/*
 * Страница входа.
 *
 * Дополняет общий style.css.
 *
 * Содержит:
 *
 * - форму входа;
 * - показ и скрытие пароля;
 * - восстановление доступа;
 * - регистрацию;
 * - юридические ссылки;
 * - мобильную и десктопную адаптацию.
 */


/* =========================================================
   Переменные
   ========================================================= */

:root {
    --login-max-width: 480px;

    --login-border:
        color-mix(
            in srgb,
            var(--muted) 22%,
            transparent
        );

    --login-field-border:
        color-mix(
            in srgb,
            var(--muted) 40%,
            transparent
        );
}


/* =========================================================
   Страница
   ========================================================= */

body.auth-page {
    min-width: 320px;

    margin: 0;

    background:
        radial-gradient(
            circle at 50% 0,
            color-mix(
                in srgb,
                var(--accent) 8%,
                transparent
            ),
            transparent 28rem
        ),
        var(--bg);
}


.auth-app-container {
    width: 100%;
    min-height: 100dvh;

    padding-bottom:
        env(
            safe-area-inset-bottom,
            0px
        );

    box-sizing: border-box;

    background: transparent;
}


/* =========================================================
   Заголовок страницы
   ========================================================= */

.auth-header {
    display: flex;

    min-height:
        calc(
            58px
            + env(
                safe-area-inset-top,
                0px
            )
        );

    align-items: center;

    gap: 10px;

    padding:
        calc(
            8px
            + env(
                safe-area-inset-top,
                0px
            )
        )
        max(
            14px,
            env(
                safe-area-inset-right,
                0px
            )
        )
        8px
        max(
            14px,
            env(
                safe-area-inset-left,
                0px
            )
        );

    box-sizing: border-box;
}


.auth-header h1 {
    min-width: 0;

    margin: 0;

    overflow: hidden;

    color: var(--text);

    font-size:
        clamp(
            1.05rem,
            5vw,
            1.3rem
        );

    font-weight: 780;
    line-height: 1.25;

    text-overflow: ellipsis;
    white-space: nowrap;
}


/* =========================================================
   Кнопка назад
   ========================================================= */

.auth-back-link {
    display: inline-flex;

    width: 44px;
    height: 44px;

    min-width: 44px;
    min-height: 44px;

    flex:
        0
        0
        44px;

    align-items: center;
    justify-content: center;

    padding: 0;

    color: var(--accent);

    background: transparent;

    border:
        1px solid
        transparent;

    border-radius: 14px;

    font-size: 1.5rem;
    line-height: 1;

    text-decoration: none;

    -webkit-tap-highlight-color:
        transparent;

    transition:
        color 0.16s ease,
        background-color 0.16s ease,
        border-color 0.16s ease,
        transform 0.12s ease;
}


.auth-back-link:hover {
    color: var(--text);

    background: var(--surface-hover);

    border-color: var(--border);

    text-decoration: none;
}


.auth-back-link:active {
    transform:
        scale(0.92);
}


.auth-back-link:focus-visible {
    outline:
        3px solid
        color-mix(
            in srgb,
            var(--accent) 62%,
            transparent
        );

    outline-offset: 2px;
}


/* =========================================================
   Контейнер входа
   ========================================================= */

.login-container {
    display: flex;

    width:
        min(
            calc(
                100%
                - 24px
            ),
            var(--login-max-width)
        );

    min-width: 0;

    flex-direction: column;

    gap: 20px;

    margin:
        22px
        auto
        34px;

    padding: 24px;

    box-sizing: border-box;

    background:
        color-mix(
            in srgb,
            var(--surface) 96%,
            transparent
        );

    border:
        1px solid
        var(--login-border);

    border-radius: var(--radius);

    box-shadow:
        0
        14px
        38px
        rgba(
            0,
            0,
            0,
            0.26
        );

    backdrop-filter:
        blur(14px);

