/*
 * Страница входа в административную панель.
 *
 * Не использует базовый layout админки,
 * поскольку пользователь ещё не авторизован.
 */


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

.admin-login-body {
    min-width: 320px;
    min-height: 100dvh;

    margin: 0;

    background:
        radial-gradient(
            circle at 15% 15%,
            color-mix(
                in srgb,
                var(--accent) 13%,
                transparent
            ),
            transparent 34%
        ),
        radial-gradient(
            circle at 85% 85%,
            color-mix(
                in srgb,
                #8b6cff 10%,
                transparent
            ),
            transparent 36%
        ),
        var(--bg);

    color: var(--text);
}


.admin-login-page {
    display: flex;

    min-height: 100dvh;

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

    padding:
        32px
        18px
        calc(
            32px
            + env(
                safe-area-inset-bottom,
                0px
            )
        );

    box-sizing: border-box;
}


/* =========================================================
   Карточка
   ========================================================= */

.admin-login-card {
    display: flex;
    flex-direction: column;

    width: min(
        100%,
        470px
    );

    min-width: 0;

    gap: 20px;

    padding:
        30px;

    box-sizing: border-box;

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

    border:
        1px solid
        color-mix(
            in srgb,
            var(--muted) 19%,
            transparent
        );

    border-radius:
        clamp(
            18px,
            4vw,
            26px
        );

    box-shadow:
        0 24px 70px
        rgba(0, 0, 0, 0.24);

    backdrop-filter:
        blur(18px);
}


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

.admin-login-header {
    display: flex;
    flex-direction: column;

    align-items: center;

    min-width: 0;

    text-align: center;
}


.admin-login-icon {
    display: inline-flex;

    width: 70px;
    height: 70px;

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

    margin-bottom: 15px;

    background:
        linear-gradient(
            145deg,
            color-mix(
                in srgb,
                var(--accent) 18%,
                var(--surface-hover)
            ),
            color-mix(
                in srgb,
                #8b6cff 10%,
                var(--surface)
            )
        );

    color: var(--accent);

    border:
        1px solid
        color-mix(
            in srgb,
            var(--accent) 36%,
            transparent
        );

    border-radius: 22px;

    box-shadow:
        0 14px 30px
        color-mix(
            in srgb,
            var(--accent) 14%,
            transparent
        );

    font-size: 1.65rem;
    line-height: 1;

    user-select: none;
}


.admin-login-eyebrow {
    margin:
        0
        0
        5px;

    color: var(--accent);

    font-size: 0.68rem;
    font-weight: 820;
    line-height: 1.35;

    letter-spacing: 0.11em;

    text-transform: uppercase;
}


.admin-login-header h1 {
    margin: 0;

    color: var(--text);

    font-size:
        clamp(
            1.45rem,
            5vw,
            1.9rem
        );

    line-height: 1.25;

    overflow-wrap: anywhere;
}


.admin-login-description {
    max-width: 360px;

    margin:
        9px
        0
        0;

    color: var(--muted);

    font-size: 0.8rem;
    line-height: 1.55;
}


/* =========================================================
   Сообщения
   ========================================================= */

.admin-login-message {
    display: flex;
    flex-direction: column;

    min-width: 0;

    gap: 4px;

    padding:
        13px
        14px;

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

    font-size: 0.77rem;
    line-height: 1.5;

    overflow-wrap: anywhere;
}


.admin-login-message strong {
    font-size: 0.8rem;
    line-height: 1.4;
}


.admin-login-message p {
    margin: 0;
}


.admin-login-message-error {
    background:
        color-mix(
            in srgb,
            var(--danger) 8%,
            var(--surface-hover)
        );

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

    border:
        1px solid
        color-mix(
            in srgb,
            var(--danger) 34%,
            transparent
        );
}


.admin-login-message-info {
    background:
        color-mix(
            in srgb,
            var(--accent) 8%,
            var(--surface-hover)
        );

    color: var(--text);

    border:
        1px solid
        color-mix(
            in srgb,
            var(--accent) 30%,
            transparent
        );
}


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

.admin-login-form {
    display: flex;
    flex-direction: column;

    min-width: 0;

    gap: 15px;

    margin: 0;
}


.admin-login-field {
    display: flex;
    flex-direction: column;

    min-width: 0;

    gap: 7px;
}


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

    font-size: 0.78rem;
    font-weight: 680;
    line-height: 1.4;
}


.admin-login-field input {
    width: 100%;
    min-width: 0;
    min-height: 48px;

    padding:
        11px
        13px;

    box-sizing: border-box;

    background:
        color-mix(
            in srgb,
            var(--bg) 88%,
            var(--surface)
        );

    color: var(--text);

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

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

    font: inherit;
    font-size: 0.9rem;
    line-height: 1.45;

    outline: none;

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


.admin-login-field input::placeholder {
    color:
        color-mix(
            in srgb,
            var(--muted) 72%,
            transparent
        );
}


.admin-login-field input:hover {
    border-color:
        color-mix(
            in srgb,
            var(--muted) 58%,
            transparent
        );
}


.admin-login-field input:focus-visible {
    background: var(--bg);

    border-color: var(--accent);

    box-shadow:
        0 0 0 3px
        color-mix(
            in srgb,
            var(--accent) 27%,
            transparent
        );
}


