@import"https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700&display=swap";:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:light dark;color:#ffffffde;background-color:#242424;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:flex;place-items:center;min-width:320px;min-height:100vh}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}*{box-sizing:border-box;margin:0;padding:0}body,html,#root{height:100%;width:100%;font-family:Orbitron,sans-serif}.app{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;padding:20px;transition:background .5s ease}.theme-selector{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin-bottom:20px}.theme-btn{padding:8px 16px;border-radius:10px;border:2px solid transparent;color:#fff;cursor:pointer;font-weight:600;font-size:14px;transition:all .3s ease}.theme-btn:hover{transform:scale(1.05)}.calculator{background:#0f0f14e6;border:2px solid;border-radius:20px;-webkit-backdrop-filter:blur(15px);backdrop-filter:blur(15px);padding:25px;width:90vw;max-width:420px;transition:all .3s ease}.display{background:#000000b3;border:1px solid;border-radius:12px;padding:20px;font-size:32px;text-align:right;margin-bottom:15px;font-weight:600;overflow-x:auto;white-space:nowrap}.buttons{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.calc-btn{background:#ffffff14;border:1px solid transparent;border-radius:12px;padding:18px;font-size:20px;font-weight:600;cursor:pointer;transition:all .25s ease}.calc-btn:hover{background:#fff3;transform:translateY(-2px);box-shadow:0 0 20px #fff3}.bottom-row{display:flex;gap:10px;margin-top:10px}.clear{flex:1;background:#ffffff1a;text-align:center;padding:18px 0;border-radius:12px;font-weight:600;cursor:pointer}.equal{flex:1;background:#0096ffcc;color:#fff;text-align:center;padding:18px 0;border-radius:12px;font-weight:600;cursor:pointer;transition:all .25s ease}.equal:hover{background:#00b4ffe6;transform:translateY(-2px);box-shadow:0 0 20px #00b4ff4d}.footer{margin-top:15px;font-size:13px;text-align:center}@media (max-width: 768px){.calculator{max-width:360px;padding:20px}.display{font-size:28px;padding:16px}.calc-btn,.clear,.equal{padding:16px 0;font-size:18px}}@media (max-width: 480px){.calculator{max-width:300px;padding:18px}.display{font-size:24px;padding:14px}.calc-btn,.clear,.equal{padding:14px 0;font-size:16px}.theme-btn{font-size:12px;padding:6px 10px}}