:root{--ink:#1a2b25;--muted:#60736b;--paper:#f7f7f2;--card:#fff;--line:#dce4dd;--accent:#13795b;--accent-dark:#0d5c43;--soft:#e6f3eb}*{box-sizing:border-box}body{margin:0;color:var(--ink);background:var(--paper);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}.shell{width:min(100% - 32px,860px);margin:0 auto;padding:48px 0}.brand{margin-bottom:38px}.brand-logo{display:block;width:220px;height:auto}.hero{max-width:680px;margin-bottom:38px}.eyebrow{margin:0 0 12px;color:var(--accent);font-size:.78rem;font-weight:750;letter-spacing:.12em;text-transform:uppercase}h1{max-width:620px;margin:0;font-size:clamp(2.2rem,6vw,4.4rem);line-height:1.02;letter-spacing:-.055em}.intro{max-width:620px;margin:20px 0 0;color:var(--muted);font-size:1.08rem;line-height:1.6}.calculator{overflow:hidden;border:1px solid var(--line);border-radius:20px;background:var(--card);box-shadow:0 18px 45px rgba(20,55,38,.08)}form{padding:28px;border-bottom:1px solid var(--line)}.fields{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}label{display:grid;gap:8px;font-weight:700;font-size:.92rem}small{color:var(--muted);font-weight:500}input{width:100%;padding:12px;border:1px solid var(--line);border-radius:9px;color:var(--ink);background:#fff;font:inherit;font-weight:600}input:focus{outline:3px solid #b9decf;border-color:var(--accent)}button{margin-top:22px;padding:13px 18px;border:0;border-radius:9px;color:#fff;background:var(--accent);cursor:pointer;font:inherit;font-weight:750}button:hover{background:var(--accent-dark)}.error{min-height:1.25em;margin:12px 0 -12px;color:#b51e35;font-size:.9rem}.results{padding:28px}.interest-hero{padding:12px 0 28px;text-align:center}.interest-amount{margin:8px 0;font-size:clamp(2.8rem,8vw,5rem);font-weight:800;line-height:1;letter-spacing:-.07em}.highlight{margin-top:24px;padding:24px;border-radius:13px;background:var(--soft);text-align:center}.result-label,.result-context,.metrics p{margin:0;color:var(--muted)}.result-label{font-weight:700}.sip-amount{margin:7px 0 4px;color:var(--accent-dark);font-size:clamp(2rem,5vw,3.1rem);font-weight:800;letter-spacing:-.05em}.metrics{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.metrics article{padding-right:16px;border-right:1px solid var(--line)}.metrics article:last-child{padding-right:0;border:0}.metrics p{font-size:.85rem;line-height:1.35}.metrics strong{display:block;margin-top:7px;font-size:1.15rem;letter-spacing:-.025em}.note{margin-top:22px;color:var(--muted);font-size:.87rem;line-height:1.55}.note p{margin:0}.note strong{color:var(--ink)}@media(max-width:640px){.shell{width:min(100% - 24px,860px);padding-top:36px}.brand{margin-bottom:30px}.brand-logo{width:180px}.fields,.metrics{grid-template-columns:1fr}.metrics article{padding:0 0 14px;border-right:0;border-bottom:1px solid var(--line)}.metrics article:last-child{padding-bottom:0;border-bottom:0}form,.results{padding:20px}}