.smardoo-webrtc-card {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    margin: 20px 0;
    font-family: system-ui, -apple-system, sans-serif;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
}

.smardoo-webrtc-icon {
    width: 64px;
    height: 64px;
    background: #eff6ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px auto;
}

.smardoo-webrtc-icon svg {
    width: 32px;
    height: 32px;
    color: #2563eb;
}

.smardoo-webrtc-title {
    margin: 0 0 8px 0;
    color: #1e293b;
    font-size: 1.25rem;
    font-weight: 600;
}

.smardoo-webrtc-desc {
    color: #64748b;
    margin-bottom: 24px;
    font-size: 0.95rem;
    line-height: 1.5;
}

.smardoo-webrtc-controls {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 16px;
}

.smardoo-webrtc-btn {
    border: none;
    border-radius: 50px;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.smardoo-webrtc-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.smardoo-webrtc-btn svg {
    width: 20px;
    height: 20px;
}

.smardoo-btn-call {
    background-color: #22c55e;
    color: white;
}

.smardoo-btn-call:not(:disabled):hover {
    background-color: #16a34a;
}

.smardoo-btn-hangup {
    background-color: #ef4444;
    color: white;
}

.smardoo-btn-hangup:not(:disabled):hover {
    background-color: #dc2626;
}

.smardoo-webrtc-status {
    font-size: 0.875rem;
    color: #64748b;
    min-height: 20px;
    font-weight: 500;
}

.smardoo-webrtc-status.error {
    color: #ef4444;
}

/* Pulsing animation for ringing/calling state */
@keyframes pulse-ring {
    0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(34, 197, 94, 0); }
    100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.smardoo-btn-call.ringing {
    animation: pulse-ring 1.5s infinite;
}