.msg-screen{background:#f2f2f7;margin:-12px -12px 0;padding:0 0 80px;min-height:calc(100dvh - 120px)}
.msg-thread-screen{background:#f2f2f7;margin:-12px -12px 0;padding:0;display:flex;flex-direction:column;overflow:hidden}
.msg-thread-header{background:#fff;border-bottom:.5px solid #e0e0e0;padding:10px 16px;display:flex;align-items:center;gap:10px;flex-shrink:0}
.msg-chat-area{flex:1;overflow-y:auto;padding:10px 10px 6px;display:flex;flex-direction:column;gap:2px}
.msg-input-bar{background:#fff;border-top:.5px solid #e0e0e0;padding:8px 10px;padding-bottom:max(env(safe-area-inset-bottom),8px);display:flex;align-items:flex-end;gap:8px;flex-shrink:0}
.msg-reply-input{flex:1;padding:9px 14px;border:1.5px solid #e0e0e0;border-radius:20px;font-size:15px;resize:none;font-family:inherit;line-height:1.4;outline:none;max-height:120px;overflow-y:auto;background:#f9f9f9;color:#1c1c1e}
.msg-send-btn{width:38px;height:38px;border-radius:50%;background:#007aff;border:none;cursor:pointer;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:opacity .15s;-webkit-tap-highlight-color:transparent}