:root {
    --bg-page: #F5F3FF;
    --bg-card: #FFFFFF;
    --bg-soft: #F9FAFB;
    --bg-hover: #F3F4F6;
    --bg-muted: #F4F4F8;

    --text-primary: #111827;
    --text-secondary: #4B5563;
    --text-muted: #6B7280;

    --primary: #7C3AED;
    --primary-hover: #6D28D9;
    --primary-soft: #EDE9FE;
    --primary-soft-2: #DDD6FE;

    --success: #10B981;
    --success-hover: #059669;
    --success-soft: #D1FAE5;

    --danger: #EF4444;
    --danger-hover: #DC2626;
    --danger-soft: #FEE2E2;

    --warning: #F59E0B;
    --warning-soft: #FEF3C7;

    --border: #E5E7EB;
    --border-soft: #F1F2F4;

    --shadow-sm: 0 1px 2px rgba(16, 24, 40, 0.04);
    --shadow-md: 0 4px 12px rgba(16, 24, 40, 0.06);
    --shadow-lg: 0 12px 28px rgba(16, 24, 40, 0.08);

    --radius-xs: 6px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-pill: 999px;

    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji",
        "Segoe UI Emoji", sans-serif;
}

html, body {
    font-family: var(--font-sans) !important;
    color: var(--text-primary);
}

html body,
body[data-active-nav],
body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    background-color: #667eea !important;
    background-image: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
}

.auth-box {
    background: var(--bg-card) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-lg) !important;
    border: 1px solid var(--border-soft) !important;
}

/* -------- Sidebar -------- */
body .sidebar,
body > aside.sidebar,
body > .sidebar {
    background: var(--bg-card) !important;
    box-shadow: var(--shadow-md) !important;
    border-radius: var(--radius-lg) !important;
    border: 1px solid var(--border-soft) !important;
    padding: 18px 14px !important;
    width: 240px !important;
    height: calc(100vh - 48px) !important;
    min-height: calc(100vh - 48px) !important;
    max-height: calc(100vh - 48px) !important;
    position: fixed !important;
    left: 24px !important;
    top: 24px !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 4px !important;
    box-sizing: border-box !important;
    overflow-y: auto !important;
}

/* Логотип в шапке сайдбара */
.sidebar .brand,
.brand {
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    padding: 6px 8px 14px !important;
    margin-bottom: 8px !important;
    border: none !important;
    border-bottom: 1px solid var(--border-soft) !important;
    border-radius: 0 !important;
    text-decoration: none !important;
    color: var(--primary-hover) !important;
    font-weight: 700 !important;
    font-size: 1.2rem !important;
    letter-spacing: 0.2px !important;
    background: transparent !important;
    width: 100% !important;
    box-sizing: border-box !important;
}
.brand:hover { color: var(--primary) !important; }
.brand-mark {
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    width: 30px !important;
    height: 30px !important;
    border-radius: 8px !important;
    background: linear-gradient(135deg, var(--primary) 0%, #8B5CF6 100%) !important;
    color: #fff !important;
    font-weight: 700 !important;
    font-size: 1rem !important;
    box-shadow: 0 2px 6px rgba(124, 58, 237, 0.35);
    flex: 0 0 auto !important;
}


/* Контейнер для пунктов меню */
.sidebar .sidebar-nav,
.sidebar-nav {
    display: flex !important;
    flex-direction: column !important;
    gap: 2px !important;
    list-style: none !important;
    padding: 0 !important;
    margin: 0 !important;
    flex: 1 1 auto !important;
    width: 100% !important;
}

/* Низ сайдбара — профиль пользователя */
.sidebar .sidebar-footer,
.sidebar-footer {
    margin-top: auto !important;
    padding-top: 12px !important;
    border-top: 1px solid var(--border-soft) !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
    width: 100% !important;
    flex: 0 0 auto !important;
}

.sidebar .user-card,
a.user-card {
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    padding: 8px 10px !important;
    border-radius: var(--radius-sm) !important;
    background: var(--bg-soft) !important;
    cursor: pointer !important;
    text-decoration: none !important;
    color: var(--text-primary) !important;
    transition: background 0.15s ease;
    border: 1px solid var(--border-soft) !important;
    width: 100% !important;
    box-sizing: border-box !important;
}
.user-card:hover { background: var(--primary-soft) !important; }
.user-avatar {
    flex: 0 0 auto;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary) 0%, #8B5CF6 100%);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
    text-transform: uppercase;
    box-shadow: 0 2px 6px rgba(124, 58, 237, 0.35);
}
.user-name {
    font-weight: 600;
    font-size: 0.95rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.profile-section {
    margin-bottom: 0 !important;
    padding-bottom: 0 !important;
    border-bottom: none !important;
}

