:root {
            --bg: #050505; --surface: #0a0a0a; --nav-h: 72px; --mobile-cta-h: 58px;
            --gold: #D4AF37; --gold-dim: #8a702a; --bronze: #cd7f32;
            --text: #fff; --text-dim: #d0d0d0; --border: #222;
        }
        * { box-sizing: border-box; margin: 0; padding: 0; }
        body { background: var(--bg); color: var(--text); font-family: 'Source Sans 3', 'Segoe UI', system-ui, -apple-system, sans-serif; min-height: 100vh; display: flex; flex-direction: column; line-height: 1.6; }
        .page-header { padding: 48px 20px 32px; text-align: center; }
        .page-header h1 { font-family: 'Oswald', sans-serif; font-size: clamp(2.2rem, 5vw, 3.5rem); text-transform: uppercase; letter-spacing: 2px; }
        .hero-gold-gradient { background: linear-gradient(135deg, var(--gold), var(--bronze)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
        .page-lead { max-width: 560px; margin: 12px auto 0; color: var(--text-dim); font-size: 1.15rem; }
        .container { max-width: 720px; margin: 0 auto; padding: 0 20px 80px; flex-grow: 1; width: 100%; }
        .card { background: var(--surface); border: 1px solid var(--border); border-radius: 8px; padding: 28px 32px; margin-bottom: 24px; }
        .card-highlight { border-color: rgba(212,175,55,0.35); }
        .calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
        .calc-field label { display: block; font-size: 0.85rem; color: var(--text-dim); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px; }
        .calc-field input, .calc-field select { width: 100%; padding: 10px 12px; background: rgba(255,255,255,0.05); border: 1px solid var(--border); border-radius: 6px; color: var(--text); font-family: inherit; font-size: 1rem; }
        .result-panel { text-align: center; margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--border); }
        .grip-result { font-family: 'Oswald', sans-serif; font-size: 4rem; color: var(--gold); line-height: 1; }
        .grip-result.mature { color: #9ca3af; }
        .result-expected { margin-top: 14px; padding: 12px 16px; border-radius: 8px; background: rgba(212,175,55,0.08); border: 1px solid rgba(212,175,55,0.22); color: #e8d9a8; font-size: 0.98rem; line-height: 1.45; }
        .result-compare { color: var(--text-dim); margin-top: 10px; font-size: 1.05rem; }
        .tier-pill { display: inline-block; margin-top: 12px; padding: 6px 14px; border-radius: 999px; border: 1px solid var(--border); font-family: 'Roboto Mono', monospace; font-size: 0.75rem; text-transform: uppercase; }
        .btn-primary { display: inline-block; margin-top: 20px; background: linear-gradient(135deg, var(--gold), var(--bronze)); color: #000; font-weight: 700; text-transform: uppercase; padding: 12px 24px; border-radius: 8px; text-decoration: none; }
        .btn-secondary { display: inline-block; margin-top: 12px; margin-left: 10px; color: var(--bronze); border: 1px solid rgba(205,127,50,0.45); font-weight: 600; text-transform: uppercase; padding: 11px 20px; border-radius: 8px; text-decoration: none; font-size: 0.9rem; }
        .btn-secondary:hover { color: var(--gold); border-color: var(--gold); }
        footer { margin-top: auto; padding: 40px 20px; text-align: center; border-top: 1px solid var(--border); background: #0a0a0a; }
        .footer-logo { height: 72px; margin: 0 auto 12px; display: block; opacity: 0.85; }
        @media (max-width: 900px) {
            .calc-grid { grid-template-columns: 1fr; }
        }