@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap";:root{--bg-app:#07080f;--bg-card:#0e1018;--bg-card2:#161828;--bg-input:#0a0c14;--bg-hover:#1e2235;--bg-active:#181c30;--accent:#818cf8;--accent-glow:#818cf838;--accent-dim:#818cf81f;--purple:#c084fc;--green:#4ade80;--yellow:#facc15;--red:#f87171;--orange:#fb923c;--cyan:#38bdf8;--text-1:#e8e6f8;--text-2:#9490b5;--text-3:#4e4a6a;--border:#1a1d2e;--border-2:#252840;--radius-s:6px;--radius-m:10px;--radius-l:16px;--radius-xl:20px;--shadow-s:0 1px 4px #0006;--shadow-m:0 4px 16px #00000080;--shadow-l:0 8px 32px #0009;--sidebar-w:256px;--header-h:58px;--transition:.18s ease}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%}body{background:var(--bg-app);color:var(--text-1);-webkit-font-smoothing:antialiased;font-family:Inter,system-ui,sans-serif;font-size:14px;line-height:1.6}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-2);border-radius:99px}::-webkit-scrollbar-thumb:hover{background:var(--text-3)}.app-shell{height:100%;display:flex;overflow:hidden}.sidebar{width:var(--sidebar-w);min-width:var(--sidebar-w);background:var(--bg-card);border-right:1px solid var(--border);z-index:100;transition:transform var(--transition);flex-direction:column;display:flex;overflow:hidden auto}.sidebar-logo{border-bottom:1px solid var(--border);align-items:center;gap:10px;padding:20px 18px 18px;display:flex}.logo-icon{background:linear-gradient(135deg, var(--accent) 0%, var(--purple) 100%);border-radius:var(--radius-m);color:#fff;width:36px;height:36px;box-shadow:0 0 16px var(--accent-glow);flex-shrink:0;justify-content:center;align-items:center;font-size:18px;font-weight:700;display:flex}.logo-text{line-height:1.2}.logo-title{color:var(--text-1);letter-spacing:.02em;font-size:13px;font-weight:700}.logo-sub{color:var(--text-3);font-size:11px}.sidebar-section{padding:8px 10px 4px}.sidebar-label{text-transform:uppercase;letter-spacing:.08em;color:var(--text-3);margin-bottom:4px;padding:0 8px;font-size:10px;font-weight:600}.nav-item{border-radius:var(--radius-m);cursor:pointer;transition:background var(--transition), color var(--transition);color:var(--text-2);align-items:center;gap:10px;padding:9px 10px;font-size:13px;font-weight:500;text-decoration:none;display:flex;position:relative;overflow:hidden}.nav-item:hover{background:var(--bg-hover);color:var(--text-1)}.nav-item.active{background:var(--accent-dim);color:var(--accent);font-weight:600}.nav-item.active:before{content:"";background:var(--accent);border-radius:0 3px 3px 0;width:3px;height:60%;position:absolute;top:50%;left:0;transform:translateY(-50%)}.nav-icon{border-radius:var(--radius-s);background:var(--bg-card2);width:28px;height:28px;transition:background var(--transition);flex-shrink:0;justify-content:center;align-items:center;font-size:14px;display:flex}.nav-item.active .nav-icon{background:var(--accent-dim)}.sidebar-footer{border-top:1px solid var(--border);color:var(--text-3);text-align:center;margin-top:auto;padding:12px;font-size:11px}.main-area{flex-direction:column;flex:1;min-width:0;display:flex;overflow:hidden}.header{height:var(--header-h);min-height:var(--header-h);background:var(--bg-card);border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:0 24px;display:flex}.header-menu-btn{cursor:pointer;color:var(--text-2);border-radius:var(--radius-s);background:0 0;border:none;padding:6px;font-size:20px;line-height:1;display:none}.header-title{color:var(--text-1);font-size:15px;font-weight:600}.header-badge{align-items:center;gap:6px;margin-left:auto;display:flex}.badge{background:var(--accent-dim);color:var(--accent);border:1px solid var(--accent-glow);border-radius:99px;align-items:center;gap:4px;padding:3px 8px;font-size:11px;font-weight:600;display:inline-flex}.content{flex:1;padding:24px;overflow-y:auto}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-l);padding:20px}.card-title{color:var(--text-2);text-transform:uppercase;letter-spacing:.07em;align-items:center;gap:8px;margin-bottom:16px;font-size:12px;font-weight:600;display:flex}.card-title-dot{background:var(--accent);border-radius:50%;width:6px;height:6px}.method-header{margin-bottom:24px}.method-title{color:var(--text-1);align-items:center;gap:12px;margin-bottom:6px;font-size:26px;font-weight:700;display:flex}.method-title-icon{background:linear-gradient(135deg, var(--accent) 