/**
 * تنسيقات الواجهة العامة لمكتبة المعرفة الذكية
 */

/* الألوان والمتغيرات */
:root {
    --skb-primary: #0073aa;
    --skb-primary-dark: #005177;
    --skb-secondary: #f0f6fc;
    --skb-success: #28a745;
    --skb-warning: #ffc107;
    --skb-danger: #dc3545;
    --skb-info: #17a2b8;
    --skb-light: #f8f9fa;
    --skb-dark: #343a40;
    --skb-border: #e1e5e9;
    --skb-shadow: 0 2px 12px rgba(0,0,0,0.1);
    --skb-shadow-hover: 0 4px 20px rgba(0,0,0,0.15);
    --skb-radius: 8px;
    --skb-radius-lg: 12px;
    --skb-transition: all 0.3s ease;
    --skb-font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

/* إعادة تعيين أساسية */
.skb-search-container * {
    box-sizing: border-box;
}

/* الحاوي الرئيسي */
.skb-search-container {
    max-width: 900px;
    margin: 20px auto;
    font-family: var(--skb-font-family);
    line-height: 1.6;
    color: var(--skb-dark);
    direction: rtl;
    text-align: right;
}

/* نموذج البحث */
.skb-search-form {
    background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%);
    border-radius: var(--skb-radius-lg);
    padding: 32px;
    box-shadow: var(--skb-shadow);
    margin-bottom: 24px;
    border: 1px solid var(--skb-border);
    position: relative;
    overflow: hidden;
}

.skb-search-form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--skb-primary), var(--skb-info), var(--skb-success));
}

/* رأس البحث */
.skb-search-header {
    text-align: center;
    margin-bottom: 24px;
}

.skb-search-title {
    font-size: 1.8em;
    font-weight: 700;
    color: var(--skb-dark);
    margin: 0 0 8px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.skb-search-icon {
    font-size: 1.2em;
    background: linear-gradient(135deg, var(--skb-primary), var(--skb-info));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.skb-search-description {
    color: #6c757d;
    margin: 0;
    font-size: 1.1em;
}

/* مجموعة الإدخال */
.skb-search-input-group {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
    position: relative;
}

.skb-search-input {
    flex: 1;
    padding: 16px 20px;
    border: 2px solid var(--skb-border);
    border-radius: var(--skb-radius);
    font-size: 16px;
    font-family: inherit;
    transition: var(--skb-transition);
    background: #fff;
    box-shadow: inset 0 1px 3px rgba(0,0,0,0.1);
}

.skb-search-input:focus {
    outline: none;
    border-color: var(--skb-primary);
    box-shadow: 0 0 0 3px rgba(0,115,170,0.1), inset 0 1px 3px rgba(0,0,0,0.1);
    transform: translateY(-1px);
}

.skb-search-input::placeholder {
    color: #adb5bd;
    font-style: italic;
}

/* زر البحث */
.skb-search-button {
    padding: 16px 32px;
    background: linear-gradient(135deg, var(--skb-primary), var(--skb-primary-dark));
    color: white;
    border: none;
    border-radius: var(--skb-radius);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--skb-transition);
    position: relative;
    overflow: hidden;
    min-width: 120px;
    box-shadow: 0 2px 8px rgba(0,115,170,0.3);
}

.skb-search-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(0,115,170,0.4);
}

.skb-search-button:active {
    transform: translateY(0);
}

.skb-search-button:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.skb-button-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

/* الفلاتر */
.skb-search-filters {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    padding: 20px;
    background: var(--skb-secondary);
    border-radius: var(--skb-radius);
    border: 1px solid #e3f2fd;
}

.skb-filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.skb-filter-label {
    font-weight: 600;
    color: var(--skb-dark);
    font-size: 14px;
}

.skb-filter-select {
    padding: 10px 12px;
    border: 1px solid var(--skb-border);
    border-radius: var(--skb-radius);
    background: #fff;
    font-size: 14px;
    transition: var(--skb-transition);
}

.skb-filter-select:focus {
    outline: none;
    border-color: var(--skb-primary);
    box-shadow: 0 0 0 2px rgba(0,115,170,0.1);
}

.skb-filter-options {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.skb-checkbox-label {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    font-size: 14px;
    user-select: none;
}

.skb-checkbox {
    width: 16px;
    height: 16px;
    accent-color: var(--skb-primary);
}

/* منطقة النتائج */
.skb-search-results {
    animation: fadeInUp 0.5s ease;
}

.skb-results-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 16px 20px;
    background: var(--skb-light);
    border-radius: var(--skb-radius);
    border: 1px solid var(--skb-border);
}

.skb-results-info {
    font-weight: 600;
    color: var(--skb-dark);
}

.skb-results-count {
    color: var(--skb-primary);
    font-size: 1.1em;
}

.skb-results-query {
    background: var(--skb-primary);
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.9em;
    margin-right: 8px;
}

