:root {
    --login-bg-inner: #6a7bff;
    --login-bg-mid: #2b2a73;
    --login-bg-outer: #090821;
    --login-card-shadow: 0 40px 70px rgba(39, 8, 23, 0.25);
    --login-text-primary: #17121c;
    --login-text-muted: #655d69;
    --login-link: #2f2a85;
    --login-link-hover: #1c175d;
    --login-input-bg: #ffffff;
    --login-input-border: rgba(23, 18, 28, 0.15);
    --login-input-border-focus: rgba(47, 42, 133, 0.55);
    --login-button-bg: #17121c;
    --login-button-bg-hover: #2f2a85;
    --login-button-text: #ffffff;
    --login-alert-info-bg: rgba(47, 42, 133, 0.12);
    --login-alert-info-text: #2f2a85;
    --login-alert-error-bg: rgba(220, 38, 38, 0.15);
    --login-alert-error-text: #9f1239;
    --login-font: 'Inter', 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

body.login-shell {
    --login-shell-padding: clamp(2rem, 5vw, 4.5rem);
    margin: 0;
    min-height: 100vh;
    display: flex;
    align-items: stretch;
    justify-content: center;
    padding: var(--login-shell-padding);
    font-family: var(--login-font);
    color: var(--login-text-primary);
    background: radial-gradient(circle at center, var(--login-bg-inner) 0%, var(--login-bg-mid) 55%, var(--login-bg-outer) 100%);
}

main.login-layout {
    width: min(940px, 100%);
    margin: auto;
    display: flex;
    align-items: stretch;
    min-height: calc(100vh - (var(--login-shell-padding) * 2));
}

.login-card {
    width: 100%;
    flex: 1 1 auto;
    background: #ffffff;
    border: 12px solid #ffffff;
    border-radius: 28px;
    box-shadow: var(--login-card-shadow);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: minmax(0, auto) minmax(0, 1fr);
    height: min(calc(100vh - (var(--login-shell-padding) * 2)), 880px);
    max-height: calc(100vh - (var(--login-shell-padding) * 2));
    min-height: 0;
}

.login-card__visual {
    position: relative;
    grid-row: 2;
    min-height: clamp(260px, 45vw, 420px);
    background: #000000;
    overflow: hidden;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    border-radius: calc(28px - 12px);
}

.login-card__image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    display: block;
    border-radius: calc(28px - 12px);
}

.login-card__content {
    grid-row: 1;
    display: grid;
    grid-template-rows: auto 1fr auto;
    gap: clamp(1.05rem, 3vw, 1.75rem);
    padding: clamp(1.5rem, 4.6vw, 2.6rem);
    min-height: 0;
    align-self: stretch;
}

.login-card__body {
    display: flex;
    flex-direction: column;
    gap: clamp(0.85rem, 2.3vw, 1.25rem);
    overflow-y: auto;
    padding-right: 0.25rem;
    min-height: 0;
    flex: 1 1 auto;
}

.login-card__back {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    width: fit-content;
    padding: 0.5rem 1rem;
    border-radius: 999px;
    background: rgba(47, 42, 133, 0.1);
    color: var(--login-link);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.login-card__back:hover,
.login-card__back:focus {
    background: rgba(47, 42, 133, 0.2);
    color: var(--login-link-hover);
    transform: translateY(-1px);
}

.login-card__back-icon {
    font-size: 1.1rem;
    line-height: 1;
}

.login-card__link {
    color: var(--login-link);
    font-weight: 600;
    text-decoration: none;
    transition: color 0.2s ease;
}

.login-card__link:hover,
.login-card__link:focus {
    color: var(--login-link-hover);
    text-decoration: underline;
}

.login-card__header {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.login-card__title {
    margin: 0;
    font-size: clamp(1.9rem, 3.8vw, 2.4rem);
    font-weight: 700;
}

.login-card__subtitle {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.55;
    color: var(--login-text-muted);
}

.login-alert {
    border-radius: 16px;
    padding: 1rem 1.25rem;
    font-size: 0.95rem;
    font-weight: 500;
}

.login-alert.login-alert--info {
    background: var(--login-alert-info-bg);
    color: var(--login-alert-info-text);
}

.login-alert.login-alert--error {
    background: var(--login-alert-error-bg);
    color: var(--login-alert-error-text);
}

.login-card__loading {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    font-size: 0.92rem;
    color: var(--login-text-muted);
}

.login-card__form {
    display: flex;
    flex-direction: column;
    gap: clamp(0.75rem, 2.2vw, 1.15rem);
}

