:root{--ink:#14213b;--blue:#004aac;--accent:#00b894;--line:#dce6f1;--paper:#fff;--muted:#53647b}
html{scroll-behavior:smooth}body{background:#f4f7fc;color:var(--ink)}.wrapper{width:min(calc(100% - 36px),1120px)}header{background:linear-gradient(100deg,#050f37,#003982);border-bottom:3px solid #0cb4a7}header img{display:block;max-width:100%;object-fit:contain}
main{padding:24px 0 64px}.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:.85rem;color:#61718a;margin-bottom:23px}.crumbs a{color:#31598e;text-decoration:none}.crumbs a:hover{text-decoration:underline}
.hero{padding:clamp(22px,4vw,46px) 0 10px}.eyebrow{display:inline-block;font-size:.76rem;font-weight:800;color:#006792;letter-spacing:.095em;text-transform:uppercase}.hero h1{font-size:clamp(2rem,5vw,3.4rem);max-width:850px;letter-spacing:-.035em;margin:12px 0 18px;color:#10295c}.intro{max-width:850px;color:#39495e;font-size:clamp(1.04rem,1.6vw,1.2rem)}.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin:23px 0}.hero-points span{background:#e7f3f5;color:#155d63;border:1px solid #c5e5e8;padding:7px 14px;border-radius:100px;font-weight:700;font-size:.8rem}
.panel{background:var(--paper);border:1px solid #dfe8f4;border-radius:22px;box-shadow:0 10px 30px rgba(20,42,86,.055);padding:clamp(18px,3vw,32px);margin:24px 0}.panel h2{font-size:clamp(1.4rem,3vw,1.95rem);color:#162e61;line-height:1.2;margin:8px 0 14px}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:20px;margin-bottom:22px}.section-heading p{color:var(--muted);max-width:340px;font-size:.91rem;margin:0}.tool{border-top:5px solid #0b86bd}
.form-sections{display:grid;gap:22px}.fields-block{border:1px solid #dce6f2;border-radius:17px;margin:0;padding:20px;background:#fbfdff;min-width:0}.fields-block legend{color:#1b335c;font-weight:800;padding:0 9px;font-size:1.03rem}.fields-block legend small{font-size:.76rem;color:var(--muted);font-weight:500;display:inline-block;margin-left:6px}.step{display:inline-grid;place-items:center;width:27px;height:27px;border-radius:8px;background:#e4efff;color:var(--blue);margin-right:5px;font-size:.84rem}.field-grid{display:grid;gap:16px}.field-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.field-grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.field-grid.below{margin-top:18px}.field-grid label{display:grid;gap:7px;font-size:.87rem;font-weight:700;color:#273956;align-content:start}.field-grid input{width:100%;height:48px;background:#fff;border:1px solid #bdcce0;border-radius:10px;padding:12px;font:600 1rem/1.1 system-ui,sans-serif;color:#172b4c;transition:border-color .15s,box-shadow .15s}.field-grid input:focus{border-color:#0059c8;outline:3px solid #d7e8ff}.field-grid small,.switchline small{display:block;color:#63748c;font-size:.74rem;font-weight:400;line-height:1.45}.switchline{display:flex;align-items:flex-start;gap:11px;border:1px solid #cadeed;background:#eef7ff;padding:14px 15px;border-radius:12px;margin-top:20px;cursor:pointer}.switchline input{width:20px;height:20px;accent-color:var(--blue);margin-top:1px;flex:none}.switchline span{display:grid;gap:4px}.subtle{color:#637187;font-size:.82rem}.actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px}.actions button,.cta-link{min-height:45px;display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:750;font-size:.93rem;border-radius:10px;padding:12px 20px;text-decoration:none;transition:transform .12s,box-shadow .12s}.actions button:hover,.cta-link:hover{transform:translateY(-1px)}.btn-primary{background:linear-gradient(110deg,#004aac,#0066d1);color:white;box-shadow:0 6px 15px #004aac29}.btn-secondary{background:#eef3fa;border:1px solid #ccd8e8;color:#153b70}.btn-secondary:hover{background:#e1edff}.error{background:#fff0ee;border:1px solid #e6aaa5;border-radius:10px;padding:12px 16px;color:#a02624;font-weight:700}.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:13px}.metric{padding:18px 14px;border:1px solid #deebf5;background:#f3f7fc;border-radius:15px;display:flex;flex-direction:column;gap:7px;min-width:0}.metric.primary{background:linear-gradient(145deg,#004aac,#0873ce);border-color:#004aac;color:white}.metric span{font-size:.83rem;font-weight:700}.metric strong{font-size:clamp(1.4rem,2.5vw,2.15rem);letter-spacing:-.025em;line-height:1.13;overflow-wrap:anywhere;font-variant-numeric:tabular-nums}.metric small{font-size:.75rem;color:inherit;opacity:.8}.result-notes{margin:20px 0}.result-notes p{font-size:.83rem;color:#5e6d7e;padding:6px 0;margin:4px 0}.result-notes .notice-warn{background:#fff6e6;border:1px solid #f4d9a8;color:#734c13;padding:13px;border-radius:10px}
