:root{--background:#0f172a;--surface:#1e293b99;--border:#ffffff1a;--text-main:#f8fafc;--text-muted:#94a3b8;--primary:#6366f1;--success:#10b981}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--background);color:var(--text-main);background-image:radial-gradient(at 50% 0,#6366f126 0,#0000 50%);min-height:100vh;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.app-container{max-width:800px;margin:0 auto;padding:4rem 2rem}.header{text-align:center;margin-bottom:3rem;animation:.6s ease-out 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var(--border);width:100%;color:var(--text-main);background:#0003;border-radius:12px;padding:1rem 1rem 1rem 3rem;font-size:1rem;transition:all .2s}.search-input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #6366f133}.results-list{border-radius:12px;max-height:400px;list-style:none;overflow-y:auto}.results-list::-webkit-scrollbar{width:8px}.results-list::-webkit-scrollbar-track{background:#0000001a;border-radius:4px}.results-list::-webkit-scrollbar-thumb{background:#fff3;border-radius:4px}.result-item{border:1px solid #0000;border-bottom-color:var(--border);cursor:pointer;background:#ffffff08;justify-content:space-between;align-items:center;padding:1rem;transition:all 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var(--border);color:var(--text-main);cursor:pointer;background:#0003;border-radius:8px;align-items:center;gap:.5rem;padding:.5rem 1rem;transition:all .2s;display:flex}.back-btn:hover{background:#ffffff1a}.loading,.error,.empty{text-align:center;color:var(--text-muted);padding:2rem}@keyframes fadeInDown{0%{opacity:0;transform:translateY(-20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.toast{background:var(--success);color:#fff;z-index:1000;border-radius:99px;padding:.75rem 1.5rem;font-weight:600;animation:.3s ease-out fadeInUp;position:fixed;bottom:2rem;left:50%;transform:translate(-50%);box-shadow:0 10px 15px -3px #0000001a}.tabs{background:#0003;border-radius:16px;gap:1rem;margin-bottom:2rem;padding:.5rem;display:flex}.tab-btn{color:var(--text-muted);cursor:pointer;background:0 0;border:none;border-radius:12px;flex:1;justify-content:center;align-items:center;gap:.5rem;padding:1rem;font-size:1rem;font-weight:600;transition:all .2s;display:flex}.tab-btn:hover{color:var(--text-main);background:#ffffff0d}.tab-btn.active{background:var(--primary);color:#fff;box-shadow:0 4px 12px #6366f14d}.yucho-desc{color:var(--text-muted);margin-bottom:2rem;line-height:1.6}.yucho-inputs{align-items:flex-end;gap:1rem;margin-bottom:2rem;display:flex}.input-group{flex-direction:column;flex:1;gap:.5rem;display:flex}.input-group label{color:var(--text-muted);font-size:.9rem;font-weight:600}.yucho-input{border:1px solid var(--border);width:100%;color:var(--text-main);letter-spacing:2px;background:#0000004d;border-radius:12px;padding:1rem;font-family:monospace;font-size:1.25rem;transition:all .2s}.yucho-input:focus{border-color:var(--primary);outline:none;box-shadow:0 0 0 3px #6366f133}.input-separator{color:var(--text-muted);padding-bottom:1rem;font-size:1.5rem}.yucho-result-card{border:1px solid var(--primary);background:#6366f11a;border-radius:16px;padding:2rem;animation:.4s ease-out fadeInUp}.result-title{color:var(--primary);text-align:center;margin-bottom:1.5rem;font-size:1.1rem}.result-grid{flex-direction:column;gap:1rem;display:flex}.result-row{background:#0003;border:1px solid #0000;border-radius:12px;justify-content:space-between;align-items:center;padding:1rem;transition:all .2s;display:flex}.result-row:hover{border-color:var(--border);background:#ffffff0d}.row-label{color:var(--text-muted);font-size:.95rem}.row-value{align-items:center;gap:1rem;font-size:1.1rem;font-weight:600;display:flex}.row-sub{color:var(--text-muted);font-size:.85rem;font-weight:400}.result-code-chip{background:var(--primary);color:#fff;border-radius:8px;align-items:center;gap:.5rem;padding:.4rem .8rem;font-family:monospace;font-size:1.1rem;display:flex}.result-code-chip.large{padding:.5rem 1rem;font-size:1.5rem}.cursor-pointer{cursor:pointer}.amazon-pc-ad{color:var(--text-main);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);background:#0003;border:1px solid #ffffff1a;border-radius:16px;align-items:center;gap:1.5rem;width:100%;margin:4rem auto;padding:1.5rem;text-decoration:none;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex}.amazon-pc-ad:hover{background:#ffffff0d;border-color:#fff3;transform:translateY(-2px);box-shadow:0 10px 30px -10px #0000004d}.amazon-ad-icon{color:#fff;background:linear-gradient(135deg,#f59e0b,#d97706);border-radius:12px;flex-shrink:0;justify-content:center;align-items:center;width:48px;height:48px;display:flex;box-shadow:0 4px 12px #f59e0b4d}.amazon-ad-text{flex-direction:column;gap:.25rem;display:flex}.amazon-ad-badge{color:#f59e0b;letter-spacing:.05em;text-transform:uppercase;font-size:.75rem;font-weight:700}.amazon-ad-title{font-size:1.1rem;font-weight:600}