */
    scrollbar-width: thin;
    scrollbar-color: var(--fe-scrollbar-thumb) var(--fe-scrollbar-track);
}
.search-results::-webkit-scrollbar { width: 6px; }
.search-results::-webkit-scrollbar-track { background: var(--fe-scrollbar-track); border-radius: 3px; }
.search-results::-webkit-scrollbar-thumb { background-color: var(--fe-scrollbar-thumb); border-radius: 3px; }

.search-result-item {
    display: flex;
    align-items: center;
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.15s ease;
    gap: 0.75rem; /* Space between image and text */
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-item:hover {
    background-color: var(--button-hover-bg-color);
}

.search-result-item img {
    width: 40px;  /* Fixed width for flag preview */
    height: 25px; /* Fixed height (adjust based on typical flag ratio) */
    object-fit: contain; /* Ensure flag isn't distorted */
    flex-shrink: 0; /* Prevent image from shrinking */
    background-color: var(--fe-preview-bg); /* Background for transparency */
    border: 1px solid var(--border-color);
    border-radius: 3px;
}

.search-result-item span {
    font-size: 0.9rem;
    color: var(--text-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis; /* Add ellipsis for long names */
    flex-grow: 1; /* Allow text to take remaining space */
}

.search-results.empty { /* Style for when no results found */
    padding: 0.75rem;
    text-align: center;
    font-style: italic;
    color: var(--fe-text-muted);
    font-size: 0.9rem;
}


/* --- Help Button --- */
#helpBtn {
    position: fixed; /* Position relative to viewport */
    top: 1.25rem;
    right: 1.25rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--button-secondary-bg-color);
    color: var(--button-secondary-text-color);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem; /* Adjust icon size */
    font-weight: bold;
    cursor: pointer;
    box-shadow: var(--fe-shadow-lg);
    z-index: 999;
    transition: background-color 0.2s ease, transform 0.2s ease;
}
#helpBtn:hover {
    background-color: var(--button-hover-bg-color);
    transform: scale(1.05);
}
#helpBtn svg {
    width: 1.2em; /* Control SVG size within button */
    height: 1.2em;
    fill: currentColor;
}

/* --- Help Modal --- */
.help-modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: var(--modal-overlay-bg);
    backdrop-filter: blur(4px);
    z-index: 1200; /* Above other elements */
    display: none; /* Hidden by default */
    align-items: center; /* Vertically center */
    justify-content: center; /* Horizontally center */
    padding: 2rem; /* Add padding around the modal content */
    animation: fadeIn 0.3s ease-out;
}
.help-modal-content {
    background-color: var(--modal-bg-color);
    color: var(--modal-text-color);
    border: 1px solid var(--modal-border-color);
    padding: 2rem;
    border-radius: var(--fe-fixed-radius);
    box-shadow: var(--fe-shadow-lg);
    max-width: 700px; /* Increased max-width */
    max-height: 90vh; /* Increased max-height */
    overflow-y: auto;
    position: relative;
    scrollbar-width: thin;
    scrollbar-color: var(--fe-scrollbar-thumb) var(--fe-scrollbar-track);
}
.help-modal-content::-webkit-scrollbar { width: 8px; }
.help-modal-content::-webkit-scrollbar-track { background: var(--fe-scrollbar-track); border-radius: 4px; }
.help-modal-content::-webkit-scrollbar-thumb { background-color: var(--fe-scrollbar-thumb); border-radius: 4px; }
.help-modal-content h2 {
    color: var(--link-color);
    margin-top: 0;
    margin-bottom: 1.5rem;
    text-align: center;
    border-bottom: 1px solid var(--hr-color);
    padding-bottom: 0.8rem;
}
.help-modal-content h3 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    opacity: 0.9;
     border-bottom: 1px solid var(--hr-color); /* Add underline to h3 */
     padding-bottom: 0.3rem;
     font-weight: 600;
}
.help-modal-content p, .help-modal-content ul, .help-modal-content dl {
    margin-bottom: 1rem;
    font-size: 0.95rem;
    line-height: 1.7;
}
.help-modal-content ul, .help-modal-content dl {
    padding-left: 1.5rem;
}
.help-modal-content dt {
     font-weight: bold;
     margin-top: 0.5rem;
}
.help-modal-content dd {
     margin-left: 1.5rem;
     margin-bottom: 0.5rem;
}
.help-modal-content code {
    background-color: var(--input-bg-color);
    padding: 0.2em 0.4em;
    border-radius: 3px;
    font-size: 0.9em;
    border: 1px solid var(--border-color);
    color: var(--highlight-color); /* Make code stand out */
}
#closeHelpBtn {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: none;
    border: none;
    color: var(--text-color);
    opacity: 0.7;
    font-size: 1.75rem;
    font-weight: bold;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    line-height: 1;
}
#closeHelpBtn:hover {
    opacity: 1;
    color: var(--button-danger-bg-color);
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* --- Upload Area (Small) --- */
.upload-container {
    background-color: var(--panel-bg-color);
    border-radius: calc(var(--fe-fixed-radius) * 1.5);
    box-shadow: var(--fe-shadow);
    padding: 1rem; /* Reduced padding */
    margin-bottom: 1.5rem;
    text-align: center;
    border: 2px dashed var(--fe-upload-border-dashed);
    transition: background-color 0.3s ease, border-color 0.3s ease;
    cursor: pointer;
}
.upload-container.drag-active { border-color: var(--fe-upload-border-active); background-color: var(--fe-content-light-bg); }
.upload-icon { font-size: 1.8rem; color: var(--link-color); margin-bottom: 0.4rem; display: inline-block; } /* Smaller icon/margin */
.upload-text { margin-bottom: 0.6rem; font-size: 0.95rem; color: var(--fe-text-secondary); } /* Smaller text/margin */
#uploadBtn { padding: 0.5rem 1rem; font-size: 0.9rem; } /* Smaller button */

