/* ============================================= */
/* THEME VARIABLES (নতুন একক থিম)                */
/* ============================================= */

#doc-processor-app {
    --bg-main: #f0f2f5;
    --bg-content: #ffffff;
    --text-primary: #212529;
    --border-color: #dee2e6;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --bg-input: #ffffff; 
    --bg-darker: #e9ecef; 
    --border-darker: #ced4da; 
    --text-secondary: #6c757d; 

    /* নতুন থিম কালার */
    --primary-color: #344555;
    --primary-hover: #232e3a; /* #344555 এর গাঢ় শেড */
    
    /* পূর্ববর্তী মডালের জন্য প্রয়োজনীয় ভেরিয়েবল (থিম সুইচার থেকে) */
    --switch-bg: #ccc; 
}

/* ============================================= */
/* Print Preview Modal Styles (আগের কোড)        */
/* ============================================= */
#print-preview-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.6);
}

.modal-content {
    position: relative;
    background-color: var(--bg-content);
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.3);
    width: 90%;
    max-width: 800px;
    z-index: 10000;
}

.modal-content h3 {
    margin-top: 0;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
    margin-bottom: 20px;
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    color: #888;
    cursor: pointer;
}
.close-modal:hover { color: #333; }

.modal-body {
    display: flex;
    gap: 25px;
}

.a4-preview-container {
    flex-grow: 1;
    flex-shrink: 0; 
    background-color: #ffffff;
    border: 1px solid #ccc;
    position: relative;
    /* A4 Aspect Ratio (210 / 297) */
    width: 354px;
    height: 500px;
}

/* Fabric.js দ্বারা তৈরি wrapper div এবং canvas এর জন্য স্টাইল */
.a4-preview-container .canvas-container {
    width: 100% !important;
    height: 100% !important;
}

#print-preview-canvas {
    width: 100%;
    height: 100%;
    border: 1px dashed #ddd; /* ক্যানভাসের সীমানা দেখার জন্য */
}

#image-to-print-preview {
    position: absolute;
    transform-origin: top left;
    border: 1px dashed #999;
}

.print-controls {
    flex-basis: 250px;
    background-color: var(--bg-main);
    padding: 15px;
    border-radius: 8px;
}

.print-controls .control-group {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.print-controls .control-group label {
    font-weight: 600;
}
.print-controls .control-group input[type="number"] {
    width: 80px;
    padding: 5px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}
.print-controls hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 15px 0;
}

.modal-footer {
    text-align: right;
    margin-top: 25px;
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}
/* ============================================= */
/* মডাল CSS প্রতিস্থাপন শেষ                        */
/* ============================================= */


/* ============================================= */
/* GENERAL STYLES (USING THEME VARIABLES)        */
/* ============================================= */

#doc-processor-app {
    font-family: 'Anek Bangla', Arial, sans-serif;
    max-width: 1480px;
    margin: 30px auto;
    padding: 20px;
    background-color: var(--bg-main);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 8px 25px var(--shadow-color);
    transition: background-color 0.3s, color 0.3s;
}

h3, h4 {
    color: var(--text-primary);
    text-align: center;
    margin-bottom: 20px;
}
.controls-panel h4 { margin-top:0; border-bottom: 1px solid var(--border-darker); padding-bottom: 10px; }

.app-body { display: flex; gap: 20px; }
.main-content { flex-grow: 1; display: flex; flex-direction: column; gap: 20px; }

.settings-panel {
    flex: 0 0 280px;
    padding: 20px;
    background-color: var(--bg-content);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 25px;
}

/* Input Groups */
.input-group { display: flex; flex-direction: column; align-items: center; gap: 15px; }
.label-group { 
    display: flex; 
    align-items: center; 
    gap: 10px; 
    width: 100%;
    justify-content: space-between;
}
.input-group label { font-weight: 600; color: var(--text-primary); }

/* ============================================= */
/* ফাইল ইনপুট এরিয়ার স্টাইল (কালার আপডেট)         */
/* ============================================= */

input[type="file"] {
    border: 2px dashed green;
    background-color: var(--bg-darker);
    padding: 25px 15px;
    text-align: center;
    border-radius: 8px;
    color: var(--text-secondary);
    width: 100%;
    max-width: 500px;
}

input[type="file"]::file-selector-button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 8px 15px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}
input[type="file"]::file-selector-button:hover {
    background-color: var(--primary-hover);
}


