.cidr-calculator{--cc-panel:#fff;--cc-surface:#f3f7f7;--cc-border:#d3e1df;--cc-text:#18312e;--cc-muted:#506562;--cc-accent:#076b60;margin:clamp(1.5rem,3vw,2.5rem)0 2.5rem;padding:clamp(1rem,3vw,2rem);border:1px solid var(--cc-border);border-radius:1.25rem;background:var(--cc-panel);color:var(--cc-text);line-height:1.65;font-size:1rem}.dark .cidr-calculator{--cc-panel:#202b2a;--cc-surface:#172320;--cc-border:#415a54;--cc-text:#edf8f5;--cc-muted:#b6cbc4;--cc-accent:#82dfc6}.cidr-calculator [hidden]{display:none!important}.cidr-calculator .cidr-eyebrow{color:var(--cc-accent);font-size:.75rem;font-weight:700;letter-spacing:.14em}.cidr-calculator h2{margin:.25rem 0 .75rem;font-size:clamp(1.4rem,4vw,1.9rem);color:var(--cc-text)}.cidr-calculator header p{margin:0 0 1.5rem;color:var(--cc-muted)}.cidr-inputs{display:grid;grid-template-columns:minmax(0,2fr)minmax(0,1.2fr)auto;align-items:end;gap:.8rem}.cidr-inputs>div{min-width:0}.cidr-calculator label{display:block;margin-bottom:.4rem;font-weight:600;font-size:.85rem}.cidr-calculator input,.cidr-calculator select{width:100%;min-height:48px;border:1px solid var(--cc-border);border-radius:.6rem;background:var(--cc-surface);color:var(--cc-text);padding:.6rem .7rem;font:inherit;font-size:.9rem}.cidr-calculator button{min-height:44px;padding:.55rem .9rem;border:1px solid var(--cc-border);border-radius:.6rem;color:var(--cc-text);background:var(--cc-panel);font:inherit;font-size:.85rem;font-weight:600;cursor:pointer}.cidr-calculator button:hover{border-color:var(--cc-accent)}.cidr-calculator button:disabled{opacity:.5;cursor:default}.cidr-calculator .cidr-primary{min-height:48px;background:var(--cc-accent);color:#fff;border-color:var(--cc-accent)}.dark .cidr-calculator .cidr-primary{color:#132c24}.cidr-calculator :is(input,select,button):focus-visible{outline:3px solid var(--cc-accent);outline-offset:3px}.cidr-calculator input[aria-invalid=true]{border:2px solid #c24136}.cidr-calculator .cidr-help{font-size:.82rem;color:var(--cc-muted);margin:.7rem 0}.cidr-examples{display:flex;align-items:center;flex-wrap:wrap;gap:.5rem;margin-top:1rem}.cidr-examples>span{font-size:.8rem;color:var(--cc-muted);margin-right:.3rem}.cidr-calculator .cidr-status{margin:1rem 0;min-height:1.65em;color:var(--cc-muted);font-size:.85rem;overflow-wrap:anywhere}.cidr-summary{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:1rem;background:var(--cc-surface);padding:1.2rem;border-radius:.85rem}.cidr-summary span{display:block;color:var(--cc-muted);font-size:.8rem}.cidr-summary strong{display:block;font-family:ui-monospace,monospace;font-size:clamp(1.2rem,4vw,1.8rem);overflow-wrap:anywhere}.cidr-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1px;margin:1rem 0;border:1px solid var(--cc-border);border-radius:.85rem;overflow:hidden;background:var(--cc-border)}.cidr-grid>div{padding:1rem;background:var(--cc-panel)}.cidr-grid .cidr-wide{grid-column:1/-1}.cidr-grid dt{font-size:.8rem;color:var(--cc-muted)}.cidr-grid dd{margin:.25rem 0 0;font-family:ui-monospace,monospace;font-size:.95rem;overflow-wrap:anywhere}.cidr-bits{background:var(--cc-surface);padding:1rem;border-radius:.7rem}.cidr-bits>span{display:block;font-size:.8rem;color:var(--cc-muted)}.cidr-bits code{display:block;margin-top:.4rem;font-family:ui-monospace,monospace;overflow-wrap:anywhere;letter-spacing:.06em;font-size:.85rem}.cidr-bits b{color:var(--cc-accent)}@media(max-width:700px){.cidr-inputs{grid-template-columns:1fr}.cidr-grid{grid-template-columns:1fr}.cidr-calculator{padding:1rem}}