/* --- Buttons --- */
.btn { display: inline-flex; align-items: center; justify-content: center; color: var(--button-primary-text-color); background-color: var(--button-primary-bg-color); padding: 0.6rem 1.2rem; border-radius: var(--fe-fixed-radius); border: 1px solid transparent; font-size: 0.95rem; font-weight: 600; cursor: pointer; transition: background-color 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease, opacity 0.2s, border-color 0.2s; box-shadow: var(--fe-shadow); text-decoration: none; white-space: nowrap; user-select: none; min-height: 38px; /* Ensure consistent height */ }
.btn:hover:not(:disabled) { opacity: 0.9; transform: translateY(-1px); box-shadow: var(--fe-shadow-lg); background-color: var(--button-primary-bg-color); }
.btn:active:not(:disabled) { transform: translateY(0px); box-shadow: var(--fe-shadow); }
.btn:disabled { background-color: var(--button-bg-color) !important; color: var(--text-color) !important; cursor: not-allowed !important; box-shadow: none !important; transform: none !important; border-color: var(--border-color) !important; opacity: var(--disabled-opacity); }
.btn-secondary { background-color: var(--button-secondary-bg-color); color: var(--button-secondary-text-color); border-color: var(--button-secondary-bg-color); }
.btn-secondary:hover:not(:disabled) { background-color: var(--button-secondary-bg-color); opacity: 0.9; }
.btn-danger { background-color: var(--button-danger-bg-color); color: var(--button-danger-text-color); border-color: var(--button-danger-bg-color); }
.btn-danger:hover:not(:disabled) { background-color: var(--button-danger-bg-color); opacity: 0.9; }
.file-input { display: none; }

/* NEW: Icon-only button style */
.btn-icon {
    padding: 0.6rem; /* Adjust for square-ish button */
    min-width: 38px; /* Match height for a circle/square */
    width: 38px;
    height: 38px;
    line-height: 1; /* Center icon better */
}
.btn-icon svg {
    margin-right: 0; /* No margin if it's the only content */
}

/* --- Progress Bar --- */
.progress-container { margin: 1rem 0 0 0; display: none; text-align: left; }
.progress-label { font-size: 0.9rem; color: var(--fe-text-secondary); margin-bottom: 0.5rem; display: flex; justify-content: space-between; }
.progress-bar { height: 8px; background-color: var(--fe-progress-bar-bg); border-radius: 4px; overflow: hidden; }
.progress { height: 100%; background-color: var(--link-color); width: 0%; transition: width 0.4s ease; border-radius: 4px; }
/* Completion/Loading Message Area */
#completionMessageContainer { min-height: 1.5em; /* Reserve space */ margin-top: 0.5rem; opacity: 0; /* Hidden by default */ transition: opacity 0.3s ease; }
.completion-message { display: flex; align-items: center; justify-content: center; gap: 0.5rem; font-weight: 600; font-size: 1rem; color: var(--status-success-color); }
.completion-message .checkmark { color: var(--status-success-color); font-size: 1.2rem; }