.login-field {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.login-field__label {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.75rem;
}

.login-field label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--login-text-primary);
}

.login-field input[type="text"],
.login-field input[type="password"] {
    border-radius: 999px;
    border: 1px solid var(--login-input-border);
    background: var(--login-input-bg);
    padding: 0.72rem 1.1rem;
    font-size: 0.92rem;
    line-height: 1.2;
    color: var(--login-text-primary);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.login-field input[type="text"]:focus,
.login-field input[type="password"]:focus {
    outline: none;
    border-color: var(--login-input-border-focus);
    box-shadow: 0 0 0 3px rgba(47, 42, 133, 0.18);
}

.login-card__actions {
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.login-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.65rem;
    width: 100%;
    padding: 0.72rem 1.2rem;
    border: none;
    border-radius: 999px;
    background: var(--login-button-bg);
    color: var(--login-button-text);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.login-button:hover,
.login-button:focus {
    background: var(--login-button-bg-hover);
    transform: translateY(-1px);
    box-shadow: 0 20px 40px rgba(23, 18, 28, 0.25);
}

.login-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.login-card__footer {
    text-align: center;
    font-size: 0.85rem;
    color: var(--login-text-muted);
}

.is-hidden {
    display: none !important;
}

@media (min-width: 768px) {
    .login-card {
        grid-template-columns: 11fr 10fr;
        grid-template-rows: 1fr;
        height: min(calc(100vh - (var(--login-shell-padding) * 2)), 820px);
    }

    .login-card__visual {
        grid-column: 1;
        grid-row: 1;
        min-height: 100%;
        border-radius: calc(28px - 12px);
    }

    .login-card__content {
        grid-column: 2;
        grid-row: 1;
        overflow: hidden;
    }
}

@media (max-height: 820px) {
    body.login-shell {
        align-items: flex-start;
    }

    main.login-layout {
        min-height: auto;
    }

    .login-card {
        height: min(calc(100vh - (var(--login-shell-padding) * 2)), 820px);
    }

    .login-card__content {
        padding: clamp(1.5rem, 4.4vw, 2.35rem);
        gap: clamp(1.1rem, 2.6vw, 1.55rem);
    }

    .login-card__form {
        gap: clamp(0.85rem, 2.1vw, 1.05rem);
    }
}

@media (max-width: 640px) {
    body.login-shell {
        --login-shell-padding: clamp(1.5rem, 6vw, 2.5rem);
        align-items: flex-start;
        padding: var(--login-shell-padding);
    }
}

@media (max-height: 720px) {
    .login-card__header {
        gap: 0.55rem;
    }

    .login-card__title {
        font-size: clamp(1.8rem, 3.5vw, 2.2rem);
    }

    .login-card__subtitle {
        font-size: 0.9rem;
    }

    .login-card__content {
        gap: 1.05rem;
    }

    .login-card__form {
        gap: 0.65rem;
    }

    .login-field input[type="text"],
    .login-field input[type="password"] {
        padding: 0.68rem 0.98rem;
        font-size: 0.88rem;
    }

    .login-button {
        padding: 0.65rem 1rem;
        font-size: 0.88rem;
    }
}

@media (max-height: 660px) {
    body.login-shell {
        --login-shell-padding: clamp(1.35rem, 5vw, 2.1rem);
    }

    .login-card__content {
        padding: clamp(1.25rem, 4vw, 1.7rem);
        gap: 0.95rem;
    }

    .login-card__header {
        gap: 0.45rem;
    }

    .login-card__subtitle {
        font-size: 0.85rem;
    }

    .login-card__form {
        gap: 0.6rem;
    }

    .login-field label {
        font-size: 0.82rem;
    }

    .login-field input[type="text"],
    .login-field input[type="password"] {
        padding: 0.6rem 0.88rem;
        font-size: 0.85rem;
    }

    .login-button {
        padding: 0.6rem 0.9rem;
        font-size: 0.88rem;
    }
}

@media (max-height: 640px) {
    body.login-shell {
        --login-shell-padding: clamp(1.25rem, 5vw, 1.9rem);
    }

    .login-card__content {
        padding: clamp(1.05rem, 3.4vw, 1.45rem);
        gap: 0.8rem;
    }

    .login-card__body {
        gap: 0.75rem;
    }
}

@media (max-height: 600px) {
    body.login-shell {
        --login-shell-padding: clamp(1.1rem, 4vw, 1.65rem);
    }

    .login-card {
        height: calc(100vh - (var(--login-shell-padding) * 2));
    }

