body, .codexlab {
    background: #f4f8fb;
    font-family: system-ui, sans-serif;
    color: #222;
}
.container.codexlab {
    max-width: 420px;
    margin: 40px auto;
    background: #eaf1fa;
    border-radius: 18px;
    box-shadow: 0 3px 18px #b3d2e6;
    padding: 32px 28px;
}
h1 {
    text-align: center;
    color: #377ed6;
}
.subtitle {
    text-align: center;
    font-size: 0.98em;
    color: #666;
    margin-bottom: 15px;
}
.tab-group {
    display: flex;
    justify-content: center;
    margin-bottom: 16px;
}
.tab {
    background: #dbe9fa;
    border: none;
    padding: 10px 18px;
    border-radius: 10px 10px 0 0;
    cursor: pointer;
    color: #377ed6;
    font-size: 1.02em;
    margin-right: 2px;
    transition: background 0.2s;
}
.tab.active {
    background: #377ed6;
    color: #fff;
}
.tab-content {
    display: none;
    padding-top: 18px;
}
.tab-content.active {
    display: block;
}
label {
    display: block;
    margin-bottom: 10px;
    color: #377ed6;
}
input[type="text"], input[type="email"], input[type="password"] {
    width: 100%;
    padding: 8px 10px;
    border-radius: 8px;
    border: 1px solid #b3d2e6;
    margin-top: 2px;
    font-size: 1em;
    background: #fff;
    box-sizing: border-box;
}
.btn-primary {
    background: #377ed6;
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 10px 0;
    width: 100%;
    margin-top: 10px;
    font-size: 1.06em;
    cursor: pointer;
    box-shadow: 0 2px 8px #b3d2e6;
    transition: background 0.2s;
}
.btn-primary:hover {
    background: #245a99;
}
.success {
    color: #238d23;
    font-weight: bold;
    margin-top: 10px;
}
.error {
    color: #d03f3f;
    font-weight: bold;
    margin-top: 10px;
}
.info-bulle {
    display: inline-block;
    background: #377ed6;
    color: #fff;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    text-align: center;
    font-size: 0.98em;
    cursor: help;
    margin-left: 5px;
}
@media (max-width: 600px) {
    .container.codexlab { max-width: 97vw; }
}