:root{--paper:#FAF9F5;--paper-dim:#F1EFE9;--ink:#15181D;--ink-soft:#4B5259;--navy:#17324A;--navy-deep:#0E2233;--teal:#2A7F7E;--amber:#F2A93B;--amber-deep:#D98F1E;--red-flag:#C1503F;--green-ok:#3F8F5F;--line:#E3DFD5;--line-strong:#CFC9BB;--white:#FFFFFF;--font-display:"Space Grotesk", "Segoe UI", sans-serif;--font-body:"Inter", "Segoe UI", sans-serif;--font-mono:"JetBrains Mono", "Courier New", monospace;--step--1:clamp(0.83rem, 0.8rem + 0.15vw, 0.9rem);--step-0:clamp(1rem, 0.96rem + 0.2vw, 1.1rem);--step-1:clamp(1.2rem, 1.1rem + 0.4vw, 1.4rem);--step-2:clamp(1.5rem, 1.3rem + 0.8vw, 1.9rem);--step-3:clamp(1.9rem, 1.6rem + 1.4vw, 2.6rem);--step-4:clamp(2.4rem, 1.9rem + 2.2vw, 3.6rem);--radius-sm:6px;--radius-md:12px;--radius-lg:20px;--container:1140px;--shadow-card:0 1px 2px rgba(23,50,74,0.06), 0 8px 24px rgba(23,50,74,0.06)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-body);font-size:var(--step-0);line-height:1.6;-webkit-font-smoothing:antialiased}h1,h2,h3,h4{font-family:var(--font-display);color:var(--navy-deep);line-height:1.15;margin:0 0 .5em;letter-spacing:-.01em}h1{font-size:var(--step-4)}h2{font-size:var(--step-3)}h3{font-size:var(--step-2)}h4{font-size:var(--step-1)}p{margin:0 0 1.1em}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid var(--amber);outline-offset:2px}img{max-width:100%;display:block}ul,ol{padding-left:1.3em}.container{max-width:var(--container);margin:0 auto;padding:0 24px}.eyebrow{font-family:var(--font-mono);font-size:var(--step--1);text-transform:uppercase;letter-spacing:.08em;color:var(--teal);font-weight:600}.btn{display:inline-flex;align-items:center;gap:8px;font-family:var(--font-display);font-weight:600;font-size:var(--step--1);padding:12px 22px;border-radius:var(--radius-sm);border:1.5px solid #fff0;cursor:pointer;transition:transform 0.12s ease,box-shadow 0.12s ease}.btn:hover{text-decoration:none}.btn-primary{background:var(--navy);color:var(--white)}.btn-primary:hover{background:var(--navy-deep);box-shadow:var(--shadow-card)}.btn-amber{background:var(--amber);color:var(--navy-deep)}.btn-amber:hover{background:var(--amber-deep)}.btn-ghost{background:#fff0;border-color:var(--line-strong);color:var(--navy)}.btn-ghost:hover{border-color:var(--navy)}.btn:active{transform:translateY(1px)}.btn:disabled{opacity:.5;cursor:not-allowed}.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow-card)}.site-header{position:sticky;top:0;z-index:50;background:rgb(250 249 245 / .92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}.site-header-inner{display:flex;align-items:center;justify-content:space-between;padding:16px 0}.brand{display:flex;align-items:center;gap:10px;font-family:var(--font-display);font-weight:700;font-size:1.25rem;color:var(--navy-deep)}.brand:hover{text-decoration:none}.brand-mark{width:34px;height:34px;border-radius:9px;background:conic-gradient(from 220deg,var(--amber),var(--teal),var(--navy));position:relative}.brand-mark::after{content:"";position:absolute;inset:6px;background:var(--paper);border-radius:5px}.main-nav ul{list-style:none;display:flex;gap:28px;margin:0;padding:0;align-items:center}.main-nav a{color:var(--ink);font-weight:500;font-size:var(--step--1)}.main-nav a:hover{color:var(--teal)}.nav-toggle{display:none}@media (max-width:780px){.main-nav{position:fixed;inset:64px 0 0 0;background:var(--paper);transform:translateX(100%);transition:transform 0.2s ease;overflow-y:auto}.main-nav.open{transform:translateX(0)}.main-nav