:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --success-color: #059669;
    --warning-color: #d97706;
    --danger-color: #dc2626;
    --info-color: #0891b2;
    --purple-color: #7c3aed;
    
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-success: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --gradient-danger: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    --gradient-purple: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    --border-radius: 12px;
    --border-radius-lg: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--gradient-primary);
    min-height: 100vh;
    color: #1f2937;
    line-height: 1.6;
}

/* Main Grid Layout */
.dashboard-container {
    display: grid;
    grid-template-areas: 
        "header header"
        "sidebar main-content"
        "footer footer";
    grid-template-columns: 280px 1fr;
    grid-template-rows: auto 1fr auto;
    min-height: 100vh;
    gap: 20px;
    padding: 20px;
    max-width: 1920px;
    margin: 0 auto;
}

/* Header */
.header {
    grid-area: header;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem 2rem;
    box-shadow: var(--shadow-lg);
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 2rem;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.header-logo img {
    height: 100px;
    width: auto;
}

.header-title {
    text-align: center;
}

.header-title h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.header-subtitle {
    color: #6b7280;
    font-size: 0.9rem;
}

.ai-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--gradient-success);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.ai-status .pulse {
    width: 8px;
    height: 8px;
    background: #fff;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

/* Sidebar */
.sidebar {
    grid-area: sidebar;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
    display: grid;
    grid-template-rows: auto auto 1fr auto;
    gap: 1.5rem;
}

.kpi-overview {
    display: grid;
    gap: 1rem;
}

.kpi-card {
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    border-radius: var(--border-radius);
    padding: 1rem;
    border-left: 4px solid var(--primary-color);
}

.kpi-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.kpi-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: #374151;
}

.kpi-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.kpi-trend {
    font-size: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.trend-up { color: var(--success-color); }
.trend-down { color: var(--danger-color); }

/* Main Content Area with Advanced Subgrid */
.main-content {
    grid-area: main-content;
    display: grid;
    grid-template-rows: auto auto auto 1fr;
    gap: 1.5rem;
}

/* Advanced ML Controls */
.ml-controls {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
    display: grid;
    grid-template-areas: 
        "title title title title"
        "controls controls controls actions";
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    align-items: end;
}

.ml-controls-title {
    grid-area: title;
    font-size: 1.25rem;
    font-weight: 700;
    color: #1f2937;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ml-controls-grid {
    grid-area: controls;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.ml-actions {
    grid-area: actions;
    display: grid;
    gap: 0.5rem;
}

.ml-algorithm-selector {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.5rem;
    margin-top: 1rem;
}

.algorithm-btn {
    padding: 0.5rem 1rem;
    background: #f3f4f6;
    border: 2px solid transparent;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.algorithm-btn.active {
    background: var(--gradient-purple);
    color: white;
    border-color: var(--purple-color);
}

.control-group {
    display: grid;
    gap: 0.5rem;
}

.control-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: #374151;
}

.control-input,
.control-select {
    padding: 0.5rem;
    border: 2px solid #e5e7eb;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    transition: var(--transition);
}

.control-input:focus,
.control-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.ml-button {
    padding: 0.75rem 1.5rem;
    background: var(--gradient-purple);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

/* TRAM Analytics Grid with Subgrid */
.tram-analytics {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    position: relative;
}

.tram-analytics::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--success-color), var(--warning-color), var(--danger-color), var(--info-color));
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

/* Advanced TRAM Metrics Container */
.tram-metrics-container {
    display: grid;
    grid-template-rows: auto auto 1fr;
    gap: 1.5rem;
}

.metrics-header {
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.metrics-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1f2937;
}

.metrics-controls {
    display: grid;
    grid-template-columns: repeat(3, auto);
    gap: 0.5rem;
}

.metric-filter {
    padding: 0.5rem 1rem;
    background: #f3f4f6;
    border: none;
    border-radius: 20px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition);
}

.metric-filter.active {
    background: var(--gradient-primary);
    color: white;
}

.ml-status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--gradient-success);
    color: white;
    border-radius: 20px;
    font-size: 0.875rem;
}

.tram-card {
    background: #ffffff;
    border-radius: var(--border-radius);
    padding: 1.25rem;
    box-shadow: var(--shadow-md);
    border-top: 4px solid;
    transition: var(--transition);
    display: grid;
    grid-template-rows: auto 1fr auto;
    gap: 1rem;
    position: relative;
    overflow: hidden;
}

.tram-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.1) 100%);
    opacity: 0;
    transition: var(--transition);
}

.tram-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.tram-card:hover::before {
    opacity: 1;
}

.tram-card.rft { 
    border-top-color: var(--success-color);
    background: linear-gradient(135deg, #ffffff 0%, #f0fdf4 100%);
}
.tram-card.ppm { 
    border-top-color: var(--warning-color);
    background: linear-gradient(135deg, #ffffff 0%, #fffbeb 100%);
}
.tram-card.scrap { 
    border-top-color: var(--danger-color);
    background: linear-gradient(135deg, #ffffff 0%, #fef2f2 100%);
}
.tram-card.efficiency { 
    border-top-color: var(--info-color);
    background: linear-gradient(135deg, #ffffff 0%, #f0f9ff 100%);
}