    .login-card__content {
        padding: clamp(0.95rem, 3vw, 1.3rem);
        gap: 0.7rem;
    }

    .login-card__header {
        gap: 0.4rem;
    }

    .login-card__title {
        font-size: clamp(1.6rem, 3vw, 1.95rem);
    }

    .login-card__subtitle {
        font-size: 0.82rem;
    }

    .login-card__back {
        padding: 0.42rem 0.8rem;
        font-size: 0.8rem;
    }

    .login-card__form {
        gap: 0.5rem;
    }

    .login-field input[type="text"],
    .login-field input[type="password"] {
        padding: 0.52rem 0.8rem;
        font-size: 0.82rem;
    }

    .login-button {
        padding: 0.52rem 0.8rem;
        font-size: 0.82rem;
    }
}

@media (max-height: 540px) {
    .login-card__content {
        padding: clamp(0.88rem, 2.6vw, 1.15rem);
        gap: 0.55rem;
    }

    .login-card__header {
        gap: 0.3rem;
    }

    .login-card__title {
        font-size: clamp(1.5rem, 2.8vw, 1.85rem);
    }

    .login-card__subtitle {
        font-size: 0.78rem;
    }

    .login-card__form {
        gap: 0.45rem;
    }

    .login-field label {
        font-size: 0.76rem;
    }

    .login-field input[type="text"],
    .login-field input[type="password"] {
        padding: 0.46rem 0.72rem;
        font-size: 0.78rem;
    }

    .login-button {
        padding: 0.46rem 0.74rem;
        font-size: 0.78rem;
    }

    .login-card__footer {
        font-size: 0.74rem;
    }
}

@media (max-height: 500px) {
    .login-card__content {
        padding: clamp(0.8rem, 2.4vw, 1rem);
        gap: 0.5rem;
    }

    .login-card__header {
        gap: 0.25rem;
    }

    .login-card__title {
        font-size: clamp(1.4rem, 2.5vw, 1.7rem);
    }

    .login-card__subtitle {
        font-size: 0.75rem;
    }

    .login-card__back {
        padding: 0.4rem 0.75rem;
        font-size: 0.78rem;
    }

    .login-card__form {
        gap: 0.38rem;
    }

    .login-field label {
        font-size: 0.72rem;
    }

    .login-field input[type="text"],
    .login-field input[type="password"] {
        padding: 0.42rem 0.68rem;
        font-size: 0.76rem;
    }

    .login-button {
        padding: 0.42rem 0.7rem;
        font-size: 0.76rem;
    }

    .login-card__footer {
        font-size: 0.7rem;
    }
}

@media (max-height: 460px) {
    body.login-shell {
        --login-shell-padding: clamp(0.95rem, 4vw, 1.35rem);
    }

    .login-card {
        border-width: 10px;
    }

    .login-card__content {
        padding: clamp(0.72rem, 2.2vw, 0.92rem);
        gap: 0.4rem;
    }

    .login-card__header {
        gap: 0.2rem;
    }

    .login-card__title {
        font-size: clamp(1.35rem, 2.3vw, 1.55rem);
    }

    .login-card__subtitle {
        font-size: 0.72rem;
    }

    .login-card__form {
        gap: 0.32rem;
    }

    .login-field label {
        font-size: 0.7rem;
    }

    .login-field input[type="text"],
    .login-field input[type="password"] {
        padding: 0.38rem 0.62rem;
        font-size: 0.74rem;
    }

    .login-button {
        padding: 0.38rem 0.64rem;
        font-size: 0.74rem;
    }
}

@media (max-height: 420px) {
    .login-card {
        border-width: 8px;
    }

    .login-card__content {
        padding: clamp(0.62rem, 1.8vw, 0.78rem);
        gap: 0.3rem;
    }

    .login-card__header {
        gap: 0.15rem;
    }

    .login-card__title {
        font-size: clamp(1.25rem, 2vw, 1.45rem);
    }

    .login-card__subtitle {
        font-size: 0.7rem;
    }

    .login-card__back {
        padding: 0.32rem 0.62rem;
        font-size: 0.68rem;
    }

    .login-card__form {
        gap: 0.26rem;
    }

    .login-field input[type="text"],
    .login-field input[type="password"] {
        padding: 0.34rem 0.58rem;
        font-size: 0.7rem;
    }

    .login-button {
        padding: 0.34rem 0.6rem;
        font-size: 0.7rem;
    }

