*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,sans-serif;background:var(--background, #0f1117);color:var(--foreground, #e2e8f0);min-height:100vh}.sc-app{display:flex;flex-direction:column;min-height:100vh;background:var(--background, #0f1117)}.sc-header{background:var(--card, #1a1d2e);border-bottom:1px solid var(--border, #2d3148);padding:.875rem 1.5rem;position:sticky;top:0;z-index:50}.sc-header-inner{display:flex;align-items:center;gap:.75rem;max-width:900px;margin:0 auto}.sc-logo{font-size:1.75rem;line-height:1}.sc-title{font-size:1.25rem;font-weight:700;color:var(--foreground, #e2e8f0);letter-spacing:-.01em}.sc-nav{background:var(--card, #1a1d2e);border-bottom:1px solid var(--border, #2d3148);overflow-x:auto;scrollbar-width:none}.sc-nav::-webkit-scrollbar{display:none}.sc-nav-inner{display:flex;gap:.25rem;padding:.5rem 1rem;max-width:900px;margin:0 auto}.sc-nav-btn{display:flex;flex-direction:column;align-items:center;gap:.2rem;padding:.5rem .75rem;border:none;border-radius:.5rem;background:transparent;color:var(--muted, #94a3b8);cursor:pointer;transition:background .15s,color .15s;white-space:nowrap;flex-shrink:0}.sc-nav-btn:hover{background:#ffffff0f;color:var(--foreground, #e2e8f0)}.sc-nav-btn-active{background:var(--primary, #6366f1)!important;color:#fff!important}.sc-nav-icon{font-size:1.25rem;line-height:1}.sc-nav-label{font-size:.7rem;font-weight:600;letter-spacing:.02em}.sc-main{flex:1;padding:2rem 1rem;display:flex;justify-content:center}.sc-content{width:100%;max-width:700px}.sc-error-state{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;padding:4rem 2rem;color:var(--muted, #94a3b8);text-align:center}.sc-error-icon{font-size:3rem}.calc-basic{background:var(--card, #1a1d2e);border-radius:1.25rem;border:1px solid var(--border, #2d3148);overflow:hidden;max-width:380px;margin:0 auto;box-shadow:0 8px 32px #0006}.calc-screen{background:#0d0f1a;padding:1.25rem 1.5rem 1rem;text-align:right;min-height:100px;display:flex;flex-direction:column;justify-content:flex-end}.calc-expression{font-size:.85rem;color:var(--muted, #94a3b8);min-height:1.2em;word-break:break-all;margin-bottom:.25rem}.calc-display{font-size:2.5rem;font-weight:300;color:#fff;word-break:break-all;line-height:1.1}.calc-buttons{padding:.75rem;display:flex;flex-direction:column;gap:.5rem}.calc-row{display:grid;grid-template-columns:repeat(4,1fr);gap:.5rem}.calc-btn{height:64px;border:none;border-radius:.75rem;font-size:1.25rem;font-weight:500;cursor:pointer;transition:background .1s,transform .08s;background:#252840;color:var(--foreground, #e2e8f0);display:flex;align-items:center;justify-content:center}.calc-btn:hover{background:#2e3255}.calc-btn:active{transform:scale(.95)}.calc-btn-fn{background:#2a2d45;color:var(--foreground, #e2e8f0)}.calc-btn-fn:hover{background:#343760}.calc-btn-op{background:var(--primary, #6366f1);color:#fff}.calc-btn-op:hover{background:#4f52d4}.calc-btn-zero{grid-column:span 1}.conv-container{display:flex;flex-direction:column;gap:1.25rem}.conv-note{background:#eab3081f;border:1px solid rgba(234,179,8,.3);border-radius:.625rem;padding:.75rem 1rem;font-size:.85rem;color:#fbbf24}.conv-row{display:flex;align-items:flex-end;gap:.75rem}.conv-field{flex:1;display:flex;flex-direction:column;gap:.5rem;min-width:0}.conv-label{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted, #94a3b8)}.conv-select{width:100%;padding:.625rem 2.25rem .625rem .875rem;border-radius:.625rem;border:1px solid var(--border, #2d3148);background:var(--card, #1a1d2e);color:var(--foreground, #e2e8f0);font-size:.9rem;cursor:pointer;outline:none;transition:border-color .15s;-moz-appearance:none;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2394a3b8' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right .75rem center}.conv-select:focus{border-color:var(--primary, #6366f1)}.conv-input{width:100%;padding:.75rem .875rem;border-radius:.625rem;border:1px solid var(--border, #2d3148);background:#0d0f1a;color:var(--foreground, #e2e8f0);font-size:1.1rem;outline:none;transition:border-color .15s}.conv-input:focus{border-color:var(--primary, #6366f1)}.conv-input::-webkit-inner-spin-button,.conv-input::-webkit-outer-spin-button{-webkit-appearance:none}.conv-result-box{width:100%;padding:.75rem .875rem;border-radius:.625rem;border:1px solid var(--border, #2d3148);background:#6366f114;min-height:3rem;display:flex;align-items:center}.conv-result-value{font-size:1.1rem;font-weight:600;color:var(--primary, #6366f1);word-break:break-all}.conv-result-placeholder{font-size:1rem;color:var(--muted, #94a3b8)}.conv-swap{width:44px;height:44px;flex-shrink:0;border:1px solid var(--border, #2d3148);border-radius:50%;background:var(--card, #1a1d2e);color:var(--foreground, #e2e8f0);font-size:1.25rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .15s,border-color .15s;margin-bottom:.25rem}.conv-swap:hover{background:var(--primary, #6366f1);border-color:var(--primary, #6366f1);color:#fff}.conv-summary{background:var(--card, #1a1d2e);border:1px solid var(--border, #2d3148);border-radius:.75rem;padding:.875rem 1.125rem;font-size:.95rem;color:var(--foreground, #e2e8f0);line-height:1.5}.conv-summary strong{color:var(--primary, #6366f1)}.conv-all-title{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--muted, #94a3b8);padding-bottom:.25rem;border-bottom:1px solid var(--border, #2d3148)}.conv-all-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:.625rem}.conv-all-item{background:var(--card, #1a1d2e);border:1px solid var(--border, #2d3148);border-radius:.625rem;padding:.75rem 1rem;cursor:pointer;transition:border-color .15s,background .15s;display:flex;flex-direction:column;gap:.25rem}.conv-all-item:hover{border-color:var(--primary, #6366f1);background:#6366f114}.conv-all-label{font-size:.75rem;color:var(--muted, #94a3b8);font-weight:500}.conv-all-val{font-size:1rem;font-weight:600;color:var(--foreground, #e2e8f0);word-break:break-all}@media (max-width: 480px){.sc-main{padding:1rem .5rem}.calc-btn{height:56px;font-size:1.1rem}.calc-display{font-size:2rem}.conv-row{flex-direction:column;align-items:stretch}.conv-swap{align-self:center;transform:rotate(90deg);margin:0}.conv-all-grid{grid-template-columns:1fr 1fr}.sc-nav-btn{padding:.4rem .5rem}.sc-nav-label{font-size:.65rem}}body{overflow-wrap:anywhere}pre{max-width:100%;overflow-x:auto}