.result-details{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:16px;margin:24px 0}.result-surface{border-radius:16px;border:1px solid #dce6f0;padding:20px;background:#fcfdff;min-width:0}.result-surface h3,.results h3{color:#18376b;margin:0 0 12px}.result-surface>p{margin:0 0 10px}.stats{display:grid;gap:0;margin:14px 0 0}.stats div{display:flex;justify-content:space-between;align-items:baseline;gap:15px;border-bottom:1px solid #e5edf6;padding:9px 0}.stats dt{color:#5e6e85;font-size:.8rem}.stats dd{font-weight:750;text-align:right;margin:0;font-size:.89rem}.layout-diagram{display:grid;gap:4px;background:#e9f2fa;border:2px solid #8fb3d0;border-radius:10px;padding:12px;min-height:144px;align-content:center}.diagram-unit{display:block;aspect-ratio:1.15;background:linear-gradient(140deg,#d3e8ff,#7faee2);border:1px solid #3772b9;border-radius:4px;box-shadow:inset -3px -3px 0 #5a97cc50}.diagram-caption{font-size:.79rem;color:#5d7184;margin-top:12px!important}.formula{background:#eaf7fa;border-left:4px solid #008b9a;border-radius:12px;padding:17px 19px;margin:20px 0}.formula p{overflow-wrap:break-word;font-size:.89rem}.table-scroll{overflow:auto;max-width:100%}table{width:100%;border-collapse:collapse;min-width:660px;font-size:.85rem}caption{text-align:left;color:#64748b;font-size:.78rem;padding:6px 0}th{background:#eaf0f9;color:#224575;text-align:left}td,th{padding:12px 11px;border-bottom:1px solid #dce5f2}tbody tr:nth-child(even){background:#fafcff}.results .section-heading{align-items:center}
.guide ol{padding-left:23px;color:#34425a}.guide li{margin:11px 0}.example-note{padding:18px;background:#eff9f3;border:1px solid #cde7d6;border-radius:12px;color:#255d3d}.guide details{border-bottom:1px solid #dee8f3;padding:16px 2px}.guide summary{font-weight:800;color:#24446c;cursor:pointer}.guide details p{color:#526279;margin:9px 0}.cta{background:linear-gradient(120deg,#eaf2ff,#f4fbff);border-color:#c9ddf6}.cta p{max-width:790px}.cta-link{background:#004aac;color:white;box-shadow:0 5px 14px #004aac24}.cta-link:hover{color:white}.disclosure{font-size:.78rem;color:#597087;margin:14px 0 0}.related{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.related h2{width:100%;font-size:1.25rem;color:#18356a}.related a{padding:9px 14px;border:1px solid #d6e3f0;background:white;border-radius:10px;text-decoration:none;font-size:.84rem;font-weight:700}.related a:hover{text-decoration:underline}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #59adf7;outline-offset:3px}[hidden]{display:none!important}
@media(max-width:900px){.metrics{grid-template-columns:repeat(2,minmax(0,1fr))}.result-details{grid-template-columns:1fr}.section-heading{align-items:flex-start;flex-direction:column}}
@media(max-width:600px){.wrapper{width:calc(100% - 24px)}main{padding-top:18px}.hero{padding-top:12px}.hero h1{font-size:2.03rem}.hero-points{gap:6px}.hero-points span{font-size:.72rem;padding:5px 10px}.panel{border-radius:16px;padding:17px;margin:18px 0}.fields-block{padding:14px 12px}.fields-block legend{line-height:1.35;font-size:.94rem}.fields-block legend small{display:block;margin-left:34px}.field-grid.three,.field-grid.two{grid-template-columns:1fr;gap:12px}.actions{display:grid;grid-template-columns:1fr}.actions button{width:100%}.metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.metric{padding:13px 10px}.metric strong{font-size:1.5rem}.metric span{font-size:.74rem}.metric small{font-size:.68rem}.result-surface{padding:14px}.related{gap:9px}.stats div{gap:10px}.stats dt{max-width:55%}}
@media(max-width:350px){.metrics{grid-template-columns:1fr}.crumbs{gap:5px;font-size:.78rem}.hero h1{font-size:1.85rem}.metric strong{font-size:1.8rem}}
@media print{header,.crumbs,.tool,.guide,.cta,.related,.print-actions,.ent-site-footer,.hero-points{display:none!important}body{background:white;color:#111}.wrapper{width:100%}main{padding:0}.hero{padding:0}.hero h1{font-size:22pt}.panel{box-shadow:none;border:0;padding:0}.results{break-before:avoid}.result-surface,.metric{break-inside:avoid}.metrics{grid-template-columns:repeat(4,1fr)}.result-details{grid-template-columns:1fr 1fr}.table-scroll{overflow:visible}table{min-width:0;font-size:8pt}.results .subtle{font-size:9pt}}