body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background-color: #f0f2f5;
    color: #333;
}

.app {
    display: grid;
    grid-template-columns: 220px 1fr;
    height: 100vh;
    overflow: hidden;
    isolation: isolate;
    background-color: #f0f2f5;
    transition: grid-template-columns 0.3s ease;
}

/* Свёрнутый сайдбар */
.app.nav-collapsed {
    grid-template-columns: 64px 1fr;
}

.navigation-frame {
    background-color: #f0f2f5;
    padding: 20px 0 0 0;
    display: flex;
    flex-direction: column;
    border-right: 1px solid #e0e0e0;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow: hidden;
    box-sizing: border-box;
    transition: width 0.3s ease;
    width: 220px;
}

.app.nav-collapsed .navigation-frame {
    width: 64px;
}

.navigation-frame-label {
    display: flex;
    align-items: center;
    font-weight: bold;
    font-size: 16px;
    padding: 0 12px 0 15px;
    margin-bottom: 30px;
    gap: 8px;
    min-height: 32px;
}

.nav-label-text {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    transition: opacity 0.2s ease, width 0.3s ease;
    opacity: 1;
}

.app.nav-collapsed .nav-label-text {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

/* Кнопка сворачивания */
.nav-toggle-btn {
    background: none;
    border: 1px solid #d0d3d8;
    border-radius: 6px;
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
    color: #666;
    transition: background 0.2s, color 0.2s, transform 0.3s ease;
    padding: 0;
    margin-left: auto;
}

.nav-toggle-btn:hover {
    background: #e4e6eb;
    color: #333;
}

.app.nav-collapsed .nav-toggle-btn {
    transform: rotate(180deg);
    margin-left: 0;
}

.app.nav-collapsed .navigation-frame-label {
    justify-content: center;
    padding: 0 8px;
}

.logo-image {
    width: 24px;
    height: 24px;
    margin-right: 8px;
}

.menu-button {
    background-color: transparent;
    border: none;
    display: flex;
    align-items: center;
    padding: 12px 15px;
    cursor: pointer;
    transition: background-color 0.2s ease;
    width: 100%;
    text-align: left;
    position: relative;
    white-space: nowrap;
}

.menu-button:hover {
    background-color: #e4e6eb;
}

.button-image {
    width: 20px;
    height: 20px;
    margin-right: 12px;
    flex-shrink: 0;
    transition: margin 0.3s ease;
}

.menu-button span {
    font-size: 14px;
    color: #333;
    transition: opacity 0.2s ease;
    overflow: hidden;
    white-space: nowrap;
}

/* Свёрнутое состояние — только иконки */
.app.nav-collapsed .menu-button {
    justify-content: center;
    padding: 12px 0;
}

.app.nav-collapsed .menu-button .button-image {
    margin-right: 0;
}

.app.nav-collapsed .menu-button span {
    opacity: 0;
    width: 0;
    overflow: hidden;
}

/* Тултип при свёрнутом сайдбаре */
.app.nav-collapsed .menu-button::after {
    content: attr(data-tooltip);
    position: absolute;
    left: 70px;
    top: 50%;
    transform: translateY(-50%);
    background: #1f2937;
    color: white;
    font-size: 12px;
    font-weight: 500;
    padding: 5px 10px;
    border-radius: 6px;
    white-space: nowrap;
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.15s ease;
    z-index: 999;
}

.app.nav-collapsed .menu-button:hover::after {
    opacity: 1;
}

/* Основная область */
.content-area {
    padding: 60px 20px 20px 20px;
    overflow-y: auto;
    background-color: #ffffff;
    position: relative;
}

/* ═══════════════════════════════════════
   ПРОФИЛЬ — внизу nav (не скроллится)
   ═══════════════════════════════════════ */

/* Распорка — толкает профиль вниз */
.nav-spacer {
    flex: 1;
}

/* Обёртка профиля */
.nav-profile-wrap {
    border-top: 1px solid #e0e0e0;
    padding: 6px 0 20px 0;
}

/* Блок профиля */
.user-profile {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 15px;
    cursor: pointer;
    transition: background-color 0.2s, padding 0.3s ease, justify-content 0.3s;
}

.user-profile:hover {
    background-color: #e4e6eb;
}

.profile-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    flex-shrink: 0;
}

.user-name {
    font-size: 13px;
    color: #333;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
    transition: opacity 0.2s ease;
}

/* Свёрнутый профиль — только иконка по центру */
.app.nav-collapsed .user-profile {
    justify-content: center;
    padding: 10px 0;
}

.app.nav-collapsed .user-name {
    opacity: 0;
    width: 0;
    overflow: hidden;
    flex: 0;
}

