.tool-shell{--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-primary-ring: #3b82f6;--color-primary-tint: #eff6ff;--color-gain: #d97706;--color-surface: #ffffff;--color-surface-muted: #f9fafb;--color-surface-placeholder: #f3f4f6;--color-border: #e5e7eb;--color-border-input: #d1d5db;--color-text-heading: #111827;--color-text-body: #374151;--color-text-secondary: #4b5563;--color-text-muted: #6b7280;--gradient-hero: linear-gradient(to right, #eef2ff, #ffffff, #fdf2f8);--radius-input: .5rem;--radius-card: 1rem;--shadow-card: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-raised: 0 10px 15px -3px rgb(0 0 0 / .1);color:var(--color-text-body);background:#fcfcfd;line-height:1.5;-webkit-font-smoothing:antialiased}.tool-shell *{box-sizing:border-box}.tool-shell__container{max-width:72rem;margin-inline:auto;padding-inline:1rem;padding-bottom:1rem}@media (min-width: 640px){.tool-shell__container{padding-inline:1.5rem}}@media (min-width: 1024px){.tool-shell__container{padding-inline:2rem}}.tool-shell .card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-card);box-shadow:var(--shadow-card);padding:1.5rem}.tool-shell .card--raised{box-shadow:var(--shadow-raised)}.tool-shell .btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;background:var(--color-primary);color:#fff;font-weight:600;padding:.625rem 1.5rem;border-radius:var(--radius-input);border:0;cursor:pointer;text-decoration:none;transition:.15s;font-size:1rem}.tool-shell .btn:hover{background:var(--color-primary-hover)}.tool-shell .btn:focus-visible{outline:2px solid var(--color-primary-ring);outline-offset:2px}.tool-shell .btn:disabled{opacity:.55;cursor:not-allowed}.tool-shell .btn--full{width:100%}.tool-shell .btn--sm{padding:.4rem .85rem;font-size:.85rem}.tool-shell .btn--ghost{background:var(--color-surface);color:var(--color-text-body);border:1px solid var(--color-border-input)}.tool-shell .btn--ghost:hover{background:var(--color-surface-muted)}.tool-shell label.field{display:flex;align-items:center;justify-content:space-between;gap:.5rem;font-size:.875rem;font-weight:500;color:var(--color-text-body);margin-bottom:.45rem}.tool-shell .field-val{font-weight:700;color:var(--color-primary)}.tool-shell .field-hint{margin:.45rem 0 0;font-size:.78rem;color:var(--color-text-muted)}.tool-shell .field-group{margin-bottom:1.25rem}.tool-shell .input,.tool-shell select.input{width:100%;padding:.55rem .75rem;border:1px solid var(--color-border-input);border-radius:var(--radius-input);background:var(--color-surface);color:var(--color-text-heading);font-size:1rem;font-family:inherit}.tool-shell .input:focus,.tool-shell select.input:focus{outline:2px solid var(--color-primary-ring);outline-offset:1px;border-color:var(--color-primary-ring)}.tool-shell .slider{width:100%;accent-color:var(--color-primary);height:1.5rem;cursor:pointer}.tool-shell .slider:focus-visible{outline:2px solid var(--color-primary-ring);outline-offset:3px;border-radius:4px}.tool-shell h2.section{font-size:1.5rem;font-weight:700;color:var(--color-text-heading);letter-spacing:-.01em;margin:0}.tool-shell h3.panel{font-size:1.125rem;font-weight:600;color:var(--color-text-heading);margin:0}.tool-shell .muted{color:var(--color-text-muted)}.tool-shell .tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem;background:var(--color-surface-muted);border-radius:var(--radius-input);padding:1rem;border:1px solid var(--color-border)}.tool-shell .tile__label{font-size:.85rem;color:var(--color-text-muted)}.tool-shell .tile__value{font-size:1.35rem;font-weight:700;color:var(--color-text-heading)}.tool-shell .tile__value--primary{color:var(--color-primary)}.tool-shell .tile__value--gain{color:var(--color-gain)}@media (max-width: 560px){.tool-shell .tiles{grid-template-columns:1fr;gap:.75rem}}.tool-shell .hero{background:var(--gradient-hero);border-radius:var(--radius-card);box-shadow:var(--shadow-card);text-align:center;padding:1.75rem 1.5rem 1.5rem;margin-top:1.5rem}.tool-shell .hero h1{margin:0 0 .5rem;font-size:clamp(1.6rem,3.5vw,2rem);font-weight:800;letter-spacing:-.02em;color:var(--color-text-heading)}.tool-shell .hero p{margin:0 auto;font-size:1.05rem;color:var(--color-text-body);max-width:46rem}.tool-shell .trust{display:inline-flex;align-items:center;gap:.5rem;margin-top:.85rem;font-size:.9rem;font-weight:600;color:#047857;background:#ecfdf5;border:1px solid #a7f3d0;padding:.45rem .9rem;border-radius:999px}.tool-shell .layout{display:grid;grid-template-columns:1fr;gap:1.5rem;margin-top:2rem}@media (min-width: 920px){.tool-shell .layout{grid-template-columns:minmax(0,1.75fr) minmax(0,1fr);align-items:start}.tool-shell .side-card{position:sticky;top:1.5rem}}.tool-shell .side-card h3.panel{margin-bottom:1.1rem}.tool-shell .dropzone{border:2px dashed var(--color-border-input);border-radius:var(--radius-card);background:var(--color-surface-muted);padding:3rem 1.5rem;text-align:center;cursor:pointer;transition:.18s;user-select:none}.tool-shell .dropzone:hover,.tool-shell .dropzone.is-drag{border-color:var(--color-primary-ring);background:var(--color-primary-tint)}.tool-shell .dropzone.is-drag{border-style:solid}.tool-shell .dropzone:focus-visible{outline:2px solid var(--color-primary-ring);outline-offset:2px}.tool-shell .dropzone__icon{width:56px;height:56px;margin:0 auto .9rem;color:var(--color-primary)}.tool-shell .dropzone__icon svg{width:100%;height:100%;display:block}.tool-shell .dropzone__title{font-weight:700;font-size:1.15rem;color:var(--color-text-heading)}.tool-shell .dropzone__sub{font-size:.92rem;color:var(--color-text-muted);margin-top:.35rem}.tool-shell .dropzone__formats{display:inline-flex;flex-wrap:wrap;gap:.35rem;justify-content:center;margin-top:1rem}.tool-shell .fmt-chip{font-size:.7rem;font-weight:700;letter-spacing:.03em;padding:.18rem .5rem;border-radius:999px;background:var(--color-surface);border:1px solid var(--color-border);color:var(--color-text-muted)}.tool-shell .results-row:not(:empty){margin-top:1.5rem}.tool-shell .how{margin-top:3.25rem}.tool-shell .how h2.section{text-align:center}.tool-shell .how__lead{text-align:center;color:var(--color-text-secondary);margin:.4rem 0 1.75rem}.tool-shell .steps{display:grid;grid-template-columns:1fr;gap:1.1rem}@media (min-width: 720px){.tool-shell .steps{grid-template-columns:repeat(3,1fr)}}.tool-shell .step{text-align:center;padding:1.75rem 1.25rem}.tool-shell .step__n{width:2.5rem;height:2.5rem;margin:0 auto .9rem;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:1.1rem;color:var(--color-primary);background:var(--color-primary-tint);border:1px solid #bfdbfe}.tool-shell .step h3{font-size:1.05rem;font-weight:700;color:var(--color-text-heading);margin:0 0 .4rem}.tool-shell .step p{margin:0;font-size:.9rem;color:var(--color-text-secondary)}.tool-shell .privacy-line{margin-top:1.75rem;display:flex;align-items:center;gap:1rem;background:#ecfdf5;border:1px solid #a7f3d0}.tool-shell .privacy-line__icon{font-size:1.5rem;flex:0 0 auto}.tool-shell .privacy-line strong{color:#065f46}.tool-shell .privacy-line p{margin:0;color:#047857;font-size:.95rem}.tool-shell .foot{margin:2.5rem 0 1rem;padding-top:1.25rem;border-top:1px solid var(--color-border);text-align:center}.tool-shell .foot p{margin:0;font-size:.85rem}