:root{--black:#05070a;--ink:#0b1016;--panel:#111821;--panel-2:#0b1118;--line:#344050;--gold:#e8b647;--gold-light:#f6d47f;--white:#f7f8fa;--muted:#c3cbd6;--max:1180px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--black);color:var(--white);font-family:Arial,Helvetica,sans-serif;line-height:1.6}a{color:inherit}a:focus-visible,button:focus-visible{outline:3px solid var(--gold-light);outline-offset:4px}.wrap{width:min(var(--max),calc(100% - 32px));margin-inline:auto}.skip-link{position:fixed;z-index:1000;top:10px;left:10px;padding:10px 14px;background:var(--gold);color:#111;font-weight:800;transform:translateY(-150%)}.skip-link:focus{transform:none}.staging-bar{padding:6px 12px;background:#6f4d0d;color:#fff;text-align:center;font-size:.78rem;font-weight:800;letter-spacing:.04em}.eyebrow{margin:0 0 10px;color:var(--gold-light);font-size:.8rem;font-weight:900;letter-spacing:.16em;text-transform:uppercase}
.vault-nav-inner{min-height:170px;padding-block:18px}.vault-nav-logo-link{flex:0 0 540px;min-width:0}.vault-nav-logo{width:540px;max-width:100%;height:auto}
.hero{position:relative;overflow:hidden;padding:clamp(56px,8vw,102px) 0 70px;background:radial-gradient(circle at 82% 20%,rgba(232,182,71,.22),transparent 28%),linear-gradient(125deg,#06090d 10%,#111b26 63%,#211a0d);border-bottom:1px solid var(--line)}.hero:after{position:absolute;right:-170px;bottom:-220px;width:520px;height:520px;border:1px solid rgba(232,182,71,.15);border-radius:50%;content:"";box-shadow:0 0 0 54px rgba(232,182,71,.035),0 0 0 108px rgba(232,182,71,.025)}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.45fr) minmax(280px,.55fr);align-items:end;gap:clamp(28px,6vw,76px)}h1{max-width:850px;margin:0;font-size:clamp(2.65rem,6.5vw,5.4rem);line-height:.96;letter-spacing:-.05em}.hero-subtitle{max-width:760px;margin:17px 0 0;color:var(--gold-light);font-size:clamp(1.2rem,2.4vw,1.75rem);font-weight:800;line-height:1.25}.hero-copy{max-width:780px;margin:20px 0 0;color:#e1e6ec;font-size:clamp(1rem,1.7vw,1.16rem)}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.button{display:inline-flex;min-height:50px;align-items:center;justify-content:center;padding:12px 20px;border:1px solid var(--gold);border-radius:9px;font-weight:900;text-decoration:none}.button-gold{background:linear-gradient(135deg,#f5d276,#c88d22);color:#15120d}.button-outline{background:rgba(8,11,15,.52);color:var(--white)}.button:hover{filter:brightness(1.09)}.planning-card{padding:24px;border:1px solid #75602f;border-radius:18px;background:rgba(7,10,14,.82);box-shadow:0 20px 50px rgba(0,0,0,.3)}.planning-number{display:grid;width:44px;height:44px;place-items:center;border:1px solid var(--gold);border-radius:50%;color:var(--gold-light);font-weight:900}.planning-card h2{margin:17px 0 8px;font-size:1.35rem;line-height:1.2}.planning-card p{margin:0;color:var(--muted);font-size:.95rem}
.quick-nav{position:sticky;z-index:20;top:0;border-block:1px solid #303946;background:rgba(7,10,14,.96);backdrop-filter:blur(10px)}.quick-links{display:flex;gap:7px;overflow-x:auto;padding-block:10px;scrollbar-width:thin}.quick-links a{flex:none;padding:7px 11px;border:1px solid #455261;border-radius:999px;color:#e9edf2;font-size:.79rem;font-weight:800;text-decoration:none}.quick-links a:hover{border-color:var(--gold);color:var(--gold-light)}
.intro-section{padding:62px 0 34px}.intro-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(24px,6vw,70px);align-items:start}.intro-grid h2,.safety-grid h2,.cta-panel h2{margin:0;font-size:clamp(1.8rem,3.6vw,3rem);line-height:1.08;letter-spacing:-.025em}.intro-grid>p{margin:3px 0 0;color:var(--muted);font-size:1.04rem}.affiliate-disclosure{margin-top:30px;padding:14px 17px;border-left:3px solid var(--gold);border-radius:5px;background:#121a24;color:#e4e8ed;font-size:.9rem}.affiliate-disclosure span{display:inline-block;margin-left:4px;color:var(--white);font-weight:800}
.shopping-phases{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:18px}.shopping-phases article{padding:20px;border:1px solid var(--line);border-radius:14px;background:#0d141d}.phase-label{margin:0 0 7px;color:var(--gold-light);font-size:.76rem;font-weight:900;letter-spacing:.11em;text-transform:uppercase}.shopping-phases h3{margin:0 0 8px;font-size:1.13rem;line-height:1.25}.shopping-phases article>p:last-child{margin:0;color:var(--muted);font-size:.93rem}.installation-caution{grid-column:1/-1;margin:0;padding:14px 16px;border:1px solid #705a31;border-radius:10px;background:#17130d;color:#d8dce2;font-size:.88rem}.installation-caution strong{color:var(--gold-light)}
