:root{color:#fff;font-synthesis:none;text-rendering:optimizelegibility;background:#000;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html,body,#root{min-height:100%}body{background:#000;min-width:320px;min-height:100vh;margin:0}button,input,select{font:inherit}.app-background{background-position:50%;background-size:cover;background-attachment:fixed;min-height:100vh;transition:background-image .5s}.app{width:min(1400px,92%);margin:0 auto;padding:46px 0 60px}.hero{margin-bottom:36px}.brand{align-items:center;gap:18px;display:flex}.brand-icon{color:#ffd600;background:#000000bf;border:2px solid #ffd600;border-radius:18px;justify-content:center;align-items:center;width:66px;height:66px;font-size:2rem;display:flex;position:relative;box-shadow:0 0 30px #ffd6002e}.brand-icon span{color:#fff;font-size:.85rem;font-weight:900;position:absolute;bottom:4px;right:8px}.hero-label{color:#ffd600;letter-spacing:.14rem;text-transform:uppercase;margin:0 0 7px;font-size:.82rem;font-weight:800}.hero h1{color:#fff;margin:0;font-size:clamp(2.5rem,5vw,4.6rem);line-height:1}.hero-description{color:#d1d1d1;max-width:650px;margin-top:18px;font-size:1.05rem;line-height:1.7}.app-grid{grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr);align-items:start;gap:24px;display:grid}.panel{-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#000c;border:1px solid #ffd60038;border-radius:18px;padding:28px;box-shadow:0 24px 70px #0000008c}.panel h2{color:#fff;margin-top:0}.calculator-panel h3{color:#ffd600;margin-top:28px}.calculator-form{gap:18px;display:grid}.form-group{flex-direction:column;gap:8px;margin-bottom:18px;display:flex}.form-group label{color:#eee;font-size:.9rem;font-weight:600}.form-group input,.form-group select,.calculator-panel select{color:#fff;background:#0c0c0cf2;border:1px solid #444;border-radius:10px;outline:none;width:100%;padding:13px 14px;transition:border-color .2s,box-shadow .2s}.form-group input:focus,.form-group select:focus,.calculator-panel select:focus{border-color:#ffd600;box-shadow:0 0 0 3px #ffd60024}.primary-button{color:#000;cursor:pointer;background:#ffd600;border:none;border-radius:10px;padding:14px 20px;font-size:1rem;font-weight:800;transition:transform .15s,box-shadow .15s}.primary-button:hover{transform:translateY(-2px);box-shadow:0 10px 30px #ffd60040}.primary-button:disabled{opacity:.55;cursor:not-allowed}.result-card{background:#ffd60014;border:1px solid #ffd600;border-radius:14px;margin-top:24px;padding:22px}.result-label{color:#ffd600;letter-spacing:.08rem;text-transform:uppercase;margin:0 0 8px;font-size:.8rem;font-weight:800}.result-value{color:#fff;word-break:break-word;margin:0;font-size:clamp(1.4rem,3vw,2rem);font-weight:800}.result-value span{color:#ffd600;font-size:1rem}.error-message{color:#faa;background:#b414142e;border:1px solid #ff505059;border-radius:8px;padding:12px 14px}.history-panel{max-height:780px;overflow-y:auto}.history-card{background:#080808e0;border:1px solid #ffd60026;border-radius:12px;margin-bottom:16px;padding:18px}.history-card h3{color:#ffd600;margin-top:0}.history-card h4{color:#fff;margin-bottom:6px}.history-card p{color:#ccc;margin:6px 0;font-size:.9rem}sup{font-size:.65em;position:relative;top:-.2em}@media (width<=900px){.app-grid{grid-template-columns:1fr}.history-panel{max-height:none}.brand{align-items:flex-start}.brand-icon{flex-shrink:0;width:54px;height:54px}}.navigation{z-index:100;justify-content:flex-end;margin-bottom:24px;display:flex;position:relative}.menu-button{color:#ffd600;cursor:pointer;background:#000000d9;border:1px solid #ffd600;border-radius:12px;width:48px;height:48px;font-size:1.5rem}.menu-button:hover{color:#000;background:#ffd600}.menu-dropdown{background:#000000f5;border:1px solid #ffd60059;border-radius:12px;flex-direction:column;min-width:220px;padding:8px;display:flex;position:absolute;top:56px;right:0;box-shadow:0 20px 50px #00000080}.menu-dropdown a{color:#fff;border-radius:8px;padding:12px 14px;font-weight:600;text-decoration:none}.menu-dropdown a:hover{color:#ffd600;background:#ffd6001f}.single-page-content{max-width:850px}.page-content{max-width:1100px;margin:0 auto}.page-header{margin-bottom:30px}.page-header h1{margin:0;font-size:clamp(2.3rem,5vw,4rem)}.page-header>p:last-child{color:#ccc;max-width:650px;line-height:1.7}.planet-biography{max-width:900px}.planet-title p{color:#ffd600;letter-spacing:.08rem;text-transform:uppercase;margin-bottom:5px;font-size:.8rem;font-weight:800}.planet-title h2{margin-top:0;font-size:2.5rem}.planet-summary{color:#ddd;max-width:800px;line-height:1.8}.planet-stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:28px 0;display:grid}.planet-stats div{background:#00000080;border:1px solid #ffd60029;border-radius:12px;flex-direction:column;gap:6px;padding:18px;display:flex}.planet-stats span{color:#aaa;font-size:.82rem}.planet-stats strong{color:#fff;font-size:1.1rem}.planet-facts h3{color:#ffd600}.planet-facts li{color:#ddd;margin:10px 0;line-height:1.6}@media (width<=650px){.planet-stats{grid-template-columns:1fr}}