:root {
            --bg: #f5f7fb;
            --panel: #ffffff;
            --text: #101828;
            --muted: #667085;
            --border: #d9e0ea;
            --accent: #0b6ea8;
            --danger: #b42318;
        }

        * {
            box-sizing: border-box;
        }

        body {
            margin: 0;
            min-height: 100vh;
            font-family: Arial, Helvetica, sans-serif;
            color: var(--text);
            background: var(--bg);
        }

        .page {
            min-height: 100vh;
            display: grid;
            place-items: center;
            padding: 24px;
        }

        .login {
            width: 100%;
            max-width: 380px;
            background: var(--panel);
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 24px;
            box-shadow: 0 12px 30px rgba(16, 24, 40, 0.08);
        }

        h1 {
            margin: 0 0 8px;
            font-size: 28px;
            line-height: 1.2;
        }

        p {
            margin: 0 0 20px;
            color: var(--muted);
            font-size: 15px;
            line-height: 1.5;
        }

        label {
            display: block;
            margin: 0 0 6px;
            font-size: 14px;
            font-weight: 700;
        }

        input {
            width: 100%;
            min-height: 42px;
            margin: 0 0 14px;
            padding: 10px 12px;
            border: 1px solid var(--border);
            border-radius: 6px;
            font-size: 15px;
            color: var(--text);
            background: #fff;
        }

        input:focus {
            outline: 2px solid rgba(11, 110, 168, 0.18);
            border-color: var(--accent);
        }

        button {
            width: 100%;
            min-height: 42px;
            border: 0;
            border-radius: 6px;
            padding: 10px 16px;
            color: #fff;
            background: var(--accent);
            font-size: 15px;
            font-weight: 700;
            cursor: pointer;
        }

        button:hover {
            background: #075985;
        }

        .error {
            margin: 0 0 14px;
            padding: 10px 12px;
            border: 1px solid rgba(180, 35, 24, 0.25);
            border-radius: 6px;
            color: var(--danger);
            background: #fff4f3;
            font-size: 14px;
            font-weight: 700;
        }