:root{color-scheme:dark;--bg:#0a1f1c;--surface:#10302c;--surface-2:#143834;--surface-3:#0d2825;--text:#f1ece1;--muted:#a9c2bc;--muted-2:#6f8f88;--border:#2a4a44;--accent:#8fb8ad;--accent-ink:#10302c;--warning-bg:#2a2412;--warning-border:#6b5420;--warning-text:#e4c47d;--radius:10px;--font-display:"Fraunces",ui-serif,Georgia,serif;--font-body:"Work Sans",ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}*{box-sizing:border-box}body,html{margin:0;padding:0;min-height:100%}body{background:var(--bg);color:var(--text);font-family:var(--font-body)}a{color:var(--accent);text-decoration:none}a:hover{color:#b7d6cc}button,input{font:inherit}button{cursor:pointer}.page{min-height:100vh}.container{width:min(1120px,calc(100% - 32px));margin:0 auto}.header{border-bottom:1px solid var(--border)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:24px 0}.brand{display:inline-flex;align-items:center;gap:12px;font-weight:600;font-size:15px;letter-spacing:.01em}.header-pill{font-size:12px;color:var(--muted);border:1px solid var(--border);border-radius:4px;padding:6px 10px}.hero{padding:40px 0 0}.hero-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:40px;gap:40px;align-items:stretch}.hero-intro{display:flex;flex-direction:column}.hero-intro h1{font-size:clamp(1.9rem,3vw,2.3rem)}.kicker{display:inline-block;font-size:12px;color:var(--accent);letter-spacing:.08em;text-transform:uppercase;font-weight:600;margin-bottom:14px}h1{font-family:var(--font-display);font-weight:500;font-size:clamp(2rem,4vw,2.5rem);line-height:1.1;letter-spacing:-.01em;margin:0 0 12px;color:var(--text)}.hero-copy{color:var(--muted);font-size:15px;line-height:1.65;max-width:56ch;margin:0}.feature-grid{margin-top:22px;display:grid;grid-gap:10px;gap:10px;grid-template-columns:1fr}.feature-card{border:1px solid var(--border);border-radius:var(--radius);padding:14px 16px}.feature-card h3{margin:0 0 4px;font-size:13px;font-weight:600;color:var(--text)}.feature-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.5}.card{border-radius:var(--radius);background:var(--surface-2);padding:28px}.card,.mode-switch{border:1px solid var(--border)}.mode-switch{display:flex;background:var(--surface-3);border-radius:8px;padding:4px;margin-bottom:20px}.mode-btn{flex:1 1;border:none;background:transparent;color:var(--muted);font-size:12px;font-weight:600;padding:10px 8px;border-radius:6px}.mode-btn.active{background:var(--accent);color:var(--accent-ink);font-weight:700}.result-hero{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;padding-bottom:20px;border-bottom:1px solid var(--border)}.result-tagline{color:var(--muted);font-size:12px;margin:0 0 6px}.result-value{font-family:var(--font-display);font-weight:500;font-size:2.3rem;letter-spacing:-.01em;color:var(--text)}.result-now{font-size:12px;color:var(--muted-2)}.field-group{margin-top:14px}.label-row{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:8px}.label{font-size:13px;font-weight:600;color:#d7e5e1}.muted-value{font-family:var(--font-display);font-size:14px;font-weight:500;color:var(--accent)}.input,.range{width:100%}.input{height:46px;border-radius:6px;border:1px solid var(--border);padding:0 14px;background:var(--surface-3);color:var(--text);outline:none}.input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(143,184,173,.2)}.range{accent-color:var(--accent);height:4px}.preset-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));grid-gap:8px;gap:8px}.preset-btn{border:1px solid var(--border);border-radius:6px;background:transparent;color:#d7e5e1;padding:12px 14px;text-align:left;line-height:1.35;font-size:13px;transition:border-color .12s ease,background .12s ease}.preset-btn.active,.preset-btn:hover{border-color:var(--accent)}.preset-btn.active{background:var(--accent);color:var(--accent-ink);font-weight:600}.slider-panel{border:1px solid var(--border);background:var(--surface-3);border-radius:6px;padding:16px;margin-top:14px}.action-btn{width:100%;border:none;border-radius:6px;background:var(--accent);color:var(--accent-ink);height:46px;font-weight:700;font-size:14px;display:inline-flex;align-items:center;justify-content:center;gap:8px;margin-top:22px}.action-btn:hover{background:#a2c6bc}.summary-section{margin-top:24px}.summary-grid{display:grid;grid-gap:12px;gap:12px;grid-template-columns:repeat(2,1fr)}.summary-tile{border-radius:var(--radius);padding:16px}.summary-tile.accent{background:var(--accent);color:var(--accent-ink)}.summary-tile.outline{border:1px solid var(--border);background:var(--surface-2);color:var(--text)}.summary-label{font-size:11px;text-transform:uppercase;letter-spacing:.06em;opacity:.8;margin-bottom:6px}.summary-value{font-family:var(--font-display);font-size:1.5rem;font-weight:600;line-height:1.1}.detail-list{display:grid;grid-gap:10px;gap:10px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface-2);padding:16px;margin-top:12px}.detail-row{display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:14px;color:var(--text)}.detail-row span{color:var(--muted)}.divider{height:1px;background:var(--border);margin:18px 0}.callout{border-radius:var(--radius);background:var(--surface-3);border:1px solid var(--border);padding:16px;color:var(--muted);font-size:13px;line-height:1.6}.callout strong{color:var(--text)}.sidebar-card{border-radius:var(--radius);background:var(--surface-2);border:1px solid var(--border);padding:24px}.sidebar-card h2{margin:0 0 12px;font-family:var(--font-display);font-weight:500;font-size:1.15rem}.sidebar-card p{color:var(--muted);line-height:1.65;font-size:14px;margin:0 0 8px}.footer{margin-top:28px;padding:22px 0 40px;border-top:1px solid var(--border)}.footer-grid{display:grid;grid-gap:14px;gap:14px;grid-template-columns:1fr 1fr;align-items:center}.footer-credit{margin-top:24px;padding-top:20px;border-top:1px solid var(--border);font-size:12px;color:var(--muted-2);text-align:center}.footer-credit a{color:var(--muted);font-weight:600}.footer-credit a:hover{color:var(--accent)}.warn{border-radius:var(--radius);border:1px solid var(--warning-border);background:var(--warning-bg);color:var(--warning-text);padding:16px}.warn strong{display:block;margin-bottom:6px}.small{font-size:13px;line-height:1.6;color:var(--muted)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);border:0}@media (max-width:980px){.hero-grid{grid-template-columns:1fr}}@media (max-width:920px){.footer-grid{grid-template-columns:1fr}}@media (max-width:640px){.container{width:min(100% - 20px,880px)}.card,.sidebar-card{padding:18px}.preset-grid,.summary-grid{grid-template-columns:1fr}.result-hero{flex-direction:column;align-items:flex-start}}