:root {
            --olive: #3d4a2a;
            --olive-light: #5a6b3c;
            --khaki: #8b9a6b;
            --sand: #c8c0a8;
            --cream: #f0ece2;
            --dark: #1a1d16;
            --dark2: #20241a;
            --dark3: #252a1e;
            --white: #fafaf7;
            --accent: #c4d94e;
            --text: #d4d8cc;
            --text-light: #7a7e72;
            --border: rgba(196, 217, 78, 0.1);
            --mono: 'JetBrains Mono', monospace;
            --sans: 'Source Sans 3', sans-serif;
            --sidebar-width: 260px;
        }

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

        body {
            font-family: var(--sans);
            background: var(--dark);
            color: var(--text);
            line-height: 1.7;
            -webkit-font-smoothing: antialiased;
        }

        /* ====== TOPBAR ====== */
        .topbar {
            position: fixed;
            top: 0; left: 0; right: 0;
            height: 56px;
            background: rgba(26, 29, 22, 0.97);
            border-bottom: 1px solid var(--border);
            backdrop-filter: blur(12px);
            z-index: 100;
            display: flex;
            align-items: center;
            padding: 0 24px;
            gap: 24px;
        }

        .topbar-logo {
            font-family: var(--mono);
            font-weight: 700;
            font-size: 16px;
            color: var(--white);
            letter-spacing: 2px;
            text-transform: uppercase;
            text-decoration: none;
            flex-shrink: 0;
        }
        .topbar-logo span { color: var(--accent); }

        .topbar-sep {
            width: 1px;
            height: 20px;
            background: var(--border);
            flex-shrink: 0;
        }

        .topbar-title {
            font-family: var(--mono);
            font-size: 12px;
            color: var(--text-light);
            letter-spacing: 1px;
            text-transform: uppercase;
        }

        .topbar-right {
            margin-left: auto;
            display: flex;
            gap: 16px;
            align-items: center;
        }

        .topbar-link {
            font-family: var(--mono);
            font-size: 11px;
            color: var(--text-light);
            text-decoration: none;
            letter-spacing: 1px;
            text-transform: uppercase;
            transition: color 0.2s;
        }
        .topbar-link:hover { color: var(--accent); }

        .lang-btn {
            font-family: var(--mono);
            font-size: 11px;
            color: var(--text-light);
            background: none;
            border: 1px solid rgba(196, 217, 78, 0.2);
            padding: 4px 10px;
            cursor: pointer;
            letter-spacing: 1px;
            transition: all 0.2s;
        }
        .lang-btn:hover { color: var(--accent); border-color: var(--accent); }

        .hamburger {
            display: none;
            background: none;
            border: none;
            cursor: pointer;
            padding: 4px;
            color: var(--text);
        }

        /* ====== LAYOUT ====== */
        .layout {
            display: flex;
            padding-top: 56px;
            min-height: 100vh;
        }

        /* ====== SIDEBAR ====== */
        .sidebar {
            width: var(--sidebar-width);
            flex-shrink: 0;
            position: fixed;
            top: 56px;
            left: 0;
            bottom: 0;
            overflow-y: auto;
            background: var(--dark2);
            border-right: 1px solid var(--border);
            padding: 24px 0;
        }

        .sidebar::-webkit-scrollbar { width: 4px; }
        .sidebar::-webkit-scrollbar-track { background: transparent; }
        .sidebar::-webkit-scrollbar-thumb { background: var(--olive); border-radius: 2px; }

        .nav-section {
            margin-bottom: 8px;
        }

        .nav-section-title {
            font-family: var(--mono);
            font-size: 10px;
            font-weight: 700;
            color: var(--text-light);
            letter-spacing: 2px;
            text-transform: uppercase;
            padding: 16px 20px 8px;
        }

        .nav-item {
            display: block;
            padding: 8px 20px;
            font-size: 14px;
            color: var(--text-light);
            text-decoration: none;
            cursor: pointer;
            border-left: 2px solid transparent;
            transition: all 0.15s;
        }
        .nav-item:hover {
            color: var(--text);
            background: rgba(196, 217, 78, 0.04);
        }
        .nav-item.active {
            color: var(--accent);
            border-left-color: var(--accent);
            background: rgba(196, 217, 78, 0.06);
        }

        .nav-subitem {
            display: block;
            padding: 5px 20px 5px 32px;
            font-family: var(--mono);
            font-size: 11px;
            color: var(--text-light);
            text-decoration: none;
            cursor: pointer;
            transition: color 0.15s;
        }
        .nav-subitem:hover { color: var(--accent); }
        .nav-subitem.active { color: var(--accent); }

