:root {
    color-scheme: dark;
    --web-bg: #121212;
    --web-bg-header: #1a1a1a;
    --web-bg-card: #1e1e1e;
    --web-bg-sunken: #181818;
    --web-bg-nav: #111;
    --web-bg-drop-hover: #17301a;
    --web-border: #333;
    --web-border-subtle: #2a2a2a;
    --web-border-dashed: #555;
    --web-text: #eee;
    --web-text-muted: #999;
    --web-text-soft: #bbb;
    --web-text-nav: #bbb;
    --web-link: #81c784;
    --web-accent: #2e7d32;
    --web-accent-2: #66bb6a;
    --web-ghost-bg: #2a2a2a;
    --web-ghost-fg: #ddd;
    --web-ghost-hover: #3a3a3a;
    --web-nav-hover: #2a2a2a;
    --web-disabled: #444;
    --web-danger-border: #8d2f2f;
    --web-table-border: #3a3a3a;
    --web-table-th: #252525;
    --web-table-td: #181818;
    --web-analyze-h: #ccc;
    --web-progress-bg: #2a2a2a;
    --web-input-bg: #111;
    --web-input-border: #444;
    --web-error-bg: #3b1c1c;
    --web-error-fg: #ffb4b4;
    --web-error-border: #8d2f2f;
    --web-toast-bg: #1b5e20;
}

html[data-theme="light"] {
    color-scheme: light;
    background: var(--web-bg);
    --web-bg: #f3f4f6;
    --web-bg-header: #ffffff;
    --web-bg-card: #e8eaee;
    --web-bg-sunken: #dfe3ea;
    --web-bg-nav: #eef0f3;
    --web-bg-drop-hover: #e8f5e9;
    --web-border: #d8dbe2;
    --web-border-subtle: #e2e5eb;
    --web-border-dashed: #b4b9c3;
    /* Светлая тема без серого текста: вся типографика чёрная, оттенки
       остаются только у фонов, рамок и у состояния disabled. */
    --web-text: #000000;
    --web-text-muted: #000000;
    --web-text-soft: #000000;
    --web-text-nav: #000000;
    --web-link: #1b6e3a;
    --web-accent: #1f8a38;
    --web-accent-2: #43a047;
    --web-ghost-bg: #eceef2;
    --web-ghost-fg: #000000;
    --web-ghost-hover: #d8dce4;
    --web-nav-hover: #e0e3e9;
    --web-disabled: #9aa0ab;
    --web-danger-border: #c62828;
    --web-table-border: #d8dbe2;
    --web-table-th: #d8dce4;
    --web-table-td: #e8eaee;
    --web-analyze-h: #000000;
    --web-progress-bg: #e5e7eb;
    --web-input-bg: #ffffff;
    --web-input-border: #cfd3db;
    --web-error-bg: #fdecec;
    --web-error-fg: #8a1f1f;
    --web-error-border: #e0a0a0;
    --web-toast-bg: #2e7d32;
}