.tram-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.tram-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: white;
}

.tram-card.rft .tram-icon { background: var(--success-color); }
.tram-card.ppm .tram-icon { background: var(--warning-color); }
.tram-card.scrap .tram-icon { background: var(--danger-color); }
.tram-card.efficiency .tram-icon { background: var(--info-color); }

.tram-value {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: baseline;
    gap: 0.25rem;
}

.tram-unit {
    font-size: 1rem;
    font-weight: 500;
    opacity: 0.7;
}

.tram-label {
    font-size: 0.875rem;
    color: #6b7280;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* TRAM Chart Integration */
.tram-chart {
    height: 60px;
    background: rgba(0, 0, 0, 0.02);
    border-radius: 6px;
    position: relative;
    overflow: hidden;
}

.chart-line {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    border-radius: 1.5px;
    background: var(--primary-color);
    animation: chartGrow 1.5s ease-out;
}

@keyframes chartGrow {
    from { width: 0; }
    to { width: var(--chart-width, 75%); }
}

/* Advanced Metrics Display */
.tram-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: #6b7280;
}

.detail-value {
    font-weight: 600;
    color: #374151;
}

/* ML Results Grid */
.ml-results {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.results-section {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-lg);
}

.section-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid #f3f4f6;
}

.section-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1rem;
}

.predictions .section-icon { background: var(--gradient-success); }
.classification .section-icon { background: var(--gradient-warning); }
.regression .section-icon { background: var(--gradient-danger); }

.section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1f2937;
}

/* Prediction Cards */
.prediction-grid {
    display: grid;
    gap: 1rem;
}

.prediction-item {
    background: #f8fafc;
    border-radius: var(--border-radius);
    padding: 1rem;
    border-left: 4px solid;
}

.prediction-item.high-confidence { border-left-color: var(--success-color); }
.prediction-item.medium-confidence { border-left-color: var(--warning-color); }
.prediction-item.low-confidence { border-left-color: var(--danger-color); }

.prediction-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.prediction-metric {
    font-weight: 600;
    color: #374151;
}

.confidence-badge {
    padding: 0.25rem 0.5rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
}

.confidence-high {
    background: #d1fae5;
    color: #065f46;
}

.confidence-medium {
    background: #fef3c7;
    color: #92400e;
}

.confidence-low {
    background: #fee2e2;
    color: #991b1b;
}

.prediction-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* Footer */
.footer {
    grid-area: footer;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: var(--border-radius-lg);
    padding: 1rem 2rem;
    box-shadow: var(--shadow-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-nav {
    display: flex;
    gap: 1rem;
}

.footer-link {
    color: #6b7280;
    text-decoration: none;
    font-size: 0.875rem;
    transition: var(--transition);
}

.footer-link:hover {
    color: var(--primary-color);
}

/* Animations */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.5s ease-out;
}

/* Loading States */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.6), transparent);
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Chatbot Styles */
.chat-button {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #1a365d, #2c5282);
    border: none;
    border-radius: 50%;
    color: white;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 0 8px 32px rgba(26, 54, 93, 0.4);
    transition: all 0.3s ease;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-button:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 40px rgba(26, 54, 93, 0.6);
}

.chat-button.active {
    background: linear-gradient(135deg, #e53e3e, #fc8181);
}

.chat-container {
    position: fixed;
    bottom: 100px;
    right: 30px;
    width: 480px;
    min-width: 320px;
    max-width: 80vw;
    height: 650px;
    min-height: 400px;
    max-height: 80vh;
    background: rgba(255, 255, 255, 0.98);
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(20px);
    transform: translateY(100%) scale(0.8);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 999;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    resize: both;
    border: 2px solid transparent;
}

.chat-container.open {
    transform: translateY(0) scale(1);
    opacity: 1;
    border-color: rgba(49, 130, 206, 0.2);
}

.chat-resize-handle {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 20px;
    height: 20px;
    background: linear-gradient(45deg, transparent 0%, transparent 40%, #3182ce 40%, #3182ce 60%, transparent 60%);
    cursor: ne-resize;
    border-bottom-left-radius: 20px;
    opacity: 0.6;
    transition: opacity 0.2s ease;
}

.chat-resize-handle:hover {
    opacity: 1;
}

.chat-resize-handle::before,
.chat-resize-handle::after {
    content: '';
    position: absolute;
    background: #3182ce;
    border-radius: 1px;
}

.chat-resize-handle::before {
    bottom: 8px;
    left: 3px;
    width: 2px;
    height: 8px;
    transform: rotate(-45deg);
}

.chat-resize-handle::after {
    bottom: 3px;
    left: 8px;
    width: 8px;
    height: 2px;
    transform: rotate(-45deg);
}

.chat-header {
    background: linear-gradient(135deg, #1a365d, #2c5282);
    color: white;
    padding: 20px;
    text-align: center;
    position: relative;
}

