:root {
    --desk: #008080;
    --face: #c0c0c0;
    --hi: #ffffff;
    --lt: #dfdfdf;
    --lo: #808080;
    --dk: #000000;
    --navy: #000080;
    --navy-2: #1084d0;
    --tip: #ffffe1;
    --font: Tahoma, "MS Sans Serif", "Microsoft Sans Serif", Geneva, Verdana,
        "Segoe UI", sans-serif;
    --mono: "Courier New", Consolas, monospace;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

[hidden] {
    display: none !important;
}

html {
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    overflow-x: hidden;
}

body {
    font-family: var(--font);
    font-size: 14px;
    line-height: 1.45;
    color: #000;
    background: var(--desk);
    min-height: 100vh;
    min-height: 100dvh;
    padding: 20px max(20px, env(safe-area-inset-right))
        calc(64px + env(safe-area-inset-bottom)) max(20px, env(safe-area-inset-left));
    overflow-x: hidden;
    overflow-wrap: break-word;
}

a {
    color: var(--navy);
}

/* ── Рабочий стол ──────────────────────────────────────────────── */
.desktop {
    display: grid;
    grid-template-columns: 96px minmax(0, 1fr);
    align-items: start;
    gap: 20px;
    max-width: 1120px;
    margin: 0 auto;
}

.icons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.icon {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    width: 90px;
    font-size: 12.5px;
    text-align: center;
    text-decoration: none;
    color: #fff;
}

.icon__img {
    font-size: 34px;
    line-height: 1;
    filter: drop-shadow(1px 1px 0 rgba(0, 0, 0, 0.35));
}

.icon__label {
    padding: 1px 3px;
}

.icon:focus-visible {
    outline: none;
}

.icon:hover .icon__label,
.icon:focus-visible .icon__label,
.icon.is-active .icon__label {
    background: var(--navy);
    outline: 1px dotted #fff;
}

.windows {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
    gap: 20px;
}

.windows--single {
    grid-template-columns: minmax(0, 1fr);
}

/* ── Окна ──────────────────────────────────────────────────────── */
.window {
    min-width: 0;
    padding: 3px;
    background: var(--face);
    border: 2px solid;
    border-color: var(--lt) var(--dk) var(--dk) var(--lt);
    box-shadow: inset 1px 1px var(--hi), inset -1px -1px var(--lo),
        4px 4px 0 rgba(0, 0, 0, 0.25);
}

.window__title {
    display: flex;
    align-items: center;
    gap: 6px;
    min-height: 22px;
    padding: 2px 3px 2px 5px;
    font-size: 13px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(90deg, var(--navy), var(--navy-2));
}

.window--inactive .window__title {
    color: var(--lt);
    background: linear-gradient(90deg, var(--lo), #b5b5b5);
}

.window__title-text {
    flex: 1;
    min-width: 0;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.ctrls {
    flex: none;
    display: flex;
    gap: 2px;
}

.ctrl {
    display: grid;
    place-items: center;
    width: 18px;
    height: 16px;
    font-family: inherit;
    font-size: 11px;
    font-weight: 700;
    line-height: 1;
    text-decoration: none;
    color: #000;
    background: var(--face);
    border: 1px solid;
    border-color: var(--hi) var(--dk) var(--dk) var(--hi);
    box-shadow: inset -1px -1px var(--lo);
}

.menubar {
    display: flex;
    flex-wrap: wrap;
    gap: 2px;
    padding: 3px 2px;
    font-size: 13px;
}

.menubar span {
    padding: 1px 7px;
    cursor: default;
}

.menubar span:hover {
    color: #fff;
    background: var(--navy);
}

.address {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 3px 4px 5px;
    font-size: 13px;
    border-top: 1px solid var(--lo);
}

.address__field {
    flex: 1;
    min-width: 0;
    padding: 2px 6px;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.window__body {
    padding: 16px 14px;
}

.statusbar {
    display: flex;
    gap: 3px;
    margin-top: 3px;
    font-size: 12.5px;
}

.statusbar > span {
    flex: 1;
    min-height: 20px;
    padding: 2px 6px;
    border: 1px solid;
    border-color: var(--lo) var(--hi) var(--hi) var(--lo);
}

.statusbar > span:last-child {
    flex: 0 0 auto;
}

/* ── Выпуклые и вдавленные элементы ────────────────────────────── */
.sunken {
    background: #fff;
    border: 2px solid;
    border-color: var(--lo) var(--hi) var(--hi) var(--lo);
    box-shadow: inset 1px 1px var(--dk), inset -1px -1px var(--lt);
}

.input {
    width: 100%;
    padding: 4px 6px;
    font: inherit;
    font-size: 14px;
    color: #000;
    background: #fff;
    border: 2px solid;
    border-color: var(--lo) var(--hi) var(--hi) var(--lo);
    border-radius: 0;
    box-shadow: inset 1px 1px var(--dk), inset -1px -1px var(--lt);
    outline: none;
}