.web-cabinet-header {
    display: flex;
    align-items: center;
    width: 100%;
    min-width: 0;
    align-self: stretch;
    padding: 12px 20px;
    border-bottom: 1px solid var(--web-border-subtle);
    background: var(--web-bg-header);
    box-sizing: border-box;
    flex-shrink: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    color: var(--web-text);
}
/* Бургер шапки: на десктопе его нет, обёртка меню растворяется (display:contents),
   поэтому навигация и кнопки остаются прямыми детьми грида. */
.web-header-menu {
    display: contents;
}
.web-burger,
.web-header-title {
    display: none;
}
.web-burger {
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
    border: 1px solid var(--web-border);
    border-radius: 8px;
    background: var(--web-ghost-bg);
    color: var(--web-ghost-fg);
    cursor: pointer;
}
.web-burger:hover {
    background: var(--web-ghost-hover);
}
.web-burger svg {
    width: 20px;
    height: 20px;
}
.web-burger__close {
    display: none;
}
.web-burger[aria-expanded="true"] .web-burger__open {
    display: none;
}
.web-burger[aria-expanded="true"] .web-burger__close {
    display: block;
}
.web-header-bar {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    column-gap: 16px;
    align-items: center;
    width: 100%;
    min-width: 0;
}
.web-header-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-width: 0;
    flex: 0 0 auto;
    color: var(--web-text);
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: -0.01em;
    line-height: 1;
    text-decoration: none;
}
.web-header-brand:hover,
.web-header-brand:visited,
.web-header-brand:focus {
    color: var(--web-text);
    text-decoration: none;
}
.web-header-brand__mark {
    width: 36px;
    height: 36px;
    flex: 0 0 auto;
    border-radius: 50%;
    object-fit: contain;
}
.web-header-brand__name {
    white-space: nowrap;
}
.web-cabinet-header .service-nav {
    display: flex;
    flex-wrap: nowrap;
    gap: 4px;
    background: var(--web-bg-nav);
    padding: 4px;
    border-radius: 10px;
    min-width: 0;
    max-width: 100%;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior-x: contain;
    touch-action: pan-x;
    scrollbar-width: thin;
}
.web-cabinet-header .service-nav a {
    flex: 0 0 auto;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--web-text-nav);
    text-decoration: none;
    padding: 8px 10px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.85rem;
    font-family: inherit;
    line-height: 1.2;
}
/* Иконки пунктов: цвет наследуется от ссылки, поэтому отдельных правил
   для активного пункта и светлой темы не нужно. */
.web-cabinet-header .service-nav__icon {
    width: 16px;
    height: 16px;
    flex: 0 0 auto;
}
.web-cabinet-header .service-nav a.active,
.web-cabinet-header .service-nav a.active:hover,
.web-cabinet-header .service-nav a.active:visited {
    background: var(--web-accent);
    color: #fff;
}
.web-cabinet-header .service-nav a:hover:not(.active) {
    background: var(--web-nav-hover);
    color: var(--web-text);
}
.header-actions {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    min-width: 0;
    max-width: 100%;
    flex-wrap: nowrap;
    overflow: hidden;
}
/* Логин текущего веб-аккаунта: не кнопка, а подпись слева от «Выйти». */
.header-user {
    box-sizing: border-box;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
    max-width: 180px;
    height: 40px;
    padding: 0 10px;
    border: 1px solid var(--web-border-subtle);
    border-radius: 8px;
    background: var(--web-bg-nav);
    color: var(--web-text-muted);
    font-size: 0.85rem;
    line-height: 1;
}
.header-user svg {
    width: 16px;
    height: 16px;
    flex: 0 0 auto;
    opacity: .8;
}
.header-user__name {
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--web-text);
}
.header-actions form {
    margin: 0;
    display: flex;
    align-items: stretch;
    flex-shrink: 0;
}
.web-cabinet-header .header-actions .btn,
.web-cabinet-header .header-actions button,
.web-cabinet-header .header-actions .btn:hover,
.web-cabinet-header .header-actions button:hover,
header .header-actions .btn,
header .header-actions button,
.header-actions .btn,
.header-actions button {
    box-sizing: border-box;
    appearance: none;
    -webkit-appearance: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 40px;
    min-height: 40px;
    padding: 0 14px;
    border: 0;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    line-height: 1;
    font-family: inherit;
    text-decoration: none;
    cursor: pointer;
    background: var(--web-ghost-bg);
    color: var(--web-ghost-fg);
    white-space: nowrap;
    transition: background-color 0.15s, color 0.15s;
}
.web-cabinet-header .header-actions .btn:hover,
.web-cabinet-header .header-actions button:hover,
header .header-actions .btn:hover,
header .header-actions button:hover,
.header-actions .btn:hover,
.header-actions button:hover {
    background: var(--web-ghost-hover);
    color: var(--web-text);
}
.theme-toggle,
.fullscreen-toggle,
.admin-toggle,
.web-cabinet-header .theme-toggle,
.web-cabinet-header .fullscreen-toggle,
.web-cabinet-header .admin-toggle,
header .theme-toggle,
header .fullscreen-toggle,
header .admin-toggle,
.header-actions .theme-toggle,
.header-actions .fullscreen-toggle,
.header-actions .admin-toggle,
.header-actions button.theme-toggle,
.header-actions button.fullscreen-toggle,
.header-actions a.admin-toggle,
.web-cabinet-header .header-actions button.theme-toggle,
.web-cabinet-header .header-actions button.fullscreen-toggle,
.web-cabinet-header .header-actions a.admin-toggle,
header .header-actions button.theme-toggle,
header .header-actions button.fullscreen-toggle,
header .header-actions a.admin-toggle {
    width: 40px;
    min-width: 40px;
    height: 40px;
    min-height: 40px;
    padding: 0;
    border-radius: 50%;
}
.theme-toggle svg,
.fullscreen-toggle svg,
.admin-toggle svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}
.theme-toggle .theme-toggle-sun {
    display: none;
}
.theme-toggle .theme-toggle-moon {
    display: block;
}
html[data-theme="light"] .theme-toggle .theme-toggle-sun {
    display: block;
}
html[data-theme="light"] .theme-toggle .theme-toggle-moon {
    display: none;
}
.fullscreen-toggle .fs-enter {
    display: block;
}
.fullscreen-toggle .fs-exit {
    display: none;
}
html.web-is-fullscreen .fullscreen-toggle .fs-enter {
    display: none;
}
html.web-is-fullscreen .fullscreen-toggle .fs-exit {
    display: block;
}
.ma-fullscreen-btn svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}
.ma-fullscreen-btn .fs-enter {
    display: block;
}
.ma-fullscreen-btn .fs-exit {
    display: none;
}
html.web-is-fullscreen .ma-fullscreen-btn .fs-enter {
    display: none;
}
html.web-is-fullscreen .ma-fullscreen-btn .fs-exit {
    display: block;
}
.ma-header-actions .ma-fullscreen-btn {
    display: none;
}
@media (max-width: 760px), (hover: none) and (pointer: coarse) {
    .ma-header-actions .ma-fullscreen-btn:not([hidden]):not(.is-unavailable) {
        display: inline-flex;
    }
}
.web-cabinet-header .header-actions .fullscreen-toggle {
    display: none;
}
@media (max-width: 760px), (hover: none) and (pointer: coarse) {
    .web-cabinet-header .header-actions .fullscreen-toggle:not([hidden]):not(.is-unavailable) {
        display: inline-flex;
    }
}
:-webkit-full-screen {
    width: 100%;
    height: 100%;
    background: var(--web-bg);
}
:-moz-full-screen {
    width: 100%;
    height: 100%;
    background: var(--web-bg);
}
:fullscreen {
    width: 100%;
    height: 100%;
    background: var(--web-bg);
}
html.web-is-fullscreen,
html.web-is-fullscreen body {
    background: var(--web-bg);
    min-height: 100%;
}
html.web-fs-embedded .web-cabinet-header {
    display: none !important;
}
body.web-fs-shell > *:not(.web-cabinet-header):not(.web-fs-frame):not(.web-page-overlay):not(script) {
    display: none !important;
}
body.web-fs-shell .web-cabinet-header {
    position: sticky;
    top: 0;
    z-index: 6;
}
iframe.web-fs-frame {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    border: 0;
    z-index: 3;
    background: var(--web-bg);
    display: block !important;
}