    -webkit-backdrop-filter:
        blur(14px);
}


.login-container [hidden] {
    display: none !important;
}


/* =========================================================
   Вступительный блок
   ========================================================= */

.login-intro {
    display: flex;

    min-width: 0;

    flex-direction: column;

    align-items: center;

    gap: 8px;

    text-align: center;
}


.login-icon {
    display: inline-flex;

    width: 76px;
    height: 76px;

    flex:
        0
        0
        76px;

    align-items: center;
    justify-content: center;

    margin-bottom: 4px;

    color: var(--accent);

    background:
        color-mix(
            in srgb,
            var(--accent) 11%,
            var(--surface-hover)
        );

    border:
        1px solid
        color-mix(
            in srgb,
            var(--accent) 38%,
            transparent
        );

    border-radius: 50%;

    box-shadow:
        0
        12px
        28px
        color-mix(
            in srgb,
            var(--accent) 12%,
            transparent
        );

    font-size: 2rem;
    line-height: 1;

    user-select: none;
}


.login-intro h2 {
    margin: 0;

    color: var(--accent);

    font-size:
        clamp(
            1.2rem,
            5vw,
            1.5rem
        );

    line-height: 1.3;
}


.login-intro p {
    max-width: 390px;

    margin: 0;

    color: var(--muted);

    font-size: 0.9rem;
    line-height: 1.5;

    overflow-wrap: anywhere;
}


/* =========================================================
   Форма входа
   ========================================================= */

.login-form {
    display: flex;

    min-width: 0;

    flex-direction: column;

    gap: 15px;
}


.login-form .form-group {
    display: flex;

    min-width: 0;

    flex-direction: column;

    gap: 7px;

    margin: 0;
}


.login-form label {
    color: var(--text);

    font-size: 0.9rem;
    font-weight: 650;
    line-height: 1.35;
}


.login-form input {
    width: 100%;
    min-width: 0;
    min-height: 50px;

    padding:
        11px
        13px;

    box-sizing: border-box;

    color: var(--text);

    background:
        var(--bg);

    border:
        1px solid
        var(--login-field-border);

    border-radius:
        var(--radius-sm);

    font: inherit;
    font-size: 1rem;
    line-height: 1.4;

    outline: none;

    transition:
        border-color 0.16s ease,
        background-color 0.16s ease,
        box-shadow 0.16s ease;
}


.login-form input::placeholder {
    color:
        color-mix(
            in srgb,
            var(--muted) 80%,
            transparent
        );
}


.login-form input:hover:not(:disabled) {
    border-color:
        color-mix(
            in srgb,
            var(--accent) 32%,
            var(--login-field-border)
        );
}


.login-form input:focus-visible {
    background:
        var(--surface-hover);

    border-color:
        var(--accent);

    box-shadow:
        0
        0
        0
        3px
        color-mix(
            in srgb,
            var(--accent) 24%,
            transparent
        );
}


.login-form input[aria-invalid="true"],
.login-form input:user-invalid {
    border-color:
        color-mix(
            in srgb,
            var(--danger) 68%,
            var(--login-field-border)
        );
}


.login-form input[aria-invalid="true"]:focus-visible,
.login-form input:user-invalid:focus-visible {
    box-shadow:
        0
        0
        0
        3px
        color-mix(
            in srgb,
            var(--danger) 20%,
            transparent
        );
}


.login-form input:disabled {
    opacity: 0.64;

    cursor: wait;
}


/* =========================================================
   Заголовок поля пароля
   ========================================================= */

.login-password-heading {
    display: flex;

    min-width: 0;

    align-items: center;
    justify-content: space-between;

    gap: 12px;
}


.login-password-heading label {
    min-width: 0;
}


.login-password-recovery-link {
    display: inline-flex;

    flex:
        0
        0
        auto;

    align-items: center;

    min-height: 32px;

    padding:
        2px
        4px;

    color: var(--accent);

    border-radius: 6px;

    font-size: 0.78rem;
    font-weight: 650;
    line-height: 1.3;

    text-align: right;
    text-decoration: none;
}


.login-password-recovery-link:hover {
    text-decoration: underline;

    text-underline-offset: 3px;
}


.login-password-recovery-link:focus-visible {
    outline:
        3px solid
        color-mix(
            in srgb,
            var(--accent) 58%,
            transparent
        );

    outline-offset: 2px;
}


/* =========================================================
   Поле пароля
   ========================================================= */

