:root{--bg: #f6f7f9;--bg-elev: #ffffff;--panel: #ffffff;--panel-soft: #fafbfc;--border: #e4e7eb;--border-strong: #c7ccd3;--border-focus: #2f6feb;--text: #1f2328;--text-strong: #0f1419;--muted: #5a6470;--muted-2: #8a929d;--accent: #2f6feb;--accent-hover: #1d5bd6;--accent-soft: #e7f0ff;--accent-fg: #ffffff;--success: #1f883d;--success-soft: #dcf3e3;--warning: #b88217;--warning-soft: #fff4d6;--negative: #cf222e;--negative-soft: #ffe0e1;--header: #f1f3f5;--subtotal: #fff8e1;--grandtotal: #ffe8cc;--subtotal-fg: #1f2328;--grandtotal-fg: #1f2328;--row-alt: #fafbfc;--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;--fs-xs: 11px;--fs-sm: 12px;--fs-md: 13px;--fs-lg: 15px;--fs-xl: 18px;--fs-2xl: 22px;--fw-regular: 400;--fw-medium: 500;--fw-semibold: 600;--fw-bold: 700;--sp-1: 4px;--sp-2: 8px;--sp-3: 12px;--sp-4: 16px;--sp-5: 20px;--sp-6: 24px;--sp-8: 32px;--r-sm: 4px;--r-md: 6px;--r-lg: 8px;--r-xl: 12px;--r-pill: 999px;--shadow-1: 0 1px 2px rgba(15, 20, 25, .04), 0 1px 1px rgba(15, 20, 25, .03);--shadow-2: 0 2px 6px rgba(15, 20, 25, .06), 0 1px 2px rgba(15, 20, 25, .04);--shadow-3: 0 6px 16px rgba(15, 20, 25, .08), 0 2px 4px rgba(15, 20, 25, .05);--shadow-pop: 0 12px 32px rgba(15, 20, 25, .14);--motion-fast: .12s;--motion-med: .2s;--ease: cubic-bezier(.2, .8, .2, 1);--topbar-h: 48px}*{box-sizing:border-box}html,body{margin:0;padding:0;height:100%;font-family:var(--font-sans);font-size:var(--fs-md);color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}button{font:inherit;padding:5px 12px;border:1px solid var(--border-strong);background:var(--panel);color:var(--text);border-radius:var(--r-md);cursor:pointer;font-weight:var(--fw-medium);transition:background var(--motion-fast) var(--ease),border-color var(--motion-fast) var(--ease),box-shadow var(--motion-fast) var(--ease),transform var(--motion-fast) var(--ease)}button:hover:not(:disabled){background:var(--accent-soft);border-color:var(--accent);color:var(--accent-hover)}button:active:not(:disabled){transform:translateY(1px)}button:focus-visible{outline:2px solid var(--border-focus);outline-offset:1px}button:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--accent);color:var(--accent-fg);border-color:var(--accent)}.btn-primary:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover);color:var(--accent-fg)}.btn-ghost{background:transparent;border-color:transparent;color:var(--accent)}.btn-ghost:hover:not(:disabled){background:var(--accent-soft);border-color:transparent;color:var(--accent-hover)}.btn-danger{background:var(--panel);color:var(--negative);border-color:var(--border-strong)}.btn-danger:hover:not(:disabled){background:var(--negative-soft);border-color:var(--negative);color:var(--negative)}input,select,textarea{font:inherit;padding:5px 8px;border:1px solid var(--border-strong);border-radius:var(--r-md);background:var(--panel);color:var(--text);transition:border-color var(--motion-fast) var(--ease),box-shadow var(--motion-fast) var(--ease)}input:hover,select:hover,textarea:hover{border-color:var(--accent)}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--border-focus);box-shadow:0 0 0 3px var(--accent-soft)}.muted{color:var(--muted)}.muted-2{color:var(--muted-2)}.row{display:flex;gap:var(--sp-2);align-items:center}.col{display:flex;flex-direction:column;gap:var(--sp-2)}.spacer{flex:1}.nav-link{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;color:var(--muted);text-decoration:none;font-size:var(--fs-sm);font-weight:var(--fw-medium);border-radius:var(--r-md);transition:background var(--motion-fast) var(--ease),color