/* -------- Nav buttons (текстовые ссылки в сайдбаре) -------- */
.sidebar .nav-btn,
.sidebar a.nav-btn,
.sidebar button.nav-btn,
body .sidebar .nav-btn {
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
    background: transparent !important;
    color: var(--text-secondary) !important;
    border: 1px solid transparent !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 500 !important;
    text-align: left !important;
    padding: 10px 12px !important;
    font-size: 15px !important;
    transition: background 0.15s ease, color 0.15s ease !important;
    margin: 0 !important;
    text-decoration: none !important;
    width: 100% !important;
    height: auto !important;
    box-sizing: border-box !important;
    cursor: pointer !important;
    line-height: 1.3 !important;
}

.sidebar .nav-btn:hover,
.sidebar a.nav-btn:hover,
.sidebar button.nav-btn:hover {
    background: var(--primary-soft) !important;
    color: var(--primary) !important;
    transform: none !important;
}

.sidebar .nav-btn.active,
.sidebar .nav-btn[aria-current="page"] {
    background: var(--primary-soft) !important;
    color: var(--primary-hover) !important;
    border-color: var(--primary-soft-2) !important;
}

/* Иконка перед пунктом меню */
.nav-btn .nav-ico {
    flex: 0 0 auto;
    width: 18px;
    height: 18px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: currentColor;
    opacity: 0.85;
}
.nav-btn:hover .nav-ico,
.nav-btn.active .nav-ico { opacity: 1; }

/* -------- Main content: подгоняем под более широкий sidebar -------- */
/* :has() — чтобы не задевать страницы без сайдбара (quiz.html и т.п.) */
body:has(.sidebar) .main-content {
    margin-left: 286px !important;
    max-width: calc(100% - 286px) !important;
    padding: 24px !important;
}

/* -------- Primary buttons (filled) -------- */
button.profile-btn,
button.search-btn,
.create-btn,
button.create-quiz-btn,
button.submit-btn,
.submit-btn,
button.modal-btn-primary,
.cat-btn-primary,
.profile-btn,
.search-btn,
.create-quiz-btn,
.modal-btn-primary {
    background: var(--primary) !important;
    background-image: none !important;
    color: #fff !important;
    border: none !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 600 !important;
    box-shadow: var(--shadow-sm) !important;
    padding: 10px 18px !important;
    font-size: 15px !important;
    transition: background 0.15s ease, transform 0.05s ease !important;
    width: auto !important;
}

.profile-btn:hover,
.search-btn:hover,
.create-btn:hover,
.create-quiz-btn:hover,
.submit-btn:hover,
.modal-btn-primary:hover,
.cat-btn-primary:hover {
    background: var(--primary-hover) !important;
    transform: translateY(-1px) !important;
}

/* Логин / регистрация — главная кнопка формы */
.auth-box button[type="submit"] {
    background: var(--primary) !important;
    background-image: none !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 600 !important;
    padding: 12px 16px !important;
}
.auth-box button[type="submit"]:hover {
    background: var(--primary-hover) !important;
    transform: none !important;
}
.auth-box .register-btn {
    background: transparent !important;
    color: var(--primary) !important;
    border: 1.5px solid var(--primary-soft-2) !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 500 !important;
}
.auth-box .register-btn:hover {
    background: var(--primary-soft) !important;
}

/* -------- Logout / cancel / danger -------- */
.sidebar .logout-btn,
.sidebar-footer .logout-btn,
button.logout-btn,
.logout-btn {
    background: transparent !important;
    background-image: none !important;
    color: var(--text-secondary) !important;
    border: 1px solid transparent !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 500 !important;
    padding: 10px 12px !important;
    font-size: 15px !important;
    width: 100% !important;
    margin: 0 !important;
    display: flex !important;
    align-items: center !important;
    gap: 12px !important;
    text-align: left !important;
    cursor: pointer !important;
    text-decoration: none !important;
    line-height: 1.3 !important;
}
.logout-btn:hover {
    background: var(--primary-soft) !important;
    color: var(--primary) !important;
    border-color: transparent !important;
    transform: none !important;
}

.cancel-btn,
.modal-btn-secondary {
    background: var(--bg-soft) !important;
    color: var(--text-secondary) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 500 !important;
}
.cancel-btn:hover,
.modal-btn-secondary:hover {
    background: var(--bg-hover) !important;
    color: var(--text-primary) !important;
}

