* {
    box-sizing: border-box;
}

body {
    margin: 0;

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    background:
        linear-gradient(
            135deg,
            #071c21,
            #0d353b
        );

    min-height: 100vh;

    display: flex;

    justify-content: center;

    align-items: center;
}


.container {
    width: 100%;

    max-width: 850px;

    padding: 20px;
}


.card {
    background: white;

    border-radius: 20px;

    padding: 35px;

    box-shadow:
        0 20px 50px
        rgba(0,0,0,.3);
}


h1 {
    margin-top: 0;

    text-align: center;
}


.subtitle {
    text-align: center;

    color: #666;
}


.status {
    margin: 25px 0;

    padding: 15px;

    border-radius: 10px;

    text-align: center;

    background: #eef3f4;
}


.transcript {
    height: 350px;

    overflow-y: auto;

    border:
        1px solid #ddd;

    border-radius: 12px;

    padding: 15px;

    margin-bottom: 20px;
}


.ai-message,
.customer-message {

    padding: 12px;

    margin-bottom: 10px;

    border-radius: 10px;

}


.ai-message {
    background: #eef6f7;
}


.customer-message {
    background: #f4f4f4;
}


.controls {

    display: flex;

    gap: 15px;

    justify-content: center;

    margin: 20px 0;
}


button {

    border: none;

    padding:
        14px 24px;

    border-radius: 10px;

    cursor: pointer;

    font-size: 16px;
}


#startBtn {
    background: #0d353b;

    color: white;
}


#stopBtn {
    background: #ddd;

    color: #222;
}


button:disabled {
    opacity: .5;

    cursor: not-allowed;
}


.lead-info {

    padding: 20px;

    background: #f7f7f7;

    border-radius: 12px;
}