/* حاسبة الطاقة الشمسية المحسنة - CSS
   تصميم وبرمجة: آدم بيطار - مجموعة الأجنحة للطاقة الشمسية */

/* متغيرات CSS للألوان والقياسات */
:root {
    --primary-color: #4caf50;
    --secondary-color: #2e7d32;
    --accent-color: #81c784;
    --background-color: #ffffff;
    --surface-color: #f8f9fa;
    --text-color: #333333;
    --text-secondary: #666666;
    --border-color: #e0e0e0;
    --shadow-light: 0 2px 8px rgba(0,0,0,0.1);
    --shadow-medium: 0 4px 16px rgba(0,0,0,0.15);
    --shadow-heavy: 0 8px 32px rgba(0,0,0,0.2);
    --border-radius: 12px;
    --border-radius-small: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* الوضع الليلي */
.solar-calculator-enhanced.dark-mode {
    --background-color: #1a1a1a;
    --surface-color: #2d2d2d;
    --text-color: #ffffff;
    --text-secondary: #cccccc;
    --border-color: #404040;
}

/* إعدادات عامة */
* {
    box-sizing: border-box;
}

.solar-calculator-enhanced {
    font-family: var(--font-family);
    color: var(--text-color);
    background-color: var(--background-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-medium);
    overflow: hidden;
    transition: var(--transition);
    direction: rtl;
    text-align: right;
    max-width: 1200px;
    margin: 20px auto;
}

/* رأس الحاسبة */
.calculator-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 30px;
    position: relative;
    overflow: hidden;
}

.calculator-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><circle cx="50" cy="50" r="2" fill="rgba(255,255,255,0.1)"/></svg>') repeat;
    animation: float 20s infinite linear;
}

@keyframes float {
    0% { transform: translateX(0) translateY(0); }
    100% { transform: translateX(-50px) translateY(-50px); }
}

.branding-section {
    position: relative;
    z-index: 2;
    text-align: center;
    margin-bottom: 20px;
}

.main-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 10px 0;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.developer-credit {
    font-size: 1.1rem;
    opacity: 0.9;
    margin: 0;
    font-weight: 300;
}

.calculator-controls {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}

.color-picker-section,
.dark-mode-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
}

.color-theme-selector {
    padding: 8px 12px;
    border: none;
    border-radius: var(--border-radius-small);
    background: rgba(255,255,255,0.2);
    color: white;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.color-theme-selector:hover {
    background: rgba(255,255,255,0.3);
}

.dark-mode-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 25px;
    background: transparent;
    color: white;
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.dark-mode-btn:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.5);
}

/* النموذج */
.calculator-form {
    padding: 0;
}

.form-section {
    padding: 30px;
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.form-section:last-child {
    border-bottom: none;
}

.form-section:hover {
    background-color: var(--surface-color);
}

.section-title {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0 0 25px 0;
    color: var(--primary-color);
    padding-bottom: 10px;
    border-bottom: 2px solid var(--accent-color);
}

.section-title .icon {
    font-size: 1.8rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

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

.form-group label {
    font-weight: 600;
    color: var(--text-color);
    font-size: 14px;
}

.form-group input,
.form-group select {
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-small);
    font-size: 16px;
    background-color: var(--background-color);
    color: var(--text-color);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(76, 175, 80, 0.1);
}

/* البحث في الأجهزة */
.appliances-search {
    position: relative;
    margin-bottom: 20px;
}

.appliances-search input {
    width: 100%;
    padding: 12px 50px 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius-small);
    font-size: 16px;
    background-color: var(--background-color);
    color: var(--text-color);
    transition: var(--transition);
}

.clear-btn {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 18px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.clear-btn:hover {
    color: var(--primary-color);
}

/* فئات الأجهزة */
.appliances-categories {
    display: flex;
    gap: 10px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.category-btn {
    padding: 10px 20px;
    border: 2px solid var(--border-color);
    border-radius: 25px;
    background: var(--background-color);
    color: var(--text-color);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.category-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.category-btn.active {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

/* شبكة الأجهزة */
.appliances-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
}

.appliance-card {
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    background: var(--background-color);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.appliance-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 4px;
    height: 100%;
    background: var(--primary-color);
    transform: scaleY(0);
    transition: var(--transition);
}

.appliance-card:hover {
    border-color: var(--primary-color);
    box-shadow: var(--shadow-light);
    transform: translateY(-2px);
}

.appliance-card:hover::before {
    transform: scaleY(1);
}

.appliance-card.selected {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color)10, var(--accent-color)10);
    box-shadow: var(--shadow-medium);
}