0%, var(--purple) 100%);border-radius:var(--radius-m);width:44px;height:44px;box-shadow:0 0 20px var(--accent-glow);flex-shrink:0;justify-content:center;align-items:center;font-size:20px;display:flex}.method-desc{color:var(--text-2);max-width:600px;font-size:14px}.method-grid{grid-template-columns:1fr 1fr;gap:20px;display:grid}.method-grid.single{grid-template-columns:1fr}@media 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var(--accent-glow)}input::placeholder,textarea::placeholder{color:var(--text-3)}select{cursor:pointer}select option{background:var(--bg-card2)}.btn{border-radius:var(--radius-s);cursor:pointer;transition:all var(--transition);letter-spacing:.02em;border:none;justify-content:center;align-items:center;gap:8px;padding:9px 20px;font-family:inherit;font-size:13px;font-weight:600;display:inline-flex}.btn-primary{background:var(--accent);color:#fff;box-shadow:0 0 16px var(--accent-glow)}.btn-primary:hover{box-shadow:0 0 24px var(--accent-glow);background:#6ba3f8;transform:translateY(-1px)}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:var(--bg-card2);color:var(--text-2);border:1px solid var(--border-2)}.btn-secondary:hover{background:var(--bg-hover);color:var(--text-1)}.btn-danger{color:var(--red);background:#f871711f;border:1px solid #f8717133}.btn-danger:hover{background:#f8717133}.btn-sm{padding:5px 12px;font-size:12px}.btn-lg{padding:11px 28px;font-size:14px}.btn-row{flex-wrap:wrap;gap:10px;margin-top:16px;display:flex}.matrix-wrap{padding-bottom:4px;overflow-x:auto}.matrix-grid{background:var(--bg-input);border:1px solid var(--border-2);border-radius:var(--radius-m);gap:6px;padding:12px 14px;display:inline-grid;position:relative}.matrix-cell{background:var(--bg-card2);border:1px solid var(--border);border-radius:var(--radius-s);width:70px;color:var(--text-1);text-align:center;transition:border-color var(--transition), box-shadow var(--transition);-moz-appearance:textfield;outline:none;padding:6px 8px;font-family:JetBrains Mono,monospace;font-size:13px}.matrix-cell::-webkit-inner-spin-button{-webkit-appearance:none}.matrix-cell::-webkit-outer-spin-button{-webkit-appearance:none}.matrix-cell:focus{border-color:var(--accent);box-shadow:0 0 0 2px var(--accent-glow);z-index:1}.matrix-cell.augmented{border-left:2px solid #4f8ef780}.size-ctrl{align-items:center;gap:8px;margin-bottom:12px;display:flex}.size-btn{border-radius:var(--radius-s);background:var(--bg-card2);border:1px solid var(--border-2);width:26px;height:26px;color:var(--text-1);cursor:pointer;transition:background var(--transition);justify-content:center;align-items:center;font-size:16px;line-height:1;display:flex}.size-btn:hover{background:var(--bg-hover)}.size-display{color:var(--text-2);text-align:center;min-width:40px;font-family:JetBrains Mono,monospace;font-size:13px}.points-table-wrap{overflow-x:auto}.points-table{border-collapse:collapse;width:100%}.points-table th{background:var(--bg-card2);color:var(--text-2);text-transform:uppercase;letter-spacing:.06em;text-align:left;border-bottom:1px solid var(--border);padding:8px 12px;font-size:11px;font-weight:600}.points-table td{border-bottom:1px solid var(--border);padding:4px 6px}.points-table tr:last-child td{border-bottom:none}.points-table 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16px}.result-box.success{background:#34d3990d;border-color:#34d3994d}.result-box.warning{background:#fbbf240d;border-color:#fbbf244d}.result-box.error{background:#f871710d;border-color:#f871714d}.result-box-label{color:var(--text-3);text-transform:uppercase;letter-spacing:.06em;margin-bottom:4px;font-size:11px;font-weight:600}.result-box-value{color:var(--text-1);font-family:JetBrains Mono,monospace;font-size:20px;font-weight:700}.result-box.success .result-box-value{color:var(--green)}.result-box.warning .result-box-value{color:var(--yellow)}.result-box.error .result-box-value{color:var(--red)}.step-card{background:var(--bg-card2);border:1px solid var(--border);border-radius:var(--radius-m);margin-bottom:10px;overflow:hidden}.step-header{background:var(--bg-card);border-bottom:1px