@font-face{font-family:Outfit;src:url("fonts/outfit-700-800-latin.woff2") format("woff2");font-style:normal;font-weight:700 800;font-display:swap}
:root{--paper:#f7f3e8;--sheet:#fffdf7;--ink:#101b2f;--muted:#5d6572;--line:#d9d4c8;--solar:#f4b41a;--sun:#ffcf4c;--teal:#167c74;--navy:#111d33;--shadow:0 18px 50px rgba(17,29,51,.09);color-scheme:light}
[data-theme=dark]{--paper:#0d1523;--sheet:#151f30;--ink:#f4f0e7;--muted:#adb6c4;--line:#344055;--solar:#ffc23d;--sun:#ffd86b;--teal:#5fd1bd;--navy:#080e19;--shadow:0 20px 60px rgba(0,0,0,.3);color-scheme:dark}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 ui-sans-serif,Segoe UI,Helvetica Neue,sans-serif}a{color:inherit}button,input,select,textarea{font:inherit}.skip{position:absolute;left:-9999px}.skip:focus{left:1rem;top:1rem;z-index:99;background:var(--sheet);padding:.7rem}
.site-header{border-bottom:1px solid var(--line);background:var(--sheet)}.header-inner,.wrap{width:min(1160px,calc(100% - 32px));margin:auto}.header-inner{min-height:74px;display:flex;align-items:center;gap:24px}.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}.brand-icon-surface{width:46px;height:46px;display:grid;place-items:center;background:#fffdf7;border-radius:8px}.brand img{display:block;width:40px;height:40px;object-fit:contain}.brand-name{font-family:Outfit,Avenir Next,Segoe UI,sans-serif;font-size:1.42rem;font-weight:800;line-height:1;letter-spacing:-.045em;white-space:nowrap;color:var(--ink)}.brand-fast{color:#f4b41a}.nav{display:flex;gap:20px;margin-left:auto}.nav a{text-decoration:none;font-size:.86rem;font-weight:700}.icon-button{border:1px solid var(--line);background:transparent;color:var(--ink);width:42px;height:42px;display:grid;place-items:center;border-radius:10px;cursor:pointer}.icon-button svg{width:20px;height:20px}
.hero{padding:72px 0 50px;position:relative;overflow:hidden}.hero:after{content:"";position:absolute;width:46%;height:4px;right:-4%;top:90px;background:linear-gradient(90deg,transparent,var(--solar));transform:rotate(-7deg);animation:beam 1.1s ease-out both}.eyebrow{text-transform:uppercase;letter-spacing:.16em;font-size:.73rem;font-weight:800;color:var(--teal)}h1,h2,h3{font-family:Georgia,Cambria,serif;line-height:1.08;margin:0 0 .65em}.hero h1{font-size:clamp(3rem,8vw,6.4rem);max-width:800px;letter-spacing:-.055em}.hero h1 em{font-style:normal;color:var(--solar)}.lede{font-size:1.15rem;color:var(--muted);max-width:650px}.search-shell{margin-top:34px;max-width:820px;position:relative}.search-shell svg{position:absolute;left:19px;top:19px;width:22px}.search-shell input{width:100%;padding:18px 20px 18px 55px;border:2px solid var(--ink);background:var(--sheet);color:var(--ink);box-shadow:8px 8px 0 var(--solar);outline:none}.search-shell input:focus{box-shadow:8px 8px 0 var(--teal)}.search-results{position:absolute;z-index:10;top:100%;left:0;right:0;background:var(--sheet);border:1px solid var(--line);box-shadow:var(--shadow);max-height:400px;overflow:auto}.search-results:empty{display:none}.search-results a{display:block;padding:12px 16px;text-decoration:none;border-bottom:1px solid var(--line)}.search-results a:hover,.search-results a:focus{background:color-mix(in srgb,var(--solar) 15%,var(--sheet))}
.section{padding:56px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px}.section h2{font-size:clamp(2rem,4vw,3.2rem)}.feature{display:grid;grid-template-columns:1fr .9fr;background:var(--navy);color:#fff;box-shadow:var(--shadow)}.feature-copy{padding:48px}.feature-copy h2{font-size:3rem}.feature-calc{background:var(--sheet);color:var(--ink);padding:32px}.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line)}.tool-card{background:var(--sheet);padding:24px;min-height:180px;text-decoration:none;position:relative;transition:transform .2s,background .2s}.tool-card:hover{background:color-mix(in srgb,var(--solar) 11%,var(--sheet));transform:translateY(-3px)}.tool-card .number{font:700 .72rem ui-monospace,monospace;color:var(--teal);letter-spacing:.1em}.tool-card h3{font-size:1.35rem;margin-top:26px}.tool-card p{font-size:.9rem;color:var(--muted);margin:0}.categories{display:grid;grid-template-columns:repeat(2,1fr);border-top:1px solid var(--line)}.category-row{display:flex;justify-content:space-between;padding:20px 4px;border-bottom:1px solid var(--line);text-decoration:none}.category-row:nth-child(odd){padding-right:30px}.category-row:nth-child(even){padding-left:30px}.category-row strong{font-family:Georgia,serif;font-size:1.2rem}.category-row span{color:var(--muted)}