/* Image Preview */
.image-preview-container {
    width: 100%;
    height: 480px;
    border: 1px solid var(--border-darker);
    background-color: var(--bg-main);
    border-radius: 8px;
    position: relative;
    overflow: hidden;
}
.image-preview-canvas { max-width: 100%; max-height: 100%; object-fit: contain; }

/* Controls & Settings Panel */
.settings-panel .controls-panel {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 20px;
    background-color: var(--bg-darker);
    border-radius: 8px;
    border: 1px solid var(--border-darker);
}
.settings-panel .control-group { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; width: 100%; }
.settings-panel .control-group label { font-weight: 600; }
.settings-panel .controls-panel input[type="range"] { width: 100%; }

/* Buttons (কালার আপডেট) */
.button-group-vertical { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 10px; }
.generation-section { display: flex; flex-direction: column; gap: 15px; margin-top: 10px; }
.primary-button, .secondary-button, .success-button { padding: 12px 25px; border: none; border-radius: 6px; cursor: pointer; font-size: 1.1em; font-weight: 600; transition: all 0.3s ease; width: 100%; }

.primary-button { background-color: var(--primary-color); color: white; }
.primary-button:hover { background-color: var(--primary-hover); }

.secondary-button { background-color: #6c757d; color: white; }
.secondary-button:hover { background-color: #5a6268; }

.success-button { background-color: var(--primary-color); color: white; }
.success-button:hover { background-color: var(--primary-hover); }

.reset-button { background-color: #dc3545; color: white; }
.reset-button:hover { background-color: #c82333; }

.manual-crop-button { background-color: var(--primary-color); color: white; }
.manual-crop-button:hover { background-color: var(--primary-hover); }

/* Switch Toggle (CSS মুছে ফেলা হয়েছে) */
.control-group-inline { display: flex; align-items: center; gap: 10px; justify-content: space-between; }
/* .control-group-inline.theme-switcher { ... } (এই ক্লাসটি মুছে ফেলা হয়েছে) */
.switch { position: relative; display: inline-block; width: 60px; height: 34px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #ccc; transition: .4s; }
.slider:before { position: absolute; content: ""; height: 26px; width: 26px; left: 4px; bottom: 4px; background-color: white; transition: .4s; }
input:checked + .slider { background-color: green; }
input:checked + .slider:before { transform: translateX(26px); }
.slider.round { border-radius: 34px; }
.slider.round:before { border-radius: 50%; }

/* Rotate Button */
.rotate-button {
    background-color: #6c757d;
    color: white;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    font-size: 22px;
    line-height: 32px;
    text-align: center;
    cursor: pointer;
    transition: background-color 0.3s, transform 0.3s ease;
    padding: 0;
    font-weight: bold;
}
.rotate-button:hover {
    background-color: #5a6268;
    transform: rotate(90deg);
}

/* Responsive Adjustments */
@media (max-width: 992px) { .app-body { flex-direction: column; } .settings-panel { flex-basis: auto; width: 100%; } }
@media (max-width: 768px) { .tab-button { padding: 10px 15px; font-size: 1em; } .button-group-vertical button { flex-grow: 1; } }
@media (max-width: 768px) {
    .modal-body {
        flex-direction: column;
        align-items: center;
    }
    .print-controls {
        flex-basis: auto;
        width: 100%;
    }
    .a4-preview-container {
        width: 300px; /* রেসপন্সিভে ফিক্সড সাইজ */
        height: 424px; /* রেসপন্সিভে ফিক্সড সাইজ */
        flex-shrink: 0;
    }
}


/* === NEW STYLES FOR CLEANING BUTTONS (কালার আপডেট) === */
.controls-panel .clean-button {
    background-color: var(--primary-color); /* থিম কালার */
    color: white;
    border: 2px solid transparent;
    transition: background-color 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.controls-panel .clean-button:hover:not(.active) {
    background-color: var(--primary-hover); /* থিম কালার হোভার */
}

.controls-panel .clean-button.active {
    background-color: #28a745; /* Green to show it's active */
    border-color: #ffffff;
    box-shadow: 0 0 8px rgba(40, 167, 69, 0.7);
}
/* ডার্ক মোড রুলটি অপ্রয়োজনীয় তাই মুছে ফেলা হয়েছে */

/* স্ট্যাটাস মেসেজ CSS মুছে ফেলা হয়েছে */