.skb-clear-search {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--skb-border);
    border-radius: var(--skb-radius);
    color: var(--skb-dark);
    cursor: pointer;
    transition: var(--skb-transition);
    font-size: 14px;
}

.skb-clear-search:hover {
    background: var(--skb-danger);
    color: white;
    border-color: var(--skb-danger);
}

/* عنصر النتيجة */
.skb-result-item {
    background: #fff;
    border-radius: var(--skb-radius-lg);
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: var(--skb-shadow);
    border: 1px solid var(--skb-border);
    transition: var(--skb-transition);
    position: relative;
    overflow: hidden;
}

.skb-result-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--skb-shadow-hover);
}

.skb-result-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--skb-primary), var(--skb-info));
    opacity: 0;
    transition: opacity 0.3s;
}

.skb-result-item:hover::before {
    opacity: 1;
}

/* رأس النتيجة */
.skb-result-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
    gap: 16px;
}

.skb-result-file-info {
    flex: 1;
}

.skb-file-type {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: bold;
    text-transform: uppercase;
    color: white;
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.skb-type-pdf { background: linear-gradient(135deg, #d32f2f, #f44336); }
.skb-type-docx, .skb-type-doc { background: linear-gradient(135deg, #1976d2, #2196f3); }
.skb-type-txt { background: linear-gradient(135deg, #388e3c, #4caf50); }
.skb-type-jpg, .skb-type-jpeg, .skb-type-png, .skb-type-gif { 
    background: linear-gradient(135deg, #f57c00, #ff9800); 
}

.skb-result-title {
    font-size: 1.3em;
    font-weight: 700;
    color: var(--skb-dark);
    margin: 0 0 8px 0;
    line-height: 1.3;
}

.skb-result-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    font-size: 0.9em;
    color: #6c757d;
}

.skb-result-meta > span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.skb-meta-icon {
    font-size: 0.9em;
}

/* نقاط الصلة */
.skb-result-score {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    min-width: 80px;
}

.skb-score-bar {
    width: 60px;
    height: 6px;
    background: #e9ecef;
    border-radius: 3px;
    overflow: hidden;
}

.skb-score-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--skb-warning), var(--skb-success));
    border-radius: 3px;
    transition: width 0.5s ease;
}

.skb-score-text {
    font-size: 0.8em;
    color: #6c757d;
    font-weight: 600;
}

/* محتوى النتيجة */
.skb-result-content {
    margin-bottom: 20px;
}

.skb-result-snippet {
    font-size: 1em;
    line-height: 1.7;
    color: var(--skb-dark);
    background: #f8f9fa;
    padding: 16px;
    border-radius: var(--skb-radius);
    border-right: 4px solid var(--skb-primary);
    position: relative;
}

.skb-result-snippet::before {
    content: '"';
    position: absolute;
    top: -5px;
    right: -5px;
    font-size: 2em;
    color: var(--skb-primary);
    opacity: 0.3;
}

/* تمييز النص */
.skb-highlight {
    background: linear-gradient(120deg, #fff3cd 0%, #ffeaa7 100%);
    padding: 2px 4px;
    border-radius: 3px;
    font-weight: 600;
    color: #856404;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

/* أزرار الإجراءات */
.skb-result-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.skb-action-btn {
    padding: 10px 16px;
    border: 1px solid var(--skb-border);
    border-radius: var(--skb-radius);
    background: #fff;
    color: var(--skb-dark);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--skb-transition);
    display: inline-flex;
    align-items: center;
    gap: 6px;
    position: relative;
    overflow: hidden;
}

.skb-action-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent);
    transition: left 0.5s;
}

.skb-action-btn:hover::before {
    left: 100%;
}

.skb-action-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(0,0,0,0.15);
}

.skb-view-btn:hover {
    background: var(--skb-primary);
    border-color: var(--skb-primary);
    color: white;
}

.skb-whatsapp-btn:hover {
    background: #25d366;
    border-color: #25d366;
    color: white;
}

.skb-copy-btn:hover {
    background: var(--skb-info);
    border-color: var(--skb-info);
    color: white;
}

.skb-download-btn:hover {
    background: var(--skb-success);
    border-color: var(--skb-success);
    color: white;
}

/* التصفح */
.skb-pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 32px;
    padding: 20px;
    background: var(--skb-light);
    border-radius: var(--skb-radius-lg);
    border: 1px solid var(--skb-border);
}

.skb-pagination-info {
    font-weight: 600;
    color: var(--skb-dark);
}

.skb-pagination-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.skb-page-btn {
    padding: 8px 16px;
    border: 1px solid var(--skb-border);
    border-radius: var(--skb-radius);
    background: #fff;
    color: var(--skb-dark);
    cursor: pointer;
    transition: var(--skb-transition);
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.skb-page-btn:hover:not(:disabled) {
    background: var(--skb-primary);
    border-color: var(--skb-primary);
    color: white;
}