.web-page-overlay {
    position: fixed;
    inset: 0;
    z-index: 240000;
    background: var(--web-bg);
}
.web-page-overlay[hidden] {
    display: none !important;
}
.web-page-overlay__frame {
    display: block;
    width: 100%;
    height: 100%;
    border: 0;
    background: var(--web-bg);
}
body.web-page-overlay-open {
    overflow: hidden;
}
body.web-page-overlay-open.web-page-overlay-desktop-header .web-cabinet-header {
    position: fixed;
    top: 0;
    right: 0;
    left: 0;
    z-index: 240001;
}

html[data-theme="light"] body {
    background: var(--web-bg);
    background-color: var(--web-bg);
    color: var(--web-text);
}

html[data-theme="light"] .web-cabinet-header {
    background: var(--web-bg-header);
    border-bottom-color: var(--web-border);
}
html[data-theme="light"] .web-cabinet-header .service-nav {
    background: var(--web-bg-nav);
}
html[data-theme="light"] .web-cabinet-header .service-nav a {
    color: var(--web-text-nav);
}
html[data-theme="light"] .web-cabinet-header .service-nav a.active {
    color: #fff;
}
html[data-theme="light"] .web-cabinet-header .service-nav a:hover:not(.active) {
    background: var(--web-nav-hover);
    color: var(--web-text);
}
html[data-theme="light"] .web-cabinet-header .header-actions button,
html[data-theme="light"] .web-cabinet-header .header-actions .btn {
    background: var(--web-ghost-bg);
    color: var(--web-ghost-fg);
}

html[data-theme="light"] .web-standalone-back {
    color: var(--web-link);
}
body.screenshot-mode .web-standalone-back {
    display: none !important;
}

