:root{--bg-color: #0d1117;--sidebar-bg: rgba(22, 27, 34, .7);--card-bg: rgba(33, 38, 45, .4);--accent-color: #58a6ff;--accent-gradient: linear-gradient(135deg, #58a6ff, #bc85ff);--text-primary: #f0f6fc;--text-secondary: #8b949e;--border-color: rgba(240, 246, 252, .1);--glass-blur: blur(12px);--glass-border: 1px solid rgba(255, 255, 255, .1);--transition-fast: .2s cubic-bezier(.4, 0, .2, 1);--transition-normal: .3s cubic-bezier(.4, 0, .2, 1)}.light-theme{--bg-color: #f6f8fa;--sidebar-bg: rgba(255, 255, 255, .8);--card-bg: rgba(255, 255, 255, .5);--accent-color: #0969da;--accent-gradient: linear-gradient(135deg, #0969da, #8250df);--text-primary: #1f2328;--text-secondary: #656d76;--border-color: rgba(31, 35, 40, .1);--glass-border: 1px solid rgba(0, 0, 0, .05)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Outfit,sans-serif;background-color:var(--bg-color);color:var(--text-primary);overflow-x:hidden;min-height:100vh;display:flex;transition:background-color var(--transition-normal)}#app{display:grid;grid-template-columns:260px 1fr;width:100%;min-height:100vh}.sidebar{background:var(--sidebar-bg);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border-right:var(--glass-border);display:flex;flex-direction:column;padding:2rem 0;z-index:100}.logo{padding:0 2rem;margin-bottom:3rem;display:flex;align-items:center;gap:.75rem}.logo h1{font-size:1.5rem;font-weight:700;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.nav-links{list-style:none;flex-grow:1}.nav-links li{padding:0;cursor:pointer;display:flex;transition:all var(--transition-fast);border-left:4px solid transparent}.nav-anchor{text-decoration:none;color:inherit;display:flex;align-items:center;gap:1rem;padding:1rem 2rem;width:100%;height:100%}.nav-links li:hover{color:var(--text-primary);background:#ffffff0d}.nav-links li.active{color:var(--accent-color);background:#58a6ff1a;border-left-color:var(--accent-color)}.sidebar-footer{padding:1rem 2rem;display:flex;gap:1rem}.sidebar-footer button{background:var(--card-bg);border:var(--glass-border);color:var(--text-primary);padding:.75rem;border-radius:12px;cursor:pointer;transition:transform var(--transition-fast)}.sidebar-footer button:hover{transform:translateY(-2px);background:#ffffff1a}.content{padding:2rem;display:flex;flex-direction:column;gap:2rem;overflow-y:auto}header{display:flex;justify-content:space-between;align-items:center}#mode-name{font-size:1.75rem;font-weight:600}.glass-panel{background:var(--card-bg);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border-radius:24px;border:var(--glass-border);min-height:400px;height:auto;display:flex;flex-direction:column;box-shadow:0 8px 32px #0000001a;flex-shrink:0;position:relative;z-index:10}#calc-display{padding:2.5rem;text-align:right;border-bottom:var(--glass-border)}.current-input{font-size:3.5rem;font-weight:600;margin-top:.5rem}.previous-calc{color:var(--text-secondary);font-size:1.25rem;min-height:1.5rem}.keypad-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1.25rem;padding:2.5rem;flex-grow:1}.keypad-grid.scientific-grid{grid-template-columns:repeat(5,1fr);grid-template-rows:repeat(6,1fr);gap:.75rem;padding:1.5rem}.scientific-grid .calc-btn{font-size:1.15rem;padding:1.15rem 0;border-radius:14px}.calc-btn{background:var(--card-bg);border:var(--glass-border);color:var(--text-primary);font-size:1.5rem;font-weight:500;padding:1.5rem 0;border-radius:18px;cursor:pointer;transition:all var(--transition-fast);display:flex;justify-content:center;align-items:center;box-shadow:0 4px 6px #0000000d}.calc-btn:hover{background:#ffffff14;transform:translateY(-2px);box-shadow:0 6px 12px #0000001a}.calc-btn:active{transform:translateY(0)}.calc-btn.operator{background:#58a6ff1a;color:var(--accent-color)}.calc-btn.operator:hover{background:#58a6ff33}.calc-btn.equals{background:var(--accent-gradient);color:#fff;font-weight:700;grid-column:span 1}.calc-btn.equals:hover{filter:brightness(1.1);box-shadow:0 0 20px #58a6ff66}.calc-btn.number{font-weight:400}.calc-btn.clear{color:#ff7b72}.history-panel{position:fixed;right:0;top:0;width:320px;height:100vh;background:var(--sidebar-bg);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);border-left:var(--glass-border);padding:2rem;transition:transform var(--transition-normal);z-index:1000}.history-panel.hidden{transform:translate(100%)}.history-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.history-header button{background:transparent;border:none;color:var(--accent-color);cursor:pointer;font-weight:600}.history-header button:hover{text-decoration:underline}#history-list{display:flex;flex-direction:column;gap:1.5rem;overflow-y:auto;max-height:calc(100vh - 120px);padding-right:.5rem}.history-item{background:#ffffff08;padding:1rem;border-radius:12px;border:1px solid rgba(255,255,255,.05)}.history-expr{font-size:.9rem;color:var(--text-secondary);margin-bottom:.25rem}.history-res{font-size:1.25rem;font-weight:600;color:var(--accent-color)}.history-time{font-size:.75rem;color:var(--text-secondary);margin-top:.5rem;text-align:right}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#ffffff1a;border-radius:10px}::-webkit-scrollbar-thumb:hover{background:#fff3}.graph-input-container{display:flex;gap:1rem;align-items:center}.glass-input{background:#ffffff0d;border:var(--glass-border);border-radius:12px;padding:.75rem 1rem;color:var(--text-primary);flex-grow:1;font-size:1rem}.glass-input:focus{outline:none;border-color:var(--accent-color);background:#ffffff14}#plot-btn{background:var(--accent-gradient);border:none;color:#fff;padding:.75rem 1.5rem;border-radius:12px;cursor:pointer;font-weight:600;transition:transform var(--transition-fast)}#plot-btn:hover{transform:translateY(-2px);filter:brightness(1.1)}.graph-canvas-container{padding:1rem;background:#0003;border-radius:18px;margin-top:1rem}.currency-row{display:flex;gap:.8rem;align-items:center}.currency-flag-box{width:40px;height:30px;border-radius:6px;overflow:hidden;border:1px solid rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;background:#0003}.currency-flag-box img{height:100%;width:100%;object-fit:cover}.pill-btn{background:#ffffff0d;border:var(--glass-border);border-radius:20px;padding:.4rem .8rem;color:var(--text-secondary);font-size:.75rem;cursor:pointer;transition:all var(--transition-fast)}.pill-btn:hover{background:var(--accent-color);color:#fff;transform:translateY(-1px)}.glass-select{background:#ffffff0d;border:var(--glass-border);border-radius:12px;padding:.75rem;color:var(--text-primary);width:90px;cursor:pointer}.glass-select option{background:var(--bg-color);color:var(--text-primary)}.currency-swap{text-align:center;font-size:1.5rem;color:var(--accent-color);cursor:pointer;-webkit-user-select:none;user-select:none;transition:transform var(--transition-fast);padding:.5rem;width:fit-content;margin:0 auto}.currency-swap:hover{transform:scale(1.2)}.finance-tabs{background:#ffffff08;padding:.25rem;border-radius:14px;border:var(--glass-border);overflow-x:auto;white-space:nowrap;scrollbar-width:none}.finance-tabs::-webkit-scrollbar{display:none}.tab-btn{background:transparent;border:none;color:var(--text-secondary);padding:.6rem 1.2rem;border-radius:10px;cursor:pointer;font-weight:500;transition:all var(--transition-fast);white-space:nowrap}.tab-btn.active{background:var(--accent-gradient);color:#fff;box-shadow:0 4px 12px #58a6ff33}.finance-input-group{display:flex;flex-direction:column;gap:.5rem;margin-bottom:1rem}.finance-input-group