/* MODIFIED: Non-blocking loading text (spinner hidden) */
.loading-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    /* gap: 0.5rem; */ /* Gap removed as spinner is gone */
    color: var(--fe-text-secondary);
    font-style: italic;
}
.loading-indicator::before { /* Spinner is now hidden */
    content: '';
    display: none; /* This hides the spinner */
    width: 1em;
    height: 1em;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    border-top-color: var(--link-color);
    animation: spin 0.8s ease-in-out infinite;
    flex-shrink: 0;
}


/* --- Options Panel (Inside images-container) --- */
.options-panel {
    background-color: var(--panel-bg-color);
    border-radius: var(--fe-fixed-radius);
    box-shadow: var(--fe-shadow);
    padding: 1rem 1.5rem; /* Slightly reduced padding */
    margin-top: 1rem; /* Space below previews */
    margin-bottom: 1rem; /* Space above gallery */
    display: flex;
    align-items: center; /* Align items vertically */
    justify-content: space-around; /* Distribute space */
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
    gap: 1rem 1.5rem; /* Row gap, Column gap */
    border: 1px solid var(--border-color);
}
.option-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-height: 38px;
    flex-wrap: nowrap; /* Prevent wrapping inside a single group */
}
.option-label { color: var(--text-color); opacity: 0.9; font-weight: 500; font-size: 0.95rem; white-space: nowrap; margin-right: 0.25rem; /* Small space before controls */ }
#preprocessModeBtn, #frameModeBtn { min-width: 110px; justify-content: center; } /* Added frameModeBtn */

/* Toggle Option Button Styles */
.toggle-option {
    display: inline-flex; align-items: center; justify-content: center;
    background-color: var(--button-bg-color); /* Default non-active background */
    color: var(--text-color); /* Default text color */
    padding: 0.6rem 1rem; /* Adjust padding slightly if needed */
    border-radius: var(--fe-fixed-radius);
    border: 1px solid var(--border-color);
    font-size: 0.90rem; /* Slightly smaller than main buttons */
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease, box-shadow 0.2s ease, opacity 0.2s, border-color 0.2s;
    user-select: none;
    min-height: 38px; /* Match button height */
    box-shadow: none; /* No shadow by default */
    opacity: 0.9; /* Slightly faded when not active */
}
.toggle-option:hover:not(.active) {
    background-color: var(--button-hover-bg-color);
    border-color: var(--border-color);
    opacity: 1;
}
.toggle-option.active {
    background-color: var(--button-secondary-bg-color); /* Use secondary color for active */
    color: var(--button-secondary-text-color);
    border-color: var(--button-secondary-bg-color);
    font-weight: 600;
    opacity: 1;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.1); /* Subtle inset shadow */
}
.toggle-option:disabled {
    background-color: var(--button-bg-color) !important;
    color: var(--text-color) !important;
    cursor: not-allowed !important;
    box-shadow: none !important;
    transform: none !important;
    border-color: var(--border-color) !important;
    opacity: var(--disabled-opacity);
}
/* Manual Crop Button Specifics */
#defineCropBtn {
    padding: 0.6rem 1rem; /* Match toggle buttons */
    font-size: 0.9rem; /* Match toggle buttons */
}
#defineCropBtn svg { margin-right: 0.4em; width: 1em; height: 1em; vertical-align: text-bottom;}
/* MODIFIED: Manual Crop Status margin */
#manualCropStatus { font-size: 0.85rem; color: var(--fe-text-muted); margin-left: 0.25em; /* Reduced margin */ }

