:root{--bg-page-alt:var(--calc-bg-page-alt);--bg-card-solid:var(--calc-bg-card-elevated);--gold-glow:var(--calc-gold-dim);--emerald:var(--calc-emerald);--emerald-glow:var(--calc-emerald-dim);--text-primary:var(--calc-text-primary);--text-secondary:var(--calc-text-muted);--text-tertiary:var(--calc-text-dim);--border-subtle:var(--calc-border-subtle);--border-card:var(--calc-border-default);--shadow-card:var(--calc-shadow-card);--font:"Inter", -apple-system, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:linear-gradient(180deg, var(--calc-bg-page) 0%, var(--bg-page-alt) 100%);min-height:100vh;color:var(--text-primary);-webkit-font-smoothing:antialiased;line-height:1.5}.calc-breadcrumb{max-width:1200px;color:var(--text-tertiary);align-items:center;gap:6px;margin:0 auto;padding:6px 20px;font-size:.75rem;display:flex}.calc-breadcrumb a{color:var(--text-tertiary);text-decoration:none}.calc-breadcrumb a:hover{color:var(--calc-gold)}.calc-breadcrumb .sep{color:var(--text-secondary)}.main-container{max-width:1200px;margin:0 auto;padding:12px 20px}.page-title{text-align:center;letter-spacing:-.5px;margin-bottom:2px;font-size:1.5rem;font-weight:800}.section-desc{color:var(--text-secondary);text-align:center;margin-bottom:10px;font-size:.8rem}.tab-nav{border:1px solid var(--border-subtle);background:#ffffff08;border-radius:12px;gap:4px;margin-bottom:16px;padding:4px;display:flex}.tab-btn{color:var(--text-tertiary);cursor:pointer;font-size:.82rem;font-weight:600;font-family:var(--font);background:0 0;border:none;border-radius:8px;flex:1;padding:9px 12px;transition:color .2s,background .25s,box-shadow .25s}.tab-btn:hover{color:var(--text-primary);background:#ffffff0a}.tab-btn.active{color:var(--calc-gold);background:#f59e0b1f;box-shadow:0 0 0 1px #f59e0b4d}.tab-pane{display:none}.tab-pane.active{animation:.25s cubic-bezier(.4,0,.2,1) both pane-enter;display:block}@keyframes pane-enter{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.dashboard-grid{grid-template-columns:340px 1fr;align-items:start;gap:16px;display:grid}.card{background:var(--calc-bg-card);backdrop-filter:blur(20px);border:1px solid var(--border-card);box-shadow:var(--shadow-card);border-radius:12px;padding:14px}.input-card{border-left:3px solid var(--calc-gold)}.result-card{border-left:3px solid var(--emerald);min-width:0}.card-header-gold,.card-header-emerald{text-transform:uppercase;letter-spacing:1.5px;border-bottom:1px solid var(--border-subtle);margin-bottom:10px;padding-bottom:6px;font-size:.65rem;font-weight:700}.card-header-gold{color:var(--calc-gold)}.card-header-emerald{color:var(--emerald);margin-bottom:6px}.input-group{margin-bottom:10px}.input-group label{color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:4px;font-size:.67rem;font-weight:600;display:block}.input-wrapper{background:var(--bg-card-solid);border:1px solid var(--border-subtle);border-radius:10px;align-items:center;transition:border-color .2s,box-shadow .25s;display:flex;position:relative}.input-wrapper:focus-within{border-color:var(--calc-gold);box-shadow:0 0 0 3px var(--gold-glow)}.input-wrapper input,.glass-input{width:100%;color:var(--text-primary);font-size:1rem;font-weight:500;font-family:var(--font);font-variant-numeric:tabular-nums;background:0 0;border:none;outline:none;padding:9px 14px}.input-wrapper.prefix:before{content:attr(data-prefix);color:var(--text-tertiary);pointer-events:none;font-size:1rem;position:absolute;top:50%;left:12px;transform:translateY(-50%)}.input-wrapper.prefix input{padding-left:28px}.input-wrapper.suffix:after{content:attr(data-suffix);color:var(--text-tertiary);pointer-events:none;font-size:.9rem;position:absolute;top:50%;right:12px;transform:translateY(-50%)}.input-wrapper.suffix input{padding-right:36px}.input-hint{color:var(--text-tertiary);margin-top:3px;font-size:.65rem;font-style:italic}.solve-pills{gap:4px;margin-bottom:12px;display:flex}.solve-pill{border:1px solid var(--border-subtle);color:var(--text-tertiary);cursor:pointer;font-size:.7rem;font-weight:600;font-family:var(--font);background:0 