html[data-theme="light"] .cabinet-footer {
    background: rgba(255, 255, 255, 0.94);
    border-top-color: var(--web-border);
}
html[data-theme="light"] .cabinet-shuffle-btn,
html[data-theme="light"] .cabinet-id-toggle-btn,
html[data-theme="light"] .cabinet-mode-btn,
html[data-theme="light"] .cabinet-send-btn,
html[data-theme="light"] .cabinet-link-btn,
html[data-theme="light"] .cabinet-admin-btn,
html[data-theme="light"] .cabinet-footer .cabinet-hints-toggle {
    background: #fff;
    border-color: #cfd3db;
    color: #000000;
}
html[data-theme="light"] .cabinet-shuffle-btn:active,
html[data-theme="light"] .cabinet-id-toggle-btn:active,
html[data-theme="light"] .cabinet-mode-btn:active,
html[data-theme="light"] .cabinet-send-btn:active,
html[data-theme="light"] .cabinet-link-btn:active,
html[data-theme="light"] .cabinet-admin-btn:active {
    background: #e8eaee;
}
html[data-theme="light"] .hint,
html[data-theme="light"] .empty {
    color: var(--web-text-muted);
}
html[data-theme="light"] .search-input,
html[data-theme="light"] .status-filter-select,
html[data-theme="light"] .label-filter-select,
html[data-theme="light"] .cabinet-footer .cabinet-quick-select-input,
html[data-theme="light"] .link-modal__input,
html[data-theme="light"] .link-modal__textarea,
html[data-theme="light"] .shuffle-modal__input {
    background: #fff;
    color: var(--web-text);
    border-color: #cfd3db;
}
html[data-theme="light"] .ma-audio-only-filter {
    background: #fff;
    border-color: #cfd3db;
    color: #000000;
}
html[data-theme="light"] .ma-audio-only-filter__mark {
    background: #fff;
    border-color: #b4b9c3;
}
html[data-theme="light"] .link-modal__box,
html[data-theme="light"] .shuffle-modal__box,
html[data-theme="light"] .card-bg-modal__box {
    background: #fff;
    border-color: var(--web-border);
    color: var(--web-text);
}
html[data-theme="light"] .link-modal__msg,
html[data-theme="light"] .shuffle-modal__label,
html[data-theme="light"] .card-bg-modal__hint,
html[data-theme="light"] .card-bg-modal__msg {
    color: var(--web-text-muted);
}
html[data-theme="light"] .link-modal__btn,
html[data-theme="light"] .card-bg-modal__btn {
    background: var(--web-ghost-bg);
    border-color: #cfd3db;
    color: var(--web-ghost-fg);
}
html[data-theme="light"] .link-modal__title {
    color: var(--web-text);
}
html[data-theme="light"] .link-modal__subtitle,
html[data-theme="light"] .link-modal__body {
    color: var(--web-text-soft);
}
html[data-theme="light"] .folder-create-parent-modal .folder-node__row {
    background: var(--web-ghost-bg);
    border: 1px solid var(--web-border);
    margin-bottom: 4px;
}
html[data-theme="light"] .folder-create-parent-modal .folder-node__row:hover {
    background: var(--web-ghost-hover);
}
html[data-theme="light"] .folder-create-parent-modal .folder-node__name {
    color: var(--web-text);
}
html[data-theme="light"] .folder-create-parent-modal .folder-node__pick-label,
html[data-theme="light"] .folder-create-parent-modal .folder-node__count,
html[data-theme="light"] .folder-create-parent-modal .folder-node__toggle {
    color: var(--web-text-muted);
}
html[data-theme="light"] .label-scroll-bottom-btn,
html[data-theme="light"] .card-bg-open-btn {
    background: #fff;
    border-color: #cfd3db;
    color: #000000;
}
html[data-theme="light"] .card-bg-modal__color-text,
html[data-theme="light"] .card-bg-modal__cell {
    background: #fff;
    border-color: #cfd3db;
    color: var(--web-text);
}

html[data-theme="light"] .game-type-label,
html[data-theme="light"] .hide-pips-label,
html[data-theme="light"] .player-position-toggle {
    color: var(--web-text);
}

@media (max-width: 760px) {
    .web-cabinet-header {
        padding: 8px 10px;
        padding-left: max(10px, env(safe-area-inset-left));
        padding-right: max(10px, env(safe-area-inset-right));
    }
    .web-header-bar {
        column-gap: 6px;
    }