        /* ====== MAIN CONTENT ====== */
        .main {
            margin-left: var(--sidebar-width);
            flex: 1;
            padding: 48px 56px 80px;
        }

        /* ====== PAGE ====== */
        .page{display:block}
/* ====== TYPOGRAPHY ====== */
        .page-label {
            font-family: var(--mono);
            font-size: 11px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 3px;
            text-transform: uppercase;
            margin-bottom: 12px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .page-label::before {
            content: '';
            width: 32px;
            height: 1px;
            background: var(--accent);
        }

        h1 {
            font-size: 36px;
            font-weight: 900;
            color: var(--white);
            line-height: 1.2;
            margin-bottom: 24px;
        }

        h2 {
            font-size: 20px;
            font-weight: 700;
            color: var(--white);
            margin: 40px 0 16px;
            padding-bottom: 8px;
            border-bottom: 1px solid var(--border);
            font-family: var(--mono);
            letter-spacing: 0.5px;
        }

        h3 {
            font-size: 14px;
            font-weight: 700;
            color: var(--accent);
            font-family: var(--mono);
            letter-spacing: 1px;
            text-transform: uppercase;
            margin: 28px 0 12px;
        }

        p {
            color: var(--text);
            margin-bottom: 16px;
            font-size: 15px;
        }

        /* ====== SPECS TABLE ====== */
        .spec-table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 14px;
        }
        .spec-table th {
            font-family: var(--mono);
            font-size: 10px;
            font-weight: 700;
            letter-spacing: 2px;
            text-transform: uppercase;
            color: var(--text-light);
            padding: 10px 16px;
            text-align: left;
            background: var(--dark3);
            border-bottom: 1px solid var(--border);
        }
        .spec-table td {
            padding: 10px 16px;
            border-bottom: 1px solid rgba(196, 217, 78, 0.05);
            color: var(--text);
        }
        .spec-table td:first-child {
            color: var(--text-light);
            font-size: 13px;
            width: 40%;
        }
        .spec-table td strong {
            color: var(--white);
            font-weight: 600;
        }
        .spec-table tr:hover td {
            background: rgba(196, 217, 78, 0.02);
        }

        /* ====== IMU COMPARISON ====== */
        .imu-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 12px;
            margin: 24px 0;
        }
        .imu-card {
            background: var(--dark3);
            border: 1px solid var(--border);
            padding: 16px;
        }
        .imu-card-model {
            font-family: var(--mono);
            font-size: 11px;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 1px;
            margin-bottom: 8px;
        }
        .imu-card-primary {
            font-size: 13px;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 4px;
        }
        .imu-card-label {
            font-size: 11px;
            color: var(--text-light);
            margin-bottom: 10px;
        }
        .imu-card-secondary {
            font-family: var(--mono);
            font-size: 10px;
            color: var(--khaki);
            line-height: 1.6;
            padding-top: 10px;
            border-top: 1px solid var(--border);
        }

        /* ====== CODE BLOCK ====== */
        .code-block {
            background: var(--dark3);
            border: 1px solid var(--border);
            border-left: 3px solid var(--accent);
            padding: 16px 20px;
            margin: 16px 0;
            font-family: var(--mono);
            font-size: 12px;
            color: var(--sand);
            overflow-x: auto;
            line-height: 1.8;
        }
        .code-block .comment { color: var(--text-light); }
        .code-block .key { color: var(--accent); }
        .code-block .val { color: var(--white); }

        /* ====== LIST ====== */
        .doc-list {
            list-style: none;
            margin: 12px 0 20px;
        }
        .doc-list li {
            padding: 6px 0 6px 20px;
            font-size: 14px;
            color: var(--text);
            border-bottom: 1px solid rgba(196, 217, 78, 0.04);
            position: relative;
        }
        .doc-list li::before {
            content: '▸';
            position: absolute;
            left: 0;
            color: var(--accent);
            font-size: 10px;
            top: 8px;
        }

        /* ====== CALLOUT ====== */
        .callout {
            border-left: 3px solid;
            padding: 12px 16px;
            margin: 20px 0;
            font-size: 14px;
        }
        .callout.warning {
            border-color: #e8a838;
            background: rgba(232, 168, 56, 0.06);
            color: #e8c87a;
        }
        .callout.tip {
            border-color: var(--accent);
            background: rgba(196, 217, 78, 0.05);
            color: var(--sand);
        }
        .callout.note {
            border-color: #5b8dd9;
            background: rgba(91, 141, 217, 0.06);
            color: #9ab8e8;
        }
        .callout-title {
            font-family: var(--mono);
            font-size: 11px;
            font-weight: 700;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 6px;
        }