/* Дропдаун — открывается вверх */
.profile-dropdown {
    display: none;
    position: absolute;
    bottom: 100%;
    left: 0;
    right: 0;
    background-color: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 8px;
    box-shadow: 0 -4px 12px rgba(0,0,0,0.10);
    z-index: 9999;
    min-width: 180px;
    overflow: hidden;
}

.profile-dropdown.open {
    display: block;
}

.profile-dropdown a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    text-decoration: none;
    color: #333;
    font-size: 14px;
    transition: background-color 0.2s;
    cursor: pointer;
}

.profile-dropdown a:hover {
    background-color: #f0f2f5;
}

/* Модалка профиля */
#profile-modal {
    position: fixed;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

/* ═══════════════════════════════════════
   СТРАНИЦЫ
   ═══════════════════════════════════════ */
.page {
    display: block;
}

.page h2 {
    font-size: 20px;
    font-weight: bold;
    color: #222;
    margin-bottom: 16px;
    margin-top: 40px;
}

/* Под-вкладки */
.tabs {
    list-style: none;
    padding: 0;
    margin: 10px 0;
    display: flex;
    border-bottom: 1px solid #e0e0e0;
}

.tab {
    padding: 10px 20px;
    cursor: pointer;
    transition: background-color 0.3s;
    font-size: 14px;
    color: #555;
    user-select: none;
}

.tab:hover {
    background-color: #f0f2f5;
}

.tab.active {
    border-bottom: 2px solid #007bff;
    font-weight: bold;
    color: #007bff;
}

.tab-content {
    margin-top: 16px;
}

/* Поиск */
.search-input,
.search-users {
    width: 100%;
    padding: 10px 12px;
    margin-bottom: 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 14px;
    box-sizing: border-box;
    transition: border-color 0.2s;
    outline: none;
}

.search-input:focus,
.search-users:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.1);
}

/* Таблица оборудования */
.equipment-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.equipment-table th,
.equipment-table td {
    border: 1px solid #ddd;
    padding: 8px 12px;
    text-align: left;
    font-size: 14px;
}

.equipment-table th {
    background-color: #f8f9fa;
    font-weight: bold;
    color: #444;
}

.equipment-table tr:nth-child(even) {
    background-color: #f2f2f2;
}

.equipment-table tr:hover {
    background-color: #eaf3ff;
}

/* Таблица пользователей */
.users-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
    font-size: 14px;
}

.users-table th,
.users-table td {
    border: 1px solid #ddd;
    padding: 10px 12px;
    text-align: left;
}

.users-table th {
    background-color: #f8f9fa;
    font-weight: bold;
    color: #444;
    position: sticky;
    top: 0;
    z-index: 1;
}

.users-table tr:nth-child(even) {
    background-color: #f7f7f7;
}

.users-table tr:hover {
    background-color: #eaf3ff;
}

/* Контейнер таблицы пользователей со скроллом */
#users-table-container > div {
    max-height: 420px;
    overflow-y: auto;
    border: 1px solid #ddd;
    border-radius: 6px;
}

/* Детали пользователя */
#user-detail-container {
    background-color: #f9f9f9;
    border: 1px solid #ddd;
    border-radius: 8px;
    padding: 20px;
    margin-top: 20px;
}

#user-detail-content {
    font-size: 14px;
    line-height: 1.8;
    color: #333;
}

/* Кнопки */
.buttons-container {
    display: flex;
    justify-content: flex-start;
    gap: 10px;
    margin-top: 12px;
}

.action-button {
    padding: 9px 20px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: background-color 0.2s, transform 0.1s;
}

.action-button:hover {
    background-color: #0056b3;
}

.action-button:active {
    transform: scale(0.98);
}

#back-to-table {
    background-color: #6c757d;
    margin-top: 20px;
}

#back-to-table:hover {
    background-color: #545b62;
}

/* Стили таблицы в разделе admins */
#admins .users-table th,
#admins .users-table td {
    border: 1px solid #ddd;
    padding: 10px 12px;
    text-align: left;
}

#admins .users-table th {
    background-color: #f8f9fa;
    font-weight: bold;
    color: #444;
}

#admins .users-table tr:nth-child(even) {
    background-color: #f7f7f7;
}

#admins .users-table tr:hover {
    background-color: #eaf3ff;
}

#admins .tabs {
    list-style: none;
    padding: 0;
    margin: 10px 0;
    display: flex;
    border-bottom: 1px solid #e0e0e0;
}

#admins .tab {
    padding: 10px 20px;
    cursor: pointer;
    font-size: 14px;
    color: #555;
}

#admins .tab.active {
    border-bottom: 2px solid #007bff;
    font-weight: bold;
    color: #007bff;
}