@import url('https://fonts.googleapis.com/css2?family=Work+Sans:wght@200&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Poppins&display=swap');

body{
    background-color: #f5f5f5;
}
.container{
    width:50vw;
    margin:50px auto;
    padding:25px 10 px;
    background.cooor:#ffffff;
    border-radius:3px;
    text-align:center;
    box-shadow:0 19px 38px rgba(0,0,0,6.30), 0 15px 12px rgba(0,0,0,0.22);
}
.heading{
    font.weight:'work Sans',sans-serif;
    font.size:1.5 rem;
}
.textInput{
    border:none;
    border-bottom: 2 px solid #ddd;
    line-height:1.2rem;
    transition:0.3s;
    margin-bottom:40px;
    width:50%;
}
.textInput:focus{
    outline:none;
    border-bottom:20px solid #333;
    transition:0.3s;
}
.botton{
    background-color:#ffffff;
    color:#9a4ef1;
    border:0.16em solid #9a4ef1;
    border-radius:2em;
    padding:15px 32px;
    text-align:center;
    text-decoration:none;
    display:inline-block;
    font-size:16px;
    cursor:pointer;
    transition:0.3s;
    width:50%;
}
.button:hover{
    background-color:#9a4ef1;
    color:#ffffff;
    transition:0.3s;
}
/*.emptyText1{
    background-color:#62bd56;
 }*/
.emptyText{
    font.family:'Work Sans',sans-serif;
    font-size:1.5rem;
}
.message{
    background-color:#71aeeb;
    color:#ffffff;
    width:35%;
    padding:8px;
    border-radius:2em;
    margin:15px 0px 0px auto;
    font-family:'Poppins', sans-serif;
    text-align: left;
}
.sender{
    background-color:#71aeeb;
    margin-left:auto;
}
.receiver{
    background-color:#62bd56;
    margin-left:0px;
}
.leaveButton{
    background-color:#f5f5f5;
    border-color:#aa0404;
    color:#aa0404;
    border:0.16em solid #aa0404;
    border-radius:2em;
    padding:15px 32px;
    text-align:center;
    text-decoration:none;
    display:inline-block;
    font-size:16px;
    cursor:pointer;
    transition:0.3s;
    width:200px;
    margin:20px;

}
.leaveButton:hover{
    background-color:#aa0404;
    color:#ffffff;
    transition:0.3s;
}
.nav{
    width:95vw;
    text-align:right;
}
.sign-out{
    font-family:Verdana,Geneva,Tahoma,sans-serif;
    text-decoration:none;
    color:#333;
    transition:0.3s;
}
.sign-out:hover{
    cursor:pointer;
    color:#1d5a97;
    transition:0.3s;
}


.message.receiver {
  background-color: #62bd56;
  border-radius: 18px;
  padding: 15px 20px;
  color: #fff;
  width: fit-content;
  max-width: 80%;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.15);
}

/* 包裹输入框与按钮的容器 */
.input-block {
  display: flex;
  flex-direction: column;  /* 输入框和按钮上下排列 */
  align-items: flex-start;
  gap: 10px;
  margin-top: 10px;
  width: 100%;
}

/* 输入框美化 */
.input-block input[type="text"] {
  width: 95%;                /* 控制宽度不突出气泡 */
  max-width: 500px;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1.5px solid #ccc;
  background-color: #fff;
  color: #333;
  font-size: 1rem;
  box-sizing: border-box;
  transition: all 0.25s ease;
}

/* 聚焦效果（发光边框） */
.input-block input[type="text"]:focus {
  border-color: #4CAF50;
  box-shadow: 0 0 6px rgba(76, 175, 80, 0.6);
  outline: none;
}

/* 提交按钮风格 */
.input-block button {
  background-color: #4CAF50;
  color: #fff;
  border: none;
  padding: 8px 18px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.95rem;
  transition: background-color 0.2s;
}

.input-block button:hover {
  background-color: #43a047;
}
.warning-box {
    text-align: center;
    max-width: 800px;
    margin: 10px auto 25px auto;
    padding: 12px 18px;
    background: #fff7e6;
    border-left: 5px solid #fa8c16;
    border-radius: 6px;
    font-size: 16px;
    color: #874d00;
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}