.modal-btn-danger,
.quiz-btn.delete {
    background: var(--danger) !important;
    color: #fff !important;
    border-radius: var(--radius-sm) !important;
    font-weight: 600 !important;
    border: none !important;
}
.modal-btn-danger:hover,
.quiz-btn.delete:hover {
    background: var(--danger-hover) !important;
}

/* Кнопки действий в списке квизов: «Редактировать», «Удалить» */
.quiz-actions .quiz-btn {
    border-radius: var(--radius-sm) !important;
    font-weight: 600 !important;
    padding: 8px 14px !important;
    border: none !important;
}
.quiz-actions .quiz-btn:not(.delete) {
    background: var(--success-soft) !important;
    color: var(--success-hover) !important;
}
.quiz-actions .quiz-btn:not(.delete):hover {
    background: var(--success) !important;
    color: #fff !important;
}

/* -------- Pagination -------- */
.pagination {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    gap: 10px !important;
    margin-top: 18px !important;
}

.pagination-summary {
    color: #5B55C8 !important;
    font-weight: 800 !important;
    font-size: 14px !important;
    text-align: center !important;
}

.pagination-controls {
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 8px !important;
    flex-wrap: wrap !important;
}

.page-btn {
    min-width: 36px !important;
    height: 36px !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    gap: 6px !important;
    background: #fff !important;
    color: #6D28D9 !important;
    border: 1px solid #DDD6FE !important;
    border-radius: var(--radius-sm) !important;
    padding: 0 12px !important;
    font-weight: 800 !important;
    font-size: 13px !important;
    text-decoration: none !important;
    box-shadow: var(--shadow-sm) !important;
    cursor: pointer !important;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.05s ease !important;
}

.page-btn:hover {
    border-color: #A78BFA !important;
    color: #5B21B6 !important;
    background: #F5F3FF !important;
    transform: translateY(-1px) !important;
}

.page-btn.active {
    background: #7C3AED !important;
    color: #fff !important;
    border-color: #7C3AED !important;
}

.page-btn.disabled,
.page-btn[aria-disabled="true"] {
    color: rgba(255, 255, 255, 0.58) !important;
    background: rgba(139, 92, 246, 0.38) !important;
    border-color: rgba(139, 92, 246, 0.38) !important;
    cursor: default !important;
    pointer-events: none !important;
    box-shadow: none !important;
}

@media (max-width: 520px) {
    .pagination-summary {
        font-size: 13px !important;
    }

    .pagination-controls {
        gap: 8px !important;
    }

    .page-btn {
        min-width: 34px !important;
        height: 34px !important;
        padding: 0 10px !important;
        font-size: 12px !important;
    }
}

/* -------- Cards / sections -------- */
.header,
.content-section,
.quizzes-section-main,
.profile-section-main,
.search-section,
.public-quizzes,
.attempts-section,
.form-container,
.leaderboard-section,
.results-section,
.history-section {
    background: var(--bg-card) !important;
    border: 1px solid var(--border-soft) !important;
    box-shadow: var(--shadow-sm) !important;
    border-radius: var(--radius-lg) !important;
}

.header {
    padding: 20px 24px !important;
}

/* Домашняя страница: убираем просвет между верхней карточкой и поиском */
body[data-active-nav="home"] .header {
    margin-bottom: 0 !important;
    border-bottom-left-radius: 0 !important;
    border-bottom-right-radius: 0 !important;
}
body[data-active-nav="home"] .search-section {
    margin-top: 0 !important;
    border-top: none !important;
    border-top-left-radius: 0 !important;
    border-top-right-radius: 0 !important;
}
.header h1 {
    color: var(--text-primary) !important;
    font-weight: 700 !important;
    font-size: 1.9rem !important;
}
.header h2 {
    color: var(--text-muted) !important;
    font-weight: 500 !important;
    font-size: 1rem !important;
}
.quiz-info {
    color: var(--text-muted) !important;
    font-size: 0.95rem !important;
}