/* --- Images Container --- */
.images-container { display: none; margin-bottom: 1.5rem; background-color: var(--panel-bg-color); padding: 1rem; border-radius: var(--fe-fixed-radius); box-shadow: var(--fe-shadow); border: 1px solid var(--border-color); }
.split-view { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1rem; margin-bottom: 1rem; /* Added margin to separate from options */ }
.panel { background-color: var(--bg-color); border: 1px solid var(--border-color); padding: 0.75rem; border-radius: var(--fe-fixed-radius); display: flex; flex-direction: column; min-height: 250px; }
.panel-title { font-size: 0.9rem; color: var(--text-color); opacity: 0.8; margin-bottom: 0.25rem; /* Reduced bottom margin */ font-weight: 500; text-align: center; }
.panel-filename { /* Styles for filename display */
    font-size: 0.8rem;
    color: var(--fe-text-secondary);
    text-align: center;
    margin-bottom: 0.5rem;
    min-height: 1.2em; /* Prevent layout shift */
    word-break: break-all; /* Prevent long names overflowing */
    padding: 0 0.25rem;
}
#standardizedFilenameInput { /* Style the input */
    display: block;
    width: calc(100% - 10px); /* Adjust width */
    margin: 0 auto 0.5rem auto; /* Center and add bottom margin */
    font-size: 0.8rem;
    background-color: var(--input-bg-color);
    color: var(--input-text-color);
    border: 1px solid transparent; /* Hidden border initially */
    border-radius: 4px;
    padding: 0.2rem 0.4rem;
    text-align: center;
    box-shadow: none;
    transition: border-color 0.2s ease, background-color 0.2s ease;
}
#standardizedFilenameInput:not([readonly]) {
    border-color: var(--input-border-color); /* Show border when editable */
    cursor: text;
}
#standardizedFilenameInput:focus {
    border-color: var(--link-color);
    outline: none;
    box-shadow: 0 0 0 1px var(--link-color);
}
.image-preview { flex-grow: 1; display: flex; align-items: center; justify-content: center; background-color: var(--fe-preview-bg); border-radius: calc(var(--fe-fixed-radius) / 2); overflow: hidden; min-height: 150px; border: 1px solid var(--border-color); }
.preview-image { max-width: 100%; max-height: 100%; object-fit: contain; display: block; }

/* --- Gallery --- */
.gallery-wrapper { position: relative; margin-top: 1rem; padding: 0.5rem 0; } /* Added margin-top */
.gallery { display: flex; gap: 0.75rem; overflow-x: auto; padding: 0.5rem 45px; scroll-behavior: smooth; scrollbar-width: thin; scrollbar-color: var(--fe-scrollbar-thumb) var(--fe-scrollbar-track); border-radius: var(--fe-fixed-radius); background: var(--bg-color); min-height: 75px; border: 1px solid var(--border-color); }
.gallery::-webkit-scrollbar { height: 6px; }
.gallery::-webkit-scrollbar-track { background: var(--fe-scrollbar-track); border-radius: 3px; }
.gallery::-webkit-scrollbar-thumb { background-color: var(--fe-scrollbar-thumb); border-radius: 3px; }
.gallery::-webkit-scrollbar-thumb:hover { background-color: var(--link-color); }
.thumbnail { width: 100px; height: 65px; border-radius: calc(var(--fe-fixed-radius) / 2); overflow: hidden; cursor: pointer; border: 3px solid transparent; transition: border-color 0.2s ease, transform 0.1s ease; background-color: var(--fe-thumbnail-bg); flex-shrink: 0; position: relative; }
.thumbnail:hover { transform: scale(1.05); border-color: var(--border-color); }
.thumbnail.active { border-color: var(--highlight-color); transform: scale(1.05); }
.thumbnail img { width: 100%; height: 100%; object-fit: cover; display: block; }
.thumbnail.state-processing { opacity: 0.6; animation: pulse 1.5s infinite ease-in-out; }
.thumbnail.state-error { border-color: var(--button-danger-bg-color) !important; opacity: 0.7; }
@keyframes pulse { 0%, 100% { opacity: 0.6; } 50% { opacity: 1; } }

