/* General Container */
#ptbcb-container {
    width: 100%;
    margin: 20px auto;
    padding: 20px;
    border: 1px solid #ddd;
    border-radius: 12px;
    background-color: #f9f9f9;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    box-sizing: border-box;
}

/* Header */
#ptbcb-header {
    margin-bottom: 25px;
}
#ptbcb-logo {
    height: auto;
    margin-bottom: 15px;
    border-radius: 8px;
}
#ptbcb-main-title {
    font-weight: 600;
    color: #333;
    margin: 0;
}
#ptbcb-sub-title {
    color: #666;
    margin-top: 5px;
}

/* Upload Area */
#ptbcb-upload-area {
    border: 2px dashed #0073aa;
    border-radius: 8px;
    padding: 25px;
    text-align: center;
    background-color: #fff;
    cursor: pointer;
    transition: background-color 0.3s, border-color 0.3s;
}
#ptbcb-upload-area:hover {
    background-color: #f0f8ff;
    border-color: #005a87;
}
#ptbcb-image-input {
    display: none;
}
#ptbcb-image-preview-container {
    margin-top: 20px;
    text-align: center;
    position: relative;
}
#ptbcb-image-preview {
    max-width: 100%;
    max-height: 300px;
    border-radius: 8px;
    border: 1px solid #ccc;
}
#ptbcb-delete-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    border: none;
    border-radius: 50%;
    width: 30px;
    height: 30px;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

/* Type Selector */
.ptbcb-type-selector {
    margin-bottom: 20px;
    text-align: center;
}
.ptbcb-type-selector label {
    display: inline-block;
    margin: 5px;
    padding: 8px 15px;
    border: 1px solid #ccc;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
}
.ptbcb-type-selector input[type="radio"] {
    display: none;
}
.ptbcb-type-selector input[type="radio"]:checked+label {
    background-color: #0073aa;
    color: white;
    border-color: #0073aa;
}

/* Analyze Button */
#ptbcb-analyze-btn {
    display: block;
    width: 100%;
    max-width: 250px;
    margin: 20px auto 0;
    padding: 12px;
    font-size: 18px;
    font-weight: 500;
    background-color: #0085ba;
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s;
    position: relative;
}
#ptbcb-analyze-btn:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}
#ptbcb-analyze-btn .ptbcb-spinner {
    display: none;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top: 3px solid #fff;
    width: 20px;
    height: 20px;
    animation: ptbcb-spin 1s linear infinite;
    position: absolute;
    left: 20px;
    top: 50%;
    margin-top: -10px;
}
@keyframes ptbcb-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Result Area */
#ptbcb-result-container {
    margin-top: 30px;
    padding: 20px;
    background-color: #fff;
    border-radius: 8px;
    border: 1px solid #e5e5e5;
    text-align: left;
}
.ptbcb-result-section {
    margin-bottom: 25px;
}
.ptbcb-result-section h3 {
    font-size: 18px;
    font-weight: 600;
    color: #005a87;
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid #eef;
    display: flex;
    align-items: center;
}
.ptbcb-result-section h3 span {
    margin-right: 8px;
}
.ptbcb-result-section p {
    margin: 0 0 10px;
    line-height: 1.6;
}
#ptbcb-container .ptbcb-result-section ul {
    margin: 0;
    padding-left: 20px;
    list-style-type: '• ';
}
.ptbcb-result-section li {
    margin-bottom: 8px;
}

/* QR Code & Footer */
#ptbcb-qr-container {
    margin-top: 25px;
    text-align: center;
}
#ptbcb-qr-image {
    max-width: 150px;
    border: 1px solid #ddd;
    padding: 5px;
    border-radius: 8px;
}
#ptbcb-footer {
    margin-top: 20px;
    color: #888;
}

/* Helper Classes */
.ptbcb-hidden {
    display: none;
}
.ptbcb-info-text {
    color: #555;
    font-size: 14px;
}