:root{--bg: #0a0a0f;--surface: #12121a;--border: #1e1e2e;--primary: #f7931a;--primary-hover: #e8850f;--text-primary: #e8e8ec;--text-secondary: #8888a0;--success: #00c853;--error: #ff5252}*{margin:0;padding:0;box-sizing:border-box}html,body,#root{min-height:100vh;height:100%}body{background:var(--bg);color:var(--text-primary);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.app{max-width:1200px;margin:0 auto;padding:0 40px;min-height:100vh;display:flex;flex-direction:column}.app>main{flex:1}.navbar{display:flex;justify-content:space-between;align-items:center;padding:16px 0;border-bottom:1px solid var(--border)}.logo{color:var(--primary);text-decoration:none;font-weight:700;font-size:18px}.nav-links{display:flex;align-items:center;gap:16px}.nav-links a{color:var(--text-secondary);text-decoration:none;font-size:14px;transition:color .2s}.nav-links a:hover{color:var(--text-primary)}.connect-btn,.primary-btn{background:var(--primary);color:#000;border:none;padding:10px 20px;border-radius:8px;font-weight:600;cursor:pointer;font-size:14px;transition:background .2s}.connect-btn:hover,.primary-btn:hover{background:var(--primary-hover)}.connect-btn:disabled,.primary-btn:disabled{opacity:.5;cursor:not-allowed}.secondary-btn{background:transparent;color:var(--text-primary);border:1px solid var(--border);padding:10px 20px;border-radius:8px;cursor:pointer;font-size:14px;transition:all .2s}.secondary-btn:hover{border-color:var(--primary);color:var(--primary)}.disconnect-btn{background:none;border:none;color:var(--text-secondary);cursor:pointer;font-size:16px}.wallet-connected{display:flex;align-items:center;gap:8px;background:var(--surface);padding:8px 12px;border-radius:8px}.wallet-addr{font-family:monospace;font-size:13px;color:var(--primary)}.hero{text-align:center;padding:80px 0 40px}.hero h1{font-size:48px;margin-bottom:16px}.hero .subtitle{color:var(--text-secondary);font-size:18px;max-width:650px;margin:0 auto 32px}.hero-actions{display:flex;gap:12px;justify-content:center}.features{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:40px 0}.feature{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:24px;text-align:center}.feature-icon{font-size:32px;display:block;margin-bottom:12px}.feature h3{margin-bottom:8px}.feature p{color:var(--text-secondary);font-size:14px}.card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:24px;margin:20px 0}.card h2{margin-bottom:16px}.info-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.info-item{padding:12px}.info-item strong{display:block;margin-bottom:4px}.info-item p{color:var(--text-secondary);font-size:14px}.page{padding:32px 0 60px}.form-group{margin:16px 0}.form-group label{display:block;margin-bottom:6px;font-size:14px;color:var(--text-secondary)}.form-group input,.form-group textarea{width:100%;padding:12px;background:var(--bg);border:1px solid var(--border);border-radius:8px;color:var(--text-primary);font-size:14px;font-family:monospace}.form-group textarea{resize:vertical}.message-box{display:flex;align-items:flex-start;gap:8px;background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:16px;margin:16px 0}.message-box code{flex:1;font-size:14px;word-break:break-all;color:var(--primary)}.copy-btn{background:var(--surface);border:1px solid var(--border);padding:6px 12px;border-radius:6px;cursor:pointer;color:var(--text-primary);font-size:13px;white-space:nowrap}.status-box{text-align:center;padding:32px}.spinner{width:32px;height:32px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .7s linear infinite;margin:0 auto 12px}@keyframes spin{to{transform:rotate(360deg)}}.success-box{background:#00c8530d;border:1px solid rgba(0,200,83,.2);border-radius:12px;padding:20px;margin:16px 0}.success-box h3{color:var(--success);margin-bottom:12px}.error-box{background:#ff52520d;border:1px solid rgba(255,82,82,.2);border-radius:12px;padding:20px;margin:16px 0}.proof-details{display:flex;flex-direction:column;gap:8px}.detail{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid var(--border)}.detail .label{color:var(--text-secondary);font-size:14px}.detail code{font-size:13px}.bracket-badge{font-size:18px;font-weight:700}.bracket-badge.large{font-size:28px}.privacy-note{background:#f7931a0d;border:1px solid rgba(247,147,26,.2);border-radius:8px;padding:12px;margin:16px 0;font-size:14px}.note{color:var(--text-secondary);font-size:13px}.tx-link{display:inline-block;color:var(--primary);text-decoration:none;margin-top:8px}.tx-link:hover{text-decoration:underline}.sbt-preview{display:flex;justify-content:center;margin-top:24px}.sbt-card{width:200px;padding:32px 24px;border-radius:16px;text-align:center;background:linear-gradient(135deg,var(--surface),var(--bg));border:2px solid var(--primary)}.sbt-emoji{font-size:48px;display:block;margin-bottom:8px}.sbt-label{font-size:18px;font-weight:700;display:block}.sbt-sub{font-size:12px;color:var(--text-secondary);display:block;margin-top:4px}.brackets-showcase{margin:40px 0;text-align:center}.brackets-showcase h2{margin-bottom:20px}.brackets{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.bracket-card{padding:20px;border-radius:12px;background:var(--surface);border:1px solid var(--border);min-width:100px;text-align:center;transition:transform .2s}.bracket-card:hover{transform:translateY(-4px)}.bracket-emoji{font-size:32px;display:block;margin-bottom:6px}.bracket-name{font-weight:700;display:block;margin-bottom:4px}.bracket-range{font-size:12px;color:var(--text-secondary)}.result-box{border-radius:12px;padding:24px;margin:16px 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