:root{--ink:#303338;--muted:#5b5b5d;--line:#e6ded3;--paper:#faf8f4;--blue:#9b4307;--blue2:#793200;--cyan:#ffb52f;--navy:#303338;--shadow:0 18px 55px rgba(48,51,56,.1)}
.site-header{border-bottom-color:#ede5d9}
.brand{gap:.65rem}
.brand-logo{display:block;position:relative;overflow:hidden;flex:none;width:114px;height:76px;background:#fff}
.brand-logo img{position:absolute;display:block;width:114px;height:auto;max-width:none;left:0;top:-16px}
.footer .brand-logo{border-radius:5px}
.footer-company{color:#fff;font-size:.95rem}
.navlinks a{color:#393a3e}
.hero{background:linear-gradient(125deg,#fffaf1 0%,#fff 58%,#fff4df 100%)}
.hero:after{border-color:#f0dfbd;box-shadow:0 0 0 70px rgba(255,181,47,.035),0 0 0 140px rgba(255,181,47,.025)}
.tech-visual{background:#303338;transform:rotate(1deg)}
.visual-top i{background:#77797c}
.visual-card{background:#3d4146;border-color:#595c60}
.visual-card b{color:#ffc45c}
.visual-line{background:#62666b}
.card:hover{border-color:#e5bb89;box-shadow:0 16px 38px rgba(82,52,23,.09)}
.icon{border-color:#e5c39b}
.tag{background:#f6f0e7;color:#594a3c}
.cta{background:linear-gradient(115deg,#303338,#624126)}
.cta p{color:#f0e8de}
.cta .button{color:#793200}
.field input:focus,.field textarea:focus,.field select:focus{outline-color:rgba(255,181,47,.22)}
.footer{background:#272a2e}
.footer p,.footer a{color:#d1d1d1}
.footer-bottom{border-top-color:#4a4d51;color:#c0c0c0}
.product-spotlight{display:grid;grid-template-columns:.85fr 1.15fr;align-items:center;gap:3rem}
.product-spotlight p{color:var(--muted);max-width:560px}
.product-spotlight .button{margin-top:1rem}
.product-spotlight img{width:100%;height:auto;border-radius:12px;box-shadow:var(--shadow)}
.challenge-box{padding:1rem 1.1rem;margin:1.4rem 0;border:1px solid #ddc8a8;background:#fffaf2;border-radius:8px}
.challenge-box label{display:block;font-weight:750;margin-bottom:.3rem}
.challenge-box p{margin:.2rem 0 .7rem;color:#4e463e}
.challenge-image{display:block;width:360px;max-width:100%;height:auto;aspect-ratio:15/4;border:1px solid #e5d3b7;border-radius:6px;background:#fffaf2;margin:.6rem 0 .9rem}
.challenge-image[hidden],#challenge-question[hidden]{display:none}
.challenge-row{display:flex;align-items:center;gap:.7rem;flex-wrap:wrap}
.challenge-row input{width:95px;min-height:44px;padding:.55rem .7rem;border:1px solid #aeb9c6;border-radius:7px;font:inherit}
.challenge-row input:focus{outline:3px solid rgba(255,181,47,.22);border-color:var(--blue)}
.challenge-refresh{border:0;background:none;color:var(--blue);font:inherit;font-weight:750;text-decoration:underline;cursor:pointer;padding:.5rem}
.challenge-refresh:disabled{opacity:.55;cursor:wait}
.challenge-help{font-size:.88rem}
.form button[type=submit]:disabled{opacity:.55;cursor:not-allowed;transform:none}
@media(max-width:900px){.product-spotlight{grid-template-columns:1fr}}
@media(max-width:600px){.brand-logo{width:104px;height:70px}.brand-logo img{width:104px;top:-15px}.footer .brand{align-items:center}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button,.card{transition:none}}