:root{--bg-color:#fff;--text-color:#333;--nav-bg:#f8f9fa;--border-color:#e0e0e0;--accent-color:#007bff;--accent-hover:#0056b3}*{box-sizing:border-box;padding:0;margin:0}body,html{max-width:100vw;overflow-x:hidden;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol;background:var(--bg-color);color:var(--text-color)}.container{display:flex;flex-direction:column;min-height:100vh}.header{padding:40px 20px;text-align:center;border-bottom:1px solid var(--border-color)}.header h1{font-size:2.5rem;font-weight:700;color:#1a1a1a}.nav{padding:15px;background-color:var(--nav-bg);border-bottom:1px solid var(--border-color);position:-webkit-sticky;position:sticky;top:0;z-index:10}.nav,.nav-buttons{display:flex;justify-content:center}.nav-buttons{gap:10px;flex-wrap:wrap}.nav-button{padding:10px 20px;background:#fff;border:1px solid var(--border-color);border-radius:6px;cursor:pointer;font-size:16px;transition:all .2s ease;color:var(--text-color)}.nav-button:hover{border-color:var(--accent-color);color:var(--accent-color)}.nav-button.active{background-color:var(--accent-color);color:#fff;border-color:var(--accent-color)}.content{flex:1 1;padding:40px 20px;max-width:800px;margin:0 auto;width:100%}.search-container{text-align:center}.search-description{margin-bottom:20px;font-size:1.1rem;color:#666}.search-box{display:flex;gap:10px;max-width:500px;margin:0 auto}.search-input{flex:1 1;padding:12px 16px;border:2px solid var(--border-color);border-radius:8px;font-size:16px;outline:none;transition:border-color .2s}.search-input:focus{border-color:var(--accent-color)}.search-button{padding:12px 24px;background-color:var(--accent-color);color:#fff;border:none;border-radius:8px;font-size:16px;font-weight:600;cursor:pointer;transition:background-color .2s}.search-button:hover{background-color:var(--accent-hover)}.search-button:disabled{background-color:#ccc;cursor:not-allowed}.results-area{margin-top:40px;border-top:2px dashed var(--border-color);padding-top:30px;animation:fadeIn .5s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.result-card{background:#fff;border:1px solid var(--border-color);border-radius:12px;padding:24px;box-shadow:0 4px 12px rgba(0,0,0,.05);display:flex;justify-content:space-around}.result-item{text-align:center}.result-label{display:block;font-size:.9rem;color:#666;margin-bottom:8px}.result-value{font-size:1.8rem;font-weight:700;color:#1a1a1a}.back-button{margin-top:30px;background:none;border:1px solid var(--accent-color);color:var(--accent-color);padding:10px 24px;border-radius:6px;cursor:pointer;font-size:16px;transition:all .2s}.back-button:hover{background:var(--accent-color);color:#fff}@media (max-width:600px){.header h1{font-size:1.8rem}.nav-buttons{gap:8px}.nav-button{padding:8px 12px;font-size:14px}.search-box{flex-direction:column}}