.input:focus {
    outline: 1px dotted #000;
    outline-offset: 1px;
}

.btn95 {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-width: 88px;
    padding: 5px 14px;
    font: inherit;
    text-decoration: none;
    color: #000;
    background: var(--face);
    border: 2px solid;
    border-color: var(--hi) var(--dk) var(--dk) var(--hi);
    border-radius: 0;
    box-shadow: inset -1px -1px var(--lo), inset 1px 1px var(--lt);
    cursor: pointer;
}

.btn95:active {
    padding: 6px 13px 4px 15px;
    border-color: var(--dk) var(--hi) var(--hi) var(--dk);
    box-shadow: inset 1px 1px var(--lo), inset -1px -1px var(--lt);
}

.btn95:focus-visible {
    outline: 1px dotted #000;
    outline-offset: -5px;
}

.btn95--default {
    box-shadow: 0 0 0 1px #000, inset -1px -1px var(--lo), inset 1px 1px var(--lt);
}

.btn95:disabled {
    color: var(--lo);
    text-shadow: 1px 1px var(--hi);
    cursor: progress;
}

.buttons {
    display: flex;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 18px;
}

/* ── Окно входа ────────────────────────────────────────────────── */
.login-intro {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 18px;
}

.login-intro__icon {
    flex: none;
    font-size: 40px;
    line-height: 1;
}

.form-grid {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: center;
    gap: 10px 12px;
}

.form-grid > label {
    white-space: nowrap;
}

.form-grid .span2 {
    grid-column: 2;
}

.checks {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 4px;
}

.check {
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.check input {
    width: 13px;
    height: 13px;
    accent-color: #000;
}

.note {
    min-height: 1.45em;
}

/* ── Окно «Сведения о системе» ─────────────────────────────────── */
.about-logo {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 12px;
}

.about-logo b {
    font-size: 24px;
    font-style: italic;
    letter-spacing: -0.02em;
}

.about-logo small {
    display: block;
    font-size: 12px;
    font-style: normal;
    font-weight: 400;
    letter-spacing: 0;
}

.flag {
    flex: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2px;
    width: 34px;
    height: 30px;
    transform: skewY(-6deg);
}

.flag i:nth-child(1) {
    background: #f25022;
}

.flag i:nth-child(2) {
    background: #7fba00;
}

.flag i:nth-child(3) {
    background: #00a4ef;
}

.flag i:nth-child(4) {
    background: #ffb900;
}

.flag--sm {
    width: 16px;
    height: 14px;
    gap: 1px;
}

.group {
    margin-top: 12px;
    padding: 12px 12px 10px;
    border: 1px solid var(--lo);
    box-shadow: 1px 1px var(--hi), inset 1px 1px var(--hi);
}

.group legend {
    padding: 0 4px;
}

.list95 {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.list95 li {
    display: grid;
    grid-template-columns: 22px minmax(0, 1fr);
    gap: 6px;
}

.tip95 {
    display: flex;
    gap: 10px;
    margin-top: 14px;
    padding: 10px;
    font-size: 13px;
    background: var(--tip);
    border: 1px solid #000;
}

.tip95 code,
.panel code {
    padding: 0 4px;
    font-family: var(--mono);
    background: #fff;
    border: 1px solid var(--lo);
}

/* ── Музей: экспонаты ──────────────────────────────────────────── */
.pane {
    overflow: auto;
}

.exhibits {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(min(250px, 100%), 1fr));
    gap: 14px;
    padding: 14px;
}

.exhibit {
    display: flex;
    flex-direction: column;
    padding: 3px;
    background: var(--face);
    border: 2px solid;
    border-color: var(--lt) var(--dk) var(--dk) var(--lt);
    box-shadow: inset 1px 1px var(--hi), inset -1px -1px var(--lo);
}

.exhibit__title {
    display: flex;
    justify-content: space-between;
    gap: 6px;
    padding: 2px 5px;
    font-size: 12.5px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(90deg, var(--lo), #b5b5b5);
}

.exhibit:hover .exhibit__title {
    background: linear-gradient(90deg, var(--navy), var(--navy-2));
}

.exhibit__body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 10px 8px 8px;
}

.exhibit__head {
    display: flex;
    align-items: center;
    gap: 10px;
}

.exhibit__icon {
    font-size: 30px;
    line-height: 1;
}

.exhibit h2 {
    font-size: 15px;
}

.exhibit__meta {
    font-size: 12px;
    color: #404040;
}

.exhibit p {
    font-size: 13.5px;
}

.exhibit__fact {
    margin-top: auto;
    padding: 6px 8px;
    font-size: 12.5px;
    background: var(--tip);
    border: 1px solid #000;
}

/* ── Таблица «Подробно» ────────────────────────────────────────── */
.table95 {
    width: 100%;
    min-width: 640px;
    border-collapse: collapse;
    font-size: 13.5px;
    background: #fff;
}

