:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #059669;
    --danger-color: #dc2626;
    --warning-color: #d97706;
    --background-color: #f8fafc;
    --surface-color: #ffffff;
    --border-color: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

header {
    text-align: center;
    margin-bottom: 30px;
    padding: 30px 0;
    background: linear-gradient(135deg, var(--primary-color), #3b82f6);
    border-radius: 16px;
    color: white;
    box-shadow: var(--shadow-lg);
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 20px;
}

.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.1);
    padding: 12px 20px;
    border-radius: 8px;
    margin-top: 20px;
    backdrop-filter: blur(10px);
    gap: 16px;
    flex-wrap: wrap;
}

.connection-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

.session-info {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
}

.session-label {
    opacity: 0.8;
}

.session-id {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    background: rgba(255, 255, 255, 0.2);
    padding: 4px 8px;
    border-radius: 4px;
}

.status-indicator {
    font-size: 12px;
    animation: pulse 2s infinite;
}

.status-indicator.connected {
    color: var(--success-color);
}

.status-indicator.disconnected {
    color: var(--danger-color);
}

.webhook-info {
    display: flex;
    align-items: center;
    gap: 8px;
}

.webhook-url {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 4px 8px;
    border-radius: 4px;
}

.controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--surface-color);
    padding: 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.stats {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.count {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.last-received {
    margin-left: 12px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.actions {
    display: flex;
    gap: 12px;
}

.btn {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

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

.btn-primary:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background: #475569;
    transform: translateY(-1px);
}

.btn-success {
    background: var(--success-color);
    color: white;
}

.btn-success:hover {
    background: #047857;
    transform: translateY(-1px);
}

.copy-btn {
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    padding: 4px;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.payloads-container {
    min-height: 400px;
}

.no-payloads {
    text-align: center;
    padding: 60px 20px;
    background: var(--surface-color);
    border-radius: 12px;
    border: 2px dashed var(--border-color);
}

.empty-state h3 {
    color: var(--text-secondary);
    margin-bottom: 12px;
    font-weight: 600;
}

.empty-state p {
    color: var(--text-muted);
    margin-bottom: 30px;
}

.empty-state code {
    background: var(--background-color);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
}

.payloads-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.payload-item {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    animation: slideInFromTop 0.3s ease-out;
}

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

.payload-header {
    background: var(--background-color);
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.payload-meta {
    display: flex;
    align-items: center;
    gap: 16px;
}

.payload-id {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.8rem;
    background: var(--primary-color);
    color: white;
    padding: 2px 8px;
    border-radius: 12px;
}

.payload-timestamp {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.payload-method {
    background: var(--success-color);
    color: white;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    font-weight: 500;
}

.payload-actions {
    display: flex;
    gap: 8px;
}

.action-btn {
    background: none;
    border: 1px solid var(--border-color);
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s;
}

.action-btn:hover {
    background: var(--background-color);
}

.payload-content {
    padding: 20px;
}

.payload-section {
    margin-bottom: 20px;
}

.payload-section:last-child {
    margin-bottom: 0;
}

.payload-section h4 {
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.payload-section pre {
    background: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 16px;
    overflow-x: auto;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.85rem;
    line-height: 1.4;
    color: var(--text-primary);
}

.payload-section.collapsed pre {
    display: none;
}

.section-toggle {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0;
    margin-bottom: 8px;
}

.section-toggle:hover {
    color: #1d4ed8;
}

.section-toggle::after {
    content: '▼';
    font-size: 0.7rem;
    transition: transform 0.2s;
}

.payload-section.collapsed .section-toggle::after {
    transform: rotate(-90deg);
}

.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--primary-color);
    color: white;
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transition: all 0.3s ease;
    transform: translateX(100%);
}

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

.toast.hidden {
    transform: translateX(100%);
}

.toast.success {
    background: var(--success-color);
}

.toast.error {
    background: var(--danger-color);
}

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

@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .controls {
        flex-direction: column;
        gap: 16px;
        align-items: stretch;
    }
    
    .actions {
        justify-content: center;
    }
    
    .status-bar {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .session-info {
        justify-content: center;
    }
    
    .payload-header {
        flex-direction: column;
        gap: 12px;
        align-items: stretch;
    }
    
    .payload-meta {
        justify-content: center;
        flex-wrap: wrap;
    }
}