/* ============================================
   CDIKSA Modern Filters Design v2.1.3
   تصميم حديث للفلاتر والأزرار
   ============================================ */

/* ===== متغيرات الألوان ===== */
:root {
    --primary-dark: #064e31;
    --primary-medium: #0a6b3f;
    --primary-light: #369456;
    --primary-lighter: #7fc29b;
    --primary-lightest: #a8dab5;
    --white: #ffffff;
    --shadow-light: rgba(6, 78, 49, 0.15);
    --shadow-medium: rgba(6, 78, 49, 0.25);
    --transition-speed: 0.3s;
    --border-radius-normal: 25px;
    --border-radius-full: 50px;
}

/* ===== حاوية الفلاتر ===== */
.filters-container {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
    padding: 30px 0;
    margin-bottom: 40px;
}

/* ===== زر "جميع" الرئيسي (دائري بالكامل) ===== */
.filter-btn-all {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-light) 100%);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius-full);
    padding: 14px 35px;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 12px var(--shadow-light);
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.filter-btn-all::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 0;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-lighter) 100%);
    transition: width var(--transition-speed) ease;
    z-index: 0;
}

.filter-btn-all:hover::before {
    width: 100%;
}

.filter-btn-all:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 8px 20px var(--shadow-medium);
}

.filter-btn-all:active {
    transform: translateY(-1px) scale(1.02);
}

.filter-btn-all span,
.filter-btn-all i {
    position: relative;
    z-index: 1;
}

.filter-btn-all.active {
    background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-lighter) 100%);
    box-shadow: 0 6px 16px var(--shadow-medium);
}

/* ===== أزرار الفئات (بإطار) ===== */
.filter-btn {
    background: var(--white);
    color: var(--primary-dark);
    border: 2px solid var(--primary-dark);
    border-radius: var(--border-radius-normal);
    padding: 12px 28px;
    font-weight: 500;
    font-size: 15px;
    cursor: pointer;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
}

/* أيقونة في الجانب الأيمن */
.filter-btn i {
    font-size: 14px;
    transition: transform var(--transition-speed) ease;
}

.filter-btn:hover {
    background: var(--primary-lightest);
    border-color: var(--primary-light);
    color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px var(--shadow-light);
}

.filter-btn:hover i {
    transform: scale(1.15) rotate(5deg);
}

/* حالة التحديد (Active) */
.filter-btn.active {
    background: var(--primary-lighter);
    color: var(--white);
    border-color: var(--primary-lighter);
    font-weight: 700;
    box-shadow: 0 4px 12px var(--shadow-medium);
}

.filter-btn.active:hover {
    background: var(--primary-light);
    border-color: var(--primary-light);
    transform: translateY(-2px);
}

/* ===== أنماط خاصة للبرامج التدريبية ===== */
.training-filters .filter-btn {
    min-width: 140px;
    justify-content: center;
}

/* أيقونات المستويات */
.filter-btn[data-level="basic"] i,
.filter-btn[data-filter="basic"] i {
    color: #3498db;
}

.filter-btn[data-level="intermediate"] i,
.filter-btn[data-filter="intermediate"] i {
    color: #f39c12;
}

.filter-btn[data-level="advanced"] i,
.filter-btn[data-filter="advanced"] i {
    color: #e74c3c;
}

.filter-btn[data-level="specialized"] i,
.filter-btn[data-filter="specialized"] i {
    color: #9b59b6;
}

.filter-btn.active[data-level] i,
.filter-btn.active[data-filter] i {
    color: var(--white);
}

/* ===== أنماط خاصة للخدمات ===== */
.services-filters .filter-btn {
    min-width: 160px;
    justify-content: center;
}

/* أيقونات الخدمات */
.filter-btn[data-category="consultation"] i {
    color: #2ecc71;
}

.filter-btn[data-category="training"] i {
    color: #3498db;
}

.filter-btn[data-category="implementation"] i {
    color: #f39c12;
}

.filter-btn[data-category="monitoring"] i {
    color: #e74c3c;
}

.filter-btn[data-category="other"] i {
    color: #95a5a6;
}

.filter-btn.active[data-category] i {
    color: var(--white);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .filters-container {
        gap: 10px;
        padding: 20px 10px;
    }
    
    .filter-btn-all {
        padding: 12px 28px;
        font-size: 15px;
        width: 100%;
        justify-content: center;
    }
    
    .filter-btn {
        padding: 10px 20px;
        font-size: 14px;
        flex: 1 1 calc(50% - 10px);
        min-width: auto;
    }
    
    .filter-btn i {
        font-size: 13px;
    }
}

@media (max-width: 480px) {
    .filter-btn {
        flex: 1 1 100%;
        justify-content: center;
    }
}

/* ===== تأثيرات إضافية ===== */
.filter-btn:focus,
.filter-btn-all:focus {
    outline: 3px solid var(--primary-lightest);
    outline-offset: 2px;
}

/* تأثير النبض للزر النشط */
@keyframes pulse-active {
    0%, 100% {
        box-shadow: 0 4px 12px var(--shadow-medium);
    }
    50% {
        box-shadow: 0 6px 16px var(--shadow-medium);
    }
}

.filter-btn.active {
    animation: pulse-active 2s ease-in-out infinite;
}

/* إيقاف التأثير عند التمرير */
.filter-btn.active:hover {
    animation: none;
}

/* ===== Loading State (اختياري) ===== */
.filters-container.loading .filter-btn,
.filters-container.loading .filter-btn-all {
    pointer-events: none;
    opacity: 0.6;
}

/* ===== Print Styles ===== */
@media print {
    .filters-container {
        display: none;
    }
}