body
{
    margin: 0;
    padding: 0;
    min-height: 100vh;
    font-family: "Segoe UI",Arial,sans-serif;
    background: linear-gradient(135deg,#0f1535 60%,#1ec6e6 100%);
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.container
{
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    padding: 32px 16px 0 16px;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.robot-img
{
    width: 160px;
    height: 160px;
    margin-bottom: 16px;
    background: none;
    display: flex;
    align-items: center;
    justify-content: center;
}
.robot-img img
{
    animation: ai-float 2.2s ease-in-out infinite alternate;
}
@keyframes ai-float
{
    0%
    {
        transform: translateY(0) scale(1);
        filter: drop-shadow(0 2px 8px #ffa20044);
    }
    50%
    {
        transform: translateY(-12px) scale(1.04);
        filter: drop-shadow(0 8px 18px #ffa20066);
    }
    100%
    {
        transform: translateY(0) scale(1);
        filter: drop-shadow(0 2px 8px #ffa20044);
    }
}
.title
{
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: #ffa200;
    text-align: left;
    width: 100%;
}
.subtitle
{
    font-size: 1.5rem;
    font-weight: 500;
    margin-bottom: 24px;
    color: #fff;
    text-align: left;
    width: 100%;
    line-height: 1.2;
}
.card
{
    background: rgba(20,30,60,.95);
    border-radius: 18px;
    padding: 20px 18px;
    margin-bottom: 24px;
    width: 100%;
    box-sizing: border-box;
    box-shadow: 0 4px 24px rgba(0,0,0,.18);
}
.result-box
{
    background: linear-gradient(135deg,#18213c 60%,#1ec6e6 100%);
    border-radius: 12px;
    padding: 64px 18px;
    max-width: 340px;
    margin: 60px auto;
    color: #fff;
    box-shadow: 0 4px 24px rgba(0,0,0,.18);
}
.accuracy
{
    font-size: 1.1rem;
    margin-bottom: 10px;
    color: #fff;
}
.accuracy .percent
{
    color: #ffa200;
    font-weight: bold;
    font-size: 1.3rem;
}
.desc
{
    font-size: 1rem;
    color: #b8c6e0;
    margin-bottom: 6px;
}
.desc .highlight
{
    color: #ffa200;
    font-weight: 500;
    text-decoration: underline;
    cursor: pointer;
}
.input-group
{
    width: 100%;
    margin-bottom: 18px;
}
.input-group input
{
    width: 100%;
    padding: 14px 12px;
    border-radius: 8px;
    border: none;
    background: #232b45;
    color: #b8c6e0;
    font-size: 1rem;
    outline: none;
    margin-bottom: 0;
    box-sizing: border-box;
}
.btn
{
    width: 100%;
    padding: 14px 0;
    border: none;
    border-radius: 24px;
    background: linear-gradient(90deg,#1ec6e6 0%,#25a4e9 100%);
    color: #fff;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background .2s;
    margin-top: 8px;
    box-shadow: 0 2px 8px rgba(30,198,230,.18);
    animation: btn-breath 1.8s ease-in-out infinite;
}
@keyframes btn-breath
{
    0%
    {
        box-shadow: 0 2px 16px 0 rgba(30,198,230,.25),0 2px 8px rgba(30,198,230,.18);
        transform: scale(1);
    }
    50%
    {
        box-shadow: 0 4px 32px 0 rgba(30,198,230,.38),0 2px 16px rgba(30,198,230,.22);
        transform: scale(1.04);
    }
    100%
    {
        box-shadow: 0 2px 16px 0 rgba(30,198,230,.25),0 2px 8px rgba(30,198,230,.18);
        transform: scale(1);
    }
}
#chat-btn
{
    animation: breath 1.6s ease-in-out infinite;
}
@keyframes breath
{
    0%
    {
        box-shadow: 0 2px 12px 0 #15a22333;
        transform: scale(1);
    }
    50%
    {
        box-shadow: 0 6px 24px 0 #15a22355;
        transform: scale(1.04);
    }
    100%
    {
        box-shadow: 0 2px 12px 0 #15a22333;
        transform: scale(1);
    }
}
@media(max-width: 480px)
{
    .container
    {
        padding: 18px 4px 0 4px;
    }
    .robot-img
    {
        width: 120px;
        height: 120px;
    }
    .title
    {
        font-size: 2rem;
        text-align: center;
        margin-bottom: 0;
    }
    .subtitle
    {
        font-size: 1.1rem;
        text-align: center;
    }
}
.btn
{
    overflow: hidden;
    position: relative;
}
.btn::after
{
    content: "";
    position: absolute;
    top: 0;
    left: -75%;
    width: 50%;
    height: 100%;
    background: linear-gradient(120deg,rgba(255,255,255,.3) 0%,rgba(255,255,255,.6) 50%,rgba(255,255,255,.3) 100%);
    transform: skewX(-25deg);
    transition: left .6s ease;
}
.btn:hover::after
{
    left: 125%;
}