.container{width:min(calc(100% - 2rem),var(--container));margin-inline:auto}.narrow{max-width:780px}.section{padding:var(--section) 0}.section-muted{background:var(--surface-soft)}.site-header{position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(203,215,200,.8);background:rgba(246,248,245,.88);backdrop-filter:blur(16px)}.header-inner{height:76px;display:flex;align-items:center;justify-content:space-between;gap:1.5rem}.brand{display:inline-flex;align-items:center;gap:.75rem}.brand-mark{display:grid;place-items:center;width:44px;height:44px;border-radius:14px;background:var(--text);color:white;box-shadow:0 10px 24px rgba(16,35,24,.16)}.brand-mark .icon{width:1.35rem;height:1.35rem}.brand>span:last-child{display:flex;flex-direction:column;line-height:1.05}.brand strong{font-size:1.08rem}.brand small{max-width:245px;margin-top:.3rem;color:var(--text-soft);font-size:.67rem}.desktop-nav{display:flex;align-items:center;gap:.35rem;padding:.3rem;border:1px solid var(--border);border-radius:var(--pill);background:var(--surface)}.desktop-nav a{padding:.55rem .85rem;border-radius:var(--pill);color:var(--text-soft);font-size:.88rem;font-weight:750}.desktop-nav a:hover{background:var(--surface-soft);color:var(--text)}.header-actions{display:flex;align-items:center;gap:.55rem}.language-menu{position:relative}.header-button,.menu-toggle{display:inline-flex;align-items:center;justify-content:center;gap:.45rem;min-height:42px;padding:.6rem .8rem;border:1px solid var(--border);border-radius:.8rem;background:var(--surface);color:var(--text);font-weight:750}.language-popover{position:absolute;right:0;top:calc(100% + .65rem);width:180px;padding:.45rem;border:1px solid var(--border);border-radius:1rem;background:var(--surface);box-shadow:var(--shadow-md)}.language-popover a{display:block;padding:.65rem .75rem;border-radius:.7rem;font-weight:700}.language-popover a:hover,.language-popover a[aria-current=page]{background:var(--surface-soft);color:var(--brand)}.menu-toggle{display:none;width:42px;padding:0}.mobile-nav{display:none}.site-footer{padding:4.5rem 0 1.5rem;border-top:1px solid var(--border);background:#102318;color:#e8f1e9}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:3rem}.footer-grid h2{font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;color:#9eb2a4}.footer-grid p{max-width:340px;color:#9eb2a4}.footer-grid>div:not(:first-child){display:flex;flex-direction:column;gap:.55rem}.footer-grid a:hover{color:#fff}.footer-brand .brand-mark{background:#e8f1e9;color:#102318}.footer-brand small{color:#9eb2a4}.footer-bottom{display:flex;justify-content:space-between;gap:1rem;margin-top:3rem;padding-top:1.4rem;border-top:1px solid rgba(255,255,255,.12);color:#9eb2a4;font-size:.78rem}.calculator-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:1.4rem;align-items:start}.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:4rem}.skip-link{position:fixed;top:.5rem;left:.5rem;z-index:100;transform:translateY(-150%);padding:.65rem 1rem;background:var(--text);color:white;border-radius:.7rem}.skip-link:focus{transform:none}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.reveal{opacity:0;transform:translateY(16px);transition:.55s var(--ease)}.reveal.is-visible{opacity:1;transform:none}
@media(max-width:960px){.desktop-nav{display:none}.menu-toggle{display:inline-grid}.mobile-nav{position:absolute;left:1rem;right:1rem;top:calc(100% + .5rem);padding:.65rem;border:1px solid var(--border);border-radius:1rem;background:var(--surface);box-shadow:var(--shadow-md)}.mobile-nav:not([hidden]){display:grid}.mobile-nav a{padding:.75rem;border-radius:.7rem;font-weight:750}.mobile-nav a:hover{background:var(--surface-soft)}.calculator-layout,.content-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.calculator-sidebar{grid-row:auto}.brand small{display:none}}
@media(max-width:620px){.container{width:min(calc(100% - 1.25rem),var(--container))}.header-inner{height:66px}.brand-mark{width:40px;height:40px}.header-button span{display:none}.footer-grid{grid-template-columns:1fr;gap:2rem}.footer-bottom{flex-direction:column}.site-footer{padding-top:3rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.reveal{opacity:1;transform:none;transition:none}}