/* =========================================================
   ADMIN RAIL — правая панель быстрых действий (admin/moderator)
   и плашка режима «смотреть как гость».
   Широкий экран: третья колонка сетки .layout. Узкий/мобильный:
   выезжающая справа шторка с круглой кнопкой.
   ========================================================= */

:root {
    --rail-width: 256px;
}

.admin-rail,
.admin-rail-fab,
.admin-rail-backdrop {
    display: none;
}

.admin-rail[hidden],
.admin-rail-fab[hidden] {
    display: none !important;
}

/* ---- Шторка (по умолчанию) ---- */

.layout.has-admin-rail .admin-rail {
    display: flex;
    flex-direction: column;
    gap: 10px;

    position: fixed;
    z-index: 112;
    top: 0;
    right: 0;
    bottom: 0;

    width: min(300px, 88vw);
    padding: 14px 12px 28px;

    background: var(--surface);
    border-left: 1px solid var(--border);
    box-shadow: var(--shadow);

    overflow-y: auto;
    overscroll-behavior: contain;

    transform: translateX(105%);
    visibility: hidden;
    transition: transform .28s cubic-bezier(.2, .8, .2, 1), visibility 0s linear .28s;
}

.layout.has-admin-rail .admin-rail.open {
    transform: translateX(0);
    visibility: visible;
    transition: transform .28s cubic-bezier(.2, .8, .2, 1), visibility 0s;
}

.layout.has-admin-rail .admin-rail-backdrop {
    display: block;

    position: fixed;
    inset: 0;
    z-index: 111;

    background: rgba(0, 0, 0, .5);

    opacity: 0;
    pointer-events: none;
    transition: opacity .28s ease;
}

.layout.has-admin-rail .admin-rail-backdrop.open {
    opacity: 1;
    pointer-events: auto;
}

.layout.has-admin-rail .admin-rail-fab {
    display: grid;
    place-items: center;

    position: fixed;
    z-index: 104;
    right: 18px;
    bottom: 22px;

    width: 52px;
    height: 52px;

    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 50%;

    background: linear-gradient(145deg, var(--accent), var(--accent-fill));
    color: #fff;

    box-shadow: 0 8px 22px rgba(0, 0, 0, .35), 0 0 0 4px var(--accent-soft);
    cursor: pointer;

    transition: transform .18s ease, box-shadow .18s ease;
}

.admin-rail-fab svg {
    width: 22px;
    height: 22px;
}

.admin-rail-fab:hover {
    transform: translateY(-2px);
}

.admin-rail-fab:active {
    transform: scale(.94);
}

@media (max-width: 780px), (max-height: 599px), (orientation: portrait) {
    .layout.has-admin-rail .admin-rail-fab {
        bottom: calc(var(--tabbar-height) + 16px + env(safe-area-inset-bottom, 0px));
        right: 14px;
        width: 48px;
        height: 48px;
    }
}

/* ---- Карточки панели ---- */

.rail-card {
    padding: 10px 8px;

    border: 1px solid var(--border-light);
    border-radius: var(--radius);

    background: var(--card);
}

.rail-body {
    display: flex;
    flex-direction: column;
}

.rail-view {
    flex-shrink: 0;
}

.rail-head {
    display: flex;
    align-items: center;
    gap: 10px;

    padding: 12px 10px;

    background:
        linear-gradient(135deg, var(--accent-soft), transparent 72%),
        var(--card);
}

.rail-head-icon {
    width: 34px;
    height: 34px;
    flex-shrink: 0;

    display: grid;
    place-items: center;

    border-radius: 9px;

    background: linear-gradient(145deg, var(--accent), var(--accent-fill));
    color: #fff;

    box-shadow: 0 4px 12px var(--accent-soft);
}

.rail-head-icon svg {
    width: 18px;
    height: 18px;
}

.rail-head-text {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.rail-head-text strong {
    color: var(--text);

    font-size: 13px;
    font-weight: 700;
    white-space: nowrap;
}

.rail-role {
    color: var(--accent);

    font-size: 10px;
    font-weight: 700;
    letter-spacing: .9px;
    text-transform: uppercase;
}