.appliance-card.selected::before {
    transform: scaleY(1);
}

.appliance-info {
    margin-bottom: 15px;
}

.appliance-name {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0 0 8px 0;
    color: var(--text-color);
}

.appliance-details {
    display: flex;
    gap: 15px;
    margin-bottom: 8px;
}

.appliance-details span {
    font-size: 14px;
    color: var(--text-secondary);
    background: var(--surface-color);
    padding: 4px 8px;
    border-radius: var(--border-radius-small);
}

.daily-consumption {
    font-size: 14px;
    font-weight: 600;
    color: var(--primary-color);
}

.toggle-appliance-btn {
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: var(--border-radius-small);
    background: var(--primary-color);
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.toggle-appliance-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-1px);
}

/* الأجهزة المختارة */
.selected-appliances {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 25px;
    margin-top: 30px;
}

.selected-appliances h3 {
    margin: 0 0 20px 0;
    color: var(--text-color);
    font-size: 1.3rem;
}

.selected-list {
    margin-bottom: 20px;
}

.no-selection {
    text-align: center;
    color: var(--text-secondary);
    font-style: italic;
    padding: 20px;
}

.selected-appliance-item {
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-small);
    padding: 15px;
    margin-bottom: 10px;
    display: grid;
    grid-template-columns: 1fr auto auto;
    gap: 15px;
    align-items: center;
    transition: var(--transition);
}

.selected-appliance-item:hover {
    box-shadow: var(--shadow-light);
}

.appliance-controls {
    display: flex;
    gap: 10px;
    align-items: center;
}

.quantity-control {
    display: flex;
    align-items: center;
    gap: 5px;
}

.qty-btn {
    width: 30px;
    height: 30px;
    border: 1px solid var(--border-color);
    border-radius: 50%;
    background: var(--background-color);
    color: var(--text-color);
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

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

.quantity {
    min-width: 30px;
    text-align: center;
    font-weight: 600;
}

.hours-control {
    display: flex;
    align-items: center;
    gap: 5px;
}

.hours-input {
    width: 60px;
    padding: 5px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-small);
    text-align: center;
    background: var(--background-color);
    color: var(--text-color);
}

.remove-appliance-btn {
    width: 30px;
    height: 30px;
    border: none;
    border-radius: 50%;
    background: #f44336;
    color: white;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

.remove-appliance-btn:hover {
    background: #d32f2f;
    transform: scale(1.1);
}

.appliances-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    padding: 20px;
    background: var(--background-color);
    border-radius: var(--border-radius-small);
    border: 2px solid var(--primary-color);
}

.summary-item {
    text-align: center;
}

.summary-item .label {
    display: block;
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.summary-item .value {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* الجهاز المخصص */
.custom-appliance {
    margin-top: 30px;
    padding: 25px;
    background: var(--surface-color);
    border-radius: var(--border-radius);
    border: 2px dashed var(--border-color);
}

.custom-appliance h3 {
    margin: 0 0 15px 0;
    color: var(--text-color);
}

.custom-appliance-form {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 10px;
    align-items: end;
}

.custom-appliance-form input {
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-small);
    background: var(--background-color);
    color: var(--text-color);
}

.add-btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius-small);
    background: var(--primary-color);
    color: white;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.add-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-1px);
}

/* خيارات البطاريات */
.battery-type-selector {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.radio-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 15px 20px;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--background-color);
    transition: var(--transition);
    flex: 1;
    min-width: 200px;
}

.radio-label:hover {
    border-color: var(--primary-color);
    background: var(--surface-color);
}

.radio-label input[type="radio"] {
    display: none;
}

.radio-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    position: relative;
    transition: var(--transition);
}

.radio-label input[type="radio"]:checked + .radio-custom {
    border-color: var(--primary-color);
    background: var(--primary-color);
}

.radio-label input[type="radio"]:checked + .radio-custom::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: white;
}

.battery-options {
    transition: var(--transition);
}

.lithium-connection-options {
    margin-top: 20px;
    padding: 20px;
    background: var(--surface-color);
    border-radius: var(--border-radius-small);
}

.lithium-connection-options h4 {
    margin: 0 0 15px 0;
    color: var(--text-color);
}

/* أزرار التحكم */
.form-actions {
    padding: 30px;
    background: var(--surface-color);
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.calculate-btn,
.reset-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    min-width: 200px;
    justify-content: center;
}

.calculate-btn {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    box-shadow: var(--shadow-medium);
}

.calculate-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

.calculate-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.reset-btn {
    background: var(--background-color);
    color: var(--text-color);
    border: 2px solid var(--border-color);
}

