@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

:root {
    --bg-dark: #121212; --bg-panel: #1e1e1e; --bg-sidebar: #252525;
    --border-color: #333; --text-main: #e0e0e0; --text-muted: #aaa;
    --primary: #4a90e2; --success: #28a745; --danger: #dc3545;
    --header-height: 60px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Inter', sans-serif; background-color: var(--bg-dark); color: var(--text-main); overflow: hidden; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #1a1a1a; border-left: 1px solid var(--border-color); }
::-webkit-scrollbar-thumb { background: #555; border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: #777; }

.app-container { display: flex; flex-direction: column; height: 100vh; }
.top-bar { display: flex; justify-content: space-between; align-items: center; padding: 12px 20px;
    background-color: var(--bg-panel); border-bottom: 1px solid var(--border-color); z-index: 20; flex-shrink: 0; }
.top-bar .title { font-weight: 600; font-size: 16px; }
.top-bar .title span { color: var(--text-muted); font-weight: 400; font-size: 13px; margin-left: 8px; }
.actions { display: flex; gap: 10px; align-items: center; }
.actions .user { color: var(--text-muted); font-size: 13px; margin-right: 6px; }
.mode-switch { width: auto; min-width: 80px; padding: 6px 8px; font-size: 13px;
    background: var(--bg-dark); color: var(--text-main); border: 1px solid var(--border-color);
    border-radius: 6px; cursor: pointer; }

/* индикатор связи */
.net-indicator { display: flex; align-items: center; gap: 6px; padding: 4px 10px;
    border-radius: 6px; background: rgba(255,255,255,.05); font-size: 12px; cursor: default; }
.net-bars { display: inline-flex; align-items: flex-end; gap: 2px; height: 14px; }
.net-bar { width: 3px; background: currentColor; border-radius: 1px; }
.net-bar:nth-child(1) { height: 6px; }
.net-bar:nth-child(2) { height: 10px; }
.net-bar:nth-child(3) { height: 14px; }
.net-indicator.good { color: var(--success); }
.net-indicator.mid  { color: #e0a800; }
.net-indicator.bad  { color: var(--danger); }
.net-ms { color: var(--text-muted); }

.btn { padding: 9px 15px; border: none; border-radius: 6px; font-size: 14px; cursor: pointer; font-weight: 500;
    transition: filter .2s; color: #fff; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; }
.btn:hover { filter: brightness(1.12); }
.btn-primary { background-color: var(--primary); }
.btn-success { background-color: var(--success); }
.btn-secondary { background-color: #444; }
.btn-danger { background-color: var(--danger); }
.btn-sm { padding: 6px 10px; font-size: 12px; }

.board-container { display: flex; flex: 1; overflow: hidden; }

/* ---------- Сайдбар-дерево ---------- */
.sidebar { width: 290px; flex-shrink: 0; background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color); display: flex; flex-direction: column; }
.sidebar-search { padding: 12px; border-bottom: 1px solid var(--border-color); }
.sidebar-search input { width: 100%; }
.tree { flex: 1; overflow-y: auto; padding: 6px 0; }

.tree-city > .tree-row { font-weight: 600; }
.tree-row { display: flex; align-items: center; gap: 8px; padding: 9px 14px; cursor: pointer;
    border-left: 3px solid transparent; transition: background-color .15s; user-select: none; }
.tree-row:hover { background-color: rgba(255,255,255,.05); }
.tree-row.active { background-color: rgba(74,144,226,.15); border-left-color: var(--primary); }
.tree-caret { width: 12px; font-size: 10px; color: var(--text-muted); transition: transform .15s; flex-shrink: 0; }
.tree-node.collapsed > .tree-children { display: none; }
.tree-node.collapsed > .tree-row .tree-caret { transform: rotate(-90deg); }
.tree-label { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-size: 14px; }
.tree-count { font-size: 11px; color: var(--text-muted); }

.tree-location > .tree-row { padding-left: 30px; }
.tree-camera { padding: 7px 14px 7px 48px; display: flex; align-items: center; gap: 8px;
    cursor: pointer; font-size: 13px; color: var(--text-muted); }
.tree-camera:hover { background-color: rgba(255,255,255,.05); color: var(--text-main); }

.dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; background: #777; }
.dot.online  { background: var(--success); }
.dot.offline { background: var(--danger); }
.dot.unknown { background: #888; }