.trust{background:var(--solar);color:#1a1a1a}.trust .wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;padding:30px 0}.trust strong{display:block;font-family:Georgia,serif;font-size:1.35rem}.faq{max-width:820px}.faq details{border-top:1px solid var(--line);padding:18px 0}.faq summary{font-weight:750;cursor:pointer}.site-footer{background:var(--navy);color:#eef1f6;padding:50px 0 28px}.footer-grid{display:grid;grid-template-columns:1fr 2fr;gap:50px}.brand-footer .brand-name{color:#eef1f6}.brand-footer+p{margin:.8rem 0 0}.footer-links{display:flex;flex-wrap:wrap;gap:12px 24px}.footer-links a{color:#c8d0dc}.fine{border-top:1px solid #344055;margin-top:35px;padding-top:20px;color:#9ba6b6;font-size:.8rem}
.breadcrumbs{font-size:.82rem;color:var(--muted);padding:24px 0}.breadcrumbs a{color:var(--teal)}.page-head{padding:20px 0 32px}.page-head h1{font-size:clamp(2.6rem,6vw,5rem);letter-spacing:-.04em;max-width:900px}.workspace{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(300px,.95fr);border:1px solid var(--line);background:var(--sheet);box-shadow:var(--shadow)}.calculator-form{padding:34px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.field{min-width:0}.field label{display:block;font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;font-weight:800;margin-bottom:6px}.control-wrap{display:flex;border:1px solid var(--line);background:var(--paper)}.control-wrap:focus-within{outline:3px solid color-mix(in srgb,var(--solar) 45%,transparent);border-color:var(--ink)}.control-wrap input,.control-wrap select,.control-wrap textarea{width:100%;min-width:0;border:0;background:transparent;color:var(--ink);padding:12px;outline:0}.control-wrap textarea{min-height:105px;resize:vertical}.unit{padding:12px 10px;color:var(--muted);font-size:.82rem}.field.check{display:flex;align-items:end}.field.check label{font-size:.9rem;text-transform:none}.actions{display:flex;gap:10px;margin-top:24px}.button{border:2px solid var(--ink);background:var(--solar);color:#121212;padding:11px 18px;font-weight:800;cursor:pointer}.button.secondary{background:transparent;color:var(--ink);border-color:var(--line)}.button:hover{transform:translateY(-1px)}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid var(--teal);outline-offset:3px}.result-panel{background:var(--navy);color:#fff;padding:36px;display:flex;flex-direction:column;justify-content:center;position:relative;overflow:hidden}.result-panel:after{content:"";position:absolute;right:-80px;bottom:-80px;width:220px;height:220px;border:28px solid var(--solar);border-radius:50%;opacity:.18}.result-kicker{text-transform:uppercase;font-weight:800;letter-spacing:.13em;color:var(--sun);font-size:.72rem}.result-main{font:700 clamp(2.1rem,5vw,4.2rem)/1.05 Georgia,serif;margin:14px 0;font-variant-numeric:tabular-nums;word-break:break-word}.result-list{position:relative;z-index:1}.result-item{border-top:1px solid #344055;padding:10px 0;display:flex;justify-content:space-between;gap:15px}.result-error{color:#ffd2bd}.result-tools{display:flex;gap:8px;margin-top:20px}.result-tools button{color:white;border:1px solid #52617a;background:transparent;padding:8px 11px;cursor:pointer}.article-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(240px,1fr);gap:60px;padding:60px 0}.prose{max-width:740px}.prose h2{font-size:2.1rem;margin-top:1.5em}.formula{background:var(--sheet);border-left:5px solid var(--solar);padding:18px;font-family:ui-monospace,monospace;overflow-wrap:anywhere}.notice{border:1px solid var(--line);padding:18px;color:var(--muted);font-size:.9rem}.related a{display:block;padding:14px 0;border-bottom:1px solid var(--line);font-weight:700}.category-hero{padding:45px 0}.category-hero h1{font-size:clamp(2.6rem,6vw,5rem)}.empty{padding:30px;background:var(--sheet);border:1px solid var(--line);color:var(--muted)}
@keyframes beam{from{transform:translateX(40%) rotate(-7deg);opacity:0}to{opacity:1}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}}@media(max-width:760px){.header-inner{gap:14px}.brand-icon-surface{width:40px;height:40px}.brand img{width:35px;height:35px}.brand-name{font-size:1.18rem}.nav{margin-left:auto}.nav a{display:none}.nav a:last-child{display:block;font-size:.78rem;white-space:nowrap}.hero{padding-top:45px}.feature,.workspace,.article-grid,.footer-grid{grid-template-columns:1fr}.feature-copy{padding:32px}.feature-copy h2{font-size:2.3rem}.quick-grid{grid-template-columns:1fr 1fr}.categories{grid-template-columns:1fr}.category-row:nth-child(n){padding:16px 4px}.trust .wrap{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.calculator-form,.result-panel{padding:25px}.article-grid{gap:20px}}@media(max-width:450px){.quick-grid{grid-template-columns:1fr}.header-inner{gap:9px}.brand{gap:7px}.brand-name{font-size:1.02rem}.icon-button{width:38px;height:38px}.feature-copy{padding:25px}}@media(max-width:350px){.nav{display:none}}