.rail-collapse {
    display: none;

    width: 28px;
    height: 28px;
    margin-left: auto;
    flex-shrink: 0;

    place-items: center;

    border: 0;
    border-radius: 8px;

    background: transparent;
    color: var(--text-muted);

    cursor: pointer;

    transition: background .18s ease, color .18s ease, transform .22s ease;
}

.rail-collapse svg {
    width: 16px;
    height: 16px;
}

.rail-collapse:hover {
    background: var(--card-hover);
    color: var(--text);
}

.rail-group + .rail-group {
    margin-top: 10px;
    padding-top: 10px;

    border-top: 1px solid var(--border);
}

.rail-title {
    margin: 0 3px 7px;

    color: var(--accent);

    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1.1px;
    text-transform: uppercase;
}

.rail-link {
    position: relative;

    min-height: 37px;

    display: flex;
    align-items: center;
    gap: 10px;

    padding: 0 9px;

    border-radius: 8px;

    color: var(--text-secondary);

    font-size: 12px;
    font-weight: 600;

    transition: background .18s ease, color .18s ease, transform .18s ease;
}

.rail-link:hover {
    background: var(--card-hover);
    color: var(--text);
}

.rail-link.active {
    background: var(--nav-active-bg);
    color: var(--text);
}

.rail-link.active::before,
.rail-link.active::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    width: 8px;
    box-sizing: border-box;
    pointer-events: none;
}

.rail-link.active::before {
    left: 0;
    border-left: 2px solid var(--accent);
    border-radius: 8px 0 0 8px;
}

.rail-link.active::after {
    right: 0;
    border-right: 2px solid var(--accent);
    border-radius: 0 8px 8px 0;
}

.rail-icon {
    width: 17px;
    height: 17px;
    flex-shrink: 0;

    display: grid;
    place-items: center;
}

.rail-icon svg {
    width: 17px;
    height: 17px;
}

.rail-badge[hidden] {
    display: none;
}

/* ---- Переключатель «смотреть как гость» ---- */

.rail-switch {
    width: 100%;

    display: flex;
    align-items: flex-start;
    gap: 10px;

    padding: 8px 6px;

    border: 0;
    border-radius: 8px;

    background: transparent;
    color: var(--text-secondary);

    font: inherit;
    text-align: left;
    cursor: pointer;

    transition: background .18s ease;
}

.rail-switch:hover {
    background: var(--card-hover);
}

.rail-switch-track {
    width: 36px;
    height: 20px;
    margin-top: 1px;
    flex-shrink: 0;

    position: relative;

    border-radius: 10px;

    background: var(--input-border);

    transition: background .2s ease;
}

.rail-switch-track i {
    position: absolute;
    top: 3px;
    left: 3px;

    width: 14px;
    height: 14px;

    border-radius: 50%;

    background: #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, .35);

    transition: transform .2s ease;
}

.rail-switch[aria-checked="true"] .rail-switch-track {
    background: var(--accent-fill);
}

.rail-switch[aria-checked="true"] .rail-switch-track i {
    transform: translateX(16px);
}

.rail-switch-text {
    display: flex;
    flex-direction: column;
    gap: 3px;
    min-width: 0;
}

.rail-switch-text b {
    color: var(--text);

    font-size: 12px;
    font-weight: 700;
}

.rail-switch-text small {
    color: var(--text-muted);

    font-size: 11px;
    line-height: 1.4;
}

/* ---- Широкий экран: панель — третья колонка ---- */

@media (min-width: 1240px) and (min-height: 600px) and (orientation: landscape) {
    .layout.has-admin-rail {
        grid-template-columns: var(--sidebar-width) minmax(0, 1fr) var(--rail-width);
    }

    .layout.has-admin-rail.rail-collapsed {
        --rail-width: 72px;
    }

    .layout.has-admin-rail .admin-rail {
        position: sticky;
        top: var(--header-height);
        z-index: auto;

        align-self: start;
        width: auto;
        max-height: calc(100vh - var(--header-height));
        padding: 12px 12px 30px;

        background: transparent;
        border-left: 1px solid var(--border);
        box-shadow: none;

        transform: none;
        visibility: visible;
        transition: none;

        animation: rail-in .45s cubic-bezier(.2, .8, .2, 1) both;
    }

    .layout.has-admin-rail .admin-rail-fab,
    .layout.has-admin-rail .admin-rail-backdrop {
        display: none;
    }

    .rail-collapse {
        display: grid;
    }

    /* Свёрнутая панель: остаются только значки */
    .admin-rail.is-collapsed {
        padding-left: 8px;
        padding-right: 8px;
    }

