.dropzone-container {
    border: 2px dashed #cbd5e1;
    border-radius: 12px;
    padding: 40px 20px;
    text-align: center;
    background-color: #f8fafc;
    cursor: pointer;
    transition: all 0.2s ease;
}
.dropzone-container:hover, .dropzone-container.dragover {
    border-color: #3b82f6;
    background-color: #eff6ff;
}
.image-preview-container {
    background-color: #f1f5f9;
    border-radius: 12px;
    padding: 16px;
    text-align: center;
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid #e2e8f0;
}
.image-preview-container img {
    max-height: 350px;
    max-width: 100%;
    border-radius: 8px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}
.resizer-options {
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 20px;
}

/* Tabs & Scale Slider overrides */
.resize-tab-btn {
    border: none !important;
    border-radius: 6px !important;
    transition: all 0.2s ease !important;
    font-size: 13px !important;
    padding: 6px 12px !important;
}
.resize-tab-btn.active {
    background-color: #ffffff !important;
    color: #2563eb !important;
}
.resize-tab-btn:not(.active) {
    background-color: transparent !important;
    color: #64748b !important;
}
.resize-tab-btn:hover {
    color: #1e293b !important;
    background-color: rgba(0,0,0,0.05) !important;
}
.resize-tab-btn.active:hover {
    color: #2563eb !important;
    background-color: #ffffff !important;
}

#percent-range.form-range {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px !important;
    background: #cbd5e1 !important; /* visible gray track line */
    border-radius: 9999px;
    outline: none;
    margin: 15px 0;
    padding: 0;
}
#percent-range.form-range::-webkit-slider-runnable-track {
    background: #cbd5e1 !important;
    height: 6px;
    border-radius: 9999px;
    border: none;
}
#percent-range.form-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #3b82f6 !important; /* blue thumb handler */
    cursor: pointer;
    margin-top: -6px; /* center thumb on webkit track */
    transition: background 0.15s ease-in-out;
    border: none;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
#percent-range.form-range::-webkit-slider-thumb:hover {
    background: #2563eb !important;
}
#percent-range.form-range::-moz-range-track {
    width: 100%;
    height: 6px;
    background: #cbd5e1 !important;
    border-radius: 9999px;
    border: none;
}
#percent-range.form-range::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border: none;
    border-radius: 50%;
    background: #3b82f6 !important;
    cursor: pointer;
    transition: background 0.15s ease-in-out;
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
#percent-range.form-range::-moz-range-thumb:hover {
    background: #2563eb !important;
}