.terra-chat {
    position: fixed;
    right: 24px;
    bottom: max(22px, env(safe-area-inset-bottom));
    z-index: 50;
    width: 56px;
}
.terra-chat-widget > summary {
    display: flex;
    align-items: center;
    justify-content: center;
    list-style: none;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: #087b46;
    color: #fff;
    box-shadow: 0 4px 18px #15354f30;
    cursor: pointer;
}
.terra-chat-widget > summary::-webkit-details-marker { display: none; }
.terra-chat-widget > summary:hover { background: #066a3c; }
.terra-chat-widget > summary svg { flex: none; }
.terra-chat-panel {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: min(290px, calc(100vw - 40px));
    padding: 20px;
    border: 1px solid #dfe7ee;
    border-radius: 14px;
    background: #fff;
    color: #15354f;
    box-shadow: 0 8px 30px #15354f20;
}
.terra-chat-title { font-weight: 600; font-size: 16px; }
.terra-chat-title span { display: block; font-weight: 400; font-size: 12px; color: #60758a; }
.terra-chat-panel p { font-size: 14px; margin: 14px 0 18px; }
.terra-chat-link {
    display: block;
    padding: 11px 12px;
    border-radius: 7px;
    color: #fff;
    background: #087b46;
    text-decoration: none;
    text-align: center;
    font-size: 13px;
    font-weight: 500;
    min-height: 44px;
}
body { padding-bottom: 80px; }
@media (max-width: 650px) {
    .terra-chat { right: 18px; bottom: max(18px, env(safe-area-inset-bottom)); }
}