.login-password-wrapper {
    position: relative;

    display: flex;

    min-width: 0;

    align-items: stretch;
}


.login-password-wrapper
#login-password {
    padding-right: 58px;
}


.login-toggle-password {
    position: absolute;

    top: 50%;
    right: 4px;

    display: inline-flex;

    width: 44px;
    height: 42px;

    align-items: center;
    justify-content: center;

    padding: 0;

    color: var(--muted);

    background: transparent;

    border: 0;
    border-radius: 9px;

    font: inherit;
    font-size: 1.05rem;
    line-height: 1;

    cursor: pointer;

    transform:
        translateY(-50%);

    -webkit-tap-highlight-color:
        transparent;

    transition:
        color 0.16s ease,
        background-color 0.16s ease,
        transform 0.12s ease;
}


.login-toggle-password:hover {
    color: var(--text);

    background:
        color-mix(
            in srgb,
            var(--surface-hover) 82%,
            transparent
        );
}


.login-toggle-password:active {
    transform:
        translateY(-50%)
        scale(0.92);
}


.login-toggle-password:focus-visible {
    outline:
        3px solid
        color-mix(
            in srgb,
            var(--accent) 58%,
            transparent
        );

    outline-offset: 1px;
}


.login-toggle-password:disabled {
    opacity: 0.5;

    cursor: not-allowed;
}


/* =========================================================
   Ошибки
   ========================================================= */

.login-form .field-error,
.login-form-error {
    margin: 0;

    color:
        color-mix(
            in srgb,
            var(--danger) 86%,
            var(--text)
        );

    font-size: 0.82rem;
    line-height: 1.4;

    overflow-wrap: anywhere;
}


.login-form .field-error:empty,
.login-form-error:empty {
    display: none;
}


.login-form .field-error:not(:empty) {
    padding:
        7px
        9px;

    background:
        color-mix(
            in srgb,
            var(--danger) 7%,
            var(--surface)
        );

    border-left:
        3px solid
        color-mix(
            in srgb,
            var(--danger) 70%,
            transparent
        );

    border-radius:
        0
        var(--radius-sm)
        var(--radius-sm)
        0;
}


.login-form-error:not(:empty) {
    padding:
        10px
        12px;

    background:
        color-mix(
            in srgb,
            var(--danger) 8%,
            var(--surface)
        );

    border:
        1px solid
        color-mix(
            in srgb,
            var(--danger) 42%,
            transparent
        );

    border-radius:
        var(--radius-sm);

    text-align: center;
}


/* =========================================================
   Успешный вход
   ========================================================= */

.login-success {
    margin: 0;

    padding:
        11px
        12px;

    color: var(--accent);

    background:
        color-mix(
            in srgb,
            var(--accent) 10%,
            var(--surface)
        );

    border:
        1px solid
        color-mix(
            in srgb,
            var(--accent) 42%,
            transparent
        );

    border-radius:
        var(--radius-sm);

    font-size: 0.88rem;
    font-weight: 650;
    line-height: 1.45;

    text-align: center;

    overflow-wrap: anywhere;
}


/* =========================================================
   Кнопка входа
   ========================================================= */

.login-submit-button {
    position: relative;

    display: inline-flex;

    width: 100%;
    min-height: 52px;

    align-items: center;
    justify-content: center;

    gap: 10px;

    box-sizing: border-box;

    font-size: 1rem;
    font-weight: 750;
}


.login-submit-button__text {
    display: inline-block;
}


.login-submit-button__loader {
    width: 18px;
    height: 18px;

    flex:
        0
        0
        18px;

    border:
        2px solid
        color-mix(
            in srgb,
            currentColor 32%,
            transparent
        );

    border-top-color:
        currentColor;

    border-radius: 50%;

    animation:
        login-button-spin
        0.72s
        linear
        infinite;
}