    .admin-rail.is-collapsed .rail-head {
        flex-direction: column;
        padding: 10px 4px;
    }

    .admin-rail.is-collapsed .rail-head-text,
    .admin-rail.is-collapsed .rail-label,
    .admin-rail.is-collapsed .rail-title,
    .admin-rail.is-collapsed .rail-switch-text {
        display: none;
    }

    .admin-rail.is-collapsed .rail-collapse {
        margin-left: 0;
        transform: rotate(180deg);
    }

    .admin-rail.is-collapsed .rail-link,
    .admin-rail.is-collapsed .rail-switch {
        justify-content: center;
        padding-left: 0;
        padding-right: 0;
    }

    .admin-rail.is-collapsed .rail-badge {
        position: absolute;
        top: 2px;
        right: 2px;
        padding: 1px 5px;
    }

    .admin-rail.is-collapsed .rail-switch-track {
        margin-top: 0;
    }
}

@keyframes rail-in {
    from { opacity: 0; transform: translateX(16px); }
    to { opacity: 1; transform: none; }
}

/* ---- Режим гостя ---- */

html.guest-preview body::before {
    content: "";
    position: fixed;
    z-index: 130;
    top: 0;
    left: 0;
    right: 0;

    height: 3px;

    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    pointer-events: none;
}

.guest-preview-pill {
    position: fixed;
    z-index: 130;
    left: 0;
    right: 0;
    bottom: 22px;

    width: max-content;
    max-width: calc(100vw - 24px);
    margin: 0 auto;

    display: flex;
    align-items: center;
    gap: 12px;

    padding: 8px 8px 8px 14px;

    border: 1px solid var(--border);
    border-radius: 999px;

    background: color-mix(in srgb, var(--surface) 92%, transparent);
    backdrop-filter: blur(14px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, .4), 0 0 0 3px var(--accent-soft);

    animation: guest-pill-in .4s cubic-bezier(.2, .8, .2, 1) both;
}

.guest-preview-eye {
    width: 28px;
    height: 28px;
    flex-shrink: 0;

    display: grid;
    place-items: center;

    border-radius: 50%;

    background: var(--accent-soft);
    color: var(--accent);
}

.guest-preview-eye svg {
    width: 16px;
    height: 16px;
}

.guest-preview-text {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 1px;
}

.guest-preview-text strong {
    color: var(--text);

    font-size: 12px;
    font-weight: 700;
    white-space: nowrap;
}

.guest-preview-text small {
    color: var(--text-muted);

    font-size: 11px;
    white-space: nowrap;
}

.guest-preview-exit {
    flex-shrink: 0;

    min-height: 34px;
    padding: 0 14px;

    border: 0;
    border-radius: 999px;

    background: linear-gradient(145deg, var(--accent), var(--accent-fill));
    color: #fff;

    font: inherit;
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;

    transition: filter .18s ease, transform .18s ease;
}

.guest-preview-exit:hover {
    filter: brightness(1.12);
}

.guest-preview-exit:active {
    transform: scale(.96);
}

@keyframes guest-pill-in {
    from { opacity: 0; transform: translateY(18px); }
    to { opacity: 1; transform: none; }
}

@media (max-width: 780px), (max-height: 599px), (orientation: portrait) {
    .guest-preview-pill {
        bottom: calc(var(--tabbar-height) + 12px + env(safe-area-inset-bottom, 0px));
        gap: 8px;
        padding-left: 10px;
    }

    .guest-preview-text small {
        display: none;
    }
}

@media (prefers-reduced-motion: reduce) {
    .layout.has-admin-rail .admin-rail,
    .layout.has-admin-rail .admin-rail-backdrop,
    .guest-preview-pill,
    .rn-overlay,
    .rn-card {
        animation: none;
        transition-duration: 0s;
    }
}

/* =========================================================
   Окно «Сменить ник» (renameUserModal.js)
   ========================================================= */

