.login-shell {
    display: grid;
    min-height: 33.75rem;
    place-items: center;
}

.login-card {
    position: relative;
    width: min(31.25rem, 100%);
    padding: clamp(1.625rem, 6vw, 2.875rem);
    border: 1px solid var(--border);
    border-radius: 1.375rem;
    background: var(--surface);
    box-shadow: var(--shadow);
    text-align: center;
}

.login-back {
    position: absolute;
    top: 1rem;
    left: 1rem;
    display: grid;
    width: 2.625rem;
    height: 2.625rem;
    place-items: center;
    border: 1px solid var(--border);
    border-radius: 0.6875rem;
    background: var(--surface-2);
    text-decoration: none;
    transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.login-back:hover {
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.07);
    transform: translateY(-0.125rem);
}

.login-avatar {
    position: relative;
    width: 7.25rem;
    margin: 0 auto 1.25rem;
}

.login-avatar img {
    width: 7.25rem;
    height: 7.25rem;
    border: 3px solid var(--primary);
    border-radius: 1.125rem;
    object-fit: cover;
}

.login-avatar i {
    position: absolute;
    right: -0.4375rem;
    bottom: -0.4375rem;
    display: grid;
    width: 2.1875rem;
    height: 2.1875rem;
    place-items: center;
    border-radius: 50%;
    background: var(--surface-2);
    color: var(--muted);
}

.login-card h1 {
    margin-bottom: 0.75rem;
}

.login-card > p {
    margin: 0 0 1.375rem;
    color: var(--muted);
}

.platform-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.625rem;
    margin: 0 0 1.25rem;
    padding: 0;
    border: 0;
}

.platform-option {
    cursor: pointer;
}

.platform-option input {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

.platform-btn {
    display: flex;
    min-height: 3.25rem;
    align-items: center;
    justify-content: center;
    gap: 0.5625rem;
    border: 1px solid var(--border);
    border-radius: 0.6875rem;
    background: var(--surface-2);
    font-weight: 700;
    transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
}

.platform-option:hover .platform-btn {
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.07);
    transform: translateY(-0.125rem);
}

.platform-option input:checked + .platform-btn {
    border-color: var(--primary);
    background: rgba(108, 92, 231, 0.15);
    box-shadow: 0 0 0 1px rgba(108, 92, 231, 0.22);
}

.platform-option input:focus-visible + .platform-btn {
    outline: 2px solid var(--primary);
    outline-offset: 0.1875rem;
}

.platform-option--disabled {
    cursor: not-allowed;
}

.platform-option--disabled .platform-btn,
.platform-option--disabled:hover .platform-btn {
    border-color: var(--border);
    background: var(--surface-2);
    opacity: 0.48;
    transform: none;
}

.platform-status {
    padding: 0.1875rem 0.375rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    color: var(--muted);
    font-size: 0.58rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    line-height: 1;
    text-transform: uppercase;
}

.login-help--notice {
    margin-top: -0.5rem;
    color: var(--muted);
    text-align: center;
}

.login-form {
    display: grid;
    gap: 0.75rem;
}

.login-field {
    display: grid;
    gap: 0.5rem;
    text-align: left;
}

.login-field > span {
    font-size: 0.82rem;
    font-weight: 700;
}

.login-help {
    color: var(--subtle);
    font-size: 0.75rem;
    line-height: 1.5;
    text-align: left;
}

.login-details {
    display: grid;
    gap: 0.625rem;
    margin: 0 0 1.25rem;
}

.login-details > div {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.75rem 0.875rem;
    border: 1px solid var(--border);
    border-radius: 0.6875rem;
    background: var(--surface-2);
}

.login-details dt {
    color: var(--muted);
    font-size: 0.8rem;
}

.login-details dd {
    margin: 0;
    font-weight: 800;
}

@media (max-width: 430px) {
    .platform-selector {
        grid-template-columns: 1fr;
    }
}