.admin-login-field input:user-invalid {
    border-color:
        color-mix(
            in srgb,
            var(--danger) 62%,
            transparent
        );
}


.admin-login-submit {
    width: 100%;
    min-height: 49px;

    margin-top: 2px;

    font-size: 0.86rem;
    font-weight: 740;
}


/* =========================================================
   Информация о безопасности
   ========================================================= */

.admin-login-security {
    display: grid;

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

    align-items: flex-start;

    gap: 12px;

    min-width: 0;

    padding:
        14px;

    background:
        color-mix(
            in srgb,
            var(--warning, #d99a00) 6%,
            var(--surface-hover)
        );

    border:
        1px solid
        color-mix(
            in srgb,
            var(--warning, #d99a00) 27%,
            transparent
        );

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


.admin-login-security-icon {
    display: inline-flex;

    width: 40px;
    height: 40px;

    flex: 0 0 40px;

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

    background:
        color-mix(
            in srgb,
            var(--warning, #d99a00) 12%,
            var(--surface)
        );

    color:
        color-mix(
            in srgb,
            var(--warning, #d99a00) 86%,
            var(--text)
        );

    border:
        1px solid
        color-mix(
            in srgb,
            var(--warning, #d99a00) 32%,
            transparent
        );

    border-radius: 13px;

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


.admin-login-security strong {
    display: block;

    margin:
        0
        0
        3px;

    color: var(--text);

    font-size: 0.77rem;
    line-height: 1.4;
}


.admin-login-security p {
    margin: 0;

    color: var(--muted);

    font-size: 0.69rem;
    line-height: 1.48;

    overflow-wrap: anywhere;
}


/* =========================================================
   Нижние ссылки
   ========================================================= */

.admin-login-footer {
    display: flex;
    flex-wrap: wrap;

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

    gap:
        7px
        16px;

    padding-top: 2px;

    text-align: center;
}


.admin-login-footer a {
    color: var(--muted);

    border-radius: 6px;

    font-size: 0.72rem;
    font-weight: 620;
    line-height: 1.4;

    text-decoration: none;

    transition:
        color 0.16s ease;
}


.admin-login-footer a:hover {
    color: var(--accent);

    text-decoration: underline;

    text-underline-offset: 3px;
}


.admin-login-footer a:focus-visible {
    outline:
        3px solid
        color-mix(
            in srgb,
            var(--accent) 52%,
            transparent
        );

    outline-offset: 3px;
}


/* =========================================================
   Маленькие экраны
   ========================================================= */

@media (max-width: 560px) {
    .admin-login-page {
        align-items: flex-start;

        padding:
            16px
            10px
            calc(
                20px
                + env(
                    safe-area-inset-bottom,
                    0px
                )
            );
    }


    .admin-login-card {
        gap: 17px;

        padding:
            23px
            17px;

        border-radius: 20px;
    }


    .admin-login-icon {
        width: 62px;
        height: 62px;

        border-radius: 19px;

        font-size: 1.45rem;
    }
}


/* =========================================================
   Очень маленькие экраны
   ========================================================= */

@media (max-width: 370px) {
    .admin-login-page {
        padding-left: 6px;
        padding-right: 6px;
    }


    .admin-login-card {
        padding:
            21px
            13px;
    }


    .admin-login-security {
        grid-template-columns: 1fr;

        justify-items: center;

        text-align: center;
    }


    .admin-login-footer {
        flex-direction: column;
    }
}


/* =========================================================
   Горизонтальная ориентация
   ========================================================= */

@media (
    max-height: 650px
) and (
    orientation: landscape
) {
    .admin-login-page {
        align-items: flex-start;

        padding-top: 14px;
        padding-bottom: 14px;
    }


    .admin-login-card {
        gap: 14px;

        padding:
            20px
            24px;
    }


    .admin-login-icon {
        width: 54px;
        height: 54px;

        margin-bottom: 10px;

        border-radius: 17px;
    }
}


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

@media print {
    .admin-login-body {
        background: #ffffff;
    }


    .admin-login-page {
        display: block;

        min-height: auto;

        padding: 0;
    }


    .admin-login-card {
        width: 100%;

        border: 1px solid #cccccc;

        box-shadow: none;
    }


    .admin-login-form,
    .admin-login-footer {
        display: none;
    }
}


/* =========================================================
   Reduced motion
   ========================================================= */

@media (
    prefers-reduced-motion: reduce
) {
    .admin-login-field input,
    .admin-login-footer a {
        transition: none;
    }
}


/* =========================================================
   Мобильная надёжность формы входа
   ========================================================= */

@media (max-width: 560px) {
    .admin-login-page {
        min-height: 100dvh;

        padding-left:
            max(
                10px,
                env(safe-area-inset-left)
            );

        padding-right:
            max(
                10px,
                env(safe-area-inset-right)
            );

        padding-bottom:
            max(
                14px,
                env(safe-area-inset-bottom)
            );
    }


    /*
     * Safari не увеличивает страницу при фокусе,
     * когда размер текста поля не меньше 16px.
     */
    .admin-login-field input {
        font-size: 1rem;
    }


    .admin-login-submit {
        min-height: 48px;

        touch-action: manipulation;
    }


    .admin-login-footer a {
        min-height: 44px;

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

        touch-action: manipulation;
    }
}