solid var(--border);color:var(--text-2);align-items:center;gap:10px;padding:10px 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#fbbf2440}.alert-info{color:var(--accent);background:#4f8ef714;border:1px solid #4f8ef740}.alert-success{color:var(--green);background:#34d39914;border:1px solid #34d39940}.alert-icon{flex-shrink:0;margin-top:1px;font-size:16px}.dd-table{border-collapse:collapse;width:100%;font-size:12px}.dd-table th{background:var(--bg-card2);color:var(--text-2);text-transform:uppercase;letter-spacing:.06em;border-bottom:1px solid var(--border-2);white-space:nowrap;padding:8px 12px;font-size:11px}.dd-table td{text-align:right;color:var(--text-1);border-bottom:1px solid var(--border);padding:7px 12px;font-family:JetBrains Mono,monospace}.dd-table tr:last-child td{border-bottom:none}.dd-table tbody tr:hover td{background:var(--bg-hover)}.dd-table .diag{color:var(--accent);font-weight:600}.dd-table td:first-child{color:var(--text-3);text-align:left}.chart-container{background:var(--bg-card2);border:1px solid var(--border);border-radius:var(--radius-l);padding:16px;overflow:hidden}.chart-title{color:var(--text-2);text-transform:uppercase;letter-spacing:.07em;margin-bottom:12px;font-size:11px;font-weight:600}.solution-grid{flex-wrap:wrap;gap:10px;margin-top:14px;display:flex}.solution-chip{background:var(--accent-dim);border:1px solid var(--accent-glow);border-radius:var(--radius-m);align-items:center;gap:6px;padding:8px 14px;font-family:JetBrains Mono,monospace;display:flex}.solution-chip-label{color:var(--text-2);font-size:12px}.solution-chip-value{color:var(--accent);font-size:15px;font-weight:600}.home-hero{text-align:center;padding:40px 20px 32px}.home-hero h1{color:var(--text-1);background:linear-gradient(135deg, var(--accent) 0%, var(--purple) 100%);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:10px;font-size:36px;font-weight:800}.home-hero p{color:var(--text-2);max-width:480px;margin:0 auto;font-size:15px}.methods-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin-top:28px;display:grid}.method-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-l);color:inherit;transition:border-color var(--transition), box-shadow var(--transition), transform var(--transition);padding:20px;text-decoration:none;display:block}.method-card:hover{border-color:var(--accent);box-shadow:0 0 24px var(--accent-glow);transform:translateY(-2px)}.method-card-icon{border-radius:var(--radius-m);justify-content:center;align-items:center;width:44px;height:44px;margin-bottom:12px;font-size:20px;display:flex}.method-card-title{color:var(--text-1);margin-bottom:6px;font-size:15px;font-weight:700}.method-card-desc{color:var(--text-2);font-size:12px;line-height:1.5}.method-card-tag{text-transform:uppercase;letter-spacing:.06em;border-radius:99px;margin-top:10px;padding:2px 8px;font-size:10px;font-weight:600;display:inline-block}.tabs{background:var(--bg-card2);border-radius:var(--radius-m);gap:2px;width:fit-content;margin-bottom:16px;padding:3px;display:flex}.tab-btn{border-radius:calc(var(--radius-m) - 2px);cursor:pointer;color:var(--text-2);transition:all var(--transition);background:0 0;border:none;padding:6px 14px;font-family:inherit;font-size:12px;font-weight:600}.tab-btn.active{background:var(--bg-card);color:var(--accent);box-shadow:var(--shadow-s)}.tab-btn:hover:not(.active){color:var(--text-1)}.sidebar-overlay{z-index:199;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#0009;display:none;position:fixed;inset:0}@media (width<=768px){.sidebar{z-index:200;height:100%;box-shadow:var(--shadow-l);position:fixed;top:0;left:0;transform:translate(-100%)}.sidebar.open{transform:translate(0)}.sidebar-overlay.visible{display:block}.header-menu-btn{display:flex}.content{padding:16px}.form-row{grid-template-columns:1fr}.form-row-3,.results-grid{grid-template-columns:1fr 1fr}}@media (width<=480px){.home-hero h1{font-size:26px}.method-title{font-size:20px}.results-grid{grid-template-columns:1fr}}.divider{background:var(--border);height:1px;margin:20px 0}.mono{font-family:JetBrains Mono,monospace}.mt-16{margin-top:16px}.mt-12{margin-top:12px}.gap-12{gap:12px}