/* --- Global Styles --- */
#aist-container {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 12px;
    padding: 20px 30px 30px;
    max-width: 900px;
    margin: 40px auto;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    color: #333;
}

/* --- CORRECTED Tabs Navigation --- */
.aist-tabs {
    display: flex;
    border-bottom: 1px solid #ccc;
    margin-bottom: 25px;
}
.aist-tab-link {
    padding: 12px 20px;
    cursor: pointer;
    background-color: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    font-size: 16px;
    font-weight: 600;
    color: #555;
    margin-bottom: -1px;
    transition: all 0.2s ease-in-out;
}
.aist-tab-link:hover {
    background-color: #f5f5f5;
    color: #005AEE;
}
.aist-tab-link.active {
    border-bottom-color: #005AEE;
    color: #005AEE;
}

/* CORRECTED Tab Content Visibility */
.aist-tab-content {
    display: none; /* Hide by default */
}
.aist-tab-content.active {
    display: block; /* Show only the active tab */
}


/* --- General Form & UI Elements --- */
.aist-tool-header { text-align: left; margin-bottom: 25px; }
.aist-tool-header h3 { font-size: 24px; margin: 0 0 5px 0; }
.aist-tool-header p, .aist-subtitle { font-size: 16px; color: #666; margin: 0; }
.aist-form-group { margin-bottom: 20px; }
.aist-form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
label { display: block; font-weight: 600; margin-bottom: 8px; }
input[type="text"] {
    width: 100%;
    padding: 12px;
    font-size: 15px;
    border: 1px solid #ccc;
    border-radius: 6px;
    box-sizing: border-box;
    transition: all 0.2s ease;
}
input[type="text"]:focus {
    border-color: #005AEE;
    box-shadow: 0 0 0 3px rgba(0, 90, 238, 0.15);
    outline: none;
}
.aist-button {
    width: 100%;
    padding: 15px;
    font-size: 18px;
    font-weight: bold;
    background-color: #005AEE;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
}
.aist-button:hover { background-color: #004ac0; }
.aist-button-secondary {
    padding: 10px 20px;
    font-size: 15px;
    font-weight: 600;
    background-color: #e9ecef;
    color: #333;
    border: 1px solid #ced4da;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s;
}
.aist-button-secondary:hover { background-color: #dee2e6; }

/* --- Quill Rich Text Editor --- */
#aist-editor-container { height: 350px; margin-bottom: 15px; }
.ql-toolbar { border-top-left-radius: 6px; border-top-right-radius: 6px; }
.ql-container { border-bottom-left-radius: 6px; border-bottom-right-radius: 6px; }

/* --- Results Sections --- */
#aist-grader-results-wrapper, #aist-audit-results-wrapper { margin-top: 30px; border-top: 1px solid #e0e0e0; padding-top: 25px; }
.aist-results-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.aist-results-header h3 { margin: 0; font-size: 22px; }

/* --- Score Cards & Checklist --- */
.aist-score-card { background-color: #f9f9f9; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; margin-bottom: 20px; }
.aist-score-card h3 { font-size: 20px; margin-top: 0; margin-bottom: 15px; border-bottom: 1px solid #ddd; padding-bottom: 10px; }
.aist-metric { display: flex; justify-content: space-between; align-items: center; font-size: 16px; padding: 12px 0; border-bottom: 1px solid #eee; }
.aist-score-card .aist-metric:last-child { border-bottom: none; }
.aist-metric-label { font-weight: 500; color: #444; }
.aist-metric-value { font-weight: 600; color: #222; max-width: 60%; word-wrap: break-word; text-align: right; }
.aist-metric-value.good { color: #2e7d32; }
.aist-metric-value.bad { color: #d32f2f; }
.aist-metric-value.ok { color: #f57c00; }
#aist-overall-score-card { text-align: center; }
#aist-overall-score-value { font-size: 60px; font-weight: 700; line-height: 1; }
.aist-checklist { list-style-type: none; padding: 0; margin: 0; }
.aist-checklist li { padding: 8px 0 8px 30px; position: relative; font-size: 16px; }
.aist-checklist li::before { content: '❌'; position: absolute; left: 0; top: 8px; }
.aist-checklist li.pass { color: #2e7d32; }
.aist-checklist li.pass::before { content: '✅'; }
.pdf-export-mode { padding: 20px !important; border: none !important; box-shadow: none !important; }

/* --- SERP Preview Tool --- */
.aist-progress-bar-container { width: 100%; background-color: #e9ecef; border-radius: 4px; height: 8px; margin-top: 5px; }
.aist-progress-bar { height: 100%; border-radius: 4px; transition: width 0.3s ease, background-color 0.3s ease; }
small { font-size: 12px; color: #666; }
#aist-serp-simulation-wrapper { margin-top: 25px; border: 1px solid #e0e0e0; border-radius: 8px; padding: 20px; }
.aist-serp-result { font-family: Arial, sans-serif; margin-bottom: 25px; }
.aist-serp-result:last-child { margin-bottom: 0; }
.serp-url { font-size: 14px; color: #202124; }
.serp-title { font-size: 20px; color: #1a0dab; text-decoration: none; font-weight: 400; }
.serp-title:hover { text-decoration: underline; }
.serp-description { font-size: 14px; color: #4d5156; line-height: 1.5; }
.aist-serp-result.yours { background-color: #e8f0fe; padding: 15px; border-radius: 8px; border: 1px solid #d2e3fc; }

/* --- Technical Audit Tool --- */
.aist-loader { text-align: center; padding: 40px; font-size: 16px; font-weight: 500; color: #555; }
#aist-audit-results-wrapper .aist-accordion-item { margin-bottom: 10px; border: 1px solid #e0e0e0; border-radius: 8px; overflow: hidden; }
.aist-accordion-header { background-color: #f9f9f9; padding: 15px 20px; cursor: pointer; font-weight: 600; font-size: 18px; display: flex; justify-content: space-between; align-items: center; }
.aist-accordion-header::after { content: '▼'; font-size: 12px; transition: transform 0.2s; }
.aist-accordion-header.active::after { transform: rotate(180deg); }
.aist-accordion-content { padding: 20px; display: none; border-top: 1px solid #e0e0e0; }
.aist-audit-heading-structure { list-style-type: none; padding-left: 0; }
.aist-audit-heading-structure .h2 { padding-left: 20px; }
.aist-audit-heading-structure .h3 { padding-left: 40px; }
.aist-audit-heading-structure .h4 { padding-left: 60px; }
.aist-audit-heading-structure li { padding: 5px 0; }
.social-preview { border: 1px solid #ccc; border-radius: 8px; margin-top: 15px; overflow: hidden; }
.social-preview-image { width: 100%; height: 200px; background-color: #f0f0f0; background-size: cover; background-position: center; display: flex; align-items: center; justify-content: center; color: #999; }
.social-preview-content { padding: 15px; }
.social-preview-title { font-weight: bold; font-size: 16px; margin-bottom: 5px; }
.social-preview-desc { font-size: 14px; color: #666; }