.calc-card{background:var(--bg-secondary);border:1px solid var(--border);border-radius:12px;max-width:640px;padding:24px}.calc-label{color:var(--text-secondary);flex-direction:column;gap:8px;margin-bottom:20px;font-size:.9rem;display:flex}.calc-label svg{color:var(--accent)}.calc-label input{background:var(--bg-tertiary);border:1px solid var(--border);color:var(--text-primary);border-radius:8px;padding:12px 14px;font-size:1rem}.calc-dates{grid-template-columns:1fr 1fr;gap:16px;display:grid}@media (max-width:500px){.calc-dates{grid-template-columns:1fr}}.calc-results{margin-top:8px}.calc-hero{color:var(--accent);margin-bottom:16px;font-size:2.5rem;font-weight:700}.calc-hero span{color:var(--text-muted);font-size:1rem;font-weight:400}.calc-chrono{color:var(--text-primary);margin-bottom:20px;font-size:1.1rem;line-height:1.5}.calc-grid{grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:16px;display:grid}@media (max-width:600px){.calc-grid{grid-template-columns:repeat(2,1fr)}}.calc-grid>div{background:var(--bg-tertiary);border:1px solid var(--border);text-align:center;border-radius:8px;padding:14px}.calc-grid strong{color:var(--text-primary);font-size:1.4rem;display:block}.calc-grid span{color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;font-size:.75rem}.calc-meta{color:var(--text-secondary);font-size:.88rem;line-height:1.6}.calc-error{color:var(--error);font-size:.9rem}