.login-submit-button[aria-busy="true"] {
    cursor: wait;
}


.login-submit-button:disabled {
    opacity: 0.62;

    cursor: wait;

    transform: none;
}


@keyframes login-button-spin {
    to {
        transform:
            rotate(360deg);
    }
}


/* =========================================================
   Восстановление доступа
   ========================================================= */

.login-recovery-section {
    display: flex;

    min-width: 0;

    flex-direction: column;

    gap: 13px;

    padding: 16px;

    background:
        color-mix(
            in srgb,
            var(--surface-hover) 70%,
            transparent
        );

    border:
        1px solid
        color-mix(
            in srgb,
            var(--muted) 18%,
            transparent
        );

    border-radius:
        var(--radius-sm);
}


.login-recovery-help {
    display: flex;

    min-width: 0;

    flex-direction: column;

    align-items: center;

    gap: 5px;

    text-align: center;
}


.login-recovery-help p {
    margin: 0;

    color: var(--muted);

    font-size: 0.78rem;
    line-height: 1.45;

    overflow-wrap: anywhere;
}


/* =========================================================
   Текстовая ссылка
   ========================================================= */

.login-text-link {
    display: inline-flex;

    min-height: 40px;

    align-items: center;
    justify-content: center;

    padding:
        2px
        6px;

    color: var(--accent);

    border-radius: 6px;

    font-size: 0.87rem;
    font-weight: 650;

    text-align: center;
    text-decoration: none;
}


.login-text-link:hover {
    text-decoration: underline;

    text-underline-offset: 3px;
}


.login-text-link:focus-visible {
    outline:
        3px solid
        color-mix(
            in srgb,
            var(--accent) 60%,
            transparent
        );

    outline-offset: 2px;
}


/* =========================================================
   Регистрация
   ========================================================= */

.login-secondary-actions {
    display: flex;

    min-width: 0;

    flex-direction: column;

    align-items: center;

    gap: 10px;

    text-align: center;
}


.login-divider {
    position: relative;

    display: flex;

    width: 100%;

    align-items: center;
    justify-content: center;

    margin:
        3px
        0;
}


.login-divider::before {
    position: absolute;

    right: 0;
    left: 0;

    height: 1px;

    background:
        color-mix(
            in srgb,
            var(--muted) 20%,
            transparent
        );

    content: "";
}


.login-divider span {
    position: relative;

    padding:
        0
        10px;

    color: var(--muted);

    background:
        var(--surface);

    font-size: 0.74rem;
    line-height: 1;
}


.login-secondary-actions > p {
    margin: 0;

    color: var(--muted);

    font-size: 0.84rem;
    line-height: 1.4;
}


.login-register-button {
    display: inline-flex;

    width: 100%;
    min-height: 48px;

    align-items: center;
    justify-content: center;

    box-sizing: border-box;

    text-decoration: none;
}


.login-register-button:hover {
    text-decoration: none;
}


/* =========================================================
   Юридические ссылки
   ========================================================= */

.login-legal {
    display: flex;

    flex-direction: column;

    gap: 8px;

    padding-top: 15px;

    border-top:
        1px solid
        color-mix(
            in srgb,
            var(--muted) 16%,
            transparent
        );

    text-align: center;
}


.login-legal p {
    margin: 0;

    color: var(--muted);

    font-size: 0.72rem;
    line-height: 1.45;

    overflow-wrap: anywhere;
}


.login-legal-links {
    display: flex;

    flex-wrap: wrap;

    align-items: center;
    justify-content: center;

    gap:
        5px
        13px;
}


.login-legal-links a {
    display: inline-flex;

    min-height: 36px;

    align-items: center;

    padding:
        0
        2px;

    color: var(--accent);

    border-radius: 5px;

    font-size: 0.74rem;

    text-decoration: none;
}


.login-legal-links a:hover {
    text-decoration: underline;

    text-underline-offset: 3px;
}


.login-legal-links a:focus-visible {
    outline:
        3px solid
        color-mix(
            in srgb,
            var(--accent) 58%,
            transparent
        );

    outline-offset: 2px;
}


/* =========================================================
   JavaScript отключён
   ========================================================= */