/* -------- Quiz list item (на главной и в «Мои квизы») -------- */
.quiz-list {
    list-style: none !important;
    padding: 0 !important;
    display: grid;
    gap: 12px;
}
.quiz-item {
    background: var(--bg-soft) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-md) !important;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.05s ease !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    gap: 18px !important;
}
.quiz-item:hover {
    background: var(--primary-soft) !important;
    border-color: var(--primary-soft-2) !important;
}
.quiz-name {
    color: var(--text-primary) !important;
    font-weight: 600 !important;
}
.quiz-card-main,
.quiz-info {
    min-width: 0 !important;
    flex: 1 1 auto !important;
}
.quiz-meta {
    color: var(--text-muted) !important;
    font-size: 0.9rem !important;
    flex-wrap: wrap !important;
}
.quiz-attempts {
    flex: 0 0 auto !important;
    display: inline-flex !important;
    align-items: center !important;
    gap: 7px !important;
    padding: 7px 11px !important;
    border-radius: var(--radius-sm) !important;
    background: var(--primary-soft) !important;
    color: var(--primary-hover) !important;
    border: 1px solid var(--primary-soft-2) !important;
    font-size: 14px !important;
    font-weight: 800 !important;
    white-space: nowrap !important;
}
.quiz-attempts-icon,
.quiz-attempts svg {
    width: 17px !important;
    height: 17px !important;
    stroke-width: 2.4 !important;
}

@media (max-width: 768px) {
    .quiz-item {
        align-items: flex-start !important;
        flex-direction: column !important;
    }

    .quiz-attempts {
        align-self: flex-start !important;
    }
}

/* -------- Profile menu items -------- */
.profile-menu-item {
    background: var(--bg-soft) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-md) !important;
    color: var(--text-primary) !important;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.05s ease !important;
}
.profile-menu-item:hover {
    background: var(--primary-soft) !important;
    border-color: var(--primary-soft-2) !important;
    color: var(--primary-hover) !important;
    transform: none !important;
}

/* -------- Inputs / textarea / select -------- */
input[type="text"],
input[type="number"],
input[type="email"],
input[type="password"],
input[type="search"],
textarea,
select {
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-sm) !important;
    padding: 10px 14px !important;
    background: #fff !important;
    color: var(--text-primary) !important;
    font-size: 15px !important;
    transition: border-color 0.15s ease, box-shadow 0.15s ease !important;
}

input[type="text"]:focus,
input[type="number"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
input[type="search"]:focus,
textarea:focus,
select:focus {
    outline: none !important;
    border-color: var(--primary) !important;
    box-shadow: 0 0 0 4px var(--primary-soft) !important;
}

.sort-form {
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    flex: 0 0 auto !important;
}

.section-toolbar {
    display: grid !important;
    grid-template-columns: 1fr auto 1fr !important;
    align-items: center !important;
    gap: 16px !important;
    margin-bottom: 20px !important;
}

.section-toolbar h2 {
    grid-column: 2 !important;
    margin: 0 !important;
}

.section-toolbar .sort-form {
    grid-column: 3 !important;
    justify-self: end !important;
}

.sort-select-wrap {
    position: relative !important;
    display: inline-flex !important;
    align-items: center !important;
}

.sort-filter-icon {
    position: absolute !important;
    left: 13px !important;
    width: 18px !important;
    height: 18px !important;
    color: var(--primary) !important;
    pointer-events: none !important;
    z-index: 1 !important;
}

.sort-select {
    height: 44px !important;
    min-width: 210px !important;
    padding: 0 42px 0 42px !important;
    border: 1px solid var(--primary-soft-2) !important;
    border-radius: var(--radius-sm) !important;
    background: #fff !important;
    color: #37308A !important;
    font-weight: 800 !important;
    box-shadow: var(--shadow-sm) !important;
    cursor: pointer !important;
}

.sort-direction-btn {
    width: 44px !important;
    height: 44px !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    border: 1px solid var(--primary-soft-2) !important;
    border-radius: var(--radius-sm) !important;
    background: #fff !important;
    color: var(--primary) !important;
    box-shadow: var(--shadow-sm) !important;
    cursor: pointer !important;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease, transform 0.05s ease !important;
}

.sort-direction-btn svg {
    width: 20px !important;
    height: 20px !important;
    stroke-width: 2.5 !important;
}

.sort-direction-btn:hover,
.sort-select:hover {
    border-color: #A78BFA !important;
    background: #F5F3FF !important;
}

.sort-direction-btn:hover {
    color: var(--primary-hover) !important;
    transform: translateY(-1px) !important;
}

@media (max-width: 760px) {
    .search-box {
        flex-wrap: wrap !important;
    }

    .search-input {
        min-width: 220px !important;
    }

    .sort-form {
        width: 100% !important;
    }

    .sort-select-wrap {
        flex: 1 1 auto !important;
    }

    .sort-select {
        width: 100% !important;
        min-width: 0 !important;
    }

    .section-toolbar {
        grid-template-columns: 1fr !important;
        justify-items: center !important;
    }

    .section-toolbar h2,
    .section-toolbar .sort-form {
        grid-column: 1 !important;
    }
}

/* -------- Радио / чекбоксы -------- */
input[type="radio"],
input[type="checkbox"] {
    accent-color: var(--primary);
}

