/* ---------- RESET & BASE ---------- */
        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
            background-color: #fafafa;
            color: #1a1a1a;
            line-height: 1.7;
            padding: 2rem 1rem;
        }

        .container {
            max-width: 820px;
            margin: 0 auto;
            background: white;
            border-radius: 24px;
            padding: 3rem 2.5rem;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.06);
            border: 1px solid #f0f0f0;
        }

        /* ---------- TYPOGRAPHY ---------- */
        h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.15;
            letter-spacing: -0.02em;
            margin-bottom: 0.5rem;
            color: #000;
        }

        .subhead {
            font-size: 1.3rem;
            font-weight: 400;
            color: #4a4a4a;
            margin-bottom: 2rem;
            border-left: 4px solid #d32f2f;
            padding-left: 1.2rem;
        }

        h2 {
            font-size: 1.6rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            margin-top: 2.8rem;
            margin-bottom: 1rem;
            color: #000;
        }

        h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin-top: 1.8rem;
            margin-bottom: 0.4rem;
            color: #1a1a1a;
        }

        p {
            margin-bottom: 1.2rem;
            color: #2c2c2c;
        }

        /* ---------- HIGHLIGHT BOXES ---------- */
        .alert-box {
            background: #fef3f2;
            border-left: 6px solid #d32f2f;
            padding: 1.5rem 2rem;
            border-radius: 12px;
            margin: 2rem 0;
        }

        .alert-box strong {
            color: #b71c1c;
        }

        .proof-box {
            background: #f8f9fa;
            border: 2px dashed #d0d0d0;
            padding: 1.5rem 2rem;
            border-radius: 12px;
            margin: 2rem 0;
            font-family: 'Courier New', monospace;
            font-size: 1.1rem;
        }

        .proof-box span {
            background: #fff3cd;
            padding: 0.1rem 0.4rem;
            border-radius: 4px;
            font-weight: 600;
            color: #856404;
        }

        /* ---------- LISTS ---------- */
        ul {
            margin: 0.8rem 0 1.5rem 1.8rem;
        }

        ul li {
            margin-bottom: 0.6rem;
            padding-left: 0.3rem;
        }

        ul li strong {
            color: #000;
        }

        /* ---------- QUOTE / CODE BLOCK ---------- */
        .quote-block {
            background: #f2f4f8;
            padding: 1.2rem 1.8rem;
            border-radius: 10px;
            font-style: italic;
            margin: 1.5rem 0;
            border: 1px solid #e2e6ec;
            color: #1e293b;
        }

        .quote-block::before {
            content: "“";
            font-size: 2rem;
            font-weight: 800;
            color: #d32f2f;
            margin-right: 0.3rem;
        }

        /* ---------- DIVIDERS ---------- */
        hr {
            border: 0;
            height: 2px;
            background: linear-gradient(to right, #e0e0e0, transparent);
            margin: 2.5rem 0;
        }

        /* ---------- DEVELOPER NOTE (different color) ---------- */
        .dev-note {
            background: #eef2ff;
            border-left: 6px solid #4f46e5;
            padding: 1.5rem 2rem;
            border-radius: 12px;
            margin: 2rem 0;
        }

        .dev-note code {
            background: #dbe1f0;
            padding: 0.2rem 0.6rem;
            border-radius: 6px;
            font-size: 0.9rem;
            font-weight: 600;
            color: #1e293b;
        }

        /* ---------- FOOTER / DISCLAIMER ---------- */
        .footer-disclaimer {
            margin-top: 3rem;
            padding-top: 2rem;
            border-top: 2px solid #ececec;
            font-size: 0.85rem;
            color: #6b6b6b;
            line-height: 1.6;
        }

        .footer-disclaimer strong {
            color: #333;
        }

        /* ---------- RESPONSIVE ---------- */
        @media (max-width: 640px) {
            .container {
                padding: 1.8rem 1.2rem;
                border-radius: 16px;
            }

            h1 {
                font-size: 2rem;
            }

            .subhead {
                font-size: 1.1rem;
                padding-left: 0.8rem;
            }

            h2 {
                font-size: 1.3rem;
                margin-top: 2rem;
            }

            .alert-box, .proof-box, .dev-note {
                padding: 1.2rem 1.2rem;
            }

            ul {
                margin-left: 1.2rem;
            }
        }

        /* ---------- PRINT SAFE ---------- */
        @media print {
            body { background: white; padding: 0.5in; }
            .container { box-shadow: none; border: 1px solid #ccc; }
        }