label{font-size:.9rem;color:var(--text-secondary)}.finance-result-card{background:#58a6ff1a;padding:1.5rem;border-radius:16px;border:1px solid rgba(88,166,255,.2);margin-top:1rem;text-align:center}.result-val{font-size:2rem;font-weight:700;color:var(--accent-color);display:block;margin-top:.5rem}.base-row{font-family:JetBrains Mono,monospace;font-size:.9rem;color:var(--text-secondary);padding:.4rem .75rem;border-radius:6px;cursor:pointer;display:flex;justify-content:space-between;transition:all var(--transition-fast)}.base-row span{color:var(--text-primary);font-weight:500}.base-row.active{background:#58a6ff26;color:var(--accent-color);border-left:3px solid var(--accent-color)}.base-row.active span{color:var(--accent-color);font-weight:700}.prog-keypad-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:.75rem}.small-pill{background:#ffffff0d;border:var(--glass-border);border-radius:8px;padding:.3rem .6rem;font-size:.7rem;color:var(--text-secondary);cursor:pointer;text-transform:uppercase;font-weight:600;transition:all var(--transition-fast)}.small-pill.active{background:var(--accent-color);color:#fff;border-color:var(--accent-color)}.prog-layout{display:flex;flex-direction:column;gap:1rem;padding:1.5rem}.placeholder-msg{font-size:1.25rem;opacity:.7}.app-info-section{margin-top:3rem;padding:2rem;background:#ffffff05;border-radius:24px;border:1px solid rgba(255,255,255,.05)}.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.5rem;margin-bottom:3rem}.info-card{background:#ffffff08;padding:1.5rem;border-radius:18px;border:1px solid rgba(255,255,255,.05);transition:transform .3s ease,background .3s ease}.info-card:hover{transform:translateY(-5px);background:#ffffff0d;border-color:var(--accent-color)}.info-icon{font-size:2rem;margin-bottom:1rem;display:block}.info-card h3{font-size:1.25rem;margin-bottom:1rem;color:var(--accent-color)}.info-card p{font-size:.95rem;color:var(--text-secondary);line-height:1.6;margin-bottom:1rem}.info-list{padding-left:1.2rem;color:var(--text-secondary);font-size:.9rem}.info-list li{margin-bottom:.5rem}.seo-footer{text-align:center;max-width:800px;margin:0 auto;padding:2rem;border-top:1px solid rgba(255,255,255,.05)}.seo-footer h4{font-size:1.5rem;margin-bottom:1rem;color:var(--text-primary)}.seo-footer p{color:var(--text-secondary);line-height:1.6}@media (max-width: 1024px){#app{grid-template-columns:80px 1fr}.logo{padding:0;justify-content:center}.logo h1,.nav-links li span:not(.icon){display:none}.nav-links li{justify-content:center;padding:1.5rem 0}}@media (max-width: 768px){#app{grid-template-columns:1fr;grid-template-rows:1fr auto;overflow:hidden}.sidebar{background:#161b22f2;-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-right:none;border-top:var(--glass-border);flex-direction:row;height:70px;padding:0;position:fixed;bottom:0;left:0;width:100%;z-index:1000}.logo{display:none}.nav-links{display:flex;flex-direction:row;width:100%;justify-content:space-around;padding:0}.nav-links li{flex-direction:column;padding:.5rem;gap:.25rem;font-size:.7rem}.nav-links li span:not(.icon){display:block;font-size:.6rem}.sidebar-footer{display:none}.content{padding:1rem;padding-bottom:120px;height:auto;min-height:100vh;overflow-y:visible}body{overflow-y:auto}.glass-panel{min-height:unset;height:auto}#calc-display{padding:1.5rem}.current-input{font-size:2.5rem}.keypad-grid{padding:1.25rem;gap:.75rem}.calc-btn{font-size:1.25rem;padding:1.25rem 0}.app-info-section{padding:1.5rem;margin-top:2rem}.info-grid{grid-template-columns:1fr;gap:1rem}.info-card{padding:1.25rem}.prog-layout{padding:1rem;gap:1rem}}@media (max-width: 480px){.current-input{font-size:2rem}.keypad-grid{gap:.5rem;padding:1rem}.keypad-grid.scientific-grid{grid-template-columns:repeat(4,1fr)}}