* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Vazirmatn', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #ffffff;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    direction: rtl;
    color: #1a1a1a;
    margin: 0;
}

.container {
    background: #ffffff;
    border-radius: 0;
    padding: 2rem;
    box-shadow: none;
    text-align: center;
    max-width: 400px;
    width: 100%;
    border: none;
}

.title {
    color: #1a1a1a;
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
    font-weight: 500;
    letter-spacing: -0.01em;
}


        .timestamp {
            color: #9ca3af;
            font-size: 0.75rem;
            margin-top: 0.5rem;
            font-weight: 400;
            direction: ltr;
            text-align: center;
        }

.error {
    color: #dc2626;
    padding: 0.5rem;
    font-size: 0.8rem;
}

.refresh-btn {
    background: #f3f4f6;
    color: #374151;
    border: 1px solid #d1d5db;
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    margin-top: 1rem;
    transition: all 0.15s ease;
}

.refresh-btn:hover {
    background: #e5e7eb;
    border-color: #9ca3af;
}

.loading {
    display: none;
    margin-top: 0.5rem;
    color: #9ca3af;
    font-size: 0.8rem;
}

.loading.show {
    display: block;
}

.product-section {
    margin-bottom: 1.5rem;
}

.section-title {
    color: #1a1a1a;
    margin-bottom: 1rem;
    font-size: 1rem;
    font-weight: 500;
}

.input-group {
    margin-bottom: 1rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.25rem;
    color: #374151;
    font-weight: 400;
    font-size: 0.8rem;
}

.input-group input {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #d1d5db;
    border-radius: 4px;
    font-size: 0.9rem;
    text-align: center;
    transition: border-color 0.15s ease;
    font-family: 'Vazirmatn', sans-serif;
}

.input-group input:focus {
    outline: none;
    border-color: #6b7280;
}

.result {
    padding: 0.75rem 0;
}

.price-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
    padding: 0.5rem;
    background: #f8f9fa;
    border-radius: 4px;
}

.price-row.profit {
    background: #dcfce7;
    border: 1px solid #bbf7d0;
}

.price-row:last-child {
    margin-bottom: 0;
}

.price-label {
    font-size: 0.8rem;
    color: #6b7280;
    font-weight: 400;
}

.price-value {
    font-size: 1.1rem;
    font-weight: 600;
    color: #1a1a1a;
}

        .price-row.profit .price-value {
            color: #059669;
        }

        .price-row.total .price-value {
            color: #1a1a1a;
            font-weight: 700;
        }

        .price-row.shipping .price-value {
            color: #d97706;
        }

        .price-unit {
            font-size: 0.8rem;
            color: #9ca3af;
            font-weight: 400;
        }

        .shipping-section {
            margin-top: 1rem;
            padding: 1rem;
            background: #fefce8;
            border: 1px solid #fbbf24;
            border-radius: 6px;
        }

        .section-label {
            display: block;
            font-size: 0.85rem;
            color: #92400e;
            font-weight: 500;
            margin-bottom: 0.75rem;
        }

        .radio-group {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .radio-option {
            display: flex;
            align-items: center;
            cursor: pointer;
            font-size: 0.85rem;
            color: #78350f;
        }

        .radio-option input[type="radio"] {
            margin-left: 0.5rem;
            margin-right: 0.5rem;
        }

        .radio-option span {
            flex: 1;
        }

.currency-selector {
    margin-bottom: 1.5rem;
}

.selector-group {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
}

        .radio-label {
            display: flex;
            flex-direction: column;
            align-items: center;
            cursor: pointer;
            padding: 0.75rem 1rem;
            border-radius: 6px;
            transition: all 0.15s ease;
            background: #f3f4f6;
            border: 1px solid #d1d5db;
            flex: 1;
            justify-content: center;
        }

.radio-label:hover {
    background: #e5e7eb;
}

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

        .radio-label input[type="radio"]:checked + .radio-text {
            color: #1a1a1a;
            font-weight: 600;
        }

        .radio-label:has(input[type="radio"]:checked) {
            background: #ffffff;
            border-color: #3b82f6;
            box-shadow: 0 2px 8px rgba(59, 130, 246, 0.2);
            transform: scale(1.02);
        }

        .radio-text {
            font-size: 0.9rem;
            color: #6b7280;
            transition: color 0.15s ease;
            display: flex;
            align-items: center;
            gap: 0.25rem;
        }

        .currency-rate {
            font-size: 0.75rem;
            color: #374151;
            font-weight: 600;
            margin-top: 0.5rem;
            text-align: center;
        }

/* ریسپانسیو برای موبایل */
@media (max-width: 480px) {
    .container {
        padding: 1.5rem;
        max-width: 100%;
        margin: 0 1rem;
    }

    .title {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }

    .rate-value {
        font-size: 1.75rem;
    }

    .selector-group {
        flex-direction: column;
        gap: 0.5rem;
    }

    .radio-label {
        padding: 0.75rem 1rem;
        width: 100%;
    }

    .price-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }

    .price-label {
        font-size: 0.75rem;
    }

    .price-value {
        font-size: 1rem;
    }

    .input-group input {
        font-size: 16px; /* جلوگیری از zoom در iOS */
    }
}

/* ریسپانسیو برای تبلت */
@media (min-width: 481px) and (max-width: 768px) {
    .container {
        max-width: 500px;
        padding: 2.5rem;
    }

    .title {
        font-size: 1.4rem;
    }

    .rate-value {
        font-size: 2.25rem;
    }

    .radio-label {
        padding: 0.6rem 1.2rem;
    }
}

/* ریسپانسیو برای دسکتاپ */
@media (min-width: 769px) {
    .container {
        max-width: 600px;
        padding: 3rem;
    }

    .title {
        font-size: 1.5rem;
    }

    .rate-value {
        font-size: 2.5rem;
    }

    .selector-group {
        gap: 1rem;
    }

    .radio-label {
        padding: 0.75rem 1.5rem;
    }

    .input-group input {
        padding: 0.75rem;
        font-size: 1rem;
    }

    .price-row {
        padding: 0.75rem;
    }
}