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rgba(16,185,129,.3);border-radius:.75rem;padding:2rem;margin-bottom:3rem}.calculator-inputs{display:flex;gap:1rem;align-items:flex-end;flex-wrap:wrap;margin-bottom:1.5rem}.calc-field{display:flex;flex-direction:column;gap:.375rem}.calc-field label{font-size:.8rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;font-weight:600}.calc-field select,.calc-field input[type=number]{background:var(--card-bg);border:1px solid var(--border-color);color:var(--text-primary);padding:.625rem 1rem;border-radius:.5rem;font-family:Inter,sans-serif;font-size:1rem;min-width:120px}.calc-field select:focus,.calc-field input[type=number]:focus{outline:none;border-color:var(--green)}.calc-btn{background:var(--green);color:#fff;border:none;padding:.625rem 1.5rem;border-radius:.5rem;font-weight:600;cursor:pointer;font-size:1rem;transition:background .2s}.calc-btn:hover{background:#059669}.calc-result{display:none}.calc-result.visible{display:block}.calc-big-number{font-size:3rem;font-weight:800;font-family:JetBrains Mono,monospace;color:var(--green);line-height:1.1;margin-bottom:.5rem}.calc-subtitle{color:var(--text-muted);font-size:1.05rem;margin-bottom:1.5rem}.calc-stats-row{display:flex;gap:2rem;flex-wrap:wrap}.calc-stat-label{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em}.calc-stat-value{font-size:1.5rem;font-weight:700;font-family:JetBrains Mono,monospace;color:var(--text-primary)}.chart-toggle{display:flex;gap:.5rem;margin-bottom:1rem}.chart-toggle button{background:var(--card-bg);border:1px solid var(--border-color);color:var(--text-muted);padding:.5rem 1.25rem;border-radius:.375rem;cursor:pointer;font-weight:600;font-size:.875rem;transition:all .2s}.chart-toggle button.active{background:var(--green);color:#fff;border-color:var(--green)}.chart-toggle button:hover:not(.active){color:var(--text-primary);border-color:var(--text-muted)}.decade-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:1rem}.decade-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:.75rem;padding:1.25rem;position:relative;overflow:hidden}.decade-card.positive{border-left:3px solid var(--green)}.decade-card.negative{border-left:3px solid var(--red)}.decade-name{font-size:1.25rem;font-weight:700;color:#fff;margin-bottom:.75rem}.decade-stat{display:flex;justify-content:space-between;padding:.25rem 0;font-size:.875rem}.decade-stat-label{color:var(--text-muted)}.decade-stat-value{font-family:JetBrains Mono,monospace;font-weight:600}.insights-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1rem}.insight-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:.75rem;padding:1.5rem;display:flex;gap:1rem;align-items:flex-start}.insight-icon{font-size:1.75rem;flex-shrink:0;line-height:1}.insight-text{font-size:.95rem;color:var(--text-muted);line-height:1.5}.insight-highlight{color:var(--green);font-weight:700;font-family:JetBrains Mono,monospace}@media(max-width:768px){.nav-links{display:none}h1{font-size:2rem}.stats-grid{grid-template-columns:1fr}.chart-container{height:350px}.calc-big-number{font-size:2rem}.calculator-inputs{flex-direction:column;align-items:stretch}.calc-stats-row{flex-direction:column;gap:1rem}.decade-grid,.insights-grid{grid-template-columns:1fr}}