/* -------- Option item в прохождении квиза -------- */
.option-item {
    background: var(--bg-soft) !important;
    border: 1.5px solid var(--border) !important;
    border-radius: var(--radius-md) !important;
    transition: background 0.15s ease, border-color 0.15s ease;
}
.option-item:hover {
    background: var(--primary-soft) !important;
    border-color: var(--primary-soft-2) !important;
}
.option-item.correct-answer {
    background: var(--success-soft) !important;
    border-color: var(--success) !important;
}
.option-item.selected-wrong {
    background: var(--danger-soft) !important;
    border-color: var(--danger) !important;
}

/* -------- Question field -------- */
.question-field {
    background: var(--bg-soft) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-md) !important;
}
.question-text {
    color: var(--text-primary) !important;
}

/* -------- Progress info row (квиз) -------- */
.progress-info {
    background: var(--bg-soft) !important;
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-md) !important;
}

/* -------- Modal (подтверждение удаления и т.п.) -------- */
.modal {
    background: var(--bg-card) !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-lg) !important;
    border: 1px solid var(--border-soft) !important;
}
.modal-overlay {
    background: rgba(17, 24, 39, 0.45) !important;
}
.modal-title {
    color: var(--text-primary) !important;
}

/* -------- Tables (история, лидерборд, результаты) -------- */
table {
    border-collapse: collapse;
    width: 100%;
}
.attempts-table,
.leaderboard-table,
.results-table {
    background: var(--bg-card) !important;
    border-radius: var(--radius-md) !important;
    overflow: hidden !important;
}
.attempts-table th,
.leaderboard-table th,
.results-table th {
    background: var(--bg-soft) !important;
    color: var(--text-secondary) !important;
    font-weight: 600 !important;
    border-bottom: 1px solid var(--border) !important;
}
.attempts-table td,
.leaderboard-table td,
.results-table td {
    border-bottom: 1px solid var(--border-soft) !important;
    color: var(--text-primary) !important;
}
.attempts-table tr:hover td,
.leaderboard-table tr:hover td {
    background: var(--bg-soft) !important;
}

/* -------- File upload zone (создание квиза) -------- */
.file-upload-section {
    background: var(--bg-soft) !important;
    border: 2px dashed var(--border) !important;
    border-radius: var(--radius-md) !important;
    transition: border-color 0.15s ease, background 0.15s ease;
}
.file-upload-section:hover {
    border-color: var(--primary) !important;
    background: var(--primary-soft) !important;
}
.file-upload-label {
    color: var(--text-secondary) !important;
}

/* -------- Error / status messages -------- */
.error-message {
    background: var(--danger-soft) !important;
    color: var(--danger-hover) !important;
    border: 1px solid var(--danger-soft) !important;
    border-radius: var(--radius-sm) !important;
}

/* -------- Тэги / бэйджи статуса (Публичный / Приватный) -------- */
.badge,
.tag {
    display: inline-block;
    padding: 3px 10px;
    border-radius: var(--radius-pill);
    font-size: 0.78rem;
    font-weight: 600;
}
.badge.public,
.tag.public {
    background: var(--success-soft) !important;
    color: var(--success-hover) !important;
}
.badge.private,
.tag.private {
    background: var(--bg-hover) !important;
    color: var(--text-secondary) !important;
}

/* -------- Универсальная защита от слишком вытянутых текстов -------- */
.quiz-name,
.question-text,
.modal-title,
.modal-message,
h1, h2, h3 {
    overflow-wrap: break-word;
    word-wrap: break-word;
}

/* -------- Compact sidebar for narrow screens -------- */
@media (max-width: 1500px) {
    body.quiz-form-page .sidebar,
    body.quiz-form-page > aside.sidebar,
    body.quiz-form-page > .sidebar {
        position: fixed !important;
        left: 10px !important;
        top: 10px !important;
        width: 64px !important;
        height: calc(100vh - 20px) !important;
        min-height: calc(100vh - 20px) !important;
        max-height: calc(100vh - 20px) !important;
        padding: 10px 8px !important;
        margin: 0 !important;
        border-radius: var(--radius-md) !important;
        overflow: visible !important;
        gap: 6px !important;
        z-index: 20 !important;
    }

    body.quiz-form-page:has(.sidebar) .main-content {
        margin-left: 84px !important;
        max-width: calc(100% - 84px) !important;
        padding: 10px 10px 20px !important;
    }