/* ---------- Рабочая область ---------- */
.viewer { flex: 1; display: flex; flex-direction: column; overflow: hidden; background: #161616; }
.viewer-head { padding: 12px 18px; border-bottom: 1px solid var(--border-color);
    display: flex; align-items: center; justify-content: space-between; background: var(--bg-panel); }
.viewer-head .crumbs { font-size: 14px; color: var(--text-muted); }
.viewer-head .crumbs b { color: var(--text-main); font-weight: 600; }
.viewer-tools { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.grid-pager { display: inline-flex; gap: 4px; align-items: center; }
.pg-btn { min-width: 30px; height: 30px; padding: 0 8px; border: 1px solid var(--border-color);
    background: var(--bg-dark); color: var(--text-main); border-radius: 6px; cursor: pointer;
    font-size: 13px; transition: background-color .12s, border-color .12s; }
.pg-btn:hover:not(:disabled) { border-color: var(--primary); }
.pg-btn.active { background: var(--primary); border-color: var(--primary); color: #fff; }
.pg-btn:disabled { opacity: .4; cursor: default; }

/* ============ Мобильная адаптация ============ */
.burger { display: none; background: transparent; border: none; color: var(--text-main);
    font-size: 22px; cursor: pointer; padding: 4px 8px; }
.sidebar-backdrop { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.5); z-index: 14; }

@media (max-width: 768px) {
    .top-bar { padding: 10px 12px; }
    .top-bar .title { font-size: 14px; }
    .top-bar .title span { display: none; }      /* прячем длинную статистику */
    .actions .user { display: none; }
    .burger { display: inline-flex; }

    /* сайдбар выезжает поверх контента */
    .sidebar { position: fixed; top: 0; left: 0; bottom: 0; width: 82%; max-width: 320px;
        transform: translateX(-100%); transition: transform .25s ease; z-index: 15; }
    .sidebar.open { transform: translateX(0); box-shadow: 4px 0 20px rgba(0,0,0,.5); }
    .sidebar-backdrop.open { display: block; }

    /* сетка — один столбец */
    .grid { grid-template-columns: 1fr; padding: 10px; gap: 10px; }

    /* тулбар переносится и не вылезает */
    .viewer-head { flex-wrap: wrap; gap: 8px; padding: 10px 12px; }
    .viewer-tools { width: 100%; justify-content: space-between; }
    .crumbs { font-size: 13px; }

    /* фуллскрин: стрелки поменьше и пониже, чтобы не перекрывать кадр */
    .fs-nav { width: 42px; height: 64px; font-size: 26px; }
    .fs-prev { left: 6px; } .fs-next { right: 6px; }
    .fs-head { flex-wrap: wrap; padding: 10px 12px; gap: 6px; }
    .fs-controls { flex-wrap: wrap; }

    /* модалки на всю ширину */
    .modal-content { width: 100%; padding: 18px; }

    /* индикатор связи компактнее */
    .net-indicator .net-ms { display: none; }
}

@media (max-width: 480px) {
    .grid { grid-template-columns: 1fr; }
    .mode-switch { min-width: 64px; font-size: 12px; }
}

.grid { flex: 1; overflow-y: auto; padding: 14px; display: grid; gap: 12px;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); align-content: start; }
.cam-tile { background: #000; border: 1px solid var(--border-color); border-radius: 8px; overflow: hidden;
    position: relative; aspect-ratio: 16/9; cursor: pointer; transition: border-color .15s; }
.cam-tile:hover { border-color: var(--primary); }
.cam-tile.dragging { opacity: .4; }
.cam-tile.drag-over { border-color: var(--primary); border-style: dashed; border-width: 2px; }
.cam-tile video, .cam-tile video-stream { width: 100%; height: 100%; object-fit: contain; background: #000; display: block; }
/* в сетке плеер не должен перехватывать клик — клик идёт на плитку, открывает фуллскрин */
.cam-tile video-stream { pointer-events: none; }
.cam-tile .cam-caption { position: absolute; left: 0; bottom: 0; right: 0; padding: 6px 10px;
    background: linear-gradient(transparent, rgba(0,0,0,.75)); font-size: 12px;
    display: flex; align-items: center; gap: 6px; pointer-events: none; }
.cam-tile .badge-offline { position: absolute; inset: 0; display: flex; align-items: center;
    justify-content: center; color: var(--text-muted); font-size: 13px; }

.empty-state { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center;
    color: var(--text-muted); gap: 10px; text-align: center; padding: 40px; }
.empty-state .big { font-size: 40px; opacity: .4; }