ul{flex-direction:column;align-items:flex-start;padding:24px;gap:18px}.nav-toggle{display:inline-flex;background:none;border:none;cursor:pointer;flex-direction:column;gap:5px;padding:6px}.nav-toggle span{width:22px;height:2px;background:var(--navy-deep);border-radius:2px}}.site-footer{background:var(--navy-deep);color:#C9D3DA;margin-top:80px;padding:56px 0 28px}.site-footer a{color:#E7ECEF}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;margin-bottom:40px}.footer-grid h4{color:#fff;font-size:var(--step--1);text-transform:uppercase;letter-spacing:.06em}.footer-grid ul{list-style:none;padding:0;margin:0}.footer-grid li{margin-bottom:8px;font-size:var(--step--1)}.footer-bottom{border-top:1px solid rgb(255 255 255 / .12);padding-top:20px;font-size:var(--step--1);display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:#93A2AC}@media (max-width:780px){.footer-grid{grid-template-columns:1fr 1fr}}.hero{padding:72px 0 56px;position:relative;overflow:hidden}.hero-inner{display:grid;grid-template-columns:1.1fr 0.9fr;gap:48px;align-items:center}.hero h1{margin-bottom:.3em}.hero .lede{font-size:var(--step-1);color:var(--ink-soft);max-width:46ch}.hero-cta{display:flex;gap:14px;margin-top:28px;flex-wrap:wrap}@media (max-width:860px){.hero-inner{grid-template-columns:1fr}}.gauge-wrap{display:flex;flex-direction:column;align-items:center;gap:10px}.gauge{width:220px;height:220px}.gauge-value{font-family:var(--font-mono);font-weight:700;fill:var(--navy-deep)}.gauge-label{font-family:var(--font-mono);font-size:var(--step--1);color:var(--ink-soft);text-align:center}.section{padding:56px 0}.section-head{max-width:60ch;margin-bottom:32px}.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:20px}.tool-card{padding:24px;transition:transform 0.15s ease,box-shadow 0.15s ease;display:flex;flex-direction:column;gap:10px}.tool-card:hover{transform:translateY(-3px);box-shadow:0 12px 28px rgb(23 50 74 / .12);text-decoration:none}.tool-card .tool-icon{width:42px;height:42px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:var(--paper-dim);color:var(--navy);font-family:var(--font-mono);font-weight:700}.tool-card h3{font-size:1.15rem;margin-bottom:2px;color:var(--navy-deep)}.tool-card p{font-size:var(--step--1);color:var(--ink-soft);margin-bottom:0}.category-band{display:flex;align-items:baseline;gap:12px;margin:48px 0 20px;border-bottom:1px solid var(--line);padding-bottom:10px}.category-band h2{font-size:var(--step-2);margin:0}.category-band span{color:var(--ink-soft);font-size:var(--step--1)}.tool-hero{background:var(--navy-deep);color:#EDEFF1;padding:48px 0 40px}.tool-hero .eyebrow{color:var(--amber)}.tool-hero h1{color:#fff}.tool-hero p.lede{color:#C4CCD1;max-width:60ch}.tool-app{margin-top:-60px;margin-bottom:40px}.tool-app .card{padding:28px}.tool-field{width:100%;font-family:var(--font-mono);font-size:.95rem;padding:14px;border:1.5px solid var(--line-strong);border-radius:var(--radius-sm);background:var(--paper);color:var(--ink);resize:vertical;min-height:160px}.tool-field:focus{border-color:var(--teal);outline:none;box-shadow:0 0 0 3px rgb(42 127 126 / .15)}.tool-row{display:flex;gap:12px;flex-wrap:wrap;align-items:center;margin-top:14px}.tool-stat-strip{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:14px;margin-top:18px}.stat-box{background:var(--paper-dim);border-radius:var(--radius-sm);padding:14px;text-align:center}.stat-box .num{font-family:var(--font-mono);font-size:1.6rem;font-weight:700;color:var(--navy-deep);display:block}.stat-box .lab{font-size:.78rem;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.04em}.result-verdict{margin-top:18px;padding:16px 18px;border-radius:var(--radius-sm);font-weight:600;display:none}.result-verdict.show{display:block}.verdict-human{background:#E7F3EA;color:var(--green-ok)}.verdict-ai{background:#FBE9E6;color:var(--red-flag)}.verdict-mixed{background:#FCF3E0;color:var(--amber-deep)}.select-input,.text-input{font-family:var(--font-body);padding:10px 12px;border-radius:var(--radius-sm);border:1.5px solid var(--line-strong);background:#fff}table.compare-table{width:100%;border-collapse:collapse;margin-top:10px;font-size:var(--step--1)}table.compare-table th,table.compare-table td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line)}table.compare-table th{font-family:var(--font-mono);text-transform:uppercase;font-size:.75rem;color:var(--ink-soft)}.prompt-lib-grid{display:grid;grid-template-columns:220px 1fr;gap:24px}.prompt-cat-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:4px}.prompt-cat-list button{text-align:left;width:100%;padding:9px 12px;background:none;border:none;border-radius:8px;cursor:pointer;font-size:var(--step--1);color:var(--ink-soft)}.prompt-cat-list button.active,.prompt-cat-list button:hover{background:var(--paper-dim);color:var(--navy-deep);font-weight:600}.prompt-item{border:1px solid var(--line);border-radius:var(--radius-sm);padding:14px 16px;margin-bottom:10px}.prompt-item h4{margin:0 0 6px;font-size:1rem}.prompt-item pre{white-space:pre-wrap;font-family:var(--font-mono);font-size:.85rem;background:var(--paper-dim);padding:10px;border-radius:6px;margin:8px 0}@media (max-width:780px){.prompt-lib-grid{grid-template-columns:1fr}}.article-wrap{display:grid;grid-template-columns:1fr 260px;gap:48px;padding:56px 0}.article-body h2{margin-top:1.6em;font-size:var(--step-2)}.article-body h3{margin-top:1.3em;font-size:var(--step-1)}.article-body ul,.article-body ol{margin-bottom:1.2em}.article-body blockquote{border-left:3px solid var(--amber);margin:1.6em 0;padding:4px 0 4px 20px;color:var(--ink-soft);font-style:italic}.toc{position:sticky;top:100px;align-self:start}.toc h4{font-size:var(--step--1);text-transform:uppercase;letter-spacing:.05em;color:var(--ink-soft)}.toc ol{list-style:none;padding:0;margin:0;counter-reset:toc}.toc li{counter-increment:toc;margin-bottom:10px;font-size:.88rem}.toc a{color:var(--ink)}.toc a::before{content:counter(toc,decimal-leading-zero) "  ";color:var(--amber-deep);font-family:var(--font-mono)}@media (max-width:900px){.article-wrap{grid-template-columns:1fr}.toc{display:none}}.faq-list{margin-top:20px}.faq-item{border-bottom:1px solid var(--line);padding:16px 0}.faq-item summary{cursor:pointer;font-weight:600;font-family:var(--font-display);font-size:1.02rem;color:var(--navy-deep);list-style:none;display:flex;justify-content:space-between;gap:12px}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary::after{content:"+";font-size:1.3rem;color:var(--amber-deep);flex-shrink:0}.faq-item[open] summary::after{content:"\2212"}.faq-item p{margin-top:10px;color:var(--ink-soft)}.static-page{padding:56px 0;max-width:78ch;margin:0 auto}.static-page h2{margin-top:1.6em}.text-center{text-align:center}.mt-0{margin-top:0}.small{font-size:var(--step--1);color:var(--ink-soft)}.badge{display:inline-block;background:var(--paper-dim);color:var(--navy);font-family:var(--font-mono);font-size:.72rem;padding:3px 8px;border-radius:20px;text-transform:uppercase;letter-spacing:.04em}