0;border-radius:8px;flex:1;padding:7px 6px;transition:color .2s,background .2s,border-color .2s}.solve-pill:hover{color:var(--text-primary)}.solve-pill.active{color:var(--calc-gold);background:#f59e0b1f;border-color:#f59e0b4d}.hero-result{text-align:center;padding:12px 0 6px}.hero-label{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:1.5px;margin-bottom:4px;font-size:.65rem}.hero-value{font-variant-numeric:tabular-nums;letter-spacing:-1px;color:var(--emerald);margin-bottom:4px;font-size:2.8rem;font-weight:800;transition:color .3s}.hero-sub{color:var(--text-secondary);margin-bottom:8px;font-size:.78rem;line-height:1.4}.result-interpretation{color:var(--text-secondary);min-height:1.4em;padding:8px 0;font-size:.8rem;line-height:1.5}.formula-strip{border:1px solid var(--border-subtle);background:#ffffff05;border-radius:8px;flex-wrap:wrap;align-items:center;gap:6px;margin:8px 0;padding:8px 10px;font-size:.7rem;display:flex}.formula-chip{white-space:nowrap;font-variant-numeric:tabular-nums;background:#ffffff0d;border:1px solid #ffffff14;border-radius:20px;padding:3px 10px;font-weight:600}.formula-chip.gold{color:var(--calc-gold);background:#f59e0b14;border-color:#f59e0b33}.formula-chip.emerald{color:var(--emerald);background:#34d39914;border-color:#34d39933}.formula-op{color:var(--text-secondary);font-weight:700}.alert-stack{flex-direction:column;gap:6px;margin:10px 0 0;display:flex}.alert-item{border:1px solid #0000;border-radius:8px;align-items:flex-start;gap:8px;padding:8px 12px;font-size:.74rem;line-height:1.4;display:flex}.alert-danger{color:var(--calc-rose);background:#ef444414;border-color:#ef444433}@media (width<=1024px){.dashboard-grid{grid-template-columns:1fr}}@media (width<=768px){.main-container{padding:10px 14px}.page-title{font-size:1.25rem}.tab-btn{padding:7px 8px;font-size:.72rem}}@media (width<=480px){.tab-nav,.solve-pills{flex-wrap:wrap}.hero-value{font-size:2.2rem}}[data-theme=light]{--bg-page-alt:#f6f7fb;--bg-card-solid:#fff;--calc-gold:#b45309;--gold-glow:#b453091f;--emerald:#047857;--emerald-glow:#0478571f;--text-primary:#0f172a;--text-secondary:#334155;--text-tertiary:#64748b;--border-subtle:#0000001a;--border-card:#0000001f;--shadow-card:0 2px 12px #00000017}[data-theme=light] body{background:linear-gradient(#f6f7fb 0%,#edf2f7 100%)}[data-theme=light] .tab-nav{background:#00000005;border-color:#0000001a}[data-theme=light] .tab-btn{color:#64748b}[data-theme=light] .tab-btn:hover{color:#0f172a;background:#00000008}[data-theme=light] .tab-btn.active{color:#b45309;background:#b453091a;box-shadow:0 0 0 1px #b453094d}[data-theme=light] .card{background:#fff;border-color:#0000001a;box-shadow:0 2px 12px #00000012}[data-theme=light] .input-card{border-left-color:#b45309}[data-theme=light] .result-card{border-left-color:#047857}[data-theme=light] .card-header-gold{color:#b45309}[data-theme=light] .card-header-emerald{color:#047857}[data-theme=light] .input-wrapper{background:#f0f4f9;border-color:#0000001f}[data-theme=light] .input-wrapper:focus-within{border-color:#b45309;box-shadow:0 0 0 3px #b453091f}[data-theme=light] .input-wrapper input,[data-theme=light] .glass-input{color:#0f172a}[data-theme=light] .solve-pill{color:#64748b;border-color:#0000001f}[data-theme=light] .solve-pill:hover{color:#0f172a}[data-theme=light] .solve-pill.active{color:#b45309;background:#b453091a;border-color:#b453094d}[data-theme=light] .hero-value{color:#047857}[data-theme=light] .result-interpretation{color:#334155}[data-theme=light] .formula-strip{background:#f0f4f9;border-color:#0000001a}[data-theme=light] .formula-chip{color:#334155;background:#edf2f9;border-color:#0000001a}[data-theme=light] .formula-chip.gold{color:#b45309;background:#b4530914;border-color:#b4530933}[data-theme=light] .formula-chip.emerald{color:#047857;background:#04785714;border-color:#04785733}[data-theme=light] .formula-op{color:#64748b}[data-theme=light] .alert-danger{color:#7f1d1d;background:#fff1f2;border-color:#ef44444d}