.guide-section{padding:16px 0 70px}.guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}.essential-card{display:grid;grid-template-columns:50px minmax(0,1fr);gap:17px;scroll-margin-top:90px;padding:clamp(21px,3vw,31px);border:1px solid var(--line);border-radius:18px;background:linear-gradient(145deg,var(--panel),var(--panel-2));box-shadow:0 16px 34px rgba(0,0,0,.2)}.card-number{display:grid;width:46px;height:46px;place-items:center;border:1px solid #79602d;border-radius:12px;background:#201b10;color:var(--gold-light);font-weight:900}.category-label{margin:0 0 5px;color:#d8c188;font-size:.75rem;font-weight:900;letter-spacing:.13em;text-transform:uppercase}.card-copy h2{margin:0;color:var(--white);font-size:1.35rem;line-height:1.2}.card-copy>p:not(.category-label):not(.fit-note){margin:12px 0;color:var(--muted)}.card-copy h3{margin:20px 0 7px;color:var(--gold-light);font-size:.84rem;letter-spacing:.08em;text-transform:uppercase}.card-copy ul{margin:0;padding-left:19px;color:#d7dde5;font-size:.93rem}.card-copy li+li{margin-top:5px}.fit-note{margin:18px 0 21px;padding:13px 14px;border-radius:8px;background:#0a0f15;color:#cdd5df;font-size:.9rem}.fit-note strong{color:var(--white)}.amazon-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:11px 16px;border:1px solid var(--gold);border-radius:8px;background:linear-gradient(135deg,#f3cf72,#c78b20);color:#17130c;font-size:.9rem;font-weight:900;text-align:center;text-decoration:none}.amazon-button:hover{filter:brightness(1.08)}
.safety-section{padding:62px 0;border-block:1px solid var(--line);background:#0c1219}.safety-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(28px,7vw,80px)}.safety-grid p{margin:0;color:var(--muted)}.safety-grid p+p{margin-top:15px}.vault-cta{padding:70px 0}.cta-panel{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(32px,8vw,90px);padding:clamp(28px,5vw,58px);border:1px solid #79602d;border-radius:22px;background:radial-gradient(circle at 95% 10%,rgba(232,182,71,.15),transparent 35%),#111821}.cta-panel p:not(.eyebrow){max-width:640px;margin:16px 0 0;color:var(--muted)}.cta-links{display:grid;gap:12px;align-content:center}.text-link{padding:8px 3px;color:var(--gold-light);font-weight:800;text-decoration:none}.text-link:hover{text-decoration:underline}.site-footer{padding:32px 0;border-top:1px solid var(--line);background:#030406;color:var(--muted);font-size:.88rem}.footer-row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 22px}.footer-row p{margin:0}.footer-row strong{color:var(--white)}
@media(max-width:1280px) and (min-width:1181px){.vault-nav-logo-link{flex-basis:440px}.vault-nav-logo{width:440px}}
@media(max-width:1180px) and (min-width:1021px){.vault-nav-logo-link{flex-basis:380px}.vault-nav-logo{width:380px}}
@media(max-width:1020px){.vault-nav-inner{min-height:0;flex-wrap:wrap;padding-block:.9rem}.vault-nav-logo-link{flex:1 0 100%;min-width:0}.vault-nav-logo{width:min(520px,100%)}.vault-mobile-toggle{display:inline-flex;margin-left:auto}.vault-primary-nav{display:none;width:100%;margin:0;padding-top:.25rem}.vault-primary-nav[data-open="true"]{display:block}.vault-primary-list{display:grid;grid-template-columns:1fr;gap:.55rem}.vault-primary-list>li{width:100%}.vault-nav-control{width:100%;min-height:48px;justify-content:space-between;padding:.78rem .9rem;font-size:.88rem;text-align:left}.vault-shop-priority{justify-content:flex-start;min-height:52px}.vault-dropdown-menu,.vault-resources-menu{position:static;width:100%;margin-top:.45rem;border-color:#3d4859;border-radius:10px;box-shadow:none}.vault-dropdown-link{min-height:48px;padding:.78rem .9rem}.hero-grid,.intro-grid,.safety-grid,.cta-panel{grid-template-columns:1fr}.guide-grid{grid-template-columns:1fr}.planning-card{max-width:580px}.quick-nav{position:static}}
@media(max-width:700px){.shopping-phases{grid-template-columns:1fr}.installation-caution{grid-column:auto}}
@media(max-width:600px){.vault-nav-logo{width:min(340px,100%)}.wrap{width:min(var(--max),calc(100% - 28px))}.hero{padding:47px 0 51px}.hero-grid{gap:30px}.hero-actions{display:grid}.button{width:100%}.intro-section{padding-top:48px}.affiliate-disclosure span{display:block;margin:4px 0 0}.essential-card{grid-template-columns:1fr;gap:14px;padding:20px}.card-number{width:42px;height:42px}.amazon-button{width:100%}.safety-section,.vault-cta{padding:50px 0}.footer-row{display:grid;text-align:center}.quick-links{margin-inline:-14px;padding-inline:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}