:root {
            --bg: #070907;
            --panel: rgba(18, 24, 17, 0.88);
            --panel-strong: #141b13;
            --text: #f3f5ee;
            --muted: #b7c0ae;
            --line: rgba(150, 255, 90, 0.22);
            --green: #93ff46;
            --amber: #ffc857;
            --danger: #ff7a66;
            --shadow: rgba(0, 0, 0, 0.45);
        }

        * {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            min-height: 100vh;
            color: var(--text);
            font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.65;
            background:
                radial-gradient(circle at top left, rgba(147, 255, 70, 0.18), transparent 34rem),
                radial-gradient(circle at bottom right, rgba(255, 200, 87, 0.12), transparent 28rem),
                linear-gradient(135deg, #050705 0%, #10170f 52%, #050705 100%);
            padding: 24px;
        }

        body::before {
            content: "";
            position: fixed;
            inset: 0;
            pointer-events: none;
            opacity: 0.22;
            background-image:
                linear-gradient(30deg, rgba(255, 255, 255, 0.05) 12%, transparent 12.5%, transparent 87%, rgba(255, 255, 255, 0.05) 87.5%, rgba(255, 255, 255, 0.05)),
                linear-gradient(150deg, rgba(255, 255, 255, 0.05) 12%, transparent 12.5%, transparent 87%, rgba(255, 255, 255, 0.05) 87.5%, rgba(255, 255, 255, 0.05));
            background-size: 42px 72px;
        }

        .shell {
            position: relative;
            max-width: 1040px;
            margin: 0 auto;
        }

        .hero {
            overflow: hidden;
            position: relative;
            padding: 34px;
            border: 1px solid var(--line);
            border-radius: 28px;
            background:
                linear-gradient(135deg, rgba(20, 27, 19, 0.96), rgba(10, 13, 9, 0.92)),
                repeating-linear-gradient(45deg, rgba(147, 255, 70, 0.05) 0 10px, transparent 10px 20px);
            box-shadow: 0 28px 80px var(--shadow);
        }

        .hero::after {
            content: "";
            position: absolute;
            right: -90px;
            top: -90px;
            width: 280px;
            height: 280px;
            border: 1px solid rgba(147, 255, 70, 0.24);
            border-radius: 50%;
            box-shadow: inset 0 0 0 28px rgba(147, 255, 70, 0.04);
            pointer-events: none;
        }

        .topbar {
            position: relative;
            z-index: 2;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            margin-bottom: 42px;
        }

        .brand {
            display: flex;
            align-items: center;
            gap: 14px;
            font-weight: 800;
            letter-spacing: 0.08em;
            text-transform: uppercase;
        }

        .brand-mark {
            display: grid;
            place-items: center;
            width: 52px;
            height: 52px;
            border-radius: 16px;
            color: #0b1109;
            background: linear-gradient(135deg, var(--green), #d9ff9f);
            box-shadow: 0 0 28px rgba(147, 255, 70, 0.28);
            font-size: 1.5rem;
        }

        .language-switcher {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            justify-content: flex-end;
        }

        .lang-btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--line);
            color: var(--text);
            background: rgba(255, 255, 255, 0.06);
            padding: 10px 14px;
            border-radius: 999px;
            cursor: pointer;
            font: inherit;
            text-decoration: none;
            transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
        }

        .lang-btn:hover {
            transform: translateY(-1px);
            border-color: var(--green);
        }

        .lang-btn.active {
            color: #091006;
            background: var(--green);
            border-color: var(--green);
            font-weight: 700;
        }

        .hero-grid {
            position: relative;
            z-index: 1;
            display: grid;
            grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.85fr);
            gap: 32px;
            align-items: center;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 18px;
            padding: 7px 12px;
            border: 1px solid rgba(255, 200, 87, 0.36);
            border-radius: 999px;
            color: var(--amber);
            background: rgba(255, 200, 87, 0.08);
            font-size: 0.92rem;
            font-weight: 700;
        }

        h1 {
            margin: 0 0 18px;
            max-width: 760px;
            font-size: clamp(2.2rem, 6vw, 4.9rem);
            line-height: 0.95;
            letter-spacing: -0.06em;
        }

        h1 span {
            color: var(--green);
        }

        .lead {
            margin: 0;
            max-width: 690px;
            color: var(--muted);
            font-size: 1.1rem;
        }

        .radar-card {
            position: relative;
            min-height: 310px;
            padding: 24px;
            border: 1px solid var(--line);
            border-radius: 24px;
            background: radial-gradient(circle, rgba(147, 255, 70, 0.18) 0 1px, transparent 2px), rgba(5, 8, 5, 0.58);
            background-size: 24px 24px;
        }

        .hero-illustration {
            position: absolute;
            inset: 18px;
            width: calc(100% - 36px);
            height: calc(100% - 36px);
            opacity: 0.95;
        }

        .hero-illustration text {
            font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
            font-weight: 700;
            letter-spacing: 0.05em;
        }