    .login-card__footer {
        font-size: 0.66rem;
    }
}

@media (max-height: 380px) {
    .login-card {
        border-width: 6px;
    }

    .login-card__content {
        padding: clamp(0.55rem, 1.6vw, 0.72rem);
        gap: 0.24rem;
    }

    .login-card__header {
        gap: 0.1rem;
    }

    .login-card__title {
        font-size: clamp(1.15rem, 1.9vw, 1.35rem);
    }

    .login-card__subtitle {
        font-size: 0.66rem;
    }

    .login-card__back {
        padding: 0.28rem 0.55rem;
        font-size: 0.64rem;
    }

    .login-card__form {
        gap: 0.2rem;
    }

    .login-field label {
        font-size: 0.64rem;
    }

    .login-field input[type="text"],
    .login-field input[type="password"] {
        padding: 0.3rem 0.52rem;
        font-size: 0.66rem;
    }

    .login-button {
        padding: 0.3rem 0.54rem;
        font-size: 0.66rem;
    }

    .login-card__footer {
        font-size: 0.64rem;
    }
}

@media (max-height: 340px) {
    .login-card {
        border-width: 4px;
    }

    .login-card__content {
        padding: clamp(0.48rem, 1.4vw, 0.6rem);
        gap: 0.18rem;
    }

    .login-card__title {
        font-size: clamp(1.05rem, 1.8vw, 1.25rem);
    }

    .login-card__subtitle {
        font-size: 0.6rem;
    }

    .login-card__form {
        gap: 0.16rem;
    }

    .login-field label {
        font-size: 0.6rem;
    }

    .login-field input[type="text"],
    .login-field input[type="password"] {
        padding: 0.26rem 0.48rem;
        font-size: 0.62rem;
    }

    .login-button {
        padding: 0.26rem 0.5rem;
        font-size: 0.62rem;
    }

    .login-card__footer {
        font-size: 0.6rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}

@media (max-height: 380px) {
    .login-card {
        border-width: 6px;
    }

    .login-card__content {
        padding: clamp(0.55rem, 1.6vw, 0.72rem);
        gap: 0.24rem;
    }

    .login-card__header {
        gap: 0.1rem;
    }

    .login-card__title {
        font-size: clamp(1.15rem, 1.9vw, 1.35rem);
    }

    .login-card__subtitle {
        font-size: 0.66rem;
    }

    .login-card__back {
        padding: 0.28rem 0.55rem;
        font-size: 0.64rem;
    }

    .login-card__form {
        gap: 0.2rem;
    }

    .login-field label {
        font-size: 0.64rem;
    }

    .login-field input[type="text"],
    .login-field input[type="password"] {
        padding: 0.3rem 0.52rem;
        font-size: 0.66rem;
    }

    .login-button {
        padding: 0.3rem 0.54rem;
        font-size: 0.66rem;
    }

    .login-card__footer {
        font-size: 0.64rem;
    }
}

@media (max-height: 340px) {
    .login-card {
        border-width: 4px;
    }

    .login-card__content {
        padding: clamp(0.48rem, 1.4vw, 0.6rem);
        gap: 0.18rem;
    }

    .login-card__title {
        font-size: clamp(1.05rem, 1.8vw, 1.25rem);
    }

    .login-card__subtitle {
        font-size: 0.6rem;
    }

    .login-card__form {
        gap: 0.16rem;
    }

    .login-field label {
        font-size: 0.6rem;
    }

    .login-field input[type="text"],
    .login-field input[type="password"] {
        padding: 0.26rem 0.48rem;
        font-size: 0.62rem;
    }

    .login-button {
        padding: 0.26rem 0.5rem;
        font-size: 0.62rem;
    }

    .login-card__footer {
        font-size: 0.6rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}

@media (max-height: 420px) {
    .login-card {
        border-width: 8px;
    }

    .login-card__content {
        padding: clamp(0.7rem, 2.1vw, 0.9rem);
        gap: 0.45rem;
    }

    .login-card__header {
        gap: 0.15rem;
    }

    .login-card__title {
        font-size: clamp(1.25rem, 2vw, 1.45rem);
    }

    .login-card__subtitle {
        font-size: 0.7rem;
    }

    .login-card__back {
        padding: 0.35rem 0.7rem;
        font-size: 0.72rem;
    }

    .login-card__form {
        gap: 0.35rem;
    }

    .login-field input[type="text"],
    .login-field input[type="password"] {
        padding: 0.4rem 0.65rem;
        font-size: 0.75rem;
    }

    .login-button {
        padding: 0.4rem 0.68rem;
        font-size: 0.75rem;
    }

    .login-card__footer {
        font-size: 0.7rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}