.guest {
    min-height: 100vh;
    display: grid;
    place-items: center;
}
.guest .main {
    width: 100%;
    max-width: none;
}
.login-card { text-align: left; }
.login-brand {
    min-height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 18px;
}
.login-brand .brand { margin: 0; }
.login-brand img {
    display: block;
    max-width: 240px;
    max-height: 110px;
    width: auto;
    height: auto;
    object-fit: contain;
}
.sidebar-logo {
    height: 82px;
    margin: 0 10px 18px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.sidebar-logo img {
    display: block;
    max-width: 100%;
    max-height: 72px;
    width: auto;
    height: auto;
    object-fit: contain;
}
.logo-setting {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: #f9fafb;
}
.logo-preview {
    width: 180px;
    height: 110px;
    flex: 0 0 180px;
    display: grid;
    place-items: center;
    border: 1px dashed #b8c1ce;
    border-radius: 10px;
    background: #fff;
    color: var(--muted);
}
.logo-preview img {
    display: block;
    max-width: 160px;
    max-height: 90px;
    object-fit: contain;
}
.logo-setting small {
    display: block;
    color: var(--muted);
    margin-top: 6px;
}
.logo-remove { margin-top: 12px; }
@media (max-width: 600px) {
    .logo-setting { align-items: stretch; flex-direction: column; }
    .logo-preview { width: 100%; flex-basis: 110px; }
}