/**
 * استایل‌های Energy Sales Advisor
 * نسخه: 1.0.0
 */

/* متغیرهای رنگی */
:root {
    --esa-primary: #9F43F0;
    --esa-secondary: #E79943;
    --esa-dark: #3A3B50;
    --esa-light: #f5f7fa;
    --esa-white: #ffffff;
    --esa-border: #e1e5e9;
    --esa-shadow: rgba(0, 0, 0, 0.1);
    --esa-shadow-hover: rgba(0, 0, 0, 0.15);
    --esa-gradient-primary: linear-gradient(135deg, #9F43F0 0%, #c471ed 100%);
    --esa-gradient-secondary: linear-gradient(135deg, #E79943 0%, #f4a456 100%);
    --esa-gradient-bg: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

/* کانتینر اصلی */
.esa-calculator-container {
    max-width: 1200px;
    margin: 30px auto;
    padding: 30px;
    font-family: 'IRANSans', 'Tahoma', sans-serif;
    direction: rtl;
    background: var(--esa-gradient-bg);
    border-radius: 20px;
    box-shadow: 0 10px 40px var(--esa-shadow);
}

/* هدر */
.esa-header {
    text-align: center;
    margin-bottom: 40px;
}

.esa-header h2 {
    color: var(--esa-dark);
    font-size: 2.5em;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px var(--esa-shadow);
    font-weight: bold;
}

.esa-subtitle {
    color: #666;
    font-size: 1.2em;
    margin: 0;
}

/* فرم */
.esa-form {
    background: var(--esa-white);
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px var(--esa-shadow);
}

.esa-form-group {
    margin-bottom: 25px;
}

.esa-form-group label {
    display: block;
    color: var(--esa-dark);
    font-weight: bold;
    margin-bottom: 10px;
    font-size: 15px;
}

.esa-form-group input[type="text"],
.esa-form-group input[type="number"],
.esa-form-group select {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--esa-border);
    border-radius: 10px;
    font-size: 15px;
    color: var(--esa-dark);
    background: var(--esa-white);
    transition: all 0.3s ease;
    font-family: inherit;
}

.esa-form-group input:focus,
.esa-form-group select:focus {
    outline: none;
    border-color: var(--esa-primary);
    box-shadow: 0 0 0 4px rgba(159, 67, 240, 0.1);
}

/* گروه ورودی (input + select) */
.esa-input-group {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 10px;
}

.esa-help-text {
    display: block;
    margin-top: 8px;
    color: #666;
    font-size: 13px;
}

/* تنظیمات پیشرفته */
.esa-advanced-settings {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 2px dashed var(--esa-border);
}

.esa-toggle-advanced {
    width: 100%;
    padding: 15px;
    background: var(--esa-light);
    border: 2px solid var(--esa-border);
    border-radius: 10px;
    color: var(--esa-dark);
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.esa-toggle-advanced:hover {
    background: var(--esa-white);
    border-color: var(--esa-primary);
    color: var(--esa-primary);
}

.esa-toggle-advanced .dashicons {
    transition: transform 0.3s ease;
}

.esa-advanced-content {
    margin-top: 20px;
}

.esa-settings-group {
    background: var(--esa-light);
    padding: 20px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.esa-settings-group h4 {
    color: var(--esa-dark);
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 18px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--esa-border);
}

/* دکمه‌ها */
.esa-form-actions {
    margin-top: 30px;
    text-align: center;
}

.esa-btn {
    padding: 15px 40px;
    border: none;
    border-radius: 30px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: inherit;
}

.esa-btn-primary {
    background: var(--esa-gradient-primary);
    color: var(--esa-white);
    box-shadow: 0 4px 15px rgba(159, 67, 240, 0.3);
}

.esa-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(159, 67, 240, 0.4);
}

.esa-btn-secondary {
    background: var(--esa-gradient-secondary);
    color: var(--esa-white);
    box-shadow: 0 4px 15px rgba(231, 153, 67, 0.3);
}

.esa-btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(231, 153, 67, 0.4);
}

.esa-btn-small {
    padding: 8px 20px;
    font-size: 14px;
}

.esa-btn .dashicons {
    font-size: 20px;
    width: 20px;
    height: 20px;
}

/* نتایج */
.esa-results {
    margin-top: 40px;
}

.esa-description {
    background: var(--esa-white);
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 25px;
    box-shadow: 0 4px 15px var(--esa-shadow);
    border-right: 5px solid var(--esa-primary);
}

.esa-description h3 {
    color: var(--esa-dark);
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.8em;
}

.esa-description p {
    color: #555;
    font-size: 16px;
    line-height: 1.8;
    margin: 0;
}