var(--motion-fast) var(--ease)}.nav-link:hover{background:var(--panel-soft);color:var(--text-strong)}.nav-link.is-active{background:var(--accent-soft);color:var(--accent-hover)}.nav-link:focus-visible{outline:2px solid var(--border-focus);outline-offset:1px}.nav-link .nav-ico{width:14px;height:14px;flex-shrink:0;opacity:.85}.nav-link.is-active .nav-ico{opacity:1}*{scrollbar-width:thin;scrollbar-color:var(--border-strong) transparent}*::-webkit-scrollbar{width:10px;height:10px}*::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:var(--r-pill);border:2px solid transparent;background-clip:padding-box}*::-webkit-scrollbar-thumb:hover{background-color:var(--muted-2);background-clip:padding-box}*::-webkit-scrollbar-track{background:transparent}table.pivot td{background-color:var(--cell-bg, #fff)!important}table.pivot th{background-color:var(--header)!important}table.pivot tr.subtotal td{background-color:var(--cell-bg, var(--subtotal))!important;color:var(--subtotal-fg)!important;font-weight:600}table.pivot tr.grandtotal td{background-color:var(--cell-bg, var(--grandtotal))!important;color:var(--grandtotal-fg)!important;font-weight:700}table.pivot th.corner,table.pivot th.dim-head,table.pivot th.val-head{background-color:#e9ecef!important}table.pivot th.col-head{background-color:var(--header)!important}table.pivot th.col-head.subtotal,table.pivot th.val-head.subtotal{background-color:var(--subtotal)!important;color:var(--subtotal-fg)!important}table.pivot th.col-head.grandtotal,table.pivot th.val-head.grandtotal{background-color:var(--grandtotal)!important;color:var(--grandtotal-fg)!important}.spinner{display:inline-block;width:1.2em;height:1.2em;border:2px solid color-mix(in srgb,currentColor 25%,transparent);border-top-color:currentColor;border-radius:50%;animation:solver-spin .7s linear infinite;vertical-align:-.2em}.spinner.lg{width:2.4em;height:2.4em;border-width:3px}@keyframes solver-spin{to{transform:rotate(360deg)}}.progress-bar{position:relative;height:2px;width:100%;background:var(--accent-soft);overflow:hidden;border-radius:var(--r-pill)}.progress-bar:after{content:"";position:absolute;inset:0;width:40%;background:var(--accent);border-radius:inherit;animation:solver-progress 1.4s cubic-bezier(.4,0,.2,1) infinite}@keyframes solver-progress{0%{transform:translate(-100%)}60%{transform:translate(180%)}to{transform:translate(180%)}}.loading-text{background:linear-gradient(90deg,var(--muted-2) 0%,var(--text) 50%,var(--muted-2) 100%);background-size:200% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;animation:solver-shimmer 1.6s ease-in-out infinite}@keyframes solver-shimmer{0%{background-position:100% 50%}to{background-position:-100% 50%}}.skeleton-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--r-lg);box-shadow:var(--shadow-1);padding:var(--sp-4);display:flex;flex-direction:column;gap:8px}.skeleton{background:linear-gradient(90deg,var(--bg) 0%,var(--panel-soft) 50%,var(--bg) 100%);background-size:200% 100%;border-radius:var(--r-md);animation:solver-skeleton 1.4s ease-in-out infinite}.skeleton-text{height:.9em;margin:.4em 0;border-radius:var(--r-sm)}@keyframes solver-skeleton{0%{background-position:100% 50%}to{background-position:-100% 50%}}@media(prefers-reduced-motion:reduce){.spinner,.progress-bar:after,.loading-text,.skeleton{animation:none}.loading-text{color:var(--muted)}}.widget-flash{animation:solverinsight-widget-flash 1.2s ease-out}@keyframes solverinsight-widget-flash{0%{box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 55%,transparent)}to{box-shadow:0 0 0 0 transparent}}