.rn-overlay {
    position: fixed;
    inset: 0;
    z-index: 140;

    display: grid;
    place-items: center;

    padding: 16px;

    background: rgba(0, 0, 0, .55);
    backdrop-filter: blur(4px);

    animation: rn-fade .18s ease both;
}

.rn-overlay.is-leaving {
    opacity: 0;
    transition: opacity .16s ease;
}

.rn-card {
    width: min(460px, 100%);
    max-height: calc(100vh - 32px);
    overflow-y: auto;

    display: flex;
    flex-direction: column;
    gap: 14px;

    padding: 20px;

    border: 1px solid var(--border);
    border-radius: 14px;

    background: var(--surface);
    box-shadow: 0 24px 60px rgba(0, 0, 0, .5);

    animation: rn-pop .26s cubic-bezier(.2, .8, .2, 1) both;
}

.rn-head {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.rn-icon {
    width: 38px;
    height: 38px;
    flex-shrink: 0;

    display: grid;
    place-items: center;

    border-radius: 10px;

    background: linear-gradient(145deg, var(--accent), var(--accent-fill));
    color: #fff;
}

.rn-icon svg {
    width: 19px;
    height: 19px;
}

.rn-head-text {
    min-width: 0;
    flex: 1;
}

.rn-head-text h3 {
    margin: 0 0 3px;

    color: var(--text);

    font-size: 16px;
    font-weight: 700;
}

.rn-head-text p {
    margin: 0;

    color: var(--text-muted);

    font-size: 12px;
    overflow-wrap: anywhere;
}

.rn-head-text b {
    color: var(--text-secondary);
}

.rn-x {
    width: 30px;
    height: 30px;
    flex-shrink: 0;

    border: 0;
    border-radius: 8px;

    background: transparent;
    color: var(--text-muted);

    font-size: 22px;
    line-height: 1;
    cursor: pointer;

    transition: background .18s ease, color .18s ease;
}

.rn-x:hover {
    background: var(--card-hover);
    color: var(--text);
}

.rn-field {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.rn-field > span {
    color: var(--text-secondary);

    font-size: 12px;
    font-weight: 700;
}

.rn-field > span em {
    color: var(--text-muted);

    font-style: normal;
    font-weight: 500;
}

.rn-field input,
.rn-field textarea {
    width: 100%;
    box-sizing: border-box;

    padding: 10px 12px;

    border: 1px solid var(--input-border);
    border-radius: 9px;

    background: var(--input-bg);
    color: var(--input-text);

    font: 500 14px/1.4 Inter, sans-serif;

    transition: border-color .18s ease, box-shadow .18s ease;
}

.rn-field textarea {
    min-height: 78px;
    resize: vertical;
}

.rn-field input:focus-visible,
.rn-field textarea:focus-visible {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.rn-field .is-invalid {
    border-color: var(--danger);
}

.rn-field small {
    color: var(--text-muted);

    font-size: 11px;
}

.rn-count {
    align-self: flex-end;
}

.rn-note {
    display: flex;
    align-items: flex-start;
    gap: 9px;

    padding: 10px 12px;

    border-radius: 9px;

    background: var(--accent-soft);
    color: var(--text-secondary);

    font-size: 12px;
    line-height: 1.45;
}

.rn-note svg {
    width: 16px;
    height: 16px;
    margin-top: 1px;
    flex-shrink: 0;

    color: var(--accent);
}

.rn-error {
    min-height: 0;

    color: var(--danger);

    font-size: 12px;
    font-weight: 600;
}

.rn-error:empty {
    display: none;
}

.rn-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.rn-btn {
    min-height: 38px;
    padding: 0 16px;

    border: 1px solid var(--border);
    border-radius: 9px;

    background: var(--card);
    color: var(--text);

    font: inherit;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;

    transition: filter .18s ease, transform .18s ease, border-color .18s ease;
}

.rn-btn:hover:not(:disabled) {
    border-color: var(--border-light);
    filter: brightness(1.12);
}

.rn-btn:active:not(:disabled) {
    transform: scale(.97);
}

.rn-btn:disabled {
    opacity: .6;
    cursor: wait;
}

.rn-btn.rn-primary {
    border-color: transparent;

    background: linear-gradient(145deg, var(--accent), var(--accent-fill));
    color: #fff;
}

@media (max-width: 520px) {
    .rn-overlay {
        place-items: end center;
        padding: 0;
    }

    .rn-card {
        width: 100%;
        max-height: 92vh;

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

    /* 16px в полях: iOS не масштабирует страницу при фокусе */
    .rn-field input,
    .rn-field textarea {
        font-size: 16px;
    }

    .rn-btn {
        flex: 1;
        min-height: 44px;
    }
}

@keyframes rn-fade {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes rn-pop {
    from { opacity: 0; transform: translateY(12px) scale(.97); }
    to { opacity: 1; transform: none; }
}