:root{--navy:#101936;--navy2:#17254d;--gold:#b89a2b;--paper:#f7f5ef;--white:#fff;--ink:#10162c;--muted:#626a78;--line:#d9deea;--blue:#285a96}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.55 system-ui,-apple-system,"Segoe UI",sans-serif}header{height:76px;padding:0 max(24px,calc((100% - 1180px)/2));display:flex;align-items:center;justify-content:space-between;background:#fff;border-bottom:1px solid var(--line)}header a{font-weight:800;color:var(--navy);text-decoration:none}header a span{color:var(--gold)}header strong{font-size:.78rem;color:#8b5a00}main{max-width:1180px;margin:auto;padding:48px 24px 80px}.hero{max-width:860px;margin-bottom:28px}.hero>span{font-weight:800;color:var(--gold);letter-spacing:.1em;font-size:.78rem}.hero h1{font-size:clamp(2rem,4vw,3.4rem);line-height:1.08;margin:.55rem 0 1rem}.hero p{font-size:1.12rem;color:var(--muted)}.calculator{background:var(--navy);padding:28px;border-radius:24px;display:grid;gap:24px}.input-card,.result-card{background:#fff;border-radius:18px;padding:28px}.input-card h2{margin-top:0}.params,.money-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.money-grid{grid-template-columns:repeat(3,minmax(0,1fr));margin-top:24px}label{display:grid;gap:7px;font-weight:700}input,select{width:100%;min-height:48px;border:1px solid #b8c2d6;border-radius:10px;padding:10px 12px;font:inherit;color:var(--ink);background:#fff}input:focus,select:focus,button:focus,a:focus{outline:3px solid #d8c46d;outline-offset:2px}.money-grid fieldset{margin:0;border:1px solid var(--line);border-radius:14px;padding:16px;display:grid;gap:14px}.money-grid legend{font-weight:800;padding:0 6px}.money-grid label.active input{border:2px solid var(--gold);background:#fffbed}.money-grid label.active small:after{content:"Βάση υπολογισμού";color:#7a6214;font-weight:700}.hint,.disclaimer{color:var(--muted)}.error,.warning{padding:12px 14px;border-radius:10px}.error{background:#fff0f0;color:#8f1d1d}.warning{background:#fff8dc;color:#705700}.tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;border-bottom:1px solid var(--line);padding-bottom:10px}.tabs button{min-height:48px;border:0;border-radius:9px;background:#eef1f7;color:var(--navy);font-weight:800;padding:10px}.tabs button[aria-selected="true"]{background:var(--navy);color:#fff}.tab{display:none;padding-top:24px}.tab.active{display:block}.summary-grid,.detail-grid,.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.metric{border:1px solid var(--line);border-radius:12px;padding:15px}.metric span{display:block;color:var(--muted);font-size:.88rem}.metric strong{font-size:1.45rem}.bar{height:34px;display:flex;border-radius:9px;overflow:hidden;margin:16px 0}.bar span{min-width:2px}.legend{display:grid;gap:8px}.legend div{display:flex;justify-content:space-between;gap:14px}.equation{border-bottom:1px solid var(--line);padding:10px 0;display:flex;justify-content:space-between}.info{max-width:860px;margin:52px auto}.info details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:15px;margin:10px 0}.info summary{font-weight:800;cursor:pointer}.cta{margin-top:32px;background:var(--navy);color:#fff;padding:26px;border-radius:18px}.cta a{display:inline-flex;min-height:46px;align-items:center;background:#fff;color:var(--navy);padding:0 18px;border-radius:9px;font-weight:800;text-decoration:none}@media(max-width:820px){main{padding:32px 16px 56px}.calculator{padding:14px}.input-card,.result-card{padding:20px}.money-grid{grid-template-columns:1fr}.tabs{grid-template-columns:1fr}.summary-grid,.detail-grid,.compare-grid{grid-template-columns:1fr}}@media(max-width:560px){header{height:auto;min-height:68px;padding:12px 16px;gap:12px}header a span{display:block}.params{grid-template-columns:1fr}.hero h1{font-size:2rem}.calculator{border-radius:16px;padding:10px}.input-card,.result-card{padding:16px;border-radius:13px}.metric strong{font-size:1.25rem;overflow-wrap:anywhere}}