    body.quiz-form-page .sidebar .brand,
    body.quiz-form-page .brand {
        justify-content: center !important;
        padding: 6px 0 12px !important;
        margin-bottom: 4px !important;
        min-height: 44px !important;
        flex: 0 0 auto !important;
        position: relative !important;
    }

    body.quiz-form-page .sidebar .brand::before,
    body.quiz-form-page .brand::before {
        content: "Q";
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 38px;
        height: 38px;
        border-radius: 10px;
        background: linear-gradient(135deg, var(--primary) 0%, #8B5CF6 100%);
        color: #fff;
        font-weight: 800;
        font-size: 1.05rem;
        box-shadow: 0 2px 6px rgba(124, 58, 237, 0.35);
    }

    body.quiz-form-page .sidebar .brand-text,
    body.quiz-form-page .sidebar .user-name,
    body.quiz-form-page .sidebar .nav-btn span:not(.nav-ico),
    body.quiz-form-page .sidebar .logout-btn span:not(.nav-ico),
    body.quiz-form-page .sidebar-footer .logout-btn span:not(.nav-ico) {
        position: absolute !important;
        width: 1px !important;
        height: 1px !important;
        padding: 0 !important;
        margin: -1px !important;
        overflow: hidden !important;
        clip: rect(0, 0, 0, 0) !important;
        white-space: nowrap !important;
        border: 0 !important;
    }

    body.quiz-form-page .sidebar .sidebar-nav,
    body.quiz-form-page .sidebar-nav {
        align-items: center !important;
        justify-content: flex-start !important;
        gap: 8px !important;
        flex: 0 0 auto !important;
        width: 100% !important;
    }

    body.quiz-form-page .sidebar .nav-btn,
    body.quiz-form-page .sidebar a.nav-btn,
    body.quiz-form-page .sidebar button.nav-btn,
    body.quiz-form-page .sidebar .logout-btn,
    body.quiz-form-page .sidebar-footer .logout-btn,
    body.quiz-form-page .sidebar .user-card,
    body.quiz-form-page a.user-card {
        width: 46px !important;
        height: 46px !important;
        min-width: 46px !important;
        min-height: 46px !important;
        flex: 0 0 46px !important;
        justify-content: center !important;
        align-items: center !important;
        padding: 0 !important;
        border-radius: var(--radius-sm) !important;
        gap: 0 !important;
        position: relative !important;
        font-size: 0 !important;
        line-height: 1 !important;
    }

    body.quiz-form-page .sidebar .nav-btn:hover span:not(.nav-ico),
    body.quiz-form-page .sidebar .nav-btn:focus-visible span:not(.nav-ico),
    body.quiz-form-page .sidebar .brand:hover .brand-text,
    body.quiz-form-page .sidebar .brand:focus-visible .brand-text,
    body.quiz-form-page .sidebar .logout-btn:hover span:not(.nav-ico),
    body.quiz-form-page .sidebar .logout-btn:focus-visible span:not(.nav-ico),
    body.quiz-form-page .sidebar-footer .logout-btn:hover span:not(.nav-ico),
    body.quiz-form-page .sidebar-footer .logout-btn:focus-visible span:not(.nav-ico) {
        position: absolute !important;
        left: calc(100% + 10px) !important;
        top: 50% !important;
        transform: translateY(-50%) !important;
        width: max-content !important;
        max-width: 220px !important;
        height: auto !important;
        margin: 0 !important;
        padding: 7px 10px !important;
        overflow: visible !important;
        clip: auto !important;
        white-space: nowrap !important;
        border: 1px solid var(--border-soft) !important;
        border-radius: 8px !important;
        background: var(--bg-card) !important;
        color: var(--text-primary) !important;
        box-shadow: var(--shadow-md) !important;
        font-size: 13px !important;
        font-weight: 600 !important;
        line-height: 1.2 !important;
        z-index: 1000 !important;
        pointer-events: none !important;
    }

    body.quiz-form-page .sidebar .nav-btn .nav-ico,
    body.quiz-form-page .sidebar .nav-btn .nav-ico svg {
        width: 22px !important;
        height: 22px !important;
    }

    body.quiz-form-page .sidebar .sidebar-footer,
    body.quiz-form-page .sidebar-footer {
        margin-top: auto !important;
        padding-top: 10px !important;
        align-items: center !important;
        flex: 0 0 auto !important;
        width: 100% !important;
    }

