:root {
            --ink: #17202f;
            --muted: #637083;
            --line: #dbe2eb;
            --paper: #f7f9fc;
            --panel: #ffffff;
            --accent: #0c8f8f;
            --accent-dark: #07696e;
            --rose: #c85b72;
            --green: #27885a;
            --shadow: 0 24px 70px rgba(23, 32, 47, .18);
        }

        * { box-sizing: border-box; }

        body {
            min-height: 100vh;
            margin: 0;
            color: var(--ink);
            background:
                radial-gradient(circle at 15% 10%, rgba(12, 143, 143, .2), transparent 26rem),
                radial-gradient(circle at 88% 12%, rgba(200, 91, 114, .16), transparent 24rem),
                linear-gradient(180deg, #fbfcfe 0%, #edf3f7 100%);
            font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
            line-height: 1.5;
        }

        .page {
            display: grid;
            place-items: center;
            min-height: 100vh;
            padding: 32px 16px;
        }

        .access-card {
            width: min(460px, 100%);
            border: 1px solid rgba(219, 226, 235, .9);
            border-radius: 8px;
            background: rgba(255, 255, 255, .92);
            box-shadow: var(--shadow);
            overflow: hidden;
        }

        .card-top {
            padding: 28px 28px 18px;
            text-align: center;
        }

        .mark {
            display: grid;
            place-items: center;
            width: 54px;
            height: 54px;
            margin: 0 auto 18px;
            border-radius: 8px;
            color: #fff;
            background: linear-gradient(135deg, var(--accent), #316fc2);
            font-weight: 900;
            box-shadow: 0 14px 28px rgba(12, 143, 143, .24);
        }

        h1 {
            margin: 0;
            font-size: 26px;
            line-height: 1.12;
            letter-spacing: 0;
        }

        p {
            margin: 12px 0 0;
            color: var(--muted);
            font-size: 14px;
        }

        form {
            padding: 0 28px 28px;
        }

        label {
            display: block;
            margin-bottom: 8px;
            color: var(--muted);
            font-size: 12px;
            font-weight: 800;
            letter-spacing: .06em;
            text-transform: uppercase;
        }

        .input-row {
            display: grid;
            grid-template-columns: minmax(0, 1fr) auto;
            gap: 10px;
        }

        input {
            min-width: 0;
            min-height: 46px;
            border: 1px solid var(--line);
            border-radius: 8px;
            padding: 0 12px;
            color: var(--ink);
            background: #fff;
            font: inherit;
        }

        input:focus {
            outline: 3px solid rgba(12, 143, 143, .14);
            border-color: rgba(12, 143, 143, .55);
        }

        button {
            min-height: 46px;
            border: 0;
            border-radius: 8px;
            padding: 0 16px;
            color: #fff;
            background: var(--ink);
            font: inherit;
            font-size: 14px;
            font-weight: 800;
            cursor: pointer;
            box-shadow: 0 12px 24px rgba(23, 32, 47, .18);
        }

        .error,
        .setup-warning {
            margin-top: 12px;
            border-radius: 8px;
            padding: 10px 12px;
            font-size: 13px;
        }

        .error {
            color: #9f4055;
            background: rgba(200, 91, 114, .12);
        }

        .setup-warning {
            color: #8a5b0f;
            background: rgba(206, 138, 24, .14);
        }

        .meta {
            border-top: 1px solid var(--line);
            padding: 14px 18px;
            color: var(--muted);
            background: rgba(247, 249, 252, .84);
            text-align: center;
            font-size: 12px;
        }

        @media (max-width: 520px) {
            .input-row {
                grid-template-columns: 1fr;
            }
        }