.table95 th {
    padding: 3px 8px;
    font-weight: 400;
    text-align: left;
    white-space: nowrap;
    background: var(--face);
    border: 1px solid;
    border-color: var(--hi) var(--dk) var(--dk) var(--hi);
    box-shadow: inset -1px -1px var(--lo);
}

.table95 td {
    padding: 4px 8px;
    vertical-align: top;
}

.table95 tbody tr:hover td {
    color: #fff;
    background: var(--navy);
}

.table95 .bad {
    font-weight: 700;
    color: #c00000;
}

.table95 .good {
    color: #006400;
}

.table95 tbody tr:hover .bad,
.table95 tbody tr:hover .good {
    color: #fff;
}

/* ── Вкладки ───────────────────────────────────────────────────── */
.tabs {
    position: relative;
    z-index: 1;
    display: flex;
    flex-wrap: wrap;
    margin-bottom: -2px;
    padding-left: 4px;
}

.tab {
    margin-top: 3px;
    padding: 4px 12px;
    font: inherit;
    color: #000;
    background: var(--face);
    border: 2px solid;
    border-bottom: none;
    border-color: var(--hi) var(--dk) transparent var(--hi);
    border-radius: 3px 3px 0 0;
    box-shadow: inset -1px 0 var(--lo);
    cursor: pointer;
}

.tab[aria-selected="true"] {
    position: relative;
    z-index: 2;
    margin-top: 0;
    padding-bottom: 7px;
}

.tab:focus-visible {
    outline: 1px dotted #000;
    outline-offset: -4px;
}

.panel {
    padding: 16px 14px;
    background: var(--face);
    border: 2px solid;
    border-color: var(--hi) var(--dk) var(--dk) var(--hi);
    box-shadow: inset -1px -1px var(--lo);
}

.panel h3 {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    font-size: 15px;
}

.panel p + p {
    margin-top: 8px;
}

/* ── Диалог ошибки ─────────────────────────────────────────────── */
.dialog {
    position: fixed;
    inset: 0;
    z-index: 20;
    display: grid;
    place-items: center;
    padding: 20px;
}

.dialog .window {
    width: min(380px, 100%);
}

.dialog__body {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px 12px 4px;
}

.dialog__icon {
    flex: none;
    font-size: 32px;
    line-height: 1;
}

.dialog .buttons {
    justify-content: center;
    padding-bottom: 8px;
}

/* ── Панель задач ──────────────────────────────────────────────── */
.taskbar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 10;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 3px max(4px, env(safe-area-inset-right))
        calc(3px + env(safe-area-inset-bottom)) max(4px, env(safe-area-inset-left));
    background: var(--face);
    border-top: 1px solid var(--lt);
    box-shadow: inset 0 1px var(--hi);
}

.start {
    flex: none;
    min-width: 0;
    padding: 3px 8px;
    font-weight: 700;
}

.start:active {
    padding: 4px 7px 2px 9px;
}

.task {
    flex: 0 1 200px;
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
    padding: 3px 8px;
    font-size: 13px;
    text-decoration: none;
    color: #000;
    background: var(--face);
    border: 2px solid;
    border-color: var(--hi) var(--dk) var(--dk) var(--hi);
    box-shadow: inset -1px -1px var(--lo);
}

.task__text {
    min-width: 0;
    overflow: hidden;
    white-space: nowrap;
    text-overflow: ellipsis;
}

.task.is-active {
    font-weight: 700;
    background: repeating-conic-gradient(#fff 0% 25%, var(--face) 0% 50%) 0 0 / 2px 2px;
    border-color: var(--dk) var(--hi) var(--hi) var(--dk);
    box-shadow: inset 1px 1px var(--lo);
}

.tray {
    flex: none;
    margin-left: auto;
    padding: 3px 10px;
    font-size: 13px;
    border: 1px solid;
    border-color: var(--lo) var(--hi) var(--hi) var(--lo);
}

/* ── Адаптив ───────────────────────────────────────────────────── */
@media (max-width: 900px) {
    .windows {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 640px) {
    body {
        padding-top: 14px;
        padding-left: max(14px, env(safe-area-inset-left));
        padding-right: max(14px, env(safe-area-inset-right));
    }

    .desktop {
        grid-template-columns: minmax(0, 1fr);
    }

    .icons {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: flex-start;
        gap: 8px;
    }

    .icon {
        width: 80px;
    }

    .form-grid {
        grid-template-columns: minmax(0, 1fr);
        gap: 4px;
    }

    .form-grid .span2 {
        grid-column: 1;
    }

    /* 16px — иначе Safari на iOS зумит страницу при фокусе в поле */
    .form-grid .input {
        margin-bottom: 8px;
        font-size: 16px;
    }

    .buttons .btn95 {
        flex: 1;
    }

    .task:not(.is-active) {
        display: none;
    }
}