        /* ====== FIRMWARE DOWNLOADS ====== */
        .firmware-group {
            margin: 12px 0;
            border: 1px solid var(--border);
        }
        .firmware-header {
            background: var(--dark3);
            padding: 12px 16px;
            font-family: var(--mono);
            font-size: 13px;
            font-weight: 700;
            color: var(--white);
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            user-select: none;
        }
        .firmware-header:hover { background: rgba(196, 217, 78, 0.06); }
        .firmware-header .chevron {
            font-size: 10px;
            color: var(--accent);
            transition: transform 0.2s;
        }
        .firmware-header.open .chevron { transform: rotate(180deg); }
        .firmware-body {
            display: none;
            padding: 8px 0;
        }
        .firmware-body.open { display: block; }
        .firmware-link {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 8px 16px;
            font-family: var(--mono);
            font-size: 12px;
            color: var(--text-light);
            text-decoration: none;
            transition: all 0.15s;
        }
        .firmware-link:hover {
            color: var(--accent);
            background: rgba(196, 217, 78, 0.04);
        }
        .firmware-link::before {
            content: '↓';
            color: var(--accent);
        }

        /* ====== KIT TABLE ====== */
        .kit-table {
            width: 100%;
            border-collapse: collapse;
            margin: 20px 0;
        }
        .kit-table td {
            padding: 10px 16px;
            font-size: 14px;
            border-bottom: 1px solid rgba(196, 217, 78, 0.05);
        }
        .kit-table td:first-child {
            font-family: var(--mono);
            color: var(--accent);
            font-size: 13px;
            width: 60px;
            font-weight: 700;
        }
        .kit-table td:last-child { color: var(--text); }
        .kit-table tr:hover td { background: rgba(196, 217, 78, 0.02); }

        /* ====== IMAGES ====== */
        .img-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
            margin: 24px 0;
        }
        .img-grid img {
            width: 100%;
            border: 1px solid var(--border);
            display: block;
        }
        .doc-img {
            width: 100%;
            border: 1px solid var(--border);
            display: block;
            margin: 24px 0;
        }

        /* ====== MOBILE ====== */
        @media (max-width: 768px) {
            .sidebar {
                transform: translateX(-100%);
                transition: transform 0.25s;
                z-index: 50;
            }
            .sidebar.open { transform: translateX(0); }
            .main {
                margin-left: 0;
                padding: 32px 20px 60px;
            }
            .hamburger { display: block; }
            .imu-grid { grid-template-columns: repeat(2, 1fr); }
            h1 { font-size: 28px; }
            .topbar-title, .topbar-sep { display: none; }
            .topbar { flex-wrap: nowrap; }
            .topbar-right { gap: 8px; }
            .img-grid { grid-template-columns: 1fr; }
        }

/* --- багатосторінкові доповнення --- */
.pin-table{width:100%;border-collapse:collapse;margin:18px 0;font-family:var(--mono);font-size:12.5px}
.pin-table th{background:var(--dark3);color:var(--accent);text-align:left;padding:9px 12px;
  font-weight:500;letter-spacing:.04em;text-transform:uppercase;font-size:11px;border-bottom:1px solid var(--border)}
.pin-table td{padding:8px 12px;border-bottom:1px solid rgba(196,217,78,.06);color:var(--text);vertical-align:top}
.pin-table td:first-child{color:var(--accent);white-space:nowrap}
.pin-table tr:hover td{background:rgba(196,217,78,.03)}
.pin-table .na{color:var(--text-light);font-style:italic}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.model-table td:first-child{color:var(--text-light);font-family:var(--sans)}
.model-table .yes{color:var(--accent)}
.crumb{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--text-light);margin-bottom:6px}
.next-links{display:flex;gap:12px;flex-wrap:wrap;margin-top:48px;padding-top:24px;
  border-top:1px solid var(--border)}
.next-links a{font-family:var(--mono);font-size:12px;color:var(--text-light);text-decoration:none;
  padding:8px 14px;border:1px solid var(--border);border-radius:3px;transition:.15s}
.next-links a:hover{color:var(--accent);border-color:var(--accent)}

/* нумерований варіант списку (кроки інструкцій) */
ol.doc-list{counter-reset:step;list-style:none}
ol.doc-list li::before{
  content:counter(step);counter-increment:step;
  font-family:var(--mono);font-size:11px;line-height:1.6;color:var(--accent)}

/* таблиці на 3+ колонки: не віддавати першій колонці 40% */
.spec-table.cols td:first-child,
.spec-table.cols th:first-child { width: auto; }
.spec-table.cols { table-layout: auto; }