:root{--bg:#f6f4ee;--paper:#fff;--ink:#20211f;--muted:#686a64;--accent:#d9651a;--accent-dark:#9c3e06;--green:#256247;--line:#e6e1d7;--soft:#fff6ec;--green-soft:#eef7f1;--shadow:0 14px 35px rgba(58,45,26,.08);--radius:20px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);line-height:1.58}a{color:inherit}.wrap{width:min(1120px,92%);margin:auto}.skip{position:absolute;left:-9999px;top:auto}.skip:focus{left:1rem;top:1rem;background:#fff;padding:.7rem 1rem;z-index:100;border-radius:8px}.topbar{background:#1f211f;color:#fff;font-size:.88rem;padding:.46rem 0}.topbar .wrap{display:flex;justify-content:space-between;gap:1rem}.site-header{position:sticky;top:0;background:rgba(246,244,238,.96);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);z-index:20}.nav{display:flex;align-items:center;justify-content:space-between;padding:.9rem 0;gap:1rem}.brand{display:flex;align-items:center;gap:.7rem;text-decoration:none;font-weight:900;font-size:1.2rem}.logo{width:42px;height:42px;border-radius:13px;background:linear-gradient(135deg,var(--accent),#ef9b45);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 6px 18px rgba(217,101,26,.23)}.navlinks{display:flex;gap:1.1rem;font-size:.94rem}.navlinks a{text-decoration:none;color:var(--muted)}.navlinks a:hover{color:var(--ink)}.hero{padding:4.2rem 0 2.8rem}.hero-grid{display:grid;grid-template-columns:1.35fr .65fr;gap:2rem;align-items:center}.eyebrow,.pill,.status{display:inline-flex;padding:.33rem .68rem;border-radius:999px;font-size:.8rem;font-weight:800}.eyebrow{background:#eee8dc;color:#574f43}.pill{background:var(--green-soft);color:var(--green)}.status{background:#f2f0e9;color:#5b5d57}.hero h1{font-size:clamp(2.25rem,5vw,4.5rem);line-height:1.02;margin:.8rem 0 1rem;letter-spacing:-.045em;max-width:850px}.hero p{font-size:1.08rem;color:var(--muted);max-width:760px}.hero-card,.panel,.calc-box,.info-box,.source-card,.faq-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow)}.hero-card{padding:1.45rem}.metric{display:grid;grid-template-columns:repeat(2,1fr);gap:.7rem;margin-top:1rem}.metric div{background:#faf8f3;border:1px solid var(--line);padding:.8rem;border-radius:14px}.metric b{display:block;font-size:1.45rem;color:var(--accent)}.search{display:flex;gap:.6rem;margin-top:1.4rem}.search input{flex:1}.search input,.field input{padding:.95rem 1rem;border-radius:13px;border:1px solid #d8d2c7;background:#fff;font:inherit;color:var(--ink);outline:none}.search input:focus,.field input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(217,101,26,.12)}.btn{border:0;background:var(--accent);color:#fff;border-radius:13px;padding:.95rem 1.15rem;font-weight:850;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}.btn:hover{background:var(--accent-dark)}.section{padding:2.7rem 0}.section h2{font-size:clamp(1.65rem,3vw,2.2rem);margin:0 0 .35rem}.sub{color:var(--muted);margin-top:0}.category-row{display:flex;gap:.5rem;flex-wrap:wrap;margin:1rem 0 1.2rem}.chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:.48rem .75rem;cursor:pointer;font-weight:700;color:#5e605b}.chip.active{background:#242724;color:#fff;border-color:#242724}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.card{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:1.15rem;text-decoration:none;box-shadow:0 6px 18px rgba(60,45,25,.04);transition:.18s;display:block}.card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.card .cat{font-size:.76rem;color:var(--green);font-weight:850;text-transform:uppercase;letter-spacing:.04em}.card .ico{font-size:1.35rem;float:right}.card h3{margin:.4rem 0 .45rem}.card p{margin:0;color:var(--muted);font-size:.93rem}.adslot{border:1px dashed #c7bba7;background:#fbf8f0;border-radius:16px;padding:1rem;text-align:center;color:#817766;font-size:.88rem}.own-ad{background:linear-gradient(135deg,#20252c,#101419);color:#fff;border-radius:22px;padding:1.45rem}.own-ad small{opacity:.68}.own-ad h2,.own-ad h3{margin:.35rem 0}.trust-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:.8rem}.trust-strip div{background:#fff;border:1px solid var(--line);border-radius:16px;padding:1rem}.trust-strip b{display:block;margin-bottom:.25rem}.breadcrumbs{font-size:.86rem;color:var(--muted);padding-top:1rem}.breadcrumbs a{color:var(--muted)}.calc-layout{display:grid;grid-template-columns:minmax(0,1fr) 330px;gap:1.25rem;padding:1.6rem 0 2rem}.calc-box,.info-box,.source-card,.faq-card{padding:1.4rem}.calc-box h1{margin:.55rem 0 .35rem;font-size:clamp(2rem,4vw,3rem);letter-spacing:-.03em}.lede{color:var(--muted);font-size:1.03rem}.fields{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem;margin-top:1.25rem}.field label{display:block;font-size:.9rem;font-weight:800;margin-bottom:.35rem}.input-wrap{position:relative}.field input{width:100%;padding-right:5.5rem}.suffix{position:absolute;right:.75rem;top:50%;transform:translateY(-50%);font-size:.82rem;color:#73756f;background:#f5f3ed;padding:.25rem .42rem;border-radius:8px}.hint{display:block;font-size:.78rem;color:var(--muted);margin-top:.35rem}.result{margin-top:1.15rem;padding:1.15rem;border-radius:16px;background:var(--soft);border:1px solid #f2c89d}.result b{display:block;font-size:2rem;color:var(--accent-dark)}.result small{display:block;color:var(--muted);margin-top:.25rem}.error{color:#9f1239;background:#fff1f2;border:1px solid #fecdd3;border-radius:12px;padding:.8rem;margin-top:1rem}.note{font-size:.9rem;color:var(--muted)}.sidebar{display:grid;gap:1rem;align-content:start}.method{margin-top:1.2rem;padding-top:1rem;border-top:1px solid var(--line)}.method h2{font-size:1.2rem}.below-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;padding-bottom:2rem}.source-list{display:grid;gap:.75rem}.source-item{border:1px solid var(--line);border-radius:14px;padding:.9rem;background:#fbfaf7}.source-item a{font-weight:800;color:#235845}.source-item p{margin:.3rem 0 0;font-size:.88rem;color:var(--muted)}.faq details{border-top:1px solid var(--line);padding:.8rem 0}.faq details:first-of-type{border-top:0}.faq summary{font-weight:800;cursor:pointer}.faq p{color:var(--muted);margin:.45rem 0 0}.footer{background:#1f211f;color:#d9dbd7;padding:2.6rem 0;margin-top:2rem}.footer-grid{display:grid;grid-template-columns:1fr auto;gap:2rem}.footer a{color:#fff}.footer p{color:#bfc2bd}.page{padding:2.2rem 0}.page .panel{padding:1.5rem}.page h1{font-size:clamp(2rem,4vw,3.2rem);letter-spacing:-.035em}.page h2{margin-top:1.8rem}.table{width:100%;border-collapse:collapse}.table th,.table td{text-align:left;border-bottom:1px solid var(--line);padding:.75rem .5rem;vertical-align:top}.table th{font-size:.84rem;color:var(--muted)}.empty{grid-column:1/-1;padding:2rem;border:1px dashed var(--line);border-radius:16px;color:var(--muted);text-align:center}.disclaimer{background:#fff8e7;border:1px solid #efd596;border-radius:14px;padding:.9rem;font-size:.88rem;color:#66501d}.kbd{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;background:#f2efe8;padding:.1rem .3rem;border-radius:5px}.legal{font-size:.94rem;color:#555}.muted{color:var(--muted)}
@media(max-width:880px){.hero-grid,.calc-layout,.below-grid{grid-template-columns:1fr}.grid{grid-template-columns:1fr 1fr}.trust-strip{grid-template-columns:1fr}.sidebar{grid-template-columns:1fr 1fr}.navlinks{display:none}.hero{padding-top:2.7rem}.footer-grid{grid-template-columns:1fr}.topbar .wrap{display:block}.topbar .wrap span:last-child{display:none}}