.chat-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: bold;
}

.chat-header p {
    margin: 5px 0 0 0;
    font-size: 14px;
    opacity: 0.9;
}

.chat-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    opacity: 0.8;
    transition: opacity 0.2s ease;
}

.chat-close:hover {
    opacity: 1;
}

.chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-height: calc(100% - 200px);
    min-height: 200px;
    align-items: stretch;
}

.chat-message {
    width: fit-content;
    max-width: 85%;
    min-width: 100px;
    padding: 12px 16px;
    border-radius: 18px;
    font-size: 14px;
    line-height: 1.5;
    animation: messageSlide 0.3s ease;
    word-wrap: break-word;
    overflow-wrap: break-word;
    white-space: pre-wrap;
    min-height: auto;
    height: auto;
    overflow: visible;
    box-sizing: border-box;
    flex-shrink: 0;
}

.chat-message.user {
    background: linear-gradient(135deg, #3182ce, #2c5282);
    color: white;
    align-self: flex-end;
    margin-left: auto;
    width: fit-content;
    max-width: 85%;
}

.chat-message.bot {
    background: #f7fafc;
    color: #2d3748;
    align-self: flex-start;
    border: 1px solid #e2e8f0;
    position: relative;
    overflow: visible;
    min-height: auto;
    width: fit-content;
    max-width: 85%;
}

.chat-message.bot.typing {
    background: linear-gradient(90deg, #f7fafc 25%, #e2e8f0 50%, #f7fafc 75%);
    background-size: 200% 100%;
    animation: typingShimmer 1.5s ease-in-out infinite;
}

@keyframes typingShimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.chat-message.bot .bot-name {
    font-weight: bold;
    color: #1a365d;
    margin-bottom: 5px;
    display: block;
    font-size: 12px;
}

.chat-message.bot {
    flex-shrink: 0;
    max-height: none !important;
}

.chat-input-container {
    padding: 20px;
    border-top: 1px solid #e2e8f0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
}

.chat-input-group {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: 10px;
    align-items: end;
}

.chat-input {
    padding: 12px 16px;
    border: 2px solid #e2e8f0;
    border-radius: 25px;
    font-size: 14px;
    resize: none;
    font-family: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    outline: none;
    background: rgba(255, 255, 255, 0.9);
}

.chat-input:focus {
    border-color: #3182ce;
    box-shadow: 0 0 0 3px rgba(49, 130, 206, 0.1);
}

.chat-send {
    padding: 12px 16px;
    background: linear-gradient(135deg, #1a365d, #2c5282);
    color: white;
    border: none;
    border-radius: 50%;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-send:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px rgba(26, 54, 93, 0.3);
}

.chat-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.chat-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0 20px 10px 20px;
    max-height: 120px;
    overflow-y: auto;
}

.chat-suggestion {
    background: #f1f5f9;
    border: 1px solid #e2e8f0;
    padding: 8px 12px;
    border-radius: 20px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s ease;
    color: #475569;
}

.chat-suggestion:hover {
    background: #e2e8f0;
    transform: translateY(-1px);
}

.chat-typing {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: #f7fafc;
    border: 1px solid #e2e8f0;
    border-radius: 18px;
    align-self: flex-start;
    max-width: 85%;
}

.chat-typing-dots {
    display: flex;
    gap: 4px;
}

.chat-typing-dot {
    width: 8px;
    height: 8px;
    background: #64748b;
    border-radius: 50%;
    animation: typingDot 1.4s ease-in-out infinite both;
}

.chat-typing-dot:nth-child(2) {
    animation-delay: 0.16s;
}

.chat-typing-dot:nth-child(3) {
    animation-delay: 0.32s;
}

@keyframes typingDot {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

@keyframes messageSlide {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 1400px) {
    .dashboard-container {
        grid-template-columns: 250px 1fr;
        grid-template-areas: 
            "header header"
            "sidebar main-content"
            "footer footer";
    }
}

@media (max-width: 1024px) {
    .dashboard-container {
        grid-template-areas: 
            "header"
            "main-content"
            "sidebar"
            "footer";
        grid-template-columns: 1fr;
    }

    .tram-analytics {
        grid-template-columns: repeat(2, 1fr);
    }

    .chat-container {
        width: 90vw;
        height: 70vh;
        right: 5vw;
        left: 5vw;
        bottom: 80px;
    }
}

@media (max-width: 768px) {
    .dashboard-container {
        padding: 10px;
        gap: 15px;
    }

    .header {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 1rem;
    }

    .tram-analytics {
        grid-template-columns: 1fr;
    }

    .ml-results {
        grid-template-columns: 1fr;
    }

    .chat-container {
        width: 95vw;
        height: 60vh;
        right: 2.5vw;
        left: 2.5vw;
        bottom: 70px;
    }

    .chat-button {
        bottom: 20px;
        right: 20px;
        width: 50px;
        height: 50px;
        font-size: 20px;
    }
}