    body.quiz-form-page .sidebar .user-card::after,
    body.quiz-form-page a.user-card::after {
        content: attr(aria-label);
        position: absolute;
        left: calc(100% + 10px);
        top: 50%;
        transform: translateY(-50%);
        width: max-content;
        max-width: 220px;
        padding: 7px 10px;
        border: 1px solid var(--border-soft);
        border-radius: 8px;
        background: var(--bg-card);
        color: var(--text-primary);
        box-shadow: var(--shadow-md);
        font-size: 13px;
        font-weight: 600;
        line-height: 1.2;
        z-index: 1000;
        pointer-events: none;
        opacity: 0;
        visibility: hidden;
    }

    body.quiz-form-page .sidebar .user-card:hover::after,
    body.quiz-form-page .sidebar .user-card:focus-visible::after,
    body.quiz-form-page a.user-card:hover::after,
    body.quiz-form-page a.user-card:focus-visible::after {
        opacity: 1;
        visibility: visible;
    }

    body.quiz-form-page .sidebar .user-avatar {
        width: 34px !important;
        height: 34px !important;
    }
}

@media (max-width: 900px) {
    body .sidebar,
    body > aside.sidebar,
    body > .sidebar {
        position: fixed !important;
        left: 10px !important;
        top: 10px !important;
        width: 64px !important;
        height: calc(100vh - 20px) !important;
        min-height: calc(100vh - 20px) !important;
        max-height: calc(100vh - 20px) !important;
        padding: 10px 8px !important;
        margin: 0 !important;
        border-radius: var(--radius-md) !important;
        overflow: visible !important;
        gap: 6px !important;
        z-index: 20 !important;
    }

    body:has(.sidebar) .main-content {
        margin-left: 84px !important;
        max-width: calc(100% - 84px) !important;
        padding: 10px 10px 20px !important;
    }

    .sidebar .brand,
    .brand {
        justify-content: center !important;
        padding: 6px 0 12px !important;
        margin-bottom: 4px !important;
        min-height: 44px !important;
        flex: 0 0 auto !important;
        position: relative !important;
    }

    .sidebar .brand::before,
    .brand::before {
        content: "Q";
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 38px;
        height: 38px;
        border-radius: 10px;
        background: linear-gradient(135deg, var(--primary) 0%, #8B5CF6 100%);
        color: #fff;
        font-weight: 800;
        font-size: 1.05rem;
        box-shadow: 0 2px 6px rgba(124, 58, 237, 0.35);
    }

    .sidebar .brand-text,
    .sidebar .user-name,
    .sidebar .nav-btn span:not(.nav-ico) {
        position: absolute !important;
        width: 1px !important;
        height: 1px !important;
        padding: 0 !important;
        margin: -1px !important;
        overflow: hidden !important;
        clip: rect(0, 0, 0, 0) !important;
        white-space: nowrap !important;
        border: 0 !important;
    }

    .sidebar .sidebar-nav,
    .sidebar-nav {
        align-items: center !important;
        justify-content: flex-start !important;
        gap: 8px !important;
        flex: 0 0 auto !important;
        width: 100% !important;
    }

    .sidebar .nav-btn,
    .sidebar a.nav-btn,
    .sidebar button.nav-btn,
    body .sidebar .nav-btn {
        width: 46px !important;
        height: 46px !important;
        min-width: 46px !important;
        min-height: 46px !important;
        flex: 0 0 46px !important;
        justify-content: center !important;
        align-items: center !important;
        padding: 0 !important;
        border-radius: var(--radius-sm) !important;
        gap: 0 !important;
        position: relative !important;
    }

    .sidebar .nav-btn:hover span:not(.nav-ico),
    .sidebar .nav-btn:focus-visible span:not(.nav-ico),
    .sidebar .brand:hover .brand-text,
    .sidebar .brand:focus-visible .brand-text {
        position: absolute !important;
        left: calc(100% + 10px) !important;
        top: 50% !important;
        transform: translateY(-50%) !important;
        width: max-content !important;
        max-width: 220px !important;
        height: auto !important;
        margin: 0 !important;
        padding: 7px 10px !important;
        overflow: visible !important;
        clip: auto !important;
        white-space: nowrap !important;
        border: 1px solid var(--border-soft) !important;
        border-radius: 8px !important;
        background: var(--bg-card) !important;
        color: var(--text-primary) !important;
        box-shadow: var(--shadow-md) !important;
        font-size: 13px !important;
        font-weight: 600 !important;
        line-height: 1.2 !important;
        z-index: 1000 !important;
        pointer-events: none !important;
    }