/* --- Gallery Navigation Buttons (SVG Arrows) --- */
.nav-btn { position: absolute; top: 50%; transform: translateY(-50%); background: var(--button-secondary-bg-color); border: none; color: var(--button-secondary-text-color); width: 32px; height: 32px; border-radius: 50%; cursor: pointer; box-shadow: var(--fe-shadow-lg); z-index: 2; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; opacity: 0.7; transition: opacity 0.2s ease, background-color 0.2s ease, transform 0.1s ease; }
.nav-btn:hover { background-color: var(--button-hover-bg-color); opacity: 1; transform: translateY(-50%) scale(1.1); }
.nav-btn:active { transform: translateY(-50%) scale(1); }
.nav-btn svg { width: 1em; height: 1em; fill: currentColor; }
.left-btn { left: 8px; }
.right-btn { right: 8px; }

/* --- Control Panel --- */
.control-panel {
    background-color: var(--panel-bg-color);
    border-radius: var(--fe-fixed-radius);
    box-shadow: var(--fe-shadow);
    padding: 1rem 1.5rem;
    display: grid; /* Use grid for better control */
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); /* Responsive columns */
    gap: 1rem 1.5rem; /* Row and column gap */
    margin-top: 1rem;
    border: 1px solid var(--border-color);
}
.action-group {
    display: flex;
    flex-direction: column; /* Stack label and buttons vertically */
    gap: 0.75rem; /* Space between label and buttons, and between buttons */
    align-items: stretch; /* Make buttons take full width */
}
.action-group-label {
    font-size: 0.9rem;
    color: var(--fe-text-muted);
    font-weight: 500;
    text-align: center; /* Center label text */
    margin-bottom: 0.25rem; /* Space below label */
    display: block; /* Ensure it's on its own line */
}
.action-group .btn-row { /* Group buttons horizontally within a row if needed */
     display: flex;
     gap: 0.75rem;
     justify-content: center;
}
.action-group .btn-row .btn {
     flex-grow: 1; /* Allow buttons in a row to share space */
}


/* --- Loading Overlay (Styles Removed) --- */
/* .loading-overlay { ... } */

.spinner { /* Keep spinner styles if needed */
    width: 40px; height: 40px; border: 4px solid var(--border-color);
    border-radius: 50%; border-top-color: var(--link-color);
    animation: spin 1s ease-in-out infinite;
}
.loading-text { /* Keep loading text styles if needed */
     font-weight: 500;
     /* Example: Position in a corner if needed */
     /* position: fixed; bottom: 1rem; right: 1rem; background: var(--panel-bg-color); padding: 0.5rem; border-radius: 4px; box-shadow: var(--fe-shadow); z-index: 990; */
}
@keyframes spin { to { transform: rotate(360deg); } }

/* --- Crop Modal --- */
.crop-modal { position: fixed; top: 0; left: 0; right: 0; bottom: 0; background-color: var(--modal-overlay-bg); backdrop-filter: blur(5px); z-index: 1100; display: none; align-items: center; justify-content: center; padding: 1rem; }
.crop-modal-content { background-color: var(--modal-bg-color); color: var(--modal-text-color); border: 1px solid var(--modal-border-color); padding: 1.5rem; border-radius: var(--fe-fixed-radius); box-shadow: var(--fe-shadow-lg); max-width: 90vw; max-height: 90vh; display: flex; flex-direction: column; }
.crop-image-container { width: 100%; max-height: calc(80vh - 100px); overflow: hidden; margin-bottom: 1rem; background-color: var(--input-bg-color); border: 1px solid var(--border-color); }
.crop-image-container img { display: block; max-width: 100%; max-height: 100%; }

/* MODIFIED: Crop Modal Actions to space-between */
.crop-modal-actions {
    display: flex;
    justify-content: space-between; /* Space out ratio controls and main actions */
    align-items: center; /* Align items vertically */
    gap: 1rem; /* Gap between the two groups */
    margin-top: 1rem;
    border-top: 1px solid var(--hr-color);
    padding-top: 1rem;
    flex-wrap: wrap; /* Allow wrapping on small screens */
}