.login-noscript {
    padding:
        11px
        12px;

    color:
        color-mix(
            in srgb,
            var(--danger) 86%,
            var(--text)
        );

    background:
        color-mix(
            in srgb,
            var(--danger) 8%,
            var(--surface)
        );

    border:
        1px solid
        color-mix(
            in srgb,
            var(--danger) 42%,
            transparent
        );

    border-radius:
        var(--radius-sm);

    font-size: 0.84rem;
    line-height: 1.45;

    text-align: center;
}


/* =========================================================
   Общие отключённые состояния
   ========================================================= */

.login-container button:disabled,
.login-container .btn:disabled {
    opacity: 0.62;

    cursor: not-allowed;

    transform: none;
}


/* =========================================================
   Планшеты и десктоп
   ========================================================= */

@media (min-width: 600px) {
    .login-container {
        margin-top: 40px;

        padding:
            30px
            32px;
    }


    .login-register-button {
        width: auto;
        min-width: 250px;
    }
}


/* =========================================================
   Мобильные устройства
   ========================================================= */

@media (max-width: 599px) {
    .login-container {
        width:
            calc(
                100%
                - 20px
            );

        margin-top: 14px;

        padding:
            20px
            16px
            calc(
                22px
                + env(
                    safe-area-inset-bottom,
                    0px
                )
            );
    }


    .login-icon {
        width: 68px;
        height: 68px;

        flex-basis: 68px;

        font-size: 1.8rem;
    }


    .login-recovery-section {
        padding:
            14px
            12px;
    }
}


/* =========================================================
   Маленькие телефоны
   ========================================================= */

@media (max-width: 360px) {
    .login-container {
        width:
            calc(
                100%
                - 14px
            );

        padding-right: 12px;
        padding-left: 12px;
    }


    .login-intro p {
        font-size: 0.85rem;
    }


    .login-recovery-help p {
        font-size: 0.74rem;
    }


    .login-password-heading {
        align-items: flex-start;

        flex-direction: column;

        gap: 2px;
    }


    .login-password-recovery-link {
        align-self: flex-end;

        min-height: 28px;
    }
}


/* =========================================================
   Низкий горизонтальный экран
   ========================================================= */

@media (
    max-width: 768px
) and (
    orientation: landscape
) and (
    max-height: 500px
) {
    .login-container {
        max-width: 640px;

        margin-top: 8px;
        margin-bottom: 12px;

        padding:
            16px
            20px;
    }


    .login-intro {
        display: grid;

        grid-template-columns:
            auto
            minmax(
                0,
                1fr
            );

        text-align: left;
    }


    .login-icon {
        grid-row:
            1
            /
            span 2;

        width: 58px;
        height: 58px;

        flex-basis: 58px;

        font-size: 1.5rem;
    }


    .login-intro h2,
    .login-intro p {
        grid-column: 2;
    }
}


/* =========================================================
   Уменьшение анимации
   ========================================================= */

@media (
    prefers-reduced-motion: reduce
) {
    .auth-back-link,
    .login-form input,
    .login-toggle-password {
        transition: none;
    }


    .login-submit-button__loader {
        animation: none;
    }
}


/* =========================================================
   Печать
   ========================================================= */

@media print {
    .auth-header,
    .login-recovery-section,
    .login-secondary-actions,
    .login-submit-button {
        display: none !important;
    }


    .login-container {
        width: 100%;
        max-width: none;

        margin: 0;
        padding: 0;

        border: 0;

        box-shadow: none;
    }
}