    /* Телефон: в полосе логотип LearnBG слева и бургер справа,
       как на главной; навигация и кнопки уезжают в выпадающую панель. */
    .web-cabinet-header .web-header-bar {
        position: relative;
        display: flex;
        align-items: center;
        gap: 10px;
    }
    .web-header-brand {
        order: 1;
        gap: 8px;
        font-size: 0.98rem;
    }
    .web-header-brand__mark {
        width: 32px;
        height: 32px;
    }
    @media (max-width: 380px) {
        .web-header-brand__name {
            display: none;
        }
    }
    /* бургер уезжает в правый край полосы */
    .web-burger {
        display: inline-flex;
        order: 3;
        margin-left: auto;
    }
    .web-header-title {
        display: none;
    }
    .web-header-menu {
        display: none;
        position: absolute;
        top: calc(100% + 8px);
        left: 0;
        right: 0;
        z-index: 40;
        flex-direction: column;
        gap: 10px;
        padding: 10px;
        border-radius: 12px;
        background: var(--web-bg-header);
        border: 1px solid var(--web-border);
        box-shadow: 0 12px 28px rgba(0, 0, 0, .28);
    }
    .web-header-menu.is-open {
        display: flex;
    }
    /* на невысоких экранах список сервисов не помещается целиком */
    .web-header-menu {
        max-height: calc(100vh - 72px);
        overflow-y: auto;
        overscroll-behavior: contain;
    }
    /* внутри панели навигация идёт столбиком, без горизонтальной прокрутки */
    .web-cabinet-header .service-nav {
        flex-direction: column;
        flex-wrap: nowrap;
        overflow: visible;
        background: transparent;
        padding: 0;
        gap: 2px;
    }
    .web-cabinet-header .service-nav a {
        width: 100%;
        justify-content: flex-start;
    }
    .header-actions {
        flex-wrap: wrap;
        justify-content: flex-end;
        padding-top: 8px;
        border-top: 1px solid var(--web-border-subtle);
    }
    .web-cabinet-header .header-user {
        height: 36px;
        max-width: 140px;
        font-size: 0.78rem;
    }

    .web-cabinet-header .service-nav {
        scrollbar-width: none;
        padding: 3px;
    }
    .web-cabinet-header .service-nav::-webkit-scrollbar {
        display: none;
    }
    .web-cabinet-header .service-nav a {
        min-height: 36px;
        padding: 8px 10px;
        display: inline-flex;
        align-items: center;
        font-size: 0.8rem;
    }
    .web-cabinet-header .header-actions {
        gap: 4px;
    }
    .web-cabinet-header .header-actions .btn,
    .web-cabinet-header .header-actions button {
        min-height: 36px;
        height: 36px;
        padding: 0 8px;
        font-size: 0.78rem;
        white-space: nowrap;
    }
    .web-cabinet-header .header-actions .theme-toggle,
    .web-cabinet-header .header-actions .fullscreen-toggle,
    .web-cabinet-header .header-actions .admin-toggle,
    .web-cabinet-header .header-actions button.theme-toggle,
    .web-cabinet-header .header-actions button.fullscreen-toggle,
    .web-cabinet-header .header-actions a.admin-toggle {
        width: 36px;
        min-width: 36px;
        height: 36px;
        min-height: 36px;
        padding: 0;
    }
}

/* Светлая тема: остатки серого текста на светлых поверхностях.
   Переменные темы уже чёрные, здесь добиваем места с жёстко прописанным
   серым. Панели, которые и в светлой теме остаются тёмными (инструменты
   «Показа», модалки папок и аудио, панель доски), намеренно не трогаем -
   там серый по-прежнему читается. */
html[data-theme="light"] .card-bg-modal__selected,
html[data-theme="light"] .card-bg-modal__color-label,
html[data-theme="light"] .card-bg-modal__cell-cap,
html[data-theme="light"] .card-bg-modal__empty,
html[data-theme="light"] .shuffle-modal__msg,
html[data-theme="light"] .shuffle-modal__status-row,
html[data-theme="light"] .folder-schedule-modal__label-row,
html[data-theme="light"] .folder-schedule-modal__toggle-row,
html[data-theme="light"] .folder-schedule-modal__meta,
html[data-theme="light"] .tile--create,
html[data-theme="light"] .label-text,
html[data-theme="light"] #adminButtonContainer .admin-screenshot-font-scale,
html[data-theme="light"] #adminButtonContainer .admin-screenshot-font-scale label {
    color: #000000;
}