/* NEW: Crop Modal Ratio Controls */
.crop-ratio-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.crop-ratio-label {
    font-size: 0.9rem;
    color: var(--text-color);
    margin-right: 0.25rem;
}
.btn-sm { /* For smaller buttons like ratio toggles */
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
    min-height: 32px; /* Slightly smaller height */
}
.btn-toggle-crop {
    background-color: var(--button-bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    opacity: 0.8;
}
.btn-toggle-crop:hover:not(.active) {
    background-color: var(--button-hover-bg-color);
    opacity: 1;
}
.btn-toggle-crop.active {
    background-color: var(--button-secondary-bg-color);
    color: var(--button-secondary-text-color);
    border-color: var(--button-secondary-bg-color);
    font-weight: 600;
    opacity: 1;
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.1);
}
.crop-main-actions {
    display: flex;
    gap: 0.75rem;
}


/* Cropper.js specific styles */
.cropper-view-box { outline: 1px solid var(--fe-cropper-outline); opacity: 0.8; }
.cropper-face { background-color: var(--fe-cropper-face-bg); }
.cropper-dashed { border-color: var(--border-color) !important; opacity: 0.5 !important; }
.cropper-point { background-color: var(--fe-cropper-point-bg) !important; opacity: 0.8 !important; }
.cropper-line { background-color: var(--fe-cropper-line-bg) !important; opacity: 0.8 !important;}

/* --- Responsive Adjustments --- */
@media (max-width: 900px) { /* Adjust breakpoint for options wrapping */
   .options-panel { /* Allow options to wrap more freely */ }
   header { padding-top: 5rem; /* Adjust space for search when header elements might wrap */ }
   .search-panel { width: 250px; } /* Slightly narrower search */
}

 @media (max-width: 768px) {
     #helpBtn { top: 0.75rem; right: 0.75rem; width: 36px; height: 36px; font-size: 1.3rem; }
     .container { padding: 0.75rem; } /* Reduce container padding further */
     header { padding-top: 0; margin-bottom: 1rem; } /* Reset header padding, reduce margin */
     .search-panel {
         position: static; /* Revert to static */
         width: 90%;
         margin: 0.75rem auto 1rem auto; /* Adjust margin */
         left: auto; /* Reset left positioning */
     }
    .search-results { /* Adjust results position relative to static input */
        top: 100%; left: 0; right: 0;
        max-height: 250px;
        width: 100%; /* Take full width of search panel */
        position: absolute; /* Keep absolute relative to panel */
     }
     .options-panel { flex-direction: column; align-items: stretch; gap: 1rem; }
     .option-group { justify-content: space-between; }
     .option-label { margin-right: auto; }
     .control-panel { grid-template-columns: 1fr; /* Stack groups fully */ }
     .action-group .btn-row { flex-direction: column; /* Stack buttons in rows vertically */ }
     .crop-modal-content, .help-modal-content { padding: 1rem; max-width: 95vw; max-height: 90vh; }
     /* .crop-modal-actions { justify-content: center; } MODIFIED BELOW */
     #closeHelpBtn { font-size: 1.5rem; top: 0.5rem; right: 0.5rem; }
 }
 @media (max-width: 480px) {
     h1 { font-size: 1.8rem; }
     .subheading { font-size: 0.9rem; }
     .search-panel { width: 95%; left: auto; margin: 0.5rem auto 1rem auto; } /* Adjust static centering */
     .upload-container { padding: 0.8rem; } /* Further reduce */
     .upload-icon { font-size: 1.6rem;}
     .upload-text { font-size: 0.9rem; }
     #uploadBtn { padding: 0.4rem 0.8rem; font-size: 0.85rem; }
     .options-panel { padding: 1rem; gap: 1rem; } /* Adjust padding */
     .option-group { flex-direction: column; align-items: stretch; gap: 0.5rem;} /* Stack group items */
     .option-label { margin-bottom: 0.25rem; margin-right: 0; text-align: center; }
     .toggle-option, #defineCropBtn { flex-grow: 1; text-align: center; width: 100%; } /* Allow buttons to grow */
     #preprocessModeBtn, #frameModeBtn { width: 100%; } /* Make global buttons full width */
     #manualCropStatus { margin-left: 0; margin-top: 0.25rem; display: block; text-align: center;} /* Center status */

     /* MODIFIED: Responsive Crop Modal Actions */
     .crop-modal-actions { flex-direction: column; align-items: stretch; }
     .crop-ratio-controls { justify-content: center; margin-bottom: 0.5rem; }
     .crop-main-actions { flex-direction: column; }
     .crop-main-actions .btn { width: 100%; justify-content: center; }
 }