        .radar {
            position: absolute;
            inset: 34px;
            border: 1px solid rgba(147, 255, 70, 0.42);
            border-radius: 50%;
            background:
                linear-gradient(90deg, transparent 49.6%, rgba(147, 255, 70, 0.24) 50%, transparent 50.4%),
                linear-gradient(0deg, transparent 49.6%, rgba(147, 255, 70, 0.24) 50%, transparent 50.4%),
                radial-gradient(circle, transparent 0 34%, rgba(147, 255, 70, 0.18) 34.4% 35%, transparent 35.4% 66%, rgba(147, 255, 70, 0.16) 66.4% 67%, transparent 67.4%);
        }

        .radar::after {
            content: "";
            position: absolute;
            inset: 50% 50% 0 50%;
            width: 50%;
            height: 2px;
            transform-origin: left center;
            transform: rotate(-24deg);
            background: linear-gradient(90deg, var(--green), transparent);
            box-shadow: 0 0 18px rgba(147, 255, 70, 0.8);
        }

        .metric {
            position: absolute;
            display: inline-flex;
            flex-direction: column;
            gap: 2px;
            min-width: 128px;
            padding: 12px 14px;
            border: 1px solid rgba(147, 255, 70, 0.24);
            border-radius: 16px;
            background: rgba(10, 14, 9, 0.88);
            box-shadow: 0 16px 38px rgba(0, 0, 0, 0.28);
        }

        .metric strong {
            color: var(--green);
            font-size: 1.3rem;
        }

        .metric small {
            color: var(--muted);
            text-transform: uppercase;
            letter-spacing: 0.08em;
        }

        .metric.one {
            left: 24px;
            top: 24px;
        }

        .metric.two {
            right: 24px;
            bottom: 24px;
        }

        [data-lang-panel] {
            display: none;
        }

        body[data-lang="cs"] [data-lang-panel="cs"],
        body[data-lang="en"] [data-lang-panel="en"] {
            display: block;
        }

        .content {
            display: grid;
            grid-template-columns: repeat(2, minmax(0, 1fr));
            gap: 18px;
            margin-top: 22px;
        }

        .section {
            padding: 24px;
            border: 1px solid var(--line);
            border-radius: 22px;
            background: var(--panel);
            box-shadow: 0 18px 42px rgba(0, 0, 0, 0.18);
        }

        .section.wide {
            grid-column: 1 / -1;
        }

        .visual-band {
            display: grid;
            grid-template-columns: 0.9fr 1.1fr;
            gap: 22px;
            align-items: center;
            margin-top: 22px;
            padding: 24px;
            border: 1px solid var(--line);
            border-radius: 24px;
            background:
                linear-gradient(135deg, rgba(147, 255, 70, 0.12), rgba(10, 14, 9, 0.92)),
                radial-gradient(circle at 18% 20%, rgba(255, 200, 87, 0.12), transparent 18rem);
            box-shadow: 0 18px 42px rgba(0, 0, 0, 0.18);
        }

        .visual-band svg {
            width: 100%;
            height: auto;
            display: block;
            filter: drop-shadow(0 18px 26px rgba(0, 0, 0, 0.3));
        }

        .visual-band h2 {
            margin-top: 0;
            font-size: clamp(1.6rem, 3vw, 2.35rem);
        }

        .picture-card {
            overflow: hidden;
            position: relative;
        }

        .picture-card::after {
            content: "";
            position: absolute;
            inset: auto 18px 18px auto;
            width: 86px;
            height: 86px;
            border-radius: 50%;
            border: 1px solid rgba(147, 255, 70, 0.28);
            background: radial-gradient(circle, rgba(147, 255, 70, 0.18), transparent 68%);
        }

        h2 {
            margin: 0 0 12px;
            color: var(--text);
            font-size: 1.34rem;
        }

        h3 {
            margin: 18px 0 8px;
            color: var(--green);
            font-size: 1rem;
        }

        p {
            margin: 0 0 14px;
            color: var(--muted);
        }

        p:last-child {
            margin-bottom: 0;
        }

        ul {
            margin: 0;
            padding-left: 1.15rem;
            color: var(--muted);
        }

        li {
            margin-bottom: 10px;
        }

        strong {
            color: var(--text);
        }

        a {
            color: var(--green);
            text-decoration: none;
        }

        a:hover {
            text-decoration: underline;
        }

        .notice {
            border-color: rgba(255, 200, 87, 0.42);
            background: linear-gradient(135deg, rgba(255, 200, 87, 0.12), rgba(20, 27, 19, 0.88));
        }

        .danger {
            border-color: rgba(255, 122, 102, 0.36);
        }

        footer {
            margin: 28px 0 0;
            padding: 22px;
            color: var(--muted);
            text-align: center;
            font-size: 0.92rem;
        }

        @media (max-width: 820px) {
            body {
                padding: 12px;
            }

            .hero {
                padding: 22px;
                border-radius: 22px;
            }

            .topbar,
            .hero-grid,
            .content,
            .visual-band {
                grid-template-columns: 1fr;
            }

            .topbar {
                align-items: flex-start;
                flex-direction: column;
            }

            .language-switcher {
                justify-content: flex-start;
            }

            .radar-card {
                min-height: 260px;
            }
        }