:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.loading-container {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.loading-container.hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Main Container */
.containerRang {
    max-width: 600px;
    width: 100%;
    background: var(--card-bg);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    padding: 30px;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: 0.3s;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.title {
    font-size: 24px;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Language Toggle */
.lang-toggle {
    display: flex;
    background: var(--bg-color);
    border-radius: 12px;
    padding: 4px;
    position: relative;
}

.lang-btn {
    padding: 8px 16px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    transition: var(--transition);
    position: relative;
    z-index: 2;
}

.lang-btn.active {
    color: white;
}

.lang-indicator {
    position: absolute;
    top: 4px;
    left: 4px;
    height: calc(100% - 8px);
    background: var(--primary-gradient);
    border-radius: 8px;
    transition: var(--transition);
    z-index: 1;
}

body[dir="rtl"] .lang-indicator {
    left: auto;
    right: 4px;
}

/* Slider Container */
.slider-container {
    margin: 40px 0;
    position: relative;
}

.slider-track {
    position: relative;
    height: 8px;
    background: var(--border-color);
    border-radius: 4px;
    margin: 20px 0;
}

.slider-range {
    position: absolute;
    height: 100%;
    background: var(--primary-gradient);
    border-radius: 4px;
    transition: var(--transition);
}

.slider-handle {
    position: absolute;
    width: 24px;
    height: 24px;
    background: white;
    border: 3px solid #667eea;
    border-radius: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    cursor: grab;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
    z-index: 3;
}

.slider-handle:hover {
    transform: translate(-50%, -50%) scale(1.2);
    box-shadow: var(--shadow-lg);
}

.slider-handle.dragging {
    cursor: grabbing;
    transform: translate(-50%, -50%) scale(1.3);
    box-shadow: 0 0 0 8px rgba(102, 126, 234, 0.1);
}

/* Tooltip */
.tooltip {
    position: absolute;
    bottom: calc(100% + 15px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--text-primary);
    color: white;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s ease;
}

.tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--text-primary);
}

.slider-handle.dragging .tooltip {
    opacity: 1;
}

/* Input Fields */
.input-container {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.input-group {
    flex: 1;
    position: relative;
}

.input-label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.input-wrapper {
    position: relative;
}

.input-field {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 16px;
    font-weight: 500;
    transition: var(--transition);
    background: white;
}

.input-field:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.input-field.error {
    border-color: var(--error-color);
    animation: shake 0.5s ease;
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.currency-symbol {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
    font-weight: 500;
}

body[dir="rtl"] .currency-symbol {
    left: auto;
    right: 16px;
}

.input-field {
    padding-left: 35px;
}

body[dir="rtl"] .input-field {
    padding-left: 16px;
    padding-right: 35px;
}

/* Statistics Cards */
.stats-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 30px;
}

.stat-card {
    background: var(--bg-color);
    padding: 15px;
    border-radius: 12px;
    transition: var(--transition);
}

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

.stat-label {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 5px;
}

.stat-value {
    font-size: 20px;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Apply Button */
.apply-btn {
    width: 100%;
    padding: 14px 24px;
    background: var(--primary-gradient);
    color: white;
    border: none;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

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

.apply-btn:active {
    transform: translateY(0);
}

/* Ripple Effect */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple 0.6s ease-out;
}

@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Notification */
.notification {
    position: fixed;
    top: 20px;
    right: 20px;
    background: white;
    padding: 16px 20px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    transform: translateX(400px);
    transition: transform 0.3s ease;
    z-index: 1000;
}

body[dir="rtl"] .notification {
    right: auto;
    left: 20px;
    transform: translateX(-400px);
}

.notification.show {
    transform: translateX(0);
}

.notification-icon {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.notification.success .notification-icon {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.notification.error .notification-icon {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
}

.notification-message {
    font-size: 14px;
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 640px) {
    .container {
        padding: 20px;
    }

    .title {
        font-size: 20px;
    }

    .stats-container {
        grid-template-columns: 1fr;
    }

    .input-container {
        flex-direction: column;
        gap: 15px;
    }
}