:root{color-scheme:dark;--bg:#070c13;--panel:#0d1724;--text:#edf3fb;--muted:#acbdd0;--line:#2b415a;--blue:#488aff;--cyan:#27d4e6;--error:#ffb1a1;font-family:Archivo,Arial,sans-serif;background:var(--bg);color:var(--text)}
*{box-sizing:border-box}body{margin:0}a{color:var(--cyan);text-underline-offset:.22em}a:hover{text-decoration-thickness:2px}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--cyan);outline-offset:4px}.skip{position:absolute;left:1rem;top:-5rem;background:var(--panel);padding:1rem;z-index:2}.skip:focus{top:1rem}.site-header,main,footer{width:min(1120px,calc(100% - 40px));margin:auto}.site-header{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:26px 0;border-bottom:1px solid var(--line)}.brand{font-size:1.25rem;font-weight:750;color:var(--text);text-decoration:none;letter-spacing:-.04em}.site-header>a:last-child{font-size:.9rem}.intro{padding:62px 0 38px;max-width:810px}.context{margin:0 0 14px;color:var(--cyan);font-size:.95rem}h1{font-size:clamp(2.2rem,5vw,3.6rem);letter-spacing:-.045em;line-height:1.06;margin:0 0 25px;font-weight:750}p{line-height:1.65}h2{font-size:1.45rem;letter-spacing:-.025em;margin:0 0 14px}h3{font-size:1rem;margin:0 0 9px}.intro>p:not(.context){max-width:69ch;font-size:1.08rem}.muted,small,.local-note{color:var(--muted)}.workspace{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,1fr);align-items:start;gap:48px}form>p{color:var(--muted);font-size:.95rem;margin:0 0 25px}.field{display:flex;flex-direction:column;gap:9px;margin:0 0 24px}.currency{max-width:300px}label{font-size:1rem;font-weight:650}input,select{width:100%;min-height:49px;padding:11px 13px;font:inherit;border:1px solid #52677f;border-radius:4px;background:#0b1420;color:var(--text)}input[aria-invalid=true]{border-color:var(--error)}small{font-size:.85rem;line-height:1.55}fieldset{padding:22px 0 0;border:0;border-top:1px solid var(--line);margin:28px 0 0}legend{font-size:.9rem;color:var(--cyan);padding:0 12px 0 0}.actions{display:flex;gap:12px;flex-wrap:wrap}button{font:inherit;font-weight:650;background:var(--blue);color:#03101f;padding:14px 19px;border:1px solid var(--blue);border-radius:4px;cursor:pointer;min-height:48px}button:hover{filter:brightness(1.12)}button.secondary{background:transparent;color:var(--text);border-color:#52677f}.error{color:var(--error);border-left:3px solid var(--error);padding:0 0 0 14px}.result-panel{position:sticky;top:25px;background:var(--panel);padding:30px;border-top:4px solid var(--cyan)}.empty{color:var(--muted);margin:20px 0 30px}.totals{margin:25px 0}.totals>div{display:flex;justify-content:space-between;align-items:baseline;gap:18px;padding:14px 0;border-bottom:1px solid var(--line)}dt{font-size:.95rem;line-height:1.5}dd{margin:0;font-size:1.2rem;font-weight:650;text-align:right;overflow-wrap:anywhere}.totals .difference{border-bottom:0;padding-top:21px}.difference dd{color:var(--cyan)}.verdict{font-weight:650;font-size:1.05rem}.assumption{font-size:.88rem;color:var(--muted)}.break-even{border-left:3px solid var(--blue);padding-left:15px;font-size:.95rem}.formula{border-top:1px solid var(--line);margin-top:25px;padding-top:24px}.formula p,.local-note{font-size:.86rem}.local-note{margin-bottom:0}.limits{margin:64px 0 60px;padding-top:30px;border-top:1px solid var(--line);max-width:850px}.limits p{max-width:76ch;color:var(--muted)}.guide-link{display:inline-block;margin-top:10px}footer{display:flex;gap:20px;align-items:center;padding:25px 0 35px;border-top:1px solid var(--line);font-size:.85rem}footer p{margin:0;flex:1;color:var(--muted)}@media(max-width:760px){.site-header,main,footer{width:calc(100% - 32px)}.intro{padding-top:38px}.workspace{grid-template-columns:1fr;gap:35px}.result-panel{position:static;padding:25px}.limits{margin:40px 0}.site-header>a:last-child{max-width:145px;text-align:right}footer{align-items:flex-start;flex-direction:column;gap:12px}.totals>div{gap:12px}dd{font-size:1.08rem}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto}}
details{margin:12px 0 28px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0}summary{color:var(--cyan);cursor:pointer;line-height:1.5;font-weight:650}summary:focus-visible{outline:3px solid var(--cyan);outline-offset:4px}details[open]>p{font-size:.9rem}label .muted{font-size:.85rem;font-weight:400}

.product-offer{margin-top:28px;padding-top:26px;border-top:1px solid var(--cyan)}.product-offer h3{font-size:1.4rem;line-height:1.25;letter-spacing:-.025em}.product-offer p{font-size:.95rem}.product-offer .assumption{font-size:.84rem}.offer-cta{display:block;margin:22px 0 12px;padding:15px 18px;border-radius:4px;background:var(--blue);color:#03101f;font-weight:700;line-height:1.4;text-align:center;text-decoration:none}.offer-cta:hover{filter:brightness(1.12)}