.reset-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-1px);
}

/* النتائج */
.results-section {
    padding: 30px;
    background: var(--surface-color);
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
    margin-bottom: 30px;
}

.result-card {
    background: var(--background-color);
    border-radius: var(--border-radius);
    padding: 25px;
    box-shadow: var(--shadow-light);
    border-left: 4px solid var(--primary-color);
    transition: var(--transition);
}

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

.result-card h3 {
    margin: 0 0 20px 0;
    color: var(--primary-color);
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.result-item:last-child {
    border-bottom: none;
}

.result-item .label {
    color: var(--text-secondary);
    font-size: 14px;
}

.result-item .value {
    font-weight: 600;
    color: var(--text-color);
    font-size: 16px;
}

/* التوصيات */
.recommendations-list {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.recommendation-item {
    padding: 15px;
    border-radius: var(--border-radius-small);
    border-left: 4px solid;
}

.recommendation-item.success {
    background: #e8f5e8;
    border-color: #4caf50;
}

.recommendation-item.good {
    background: #e3f2fd;
    border-color: #2196f3;
}

.recommendation-item.warning {
    background: #fff3e0;
    border-color: #ff9800;
}

.recommendation-item.suggestion {
    background: #f3e5f5;
    border-color: #9c27b0;
}

.recommendation-item.tip {
    background: #e0f2f1;
    border-color: #009688;
}

.recommendation-item h4 {
    margin: 0 0 8px 0;
    font-size: 1rem;
    color: var(--text-color);
}

.recommendation-item p {
    margin: 0;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* أزرار النتائج */
.results-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.export-btn,
.share-btn,
.new-calc-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.export-btn {
    background: #f44336;
    color: white;
}

.share-btn {
    background: #2196f3;
    color: white;
}

.new-calc-btn {
    background: var(--primary-color);
    color: white;
}

.export-btn:hover,
.share-btn:hover,
.new-calc-btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-light);
}

/* التذييل */
.calculator-footer {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    color: white;
    padding: 25px 30px;
    text-align: center;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    align-items: center;
}

.company-info,
.developer-info {
    text-align: center;
}

.company-info p,
.developer-info p {
    margin: 5px 0;
    opacity: 0.9;
}

/* مؤشر التحميل */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    text-align: center;
    color: white;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255,255,255,0.3);
    border-top: 4px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

/* التصميم المتجاوب */
@media (max-width: 768px) {
    .solar-calculator-enhanced {
        margin: 10px;
        border-radius: var(--border-radius-small);
    }
    
    .main-title {
        font-size: 2rem;
    }
    
    .calculator-controls {
        flex-direction: column;
        align-items: center;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .appliances-grid {
        grid-template-columns: 1fr;
    }
    
    .appliances-categories {
        justify-content: center;
    }
    
    .category-btn {
        flex: 1;
        min-width: 120px;
        text-align: center;
    }
    
    .selected-appliance-item {
        grid-template-columns: 1fr;
        gap: 10px;
        text-align: center;
    }
    
    .appliance-controls {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .form-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .calculate-btn,
    .reset-btn {
        width: 100%;
        max-width: 300px;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .results-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .export-btn,
    .share-btn,
    .new-calc-btn {
        width: 100%;
        max-width: 250px;
        justify-content: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .calculator-header {
        padding: 20px;
    }
    
    .main-title {
        font-size: 1.8rem;
    }
    
    .form-section {
        padding: 20px;
    }
    
    .section-title {
        font-size: 1.3rem;
    }
    
    .custom-appliance-form {
        grid-template-columns: 1fr;
    }
    
    .battery-type-selector {
        flex-direction: column;
    }
    
    .radio-label {
        min-width: auto;
    }
}

/* تحسينات إضافية للطباعة */
@media print {
    .calculator-controls,
    .form-actions,
    .results-actions,
    .loading-overlay {
        display: none !important;
    }
    
    .solar-calculator-enhanced {
        box-shadow: none;
        border: 1px solid #ccc;
    }
    
    .calculator-header {
        background: #f5f5f5 !important;
        color: #333 !important;
    }
    
    .result-card {
        break-inside: avoid;
        page-break-inside: avoid;
    }
}

/* تحسينات إمكانية الوصول */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* تحسينات للشاشات عالية الدقة */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .appliance-card,
    .result-card {
        border-width: 1px;
    }
}

/* تأثيرات إضافية للتفاعل */
.appliance-card,
.result-card,
.category-btn,
.toggle-appliance-btn,
.calculate-btn,
.reset-btn {
    will-change: transform;
}

/* تحسينات الأداء */
.calculator-header::before {
    will-change: transform;
}

.spinner {
    will-change: transform;
}

/* نهاية ملف CSS */