/* جزئیات محاسبات */
.esa-calculation-details {
    background: var(--esa-white);
    padding: 25px;
    border-radius: 15px;
    margin-bottom: 25px;
    box-shadow: 0 4px 15px var(--esa-shadow);
}

.esa-calculation-details h4 {
    color: var(--esa-dark);
    margin-top: 0;
    margin-bottom: 20px;
    font-size: 1.5em;
    border-bottom: 2px solid var(--esa-border);
    padding-bottom: 10px;
}

.esa-details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.esa-detail-item {
    background: var(--esa-light);
    padding: 15px;
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.esa-detail-item .label {
    color: #666;
    font-size: 14px;
}

.esa-detail-item .value {
    color: var(--esa-primary);
    font-size: 20px;
    font-weight: bold;
}

/* محصولات */
.esa-products {
    background: var(--esa-white);
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 4px 15px var(--esa-shadow);
}

.esa-products h3 {
    color: var(--esa-dark);
    margin-top: 0;
    margin-bottom: 25px;
    font-size: 1.8em;
    text-align: center;
}

.esa-products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 25px;
    margin-bottom: 25px;
}

.esa-product-card {
    background: var(--esa-white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 12px var(--esa-shadow);
    transition: all 0.3s ease;
    border: 2px solid var(--esa-border);
}

.esa-product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--esa-shadow-hover);
    border-color: var(--esa-primary);
}

.esa-product-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    background: var(--esa-light);
}

.esa-product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.esa-product-card:hover .esa-product-image img {
    transform: scale(1.05);
}

.esa-product-content {
    padding: 20px;
}

.esa-product-title {
    color: var(--esa-dark);
    font-size: 17px;
    font-weight: bold;
    margin-bottom: 12px;
    line-height: 1.4;
}

.esa-product-excerpt {
    color: #666;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.esa-product-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 15px;
    border-top: 1px solid var(--esa-border);
}

.esa-product-price {
    color: var(--esa-primary);
    font-size: 18px;
    font-weight: bold;
}

.esa-no-products {
    text-align: center;
    padding: 60px 20px;
    color: #999;
    font-size: 18px;
}

/* بارگذاری بیشتر */
.esa-load-more {
    text-align: center;
    margin-top: 30px;
}

/* لودینگ */
.esa-loading {
    text-align: center;
    padding: 60px 20px;
    background: var(--esa-white);
    border-radius: 15px;
    box-shadow: 0 4px 15px var(--esa-shadow);
}

.esa-spinner {
    width: 50px;
    height: 50px;
    margin: 0 auto 20px;
    border: 4px solid var(--esa-border);
    border-top-color: var(--esa-primary);
    border-radius: 50%;
    animation: esa-spin 1s linear infinite;
}

@keyframes esa-spin {
    to {
        transform: rotate(360deg);
    }
}

.esa-loading p {
    color: #666;
    font-size: 16px;
}

/* ریسپانسیو */
@media (max-width: 992px) {
    .esa-calculator-container {
        padding: 25px;
    }

    .esa-products-grid {
        grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
        gap: 20px;
    }

    .esa-details-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
        gap: 15px;
    }
}

@media (max-width: 768px) {
    .esa-calculator-container {
        margin: 15px;
        padding: 20px;
    }

    .esa-header h2 {
        font-size: 2em;
    }

    .esa-subtitle {
        font-size: 1em;
    }

    .esa-form {
        padding: 20px;
    }

    .esa-input-group {
        grid-template-columns: 1fr;
    }

    .esa-products-grid {
        grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
        gap: 15px;
    }

    .esa-details-grid {
        grid-template-columns: 1fr;
    }

    .esa-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .esa-calculator-container {
        margin: 10px;
        padding: 15px;
        border-radius: 15px;
    }

    .esa-header h2 {
        font-size: 1.6em;
    }

    .esa-products-grid {
        grid-template-columns: 1fr;
    }

    .esa-product-footer {
        flex-direction: column;
        gap: 10px;
        align-items: stretch;
    }

    .esa-product-footer .esa-btn {
        width: 100%;
    }
}

/* انیمیشن‌ها */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.esa-results {
    animation: fadeIn 0.5s ease;
}

/* اسکرول بار سفارشی */
.esa-calculator-container *::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.esa-calculator-container *::-webkit-scrollbar-track {
    background: var(--esa-light);
    border-radius: 10px;
}

.esa-calculator-container *::-webkit-scrollbar-thumb {
    background: var(--esa-primary);
    border-radius: 10px;
}

.esa-calculator-container *::-webkit-scrollbar-thumb:hover {
    background: #8a35d1;
}