    .sidebar .logout-btn,
    .sidebar-footer .logout-btn,
    button.logout-btn,
    .logout-btn {
        width: 46px !important;
        height: 46px !important;
        min-width: 46px !important;
        min-height: 46px !important;
        flex: 0 0 46px !important;
        padding: 0 !important;
        border-radius: var(--radius-sm) !important;
        font-size: 0 !important;
        line-height: 1 !important;
        position: relative !important;
        display: inline-flex !important;
        align-items: center !important;
        justify-content: center !important;
    }
    .sidebar .logout-btn span:not(.nav-ico),
    .sidebar-footer .logout-btn span:not(.nav-ico) {
        position: absolute !important;
        width: 1px !important;
        height: 1px !important;
        padding: 0 !important;
        margin: -1px !important;
        overflow: hidden !important;
        clip: rect(0, 0, 0, 0) !important;
        white-space: nowrap !important;
        border: 0 !important;
    }

    .sidebar .logout-btn:hover span:not(.nav-ico),
    .sidebar .logout-btn:focus-visible span:not(.nav-ico),
    .sidebar-footer .logout-btn:hover span:not(.nav-ico),
    .sidebar-footer .logout-btn:focus-visible span:not(.nav-ico) {
        position: absolute !important;
        left: calc(100% + 10px) !important;
        top: 50% !important;
        transform: translateY(-50%) !important;
        width: max-content !important;
        max-width: 220px !important;
        height: auto !important;
        margin: 0 !important;
        padding: 7px 10px !important;
        overflow: visible !important;
        clip: auto !important;
        white-space: nowrap !important;
        border: 1px solid var(--border-soft) !important;
        border-radius: 8px !important;
        background: var(--bg-card) !important;
        color: var(--text-primary) !important;
        box-shadow: var(--shadow-md) !important;
        font-size: 13px !important;
        font-weight: 600 !important;
        line-height: 1.2 !important;
        z-index: 1000 !important;
        pointer-events: none !important;
    }
    .sidebar .nav-btn .nav-ico {
        width: 22px !important;
        height: 22px !important;
    }

    .sidebar .nav-btn .nav-ico svg {
        width: 22px !important;
        height: 22px !important;
    }

    .sidebar .sidebar-footer,
    .sidebar-footer {
        margin-top: auto !important;
        padding-top: 10px !important;
        align-items: center !important;
        flex: 0 0 auto !important;
        width: 100% !important;
    }

    .sidebar .user-card,
    a.user-card {
        width: 46px !important;
        height: 46px !important;
        min-width: 46px !important;
        min-height: 46px !important;
        flex: 0 0 46px !important;
        padding: 0 !important;
        justify-content: center !important;
        gap: 0 !important;
        position: relative !important;
    }

    .sidebar .user-card::after,
    a.user-card::after {
        content: attr(aria-label);
        position: absolute;
        left: calc(100% + 10px);
        top: 50%;
        transform: translateY(-50%);
        width: max-content;
        max-width: 220px;
        padding: 7px 10px;
        border: 1px solid var(--border-soft);
        border-radius: 8px;
        background: var(--bg-card);
        color: var(--text-primary);
        box-shadow: var(--shadow-md);
        font-size: 13px;
        font-weight: 600;
        line-height: 1.2;
        z-index: 1000;
        pointer-events: none;
        opacity: 0;
        visibility: hidden;
    }

    .sidebar .user-card:hover::after,
    .sidebar .user-card:focus-visible::after,
    a.user-card:hover::after,
    a.user-card:focus-visible::after {
        opacity: 1;
        visibility: visible;
    }

    .sidebar .user-avatar {
        width: 34px !important;
        height: 34px !important;
    }
}

@media (max-width: 520px) {
    body .sidebar,
    body > aside.sidebar,
    body > .sidebar {
        left: 6px !important;
        top: 6px !important;
        width: 58px !important;
        height: calc(100vh - 12px) !important;
        min-height: calc(100vh - 12px) !important;
        max-height: calc(100vh - 12px) !important;
        padding: 8px 6px !important;
    }

    body:has(.sidebar) .main-content {
        margin-left: 70px !important;
        max-width: calc(100% - 70px) !important;
        padding: 8px 8px 18px !important;
    }

    .sidebar .nav-btn,
    .sidebar a.nav-btn,
    .sidebar button.nav-btn,
    body .sidebar .nav-btn,
    .sidebar .user-card,
    a.user-card,
    .sidebar .logout-btn,
    .sidebar-footer .logout-btn {
        width: 42px !important;
        height: 42px !important;
        min-width: 42px !important;
        min-height: 42px !important;
        flex-basis: 42px !important;
    }
}

/* -------- Скроллбар -------- */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-page); }
::-webkit-scrollbar-thumb {
    background: var(--primary-soft-2);
    border-radius: 999px;
}
::-webkit-scrollbar-thumb:hover { background: var(--primary); }