/* ---------- Фуллскрин ---------- */
.fs-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.92); z-index: 200;
    display: none; flex-direction: column; }
.fs-overlay.active { display: flex; }
.fs-head { display: flex; align-items: center; justify-content: space-between; padding: 12px 18px; flex-shrink: 0; }
.fs-title { font-size: 15px; font-weight: 600; }
.fs-body { flex: 1; display: flex; align-items: center; justify-content: center;
    padding: 0 18px 18px; min-height: 0; min-width: 0; }
.fs-body video-stream { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; }
.fs-body video-stream::part(video), .fs-body video { width: 100%; height: 100%;
    max-width: 100%; max-height: 100%; object-fit: contain; background: #000; }
.fs-controls { display: flex; gap: 8px; align-items: center; }
.fs-counter { color: var(--text-muted); font-size: 13px; margin-right: 6px; }
.fs-nav { position: absolute; top: 50%; transform: translateY(-50%); z-index: 210;
    width: 54px; height: 90px; border: none; cursor: pointer; color: #fff;
    background: rgba(255,255,255,.08); font-size: 34px; line-height: 1;
    display: flex; align-items: center; justify-content: center;
    border-radius: 8px; transition: background-color .15s; }
.fs-nav:hover { background: rgba(255,255,255,.2); }
.fs-prev { left: 16px; }
.fs-next { right: 16px; }

/* ---------- Модалки / формы (из базового стиля) ---------- */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.6); display: none;
    justify-content: center; align-items: center; z-index: 100; }
.modal-overlay.active { display: flex; }
.modal-content { background: var(--bg-panel); padding: 25px; border-radius: 10px; width: 520px;
    max-width: 95%; max-height: 90vh; overflow-y: auto; box-shadow: 0 10px 25px rgba(0,0,0,.5);
    position: relative; }
.modal-close { position: absolute; top: 14px; right: 14px; width: 28px; height: 28px;
    border: none; background: transparent; color: var(--text-muted); cursor: pointer;
    font-size: 20px; line-height: 1; border-radius: 6px; display: flex; align-items: center;
    justify-content: center; transition: background-color .15s, color .15s; }
.modal-close:hover { background-color: rgba(255,255,255,.08); color: var(--text-main); }
.modal-title { margin-bottom: 20px; font-size: 18px; border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px; padding-right: 30px; }

/* ---- Интерактивное дерево в админке ---- */
.adm-tree { font-size: 14px; }
.adm-row { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 6px;
    transition: background-color .12s; }
.adm-row:hover { background-color: rgba(255,255,255,.04); }
.adm-row .lbl { flex: 1; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.adm-row .actions-mini { display: flex; gap: 4px; opacity: 0; transition: opacity .12s; }
.adm-row:hover .actions-mini { opacity: 1; }
.adm-row .icon-btn { width: 26px; height: 26px; border: none; background: transparent;
    color: var(--text-muted); cursor: pointer; border-radius: 4px; display: inline-flex;
    align-items: center; justify-content: center; font-size: 14px; transition: background-color .12s, color .12s; }
.adm-row .icon-btn:hover { background-color: rgba(255,255,255,.08); color: var(--text-main); }
.adm-row .icon-btn.danger:hover { color: var(--danger); }
.adm-city > .adm-row { font-weight: 600; }
.adm-location > .adm-row { padding-left: 24px; }
.adm-registrar > .adm-row { padding-left: 44px; color: var(--text-muted); font-size: 13px; }
.adm-camera { padding: 5px 8px 5px 64px; display: flex; align-items: center; gap: 8px;
    font-size: 12px; color: var(--text-muted); }
.adm-camera:hover { background-color: rgba(255,255,255,.04); }
.adm-camera .actions-mini { opacity: 0; }
.adm-camera:hover .actions-mini { opacity: 1; }
.form-group { margin-bottom: 15px; display: flex; flex-direction: column; }
.form-row { display: flex; gap: 15px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 140px; }
label { font-size: 13px; color: var(--text-muted); margin-bottom: 5px; }
input[type="text"], input[type="url"], input[type="password"], input[type="number"],
input[type="datetime-local"], input[type="date"], select {
    padding: 10px; border: 1px solid var(--border-color); border-radius: 6px;
    background-color: var(--bg-dark); color: var(--text-main); font-family: 'Inter', sans-serif; width: 100%; }
input:focus, select:focus { outline: none; border-color: var(--primary); }
.modal-actions { display: flex; gap: 10px; margin-top: 22px; align-items: center; }
.hint { font-size: 12px; color: var(--text-muted); margin-top: 4px; }
.discover-list { border: 1px solid var(--border-color); border-radius: 6px; max-height: 220px; overflow-y: auto; }
.discover-item { display: flex; align-items: center; gap: 10px; padding: 8px 12px; border-bottom: 1px solid var(--border-color); }
.discover-item:last-child { border-bottom: none; }
.discover-item input[type="text"] { flex: 1; }
.status-line { font-size: 13px; margin-top: 8px; min-height: 18px; }
.status-line.ok { color: var(--success); }
.status-line.err { color: var(--danger); }
.spinner { display:inline-block; width:14px; height:14px; border:2px solid rgba(255,255,255,.25);
    border-top-color:#fff; border-radius:50%; animation: spin .6s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }