@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&display=swap";@import "https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600&display=swap";:root{--bg-color:#f2f2f7;--calc-bg:#fff;--calc-border:#0000000d;--btn-bg:#e5e5ea;--btn-hover:#d1d1d6;--btn-active:#c7c7cc;--text-primary:#1c1c1e;--text-secondary:#8e8e93;--operator-color:#ff9f0a;--operator-hover:#ffb340;--special-color:#d1d1d6;--glass-shadow:0 10px 40px #00000014;--glass-blur:blur(20px);--font-family:"Outfit", -apple-system, BlinkMacSystemFont, sans-serif;--primary-button:#007aff;--primary-button-hover:#0056b3}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-color);color:var(--text-primary);-webkit-user-select:none;user-select:none;-webkit-font-smoothing:antialiased;justify-content:center;align-items:center;min-height:100vh;display:flex;overflow:hidden}.app-container{justify-content:center;align-items:center;width:100vw;height:100vh;display:flex;position:relative}.bg-blob{filter:blur(80px);z-index:-1;opacity:.6;animation:10s ease-in-out infinite alternate float;position:absolute}.blob-1{width:300px;margin:0;overflow:hidden}#root{justify-content:center;align-items:center;width:100%;height:100%;display:flex}@keyframes fadeIn{0%{opacity:0;transform:scale(.98)translateY(10px)}to{opacity:1;transform:scale(1)translateY(0)}}.fade-in{animation:.4s cubic-bezier(.16,1,.3,1) forwards fadeIn}.calculator{background:var(--calc-bg);width:100%;max-width:400px;height:100vh;max-height:850px;-webkit-backdrop-filter:var(--glass-blur);border:1px solid var(--calc-border);box-shadow:var(--glass-shadow);border-radius:40px;flex-direction:column;padding:32px 20px 40px;display:flex;position:relative;overflow:hidden}@media (width<=450px){.calculator{border:none;border-radius:0;height:100vh;max-height:100vh}}.display{flex-direction:column;flex:1;justify-content:flex-end;align-items:flex-end;margin-bottom:20px;padding:20px 10px;display:flex}.display-equation{color:var(--text-secondary);letter-spacing:1px;min-height:2.2rem;font-size:1.8rem;font-weight:300}.display-current{color:var(--text-primary);word-break:break-all;letter-spacing:-2px;font-size:5.5rem;font-weight:300;line-height:1.1;transition:font-size .2s}.display-current.long-text{font-size:3rem}.keypad{grid-template-columns:repeat(4,1fr);gap:14px;display:grid}.btn{background:var(--primary-button);color:#fff;cursor:pointer;border:none;border-radius:8px;padding:12px 24px;font-size:1rem;font-weight:500;transition:all .2s;box-shadow:0 2px 8px #007aff33}.btn:hover{background:var(--primary-button-hover)}.btn-special{background:var(--special-color);color:var(--text-primary);box-shadow:none}.btn-special:hover{background:var(--btn-hover)}.btn-operator{background:var(--operator-color);color:#fff}.btn-operator:hover{background:var(--operator-hover)}.calc-btn{background:var(--btn-bg);color:var(--text-primary);aspect-ratio:1;cursor:pointer;border:none;border-radius:50%;justify-content:center;align-items:center;font-size:2rem;font-weight:400;transition:all .1s cubic-bezier(.25,.46,.45,.94);display:flex;box-shadow:0 2px 6px #0000000d}.calc-btn:active{background:var(--btn-active);transform:scale(.92)}.calc-btn:hover{background:var(--btn-hover)}.calc-btn-operator{background:var(--operator-color);box-shadow:0 0 0 2px #007aff33;border-color:var(--primary-button)!important}.calc-btn-operator:hover{background:var(--operator-hover)}.calc-btn-operator:active{background:#e58e09}.calc-btn-special{background:var(--special-color);color:var(--text-primary);font-weight:500}.calc-btn-zero{aspect-ratio:auto;border-radius:40px;grid-column:span 2;justify-content:flex-start;padding-left:30px}.secret-screen{-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:100;background:#fffffff2;flex-direction:column;width:100%;height:100%;padding:32px;animation:.5s cubic-bezier(.16,1,.3,1) forwards slideUp;display:flex;position:absolute;top:0;left:0}@keyframes slideUp{0%{opacity:0;transform:translateY(100%)}to{opacity:1;transform:translateY(0)}}.screen-header{text-align:center;margin-bottom:32px}.screen-header h2{color:var(--text-primary);margin-bottom:8px;font-size:2rem;font-weight:600}.screen-header p{color:var(--text-secondary);font-size:.9rem}.recording-pulse{animation:1.5s infinite pulse}@keyframes pulse{0%{transform:scale(.95);box-shadow:0 0 #d32f2fb3}70%{transform:scale(1);box-shadow:0 0 0 10px #d32f2f00}to{transform:scale(.95);box-shadow:0 0 #d32f2f00}}