.skb-page-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.skb-page-numbers {
    display: flex;
    gap: 4px;
}

.skb-page-number {
    width: 36px;
    height: 36px;
    border: 1px solid var(--skb-border);
    border-radius: var(--skb-radius);
    background: #fff;
    color: var(--skb-dark);
    cursor: pointer;
    transition: var(--skb-transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 500;
}

.skb-page-number:hover,
.skb-page-number.active {
    background: var(--skb-primary);
    border-color: var(--skb-primary);
    color: white;
}

/* حالة عدم وجود نتائج */
.skb-no-results {
    text-align: center;
    padding: 60px 20px;
    background: #fff;
    border-radius: var(--skb-radius-lg);
    border: 1px solid var(--skb-border);
    box-shadow: var(--skb-shadow);
}

.skb-no-results-icon {
    font-size: 4em;
    margin-bottom: 20px;
    opacity: 0.6;
}

.skb-no-results-title {
    font-size: 1.5em;
    font-weight: 700;
    color: var(--skb-dark);
    margin: 0 0 12px 0;
}

.skb-no-results-text {
    color: #6c757d;
    font-size: 1.1em;
    margin: 0 0 24px 0;
    line-height: 1.6;
}

.skb-search-suggestions {
    background: var(--skb-light);
    padding: 20px;
    border-radius: var(--skb-radius);
    text-align: right;
    max-width: 400px;
    margin: 0 auto;
}

.skb-search-suggestions h5 {
    margin: 0 0 12px 0;
    color: var(--skb-dark);
    font-weight: 600;
}

.skb-search-suggestions ul {
    margin: 0;
    padding: 0;
    list-style: none;
}

.skb-search-suggestions li {
    padding: 4px 0;
    color: #6c757d;
    position: relative;
    padding-right: 16px;
}

.skb-search-suggestions li::before {
    content: '•';
    position: absolute;
    right: 0;
    color: var(--skb-primary);
    font-weight: bold;
}

/* حالة الخطأ */
.skb-search-error {
    text-align: center;
    padding: 40px 20px;
    background: #fff;
    border-radius: var(--skb-radius-lg);
    border: 1px solid #f5c6cb;
    box-shadow: var(--skb-shadow);
}

.skb-error-icon {
    font-size: 3em;
    margin-bottom: 16px;
}

.skb-error-title {
    font-size: 1.3em;
    font-weight: 700;
    color: var(--skb-danger);
    margin: 0 0 8px 0;
}

.skb-error-text {
    color: #721c24;
    margin: 0 0 20px 0;
}

.skb-retry-search {
    padding: 10px 20px;
    background: var(--skb-danger);
    color: white;
    border: none;
    border-radius: var(--skb-radius);
    cursor: pointer;
    transition: var(--skb-transition);
    font-weight: 500;
}

.skb-retry-search:hover {
    background: #c82333;
    transform: translateY(-1px);
}

/* الرسوم المتحركة */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.skb-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid #ffffff40;
    border-top: 2px solid #ffffff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* الاستجابة للشاشات الصغيرة */
@media (max-width: 768px) {
    .skb-search-container {
        margin: 10px;
        max-width: none;
    }
    
    .skb-search-form {
        padding: 20px;
    }
    
    .skb-search-input-group {
        flex-direction: column;
    }
    
    .skb-search-filters {
        grid-template-columns: 1fr;
    }
    
    .skb-result-header {
        flex-direction: column;
        gap: 12px;
    }
    
    .skb-result-actions {
        justify-content: center;
    }
    
    .skb-action-btn {
        flex: 1;
        justify-content: center;
        min-width: 0;
    }
    
    .skb-pagination {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }
    
    .skb-pagination-controls {
        justify-content: center;
    }
    
    .skb-results-header {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .skb-search-title {
        font-size: 1.4em;
    }
    
    .skb-search-description {
        font-size: 1em;
    }
    
    .skb-result-item {
        padding: 16px;
    }
    
    .skb-result-title {
        font-size: 1.1em;
    }
    
    .skb-result-meta {
        flex-direction: column;
        gap: 8px;
    }
    
    .skb-action-btn {
        font-size: 13px;
        padding: 8px 12px;
    }
}

/* تحسينات إضافية للطباعة */
@media print {
    .skb-search-form,
    .skb-result-actions,
    .skb-pagination {
        display: none;
    }
    
    .skb-result-item {
        box-shadow: none;
        border: 1px solid #ccc;
        break-inside: avoid;
    }
}

/* تحسينات الوصولية */
.skb-action-btn:focus,
.skb-search-button:focus,
.skb-search-input:focus {
    outline: 2px solid var(--skb-primary);
    outline-offset: 2px;
}

/* تأثيرات التحميل */
.skb-loading {
    opacity: 0.7;
    pointer-events: none;
}

.skb-loading .skb-result-item {
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}