@media(max-width:580px){.grid,.fields,.sidebar{grid-template-columns:1fr}.search{flex-direction:column}.hero h1{font-size:2.55rem}.metric{grid-template-columns:1fr 1fr}.calc-box,.info-box,.source-card,.faq-card{padding:1.1rem}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.card{transition:none}}

.multi-result{display:grid!important;gap:.45rem;font-size:1rem!important;color:var(--ink)!important;margin-top:.45rem}.result-row{display:flex;justify-content:space-between;gap:1rem;align-items:center;border-top:1px solid #efd9c1;padding:.48rem 0}.result-row:first-child{border-top:0}.result-row span{font-weight:650;color:var(--muted)}.result-row strong{font-size:1.08rem;color:var(--accent-dark);text-align:right}.result-extra{margin-top:.8rem}.result-action{padding:.72rem .9rem;font-size:.9rem}
@media(max-width:580px){.result-row{align-items:flex-start;flex-direction:column;gap:.12rem}.result-row strong{text-align:left}}

.related-wrap{padding:0 0 2rem}.related-wrap h2{margin:0 0 .8rem}.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.8rem}.related-card{display:flex;gap:.8rem;background:#fff;border:1px solid var(--line);border-radius:16px;padding:1rem;text-decoration:none;box-shadow:0 5px 16px rgba(60,45,25,.035)}.related-card:hover{box-shadow:var(--shadow);transform:translateY(-1px)}.related-card>span{font-size:1.4rem}.related-card small{display:block;color:var(--green);font-weight:800;text-transform:uppercase;font-size:.7rem}.related-card b{display:block;margin:.18rem 0}.related-card p{margin:0;color:var(--muted);font-size:.84rem}.data-note{background:#f0f5ff;border:1px solid #d7e3fa;border-radius:14px;padding:.85rem;color:#43536d;font-size:.86rem}
@media(max-width:880px){.related-grid{grid-template-columns:1fr 1fr}}@media(max-width:580px){.related-grid{grid-template-columns:1fr}}

/* V1.4 project calculators */
.project-section{padding-top:1rem}.project-intro{display:flex;justify-content:space-between;gap:1rem;align-items:end;margin-bottom:1rem}.project-intro p{max-width:720px}.project-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem}.project-card{display:flex;gap:1rem;padding:1.2rem;background:linear-gradient(145deg,#fff,#fff9f1);border:1px solid var(--line);border-radius:20px;text-decoration:none;box-shadow:0 8px 22px rgba(60,45,25,.04)}.project-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.project-icon{display:grid;place-items:center;min-width:52px;height:52px;border-radius:15px;background:#f4e8d9;font-size:1.7rem}.project-card small{color:var(--green);font-weight:800;text-transform:uppercase;font-size:.7rem}.project-card h3{margin:.15rem 0 .35rem}.project-card p{margin:0 0 .65rem;color:var(--muted)}.project-card b{color:var(--accent-dark)}.project-banner{background:linear-gradient(135deg,#233f35,#315b4b);color:#fff;border-radius:20px;padding:1.2rem 1.3rem;margin:0 0 1rem}.project-banner small{opacity:.8;font-weight:800;text-transform:uppercase}.project-banner p{margin:.35rem 0 0;color:#e7f0ec}.project-tools{margin-top:1rem}.project-tools h2{margin-bottom:.8rem}@media(max-width:760px){.project-grid{grid-template-columns:1fr}.project-intro{display:block}}
.print-action{margin-top:.85rem;width:100%}.own-ad-link{background:#fff;color:#171a1d}.own-ad-link:hover{background:#f2f2f2}
@media print{.topbar,.site-header,.breadcrumbs,.sidebar,.footer,.project-tools,.disclaimer,.print-action{display:none!important}body{background:#fff;color:#111}.wrap{width:100%;max-width:none}.calc-layout{display:block;padding:0}.calc-box,.project-banner{box-shadow:none;border:0;padding:0}.project-banner{margin-bottom:1rem}.fields{grid-template-columns:repeat(2,1fr)}.result{break-inside:avoid;border:1px solid #bbb;background:#fff}.method{break-inside:avoid}a{text-decoration:none;color:#111}}